TY - JOUR T1 - The Aqueous Geochemistry of Neptunium: Dynamic Control of Soluble Concentrations with Applications to Nuclear Waste Disposal AN - 17467298; 4669899 AB - The valence state of neptunium, one of the most important radionuclides of concern for long-term emplacement of nuclear waste, primarily defines its geochemical reactions and migration behavior. We evaluate how redox potential and solid-phase stability interact and influence neptunium solubility and aqueous speciation in natural systems. Neptunium thermodynamic data for the most important valence states for natural waters, +IV and +V, are updated to correct database inconsistencies. The most significant changes are as follows: (1) Np sub(2)O sub(5)(cr) is 2 orders of magnitude more stable than reported previously, (2) the stability of NpO sub(2)OH(aq) is reduced, (3) NpO sub(2)(OH) sub(2) super(-) and mixed Np(V) hydroxo-carbonato species become important at high pH, and (4) Np(OH) sub(5) super(-) is disregarded as a valid species. As a result, Np sub(2)O sub(5) and Np(OH) sub(4)(am) are the stable solids in aquifers of low ionic strength, neptunium solubility decreases in the pH range 10-12 and increases at pH above 12, and both redox potential and Np(OH) sub(4)(am) solubility product control soluble neptunium concentrations at neutral pH and Eh between -0.2 and 0.3. These relationships are important for effective nuclear waste package design, such as including cement as an engineered barrier and evaluating impacts of discharged solutions on natural waters in release scenarios at nuclear waste storage facilities. JF - Environmental Science & Technology AU - Kaszuba, J P AU - Runde, W H AD - Los Alamos National Laboratory, Chemical Science and Technology Division, CST-7, Mail Stop J514, Los Alamos, NM 87545, USA, runde@lanl.gov Y1 - 1999/12/15/ PY - 1999 DA - 1999 Dec 15 SP - 4427 EP - 4433 VL - 33 IS - 24 SN - 0013-936X, 0013-936X KW - redox potential KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Waste disposal KW - Geochemistry KW - Radioactive wastes KW - Storage KW - Chemical reactions KW - Hazardous wastes KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17467298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=The+Aqueous+Geochemistry+of+Neptunium%3A+Dynamic+Control+of+Soluble+Concentrations+with+Applications+to+Nuclear+Waste+Disposal&rft.au=Kaszuba%2C+J+P%3BRunde%2C+W+H&rft.aulast=Kaszuba&rft.aufirst=J&rft.date=1999-12-15&rft.volume=33&rft.issue=24&rft.spage=4427&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes990470x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hazardous wastes; Radioactive wastes; Storage; Waste disposal; Geochemistry; Chemical reactions DO - http://dx.doi.org/10.1021/es990470x ER - TY - JOUR T1 - Assessing the presence of garnet-pyroxenite in the mantle sources of basalts through combined hafnium-neodymium-thorium isotope systematics AN - 50113845; 2000-030566 AB - The existence of an enriched component in the mantle with a pyroxenitic or eclogitic composition and its importance for basalt genesis has been discussed for over two decades. Inferences about the depth of melting as well as the dynamics of melting based on the presence of garnet and the location of the spinel-garnet transition are different if garnet-pyroxenite is present in the peridotitic mantle. Trace element partition coefficients are dependent on composition, and the differences between garnet-pyroxenite and peridotite are large enough to produce significant differences in trace element fractionation between melts derived from these different lithologies. Melts derived from garnet-pyroxenite or eclogite-bearing sources will have small or no (super 230) Th excesses, which are largely independent of melting and upwelling rate. Melts derived from garnet-peridotite will have significant (super 230) Th excesses, which are dependent on melting and upwelling rate. We show that the combined hafnium-neodymium-thorium (Hf-Nd-Th) isotope and trace element data can distinguish between melts derived from peridotitic and pyroxenitic or eclogitic sources. We also present new Hf isotope data for Hawaiian basalts and use the combined Hf-Nd-Th isotope and trace element systematics to argue against the existence of garnet-pyroxenite or eclogite in the source of Hawaiian basalts. It is especially the large variation in degree of melting for relatively constant isotopic composition that allows us to rule out garnet-pyroxenite in the source of the Hawaiian basalts. JF - Geochemistry, Geophysics, Geosystems - G3 AU - Stracke, Andreas AU - Salters, Vincent J M AU - Sims, Ken W W Y1 - 1999/12/13/ PY - 1999 DA - 1999 Dec 13 EP - 7,832 words PB - American Geophysical Union and The Geochemical Society VL - 1 IS - 1 KW - United States KW - silicates KW - upwelling KW - Hf-177/Hf-176 KW - volcanic rocks KW - isotopes KW - igneous rocks KW - garnet group KW - mantle KW - stable isotopes KW - uranium disequilibrium KW - partitioning KW - plutonic rocks KW - mineral composition KW - melting KW - hafnium KW - dynamics KW - basalts KW - orthosilicates KW - rare earths KW - trace elements KW - garnet pyroxenite KW - isotope ratios KW - Hawaii KW - East Pacific Ocean Islands KW - ultramafics KW - nesosilicates KW - Nd-144/Nd-143 KW - genesis KW - pyroxenite KW - metals KW - peridotites KW - Oceania KW - thorium KW - Polynesia KW - neodymium KW - actinides KW - chemical fractionation KW - 18:Solid-earth geophysics KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50113845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochemistry%2C+Geophysics%2C+Geosystems+-+G3&rft.atitle=Assessing+the+presence+of+garnet-pyroxenite+in+the+mantle+sources+of+basalts+through+combined+hafnium-neodymium-thorium+isotope+systematics&rft.au=Stracke%2C+Andreas%3BSalters%2C+Vincent+J+M%3BSims%2C+Ken+W+W&rft.aulast=Stracke&rft.aufirst=Andreas&rft.date=1999-12-13&rft.volume=1&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geochemistry%2C+Geophysics%2C+Geosystems+-+G3&rft.issn=1525-2027&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 48 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on March 24, 2000 N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - actinides; basalts; chemical fractionation; dynamics; East Pacific Ocean Islands; garnet group; garnet pyroxenite; genesis; hafnium; Hawaii; Hf-177/Hf-176; igneous rocks; isotope ratios; isotopes; mantle; melting; metals; mineral composition; Nd-144/Nd-143; neodymium; nesosilicates; Oceania; orthosilicates; partitioning; peridotites; plutonic rocks; Polynesia; pyroxenite; rare earths; silicates; stable isotopes; thorium; trace elements; ultramafics; United States; upwelling; uranium disequilibrium; volcanic rocks ER - TY - JOUR T1 - Haloalkane dehalogenases: structure of a Rhodococcus enzyme. AN - 69341188; 10587433 AB - The hydrolytic haloalkane dehalogenases are promising bioremediation and biocatalytic agents. Two general classes of dehalogenases have been reported from Xanthobacter and Rhodococcus. While these enzymes share 30% amino acid sequence identity, they have significantly different substrate specificities and halide-binding properties. We report the 1.5 A resolution crystal structure of the Rhodococcus dehalogenase at pH 5.5, pH 7.0, and pH 5.5 in the presence of NaI. The Rhodococcus and Xanthobacter enzymes have significant structural homology in the alpha/beta hydrolase core, but differ considerably in the cap domain. Consistent with its broad specificity for primary, secondary, and cyclic haloalkanes, the Rhodococcus enzyme has a substantially larger active site cavity. Significantly, the Rhodococcus dehalogenase has a different catalytic triad topology than the Xanthobacter enzyme. In the Xanthobacter dehalogenase, the third carboxylate functionality in the triad is provided by D260, which is positioned on the loop between beta7 and the penultimate helix. The carboxylate functionality in the Rhodococcus catalytic triad is donated from E141. A model of the enzyme cocrystallized with sodium iodide shows two iodide binding sites; one that defines the normal substrate and product-binding site and a second within the active site region. In the substrate and product complexes, the halogen binds to the Xanthobacter enzyme via hydrogen bonds with the N(eta)H of both W125 and W175. The Rhodococcusenzyme does not have a tryptophan analogous to W175. Instead, bound halide is stabilized with hydrogen bonds to the N(eta)H of W118 and to N(delta)H of N52. It appears that when cocrystallized with NaI the Rhodococcus enzyme has a rare stable S-I covalent bond to S(gamma) of C187. JF - Biochemistry AU - Newman, J AU - Peat, T S AU - Richard, R AU - Kan, L AU - Swanson, P E AU - Affholter, J A AU - Holmes, I H AU - Schindler, J F AU - Unkefer, C J AU - Terwilliger, T C AD - Life Sciences Division, Los Alamos National Laboratory, New Mexico. janet@stromix.com Y1 - 1999/12/07/ PY - 1999 DA - 1999 Dec 07 SP - 16105 EP - 16114 VL - 38 IS - 49 SN - 0006-2960, 0006-2960 KW - Peptide Fragments KW - 0 KW - Phenylalanine KW - 47E5O17Y3R KW - Tryptophan KW - 8DUH1N11BX KW - Hydrolases KW - EC 3.- KW - haloalkane dehalogenase KW - EC 3.8.1.5 KW - Sodium Iodide KW - F5WR8N145C KW - Index Medicus KW - Peptide Fragments -- genetics KW - Hydrogen-Ion Concentration KW - Xanthobacter -- genetics KW - Amino Acid Sequence KW - Xanthobacter -- enzymology KW - Evolution, Molecular KW - Mutagenesis, Site-Directed KW - Protein Structure, Tertiary -- genetics KW - Peptide Fragments -- chemistry KW - Molecular Sequence Data KW - Protein Folding KW - Crystallography, X-Ray KW - Phenylalanine -- genetics KW - Binding Sites -- genetics KW - Protein Structure, Secondary -- genetics KW - Sodium Iodide -- chemistry KW - Tryptophan -- genetics KW - Hydrolases -- chemistry KW - Hydrolases -- genetics KW - Rhodococcus -- enzymology KW - Rhodococcus -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69341188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Haloalkane+dehalogenases%3A+structure+of+a+Rhodococcus+enzyme.&rft.au=Newman%2C+J%3BPeat%2C+T+S%3BRichard%2C+R%3BKan%2C+L%3BSwanson%2C+P+E%3BAffholter%2C+J+A%3BHolmes%2C+I+H%3BSchindler%2C+J+F%3BUnkefer%2C+C+J%3BTerwilliger%2C+T+C&rft.aulast=Newman&rft.aufirst=J&rft.date=1999-12-07&rft.volume=38&rft.issue=49&rft.spage=16105&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-01-10 N1 - Date created - 2000-01-10 N1 - Date revised - 2017-02-17 N1 - Genetic sequence - 1CQW; PDB; 1BN7; 1BN6 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Moment tensor inversion of single-hole mining cast blasts AN - 52411386; 2000-004785 JF - Geophysical Journal International AU - Yang, Xiaoning AU - Stump, Brian W AU - Pearson, D Craig Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 679 EP - 690 PB - Blackwell Scientific, Oxford VL - 139 IS - 3 SN - 0956-540X, 0956-540X KW - P-waves KW - mining KW - Green function KW - elastic waves KW - seismic sources KW - refraction methods KW - blasting KW - time factor KW - mining geology KW - velocity KW - nuclear explosions KW - body waves KW - experimental studies KW - seismology KW - explosions KW - geophysical methods KW - inverse problem KW - seismic methods KW - boreholes KW - moment tensors KW - seismic waves KW - seismic networks KW - S-waves KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52411386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Journal+International&rft.atitle=Moment+tensor+inversion+of+single-hole+mining+cast+blasts&rft.au=Yang%2C+Xiaoning%3BStump%2C+Brian+W%3BPearson%2C+D+Craig&rft.aulast=Yang&rft.aufirst=Xiaoning&rft.date=1999-12-01&rft.volume=139&rft.issue=3&rft.spage=679&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/ L2 - http://www.blackwellpublishing.com/journal.asp?ref=0956-540X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - amplitude; blasting; body waves; boreholes; elastic waves; experimental studies; explosions; geophysical methods; Green function; inverse problem; mining; mining geology; moment tensors; nuclear explosions; P-waves; refraction methods; S-waves; seismic methods; seismic networks; seismic sources; seismic waves; seismology; time factor; velocity ER - TY - JOUR T1 - Stagnant lid convection in a spherical shell AN - 52407200; 2000-008704 AB - A compelling explanation for the observed lack of mobile surface plates on the terrestrial planets is that the strong temperature dependence of silicate rheology leads to a quasi-rigid stagnant lid at the cool surface of the convecting planetary mantle. We investigate such stagnant lid convection in an internally heated spherical shell. For the parameter range we study, convection beneath the lid is steady in time and characterized by cylindrical upwellings surrounded by cold sheet-like downwellings that exhibit dodecahedronal (l = 6, m = {0,5}) symmetry. The scaling relationship we obtain for the heat flux is very similar to results from two-dimensional numerical experiments and asymptotic boundary layer analyses. It seems that the predictions of two-dimensional models, in particular, low heat transport efficiency and extensive melting, also apply in fully three-dimensional spherical geometry. JF - Physics of the Earth and Planetary Interiors AU - Reese, C C AU - Solomatov, V S AU - Baumgardner, J R AU - Yang, W S Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 1 EP - 7 PB - Elsevier, Amsterdam VL - 116 IS - 1-4 SN - 0031-9201, 0031-9201 KW - stagnant lid convection KW - upwelling KW - experimental studies KW - heat flux KW - Earth KW - data processing KW - mantle KW - convection KW - two-dimensional models KW - planets KW - plate tectonics KW - melting KW - downwelling KW - viscosity KW - rheology KW - heat flow KW - digital simulation KW - planetology KW - heat transfer KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52407200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+of+the+Earth+and+Planetary+Interiors&rft.atitle=Stagnant+lid+convection+in+a+spherical+shell&rft.au=Reese%2C+C+C%3BSolomatov%2C+V+S%3BBaumgardner%2C+J+R%3BYang%2C+W+S&rft.aulast=Reese&rft.aufirst=C&rft.date=1999-12-01&rft.volume=116&rft.issue=1-4&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - convection; data processing; digital simulation; downwelling; Earth; experimental studies; heat flow; heat flux; heat transfer; mantle; melting; planetology; planets; plate tectonics; rheology; stagnant lid convection; two-dimensional models; upwelling; viscosity ER - TY - JOUR T1 - Structure of spinel AN - 52375433; 2000-029454 AB - This paper reviews the crystal structure of compounds with the general formula AB (sub 2) X (sub 4) , which crystallize with the same atomic structure as the mineral spinel, MgAl (sub 2) O (sub 4) . Three degrees of freedom associated with the detailed atomic arrangements of spinels are considered here: (i) the lattice parameter, a; (ii) the anion parameter, u; and (iii) the cation inversion parameter, i. Oxide spinels are used as examples to explore the interrelationships between these parameters. JF - Journal of the American Ceramic Society AU - Sickafus, Kurt E AU - Wills, John M AU - Grimes, Norman W A2 - Sickafus, Kurt E. A2 - Hughes, Richard Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 3279 EP - 3292 PB - American Ceramic Society, Columbus, OH VL - 82 IS - 12 SN - 0002-7820, 0002-7820 KW - anions KW - spinel KW - oxides KW - crystallization KW - cations KW - crystal structure KW - lattice parameters KW - minerals KW - formula KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52375433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Ceramic+Society&rft.atitle=Structure+of+spinel&rft.au=Sickafus%2C+Kurt+E%3BWills%2C+John+M%3BGrimes%2C+Norman+W&rft.aulast=Sickafus&rft.aufirst=Kurt&rft.date=1999-12-01&rft.volume=82&rft.issue=12&rft.spage=3279&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Ceramic+Society&rft.issn=00027820&rft_id=info:doi/ L2 - http://www.blackwellpublishing.com/journal.asp?ref=0002-7820&site=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 76 N1 - PubXState - OH N1 - Document feature - illus. incl. 4 tables, block diags. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anions; cations; crystal structure; crystallization; formula; lattice parameters; minerals; oxides; spinel ER - TY - JOUR T1 - Aftershocks of an explosively induced mine collapse at White Pine, Michigan AN - 52374690; 2000-027982 AB - We recorded an explosively induced, 320-m-deep mine collapse and subsequent aftershocks at White Pine, Michigan, using an array of 12 seismic stations, sited within 1 km of surface ground zero. The collapse, which followed the rubblizing of a 2X10 (super 4) m (super 2) panel of a room-and-pillar copper mine, was induced to facilitate leaching operations. The explosions produced little seismic energy; however, fracturing and collapse stages produced large signals that were observed at distances up to 900 km, yielding a magnitude (m (sub bLg) ) of 2.8. Previous work showed the initial collapse to be an expanding seismic source, interpreted as an opening tensile crack, opposite to the implosional character most often observed for natural mine collapses (Yang et al., 1998). We counted over 4000 aftershocks; their occurrence rate followed the modified Omori law: rate = 560 (time - 0.01) (super -1.3) , with time in hours. Based on P-wave polarities, we identified events of shear-slip, implosional, and tensile character in the aftershock sequence. For shear-slip events, we found stress drops of 1 bar or less, seismic moments of 10 (super 15) -10 (super 17) dyne cm, (M (sub w) - 0.8-0.5) and source radii of 10-50 m. Corner frequencies for implosional events were relatively low, an indication that the collapsed cavity played a role in the source process. This caused implosional events to separate from other events in source parameter plots, providing a technique for classifying events of unknown type. We obtained locations of 135 aftershocks using P- and S-wave data. The aftershock zone was less than 100-m thick, situated just above and along the western, mined edge of the collapsed mine panel. Implosional events occurred at the bottom of the active volume, while shear-slip events were distributed throughout. Shear-slip focal mechanisms indicated thrusting along north-striking planes, consistent with the high, east-west regional compressive stress, coupled with a local decrease in vertical stress. The inferred deficit of vertical stress above the western panel edge following collapse indicated that overburden load shifted preferentially to the surrounding, unmined areas, consistent with lower-than-predicted stresses measured in the first row of intact pillars. JF - Bulletin of the Seismological Society of America AU - Phillips, W Scott AU - Pearson, D Craig AU - Yang, Xiaoning AU - Stump, Brian W Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 1575 EP - 1590 PB - Seismological Society of America, Berkeley, CA VL - 89 IS - 6 SN - 0037-1106, 0037-1106 KW - United States KW - P-waves KW - shallow-focus earthquakes KW - stability KW - elastic waves KW - frequency KW - seismic sources KW - Ontonagon County Michigan KW - seismicity KW - arrival time KW - induced earthquakes KW - White Pine Michigan KW - seismograms KW - mines KW - high-resolution methods KW - body waves KW - explosions KW - stress KW - Michigan Upper Peninsula KW - magnitude KW - depth KW - aftershocks KW - epicenters KW - seismic waves KW - Michigan KW - earthquakes KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52374690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Aftershocks+of+an+explosively+induced+mine+collapse+at+White+Pine%2C+Michigan&rft.au=Phillips%2C+W+Scott%3BPearson%2C+D+Craig%3BYang%2C+Xiaoning%3BStump%2C+Brian+W&rft.aulast=Phillips&rft.aufirst=W&rft.date=1999-12-01&rft.volume=89&rft.issue=6&rft.spage=1575&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 33 N1 - PubXState - CA N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - aftershocks; arrival time; body waves; depth; earthquakes; elastic waves; epicenters; explosions; frequency; high-resolution methods; induced earthquakes; magnitude; Michigan; Michigan Upper Peninsula; mines; Ontonagon County Michigan; P-waves; S-waves; seismic sources; seismic waves; seismicity; seismograms; shallow-focus earthquakes; stability; stress; United States; White Pine Michigan ER - TY - JOUR T1 - Cation disorder and vacancy distribution in nonstoichiometric magnesium aluminate spinel, MgO.xAl (sub 2) O (sub 3) AN - 52373571; 2000-029455 AB - Neutron diffractometry and X-ray diffractometry were used to characterize the cation disorder and vacancy distribution in nonstoichiometric spinel, MgO.xAl (sub 2) O (sub 3) , where x> or =1.0. Both synthetic and natural samples were examined. Least-squares refinements of integrated intensities for single crystals and Rietveld profile refinements for powders yielded the average scattering "power" from tetrahedral and octahedral sites within the almost-perfect cubic close-packed oxygen sublattice. The cation disorder was calculated assuming models in which the vacancies resided on tetrahedral, octahedral, or both types of sites. No degree of cation disorder was consistent with the tetrahedral vacancy model, and vacancies most likely resided on octahedral sites. JF - Journal of the American Ceramic Society AU - Sheldon, Robert I AU - Hartmann, Thomas AU - Sickafus, Kurt E AU - Ibarra, Angel AU - Scott, Brian L AU - Argyriou, Dimitri N AU - Larson, Allen C AU - Von Dreele, Robert B A2 - Sickafus, Kurt E. A2 - Hughes, Richard Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 3293 EP - 3298 PB - American Ceramic Society, Columbus, OH VL - 82 IS - 12 SN - 0002-7820, 0002-7820 KW - X-ray diffraction data KW - crystal systems KW - natural materials KW - statistical analysis KW - characterization KW - spinel KW - crystal structure KW - Rietveld refinement KW - distribution KW - magnesium aluminate KW - order-disorder KW - least-squares analysis KW - spinel structure KW - neutron diffraction data KW - oxides KW - cations KW - stoichiometry KW - synthetic materials KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52373571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Ceramic+Society&rft.atitle=Cation+disorder+and+vacancy+distribution+in+nonstoichiometric+magnesium+aluminate+spinel%2C+MgO.xAl+%28sub+2%29+O+%28sub+3%29&rft.au=Sheldon%2C+Robert+I%3BHartmann%2C+Thomas%3BSickafus%2C+Kurt+E%3BIbarra%2C+Angel%3BScott%2C+Brian+L%3BArgyriou%2C+Dimitri+N%3BLarson%2C+Allen+C%3BVon+Dreele%2C+Robert+B&rft.aulast=Sheldon&rft.aufirst=Robert&rft.date=1999-12-01&rft.volume=82&rft.issue=12&rft.spage=3293&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Ceramic+Society&rft.issn=00027820&rft_id=info:doi/ L2 - http://www.blackwellpublishing.com/journal.asp?ref=0002-7820&site=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 24 N1 - PubXState - OH N1 - Document feature - illus. incl. 3 tables, block diag. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - cations; characterization; crystal structure; crystal systems; distribution; least-squares analysis; magnesium aluminate; natural materials; neutron diffraction data; order-disorder; oxides; Rietveld refinement; spinel; spinel structure; statistical analysis; stoichiometry; synthetic materials; X-ray diffraction data ER - TY - JOUR T1 - Dislocations and mechanical properties of MgO-Al (sub 2) O (sub 3) spinel single crystals AN - 52372475; 2000-029456 AB - MgO.nAl (sub 2) O (sub 3) spinel single crystals can be deformed plastically at high temperatures, displaying a range of interesting features. Stress-strain curves often exhibit strong work hardening followed by prominent work softening due to glide and climb processes. The critical resolved shear stress (CRSS) at a given temperature decreases dramatically, by almost 2 orders of magnitude, with increasing deviation from stoichiometry, i.e., as n increases from 1 to 3.5. The CRSS is proportional to exp (-T/T (sub 0) ) and to [V (sub c) ] (super -2) , where T is the temperature in kelvin, To?? a characteristic temperature, and [V (sub c) ] the concentration of charge-compensating cation vacancies. The Burgers vector is 1/2[110], and slip can occur on {111} and {110} planes. Slip on {111} planes is believed to occur between the Kagome cation layer and the adjacent anion layer. Slip on {110} planes is slightly easier (and has a higher T (sub 0) ), because the planes are more widely separated. The temperature dependence of the CRSS can be explained in terms of the Peierls stress for partial dislocations, either in terms of a steep and high Peierls potential or in terms of temperature and stress-dependent kink diffusion. The dependence of CRSS on [V (sub c) ] (super -2) can be explained in terms of kink nucleation at cation vacancies. JF - Journal of the American Ceramic Society AU - Mitchell, Terence E A2 - Sickafus, Kurt E. A2 - Hughes, Richard Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 3305 EP - 3316 PB - American Ceramic Society, Columbus, OH VL - 82 IS - 12 SN - 0002-7820, 0002-7820 KW - shear stress KW - spinel KW - mechanical properties KW - deformation KW - temperature KW - magnesium oxide KW - aluminum oxides KW - spinel structure KW - oxides KW - cations KW - crystal dislocations KW - high temperature KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52372475?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Ceramic+Society&rft.atitle=Dislocations+and+mechanical+properties+of+MgO-Al+%28sub+2%29+O+%28sub+3%29+spinel+single+crystals&rft.au=Mitchell%2C+Terence+E&rft.aulast=Mitchell&rft.aufirst=Terence&rft.date=1999-12-01&rft.volume=82&rft.issue=12&rft.spage=3305&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Ceramic+Society&rft.issn=00027820&rft_id=info:doi/ L2 - http://www.blackwellpublishing.com/journal.asp?ref=0002-7820&site=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 66 N1 - PubXState - OH N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aluminum oxides; cations; crystal dislocations; deformation; high temperature; magnesium oxide; mechanical properties; oxides; shear stress; spinel; spinel structure; temperature ER - TY - JOUR T1 - Stochastic analysis of immiscible two-phase flow in heterogeneous media AN - 52264982; 2001-014522 AB - We present a stochastic analysis of immiscible two-phase flow (Buckley-Leverett displacement) in heterogeneous reservoirs. Since the detailed spatial variabilities of reservoir properties such as permeability and porosity cannot be described deterministically, both permeability and porosity, or either, are treated as random space functions. In turn, water saturation and oil production rate are also random variables. The main purpose of this study is to estimate the saturation field (by its expected value) and the associated uncertainty (by its standard deviation) for Buckley-Leverett displacement in such random media. The expected value and standard deviation may be used to construct confidence intervals for the saturation field in a reservoir and to evaluate the risk associated with a project caused by the incomplete knowledge of reservoir properties. Through transforming to coordinates attached to streamlines, the evaluation of saturation statistical moments is simplified to that of travel time and transverse displacement probability density functions. The latter do not vary with the two-phase composition but entirely depend on the total velocity under some conditions. Through some one- and two-dimensional examples, we found that the well-known discontinuities existing in saturation profiles and oil production curves for homogeneous media disappear in the case of heterogeneous media. This is due to heterogeneity fingering, or the so-called "heterogeneity induced dispersion." The effect of heterogeneity on oil production is the earlier water breakthrough and later oil arrival. The oil production is expected to take longer in heterogeneous media than in homogeneous media. JF - SPE Journal AU - Zhang, Dongxiao AU - Tchelepi, Hamdi Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 380 EP - 388 PB - Society of Petroleum Engineers, Richardson, TX VL - 4 IS - 4 SN - 1086-055X, 1086-055X KW - petroleum engineering KW - two-phase models KW - Monte Carlo analysis KW - statistical analysis KW - enhanced recovery KW - oil-water interface KW - porosity KW - reservoir rocks KW - heterogeneous materials KW - stochastic processes KW - immiscibility KW - multiphase flow KW - reservoir properties KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52264982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SPE+Journal&rft.atitle=Stochastic+analysis+of+immiscible+two-phase+flow+in+heterogeneous+media&rft.au=Zhang%2C+Dongxiao%3BTchelepi%2C+Hamdi&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1999-12-01&rft.volume=4&rft.issue=4&rft.spage=380&rft.isbn=&rft.btitle=&rft.title=SPE+Journal&rft.issn=1086055X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 38 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - enhanced recovery; heterogeneous materials; immiscibility; Monte Carlo analysis; multiphase flow; oil-water interface; permeability; petroleum engineering; porosity; reservoir properties; reservoir rocks; statistical analysis; stochastic processes; two-phase models ER - TY - JOUR T1 - Porosity of the melting zone and variations in the solid mantle upwelling rate beneath Hawaii; inferences from (super 238) U- (super 230) Th- (super 226) Ra and (super 235) U- (super 231) Pa disequilibria AN - 50315905; 2000-010071 AB - Analyses are presented of U-Th isotope series ratios for samples of lavas ranging in composition from tholeiite to basanite from Kilauea, Mauna Loa, Hualalai and Haleakala. The samples are all historical flows or have been dated by radiocarbon. Major and trace element data are listed in an appendix. The (super 230) Th/ (super 238) U, (super 226) Ra/ (super 230) Th and (super 231) Pa/ (super 235) U disequilibria vary systematically with major elements and with Sm/Nd fractionation. The (super 230) Th/ (super 238) U and (super 231) Pa/ (super 235) U disequilibria can be modelled in terms of batch melting, suggesting that much of the U/Th and U/Pa disequilibria result from net U/Th and U/Pa elemental fractionations during melting. (super 226) Ra/ (super 230) Th and other evidence suggest relatively short magma storage times for all the lavas except for those from Mauna Kea which are evolved hawaiites. JF - Geochimica et Cosmochimica Acta AU - Sims, K W W AU - DePaolo, D J AU - Murrell, M T AU - Baldridge, W S AU - Goldstein, S AU - Clague, D AU - Jull, M A2 - Shimizu, Nobu Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 4119 EP - 4138 PB - Pergamon, Oxford VL - 63 IS - 23-24 SN - 0016-7037, 0016-7037 KW - Hawaii Island KW - Th-230 KW - Haleakala KW - thermal ionization mass spectra KW - mass spectra KW - Mauna Loa KW - uranium disequilibrium KW - Ra-226 KW - basalts KW - Pa-231 KW - experimental studies KW - radium KW - East Pacific Ocean Islands KW - porosity KW - Maui County Hawaii KW - solid phase KW - North Pacific KW - Oceania KW - uranium KW - basanite KW - United States KW - upwelling KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Mauna Kea KW - mantle KW - radioactive isotopes KW - melting KW - major elements KW - Hualalai KW - phase equilibria KW - protactinium KW - lithogeochemistry KW - spectra KW - trace elements KW - Kilauea KW - geochemistry KW - mantle plumes KW - alkaline earth metals KW - tholeiite KW - Hawaii County Hawaii KW - isotope ratios KW - Hawaii KW - Maui KW - lava KW - metals KW - Pacific Ocean KW - thorium KW - Polynesia KW - U-238 KW - actinides KW - U-235 KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50315905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Porosity+of+the+melting+zone+and+variations+in+the+solid+mantle+upwelling+rate+beneath+Hawaii%3B+inferences+from+%28super+238%29+U-+%28super+230%29+Th-+%28super+226%29+Ra+and+%28super+235%29+U-+%28super+231%29+Pa+disequilibria&rft.au=Sims%2C+K+W+W%3BDePaolo%2C+D+J%3BMurrell%2C+M+T%3BBaldridge%2C+W+S%3BGoldstein%2C+S%3BClague%2C+D%3BJull%2C+M&rft.aulast=Sims&rft.aufirst=K+W&rft.date=1999-12-01&rft.volume=63&rft.issue=23-24&rft.spage=4119&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2899%2900313-0 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - The chemical history of the Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2000-01-01 N1 - Number of references - 73 N1 - Document feature - illus. incl. 7 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; basalts; basanite; East Pacific Ocean Islands; experimental studies; geochemistry; Haleakala; Hawaii; Hawaii County Hawaii; Hawaii Island; Hualalai; igneous rocks; isotope ratios; isotopes; Kilauea; lava; lithogeochemistry; major elements; mantle; mantle plumes; mass spectra; Maui; Maui County Hawaii; Mauna Kea; Mauna Loa; melting; metals; North Pacific; Oceania; Pa-231; Pacific Ocean; phase equilibria; Polynesia; porosity; protactinium; Ra-226; radioactive isotopes; radium; solid phase; spectra; Th-230; thermal ionization mass spectra; tholeiite; thorium; trace elements; U-235; U-238; United States; upwelling; uranium; uranium disequilibrium; volcanic rocks DO - http://dx.doi.org/10.1016/S0016-7037(99)00313-0 ER - TY - JOUR T1 - Stochastic modeling of heterogeneous phreatic aquifers AN - 50164801; 2000-033126 AB - Phreatic flow in heterogeneous aquifers is analyzed by treating hydraulic conductivity as a random field with known statistics. A set of equations for the first and second ensemble moments of hydraulic head and phreatic surface is derived. These equations allow one to predict the behavior of phreatic aquifers, as well as to assess the uncertainty associated with such predictions. Perturbation analysis in variance of log hydraulic conductivity is employed to close the moments equations. This leads to a recursive initial boundary value problem. Copyright 1999 by the American Geophysical Union. JF - Water Resources Research AU - Tartakovsky, Daniel M Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 3941 EP - 3945 PB - American Geophysical Union, Washington, DC VL - 35 IS - 12 SN - 0043-1397, 0043-1397 KW - statistical analysis KW - mathematical models KW - preferential flow KW - simulation KW - boundary conditions KW - ground water KW - aquifers KW - water table KW - saturated zone KW - hydraulic head KW - stochastic processes KW - hydrodynamics KW - hydraulic conductivity KW - heterogeneity KW - covariance analysis KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50164801?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Stochastic+modeling+of+heterogeneous+phreatic+aquifers&rft.au=Tartakovsky%2C+Daniel+M&rft.aulast=Tartakovsky&rft.aufirst=Daniel&rft.date=1999-12-01&rft.volume=35&rft.issue=12&rft.spage=3941&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F1999WR900280 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 14 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - aquifers; boundary conditions; covariance analysis; ground water; heterogeneity; hydraulic conductivity; hydraulic head; hydrodynamics; mathematical models; preferential flow; saturated zone; simulation; statistical analysis; stochastic processes; water table DO - http://dx.doi.org/10.1029/1999WR900280 ER - TY - JOUR T1 - Will Vesuvius erupt? Three million people need to know AN - 17343329; 4629227 AB - The Bay of Naples and the adjacent Campanian Plain are rich, the seaside beautiful, and the weather mild. During the time of the Roman empire, this region was a prime location for holiday villas, and during the 18th and 19th centuries, Naples was a required destination on the "Grand Tour" for well-educated, wealthy youths. But the region has also been the site of devastating volcanic eruptions, most notably that of 79 A.D., which buried the thriving Roman town of Pompeii. Today, close to 3 million people live in the volcanic areas around Naples, 1 million of them on the slopes of Mount Vesuvius. Historic and geological records and seismic monitoring networks are now providing insights into the patterns of volcanic activity and may help mitigate the hazards of future eruptions. JF - Science (Washington) AU - Heiken, G AD - Los Alamos Natl. Lab., Los Alamos, NM 87545, USA, heiken@lanl.gov Y1 - 1999/11/26/ PY - 1999 DA - 1999 Nov 26 SP - 1685 EP - 1687 PB - American Association for the Advancement of Science VL - 286 IS - 5445 SN - 0036-8075, 0036-8075 KW - Italy KW - natural disasters KW - uncertainty KW - Risk Abstracts; Health & Safety Science Abstracts KW - Risk assessment KW - Hazards KW - Eruptions KW - Volcanoes KW - Emergency preparedness KW - Seismic activity KW - H 6000:Natural Disasters/Civil Defense/Emergency Management KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17343329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Will+Vesuvius+erupt%3F+Three+million+people+need+to+know&rft.au=Heiken%2C+G&rft.aulast=Heiken&rft.aufirst=G&rft.date=1999-11-26&rft.volume=286&rft.issue=5445&rft.spage=1685&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.286.5445.1685 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Eruptions; Risk assessment; Seismic activity; Emergency preparedness; Hazards; Volcanoes DO - http://dx.doi.org/10.1126/science.286.5445.1685 ER - TY - JOUR T1 - Modulus creep after thermal or dynamic disturbance AN - 52186806; 2001-070463 JF - Eos, Transactions, American Geophysical Union AU - TenCate, James A AU - Smith, Eric AU - Guyer, Robert A AU - Shankland, Thomas J AU - Anonymous Y1 - 1999/11/16/ PY - 1999 DA - 1999 Nov 16 SP - 1025 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - strain KW - sandstone KW - elastic constants KW - temperature KW - models KW - sedimentary rocks KW - Q KW - seismicity KW - creep KW - mathematical methods KW - thermodynamic properties KW - shear modulus KW - seismic energy KW - earthquakes KW - clastic rocks KW - Young's modulus KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52186806?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Modulus+creep+after+thermal+or+dynamic+disturbance&rft.au=TenCate%2C+James+A%3BSmith%2C+Eric%3BGuyer%2C+Robert+A%3BShankland%2C+Thomas+J%3BAnonymous&rft.aulast=TenCate&rft.aufirst=James&rft.date=1999-11-16&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1025&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - clastic rocks; creep; earthquakes; elastic constants; mathematical methods; models; Q; sandstone; sedimentary rocks; seismic energy; seismicity; shear modulus; strain; temperature; thermodynamic properties; Young's modulus ER - TY - JOUR T1 - Nanometric crystalline inclusions in diamond from Kazakhstan; evidence of the continental slab-mantle interaction AN - 51331321; 2003-004801 JF - Eos, Transactions, American Geophysical Union AU - Dobrzhinetskaya, Larissa AU - Mitchell, T AU - Dickerson, R AU - Green, Harry W AU - Anonymous Y1 - 1999/11/16/ PY - 1999 DA - 1999 Nov 16 SP - 986 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - garnet-biotite gneiss KW - oxygen KW - microstructure KW - mantle KW - continental crust KW - fugacity KW - Central Asia KW - pyroxene group KW - mineral composition KW - Commonwealth of Independent States KW - microdiamond KW - Kokchetav Kazakhstan KW - carbon KW - metamorphic rocks KW - inclusions KW - diamond KW - sediments KW - interfaces KW - oxides KW - chemical composition KW - Asia KW - biotite gneiss KW - chain silicates KW - gneisses KW - upper mantle KW - solutes KW - magnesite KW - native elements KW - felsic composition KW - boundary interactions KW - TEM data KW - depth KW - mineral inclusions KW - crystals KW - Kokchetav Massif KW - titanium KW - metals KW - slabs KW - Kazakhstan KW - orthopyroxene KW - crystal chemistry KW - carbonates KW - crust KW - ferrosilite KW - 18:Solid-earth geophysics KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51331321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Nanometric+crystalline+inclusions+in+diamond+from+Kazakhstan%3B+evidence+of+the+continental+slab-mantle+interaction&rft.au=Dobrzhinetskaya%2C+Larissa%3BMitchell%2C+T%3BDickerson%2C+R%3BGreen%2C+Harry+W%3BAnonymous&rft.aulast=Dobrzhinetskaya&rft.aufirst=Larissa&rft.date=1999-11-16&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=986&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2014-03-14 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; biotite gneiss; boundary interactions; carbon; carbonates; Central Asia; chain silicates; chemical composition; Commonwealth of Independent States; continental crust; crust; crystal chemistry; crystals; depth; diamond; felsic composition; ferrosilite; fugacity; garnet-biotite gneiss; gneisses; inclusions; interfaces; Kazakhstan; Kokchetav Kazakhstan; Kokchetav Massif; magnesite; mantle; metals; metamorphic rocks; microdiamond; microstructure; mineral composition; mineral inclusions; native elements; orthopyroxene; oxides; oxygen; pyroxene group; sediments; silicates; slabs; solutes; TEM data; titanium; upper mantle ER - TY - JOUR T1 - The application of fast multipole methods to increase the efficiency of a single-fault numerical earthquake model AN - 1793204707; 2016-045659 JF - Eos (Washington, DC) AU - Tullis, Terry E AU - Salmon, John AU - Kato, Naoyuki AU - Warren, Michael AU - Anonymous Y1 - 1999/11/16/ PY - 1999 DA - 1999 Nov 16 SP - 924 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - numerical models KW - Green function KW - Parkfield earthquake 1966 KW - earthquakes KW - faults KW - radiation damping approach KW - boundary element analysis KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793204707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos+%28Washington%2C+DC%29&rft.atitle=The+application+of+fast+multipole+methods+to+increase+the+efficiency+of+a+single-fault+numerical+earthquake+model&rft.au=Tullis%2C+Terry+E%3BSalmon%2C+John%3BKato%2C+Naoyuki%3BWarren%2C+Michael%3BAnonymous&rft.aulast=Tullis&rft.aufirst=Terry&rft.date=1999-11-16&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=924&rft.isbn=&rft.btitle=&rft.title=Eos+%28Washington%2C+DC%29&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-06-02 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - boundary element analysis; earthquakes; faults; Green function; numerical models; Parkfield earthquake 1966; radiation damping approach ER - TY - JOUR T1 - The LANL model 8823 whole-body TLD and associated dose algorithm. AN - 70833271; 10527157 AB - The Los Alamos National Laboratory Model 8823 whole-body TLD has been designed to perform accurate dose estimates for beta, photon, and neutron radiations that are encountered in pure calibration, mixed calibration, and typical field radiation conditions. The radiation energies and field types for which the Model 8823 dosimeter is capable of measuring are described. The Model 8823 dosimeter has been accredited for all performance testing categories in the Department of Energy Laboratory Accreditation Program for external dosimetry systems. The philosophy used in the design of the Model 8823 dosimeter and the associated dose algorithm is to isolate the responses due to beta, photon, and neutron radiations; obtain radiation quality information; and make functional adjustments to the elemental readings to estimate the dose equivalent at 7, 300, and 1,000 mgcm(-2), representing the required repoting quantities for shallow, lens-of-the-eye, and deep dose, respectively. JF - Health physics AU - Hoffman, J M AU - Mallett, M W AD - Los Alamos National Laboratory, Health Physics Measurements, NM 87545, USA. hoffjeff@lanl.gov Y1 - 1999/11// PY - 1999 DA - November 1999 SP - S96 EP - 103 VL - 77 IS - 5 Suppl SN - 0017-9078, 0017-9078 KW - Index Medicus KW - Neutrons KW - Equipment Design KW - Photons KW - Humans KW - Calibration KW - Guidelines as Topic KW - Beta Particles KW - Radiation Dosage KW - Thermoluminescent Dosimetry -- methods KW - Thermoluminescent Dosimetry -- instrumentation KW - Algorithms KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70833271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=The+LANL+model+8823+whole-body+TLD+and+associated+dose+algorithm.&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Yucca+Mountain+tuffs&rft.title=Yucca+Mountain+tuffs&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-11-01 N1 - Date created - 1999-11-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Infrasonic detection of a Leonid bolide; 1998 November 17 AN - 52396584; 2000-015114 AB - During the early morning hours of the night of the peak of the annual Leonid meteor shower on 1998 November 17, a bright fireball (approximately -12 to -14 visual magnitude at 100 km in the zenith) was observed over northern New Mexico with visual sightings as far away from Los Alamos as Albuquerque ( approximately 150 km to the south of Los Alamos), including direct persistent trail observations at the U.S.A.F. Starfire Optical Range (SOR), which is also near Albuqerque. This event did not produce any sonic boom reports, presumably because of its high altitude. It was also detected locally by an infrared radiometer at Sandia National Laboratory and by an intensified charge-coupled device (CCD) camera located in Placitas, New Mexico. Subsequent investigations of the data from the six infrasound arrays used by Los Alamos National Laboratory (LANL) and operated for the Department of Energy as a part of the Comprehensive Test Ban Treaty (CTBT) Research and Development program for the International Monitoring System (IMS) showed the presence of an infrasonic signal from the proper direction at the correct time for this bolide from two of our six arrays (both located in Los Alamos). The infrasound recordings (i.e., the wave amplitude and period data) indicated that an explosion occurred in the atmosphere at a source height of approximately 93.5 km (with respect to sea level) or approximately 90 km with respect to the altitude of Los Alamos, having its origins slightly to the north and west of Los Alamos. Purely geometric solutions from the ground observers reports combined with direct measurements from the CCD camera at Placitas produced a source height of 91+ or -7 km. The signal characteristics analyzed from 0.5 to 3.0 Hz include a total duration of about 3-4 s for a source directed from Los Alamos toward 353.6+ or -0.4 degrees measured from true north at a maximum elevation arrival angle of approximately 72.7 degrees . The latter was deduced on the basis of the observed signal trace velocities (for the part of the recording with the highest cross-correlation) and ranged from a constant value of about 920-1150 m/s (depending on the window length used in the analysis) for a ray trajectory along a direct refractive path between the source and the Los Alamos arrays. The dominant signal frequency at maximum amplitude at Los Alamos was approximately 0.71 Hz. These highly correlated signals had a peak to peak, maximum amplitude of approximately 2.1 microbars (0.21 Pa). Using several methods that incorporate various observed signal characteristics, total distance traveled, etc., our analysis indicates that the bolide probably had a source energy of approximately 1.14 t (TNT equivalent) or 4.77X10 (super 9) J. This is approximately 14.1Xsmaller than the source energy estimate made using the infrasonic, empirical source energy relationship for low-altitude stationary point sources developed in the 1960s by the Air Force Technical Applications Center (AFTAC), Patrick Air Force Base, Florida. This relation was originally developed, however, for much larger source energies and at much longer ranges. JF - Meteoritics & Planetary Science AU - ReVelle, Douglas O AU - Whitaker, Rodney W AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 995 EP - 1005 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 6 SN - 1086-9379, 1086-9379 KW - models KW - meteors KW - physical properties KW - kinetic energy KW - detection KW - Leonid meteor shower KW - fireballs KW - bolides KW - spectra KW - energy KW - observations KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52396584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Infrasonic+detection+of+a+Leonid+bolide%3B+1998+November+17&rft.au=ReVelle%2C+Douglas+O%3BWhitaker%2C+Rodney+W%3BAnonymous&rft.aulast=ReVelle&rft.aufirst=Douglas&rft.date=1999-11-01&rft.volume=34&rft.issue=6&rft.spage=995&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on the Leonid multi-instrument aircraft campaign N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 18 N1 - PubXState - AR N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bolides; detection; energy; fireballs; kinetic energy; Leonid meteor shower; meteors; models; observations; physical properties; spectra ER - TY - JOUR T1 - Coordinated observations of two large Leonid meteor fireballs over northern New Mexico, and computer model comparisons AN - 52396571; 2000-015115 AB - This paper describes the coordinated results of several sets of measurements of two Leonid meteor fireballs over northern New Mexico at 1:32 and 3:06 MST, respectively, on the night of 1998 November 17. The measurements included visible band photometry on both events, as well as filtered 5890 Aa all-sky images of the Na airglow. Also, for the 3:06 A.M. event, we obtained an infrasound measurement of the hydrodynamic yield. For the 1:32 A.M. event, we obtained a set of visible band charge-coupled device (CCD) camera images of the meteor train for times extending to 30 min after the initial impact. The measurement results have been combined to derive an optical efficiency for the intense early-time optical flash, and the total explosion yields and masses for both of the meteors. We have also done a set of numerical radiation, hydrodynamic, and chemistry computations to investigate the nature and distribution of the long-lasting airglow. We attribute the brightest visible airglow to atomic O 5577 Aa line emission, with additional contributions from atomic Na emission and NO (sub 2) chemiluminescence. The near-infrared atmospheric bands of molecular O (sub 2) should be very strong as well. All of the band emissions are expected to show a hollow limb-brightened structure. JF - Meteoritics & Planetary Science AU - Zinn, J AU - Wren, J AU - Whitaker, Rodney W AU - Szymanski, J AU - ReVelle, Douglas O AU - Priedhorsky, W AU - Hills, J AU - Gisler, G AU - Fletcher, S AU - Casperson, D AU - Bloch, J AU - Balsano, R AU - Armstrong, W T AU - Akerlof, C AU - Kehoe, R AU - McKay, T AU - Lee, B AU - Kelley, M C AU - Spalding, R E AU - Marshall, S AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1007 EP - 1015 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 6 SN - 1086-9379, 1086-9379 KW - United States KW - Leonid meteor shower KW - northern New Mexico KW - data processing KW - New Mexico KW - temperature KW - observations KW - measurement KW - models KW - meteors KW - photometry KW - fireballs KW - geochemistry KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52396571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Coordinated+observations+of+two+large+Leonid+meteor+fireballs+over+northern+New+Mexico%2C+and+computer+model+comparisons&rft.au=Zinn%2C+J%3BWren%2C+J%3BWhitaker%2C+Rodney+W%3BSzymanski%2C+J%3BReVelle%2C+Douglas+O%3BPriedhorsky%2C+W%3BHills%2C+J%3BGisler%2C+G%3BFletcher%2C+S%3BCasperson%2C+D%3BBloch%2C+J%3BBalsano%2C+R%3BArmstrong%2C+W+T%3BAkerlof%2C+C%3BKehoe%2C+R%3BMcKay%2C+T%3BLee%2C+B%3BKelley%2C+M+C%3BSpalding%2C+R+E%3BMarshall%2C+S%3BAnonymous&rft.aulast=Zinn&rft.aufirst=J&rft.date=1999-11-01&rft.volume=34&rft.issue=6&rft.spage=1007&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on the Leonid multi-instrument aircraft campaign N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 20 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - data processing; fireballs; geochemistry; Leonid meteor shower; measurement; meteors; models; New Mexico; northern New Mexico; observations; photometry; temperature; United States ER - TY - JOUR T1 - Jet fuel chemical composition, weathering, and identification as a contaminant at a remediation site, determined by Fourier transform ion cyclotron resonance mass spectrometry AN - 52389559; 2000-019030 AB - We have characterized a jet fuel (JP-8) contaminated site and compared its chemical constituents to a set of unweathered JP-4, JP-5 and JP-8 weathered standards by use of an all-glass heated inlet system (AGHIS) coupled to a home-built 6.0 T Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer. From as little as a 1 mu L septum injection of JP-8, JP-5, or JP-4 into the AGHIS, we obtained high-resolution mass spectra containing approximately 400 peaks, 50< or =m/z< or =280, with as many as 4 peaks at the same nominal mass. A molecular formula (elemental composition) could be assigned to each peak, solely on the basis of accurate mass measurement to + or -0.8 ppm. With increased "weathering" (i.e., evaporation), JP-8 exhibited a significantly increased number and relative abundance of higher-mass (200< or =m/z< or =250) species, in accord with a previously observed increase in gas retention times with increased weathering. By extraction and subsequent FT-ICR mass analysis of JP-8 contaminated soil, we were able to identify and correlate many species to those present in the unweathered/weathered standards, as well as identify a small number of new species attributed to degradation products from prolonged weathering and matrix components arising from species extracted from the soil. JF - Analytical Chemistry (Washington, DC) AU - Rodgers, Ryan P AU - Blumer, Erin N AU - Freitas, Michael A AU - Marshall, Alan G Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 5171 EP - 5176 PB - American Chemical Society, Washington, DC VL - 71 IS - 22 SN - 0003-2700, 0003-2700 KW - aquifer vulnerability KW - degradation KW - contaminant plumes KW - mass spectra KW - drinking water KW - remediation KW - infrared spectra KW - ground water KW - FTIR spectra KW - infrared spectroscopy KW - solvents KW - retention KW - spectra KW - Fourier transform infrared spectroscopy KW - soils KW - leaking underground storage tanks KW - pollutants KW - pollution KW - migration of elements KW - petroleum products KW - bioremediation KW - weathering KW - aquifers KW - organic compounds KW - hydrocarbons KW - risk assessment KW - spectroscopy KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52389559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%2C+DC%29&rft.atitle=Jet+fuel+chemical+composition%2C+weathering%2C+and+identification+as+a+contaminant+at+a+remediation+site%2C+determined+by+Fourier+transform+ion+cyclotron+resonance+mass+spectrometry&rft.au=Rodgers%2C+Ryan+P%3BBlumer%2C+Erin+N%3BFreitas%2C+Michael+A%3BMarshall%2C+Alan+G&rft.aulast=Rodgers&rft.aufirst=Ryan&rft.date=1999-11-01&rft.volume=71&rft.issue=22&rft.spage=5171&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%2C+DC%29&rft.issn=00032700&rft_id=info:doi/ L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/38876 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 59 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; bioremediation; contaminant plumes; degradation; drinking water; Fourier transform infrared spectroscopy; FTIR spectra; ground water; hydrocarbons; infrared spectra; infrared spectroscopy; leaking underground storage tanks; mass spectra; migration of elements; organic compounds; petroleum products; pollutants; pollution; remediation; retention; risk assessment; soils; solvents; spectra; spectroscopy; weathering ER - TY - JOUR T1 - The Tuff of San Felipe; an extensive middle Miocene pyroclastic flow deposit in Baja California, Mexico AN - 52355563; 2000-039409 AB - We document the existence of a widespread Miocene ash-flow tuff sheet in northeastern Baja California, Mexico. The Tuff of San Felipe (new name) was erupted from a vent east of the Sierra San Felipe of NE Baja California at ca. 12.6 Ma. This is the only widespread middle Miocene pyroclastic flow deposit identified in northeastern Baja California. Its distinctive age and widespread distribution make it an important marker horizon for structural reconstruction of this part of the Gulf Extensional Province, which is on the Pacific plate. The vent position, near the modern Gulf of California coast, allows the possibility that exposures of the Tuff of San Felipe may be preserved east of the gulf on the North America plate in Sonora, yielding a tie point for the past relative position of the two plates. This paper summarizes all known information including petrography, geochemistry, geochronology, paleomagnetics, geographic distribution, and field appearance of this important tuff. It is a densely welded, crystal-rich, lithic-lapilli pyroclastic flow deposit, with 5-15% alkali feldspar, and can be 180 m thick in some locations near the vent. The Tuff of San Felipe is >40 m thick up to 40 km SW of the vent and > 10 m thick at least 25 km NNW of the vent. A minimum volume estimate for the deposit is 54 km (super 3) . Some recent (super 40) Ar/ (super 39) Ar age determinations suggest that the tuff is about 12.6 Ma in age. In all locations studied, the Tuff of San Felipe has a unique, low-inclination, reversed magnetization, which may record a field transition or a geomagnetic excursion within reversed polarity subchron C5Ar.2r (12.401 to 12.678 Ma). This low-inclination magnetization, as well as the mineralogy and age, is key to correlating the tuff across the region, because deposits are highly disrupted by subsequent normal faulting and outcrops are sparse and discontinuous away from the vent. The documentation of these characteristics is important because the Tuff of San Felipe is a key structural marker for the subsequent development of the Pacific-North America plate boundary in the Gulf of California, and it will be important to identify this tuff in outcrops elsewhere on the Baja California Peninsula and on the North America plate in Sonora. JF - Journal of Volcanology and Geothermal Research AU - Stock, Joann M AU - Lewis, Claudia J AU - Nagy, Elizabeth A A2 - Verma, Surendra P. Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 53 EP - 74 PB - Elsevier, Amsterdam VL - 93 IS - 1-2 SN - 0377-0273, 0377-0273 KW - silicates KW - relative age KW - Tuff of San Felipe KW - volcanic rocks KW - Northeast Pacific KW - igneous rocks KW - San Felipe Formation KW - Gulf of California KW - Cenozoic KW - mineral composition KW - Baja California KW - alkali feldspar KW - dates KW - volcanism KW - absolute age KW - framework silicates KW - tuff KW - chemical composition KW - geochemistry KW - stratigraphy KW - East Pacific KW - Ar/Ar KW - ignimbrite KW - paleomagnetism KW - Miocene KW - emplacement KW - pyroclastics KW - lithofacies KW - Tertiary KW - Mexico KW - North Pacific KW - Neogene KW - Pacific Ocean KW - petrography KW - feldspar group KW - Sierra San Fermin KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52355563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=The+Tuff+of+San+Felipe%3B+an+extensive+middle+Miocene+pyroclastic+flow+deposit+in+Baja+California%2C+Mexico&rft.au=Stock%2C+Joann+M%3BLewis%2C+Claudia+J%3BNagy%2C+Elizabeth+A&rft.aulast=Stock&rft.aufirst=Joann&rft.date=1999-11-01&rft.volume=93&rft.issue=1-2&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900079-7 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 7 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - absolute age; alkali feldspar; Ar/Ar; Baja California; Cenozoic; chemical composition; dates; East Pacific; emplacement; feldspar group; framework silicates; geochemistry; Gulf of California; igneous rocks; ignimbrite; lithofacies; Mexico; mineral composition; Miocene; Neogene; North Pacific; Northeast Pacific; Pacific Ocean; paleomagnetism; petrography; pyroclastics; relative age; San Felipe Formation; Sierra San Fermin; silicates; stratigraphy; Tertiary; tuff; Tuff of San Felipe; volcanic rocks; volcanism DO - http://dx.doi.org/10.1016/S0377-0273(99)00079-7 ER - TY - JOUR T1 - Thermochemistry of refractory mineral, glass, and ceramic materials which host lanthanides and actinides AN - 52206365; 2001-055139 JF - Eos, Transactions, American Geophysical Union AU - Navrotsky, Alexandra AU - Putnam, Robert L AU - Helean, Katheryn B AU - Ebbinghaus, Bartley B AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1204 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - halides KW - zirconolite KW - fluorides KW - isotopes KW - stability KW - brannerite KW - radioactive waste KW - laboratory studies KW - radioactive isotopes KW - pyrochlore KW - enthalpy KW - orthosilicates KW - oxides KW - thermochemical properties KW - rare earths KW - thermodynamic properties KW - ceramic materials KW - glass materials KW - geochemistry KW - disposal barriers KW - zircon group KW - experimental studies KW - tantalates KW - zircon KW - phosphates KW - nesosilicates KW - niobotantalates KW - metals KW - niobates KW - monazite KW - waste disposal KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52206365?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Thermochemistry+of+refractory+mineral%2C+glass%2C+and+ceramic+materials+which+host+lanthanides+and+actinides&rft.au=Navrotsky%2C+Alexandra%3BPutnam%2C+Robert+L%3BHelean%2C+Katheryn+B%3BEbbinghaus%2C+Bartley+B%3BAnonymous&rft.aulast=Navrotsky&rft.aufirst=Alexandra&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1204&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; brannerite; ceramic materials; disposal barriers; enthalpy; experimental studies; fluorides; geochemistry; glass materials; halides; isotopes; laboratory studies; metals; monazite; nesosilicates; niobates; niobotantalates; orthosilicates; oxides; phosphates; pyrochlore; radioactive isotopes; radioactive waste; rare earths; silicates; stability; tantalates; thermochemical properties; thermodynamic properties; waste disposal; zircon; zircon group; zirconolite ER - TY - JOUR T1 - Aqueous geochemistry of uranium in upper Los Alamos Canyon, Los Alamos National Laboratory, New Mexico AN - 52206240; 2001-055143 JF - Eos, Transactions, American Geophysical Union AU - Longmire, Patrick AU - Broxton, David E AU - Counce, Dale AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1204 EP - 1205 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - isotopes KW - complexing KW - rivers and streams KW - data processing KW - unsaturated zone KW - observation wells KW - tritium KW - New Mexico KW - Los Alamos County New Mexico KW - MINTEQA2 KW - ground water KW - saturated zone KW - radioactive isotopes KW - perched aquifers KW - digital simulation KW - discharge KW - geochemistry KW - pH KW - Rio Grande KW - hydrology KW - diffusion KW - numerical models KW - uranyl ion KW - solutes KW - adsorption KW - Los Alamos National Laboratory KW - bicarbonate ion KW - hydrochemistry KW - aquifers KW - dissolved materials KW - metals KW - hydrogen KW - uranium KW - Los Alamos Canyon KW - aquatic environment KW - actinides KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52206240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Gable%2C+C+W%3BTrease%2C+H+E%3BCherry%2C+T+A&rft.aulast=Gable&rft.aufirst=C&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Geological+applications+of+automatic+grid+generation+tools+for+finite+elements+applied+to+porous+flow+modeling&rft.title=Geological+applications+of+automatic+grid+generation+tools+for+finite+elements+applied+to+porous+flow+modeling&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; adsorption; aquatic environment; aquifers; bicarbonate ion; complexing; data processing; diffusion; digital simulation; discharge; dissolved materials; geochemistry; ground water; hydrochemistry; hydrogen; hydrology; isotopes; Los Alamos Canyon; Los Alamos County New Mexico; Los Alamos National Laboratory; metals; MINTEQA2; New Mexico; numerical models; observation wells; perched aquifers; pH; radioactive isotopes; Rio Grande; rivers and streams; saturated zone; solutes; tritium; United States; unsaturated zone; uranium; uranyl ion ER - TY - JOUR T1 - Neptunium and plutonium environmental speciation AN - 52205596; 2001-055148 JF - Eos, Transactions, American Geophysical Union AU - Runde, Wolfgang AU - Efurd, Wes AU - Kaszuba, John AU - Neu, Mary P AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1206 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - neptunium KW - plutonium KW - coordination KW - radioactive waste KW - ground water KW - valency KW - spectra KW - thermodynamic properties KW - geochemistry KW - Eh KW - liquid phase KW - experimental studies KW - colloidal materials KW - oxidation KW - pollution KW - Rocky Flats Plant KW - solubility KW - hydrochemistry KW - X-ray spectra KW - aquifers KW - solid phase KW - metals KW - waste disposal KW - Colorado KW - actinides KW - chemical fractionation KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52205596?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Neptunium+and+plutonium+environmental+speciation&rft.au=Runde%2C+Wolfgang%3BEfurd%2C+Wes%3BKaszuba%2C+John%3BNeu%2C+Mary+P%3BAnonymous&rft.aulast=Runde&rft.aufirst=Wolfgang&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1206&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; aquifers; chemical fractionation; colloidal materials; Colorado; coordination; Eh; experimental studies; geochemistry; ground water; hydrochemistry; liquid phase; metals; neptunium; oxidation; plutonium; pollution; radioactive waste; Rocky Flats Plant; solid phase; solubility; spectra; thermodynamic properties; United States; valency; waste disposal; X-ray spectra ER - TY - JOUR T1 - Environmental actinide mobility; plutonium and uranium interactions with exopolysaccharides and siderophores of aerobic soil microbes AN - 52205311; 2001-055140 JF - Eos, Transactions, American Geophysical Union AU - Neu, Mary P AU - Vanderberg, Laura A AU - Ruggiero, Christy E AU - Matonic, John H AU - He, Li-Ming AU - Fairlee, Jason R AU - Cox, Matthew M AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1204 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - plutonium KW - polysaccharides KW - organo-metallics KW - radioactive waste KW - aerobic environment KW - organic compounds KW - chemical reactions KW - metals KW - carbohydrates KW - uranium KW - waste disposal KW - polymers KW - mobility KW - geochemistry KW - actinides KW - underground disposal KW - microorganisms KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52205311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Environmental+actinide+mobility%3B+plutonium+and+uranium+interactions+with+exopolysaccharides+and+siderophores+of+aerobic+soil+microbes&rft.au=Neu%2C+Mary+P%3BVanderberg%2C+Laura+A%3BRuggiero%2C+Christy+E%3BMatonic%2C+John+H%3BHe%2C+Li-Ming%3BFairlee%2C+Jason+R%3BCox%2C+Matthew+M%3BAnonymous&rft.aulast=Neu&rft.aufirst=Mary&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1204&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; aerobic environment; carbohydrates; chemical reactions; geochemistry; metals; microorganisms; mobility; organic compounds; organo-metallics; plutonium; polymers; polysaccharides; radioactive waste; soils; underground disposal; uranium; waste disposal ER - TY - JOUR T1 - U-series natural analog studies at Pena Blanca, Mexico; how mobile is uranium? AN - 52205186; 2001-055146 JF - Eos, Transactions, American Geophysical Union AU - Murrell, Michael T AU - Paviet-Hartmann, Patricia AU - Goldstein, Steven J AU - Nunn, Andrew J AU - Roback, Robert C AU - Dixon, Paul A AU - Simmons, Ardyth AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1205 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - fractured materials KW - Th-230 KW - isotopes KW - Chihuahua Mexico KW - Th/U KW - uranium disequilibrium KW - radioactive waste KW - Cenozoic KW - Ra-226 KW - fractures KW - radioactive isotopes KW - dates KW - protactinium KW - absolute age KW - Sierra Pena Blanca KW - mobility KW - alkaline earth metals KW - Quaternary KW - radium KW - isochrons KW - uranium ores KW - Mexico KW - metals KW - natural analogs KW - U-234 KW - metal ores KW - thorium KW - Pleistocene KW - uranium KW - Pena Blanca Deposit KW - waste disposal KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52205186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Farrar%2C+C%3BBaker%2C+W%3BFales%2C+J%3BShevitz%2C+D&rft.aulast=Farrar&rft.aufirst=C&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Active+vibration+control+of+civil+structures&rft.title=Active+vibration+control+of+civil+structures&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; actinides; alkaline earth metals; Cenozoic; Chihuahua Mexico; dates; fractured materials; fractures; isochrons; isotopes; metal ores; metals; Mexico; mobility; natural analogs; Pena Blanca Deposit; Pleistocene; protactinium; Quaternary; Ra-226; radioactive isotopes; radioactive waste; radium; Sierra Pena Blanca; Th-230; Th/U; thorium; U-234; uranium; uranium disequilibrium; uranium ores; waste disposal ER - TY - JOUR T1 - Sorption of plutonium-239 and americium-243 onto colloids of hematite, montmorillonite, and silica in groundwater AN - 52203440; 2001-061409 JF - Eos, Transactions, American Geophysical Union AU - Lu, Ningping AU - Parker, Gary R AU - Leonard, Pat A AU - Conca, Jim AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1185 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - sorption KW - isotopes KW - plutonium KW - Pu-239 KW - remediation KW - ground water KW - laboratory studies KW - mitigation KW - radioactive isotopes KW - hematite KW - silica KW - oxides KW - Am-243 KW - montmorillonite KW - experimental studies KW - colloidal materials KW - pollutants KW - pollution KW - clay minerals KW - metals KW - americium KW - sheet silicates KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52203440?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Sorption+of+plutonium-239+and+americium-243+onto+colloids+of+hematite%2C+montmorillonite%2C+and+silica+in+groundwater&rft.au=Lu%2C+Ningping%3BParker%2C+Gary+R%3BLeonard%2C+Pat+A%3BConca%2C+Jim%3BAnonymous&rft.aulast=Lu&rft.aufirst=Ningping&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1185&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; Am-243; americium; clay minerals; colloidal materials; experimental studies; ground water; hematite; isotopes; laboratory studies; metals; mitigation; montmorillonite; oxides; plutonium; pollutants; pollution; Pu-239; radioactive isotopes; remediation; sheet silicates; silica; silicates; sorption ER - TY - JOUR T1 - The effect of dust loading on the detection of radioactive aerosol particles with continuous air monitors; initial lab results AN - 52202221; 2001-061412 JF - Eos, Transactions, American Geophysical Union AU - Schery, Stephen D AU - Huang, Suilou AU - Alcantara, Raul AU - Wasiolek, Piotr T AU - Rodgers, John C AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1186 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - experimental studies KW - isotopes KW - Eddy County New Mexico KW - clastic sediments KW - New Mexico KW - radioactive waste KW - laboratory studies KW - radioactive isotopes KW - dust KW - sediments KW - aerosols KW - air KW - Waste Isolation Pilot Plant KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52202221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+effect+of+dust+loading+on+the+detection+of+radioactive+aerosol+particles+with+continuous+air+monitors%3B+initial+lab+results&rft.au=Schery%2C+Stephen+D%3BHuang%2C+Suilou%3BAlcantara%2C+Raul%3BWasiolek%2C+Piotr+T%3BRodgers%2C+John+C%3BAnonymous&rft.aulast=Schery&rft.aufirst=Stephen&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1186&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aerosols; air; clastic sediments; dust; Eddy County New Mexico; experimental studies; isotopes; laboratory studies; New Mexico; radioactive isotopes; radioactive waste; sediments; United States; waste disposal; Waste Isolation Pilot Plant ER - TY - JOUR T1 - Plutonium and uranium interactions with siderophores of aerobic soil microbes AN - 52202024; 2001-061411 JF - Eos, Transactions, American Geophysical Union AU - Neu, Mary P AU - Ruggiero, Christy E AU - Matonic, John M AU - Vanderberg, Laura A AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1186 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - isotopes KW - pollutants KW - biochemistry KW - pollution KW - siderophile elements KW - bioremediation KW - remediation KW - radioactive waste KW - mitigation KW - radioactive isotopes KW - metals KW - waste disposal KW - actinides KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52202024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Plutonium+and+uranium+interactions+with+siderophores+of+aerobic+soil+microbes&rft.au=Neu%2C+Mary+P%3BRuggiero%2C+Christy+E%3BMatonic%2C+John+M%3BVanderberg%2C+Laura+A%3BAnonymous&rft.aulast=Neu&rft.aufirst=Mary&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1186&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; biochemistry; bioremediation; isotopes; metals; microorganisms; mitigation; pollutants; pollution; radioactive isotopes; radioactive waste; remediation; siderophile elements; soils; waste disposal ER - TY - JOUR T1 - Isotopics and composition as tracers of plutonium contamination in Colorado AN - 52201199; 2001-061415 JF - Eos, Transactions, American Geophysical Union AU - Janecky, David R AU - Efurd, D Wes AU - Kaszuba, John P AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1186 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - soils KW - Jefferson County Colorado KW - isotopes KW - pollutants KW - plutonium KW - Pu-239 KW - pollution KW - Boulder County Colorado KW - Rocky Flats Plant KW - radioactive waste KW - radioactive isotopes KW - transport KW - radioactive tracers KW - metals KW - waste disposal KW - Colorado KW - actinides KW - Pu-240 KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52201199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Isotopics+and+composition+as+tracers+of+plutonium+contamination+in+Colorado&rft.au=Janecky%2C+David+R%3BEfurd%2C+D+Wes%3BKaszuba%2C+John+P%3BAnonymous&rft.aulast=Janecky&rft.aufirst=David&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1186&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; Boulder County Colorado; Colorado; isotopes; Jefferson County Colorado; metals; plutonium; pollutants; pollution; Pu-239; Pu-240; radioactive isotopes; radioactive tracers; radioactive waste; Rocky Flats Plant; soils; transport; United States; waste disposal ER - TY - JOUR T1 - Abrupt physical and chemical changes during 1992 to 1999; Anderson Springs, SE Geysers geothermal field, California AN - 52195207; 2001-065429 JF - Eos, Transactions, American Geophysical Union AU - Goff, Fraser AU - Janik, Cathy J AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1161 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - thermal waters KW - temperature KW - ground water KW - geothermal energy KW - California KW - geothermal fields KW - physical properties KW - The Geysers KW - Anderson Springs KW - chemical properties KW - springs KW - hot springs KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52195207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Abrupt+physical+and+chemical+changes+during+1992+to+1999%3B+Anderson+Springs%2C+SE+Geysers+geothermal+field%2C+California&rft.au=Goff%2C+Fraser%3BJanik%2C+Cathy+J%3BAnonymous&rft.aulast=Goff&rft.aufirst=Fraser&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1161&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Anderson Springs; California; chemical properties; geothermal energy; geothermal fields; ground water; hot springs; physical properties; springs; temperature; The Geysers; thermal waters; United States ER - TY - JOUR T1 - A parallel implementation of Lagrangian tracers in TERRA AN - 52170351; 2001-079935 JF - Eos, Transactions, American Geophysical Union AU - Stegman, Dave R AU - Richards, Mark A AU - Baumgardner, John R AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 950 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - pressure KW - numerical models KW - density KW - three-dimensional models KW - Lagrangian tracers KW - statistical analysis KW - mantle KW - TERRA model KW - reference frames KW - advection KW - temperature KW - geometry KW - models KW - finite element analysis KW - errors KW - viscosity KW - heat flow KW - tracers KW - velocity KW - heat transfer KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52170351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+parallel+implementation+of+Lagrangian+tracers+in+TERRA&rft.au=Stegman%2C+Dave+R%3BRichards%2C+Mark+A%3BBaumgardner%2C+John+R%3BAnonymous&rft.aulast=Stegman&rft.aufirst=Dave&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=950&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - advection; density; errors; finite element analysis; geometry; heat flow; heat transfer; Lagrangian tracers; mantle; models; numerical models; pressure; reference frames; statistical analysis; temperature; TERRA model; three-dimensional models; tracers; velocity; viscosity ER - TY - JOUR T1 - Difussion of water in rock at low saturations AN - 52138150; 2002-021353 JF - Eos, Transactions, American Geophysical Union AU - Gomez, Patricia AU - McCall, Katherine R AU - Eckert, Juergen AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 964 EP - 965 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - volcanic rocks KW - igneous rocks KW - unsaturated zone KW - sandstone KW - ground water KW - laboratory studies KW - sedimentary rocks KW - transport KW - tuff KW - Yucca Mountain KW - Nevada KW - P-T conditions KW - experimental studies KW - Calico Hills Tuff KW - Paleozoic KW - Berea Sandstone KW - pollution KW - Nye County Nevada KW - porosity KW - pyroclastics KW - clastic rocks KW - pore water KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52138150?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Difussion+of+water+in+rock+at+low+saturations&rft.au=Gomez%2C+Patricia%3BMcCall%2C+Katherine+R%3BEckert%2C+Juergen%3BAnonymous&rft.aulast=Gomez&rft.aufirst=Patricia&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=964&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Berea Sandstone; Calico Hills Tuff; clastic rocks; experimental studies; ground water; igneous rocks; laboratory studies; Nevada; Nye County Nevada; P-T conditions; Paleozoic; permeability; pollution; pore water; porosity; pyroclastics; sandstone; sedimentary rocks; transport; tuff; United States; unsaturated zone; volcanic rocks; Yucca Mountain ER - TY - JOUR T1 - Effects of oceanic tectonic plates on mantle temperature and heat flow in numerical convection models AN - 52134321; 2002-021375 JF - Eos, Transactions, American Geophysical Union AU - Lowman, Julian P AU - King, Scott D AU - Gable, Carl W AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 968 EP - 969 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - oceanic crust KW - numerical models KW - thermal conductivity KW - lithosphere KW - oceanic lithosphere KW - mantle KW - convection KW - temperature KW - plate tectonics KW - heat flow KW - mathematical methods KW - Pacific Plate KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52134321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Reservoir+fracture+mapping+using+microearthquakes%3B+Austin+Chalk%2C+Giddings+Field%2C+TX+and+76+Field%2C+Clinton+Co.%2C+Kentucky&rft.au=Phillips%2C+W+S%3BRutledge%2C+J+T%3BFairbanks%2C+T+D%3BGardner%2C+T+L%3BMiller%2C+M+E%3BSchuessler%2C+B+K%3BAnonymous&rft.aulast=Phillips&rft.aufirst=W&rft.date=1996-01-01&rft.volume=66&rft.issue=&rft.spage=1931&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; crust; heat flow; lithosphere; mantle; mathematical methods; numerical models; oceanic crust; oceanic lithosphere; Pacific Plate; plate tectonics; temperature; thermal conductivity ER - TY - JOUR T1 - The effectiveness of finite yield stress in obtaining platelike surface velocities AN - 52134250; 2002-021340 JF - Eos, Transactions, American Geophysical Union AU - Richards, Mark A AU - Yang, Woo-Sun AU - Baumgardner, John R AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 962 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - finite element analysis KW - plate tectonics KW - viscosity KW - rheology KW - lithosphere KW - stress KW - statistical analysis KW - velocity KW - oceanic lithosphere KW - convection KW - two-dimensional models KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52134250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+effectiveness+of+finite+yield+stress+in+obtaining+platelike+surface+velocities&rft.au=Richards%2C+Mark+A%3BYang%2C+Woo-Sun%3BBaumgardner%2C+John+R%3BAnonymous&rft.aulast=Richards&rft.aufirst=Mark&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=962&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; finite element analysis; lithosphere; oceanic lithosphere; plate tectonics; rheology; statistical analysis; stress; two-dimensional models; velocity; viscosity ER - TY - JOUR T1 - Seismic characterization of tunnel boring machine activity near Boston, MA, USA AN - 52085585; 2002-059293 JF - Eos, Transactions, American Geophysical Union AU - Greaves, Robert J AU - Roberts, Peter M AU - Doll, Charles G AU - Steck, Lee K AU - Fehler, Michael C AU - Toksoz, M Nafi AU - Turpening, Roger M AU - Hooper, Heather J AU - Edie, Margaret S AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 643 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Suffolk County Massachusetts KW - igneous rocks KW - granites KW - aqueducts KW - seismic sources KW - seismic response KW - Boston Massachusetts KW - rock mechanics KW - noise KW - geometry KW - plutonic rocks KW - ground truth KW - seismicity KW - Massachusetts KW - tunnel boring machines KW - tunnels KW - metamorphic rocks KW - broad-band spectra KW - air pressure KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52085585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Seismic+characterization+of+tunnel+boring+machine+activity+near+Boston%2C+MA%2C+USA&rft.au=Greaves%2C+Robert+J%3BRoberts%2C+Peter+M%3BDoll%2C+Charles+G%3BSteck%2C+Lee+K%3BFehler%2C+Michael+C%3BToksoz%2C+M+Nafi%3BTurpening%2C+Roger+M%3BHooper%2C+Heather+J%3BEdie%2C+Margaret+S%3BAnonymous&rft.aulast=Greaves&rft.aufirst=Robert&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=643&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - air pressure; aqueducts; Boston Massachusetts; broad-band spectra; geometry; granites; ground truth; igneous rocks; Massachusetts; metamorphic rocks; noise; plutonic rocks; rock mechanics; seismic response; seismic sources; seismicity; Suffolk County Massachusetts; tunnel boring machines; tunnels; United States ER - TY - JOUR T1 - Architecture of a transfer fault zone in the northern Rio Grande Rift, New Mexico, from SAGE geophysical results AN - 52080702; 2002-059284 JF - Eos, Transactions, American Geophysical Union AU - Ferguson, J F AU - Braile, L W AU - Baldridge, W S AU - Richards, T AU - Davidson, M AU - Jiracek, G R AU - Biehler, S AU - Gilpin, B AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 642 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - geophysical surveys KW - New Mexico KW - strike-slip faults KW - displacements KW - refraction methods KW - magnetotelluric methods KW - Rio Grande Rift KW - Cenozoic KW - wide-angle methods KW - gravity methods KW - normal faults KW - transfer faults KW - Vibroseis KW - faults KW - Espanola Basin KW - systems KW - North America KW - seismic profiles KW - geophysical methods KW - reflection methods KW - Summer of Applied Geophysical Experience KW - seismic methods KW - grabens KW - Tertiary KW - SAGE KW - Neogene KW - surveys KW - Pliocene KW - Embudo fault zone KW - geophysical profiles KW - seismic networks KW - Velarde Graben KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52080702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Architecture+of+a+transfer+fault+zone+in+the+northern+Rio+Grande+Rift%2C+New+Mexico%2C+from+SAGE+geophysical+results&rft.au=Ferguson%2C+J+F%3BBraile%2C+L+W%3BBaldridge%2C+W+S%3BRichards%2C+T%3BDavidson%2C+M%3BJiracek%2C+G+R%3BBiehler%2C+S%3BGilpin%2C+B%3BAnonymous&rft.aulast=Ferguson&rft.aufirst=J&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=642&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Cenozoic; displacements; Embudo fault zone; Espanola Basin; faults; geophysical methods; geophysical profiles; geophysical surveys; grabens; gravity methods; magnetotelluric methods; Neogene; New Mexico; normal faults; North America; Pliocene; reflection methods; refraction methods; Rio Grande Rift; SAGE; seismic methods; seismic networks; seismic profiles; strike-slip faults; Summer of Applied Geophysical Experience; surveys; systems; Tertiary; transfer faults; United States; Velarde Graben; Vibroseis; wide-angle methods ER - TY - JOUR T1 - A path specific crustal study in Central Asia from group velocity inversions and full waveform modeling AN - 52079295; 2002-059363 JF - Eos, Transactions, American Geophysical Union AU - Whitted, Craig A AU - Taylor, Steven R AU - Velasco, Aaron A AU - Hartse, Hans E AU - Zandt, George AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 656 EP - 657 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - Lop Nor Test Site KW - Far East KW - Pn-waves KW - Tien Shan KW - Xinjiang China KW - elastic waves KW - waveforms KW - seismic sources KW - Central Asia KW - foreshocks KW - surface waves KW - Commonwealth of Independent States KW - middle crust KW - thickness KW - propagation KW - nuclear explosions KW - Asia KW - China KW - body waves KW - Junggar Basin KW - guided waves KW - explosions KW - phase match filters KW - inverse problem KW - group velocity KW - Rayleigh waves KW - Pg-waves KW - velocity structure KW - Kazakhstan KW - seismic waves KW - Lop Nor earthquake 1999 KW - earthquakes KW - S-waves KW - filters KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52079295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+path+specific+crustal+study+in+Central+Asia+from+group+velocity+inversions+and+full+waveform+modeling&rft.au=Whitted%2C+Craig+A%3BTaylor%2C+Steven+R%3BVelasco%2C+Aaron+A%3BHartse%2C+Hans+E%3BZandt%2C+George%3BAnonymous&rft.aulast=Whitted&rft.aufirst=Craig&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=656&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; body waves; Central Asia; China; Commonwealth of Independent States; crust; earthquakes; elastic waves; explosions; Far East; filters; foreshocks; group velocity; guided waves; inverse problem; Junggar Basin; Kazakhstan; Lop Nor earthquake 1999; Lop Nor Test Site; middle crust; nuclear explosions; Pg-waves; phase match filters; Pn-waves; propagation; Rayleigh waves; S-waves; seismic sources; seismic waves; surface waves; thickness; Tien Shan; velocity structure; waveforms; Xinjiang China ER - TY - JOUR T1 - Ground truth aftershock relocations in Tibet using results from InSAR AN - 52077028; 2002-059359 JF - Eos, Transactions, American Geophysical Union AU - Velasco, Aaron A AU - Steck, Lee K AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 656 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - monitoring KW - Far East KW - radar methods KW - elastic waves KW - deformation KW - interferometry KW - aftershocks KW - rupture KW - ground truth KW - seismicity KW - SAR KW - great earthquakes KW - Xizang China KW - regional KW - traveltime KW - velocity KW - epicenters KW - InSAR KW - Asia KW - earthquakes KW - Tibet earthquake 1997 KW - China KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52077028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Ground+truth+aftershock+relocations+in+Tibet+using+results+from+InSAR&rft.au=Velasco%2C+Aaron+A%3BSteck%2C+Lee+K%3BAnonymous&rft.aulast=Velasco&rft.aufirst=Aaron&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=656&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aftershocks; Asia; China; Comprehensive Test Ban Treaty; deformation; earthquakes; elastic waves; epicenters; Far East; great earthquakes; ground truth; InSAR; interferometry; monitoring; radar methods; regional; rupture; SAR; seismicity; Tibet earthquake 1997; traveltime; velocity; Xizang China ER - TY - JOUR T1 - One-way acoustic-wave modeling using the Born and quasi-Born approximations of the Lippman-Schwinger equation AN - 52045488; 2003-000989 JF - Eos, Transactions, American Geophysical Union AU - Huang, Lian-Jie AU - Fehler, Michael C AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 693 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - models KW - methods KW - acoustical methods KW - three-dimensional models KW - geophysical methods KW - propagation KW - Lippmann-Schwinger equation KW - Born approximation KW - wave dispersion KW - wave fields KW - acoustical waves KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52045488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=One-way+acoustic-wave+modeling+using+the+Born+and+quasi-Born+approximations+of+the+Lippman-Schwinger+equation&rft.au=Huang%2C+Lian-Jie%3BFehler%2C+Michael+C%3BAnonymous&rft.aulast=Huang&rft.aufirst=James&rft.date=1996-01-01&rft.volume=66&rft.issue=&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical methods; acoustical waves; Born approximation; geophysical methods; Lippmann-Schwinger equation; methods; models; propagation; three-dimensional models; wave dispersion; wave fields ER - TY - JOUR T1 - Modeling of seismic radiation from cylindrical explosive sources AN - 52039629; 2003-004591 JF - Eos, Transactions, American Geophysical Union AU - Yang, Xiaoning AU - Gaffney, Edward S AU - Carney, Theodore C AU - Bradley, Christopher R AU - Swift, Robert P AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 678 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - mining KW - explosions KW - surface mining KW - numerical analysis KW - finite difference analysis KW - stress KW - statistical analysis KW - geophysical methods KW - optimization KW - elastic waves KW - seismic sources KW - seismic methods KW - exploration KW - mathematical methods KW - velocity KW - seismic waves KW - wave dispersion KW - seismic energy KW - earthquakes KW - field studies KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52039629?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Modeling+of+seismic+radiation+from+cylindrical+explosive+sources&rft.au=Yang%2C+Xiaoning%3BGaffney%2C+Edward+S%3BCarney%2C+Theodore+C%3BBradley%2C+Christopher+R%3BSwift%2C+Robert+P%3BAnonymous&rft.aulast=Yang&rft.aufirst=Xiaoning&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=678&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - earthquakes; elastic waves; exploration; explosions; field studies; finite difference analysis; geophysical methods; mathematical methods; mining; numerical analysis; optimization; seismic energy; seismic methods; seismic sources; seismic waves; statistical analysis; stress; surface mining; velocity; wave dispersion ER - TY - JOUR T1 - High modified Mercalli intensities from small shallow earthquakes, northern Rio Grande Rift, New Mexico USA AN - 52036818; 2003-004680 JF - Eos, Transactions, American Geophysical Union AU - Gardner, Jamie N AU - House, Leigh S AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 710 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - North America KW - shallow-focus earthquakes KW - seismic intensity KW - modified Mercalli scale KW - New Mexico KW - Los Alamos County New Mexico KW - seismic response KW - Rio Grande Rift KW - neotectonics KW - ground motion KW - Pajarito Fault KW - tectonics KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52036818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=High+modified+Mercalli+intensities+from+small+shallow+earthquakes%2C+northern+Rio+Grande+Rift%2C+New+Mexico+USA&rft.au=Gardner%2C+Jamie+N%3BHouse%2C+Leigh+S%3BAnonymous&rft.aulast=Gardner&rft.aufirst=Jamie&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=710&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - earthquakes; ground motion; Los Alamos County New Mexico; modified Mercalli scale; neotectonics; New Mexico; North America; Pajarito Fault; Rio Grande Rift; seismic intensity; seismic response; shallow-focus earthquakes; tectonics; United States ER - TY - JOUR T1 - Age constraints on spatially controlled lavas from the Axial Valley of the Mid-Atlantic Ridge, MARK area AN - 51886203; 2004-018728 JF - Eos, Transactions, American Geophysical Union AU - Sturm, Marnie E AU - Goldstein, Steven J AU - Klein, Emily M AU - Karson, Jeffrey A AU - Murrell, Michael T AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1093 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - volcanic rocks KW - glasses KW - isotopes KW - igneous rocks KW - mass spectra KW - Th-230/Ra-226 KW - Th/U KW - Mid-Atlantic Ridge KW - radioactive isotopes KW - dates KW - protactinium KW - absolute age KW - spectra KW - geochemistry KW - alkaline earth metals KW - U-235/Pa-231 KW - radium KW - isotope ratios KW - Axial Valley KW - U-238/Th-230 KW - Kane fracture zone KW - lava KW - metals KW - eruptions KW - volcanoes KW - thorium KW - uranium KW - North Atlantic KW - sulfides KW - actinides KW - accuracy KW - Snakepit hydrothermal field KW - Atlantic Ocean KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51886203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Age+constraints+on+spatially+controlled+lavas+from+the+Axial+Valley+of+the+Mid-Atlantic+Ridge%2C+MARK+area&rft.au=Sturm%2C+Marnie+E%3BGoldstein%2C+Steven+J%3BKlein%2C+Emily+M%3BKarson%2C+Jeffrey+A%3BMurrell%2C+Michael+T%3BAnonymous&rft.aulast=Sturm&rft.aufirst=Marnie&rft.date=1999-11-01&rft.volume=6&rft.issue=2&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Remediation+%28New+York%2C+NY%29&rft.issn=10515658&rft_id=info:doi/10.1002%2Frem.3440060208 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; actinides; alkaline earth metals; Atlantic Ocean; Axial Valley; dates; eruptions; geochemistry; glasses; igneous rocks; isotope ratios; isotopes; Kane fracture zone; lava; mass spectra; metals; Mid-Atlantic Ridge; North Atlantic; protactinium; radioactive isotopes; radium; Snakepit hydrothermal field; spectra; sulfides; Th-230/Ra-226; Th/U; thorium; U-235/Pa-231; U-238/Th-230; uranium; volcanic rocks; volcanoes ER - TY - JOUR T1 - Joint inversion of waveforms and spectra for earthquake faulting parameters AN - 51884234; 2004-018616 JF - Eos, Transactions, American Geophysical Union AU - Ammon, Charles J AU - Randall, George E AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 661 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - seismograms KW - focal mechanism KW - geologic hazards KW - magnitude KW - joints KW - spectral analysis KW - inverse problem KW - waveforms KW - teleseismic signals KW - models KW - fractures KW - velocity structure KW - risk assessment KW - earthquakes KW - faults KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51884234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Joint+inversion+of+waveforms+and+spectra+for+earthquake+faulting+parameters&rft.au=Ammon%2C+Charles+J%3BRandall%2C+George+E%3BAnonymous&rft.aulast=Ammon&rft.aufirst=Charles&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=661&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - crust; earthquakes; faults; focal mechanism; fractures; geologic hazards; inverse problem; joints; magnitude; models; risk assessment; seismograms; spectral analysis; teleseismic signals; velocity structure; waveforms ER - TY - JOUR T1 - Radionuclide concentrations in soils and vegetation at low-level radioactive waste disposal Area G during the 1998 growing season (with a cumulative summary of 3H and 239Pu over time) AN - 51775348; 2005-000844 JF - LA - Los Alamos Scientific Laboratory AU - Naranjo, L Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 93 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - soils KW - concentration KW - isotopes KW - New Mexico KW - Los Alamos County New Mexico KW - vegetation KW - Los Alamos National Laboratory KW - biota KW - radioactive waste KW - bioaccumulation KW - radioactive isotopes KW - nuclear facilities KW - waste disposal KW - energy KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51775348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Naranjo%2C+L&rft.aulast=Naranjo&rft.aufirst=L&rft.date=1999-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Radionuclide+concentrations+in+soils+and+vegetation+at+low-level+radioactive+waste+disposal+Area+G+during+the+1998+growing+season+%28with+a+cumulative+summary+of+3H+and+239Pu+over+time%29&rft.title=Radionuclide+concentrations+in+soils+and+vegetation+at+low-level+radioactive+waste+disposal+Area+G+during+the+1998+growing+season+%28with+a+cumulative+summary+of+3H+and+239Pu+over+time%29&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2005-01-01 N1 - Availability - National Technical Information Service, (703)685-6900, order number DE00751946NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - bioaccumulation; biota; concentration; energy; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; nuclear facilities; radioactive isotopes; radioactive waste; soils; United States; vegetation; waste disposal ER - TY - JOUR T1 - Modeling dynamic recrystallization of olivine aggregates deformed in simple shear AN - 50156757; 2000-038835 AB - Experiments by Zhang and Karato [1995] have shown that in simple shear dislocation creep of olivine at low strains, an asymmetric texture develops with a [100] maximum rotated away from the shear direction against the sense of shear. At large strain where recrystallization is pervasive, the texture pattern is symmetrical, and [100] is parallel to the shear direction. The deformation texture can be adequately modeled with a viscoplastic self-consistent polycrystal plasticity theory. This model can be expanded to include recrystallization, treating the process as a balance of boundary migration (growth of relatively underformed grains at the expense of highly deformed grains) and nucleation (strain-free nuclei replacing highly deformed grains). If nucleation dominates over growth, the model predicts a change from the asymmetric to the symmetric texture as recrystallization proceeds and stabilization in the "easy slip" orientation for the dominant (010)[100] slip system. This result is in accordance with the experiments and suggests that the most highly deformed orientation components dominate the recrystallization texture. The empirical model will be useful to simulate more adequately the development of anisotropy in the mantle where olivine is largely recrystallized. Copyright 1999 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Wenk, H R AU - Tome, C N Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 25 EP - 25,527 PB - American Geophysical Union, Washington, DC VL - 104 IS - B11 SN - 0148-0227, 0148-0227 KW - silicates KW - aggregate KW - olivine group KW - crystal growth KW - deformation KW - recrystallization KW - nesosilicates KW - models KW - physical properties KW - nucleation KW - creep KW - olivine KW - shear KW - orthosilicates KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50156757?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Modeling+dynamic+recrystallization+of+olivine+aggregates+deformed+in+simple+shear&rft.au=Wenk%2C+H+R%3BTome%2C+C+N&rft.aulast=Wenk&rft.aufirst=H&rft.date=1999-11-01&rft.volume=104&rft.issue=B11&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F1999JB900261 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 71 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aggregate; creep; crystal growth; deformation; models; nesosilicates; nucleation; olivine; olivine group; orthosilicates; physical properties; recrystallization; shear; silicates DO - http://dx.doi.org/10.1029/1999JB900261 ER - TY - JOUR T1 - Highly sensitive biological and chemical sensors based on reversible fluorescence quenching in a conjugated polymer AN - 17410254; 4635278 AB - The fluorescence of a polyanionic conjugated polymer can be quenched by extremely low concentrations of cationic electron acceptors in aqueous solutions. We report a greater than million-fold amplification of the sensitivity to fluorescence quenching compared with corresponding "molecular excited states." Using a combination of steady-state and ultrafast spectroscopy, we have established that the dramatic quenching results from weak complex formation [polymer super((-))/quencher super((+))], followed by ultrafast electron transfer from excitations on the entire polymer chain to the quencher, with a time constant of 650 fs. Because of the weak complex formation, the quenching can be selectively reversed by using a quencher-recognition diad. We have constructed such a diad and demonstrate that the fluorescence is fully recovered on binding between the recognition site and a specific analyte protein. In both solutions and thin films, this reversible fluorescence quenching provides the basis for a new class of highly sensitive biological and chemical sensors. JF - Proceedings of the National Academy of Sciences, USA AU - Chen, L AU - McBranch, D W AU - Wang, H AU - Helgeson, R AU - Wudl, F AU - Whitten, D G AD - Center for Material Science, and Chemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545 USA, whitten@lanl.gov Y1 - 1999/10/26/ PY - 1999 DA - 1999 Oct 26 SP - 12287 EP - 12292 VL - 96 IS - 22 SN - 0027-8424, 0027-8424 KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Biosensors KW - Fluorescence KW - Sensors KW - Spectroscopy KW - Polymers KW - W2 32250:Others KW - W 30965:Miscellaneous, Reviews KW - W3 33250:Methods: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17410254?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.atitle=Highly+sensitive+biological+and+chemical+sensors+based+on+reversible+fluorescence+quenching+in+a+conjugated+polymer&rft.au=Chen%2C+L%3BMcBranch%2C+D+W%3BWang%2C+H%3BHelgeson%2C+R%3BWudl%2C+F%3BWhitten%2C+D+G&rft.aulast=Chen&rft.aufirst=L&rft.date=1999-10-26&rft.volume=96&rft.issue=22&rft.spage=12287&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.96.22.12287 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sensors; Biosensors; Polymers; Fluorescence; Spectroscopy DO - http://dx.doi.org/10.1073/pnas.96.22.12287 ER - TY - JOUR T1 - In vivo screening of haloalkane dehalogenase mutants. AN - 69306328; 10579523 AB - Haloalkane dehalogenase (Dh1A) from Xanthobacter autotrophicus GJ10 catalyzes the dehalogenation of short chain primary alkyl halides. Due to the high Km and low turnover, wild type Dh1A is not optimal for applications in bioremediation. We have developed an in vivo screen, based on a colorimetric pH indicator, to identify Dh1A mutant with improved catalytic activity. After screening 50,000 colonies, we identified a Dh1A mutant with a lower pH optimum. Sequence analysis of the mutant revealed a single substitution, alanine 149 to threonine, which is located close to the active site of Dh1A. Replacement of alanine 149 via site-directed mutagenesis with threonine, serine or cysteine retained the mutant phenotype. Other substitutions at position 149 show little or no activity. JF - Bioorganic & medicinal chemistry AU - Chang, C H AU - Schindler, J F AU - Unkefer, C J AU - Vanderberg, L A AU - Brainard, J R AU - Terwilliger, T C AD - Structural Biology Group, Los Alamos National Laboratory, NM 87545, USA. Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 2175 EP - 2181 VL - 7 IS - 10 SN - 0968-0896, 0968-0896 KW - Ethylene Dichlorides KW - 0 KW - Recombinant Proteins KW - ethylene dichloride KW - 55163IJI47 KW - Hydrolases KW - EC 3.- KW - haloalkane dehalogenase KW - EC 3.8.1.5 KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Gene Expression Regulation, Bacterial KW - Ethylene Dichlorides -- metabolism KW - Reproducibility of Results KW - Recombinant Proteins -- metabolism KW - Kinetics KW - Escherichia coli -- genetics KW - Recombinant Proteins -- genetics KW - Mutagenesis KW - Gene Library KW - Hydrolases -- metabolism KW - Protein Engineering -- methods KW - Hydrolases -- genetics KW - Mutation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69306328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioorganic+%26+medicinal+chemistry&rft.atitle=In+vivo+screening+of+haloalkane+dehalogenase+mutants.&rft.au=Chang%2C+C+H%3BSchindler%2C+J+F%3BUnkefer%2C+C+J%3BVanderberg%2C+L+A%3BBrainard%2C+J+R%3BTerwilliger%2C+T+C&rft.aulast=Chang&rft.aufirst=C&rft.date=1999-10-01&rft.volume=7&rft.issue=10&rft.spage=2175&rft.isbn=&rft.btitle=&rft.title=Bioorganic+%26+medicinal+chemistry&rft.issn=09680896&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-12-23 N1 - Date created - 1999-12-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Extended local Rytov Fourier migration method AN - 52417873; 2000-002221 AB - We develop a novel depth-migration method termed the extended local Rytov Fourier (ELRF) migration method. It is based on the scalar wave equation and a local application of the Rytov approximation within each extrapolation interval. Wavefields are Fourier transformed back and forth between the frequency-space and frequency-wavenumber domains during wavefield extrapolation. The lateral slowness variations are taken into account in the frequency-space domain. The method is efficient due to the use of a fast Fourier transform algorithm. Under the small angle approximation, the ELRF method leads to the split-step Fourier (SSF) method that is unconditionally stable. The ELRF method and the extended local Born Fourier (ELBF) method that we previously developed can handle wider propagation angles than the SSF method only account for the phase and amplitude changes due to the lateral variations of slowness, whereas the SSF method only accounts for the phase changes. The stability of the ELRF method is controlled more easily than that of the ELBF method. JF - Geophysics AU - Huang, Lian-Jie AU - Fehler, Michael C AU - Roberts, Peter M AU - Burch, Charles C Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 1535 EP - 1545 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 64 IS - 5 SN - 0016-8033, 0016-8033 KW - extended local Rykov Four methodier KW - Fourier analysis KW - geophysical methods KW - data processing KW - velocity KW - equations KW - seismic migration KW - depth KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52417873?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Extended+local+Rytov+Fourier+migration+method&rft.au=Huang%2C+Lian-Jie%3BFehler%2C+Michael+C%3BRoberts%2C+Peter+M%3BBurch%2C+Charles+C&rft.aulast=Huang&rft.aufirst=Lian-Jie&rft.date=1999-10-01&rft.volume=64&rft.issue=5&rft.spage=1535&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.1444657 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 44 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - data processing; depth; equations; extended local Rykov Four methodier; Fourier analysis; geophysical methods; seismic methods; seismic migration; velocity DO - http://dx.doi.org/10.1190/1.1444657 ER - TY - JOUR T1 - Effects of shallow basaltic intrusion into pyroclastic deposits, Grants Ridge, New Mexico, USA AN - 52414355; 2000-003081 AB - A localized aureole up to 10 m wide developed around a 150-m-wide, 2.6 Ma basaltic plug at Grants Ridge, New Mexico. The plug intruded into nonwelded, pumice-rich compositionally homogenous tuff and volcaniclastic sediments of similar age (3.3 Ma). Color variation (pinkish to orange), strong local contact welding, brecciation, partial melting, and stoping characterize the host tock within the contact zone. Despite the high-temperature basaltic intrusion, there is no indication of extensive fluid-driven convective heat transfer and pervasive hydrothermal circulation and alteration of the country rock. The proportion of volcanic glass, loss of ignition (LOI), fluorine, iron, and some trace and rare earth element contents in the host rocks are somewhat depleted at the contact of the intrusion. Conversely, the degree of devitrification and the potassium content are higher along the contact. Vapor-phase expulsion of elemental species as complexes of fluoride, chloride, hydroxide, sulfide, and carbon dioxide may have been responsible for the minor depletion of the elements during the devitrification of silicic glass at near-solidus temperature related to the basaltic intrusion. The results of finite-difference numerical modeling of the intrusion as a dry, conduction-dominated system agree well with geochemical and mineralogical data. Contact welding of the host rocks apparently occurred at temperatures >700 degrees C under a density-driven lateral load of approximately 1 MPa, corresponding to the observed depth below the former ground surface of approximately 100 m. Other physical changes in the first 10 m of host rock, represented by partial devitrification and color changes, apparently occurred at temperatures of 500-600 degrees C, which probably persisted for up to 55 years after the emplacement of the basaltic plug. Devitrification is generally enhanced by the presence of aqueous fluids; however, the abundance of volcanic glass within a short distance ( approximately 10 m) from the plug is consistent with our inference that the plug intruded into a dry (unsaturated) environment. JF - Journal of Volcanology and Geothermal Research AU - WoldeGabriel, Giday AU - Keating, Gordon N AU - Valentine, Greg A Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 389 EP - 411 PB - Elsevier, Amsterdam VL - 92 IS - 3-4 SN - 0377-0273, 0377-0273 KW - United States KW - processes KW - volcanic rocks KW - pressure KW - X-ray diffraction data KW - Grants Ridge KW - igneous rocks KW - magmatism KW - New Mexico KW - temperature KW - pyroclastics KW - intrusions KW - major elements KW - Mount Taylor volcanic field KW - magmas KW - pumice KW - basalts KW - Cibola County New Mexico KW - tuff KW - trace elements KW - geochemistry KW - high temperature KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52414355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Effects+of+shallow+basaltic+intrusion+into+pyroclastic+deposits%2C+Grants+Ridge%2C+New+Mexico%2C+USA&rft.au=WoldeGabriel%2C+Giday%3BKeating%2C+Gordon+N%3BValentine%2C+Greg+A&rft.aulast=WoldeGabriel&rft.aufirst=Giday&rft.date=1999-10-01&rft.volume=92&rft.issue=3-4&rft.spage=389&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900087-6 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 6 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - basalts; Cibola County New Mexico; geochemistry; Grants Ridge; high temperature; igneous rocks; intrusions; magmas; magmatism; major elements; Mount Taylor volcanic field; New Mexico; pressure; processes; pumice; pyroclastics; temperature; trace elements; tuff; United States; volcanic rocks; X-ray diffraction data DO - http://dx.doi.org/10.1016/S0377-0273(99)00087-6 ER - TY - JOUR T1 - Spectroscopic investigation of the formation of PuO (sub 2) Cl (super +) and PuO (sub 2) Cl (sub 2) in NaCl solutions and application for natural brine solutions AN - 52413946; 2000-003131 AB - Spectrophotometric and thermodynamic data are provided for the chloro complexes of plutonyl(VI) formed in solutions of 0.1-5 M NaCl and 0.1 M HClO (sub 4) ; the specific ion-interaction theory is used to estimate the stability constants at zero ionic strength, the ion-interaction parameters for this system, and data for the analogous U(VI) system are compared. Of the results, it is shown that Pu(VI) forms monovalent and neutral chloro complexes in brines representative of the aquifers in salt formations. JF - Geochimica et Cosmochimica Acta AU - Runde, W AU - Reilly, S D AU - Neu, M P A2 - Stipp, Susan L. S. A2 - Brady, Patrick V. A2 - Ragnarsdottir, K. Vala A2 - Charlet, Laurent Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 3443 EP - 3449 PB - Pergamon, Oxford VL - 63 IS - 19-20 SN - 0016-7037, 0016-7037 KW - chlorine KW - sodium chloride KW - experimental studies KW - plutonium KW - oxidation KW - complexing KW - halogens KW - aqueous solutions KW - salt water KW - atomic absorption spectra KW - X-ray spectra KW - laboratory studies KW - chemical reactions KW - chloride ion KW - metals KW - brines KW - spectra KW - thermodynamic properties KW - geochemistry KW - actinides KW - Eh KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52413946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Spectroscopic+investigation+of+the+formation+of+PuO+%28sub+2%29+Cl+%28super+%2B%29+and+PuO+%28sub+2%29+Cl+%28sub+2%29+in+NaCl+solutions+and+application+for+natural+brine+solutions&rft.au=Runde%2C+W%3BReilly%2C+S+D%3BNeu%2C+M+P&rft.aulast=Runde&rft.aufirst=W&rft.date=1999-10-01&rft.volume=38&rft.issue=1&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2000-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aqueous solutions; atomic absorption spectra; brines; chemical reactions; chloride ion; chlorine; complexing; Eh; experimental studies; geochemistry; halogens; laboratory studies; metals; oxidation; plutonium; salt water; sodium chloride; spectra; thermodynamic properties; X-ray spectra DO - http://dx.doi.org/10.1016/S0016-7037(99)00275-6 ER - TY - JOUR T1 - Anisotropy, lacunarity, and upscaled conductivity and its autocovariance in multiscale random fields with truncated power variograms AN - 52410300; 2000-006819 JF - Water Resources Research AU - Di Federico, Vittorio AU - Neuman, Shlomo P AU - Tartakovsky, Daniel M Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 2891 EP - 2908 PB - American Geophysical Union, Washington, DC VL - 35 IS - 10 SN - 0043-1397, 0043-1397 KW - variance analysis KW - statistical analysis KW - equations KW - fluid dynamics KW - ground water KW - models KW - spatial variations KW - variograms KW - transport KW - lacunarity KW - hydraulic conductivity KW - permeability KW - anisotropy KW - covariance analysis KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52410300?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Anisotropy%2C+lacunarity%2C+and+upscaled+conductivity+and+its+autocovariance+in+multiscale+random+fields+with+truncated+power+variograms&rft.au=Di+Federico%2C+Vittorio%3BNeuman%2C+Shlomo+P%3BTartakovsky%2C+Daniel+M&rft.aulast=Di+Federico&rft.aufirst=Vittorio&rft.date=1999-10-01&rft.volume=35&rft.issue=10&rft.spage=2891&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 39 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - anisotropy; covariance analysis; equations; fluid dynamics; ground water; hydraulic conductivity; lacunarity; models; permeability; spatial variations; statistical analysis; transport; variance analysis; variograms ER - TY - JOUR T1 - The role of the Earth's mantle in controlling the frequency of geomagnetic reversals AN - 52409036; 2000-007067 AB - Three-dimensional computer simulations are presented of the Earth's geodynamo, which are designed to study the effects of a non-uniform pattern of heat flux over the core-mantle boundary (CMB). The simulations show how the thermal structure of the lowermost mantle might affect convection and magnetic field generation in the fluid core. The results indicate correlations among the frequency of geomagnetic reversals, their duration, the magnetic field intensity and the secular variation, and that variations in the heat flux at the CMB are smaller than previously thought. Seismic velocity anomalies in the lowermost mantle may have a compositional rather than thermal origin. JF - Nature (London) AU - Glatzmaier, Gary A AU - Coe, Robert S AU - Hongre, Lionel AU - Roberts, Paul H Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 885 EP - 890 PB - Macmillan Journals, London VL - 401 IS - 6756 SN - 0028-0836, 0028-0836 KW - tomography KW - magnetohydrodynamics KW - three-dimensional models KW - pole positions KW - dynamos KW - mantle KW - paleomagnetism KW - mathematical models KW - convection KW - simulation KW - core-mantle boundary KW - magnetic field KW - boundary conditions KW - outer core KW - lower mantle KW - geodynamics KW - reversals KW - heat flow KW - core KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52409036?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=The+role+of+the+Earth%27s+mantle+in+controlling+the+frequency+of+geomagnetic+reversals&rft.au=Glatzmaier%2C+Gary+A%3BCoe%2C+Robert+S%3BHongre%2C+Lionel%3BRoberts%2C+Paul+H&rft.aulast=Glatzmaier&rft.aufirst=Gary&rft.date=1999-10-01&rft.volume=401&rft.issue=6756&rft.spage=885&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F44776 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2000-01-01 N1 - Number of references - 50 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boundary conditions; convection; core; core-mantle boundary; dynamos; geodynamics; heat flow; lower mantle; magnetic field; magnetohydrodynamics; mantle; mathematical models; outer core; paleomagnetism; pole positions; reversals; simulation; three-dimensional models; tomography DO - http://dx.doi.org/10.1038/44776 ER - TY - JOUR T1 - Hydraulics and well testing of engineered geothermal reservoirs AN - 52008892; 2003-028426 JF - Geothermics AU - Murphy, Hugh AU - Brown, Donald W AU - Jung, Reinhard AU - Matsunaga, Isao AU - Parker, Roger H A2 - Abe, Hiroyuki A2 - Niitsuma, Hiroaki A2 - Baria, Roy Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 491 EP - 506 PB - Pergamon Press, Oxford-New York VL - 28 IS - 4-5 SN - 0375-6505, 0375-6505 KW - methods KW - hot wet rocks KW - hydraulics KW - development KW - well-logging KW - hot dry rocks KW - research KW - geothermal energy KW - geothermal reservoirs KW - fluid injection KW - testing KW - reservoir properties KW - review KW - impedance KW - 30:Engineering geology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52008892?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=Hydraulics+and+well+testing+of+engineered+geothermal+reservoirs&rft.au=Murphy%2C+Hugh%3BBrown%2C+Donald+W%3BJung%2C+Reinhard%3BMatsunaga%2C+Isao%3BParker%2C+Roger+H&rft.aulast=Murphy&rft.aufirst=Hugh&rft.date=1999-10-01&rft.volume=28&rft.issue=4-5&rft.spage=491&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 36 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - development; fluid injection; geothermal energy; geothermal reservoirs; hot dry rocks; hot wet rocks; hydraulics; impedance; methods; research; reservoir properties; review; testing; well-logging ER - TY - JOUR T1 - Fluid circulation and heat extraction from engineered geothermal reservoirs AN - 52007584; 2003-028430 JF - Geothermics AU - Brown, Donald W AU - DuTeaux, Robert AU - Kruger, Paul AU - Swenson, Daniel AU - Yamaguchi, Tsutomu A2 - Abe, Hiroyuki A2 - Niitsuma, Hiroaki A2 - Baria, Roy Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 553 EP - 572 PB - Pergamon Press, Oxford-New York VL - 28 IS - 4-5 SN - 0375-6505, 0375-6505 KW - United States KW - hot wet rocks KW - hydraulics KW - injection KW - Sandoval County New Mexico KW - New Mexico KW - hot dry rocks KW - production KW - geothermal energy KW - geothermal fields KW - geothermal reservoirs KW - heat flow KW - Fenton Hill KW - 30:Engineering geology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52007584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=Fluid+circulation+and+heat+extraction+from+engineered+geothermal+reservoirs&rft.au=Brown%2C+Donald+W%3BDuTeaux%2C+Robert%3BKruger%2C+Paul%3BSwenson%2C+Daniel%3BYamaguchi%2C+Tsutomu&rft.aulast=Brown&rft.aufirst=Donald&rft.date=1999-10-01&rft.volume=28&rft.issue=4-5&rft.spage=553&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - Fenton Hill; geothermal energy; geothermal fields; geothermal reservoirs; heat flow; hot dry rocks; hot wet rocks; hydraulics; injection; New Mexico; production; Sandoval County New Mexico; United States ER - TY - JOUR T1 - Current status of seismic and borehole measurements for HDR/HWR development AN - 52005638; 2003-028425 JF - Geothermics AU - Niitsuma, Hiroaki AU - Fehler, Michael C AU - Jones, Robert AU - Wilson, Stephen AU - Albright, James AU - Green, Andrew AU - Baria, Roy AU - Hayashi, Kazuo AU - Kaieda, Hideshi AU - Tezuka, Kazuhiko AU - Jupe, Andy AU - Wallroth, Thomas AU - Cornet, Francois H AU - Asanuma, Hiroshi AU - Moriya, Hirokazu AU - Nagano, Koji AU - Phillips, W Scott AU - Rutledge, James AU - House, Leigh AU - Beauce, Alain AU - Alde, Doug AU - Aster, Richard A2 - Abe, Hiroyuki A2 - Niitsuma, Hiroaki A2 - Baria, Roy Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 475 EP - 490 PB - Pergamon Press, Oxford-New York VL - 28 IS - 4-5 SN - 0375-6505, 0375-6505 KW - passive methods KW - hot wet rocks KW - technology KW - monitoring KW - site exploration KW - well-logging KW - geophysical methods KW - characterization KW - current research KW - hot dry rocks KW - active methods KW - seismic methods KW - measurement KW - geothermal energy KW - geothermal reservoirs KW - boreholes KW - reservoir properties KW - 30:Engineering geology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52005638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=Current+status+of+seismic+and+borehole+measurements+for+HDR%2FHWR+development&rft.au=Niitsuma%2C+Hiroaki%3BFehler%2C+Michael+C%3BJones%2C+Robert%3BWilson%2C+Stephen%3BAlbright%2C+James%3BGreen%2C+Andrew%3BBaria%2C+Roy%3BHayashi%2C+Kazuo%3BKaieda%2C+Hideshi%3BTezuka%2C+Kazuhiko%3BJupe%2C+Andy%3BWallroth%2C+Thomas%3BCornet%2C+Francois+H%3BAsanuma%2C+Hiroshi%3BMoriya%2C+Hirokazu%3BNagano%2C+Koji%3BPhillips%2C+W+Scott%3BRutledge%2C+James%3BHouse%2C+Leigh%3BBeauce%2C+Alain%3BAlde%2C+Doug%3BAster%2C+Richard&rft.aulast=Niitsuma&rft.aufirst=Hiroaki&rft.date=1999-10-01&rft.volume=28&rft.issue=4-5&rft.spage=475&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 79 N1 - Last updated - 2012-06-07 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - active methods; boreholes; characterization; current research; geophysical methods; geothermal energy; geothermal reservoirs; hot dry rocks; hot wet rocks; measurement; monitoring; passive methods; reservoir properties; seismic methods; site exploration; technology; well-logging ER - TY - JOUR T1 - Present status and remaining problems of HDR/HWR system design AN - 52005279; 2003-028431 JF - Geothermics AU - Abe, Hiroyuki AU - Duchane, David V AU - Parker, Roger H AU - Kuriyagawa, Michio A2 - Abe, Hiroyuki A2 - Niitsuma, Hiroaki A2 - Baria, Roy Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 573 EP - 590 PB - Pergamon Press, Oxford-New York VL - 28 IS - 4-5 SN - 0375-6505, 0375-6505 KW - water KW - hot wet rocks KW - technology KW - hydraulics KW - well stimulation KW - characterization KW - hot dry rocks KW - production KW - geothermal energy KW - geothermal systems KW - review KW - design KW - 30:Engineering geology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52005279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Cosmic-ray+neutrons+at+ground+level%3B+temporal+and+geodetic+variations&rft.au=O%27Brien%2C+Keran&rft.aulast=O%27Brien&rft.aufirst=Keran&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=165&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 13 N1 - Last updated - 2012-06-07 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - characterization; design; geothermal energy; geothermal systems; hot dry rocks; hot wet rocks; hydraulics; production; review; technology; water; well stimulation ER - TY - JOUR T1 - Scientific progress on the Fenton Hill HDR project since 1983 AN - 52004997; 2003-028432 JF - Geothermics AU - Brown, Donald W AU - Duchane, David V A2 - Abe, Hiroyuki A2 - Niitsuma, Hiroaki A2 - Baria, Roy Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 591 EP - 601 PB - Pergamon Press, Oxford-New York VL - 28 IS - 4-5 SN - 0375-6505, 0375-6505 KW - United States KW - programs KW - experimental studies KW - technology KW - hydraulics KW - Sandoval County New Mexico KW - New Mexico KW - hot dry rocks KW - research KW - geothermal energy KW - geothermal reservoirs KW - Fenton Hill KW - reservoir properties KW - 30:Engineering geology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52004997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=Scientific+progress+on+the+Fenton+Hill+HDR+project+since+1983&rft.au=Brown%2C+Donald+W%3BDuchane%2C+David+V&rft.aulast=Brown&rft.aufirst=Donald&rft.date=1999-10-01&rft.volume=28&rft.issue=4-5&rft.spage=591&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 9 N1 - Last updated - 2012-06-07 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - experimental studies; Fenton Hill; geothermal energy; geothermal reservoirs; hot dry rocks; hydraulics; New Mexico; programs; research; reservoir properties; Sandoval County New Mexico; technology; United States ER - TY - JOUR T1 - Sequence and Organization of pXO1, the Large Bacillus anthracis Plasmid Harboring the Anthrax Toxin Genes AN - 17404436; 4626940 AB - The Bacillus anthracis Sterne plasmid pXO1 was sequenced by random, "shotgun" cloning. A circular sequence of 181,654 bp was generated. One hundred forty-three open reading frames (ORFs) were predicted using GeneMark and GeneMark.hmm, comprising only 61% (110,817 bp) of the pXO1 DNA sequence. The overall guanine-plus-cytosine content of the plasmid is 32.5%. The most recognizable feature of the plasmid is a "pathogenicity island," defined by a 44.8-kb region that is bordered by inverted IS1627 elements at each end. This region contains the three toxin genes (cya, lef, and pagA), regulatory elements controlling the toxin genes, three germination response genes, and 19 additional ORFs. Nearly 70% of the ORFs on pXO1 do not have significant similarity to sequences available in open databases. Absent from the pXO1 sequence are homologs to genes that are typically required to drive theta replication and to maintain stability of large plasmids in Bacillus spp. Among the ORFs with a high degree of similarity to known sequences are a collection of putative transposases, resolvases, and integrases, suggesting an evolution involving lateral movement of DNA among species. Among the remaining ORFs, there are three sequences that may encode enzymes responsible for the synthesis of a polysaccharide capsule usually associated with serotype-specific virulent streptococci. JF - Journal of Bacteriology AU - Okinaka, R T AU - Cloud, K AU - Hampton, O AU - Hoffmaster, A R AU - Hill, K K AU - Keim, P AU - Koehler, T M AU - Lamke, G AU - Kumano, S AU - Mahillon, J AU - Manter, D AU - Martinez, Y AU - Ricke, D AU - Svensson, R AU - Jackson, P J AD - Life Sciences Division, Los Alamos National Laboratory, M888, Los Alamos, NM 87545, okinaka@telomere.lanl.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 6509 EP - 6515 VL - 181 IS - 20 SN - 0021-9193, 0021-9193 KW - nucleotide sequence KW - cloning KW - anthrax lethal toxin KW - cya gene KW - insertion sequence IS1627 KW - lef gene KW - pagA gene KW - plasmid pXO1 KW - transposase KW - Microbiology Abstracts B: Bacteriology KW - Anthrax KW - Bacillus anthracis KW - Integrase KW - Resolvase KW - J 02760:Plasmids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17404436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Sequence+and+Organization+of+pXO1%2C+the+Large+Bacillus+anthracis+Plasmid+Harboring+the+Anthrax+Toxin+Genes&rft.au=Okinaka%2C+R+T%3BCloud%2C+K%3BHampton%2C+O%3BHoffmaster%2C+A+R%3BHill%2C+K+K%3BKeim%2C+P%3BKoehler%2C+T+M%3BLamke%2C+G%3BKumano%2C+S%3BMahillon%2C+J%3BManter%2C+D%3BMartinez%2C+Y%3BRicke%2C+D%3BSvensson%2C+R%3BJackson%2C+P+J&rft.aulast=Okinaka&rft.aufirst=R&rft.date=1999-10-01&rft.volume=181&rft.issue=20&rft.spage=6509&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacillus anthracis; Anthrax; Resolvase; Integrase ER - TY - JOUR T1 - Interrelationships between plant functional types and soil moisture heterogeneity for semiarid landscapes within the grassland/forest continuum: a unified conceptual model AN - 17400546; 4623717 AB - In semiarid landscapes, the ratio of herbaceous to woody plant biomass is a major determinant of ecosystem properties. This ratio depends to a large extent on the amount and spatial distribution of soil moisture that is available to plants, and these variables, in turn, are determined primarily by climate and land use. Current conceptual models for determining the ratio of herbaceous to woody plant biomass in semiarid plant communities are based either on differences in soil moisture with depth (vertical heterogeneity) from one site to another (Walter's two-layer model) or on differences in soil moisture between canopy and intercanopy patches at the same site (horizontal heterogeneity) that result from disturbances associated with land use. We developed a model that unifies these two perspectives by relaxing two assumptions of Walter's two-layer model. First, our model recognizes that soil moisture varies horizontally between canopy and intercanopy patches, not only due to land-use disturbance, a general assumption of the Schlesinger et al. model, but also due to the physical nature of the canopy itself. Second, while retaining the general assumption of Walter that woody plants obtain moisture from deeper soil layers than do herbaceous plants, our model recognizes the existence of two types of woody plants: those that extract a substantial proportion of their moisture from deeper layers and those that extract mainly from shallower layers. By modifying the two-layer hypothesis to include four soil compartments and distinguishing between shallow- and deeper-rooted woody species, our model integrates three key concepts in semiarid ecology: (1) the proportion of woody cover increases as moisture in the deeper soil layers increases (Walter's two-layer hypothesis for coexistence of herbaceous and woody plants); (2) land use practices that cause a reduction in herbaceous vegetation and compaction of intercanopy soils lead to a long-term increase in the proportion of woody plants; and (3) changes in the ratios of herbaceous to woody plant biomass exhibit complex behavior (changes can happen quickly and are not directly reversible without intensive management). This integration of concepts results because rather than assuming a simple, one-way dependence of plant functional types on soil moisture heterogeneity, our model assumes an interdependence between the two: soil moisture heterogeneity constrains the composition of the plant community, which in turn modifies soil moisture heterogeneity. The four-compartment model that we propose enables, for the first time, an integrated picture of both dimensions of soil moisture heterogeneity - horizontal and vertical - and of the interdependence between soil moisture heterogeneity and the proportions of the plant functional types that make up a given plant community. This unified conceptual model can be applied to provide insight into the individual and the combined effects of climate and land use on semiarid plant communities within the grassland/forest continuum, which vary in the proportions of canopy and intercanopy patches. JF - Landscape Ecology AU - Breshears, D D AU - Barnes, F J AD - Environmental Science Group, Mail Stop J495, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, daveb@lanl.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 465 EP - 478 VL - 14 IS - 5 SN - 0921-2973, 0921-2973 KW - Ecology Abstracts KW - Grasslands KW - Semiarid environments KW - Forests KW - Soil moisture KW - Models KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17400546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Landscape+Ecology&rft.atitle=Interrelationships+between+plant+functional+types+and+soil+moisture+heterogeneity+for+semiarid+landscapes+within+the+grassland%2Fforest+continuum%3A+a+unified+conceptual+model&rft.au=Breshears%2C+D+D%3BBarnes%2C+F+J&rft.aulast=Breshears&rft.aufirst=D&rft.date=1999-10-01&rft.volume=14&rft.issue=5&rft.spage=465&rft.isbn=&rft.btitle=&rft.title=Landscape+Ecology&rft.issn=09212973&rft_id=info:doi/10.1023%2FA%3A1008040327508 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Soil moisture; Grasslands; Forests; Models; Semiarid environments DO - http://dx.doi.org/10.1023/A:1008040327508 ER - TY - JOUR T1 - Radionuclides in deer and elk from Los Alamos National Laboratory and the doses to humans from the ingestion of muscle and bone. AN - 69996650; 10466109 AB - This paper summarizes radionuclide concentrations (3H, 90Sr, 137Cs, 238Pu, 239,240Pu, 241Am, and totU) in muscle and bone tissue of mule deer (Odocoileus hemionus) and Rocky Mountain elk (Cervus elaphus) collected from Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, lands from 1991 through 1998. Also, the committed effective dose equivalent (CEDE) and the risk of excess cancer fatalities (RECF) to people who ingest muscle and bone from deer and elk collected from LANL lands were estimated. Most radionuclide concentrations in muscle and bone from individual deer (n = 11) and elk (n = 22) collected from LANL lands were either at less than detectable quantities (where the analytical result was smaller than two counting uncertainties) and/or within upper (95%) level background (BG) concentrations. As a group, most radionuclides in muscle and bone of deer and elk from LANL lands were not significantly higher (p < 0.10) than in similar tissues from deer (n = 3) and elk (n = 7) collected from BG locations. Also, elk that had been radio collared and tracked for two years and spent an average time of 50% of LANL lands were not significantly different in most radionuclides from road kill elk that have been collected as part of the environmental surveillance program. Overall, the upper (95%) level net CEDEs (the CEDE plus two sigma for each radioisotope minus background) at the most conservative ingestion rate (50 lbs of muscle and 13 lbs of bone) were as follows: deer muscle = 0.22 mrem y-1 (2.2 microSv y-1), deer bone = 3.8 mrem y-1 (38 microSv y-1), elk muscle = 0.12 mrem y-1 (1.2 microSv y-1), and elk bone = 1.7 mrem y-1 (17 microSv y-1). All CEDEs were far below the International Commission on Radiological Protection guideline of 100 mrem y-1 (1000 microSv y-1), and the highest muscle plus bone net CEDE corresponded to a RECF of 2E-06, which is far below the Environmental Protection Agency upper level guideline of 1E-04. JF - Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes AU - Fresquez, P R AU - Biggs, J R AU - Bennett, K D AU - Kraig, D H AU - Mullen, M A AU - Ferenbaugh, J K AD - Environment, Safety and Health Division, Los Alamos National Laboratory, NM 87545, USA. Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 901 EP - 915 VL - 34 IS - 5 SN - 0360-1234, 0360-1234 KW - Radioisotopes KW - 0 KW - Index Medicus KW - Animals KW - Laboratories KW - Humans KW - New Mexico KW - Muscles -- chemistry KW - Bone and Bones -- chemistry KW - Food Contamination, Radioactive KW - Meat -- analysis KW - Radioisotopes -- analysis KW - Nuclear Reactors KW - Deer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69996650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Production+of+%28super+14%29+C+and+%28super+10%29+Be+in+the+atmosphere+and+on+the+Earth%27s+surface&rft.au=Jull%2C+A+J+T%3BMcHargue%2C+Lanny+R%3BLifton%2C+N+A%3BPhillips%2C+W+M%3BQuade%2C+J&rft.aulast=Jull&rft.aufirst=A+J&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=160&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-09-14 N1 - Date created - 1999-09-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Radionuclides and trace elements in fish collected upstream and downstream of Los Alamos National Laboratory and the doses to humans from the consumption of muscle and bone. AN - 69993719; 10466108 AB - The purpose of this study was to determine radionuclide and trace element concentrations in bottom-feeding fish (catfish, carp, and suckers) collected from the confluences of some of the major canyons that cross Los Alamos National Laboratory (LANL) lands with the Rio Grande (RG) and the potential radiological doses from the ingestion of these fish. Samples of muscle and bone (and viscera in some cases) were analyzed for 3H, 90Sr, 137Cs, totU, 238Pu, 239,240Pu, and 241Am and Ag, As, Ba, Be, Cr, Cd, Cu, Hg, Ni, Pb, Sb, Se, and Tl. Most radionuclides, with the exception of 90Sr, in the muscle plus bone portions of fish collected from LANL canyons/RG were not significantly (p < 0.05) higher from fish collected upstream (San Ildefonso/background) of LANL. Strontium-90 in fish muscle plus bone tissue significantly (p < 0.05) increases in concentration starting from Los Alamos Canyon, the most upstream confluence (fish contained 3.4E-02 pCi g-1 [126E-02 Bq kg-1]), to Frijoles Canyon, the most downstream confluence (fish contained 14E-02 pCi g-1 [518E-02 Bq kg-1]). The differences in 90Sr concentrations in fish collected downstream and upstream (background) of LANL, however, were very small. Based on the average concentrations (+/- 2SD) of radionuclides in fish tissue from the four LANL confluences, the committed effective dose equivalent from the ingestion of 46 lb (21 kg) (maximum ingestion rate per person per year) of fish muscle plus bone, after the subtraction of background, was 0.1 +/- 0.1 mrem y-1 (1.0 +/- 1.0 microSv y-1), and was far below the International Commission on Radiological Protection (all pathway) permissible dose limit of 100 mrem y-1 (1000 microSv y-1). Of the trace elements that were found above the limits of detection (Ba, Cu, and Hg) in fish muscle collected from the confluences of canyons that cross LANL and the RG, none were in significantly higher (p < 0.05) concentrations than in muscle of fish collected from background locations. JF - Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes AU - Fresquez, P R AU - Kraig, D H AU - Mullen, M A AU - Naranjo, L AD - Environmental, Safety and Health Division, M887 Los Alamos National Laboratory, NM 87545, USA. Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 885 EP - 899 VL - 34 IS - 5 SN - 0360-1234, 0360-1234 KW - Radioisotopes KW - 0 KW - Trace Elements KW - Index Medicus KW - Animals KW - Catfishes KW - Humans KW - Carps KW - New Mexico KW - Cypriniformes KW - Muscles -- chemistry KW - Bone and Bones -- chemistry KW - Fishes KW - Food Contamination, Radioactive KW - Trace Elements -- analysis KW - Radioisotopes -- analysis KW - Fish Products -- analysis KW - Nuclear Reactors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69993719?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+science+and+health.+Part.+B%2C+Pesticides%2C+food+contaminants%2C+and+agricultural+wastes&rft.atitle=Radionuclides+and+trace+elements+in+fish+collected+upstream+and+downstream+of+Los+Alamos+National+Laboratory+and+the+doses+to+humans+from+the+consumption+of+muscle+and+bone.&rft.au=Fresquez%2C+P+R%3BKraig%2C+D+H%3BMullen%2C+M+A%3BNaranjo%2C+L&rft.aulast=Fresquez&rft.aufirst=P&rft.date=1999-09-01&rft.volume=34&rft.issue=5&rft.spage=885&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+science+and+health.+Part.+B%2C+Pesticides%2C+food+contaminants%2C+and+agricultural+wastes&rft.issn=03601234&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-09-14 N1 - Date created - 1999-09-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Assessment of need for transport tubes when continuously monitoring for radioactive aerosols. AN - 69984327; 10456505 AB - Aerosol transport tubes are often used to draw aerosol from desirable sampling locations to nearby air sampling equipment that cannot be placed at that location. In many plutonium laboratories at Los Alamos National Laboratory, aerosol transport tubes are used to transport aerosol from the front of room ventilation exhaust registers to continuous air monitors (CAMs) that are mounted on nearby walls. Transport tubes are used because past guidance suggests that extraction of aerosol samples from exhaust locations provides the most sensitive and reliable detection under conditions where the rooms have unpredictable release locations and significant spatial variability in aerosol concentrations after releases, and where CAMs cannot be located in front of exhaust registers without blocking worker walkways. Despite designs to minimize particle loss in tubes, aerosol transport model predictions suggest losses occur lowering the sensitivity of CAMs to accidentally released plutonium aerosol. The goal of this study was to test the hypotheses that the reliability, speed, and sensitivity of aerosol detection would be equal whether the sample was extracted from the front of the exhaust register or from the wall location of CAMs. Polydisperse oil aerosols were released from multiple locations in two plutonium laboratories to simulate plutonium aerosol releases. Networked laser particle counters (LPCs) were positioned to simultaneously measure time-resolved aerosol concentrations at each exhaust register (representative of sampling with transport tubes) and at each wall-mounted CAM location (representative of sampling without transport tubes). Results showed no significant differences in detection reliability, speed, or sensitivity for LPCs positioned at exhaust locations when compared to LPCs positioned at the CAM wall location. Therefore, elimination of transport tubes would likely improve CAM performance. JF - Health physics AU - Whicker, J J AU - Rodgers, J C AU - Lopez, R C AD - Los Alamos National Laboratory, NM 87545, USA. Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 322 EP - 327 VL - 77 IS - 3 SN - 0017-9078, 0017-9078 KW - Aerosols KW - 0 KW - Air Pollutants, Radioactive KW - Plutonium KW - 53023GN24M KW - Index Medicus KW - Health Physics KW - Evaluation Studies as Topic KW - Ventilation KW - Humans KW - Plutonium -- analysis KW - Nuclear Reactors KW - Air Pollutants, Radioactive -- analysis KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69984327?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Assessment+of+need+for+transport+tubes+when+continuously+monitoring+for+radioactive+aerosols.&rft.au=Whicker%2C+J+J%3BRodgers%2C+J+C%3BLopez%2C+R+C&rft.aulast=Whicker&rft.aufirst=J&rft.date=1999-09-01&rft.volume=77&rft.issue=3&rft.spage=322&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-08-30 N1 - Date created - 1999-08-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Integrated reservoir management for the long term; the Carpinteria offshore field AN - 52368223; 2000-033506 JF - Marine Georesources & Geotechnology AU - Whitney, E M AU - Kendall, R P AU - Brickey, M R AU - Coombs, S E AU - Duda, C A AU - Duda, V K A2 - Dellagiarino, George A2 - Miller, Lynda A. A2 - Doenges, Susann Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 103 EP - 116 PB - Taylor & Francis, London VL - 17 IS - 2-3 SN - 1064-119X, 1064-119X KW - United States KW - petroleum exploration KW - petroleum engineering KW - Northeast Pacific KW - geophysical surveys KW - development KW - offshore KW - natural gas KW - well-logging KW - government agencies KW - data processing KW - petroleum KW - Santa Barbara California KW - oil and gas fields KW - California KW - Santa Barbara Channel KW - East Pacific KW - Carpinteria Field KW - programs KW - three-dimensional models KW - Santa Barbara County California KW - North Pacific KW - Pacific Ocean KW - surveys KW - reservoir properties KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52368223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Georesources+%26+Geotechnology&rft.atitle=Integrated+reservoir+management+for+the+long+term%3B+the+Carpinteria+offshore+field&rft.au=Whitney%2C+E+M%3BKendall%2C+R+P%3BBrickey%2C+M+R%3BCoombs%2C+S+E%3BDuda%2C+C+A%3BDuda%2C+V+K&rft.aulast=Whitney&rft.aufirst=E&rft.date=1999-09-01&rft.volume=17&rft.issue=2-3&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Marine+Georesources+%26+Geotechnology&rft.issn=1064119X&rft_id=info:doi/ L2 - http://www.ingentaconnect.com/content/tandf/umgt LA - English DB - GeoRef N1 - Conference title - Fourth symposium on Studies related to continental margins; a summary of year-nine and year-ten activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 2 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - California; Carpinteria Field; data processing; development; East Pacific; geophysical surveys; government agencies; natural gas; North Pacific; Northeast Pacific; offshore; oil and gas fields; Pacific Ocean; petroleum; petroleum engineering; petroleum exploration; programs; reservoir properties; Santa Barbara California; Santa Barbara Channel; Santa Barbara County California; surveys; three-dimensional models; United States; well-logging ER - TY - JOUR T1 - Thermal evolution of the mantle following continental aggregation in three-dimensional convection models AN - 50167313; 1999-067640 AB - The claim that supercontinents insulate the mantle is largely based on recognition that seismically slow mantle below the Atlantic-African geoid high coincides with the former location of Pangea. We investigate the viability of continental insulation by varying both plate geometries and mantle properties in six three-dimensional (3D) mantle convection models. The efficiency of continental insulation is quantified by calculating the rate of change of the average temperature in the subcontinental mantle. Our findings generally agree with two-dimensional (2D) modeling results. However, we conclude that 2D convection models may exaggerate subcontinental heating, particularly in largely bottom heated cases, and that subcontinental heating results from an absence of subduction in the subcontinental mantle rather than the insulation of active upwellings. Correspondingly, we find that when large degrees of internal heating are present in the mantle, hotter-than-average regions evolve below large oceanic plates. Copyright 1999 by the American Geophysical Union. JF - Geophysical Research Letters AU - Lowman, Julian P AU - Gable, Carl W Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 2649 EP - 2652 PB - American Geophysical Union, Washington, DC VL - 26 IS - 17 SN - 0094-8276, 0094-8276 KW - continental margin KW - plate tectonics KW - three-dimensional models KW - mathematical methods KW - mantle KW - geodesy KW - convection KW - thermal regime KW - geoid KW - Atlantic Ocean KW - African Plate KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50167313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Thermal+evolution+of+the+mantle+following+continental+aggregation+in+three-dimensional+convection+models&rft.au=Lowman%2C+Julian+P%3BGable%2C+Carl+W&rft.aulast=Lowman&rft.aufirst=Julian&rft.date=1999-09-01&rft.volume=26&rft.issue=17&rft.spage=2649&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F1999GL008332 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 13 N1 - PubXState - DC N1 - Document feature - illus. incl. block diag. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - African Plate; Atlantic Ocean; continental margin; convection; geodesy; geoid; mantle; mathematical methods; plate tectonics; thermal regime; three-dimensional models DO - http://dx.doi.org/10.1029/1999GL008332 ER - TY - JOUR T1 - Electrical conductivity of orthopyroxene and its high-pressure phases AN - 50167280; 1999-067639 AB - Electrical conductivity of orthopyroxene, clinopyroxene, and ilmenite + garnet with the same starting material San Carlos orthopyroxene (Mg (sub 0.92) Fe (sub 0.08) )SiO (sub 3) containing 2.89 % Al (sub 2) O (sub 3) by weight were measured within their respective stability fields in a multi-anvil press. In the formula for conductivity sigma = sigma (sub 0) exp(-Delta H/kT), pre-exponential factors sigma (sub 0) of orthopyroxene, clinopyroxene, and ilmenite + garnet are 5248, 1778, 2239 S/m, respectively, and the activation enthalpies are 1.80, 1.87 and 1.66 eV, respectively. These results are required for defining a laboratory-based conductivity-depth profile of the upper mantle. Copyright 1999 by the American Geophysical Union. JF - Geophysical Research Letters AU - Xu, Yousheng AU - Shankland, Thomas J Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 2645 EP - 2648 PB - American Geophysical Union, Washington, DC VL - 26 IS - 17 SN - 0094-8276, 0094-8276 KW - silicates KW - upper mantle KW - electrical conductivity KW - pressure KW - mantle KW - high pressure KW - depth KW - pyroxene group KW - San Carlos Orthopyroxene KW - orthopyroxene KW - anvil cells KW - chain silicates KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50167280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Electrical+conductivity+of+orthopyroxene+and+its+high-pressure+phases&rft.au=Xu%2C+Yousheng%3BShankland%2C+Thomas+J&rft.aulast=Xu&rft.aufirst=Yousheng&rft.date=1999-09-01&rft.volume=26&rft.issue=17&rft.spage=2645&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F1999GL008378 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - anvil cells; chain silicates; depth; electrical conductivity; high pressure; mantle; orthopyroxene; pressure; pyroxene group; San Carlos Orthopyroxene; silicates; upper mantle DO - http://dx.doi.org/10.1029/1999GL008378 ER - TY - JOUR T1 - High-resolution measurements of absolute thorium abundances on the lunar surface AN - 50162786; 1999-067648 AB - The Lunar Prospector (LP) Gamma-Ray Spectrometer (GRS) has been used to map the global abundance of thorium on the lunar surface. A global map of absolute thorium abundances on a 2 degrees by 2 degrees equal-area pixel scale is presented using new detector modeling results and low altitude LP data. Because thorium is relatively abundant in KREEP-rich material, these data provide fundamental information regarding the locations and importance of terranes that are rich in KREEP bearing materials. JF - Geophysical Research Letters AU - Lawrence, D J AU - Feldman, W C AU - Barraclough, B L AU - Binder, A B AU - Elphic, R C AU - Maurice, S AU - Miller, M C AU - Prettyman, T H Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 2681 EP - 2684 PB - American Geophysical Union, Washington, DC VL - 26 IS - 17 SN - 0094-8276, 0094-8276 KW - high-resolution methods KW - concentration KW - Moon KW - isotopes KW - Lunar Prospector Program KW - Th-232 KW - mapping KW - measurement KW - KREEP KW - radioactive isotopes KW - metals KW - thorium KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50162786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=High-resolution+measurements+of+absolute+thorium+abundances+on+the+lunar+surface&rft.au=Lawrence%2C+D+J%3BFeldman%2C+W+C%3BBarraclough%2C+B+L%3BBinder%2C+A+B%3BElphic%2C+R+C%3BMaurice%2C+S%3BMiller%2C+M+C%3BPrettyman%2C+T+H&rft.aulast=Lawrence&rft.aufirst=D&rft.date=1999-09-01&rft.volume=26&rft.issue=17&rft.spage=2681&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F1999GL008361 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - actinides; concentration; high-resolution methods; isotopes; KREEP; Lunar Prospector Program; mapping; measurement; metals; Moon; radioactive isotopes; Th-232; thorium DO - http://dx.doi.org/10.1029/1999GL008361 ER - TY - JOUR T1 - Nuclear medicine finds the right chemistry AN - 17342530; 4602694 AB - The two major foci of nuclear medicine--non-invasive imaging of organs and the destruction of cancer cells--rely on localization of radioactive compounds within organs of the body. For diagnostic purposes, technetium-99m ( super(99m)Tc) is the workhorse isotope. In the US alone, roughly 7 million administrations of super(99m)Tc radiopharmaceuticals are performed annually, so it is likely that someone you know will be the recipient of a procedure using this radioisotope. In this issue, a multidisciplinary team of scientists at four European institutions reports a relatively simple procedure that could greatly expand the use of super(99m)Tc radiopharmaceuticals for diagnosing diseases in humans. They have developed a new synthesis for a technetium-carbonyl complex that allows direct labeling of single-chain antibodies, while avoiding the use of bulky chelators that can reduce the biological activity of the antibodies. JF - Nature Biotechnology AU - Sattelberger, A P AU - Atcher, R W AD - chemical science and technology division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, sattelberger@lanl.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 849 EP - 850 VL - 17 IS - 9 SN - 1087-0156, 1087-0156 KW - Fv KW - nuclear medicine KW - radiopharmaceuticals KW - technetium-99m KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Antibodies KW - Reviews KW - W 30965:Miscellaneous, Reviews KW - W3 33000:General topics and reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17342530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Biotechnology&rft.atitle=Nuclear+medicine+finds+the+right+chemistry&rft.au=Sattelberger%2C+A+P%3BAtcher%2C+R+W&rft.aulast=Sattelberger&rft.aufirst=A&rft.date=1999-09-01&rft.volume=17&rft.issue=9&rft.spage=849&rft.isbn=&rft.btitle=&rft.title=Nature+Biotechnology&rft.issn=10870156&rft_id=info:doi/10.1038%2F12832 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Reviews; Antibodies DO - http://dx.doi.org/10.1038/12832 ER - TY - JOUR T1 - A novel role in DNA metabolism for the binding of Fen1/Rad27 to PCNA and implications for genetic risk. AN - 69905172; 10409728 AB - Fen1/Rad27 nuclease activity, which is important in DNA metabolism, is stimulated by proliferating cell nuclear antigen (PCNA) in vitro. The in vivo role of the PCNA interaction was investigated in the yeast Rad27. A nuclease-defective rad27 mutation had a dominant-negative effect that was suppressed by a mutation in the PCNA binding site, thereby demonstrating the importance of the Rad27-PCNA interaction. The PCNA-binding defect alone had little effect on mutation, recombination, and the methyl methanesulfonate (MMS) response in repair-competent cells, but it greatly amplified the MMS sensitivity of a rad51 mutant. Furthermore, the PCNA binding mutation resulted in lethality when combined with a homozygous or even a heterozygous pol3-01 mutation in the 3'-->5' exonuclease domain of DNA polymerase delta. These results suggest that phenotypically mild polymorphisms in DNA metabolic proteins can have dramatic consequences when combined. JF - Molecular and cellular biology AU - Gary, R AU - Park, M S AU - Nolan, J P AU - Cornelius, H L AU - Kozyreva, O G AU - Tran, H T AU - Lobachev, K S AU - Resnick, M A AU - Gordenin, D A AD - Life Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 5373 EP - 5382 VL - 19 IS - 8 SN - 0270-7306, 0270-7306 KW - DNA, Fungal KW - 0 KW - DNA-Binding Proteins KW - Fungal Proteins KW - Mutagens KW - Proliferating Cell Nuclear Antigen KW - Saccharomyces cerevisiae Proteins KW - Methyl Methanesulfonate KW - AT5C31J09G KW - Protein Kinases KW - EC 2.7.- KW - Checkpoint Kinase 1 KW - EC 2.7.11.1 KW - DNA Polymerase III KW - EC 2.7.7.- KW - RAD51 protein, S cerevisiae KW - Rad51 Recombinase KW - Exodeoxyribonucleases KW - EC 3.1.- KW - Exodeoxyribonuclease V KW - EC 3.1.11.5 KW - Index Medicus KW - Drug Resistance -- genetics KW - DNA Repair KW - Polymorphism, Genetic KW - DNA Damage KW - DNA-Binding Proteins -- genetics KW - Mutagens -- pharmacology KW - Protein Binding KW - Binding Sites KW - Methyl Methanesulfonate -- pharmacology KW - Risk KW - Models, Genetic KW - DNA Polymerase III -- genetics KW - DNA-Binding Proteins -- physiology KW - DNA Polymerase III -- metabolism KW - DNA Replication KW - Saccharomyces cerevisiae -- genetics KW - Protein Kinases -- metabolism KW - Fungal Proteins -- physiology KW - Saccharomyces cerevisiae -- metabolism KW - Protein Kinases -- deficiency KW - Protein Kinases -- genetics KW - Fungal Proteins -- genetics KW - Exodeoxyribonucleases -- metabolism KW - DNA, Fungal -- metabolism KW - Proliferating Cell Nuclear Antigen -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69905172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+and+cellular+biology&rft.atitle=A+novel+role+in+DNA+metabolism+for+the+binding+of+Fen1%2FRad27+to+PCNA+and+implications+for+genetic+risk.&rft.au=Gary%2C+R%3BPark%2C+M+S%3BNolan%2C+J+P%3BCornelius%2C+H+L%3BKozyreva%2C+O+G%3BTran%2C+H+T%3BLobachev%2C+K+S%3BResnick%2C+M+A%3BGordenin%2C+D+A&rft.aulast=Gary&rft.aufirst=R&rft.date=1999-08-01&rft.volume=19&rft.issue=8&rft.spage=5373&rft.isbn=&rft.btitle=&rft.title=Molecular+and+cellular+biology&rft.issn=02707306&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-08-19 N1 - Date created - 1999-08-19 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Biochemistry. 1991 Sep 3;30(35):8631-7 [1716151] J Biol Chem. 1996 Nov 22;271(47):30068-76 [8939954] Cell. 1992 May 1;69(3):457-70 [1581961] EMBO J. 1993 Apr;12(4):1467-73 [8385605] Nature. 1993 May 13;363(6425):182-5 [8483504] Mol Gen Genet. 1994 Feb;242(3):289-96 [8107676] J Biol Chem. 1994 Apr 8;269(14):10923-34 [8144677] Mol Cell Biol. 1994 Jul;14(7):4390-7 [7516465] Nucleic Acids Res. 1994 Aug 11;22(15):3011-7 [8065914] Genet Anal Tech Appl. 1994;11(2):34-8 [7917498] Genes Dev. 1994 Jun 1;8(11):1344-55 [7926735] Proc Natl Acad Sci U S A. 1994 Oct 11;91(21):9803-7 [7524089] J Biol Chem. 1994 Nov 18;269(46):28535-8 [7961795] J Bacteriol. 1995 Jan;177(2):364-71 [7814325] EMBO J. 1997 Jun 2;16(11):3341-8 [9214649] J Biol Chem. 1997 Sep 26;272(39):24522-9 [9305916] Science. 1997 Sep 26;277(5334):1996-2000 [9302295] Mol Cell Biol. 1997 Nov;17(11):6367-78 [9343398] Hum Mol Genet. 1998 Jan;7(1):69-74 [9384605] Proc Natl Acad Sci U S A. 1997 Nov 25;94(24):12863-8 [9371766] Science. 1998 Feb 6;279(5352):853-6 [9452383] Cell. 1997 Jan 24;88(2):253-63 [9008166] Oncogene. 1997 Feb 13;14(6):629-40 [9038370] Mol Cell Biol. 1997 Apr;17(4):2136-42 [9121462] Bioessays. 1997 Mar;19(3):233-40 [9080773] Mol Cell Biol. 1997 May;17(5):2859-65 [9111358] Nat Genet. 1997 Jun;16(2):116-8 [9171819] Oncogene. 1997 May 15;14(19):2313-21 [9178907] Proc Natl Acad Sci U S A. 1997 Jul 8;94(14):7487-92 [9207118] Proc Natl Acad Sci U S A. 1998 Feb 17;95(4):1392-7 [9465025] Genetics. 1998 Feb;148(2):611-24 [9504910] J Biol Chem. 1998 Apr 10;273(15):8842-8 [9535864] Mol Cell Biol. 1998 May;18(5):2779-88 [9566897] Genetics. 1998 Apr;148(4):1507-24 [9560370] Bioessays. 1998 Mar;20(3):195-9 [9631646] Curr Genet. 1998 Jul;34(1):21-9 [9683672] Annu Rev Biochem. 1998;67:721-51 [9759502] J Biol Chem. 1998 Oct 9;273(41):26880-90 [9756935] Cell. 1998 Oct 2;95(1):135-46 [9778254] Nucleic Acids Res. 1998 Dec 15;26(24):5589-95 [9837987] Nucleic Acids Res. 1999 Feb 1;27(3):736-42 [9889267] Nucleic Acids Res. 1999 Feb 15;27(4):956-62 [9927726] J Biol Chem. 1999 Feb 12;274(7):4354-63 [9933638] Mol Cell Biol. 1999 Mar;19(3):2000-7 [10022887] J Biol Chem. 1995 Mar 3;270(9):4193-6 [7876174] Science. 1995 Jul 14;269(5221):238-40 [7618086] Mol Cell Biol. 1995 Aug;15(8):4291-302 [7623823] J Biol Chem. 1995 Sep 22;270(38):22109-12 [7673186] J Biol Chem. 1996 Apr 19;271(16):9173-6 [8621570] Nucleic Acids Res. 1996 Jun 1;24(11):2036-43 [8668533] Biochemistry. 1996 Jul 16;35(28):9266-77 [8703932] Biochemistry. 1996 Sep 10;35(36):11668-76 [8794747] Proc Natl Acad Sci U S A. 1991 Nov 1;88(21):9473-7 [1658784] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Differential susceptibilities to chronic beryllium disease contributed by different Glu69 HLA-DPB1 and -DPA1 alleles. AN - 69904299; 10415070 AB - Chronic beryllium disease (CBD) is associated with the allelic substitution of a Glu69 in the HLA-DPB1 gene. Although up to 97% of CBD patients may have the Glu69 marker, about 30-45% of beryllium-exposed, unaffected individuals carry the same marker. Because CBD occurs in only 1-6% of exposed workers, the presence of Glu69 does not appear to be the sole genetic factor underlying the disease development. Using two rounds of direct automated DNA sequencing to precisely assign HLA-DPB1 haplotypes, we have discovered highly significant Glu69-containing allele frequency differences between the CBD patients and a beryllium-exposed, nondiseased control group. Individuals with DPB1 Glu69 in both alleles were almost exclusively found in the CBD group (6/20) vs the control group (1/75). Whereas most Glu69 carriers from the control group had a DPB1 allele *0201 (68%), most Glu69 carriers from the CBD group had a non-*0201 DPB1 Glu69-carrying allele (84%). The DPB1 allele *0201 was almost exclusively (29/30) associated with DPA1 *01 alleles, while the non-*0201 Glu69-containing DPB1 alleles were closely associated with DPA1 *02 alleles (26/29). Relatively rare Glu69-containing alleles *1701, *0901, and *1001 had extremely high frequencies in the CBD group (50%), as compared with the control group (6.7%). Therefore, the most common Glu69-containing DPB1 allele, *0201, does not seem to be a major disease allele. The results suggest that it is not the mere presence of Glu69, per se, but specific Glu69-containing alleles and their copy number (homozygous or heterozygous) that confer the greatest susceptibility to CBD in exposed individuals. JF - Journal of immunology (Baltimore, Md. : 1950) AU - Wang, Z AU - White, P S AU - Petrovic, M AU - Tatum, O L AU - Newman, L S AU - Maier, L A AU - Marrone, B L AD - Life Science Division, Los Alamos National Laboratory, NM 87545, USA. Y1 - 1999/08/01/ PY - 1999 DA - 1999 Aug 01 SP - 1647 EP - 1653 VL - 163 IS - 3 SN - 0022-1767, 0022-1767 KW - HLA-DP Antigens KW - 0 KW - HLA-DP alpha-Chains KW - HLA-DP beta-Chains KW - HLA-DPA1 antigen KW - HLA-DPB1 antigen KW - Glutamic Acid KW - 3KX376GY7L KW - Abridged Index Medicus KW - Index Medicus KW - Homozygote KW - Heterozygote Detection KW - Gene Frequency KW - Humans KW - Dimerization KW - Chronic Disease KW - Berylliosis -- immunology KW - HLA-DP Antigens -- metabolism KW - Alleles KW - Genetic Predisposition to Disease -- immunology KW - Berylliosis -- etiology KW - Genetic Predisposition to Disease -- genetics KW - HLA-DP Antigens -- genetics KW - HLA-DP Antigens -- chemistry KW - Berylliosis -- genetics KW - Glutamic Acid -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69904299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+immunology+%28Baltimore%2C+Md.+%3A+1950%29&rft.atitle=Differential+susceptibilities+to+chronic+beryllium+disease+contributed+by+different+Glu69+HLA-DPB1+and+-DPA1+alleles.&rft.au=Wang%2C+Z%3BWhite%2C+P+S%3BPetrovic%2C+M%3BTatum%2C+O+L%3BNewman%2C+L+S%3BMaier%2C+L+A%3BMarrone%2C+B+L&rft.aulast=Wang&rft.aufirst=Z&rft.date=1999-08-01&rft.volume=163&rft.issue=3&rft.spage=1647&rft.isbn=&rft.btitle=&rft.title=Journal+of+immunology+%28Baltimore%2C+Md.+%3A+1950%29&rft.issn=00221767&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-08-12 N1 - Date created - 1999-08-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Oxygen isotope studies of illite/smectite and clinoptilolite from Yucca Mountain; implications for paleohydrologic conditions AN - 52425232; 1999-066596 AB - Illite/smectite (I/S) and clinoptilolite mineral separates from drill holes in 11 Ma old altered volcanic tuffs of Yucca Mountain, Nevada were analyzed for delta (super 18) O values. We reconstruct the diagenetic and paleohydrologic conditions using the isotopic composition of clay minerals combined with other independent geological observations. Our isotopic data show that the delta (super 18) O values of clay minerals preserve paleohydrologic information from a Middle to Late Miocene episode of hydrothermal alteration at Yucca Mountain. We provide additional evidence for a dual decoupled groundwater circulation system at Yucca Mountain ca. 11 Ma ago. A near-surface system dominated by downward percolation of groundwater is separated from a deeper hydrothermal system by profound thermal and isotopic discontinuities near the R0-R1 I/S transition. Given the set of inferred formation temperatures and the isotopic composition of formation water, we show that the current set of isotopic compositions of clinoptilolite is significantly lower than those at the time of formation, and are not significantly different from the equilibrium values defined by the current groundwater delta (super 18) O and geothermal gradient. We conclude that, unlike I/S, clinoptilolite has not preserved its original isotopic composition over the past 11 million years, but we do not know how long is necessary to reset the isotopic signature of clinoptilolite under near-surface conditions. The current groundwater at Yucca Mountain is 4per mil more enriched in (super 18) O than the paleogroundwater 10-11 Ma ago as inferred from our reconstruction. This shift may be attributed to a change in the pattern of atmospheric circulation, such as by surficial uplift of the Sierra Nevada, which caused it to become an orographic barrier to moisture penetrating inland from the west. JF - Earth and Planetary Science Letters AU - Feng, Xiahong AU - Faiia, Anthony M AU - WoldeGabriel, Giday AU - Aronson, James L AU - Poage, Michael A AU - Chamberlain, C Page Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 95 EP - 106 PB - Elsevier, Amsterdam VL - 171 IS - 1 SN - 0012-821X, 0012-821X KW - United States KW - silicates KW - volcanic rocks KW - oxygen KW - geologic hazards KW - isotopes KW - igneous rocks KW - clay mineralogy KW - paleoclimatology KW - stable isotopes KW - radioactive waste KW - ground water KW - Cenozoic KW - Nevada Test Site KW - clinoptilolite KW - zeolite group KW - framework silicates KW - tuff KW - geothermal gradient KW - Yucca Mountain KW - geochemistry KW - Nevada KW - high-level waste KW - experimental studies KW - paleohydrology KW - isotope ratios KW - smectite KW - O-18/O-16 KW - illite KW - Nye County Nevada KW - Miocene KW - hydrothermal conditions KW - clay minerals KW - pyroclastics KW - Tertiary KW - recharge KW - Neogene KW - diagenesis KW - sheet silicates KW - waste disposal KW - underground disposal KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52425232?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Oxygen+isotope+studies+of+illite%2Fsmectite+and+clinoptilolite+from+Yucca+Mountain%3B+implications+for+paleohydrologic+conditions&rft.au=Feng%2C+Xiahong%3BFaiia%2C+Anthony+M%3BWoldeGabriel%2C+Giday%3BAronson%2C+James+L%3BPoage%2C+Michael+A%3BChamberlain%2C+C+Page&rft.aulast=Feng&rft.aufirst=Xiahong&rft.date=1999-08-01&rft.volume=171&rft.issue=1&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2FS0012-821X%2899%2900136-3 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1999-01-01 N1 - Number of references - 41 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Cenozoic; clay mineralogy; clay minerals; clinoptilolite; diagenesis; experimental studies; framework silicates; geochemistry; geologic hazards; geothermal gradient; ground water; high-level waste; hydrothermal conditions; igneous rocks; illite; isotope ratios; isotopes; Miocene; Neogene; Nevada; Nevada Test Site; Nye County Nevada; O-18/O-16; oxygen; paleoclimatology; paleohydrology; pyroclastics; radioactive waste; recharge; sheet silicates; silicates; smectite; stable isotopes; Tertiary; tuff; underground disposal; United States; volcanic rocks; waste disposal; Yucca Mountain; zeolite group DO - http://dx.doi.org/10.1016/S0012-821X(99)00136-3 ER - TY - JOUR T1 - Correlation of deposits and vent locations of the proximal Campanian Ignimbrite deposits, Campi Flegrei, Italy, based on natural remanent magnetization and anisotropy of magnetic susceptibility characteristics AN - 52412922; 2000-006236 AB - Correlation of the distal deposits of the Campanian Ignimbrite with their proximal equivalents in the Campi Flegrei caldera is complicated by a lack of medial exposures, complex and limited proximal stratigraphic sections, and large lateral facies changes. Paleomagnetic data from 10 sites in and near the Campi Flegrei yield natural remanent magnetizations (NRM) that are statistically indistinguishable from the distal Campanian Ignimbrite. In addition, their virtual geomagnetic pole (VGP) yields a possible correlation with Lac du Bouchet, France, secular variation data that indicate an age of approximately 32,850 (super 14) C years. The secular variation at this age was only briefly at this VGP, and did not return to it for >10,000 years, so the paleomagnetic correlation of proximal and distal deposits is unique and robust. The date is consistent with (super 14) C dates from the Campanian Ignimbrite, but younger than (super 39) Ar/ (super 40) Ar dates for the same rocks. This suggests that a better correction factor for cosmic flux for this time period is needed to calibrate older (super 14) C dates. Anisotropy of magnetic susceptibility (AMS) data show that the proximal deposits have an oblate (disk-shaped), poorly lineated magnetic fabric. The distal deposits are much better lineated. The difference may be due to chaotic depositional currents in the proximal areas, in which particles were not well aligned. With greater distance of travel, and loss of energy, particles within the flow became aligned and developed stronger AMS lineations. Early eruptions of the Piperno Tuff were from a central vent north of Pozzuoli, whereas later tuffs that underlie the Breccia Museo may have been emplaced by flows associated with ring vents located on the northern and southern caldera margins. JF - Journal of Volcanology and Geothermal Research AU - Ort, Michael H AU - Rosi, Mauro AU - Anderson, Charles D A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 167 EP - 178 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - Phlegraean Fields KW - isotopes KW - igneous rocks KW - magnetization KW - Europe KW - Holocene KW - Italy KW - Southern Europe KW - Cenozoic KW - volcanic features KW - radioactive isotopes KW - remanent magnetization KW - dates KW - carbon KW - Campanian Ignimbrite KW - absolute age KW - Asia KW - Ar/Ar KW - Quaternary KW - ignimbrite KW - paleomagnetism KW - correlation KW - Campania Italy KW - calderas KW - pyroclastics KW - eruptions KW - magnetic susceptibility KW - Pleistocene KW - C-14 KW - anisotropy KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52412922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Correlation+of+deposits+and+vent+locations+of+the+proximal+Campanian+Ignimbrite+deposits%2C+Campi+Flegrei%2C+Italy%2C+based+on+natural+remanent+magnetization+and+anisotropy+of+magnetic+susceptibility+characteristics&rft.au=Ort%2C+Michael+H%3BRosi%2C+Mauro%3BAnderson%2C+Charles+D&rft.aulast=Ort&rft.aufirst=Michael&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900034-7 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - absolute age; anisotropy; Ar/Ar; Asia; C-14; calderas; Campania Italy; Campanian Ignimbrite; carbon; Cenozoic; correlation; dates; eruptions; Europe; Holocene; igneous rocks; ignimbrite; isotopes; Italy; magnetic susceptibility; magnetization; paleomagnetism; Phlegraean Fields; Pleistocene; pyroclastics; Quaternary; radioactive isotopes; remanent magnetization; Southern Europe; volcanic features; volcanic rocks DO - http://dx.doi.org/10.1016/S0377-0273(99)00034-7 ER - TY - JOUR T1 - The role of transfer structures on volcanic activity at Campi Flegrei (southern Italy) AN - 52412844; 2000-006234 AB - The Tyrrhenian margin of Central Italy underwent extension during Pliocene and Quaternary. Extension occurred mainly through NW-SE normal faults, bordering a sequence of Plio-Quaternary basins. These basins are offset by coeval NE-SW faults, which show strike-slip and normal motions and have been interpreted as transfer faults. Plio-Quaternary volcanic activity along the margin occurred along a NW-SE belt, systematically in correspondence with NE-SW transverse systems. The Campi Flegrei Volcanic District (CFVD), on the Southern Tyrrhenian margin, consists of an active NE-SW volcanic ridge developed along NE-SW fractures. We performed a structural field analysis with analogue and mechanical models to investigate the role of transverse structures upon volcanism at Campi Flegrei. Field analysis at Campi Flegrei recognized NE-SW and, to a lesser extent, coeval NW-SE active fractures. Analogue experiments have simulated the development of transfer fault systems in brittle extensional domains. The experiments show that subvertical transfer faults connect offset adjacent normal faults dipping 60 degrees . The mechanical model is based on the stress equations in uniaxial lithostatic conditions and absence of regional stresses. It shows how pre-existing subvertical fractures require the smallest magmatic pressures to be penetrated. For a given magmatic pressure, subvertical fractures might be penetrated more deeply, tapping more easily primitive magmas. These results suggest that the CFVD is located along a NE-SW transfer zone connecting NW-SE regional normal faults. Volcanic activity along such NE-SW trend would be induced by the subvertical dip of the transfer faults. The subvertical dip of transfer faults also suggests an explanation for the emission of the more primitive products along NE-SW systems at Campi Flegrei. These considerations find a wider application on the remaining volcanic districts of the margin, located in the same overall structural setting. JF - Journal of Volcanology and Geothermal Research AU - Acocella, V AU - Salvini, F AU - Funiciello, R AU - Faccenna, C A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 123 EP - 139 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - Quaternary KW - Phlegraean Fields KW - fissures KW - Europe KW - strike-slip faults KW - Italy KW - Southern Europe KW - Campania Italy KW - Cenozoic KW - Tertiary KW - volcanism KW - Neogene KW - eruptions KW - transfer faults KW - volcanoes KW - Pliocene KW - faults KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52412844?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=The+role+of+transfer+structures+on+volcanic+activity+at+Campi+Flegrei+%28southern+Italy%29&rft.au=Acocella%2C+V%3BSalvini%2C+F%3BFuniciello%2C+R%3BFaccenna%2C+C&rft.aulast=Acocella&rft.aufirst=V&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900032-3 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 87 N1 - Document feature - illus. incl. geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Campania Italy; Cenozoic; eruptions; Europe; faults; fissures; Italy; Neogene; Phlegraean Fields; Pliocene; Quaternary; Southern Europe; strike-slip faults; Tertiary; transfer faults; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(99)00032-3 ER - TY - JOUR T1 - The present state of the magmatic system of the Campi Flegrei caldera based on a reconstruction of its behavior in the past 12 ka AN - 52412799; 2000-006240 AB - New geochemical and Sr-isotope data have been acquired on samples representative of volcanic units erupted inside the resurgent Campi Flegrei caldera (CFc) over the past 12 ka. These data, integrated with previous published petrological, and with newly acquired geochronological, volcanological and geothermal data, shed light on the nature and timing of the processes that controlled the evolution of the Phlegraean magmatic system. In the past 12 ka, three isotopically and geochemically distinct magmatic components were erupted at the CFc as either homogeneous or mixed magma batches. One component, Campanian Ignimbrite component (CIc) ( (super 87) Sr/ (super 86) Sr = 0.70735-0.70740), is similar to the trachytic magma extruded during the first phase of the Campanian Ignimbrite (CI) eruption (37 ka). A second component, Neapolitan Yellow Tuff component (NYTc) ( (super 87) Sr/ (super 86) Sr = 0.70750-0.70757), is similar to the latitic-alkali-trachytic magma batches extruded during the course of the Neapolitan Yellow Tuff (NYT) eruption (12 ka). A third component, Minopoli component (MIc) ( (super 87) Sr/ (super 86) Sr nearly equal 0.7086), is similar to the trachybasaltic magma of the Minopoli 2 (MI) eruption (9.7 ka). These components were erupted as either single batches of magma, or mixed CI-NYT or MI-NYT batches of magma, through vents located either along the structural boundary of the NYT caldera or inside the NYT caldera, mainly on portions of the resurgent block under extensional stress. The CI and NYT components represent residual portions of older, large-volume magma reservoirs which have fed eruptions since about 60 and 15 ka, respectively. The least-evolved MI component was erupted only during the 12-9.5 ka and 8.6-8.2 ka epochs of activity, through vents located on a NE-SW regional fault system. This component could represent a deeper reservoir tapped by the NE-SW regional fault system reactivated after the NYT caldera collapse. Deeper MI and shallower CI and NYT magmatic systems interacted by mixing among batches of magma during their rise to surface. Overall, the data suggest that the CFc magmatic system today is characterized by the presence of two larger, independent reservoirs, filled by residual portions of the CI and NYT magmas. These generated many smaller, shallower pockets of evolved magma, that fed most of the eruptions that occurred in the CFc over the past 12 ka. Moreover, a deeper reservoir (MI), tapped by the NE-SW regional fault system, provided batches of less-evolved magma that mixed with magma present in the shallower pockets. JF - Journal of Volcanology and Geothermal Research AU - D'Antonio, M AU - Civetta, Lucia AU - Orsi, Giovanna AU - Pappalardo, L AU - Piochi, M AU - Carandente, A AU - De Vita, S AU - Di Vito, M A AU - Isaia, R A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 247 EP - 268 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - Phlegraean Fields KW - isotopes KW - igneous rocks KW - Europe KW - Holocene KW - stable isotopes KW - Italy KW - Southern Europe KW - Cenozoic KW - volcanic features KW - mixing KW - basalts KW - alkaline earth metals KW - Quaternary KW - isotope ratios KW - ignimbrite KW - Campania Italy KW - calderas KW - Sr-87/Sr-86 KW - pyroclastics KW - metals KW - magmas KW - eruptions KW - strontium KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52412799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=The+present+state+of+the+magmatic+system+of+the+Campi+Flegrei+caldera+based+on+a+reconstruction+of+its+behavior+in+the+past+12+ka&rft.au=D%27Antonio%2C+M%3BCivetta%2C+Lucia%3BOrsi%2C+Giovanna%3BPappalardo%2C+L%3BPiochi%2C+M%3BCarandente%2C+A%3BDe+Vita%2C+S%3BDi+Vito%2C+M+A%3BIsaia%2C+R&rft.aulast=D%27Antonio&rft.aufirst=M&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900038-4 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 55 N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; basalts; calderas; Campania Italy; Cenozoic; eruptions; Europe; Holocene; igneous rocks; ignimbrite; isotope ratios; isotopes; Italy; magmas; metals; mixing; Phlegraean Fields; pyroclastics; Quaternary; Southern Europe; Sr-87/Sr-86; stable isotopes; strontium; volcanic features; volcanic rocks DO - http://dx.doi.org/10.1016/S0377-0273(99)00038-4 ER - TY - JOUR T1 - Plinian pumice fall deposit of the Campanian Ignimbrite eruption (Phlegraean Fields, Italy) AN - 52412773; 2000-006237 AB - A plinian pumice fall deposit associated with the Campanian Ignimbrite eruption (36 ka, Phlegraean Fields caldera, Italy) occurs at the base of the distal grey ignimbrite in 15 localities spread over an area exceeding 1500 km (super 2) between Benevento and the Sorrentina peninsula. In the thickest stratigraphic section at Voscone (130 cm), 45 km east of the Phlegraean caldera centre (Pozzuoli), the deposit consists of two units: the lower fall unit (LFU) is well sorted, exhibits reverse size grading and is composed of equidimensional light-grey pumice clasts with very subordinate accidental lithics; the upper fall unit (UFU) is from well to poorly sorted, crudely stratified, richer in lithics and composed of both equidimensional and prolate pumice clasts. The two fall units show slightly different dispersal axis: N90 degrees for the LFU and N95 degrees for the UFU. Volumes calculated with the method of Pyle (1989) are about 8 km (super 3) for the LFU and 7 km (super 3) for the UFU. The maximum height of the eruptive columns are estimated, using the model of the maximum lithic clasts dispersal, at 44 km for the LFU and 40 km for the UFU, classifying both fall units as ultraplinian in character. Reverse size grading within the LFU suggests an increase of the height of the column and magma discharge rate with time. Moderate sorting and crude stratification of the UFU are consistent with short-period oscillation of the column, possibly associated with repeated partial column collapses. Sharp increases in lithic content at the transition to UFU and within the UFU suggest that changes in the eruptive behaviour was produced by a dramatic increase in conduit/vent erosion. The phase of column instability preceded the emplacement of widely dispersed pyroclastic flow. The ultraplinian nature of the fall fits well with the wide dispersal of the Campanian Ignimbrite with an estimated aspect ratio of 3-4X10 (super -4) (LARI). JF - Journal of Volcanology and Geothermal Research AU - Rosi, Mauro AU - Vezzoli, L AU - Castelmenzano, A AU - Grieco, G A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 179 EP - 198 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - Phlegraean Fields KW - igneous rocks KW - plinian-type eruptions KW - Europe KW - Holocene KW - Italy KW - Southern Europe KW - Cenozoic KW - volcanic features KW - dates KW - volcanism KW - Campanian Ignimbrite KW - absolute age KW - Ar/Ar KW - Quaternary KW - ignimbrite KW - Campania Italy KW - calderas KW - pyroclastics KW - magmas KW - eruptions KW - pumice KW - volcanoes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52412773?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Plinian+pumice+fall+deposit+of+the+Campanian+Ignimbrite+eruption+%28Phlegraean+Fields%2C+Italy%29&rft.au=Rosi%2C+Mauro%3BVezzoli%2C+L%3BCastelmenzano%2C+A%3BGrieco%2C+G&rft.aulast=Rosi&rft.aufirst=Mauro&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900035-9 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - absolute age; Ar/Ar; calderas; Campania Italy; Campanian Ignimbrite; Cenozoic; dates; eruptions; Europe; Holocene; igneous rocks; ignimbrite; Italy; magmas; Phlegraean Fields; plinian-type eruptions; pumice; pyroclastics; Quaternary; Southern Europe; volcanic features; volcanic rocks; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(99)00035-9 ER - TY - JOUR T1 - Magnetic modeling of the Phlegraean volcanic district with extension to the Ponza Archipelago, Italy AN - 52412421; 2000-006245 AB - A 3D modeling of the residual aeromagnetic anomalies of the area including the Phlegraean Volcanic District (PVD; Campi Flegrei caldera (CFc), and Ischia and Procida-Vivara islands) and two volcanic islands of the Ponza archipelago (Ventotene and S. Stefano) has been carried out. The observed residual anomalies have been reproduced with several large magnetized bodies located at 2-10 km depth in the crust. A volcanological interpretation has been made possible only for those bodies that have been constrained by geological, geothermal and other geophysical data. The magnetized structures associated with CFc and Ischia, Procida-Vivara, Ventotene and Santo Stefano islands, have been interpreted as igneous bodies that may be solidified intrusions or magma reservoirs. On the basis of magnetic data, volcanological and magmatological history and geothermal heat flux distribution, the existence of a partially solidified magma chamber is suggested at Ischia. A speculation shows that the magnetization intensity assumed for the magnetic bodies located at Procida and south-west of Ventotene matches quite well with the calculated composition of a cooled residual magma resulting from crystallization processes within a chamber. JF - Journal of Volcanology and Geothermal Research AU - Orsi, Giovanna AU - Patella, D AU - Piochi, M AU - Tramacere, A A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 345 EP - 360 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - Phlegraean Fields KW - geophysical surveys KW - three-dimensional models KW - geophysical methods KW - magnetic methods KW - Europe KW - Italy KW - Southern Europe KW - Campania Italy KW - Ponza Archipelago KW - volcanism KW - magmas KW - volcanoes KW - surveys KW - chemical composition KW - crust KW - 20:Applied geophysics KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52412421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Magnetic+modeling+of+the+Phlegraean+volcanic+district+with+extension+to+the+Ponza+Archipelago%2C+Italy&rft.au=Orsi%2C+Giovanna%3BPatella%2C+D%3BPiochi%2C+M%3BTramacere%2C+A&rft.aulast=Orsi&rft.aufirst=Giovanna&rft.date=1999-08-01&rft.volume=38&rft.issue=1&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 82 N1 - Document feature - illus. incl. 2 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Campania Italy; chemical composition; crust; Europe; geophysical methods; geophysical surveys; Italy; magmas; magnetic methods; Phlegraean Fields; Ponza Archipelago; Southern Europe; surveys; three-dimensional models; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(99)00043-8 ER - TY - JOUR T1 - Chemical and Sr-isotopical evolution of the Phlegraean magmatic system before the Campanian Ignimbrite and the Neapolitan Yellow Tuff eruptions AN - 52412365; 2000-006235 AB - New geochronological, geochemical, and Sr-isotopic data on volcanics erupted before the Campanian Ignimbrite (CI, 37 ka) and the Neapolitan Yellow Tuff (NYT, 12 ka) caldera-forming eruptions at Campi Flegrei (CF) have allowed us to investigate the behavior and temporal evolution of the Phlegraean magmatic system. The most prominent feature of the CF magmatic system was the existence of a large, trachytic magma chamber, episodically recharged, which fed eruptions for tens of thousands years before the CI and NYT eruptions. During the pre-CI caldera activity, magmas were episodically erupted from vents located outside the present caldera structure. These magmas ranged in composition from trachyte to alkali-trachyte, with Sr-isotope ratios increasing through time, and becoming identical to that of the CI magma, at about 44 ka ago. This suggests that the Phlegraean magmatic system before the CI eruption was acting as an open system. It was being progressively replenished by new batches of magma that mixed with the resident less radiogenic, fractionating trachytic magmas and was periodically tapped. The magma chamber evolution culminated in the catastrophic eruption of the voluminous (150 km (super 3) DRE), chemically and isotopically zoned CI trachytic magmas, and in the resultant CI caldera formation. Subsequent to the CI eruption, during a period of moderate subaereal volcanic activity of about 20 ka duration, magmas predominantly trachytic to alkali-trachytic in composition and isotopically similar to the last emitted CI magma were erupted from vents located inside the CI caldera. The temporal trend shown by Sr-isotope ratios provides evidence for a new input of alkali-trachytic magma, at ca. 15 ka, with (super 87) Sr/ (super 86) Sr ratio identical to that of the alkali-trachytic magma feeding the first phase of the NYT eruption. These data testify to the arrival in a short time span of a new trachytic to alkali-trachytic magma in the system, isotopically distinct from the CI magma, that gave rise about 3 ka later to eruption of the NYT (40 km (super 3) DRE). JF - Journal of Volcanology and Geothermal Research AU - Pappalardo, L AU - Civetta, Lucia AU - D'Antonio, M AU - Deino, A AU - Di Vito, M A AU - Orsi, Giovanna AU - Carandente, A AU - De Vita, S AU - Isaia, R AU - Piochi, M A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 141 EP - 166 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - Phlegraean Fields KW - isotopes KW - igneous rocks KW - Europe KW - Holocene KW - stable isotopes KW - Italy KW - Southern Europe KW - upper Pleistocene KW - Cenozoic KW - Ar-40/Ar-39 KW - volcanic features KW - radioactive isotopes KW - sampling KW - volcanism KW - noble gases KW - Campanian Ignimbrite KW - tuff KW - shield volcanoes KW - geochemistry KW - alkaline earth metals KW - Quaternary KW - isotope ratios KW - ignimbrite KW - Neapolitan Yellow Tuff KW - Campania Italy KW - argon KW - calderas KW - Sr-87/Sr-86 KW - pyroclastics KW - metals KW - magmas KW - eruptions KW - volcanoes KW - Pleistocene KW - strontium KW - magma chambers KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52412365?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Chemical+and+Sr-isotopical+evolution+of+the+Phlegraean+magmatic+system+before+the+Campanian+Ignimbrite+and+the+Neapolitan+Yellow+Tuff+eruptions&rft.au=Pappalardo%2C+L%3BCivetta%2C+Lucia%3BD%27Antonio%2C+M%3BDeino%2C+A%3BDi+Vito%2C+M+A%3BOrsi%2C+Giovanna%3BCarandente%2C+A%3BDe+Vita%2C+S%3BIsaia%2C+R%3BPiochi%2C+M&rft.aulast=Pappalardo&rft.aufirst=L&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900033-5 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 66 N1 - Document feature - illus. incl. strat. cols., 4 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Ar-40/Ar-39; argon; calderas; Campania Italy; Campanian Ignimbrite; Cenozoic; eruptions; Europe; geochemistry; Holocene; igneous rocks; ignimbrite; isotope ratios; isotopes; Italy; magma chambers; magmas; metals; Neapolitan Yellow Tuff; noble gases; Phlegraean Fields; Pleistocene; pyroclastics; Quaternary; radioactive isotopes; sampling; shield volcanoes; Southern Europe; Sr-87/Sr-86; stable isotopes; strontium; tuff; upper Pleistocene; volcanic features; volcanic rocks; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(99)00033-5 ER - TY - JOUR T1 - Volcanism in the Campi Flegrei AN - 52412344; 2000-006233 JF - Journal of Volcanology and Geothermal Research A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 121 EP - 472 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - Phlegraean Fields KW - igneous rocks KW - Europe KW - Italy KW - Southern Europe KW - Campania Italy KW - pyroclastics KW - volcanism KW - magmas KW - eruptions KW - volcanoes KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52412344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1999-08-01&rft.volume=&rft.issue=&rft.spage=121&rft.isbn=&rft.btitle=Volcanism+in+the+Campi+Flegrei&rft.title=Volcanism+in+the+Campi+Flegrei&rft.issn=03770273&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Campania Italy; eruptions; Europe; igneous rocks; Italy; magmas; Phlegraean Fields; pyroclastics; Southern Europe; volcanic rocks; volcanism; volcanoes ER - TY - JOUR T1 - Short-term ground deformations and seismicity in the resurgent Campi Flegrei Caldera (Italy); an example of active block-resurgence in a densely populated area AN - 52412230; 2000-006248 AB - The Campi Flegrei caldera is a complex structure in which resurgence occurs through a simple shearing mechanism. The most uplifted block inside the caldera is the La Starza block. The caldera has shown signs of unrest since 1969 with two bradyseismic events which generated a net vertical ground displacement of 3.5 m around the town of Pozzuoli. The first event occurred between 1969 and 1972, when the ground was uplifted of 1.74 m, while the second took place between 1982 and 1984 and produced a vertical displacement of 1.79 m. These events have been followed by subsidence with small uplifts of few centimeters. Uplifting events, despite the amount of ground displacement, are always accompanied by seismicity which is absent during subsidence. We have performed an analysis of the ground deformation and seismic data collected since 1970. The results obtained on the two independent sets of data are very much concordant. The ground deformation is not quasi bell-shaped as previously suggested, instead its geometry is strongly constrained by structural discontinuities. Seismicity is confined in a rectangular area, NE-SW elongated and centered on the La Starza block. The margins of this area are marked by earthquakes whose hypocenters describe vertical planes which reach depths of about 5 km. The hypocenters of the earthquakes located in the La Starza block are shallower than 3 km. Focal mechanisms of the earthquakes whose hypocenters describe a NNW-SSE fault plane in the Pozzuoli bay show reverse fault solutions, while those of the earthquakes located on the opposite side of the La Starza block show normal fault solutions. All these data well constraints the hypothesis that resurgence occurs through a simple shearing mechanism (Orsi et al., 1996). We have also performed a finite elements modeling of the ground deformation data. This modeling shows that the detected deformation can be accounted for by an overpressure of 75 MPa in a source with a radius of 1 km, located at 5 km depth in a medium characterized by the detected structural discontinuities. JF - Journal of Volcanology and Geothermal Research AU - Orsi, Giovanna AU - Civetta, Lucia AU - Del Gaudio, C AU - De Vita, S AU - Di Vito, M A AU - Isaia, R AU - Petrazzuoli, S M AU - Ricciardi, G P AU - Ricco, C A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 415 EP - 451 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - Phlegraean Fields KW - geophysical surveys KW - geologic hazards KW - geophysical methods KW - Europe KW - deformation KW - Italy KW - urban environment KW - Southern Europe KW - seismic methods KW - geometry KW - Campania Italy KW - calderas KW - volcanic features KW - safety KW - discontinuities KW - seismicity KW - volcanism KW - surveys KW - focus KW - tectonics KW - induced earthquakes KW - earthquakes KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52412230?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Short-term+ground+deformations+and+seismicity+in+the+resurgent+Campi+Flegrei+Caldera+%28Italy%29%3B+an+example+of+active+block-resurgence+in+a+densely+populated+area&rft.au=Orsi%2C+Giovanna%3BCivetta%2C+Lucia%3BDel+Gaudio%2C+C%3BDe+Vita%2C+S%3BDi+Vito%2C+M+A%3BIsaia%2C+R%3BPetrazzuoli%2C+S+M%3BRicciardi%2C+G+P%3BRicco%2C+C&rft.aulast=Orsi&rft.aufirst=Giovanna&rft.date=1999-08-01&rft.volume=21&rft.issue=&rft.spage=A91&rft.isbn=&rft.btitle=&rft.title=Program+with+Abstracts+-+Geological+Association+of+Canada%3B+Mineralogical+Association+of+Canada%3A+Joint+Annual+Meeting&rft.issn=07018738&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 83 N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - calderas; Campania Italy; deformation; discontinuities; earthquakes; Europe; focus; geologic hazards; geometry; geophysical methods; geophysical surveys; induced earthquakes; Italy; Phlegraean Fields; safety; seismic methods; seismicity; Southern Europe; surveys; tectonics; urban environment; volcanic features; volcanism DO - http://dx.doi.org/10.1016/S0377-0273(99)00050-5 ER - TY - JOUR T1 - The Agnano-Monte Spina eruption (4100 years BP) in the restless Campi Flegrei Caldera (Italy) AN - 52411005; 2000-006241 AB - The Agnano-Monte Spina tephra (AMST), dated at 4100 years BP by (super 40) Ar/ (super 39) Ar and (super 14) C AMS techniques, is the product of the highest-magnitude eruption in the Campi Flegrei caldera (CFc) during its last epoch of activity (4800-3800 years BP). The sequence alternates magmatic and phreatomagmatic pyroclastic-fallout, -flow and -surge beds and bedsets. Two main pumice-fallout deposits with variable easterly-to-northeasterly dispersal axes are about 10 cm thick at 42 km from the vent area. High particle concentration pyroclastic currents were confined to the caldera depression; lower concentration flows overtopped the morphological boundary of the caldera and traveled at least 15 km over the surrounding plain. The unit is subdivided into six members, named A through F in stratigraphic sequence, based upon their sedimentological characteristics. Isopachs and isopleths maps suggest a vent location in the Agnano plain. A volcano-tectonic collapse begun during the course of the eruption, took place along the faults of the northeastern sector of the resurgent block within the CFc, and generated the Agnano plain. The early erupted trachytic magma had a homogeneous alkali-trachytic composition, whereas later-erupted magma shows small-scale heterogeneities. Trace elements and Sr-isotope compositions, indicate that two isotopically distinct magmas, one alkali-trachytic and the other trachytic, were tapped and partially mixed during the eruption. The small volume (1.2 km (super 3) DRE) of erupted magma and the structural position of the vent suggest that the eruption was fed by a dyke intruded along a normal fault in the sector of the resurgent block under a tensional stress regime. JF - Journal of Volcanology and Geothermal Research AU - De Vita, S AU - Orsi, Giovanna AU - Civetta, Lucia AU - Carandente, A AU - D'Antonio, M AU - Deino, A AU - Di Cesare, T AU - Di Vito, M A AU - Fisher, R V AU - Isaia, R AU - Marotta, E AU - Necco, A AU - Ort, Michael H AU - Pappalardo, L AU - Piochi, M AU - Southon, J A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 269 EP - 301 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - Agnano Plain KW - Phlegraean Fields KW - isotopes KW - Europe KW - Holocene KW - Italy KW - Southern Europe KW - Cenozoic KW - volcanic features KW - radioactive isotopes KW - mineral composition KW - dates KW - volcanism KW - normal faults KW - carbon KW - absolute age KW - trace elements KW - geochemistry KW - faults KW - Ar/Ar KW - Quaternary KW - Campania Italy KW - calderas KW - magmas KW - eruptions KW - volcanoes KW - C-14 KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52411005?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=The+Agnano-Monte+Spina+eruption+%284100+years+BP%29+in+the+restless+Campi+Flegrei+Caldera+%28Italy%29&rft.au=De+Vita%2C+S%3BOrsi%2C+Giovanna%3BCivetta%2C+Lucia%3BCarandente%2C+A%3BD%27Antonio%2C+M%3BDeino%2C+A%3BDi+Cesare%2C+T%3BDi+Vito%2C+M+A%3BFisher%2C+R+V%3BIsaia%2C+R%3BMarotta%2C+E%3BNecco%2C+A%3BOrt%2C+Michael+H%3BPappalardo%2C+L%3BPiochi%2C+M%3BSouthon%2C+J&rft.aulast=De+Vita&rft.aufirst=S&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=269&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900039-6 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 63 N1 - Document feature - illus. incl. strat. cols., 6 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - absolute age; Agnano Plain; Ar/Ar; C-14; calderas; Campania Italy; carbon; Cenozoic; dates; eruptions; Europe; faults; geochemistry; Holocene; isotopes; Italy; magmas; mineral composition; normal faults; Phlegraean Fields; Quaternary; radioactive isotopes; Southern Europe; trace elements; volcanic features; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(99)00039-6 ER - TY - JOUR T1 - Volcanism and deformation since 12,000 years at the Campi Flegrei caldera (Italy) AN - 52410967; 2000-006239 AB - The Campi Flegrei caldera is a restless, nested structure resulting from two major collapses related to the Campanian Ignimbrite (37,000 years BP) and the Neapolitan Yellow Tuff (12,000 years BP) eruptions, respectively. Detailed stratigraphical, structural, volcanological and (super 14) C (AMS) geochronological studies, devoted to the reconstruction of the volcanic and deformational history of the Campi Flegrei caldera in the past 12,000 years have been carried out. The results of these studies show that in this time span, intense both volcanic and volcano-tectonic activity was confined inside the Neapolitan Yellow Tuff caldera. Volcanism was concentrated in epochs of intense activity, alternating to periods of quiescence. The I epoch lasted from 12,000 to 9500 years BP giving rise to 34 explosive eruptions, each every 70 years on average. During the II epoch, dated between 8600 and 8200 years BP, six explosive eruptions took place at an average interval of 65 years. The III epoch lasted from 4800 to 3800 years BP and produced 16 explosive and four effusive eruptions which followed each other at mean intervals of 50 years. Eruption vents of the I epoch were located mostly along the marginal faults of the Neapolitan Yellow Tuff caldera, while those of the II epoch aligned on the northeastern sector of this margin. During the III epoch volcanism was confined in the northeastern sector of the Neapolitan Yellow Tuff caldera floor. The caldera floor is disjointed in blocks with variable vertical movements by fault and fracture systems mainly trending NE-SW and NW-SE. The still active resurgence of the caldera floor began soon after its collapse. Onset of both II and III epoch of activity coincides with increase in resurgence rate of La Starza marine terrace, the most uplifted part of the resurgent block. JF - Journal of Volcanology and Geothermal Research AU - Di Vito, M A AU - Isaia, R AU - Orsi, Giovanna AU - Southon, J AU - De Vita, S AU - D'Antonio, M AU - Pappalardo, L AU - Piochi, M A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 221 EP - 246 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - Phlegraean Fields KW - isotopes KW - igneous rocks KW - uplifts KW - Europe KW - Holocene KW - Italy KW - Southern Europe KW - Cenozoic KW - volcanic features KW - radioactive isotopes KW - dates KW - volcanism KW - carbon KW - absolute age KW - tuff KW - tectonics KW - geochemistry KW - Quaternary KW - chronostratigraphy KW - deformation KW - Campania Italy KW - calderas KW - pyroclastics KW - eruptions KW - Pleistocene KW - C-14 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52410967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Volcanism+and+deformation+since+12%2C000+years+at+the+Campi+Flegrei+caldera+%28Italy%29&rft.au=Di+Vito%2C+M+A%3BIsaia%2C+R%3BOrsi%2C+Giovanna%3BSouthon%2C+J%3BDe+Vita%2C+S%3BD%27Antonio%2C+M%3BPappalardo%2C+L%3BPiochi%2C+M&rft.aulast=Di+Vito&rft.aufirst=M&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900037-2 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 3 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - absolute age; C-14; calderas; Campania Italy; carbon; Cenozoic; chronostratigraphy; dates; deformation; eruptions; Europe; geochemistry; Holocene; igneous rocks; isotopes; Italy; Phlegraean Fields; Pleistocene; pyroclastics; Quaternary; radioactive isotopes; Southern Europe; tectonics; tuff; uplifts; volcanic features; volcanic rocks; volcanism DO - http://dx.doi.org/10.1016/S0377-0273(99)00037-2 ER - TY - JOUR T1 - Thermal evolution of the Phlegraean magmatic system AN - 52410592; 2000-006247 AB - A series of 2-D conductive/convective numerical models show a rather limited range of possible magma chamber configurations that predict the present thermal regime at Campi Flegrei. These models are calculated by HEAT, which allows continuous adjustment of heterogeneous rock properties, magma injection/replenishment, and convective regimes. The basic test of each model is how well it reproduces the measured thermal gradients in boreholes at Licola, San Vito, and Mofete reported by AGIP in 1987. The initial and boundary conditions for each model consists of a general crustal structure determined by geology and geophysics and major magmatic events: (1) the 37 ka Campanian Ignimbrite; (2) smaller volume 37-16 ka eruptions; (3) the 12 ka Neapolitan Yellow Tuff; (4) recent magmatism (e.g., Minopoli at approximately 10 ka and Monte Nuovo in 1538 AD). While magma chamber depth is well constrained, magma chamber diameter, shape, volume, and peripheral convective regimes are poorly known. Magma chamber volumes between 200 and 2000 km (super 3) have been investigated with cylindrical, conical (funnel-shaped), and spheroidal shapes. For all reasonable models, a convective zone, developed above the magma chambers after caldera collapse, is necessary to achieve the high gradients seen today. These models should help us understand recent bradyseismic events and future unrest. JF - Journal of Volcanology and Geothermal Research AU - Wohletz, Kenneth AU - Civetta, Lucia AU - Orsi, Giovanna A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 381 EP - 414 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - Phlegraean Fields KW - igneous rocks KW - fumaroles KW - Europe KW - thermal history KW - Italy KW - Southern Europe KW - upper Pleistocene KW - Cenozoic KW - volcanic features KW - volcanism KW - heat flow KW - Campanian Ignimbrite KW - geothermal gradient KW - geochemistry KW - Quaternary KW - numerical models KW - ignimbrite KW - Neapolitan Yellow Tuff KW - two-dimensional models KW - Campania Italy KW - models KW - calderas KW - pyroclastics KW - boreholes KW - magmas KW - eruptions KW - Pleistocene KW - magma chambers KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52410592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Thermal+evolution+of+the+Phlegraean+magmatic+system&rft.au=Wohletz%2C+Kenneth%3BCivetta%2C+Lucia%3BOrsi%2C+Giovanna&rft.aulast=Wohletz&rft.aufirst=Kenneth&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900048-7 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 91 N1 - Document feature - illus. incl. geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - boreholes; calderas; Campania Italy; Campanian Ignimbrite; Cenozoic; eruptions; Europe; fumaroles; geochemistry; geothermal gradient; heat flow; igneous rocks; ignimbrite; Italy; magma chambers; magmas; models; Neapolitan Yellow Tuff; numerical models; Phlegraean Fields; Pleistocene; pyroclastics; Quaternary; Southern Europe; thermal history; two-dimensional models; upper Pleistocene; volcanic features; volcanic rocks; volcanism DO - http://dx.doi.org/10.1016/S0377-0273(99)00048-7 ER - TY - JOUR T1 - Depositional mechanisms and alteration processes in different types of pyroclastic deposits from Campi Flegrei volcanic field (southern Italy) AN - 52410565; 2000-006242 AB - The Campi Flegrei volcanic field, Southern Italy, is composed of a large variety of pyroclastic deposits related to both magmatic and hydromagmatic activity. In spite of similarities of composition, grain size, age and pre-eruptive environment, the various deposits exhibit great differences in terms of degree and type of alteration of the juvenile components. In particular, detailed analyses of pyroclasts collected in the numerous monogenetic volcanic cones show the broad range of alteration, from fresh glass to complete replacement of the glass by the zeolites. The comparative analysis of 17 different deposits has allowed us to conclude that the eruptive and emplacement conditions were the major controls on the zeolitization processes. The relationships between volcanological features of deposits and secondary mineralization are consistent with the glass-fluid phase reaction in a near-closed post-depositional system. Eruptions characterised by separation of water vapour from the pyroclastic particles produce unaltered or poorly altered deposits. In contrast, eruptions characterised by mechanisms that permit the capture and retention of pore water and water vapour produce zeolitized deposits. According to these lines of evidence the zeolitization of pyroclastic products of Campi Flegrei took place immediately after emplacement, during the cooling of wet deposits. Abstract Copyright (1999) Elsevier, B.V. JF - Journal of Volcanology and Geothermal Research AU - de' Gennaro, M AU - Incoronato, A AU - Mastrolorenzo, G AU - Adabbo, M AU - Spina, G Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 303 EP - 320 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - zeolitization KW - alteration KW - volcanic rocks KW - Phlegraean Fields KW - glasses KW - igneous rocks KW - microstructure KW - Europe KW - metasomatism KW - Holocene KW - Italy KW - Southern Europe KW - Cenozoic KW - dates KW - volcanism KW - absolute age KW - chemical composition KW - Quaternary KW - grain size KW - Campania Italy KW - pyroclastics KW - ash KW - K/Ar KW - deposition KW - volcanoes KW - Pleistocene KW - petrography KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52410565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Depositional+mechanisms+and+alteration+processes+in+different+types+of+pyroclastic+deposits+from+Campi+Flegrei+volcanic+field+%28southern+Italy%29&rft.au=de%27+Gennaro%2C+M%3BIncoronato%2C+A%3BMastrolorenzo%2C+G%3BAdabbo%2C+M%3BSpina%2C+G&rft.aulast=de%27+Gennaro&rft.aufirst=M&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900040-2 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 73 N1 - Document feature - illus. incl. 2 tables, geol. sketch maps N1 - Last updated - 2014-03-14 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - absolute age; alteration; ash; Campania Italy; Cenozoic; chemical composition; dates; deposition; Europe; glasses; grain size; Holocene; igneous rocks; Italy; K/Ar; metasomatism; microstructure; petrography; Phlegraean Fields; Pleistocene; pyroclastics; Quaternary; Southern Europe; volcanic rocks; volcanism; volcanoes; zeolitization DO - http://dx.doi.org/10.1016/S0377-0273(99)00040-2 ER - TY - JOUR T1 - Origin of magmas feeding the Plinian phase of the Campanian Ignimbrite eruption, Phlegrean Fields (Italy); constraints based on matrix-glass and glass-inclusion compositions AN - 52409654; 2000-006238 AB - Glass inclusions hosted by clinopyroxene and matrix glasses of pumices from the Plinian fall deposit associated with the Campanian Ignimbrite eruption were analysed in order to investigate processes that occurred at various stages of the magmatic evolution and to characterise the magma-withdrawal dynamics during the eruption. Petrographic, SEM-EDS, and electron microprobe analyses were performed on pumice samples, glass inclusions, and host minerals. Primary non-evolved glass inclusions were found both in homogeneous salite and in zoned diopside-salite clinopyroxenes. All the studied glasses are peralkaline alkali-trachytic in composition. The variation trends of glass inclusions and matrix glasses overlap for most elements except for alkalies and Cl. The least evolved compositions, however, are shown by glass inclusions found in salitic clinopyroxene at interfaces with diopside from the early erupted Plinian pumices (Lower Fall), whereas the most evolved compositions were found in the matrix glasses of the late-erupted Plinian pumices (Upper Fall). Excluding the most mafic glass inclusions, the observed compositional range is closely comparable to the range for ignimbrite juvenile clast compositions, indicating that the two eruptive phases drained the same magmatic reservoir. The compositional evolution of the Campanian Ignimbrite magmatic system seems to have resulted from different processes occurring at different stages: pre-eruptive magma mixing, due to an input of mafic magma into the reservoir, and crystal fractionation starting from different hybrid parental magmas to produce the most evolved compositions. These processes could have generated a vertically and laterally zoned magma chamber with multiple layers of variably hybrid magma extending from the input points of mafic magma. This type of zoning seems to better account for all the complex chemical and mineralogical characteristics of the Campanian Ignimbrite magmatic system, instead of a simple vertically zoned magmatic reservoir. A syn-eruptive mingling between the least evolved hybrid magmas and the most evolved melts characterised the first phase of Plinian eruption. This uncommon emptying of the magma chamber could be explained by the particular geometry of the reservoir. JF - Journal of Volcanology and Geothermal Research AU - Signorelli, Stefano AU - Vaggelli, Gloria AU - Francalanci, Lorella AU - Rosi, Mauro A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 199 EP - 220 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - Phlegraean Fields KW - ignimbrite KW - igneous rocks KW - plinian-type eruptions KW - Europe KW - Italy KW - Southern Europe KW - Campania Italy KW - mineral inclusions KW - pyroclastics KW - provenance KW - mineral composition KW - volcanism KW - magmas KW - eruptions KW - inclusions KW - Campanian Ignimbrite KW - volcanoes KW - petrography KW - Asia KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52409654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Origin+of+magmas+feeding+the+Plinian+phase+of+the+Campanian+Ignimbrite+eruption%2C+Phlegrean+Fields+%28Italy%29%3B+constraints+based+on+matrix-glass+and+glass-inclusion+compositions&rft.au=Signorelli%2C+Stefano%3BVaggelli%2C+Gloria%3BFrancalanci%2C+Lorella%3BRosi%2C+Mauro&rft.aulast=Signorelli&rft.aufirst=Stefano&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=199&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900036-0 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 62 N1 - Document feature - illus. incl. 5 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Asia; Campania Italy; Campanian Ignimbrite; eruptions; Europe; igneous rocks; ignimbrite; inclusions; Italy; magmas; mineral composition; mineral inclusions; petrography; Phlegraean Fields; plinian-type eruptions; provenance; pyroclastics; Southern Europe; volcanic rocks; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(99)00036-0 ER - TY - JOUR T1 - Mechanical and thermo-fluid behaviour during unrest at the Campi Flegrei Caldera (Italy) AN - 52409294; 2000-006249 AB - The Campi Flegrei caldera (CFc) is a resurgent, nested structure resulting from the two main collapses of the Campanian Ignimbrite (37 ka) and the Neapolitan Yellow Tuff (12 ka) eruptions. While the whole structure is affected by a broad subsidence, ongoing local resurgence and unrest occur inside the young, nested caldera structure. The caldera has shown signs of unrest during the past 30 years, with two uplift events that have generated a net displacement of 3.5 m, each followed by subsidence. The time evolution of both ground deformation and seismicity recorded in Campi Flegrei in the last 30 years (since 1969 up to the present) shows aspects not completely explainable by means of mechanical models. In particular, the occurrence of an intense seismic activity during uplift and its absence during subsidence lead us to infer that these two phases might be related to two variable mechanisms. The large amount of magma and the shallow convective fluids circulation needed to explain the very high temperature gradient (100 degrees C/km) measured also in marginal areas of the caldera, suggest the presence of a thermo-dynamical system in supercritical conditions. We have carried out an analysis of the unrest episodes by means of 3D finite-element method, simulating the mechanical and fluid-dynamical response of a two phase medium (solid-fluid) to a sudden (stepwise) pressure or volume increase at a depth of 4 km. According to geological and geophysical constraints, in our scheme we have subdivided the caldera floor into a central and a peripheral zone. The central zone represents the resurgent block and has high permeability, while the peripheral zone is less permeable. We have performed a parametric analysis assuming both Young modulus and permeability of each zone as variables. The basic test for each solution was how well it simulates the time evolution of ground deformation during the last unrest episode (1982-1984). The results obtained clearly show that fluids diffusion accounts for some peculiar features of the ground deformation such as the variable behavior between the resurgent block and the peripheral part of the caldera floor. Subsidence is explained in terms of lateral diffusion of fluids instead of a regression of source processes. Consequently, no variation of shear stress occurs during this phase, providing a physical explanation to the absence of seismicity. JF - Journal of Volcanology and Geothermal Research AU - Orsi, Giovanna AU - Petrazzuoli, S M AU - Wohletz, Kenneth A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 453 EP - 470 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - Phlegraean Fields KW - geophysical surveys KW - Europe KW - fluid dynamics KW - Holocene KW - Italy KW - temperature KW - Southern Europe KW - upper Pleistocene KW - Cenozoic KW - finite element analysis KW - volcanic features KW - seismicity KW - tectonics KW - faults KW - Quaternary KW - three-dimensional models KW - Neapolitan Yellow Tuff KW - magmatism KW - statistical analysis KW - geophysical methods KW - seismic methods KW - Campania Italy KW - calderas KW - magmas KW - eruptions KW - surveys KW - Pleistocene KW - magma chambers KW - high temperature KW - 20:Applied geophysics KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52409294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Mechanical+and+thermo-fluid+behaviour+during+unrest+at+the+Campi+Flegrei+Caldera+%28Italy%29&rft.au=Orsi%2C+Giovanna%3BPetrazzuoli%2C+S+M%3BWohletz%2C+Kenneth&rft.aulast=Orsi&rft.aufirst=Giovanna&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=453&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900051-7 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - calderas; Campania Italy; Cenozoic; eruptions; Europe; faults; finite element analysis; fluid dynamics; geophysical methods; geophysical surveys; high temperature; Holocene; Italy; magma chambers; magmas; magmatism; Neapolitan Yellow Tuff; Phlegraean Fields; Pleistocene; Quaternary; seismic methods; seismicity; Southern Europe; statistical analysis; surveys; tectonics; temperature; three-dimensional models; upper Pleistocene; volcanic features DO - http://dx.doi.org/10.1016/S0377-0273(99)00051-7 ER - TY - JOUR T1 - Chemical and isotopic compositions of minerals and waters from the Campi Flegrei volcanic system, Naples, Italy AN - 52409257; 2000-006244 AB - Based on their delta (super 34) S signature, sulfate minerals and native sulfur around fumaroles and hot water pools from the Campi Flegrei volcanic area derive from supergenic oxidation of volcanic H (sub 2) S. Their mean delta (super 34) S value (-0.2+ or -1.7 per mil) matches with that of fumarolic H (sub 2) S at Solfatara (-0.3+ or -0.3 per mil), as well as with the delta (super 34) S of +1.4 per mil obtained for total sulfur in fresh trachyte from the area. All delta (super 34) S values indicate a mostly deep-seated origin for sulfur. Thermal waters were analysed for major and minor chemistry and for oxygen, hydrogen and sulfur isotope compositions. Pools at Pisciarelli are filled with evaporated meteoric water heated by rising (magmatic) gases. The water delta (super 18) O (+3.8+ or -1.3 per mil) and delta (super 2) H (+6.5+ or -2.2 per mil) values in these steam-heated waters are controlled by mixing and evaporation effects, and the delta (super 34) S value of dissolved sulfate (-1.3+ or -0.3 per mil) basically agrees with supergenic oxidation of deep-seated H (sub 2) S as the major source of sulfur. Instead, water from thermal springs and wells elsewhere in the Campi Flegrei appears to be a mixture between dilute meteoric and saline marine components. The latter may be local seawater from the bay of Pozzuoli. The delta (super 18) O and delta (super 2) H values of waters sampled during 1993-1994 range from -5.6 to +0.3 per mil and from -33 to -3.4 per mil, respectively. The delta (super 34) S values of dissolved sulfate range between -0.1 and +19.5 per mil. In general, sulfate is probably derived essentially from two sources, both within the volcanic cover, i.e., oxidation/dissolution of pyrite and anhydrite, and marine water. An occasional source of water and sulfate is represented by (magmatic) gases, which directly interact with shallow meteoric water as in the case of the Hotel Tennis well yielding steam-heated water with delta (super 18) O = -1.5+ or -0.2 per mil, delta (super 2) H = -17+ or -1 per mil and delta (super 34) S = -0.1 per mil. JF - Journal of Volcanology and Geothermal Research AU - Valentino, G M AU - Cortecci, G AU - Franco, E AU - Stanzione, D A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 329 EP - 344 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - Naples Italy KW - Phlegraean Fields KW - oxygen KW - isotopes KW - fumaroles KW - Europe KW - crystal structure KW - stable isotopes KW - Italy KW - Southern Europe KW - volcanism KW - mineralization KW - chemical composition KW - geochemistry KW - meteoric water KW - sulfates KW - isotope ratios KW - O-18/O-16 KW - hydrochemistry KW - thermal waters KW - Campania Italy KW - S-34/S-32 KW - magmas KW - volcanoes KW - sulfur KW - 05A:Igneous and metamorphic petrology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52409257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Chemical+and+isotopic+compositions+of+minerals+and+waters+from+the+Campi+Flegrei+volcanic+system%2C+Naples%2C+Italy&rft.au=Valentino%2C+G+M%3BCortecci%2C+G%3BFranco%2C+E%3BStanzione%2C+D&rft.aulast=Valentino&rft.aufirst=G&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900042-6 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 66 N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Campania Italy; chemical composition; crystal structure; Europe; fumaroles; geochemistry; hydrochemistry; isotope ratios; isotopes; Italy; magmas; meteoric water; mineralization; Naples Italy; O-18/O-16; oxygen; Phlegraean Fields; S-34/S-32; Southern Europe; stable isotopes; sulfates; sulfur; thermal waters; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(99)00042-6 ER - TY - JOUR T1 - Hydrogen, oxygen and carbon isotope ratios of Solfatara fumaroles (Phlegrean Fields, Italy); further insight into source processes AN - 52409214; 2000-006243 AB - New isotopic values for delta D and delta (super 18) O (H (sub 2) O), delta (super 13) C (CO (sub 2) ) and delta D (H (sub 2) ) are combined with chemical and isotope data from the literature to investigate the different fluid sources feeding the biphasic liquid-vapor reservoir underlying the Solfatara crater area. By applying equilibrium treatment to steam isotope data, it has been possible to identify two water components feeding the system: a meteoric end-member, which has been affected by mixing with deuterium and (super 18) O-depleted groundwater, and a magmatic-metamorphic end-member rising from a small magmatic chamber. Comparative analyses of delta D and delta (super 18) O (H (sub 2) O), delta D (H (sub 2) ) values and H (sub 2) /H (sub 2) O ratios suggest that the Solfatara reservoir never attains the reduced conditions typical of other "mature" geothermal systems; the rise of deep oxidized (super 18) O-enriched fluids is simultaneous with maximum ground uplifts and the highest H (sub 2) -H (sub 2) O isotopic geothermometric values. The delta (super 13) C (CO (sub 2) ) values seem to indicate a mixed magmatic-metamorphic origin also for carbon dioxide: the CO (sub 2) magmatic component could be characterized by a low delta (super 13) C, if there were a closed degassed magmatic system underlying the Phlegrean Fields zone. JF - Journal of Volcanology and Geothermal Research AU - Panichi, C AU - Volpi, G A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 321 EP - 328 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - processes KW - Phlegraean Fields KW - oxygen KW - isotopes KW - isotope ratios KW - fumaroles KW - C-13/C-12 KW - solfataras KW - Europe KW - O-18/O-16 KW - equations KW - stable isotopes KW - Italy KW - Southern Europe KW - Campania Italy KW - sampling KW - D/H KW - volcanism KW - magmas KW - hydrogen KW - carbon KW - geochemistry KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52409214?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Hydrogen%2C+oxygen+and+carbon+isotope+ratios+of+Solfatara+fumaroles+%28Phlegrean+Fields%2C+Italy%29%3B+further+insight+into+source+processes&rft.au=Panichi%2C+C%3BVolpi%2C+G&rft.aulast=Panichi&rft.aufirst=C&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=321&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900041-4 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - C-13/C-12; Campania Italy; carbon; D/H; equations; Europe; fumaroles; geochemistry; hydrogen; isotope ratios; isotopes; Italy; magmas; O-18/O-16; oxygen; Phlegraean Fields; processes; sampling; solfataras; Southern Europe; stable isotopes; volcanism DO - http://dx.doi.org/10.1016/S0377-0273(99)00041-4 ER - TY - JOUR T1 - The Campanian Plain and Phlegrean Fields; structural setting from potential field data AN - 52409053; 2000-006246 AB - A boundary analysis of the gravity and magnetic fields of the Phlegrean Fields volcanic area and of the surrounding Campanian Plain reveals a complex structural setting. The Campanian Plain results well defined from sharp density boundaries. A set of major E-W lineaments occurs within the Plain. We derive a framework of the structural control to the volcanological evolution of Campanian Plain, which appears strongly influenced by a set of NE-SW lineaments bordering the Acerra depression. The density and magnetization boundaries of the Phlegrean Fields are significantly consistent, both indicating for the collapsed Phlegrean caldera an area considerably less extended than that based on previous geologically-defined models. Many other structures are evidenced in the Phlegrean area, often with agreement between density and magnetization boundaries. Inside the caldera, a strong consistence between the structures we identified and recent seismicity has been noted. JF - Journal of Volcanology and Geothermal Research AU - Florio, G AU - Fedi, M AU - Cella, F AU - Rapolla, A A2 - Orsi, Giovanna A2 - Civetta, Lucia A2 - Valentine, Greg A. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 361 EP - 379 PB - Elsevier, Amsterdam VL - 91 IS - 2-4 SN - 0377-0273, 0377-0273 KW - lineaments KW - Phlegraean Fields KW - geophysical surveys KW - geophysical methods KW - magnetic methods KW - Europe KW - magnetic field KW - Italy KW - Southern Europe KW - Campania Italy KW - gravity methods KW - gravity anomalies KW - gravity field KW - volcanism KW - surveys KW - Bouguer anomalies KW - tectonics KW - 20:Applied geophysics KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52409053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=The+Campanian+Plain+and+Phlegrean+Fields%3B+structural+setting+from+potential+field+data&rft.au=Florio%2C+G%3BFedi%2C+M%3BCella%2C+F%3BRapolla%2C+A&rft.aulast=Florio&rft.aufirst=G&rft.date=1999-08-01&rft.volume=91&rft.issue=2-4&rft.spage=361&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2899%2900044-X L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2000-01-01 N1 - Number of references - 38 N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Bouguer anomalies; Campania Italy; Europe; geophysical methods; geophysical surveys; gravity anomalies; gravity field; gravity methods; Italy; lineaments; magnetic field; magnetic methods; Phlegraean Fields; Southern Europe; surveys; tectonics; volcanism DO - http://dx.doi.org/10.1016/S0377-0273(99)00044-X ER - TY - JOUR T1 - Status of the contamination in sediments and biota from the western Beaufort Sea (Alaska) AN - 52384347; 2000-019705 JF - Marine Pollution Bulletin AU - Valette-Silver, Nathalie AU - Hameedi, M Jawed AU - Efurd, Deward W AU - Robertson, Andrew Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 702 EP - 722 PB - Pergamon, Oxford-New York VL - 38 IS - 8 SN - 0025-326X, 0025-326X KW - United States KW - sea water KW - isotopes KW - Am-241 KW - environmental analysis KW - bioaccumulation KW - radioactive isotopes KW - cesium KW - arctic environment KW - sediments KW - Arctic Ocean KW - fallout KW - Beaufort Sea KW - concentration KW - monitoring KW - pollutants KW - global KW - arsenic KW - alkali metals KW - pollution KW - biota KW - organic compounds KW - Cs-137 KW - metals KW - marine environment KW - americium KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - coastal environment KW - Alaska KW - trace metals KW - actinides KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52384347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Pollution+Bulletin&rft.atitle=Status+of+the+contamination+in+sediments+and+biota+from+the+western+Beaufort+Sea+%28Alaska%29&rft.au=Valette-Silver%2C+Nathalie%3BHameedi%2C+M+Jawed%3BEfurd%2C+Deward+W%3BRobertson%2C+Andrew&rft.aulast=Valette-Silver&rft.aufirst=Nathalie&rft.date=1999-08-01&rft.volume=38&rft.issue=8&rft.spage=702&rft.isbn=&rft.btitle=&rft.title=Marine+Pollution+Bulletin&rft.issn=0025326X&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0025326X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 153 N1 - Document feature - illus. incl. 11 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MPNBAZ N1 - SubjectsTermNotLitGenreText - actinides; Alaska; alkali metals; Am-241; americium; arctic environment; Arctic Ocean; aromatic hydrocarbons; arsenic; Beaufort Sea; bioaccumulation; biota; cesium; coastal environment; concentration; Cs-137; environmental analysis; fallout; global; hydrocarbons; isotopes; marine environment; metals; monitoring; organic compounds; pollutants; pollution; polycyclic aromatic hydrocarbons; radioactive isotopes; sea water; sediments; trace metals; United States ER - TY - CONF T1 - Sequence, assembly and analysis of pX01 and pX02 AN - 17394164; 4618077 AB - Bacillus anthracis plasmids pX01 and pX02, harboured by the Sterne and Pasteur strains, respectively, have been sequenced by random `shotgun' cloning and high throughout sequence analysis. These sequences have been assembled (Sequencher) to generate a circulate pX01 plasmid containing 181 656 bp and a single linear (gapped) pX02 contig containing at least 93.479bp. Initial annotation suggests that the two plasmids combined contain at least 200 potential open reading frames (ORFs) with < 40% having significant similarity to sequences registered in open databases. Collectively, only 118 566 bp of the pX01 DNA (65%) represent predicted coding regions. This value is similar to published gene densities for other plasmids and is indicative of the larger intergenic spaces in plasmids vs those found in the chromosomes of the parental microbes (85-93% gene density). A 70 kbp region including the toxin genes (cya, lef and pag) is distinct from the remainder of the pX01 sequence: (1) it has a lower gene density (58 vs 70%) than the remaining 111 kbp; (2) it contains all but one of the co-regulated transcriptional fusions identified by transposon mutagenesis (Hoffmaster and Koehler 1997) and (3) it contains a significantly higher proportion of positive BLAST scores (62 vs 20%) for putative ORFs. These data suggest different origins for the two regions of pX01. JF - Journal of Applied Microbiology AU - Okinaka, R AU - Cloud, K AU - Hampton, O AU - Hoffmaster, A AU - Hill, K AU - Keim, P AU - Koehler, T AU - Lamke, G AU - Kumano, S AU - Manter, D AU - Martinez, Y AU - Ricke, D AU - Svensson, R AU - Jackson, P Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 261 EP - 262 PB - Blackwell Science Ltd., Osney Mead Oxford OX2 0EL UK, [URL:http://www.blacksci.co.uk] VL - 87 IS - 2 KW - cya gene KW - lef gene KW - pag gene KW - plasmid pX01 KW - plasmid pX02 KW - Microbiology Abstracts B: Bacteriology KW - Anthrax KW - Assembly KW - Bacillus anthracis KW - Toxins KW - J 02760:Plasmids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17394164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Microbiology&rft.atitle=Sequence%2C+assembly+and+analysis+of+pX01+and+pX02&rft.au=Okinaka%2C+R%3BCloud%2C+K%3BHampton%2C+O%3BHoffmaster%2C+A%3BHill%2C+K%3BKeim%2C+P%3BKoehler%2C+T%3BLamke%2C+G%3BKumano%2C+S%3BManter%2C+D%3BMartinez%2C+Y%3BRicke%2C+D%3BSvensson%2C+R%3BJackson%2C+P&rft.aulast=Okinaka&rft.aufirst=R&rft.date=1999-08-01&rft.volume=87&rft.issue=2&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Microbiology&rft.issn=13645072&rft_id=info:doi/10.1046%2Fj.1365-2672.1999.00883.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1046/j.1365-2672.1999.00883.x ER - TY - CONF T1 - Genetic comparison of Bacillus anthracis and its close relatives using amplified fragment length polymorphism and polymerase chain reaction analysis AN - 17389953; 4618078 AB - Amplified fragment length polymorphism (AFLP) analysis allows a rapid, relatively simple analysis of a large portion of a microbial genome, providing information about the species and its phylogenetic relationship to other microbes (Vos et al. 1995). The method simply surveys the genome for length and sequence polymorphisms. The AFLP pattern identified can be used for comparison to the genomes of other species. Unlike other methods, it does not rely on analysis of a single genetic locus that may bias the interpretation of results and does not require any prior knowledge of the targeted organism. Moreover, a standard set of reagents can be applied to any species without using species-specific information or molecular probes. We are using AFLP analysis to rapidly identify different bacterial species. A comparison of AFLP profiles generated from a large battery of Bacillus anthracis strains shows very little variability among different isolates (Keim et al. 1997). By contrast, there is a significant difference between AFLP profiles generated for any B. anthracis strain and even the most closely related Bacillus species. Sufficient variability is apparent among all known microbial species to allow phylogenetic analysis based on large numbers of genetically unlinked loci. These striking differences among AFLP profiles allow unambiguous identification of previously identified species and phylogenetic placement of newly characterized isolates relative to known species based on a large number of independent genetic loci. Data generated thus far show that the method provides phylogenetic analyses that are consistent with other widely accepted phylogenetic methods. However, AFLP analysis provides a more detailed analysis of the targets and samples a much larger portion of the genome. Consequently, it provides an inexpensive, rapid means of characterizing microbial isolates to further differentiate among strains and closely related microbial species. Such information cannot be rapidly generated by other means. AFLP sample analysis quickly generates a very large amount of molecular information about microbial genomes. However, this information cannot be analysed rapidly using manual methods. We are developing a large archive of electronic AFLP signatures that is being used to identify isolates collected from medical, veterinary, forensic and environmental samples. We are also developing the computational packages necessary to rapidly and unambiguously analyse the AFLP profiles and conduct a phylogenetic comparison of these data relative to information already in our database. We will use this archive and the associated algorithms to determine the species identity of previously uncharacterized isolates and place them phylogenetically relative to other microbes based on their AFLP signatures. This study provides significant new information about microbes with environmental, veterinary and medical significance. This information can be used in further studies to understand the relationships among these species and the factors that distinguish them from one another. It should also allow the identification of unique factors that contribute to important microbial traits, including pathogenicity and virulence. We are also using AFLP data to identify, isolate and sequence DNA fragments that are unique to particular microbial species and strains. The fragment patterns and sequence information provide insights into the complexity and organization of bacterial genomes relative to one another. They also provide the information necessary for the development of species-specific polymerase chain reaction primers that can be used to interrogate complex samples for the presence of B. anthracis, other microbial pathogens or their remnants. JF - Journal of Applied Microbiology AU - Jackson, P J AU - Hill, K K AU - Laker, M T AU - Ticknor, LO AU - Keim, P Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 263 EP - 269 PB - Blackwell Science Ltd., Osney Mead Oxford OX2 0EL UK, [URL:http://www.blacksci.co.uk] VL - 87 IS - 2 KW - genetic analysis KW - amplified fragment length polymorphism KW - Microbiology Abstracts B: Bacteriology KW - Polymerase chain reaction KW - Bacillus anthracis KW - J 02704:Enumeration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17389953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Microbiology&rft.atitle=Genetic+comparison+of+Bacillus+anthracis+and+its+close+relatives+using+amplified+fragment+length+polymorphism+and+polymerase+chain+reaction+analysis&rft.au=Jackson%2C+P+J%3BHill%2C+K+K%3BLaker%2C+M+T%3BTicknor%2C+LO%3BKeim%2C+P&rft.aulast=Jackson&rft.aufirst=P&rft.date=1999-08-01&rft.volume=87&rft.issue=2&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Microbiology&rft.issn=13645072&rft_id=info:doi/10.1046%2Fj.1365-2672.1999.00884.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1046/j.1365-2672.1999.00884.x ER - TY - JOUR T1 - Modulating Dipoles for Structure-Function Correlations in the Gramicidin A Channel AN - 17385372; 4601488 AB - Dipoles of the tryptophan indole side chains have a direct impact on ion conductance in the gramicidin channel. Here, fluorination of the indoles (both 5- and 6-fluoro) is used to manipulate both the orientations and the magnitudes of the dipoles. The orientations and positions with respect to the channel axis were determined using super(2)H solid state NMR of uniformly aligned lipid bilayer preparations. By exchange of the remaining four protons in the indole ring for deuterium, comparison could be made to d sub(5)-indole spectra that have previously been recorded for each of the four indoles of gramicidin A. After making the assignments which were aided by the observation of super(19)F- super(2)H dipolar interactions, we found that fluorination caused only minor changes in side chain conformation. With the high-resolution structural characterization of the fluorinated indoles in position 11, 13, and 15, the electrostatic interactions with a cation at the channel and bilayer center can be predicted and the influence of the modified dipoles on ion conductance estimated. The importance of the long-range electrostatic interaction was recently documented with the observation of alpha -helical dipoles oriented toward the bilayer center on the ion conductance pathway for the Streptomyces K super(+) channel. We present direct measurements of the orientation of gramicidin channel F-Trp positions for use in analysis of dipole effects on channel permeation. JF - Biochemistry (Washington) AU - Cotten, M AU - Tian, C AU - Busath, D D AU - Shirts, R B AU - Cross, T A AD - Center for Interdisciplinary Magnetic Resonance at the National High Magnetic Field Laboratory, Department of Chemistry, and Institute of Molecular Biophysics, Florida State University, Tallahassee, Florida 32310 Y1 - 1999/07/20/ PY - 1999 DA - 1999 Jul 20 SP - 9185 EP - 9197 VL - 38 IS - 29 SN - 0006-2960, 0006-2960 KW - channels KW - gramicidin A KW - Microbiology Abstracts B: Bacteriology KW - Tryptophan KW - Streptomyces KW - J 02781:Biosynthesis and physicochemical properties UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17385372?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry+%28Washington%29&rft.atitle=Modulating+Dipoles+for+Structure-Function+Correlations+in+the+Gramicidin+A+Channel&rft.au=Cotten%2C+M%3BTian%2C+C%3BBusath%2C+D+D%3BShirts%2C+R+B%3BCross%2C+T+A&rft.aulast=Cotten&rft.aufirst=M&rft.date=1999-07-20&rft.volume=38&rft.issue=29&rft.spage=9185&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/10.1021%2Fbi982981m LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptomyces; Tryptophan DO - http://dx.doi.org/10.1021/bi982981m ER - TY - JOUR T1 - Validation of the single-stranded channel conformation of gramicidin A by solid-state NMR AN - 17360267; 4565957 AB - The monovalent cation selective channel formed by a dimer of the polypeptide gramicidin A has a single-stranded, right-handed helical motif with 6.5 residues per turn forming a 4-Aa diameter pore. The structure has been refined to high resolution against 120 orientational constraints obtained from samples in a liquid- crystalline phase lipid bilayer. These structural constraints from solid- state NMR reflect the orientation of spin interaction tensors with respect to a unique molecular axis. Because these tensors are fixed in the molecular frame and because the samples are uniformly aligned with respect to the magnetic field of the NMR spectrometer, each constraint restricts the orientation of internuclear vectors with respect to the laboratory frame of reference. The structural motif of this channel has been validated, and the high-resolution structure has led to precise models for cation binding, cation selectivity, and cation conductance efficiency. The structure is consistent with the electrophysiological data and numerous biophysical studies. Contrary to a recent claim [Burkhart, B. M., Li, N., Langs, D. A., Pangborn, W. A. & Duax, W. L. (1998) Proc. Natl. Acad. Sci. USA 95, 12950-12955], the solid-state NMR constraints for gramicidin A in a lipid bilayer are not consistent with an x-ray crystallographic structure for gramicidin having a double-stranded, right-handed helix with 7.2 residues per turn. JF - Proceedings of the National Academy of Sciences, USA AU - Kovacs, F AU - Quine, J AU - Cross, T A AD - National High Magnetic Field Laboratory, Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306-4005, cross@magnet.fsu.edu Y1 - 1999/07/06/ PY - 1999 DA - 1999 Jul 06 SP - 7910 EP - 7915 VL - 96 IS - 14 SN - 0027-8424, 0027-8424 KW - gramicidin A KW - Microbiology Abstracts B: Bacteriology KW - Protein folding KW - Crystal structure KW - N.M.R. KW - J 02781:Biosynthesis and physicochemical properties UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17360267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.atitle=Validation+of+the+single-stranded+channel+conformation+of+gramicidin+A+by+solid-state+NMR&rft.au=Kovacs%2C+F%3BQuine%2C+J%3BCross%2C+T+A&rft.aulast=Kovacs&rft.aufirst=F&rft.date=1999-07-06&rft.volume=96&rft.issue=14&rft.spage=7910&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.96.14.7910 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Crystal structure; Protein folding; N.M.R. DO - http://dx.doi.org/10.1073/pnas.96.14.7910 ER - TY - JOUR T1 - Metal emissions from Kilauea, and a suggested revision of the estimated worldwide metal output by quiescent degassing of volcanoes AN - 52459560; 1999-049884 AB - Measurements of a large suite of metals (Pb, Cd, Cu, Zn and several others) and sulfur at Kilauea Volcano over an extended period of time has yielded a detailed record of the atmospheric injection of ordinarily-rare metals from this quiescently degassing volcano, representative of an important type. We have combined the Kilauea data with data of recent studies by others (emissions from volcanoes in the Indonesian arc; the large Laki eruption of two centuries ago; Etna; estimates of total volcanic emissions of sulfur) to form the basis for a new working estimate of the rate of worldwide injection of metals to the atmosphere by volcanoes. The new estimate is that volcanoes inject a substantially smaller mass of ordinarily-rare metals into the atmosphere than was stated in a widely cited previous estimate [J. O. Nriagu, A global assessment of natural sources of atmospheric trace metals, Nature 338 (1989) 47-49]. Our estimate, which is an upper limit, is an annual injection mass of about 10,000 tons of the metals considered, versus the earlier estimate of about 23,000 tons. Also, the proportions of the metals are substantially different in our new estimate. JF - Earth and Planetary Science Letters AU - Hinkley, Todd K AU - Lamothe, Paul J AU - Wilson, Stephen A AU - Finnegan, David L AU - Gerlach, Terrence M Y1 - 1999/07// PY - 1999 DA - July 1999 SP - 315 EP - 325 PB - Elsevier, Amsterdam VL - 170 IS - 3 SN - 0012-821X, 0012-821X KW - United States KW - plumes KW - Hawaii Island KW - Hawaii County Hawaii KW - global KW - Hawaii KW - atmosphere KW - East Pacific Ocean Islands KW - correlation KW - metals KW - Oceania KW - volcanoes KW - trace metals KW - Polynesia KW - trace elements KW - Kilauea KW - geochemistry KW - degassing KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52459560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Metal+emissions+from+Kilauea%2C+and+a+suggested+revision+of+the+estimated+worldwide+metal+output+by+quiescent+degassing+of+volcanoes&rft.au=Hinkley%2C+Todd+K%3BLamothe%2C+Paul+J%3BWilson%2C+Stephen+A%3BFinnegan%2C+David+L%3BGerlach%2C+Terrence+M&rft.aulast=Hinkley&rft.aufirst=Todd&rft.date=1999-07-01&rft.volume=170&rft.issue=3&rft.spage=315&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2FS0012-821X%2899%2900103-X L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1999-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - atmosphere; correlation; degassing; East Pacific Ocean Islands; geochemistry; global; Hawaii; Hawaii County Hawaii; Hawaii Island; Kilauea; metals; Oceania; plumes; Polynesia; trace elements; trace metals; United States; volcanoes DO - http://dx.doi.org/10.1016/S0012-821X(99)00103-X ER - TY - JOUR T1 - No ice on the Moon?; discussion and reply AN - 52452415; 1999-055353 JF - Science AU - Eshleman, Von R AU - Parks, George A AU - Feldman, W C AU - Maurice, S AU - Lawrence, D J AU - Barraclough, B L AU - Elphic, R C AU - Binder, Alan B Y1 - 1999/07// PY - 1999 DA - July 1999 SP - 531 EP - 532 PB - American Association for the Advancement of Science, Washington, DC VL - 285 IS - 5427 SN - 0036-8075, 0036-8075 KW - surface properties KW - polar regions KW - Moon KW - ice KW - surface features KW - radar methods KW - insolation KW - Clementine Program KW - mapping KW - remote sensing KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52452415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=No+ice+on+the+Moon%3F%3B+discussion+and+reply&rft.au=Eshleman%2C+Von+R%3BParks%2C+George+A%3BFeldman%2C+W+C%3BMaurice%2C+S%3BLawrence%2C+D+J%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BBinder%2C+Alan+B&rft.aulast=Eshleman&rft.aufirst=Von&rft.date=1999-07-01&rft.volume=285&rft.issue=5427&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 13 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Feldman, W. C., et al., Science, Vol. 281, No. 1496, 1998 N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Clementine Program; ice; insolation; lunar soils; mapping; Moon; polar regions; radar methods; remote sensing; surface features; surface properties ER - TY - JOUR T1 - Modelling alluvial fan morphology AN - 52452280; 1999-051962 JF - Earth Surface Processes and Landforms AU - de Chant, Lawrence J AU - Pease, Patrick P AU - Tchakerian, Vatche P Y1 - 1999/07// PY - 1999 DA - July 1999 SP - 641 EP - 652 PB - Wiley & Sons, Chichester-New York VL - 24 IS - 7 SN - 0197-9337, 0197-9337 KW - United States KW - scale factor KW - quantitative geomorphology KW - unsteady flow KW - sedimentation KW - channels KW - Texas KW - mathematical models KW - New Mexico KW - qualitative analysis KW - fluvial sedimentation KW - Montana KW - models KW - California KW - theoretical studies KW - alluvial fans KW - Arizona KW - Utah KW - geomorphology KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52452280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=In+situ+tritium+production+and+fluid+mean+residence+times+in+the+two+subsystems+of+the+Valles+Caldera+hydrothermal+system%2C+New+Mexico&rft.au=Shevenell%2C+Lisa%3BGoff%2C+Fraser&rft.aulast=Shevenell&rft.aufirst=Lisa&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ L2 - http://www3.interscience.wiley.com/journal/117935722/grouphome/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 28 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ESPRDT N1 - SubjectsTermNotLitGenreText - alluvial fans; Arizona; California; channels; fluvial sedimentation; geomorphology; mathematical models; models; Montana; New Mexico; qualitative analysis; quantitative geomorphology; scale factor; sedimentation; Texas; theoretical studies; United States; unsteady flow; Utah ER - TY - JOUR T1 - Mineral associations and average oxidation states of sorbed Pu on tuff AN - 52277889; 2001-005998 JF - Environmental Science & Technology, ES & T AU - Duff, M C AU - Hunter, D B AU - Triay, I R AU - Bertsch, Paul M AU - Reed, D T AU - Sutton, S R AU - Shea-McCarthy, G AU - Kitten, J AU - Eng, P AU - Chipera, S J AU - Vaniman, D T Y1 - 1999/07// PY - 1999 DA - July 1999 SP - 2163 EP - 2169 PB - American Chemical Society, Washington, DC VL - 33 IS - 13 SN - 0013-936X, 0013-936X KW - silicates KW - sorption KW - volcanic rocks KW - plutonium KW - igneous rocks KW - atmospheric precipitation KW - radioactive waste KW - ground water KW - rancieite KW - transport KW - manganese oxides KW - zeolite group KW - oxides KW - framework silicates KW - tuff KW - mineral assemblages KW - thermodynamic properties KW - pollutants KW - smectite KW - pollution KW - migration of elements KW - equilibrium KW - clay minerals KW - aquifers KW - pyroclastics KW - metals KW - sheet silicates KW - waste disposal KW - actinides KW - SEM data KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52277889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Mineral+associations+and+average+oxidation+states+of+sorbed+Pu+on+tuff&rft.au=Duff%2C+M+C%3BHunter%2C+D+B%3BTriay%2C+I+R%3BBertsch%2C+Paul+M%3BReed%2C+D+T%3BSutton%2C+S+R%3BShea-McCarthy%2C+G%3BKitten%2C+J%3BEng%2C+P%3BChipera%2C+S+J%3BVaniman%2C+D+T&rft.aulast=Duff&rft.aufirst=M&rft.date=1999-07-01&rft.volume=33&rft.issue=13&rft.spage=2163&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 46 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; aquifers; atmospheric precipitation; chemical fractionation; clay minerals; equilibrium; framework silicates; ground water; igneous rocks; manganese oxides; metals; migration of elements; mineral assemblages; oxides; plutonium; pollutants; pollution; pyroclastics; radioactive waste; rancieite; SEM data; sheet silicates; silicates; smectite; sorption; thermodynamic properties; transport; tuff; volcanic rocks; waste disposal; zeolite group ER - TY - JOUR T1 - Solar-proton fluxes from krypton-81 revisited AN - 52256804; 2001-023741 JF - Meteoritics & Planetary Science AU - Reddy, R C AU - Marti, K AU - Lavielle, B AU - Gilabert, E AU - Reimold, Wolf Uwe Y1 - 1999/07// PY - 1999 DA - July 1999 SP - 96 EP - 97 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - Ne-21 KW - isotopes KW - erosion rates KW - protons KW - manganese KW - stable isotopes KW - Mn-53 KW - Cenozoic KW - Al-26 KW - radioactive isotopes KW - dates KW - noble gases KW - neon KW - carbon KW - aluminum KW - absolute age KW - cosmic rays KW - alkaline earth metals KW - Quaternary KW - Be-10 KW - Moon KW - krypton KW - measurement KW - Kr-81 KW - lunar samples KW - metals KW - Pleistocene KW - C-14 KW - particles KW - beryllium KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52256804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Solar-proton+fluxes+from+krypton-81+revisited&rft.au=Reddy%2C+R+C%3BMarti%2C+K%3BLavielle%2C+B%3BGilabert%2C+E%3BReimold%2C+Wolf+Uwe&rft.aulast=Reddy&rft.aufirst=R&rft.date=1999-07-01&rft.volume=34&rft.issue=4%2C+Suppl.&rft.spage=96&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 62nd annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Al-26; alkaline earth metals; aluminum; Be-10; beryllium; C-14; carbon; Cenozoic; cosmic rays; dates; erosion rates; isotopes; Kr-81; krypton; lunar samples; manganese; measurement; metals; Mn-53; Moon; Ne-21; neon; noble gases; particles; Pleistocene; protons; Quaternary; radioactive isotopes; stable isotopes ER - TY - JOUR T1 - Rapid protein-folding assay using green fluorescent protein AN - 17315499; 4577426 AB - Formation of the chromophore of green fluorescent protein (GFP) depends on the correct folding of the protein. We constructed a "folding reporter" vector, in which a test protein is expressed as an N-terminal fusion with GFP. Using a test panel of 20 proteins, we demonstrated that the fluorescence of Escherichia coli cells expressing such GFP fusions is related to the productive folding of the upstream protein domains expressed alone. We used this fluorescent indicator of protein folding to evolve proteins that are normally prone to aggregation during expression in E. coli into closely related proteins that fold robustly and are fully soluble and functional. This approach to improving protein folding does not require functional assays for the protein of interest and provides a simple route to improving protein folding and expression by directed evolution. JF - Nature Biotechnology AU - Waldo, G S AU - Standish, B M AU - Berendzen, J AU - Terwilliger, T C AD - Structural Biology Group, MS-M888, MS-P244, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, waldo@telomere.lanl.gov Y1 - 1999/07// PY - 1999 DA - Jul 1999 SP - 691 EP - 695 VL - 17 IS - 7 SN - 1087-0156, 1087-0156 KW - green fluorescent protein KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Expression vectors KW - Fluorescence KW - Protein folding KW - Escherichia coli KW - W2 32250:Others KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17315499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Biotechnology&rft.atitle=Rapid+protein-folding+assay+using+green+fluorescent+protein&rft.au=Waldo%2C+G+S%3BStandish%2C+B+M%3BBerendzen%2C+J%3BTerwilliger%2C+T+C&rft.aulast=Waldo&rft.aufirst=G&rft.date=1999-07-01&rft.volume=17&rft.issue=7&rft.spage=691&rft.isbn=&rft.btitle=&rft.title=Nature+Biotechnology&rft.issn=10870156&rft_id=info:doi/10.1038%2F10904 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; Fluorescence; Expression vectors; Protein folding DO - http://dx.doi.org/10.1038/10904 ER - TY - JOUR T1 - Discrimination of damaged/dead cells by propidium iodide uptake in immunofluorescently labeled populations analyzed by phase-sensitive flow cytometry AN - 17240899; 4522785 AB - We report a flow cytometric fluorescence lifetime-based method to discriminate damaged/dead from viable cells in immunofluorescently labeled populations using propidium iodide as a dye-exclusion viability probe. Fluorescence signals from propidium iodide and the anti-thymus cell-surface immunofluorescence marker fluorochromes, phycoerythrin and phycoerythrin/Texas Red (tandem conjugate), which have overlapping emission spectra with propidium iodide, are resolved based on differences in their fluorescence emission lifetimes using phase-sensitive detection. Mouse thymus cell samples were first labeled separately with anti-Thy 1.2 antibody directly conjugated to phycoerythrin and to phycoerythrin/Texas Red and propidium iodide. Labeled cells were then analyzed to determine the lifetimes of the immunofluorescence markers and propidium iodide. Based on these results, rat and mouse thymocytes labeled with anti-Thy 1.1 conjugated to phycoerythrin and anti-Thy 1.2 conjugated to phycoerythrin/Texas Red, respectively, were suspended in phosphate buffered saline containing propidium iodide, and were analyzed as they passed through a flow chamber and crossed a high-frequency, intensity-modulated (sinusoidal) laser excitation beam. The resulting immunofluorescence and propidium iodide signals were resolved based on differences in fluorescence lifetimes expressed as phase shifts using phase-sensitive detection and displayed as frequency distribution histograms and bivariate contour diagrams. This technology provides a new method to resolve immunofluorescence and propidium iodide signals from overlapping fluorescence emission spectra and a flow cytometric lifetime-based technique to quantify damaged/dead cells in immunofluorescence studies. JF - Journal of Immunological Methods AU - Steinkamp, JA AU - Lehnert, B E AU - Lehnert, N M AD - Life Sciences Division, Mail Stop 888, Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1999/06/24/ PY - 1999 DA - 1999 Jun 24 SP - 59 EP - 70 PB - Elsevier Science B.V. VL - 226 IS - 1-2 SN - 0022-1759, 0022-1759 KW - propidium iodide KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Flow cytometry KW - Immunofluorescence KW - F 06721:Immunofluorescence KW - W 30965:Miscellaneous, Reviews KW - W3 33250:Methods: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17240899?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Immunological+Methods&rft.atitle=Discrimination+of+damaged%2Fdead+cells+by+propidium+iodide+uptake+in+immunofluorescently+labeled+populations+analyzed+by+phase-sensitive+flow+cytometry&rft.au=Steinkamp%2C+JA%3BLehnert%2C+B+E%3BLehnert%2C+N+M&rft.aulast=Steinkamp&rft.aufirst=JA&rft.date=1999-06-24&rft.volume=226&rft.issue=1-2&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Journal+of+Immunological+Methods&rft.issn=00221759&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Flow cytometry; Immunofluorescence ER - TY - JOUR T1 - Room airflow studies using sonic anemometry. AN - 69861121; 10390937 AB - To ensure prompt response by real-time air monitors to an accidental release of toxic aerosols in a workplace, safety professionals should understand airflow patterns. This understanding can be achieved with validated computational fluid dynamics (CFD) computer simulations, or with experimental techniques, such as measurements with smoke, neutrally buoyant markers, trace gases, or trace aerosol particles. As a supplementary technique to quantify airflows, the use of a state-of-the art, three-dimensional sonic anemometer was explored. This instrument allows for the precise measurements of the air-velocity vector components in the range of a few centimeters per second, which is common in many indoor work environments. Measurements of air velocities and directions at selected locations were made for the purpose of providing data for characterizing fundamental aspects of indoor air movement in two ventilated rooms and for comparison to CFD model predictions. One room was a mockup of a plutonium workroom, and the other was an actual functioning plutonium workroom. In the mockup room, air-velocity vector components were measured at 19 locations at three heights (60, 120 and 180 cm) with average velocities varying from 1.4 cm s-1 to 9.7 cm s-1. There were complex flow patterns observed with turbulence intensities from 39% up to 108%. In the plutonium workroom, measurements were made at the breathing-zone height, recording average velocities ranging from 9.9 cm s-1 to 35.5 cm s-1 with turbulence intensities from 33% to 108%. JF - Indoor air AU - Wasiolek, P T AU - Whicker, J J AU - Gong, H AU - Rodgers, J C AD - Health Physics Measurements Group, Los Alamos National Laboratory, NM 87545, USA. wasiolek@lanl.gov Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 125 EP - 133 VL - 9 IS - 2 SN - 0905-6947, 0905-6947 KW - Aerosols KW - 0 KW - Toxins, Biological KW - Plutonium KW - 53023GN24M KW - Index Medicus KW - Plutonium -- pharmacokinetics KW - Physical Phenomena KW - Physics KW - Toxins, Biological -- pharmacokinetics KW - Humans KW - Air KW - Air Pollution, Indoor KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69861121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indoor+air&rft.atitle=Room+airflow+studies+using+sonic+anemometry.&rft.au=Wasiolek%2C+P+T%3BWhicker%2C+J+J%3BGong%2C+H%3BRodgers%2C+J+C&rft.aulast=Wasiolek&rft.aufirst=P&rft.date=1999-06-01&rft.volume=47&rft.issue=&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-08-25 N1 - Date created - 1999-08-25 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Direct, ultrasensitive, and selective optical detection of protein toxins using multivalent interactions. AN - 69821746; 10366891 AB - Three highly sensitive, selective, and reagent-free optical signal transduction methods for detection of polyvalent proteins have been developed by directly coupling distance-dependent fluorescence self-quenching and/or resonant-energy transfer to the protein-receptor binding events. The ganglioside GM1, as the recognition unit for cholera toxin (CT), was covalently labeled with fluorophores and then incorporated into a biomimetic membrane surface. The presence of CT with five binding sites for GM1 causes dramatic change for the fluorescence of the labeled GM1. (1) In the scheme using fluorescence self-quenching as a signal-transduction mechanism, the fluorescence intensity drops significantly as a result of aggregation of the fluorophore-labeled GM1 on a biomimetic surface. (2) By labeling GM1 with a fluorescence energy transfer pair, aggregation of the labeled GM1 results in a decrease in donor fluorescence and an increase in acceptor fluorescence, providing a unique signature for selective protein-receptor binding. (3) In the third scheme, using the biomimetic surface as part of signal transduction and combining both fluorescence self-quenching and energy-transfer mechanisms to enhance the signal transduction, a signal amplification was achieved. The detection systems can reliably detect less than 0.05 nM CT with fast response (less than 5 min). This approach can easily be adapted to any biosensor scheme that relies on multiple receptors or co-receptors. The methods can also be applied to investigate the kinetics and thermodynamics of the multivalent interactions. JF - Analytical chemistry AU - Song, X AU - Swanson, B I AD - Chemical Science and Technology Division, Los Alamos National Laboratory, New Mexico 87545, USA. xs.xsong@lanl.gov Y1 - 1999/06/01/ PY - 1999 DA - 1999 Jun 01 SP - 2097 EP - 2107 VL - 71 IS - 11 SN - 0003-2700, 0003-2700 KW - 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene KW - 0 KW - Albumins KW - Boron Compounds KW - Contrast Media KW - Fluorescent Dyes KW - Lipid Bilayers KW - Membranes, Artificial KW - Phosphatidylcholines KW - Proteins KW - Toxins, Biological KW - G(M1) Ganglioside KW - 37758-47-7 KW - Cholera Toxin KW - 9012-63-9 KW - 1-palmitoyl-2-oleoylphosphatidylcholine KW - TE895536Y5 KW - Fluorescein KW - TPY09G7XIR KW - Index Medicus KW - Sensitivity and Specificity KW - Fluorescent Dyes -- metabolism KW - Albumins -- chemistry KW - Optics and Photonics KW - Energy Transfer KW - Fluorescent Dyes -- chemistry KW - Boron Compounds -- chemistry KW - Binding Sites KW - G(M1) Ganglioside -- chemistry KW - Fluorescein -- chemistry KW - Cholera Toxin -- analysis KW - Phosphatidylcholines -- chemistry KW - Contrast Media -- chemistry KW - G(M1) Ganglioside -- metabolism KW - Signal Transduction KW - Cholera Toxin -- chemistry KW - Fluorescein -- analysis KW - Cholera Toxin -- metabolism KW - Toxins, Biological -- metabolism KW - Proteins -- chemistry KW - Spectrometry, Fluorescence -- methods KW - Toxins, Biological -- chemistry KW - Spectrometry, Fluorescence -- instrumentation KW - Proteins -- analysis KW - Toxins, Biological -- analysis KW - Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69821746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+chemistry&rft.atitle=Direct%2C+ultrasensitive%2C+and+selective+optical+detection+of+protein+toxins+using+multivalent+interactions.&rft.au=Song%2C+X%3BSwanson%2C+B+I&rft.aulast=Song&rft.aufirst=X&rft.date=1999-06-01&rft.volume=71&rft.issue=11&rft.spage=2097&rft.isbn=&rft.btitle=&rft.title=Analytical+chemistry&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-07-08 N1 - Date created - 1999-07-08 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Transport and attenuation of carboxylate-modified latex microspheres in fractured rock laboratory and field tracer tests AN - 52480753; 1999-038292 JF - Ground Water AU - Becker, Matthew W AU - Reimus, Paul W AU - Vilks, Peter Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 387 EP - 395 PB - National Water Well Association, Ground-Water Technology Division, Urbana, IL VL - 37 IS - 3 SN - 0017-467X, 0017-467X KW - solute transport KW - fractured materials KW - colloidal materials KW - in situ KW - medical geology KW - pollutants KW - physicochemical properties KW - dye tracers KW - bioremediation KW - remediation KW - ground water KW - aquifers KW - laboratory studies KW - fractures KW - attenuation KW - organic compounds KW - fluorescence KW - tracers KW - polystyrene KW - hydrocarbons KW - hydrodynamics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52480753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Transport+and+attenuation+of+carboxylate-modified+latex+microspheres+in+fractured+rock+laboratory+and+field+tracer+tests&rft.au=Becker%2C+Matthew+W%3BReimus%2C+Paul+W%3BVilks%2C+Peter&rft.aulast=Becker&rft.aufirst=Matthew&rft.date=1999-06-01&rft.volume=37&rft.issue=3&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6584 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 34 N1 - PubXState - IL N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-09-16 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aquifers; attenuation; bioremediation; colloidal materials; dye tracers; fluorescence; fractured materials; fractures; ground water; hydrocarbons; hydrodynamics; in situ; laboratory studies; medical geology; organic compounds; physicochemical properties; pollutants; polystyrene; remediation; solute transport; tracers ER - TY - JOUR T1 - Chronostratigraphy of the Miocene-Pliocene Sagantole Formation, middle Awash Valley, Afar Rift, Ethiopia AN - 52480598; 1999-037288 AB - The Sagantole Formation comprises more than 200 m of lacustrine, alluvial, and volcaniclastic sediments, plus compositionally bimodal tephras and basaltic lavas, exposed in a domelike horst named the Central Awash Complex in the southwestern Afar rift of Ethiopia. The Sagantole Formation is widely known for abundant vertebrate faunas, including the 4.4 Ma primitive hominid Ardipithecus ramidus. New lithostratigraphic data are used to subdivide the Sagantole Formation into the Kuseralee, Gawto, Haradaso, Aramis, Beidareem, Adgantole, and Belohdelie Members, in ascending order. The members are defined on the basis of lithologic differences and laterally continuous bounding tephras. (super 40) Ar/ (super 39) Ar dating of 12 intercalated volcanic units firmly establishes the age of the Sagantole Formation to be 5.6 to 3.9 Ma, significantly older than previous proposals based on erroneous correlations. Magnetostratigraphic data reveal eight paleomagnetic polarity zones, which can be correlated unambiguously with the Thvera, Sidufjall, Nunivak, and Cochiti Subchrons of the Gilbert Chron. Thus, by reference to the geomagnetic polarity time scale, seven additional chronological datums can be placed in the Sagantole Formation. With a total of 19 such datums, the age resolution anywhere in the Sagantole Formation is better than + or -100 k.y., making this the best-dated Miocene-Pliocene succession in Africa. JF - Geological Society of America Bulletin AU - Renne, Paul R AU - WoldeGabriel, Giday AU - Hart, William K AU - Heiken, Grant AU - White, Tim D Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 869 EP - 885 PB - Geological Society of America (GSA), Boulder, CO VL - 111 IS - 6 SN - 0016-7606, 0016-7606 KW - lithostratigraphy KW - volcanic rocks KW - igneous rocks KW - East Africa KW - magnetostratigraphy KW - Cenozoic KW - Theria KW - volcaniclastics KW - Ethiopia KW - Gilbert Chron KW - dates KW - basalts KW - sediments KW - absolute age KW - depositional environment KW - Eutheria KW - Afar Depression KW - Chordata KW - clastic sediments KW - chronostratigraphy KW - Awash Valley KW - Mammalia KW - Ardipithecus ramidus KW - paleomagnetism KW - correlation KW - Primates KW - Miocene KW - Hominidae KW - time scales KW - Sagantole Formation KW - Tertiary KW - lower Pliocene KW - lava KW - Neogene KW - lacustrine environment KW - Pliocene KW - Africa KW - Vertebrata KW - fluvial environment KW - Tetrapoda KW - 03:Geochronology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52480598?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+of+America+Bulletin&rft.atitle=Chronostratigraphy+of+the+Miocene-Pliocene+Sagantole+Formation%2C+middle+Awash+Valley%2C+Afar+Rift%2C+Ethiopia&rft.au=Renne%2C+Paul+R%3BWoldeGabriel%2C+Giday%3BHart%2C+William+K%3BHeiken%2C+Grant%3BWhite%2C+Tim+D&rft.aulast=Renne&rft.aufirst=Paul&rft.date=1999-06-01&rft.volume=47&rft.issue=&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - With GSA Data Repository Item 9951 N1 - Last updated - 2012-06-07 N1 - CODEN - BUGMAF N1 - SubjectsTermNotLitGenreText - absolute age; Afar Depression; Africa; Ardipithecus ramidus; Awash Valley; basalts; Cenozoic; Chordata; chronostratigraphy; clastic sediments; correlation; dates; depositional environment; East Africa; Ethiopia; Eutheria; fluvial environment; Gilbert Chron; Hominidae; igneous rocks; lacustrine environment; lava; lithostratigraphy; lower Pliocene; magnetostratigraphy; Mammalia; Miocene; Neogene; paleomagnetism; Pliocene; Primates; Sagantole Formation; sediments; Tertiary; Tetrapoda; Theria; time scales; Vertebrata; volcanic rocks; volcaniclastics DO - http://dx.doi.org/10.1130/0016-7606(1999)111<0869:COTMPS>2.3.CO;2 ER - TY - JOUR T1 - Discrimination information in phase amplitude thresholds with application to western China regional data AN - 52353334; 2000-041412 AB - This article develops a regional seismic discrimination method using information inherent in phase amplitudes that are unmeasurable due to small signal amplitudes and high noise levels. The method, quadratic negative evidence discrimination (QNED), is an enhancement to the teleseismic techniques proposed by Elvers (1974) and is extended to regional discrimination. The method presented in this article is developed for a single seismic station and makes use of the empirical evidence in the regional P (sub g) versus L (sub g) discriminant (see Pomeroy et al., 1983). We develop the equations necessary to compute the station-specific, missed-explosion, and false-alarm error rates. These error rates depend on the required minimum signal-to-noise ratio (S/N) and can be adjusted, within limits, to desired levels. We also show that these equations are an accurate assessment of the errors in seismic discrimination. We propose that many of the current approaches to assessing seismic discrimination errors are often overly optimistic. For some applications, this disparity can be significant. For an application to Western China regional data [P (sub g) versus L (sub g) (1.5 to 3 Hz)], a widely used estimate of the missed-explosion error rate is 20%, leading to the perception that explosions can be identified with an accuracy rate of 80%. A proper accounting of the missed-explosion error rate, using QNED, shows that explosions can be identified with accuracy rate of only 73%. JF - Bulletin of the Seismological Society of America AU - Anderson, Dale N AU - Taylor, Steven R AU - Anderson, Kevin K Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 648 EP - 656 PB - Seismological Society of America, Berkeley, CA VL - 89 IS - 3 SN - 0037-1106, 0037-1106 KW - P-waves KW - body waves KW - Far East KW - discriminant analysis KW - guided waves KW - explosions KW - statistical analysis KW - Lg-waves KW - elastic waves KW - equations KW - noise KW - surface waves KW - applications KW - seismic waves KW - western China KW - Asia KW - earthquakes KW - China KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52353334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Discrimination+information+in+phase+amplitude+thresholds+with+application+to+western+China+regional+data&rft.au=Anderson%2C+Dale+N%3BTaylor%2C+Steven+R%3BAnderson%2C+Kevin+K&rft.aulast=Anderson&rft.aufirst=Dale&rft.date=1999-06-01&rft.volume=89&rft.issue=3&rft.spage=648&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 9 N1 - PubXState - CA N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - amplitude; applications; Asia; body waves; China; discriminant analysis; earthquakes; elastic waves; equations; explosions; Far East; guided waves; Lg-waves; noise; P-waves; seismic waves; statistical analysis; surface waves; western China ER - TY - JOUR T1 - The importance of and a method for disposing of carbon dioxide in a thermodynamically stable form AN - 52327676; 2000-057809 JF - World Resource Review AU - Butt, Darryl P AU - Lackner, Klaus S AU - Wandt, Christopher H AU - Nomura, Koji AU - Yanagisawa, Yukio Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 196 EP - 219 PB - Institute for World Resource Research, Woodridge, IL VL - 11 IS - 2 SN - 1042-8011, 1042-8011 KW - experimental studies KW - technology KW - geologic hazards KW - environmental analysis KW - carbon dioxide KW - sedimentary rocks KW - reserves KW - chemical reactions KW - energy sources KW - coal KW - new energy sources KW - greenhouse effect KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52327676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=World+Resource+Review&rft.atitle=The+importance+of+and+a+method+for+disposing+of+carbon+dioxide+in+a+thermodynamically+stable+form&rft.au=Butt%2C+Darryl+P%3BLackner%2C+Klaus+S%3BWandt%2C+Christopher+H%3BNomura%2C+Koji%3BYanagisawa%2C+Yukio&rft.aulast=Butt&rft.aufirst=Darryl&rft.date=1999-06-01&rft.volume=11&rft.issue=2&rft.spage=196&rft.isbn=&rft.btitle=&rft.title=World+Resource+Review&rft.issn=10428011&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 39 N1 - PubXState - IL N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - carbon dioxide; chemical reactions; coal; energy sources; environmental analysis; experimental studies; geologic hazards; greenhouse effect; new energy sources; reserves; sedimentary rocks; technology ER - TY - JOUR T1 - Moment-equation approach to single phase-fluid flow in heterogeneous reservoirs AN - 52264518; 2001-013475 AB - In this paper, we study single phase, steady-state flow in bounded, heterogeneous reservoirs. We derive general equations governing the statistical moments of flow quantities by perturbation expansions. These moments may be used to construct confidence intervals for the flow quantities. Due to their mathematical complexity, we solve the moment differential equations (MDEs) by the numerical technique of finite differences. The numerical MDE approach renders the flexibility in handling complex flow configurations, different boundary conditions, various covariance functions of the independent variables, and moderately irregular geometry, all of which are important factors to consider for real-world applications. The other method with these flexibilities is Monte Carlo simulation (MCS) which has been widely used in the industry. These two approaches are complementary, and each has its own advantages and disadvantages. The numerical MDE approach is compared with published results of MCS and analytical MDE approaches and is demonstrated with two examples involving injection/production wells. JF - SPE Journal AU - Zhang, Dongxiao AU - Winter, C L Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 118 EP - 127 PB - Society of Petroleum Engineers, Richardson, TX VL - 4 IS - 2 SN - 1086-055X, 1086-055X KW - Monte Carlo analysis KW - statistical analysis KW - injection KW - mathematical models KW - fluid phase KW - fluid dynamics KW - porosity KW - reservoir rocks KW - flows KW - heterogeneous materials KW - hydraulic conductivity KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52264518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Pliocene+and+Quaternary+history+of+the+Rio+Grande%2C+White+Rock+Canyon+and+vicinity%2C+New+Mexico&rft.au=Reneau%2C+Steven+L%3BDethier%2C+David+P&rft.aulast=Reneau&rft.aufirst=Steven&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 33 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - flows; fluid dynamics; fluid phase; heterogeneous materials; hydraulic conductivity; injection; mathematical models; Monte Carlo analysis; permeability; porosity; reservoir rocks; statistical analysis ER - TY - JOUR T1 - Polar wandering in mantle convection models AN - 50139791; 1999-055430 AB - We calculate polar motion in models of 3-D spherical mantle convection at Rayleigh numbers up to 10 (super 8) which include internal heating, radial viscosity variations, and an endothermic phase change. Isoviscous models yield rapid polar motion of order 3 degrees /Myr, but a factor of 30 increase in viscosity with depth reduces the rate of polar motion to about 0.5 degrees /Myr due to stabilization of the large-scale pattern of convection. Avalanching due to an endothermic phase change causes pulsating inertial interchange polar excursions of order 80-110 degrees and of duration 20-70 Myr. A layered viscosity model with an endothermic phase change yields only one inertial interchange event in 600 million years. These models show that the slow observed rate of post-Paleozoic true polar wander is not incompatible with higher rates inferred for earlier times. Copyright 1999 by the American Geophysical Union. JF - Geophysical Research Letters AU - Richards, M A AU - Bunge, H P AU - Ricard, Y AU - Baumgardner, J R Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 1777 EP - 1780 PB - American Geophysical Union, Washington, DC VL - 26 IS - 12 SN - 0094-8276, 0094-8276 KW - three-dimensional models KW - Paleozoic KW - mantle KW - convection KW - layered materials KW - time scales KW - models KW - Rayleigh number KW - plate tectonics KW - viscosity KW - rotation KW - polar wandering KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50139791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Polar+wandering+in+mantle+convection+models&rft.au=Richards%2C+M+A%3BBunge%2C+H+P%3BRicard%2C+Y%3BBaumgardner%2C+J+R&rft.aulast=Richards&rft.aufirst=M&rft.date=1999-06-01&rft.volume=26&rft.issue=12&rft.spage=1777&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F1999GL900331 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - convection; layered materials; mantle; models; Paleozoic; plate tectonics; polar wandering; Rayleigh number; rotation; three-dimensional models; time scales; viscosity DO - http://dx.doi.org/10.1029/1999GL900331 ER - TY - JOUR T1 - Disruption of Anthrax Toxin Binding with the Use of Human Antibodies and Competitive Inhibitors AN - 17298237; 4564457 AB - The protective antigen (PA83) of Bacillus anthracis is integral to the mechanism of anthrax toxicity. We have isolated a human single-chain Fv antibody fragment (scFv) that blocks binding of a fluorescently tagged protective antigen (PA) moiety to cell surface receptors. Several phage-displayed scFv were isolated from a naive library biopanned against PA83. Soluble, monomeric scFv were characterized for affinity and screened for their capacity to disrupt receptor-mediated binding of PA. Four unique scFv bound to PA83, as determined by surface plasmon resonance, the tightest binder exhibiting a K sub(d) of 50 nM. Two scFv had similar affinities for natural PA83 and a novel, recombinant, 32-kDa carboxy-terminal PA fragment (PA32). Binding of scFv to green fluorescent protein fused to the amino-terminal 32-kDa fragment of B. anthracis edema factor, EGFP-EF32, was used to confirm specificity. Fusion of EGFP to PA32 facilitated development of a novel flow cytometric assay that showed that one of the scFv disrupted PA receptor binding. This method can now be used as a rapid assay for small molecule inhibitors of PA binding to cell receptors. The combined data presented suggest the potential utility of human scFv as prophylactics against anthrax poisoning. Moreover, recombinant PA32 may also be useful as a therapeutic agent to compete with anthrax toxins for cellular receptors during active infection. JF - Infection and Immunity AU - Cirino, N M AU - Sblattero, D AU - Allen, D AU - Peterson AU - Marks, J D AU - Jackson, P J AU - Bradbury, A AU - Lehnert, B E AD - MS M888, Los Alamos National Laboratory, Los Alamos, NM 87545 USA, lehnert@telomere.lanl.gov Y1 - 1999/06// PY - 1999 DA - Jun 1999 SP - 2957 EP - 2963 VL - 67 IS - 6 SN - 0019-9567, 0019-9567 KW - Bacillus anthracis KW - immunology KW - man KW - Immunology Abstracts; Toxicology Abstracts; Microbiology Abstracts B: Bacteriology KW - Toxins KW - Antibodies KW - Anthrax KW - X 24171:Microbial KW - F 06711:Monoclonal antibodies, hybridomas, antigens and antisera KW - J 02823:In vitro and in vivo effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17298237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=Disruption+of+Anthrax+Toxin+Binding+with+the+Use+of+Human+Antibodies+and+Competitive+Inhibitors&rft.au=Cirino%2C+N+M%3BSblattero%2C+D%3BAllen%2C+D%3BPeterson%3BMarks%2C+J+D%3BJackson%2C+P+J%3BBradbury%2C+A%3BLehnert%2C+B+E&rft.aulast=Cirino&rft.aufirst=N&rft.date=1999-06-01&rft.volume=67&rft.issue=6&rft.spage=2957&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacillus anthracis; Anthrax; Toxins; Antibodies ER - TY - JOUR T1 - Extension of "Transient flow in bounded randomly heterogeneous domains. 1. Exact conditional moment equations and recursive approximations" AN - 17264570; 4572528 AB - In a recent paper we developed exact nonlocal conditional moment equations for transient flow in bounded domains driven by random forcing terms (sources, initial head, and boundary conditions). Whereas our conditional mean equations took into account the randomness of forcing terms, our conditional second moment equations did not. We do so in this brief addendum. JF - Water Resources Research AU - Tartakovsky, D M AU - Neuman, S P AD - Group CIC-19, Los Alamos National Laboratory, Los Alamos, New Mexico, USA Y1 - 1999/06// PY - 1999 DA - Jun 1999 SP - 1921 EP - 1925 PB - American Geophysical Union VL - 35 IS - 6 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts KW - Estimating equations KW - Watersheds KW - Boundary conditions KW - Mathematical analysis KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17264570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Extension+of+%22Transient+flow+in+bounded+randomly+heterogeneous+domains.+1.+Exact+conditional+moment+equations+and+recursive+approximations%22&rft.au=Tartakovsky%2C+D+M%3BNeuman%2C+S+P&rft.aulast=Tartakovsky&rft.aufirst=D&rft.date=1999-06-01&rft.volume=35&rft.issue=6&rft.spage=1921&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Estimating equations; Watersheds; Boundary conditions; Mathematical analysis ER - TY - JOUR T1 - Solution structure and peptide binding studies of the C-terminal Src homology 3-like domain of the diphtheria toxin repressor protein AN - 17235432; 4523328 AB - The diphtheria toxin repressor (DtxR) is the best-characterized member of a family of homologous proteins that regulate iron uptake and virulence gene expression in the Gram-positive bacteria. DtxR contains two domains that are separated by a short, unstructured linker. The N-terminal domain is structurally well-defined and is responsible for Fe super(2+) binding, dimerization, and DNA binding. The C-terminal domain adopts a fold similar to eukaryotic Src homology 3 domains, but the functional role of the C-terminal domain in repressor activity is unknown. The solution structure of the C-terminal domain, consisting of residues N130-L226 plus a 13-residue N-terminal extension, has been determined by using NMR spectroscopy. Residues before A147 are highly mobile and adopt a random coil conformation, but residues A147-L226 form a single structured domain consisting of five beta -strands and three helices arranged into a partially orthogonal, two-sheet beta -barrel, similar to the structure observed in the crystalline Co super(2+) complex of full-length DtxR. Chemical shift perturbation studies demonstrate that a proline- rich peptide corresponding to residues R125-G139 of intact DtxR binds to the C-terminal domain in a pocket formed by residues in beta -strands 2, 3, and 5, and helix 3. Binding of the proline-rich peptide by the C-terminal domain of DtxR presents an example of peptide binding by a prokaryotic Src homology 3-like protein. The results of this study combined with previous x-ray studies of intact DtxR, provide insights into a possible biological function of the C- terminal domain in regulating repressor activity. JF - Proceedings of the National Academy of Sciences, USA AU - Wang, G AU - Wylie, G P AU - Twigg, P D AU - Caspar, DLD AU - Murphy, J R AU - Logan, T M AD - Institute of Molecular Biophysics, National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32306, logan@sb.fsu.edu Y1 - 1999/05/25/ PY - 1999 DA - 1999 May 25 SP - 6119 EP - 6124 VL - 96 IS - 11 SN - 0027-8424, 0027-8424 KW - C-terminus KW - DtxR protein KW - Src protein KW - diphtheria toxin KW - diphtheria toxin repressor KW - iron KW - iron-binding protein KW - proline KW - solution structure KW - virulence factors KW - Biochemistry Abstracts 2: Nucleic Acids; Toxicology Abstracts KW - Corynebacterium diphtheriae KW - Repressors KW - N 14930:Transcription factors KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17235432?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.atitle=Solution+structure+and+peptide+binding+studies+of+the+C-terminal+Src+homology+3-like+domain+of+the+diphtheria+toxin+repressor+protein&rft.au=Wang%2C+G%3BWylie%2C+G+P%3BTwigg%2C+P+D%3BCaspar%2C+DLD%3BMurphy%2C+J+R%3BLogan%2C+T+M&rft.aulast=Wang&rft.aufirst=G&rft.date=1999-05-25&rft.volume=96&rft.issue=11&rft.spage=6119&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.issn=00278424&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Corynebacterium diphtheriae; Repressors ER - TY - JOUR T1 - Haloalkane dehalogenases: steady-state kinetics and halide inhibition. AN - 69736296; 10231528 AB - The substrate specificities and product inhibition patterns of haloalkane dehalogenases from Xanthobacter autotrophicus GJ10 (XaDHL) and Rhodococcus rhodochrous (RrDHL) have been compared using a pH-indicator dye assay. In contrast to XaDHL, RrDHL is efficient toward secondary alkyl halides. Using steady-state kinetics, we have shown that halides are uncompetitive inhibitors of XaDHL with 1, 2-dichloroethane as the varied substrate at pH 8.2 (Cl-, Kii = 19 +/- 0.91; Br-, Kii = 2.5 +/- 0.19 mM; I-, Kii = 4.1 +/- 0.43 mM). Because they are uncompetitive with the substrate, halide ions do not bind to the free form of the enzyme; therefore, halide ions cannot be the last product released from the enzyme. The Kii for chloride was pH dependent and decreased more than 20-fold from 61 mM at pH 8.9 to 2.9 mM at pH 6.5. The pH dependence of 1/Kii showed simple titration behavior that fit to a pKa of approximately 7.5. The kcat was maximal at pH 8.2 and decreased at lower pH. A titration of kcat versus pH also fits to a pKa of approximately 7.5. Taken together, these data suggest that chloride binding and kcat are affected by the same ionizable group, likely the imidazole of a histidyl residue. In contrast, halides do not inhibit RrDHL. The Rhodococcus enzyme does not contain a tryptophan corresponding to W175 of XaDHL, which has been implicated in halide ion binding. The site-directed mutants W175F and W175Y of XaDHL were prepared and tested for halide ion inhibition. Halides do not inhibit either W175F or W175Y XaDHL. JF - Biochemistry AU - Schindler, J F AU - Naranjo, P A AU - Honaberger, D A AU - Chang, C H AU - Brainard, J R AU - Vanderberg, L A AU - Unkefer, C J AD - Chemical Sciences and Technology Division, Bioscience and Biotechnology Group, Life Sciences Division, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1999/05/04/ PY - 1999 DA - 1999 May 04 SP - 5772 EP - 5778 VL - 38 IS - 18 SN - 0006-2960, 0006-2960 KW - Chlorides KW - 0 KW - Enzyme Inhibitors KW - Indicators and Reagents KW - Nitrophenols KW - Tyrosine KW - 42HK56048U KW - Phenylalanine KW - 47E5O17Y3R KW - Ethylene Chlorohydrin KW - 753N66IHAN KW - 3-cresol purple KW - 85ODZ58K3D KW - Tryptophan KW - 8DUH1N11BX KW - Hydrolases KW - EC 3.- KW - haloalkane dehalogenase KW - EC 3.8.1.5 KW - Phenolsulfonphthalein KW - I6G9Y0J1OJ KW - 3-nitrophenol KW - T6P4T52V9W KW - Index Medicus KW - Hydrogen-Ion Concentration KW - Enzyme Inhibitors -- chemistry KW - Rhodococcus -- enzymology KW - Amino Acid Sequence KW - Gram-Negative Aerobic Bacteria -- enzymology KW - Mutagenesis, Site-Directed KW - Phenolsulfonphthalein -- analogs & derivatives KW - Ethylene Chlorohydrin -- chemistry KW - Kinetics KW - Binding, Competitive KW - Molecular Sequence Data KW - Enzyme Inhibitors -- pharmacology KW - Tyrosine -- genetics KW - Phenylalanine -- genetics KW - Substrate Specificity KW - Ethylene Chlorohydrin -- pharmacology KW - Tryptophan -- genetics KW - Chlorides -- chemistry KW - Hydrolases -- chemistry KW - Hydrolases -- antagonists & inhibitors KW - Chlorides -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69736296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Haloalkane+dehalogenases%3A+steady-state+kinetics+and+halide+inhibition.&rft.au=Schindler%2C+J+F%3BNaranjo%2C+P+A%3BHonaberger%2C+D+A%3BChang%2C+C+H%3BBrainard%2C+J+R%3BVanderberg%2C+L+A%3BUnkefer%2C+C+J&rft.aulast=Schindler&rft.aufirst=J&rft.date=1999-05-04&rft.volume=38&rft.issue=18&rft.spage=5772&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-06-01 N1 - Date created - 1999-06-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Geochemical signals of the Late Jurassic, marine Mjolnir impact AN - 52439926; 1999-064032 AB - Of the only seven submarine impact craters that have been found globally, the Mjolnir crater is one of the best preserved and retains crater and ejecta. Geochemical studies (organic pyrolysis using the Rock Eval technique and XRF analysis for major, minor, and trace elements) of the Institute for Petroleum Research (IKU) core 7430/10-U-01 that was taken from a drillhole located approximately 30 km north-northeast of the crater rim show gradual establishment of anoxic sea floor conditions through the late Jurassic. These poorly ventilated water conditions were overturned due to the Mjolnir impact event. Waves and currents transported impact glass (which is now partly weathered to smectite) into the depositional area where the drillhole is located. The succeeding crater collapse transported impact material (e.g., shocked quartz and Ir) from the crater rim and deeper levels to the core site. Normal marine depositional conditions were established a short time after the crater collapsed. JF - Meteoritics & Planetary Science AU - Dypvik, Henning AU - Attrep, Moses, Jr Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 393 EP - 406 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 3 SN - 1086-9379, 1086-9379 KW - oxygen KW - impact features KW - Cretaceous KW - thin sections KW - Rock-Eval KW - cores KW - variations KW - mineral composition KW - major elements KW - pyrolysis KW - Barents Sea KW - total organic carbon KW - X-ray fluorescence spectra KW - Arctic Ocean KW - spectra KW - trace elements KW - Mjolnir Crater KW - chemical composition KW - geochemistry KW - Lower Cretaceous KW - minor elements KW - Upper Jurassic KW - Jurassic KW - Berriasian KW - Mesozoic KW - organic compounds KW - deposition KW - hydrogen KW - impact craters KW - reconstruction KW - Kimmeridgian KW - 02C:Geochemistry of rocks, soils, and sediments KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52439926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Outline+of+the+petrology+and+geochemistry+of+the+Keres+Group+lavas+and+tuffs&rft.au=Ellisor%2C+Rachel%3BWolff%2C+John%3BGardner%2C+Jamie+N&rft.aulast=Ellisor&rft.aufirst=Rachel&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 51 N1 - PubXState - AR N1 - Document feature - illus. incl. strat. cols., 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Arctic Ocean; Barents Sea; Berriasian; chemical composition; cores; Cretaceous; deposition; geochemistry; hydrogen; impact craters; impact features; Jurassic; Kimmeridgian; Lower Cretaceous; major elements; Mesozoic; mineral composition; minor elements; Mjolnir Crater; organic compounds; oxygen; pyrolysis; reconstruction; Rock-Eval; spectra; thin sections; total organic carbon; trace elements; Upper Jurassic; variations; X-ray fluorescence spectra ER - TY - JOUR T1 - Effects of shallow basaltic intrusion into silicic tephra, Grants Ridge, New Mexico AN - 52337124; 2000-051976 JF - New Mexico Geology AU - WoldeGabriel, Giday AU - Keating, Gordon N AU - Valentine, Greg A AU - Anonymous Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 35 EP - 36 PB - New Mexico Bureau of Mines and Mineral Resources, Socorro, NM VL - 21 IS - 2 SN - 0196-948X, 0196-948X KW - United States KW - plugs KW - volcanic rocks KW - numerical models KW - glasses KW - Grants Ridge KW - igneous rocks KW - waste disposal sites KW - New Mexico KW - metasomatism KW - radioactive waste KW - pyroclastics KW - intrusions KW - volcanic glass KW - devitrification KW - water-rock interaction KW - basalts KW - aureoles KW - heat transfer KW - hydrothermal alteration KW - waste disposal KW - field studies KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52337124?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=New+Mexico+Geology&rft.atitle=Effects+of+shallow+basaltic+intrusion+into+silicic+tephra%2C+Grants+Ridge%2C+New+Mexico&rft.au=WoldeGabriel%2C+Giday%3BKeating%2C+Gordon+N%3BValentine%2C+Greg+A%3BAnonymous&rft.aulast=WoldeGabriel&rft.aufirst=Giday&rft.date=1999-05-01&rft.volume=21&rft.issue=2&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=New+Mexico+Geology&rft.issn=0196948X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society annual spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - NM N1 - Last updated - 2012-06-07 N1 - CODEN - NMGED2 N1 - SubjectsTermNotLitGenreText - aureoles; basalts; devitrification; field studies; glasses; Grants Ridge; heat transfer; hydrothermal alteration; igneous rocks; intrusions; metasomatism; New Mexico; numerical models; plugs; pyroclastics; radioactive waste; United States; volcanic glass; volcanic rocks; waste disposal; waste disposal sites; water-rock interaction ER - TY - JOUR T1 - Rock fall control test report #1 Rifle, Colorado AN - 52127913; 2002-029425 JF - Proceedings of the Annual Highway Geology Symposium AU - Andrew, Rick AU - Fry, David AU - Bookwalter, Robert E AU - Anonymous Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 364 PB - Highway Geology Symposium, Atlanta, GA VL - 50 SN - 0160-9564, 0160-9564 KW - United States KW - rockfalls KW - Rifle Colorado KW - foundations KW - Garfield County Colorado KW - mass movements KW - testing KW - fences KW - Colorado KW - design KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52127913?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+Highway+Geology+Symposium&rft.atitle=Rock+fall+control+test+report+%231+Rifle%2C+Colorado&rft.au=Andrew%2C+Rick%3BFry%2C+David%3BBookwalter%2C+Robert+E%3BAnonymous&rft.aulast=Andrew&rft.aufirst=Rick&rft.date=1999-05-01&rft.volume=50&rft.issue=&rft.spage=364&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+Highway+Geology+Symposium&rft.issn=01609564&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 50th annual Highway geology symposium & TRB karst meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - GA N1 - Last updated - 2012-06-07 N1 - CODEN - PAHGAG N1 - SubjectsTermNotLitGenreText - Colorado; design; fences; foundations; Garfield County Colorado; mass movements; Rifle Colorado; rockfalls; testing; United States ER - TY - JOUR T1 - Geothermal chemistry, exploration and reservoir processes AN - 50866438; 2008-095926 JF - DOE/ID Report AU - Janik, Cathy J AU - Goff, Fraser AU - Reed, Marshall Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 2.71 EP - 2.76 PB - U. S. Department of Energy, Office of Fossil Energy, Washington, DC KW - United States KW - oxygen KW - isotopes KW - fluid dynamics KW - stable isotopes KW - Dixie Valley KW - reservoir rocks KW - ground water KW - carbon dioxide KW - California KW - geothermal systems KW - energy sources KW - carbon KW - trace elements KW - chemical composition KW - geochemistry KW - Nevada KW - water KW - isotope ratios KW - C-13/C-12 KW - O-18/O-16 KW - models KW - geothermal energy KW - geothermal fields KW - geothermal reservoirs KW - The Geysers KW - dissolved materials KW - 29A:Economic geology, geology of energy sources KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50866438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=DOE%2FID+Report&rft.atitle=Geothermal+chemistry%2C+exploration+and+reservoir+processes&rft.au=Janik%2C+Cathy+J%3BGoff%2C+Fraser%3BReed%2C+Marshall&rft.aulast=Janik&rft.aufirst=Cathy&rft.date=1999-05-01&rft.volume=47&rft.issue=&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 12 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - #06452 N1 - SubjectsTermNotLitGenreText - C-13/C-12; California; carbon; carbon dioxide; chemical composition; dissolved materials; Dixie Valley; energy sources; fluid dynamics; geochemistry; geothermal energy; geothermal fields; geothermal reservoirs; geothermal systems; ground water; isotope ratios; isotopes; models; Nevada; O-18/O-16; oxygen; reservoir rocks; stable isotopes; The Geysers; trace elements; United States; water ER - TY - JOUR T1 - Global Conformational Changes Control the Reactivity of Methane Monooxygenase AN - 17362361; 4564084 AB - We present here X-ray scattering data that yield new structural information on the multicomponent enzyme methane monooxygenase and its components: a hydroxylase dimer, and two copies each of a reductase and regulatory protein B. Upon formation of the enzyme complex, the hydroxylase undergoes a dramatic conformational change that is observed in the scattering data as a fundamental change in shape of the scattering particle such that one dimension is narrowed (by 25% or 24 Ae) while the longest dimension increases (by 20% or 25 Ae). These changes also are reflected in a 13% increase in radius of gyration upon complex formation. Both the reductase and protein B are required for inducing the conformational change. We have modeled the scattering data for the complex by systematically modifying the crystal structure of the hydroxylase and using ellipsoids to represent the reductase and protein B components. Our model indicates that protein B plays a role in optimizing the interaction between the active centers of the reductase and hydroxylase components, thus, facilitating electron transfer between them. In addition, the model suggests reasons why the hydroxylase exists as a dimer and that a possible role for the outlying gamma -subunit may be to stabilize the complex through its interaction with the other components. We further show that proteolysis of protein B to form the inactive B' results in a conformational change and B' does not bind to the hydroxylase. The truncation thus could represent a regulatory mechanism for controlling the enzyme activity. JF - Biochemistry (Washington) AU - Gallagher, S C AU - Callaghan, A J AU - Zhao, Jinkui AU - Dalton, H AU - Trewhella, J AD - Chemical Science and Technology Division, Mail Stop G758, Los Alamos National Laboratory, Los Alamos, NM 87544, USA, jtrewhella@lanl.gov Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 6752 EP - 6760 VL - 38 IS - 21 SN - 0006-2960, 0006-2960 KW - Microbiology Abstracts B: Bacteriology KW - X-ray scattering KW - Electron transfer KW - Structure-activity relationships KW - Methane monooxygenase KW - Conformational analysis KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17362361?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry+%28Washington%29&rft.atitle=Global+Conformational+Changes+Control+the+Reactivity+of+Methane+Monooxygenase&rft.au=Gallagher%2C+S+C%3BCallaghan%2C+A+J%3BZhao%2C+Jinkui%3BDalton%2C+H%3BTrewhella%2C+J&rft.aulast=Gallagher&rft.aufirst=S&rft.date=1999-05-01&rft.volume=38&rft.issue=21&rft.spage=6752&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/10.1021%2Fbi982991n LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Methane monooxygenase; Conformational analysis; X-ray scattering; Electron transfer; Structure-activity relationships DO - http://dx.doi.org/10.1021/bi982991n ER - TY - JOUR T1 - Phylogeny, Ribosomal RNA Gene Typing and Relative Abundance of New Pseudomonas species (sensu stricto) isolated from Two Pinyon-Juniper Woodland Soils of the Arid Southwest U.S. AN - 17309534; 4575434 AB - Rhizosphere-inhabiting Pseudomonas species interact with plant roots and may be important for plant performance under stressful environmental conditions. A comparison was conducted of culturable Pseudomonas isolates associated with pinyon rhizosphere and between-tree interspace areas in a hot, dry, volcanic cinder field and an adjacent sandy loam soil, in order to identify Pseudomonas species which may be involved in pinyon pine survival under stressful conditions. From a collection of 800 isolates, eleven isolates exhibiting different colony morphology were selected for 16S ribosomal RNA gene sequencing. Phylogenetic analysis of rDNA sequences from the eleven field isolates, forty-six described Pseudomonas species, and thirty-four previously characterized environmental isolates indicated that the isolates from the cinders and sandy loam soil clustered into three groups. The field isolates were distinct from any of the named species or other environmental isolates. Oligonucleotide primer pairs that differentiated three field isolate groups were designed from the 16S rDNA sequences, and eight hundred Pseudomonas field isolates cultured from pinyon rhizospheres and interspaces in the cinders and sandy loam soils were typed into the three groups using PCR assays. The composition of Pseudomonas populations in four environments was significantly different. The relative abundance of the three rDNA-based groups appeared to be affected by both the soil type and the pinyon rhizosphere. JF - Systematic and Applied Microbiology AU - Kuske, C R AU - Busch, J D AU - Adorada, D L AU - Dunbar, J M AU - Barns, S M AD - Environmental Molecular Biology Group, M888, Life Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, kuske@lanl.gov Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 300 EP - 311 VL - 22 IS - 2 SN - 0723-2020, 0723-2020 KW - USA, Southwest KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Phylogeny KW - Soil types KW - Rhizosphere KW - Genotyping KW - Arid environments KW - Pseudomonas KW - A 01047:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17309534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Systematic+and+Applied+Microbiology&rft.atitle=Phylogeny%2C+Ribosomal+RNA+Gene+Typing+and+Relative+Abundance+of+New+Pseudomonas+species+%28sensu+stricto%29+isolated+from+Two+Pinyon-Juniper+Woodland+Soils+of+the+Arid+Southwest+U.S.&rft.au=Kuske%2C+C+R%3BBusch%2C+J+D%3BAdorada%2C+D+L%3BDunbar%2C+J+M%3BBarns%2C+S+M&rft.aulast=Kuske&rft.aufirst=C&rft.date=1999-05-01&rft.volume=22&rft.issue=2&rft.spage=300&rft.isbn=&rft.btitle=&rft.title=Systematic+and+Applied+Microbiology&rft.issn=07232020&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas; Soil types; Phylogeny; Arid environments; Genotyping; Rhizosphere ER - TY - JOUR T1 - Treatment of Heterogeneous Mixed Wastes: Enzyme Degradation of Cellulosic Materials Contaminated with Hazardous Organics and Toxic and Radioactive Metals AN - 20827581; 4586400 AB - The redirection and downsizing of the U.S. Department of Energy's nuclear weapons complex requires that many facilities be decontaminated and decommissioned (D&D). At Los Alamos National Laboratory, much of the low-level radioactive, mixed, and hazardous/chemical waste volume handled by waste management operations was produced by D&D and environmental restoration activities. A combination of technologies--air stripping and biodegradation of volatile organics, enzymatic digestion of cellulosics, and metal ion extraction--was effective in treating a radiologically contaminated heterogeneous paint-stripping waste. Treatment of VOCs using a modified bioreactor avoided radioactive contamination of byproduct biomass and inhibition of biodegradation by toxic metal ions in the waste. Cellulase digestion of bulk cellulose minimized the final solid waste volume by 80%. Moreover, the residue passed TCLP for RCRA metals. Hazardous metals and radioactivity in byproduct sugar solutions were removed using polymer filtration, which employs a combination of water-soluble chelating polymers and ultrafiltration to separate and concentrate metal contaminants. Polymer filtration was used to concentrate RCRA metals and radioactivity into <5% of the original wastewater volume. Permeate solutions had no detectable radioactivity and were below RCRA-allowable discharge limits for Pb and Cr. JF - Environmental Science & Technology AU - Vanderberg, LA AU - Foreman, T M AU - Attrep, M Jr AU - Brainard, J R AU - Sauer, N N AD - Chemical Sciences and Technology Division, Los Alamos National Laboratory, Mailstop E-529, Los Alamos, New Mexico 87545, lvanderberg@lanl.gov Y1 - 1999/04/15/ PY - 1999 DA - 1999 Apr 15 SP - 1256 EP - 1262 VL - 33 IS - 8 SN - 0013-936X, 0013-936X KW - decommissioning KW - Toxicology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Health & Safety Science Abstracts KW - Ultrafiltration KW - Biodegradation KW - Contamination KW - Cellulose KW - Nuclear weapons KW - Decontamination KW - Lead KW - Solid wastes KW - Cellulase KW - Waste management KW - Digestion KW - Bioreactors KW - Radioactive materials KW - Radioactivity KW - Ions KW - Sugar KW - Metals KW - Chromium KW - Toxic materials KW - Enzymes KW - Biomass KW - Filtration KW - Hazardous materials KW - Volatiles KW - Environmental restoration KW - Contaminants KW - Waste water KW - Volatile organic compounds KW - X 24390:Radioactive Materials KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION KW - A 01450:Environmental Pollution & Waste Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20827581?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Treatment+of+Heterogeneous+Mixed+Wastes%3A+Enzyme+Degradation+of+Cellulosic+Materials+Contaminated+with+Hazardous+Organics+and+Toxic+and+Radioactive+Metals&rft.au=Vanderberg%2C+LA%3BForeman%2C+T+M%3BAttrep%2C+M+Jr%3BBrainard%2C+J+R%3BSauer%2C+N+N&rft.aulast=Vanderberg&rft.aufirst=LA&rft.date=1999-04-15&rft.volume=33&rft.issue=8&rft.spage=1256&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9804262 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Ultrafiltration; Metals; Sugar; Ions; Biodegradation; Contamination; Chromium; Cellulose; Enzymes; Biomass; Cellulase; Solid wastes; Lead; Digestion; Filtration; Volatiles; Bioreactors; Environmental restoration; Radioactivity; Waste water; Contaminants; Hazardous materials; Radioactive materials; Toxic materials; Nuclear weapons; Decontamination; Volatile organic compounds; Waste management DO - http://dx.doi.org/10.1021/es9804262 ER - TY - JOUR T1 - Source comparisons between nuclear and chemical explosions detonated at Rainier Mesa, Nevada Test Site AN - 52471426; 1999-042613 AB - A series of nuclear [Mineral Quarry (MQ), Hunters Trophy (HT)] an chemical [Non-Proliferation Experiment (NPE) and NPE CAL] explosions were detonated in the same geological material at Rainier Mesa, Nevada Test Site. These sources were extensively instrumented with the same near-source, free-surface instrumentation array. The data from these explosions allow the establishment of empirical source scaling relations as well as investigation of possible chemical and nuclear source differences. Even in the near-source region at common receivers, the data display propagation path effects resulting from slight differences in source locations. These effects are effectively taken into account by smoothing the source comparisons across the different stations in the receiver array. As many as 30 individual waveforms from each source are used in this smoothing process. Comparison of HT and NPE at near-source distances indicates that within the bandwidth of the data (0.36 to 100 Hz), there is no apparent spectral difference between the nuclear and single-fired chemical source. The smoothed spectral ratio between the NPE and NPE CAL is consistent with the long-period source spectral difference (10 (super 4) ), corner frequencies (2 to 3 Hz/NPE and 40 to 60 Hz/NPE CAL), and high-frequency decay (f (super -2) ) similar to the Mueller-Murphy source model for wet tuff after modifying the cavity radius to scale as the cube root of yield. Comparison of the two nuclear sources, HT and MQ, indicates that at long periods, the HT/MQ ratio is 0.4 to 0.6 with the spectra from the two explosions merging above 5 Hz, which is consistent with the 0.3 magnitude difference observed for the two sources. In all the source comparisons, the spectral ratios of the transverse components of motion are indistinguishable from those produced by either the vertical or radial components. This fact argues that the transverse component of motion from an explosion is generated at very close-in distances, in this case on the order of 1 to 2 km. These observations are in agreement with some type of linear scattering mechanism. JF - Bulletin of the Seismological Society of America AU - Stump, Brian W AU - Pearson, D Craig AU - Reinke, Robert E Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 409 EP - 422 PB - Seismological Society of America, Berkeley, CA VL - 89 IS - 2 SN - 0037-1106, 0037-1106 KW - United States KW - P-waves KW - body waves KW - explosions KW - chemical explosions KW - elastic waves KW - calibration KW - equations KW - seismic sources KW - Nye County Nevada KW - Nevada Test Site KW - stochastic processes KW - Rainier Mesa KW - time factor KW - velocity KW - propagation KW - seismic waves KW - nuclear explosions KW - Nevada KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52471426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Source+comparisons+between+nuclear+and+chemical+explosions+detonated+at+Rainier+Mesa%2C+Nevada+Test+Site&rft.au=Stump%2C+Brian+W%3BPearson%2C+D+Craig%3BReinke%2C+Robert+E&rft.aulast=Stump&rft.aufirst=Brian&rft.date=1999-04-01&rft.volume=89&rft.issue=2&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 34 N1 - PubXState - CA N1 - Document feature - illus. incl. 3 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - body waves; calibration; chemical explosions; elastic waves; equations; explosions; Nevada; Nevada Test Site; nuclear explosions; Nye County Nevada; P-waves; propagation; Rainier Mesa; seismic sources; seismic waves; stochastic processes; time factor; United States; velocity ER - TY - JOUR T1 - Empirical path corrections for regional-phase amplitudes AN - 52470829; 1999-042611 AB - Using data from 385 events recorded at Lanzhou in central China, I compare two empirical methods for predicting and correcting for path effects on regional-phase amplitude ratios. The first method interpolates source- and distance-corrected seismic data to create geographical, path-correction surfaces. The second, or wave-guide, method employs correlations with path-averaged physical data such as topography to correct the seismic data. Path corrections can vary over an order of magnitude, and their use will sharpen differences in regional-phase ratios arising from different types of natural and man-made sources of seismic energy and, thus, will be important for monitoring a Comprehensive Test Ban Treaty. For P (sub g) /L (sub g) phase ratios in the band 0.5 to 1 Hz, interpolated path corrections reduced variance best using kriging (62%) and nearly as well using a radius 250 km, moving-window-mean smoother (56%). Wave-guide methods based on mean and rms topography reduced variance by 43%. Variance reduction is given relative to the standard correction for distance alone. Wave-guide methods were further tested by attempting to find correlations with topographic data that had been rotated geographically. For conservatively chosen sets of wave-guide parameters, the true orientations yielded the best variance reduction, adding confidence to the use of this method. Wave-guide methods complement interpolation methods because they extrapolate behavior beyond active seismic areas. However, I find broad regions that are fit poorly by wave-guide predictions, especially where the path effect changes rapidly, such as along the eastern edge of the Tibetan plateau where P (sub g) /L (sub g) ratios are under-predicted. The two methods can be combined using Bayesian kriging, forcing predictions to fit the data in seismically active areas and allowing more powerful extrapolation beyond. JF - Bulletin of the Seismological Society of America AU - Phillips, W Scott Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 384 EP - 393 PB - Seismological Society of America, Berkeley, CA VL - 89 IS - 2 SN - 0037-1106, 0037-1106 KW - P-waves KW - Far East KW - Lg-waves KW - kriging KW - mantle KW - Lanzhou China KW - Gansu China KW - elastic waves KW - attenuation KW - surface waves KW - seismicity KW - Asia KW - China KW - seismograms KW - upper mantle KW - body waves KW - guided waves KW - statistical analysis KW - equations KW - seismic waves KW - corrections KW - seismic networks KW - earthquakes KW - S-waves KW - crust KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52470829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Empirical+path+corrections+for+regional-phase+amplitudes&rft.au=Phillips%2C+W+Scott&rft.aulast=Phillips&rft.aufirst=W&rft.date=1999-04-01&rft.volume=89&rft.issue=2&rft.spage=384&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 21 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - amplitude; Asia; attenuation; body waves; China; corrections; crust; earthquakes; elastic waves; equations; Far East; Gansu China; guided waves; kriging; Lanzhou China; Lg-waves; mantle; P-waves; S-waves; seismic networks; seismic waves; seismicity; seismograms; statistical analysis; surface waves; upper mantle ER - TY - JOUR T1 - Environment and behavior of 2.5-million-year-old Bouri hominids AN - 52463705; 1999-046613 JF - Science AU - de Heinzelin, Jean AU - Clark, J Desmond AU - White, Tim AU - Hart, William AU - Renne, Paul AU - WoldeGabriel, Giday AU - Beyene, Yonas AU - Vrba, Elisabeth Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 625 EP - 629 PB - American Association for the Advancement of Science, Washington, DC VL - 284 IS - 5414 SN - 0036-8075, 0036-8075 KW - type localities KW - diet KW - East Africa KW - behavior KW - Hata Member KW - Homo KW - Australopithecinae KW - artifacts KW - paleoecology KW - Cenozoic KW - Theria KW - Ethiopia KW - Bouri Formation KW - bones KW - outcrops KW - Eutheria KW - Australopithecus afarensis KW - Chordata KW - Awash Valley KW - Australopithecus KW - Mammalia KW - biologic evolution KW - faunal list KW - Primates KW - Hominidae KW - Tertiary KW - Neogene KW - fossil man KW - Pliocene KW - Africa KW - Vertebrata KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463705?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Environment+and+behavior+of+2.5-million-year-old+Bouri+hominids&rft.au=de+Heinzelin%2C+Jean%3BClark%2C+J+Desmond%3BWhite%2C+Tim%3BHart%2C+William%3BRenne%2C+Paul%3BWoldeGabriel%2C+Giday%3BBeyene%2C+Yonas%3BVrba%2C+Elisabeth&rft.aulast=de+Heinzelin&rft.aufirst=Jean&rft.date=1999-04-01&rft.volume=284&rft.issue=5414&rft.spage=625&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 18 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Africa; artifacts; Australopithecinae; Australopithecus; Australopithecus afarensis; Awash Valley; behavior; biologic evolution; bones; Bouri Formation; Cenozoic; Chordata; diet; East Africa; Ethiopia; Eutheria; faunal list; fossil man; Hata Member; Hominidae; Homo; Mammalia; Neogene; outcrops; paleoecology; Pliocene; Primates; Tertiary; Tetrapoda; Theria; type localities; Vertebrata ER - TY - JOUR T1 - Nonlinear mesoscopic elasticity; evidence for a new class of materials AN - 52226840; 2001-043809 JF - Physics Today AU - Guyer, Robert A AU - Johnson, Paul A Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 30 EP - 36 PB - American Institute of Physics, New York, NY VL - 52 IS - 4 SN - 0031-9228, 0031-9228 KW - elasticity KW - strain KW - waves KW - grain size KW - stress KW - non-linear materials KW - new data KW - elastic materials KW - rock mechanics KW - physical properties KW - materials KW - equations of state KW - rocks KW - earthquakes KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52226840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+Today&rft.atitle=Nonlinear+mesoscopic+elasticity%3B+evidence+for+a+new+class+of+materials&rft.au=Guyer%2C+Robert+A%3BJohnson%2C+Paul+A&rft.aulast=Guyer&rft.aufirst=Robert&rft.date=1999-04-01&rft.volume=52&rft.issue=4&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Physics+Today&rft.issn=00319228&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 17 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PHTOAD N1 - SubjectsTermNotLitGenreText - earthquakes; elastic materials; elasticity; equations of state; grain size; materials; new data; non-linear materials; physical properties; rock mechanics; rocks; strain; stress; waves ER - TY - JOUR T1 - Broadband investigation of recent large earthquakes in the Kamchatka subduction zone AN - 51208845; 2000-056768 JF - Seismological Research Letters AU - Malagnini, L AU - Ammon, Charles J AU - Velasco, A A AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 268 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - Russian Pacific region KW - focal mechanism KW - subduction zones KW - Kamchatka Peninsula KW - Green function KW - Russian Federation KW - rupture KW - Commonwealth of Independent States KW - time factor KW - broad-band spectra KW - Asia KW - Kamchatka earthquake 1952 KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51208845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Broadband+investigation+of+recent+large+earthquakes+in+the+Kamchatka+subduction+zone&rft.au=Malagnini%2C+L%3BAmmon%2C+Charles+J%3BVelasco%2C+A+A%3BMalone%2C+Steve+D&rft.aulast=Malagnini&rft.aufirst=L&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=268&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Asia; broad-band spectra; Commonwealth of Independent States; earthquakes; focal mechanism; Green function; Kamchatka earthquake 1952; Kamchatka Peninsula; rupture; Russian Federation; Russian Pacific region; subduction zones; time factor ER - TY - JOUR T1 - Automated high-accuracy hypocentral relocation for large seismicity catalogues AN - 51207476; 2000-056781 JF - Seismological Research Letters AU - Aster, R C AU - Rowe, C AU - Phillips, W S AU - Fehler, M C AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 270 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - spatial distribution KW - focal mechanism KW - seismicity KW - focus KW - catalogs KW - earthquakes KW - accuracy KW - automated analysis KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51207476?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Automated+high-accuracy+hypocentral+relocation+for+large+seismicity+catalogues&rft.au=Aster%2C+R+C%3BRowe%2C+C%3BPhillips%2C+W+S%3BFehler%2C+M+C%3BMalone%2C+Steve+D&rft.aulast=Aster&rft.aufirst=R&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=270&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - accuracy; automated analysis; catalogs; earthquakes; focal mechanism; focus; seismicity; spatial distribution ER - TY - JOUR T1 - The SAGE (Summer of Applied Geophysical Experience) Program; integration of education and research in geophysics AN - 51207388; 2000-056675 JF - Seismological Research Letters AU - Braile, Lawrence W AU - Jiracek, George R AU - Baldridge, W Scott AU - Ferguson, John R AU - Biehler, Shawn AU - Gilpin, Bernard J AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 248 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - Rio Grande Rift KW - North America KW - college-level education KW - experimental studies KW - geophysical methods KW - SAGE Program KW - education KW - research KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51207388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=The+SAGE+%28Summer+of+Applied+Geophysical+Experience%29+Program%3B+integration+of+education+and+research+in+geophysics&rft.au=Braile%2C+Lawrence+W%3BJiracek%2C+George+R%3BBaldridge%2C+W+Scott%3BFerguson%2C+John+R%3BBiehler%2C+Shawn%3BGilpin%2C+Bernard+J%3BMalone%2C+Steve+D&rft.aulast=Braile&rft.aufirst=Lawrence&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=248&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - college-level education; education; experimental studies; geophysical methods; North America; research; Rio Grande Rift; SAGE Program ER - TY - JOUR T1 - Fluid paths from precise microearthquake locations at the Soultz geothermal site AN - 51207209; 2000-056782 JF - Seismological Research Letters AU - Phillips, W S AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 271 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - Western Europe KW - Soultz-sous-Forets France KW - statistical analysis KW - Europe KW - Bas-Rhin France KW - cluster analysis KW - automated analysis KW - geothermal energy KW - France KW - geothermal fields KW - focus KW - microearthquakes KW - earthquakes KW - accuracy KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51207209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Fluid+paths+from+precise+microearthquake+locations+at+the+Soultz+geothermal+site&rft.au=Phillips%2C+W+S%3BMalone%2C+Steve+D&rft.aulast=Phillips&rft.aufirst=W&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - accuracy; automated analysis; Bas-Rhin France; cluster analysis; earthquakes; Europe; focus; France; geothermal energy; geothermal fields; microearthquakes; Soultz-sous-Forets France; statistical analysis; Western Europe ER - TY - JOUR T1 - Amplitude corrections for regional seismic discriminants AN - 51205092; 2000-056583 JF - Seismological Research Letters AU - Taylor, S R AU - Velasco, A A AU - Hartse, H E AU - Phillips, W S AU - Walter, William R AU - Rodgers, Arthur J AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 228 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - discriminant analysis KW - Q KW - identification KW - statistical analysis KW - elastic waves KW - frequency KW - corrections KW - seismic sources KW - earthquakes KW - Comprehensive Test Ban Treaty KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51205092?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=New+evidence+for+the+age+of+the+youngest+eruptions+in+the+Valles+Caldera%2C+New+Mexico&rft.au=Reneau%2C+Steven+L%3BGardner%2C+Jamie+N%3BForman%2C+Steven+L&rft.aulast=Reneau&rft.aufirst=Steven&rft.date=1996-01-01&rft.volume=24&rft.issue=1&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281996%290242.3.CO%3B2 LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - amplitude; Comprehensive Test Ban Treaty; corrections; discriminant analysis; earthquakes; elastic waves; frequency; identification; Q; seismic sources; statistical analysis ER - TY - JOUR T1 - Lattice BGK method for modeling acoustic wave propagation in strongly heterogeneous viscous media AN - 51204757; 2000-056744 JF - Seismological Research Letters AU - Huang, L J AU - Fehler, M C AU - He, X AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 263 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - numerical analysis KW - finite difference analysis KW - phononic lattice solid by interpolation KW - viscous materials KW - statistical analysis KW - geophysical methods KW - elastic waves KW - models KW - acoustical methods KW - BGK method KW - relaxation time KW - propagation KW - seismic waves KW - acoustical waves KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51204757?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Lattice+BGK+method+for+modeling+acoustic+wave+propagation+in+strongly+heterogeneous+viscous+media&rft.au=Huang%2C+L+J%3BFehler%2C+M+C%3BHe%2C+X%3BMalone%2C+Steve+D&rft.aulast=Huang&rft.aufirst=L&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - acoustical methods; acoustical waves; BGK method; elastic waves; finite difference analysis; geophysical methods; models; numerical analysis; phononic lattice solid by interpolation; propagation; relaxation time; seismic waves; statistical analysis; viscous materials ER - TY - JOUR T1 - Envelope broadening of outgoing waves in random media; a comparison between the Markov approximation and 2D numerical simulations AN - 51204219; 2000-056748 JF - Seismological Research Letters AU - Fehler, M C AU - Sato, H AU - Huang, L J AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 264 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - body waves KW - Far East KW - finite difference analysis KW - statistical analysis KW - Markov approximation KW - elastic waves KW - simulation KW - two-dimensional models KW - heterogeneous materials KW - propagation KW - seismic waves KW - Asia KW - earthquakes KW - S-waves KW - Japan KW - backscattering KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51204219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Envelope+broadening+of+outgoing+waves+in+random+media%3B+a+comparison+between+the+Markov+approximation+and+2D+numerical+simulations&rft.au=Fehler%2C+M+C%3BSato%2C+H%3BHuang%2C+L+J%3BMalone%2C+Steve+D&rft.aulast=Fehler&rft.aufirst=M&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=264&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Asia; backscattering; body waves; earthquakes; elastic waves; Far East; finite difference analysis; heterogeneous materials; Japan; Markov approximation; propagation; S-waves; seismic waves; simulation; statistical analysis; two-dimensional models ER - TY - JOUR T1 - Empirical scaling relations for contained single-fired chemical explosions and delay-fired mining explosions at regional distances AN - 51203664; 2000-056506 JF - Seismological Research Letters AU - Stump, B W AU - Pearson, D C AU - Hsu, V AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 212 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - seismograms KW - scale factor KW - mining KW - monitoring KW - explosions KW - chemical explosions KW - magnitude KW - waveforms KW - frequency KW - seismic sources KW - mining geology KW - seismic networks KW - nuclear explosions KW - accuracy KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51203664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Empirical+scaling+relations+for+contained+single-fired+chemical+explosions+and+delay-fired+mining+explosions+at+regional+distances&rft.au=Stump%2C+B+W%3BPearson%2C+D+C%3BHsu%2C+V%3BMalone%2C+Steve+D&rft.aulast=Stump&rft.aufirst=B&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=212&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - accuracy; chemical explosions; Comprehensive Test Ban Treaty; explosions; frequency; magnitude; mining; mining geology; monitoring; nuclear explosions; scale factor; seismic networks; seismic sources; seismograms; waveforms ER - TY - JOUR T1 - Amplitude tomography for regional seismic verification AN - 51202859; 2000-056586 JF - Seismological Research Letters AU - Phillips, W S AU - Hartse, H E AU - Taylor, S R AU - Velasco, A A AU - Randall, G E AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 229 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - tomography KW - Far East KW - discriminant analysis KW - Jacobi conjugate gradient KW - statistical analysis KW - mantle KW - elastic waves KW - attenuation KW - seismic waves KW - Asia KW - China KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51202859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Amplitude+tomography+for+regional+seismic+verification&rft.au=Phillips%2C+W+S%3BHartse%2C+H+E%3BTaylor%2C+S+R%3BVelasco%2C+A+A%3BRandall%2C+G+E%3BMalone%2C+Steve+D&rft.aulast=Phillips&rft.aufirst=W&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - amplitude; Asia; attenuation; China; discriminant analysis; elastic waves; Far East; Jacobi conjugate gradient; mantle; seismic waves; statistical analysis; tomography ER - TY - JOUR T1 - Seismic velocity structure in western China from surface wave dispersion AN - 51202568; 2000-056702 JF - Seismological Research Letters AU - Ketter, B S AU - Velasco, A A AU - Randall, G E AU - Ammon, Charles J AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 254 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - raypaths KW - Lop Nor Test Site KW - dispersivity KW - Far East KW - site exploration KW - Tien Shan KW - elastic waves KW - surface waves KW - Love waves KW - thickness KW - propagation KW - Asia KW - China KW - seismograms KW - focal mechanism KW - guided waves KW - group velocity KW - Rayleigh waves KW - depth KW - moment tensors KW - velocity structure KW - seismic waves KW - earthquakes KW - crust KW - 19:Seismology KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51202568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Seismic+velocity+structure+in+western+China+from+surface+wave+dispersion&rft.au=Ketter%2C+B+S%3BVelasco%2C+A+A%3BRandall%2C+G+E%3BAmmon%2C+Charles+J%3BMalone%2C+Steve+D&rft.aulast=Ketter&rft.aufirst=B&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=254&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Asia; China; crust; depth; dispersivity; earthquakes; elastic waves; Far East; focal mechanism; group velocity; guided waves; Lop Nor Test Site; Love waves; moment tensors; propagation; Rayleigh waves; raypaths; seismic waves; seismograms; site exploration; surface waves; thickness; Tien Shan; velocity structure ER - TY - JOUR T1 - Seismic characterization of tunneling activity at the Yucca Mountain exploratory studies facility AN - 51202353; 2000-056535 JF - Seismological Research Letters AU - Steck, L K AU - Fehler, M C AU - Baker, D F AU - Edwards, C L AU - Cogbill, A H AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 218 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - seismograms KW - digital data KW - elastic waves KW - tunneling KW - frequency KW - wave fields KW - Nye County Nevada KW - Exploratory Studies Facility KW - seismicity KW - tunnel boring machines KW - seismic waves KW - seismic networks KW - Yucca Mountain KW - Nevada KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51202353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Seismic+characterization+of+tunneling+activity+at+the+Yucca+Mountain+exploratory+studies+facility&rft.au=Steck%2C+L+K%3BFehler%2C+M+C%3BBaker%2C+D+F%3BEdwards%2C+C+L%3BCogbill%2C+A+H%3BMalone%2C+Steve+D&rft.aulast=Steck&rft.aufirst=L&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=218&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - digital data; elastic waves; Exploratory Studies Facility; frequency; Nevada; Nye County Nevada; seismic networks; seismic waves; seismicity; seismograms; tunnel boring machines; tunneling; United States; wave fields; Yucca Mountain ER - TY - JOUR T1 - Broadband modeling of non-linear soil response for the 1994 Northridge, California, earthquake AN - 51200502; 2000-056570 JF - Seismological Research Letters AU - Jones, E M AU - Olsen, K B AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 226 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - soils KW - California KW - three-dimensional models KW - finite difference analysis KW - statistical analysis KW - ground motion KW - broad-band spectra KW - San Fernando Valley KW - Northridge earthquake 1994 KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51200502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Broadband+modeling+of+non-linear+soil+response+for+the+1994+Northridge%2C+California%2C+earthquake&rft.au=Jones%2C+E+M%3BOlsen%2C+K+B%3BMalone%2C+Steve+D&rft.aulast=Jones&rft.aufirst=E&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=226&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - broad-band spectra; California; earthquakes; finite difference analysis; ground motion; Northridge earthquake 1994; San Fernando Valley; soils; statistical analysis; three-dimensional models; United States ER - TY - JOUR T1 - Path corrections, kriging, and regional seismic event location in China AN - 51199232; 2000-056588 JF - Seismological Research Letters AU - Steck, L K AU - Velasco, A A AU - Cogbill, A H AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 229 EP - 230 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - seismograms KW - P-waves KW - body waves KW - Far East KW - statistical analysis KW - kriging KW - elastic waves KW - noise KW - traveltime KW - propagation KW - seismic waves KW - corrections KW - western China KW - Asia KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51199232?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Path+corrections%2C+kriging%2C+and+regional+seismic+event+location+in+China&rft.au=Steck%2C+L+K%3BVelasco%2C+A+A%3BCogbill%2C+A+H%3BMalone%2C+Steve+D&rft.aulast=Steck&rft.aufirst=L&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Asia; body waves; China; corrections; elastic waves; Far East; kriging; noise; P-waves; propagation; seismic waves; seismograms; statistical analysis; traveltime; western China ER - TY - JOUR T1 - An unusual seismic event from Qinghai Province, China AN - 51199177; 2000-056584 JF - Seismological Research Letters AU - Hartse, H E AU - Velasco, A A AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 228 EP - 229 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - seismograms KW - Far East KW - guided waves KW - magnitude KW - elastic waves KW - teleseismic signals KW - shallow depth KW - surface waves KW - seismicity KW - Qinghai China KW - seismic waves KW - Asia KW - earthquakes KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51199177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=An+unusual+seismic+event+from+Qinghai+Province%2C+China&rft.au=Hartse%2C+H+E%3BVelasco%2C+A+A%3BMalone%2C+Steve+D&rft.aulast=Hartse&rft.aufirst=H&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=228&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA-99, 94th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Asia; China; earthquakes; elastic waves; Far East; guided waves; magnitude; Qinghai China; seismic waves; seismicity; seismograms; shallow depth; surface waves; teleseismic signals ER - TY - JOUR T1 - Flow cytometry: a versatile tool for all phases of drug discovery AN - 17402000; 4632950 AB - The applications of flow cytometry are being extended beyond cells into molecular interactions and genomic analyses. The authors explain how instrumentation and reagent development are combining to improve flow cytometric throughput by orders of magnitude beyond that possible just a few years ago, such that the combination of sensitivity, throughput and versatility makes flow cytometry an analytical platform with applications at all stages of drug discovery. JF - Drug Discovery Today AU - Nolan, J P AU - Lauer, S AU - Prossnitz, E R AU - Sklar, LA AD - National Flow Cytometry Resource, Life Sciences Division, LS-5, M-888, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, nolan@telomere.lanl.gov Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 173 EP - 180 VL - 4 IS - 4 SN - 1359-6446, 1359-6446 KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Flow cytometry KW - Drug discovery KW - Reviews KW - W3 33250:Methods: Others KW - W 30965:Miscellaneous, Reviews KW - W3 33000:General topics and reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17402000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Drug+Discovery+Today&rft.atitle=Flow+cytometry%3A+a+versatile+tool+for+all+phases+of+drug+discovery&rft.au=Nolan%2C+J+P%3BLauer%2C+S%3BProssnitz%2C+E+R%3BSklar%2C+LA&rft.aulast=Nolan&rft.aufirst=J&rft.date=1999-04-01&rft.volume=4&rft.issue=4&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Drug+Discovery+Today&rft.issn=13596446&rft_id=info:doi/10.1016%2FS1359-6446%2899%2901320-3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Flow cytometry; Drug discovery; Reviews DO - http://dx.doi.org/10.1016/S1359-6446(99)01320-3 ER - TY - JOUR T1 - Factors influencing uranium reduction and solubility in evaporation pond sediments AN - 17375293; 4582798 AB - Evaporation ponds in the San Joaquin Valley (SJV), CA, USA that are used for the disposal of irrigation drainage waters, contain elevated levels of U that may be a threat to pond wildlife. The ponds support euryhaline algae, which become incorporated in the sediments as depositional organic matter (OM) - facilitating reducing conditions. Our earlier studies have shown that U in one SJV sediment was primarily present as the highly soluble U(VI) species (as opposed to the less soluble U(IV) species), despite the presence of volatile sulfides. In this research, we investigated the effects of native pond algae (Chlorella) and potential reducing agents on U redox chemistry of SJV pond sediments. San Joaquin Valley pond sediments were equilibrated with natural and synthetic pond inlet waters containing approximately 10 mg U(VI) L-1 to which reducing agents (acetate, sucrose, and alfalfa shoot) were added. The equilibrations were done under oxic (Chlorella only) and O2-limiting conditions (remaining treatments). Sediments were examined for changes in average U oxidation state by X-ray near- edge absorption structure (XANES) spectroscopy and U concentration by ICP-MS. JF - Biogeochemistry AU - Duff, M C AU - Hunter, D B AU - Bertsch, P M AU - Amrhein, C AD - Chemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA (Presently with the Advanced Analytical Center for Environmental Sciences (AACES), Savannah River Ecology Laboratory, University of Georgia, Drawer E, Aiken, SC 29802, USA), martine@srel.edu Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 95 EP - 114 PB - Kluwer Academic Publishers VL - 45 IS - 1 SN - 0168-2563, 0168-2563 KW - Chlorella KW - USA, California, San Joaquin Valley KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Sediment pollution KW - Solubility KW - Evaporation KW - Irrigation KW - Spectroscopy KW - Sediments KW - Ponds KW - Chemical Reduction KW - Uranium KW - Chemical speciation KW - Oxidation KW - Irrigation Water KW - USA, California KW - Radioactivity KW - Drainage Water KW - Drainage water KW - Algae KW - P 8000:RADIATION KW - Q2 09187:Geochemistry of sediments KW - SW 3020:Sources and fate of pollution KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17375293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biogeochemistry&rft.atitle=Factors+influencing+uranium+reduction+and+solubility+in+evaporation+pond+sediments&rft.au=Duff%2C+M+C%3BHunter%2C+D+B%3BBertsch%2C+P+M%3BAmrhein%2C+C&rft.aulast=Duff&rft.aufirst=M&rft.date=1999-04-01&rft.volume=45&rft.issue=1&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Biogeochemistry&rft.issn=01682563&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Solubility; Chemical speciation; Uranium; Drainage water; Algae; Evaporation; Oxidation; Irrigation; Radioactivity; Spectroscopy; Ponds; Chemical Reduction; Irrigation Water; Drainage Water; Sediments; USA, California ER - TY - JOUR T1 - Nonstationary stochastic analysis of transient unsaturated flow in randomly heterogeneous media AN - 17268127; 4570249 AB - In this study, a first-order, nonstationary stochastic model of transient flow is developed which is applicable to the entire domain of a bounded vadose zone in the presence of sink/source. We derive general equations governing the statistical moments of the flow quantities by perturbation expansions. Owing to the mathematical complexity of the equations, in general we need to solve them numerically. The numerical moment equation approach, however, has the flexibility in handling different boundary conditions, flow configurations, input covariance structures, and soil constitutive relationships. The moment equations presented in this study are simpler and easier to solve than those in the literature for transient unsaturated flow. We solve these moment equations by the method of finite differences and demonstrate the developed model through some one- and two-dimensional examples under various transient conditions. JF - Water Resources Research AU - Zhang, Dongxiao AD - Geoanalysis Group, Los Alamos National Laboratory, Los Alamos, New Mexico, USA Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 1127 EP - 1141 PB - American Geophysical Union VL - 35 IS - 4 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts KW - Permeability KW - Finite difference methods KW - Porosity KW - Unsaturated flow KW - Statistical analysis KW - Vadose water KW - Boundary conditions KW - Porous media KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17268127?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Nonstationary+stochastic+analysis+of+transient+unsaturated+flow+in+randomly+heterogeneous+media&rft.au=Zhang%2C+Dongxiao&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1999-04-01&rft.volume=35&rft.issue=4&rft.spage=1127&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Permeability; Finite difference methods; Unsaturated flow; Porosity; Statistical analysis; Vadose water; Boundary conditions; Porous media ER - TY - JOUR T1 - Wide distribution and diversity of members of the bacterial kingdom Acidobacterium in the environment AN - 17231410; 4512094 AB - To assess the distribution and diversity of members of the recently identified bacterial kingdom Acidobacterium, members of this kingdom present in 43 environmental samples were surveyed by PCR amplification. A primer designed to amplify rRNA gene sequences (ribosomal DNAs [rDNAs]) from most known members of the kingdom was used to interrogate bulk DNA extracted from the samples. Positive PCR results were obtained with all temperate soil and sediment samples tested, as well as some hot spring samples, indicating that members of this kingdom are very widespread in terrestrial environments. PCR primers specific for four phylogenetic subgroups within the kingdom were used in similar surveys. All four subgroups were detected in most neutral soils and some sediments, while only two of the groups were seen in most low-pH environments. The combined use of these primers allowed identification of a novel lineage within the kingdom in a hot spring environment. Phylogenetic analysis of rDNA sequences from our survey and the literature outlines at least six major subgroups within the kingdom. Taken together, these data suggest that members of the Acidobacterium kingdom are as genetically and metabolically diverse, environmentally widespread and perhaps as ecologically important as the well-known Proteobacteria and gram-positive bacterial kingdoms. JF - Applied and Environmental Microbiology AU - Barns, S M AU - Takala, ShL AU - Kuske, ChR AD - M888, Life Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, sbarns@lanl.gov. Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 1731 EP - 1737 VL - 65 IS - 4 SN - 0099-2240, 0099-2240 KW - rRNA KW - Microbiology Abstracts B: Bacteriology KW - Phylogeny KW - Terrestrial environments KW - Polymerase chain reaction KW - Acidobacterium KW - Sediments KW - Soil microorganisms KW - J 02710:Identification, taxonomy and typing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17231410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Wide+distribution+and+diversity+of+members+of+the+bacterial+kingdom+Acidobacterium+in+the+environment&rft.au=Barns%2C+S+M%3BTakala%2C+ShL%3BKuske%2C+ChR&rft.aulast=Barns&rft.aufirst=S&rft.date=1999-04-01&rft.volume=65&rft.issue=4&rft.spage=1731&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Acidobacterium; Terrestrial environments; Phylogeny; Soil microorganisms; Sediments; Polymerase chain reaction ER - TY - JOUR T1 - Levels of bacterial community diversity in four arid soils compared by cultivation and 16S rRNA gene cloning AN - 17225778; 4512090 AB - Techniques based on amplification of 16S rRNA genes for comparing bacterial communities are now widely used in microbial ecology, but calibration of these techniques with traditional tools, such as cultivation, has been conspicuously absent. In this study, we compared levels of bacterial community diversity in two pinyon rhizosphere soil samples and two between-tree (interspace) soil samples by analyzing 179 cultivated bacterial isolates and 801 16S rRNA genes amplified from extracted soil DNA. Phylotypes were defined by performing a restriction fragment length polymorphism analysis of 16S rRNA gene sequences with the enzymes RsaI and BstUI. The average level of 16S rRNA gene sequence similarity of members of a phylotype was 86.6% based on an analysis of partial sequences. A total of 498 phylotypes were identified among the 16S ribosomal DNA (rDNA) clones, while 34 phylotypes occurred among the cultivated isolates. Analysis of sequences from a subset of the phylotypes showed that at least seven bacterial divisions were represented in the clone libraries, whereas the isolates represented only three. The phylotype richness, frequency distribution (evenness), and composition of the four culture collections and the four clone libraries were investigated by using a variety of diversity indices. Although cultivation and 16S rRNA cloning analyses gave contradictory descriptions of the relative phylotype richness for one of the four environments, the two methods identified qualitatively consistent relationships when levels of evenness were compared. The levels of phylotype similarity between communities were uniformly low (15 to 31%). Both methods consistently indicated that one environment was distinct from the other three. Our data illustrate that while 16S rDNA cloning and cultivation generally describe similar relationships between soil microbial communities, significant discrepancies can occur. JF - Applied and Environmental Microbiology AU - Dunbar, J AU - Takala, Sh AU - Barns, S M AU - Davis, JA AU - Kuske, ChR AD - Environmental Molecular Biology Group, M888, Life Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, kuske@lanl.gov Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 1662 EP - 1669 VL - 65 IS - 4 SN - 0099-2240, 0099-2240 KW - bacteria KW - rRNA 16S KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Culture KW - Soil microorganisms KW - Gene libraries KW - Soil fauna KW - Biotyping KW - Bacteria KW - Restriction fragment length polymorphism KW - Community composition KW - A 01047:General KW - G 07320:Bacterial genetics KW - J 02710:Identification, taxonomy and typing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17225778?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Levels+of+bacterial+community+diversity+in+four+arid+soils+compared+by+cultivation+and+16S+rRNA+gene+cloning&rft.au=Dunbar%2C+J%3BTakala%2C+Sh%3BBarns%2C+S+M%3BDavis%2C+JA%3BKuske%2C+ChR&rft.aulast=Dunbar&rft.aufirst=J&rft.date=1999-04-01&rft.volume=65&rft.issue=4&rft.spage=1662&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Soil fauna; Culture; Soil microorganisms; Community composition; Gene libraries; Restriction fragment length polymorphism; Biotyping; Bacteria ER - TY - JOUR T1 - Observation of contemporaneous optical radiation from a gamma -ray burst AN - 1266749902; 14051514 AB - The origin of gamma -ray bursts (GRBs) has been enigmatic since their discovery. The situation improved dramatically in 1997, when the rapid availability of precise coordinates, for the bursts allowed the detection of faint optical and radio afterglows -- optical spectra thus obtained have demonstrated conclusively that the bursts occur at cosmological distances. But, despite efforts by several groups, optical detection has not hitherto been achieved during the brief duration of a burst. Here we report the detection of bright optical emission from GRB990123 while the burst was still in progress. Our observations begin 22 seconds after the onset of the burst and show an increase in brightness by a factor of 14 during the first 25 seconds; the brightness then declines by a factor of 100, at which point (700 seconds after the burst onset) it falls below our detection threshold. The redshift of this burst, z approximately 1.6 (refs 8, 9), implies a peak optical luminosity of 5 1049ergs-1. Optical emission from gamma -ray bursts has been generally thought to take place at the shock fronts generated by interaction of the primary energy source with the surrounding medium, where the gamma -rays might also be produced. The lack of a significant change in the gamma -ray light curve when the optical emission develops suggests that the gamma -rays are not produced at the shock front, but closer to the site of the original explosion. JF - Nature AU - Akerlof, C AU - Balsano, R AU - Barthelmy, S AU - Bloch, J AU - Butterworth, P AU - Casperson, D AU - Cline, T AU - Fletcher, S AU - Frontera, F AU - Gisler, G AU - Heise, J AU - Hills, J AU - Kehoe, R AU - Lee, B AU - Marshall, S AU - McKay, T AU - Miller, R AU - Piro, L AU - Priedhorsky, W AU - Szymanski, J AU - Wren, J AD - Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA Y1 - 1999/04/01/ PY - 1999 DA - 1999 Apr 01 SP - 400 EP - 402 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 398 IS - 6726 SN - 0028-0836, 0028-0836 KW - Solid State and Superconductivity Abstracts (SO); Mechanical & Transportation Engineering Abstracts (MT); METADEX (MD); Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Electronics and Communications Abstracts (EA); Computer and Information Systems Abstracts (CI); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Availability KW - Brightness KW - Bursting KW - Emission KW - Explosions KW - Optical radiation KW - Shock fronts KW - Spectra KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1266749902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Observation+of+contemporaneous+optical+radiation+from+a+gamma+-ray+burst&rft.au=Akerlof%2C+C%3BBalsano%2C+R%3BBarthelmy%2C+S%3BBloch%2C+J%3BButterworth%2C+P%3BCasperson%2C+D%3BCline%2C+T%3BFletcher%2C+S%3BFrontera%2C+F%3BGisler%2C+G%3BHeise%2C+J%3BHills%2C+J%3BKehoe%2C+R%3BLee%2C+B%3BMarshall%2C+S%3BMcKay%2C+T%3BMiller%2C+R%3BPiro%2C+L%3BPriedhorsky%2C+W%3BSzymanski%2C+J%3BWren%2C+J&rft.aulast=Akerlof&rft.aufirst=C&rft.date=1999-04-01&rft.volume=398&rft.issue=6726&rft.spage=400&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/10.1038%2F18837 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-01-07 DO - http://dx.doi.org/10.1038/18837 ER - TY - JOUR T1 - Correlation between structure and thermodynamics of actinyl AN - 52377756; 2000-027581 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Runde, W AU - Morss, L R Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 144 PB - American Chemical Society, Washington, DC VL - 217, Part 2 SN - 0065-7727, 0065-7727 KW - halides KW - X-ray diffraction data KW - complexing KW - crystal structure KW - migration of elements KW - solubility KW - molecular structure KW - luminescence KW - metals KW - chemical properties KW - thermodynamic properties KW - geochemistry KW - aquatic environment KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52377756?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Correlation+between+structure+and+thermodynamics+of+actinyl&rft.au=Runde%2C+W%3BMorss%2C+L+R&rft.aulast=Runde&rft.aufirst=W&rft.date=1999-03-01&rft.volume=217%2C+Part+2&rft.issue=&rft.spage=144&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 217th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; aquatic environment; chemical properties; complexing; crystal structure; geochemistry; halides; luminescence; metals; migration of elements; molecular structure; solubility; thermodynamic properties; X-ray diffraction data ER - TY - JOUR T1 - Unsaturated zone transport test, Busted Butte, Nevada AN - 52320091; 2000-062592 JF - Journal of Conference Abstracts AU - Bussod, Gilles Y A AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 528 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - United States KW - fractured materials KW - isotopes KW - site exploration KW - analog simulation KW - well-logging KW - unsaturated zone KW - cores KW - radioactive waste KW - Cenozoic KW - Nevada Test Site KW - laboratory studies KW - radioactive isotopes KW - transport KW - tracers KW - Calico Hills Formation KW - Yucca Mountain KW - Nevada KW - disposal barriers KW - experimental studies KW - pollution KW - migration of elements KW - Nye County Nevada KW - Miocene KW - Topopah Spring Member KW - Tertiary KW - boreholes KW - Neogene KW - infiltration KW - theoretical models KW - testing KW - Busted Butte KW - waste disposal KW - underground disposal KW - permeability KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52320091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Conference+Abstracts&rft.atitle=Unsaturated+zone+transport+test%2C+Busted+Butte%2C+Nevada&rft.au=Bussod%2C+Gilles+Y+A%3BAnonymous&rft.aulast=Bussod&rft.aufirst=Gilles+Y&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=528&rft.isbn=&rft.btitle=&rft.title=Journal+of+Conference+Abstracts&rft.issn=13620886&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - European Union of Geosciences conference; EUG 10 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 1 N1 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - analog simulation; boreholes; Busted Butte; Calico Hills Formation; Cenozoic; cores; disposal barriers; experimental studies; field studies; fractured materials; infiltration; isotopes; laboratory studies; migration of elements; Miocene; Neogene; Nevada; Nevada Test Site; Nye County Nevada; permeability; pollution; radioactive isotopes; radioactive waste; site exploration; Tertiary; testing; theoretical models; Topopah Spring Member; tracers; transport; underground disposal; United States; unsaturated zone; waste disposal; well-logging; Yucca Mountain ER - TY - JOUR T1 - Transport and attenuation of carboxylate-modified-latex microspheres in fractured rock field tracer tests AN - 52288159; 2001-002120 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Reimus, P W AU - Becker, M V AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 EP - unpaginated PB - American Chemical Society, Washington, DC VL - 217 IS - Part 1 SN - 0065-7727, 0065-7727 KW - solute transport KW - fractured materials KW - colloidal materials KW - pollutants KW - solutes KW - pollution KW - porous materials KW - migration of elements KW - transport KW - residence time KW - tracers KW - mobility KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52288159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Transport+and+attenuation+of+carboxylate-modified-latex+microspheres+in+fractured+rock+field+tracer+tests&rft.au=Reimus%2C+P+W%3BBecker%2C+M+V%3BAnonymous&rft.aulast=Reimus&rft.aufirst=P&rft.date=1999-03-01&rft.volume=217&rft.issue=Part+1&rft.spage=&rft.isbn=0841236720&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Chemical Society 217th national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - SuppNotes - ENVR059 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - colloidal materials; fractured materials; migration of elements; mobility; pollutants; pollution; porous materials; residence time; solute transport; solutes; tracers; transport ER - TY - JOUR T1 - Modeling adsorption, dissolution, and precipitation in aqueous Co(II)/aluminous mineral systems AN - 52278005; 2001-002180 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Thompson, Hillary A AU - Parks, George A AU - Brown, Gordon E AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 EP - unpaginated PB - American Chemical Society, Washington, DC VL - 217 IS - Part 1 SN - 0065-7727, 0065-7727 KW - silicates KW - liquid phase KW - sorption KW - cobalt KW - suspended materials KW - kaolinite KW - aqueous solutions KW - adsorption KW - solubility KW - EXAFS KW - equilibrium KW - TEM data KW - clay minerals KW - dissolved materials KW - precipitation KW - metals KW - sheet silicates KW - spectroscopy KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52278005?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Modeling+adsorption%2C+dissolution%2C+and+precipitation+in+aqueous+Co%28II%29%2Faluminous+mineral+systems&rft.au=Thompson%2C+Hillary+A%3BParks%2C+George+A%3BBrown%2C+Gordon+E%3BAnonymous&rft.aulast=Thompson&rft.aufirst=Hillary&rft.date=1999-03-01&rft.volume=217&rft.issue=Part+1&rft.spage=&rft.isbn=0841236720&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Chemical Society 217th national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; aqueous solutions; clay minerals; cobalt; dissolved materials; equilibrium; EXAFS; kaolinite; liquid phase; metals; precipitation; sheet silicates; silicates; solubility; sorption; spectroscopy; suspended materials; TEM data ER - TY - JOUR T1 - Discrete particle modeling of volcanogenic high-concentration mass flows AN - 52249117; 2001-029681 JF - Journal of Conference Abstracts AU - Straub, Stephen AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 614 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - experimental studies KW - grain size KW - non-linear materials KW - mechanical properties KW - models KW - laboratory studies KW - physical properties KW - volcaniclastics KW - debris avalanches KW - pyroclastic flows KW - volcanism KW - eruptions KW - mass movements KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52249117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Conference+Abstracts&rft.atitle=Discrete+particle+modeling+of+volcanogenic+high-concentration+mass+flows&rft.au=Straub%2C+Stephen%3BAnonymous&rft.aulast=Straub&rft.aufirst=Stephen&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=614&rft.isbn=&rft.btitle=&rft.title=Journal+of+Conference+Abstracts&rft.issn=13620886&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - European Union of Geosciences conference; EUG 10 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - debris avalanches; eruptions; experimental studies; grain size; laboratory studies; mass movements; mechanical properties; models; non-linear materials; physical properties; pyroclastic flows; volcaniclastics; volcanism ER - TY - JOUR T1 - Textural studies of altered/metamorphosed tuffs and secondary REE-, Zr- and Y- minerals; SEM examinations AN - 52233207; 2001-038741 JF - Journal of Conference Abstracts AU - Obenholzner, J H AU - Heiken, G AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 684 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - metaigneous rocks KW - alteration KW - secondary minerals KW - textures KW - zirconium KW - lithification KW - emplacement KW - metatuff KW - volcaniclastics KW - volcanism KW - metals KW - eruptions KW - metamorphic rocks KW - rare earths KW - mineral assemblages KW - volcanic ash KW - trace elements KW - geochemistry KW - SEM data KW - yttrium KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52233207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Conference+Abstracts&rft.atitle=Textural+studies+of+altered%2Fmetamorphosed+tuffs+and+secondary+REE-%2C+Zr-+and+Y-+minerals%3B+SEM+examinations&rft.au=Obenholzner%2C+J+H%3BHeiken%2C+G%3BAnonymous&rft.aulast=Obenholzner&rft.aufirst=J&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=684&rft.isbn=&rft.btitle=&rft.title=Journal+of+Conference+Abstracts&rft.issn=13620886&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - European Union of Geosciences conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 2 N1 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alteration; emplacement; eruptions; geochemistry; lithification; metaigneous rocks; metals; metamorphic rocks; metatuff; mineral assemblages; rare earths; secondary minerals; SEM data; textures; trace elements; volcanic ash; volcaniclastics; volcanism; yttrium; zirconium ER - TY - JOUR T1 - Late Devonian diamictite in the Central Appalachians; cataclysmic disruption of the shore AN - 52144594; 2002-018590 JF - Abstracts with Programs - Geological Society of America AU - Woodrow, Donald L AU - Sevon, William D AU - Richardson, John B AU - Attrep, Moses, Jr AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 81 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 2 SN - 0016-7592, 0016-7592 KW - United States KW - erosion KW - sandstone KW - bolides KW - Appalachians KW - relief KW - Charlevoix Crater KW - meteors KW - laminite KW - sedimentary rocks KW - diamictite KW - Central Appalachians KW - Appalachian Basin KW - glacial environment KW - thickness KW - miospores KW - Maryland KW - depositional environment KW - estuarine environment KW - West Virginia KW - Upper Devonian KW - North America KW - mudstone KW - Paleozoic KW - clasts KW - lithofacies KW - Devonian KW - palynomorphs KW - Pennsylvania KW - clastic rocks KW - microfossils KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52144594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Late+Devonian+diamictite+in+the+Central+Appalachians%3B+cataclysmic+disruption+of+the+shore&rft.au=Woodrow%2C+Donald+L%3BSevon%2C+William+D%3BRichardson%2C+John+B%3BAttrep%2C+Moses%2C+Jr%3BAnonymous&rft.aulast=Woodrow&rft.aufirst=Donald&rft.date=1999-03-01&rft.volume=31&rft.issue=2&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 34rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Appalachian Basin; Appalachians; bolides; Central Appalachians; Charlevoix Crater; clastic rocks; clasts; depositional environment; Devonian; diamictite; erosion; estuarine environment; glacial environment; laminite; lithofacies; Maryland; meteors; microfossils; miospores; mudstone; North America; Paleozoic; palynomorphs; Pennsylvania; relief; sandstone; sedimentary rocks; thickness; United States; Upper Devonian; West Virginia ER - TY - JOUR T1 - Micro-X-ray absorption spectroscopy studies with sorbed plutonium on Yucca Mountain Tuff AN - 52075962; 2002-063578 JF - Abstracts with Programs - Geological Society of America AU - Duff, Martine C AU - Hunter, Douglas B AU - Bertsch, Paul M AU - Sutton, Steve R AU - Newville, Matt AU - Eng, Peter AU - Triay, Ines R AU - Vaniman, David T AU - Chipera, S AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 14 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 3 SN - 0016-7592, 0016-7592 KW - United States KW - sorption KW - volcanic rocks KW - pollutants KW - plutonium KW - igneous rocks KW - pollution KW - Nye County Nevada KW - X-ray spectra KW - ground water KW - pyroclastics KW - precipitation KW - metals KW - tuff KW - spectra KW - waste disposal KW - chemical composition KW - Yucca Mountain KW - geochemistry KW - actinides KW - Nevada KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52075962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Micro-X-ray+absorption+spectroscopy+studies+with+sorbed+plutonium+on+Yucca+Mountain+Tuff&rft.au=Duff%2C+Martine+C%3BHunter%2C+Douglas+B%3BBertsch%2C+Paul+M%3BSutton%2C+Steve+R%3BNewville%2C+Matt%3BEng%2C+Peter%3BTriay%2C+Ines+R%3BVaniman%2C+David+T%3BChipera%2C+S%3BAnonymous&rft.aulast=Duff&rft.aufirst=Martine&rft.date=1999-03-01&rft.volume=31&rft.issue=3&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Southeastern Section, 48th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; chemical composition; chemical fractionation; geochemistry; ground water; igneous rocks; metals; Nevada; Nye County Nevada; plutonium; pollutants; pollution; precipitation; pyroclastics; sorption; spectra; tuff; United States; volcanic rocks; waste disposal; X-ray spectra; Yucca Mountain ER - TY - JOUR T1 - Structural geology of the northwestern portion of Los Alamos National Laboratory, Rio Grande Rift, New Mexico; implications for seismic surface rupture potential from TA-3 to TA-55 AN - 51942105; 2003-067336 JF - LA - Los Alamos Scientific Laboratory AU - Gardner, J N AU - WoldeGabriel, G AU - Krier, D AU - Vaniman, D AU - Caporuscio, F Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 120 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - North America KW - Quaternary KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - seismic response KW - Holocene KW - Rio Grande Rift KW - Cenozoic KW - rupture KW - safety KW - neotectonics KW - seismicity KW - nuclear facilities KW - tectonics KW - earthquakes KW - seismotectonics KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51942105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Gardner%2C+J+N%3BWoldeGabriel%2C+G%3BKrier%2C+D%3BVaniman%2C+D%3BCaporuscio%2C+F&rft.aulast=Gardner&rft.aufirst=J&rft.date=1999-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Structural+geology+of+the+northwestern+portion+of+Los+Alamos+National+Laboratory%2C+Rio+Grande+Rift%2C+New+Mexico%3B+implications+for+seismic+surface+rupture+potential+from+TA-3+to+TA-55&rft.title=Structural+geology+of+the+northwestern+portion+of+Los+Alamos+National+Laboratory%2C+Rio+Grande+Rift%2C+New+Mexico%3B+implications+for+seismic+surface+rupture+potential+from+TA-3+to+TA-55&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2003-01-01 N1 - Availability - National Technical Information Service, (703)685-6900, order number DE00008197NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - Cenozoic; earthquakes; Holocene; Los Alamos County New Mexico; Los Alamos National Laboratory; neotectonics; New Mexico; North America; nuclear facilities; Quaternary; Rio Grande Rift; rupture; safety; seismic response; seismicity; seismotectonics; tectonics; United States ER - TY - JOUR T1 - Evidence from (super 10) Be and U-series disequilibia on the possible contamination of MORB glasses by sedimentary material AN - 51918665; 2003-084526 JF - Journal of Conference Abstracts AU - Bourdon, Bernard AU - Goldstein, Steve AU - Bourles, Didier AU - Allegre, Claude J AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 802 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - volcanic rocks KW - glasses KW - isotopes KW - igneous rocks KW - mass spectra KW - cosmogenic elements KW - uranium disequilibrium KW - Cenozoic KW - marine sediments KW - radioactive isotopes KW - dates KW - mass balance KW - basalts KW - sediments KW - chemical properties KW - absolute age KW - spectra KW - alkaline earth metals KW - Quaternary KW - Be-10 KW - metals KW - mid-ocean ridge basalts KW - accuracy KW - beryllium KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51918665?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Conference+Abstracts&rft.atitle=Evidence+from+%28super+10%29+Be+and+U-series+disequilibia+on+the+possible+contamination+of+MORB+glasses+by+sedimentary+material&rft.au=Bourdon%2C+Bernard%3BGoldstein%2C+Steve%3BBourles%2C+Didier%3BAllegre%2C+Claude+J%3BAnonymous&rft.aulast=Bourdon&rft.aufirst=Bernard&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=802&rft.isbn=&rft.btitle=&rft.title=Journal+of+Conference+Abstracts&rft.issn=13620886&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - European Union of Geosciences conference; EUG 10 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; alkaline earth metals; basalts; Be-10; beryllium; Cenozoic; chemical properties; cosmogenic elements; dates; glasses; igneous rocks; isotopes; marine sediments; mass balance; mass spectra; metals; mid-ocean ridge basalts; Quaternary; radioactive isotopes; sediments; spectra; uranium disequilibrium; volcanic rocks ER - TY - JOUR T1 - Electrical resistance tomography of unsaturated flow and transport in Yucca Mountain AN - 50882535; 2002-029260 AB - Electrical Resistance Tomography (ERT), a new geophysical imaging technique, was used to study the movement of a tracer through the test block at the Unsaturated Zone Transport Test (UZTT) at Busted Butte, Nevada. Data were collected four times starting in July and ending in early September, 1998. ERT baseline images show a resistivity structure which is consistent with the known lithology in the rear part of the test block. There appears to be a low resistivity region in the front half of the block, particularly near the bottom. Difference images from August 19 and September 9 show clear and consistent resistivity decreases in the region near injection holes 18, 20, and 21 which can be associated with the injection of conductive water. The images show very little effect in the region around the other injection holes, 23, and 24 through 27 where far less water was injected. Difference images from August 19 and September 9 show resistivity decreases which could be interpreted as water moving down into the block. This is the same region which has an anomalously low resistivity in the baseline image. These results should be considered preliminary, and are subject to further interpretation. JF - Proceedings of SAGEEP AU - Buettner, Michael AU - Daily, William AU - Ramirez, Abelardo AU - Bussod, Gilles A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 341 EP - 347 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - United States KW - tomography KW - hydraulics KW - site exploration KW - data acquisition KW - geophysical methods KW - electrical methods KW - data processing KW - unsaturated zone KW - resistivity KW - Nye County Nevada KW - tracers KW - Busted Butte KW - waste disposal KW - Yucca Mountain KW - Nevada KW - image analysis KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50882535?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+SAGEEP&rft.atitle=Electrical+resistance+tomography+of+unsaturated+flow+and+transport+in+Yucca+Mountain&rft.au=Buettner%2C+Michael%3BDaily%2C+William%3BRamirez%2C+Abelardo%3BBussod%2C+Gilles&rft.aulast=Buettner&rft.aufirst=Michael&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+SAGEEP&rft.issn=1554-8015&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Annual meeting of the Environmental and Engineering Geophysical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 2 N1 - PubXState - CO N1 - Document feature - illus. incl. block diag. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Busted Butte; data acquisition; data processing; electrical methods; geophysical methods; hydraulics; image analysis; Nevada; Nye County Nevada; resistivity; site exploration; tomography; tracers; United States; unsaturated zone; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Proterozoic anorthosites, troctolitic magmas and terrane boundaries AN - 50317486; 2001-038758 JF - Journal of Conference Abstracts AU - Scoates, James S AU - Mitchell, Jeremy AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 689 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - United States KW - Labrador KW - upper Precambrian KW - Laramie anorthosite complex KW - igneous rocks KW - Newfoundland and Labrador KW - Newfoundland KW - continental lithosphere KW - plutonic rocks KW - Nain Massif KW - geochemistry KW - Precambrian KW - lithosphere KW - magmatism KW - layered intrusions KW - Proterozoic KW - terranes KW - anorthosite KW - Wyoming KW - intrusions KW - Canada KW - troctolite KW - magmas KW - gabbros KW - Eastern Canada KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50317486?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Conference+Abstracts&rft.atitle=Proterozoic+anorthosites%2C+troctolitic+magmas+and+terrane+boundaries&rft.au=Scoates%2C+James+S%3BMitchell%2C+Jeremy%3BAnonymous&rft.aulast=Scoates&rft.aufirst=James&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=689&rft.isbn=&rft.btitle=&rft.title=Journal+of+Conference+Abstracts&rft.issn=13620886&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - European Union of Geosciences conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 3 N1 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anorthosite; Canada; continental lithosphere; Eastern Canada; gabbros; geochemistry; igneous rocks; intrusions; Labrador; Laramie anorthosite complex; layered intrusions; lithosphere; magmas; magmatism; Nain Massif; Newfoundland; Newfoundland and Labrador; plutonic rocks; Precambrian; Proterozoic; terranes; troctolite; United States; upper Precambrian; Wyoming ER - TY - JOUR T1 - Modeling cities: The Los Alamos Urban Security Initiative AN - 17324471; 4591226 AB - All cities, regardless of size, have a unique set of problems related to security, local economy, energy and water distribution systems, other infrastructure, transportation, and the environment. A comprehensive understanding of how a city works can provide the means to better evaluate vulnerabilities related to natural hazards, such as earthquakes or hurricanes, or to human-caused terrorist attacks. For cities to be safe and sustainable, we must implement long-range urban planning and risk assessment tools and not rely on reactive decision making. The tools must be based on an accurate assessment of the inter-relationships among the many complex processes that occur in an urban environment. Security Project at Los Alamos National Laboratory is building such an approach. JF - Natural Hazards Observer AU - Heiken, G AD - EES-1, MS F665, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, heiken@geology.lanl.gov Y1 - 1999/03// PY - 1999 DA - Mar 1999 SP - 1 EP - 2 VL - 23 IS - 4 SN - 0737-5425, 0737-5425 KW - natural disasters KW - terrorism KW - Risk Abstracts; Health & Safety Science Abstracts KW - Urban planning KW - Emergency preparedness KW - Urban areas KW - H 6000:Natural Disasters/Civil Defense/Emergency Management KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17324471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Natural+Hazards+Observer&rft.atitle=Modeling+cities%3A+The+Los+Alamos+Urban+Security+Initiative&rft.au=Heiken%2C+G&rft.aulast=Heiken&rft.aufirst=G&rft.date=1999-03-01&rft.volume=23&rft.issue=4&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Natural+Hazards+Observer&rft.issn=07375425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Urban areas; Urban planning; Emergency preparedness ER - TY - JOUR T1 - In-Place Filter Testing Geometry Effects on Test Result Uncertainty: Single Stage Systems AN - 17266452; 4576643 AB - In-place filter testing is a widely accepted practice for assuring performance of high-efficiency particulate air (HEPA) filter systems. American Society of Mechanical Engineers (ASME) standards address aspects of uncertainty in in-place filter test results through limits on spatial variation of test aerosol concentration and flow velocity. This article augments the standards by developing an approximate expression for test result uncertainty. The expression uses concentration, flow velocity, and penetration heterogeneities as indices of spatial variation. The uncertainty expression is used to evaluate testing of a hypothetical HEPA filter system meeting requirements of the standards and of an operating field HEPA filter system. At a performance acceptance limit of 5 x 10 super(-4) penetration, uncertainty in tests on the standard system is just over the inferred ASME system acceptance limit of 6.7%. Uncertainty for field system tests is more than twice the limit. The uncertainty expression is used to determine limits on test results that assure compliance with system performance acceptance limits and to evaluate options for modifying the field system. The approach presented here provides a potential mechanism to economically establish a correspondence between tests on qualified nonstandard systems and requirements of the standards. The correspondence assures that tests on the nonstandard systems provide performance assurance equivalent to tests on fully compliant systems. Nonstandard systems that pass these tests can be reasonably expected to meet the same health and environmental protection requirements as fully compliant systems. JF - American Industrial Hygiene Association Journal AU - Scripsick, R C AU - Beckman, R J AU - Mokler, B V AU - Hinds, W C AU - Martinez, V A AD - Los Alamos National Laboratory, Industrial Hygiene and Safety Group, Los Alamos, NM 87545, USA Y1 - 1999/03// PY - 1999 DA - Mar 1999 SP - 300 EP - 309 VL - 60 IS - 3 SN - 0002-8894, 0002-8894 KW - Pollution Abstracts KW - Filters KW - Economics KW - Air sampling KW - Standards KW - Sampling methods KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17266452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Industrial+Hygiene+Association+Journal&rft.atitle=In-Place+Filter+Testing+Geometry+Effects+on+Test+Result+Uncertainty%3A+Single+Stage+Systems&rft.au=Scripsick%2C+R+C%3BBeckman%2C+R+J%3BMokler%2C+B+V%3BHinds%2C+W+C%3BMartinez%2C+V+A&rft.aulast=Scripsick&rft.aufirst=R&rft.date=1999-03-01&rft.volume=60&rft.issue=3&rft.spage=300&rft.isbn=&rft.btitle=&rft.title=American+Industrial+Hygiene+Association+Journal&rft.issn=00028894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Economics; Filters; Standards; Sampling methods; Air sampling ER - TY - JOUR T1 - Conditional stochastic averaging of steady state unsaturated flow by means of Kirchhoff transformation AN - 17260224; 4570217 AB - We consider the effect of measuring randomly varying soil hydraulic properties on one's ability to predict steady state unsaturated flow subject to random sources and/or initial and boundary conditions. Our aim is to allow optimum unbiased prediction of system states (pressure head, water content) and fluxes deterministically, without upscaling and without linearizing the constitutive characteristics of the soil. It has been shown by Neuman et al. [1999] that such prediction is possible by means of first ensemble moments of system states and fluxes, conditioned on measured values of soil properties, when the latter scale in a linearly separable fashion as proposed by Vogel et al. [1991]; the uncertainty associated with such predictions can be quantified by means of the corresponding conditional second moments. The derivation of moment equations for soils whose properties do not scale in the above manner requires linearizing the corresponding constitutive relations, which may lead to major inaccuracies when these relations are highly nonlinear, as is often the case in nature. When the scaling parameter of pressure head is a random variable independent of location, the steady state unsaturated flow equation can be linearized by means of the Kirchhoff transformation for gravity-free flow. Linearization is also possible in the presence of gravity when hydraulic conductivity varies exponentially with pressure head. For the latter case we develop exact conditional first and second-moment equations which are nonlocal and therefore non-Darcian. We solve these equations analytically by perturbation for unconditional vertical infiltration and compare our solution with the results of numerical Monte Carlo simulations. Our analytical solution demonstrates in a rigorous manner that the concept of effective hydraulic conductivity does not apply to ensemble-averaged unsaturated flow except when gravity is the sole driving force. JF - Water Resources Research AU - Tartakovsky, D M AU - Neuman, S P AU - Lu, Zhiming AD - Geoanalysis Group, Earth and Environmental Science Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA Y1 - 1999/03// PY - 1999 DA - Mar 1999 SP - 731 EP - 745 PB - American Geophysical Union VL - 35 IS - 3 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts KW - Permeability coefficient KW - Soil properties KW - Porosity KW - Unsaturated flow KW - Hydraulic properties KW - Gravity flow KW - Monte carlo method KW - Steady flow KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17260224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Conditional+stochastic+averaging+of+steady+state+unsaturated+flow+by+means+of+Kirchhoff+transformation&rft.au=Tartakovsky%2C+D+M%3BNeuman%2C+S+P%3BLu%2C+Zhiming&rft.aulast=Tartakovsky&rft.aufirst=D&rft.date=1999-03-01&rft.volume=35&rft.issue=3&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Permeability coefficient; Hydraulic properties; Unsaturated flow; Porosity; Soil properties; Gravity flow; Monte carlo method; Steady flow ER - TY - JOUR T1 - Trace element partitioning during the initial stages of melting beneath mid-ocean ridges AN - 52503629; 1999-021278 AB - We have measured partition coefficients for U, Th, REE, and high field strength element for orthopyroxene-liquid (3) and garnet-liquid (9) pairs from 2.4 to 2.8 GPa and for clinopyroxene-liquid (6) from 1.2 to 2.8 GPa. These are the first measurements of partition coefficients from experiments that are close to multiple saturation with an anhydrous lherzolite assemblage, similar to what is believed to be the source of primary melts formed beneath mid-ocean ridges. In determining the phase compositions of the anhydrous lherzolite we found that the composition of clinopyroxene on the anhydrous lherzolite solidus changes from high-Ca to low-Ca with increasing pressure. Garnet and clinopyroxene partition coefficients for the elements we studied (U, Th, Nb, Hf, Y, Zr, Ce, Nd, Sm, Er, Yb and Lu) are dependent on pressure, temperature, and composition; although crystal composition appears to be the dominant control on pyroxene coefficients. The garnet partition coefficients most applicable to lherzolite melting are significantly higher than those from previous studies, whereas the clinopyroxene partition coefficients are significantly lower. These new partition coefficients in combination with the new phase equilibria relax the constraints from uranium-thorium disequilibria on mantle porosities in the melting region and reconcile the implications of excess (super 230) Th with melting models based on other geochemical and geophysical parameters [Kelemen et al., A review of melt migration processes in the adiabatically upwelling mantle beneath oceanic spreading ridges, Philos. Trans. R. Soc. London Ser. A 355 (1997) 283-3182; Toomey et al., Tomographic constraints on upper mantle structure beneath the MELT region of the East pacific Rise, Trans. AGU 78 (1997) 705]. With these new partition coefficients significant (super 230) Th excess can be created with residual porosities of up to 1%. Abstract Copyright (1999) Elsevier, B.V. JF - Earth and Planetary Science Letters AU - Salters, Vincent J M AU - Longhi, John Y1 - 1999/02/28/ PY - 1999 DA - 1999 Feb 28 SP - 15 EP - 30 PB - Elsevier, Amsterdam VL - 166 IS - 1-2 SN - 0012-821X, 0012-821X KW - silicates KW - volcanic rocks KW - igneous rocks KW - garnet group KW - partial melting KW - melts KW - uranium disequilibrium KW - partitioning KW - laboratory studies KW - pyroxene group KW - clinopyroxene KW - hafnium KW - phase equilibria KW - basalts KW - orthosilicates KW - rare earths KW - trace elements KW - geochemistry KW - high-field-strength elements KW - chain silicates KW - experimental studies KW - nesosilicates KW - partition coefficients KW - metals KW - mid-ocean ridge basalts KW - thorium KW - uranium KW - orthopyroxene KW - actinides KW - mid-ocean ridges KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52503629?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Trace+element+partitioning+during+the+initial+stages+of+melting+beneath+mid-ocean+ridges&rft.au=Salters%2C+Vincent+J+M%3BLonghi%2C+John&rft.aulast=Salters&rft.aufirst=Vincent+J&rft.date=1999-02-28&rft.volume=166&rft.issue=1-2&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2FS0012-821X%2898%2900271-4 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1999-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2017-01-19 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - actinides; basalts; chain silicates; clinopyroxene; experimental studies; garnet group; geochemistry; hafnium; high-field-strength elements; igneous rocks; laboratory studies; melts; metals; mid-ocean ridge basalts; mid-ocean ridges; nesosilicates; orthopyroxene; orthosilicates; partial melting; partition coefficients; partitioning; phase equilibria; pyroxene group; rare earths; silicates; thorium; trace elements; uranium; uranium disequilibrium; volcanic rocks DO - http://dx.doi.org/10.1016/S0012-821X(98)00271-4 ER - TY - JOUR T1 - Hypothesized changes in dust sources from Sr isotope composition of CaCO (sub 3) in volcanic and alluvial Desert soils AN - 52438243; 1999-062643 JF - Abstracts with Programs - Geological Society of America AU - McLain, A AU - McFadden, Leslie D AU - Asmerom, Yemane AU - McDonald, E AU - Poths, J AU - Anonymous Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 29 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 1 SN - 0016-7592, 0016-7592 KW - United States KW - terrestrial environment KW - volcanic rocks KW - isotopes KW - igneous rocks KW - New Mexico KW - Holocene KW - stable isotopes KW - climate change KW - variations KW - Cenozoic KW - California KW - Mojave Desert KW - basalts KW - sediments KW - calcium carbonate KW - horizons KW - Cima volcanic field KW - San Bernardino County California KW - soils KW - processes KW - alkaline earth metals KW - southern New Mexico KW - Quaternary KW - clastic sediments KW - isotope ratios KW - arid environment KW - Desert soils KW - Sr-87/Sr-86 KW - provenance KW - Southern California KW - metals KW - dust KW - parent materials KW - Pleistocene KW - alluvium KW - strontium KW - Potrillo volcanic field KW - 02D:Isotope geochemistry KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52438243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Hypothesized+changes+in+dust+sources+from+Sr+isotope+composition+of+CaCO+%28sub+3%29+in+volcanic+and+alluvial+Desert+soils&rft.au=McLain%2C+A%3BMcFadden%2C+Leslie+D%3BAsmerom%2C+Yemane%3BMcDonald%2C+E%3BPoths%2C+J%3BAnonymous&rft.aulast=McLain&rft.aufirst=A&rft.date=1999-02-01&rft.volume=31&rft.issue=1&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, South-Central Section, 33rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; alluvium; arid environment; basalts; calcium carbonate; California; Cenozoic; Cima volcanic field; clastic sediments; climate change; Desert soils; dust; Holocene; horizons; igneous rocks; isotope ratios; isotopes; metals; Mojave Desert; New Mexico; parent materials; Pleistocene; Potrillo volcanic field; processes; provenance; Quaternary; San Bernardino County California; sediments; soils; Southern California; southern New Mexico; Sr-87/Sr-86; stable isotopes; strontium; terrestrial environment; United States; variations; volcanic rocks ER - TY - JOUR T1 - Paleo-spring deposits as a record of climate change in an arid environment; an example from the Tecopa area, California AN - 52438120; 1999-062657 JF - Abstracts with Programs - Geological Society of America AU - Nelson, Stephen T AU - Karlsson, Haraldur R AU - Paces, James B AU - Peters, Mark T AU - Anonymous Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 31 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 1 SN - 0016-7592, 0016-7592 KW - United States KW - terrestrial environment KW - oxygen KW - isotopes KW - stable isotopes KW - climate change KW - ground water KW - carbon dioxide KW - Tecopa Basin KW - Cenozoic KW - California KW - sedimentary rocks KW - carbon KW - glacial environment KW - kinetics KW - geochemistry KW - pH KW - chemically precipitated rocks KW - Quaternary KW - paleohydrology KW - isotope ratios KW - arid environment KW - C-13/C-12 KW - surface water KW - drainage patterns KW - solutes KW - O-18/O-16 KW - hydrochemistry KW - precipitation KW - Lake Tecopa KW - tufa KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52438120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Paleo-spring+deposits+as+a+record+of+climate+change+in+an+arid+environment%3B+an+example+from+the+Tecopa+area%2C+California&rft.au=Nelson%2C+Stephen+T%3BKarlsson%2C+Haraldur+R%3BPaces%2C+James+B%3BPeters%2C+Mark+T%3BAnonymous&rft.aulast=Nelson&rft.aufirst=Stephen&rft.date=1999-02-01&rft.volume=31&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, South-Central Section, 33rd annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2014-03-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - arid environment; C-13/C-12; California; carbon; carbon dioxide; Cenozoic; chemically precipitated rocks; climate change; drainage patterns; geochemistry; glacial environment; ground water; hydrochemistry; isotope ratios; isotopes; kinetics; Lake Tecopa; O-18/O-16; oxygen; paleohydrology; pH; precipitation; Quaternary; sedimentary rocks; solutes; stable isotopes; surface water; Tecopa Basin; terrestrial environment; tufa; United States ER - TY - JOUR T1 - Determining soil contamination profiles from intensities of capture-gamma rays using above-surface neutron sources AN - 52339717; 2000-049567 JF - Applied Radiation and Isotopes AU - Shultis, J Kenneth AU - Khan, F AU - Letellier, B AU - Faw, Richard E Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 415 EP - 433 PB - Pergamon, Oxford VL - 50 IS - 2 SN - 0969-8043, 0969-8043 KW - soils KW - irradiation KW - neutrons KW - gamma rays KW - electromagnetic radiation KW - pollution KW - Backus-Gilbert analysis KW - neutron activation analysis KW - mathematical models KW - photons KW - environmental analysis KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52339717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Radiation+and+Isotopes&rft.atitle=Determining+soil+contamination+profiles+from+intensities+of+capture-gamma+rays+using+above-surface+neutron+sources&rft.au=Shultis%2C+J+Kenneth%3BKhan%2C+F%3BLetellier%2C+B%3BFaw%2C+Richard+E&rft.aulast=Shultis&rft.aufirst=J&rft.date=1999-02-01&rft.volume=50&rft.issue=2&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Applied+Radiation+and+Isotopes&rft.issn=09698043&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/09698043 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 23 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Backus-Gilbert analysis; electromagnetic radiation; environmental analysis; gamma rays; irradiation; mathematical models; neutron activation analysis; neutrons; photons; pollution; soils ER - TY - RPRT T1 - Spectrophotometric investigation of U(vi) chloride complexation in the NaCl/NaClO (sub 4) system AN - 51910467; 2004-001668 AB - The option of a nuclear waste disposal in deep salt formations such as Gorleben in Germany, and the WIPP (Waste Isolation Pilot Plant) in southeastern New Mexico, US has generated, over the last ten years, interests in thermodynamic data of radioactive trace elements in concentrated electrolyte solutions. Furthermore, post closure radioactive release scenarios from geologic salt formation, such as the WIPP include hydrologic transport of radionuclides through a chloride saturated aquifer. Consequently, the understanding of actinide solution chemistry in brines is essential for modeling requiring accurate knowledge of the interaction between AnO (sub 2) (super 2+) and chloride ions. The goal is to develop models capable of predicting their behavior in natural multicomponent brines of high concentration. Complexation constants of two U(VI) chloride species, UO (sub 2) Cl (super +) and UO (sub 2) Cl (sub 2) (super 0) , have been intensively studied for about 40 years using different methods. However, large uncertainties reflect the general difficulty in determining accurate stability constants of weak complexes. In order to model the behavior of U(VI) in brines, the authors studied the formation of its chloride complexes by UV-Vis spectroscopy as a function of the NaCl concentration at 25 C. JF - Spectrophotometric investigation of U(vi) chloride complexation in the NaCl/NaClO (sub 4) system AU - Paviet-Hartmann, P AU - Lin, M R AU - Runde, W H Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 38 VL - LA-UR-99-708 KW - United States KW - aquifer vulnerability KW - isotopes KW - Eddy County New Mexico KW - complexing KW - halogens KW - New Mexico KW - radioactive waste KW - ground water KW - waste management KW - radioactive isotopes KW - chloride ion KW - Waste Isolation Pilot Plant KW - trace elements KW - thermodynamic properties KW - chlorine KW - concentration KW - sodium chloride KW - pollution KW - electrolytes KW - migration of elements KW - aquifers KW - saturation KW - waste disposal KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51910467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Paviet-Hartmann%2C+P%3BLin%2C+M+R%3BRunde%2C+W+H&rft.aulast=Paviet-Hartmann&rft.aufirst=P&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Spectrophotometric+investigation+of+U%28vi%29+chloride+complexation+in+the+NaCl%2FNaClO+%28sub+4%29+system&rft.title=Spectrophotometric+investigation+of+U%28vi%29+chloride+complexation+in+the+NaCl%2FNaClO+%28sub+4%29+system&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2004-01-01 N1 - Availability - National Technical Information Service, (703)487-4650, order number DE99002201NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the Fall meeting of the Materials Research Society; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Unified Mo:mb(Lg) scaling relationships AN - 51020659; 1999-065390 JF - Seismological Research Letters AU - Patton, Howard J AU - Scharnberger, Charles K AU - Meltzer, Anne S Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 120 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 1 SN - 0895-0695, 0895-0695 KW - guided waves KW - seismic moment KW - magnitude KW - Lg-waves KW - data processing KW - elastic waves KW - surface waves KW - ground motion KW - data bases KW - applications KW - seismic waves KW - earthquakes KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51020659?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Unified+Mo%3Amb%28Lg%29+scaling+relationships&rft.au=Patton%2C+Howard+J%3BScharnberger%2C+Charles+K%3BMeltzer%2C+Anne+S&rft.aulast=Patton&rft.aufirst=Howard&rft.date=1999-02-01&rft.volume=70&rft.issue=1&rft.spage=120&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America, Eastern Section, 70th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - amplitude; applications; data bases; data processing; earthquakes; elastic waves; ground motion; guided waves; Lg-waves; magnitude; seismic moment; seismic waves; surface waves ER - TY - JOUR T1 - A radionuclide transport model for the unsaturated zone at Yucca Mountain AN - 50414878; 2009-058186 JF - LBNL - Lawrence Berkeley National Laboratory AU - Robinson, B A AU - Viswanathan, H S AU - Wolfsberg, A V AU - Gable, C W A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 114 EP - 116 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - United States KW - silicates KW - calcium KW - neptunium KW - isotopes KW - unsaturated zone KW - elastic waves KW - preferential flow KW - simulation KW - climate change KW - radioactive waste KW - ground water KW - fractures KW - radioactive isotopes KW - transport KW - zeolite group KW - hydrodynamics KW - framework silicates KW - Yucca Mountain KW - pH KW - Nevada KW - hydrology KW - concentration KW - alkaline earth metals KW - alkali metals KW - prediction KW - migration of elements KW - sodium KW - Nye County Nevada KW - models KW - water table KW - heterogeneous materials KW - metals KW - traveltime KW - waste disposal KW - actinides KW - underground disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50414878?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.atitle=A+radionuclide+transport+model+for+the+unsaturated+zone+at+Yucca+Mountain&rft.au=Robinson%2C+B+A%3BViswanathan%2C+H+S%3BWolfsberg%2C+A+V%3BGable%2C+C+W&rft.aulast=Robinson&rft.aufirst=B&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Dynamics of fluids in fractured rocks; concepts and recent advances N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; alkaline earth metals; calcium; climate change; concentration; elastic waves; fractures; framework silicates; ground water; heterogeneous materials; hydrodynamics; hydrology; isotopes; metals; migration of elements; models; neptunium; Nevada; Nye County Nevada; pH; prediction; preferential flow; radioactive isotopes; radioactive waste; silicates; simulation; sodium; transport; traveltime; underground disposal; United States; unsaturated zone; waste disposal; water table; Yucca Mountain; zeolite group ER - TY - JOUR T1 - Multicomponent reactive transport in fractured porous media; methods and applications AN - 50414869; 2009-058168 JF - LBNL - Lawrence Berkeley National Laboratory AU - Lichtner, Peter C A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 36 EP - 39 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - fractured materials KW - numerical models KW - contaminant plumes KW - oxidation KW - matrix KW - pollution KW - porous materials KW - migration of elements KW - ground water KW - aquifers KW - models KW - fractures KW - heterogeneous materials KW - chemical reactions KW - weathered materials KW - reduction KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50414869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.atitle=Multicomponent+reactive+transport+in+fractured+porous+media%3B+methods+and+applications&rft.au=Lichtner%2C+Peter+C&rft.aulast=Lichtner&rft.aufirst=Peter&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Dynamics of fluids in fractured rocks; concepts and recent advances N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 10 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - aquifers; chemical reactions; contaminant plumes; fractured materials; fractures; ground water; heterogeneous materials; matrix; migration of elements; models; numerical models; oxidation; permeability; pollution; porous materials; reduction; weathered materials ER - TY - JOUR T1 - A model of microbial growth in a flowing fracture AN - 50414859; 2009-058248 JF - LBNL - Lawrence Berkeley National Laboratory AU - Travis, Bryan A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 369 EP - 370 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - soils KW - dispersivity KW - colloidal materials KW - solutes KW - pollution KW - porous materials KW - preferential flow KW - advection KW - porosity KW - nutrients KW - models KW - substrates KW - fractures KW - transport KW - biofilms KW - kinetics KW - microorganisms KW - diffusivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50414859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.atitle=A+model+of+microbial+growth+in+a+flowing+fracture&rft.au=Travis%2C+Bryan&rft.aulast=Travis&rft.aufirst=Bryan&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Dynamics of fluids in fractured rocks; concepts and recent advances N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - advection; biofilms; colloidal materials; diffusivity; dispersivity; fractures; kinetics; microorganisms; models; nutrients; pollution; porosity; porous materials; preferential flow; soils; solutes; substrates; transport ER - TY - JOUR T1 - An unsaturated zone transport field test in fractured tuff AN - 50414690; 2009-058221 JF - LBNL - Lawrence Berkeley National Laboratory AU - Bussod, G Y AU - Turin, H Jake A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 269 EP - 271 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - United States KW - volcanic rocks KW - igneous rocks KW - ground-penetrating radar KW - unsaturated zone KW - reinforced materials KW - reservoir rocks KW - ground water KW - Cenozoic KW - Nevada Test Site KW - controls KW - transport KW - tuff KW - Calico Hills Formation KW - Yucca Mountain KW - Nevada KW - faults KW - disposal barriers KW - three-dimensional models KW - radar methods KW - pollution KW - migration of elements KW - Nye County Nevada KW - Miocene KW - aquifers KW - models KW - Topopah Spring Member KW - pyroclastics KW - Tertiary KW - physical properties KW - Neogene KW - waste disposal KW - underground disposal KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50414690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.atitle=An+unsaturated+zone+transport+field+test+in+fractured+tuff&rft.au=Bussod%2C+G+Y%3BTurin%2C+H+Jake&rft.aulast=Bussod&rft.aufirst=G&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=269&rft.isbn=&rft.btitle=&rft.title=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Dynamics of fluids in fractured rocks; concepts and recent advances N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - aquifers; Calico Hills Formation; Cenozoic; controls; disposal barriers; faults; ground water; ground-penetrating radar; igneous rocks; migration of elements; Miocene; models; Neogene; Nevada; Nevada Test Site; Nye County Nevada; permeability; physical properties; pollution; pyroclastics; radar methods; reinforced materials; reservoir rocks; Tertiary; three-dimensional models; Topopah Spring Member; transport; tuff; underground disposal; United States; unsaturated zone; volcanic rocks; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Infiltration of hyperalkaline groundwater along discrete fractures at Maqarin, Jordan AN - 50414605; 2009-058218 JF - LBNL - Lawrence Berkeley National Laboratory AU - Steefel, Carl I AU - Lichtner, Peter C A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 255 EP - 258 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - water quality KW - alteration KW - preferential flow KW - fluid dynamics KW - reservoir rocks KW - radioactive waste KW - ground water KW - fractures KW - mineral composition KW - chemical reactions KW - transport KW - Jordan KW - springs KW - alkalinity KW - Asia KW - pH KW - Middle East KW - Maqarin Jordan KW - matrix KW - pollution KW - porous materials KW - calcite KW - aquifers KW - models KW - recharge KW - hydraulic conductivity KW - waste disposal KW - leaching KW - carbonates KW - underground disposal KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50414605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.atitle=Infiltration+of+hyperalkaline+groundwater+along+discrete+fractures+at+Maqarin%2C+Jordan&rft.au=Steefel%2C+Carl+I%3BLichtner%2C+Peter+C&rft.aulast=Steefel&rft.aufirst=Carl&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Dynamics of fluids in fractured rocks; concepts and recent advances N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 7 N1 - PubXState - CA N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - alkalinity; alteration; aquifers; Asia; calcite; carbonates; chemical reactions; fluid dynamics; fractures; ground water; hydraulic conductivity; Jordan; leaching; Maqarin Jordan; matrix; Middle East; mineral composition; models; pH; pollution; porous materials; preferential flow; radioactive waste; recharge; reservoir rocks; springs; transport; underground disposal; waste disposal; water quality ER - TY - JOUR T1 - Scale-dependent Darcy flows in fractured media AN - 50414315; 2009-058209 JF - LBNL - Lawrence Berkeley National Laboratory AU - Tartakovsky, Daniel M AU - Winter, Larry A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 224 EP - 225 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - Bayesian analysis KW - Darcy's law KW - statistical analysis KW - prediction KW - porous materials KW - preferential flow KW - ground water KW - aquifers KW - spatial distribution KW - physical properties KW - heterogeneous materials KW - stochastic processes KW - hydrodynamics KW - probability KW - hydraulic conductivity KW - uncertainty KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50414315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.atitle=Scale-dependent+Darcy+flows+in+fractured+media&rft.au=Tartakovsky%2C+Daniel+M%3BWinter%2C+Larry&rft.aulast=Tartakovsky&rft.aufirst=Daniel&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=224&rft.isbn=&rft.btitle=&rft.title=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Dynamics of fluids in fractured rocks; concepts and recent advances N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 1 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - aquifers; Bayesian analysis; Darcy's law; ground water; heterogeneous materials; hydraulic conductivity; hydrodynamics; physical properties; porous materials; prediction; preferential flow; probability; spatial distribution; statistical analysis; stochastic processes; uncertainty ER - TY - JOUR T1 - Stochastic analysis of groundwater flow in fractured porous media; a double-permeability approach AN - 50409639; 2009-058253 JF - LBNL - Lawrence Berkeley National Laboratory AU - Zhang, Dongxiao AU - Sun, Alexander Y A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 390 EP - 391 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - solute transport KW - fractured materials KW - finite difference analysis KW - porous materials KW - mathematical models KW - preferential flow KW - porosity KW - ground water KW - aquifers KW - models KW - stochastic processes KW - saturation KW - pore pressure KW - hydraulic conductivity KW - mass transfer KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50409639?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.atitle=Stochastic+analysis+of+groundwater+flow+in+fractured+porous+media%3B+a+double-permeability+approach&rft.au=Zhang%2C+Dongxiao%3BSun%2C+Alexander+Y&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=390&rft.isbn=&rft.btitle=&rft.title=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Dynamics of fluids in fractured rocks; concepts and recent advances N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 9 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - aquifers; finite difference analysis; fractured materials; ground water; hydraulic conductivity; mass transfer; mathematical models; models; permeability; pore pressure; porosity; porous materials; preferential flow; saturation; solute transport; stochastic processes ER - TY - JOUR T1 - The reduced degree of freedom procedures for solving coupled-field problems AN - 50409555; 2009-058255 JF - LBNL - Lawrence Berkeley National Laboratory AU - Zyvoloski, George A AU - Tseng, Peng-Hsiang A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 396 EP - 398 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - spatial data KW - coupling KW - preferential flow KW - simulation KW - energy balance KW - temperature KW - water-rock interaction KW - energy sources KW - heat flow KW - hydrology KW - air-water interface KW - numerical models KW - gaseous phase KW - matrix KW - porous materials KW - mathematical models KW - equations KW - models KW - geothermal energy KW - geothermal reservoirs KW - saturation KW - pore water KW - permeability KW - high temperature KW - 29A:Economic geology, geology of energy sources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50409555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.atitle=The+reduced+degree+of+freedom+procedures+for+solving+coupled-field+problems&rft.au=Zyvoloski%2C+George+A%3BTseng%2C+Peng-Hsiang&rft.aulast=Zyvoloski&rft.aufirst=George&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=396&rft.isbn=&rft.btitle=&rft.title=LBNL+-+Lawrence+Berkeley+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Dynamics of fluids in fractured rocks; concepts and recent advances N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 7 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - air-water interface; coupling; energy balance; energy sources; equations; gaseous phase; geothermal energy; geothermal reservoirs; heat flow; high temperature; hydrology; mathematical models; matrix; models; numerical models; permeability; pore water; porous materials; preferential flow; saturation; simulation; spatial data; temperature; water-rock interaction ER - TY - JOUR T1 - Water flow and solute spreading in heterogeneous soils with spatially variable water content AN - 50165550; 1999-033736 AB - Although the spatial variability of water content is expected to be significant in heterogeneous, unsaturated media, its effect on solute transport has been neglected in most stochastic analyses. In this work we develop, evaluate, and numerically verify an analytical model describing the statistical moments of water content, soil water flux, soil water velocity, and solute spreading in the unsaturated zone under conditions of variable soil water content. Results are presented for a wide range of soil conditions. It is shown that soil water content variability increases with soil water tension and decreases with soil textural tortuosity parameter m. As expected, the water content variability also increases with those of soil texture and saturated hydraulic conductivity. However, at or above field capacity (near saturation) the water content variability is generally negligible. The water content variability is very large under dry conditions, even if the soil is relatively homogeneous. In the same soil, longitudinal macrodispersivity is generally smaller when including than when neglecting the variability in water content. Variable water content enhances longitudinal macrodispersivity only in soils with large horizontal anisotropy or soils with m < 2. In this case the enhancement is more significant in drier soils and at the early stages of plume displacement (less than 10 lambda (sub f) ). With travel distance the longitudinal macrodispersivity in the presence of variable water content converges to that in the absence of it. Copyright 1999 by the American Geophysical Union. JF - Water Resources Research AU - Harter, Thomas AU - Zhang, Dongxiao Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 415 EP - 426 PB - American Geophysical Union, Washington, DC VL - 35 IS - 2 SN - 0043-1397, 0043-1397 KW - solute transport KW - soils KW - textures KW - Darcy's law KW - unsaturated zone KW - equations KW - fluid dynamics KW - ground water KW - models KW - spatial variations KW - hydraulic head KW - heterogeneous materials KW - saturation KW - wettability KW - water content KW - soil-water balance KW - hydraulic conductivity KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50165550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Water+flow+and+solute+spreading+in+heterogeneous+soils+with+spatially+variable+water+content&rft.au=Harter%2C+Thomas%3BZhang%2C+Dongxiao&rft.aulast=Harter&rft.aufirst=Thomas&rft.date=1999-02-01&rft.volume=35&rft.issue=2&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F1998WR900027 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 28 N1 - PubXState - DC N1 - Document feature - illus. incl. table N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Darcy's law; equations; fluid dynamics; ground water; heterogeneous materials; hydraulic conductivity; hydraulic head; models; permeability; saturation; soil-water balance; soils; solute transport; spatial variations; textures; unsaturated zone; water content; wettability DO - http://dx.doi.org/10.1029/1998WR900027 ER - TY - JOUR T1 - An inversion for the permeability tensor by using seismic emission AN - 913704009; 2012-008035 AB - We propose an approach for in situ estimating of the large-scale permeability tensor of reservoirs. For this we use the seismic emission (microseismicity) induced by borehole hydraulic tests. The approach is based on the hypothesis that the triggering front of the hydraulic-induced microseismicity propagates like the low-frequency second-type compressional Biot wave (corresponding to the process of the pore pressure relaxation) in an effective homogeneous anisotropic poroelastic fluid-saturated medium. The permeability tensor of this effective medium is the permeability tensor of the heterogeneous rock volume upscaled to the characteristic size of the seismically-active region. We show that the surface of the seismicity triggering front has the same form as the group-velocity surface of the anisotropic second type Biot wave. This suggests a high-precision procedure for estimating the permeability tensor by using a few seismic events. We demonstrate the method on several practical examples. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Shapiro, Serge A AU - Audigane, Pascal AU - Royer, J J AU - Fehler, M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 1783 EP - 1786 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - petroleum exploration KW - anisotropic materials KW - data acquisition KW - data processing KW - characterization KW - petroleum KW - elastic waves KW - reservoir rocks KW - emission spectra KW - seismicity KW - pore pressure KW - microseisms KW - propagation KW - spectra KW - acoustical emissions KW - diffusivity KW - experimental studies KW - elasticity KW - microseismic methods KW - poroelasticity KW - statistical analysis KW - geophysical methods KW - inverse problem KW - group velocity KW - seismic methods KW - least-squares analysis KW - moment tensors KW - heterogeneous materials KW - saturation KW - mathematical methods KW - volume KW - reservoir properties KW - reconstruction KW - permeability KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/913704009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=An+inversion+for+the+permeability+tensor+by+using+seismic+emission&rft.au=Shapiro%2C+Serge+A%3BAudigane%2C+Pascal%3BRoyer%2C+J+J%3BFehler%2C+M%3BAnonymous&rft.aulast=Shapiro&rft.aufirst=Serge&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=1783&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1820884 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 69th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acoustical emissions; anisotropic materials; characterization; data acquisition; data processing; diffusivity; elastic waves; elasticity; emission spectra; experimental studies; geophysical methods; group velocity; heterogeneous materials; inverse problem; least-squares analysis; mathematical methods; microseismic methods; microseisms; moment tensors; permeability; petroleum; petroleum exploration; pore pressure; poroelasticity; propagation; reconstruction; reservoir properties; reservoir rocks; saturation; seismic methods; seismicity; spectra; statistical analysis; volume DO - http://dx.doi.org/10.1190/1.1820884 ER - TY - JOUR T1 - Wavefront construction; a differential geometry approach AN - 913703993; 2012-008025 AB - A ray travel time wavefront represents a mathematical object called a manifold. In particular, paraxial ray theory contains elements that predict the Gaussian curvature of the wavefront surface. There are locations on this wavefront where the curvature is singular; in geometric optics terms, these are the ray caustic regions. These singular points or lines represent virtual sources. As such, the ray density in the neighborhood of these wavefront surface singularities must be large to model such sources. Conversely in regions of small curvature, the ray density can be low and still adequately represent the wavefront shape. These observations lead us to suggest new ray addition criteria for the wavefront construction algorithm: the distance between two neighboring rays must be less than the radius of wavefront curvature between these rays. This paraxial ray approximation insures that the angle between the neighboring ray slowness vectors is bounded and that the paraxial ray travel time estimate is valid for this interval. For velocity models where the projection of the wavefront upon the receiver plane is multi-valued, the paraxial ray method yields an elegant procedure to interpolate the resulting travel time and complex amplitude fields. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Hildebrand, S AU - Aprea, C AU - Fehler, M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 1743 EP - 1746 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - graphic display KW - geophysical methods KW - data processing KW - elastic waves KW - wave fields KW - seismic methods KW - geometry KW - models KW - paraxial ray method KW - mathematical methods KW - traveltime KW - velocity KW - seismic waves KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/913703993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Wavefront+construction%3B+a+differential+geometry+approach&rft.au=Hildebrand%2C+S%3BAprea%2C+C%3BFehler%2C+M%3BAnonymous&rft.aulast=Hildebrand&rft.aufirst=S&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=1743&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1820873 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 69th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - data processing; elastic waves; geometry; geophysical methods; graphic display; mathematical methods; models; paraxial ray method; seismic methods; seismic waves; traveltime; velocity; wave fields DO - http://dx.doi.org/10.1190/1.1820873 ER - TY - JOUR T1 - Imaging and modeling seismic data from a physical model of the SEG/EAGE salt structure AN - 913703665; 2012-007841 AB - Seismic data collected from a physical model of the SEG/EAGE salt structure provides a test of imaging in a complex and highly variable velocity structure. The physical model was constructed to simulate most of the features of the numerical model used to calculate the large SEG/EAGE synthetic seismic data set. The physical model is slightly simplified, since it could not be constructed with the velocity gradients used in the numerical model. Two data sets were collected from the model, one a simulation of a traditional marine survey, the other a simulation of a survey with vertical arrays of receivers. The main reason for collecting the two data sets was to compare images obtained from the marine survey with those obtained from the vertical receiver arrays. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - House, Leigh AU - Roberts, P AU - Yang, X AU - Huang, Lian-Jie AU - Wiley, Robert AU - Larsen, S AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 1017 EP - 1020 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - imagery KW - geophysical surveys KW - data acquisition KW - data processing KW - SEG/AEGE model KW - elastic waves KW - seismic migration KW - sedimentary rocks KW - velocity KW - tectonics KW - salt tectonics KW - chemically precipitated rocks KW - numerical models KW - three-dimensional models KW - graphic display KW - geophysical methods KW - evaporites KW - seismic methods KW - geometry KW - models KW - mathematical methods KW - surveys KW - seismic waves KW - salt KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/913703665?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Imaging+and+modeling+seismic+data+from+a+physical+model+of+the+SEG%2FEAGE+salt+structure&rft.au=House%2C+Leigh%3BRoberts%2C+P%3BYang%2C+X%3BHuang%2C+Lian-Jie%3BWiley%2C+Robert%3BLarsen%2C+S%3BAnonymous&rft.aulast=House&rft.aufirst=Leigh&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=1017&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1820669 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 69th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - OK N1 - Document feature - illus. incl. sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemically precipitated rocks; data acquisition; data processing; elastic waves; evaporites; geometry; geophysical methods; geophysical surveys; graphic display; imagery; mathematical methods; models; numerical models; salt; salt tectonics; sedimentary rocks; SEG/AEGE model; seismic methods; seismic migration; seismic waves; surveys; tectonics; three-dimensional models; velocity DO - http://dx.doi.org/10.1190/1.1820669 ER - TY - JOUR T1 - Quasi-linear extended local Born-Fourier migration method AN - 913700378; 2012-007933 AB - We locally apply the quasi-linear Born approximation within each extrapolation interval during wave field extrapolation and develop a depth migration method termed the quasi-linear extended local Born Fourier (QELBF) migration method. Our numerical experiments show that the QELBF method is stable for any large lateral slowness variation and frequency and can handle wide angles and scattering of heterogeneities more accurately than the split-step Fourier method. When the scattered wave field is much weaker than the incident wave field, the QELBF method leads to the extended local Born Fourier migration (ELBF) method that is based on a local application of the linear Born approximation. We propose a hybrid linear/quasi-linear local Born Fourier migration method in which the ELBF method is used when the lateral slowness variations are small and/or the frequency is low, and the QELBF method is used for other cases. This hybrid method is more efficient than the QELBF method for models with mostly small lateral slowness variations. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Huang, Lian-Jie AU - Fehler, M C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 1378 EP - 1381 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - seismograms KW - quasi-linear extended local Born Fourier KW - petroleum exploration KW - salt domes KW - data acquisition KW - geophysical methods KW - data processing KW - SEG/AEGE model KW - petroleum KW - equations KW - wave fields KW - seismic migration KW - depth KW - seismic methods KW - models KW - Born-Fourier migration KW - Fourier analysis KW - mathematical methods KW - traps KW - synthetic seismograms KW - Born approximation KW - Marmousi model KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/913700378?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Quasi-linear+extended+local+Born-Fourier+migration+method&rft.au=Huang%2C+Lian-Jie%3BFehler%2C+M+C%3BAnonymous&rft.aulast=Huang&rft.aufirst=Lian-Jie&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=1378&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1820770 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 69th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - OK N1 - Document feature - sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Born approximation; Born-Fourier migration; data acquisition; data processing; depth; equations; Fourier analysis; geophysical methods; Marmousi model; mathematical methods; models; petroleum; petroleum exploration; quasi-linear extended local Born Fourier; salt domes; SEG/AEGE model; seismic methods; seismic migration; seismograms; synthetic seismograms; traps; wave fields DO - http://dx.doi.org/10.1190/1.1820770 ER - TY - JOUR T1 - Borehole testing of a micromachined silicon accelerometer AN - 911675651; 2012-005772 AB - Side-by-side field tests of borehole seismic packages containing either micromachined analog servo accelerometers or conventional piezoelectric accelerometers currently used in borehole seismic applications, show important differences in their relative performance. Laboratory testing of the micromachine shows dramatically improved distortion and low frequency response compared to conventional geophones (Gannon et al., this volume). JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Albright, J N AU - Gannon, Jeffery C AU - Fairbanks, Thomas D AU - Rutledge, J T AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 232 EP - 234 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - United States KW - North Slope KW - offshore KW - well-logging KW - geophysical methods KW - accelerometers KW - piezoelectric properties KW - silicon KW - seismic methods KW - testing KW - Alaska KW - instruments KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Borehole+testing+of+a+micromachined+silicon+accelerometer&rft.au=Albright%2C+J+N%3BGannon%2C+Jeffery+C%3BFairbanks%2C+Thomas+D%3BRutledge%2C+J+T%3BAnonymous&rft.aulast=Albright&rft.aufirst=J&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=232&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1820987 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 69th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accelerometers; Alaska; geophysical methods; instruments; North Slope; offshore; piezoelectric properties; seismic methods; silicon; testing; United States; well-logging DO - http://dx.doi.org/10.1190/1.1820987 ER - TY - JOUR T1 - Pathways for the oxidation of sarin in urban atmospheres. AN - 733541409; 19009414 AB - The nerve agent sarin has recently been deployed by terrorists in a major city. The molecule is volatile and made its way to many victims by passing as vapor through a highly reactive medium. Here we estimate rates and pathways for the removal of gas phase sarin from a generalized urban atmosphere. Only information from the open scientific literature is used. By structure reactivity comparisons with the organophosphorus pesticides, hydroxyl radical hydrogen abstraction may occur in as little as one hour. Decomposition of side chains after hydroxyl attack leads to organic oxygenates which preserve the phosphonofluoridate and so toxicity. The aqueous aerosol surface is contacted in minutes and offers access to a range of dissolved nucleophiles. Substitution displaces the fluoride leaving group, giving safe phosphoric acid analogs. Because of uncertainties in the electron distribution and in aqueous decay mechanisms, the time constants must be viewed as lower limits. JF - Environmental science and pollution research international AU - Elliott, S AU - Streit, G E AU - Gaffney, J S AU - Bossert, J E AU - Brown, M AU - Reisner, J AU - McNair, L A AD - Atmospheric Sciences Group, Los Alamos National Laboratory, Los Alamos, New Mexico, USA. selliott@kokopelli.lanl.gov Y1 - 1999 PY - 1999 DA - 1999 SP - 103 EP - 105 VL - 6 IS - 2 SN - 0944-1344, 0944-1344 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733541409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+and+pollution+research+international&rft.atitle=Pathways+for+the+oxidation+of+sarin+in+urban+atmospheres.&rft.au=Elliott%2C+S%3BStreit%2C+G+E%3BGaffney%2C+J+S%3BBossert%2C+J+E%3BBrown%2C+M%3BReisner%2C+J%3BMcNair%2C+L+A&rft.aulast=Elliott&rft.aufirst=S&rft.date=1999-01-01&rft.volume=6&rft.issue=2&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Environmental+science+and+pollution+research+international&rft.issn=09441344&rft_id=info:doi/10.1007%2FBF02987561 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-05-20 N1 - Date created - 2008-11-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1007/BF02987561 ER - TY - BOOK T1 - Hydrogeology in practice; a guide to characterizing ground-water systems AN - 52517579; 1999-012258 JF - Hydrogeology in practice; a guide to characterizing ground-water systems AU - Stone, William J Y1 - 1999 PY - 1999 DA - 1999 SP - 248 PB - Prentice Hall, Upper Saddle River, NJ SN - 0138991545 KW - soils KW - water quality KW - water supply KW - textbooks KW - monitoring KW - pollution KW - hydrogeology KW - water balance KW - education KW - concepts KW - ground water KW - aquifers KW - models KW - case studies KW - practice KW - hydrodynamics KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52517579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Stone%2C+William+J&rft.aulast=Stone&rft.aufirst=William&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0138991545&rft.btitle=Hydrogeology+in+practice%3B+a+guide+to+characterizing+ground-water+systems&rft.title=Hydrogeology+in+practice%3B+a+guide+to+characterizing+ground-water+systems&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - NJ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The solar oxygen-isotopic composition; predictions and implications for solar nebula processes AN - 52490424; 1999-029488 JF - Meteoritics & Planetary Science AU - Wiens, R C AU - Huss, G R AU - Burnett, D S Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 99 EP - 107 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 1 SN - 1086-9379, 1086-9379 KW - water KW - solar system KW - oxygen KW - isotopes KW - isotope ratios KW - prediction KW - O-18/O-16 KW - stable isotopes KW - solar nebula KW - models KW - carbon monoxide KW - mixing KW - chemical composition KW - O-17/O-16 KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52490424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+solar+oxygen-isotopic+composition%3B+predictions+and+implications+for+solar+nebula+processes&rft.au=Wiens%2C+R+C%3BHuss%2C+G+R%3BBurnett%2C+D+S&rft.aulast=Wiens&rft.aufirst=R&rft.date=1999-01-01&rft.volume=34&rft.issue=1&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 53 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon monoxide; chemical composition; isotope ratios; isotopes; mixing; models; O-17/O-16; O-18/O-16; oxygen; prediction; solar nebula; solar system; stable isotopes; water ER - TY - JOUR T1 - Migration of plutonium in ground water at the Nevada Test Site AN - 52484814; 1999-036700 AB - Radionuclides detected in groundwater from aquifers at this site are associated with the colloidal fraction of the groundwater. The (super 240) Pu/ (super 239) Pu ratio of these samples indicates that an underground nuclear test 1.3 km N of the sample collection site was the origin of the Pu. The extent of radionuclide migration may thus have been significantly underestimated in previous models of radionuclide transport, and the implications for the containment of radwaste are discussed. JF - Nature (London) AU - Kersting, A B AU - Efurd, D W AU - Finnegan, D L AU - Rokop, D J AU - Smith, D K AU - Thompson, J L Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 56 EP - 59 PB - Macmillan Journals, London VL - 396 IS - 6714 SN - 0028-0836, 0028-0836 KW - United States KW - sorption KW - volcanic rocks KW - site exploration KW - plutonium KW - igneous rocks KW - environmental analysis KW - X-ray diffraction analysis KW - radioactive waste KW - ground water KW - Nevada Test Site KW - mineral composition KW - transport KW - chemical properties KW - tuff KW - geochemistry KW - Nevada KW - bedrock KW - colloidal materials KW - underground storage KW - pollutants KW - pollution KW - aquifers KW - pyroclastics KW - metals KW - risk assessment KW - waste disposal KW - actinides KW - SEM data KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52484814?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Migration+of+plutonium+in+ground+water+at+the+Nevada+Test+Site&rft.au=Kersting%2C+A+B%3BEfurd%2C+D+W%3BFinnegan%2C+D+L%3BRokop%2C+D+J%3BSmith%2C+D+K%3BThompson%2C+J+L&rft.aulast=Kersting&rft.aufirst=A&rft.date=1999-01-01&rft.volume=396&rft.issue=6714&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F16231 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. sect., sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - actinides; aquifers; bedrock; chemical properties; colloidal materials; environmental analysis; geochemistry; ground water; igneous rocks; metals; mineral composition; Nevada; Nevada Test Site; permeability; plutonium; pollutants; pollution; pyroclastics; radioactive waste; risk assessment; SEM data; site exploration; sorption; transport; tuff; underground storage; United States; volcanic rocks; waste disposal; X-ray diffraction analysis DO - http://dx.doi.org/10.1038/16231 ER - TY - JOUR T1 - Nature's uncommon elements; plutonium and technetium AN - 52473082; 1999-040333 AB - Analyses are presented of natural (super 99) Tc and (super 239) Pu in three uranium ore deposits selected for their different geochemical environments: Cigar Lake, N Saskatchewan, Canada; Koongarra, Northern Territory, Australia; and Beaverlodge, Saskatchewan, Canada. Analyses were made by thermal ionization MS. For the Cigar Lake samples, atomic ratios of (super 99) Tc/U range 1.4 X 10 (super -12) to 51 X 10 (super -12) , and of (super 239) Pu 2.4 X 10 (super -12) to 44 X 10 (super 12) . About 50 of the samples showed apparent excesses of (super 99) Tc and (super 239) Pu beyond the amounts predicted for secular equilibrium suggesting redistribution of these isotopes within the deposit. All samples are in secular equilibrium with respect to (super 230) Th, (super 234) U and (super 238) U indicating that the U in the deposits has not undergone incongruent dissolution. The results support the concept of the long-term storage of Pu- and Tc- bearing wastes in geological settings. JF - Geochimica et Cosmochimica Acta AU - Curtis, David AU - Fabryka-Martin, June AU - Dixon, Paul AU - Cramer, Jan Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 275 EP - 285 PB - Pergamon, Oxford VL - 63 IS - 2 SN - 0016-7037, 0016-7037 KW - Cigar Lake Deposit KW - isotopes KW - plutonium KW - Pu-239 KW - natural materials KW - radioactive isotopes KW - ore minerals KW - oxides KW - geochemistry KW - technetium KW - concentration KW - experimental studies KW - Tc-99 KW - migration of elements KW - measurement KW - uranium ores KW - Canada KW - metals KW - natural analogs KW - metal ores KW - Western Canada KW - pitchblende KW - uraninite KW - Saskatchewan KW - actinides KW - northern Saskatchewan KW - 27A:Economic geology, geology of ore deposits KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52473082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Nature%27s+uncommon+elements%3B+plutonium+and+technetium&rft.au=Curtis%2C+David%3BFabryka-Martin%2C+June%3BDixon%2C+Paul%3BCramer%2C+Jan&rft.aulast=Curtis&rft.aufirst=David&rft.date=1999-01-01&rft.volume=63&rft.issue=2&rft.spage=275&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900282-8 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; Canada; Cigar Lake Deposit; concentration; experimental studies; geochemistry; isotopes; measurement; metal ores; metals; migration of elements; natural analogs; natural materials; northern Saskatchewan; ore minerals; oxides; pitchblende; plutonium; Pu-239; radioactive isotopes; Saskatchewan; Tc-99; technetium; uraninite; uranium ores; Western Canada DO - http://dx.doi.org/10.1016/S0016-7037(98)00282-8 ER - TY - JOUR T1 - Comet and asteroid hazards; threat and mitigation AN - 52385186; 2000-021118 AB - I discuss the magnitude of threat posed by comets or asteroids that might collide with the Earth. While the probability of collision is small, the effects could be devastating, suggesting that it should be carefully considered in relation to natural disasters. It is one of the few natural disasters that could be averted by technical means. Although many more complex schemes are possible, the most cost-effective and the only currently-available means of disruption (deflection or pulverization) is a nuclear explosive. I discuss optimal tactics for terminal intercept, which can be extended to remote-interdiction scenarios as well. The optimal mass ratio of an interceptor rocket carrying a nuclear explosive depends mainly on the ratio of the exhaust velocity to the object closing velocity. Nuclear explosives can be employed in three different modes depending on their location at detonation: (1) buried below the object's surface by penetrating vehicle; (2) detonated at the object's surface; or (3) detonated some distance above the surface. I show results of a model for gravitationally bound objects and obtain the maximum non-fracturing deflection speed for a variety of object sizes and structures. For a single engagement, I conclude that the non-fracturing deflection speed obtainable with a stand-off device is about four times the speed obtainable with a surface-burst device. Furthermore, the non-fracturing deflection speed is somewhat dependent on the number of competent components of the object. Generalizations indicate: (1) asteroids more than 3 km in diameter can be most efficiently deflected with a surface burst; (2) asteroids as small as 1/2 km can be effectively deflected with a stand-off device; (3) smaller asteroids are best pulverized. JF - Science of Tsunami Hazards AU - Solem, Johndale C Y1 - 1999 PY - 1999 DA - 1999 SP - 141 EP - 154 PB - Tsunami Society, Honolulu, HI VL - 17 IS - 3 SN - 8755-6839, 8755-6839 KW - comets KW - geologic hazards KW - asteroids KW - statistical analysis KW - damage KW - optimization KW - risk assessment KW - effects KW - equations KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52385186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+of+Tsunami+Hazards&rft.atitle=Comet+and+asteroid+hazards%3B+threat+and+mitigation&rft.au=Solem%2C+Johndale+C&rft.aulast=Solem&rft.aufirst=Johndale&rft.date=1999-01-01&rft.volume=17&rft.issue=3&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Science+of+Tsunami+Hazards&rft.issn=87556839&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 44 N1 - PubXState - HI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; comets; damage; effects; equations; geologic hazards; optimization; risk assessment; statistical analysis ER - TY - JOUR T1 - Modeling the 1958 Lituya Bay mega-tsunami AN - 52384859; 2000-021117 AB - Lituya Bay, Alaska is a T-Shaped bay, 7 miles long and up to 2 miles wide. The two arms at the head of the bay, Gilbert and Crillon Inlets, are part of a trench along the Fairweather Fault. On July 8, 1958, an 7.5 Magnitude earthquake occurred along the Fairweather fault with an epicenter near Lituya Bay. A mega-tsunami wave was generated that washed out trees to a maximum altitude of 520 meters at the entrance of Gilbert Inlet. Much of the rest of the shoreline of the Bay was denuded by the tsunami from 30 to 200 meters altitude. The SWAN code which solves the nonlinear long wave equations was used to numerically model possible tsunami wave generation mechanisms. A landslide of about 30 million cubic meters was probably triggered by the earthquake. It has been assumed to have been the source of the tsunami wave even though it was difficult to correlate with the eye-witness observations. Numerical studies indicated that the tsunami wave generated by a simple landslide gave tsunami wave inundations that were less than a tenth of those observed if the slide was assumed to lift a volume of water corresponding to the volume of the slide to above normal sea level. Another possible source of the tsunami was a massive uplift of the sea floor along the Fairweather Fault that underlies the Gilbert and Crillon Inlets at the head of the bay. Even if all the water in the inlets was initially raised to above normal sea level, the observed tsunami inundations could not be numerically reproduced. Dr. George Pararas-Carayannis suggested that tsunami wave was formed by a landslide impact similar to an asteroid impact making a cavity to the inlet ocean floor and a wave that splashed up to 520 meters height. If the run-up was 50 to 100 meters thick, adequate water is available between the slide and the run-up and the results are consistent with the observations. Further studies will require full Navier-Stokes modeling similar to those required for asteroid generated tsunami waves. JF - Science of Tsunami Hazards AU - Mader, Charles L Y1 - 1999 PY - 1999 DA - 1999 SP - 57 EP - 67 PB - Tsunami Society, Honolulu, HI VL - 17 IS - 1 SN - 8755-6839, 8755-6839 KW - United States KW - tsunamis KW - East Pacific KW - monitoring KW - Northeast Pacific KW - geologic hazards KW - magnitude KW - models KW - North Pacific KW - Lituya Bay KW - Gulf of Alaska KW - Pacific Ocean KW - risk assessment KW - propagation KW - Alaska KW - earthquakes KW - faults KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52384859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+of+Tsunami+Hazards&rft.atitle=Modeling+the+1958+Lituya+Bay+mega-tsunami&rft.au=Mader%2C+Charles+L&rft.aulast=Mader&rft.aufirst=Charles&rft.date=1999-01-01&rft.volume=17&rft.issue=1&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Science+of+Tsunami+Hazards&rft.issn=87556839&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 3 N1 - PubXState - HI N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; earthquakes; East Pacific; faults; geologic hazards; Gulf of Alaska; Lituya Bay; magnitude; models; monitoring; North Pacific; Northeast Pacific; Pacific Ocean; propagation; risk assessment; tsunamis; United States ER - TY - JOUR T1 - Temporal relations and geochemical features of felsic volcanism in the central sector of the Main Ethiopian Rift AN - 52360064; 2000-039658 JF - Acta Vulcanologica AU - WoldeGabriel, G AU - Walter, R C AU - Hart, W K AU - Mertzman, S A AU - Aronson, J L A2 - Boccaletti, Mario A2 - Peccerillo, Angelo Y1 - 1999 PY - 1999 DA - 1999 SP - 53 EP - 67 PB - Giardini Editore, Pisa VL - 11 IS - 1 SN - 1121-9114, 1121-9114 KW - Quaternary KW - rift zones KW - igneous rocks KW - East Africa KW - Paleogene KW - felsic composition KW - Miocene KW - Cenozoic KW - Tertiary KW - East African Rift KW - Ethiopia KW - volcanism KW - time factor KW - Neogene KW - magmas KW - eruptions KW - Pliocene KW - Pleistocene KW - Ethiopian Rift KW - Africa KW - chemical composition KW - geochemistry KW - Oligocene KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52360064?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Vulcanologica&rft.atitle=Temporal+relations+and+geochemical+features+of+felsic+volcanism+in+the+central+sector+of+the+Main+Ethiopian+Rift&rft.au=WoldeGabriel%2C+G%3BWalter%2C+R+C%3BHart%2C+W+K%3BMertzman%2C+S+A%3BAronson%2C+J+L&rft.aulast=WoldeGabriel&rft.aufirst=G&rft.date=1999-01-01&rft.volume=11&rft.issue=1&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Acta+Vulcanologica&rft.issn=11219114&rft_id=info:doi/ L2 - http://gnv.ingv.it/pubblicazioni/acta_vulcanologica/av_index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by CNR, Comitato Scienze Geologiche e Minerarie, Rome, Italy N1 - Date revised - 2000-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Africa; Cenozoic; chemical composition; East Africa; East African Rift; eruptions; Ethiopia; Ethiopian Rift; felsic composition; geochemistry; igneous rocks; magmas; Miocene; Neogene; Oligocene; Paleogene; Pleistocene; Pliocene; Quaternary; rift zones; Tertiary; time factor; volcanism ER - TY - JOUR T1 - Use of organic and inorganic solutes in tracing oil-field salt-water sources; delineation of recent versus historic sources AN - 52356506; 2000-039147 AB - Salt water from both natural and anthropogenic sources impacts ground and surface water in west Texas. Potential oil-field sources include former evaporation pits, historical shallow completion of surface casings, and casing or plugging failure within boreholes that allows connection between fresh and saline zones. Waterflooding to enhance oil recovery may result in discharge of salt water into potable ground-water zones if well completion does not ensure fluids are confined to the injection zone. Our hypothesis is that differences in water chemistry, including the presence of soluble organic constituents such as benzene, and ratios of major ions and metals can be used to distinguish between old sources, such as pits, and more recent sources. BTEX constituents should be low in waters originating from old pit sources because of biodegradation, sorption, and volatilization over time. At our study area near the southeastern limit of the Ogallala aquifer, ongoing seepage of saline ground water from springs impacts vegetation and water quality in shallow wells. The source of the salinity is unknown, however, the oil-field site includes active and abandoned oil wells, old evaporation pits, and active and plugged salt-water injection wells. The oil field currently uses waterflooding techniques to enhance oil recovery. Natural background salinities in the Ogallala are relatively low, with dissolved chloride of 100 to 400 mg/L. Ground water, surface spring waters, and produced water samples were analyzed for dissolved solids, major cations, major anions, and BTEX using standard analytical methods. Hydrogeology of the site was defined with results from 15 monitoring wells. Sampling location data were entered into a geographic information system (GIS) database, along with the locations of current and former oil and injection wells, and local springs and surface water bodies. Locations of former evaporation pits were extracted from georeferenced air photos from 1957 and 1963 and added to the GIS. Two ground-water zones of differing geochemistry were found outside of the background area. The first zone, located immediately upgradient of the seep area, contained the highest salinity water. Chloride concentrations varied from 5,000 to over 25,000 mg/L. The highest benzene concentrations were also found in this zone, varying from 1000 to 7000 mu g/l. This is less than the benzene concentrations found in the produced water (avg. 12,000 mu g/L). These highest benzene values along with the presence of toluene correlate closely with the highest chloride zone within the aquifer. Chloride:bromide ratios within the high-chloride zone were similar to produced water ratios. Relative concentrations of calcium, magnesium, sulfate, and iron also tended to resemble patterns noted in the produced water samples. No clear trends were noted in metals such as barium and vanadium, between background, the saline zone, and the produced water. Chromium and nickel were undetected above method detection limits in all samples. A second zone exhibited low benzene concentrations in ground water (<5 to 34.2 mg/l). These low benzene concentrations correlated with moderately elevated chloride concentrations (778 to 5779 mg/l)., and chloride:bromide ratios approximately one-half of the high-chloride zone. Relative concentrations of other ions tended to be different from produced water, but also were different from the background zone. For example, sulfate and calcium were typically twice the concentrations found in background waters. Nitrate was also detected at low levels in this area. This second zone, while upgradient and side-gradient of the first, is also downgradient of several former pits, the inferred sources. Water originating from the pits would date from before 1960 (the time of pit closure) allowing time for evolutionary changes in water chemistry. Low benzene concentrations and a lack of toluene, ethylbenzene and xylenes may reflect biodegradation in this area. The intermediate levels of salinity are much higher than background but much lower than the high salinity zone. The elevated BTEX zone and the elevated chloride zone were superposed on the map of well locations using GIS, enabling several oil wells and one former injection well to be targeted for further study for source identification. JF - Proceedings of the Petroleum Hydrocarbons and Organic Chemicals in Ground Water: Prevention, Detection and Remediation Conference AU - Sullivan, E J AU - Nava, R A2 - Stanley, Anita Y1 - 1999 PY - 1999 DA - 1999 SP - 331 EP - 347 PB - Ground Water Publishing Company, Westerville, OH VL - 2000 KW - United States KW - solute transport KW - water quality KW - biodegradation KW - pollutants KW - Ogallala Aquifer KW - West Texas KW - solutes KW - pollution KW - Texas KW - petroleum products KW - salt water KW - hydrochemistry KW - BTEX KW - inorganic materials KW - ground water KW - provenance KW - organic compounds KW - metals KW - tracers KW - hydrocarbons KW - geochemistry KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52356506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Petroleum+Hydrocarbons+and+Organic+Chemicals+in+Ground+Water%3A+Prevention%2C+Detection+and+Remediation+Conference&rft.atitle=Use+of+organic+and+inorganic+solutes+in+tracing+oil-field+salt-water+sources%3B+delineation+of+recent+versus+historic+sources&rft.au=Sullivan%2C+E+J%3BNava%2C+R&rft.aulast=Sullivan&rft.aufirst=E&rft.date=1999-01-01&rft.volume=2000&rft.issue=&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Petroleum+Hydrocarbons+and+Organic+Chemicals+in+Ground+Water%3A+Prevention%2C+Detection+and+Remediation+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 2000 petroleum hydrocarbons and organic chemicals in ground water; prevention, detection, and remediation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 17 N1 - PubXState - OH N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #04977 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; biodegradation; BTEX; geochemistry; ground water; hydrocarbons; hydrochemistry; inorganic materials; metals; Ogallala Aquifer; organic compounds; petroleum products; pollutants; pollution; provenance; salt water; solute transport; solutes; Texas; tracers; United States; water quality; West Texas ER - TY - JOUR T1 - Temporal and geochemical characteristics of Tertiary volcanic rocks and tectonic history in the southern Main Ethiopian Rift and the adjacent volcanic fields AN - 52356447; 2000-039661 JF - Acta Vulcanologica AU - Yemane, T AU - WoldeGabriel, G AU - Tesfaye, S AU - Berhe, S M AU - Durary, S AU - Ebinger, C AU - Kelley, S A2 - Boccaletti, Mario A2 - Peccerillo, Angelo Y1 - 1999 PY - 1999 DA - 1999 SP - 99 EP - 119 PB - Giardini Editore, Pisa VL - 11 IS - 1 SN - 1121-9114, 1121-9114 KW - volcanic rocks KW - isotopes KW - igneous rocks KW - East Africa KW - rifting KW - stable isotopes KW - Cenozoic KW - Ar-40/Ar-39 KW - East African Rift KW - radioactive isotopes KW - Ethiopia KW - geochronology KW - volcanism KW - noble gases KW - chemical composition KW - geochemistry KW - rift zones KW - isotope ratios KW - argon KW - models KW - Tertiary KW - plate tectonics KW - petrography KW - Ethiopian Rift KW - Africa KW - 16:Structural geology KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52356447?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Vulcanologica&rft.atitle=Temporal+and+geochemical+characteristics+of+Tertiary+volcanic+rocks+and+tectonic+history+in+the+southern+Main+Ethiopian+Rift+and+the+adjacent+volcanic+fields&rft.au=Yemane%2C+T%3BWoldeGabriel%2C+G%3BTesfaye%2C+S%3BBerhe%2C+S+M%3BDurary%2C+S%3BEbinger%2C+C%3BKelley%2C+S&rft.aulast=Yemane&rft.aufirst=T&rft.date=1999-01-01&rft.volume=11&rft.issue=1&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Acta+Vulcanologica&rft.issn=11219114&rft_id=info:doi/ L2 - http://gnv.ingv.it/pubblicazioni/acta_vulcanologica/av_index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by CNR, Comitato Scienze Geologiche e Minerarie, Rome, Italy N1 - Date revised - 2000-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Africa; Ar-40/Ar-39; argon; Cenozoic; chemical composition; East Africa; East African Rift; Ethiopia; Ethiopian Rift; geochemistry; geochronology; igneous rocks; isotope ratios; isotopes; models; noble gases; petrography; plate tectonics; radioactive isotopes; rift zones; rifting; stable isotopes; Tertiary; volcanic rocks; volcanism ER - TY - BOOK T1 - Phosphate-induced metal stabilization for the remediation of acid mine drainage and heavy-metal contamination AN - 52343566; 2000-048632 AB - Phosphate-Induced Metal Stabilization (PIMS) stabilizes a wide range of metals by chemically binding them into new stable phosphate phases (apatite minerals) and other low-solubility phases. The apatite can be emplaced as a down-gradient permeable reactive barrier, can be mixed in with contaminated soil or waste, or can be used as a liner. The metals sequestered in apatites form new minerals that have great durability and leach resistance significantly exceeding other chemically stabilized waste forms, because the apatite mineral structure is stable over a wide range of conditions, e.g., pH 2 to 12, up to 1000 degrees C, in aqueous and non-aqueous phase liquids, and under disruptions such as earthquakes, ground subsidence or human intrusion, for geologically long time periods, i.e., millions of years. The reactions are fast, occurring in minutes. Experiments on Bunker Hill Superfund site soils and groundwater evaluated the use of various materials as reactive barriers and soil amendments to remediate heavy metal contamination for acid mine drainage. The most effective material was a new, highly reactive form of the mineral apatite, Apatite II, developed especially for remediation applications. Apatite II was hundreds to thousands of times more effective than other types of apatite and phosphate rock, 3 different types of bone char, mixed valent oxide iron filings, granular activated charcoal (GAC), zeolites, peat moss, exchange resins, Nucon Nusorb and Mersorb-3, especially for U, Pb, Cd and Zn. The removal of dissolved uranium (U) from DOE Y-12 facility NT-1 groundwater at Oak Ridge, Tennessee was also investigated using various reactive materials including Apatite II,. Apatite II was much more effective than all other materials at removing U, even in the presence of nitrate concentrations exceeding 11,000 ppm. There was no pH effect for Pb and U sorption, but there was a strong effect of solution pH on Zn and Cd sorption, reflecting different mechanisms. Uranium precipitated as autunite and Pb precipitated as pyromorphite. Zn and Cd mostly sorbed onto particles but also precipitated as hopeite, hydrocerrusite, zincite, otavite and other phases. JF - Sudbury '99; Mining and the environment II AU - Conca, James AU - Wright, Judith AU - Mockler, T Joseph A2 - Goldsack, Douglas E. A2 - Belzile, Nelson A2 - Yearwood, P. A2 - Hall, G. J. Y1 - 1999 PY - 1999 DA - 1999 PB - Publisher unknown SN - 0886670470 KW - United States KW - zinc KW - reclamation KW - lead KW - Success Mine KW - PIMS KW - remediation KW - ground water KW - Bunker Hill Mine KW - cadmium KW - heavy metals KW - disposal barriers KW - soils KW - mines KW - Idaho KW - acid mine drainage KW - pollutants KW - pollution KW - Shoshone County Idaho KW - case studies KW - phosphate ion KW - Phosphate-Induced Metal Stabilization KW - metals KW - uranium KW - waste disposal KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52343566?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Conca%2C+James%3BWright%2C+Judith%3BMockler%2C+T+Joseph&rft.aulast=Conca&rft.aufirst=James&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0886670470&rft.btitle=Phosphate-induced+metal+stabilization+for+the+remediation+of+acid+mine+drainage+and+heavy-metal+contamination&rft.title=Phosphate-induced+metal+stabilization+for+the+remediation+of+acid+mine+drainage+and+heavy-metal+contamination&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sudbury '99; Mining and the environment II N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Physical, chemical, and isotopic data for samples from the Anderson Spring area, Lake County, California, 1998-1999 AN - 52331293; 2000-055852 JF - Open-File Report - U. S. Geological Survey AU - Janik, C J AU - Goff, Fraser AU - Sorey, M L AU - Rytuba, J J AU - Counce, E M AU - Colvard, E M AU - Huebner, M AU - White, L D AU - Foster, A Y1 - 1999 PY - 1999 DA - 1999 SP - 27 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - bedrock KW - water quality KW - concentration KW - isotopes KW - hydrochemistry KW - thermal waters KW - ground water KW - gases KW - California KW - Anderson Springs KW - sediments KW - springs KW - Lake County California KW - hot springs KW - chemical composition KW - USGS KW - geochemistry KW - mineral waters KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52331293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Physical%2C+chemical%2C+and+isotopic+data+for+samples+from+the+Anderson+Spring+area%2C+Lake+County%2C+California%2C+1998-1999&rft.au=Janik%2C+C+J%3BGoff%2C+Fraser%3BSorey%2C+M+L%3BRytuba%2C+J+J%3BCounce%2C+E+M%3BColvard%2C+E+M%3BHuebner%2C+M%3BWhite%2C+L+D%3BFoster%2C+A&rft.aulast=Janik&rft.aufirst=C&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://geopubs.wr.usgs.gov/open-file/of99-585/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 25 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - 5 tables, sketch maps N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - Anderson Springs; bedrock; California; chemical composition; concentration; gases; geochemistry; ground water; hot springs; hydrochemistry; isotopes; Lake County California; mineral waters; sediments; springs; thermal waters; United States; USGS; water quality ER - TY - JOUR T1 - Plutonium speciation and its effects on environmental migration AN - 52326206; 2000-056912 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Neu, M P AU - Runde, W H AU - Clark, D L AU - Conradson, S D AU - Efurd, D W AU - Janecky, D R AU - Kaszuba, J P AU - Tait, C D AU - Haire, R G AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - unpaginated PB - American Chemical Society, Washington, DC VL - 218, Part 1 SN - 0065-7727, 0065-7727 KW - United States KW - Pu-240/Pu-239 KW - toxic materials KW - isotopes KW - plutonium KW - isotope ratios KW - Rocky Flats Plant KW - migration of elements KW - geochemical cycle KW - radioactive isotopes KW - metals KW - ecology KW - thermodynamic properties KW - Colorado KW - actinides KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52326206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Plutonium+speciation+and+its+effects+on+environmental+migration&rft.au=Neu%2C+M+P%3BRunde%2C+W+H%3BClark%2C+D+L%3BConradson%2C+S+D%3BEfurd%2C+D+W%3BJanecky%2C+D+R%3BKaszuba%2C+J+P%3BTait%2C+C+D%3BHaire%2C+R+G%3BAnonymous&rft.aulast=Neu&rft.aufirst=M&rft.date=1999-01-01&rft.volume=218%2C+Part+1&rft.issue=&rft.spage=&rft.isbn=9841236852&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 218th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; chemical fractionation; Colorado; ecology; geochemical cycle; isotope ratios; isotopes; metals; migration of elements; plutonium; Pu-240/Pu-239; radioactive isotopes; Rocky Flats Plant; thermodynamic properties; toxic materials; United States ER - TY - JOUR T1 - Flow-path textures and mineralogy in tuffs of the unsaturated zone AN - 52322086; 2000-065052 AB - The high concentration of chlorine-36 ( (super 36) Cl) produced by above-ground nuclear tests (bomb-pulse) provides a fortuitous tracer for infiltration during the last 50 years, and is used to detect fast flow in the unsaturated zone at Yucca Mountain, Nevada, a thick deposit of welded and nonwelded tuffs. Evidence of fast flow as much as 300 m into the mountain has been found in several zones in a 7.7-km tunnel. Many zones are associated with faults that provide continuous fracture flow paths from the surface. In the Sundance fault zone, water with the bomb-pulse signature has moved into subsidiary fractures and breccia zones. We found no highly distinctive mineralogic associations of fault and fracture samples containing bomb-pulse (super 36) Cl. Bomb-pulse sites are slightly more likely to have calcite deposits than are non-bomb-pulse sites. Most other mineralogic and textural associations of fast-flow paths reflect the structural processes leading to locally enhanced permeability rather than the effects of ground-water percolation. Water movement through the rock was investigated by isotopic analysis of paired samples representing breccia zones and fractured wall rock bounding the breccia zones. Where bomb-pulse (super 36) Cl is present, the waters in bounding fractures and intergranular pores of the fast pathways are not in equilibrium with respect to the isotopic signal. In structural domains that have experienced extensional deformation, fluid flow within a breccia is equivalent to matrix flow in a particulate rock, whereas true fracture flow occurs along the boundaries of a breccia zone. Where shearing predominated over extension, the boundary between wall rock and breccia is rough and irregular with a tight wallrock/breccia contact. The absence of a gap between the breccia and the wall rock helps maintain fluid flow within the breccia instead of along the wallrock/breccia boundary, leading to higher (super 36) Cl/Cl values in the breccia than in the wall rock. JF - Geophysical Monograph AU - Levy, Schon AU - Chipera, Steve AU - WoldeGabriel, Giday AU - Fabryka-Martin, June AU - Roach, Jeffrey AU - Sweetkind, Donald S Y1 - 1999 PY - 1999 DA - 1999 SP - 159 EP - 184 PB - American Geophysical Union, Washington, DC VL - 113 SN - 0065-8448, 0065-8448 KW - United States KW - solute transport KW - volcanic rocks KW - isotopes KW - igneous rocks KW - halogens KW - unsaturated zone KW - ground water KW - fractures KW - sedimentary rocks KW - radioactive isotopes KW - wall rocks KW - tracers KW - hydrodynamics KW - tuff KW - Yucca Mountain KW - Nevada KW - faults KW - chlorine KW - breccia KW - textures KW - Cl-36 KW - rates KW - Nye County Nevada KW - calcite KW - pyroclastics KW - waste disposal KW - clastic rocks KW - carbonates KW - minerals KW - Sundance Fault KW - fault zones KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52322086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Flow-path+textures+and+mineralogy+in+tuffs+of+the+unsaturated+zone&rft.au=Levy%2C+Schon%3BChipera%2C+Steve%3BWoldeGabriel%2C+Giday%3BFabryka-Martin%2C+June%3BRoach%2C+Jeffrey%3BSweetkind%2C+Donald+S&rft.aulast=Levy&rft.aufirst=Schon&rft.date=1999-01-01&rft.volume=113&rft.issue=&rft.spage=159&rft.isbn=9781118664681&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1029%2FGM113p0159 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - breccia; calcite; carbonates; chlorine; Cl-36; clastic rocks; fault zones; faults; fractures; ground water; halogens; hydrodynamics; igneous rocks; isotopes; minerals; Nevada; Nye County Nevada; pyroclastics; radioactive isotopes; rates; sedimentary rocks; solute transport; Sundance Fault; textures; tracers; tuff; United States; unsaturated zone; volcanic rocks; wall rocks; waste disposal; Yucca Mountain DO - http://dx.doi.org/10.1029/GM113p0159 ER - TY - JOUR T1 - Enhanced hydrogen abundances near both lunar poles AN - 52315874; 2000-068026 JF - LPI Contribution AU - Feldman, W C AU - Maurice, S AU - Lawrence, D J AU - Getenay, I AU - Elphic, R C AU - Barrraclough, B L AU - Binder, A B AU - Gaddis, Lisa R AU - Shearer, Charles K Y1 - 1999 PY - 1999 DA - 1999 SP - 14 EP - 15 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - sampling KW - Moon KW - lunar poles KW - hydrogen KW - geochemistry KW - instruments KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52315874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Enhanced+hydrogen+abundances+near+both+lunar+poles&rft.au=Feldman%2C+W+C%3BMaurice%2C+S%3BLawrence%2C+D+J%3BGetenay%2C+I%3BElphic%2C+R+C%3BBarrraclough%2C+B+L%3BBinder%2C+A+B%3BGaddis%2C+Lisa+R%3BShearer%2C+Charles+K&rft.aulast=Feldman&rft.aufirst=W&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon II; understanding the Moon through the integration of diverse datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - geochemistry; hydrogen; instruments; lunar poles; Moon; observations; sampling ER - TY - JOUR T1 - High-energy neutrons from the Moon AN - 52315530; 2000-068047 JF - LPI Contribution AU - Maurice, S AU - Feldman, W C AU - Lawrence, D J AU - Elphic, R E AU - Gasnault, O AU - d'Uston, C AU - Lucey, P G AU - Gaddis, Lisa R AU - Shearer, Charles K Y1 - 1999 PY - 1999 DA - 1999 SP - 42 EP - 43 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - neutrons KW - Moon KW - spectra KW - properties KW - geochemistry KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52315530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=High-energy+neutrons+from+the+Moon&rft.au=Maurice%2C+S%3BFeldman%2C+W+C%3BLawrence%2C+D+J%3BElphic%2C+R+E%3BGasnault%2C+O%3Bd%27Uston%2C+C%3BLucey%2C+P+G%3BGaddis%2C+Lisa+R%3BShearer%2C+Charles+K&rft.aulast=Maurice&rft.aufirst=S&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=42&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon II; understanding the Moon through the integration of diverse datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - geochemistry; lunar soils; Moon; neutrons; properties; spectra ER - TY - JOUR T1 - Integration of the ultraviolet-visible spectral Clementine data and the gamma-ray lunar prospector data; preliminary results concerning FeO, TiO (sub 2) , and the abundances of the lunar surface at global scale AN - 52315047; 2000-068020 JF - LPI Contribution AU - Chevrel, S D AU - Pinet, P C AU - Barreau, G AU - Daydou, Y AU - Richard, G AU - Maurice, S AU - Feldman, W C AU - Gaddis, Lisa R AU - Shearer, Charles K Y1 - 1999 PY - 1999 DA - 1999 SP - 6 EP - 7 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - concentration KW - iron oxides KW - Moon KW - gamma rays KW - rutile KW - oxides KW - Clementine Program KW - properties KW - geochemistry KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52315047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Integration+of+the+ultraviolet-visible+spectral+Clementine+data+and+the+gamma-ray+lunar+prospector+data%3B+preliminary+results+concerning+FeO%2C+TiO+%28sub+2%29+%2C+and+the+abundances+of+the+lunar+surface+at+global+scale&rft.au=Chevrel%2C+S+D%3BPinet%2C+P+C%3BBarreau%2C+G%3BDaydou%2C+Y%3BRichard%2C+G%3BMaurice%2C+S%3BFeldman%2C+W+C%3BGaddis%2C+Lisa+R%3BShearer%2C+Charles+K&rft.aulast=Chevrel&rft.aufirst=S&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=6&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon II; understanding the Moon through the integration of diverse datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - Clementine Program; concentration; gamma rays; geochemistry; iron oxides; lunar soils; Moon; oxides; properties; rutile ER - TY - JOUR T1 - Global geochemical variation on the lunar surface; a three-element approach AN - 52313864; 2000-068065 JF - LPI Contribution AU - Thomsen, D R AU - Lawrence, D J AU - Vaniman, D T AU - Feldman, W C AU - Elphic, R C AU - Barraclough, B L AU - Maurice, S AU - Lucey, P G AU - Binder, A B AU - Gaddis, Lisa R AU - Shearer, Charles K Y1 - 1999 PY - 1999 DA - 1999 SP - 66 EP - 68 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - lunar surface KW - KREEP KW - Moon KW - geochemistry KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52313864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Global+geochemical+variation+on+the+lunar+surface%3B+a+three-element+approach&rft.au=Thomsen%2C+D+R%3BLawrence%2C+D+J%3BVaniman%2C+D+T%3BFeldman%2C+W+C%3BElphic%2C+R+C%3BBarraclough%2C+B+L%3BMaurice%2C+S%3BLucey%2C+P+G%3BBinder%2C+A+B%3BGaddis%2C+Lisa+R%3BShearer%2C+Charles+K&rft.aulast=Thomsen&rft.aufirst=D&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon II; understanding the Moon through the integration of diverse datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - geochemistry; KREEP; lunar soils; lunar surface; Moon ER - TY - JOUR T1 - Lunar elemental abundances from gamma-ray and neutron measurements AN - 52313844; 2000-068053 JF - LPI Contribution AU - Reedy, R C AU - Vaniman, D T AU - Gaddis, Lisa R AU - Shearer, Charles K Y1 - 1999 PY - 1999 DA - 1999 SP - 50 EP - 52 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - KREEP KW - neutrons KW - Moon KW - cartography KW - gamma-ray spectra KW - spectra KW - geochemistry KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52313844?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Lunar+elemental+abundances+from+gamma-ray+and+neutron+measurements&rft.au=Reedy%2C+R+C%3BVaniman%2C+D+T%3BGaddis%2C+Lisa+R%3BShearer%2C+Charles+K&rft.aulast=Reedy&rft.aufirst=R&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=50&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon II; understanding the Moon through the integration of diverse datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - cartography; gamma-ray spectra; geochemistry; KREEP; lunar soils; Moon; neutrons; spectra ER - TY - JOUR T1 - Iron abundances on the moon as seen by the lunar prospector gamma-ray spectrometer AN - 52311608; 2000-068044 JF - LPI Contribution AU - Lawrence, D J AU - Feldman, W C AU - Barraclough, B L AU - Elphic, R C AU - Maurice, S AU - Binder, A B AU - Lucey, P G AU - Gaddis, Lisa R AU - Shearer, Charles K Y1 - 1999 PY - 1999 DA - 1999 SP - 38 EP - 39 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - petrology KW - Moon KW - metals KW - gamma-ray spectra KW - spectra KW - geochemistry KW - distribution KW - iron KW - observations KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52311608?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Iron+abundances+on+the+moon+as+seen+by+the+lunar+prospector+gamma-ray+spectrometer&rft.au=Lawrence%2C+D+J%3BFeldman%2C+W+C%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BMaurice%2C+S%3BBinder%2C+A+B%3BLucey%2C+P+G%3BGaddis%2C+Lisa+R%3BShearer%2C+Charles+K&rft.aulast=Lawrence&rft.aufirst=D&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=38&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon II; understanding the Moon through the integration of diverse datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - distribution; gamma-ray spectra; geochemistry; iron; lunar soils; metals; Moon; observations; petrology; spectra ER - TY - JOUR T1 - Phosphate-induced metal stabilization for remediation of uranium contaminated waters and soils AN - 52272058; 2001-006914 AB - Phosphate-Induced Metal Stabilization (PIMS) treats a wide range of metals, especially uranium (U) and lead (Pb), in situ or ex situ, by chemically binding them into new stable phosphate phases and other low-solubility phases that are stable over geologic time. Some form of the mineral apatite is necessary for this technology, especially for instigating the heterogeneous nucleation of metal-apatite phases necessary for remediation under environmental conditions. The efficiency comes from the extremely low solubility products of the resultant metal-apatites, e.g., for U phosphate (autunite) Ksp = 10-48, and for Pb apatite (pyromorphite) Ksp = 10-80. However, most apatites do not have the suitable characteristics of substituted F and CO32, low initial trace metal concentrations, and high microporosity necessary for optimal performance in the field. A special form of apatite, Apatite II, has been found to be the most reactive, most cost-effective apatite available having optimal structural and chemical characteristics for metal and radionuclide remediation. Apatite can be emplaced as a down-gradient permeable reactive barrier, can be mixed in with contaminated soil or waste, or can be used as a liner. Apatite II is also the best material available for non-specific metal adsorption, is an excellent buffer for neutralizing acidity through PO43-, OH-, and substituted Co32-, and exerts control on the chemical activities of other species leading to the precipitation of oxide-, hydroxide- and carbonate metal phases. Non-apatite phosphate and mixture of precursor constituents will not perform as well, if at all, under environmental conditions. This technology has been successfully demonstrated on contaminated soils and groundwaters for U, Pb, Cd, and Zn and Cu from mining sites and from Department of Energy sites. Apatite II can stabilize over 20% of its weight in uranium. As an example of cost-savings, a PIMS permeable reactive barrier could treat a groundwater, and seep, or waste stream contaminated with 10 ppm dissolved U at 50 gpm for over 30 years for less than $100.000 with no O&M costs. II is also the best material available for non-specific metal adsorption, is an excellent buffer for neutralizing acidity through PO43-, OH-, and substituted CO32-, and exerts control on the chemical activities of other species leading to the precipitation of oxide-, hydroxide- and carbonate metal phases. Non-apatite phosphate and mixtures of precursor constituents will not perform as well, if at all, under environmental conditions. This technology has been successfully demonstrated on contaminated soils and groundwaters for U, Pb, Cd, Zn and Cu from mining sites and from Department of Energy sites. Apatite II can stabilize over 20% of its weight in uranium. As an example of cost-savings, a PIMS permeable reactive barrier could treat a groundwater, seep, or waste stream contaminated with 10 ppm dissolved U at 50 gpm for over 30 years for less than JF - Abstracts with Programs - Geological Society of America AU - Conca, James L AU - Parker, Gary AU - Lu, Ningping AU - Wright, Judith AU - Heller, Paula AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 67 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - zinc KW - isotopes KW - copper KW - lead KW - substitution KW - seepage KW - remediation KW - ground water KW - radioactive isotopes KW - cadmium KW - water KW - soils KW - apatite KW - stabilization KW - in situ KW - pollutants KW - pollution KW - phosphates KW - solubility KW - nucleation KW - dissolved materials KW - metals KW - uranium KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52272058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Phosphate-induced+metal+stabilization+for+remediation+of+uranium+contaminated+waters+and+soils&rft.au=Conca%2C+James+L%3BParker%2C+Gary%3BLu%2C+Ningping%3BWright%2C+Judith%3BHeller%2C+Paula%3BAnonymous&rft.aulast=Conca&rft.aufirst=James&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; apatite; cadmium; copper; dissolved materials; ground water; in situ; isotopes; lead; metals; nucleation; phosphates; pollutants; pollution; radioactive isotopes; remediation; seepage; soils; solubility; stabilization; substitution; uranium; water; zinc ER - TY - JOUR T1 - Coordination of uranyl ion coprecipitated with calcite and aragonite AN - 52270627; 2001-006911 AB - The coordination of U(VI) coprecipitated as a minor impurity in calcite and in aragonite was examined using X-ray absorption fine structure (XAFS) spectroscopy and luminescence spectroscopy. Results indicate that different uranyl species occur in the calcite and aragonite, with the principal difference found in the equatorial coordination of the linear uranyl moiety (O = U = O). In aragonite the coordination is by three bidentate CO3 groups and is similar to that for the aqueous uranyl triscarbonato complex, the dominant U(VI) species in the growth solutions. The XAFS spectra for aragonite also reveal Ca atoms at 3. 8-4. 7 Aa from the uranium. In contrast, the equatorial coordination of the O = U = O moiety in calcite has an oxygen shell at a closer distance (2.33 vs. 2.43 Aa) and apparently with fewer oxygens than in aragonite. Weak contributions from carbon and possibly additional oxygen atoms at 2.89-3.20 Aa indicate these are CO3 groups, but with a different configuration than in aragonite and in the aqueous uranyl species. No backscatterers are evident beyond approximately 3.2 Aa, suggesting disorder or possibly more than one structural environment in the calcite sample. Structural differences between aragonite and calcite, or their surfaces, influence the local coordination of the coprecipitated uranyl species. The equatorial coordination of the aqueous uranyl species remains largely intact during incorporation into aragonite, but undergoes a change during incorporation into calcite, possibly from bidentate to monodentate coordination. Although it is not possible to determine the exact positions of the uranyl species within the different carbonate structures, the observed local configurations around the U(VI) atoms must give rise to significant local disruption of the structure, which may affect the solubility of uranyl-containing calcite and aragonite. The apparent disorder in the calcite and its absences in the aragonite may also suggest that calcite is not well suited for the long-term sequestration of U(VI). And the metastability of aragonite also makes it unsuitable. These findings also offer insight to the observation that uranium is preferentially taken up by aragonite relative to calcite. JF - Abstracts with Programs - Geological Society of America AU - Reeder, R J AU - Nugent, M AU - Lamble, G M AU - Tait, C D AU - Morris, D E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 67 EP - 68 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - aragonite KW - coordination KW - uranyl ion KW - crystal structure KW - solubility KW - calcite KW - luminescence KW - X-ray data KW - precipitation KW - metals KW - uranium KW - geochemistry KW - carbonates KW - actinides KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52270627?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Coordination+of+uranyl+ion+coprecipitated+with+calcite+and+aragonite&rft.au=Reeder%2C+R+J%3BNugent%2C+M%3BLamble%2C+G+M%3BTait%2C+C+D%3BMorris%2C+D+E%3BAnonymous&rft.aulast=Reeder&rft.aufirst=R&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; aragonite; calcite; carbonates; coordination; crystal structure; geochemistry; luminescence; metals; precipitation; solubility; uranium; uranyl ion; X-ray data ER - TY - JOUR T1 - High-precision geologic mapping using a total station; a tool for detailed fault mapping AN - 52270405; 2001-010067 AB - The need to assess the potential for seismic surface rupture in areas of Los Alamos National Laboratory motivated development of a unique method of high-precision geologic mapping, which enables recognition of faults with as little as 0.5 to 1 foot of vertical displacement in areas of poor exposure. Our approach involves surveying of points on geologic features in the field, using a Geodimeter Total Station, and detailed computer-aided and field analyses of anomalies in the elevations of surveyed points. Surveying of geologic contacts allows for easy integration of geologic data into a GIS and detailed 3-D analysis of small-scale structures. Data are analyzed in profiles, 3-D surface diagrams, and maps that are constructed with a variety of software packages. Data can be easily viewed and analyzed in the field with use of a laptop computer. Mapping begins with triangulation of the total station from established benchmarks, to establish a location in the State Plane Coordinate System (in feet); temporary benchmarks are then set for moving the station and maintaining an internally consistent data set. Northing (Y), Easting (X), and Elevation (Z) coordinates of each point, as well as horizontal and vertical angles and distances from the instrument, can be viewed in the field and are stored in the Geodimeter. The accuracy factor of the Geodimeter 500 is + or - (3 mm+3 ppm), where ppm = mm/km. The technique has been used to map cooling unit and flow unit boundaries in the 1.2 million-year-old Tshirege Member of the Bandelier Tuff to characterize portions of the Pajarito fault, the southern termination of the Rendija Canyon fault, and the zone of interaction between the two faults. As the Rendija Canyon fault splays to the southwest, vertical offsets along the fault decrease from 120 feet on several large strands, north of the mapped area, to 30 feet of net vertical offset across a 5000 foot-wide fault zone at the southern end of the mapped area. JF - Abstracts with Programs - Geological Society of America AU - Lavine, Alexis AU - Gardner, Jamie N AU - Reneau, Steve L AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 192 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - altitude KW - data processing KW - New Mexico KW - Los Alamos County New Mexico KW - displacements KW - Cenozoic KW - geographic information systems KW - Bandelier Tuff KW - tectonics KW - faults KW - Rendija Canyon Fault KW - precision KW - Quaternary KW - three-dimensional models KW - cartography KW - anomalies KW - Los Alamos National Laboratory KW - computer programs KW - rupture KW - Pleistocene KW - information systems KW - accuracy KW - fault zones KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52270405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=High-precision+geologic+mapping+using+a+total+station%3B+a+tool+for+detailed+fault+mapping&rft.au=Lavine%2C+Alexis%3BGardner%2C+Jamie+N%3BReneau%2C+Steve+L%3BAnonymous&rft.aulast=Lavine&rft.aufirst=Alexis&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=192&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - accuracy; altitude; anomalies; Bandelier Tuff; cartography; Cenozoic; computer programs; data processing; displacements; fault zones; faults; geographic information systems; information systems; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; Pleistocene; precision; Quaternary; Rendija Canyon Fault; rupture; tectonics; three-dimensional models; United States ER - TY - JOUR T1 - Geologic time, uncertainty, and public policy; pitfalls for citizen scientists AN - 52265717; 2001-015111 AB - Long time scales and large uncertainties inherent in the study of geologic phenomena make validation of claims both about evolution of life on earth and about evolution of materials like spent nuclear fuel/high-level radioactive waste in the distant future difficult. Tactics of extremists on both issues provide cautionary notes for scientists engaging in debate over school curricula and repository siting. Creationists and opponents of geologic disposal use similar approaches, exaggerating lack of certainty about phenomena validated by accumulating many, commonly indirect observations. Other tactics used in common exaggerate uncertainty about scientific objectivity. Some of these common tactics include: 1) Demands for "absolute" or complete proof, 2) Repetition of refuted arguments, as if they were not refuted, 3) Presentation of non-relevant data as relevant, 4) Profuse citation of documentation without distinguishing between qualified and unqualified sources, 5) Attacks on the opponent's case without a testable or credible alternative, 6) Distortion or caricaturing of opposing arguments, 7) Attacks on opponents' credibility, 8) Appeal to emotion rather than reason. Even scientists with relevant credentials have occasionally engaged in tactics in the repository debate they might object to in discussion of evolution. Unfortunately, both sides have engaged in some of these tactics. The risk for the geologists comes from presuming too easily that geologic training confers comprehensive expertise on complex, multi-disciplinary subjects. In both examples compared here, the result tends to be polarization of arguments, and loss of opportunity to discuss serious and relevant issues of values in public policy and scientific arenas. The parallel is significant because the Creation/Evolution debate continues to affect policy, despite a century of nearly universal scientific consensus. There is far less likelihood of achieving such uniformity of viewpoint on the acceptability of geologic disposal at any site. Opponents can be effective in using any lack of consensus to delay solution of the problem of disposal of existing wastes. These delays will increase the cost to taxpayers, at the expense of risk mitigation in other areas. JF - Abstracts with Programs - Geological Society of America AU - Boak, Jeremy M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 231 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - time scales KW - high-level waste KW - site exploration KW - public policy KW - biologic evolution KW - waste disposal KW - radioactive waste KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52265717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Geologic+time%2C+uncertainty%2C+and+public+policy%3B+pitfalls+for+citizen+scientists&rft.au=Boak%2C+Jeremy+M%3BAnonymous&rft.aulast=Boak&rft.aufirst=Jeremy&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biologic evolution; high-level waste; public policy; radioactive waste; site exploration; time scales; waste disposal ER - TY - GEN T1 - Geologic map of the Oasis Valley Basin and vicinity, Nye County, Nevada AN - 52261279; 2001-017310 JF - Open-File Report - U. S. Geological Survey AU - Fridrich, C J AU - Minor, S A AU - Ryder, P L AU - Slate, J L AU - Warren, R G AU - Hildenbrand, T G AU - Sawyer, D A AU - Orkild, P P Y1 - 1999 PY - 1999 DA - 1999 SP - 43 EP - 43, 2 sheets PB - U. S. Geological Survey, Reston, VA KW - Type: colored geologic maps KW - United States KW - hydrology KW - bedrock KW - tectonic elements KW - volcanic rocks KW - igneous rocks KW - surficial geology KW - geologic maps KW - deformation KW - Oasis Valley KW - Nye County Nevada KW - areal geology KW - Cenozoic KW - calderas KW - Tertiary KW - volcanic features KW - sedimentary rocks KW - maps KW - tectonics KW - discharge KW - USGS KW - Nevada KW - 14:Geologic maps UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52261279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Geologic+map+of+the+Oasis+Valley+Basin+and+vicinity%2C+Nye+County%2C+Nevada&rft.au=Fridrich%2C+C+J%3BMinor%2C+S+A%3BRyder%2C+P+L%3BSlate%2C+J+L%3BWarren%2C+R+G%3BHildenbrand%2C+T+G%3BSawyer%2C+D+A%3BOrkild%2C+P+P&rft.aulast=Fridrich&rft.aufirst=C&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 35 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG ER - TY - JOUR T1 - Separation of Baja California from North America; new constraints on timing and total displacement AN - 52260921; 2001-019166 AB - We correlate a series of late Miocene pyroclastic flow deposits from Coastal Sonora and Isla Tiburon to Baja California to construct a set of geological tie points. Offset isopach and facies trends of the Tuff of San Felipe, a distinctive, regionally extensive welded ignimbrite, indicate 310 to 325 km of right lateral strike-slip displacement since 12.5 Ma. Correlation of a sequence of younger ignimbrites from the Puertecitos Volcanic Province, Baja California, and the west coast of Isla Tiburon, Sonora, indicate that the majority of strike-slip in the Gulf, 265 to 275 km, has occurred since 6.5Ma. Marine deposits intercalated with volcanic flows that are exposed on Isla Tiburon have been cited as evidence for a "Proto-gulf" prior to 11 Ma. Our expanded and revised geologic mapping of Isla Tiburon indicates that the marine rocks postdate the 6.5 Ma pyroclastic flows, and are thus similar in age to the earliest marine deposits known from elsewhere in the northern gulf and the Salton Trough. Our measure of total right-lateral displacement across the Gulf of California agrees with previously reported, pre-15 Ma geological ties. However, our results from correlative, youthful volcanic deposits also constrain the slip history in the gulf. We find that the majority of Pacific-North America plate motion has been accommodated in the gulf since 6.5 Ma. Prior transcurrent motion between the Pacific and North American plates must have been accommodated either west of Baja California, or within the southern Basin and Range province of Sonora. These data provide independent constraints on the development of the Pacific-North America plate margin through northwestern Mexico, which may require reconsideration of geologic reconstructions of the San Andreas fault system in southern California. JF - Abstracts with Programs - Geological Society of America AU - Oskin, Michael AU - Stock, Joann AU - Lewis, Claudia AU - Martin-Barajas, Arturo AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 294 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Sonora Mexico KW - volcanic rocks KW - Northeast Pacific KW - Basin and Range Province KW - right-lateral faults KW - lateral faults KW - igneous rocks KW - strike-slip faults KW - displacements KW - Gulf of California KW - Cenozoic KW - California KW - Baja California KW - Isla Tiburon KW - pyroclastic flows KW - Pacific Plate KW - faults KW - East Pacific KW - North America KW - Puertecitos volcanic province KW - San Felipe Tuff KW - ignimbrite KW - North American Plate KW - Miocene KW - Salton Trough KW - pyroclastics KW - lithofacies KW - Tertiary KW - plate tectonics KW - Mexico KW - Southern California KW - North Pacific KW - San Andreas Fault KW - Neogene KW - Pacific Ocean KW - upper Miocene KW - reconstruction KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52260921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Separation+of+Baja+California+from+North+America%3B+new+constraints+on+timing+and+total+displacement&rft.au=Oskin%2C+Michael%3BStock%2C+Joann%3BLewis%2C+Claudia%3BMartin-Barajas%2C+Arturo%3BAnonymous&rft.aulast=Oskin&rft.aufirst=Michael&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Baja California; Basin and Range Province; California; Cenozoic; displacements; East Pacific; faults; Gulf of California; igneous rocks; ignimbrite; Isla Tiburon; lateral faults; lithofacies; Mexico; Miocene; Neogene; North America; North American Plate; North Pacific; Northeast Pacific; Pacific Ocean; Pacific Plate; plate tectonics; Puertecitos volcanic province; pyroclastic flows; pyroclastics; reconstruction; right-lateral faults; Salton Trough; San Andreas Fault; San Felipe Tuff; Sonora Mexico; Southern California; strike-slip faults; Tertiary; United States; upper Miocene; volcanic rocks ER - TY - JOUR T1 - An interdisciplinary approach to the study and characterization of fossilized microorganisms AN - 52252659; 2001-023964 AB - Identification of potential fossilized microorganisms from Mars will require an interdisciplinary approach combining a variety of methods. To this end, we are developing microfossil-specific applications of atomic-force microscopy (AFM), a non-destructive, high-resolution imaging technique that has not been applied previously to microfossils. As a systematic case study, three different types of samples were analyzed: fresh Calothrix dried onto glass slides, approximately 100-year-old silica sinters, and approximately 3 million-year-old silica sinters. The sinters were collected from deposits around hot springs environments where Calothrix normally thrive. As a first step to analysis, an epifluorescence microscope located in the Life Sciences Division of LANL was used to locate probable areas of fossilized microorganisms. Photographs were taken of the sample surfaces using several excitation wavelengths. These photographs served as maps for the relocating of sample areas when analyzed by AFM and scanning electron microscopy (SEM) in the Department of Geology at Kent State University. SEM and AFM analysis showed a progression of mineralization over the time periods analyzed: fresh Calothrix strands (no mineralization) had diameters of approximately 3 microns, the 100-year-old strands had a diameter of approximately 5 microns, and the 3 million-year-old strands were close to 20 microns in diameter. The surfaces of the 100-year-old strands were inconsistently covered with rough crystalline forms. The 3 million-year-old strands were covered by dense needle- or plate-like crystals protruding from the surface. Due to the increasingly rough surfaces of the older samples, AFM imaging was very difficult; however, a variety of surfaces were successfully imaged and are currently being interpreted. Our ability to image the samples at high resolution by AFM demonstrates that this technique should prove useful, especially when applied in a systematic fashion, integrated with a variety of microscopic and analytical approaches. JF - Abstracts with Programs - Geological Society of America AU - Forsythe, Jennifer H AU - Burde, Stefan AU - Maurice, Patricia A AU - Hersman, Larry E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 378 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - methods KW - characterization KW - astrobiology KW - Mars KW - fossilization KW - Calothrix KW - terrestrial planets KW - case studies KW - planets KW - atomic force microscopy data KW - identification KW - SEM data KW - microorganisms KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52252659?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=An+interdisciplinary+approach+to+the+study+and+characterization+of+fossilized+microorganisms&rft.au=Forsythe%2C+Jennifer+H%3BBurde%2C+Stefan%3BMaurice%2C+Patricia+A%3BHersman%2C+Larry+E%3BAnonymous&rft.aulast=Forsythe&rft.aufirst=Jennifer&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=378&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - astrobiology; atomic force microscopy data; Calothrix; case studies; characterization; fossilization; identification; Mars; methods; microorganisms; planets; SEM data; terrestrial planets ER - TY - JOUR T1 - Dissecting sedimentary provenance; a comprehensive analysis of marine sediments of the Amazon River system AN - 52252631; 2001-023946 AB - The Amazon River system is among the largest in the world, and the dominant source of clastic material to the Atlantic Ocean. In an in-depth provenance analysis of Holocene and Pleistocene sediments from the Amazon continental shelf and deep-sea fan, we compared information available from muds and sands, bulk compositions and detrital components, and isotopic and geochemical compositions; and interpreted the results within the framework of current understanding about Amazon River provenance from stream-load characteristics and mineralogic compositions. Both Nd model ages and Pb isotopic compositions for bulk samples of mud and sand are consistent with a source that is dominated by Andean rocks, with a minor input of Nd and Pb from the Precambrian craton. By comparison, Pb isotopic compositions indicate that between 7 and 20% of analyzed detrital feldspar grains may have been derived from the Precambrian craton, and both Nd and Pb isotopic compositions of grain-size separates of sands indicate a minor but important ancient detrital component in the sands. Of 94 (super 40) Ar/ (super 39) Ar ages collected on single feldspar grains, 80% were Triassic or younger, indicating probable derivation from the Andes; 6% were Precambrian. Ar ages for other accessory minerals were also Phanerozoic, consistent with a highlands source. Amazon sands are quartz-rich, and grain morphologies suggest that up to half of the quartz may be derived from the Precambrian craton. If this is so, then analysis of bulk quartz sands and of more labile minerals may not develop a complete picture of Amazon River provenance. Although sands constitute only approximately 10% of Amazon River sediment, this represents a portion of the sedimentary record that is often used to develop tectonic models for entire basins. Thus, the recognition that mineralogic compositions and geochemistry can provide entirely disparate views of provenance is significant when using sedimentary compositions to interpret the tectonics and paleogeographies of ancient sedimentary basins. JF - Abstracts with Programs - Geological Society of America AU - McDaniel, Diane Kay AU - Hemming, Sidney R AU - McLennan, Scott M AU - Hanson, Gilbert N AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 375 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - silicates KW - stream transport KW - isotopes KW - sedimentary basins KW - lead KW - stable isotopes KW - Cenozoic KW - marine sediments KW - mud KW - mineral composition KW - Triassic KW - sediments KW - composition KW - basins KW - framework silicates KW - tectonics KW - rare earths KW - geochemistry KW - bedload KW - sand KW - Andes KW - Quaternary KW - Precambrian KW - clastic sediments KW - isotope ratios KW - paleogeography KW - Mesozoic KW - Nd-144/Nd-143 KW - provenance KW - South America KW - metals KW - Amazon River KW - Pleistocene KW - continental shelf KW - neodymium KW - feldspar group KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52252631?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Dissecting+sedimentary+provenance%3B+a+comprehensive+analysis+of+marine+sediments+of+the+Amazon+River+system&rft.au=McDaniel%2C+Diane+Kay%3BHemming%2C+Sidney+R%3BMcLennan%2C+Scott+M%3BHanson%2C+Gilbert+N%3BAnonymous&rft.aulast=McDaniel&rft.aufirst=Diane&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=375&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Amazon River; Andes; basins; bedload; Cenozoic; clastic sediments; composition; continental shelf; feldspar group; framework silicates; geochemistry; isotope ratios; isotopes; lead; marine sediments; Mesozoic; metals; mineral composition; mud; Nd-144/Nd-143; neodymium; paleogeography; Pleistocene; Precambrian; provenance; Quaternary; rare earths; sand; sedimentary basins; sediments; silicates; South America; stable isotopes; stream transport; tectonics; Triassic ER - TY - JOUR T1 - Performance of high efficiency CdZnTe gamma-ray detectors for planetary missions AN - 52244759; 2001-030532 AB - Results from large-volume CdZnTe semiconductor detectors for ambient-temperature gamma-ray spectroscopy are presented. Our new multi-element-array design is a good low-mass and low-power candidate for elemental mapping on future planetary missions. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Moss, C E AU - Ianakiev, K D AU - Prettyman, T H AU - Reedy, R C AU - Smith, M K AU - Sweet, M R AU - Valentine, J D AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1478 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - zinc KW - programs KW - experimental studies KW - chemical analysis KW - tellurium KW - gamma-ray spectroscopy KW - laboratory studies KW - detection KW - metals KW - cadmium KW - planetology KW - spectroscopy KW - instruments KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52244759?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Performance+of+high+efficiency+CdZnTe+gamma-ray+detectors+for+planetary+missions&rft.au=Moss%2C+C+E%3BIanakiev%2C+K+D%3BPrettyman%2C+T+H%3BReedy%2C+R+C%3BSmith%2C+M+K%3BSweet%2C+M+R%3BValentine%2C+J+D%3BAnonymous&rft.aulast=Moss&rft.aufirst=C&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cadmium; chemical analysis; design; detection; experimental studies; gamma-ray spectroscopy; instruments; laboratory studies; metals; planetology; programs; spectroscopy; tellurium; zinc ER - TY - JOUR T1 - Recharge sources and dynamics of He-contaminated springs at LANL's TA-16 AN - 52244734; 2001-027701 AB - Three springs at Los Alamos National Laboratory's (LANL) Technical Area (TA) 16 are contaminated with high explosives (HE) and inorganic constituents, particularly barium and nitrate. Due to the toxicity of HE, determining sources of water and contaminants in these springs is important. Stable isotope and tritium data suggest that the majority of water mass in the springs is derived from young local recharge. On a d (super 18) O vs. dD plot the springs fall near the local meteoric water line. In addition, tritium levels in the springs are elevated (>30 TU) due to bomb-pulse tritium. Changes in spring flow vs. time and contaminant concentrations vs. time suggest multiple recharge sources for springs and heterogeneous flow paths within the vadose zone. Spring flow responds to precipitation events on three time frames. These may represent run-on, interflow, and diffuse mesatop recharge. Several constituents show initial decreases in concentration followed by a concentration increase with increased flow. For example in one spring, Ba ranges from approximately 280 ppb during low-flow conditions, decreases to approximately 200 ppb, then increases to 240 ppb at high flow conditions. This behavior may represent initial dilution of the contaminant signature, followed by infiltration into contaminated vadose zone during higher flow conditions. Other constituents (e.g. Fe, Al) show a continuous increase in concentration with flow. This behavior may reflect these elements' occurrence in clays, which may be more homogeneously distributed through the vadose zone than are the contaminated media. These data suggest that multiple contaminated pathways are being intersected as vadose flow increases. A KBr tracer was deployed at an HE outfall during April 1997. Br breakthrough in a spring was observed approximately 1000 ft horizontally and approximately 110 ft vertically within 5 months. The Br breakthrough was heterogeneous and occurred over approximately 60 days. This suggests rapid, fracture-dominated transport through the vadose zone. Understanding the complex flow system that recharges the TA-16 springs will enable efficient remedies to be selected for the HE-contaminated sites. Such understanding is important if monitored natural attenuation is selected as part of the remedial action at the site. JF - Abstracts with Programs - Geological Society of America AU - Hickmott, Donald D AU - Newman, Brent AU - Tardiff, Mark AU - Kidman, Lynn AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 396 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - oxygen KW - isotopes KW - unsaturated zone KW - tritium KW - New Mexico KW - Los Alamos County New Mexico KW - stable isotopes KW - iron KW - remediation KW - radioactive isotopes KW - explosives KW - toxicity KW - barium KW - noble gases KW - aluminum KW - springs KW - helium KW - alkaline earth metals KW - monitoring KW - isotope ratios KW - pollution KW - nitrates KW - O-18/O-16 KW - Los Alamos National Laboratory KW - inorganic materials KW - D/H KW - metals KW - infiltration KW - hydrogen KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52244734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Recharge+sources+and+dynamics+of+He-contaminated+springs+at+LANL%27s+TA-16&rft.au=Hickmott%2C+Donald+D%3BNewman%2C+Brent%3BTardiff%2C+Mark%3BKidman%2C+Lynn%3BAnonymous&rft.aulast=Hickmott&rft.aufirst=Donald&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=396&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aluminum; barium; D/H; explosives; helium; hydrogen; infiltration; inorganic materials; iron; isotope ratios; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; metals; monitoring; New Mexico; nitrates; noble gases; O-18/O-16; oxygen; pollution; radioactive isotopes; remediation; springs; stable isotopes; toxicity; tritium; United States; unsaturated zone ER - TY - JOUR T1 - Using Quaternary dating methods, stratigraphy and patterns of stream incision to constrain models of post-orogenic rock uplift; preliminary results from the Ebro Basin, Spain AN - 52242758; 2001-027848 AB - In the central Ebro basin (Spain) and adjacent Pyrenees, we are testing models of post-tectonic rock uplift using patterns of stream incision constrained by Quaternary stratigraphic and dating methods. To reveal spatial distribution and rates of incision, we correlate terrace remnants along principal rivers normal to the Pyrenean axis, determine numeric ages, and reconstruct paleo-longitudinal stream profiles for comparison to modern profiles. The large separation between terraces in this area, and their great longitudinal and lateral extent, facilitate mapping and correlation of terrace remnants and measurements of terrace deformation. Because ages are critical for calculating incision rates, we use various Quaternary chronometric methods including radiocarbon, luminescence, and cosmogenic nuclide profile dating, and magnetostratigraphy. We also use time-related trends in soil development on surfaces as a primary means of correlating terrace remnants, since numeric dating techniques are expensive and dateable material relatively rare. We recently completed field descriptions and sampling of a spectacular terrace sequence along the lower Rio Cinca. Broad terrace treads are overlain by <10 m of well-sorted, stratified sandy gravel, suggesting a predominance of strath terraces and therefore age-equivalent terrace treads and deposits. Terrace soils show strong time-related trends related to pedogenic accumulation of calcium carbonate, including carbonate mass, degree of carbonate cementation, thickness and strength of horizonation, and total profile thickness. Soils are clearly invaluable for maximizing age control and developing regional correlations among terrace sequences. Based on general comparisons with soils formed in similar semi-arid environments in the western U. S., we assign tentative age estimates (possibly correlating with glacial outwash events) as follows: T4, 50-80 ka; T5, 150-250 ka; and T8, 600-800 ka. Strath heights of 35-40 m (T4), 55-60 m (T5), and 115-120 m (T8) above the modern channel suggest preliminary incision rates of 0.1-0.8 mm/yr. Ultimately, this project will provide a precise Quaternary chronology, a basin-wide correlation of river terraces, and a model of post-tectonic rock uplift that will prove essential to Quaternary studies on the Iberian peninsula and elsewhere. JF - Abstracts with Programs - Geological Society of America AU - Lewis, C J AU - Mcdonald, E AU - Sancho Marcen, C AU - Pena-Monne, J L AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 422 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - Spain KW - outwash KW - uplifts KW - Europe KW - magnetostratigraphy KW - Iberian Peninsula KW - terraces KW - gravel KW - Southern Europe KW - Cenozoic KW - spatial distribution KW - sediments KW - thickness KW - sorting KW - horizons KW - soils KW - patterns KW - Quaternary KW - clastic sediments KW - cartography KW - strength KW - Ebro Basin KW - cementation KW - correlation KW - Rio Cinca KW - deformation KW - models KW - diagenesis KW - fluvial features KW - testing KW - Pyrenees KW - incised valleys KW - 24:Quaternary geology KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52242758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Using+Quaternary+dating+methods%2C+stratigraphy+and+patterns+of+stream+incision+to+constrain+models+of+post-orogenic+rock+uplift%3B+preliminary+results+from+the+Ebro+Basin%2C+Spain&rft.au=Lewis%2C+C+J%3BMcdonald%2C+E%3BSancho+Marcen%2C+C%3BPena-Monne%2C+J+L%3BAnonymous&rft.aulast=Lewis&rft.aufirst=C&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=422&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - cartography; cementation; Cenozoic; clastic sediments; correlation; deformation; diagenesis; Ebro Basin; Europe; fluvial features; gravel; horizons; Iberian Peninsula; incised valleys; magnetostratigraphy; models; outwash; patterns; Pyrenees; Quaternary; Rio Cinca; sediments; soils; sorting; Southern Europe; Spain; spatial distribution; strength; terraces; testing; thickness; uplifts ER - TY - JOUR T1 - Fluorescent staining of microfossils using biological stains AN - 52240734; 2001-030462 AB - Known terrestrial microfossils were labeled with the fluorescent nucleic acid stain propidium iodide. The fossil microorganisms exhibited bright labeling with this dye. The approach may provide unequivocal verification of the presence of microfossils in martian samples. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Burde, S AU - Hersman, L E AU - Marrone, B L AU - Farmer, J D AU - McKay, D S AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1811 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - cyanobacteria KW - experimental studies KW - chemical analysis KW - biochemistry KW - astrobiology KW - techniques KW - Calothrix KW - laboratory studies KW - sample preparation KW - detection KW - staining KW - fluorescence KW - microscope methods KW - identification KW - DNA KW - microfossils KW - microorganisms KW - 09:Paleobotany KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52240734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Fluorescent+staining+of+microfossils+using+biological+stains&rft.au=Burde%2C+S%3BHersman%2C+L+E%3BMarrone%2C+B+L%3BFarmer%2C+J+D%3BMcKay%2C+D+S%3BAnonymous&rft.aulast=Burde&rft.aufirst=S&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - astrobiology; biochemistry; Calothrix; chemical analysis; cyanobacteria; detection; DNA; experimental studies; fluorescence; identification; laboratory studies; microfossils; microorganisms; microscope methods; sample preparation; staining; techniques ER - TY - JOUR T1 - Potential controls on a late Holocene (Neoglacial) glacial advance in the southern Sangre de Cristo Mountains, New Mexico AN - 52237082; 2001-035690 AB - The southern Sangre de Cristo Mountains of New Mexico contain evidence of a late Holocene glacial event including a distinctive set of moraines in the Lake Katherine cirque of the Winsor Creek drainage and a younger rock glacier. Alpine bogs below the cirque in the Stewart Lake area contain a potentially high-resolution record of climatic change from the Neoglacial to the modern with ages constrained by radiocarbon dates. Conversely, there appears to be no evidence of a contemporaneous full glaciation in the relatively proximal San Juan Range - periglacial features only occur in this part of southern Colorado. This seeming paradox could be explained by one of two scenarios: (1) later climatic events (e.g. Little Ice Age) could have been more intense in the San Juans resulting in a burial of neoglacial-age features in the region, or (2) the San Juan Range did not experience full glaciation during the neoglacial due to higher summer temperatures induced by the high topography of central Colorado. We prefer the second scenario as it controls a key element of alpine glacier formation - summer ablation. Modern high-elevation temperatures were measured in Colorado and New Mexico during the ROMPEX (Rocky Mountain Peaks) experiment and showed a daytime low pressure exists over the high mountain terrain. The differential heating between lower-lying plains and the intermountain region results in higher summer surface-air temperatures in the central Colorado highlands than along the southern margin in New Mexico at the same elevations. The presence of this phenomenon during the late Holocene may have led to different climatic responses between the San Juan and the southern Sangre de Cristo Mountains. A summer temperature threshold appears to have existed between these two ranges, allowing small glaciers to grow on the periphery and not in the central portion of the Colorado Plateau. JF - Abstracts with Programs - Geological Society of America AU - Armour, Jake AU - Fawcett, Peter J AU - Bossert, James E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 442 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - ablation KW - glaciation KW - Sangre de Cristo Mountains KW - New Mexico KW - Holocene KW - climate change KW - Cenozoic KW - controls KW - paleotemperature KW - moraines KW - cirques KW - North America KW - high-resolution methods KW - Quaternary KW - Colorado Plateau KW - Stewart Lake KW - glaciers KW - U. S. Rocky Mountains KW - San Juan Mountains KW - glacial features KW - measurement KW - Neoglacial KW - Lake Katherine KW - Winsor Creek KW - upper Holocene KW - Colorado KW - Rocky Mountains KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52237082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Potential+controls+on+a+late+Holocene+%28Neoglacial%29+glacial+advance+in+the+southern+Sangre+de+Cristo+Mountains%2C+New+Mexico&rft.au=Armour%2C+Jake%3BFawcett%2C+Peter+J%3BBossert%2C+James+E%3BAnonymous&rft.aulast=Armour&rft.aufirst=Jake&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=442&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - ablation; Cenozoic; cirques; climate change; Colorado; Colorado Plateau; controls; glacial features; glaciation; glaciers; high-resolution methods; Holocene; Lake Katherine; measurement; moraines; Neoglacial; New Mexico; North America; paleotemperature; Quaternary; Rocky Mountains; San Juan Mountains; Sangre de Cristo Mountains; Stewart Lake; U. S. Rocky Mountains; United States; upper Holocene; Winsor Creek ER - TY - JOUR T1 - Pyroclastic relict textures in the Triassic Rio Fontanaz Tuff; similarities of vessiculation and fragmentation with the Quaternary Campanian Ignimbrite AN - 52236100; 2001-035882 JF - Acta Vulcanologica AU - Obenholzner, J H AU - Heiken, G Y1 - 1999 PY - 1999 DA - 1999 SP - 283 EP - 292 PB - Giardini Editore, Pisa VL - 11 IS - 2 SN - 1121-9114, 1121-9114 KW - fragmentation KW - volcanic rocks KW - Quaternary KW - textures KW - ignimbrite KW - igneous rocks KW - grain size KW - Europe KW - vessiculation KW - Mesozoic KW - Italy KW - Friuli-Venezia Giulia Italy KW - Southern Europe KW - Cenozoic KW - pyroclastics KW - Triassic KW - Campanian Ignimbrite KW - relict materials KW - tuff KW - SEM data KW - Rio Fontanaz Tuff KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52236100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Vulcanologica&rft.atitle=Pyroclastic+relict+textures+in+the+Triassic+Rio+Fontanaz+Tuff%3B+similarities+of+vessiculation+and+fragmentation+with+the+Quaternary+Campanian+Ignimbrite&rft.au=Obenholzner%2C+J+H%3BHeiken%2C+G&rft.aulast=Obenholzner&rft.aufirst=J&rft.date=1999-01-01&rft.volume=11&rft.issue=2&rft.spage=283&rft.isbn=&rft.btitle=&rft.title=Acta+Vulcanologica&rft.issn=11219114&rft_id=info:doi/ L2 - http://gnv.ingv.it/pubblicazioni/acta_vulcanologica/av_index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by CNR, Comitato Scienze Geologiche e Minerarie, Rome, Italy N1 - Date revised - 2001-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Campanian Ignimbrite; Cenozoic; Europe; fragmentation; Friuli-Venezia Giulia Italy; grain size; igneous rocks; ignimbrite; Italy; Mesozoic; pyroclastics; Quaternary; relict materials; Rio Fontanaz Tuff; SEM data; Southern Europe; textures; Triassic; tuff; vessiculation; volcanic rocks ER - TY - JOUR T1 - From laboratory to field; scaling of matrix diffusion and sorption processes in fractured volcanic rocks AN - 52235942; 2001-035737 AB - Over the past several years, we have conducted numerous laboratory experiments and have been directly involved with three major field experiments in which solute transport processes were studied in saturated, fractured volcanic rocks at the Nevada Test Site (NTS). Two of the objectives of this work were (1) determining matrix diffusion mass transfer parameters as a function of rock lithology and scale and (2) determining the applicability of using laboratory-derived sorption parameters to predict field-scale transport of sorbing solutes. Matrix diffusion and sorption can significantly retard the movement of solutes through fractured rock groundwater systems, and thus these processes are very important in assessing potential radionuclide migration at the NTS. We conducted four different types of experiments to obtain estimates of transport parameters over a wide range of length scales: (1) batch sorption tests to determine lithium sorption isotherms to different rock types, (2) diffusion cell tests to directly measure matrix diffusion coefficients in nonfractured rock wafers, (3) tracer tests in fractured cores to determine matrix diffusion and sorption parameters under flowing conditions at up to 0.3-m scales in single fractures, and (4) field tracer tests to determine matrix diffusion and sorption parameters at up to 100-m length scales and over much longer time scales than in the lab. The rock samples used in laboratory tests were derived from cores taken from boreholes used in field testing. We generally observed greater apparent sorption of the lithium ion in field experiments than in laboratory experiments (with the same rocks), which suggests that laboratory-derived sorption parameters provide conservative estimates of field-scale transport behavior when used in predictive modeling. In contrast, we deduced smaller matrix diffusion mass transfer coefficients as time and distance scales increased, suggesting that matrix diffusion parameters derived from shorter time-scale tests would be nonconservative when predicting radionuclide migration over time scales of many years. JF - Abstracts with Programs - Geological Society of America AU - Reimus, Paul W AU - Callahan, Timothy J AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 450 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - processes KW - fractured materials KW - migration KW - sorption KW - experimental studies KW - diffusion KW - volcanic rocks KW - isotopes KW - igneous rocks KW - matrix KW - cores KW - Nevada Test Site KW - fractures KW - saturated zone KW - radioactive isotopes KW - tracers KW - testing KW - Nevada KW - field studies KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52235942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=From+laboratory+to+field%3B+scaling+of+matrix+diffusion+and+sorption+processes+in+fractured+volcanic+rocks&rft.au=Reimus%2C+Paul+W%3BCallahan%2C+Timothy+J%3BAnonymous&rft.aulast=Reimus&rft.aufirst=Paul&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=450&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - cores; diffusion; experimental studies; field studies; fractured materials; fractures; igneous rocks; isotopes; matrix; migration; Nevada; Nevada Test Site; processes; radioactive isotopes; saturated zone; sorption; testing; tracers; United States; volcanic rocks ER - TY - JOUR T1 - The Pajarito Plateau of the Espanola Basin, Rio Grande Rift, north central New Mexico; a river ran through it AN - 52235883; 2001-037343 AB - Buried beneath the Bandelier Tuff of the Pajarito Plateau is a partial record of the interaction of tectonic, volcanic, depositional, and erosional processes associated with the development of the Espanola Basin of the Rio Grande rift in north central New Mexico. The paleohydrography of the developing rift system may have a major impact on the present-day geohydrology. This geohydrology provides the framework for models of possible contaminant migration from the Los Alamos National Laboratory. Key elements to the geohydrologic model developed for the Pajarito Plateau are spatial distribution of intercalated mafic lava flows within the Miocene Santa Fe Group sedimentary deposits and ancestral river gravels, which can constrain or enhance groundwater flow, respectively. Thick sedimentary deposits and erosional features below the Pajarito Plateau resulted from dynamic ancestral rivers and distinct paleodrainage systems related to rifting. The data consist of subsurface stratigraphic information, outcrops along deep canyons cut into the plateau, and published results of local and regional studies. A 3-dimensional geologic model of the Pajarito Plateau was developed using new results from (super 40) Ar/ (super 39) Ar dating, geochemical, and petrographic studies of the basalts and other hydrostratigraphic units. Volcanism was episodic (11.7-13.1, 8.4-10.9, and 2.3-2.8 Ma) and contemporaneous with similar activities along the adjacent western rift margin. Based on the intercalated basalts, the upper part of the Santa Fe Group sedimentary deposits beneath the Pajarito Plateau are late Miocene (8-11 Ma) in age. JF - Abstracts with Programs - Geological Society of America AU - WoldeGabriel, Giday AU - Warren, Richard G AU - Cole, G AU - Broxton, David AU - Laughlin, A William AU - Heizler, Matthew AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 348 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - erosion KW - Pajarito Plateau KW - New Mexico KW - Los Alamos County New Mexico KW - Rio Grande Rift KW - Cenozoic KW - Santa Fe Group KW - Bandelier Tuff KW - dates KW - volcanism KW - absolute age KW - outcrops KW - tectonics KW - Espanola Basin KW - processes KW - Ar/Ar KW - North America KW - migration KW - Quaternary KW - lava flows KW - three-dimensional models KW - paleohydrology KW - pollution KW - Los Alamos National Laboratory KW - Miocene KW - models KW - Tertiary KW - deposition KW - Neogene KW - Pleistocene KW - upper Miocene KW - north-central New Mexico KW - 12:Stratigraphy KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52235883?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+Pajarito+Plateau+of+the+Espanola+Basin%2C+Rio+Grande+Rift%2C+north+central+New+Mexico%3B+a+river+ran+through+it&rft.au=WoldeGabriel%2C+Giday%3BWarren%2C+Richard+G%3BCole%2C+G%3BBroxton%2C+David%3BLaughlin%2C+A+William%3BHeizler%2C+Matthew%3BAnonymous&rft.aulast=WoldeGabriel&rft.aufirst=Giday&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=348&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absolute age; Ar/Ar; Bandelier Tuff; Cenozoic; dates; deposition; erosion; Espanola Basin; lava flows; Los Alamos County New Mexico; Los Alamos National Laboratory; migration; Miocene; models; Neogene; New Mexico; North America; north-central New Mexico; outcrops; Pajarito Plateau; paleohydrology; Pleistocene; pollution; processes; Quaternary; Rio Grande Rift; Santa Fe Group; tectonics; Tertiary; three-dimensional models; United States; upper Miocene; volcanism ER - TY - JOUR T1 - Vesiculation and fragmentation of magmas; what's missing? AN - 52234655; 2001-035624 AB - Explosive eruption processes occurring within the upper 2 kilometers of the Earth's crust are of interest to researchers on volcanic processes, officials concerned with magmatic and volcanic hazards, geothermal developers, and mining companies. Key processes of concern for all these groups are magma vesiculation and fragmentation, which we have never observed in a volcano-all of our understanding is based on inference from a variety of data sets: 1. The seismologist observes long-period seismic events below and within volcanic edifices. Impedance contrasts between bubbly and pure liquids may be an indicator of the depth and degree of vesiculation. 2. Theoretical studies, beginning in the 1930's and continuing today, provide insight as to what should be occurring within the conduit during an explosive eruption. 3. Experiments are complementing theoretical work with new information on vesiculation and fragmentation under controlled conditions. 4. Exposed and drilled dike systems give us a limiting framework for explosive activity, but the gas-rich magma has long since passed, leaving few clues as to the fragmentation process. 5. Gas budgets, determined by in-situ and remote observations give us more background information on when shallow conduits and lava domes may fragment explosively. 6. Tephra analysts study products from all types of volcanic eruptions and produce criteria for eruption processes-however, they have never seen the actual processes. 7. Studies of lithic clasts in eruption products are another useful approach for interpreting depths of explosive fragmentation. Magma vesiculation and fragmentation are processes viewed differently by each of the investigators described above, who, in the future, must work together on a variety of explosive eruptions to gain insight as to what is really happening below the surface. This approach follows the philosophy held by Wolf Elston, whose work reflects his multi-disciplinary approach to many problems in volcanology. JF - Abstracts with Programs - Geological Society of America AU - Heiken, Grant AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 262 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - vesicular texture KW - processes KW - experimental studies KW - fragmentation KW - volcanic rocks KW - in situ KW - geologic hazards KW - textures KW - igneous rocks KW - explosive eruptions KW - history KW - pyroclastics KW - theoretical studies KW - intrusions KW - dikes KW - magmas KW - volcanoes KW - remote sensing KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52234655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Vesiculation+and+fragmentation+of+magmas%3B+what%27s+missing%3F&rft.au=Heiken%2C+Grant%3BAnonymous&rft.aulast=Heiken&rft.aufirst=Grant&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=262&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - dikes; experimental studies; explosive eruptions; fragmentation; geologic hazards; history; igneous rocks; in situ; intrusions; magmas; processes; pyroclastics; remote sensing; textures; theoretical studies; vesicular texture; volcanic rocks; volcanoes ER - TY - JOUR T1 - An examination of transient flow in a semiarid mesa with high explosives contamination at Los Alamos, New Mexico, USA AN - 52234377; 2001-037365 AB - Transient flow systems were encountered in two boreholes drilled on a semiarid mesa at a high explosives production area at Los Alamos National Laboratory. These systems occurred at depths below about 18 m and flowed for a few days to a few weeks in 1998. One of these systems reactivated in the spring of 1999 and flowed for a few days. High explosives contamination (RDX) was present in the transient flow zones, but not above or below them. We collected a series of hydrologic, geologic, and natural tracer (chloride and stable isotopes) data to examine potential sources of the water and contamination. Volumetric moisture profiles through the transient zones show consistent saturated/near-saturated conditions in densely welded tuff at or near stratigraphic contacts. The transient zones are thin, and saturated hydraulic conductivities in these zones are low (e.g., 10-9 cm/s), which suggests that fractures may be conducting the water. Chloride profiles generally show little variation with depth below the root zone, and downward flux estimates using the chloride mass balance method yield values on the order of 1-3 mm/yr. The stable isotope data (delta (super 18) O and delta D) show distinct bulges of heavy water in the zones where transient flow occurs. The heavy water is the result of evaporation, but the evaporation does not appear to happen at the depths of the transient flow zones. Instead, it appears that the water may be from ponds on the mesa top that previously received high explosives waste. Conceptually, the source of the water and contamination appears to be ponded surface water that is evaporated and periodically percolates into the underlying tuff where it flows laterally upon encountering fractures in more welded (less permeable) tuff units. This type of transient flow appears to be an important mechanism for controlling the distribution of high explosive contamination in the mesa subsurface. JF - Abstracts with Programs - Geological Society of America AU - Newman, Brent D AU - Hickmott, Donald D AU - Gram, Peter AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 352 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - terrestrial environment KW - mesas KW - oxygen KW - isotopes KW - semi-arid environment KW - halogens KW - New Mexico KW - Los Alamos County New Mexico KW - erosion features KW - stable isotopes KW - ground water KW - controls KW - explosives KW - chloride ion KW - movement KW - tracers KW - chlorine KW - isotope ratios KW - pollution KW - O-18/O-16 KW - Los Alamos National Laboratory KW - evaporation KW - boreholes KW - D/H KW - hydrogen KW - hydraulic conductivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52234377?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=An+examination+of+transient+flow+in+a+semiarid+mesa+with+high+explosives+contamination+at+Los+Alamos%2C+New+Mexico%2C+USA&rft.au=Newman%2C+Brent+D%3BHickmott%2C+Donald+D%3BGram%2C+Peter%3BAnonymous&rft.aulast=Newman&rft.aufirst=Brent&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=352&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - boreholes; chloride ion; chlorine; controls; D/H; erosion features; evaporation; explosives; ground water; halogens; hydraulic conductivity; hydrogen; isotope ratios; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; mesas; movement; New Mexico; O-18/O-16; oxygen; pollution; semi-arid environment; stable isotopes; terrestrial environment; tracers; United States ER - TY - JOUR T1 - The El Paso Superbolide of October 9, 1997 AN - 52233897; 2001-037529 AB - The October 9, 1997 El Paso superbolide was recorded by satellite systems, seismographs, infrasound arrays and numerous video and still photographers. The terminal disaggregation released nearly equal 2X10 (super 12) J corresponding to a total mass of nearly equal 15 tonnes. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hildebrand, A R AU - Brown, Peter AU - Crawford, D AU - Boslough, M AU - Chael, E AU - Revelle, D AU - Doser, D AU - Tagliaferri, E AU - Rathbun, D AU - Cooke, D AU - Adcock, C T AU - Karner, J AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1525 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - United States KW - El Paso Texas KW - explosions KW - clastic sediments KW - video methods KW - El Paso County Texas KW - bolides KW - Texas KW - seismographs KW - satellite methods KW - Ciudad Juarez Mexico KW - photography KW - meteors KW - meteorites KW - Mexico KW - detection KW - dust KW - classification KW - sediments KW - fireballs KW - El Paso Superbolide KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52233897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+El+Paso+Superbolide+of+October+9%2C+1997&rft.au=Hildebrand%2C+A+R%3BBrown%2C+Peter%3BCrawford%2C+D%3BBoslough%2C+M%3BChael%2C+E%3BRevelle%2C+D%3BDoser%2C+D%3BTagliaferri%2C+E%3BRathbun%2C+D%3BCooke%2C+D%3BAdcock%2C+C+T%3BKarner%2C+J%3BAnonymous&rft.aulast=Hildebrand&rft.aufirst=A&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - bolides; Ciudad Juarez Mexico; classification; clastic sediments; detection; dust; El Paso County Texas; El Paso Superbolide; El Paso Texas; explosions; fireballs; instruments; meteorites; meteors; Mexico; photography; remote sensing; satellite methods; sediments; seismographs; Texas; United States; video methods ER - TY - JOUR T1 - Effects of an aerobic Pseudomonas mendocina var. bacteria on kaolinite dissolution rates AN - 52233798; 2001-037274 JF - Abstracts with Programs - Geological Society of America AU - Vierkorn, Melanie A AU - Maurice, Patricia A AU - Hersman, Larry E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 337 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - silicates KW - experimental studies KW - rates KW - Pseudomonas KW - effects KW - kaolinite KW - solution KW - iron KW - clay minerals KW - aerobic environment KW - Pseudomonas mendocina KW - ferric iron KW - metals KW - standard materials KW - bacteria KW - sheet silicates KW - pH KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52233798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Effects+of+an+aerobic+Pseudomonas+mendocina+var.+bacteria+on+kaolinite+dissolution+rates&rft.au=Vierkorn%2C+Melanie+A%3BMaurice%2C+Patricia+A%3BHersman%2C+Larry+E%3BAnonymous&rft.aulast=Vierkorn&rft.aufirst=Melanie&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aerobic environment; bacteria; clay minerals; effects; experimental studies; ferric iron; iron; kaolinite; metals; pH; Pseudomonas; Pseudomonas mendocina; rates; sheet silicates; silicates; solution; standard materials ER - TY - JOUR T1 - Simulations of expected gamma-ray fluxes from asteroids AN - 52227998; 2001-041605 AB - The fluxes of cosmic-ray-produced gamma rays escaping from an asteroid's surface were calculated for 8 chemical compositions corresponding to particular meteorites of various types. Chemical composition strongly affects the fluxes of gamma rays. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Masarik, J AU - Brueckner, J AU - Reedy, R C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1663 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - irradiation KW - asteroids KW - data processing KW - calibration KW - X-ray spectra KW - NEAR Program KW - meteorites KW - objectives KW - LAHET KW - gamma rays KW - digital simulation KW - gamma-ray spectra KW - theoretical models KW - cosmic rays KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52227998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Simulations+of+expected+gamma-ray+fluxes+from+asteroids&rft.au=Masarik%2C+J%3BBrueckner%2C+J%3BReedy%2C+R+C%3BAnonymous&rft.aulast=Masarik&rft.aufirst=J&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; calibration; cosmic rays; data processing; digital simulation; gamma rays; gamma-ray spectra; irradiation; LAHET; meteorites; NEAR Program; objectives; spectra; theoretical models; X-ray spectra ER - TY - JOUR T1 - Investigating coupled thermal-mechanical-hydrological-chemical processes in the Drift Scale Test, Yucca Mountain, Nevada, USA AN - 52220160; 2001-046707 JF - Proceedings of the ... Congress of the International Society for Rock Mechanics AU - Datta, Robin AU - Blair, Steve AU - Boyle, William AU - Finley, Ray E AU - Peters, Mark AU - Tsang, Yvonne A2 - Vouille, Gerard A2 - Berest, Pierre Y1 - 1999 PY - 1999 DA - 1999 SP - 811 EP - 815 PB - [publisher varies], [location varies] VL - 9 IS - 2 SN - 0074-848X, 0074-848X KW - United States KW - rock masses KW - processes KW - ground-penetrating radar KW - radar methods KW - extensometers KW - Drift Scale Test KW - Nye County Nevada KW - temperature KW - models KW - boreholes KW - testing KW - Yucca Mountain KW - permeability KW - Nevada KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52220160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+...+Congress+of+the+International+Society+for+Rock+Mechanics&rft.atitle=Investigating+coupled+thermal-mechanical-hydrological-chemical+processes+in+the+Drift+Scale+Test%2C+Yucca+Mountain%2C+Nevada%2C+USA&rft.au=Datta%2C+Robin%3BBlair%2C+Steve%3BBoyle%2C+William%3BFinley%2C+Ray+E%3BPeters%2C+Mark%3BTsang%2C+Yvonne&rft.aulast=Datta&rft.aufirst=Robin&rft.date=1999-01-01&rft.volume=9&rft.issue=2&rft.spage=811&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+...+Congress+of+the+International+Society+for+Rock+Mechanics&rft.issn=0074848X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Neuvieme congres international de mecanique de roches--Ninth international congress on rock mechanics--Neunter Internationaler Kongress ueber Felsmechanik N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 2 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - 32ZUA4 N1 - SubjectsTermNotLitGenreText - boreholes; Drift Scale Test; extensometers; ground-penetrating radar; models; Nevada; Nye County Nevada; permeability; processes; radar methods; rock masses; temperature; testing; United States; Yucca Mountain ER - TY - JOUR T1 - Sample preparation and mounting strategies for robotic XRD/XRF analysis AN - 52218807; 2001-046994 AB - Appropriate selection of sample preparation methods, mounting media and methods, and measurement geometry allows robotic X-ray fluorescence and diffraction analysis of soil, eolian, and rock materials. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Vaniman, D AU - Bish, D AU - Chipera, S AU - Sarrazin, P AU - Blake, D AU - Collins, S AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1431 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - CHEMIN instrument KW - robots KW - sample preparation KW - chemical analysis KW - X-ray fluorescence KW - X-ray analysis KW - instruments KW - X-ray diffraction analysis KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52218807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Sample+preparation+and+mounting+strategies+for+robotic+XRD%2FXRF+analysis&rft.au=Vaniman%2C+D%3BBish%2C+D%3BChipera%2C+S%3BSarrazin%2C+P%3BBlake%2C+D%3BCollins%2C+S%3BAnonymous&rft.aulast=Vaniman&rft.aufirst=D&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical analysis; CHEMIN instrument; instruments; robots; sample preparation; X-ray analysis; X-ray diffraction analysis; X-ray fluorescence ER - TY - JOUR T1 - Neutron-capture yields for obtaining elemental abundances from planetary gamma-ray spectra AN - 52218659; 2001-046997 AB - Yields for gamma rays from neutron-capture reactions have been evaluated using new data, compiled, and compared to older compilations. These yields are needed to convert measured planetary gamma-ray fluxes to good elemental abundances and ratios. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Reedy, Robert C AU - Frankle, Stephanie C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1658 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - terrestrial planets KW - planets KW - neutrons KW - gamma rays KW - planetology KW - gamma-ray spectroscopy KW - Mars KW - Mars Observer Program KW - spectroscopy KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52218659?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Neutron-capture+yields+for+obtaining+elemental+abundances+from+planetary+gamma-ray+spectra&rft.au=Reedy%2C+Robert+C%3BFrankle%2C+Stephanie+C%3BAnonymous&rft.aulast=Reedy&rft.aufirst=Robert&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - gamma rays; gamma-ray spectroscopy; instruments; Mars; Mars Observer Program; neutrons; planetology; planets; spectroscopy; terrestrial planets ER - TY - JOUR T1 - Laser induced-plasma ion mass spectrometry for characterization of lunar and planetary surfaces AN - 52218305; 2001-047000 AB - LIMS is being developed to perform isotopic and elemental analysis of lunar and planetary surfaces at standoff distances. It uses an advanced ion mass spectrometer to obtain mass and energy spectra from the ionized plume produced by a laser. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wiens, R C AU - Blacic, J D AU - Cremers, D A AU - Ritzau, S M AU - Nordholt, J E AU - Funsten, H O AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1424 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - high-resolution methods KW - laser methods KW - Moon KW - planetology KW - mass spectroscopy KW - spectroscopy KW - LIMS KW - Laser-induced-plasma Ion Mass Spectroscopy KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52218305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Laser+induced-plasma+ion+mass+spectrometry+for+characterization+of+lunar+and+planetary+surfaces&rft.au=Wiens%2C+R+C%3BBlacic%2C+J+D%3BCremers%2C+D+A%3BRitzau%2C+S+M%3BNordholt%2C+J+E%3BFunsten%2C+H+O%3BAnonymous&rft.aulast=Wiens&rft.aufirst=R&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - high-resolution methods; instruments; laser methods; Laser-induced-plasma Ion Mass Spectroscopy; LIMS; mass spectroscopy; Moon; planetology; spectroscopy ER - TY - JOUR T1 - Variations in solar-proton fluxes over the last million years AN - 52215669; 2001-048046 AB - Average solar-proton fluxes from 1954-1996 and from lunar SCR-produced nuclides for 10 ka to 5 Ma ago are summarized. The good results for fluxes >30 MeV indicate a trend with higher fluxes recently than those averaged over the last million years. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Reedy, Robert C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1643 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - Quaternary KW - Moon KW - isotopes KW - cosmogenic elements KW - cosmochemistry KW - Apollo Program KW - protons KW - variations KW - Cenozoic KW - Tertiary KW - lunar samples KW - radioactive isotopes KW - Neogene KW - Apollo 11 KW - Pliocene KW - particles KW - solar activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52215669?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Variations+in+solar-proton+fluxes+over+the+last+million+years&rft.au=Reedy%2C+Robert+C%3BAnonymous&rft.aulast=Reedy&rft.aufirst=Robert&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 17 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo 11; Apollo Program; Cenozoic; cosmochemistry; cosmogenic elements; isotopes; lunar samples; Moon; Neogene; particles; Pliocene; protons; Quaternary; radioactive isotopes; solar activity; Tertiary; variations ER - TY - JOUR T1 - New neutron and proton production cross section measurements for cosmic ray studies AN - 52215646; 2001-048044 AB - Cosmic rays produce nuclides in lunar rocks and meteorites. Good neutron and proton production cross sections are needed to analyze these cosmogenic nuclide archives. New cross sections reported here include SiO (sub 2) (n,x)14C at 78.4+ or -1.9 MeV and Ti(p,x) (super 14) C for 100-500 MeV. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sisterson, J M AU - Vincent, J AU - Yen, S AU - Zyuzin, A Y AU - Jull, A J T AU - Donahue, D J AU - Cloudt, S AU - Klandrud, S AU - Jones, D T L AU - Symons, J E AU - Schroeder, I AU - Binns, P J AU - Brooks, F D AU - Buffler, A AU - Allie, M S AU - Nchodu, M R AU - Ullmann, J AU - Reedy, Robert C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1202 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - experimental studies KW - irradiation KW - Moon KW - isotopes KW - cosmogenic elements KW - cosmochemistry KW - protons KW - measurement KW - meteorites KW - laboratory studies KW - lunar samples KW - radioactive isotopes KW - neutrons KW - cosmic rays KW - geochemistry KW - solar activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52215646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=New+neutron+and+proton+production+cross+section+measurements+for+cosmic+ray+studies&rft.au=Sisterson%2C+J+M%3BVincent%2C+J%3BYen%2C+S%3BZyuzin%2C+A+Y%3BJull%2C+A+J+T%3BDonahue%2C+D+J%3BCloudt%2C+S%3BKlandrud%2C+S%3BJones%2C+D+T+L%3BSymons%2C+J+E%3BSchroeder%2C+I%3BBinns%2C+P+J%3BBrooks%2C+F+D%3BBuffler%2C+A%3BAllie%2C+M+S%3BNchodu%2C+M+R%3BUllmann%2C+J%3BReedy%2C+Robert+C%3BAnonymous&rft.aulast=Sisterson&rft.aufirst=J&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cosmic rays; cosmochemistry; cosmogenic elements; experimental studies; geochemistry; irradiation; isotopes; laboratory studies; lunar samples; measurement; meteorites; Moon; neutrons; protons; radioactive isotopes; solar activity ER - TY - JOUR T1 - Unsaturated zone tracer testing at Busted Butte, Nevada; Phase 2 methods and preliminary results AN - 52212785; 2001-054012 AB - Building on the successes of the Phase 1 Busted Butte tests (Bussod et al., this session), Phase 2 was initiated in July 1998 and is anticipated to continue through Spring 2000. Phase 2 is an expanded version of Phase 1, scaled up both spatially and with respect to flow rates, and involves an augmented suite of reactive and nonreactive tracers. Phase 2 is underway within an in-situ 10 mX10 mX7 m test block with access along two adjacent faces. Tracer solution is being continuously injected at 77 discrete points located along eight parallel 10-m boreholes arranged in two horizontal planes. Injection rates range from 1 to 50 mL/hr at each point. Porewater samples are collected regularly using approximately 250 sorbing-paper collection pads, emplaced using an inflatable inverting membrane system into twelve horizontal and inclined 10-m collection boreholes, oriented perpendicular to the injection boreholes. Injection and collection boreholes are arranged to provide injection-to-collection travel distances ranging from 15 to 700 cm. The Phase 2 tracer mixture includes non-reactive anionic tracers (bromide, fluorinated benzoic acids "FBAs"), non-reactive and slightly reactive fluorescent dyes (sodium fluorescein, rhodamine WT, and 3-carbomoyl-2(1H)-pyridone), a reactive alkali metal (lithium), reactive transition metals (manganese, cobalt, and nickel), reactive rare earths (cerium and samarium) and synthetic colloidal tracers (fluorescent latex microspheres). The tracer mixture is prepared in synthetic porewater, designed to mimic local porewater chemistry. Five different FBAs are used to label different injection boreholes, to determine the degree of lateral mixing and provide an estimate of unsaturated transverse dispersivity under a range of saturation conditions. The collection pads are transported to Los Alamos National Lab for extraction and analysis by IC, HPLC, ICP/MS, fluorimetry, and epifluorescent microscopy. Early results show that non-reactive tracer breakthrough for short travel distances occurred within one month of the start of the test; within six months, virtually all of the collection boreholes were showing non-reactive tracer breakthrough. Analysis of the different FBAs shows clear evidence of lateral mixing between the injection and collection zones. These and new late-breaking results will be presented during the talk. JF - Abstracts with Programs - Geological Society of America AU - Turin, H J AU - Bussod, G Y AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 491 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - methods KW - fluorimetry KW - solutions KW - injection KW - unsaturated zone KW - mass spectra KW - hydrochemistry KW - ground water KW - transport KW - movement KW - tracers KW - testing KW - Busted Butte KW - spectra KW - geochemistry KW - pore water KW - Nevada KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52212785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Unsaturated+zone+tracer+testing+at+Busted+Butte%2C+Nevada%3B+Phase+2+methods+and+preliminary+results&rft.au=Turin%2C+H+J%3BBussod%2C+G+Y%3BAnonymous&rft.aulast=Turin&rft.aufirst=H&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=491&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Busted Butte; fluorimetry; geochemistry; ground water; hydrochemistry; injection; mass spectra; methods; movement; Nevada; pore water; solutions; spectra; testing; tracers; transport; United States; unsaturated zone ER - TY - JOUR T1 - Unsaturated zone tracer testing at Busted Butte, Nevada; Phase 1, Results and model predictions AN - 52210942; 2001-054016 AB - The transport properties of the unsaturated fractured rocks of Busted Butte, Nevada are being investigated in relation to the potential high-level radioactive waste repository at Yucca Mountain. An underground test facility has been sited, designed, and constructed in Area 25 of the Nevada Test Site, approximately 160 km northwest of Las Vegas and 8 km southeast of the potential repository. The site was chosen based on the presence of a readily accessible exposure of unsaturated rocks of the Topopah Springs Tuff/Calico Hills Formation and the similarity of these units to those beneath the potential repository. The test is divided into Phases 1 and 2 initiated in April and July 1998 respectively. Phase 2 results are discussed elsewhere (Turin and Bussod, this session). Phase 1 was a scoping program involving 6 single-point injection and 2 collection boreholes, each 2 m in length. The Phase 1 tracer mixture included radionuclide and colloid analogs consisting of nonreactive and reactive solutes and latex microspheres. This portion of the test was subdivided into Phases 1A and 1B. After 8 months of continuous tracer injection in Phase 1A and 6 months in Phase 1B, tracer distributions were determined by mineback and overcoring. Results indicate that capillary forces dominate in the vitric Calico Hills Formation, fracture-matrix interactions are strong and that fracture surfaces do not behave as fast pathways but rather as additional pore space within a porous medium. Observations point to the anisotropic nature of hydrologic heterogeneities (e.g., lithologic boundaries) and show that strong capillary forces in the vitric matrix are responsible for substantial physical retardation. The presence of highly sorbing clays (clay content 4(+ or -2)%) in the vitric Calico Hills rocks indicates that strong chemical retardation is expected when combined with the observed porous flow behavior. This implies that fractured vitric tuffs may act as a strong physical and chemical barrier to radionuclide migration over a large range of natural infiltration conditions (30-400 mm/yr). JF - Abstracts with Programs - Geological Society of America AU - Bussod, G Y AU - Turin, H J AU - Robinson, B A AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 491 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - fractured materials KW - isotopes KW - unsaturated zone KW - radioactive waste KW - Cenozoic KW - Nevada Test Site KW - radioactive isotopes KW - transport KW - tracers KW - Calico Hills Formation KW - Yucca Mountain KW - Nevada KW - high-level waste KW - matrix KW - prediction KW - properties KW - Nye County Nevada KW - porosity KW - Miocene KW - models KW - Topopah Spring Member KW - Tertiary KW - Neogene KW - infiltration KW - testing KW - Busted Butte KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52210942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Unsaturated+zone+tracer+testing+at+Busted+Butte%2C+Nevada%3B+Phase+1%2C+Results+and+model+predictions&rft.au=Bussod%2C+G+Y%3BTurin%2C+H+J%3BRobinson%2C+B+A%3BAnonymous&rft.aulast=Bussod&rft.aufirst=G&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=491&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Busted Butte; Calico Hills Formation; Cenozoic; fractured materials; high-level waste; infiltration; isotopes; matrix; Miocene; models; Neogene; Nevada; Nevada Test Site; Nye County Nevada; porosity; prediction; properties; radioactive isotopes; radioactive waste; Tertiary; testing; Topopah Spring Member; tracers; transport; United States; unsaturated zone; waste disposal; Yucca Mountain ER - TY - JOUR T1 - In-situ detection of DNA in microfossils by fluorescent staining AN - 52209975; 2001-053757 AB - The analysis of microscopic fossils is gaining increasing importance, especially in light of recent evidence suggesting the possibility of past biogenic activity in meteorites originating from Mars. While the fossil record for macroscopic life forms is relatively well established, the microbial fossil record is less well understood. This is due in part to the fact that ancient microbes have become a focus of study only recently, but also due in part to the difficulty in positive identification of fossil microorganisms. To date, the majority of studies have focused on morphological features of fossil materials to identify structures that resemble extant microorganisms and on isotopic signatures consistent with microbial enrichment.In this study, we demonstrate the feasibility of direct fluorescent staining of nucleic acids within microfossils. Both recent ( approximately 100 y) and older ( approximately 3 My) siliceous sinters containing fossil Calothrix filaments were successfully stained with the DNA binding dye propidium iodide. The specificity of the staining was confirmed by ablation of the stainable material by a specific DNase enzyme. Our results suggest that DNA persists within certain microfossils for at least 3 My in a form that is accessible to specific DNA dyes. DNA staining could thus be useful as a biological signature for confirmation of microfossils. This approach may be particularly useful in the analysis of microfossils which are difficult to recognize morphologically. JF - Abstracts with Programs - Geological Society of America AU - Burde, Stefan AU - Marrone, Babetta L AU - Farmer, Jack D AU - Hersman, Larry E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 432 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - siliceous sinter KW - chemically precipitated rocks KW - sedimentary rocks KW - detection KW - in situ KW - fluorescence KW - DNA KW - fossil record KW - Calothrix KW - biomarkers KW - microfossils KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52209975?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=In-situ+detection+of+DNA+in+microfossils+by+fluorescent+staining&rft.au=Burde%2C+Stefan%3BMarrone%2C+Babetta+L%3BFarmer%2C+Jack+D%3BHersman%2C+Larry+E%3BAnonymous&rft.aulast=Burde&rft.aufirst=Stefan&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=432&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biomarkers; Calothrix; chemically precipitated rocks; detection; DNA; fluorescence; fossil record; in situ; microfossils; sedimentary rocks; siliceous sinter ER - TY - JOUR T1 - Strontium/calcium and carbon and oxygen isotopic variability in corals from Discovery Bay, Jamaica AN - 52209679; 2001-053835 JF - Abstracts with Programs - Geological Society of America AU - Heikoop, Jeffrey M AU - Hickmott, Donald D AU - Risk, Michael J AU - Hart, Stanley R AU - Cohen, Anne L AU - Sandeman, Ian M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 461 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - calcium KW - Greater Antilles KW - Montastrea KW - oxygen KW - ion probe data KW - isotopes KW - mass spectra KW - Discovery Bay KW - stable isotopes KW - variations KW - temperature KW - Zoantharia KW - paleotemperature KW - carbon KW - Anthozoa KW - Invertebrata KW - spectra KW - kinetics KW - juvenile taxa KW - alkaline earth metals KW - isotope ratios KW - biochemistry KW - C-13/C-12 KW - West Indies KW - Caribbean region KW - O-18/O-16 KW - Jamaica KW - Coelenterata KW - Scleractinia KW - Antilles KW - metals KW - Montastrea annularis KW - Cnidaria KW - strontium KW - 10:Invertebrate paleontology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52209679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Strontium%2Fcalcium+and+carbon+and+oxygen+isotopic+variability+in+corals+from+Discovery+Bay%2C+Jamaica&rft.au=Heikoop%2C+Jeffrey+M%3BHickmott%2C+Donald+D%3BRisk%2C+Michael+J%3BHart%2C+Stanley+R%3BCohen%2C+Anne+L%3BSandeman%2C+Ian+M%3BAnonymous&rft.aulast=Heikoop&rft.aufirst=Jeffrey&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=461&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Anthozoa; Antilles; biochemistry; C-13/C-12; calcium; carbon; Caribbean region; Cnidaria; Coelenterata; Discovery Bay; Greater Antilles; Invertebrata; ion probe data; isotope ratios; isotopes; Jamaica; juvenile taxa; kinetics; mass spectra; metals; Montastrea; Montastrea annularis; O-18/O-16; oxygen; paleotemperature; Scleractinia; spectra; stable isotopes; strontium; temperature; variations; West Indies; Zoantharia ER - TY - JOUR T1 - High-level radioactive waste disposal and volcanic hazard in Japan; a natural analog study of the Summer Coon Volcano, Colorado AN - 52209614; 2001-053939 AB - The possible disruption of a geologic repository from formation of a new volcano and its radial dike system is being evaluated as part of site selection for high-level radioactive waste disposal in Japan. Our objectives are to determine the probability of a radial dike intersecting a repository and to assess the hydrothermal effects induced by radial dikes on the repository and nearby geologic environment. As a natural analog to Japanese stratovolcanoes, we are investigating the radial dike system of Summer Coon, a deeply eroded Oligocene stratovolcano on the eastern edge of the San Juan volcanic field in southern Colorado. It is characterized by two eruptive sequences: (1) early basaltic andesite with minor volume of intercalated rhyolite; and (2) later andesite/dacite. The stratovolcano has been deeply eroded, exposing the subvolcanic structure, the hydrothermally altered central intrusive complex, and the plumbing of the radial dike system. Nine new (super 40) Ar/ (super 39) Ar age determinations representing the entire stratigraphic sequence of the volcano range from 32.6 to 33.9 Ma. Seven of the nine samples define ages between approximately 33.0 and 33.5 Ma. The results suggest magmatic activity may have taken place within a short time span of approximately 100-200 ka, comparable to the period of concern for performance of a geologic repository. The risk from a dike intersecting a hypothetical repository is a function of the density and length of radial dikes, the frequency of dike intrusion, the lateral thermal and mechanical effects adjacent to the dike, and the size of a repository and its distance from the volcanic center. Our results provide direct information on the density of dikes, which drop off rapidly with increasing distance from the volcanic center. In addition, we have observed that argillic and propylitic alteration and silicification are confined to a narrow zone within the central intrusive complex of the volcano, while smectite alteration is common adjacent to dikes at locations several kilometers from the central complex. These effects, along with the duration of activity determined from ages described above, will be combined with regulatory constraints on repository lifetime to determine overall risk. JF - Abstracts with Programs - Geological Society of America AU - Perry, F V AU - WoldeGabriel, Giday AU - Valentine, G A AU - Desmarais, E K AU - Heiken, G AU - Heizler, M AU - Yamakawa, M AU - Umeda, K AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 478 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - stratovolcanoes KW - alteration KW - silicification KW - Far East KW - andesites KW - volcanic rocks KW - geologic hazards KW - igneous rocks KW - regulations KW - radioactive waste KW - Cenozoic KW - volcanic features KW - dates KW - absolute age KW - dacites KW - Asia KW - Ar/Ar KW - high-level waste KW - rhyolites KW - magmatism KW - San Juan volcanic field KW - southern Colorado KW - Paleogene KW - volcanic centers KW - Tertiary KW - intrusions KW - dikes KW - eruptions KW - natural analogs KW - volcanoes KW - risk assessment KW - waste disposal KW - Colorado KW - Summer Coon KW - Japan KW - Oligocene KW - 24:Quaternary geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52209614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=High-level+radioactive+waste+disposal+and+volcanic+hazard+in+Japan%3B+a+natural+analog+study+of+the+Summer+Coon+Volcano%2C+Colorado&rft.au=Perry%2C+F+V%3BWoldeGabriel%2C+Giday%3BValentine%2C+G+A%3BDesmarais%2C+E+K%3BHeiken%2C+G%3BHeizler%2C+M%3BYamakawa%2C+M%3BUmeda%2C+K%3BAnonymous&rft.aulast=Perry&rft.aufirst=F&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=478&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absolute age; alteration; andesites; Ar/Ar; Asia; Cenozoic; Colorado; dacites; dates; dikes; eruptions; Far East; geologic hazards; high-level waste; igneous rocks; intrusions; Japan; magmatism; natural analogs; Oligocene; Paleogene; radioactive waste; regulations; rhyolites; risk assessment; San Juan volcanic field; silicification; southern Colorado; stratovolcanoes; Summer Coon; Tertiary; United States; volcanic centers; volcanic features; volcanic rocks; volcanoes; waste disposal ER - TY - JOUR T1 - Application of lattice Boltzmann techniques to modeling small scale water-rock interaction AN - 52157492; 2002-008266 JF - Abstracts with Programs - Geological Society of America AU - Fritz, Diane E AU - Farmer, G Lang AU - Janecky, David R AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 28 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - processes KW - fractured materials KW - sorption KW - lattice Boltzmann model KW - techniques KW - equations KW - ground water KW - models KW - water-rock interaction KW - transport KW - isotherms KW - applications KW - geochemistry KW - particles KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52157492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Application+of+lattice+Boltzmann+techniques+to+modeling+small+scale+water-rock+interaction&rft.au=Fritz%2C+Diane+E%3BFarmer%2C+G+Lang%3BJanecky%2C+David+R%3BAnonymous&rft.aulast=Fritz&rft.aufirst=Diane&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=28&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1999 GSA annual meeting and exposition N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - applications; equations; fractured materials; geochemistry; ground water; isotherms; lattice Boltzmann model; models; particles; processes; sorption; techniques; transport; water-rock interaction ER - TY - JOUR T1 - The Martian radiation environment from orbit and on the surface AN - 52097503; 2002-046732 JF - LPI Contribution AU - Reedy, Robert C AU - Howe, S D A2 - Marshall, John A2 - Weitz, Catherine M. Y1 - 1999 PY - 1999 DA - 1999 SP - 87 EP - 89 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - terrestrial planets KW - planets KW - future KW - solar radiation KW - atmosphere KW - Mars KW - human exploration KW - environmental analysis KW - Martian atmosphere KW - solar energy KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52097503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=The+Martian+radiation+environment+from+orbit+and+on+the+surface&rft.au=Reedy%2C+Robert+C%3BHowe%2C+S+D&rft.aulast=Reedy&rft.aufirst=Robert&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on Mars 2001; Integrated science in preparation for sample return and human exploration N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 19 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - atmosphere; environmental analysis; future; human exploration; Mars; Martian atmosphere; observations; planets; solar energy; solar radiation; terrestrial planets ER - TY - BOOK T1 - Deterministic prediction of unsaturated flow in randomly heterogeneous soils under uncertainty without upscaling AN - 52087374; 2002-053246 JF - Characterization and measurement of the hydraulic properties of unsaturated porous media AU - Neuman, S P AU - Tartakovsky, D M AU - Filippone, C AU - Amir, O AU - Lu, Z A2 - van Genuchten, M. T. A2 - Leij, F. J. A2 - Wu, L. Y1 - 1999 PY - 1999 DA - 1999 PB - University of California at Riverside, Riverside, CA KW - soils KW - hydraulics KW - Darcy's law KW - Monte Carlo analysis KW - statistical analysis KW - unsaturated zone KW - boundary conditions KW - measurement KW - heterogeneous materials KW - sampling KW - water content KW - hydraulic conductivity KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52087374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Neuman%2C+S+P%3BTartakovsky%2C+D+M%3BFilippone%2C+C%3BAmir%2C+O%3BLu%2C+Z&rft.aulast=Neuman&rft.aufirst=S&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Deterministic+prediction+of+unsaturated+flow+in+randomly+heterogeneous+soils+under+uncertainty+without+upscaling&rft.title=Deterministic+prediction+of+unsaturated+flow+in+randomly+heterogeneous+soils+under+uncertainty+without+upscaling&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Characterization and measurement of the hydraulic properties of unsaturated porous media N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 23 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Textural studies of altered/metamorphosed tuffs and secondary REE-, Zr- and Y-minerals; SEM examinations AN - 51894156; 2004-011822 JF - Goettinger Arbeiten zur Geologie und Palaeontologie. Sonderband AU - Obenholzner, J H AU - Heiken, G A2 - Leiss, Bernd A2 - Ullemeyer, Klaus A2 - Weber, Klaus Y1 - 1999 PY - 1999 DA - 1999 SP - 138 EP - 139 PB - Geologisch-Palaeontologische Institut der Georg-August-Universitaet, Gottingen VL - 4 KW - alteration KW - imagery KW - experimental studies KW - volcanic rocks KW - secondary minerals KW - textures KW - igneous rocks KW - zirconium KW - pyroclastics KW - laboratory studies KW - metals KW - diagenesis KW - tuff KW - rare earths KW - SEM data KW - backscattering KW - yttrium KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51894156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Goettinger+Arbeiten+zur+Geologie+und+Palaeontologie.+Sonderband&rft.atitle=Textural+studies+of+altered%2Fmetamorphosed+tuffs+and+secondary+REE-%2C+Zr-+and+Y-minerals%3B+SEM+examinations&rft.au=Obenholzner%2C+J+H%3BHeiken%2C+G&rft.aulast=Obenholzner&rft.aufirst=J&rft.date=1999-01-01&rft.volume=4&rft.issue=&rft.spage=138&rft.isbn=&rft.btitle=&rft.title=Goettinger+Arbeiten+zur+Geologie+und+Palaeontologie.+Sonderband&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International conference on Textures and physical properties of rocks N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 2 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #04261 N1 - SubjectsTermNotLitGenreText - alteration; backscattering; diagenesis; experimental studies; igneous rocks; imagery; laboratory studies; metals; pyroclastics; rare earths; secondary minerals; SEM data; textures; tuff; volcanic rocks; yttrium; zirconium ER - TY - JOUR T1 - Imaging of the Jemez volcanic field using Kirchhoff migration of teleseismic wavefields AN - 51809003; 2004-064527 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Aprea, Claudia Maria AU - Hildebrand, Steven AU - Fehler, Michael AU - Steck, Lee AU - Baldridge, W Scott AU - Roberts, Peter AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 152 PB - IUGG, [location varies] VL - 99, WEEK B KW - United States KW - tomography KW - Jemez volcanic field KW - upper mantle KW - geophysical methods KW - mantle KW - reflection methods KW - elastic waves KW - New Mexico KW - seismographs KW - seismic migration KW - Kirchhoff integral KW - teleseismic signals KW - seismic methods KW - low-velocity zones KW - calderas KW - volcanic features KW - seismic waves KW - instruments KW - crust KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51809003?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Imaging+of+the+Jemez+volcanic+field+using+Kirchhoff+migration+of+teleseismic+wavefields&rft.au=Aprea%2C+Claudia+Maria%3BHildebrand%2C+Steven%3BFehler%2C+Michael%3BSteck%2C+Lee%3BBaldridge%2C+W+Scott%3BRoberts%2C+Peter%3BAnonymous&rft.aulast=Aprea&rft.aufirst=Claudia&rft.date=1999-01-01&rft.volume=99%2C+WEEK+B&rft.issue=&rft.spage=152&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - calderas; crust; elastic waves; geophysical methods; instruments; Jemez volcanic field; Kirchhoff integral; low-velocity zones; mantle; New Mexico; reflection methods; seismic methods; seismic migration; seismic waves; seismographs; teleseismic signals; tomography; United States; upper mantle; volcanic features ER - TY - JOUR T1 - Pressure dependence of electrical conductivity of mantle olivine AN - 51741310; 2005-022655 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Shankland, Thomas J AU - Xu, Yousheng AU - Duba, A C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 297 PB - IUGG, [location varies] VL - 99, Week A KW - silicates KW - upper mantle KW - experimental studies KW - electrical conductivity KW - pressure KW - mantle KW - olivine group KW - high pressure KW - temperature KW - nesosilicates KW - laboratory studies KW - olivine KW - orthosilicates KW - high temperature KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51741310?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Pressure+dependence+of+electrical+conductivity+of+mantle+olivine&rft.au=Shankland%2C+Thomas+J%3BXu%2C+Yousheng%3BDuba%2C+A+C%3BAnonymous&rft.aulast=Shankland&rft.aufirst=Thomas&rft.date=1999-01-01&rft.volume=99%2C+Week+A&rft.issue=&rft.spage=297&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG 99 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 4 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - electrical conductivity; experimental studies; high pressure; high temperature; laboratory studies; mantle; nesosilicates; olivine; olivine group; orthosilicates; pressure; silicates; temperature; upper mantle ER - TY - JOUR T1 - The role of garnet-pyroxenite in the source of Hawai'ian basalts; hafnium-neodymium-thorium-isotopic evidence AN - 51602017; 2006-032480 JF - LPI Contribution AU - Stracke, A AU - Salters, V J M AU - Sims, K W W AU - Blichert-Toft, J AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 285 EP - 286 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - United States KW - silicates KW - Hf-177/Hf-176 KW - volcanic rocks KW - isotopes KW - igneous rocks KW - garnet group KW - Th/U KW - stable isotopes KW - melts KW - plutonic rocks KW - hafnium KW - basalts KW - orthosilicates KW - rare earths KW - geochemistry KW - isotope ratios KW - Hawaii KW - East Pacific Ocean Islands KW - ultramafics KW - nesosilicates KW - Nd-144/Nd-143 KW - partition coefficients KW - pyroxenite KW - metals KW - Oceania KW - thorium KW - Polynesia KW - neodymium KW - actinides KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51602017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=The+role+of+garnet-pyroxenite+in+the+source+of+Hawai%27ian+basalts%3B+hafnium-neodymium-thorium-isotopic+evidence&rft.au=Stracke%2C+A%3BSalters%2C+V+J+M%3BSims%2C+K+W+W%3BBlichert-Toft%2C+J%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Stracke&rft.aufirst=A&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - actinides; basalts; East Pacific Ocean Islands; garnet group; geochemistry; hafnium; Hawaii; Hf-177/Hf-176; igneous rocks; isotope ratios; isotopes; melts; metals; Nd-144/Nd-143; neodymium; nesosilicates; Oceania; orthosilicates; partition coefficients; plutonic rocks; Polynesia; pyroxenite; rare earths; silicates; stable isotopes; Th/U; thorium; ultramafics; United States; volcanic rocks ER - TY - JOUR T1 - Rare-earth-element and trace-element trends in the Everglades as tracers for sedimentary processes AN - 51601221; 2006-032471 JF - LPI Contribution AU - Sonke, J E AU - Salters, V J M AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 281 EP - 282 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - United States KW - processes KW - bedrock KW - fertilizers KW - praseodymium KW - Everglades KW - pollutants KW - pollution KW - ecosystems KW - Florida KW - wetlands KW - metals KW - tracers KW - eutrophication KW - ytterbium KW - ecology KW - rare earths KW - trace elements KW - geochemistry KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51601221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Rare-earth-element+and+trace-element+trends+in+the+Everglades+as+tracers+for+sedimentary+processes&rft.au=Sonke%2C+J+E%3BSalters%2C+V+J+M%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Sonke&rft.aufirst=J&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - bedrock; ecology; ecosystems; eutrophication; Everglades; fertilizers; Florida; geochemistry; metals; pollutants; pollution; praseodymium; processes; rare earths; trace elements; tracers; United States; wetlands; ytterbium ER - TY - JOUR T1 - Evidence for radium-barium fractionation in mid-ocean-ridge basalt plagioclase; implications for geochronology and mantle melting AN - 51600961; 2006-032133 JF - LPI Contribution AU - Goldstein, S J AU - Sims, K W W AU - Cooper, K M AU - Murrell, M T AU - Nunn, A J AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 101 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - silicates KW - upwelling KW - isotope fractionation KW - volcanic rocks KW - isotopes KW - igneous rocks KW - mantle KW - Ra-226 KW - partitioning KW - radioactive isotopes KW - melting KW - barium KW - basalts KW - framework silicates KW - geochemistry KW - alkaline earth metals KW - plagioclase KW - radium KW - isochrons KW - measurement KW - metals KW - mid-ocean ridge basalts KW - crystallization KW - feldspar group KW - 18:Solid-earth geophysics KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51600961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Evidence+for+radium-barium+fractionation+in+mid-ocean-ridge+basalt+plagioclase%3B+implications+for+geochronology+and+mantle+melting&rft.au=Goldstein%2C+S+J%3BSims%2C+K+W+W%3BCooper%2C+K+M%3BMurrell%2C+M+T%3BNunn%2C+A+J%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Goldstein&rft.aufirst=S&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - alkaline earth metals; barium; basalts; crystallization; feldspar group; framework silicates; geochemistry; igneous rocks; isochrons; isotope fractionation; isotopes; mantle; measurement; melting; metals; mid-ocean ridge basalts; partitioning; plagioclase; Ra-226; radioactive isotopes; radium; silicates; upwelling; volcanic rocks ER - TY - JOUR T1 - Dissolution of aluminum-substituted goethites by an anaerobic Pseudomonas mendocina var. bacteria AN - 51599385; 2006-032296 JF - LPI Contribution AU - Maurice, P A AU - Lee, Y J AU - Hersman, L E AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 191 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - soils KW - goethite KW - solutions KW - substitution KW - Pseudomonas KW - solution KW - Pseudomonas mendocina KW - metals KW - aluminum KW - bacteria KW - oxides KW - anaerobic environment KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51599385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Dissolution+of+aluminum-substituted+goethites+by+an+anaerobic+Pseudomonas+mendocina+var.+bacteria&rft.au=Maurice%2C+P+A%3BLee%2C+Y+J%3BHersman%2C+L+E%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Maurice&rft.aufirst=P&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - TX N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - aluminum; anaerobic environment; bacteria; geochemistry; goethite; metals; oxides; Pseudomonas; Pseudomonas mendocina; soils; solution; solutions; substitution ER - TY - JOUR T1 - Residence of magma at Kilauea Volcano, Hawaii; internal thorium-230-radium-226 isochron dating of the 1955 East Rift eruption AN - 51598721; 2006-032051 JF - LPI Contribution AU - Cooper, K M AU - Reid, M R AU - Roback, R C AU - Murrell, M T AU - Clague, D A AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 60 EP - 61 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - United States KW - Hawaii Island KW - Th-230 KW - isotopes KW - Ra-226 KW - radioactive isotopes KW - phase equilibria KW - dates KW - volcanism KW - absolute age KW - Th/Ra KW - Kilauea KW - alkaline earth metals KW - radium KW - Hawaii County Hawaii KW - Hawaii KW - East Pacific Ocean Islands KW - isochrons KW - metals KW - magmas KW - eruptions KW - Oceania KW - volcanoes KW - thorium KW - crystallization KW - Polynesia KW - actinides KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51598721?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Residence+of+magma+at+Kilauea+Volcano%2C+Hawaii%3B+internal+thorium-230-radium-226+isochron+dating+of+the+1955+East+Rift+eruption&rft.au=Cooper%2C+K+M%3BReid%2C+M+R%3BRoback%2C+R+C%3BMurrell%2C+M+T%3BClague%2C+D+A%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Cooper&rft.aufirst=K&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=60&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - absolute age; actinides; alkaline earth metals; crystallization; dates; East Pacific Ocean Islands; eruptions; Hawaii; Hawaii County Hawaii; Hawaii Island; isochrons; isotopes; Kilauea; magmas; metals; Oceania; phase equilibria; Polynesia; Ra-226; radioactive isotopes; radium; Th-230; Th/Ra; thorium; United States; volcanism; volcanoes ER - TY - JOUR T1 - Volcanoes and megacities AN - 51471707; 2007-029377 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Heiken, Grant AU - Valentine, Greg AU - Orsi, Giovanni AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 7 PB - IUGG, [location varies] VL - 99, Week A KW - monitoring KW - geologic hazards KW - public awareness KW - cartography KW - human activity KW - public policy KW - destruction KW - damage KW - education KW - research KW - urban environment KW - human ecology KW - geology KW - volcanic risk KW - eruptions KW - volcanoes KW - volcanic earthquakes KW - risk assessment KW - earthquakes KW - catastrophes KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51471707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Volcanoes+and+megacities&rft.au=Heiken%2C+Grant%3BValentine%2C+Greg%3BOrsi%2C+Giovanni%3BAnonymous&rft.aulast=Heiken&rft.aufirst=Grant&rft.date=1999-01-01&rft.volume=99%2C+Week+A&rft.issue=&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - cartography; catastrophes; damage; destruction; earthquakes; education; eruptions; geologic hazards; geology; human activity; human ecology; monitoring; public awareness; public policy; research; risk assessment; urban environment; volcanic earthquakes; volcanic risk; volcanoes ER - TY - JOUR T1 - Urban security; earthquake damage modeling for urban systems AN - 51370284; 2007-105193 JF - Conference Abstracts - Conference on the Applications of Remote Sensing and GIS for Disaster Management AU - Maheshwari, Sudha AU - Jones, Eric AU - Olsen, Kim AU - Rasmussen, Steen AU - Fogel, David Y1 - 1999 PY - 1999 DA - 1999 SP - I EP - 11 PB - George Washington University, Washington, DC VL - 2 KW - United States KW - programs KW - geologic hazards KW - damage KW - decision-making KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - simulation KW - urban environment KW - models KW - California KW - disaster management KW - spatial variations KW - mitigation KW - geographic information systems KW - planning KW - Los Angeles Basin KW - risk assessment KW - information systems KW - earthquakes KW - Urban Security Pilot Project KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51370284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Conference+Abstracts+-+Conference+on+the+Applications+of+Remote+Sensing+and+GIS+for+Disaster+Management&rft.atitle=Urban+security%3B+earthquake+damage+modeling+for+urban+systems&rft.au=Maheshwari%2C+Sudha%3BJones%2C+Eric%3BOlsen%2C+Kim%3BRasmussen%2C+Steen%3BFogel%2C+David&rft.aulast=Maheshwari&rft.aufirst=Sudha&rft.date=1999-01-01&rft.volume=2&rft.issue=&rft.spage=I&rft.isbn=&rft.btitle=&rft.title=Conference+Abstracts+-+Conference+on+the+Applications+of+Remote+Sensing+and+GIS+for+Disaster+Management&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - The second conference on The applications of remote sensing and GIS for disaster management; providing effective spatial information for disaster management N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - #06287 N1 - SubjectsTermNotLitGenreText - California; damage; decision-making; disaster management; earthquakes; geographic information systems; geologic hazards; information systems; Los Alamos County New Mexico; Los Alamos National Laboratory; Los Angeles Basin; mitigation; models; New Mexico; planning; programs; risk assessment; simulation; spatial variations; United States; urban environment; Urban Security Pilot Project ER - TY - JOUR T1 - Monte Carlo simulations of gamma ray emission from the lunar surface AN - 51335711; 2001-063033 AB - Fluxes of the gamma rays from the lunar surface were simulated for chemical compositions characterized by high and low iron content. These fluxes can contribute to the interpretation of experimental neutron and gamma-ray data from Lunar Prospector. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Masarik, J AU - Brueckner, J AU - Reedy, R C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1655 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - surface properties KW - Moon KW - radioactivity KW - Monte Carlo analysis KW - statistical analysis KW - Lunar Prospector Program KW - data processing KW - emission spectra KW - LAHET KW - neutrons KW - digital simulation KW - gamma-ray spectra KW - theoretical models KW - spectra KW - chemical composition KW - geochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51335711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Monte+Carlo+simulations+of+gamma+ray+emission+from+the+lunar+surface&rft.au=Masarik%2C+J%3BBrueckner%2C+J%3BReedy%2C+R+C%3BAnonymous&rft.aulast=Masarik&rft.aufirst=J&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical composition; data processing; digital simulation; emission spectra; gamma-ray spectra; geochemistry; LAHET; Lunar Prospector Program; Monte Carlo analysis; Moon; neutrons; radioactivity; spectra; statistical analysis; surface properties; theoretical models ER - TY - JOUR T1 - Lunar Prospector measurements of the distribution of incompatible elements gadolinium, samarium, and thorium AN - 51332149; 2001-042587 AB - Lunar Prospector neutron spectrometer (NS) and gamma ray spectrometer (GRS) observations have been used to map out the distribution of incompatible elements on the lunar surface. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Elphic, R C AU - Maurice, S AU - Lawrence, D J AU - Feldman, W C AU - Barraclough, B L AU - Binder, A B AU - Lucey, P G AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1109 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - Moon KW - Lunar Prospector Program KW - gadolinium KW - neutron probe KW - metals KW - gamma-ray spectra KW - thorium KW - spectra KW - samarium KW - rare earths KW - orbital observations KW - reflectance KW - geochemistry KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51332149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+Prospector+measurements+of+the+distribution+of+incompatible+elements+gadolinium%2C+samarium%2C+and+thorium&rft.au=Elphic%2C+R+C%3BMaurice%2C+S%3BLawrence%2C+D+J%3BFeldman%2C+W+C%3BBarraclough%2C+B+L%3BBinder%2C+A+B%3BLucey%2C+P+G%3BAnonymous&rft.aulast=Elphic&rft.aufirst=R&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - actinides; gadolinium; gamma-ray spectra; geochemistry; Lunar Prospector Program; metals; Moon; neutron probe; orbital observations; rare earths; reflectance; samarium; spectra; thorium ER - TY - JOUR T1 - Delineating the major KREEP-bearing terranes on the Moon with global measurements of absolute thorium abundances AN - 51332041; 2001-042588 AB - We are presenting new results regarding the global thorium abundances on the Moon using LP GRS data. Specifically, we are presenting a map of absolute thorium abundances along with thorium abundances for various lunar terranes. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lawrence, D J AU - Feldman, W C AU - Barraclough, B L AU - Binder, A B AU - Elphic, R C AU - Maurice, S AU - Miller, M C AU - Prettyman, T H AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 2024 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - concentration KW - Moon KW - cartography KW - Lunar Prospector Program KW - terranes KW - measurement KW - KREEP KW - Great Lunar Hot Spot KW - metals KW - gamma-ray spectra KW - thorium KW - spectra KW - orbital observations KW - geochemistry KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51332041?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Delineating+the+major+KREEP-bearing+terranes+on+the+Moon+with+global+measurements+of+absolute+thorium+abundances&rft.au=Lawrence%2C+D+J%3BFeldman%2C+W+C%3BBarraclough%2C+B+L%3BBinder%2C+A+B%3BElphic%2C+R+C%3BMaurice%2C+S%3BMiller%2C+M+C%3BPrettyman%2C+T+H%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=D&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - actinides; cartography; concentration; gamma-ray spectra; geochemistry; Great Lunar Hot Spot; KREEP; Lunar Prospector Program; measurement; metals; Moon; orbital observations; spectra; terranes; thorium ER - TY - JOUR T1 - Classification of lunar terranes using neutron and thorium gamma-ray data AN - 51331154; 2001-042589 AB - Lunar Prospector neutron flux data are combined with thorium gamma-ray line intensities to classify the various lunar terranes. Although our analysis is preliminary, the method shows promise of delineating low from high titanium regions on the Moon. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Feldman, W C AU - Lawrence, D J AU - Maurice, S AU - Elphic, R C AU - Barraclough, B L AU - Binder, A B AU - Lucey, P G AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 2056 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - Moon KW - Lunar Prospector Program KW - data processing KW - terranes KW - neutron probe KW - titanium KW - metals KW - digital simulation KW - classification KW - gamma-ray spectra KW - thorium KW - graphic methods KW - spectra KW - orbital observations KW - geochemistry KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51331154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Classification+of+lunar+terranes+using+neutron+and+thorium+gamma-ray+data&rft.au=Feldman%2C+W+C%3BLawrence%2C+D+J%3BMaurice%2C+S%3BElphic%2C+R+C%3BBarraclough%2C+B+L%3BBinder%2C+A+B%3BLucey%2C+P+G%3BAnonymous&rft.aulast=Feldman&rft.aufirst=W&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - actinides; classification; data processing; digital simulation; gamma-ray spectra; geochemistry; graphic methods; Lunar Prospector Program; metals; Moon; neutron probe; orbital observations; spectra; terranes; thorium; titanium ER - TY - JOUR T1 - Hydrothermal breccias in the AWI 1-2 corehole, Awibengkok geothermal field, West Java, Indonesia AN - 51209882; 2000-052983 AB - The 1+ km of continuous core from borehole AWI 1-2 in the hot-water-dominated Awibengkok geothermal system, Indonesia, is laced with spectacularly altered and mineralized hydrothermal breccias. The breccias contain angular to subrounded clasts of indigenous and exotic altered wallrock and vein fragments embedded in "rock-flour" matrices which commonly show evidence of fluidization during emplacement. The breccia bodies are mostly high-angle dikes up to about a meter wide, but several breccia intervals are bounded by subhorizontal contacts and may be either sills or subaerially deposited "aprons". Many of these hydrothermal breccias are vuggy, but none coincide clearly with active thermal-fluid entries. The breccias, though once highly permeable, were apparently tightly sealed with secondary phases (wairakite, quartz, pyrite, calcite) prior to development of modern, throughgoing, hot-water conduits. JF - Transactions - Geothermal Resources Council AU - Hulen, Jeffrey B AU - Goff, Fraser AU - WoldeGabriel, Giday AU - Johnson, Stuart D AU - Allis, Rick G AU - Thomasson, Robert L AU - Hanson, Jim AU - Capuano, Louis E, Jr AU - Schochet, Daniel AU - Livesay, Bill AU - Page, Terrence AU - Lovekin, James W AU - Johnson, Stephen E Y1 - 1999 PY - 1999 DA - 1999 SP - 13 EP - 17 PB - GRC - Geothermal Resources Council, Davis, CA VL - 23 SN - 0193-5933, 0193-5933 KW - Far East KW - breccia KW - Indonesia KW - sills KW - Java KW - cores KW - thermal waters KW - reservoir rocks KW - geothermal energy KW - western Java KW - geothermal fields KW - intrusions KW - dikes KW - sedimentary rocks KW - geothermal systems KW - boreholes KW - mineralization KW - Awibengkok Field KW - Asia KW - clastic rocks KW - permeability KW - 06A:Sedimentary petrology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51209882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+-+Geothermal+Resources+Council&rft.atitle=Hydrothermal+breccias+in+the+AWI+1-2+corehole%2C+Awibengkok+geothermal+field%2C+West+Java%2C+Indonesia&rft.au=Hulen%2C+Jeffrey+B%3BGoff%2C+Fraser%3BWoldeGabriel%2C+Giday%3BJohnson%2C+Stuart+D%3BAllis%2C+Rick+G%3BThomasson%2C+Robert+L%3BHanson%2C+Jim%3BCapuano%2C+Louis+E%2C+Jr%3BSchochet%2C+Daniel%3BLivesay%2C+Bill%3BPage%2C+Terrence%3BLovekin%2C+James+W%3BJohnson%2C+Stephen+E&rft.aulast=Hulen&rft.aufirst=Jeffrey&rft.date=1999-01-01&rft.volume=23&rft.issue=&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Transactions+-+Geothermal+Resources+Council&rft.issn=01935933&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Global Resources Council 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 12 N1 - PubXState - CA N1 - Document feature - illus. incl. sect., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Asia; Awibengkok Field; boreholes; breccia; clastic rocks; cores; dikes; Far East; geothermal energy; geothermal fields; geothermal systems; Indonesia; intrusions; Java; mineralization; permeability; reservoir rocks; sedimentary rocks; sills; thermal waters; western Java ER - TY - JOUR T1 - Regional hydrology of the Dixie Valley geothermal field, Nevada; preliminary interpretations of chemical and isotopic data AN - 51209251; 2000-053011 AB - Chemical and isotopic analyses of Dixie Valley regional waters indicate several distinct groups ranging in recharge age from Pleistocene (1000a). Geothermal field fluids ( approximately 12-14 ka) appear derived from water similar in composition to non-thermal groundwater observed today in valley artesian wells (also approximately 14 ka). Geothermal fluid interaction with mafic rocks (Humboldt Lopolith) appears to be common, and significant reaction with granodiorite may also occur. Despite widespread occurrence of carbonate rocks, largescale chemical interaction appears minor. Age asymmetry of the ranges, more extensive interaction with deep-seated waters in the west, and distribution of springs and artesian wells suggest the existence of a regional upward hydrologic gradient with an axis in proximity to the Stillwater range. JF - Transactions - Geothermal Resources Council AU - Nimz, Gregory AU - Janik, Cathy J AU - Goff, Fraser AU - Dunlap, Charles AU - Huebner, Mark AU - Counce, Dale AU - Johnson, Stuart D AU - Allis, Rick G AU - Thomasson, Robert L AU - Hanson, Jim AU - Capuano, Louis E, Jr AU - Schochet, Daniel AU - Livesay, Bill AU - Page, Terrence AU - Lovekin, James W AU - Johnson, Stephen E Y1 - 1999 PY - 1999 DA - 1999 SP - 333 EP - 338 PB - GRC - Geothermal Resources Council, Davis, CA VL - 23 SN - 0193-5933, 0193-5933 KW - United States KW - Churchill County Nevada KW - oxygen KW - Humboldt Salt Marsh KW - isotopes KW - igneous rocks KW - granites KW - mafic composition KW - Stillwater Fault KW - Dixie Valley Field KW - Holocene KW - stable isotopes KW - Dixie Valley KW - ground water KW - Cenozoic KW - artesian waters KW - sedimentary rocks KW - radioactive isotopes KW - plutonic rocks KW - water-rock interaction KW - dates KW - mixing KW - granodiorites KW - carbon KW - absolute age KW - springs KW - Nevada KW - water KW - hydrology KW - Quaternary KW - isotope ratios KW - O-18/O-16 KW - geothermal fields KW - recharge KW - C-14 KW - carbonate rocks KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51209251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+-+Geothermal+Resources+Council&rft.atitle=Regional+hydrology+of+the+Dixie+Valley+geothermal+field%2C+Nevada%3B+preliminary+interpretations+of+chemical+and+isotopic+data&rft.au=Nimz%2C+Gregory%3BJanik%2C+Cathy+J%3BGoff%2C+Fraser%3BDunlap%2C+Charles%3BHuebner%2C+Mark%3BCounce%2C+Dale%3BJohnson%2C+Stuart+D%3BAllis%2C+Rick+G%3BThomasson%2C+Robert+L%3BHanson%2C+Jim%3BCapuano%2C+Louis+E%2C+Jr%3BSchochet%2C+Daniel%3BLivesay%2C+Bill%3BPage%2C+Terrence%3BLovekin%2C+James+W%3BJohnson%2C+Stephen+E&rft.aulast=Nimz&rft.aufirst=Gregory&rft.date=1999-01-01&rft.volume=23&rft.issue=&rft.spage=333&rft.isbn=&rft.btitle=&rft.title=Transactions+-+Geothermal+Resources+Council&rft.issn=01935933&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Global Resources Council 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 15 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; artesian waters; C-14; carbon; carbonate rocks; Cenozoic; Churchill County Nevada; dates; Dixie Valley; Dixie Valley Field; geothermal fields; granites; granodiorites; ground water; Holocene; Humboldt Salt Marsh; hydrology; igneous rocks; isotope ratios; isotopes; mafic composition; mixing; Nevada; O-18/O-16; oxygen; plutonic rocks; Quaternary; radioactive isotopes; recharge; sedimentary rocks; springs; stable isotopes; Stillwater Fault; United States; water; water-rock interaction ER - TY - JOUR T1 - Preliminary evaluation of geothermal potential at the Cheyenne River Sioux Reservation, South Dakota AN - 51208339; 2000-053027 AB - A geochemical investigation of well waters from the Cheyenne River Sioux Reservation in South Dakota revealed considerable diversity in the chemistry of the fluids and indicated that waters from the Dakota Formation were the best candidates for direct-use geothermal applications. Geothermometry calculations for all wells suggest that formation temperatures are <90 degrees C. Potential scaling problems from utilization of the waters would most likely be restricted to carbonate scale and could be offset by maintaining CO (sub 2) gas in solution. JF - Transactions - Geothermal Resources Council AU - Bergfeld, Deborah AU - Bruton, Carol AU - Goff, Fraser AU - Counce, Dale AU - Johnson, Stuart D AU - Allis, Rick G AU - Thomasson, Robert L AU - Hanson, Jim AU - Capuano, Louis E, Jr AU - Schochet, Daniel AU - Livesay, Bill AU - Page, Terrence AU - Lovekin, James W AU - Johnson, Stephen E Y1 - 1999 PY - 1999 DA - 1999 SP - 453 EP - 459 PB - GRC - Geothermal Resources Council, Davis, CA VL - 23 SN - 0193-5933, 0193-5933 KW - United States KW - geologic thermometry KW - Ziebach County South Dakota KW - solutions KW - Cretaceous KW - ground water KW - exploration KW - carbon dioxide KW - artesian waters KW - geochemical surveys KW - Cheyenne River Sioux Reservation KW - geochemistry KW - pH KW - Eh KW - hydrochemistry KW - Mesozoic KW - thermal waters KW - gases KW - geothermal energy KW - geothermal fields KW - geochemical methods KW - Dakota Formation KW - surveys KW - Dewey County South Dakota KW - Indian reservations KW - South Dakota KW - 29A:Economic geology, geology of energy sources KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51208339?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+-+Geothermal+Resources+Council&rft.atitle=Preliminary+evaluation+of+geothermal+potential+at+the+Cheyenne+River+Sioux+Reservation%2C+South+Dakota&rft.au=Bergfeld%2C+Deborah%3BBruton%2C+Carol%3BGoff%2C+Fraser%3BCounce%2C+Dale%3BJohnson%2C+Stuart+D%3BAllis%2C+Rick+G%3BThomasson%2C+Robert+L%3BHanson%2C+Jim%3BCapuano%2C+Louis+E%2C+Jr%3BSchochet%2C+Daniel%3BLivesay%2C+Bill%3BPage%2C+Terrence%3BLovekin%2C+James+W%3BJohnson%2C+Stephen+E&rft.aulast=Bergfeld&rft.aufirst=Deborah&rft.date=1999-01-01&rft.volume=23&rft.issue=&rft.spage=453&rft.isbn=&rft.btitle=&rft.title=Transactions+-+Geothermal+Resources+Council&rft.issn=01935933&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Global Resources Council 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 20 N1 - PubXState - CA N1 - Document feature - illus. incl. sect., 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - artesian waters; carbon dioxide; Cheyenne River Sioux Reservation; Cretaceous; Dakota Formation; Dewey County South Dakota; Eh; exploration; gases; geochemical methods; geochemical surveys; geochemistry; geologic thermometry; geothermal energy; geothermal fields; ground water; hydrochemistry; Indian reservations; Mesozoic; pH; solutions; South Dakota; surveys; thermal waters; United States; Ziebach County South Dakota ER - TY - JOUR T1 - Downhole seismic monitoring at The Geysers AN - 51201529; 2000-053005 AB - A 500-ft length, 6-level, 3-component, vertical geophone array was permanently deployed within the upper 800 ft of Unocal's well GDCF 63-29 during a plug and abandonment operation on April 7, 1998. Wellbore casing deformation has been observed in wells near the study area including the GDCF 63-29 well. An objective of the study was to determine if shallow deformation at The Geysers manifests itself seismically. The downhole array remains partially operational after a period of one year, at a maximum downhole temperature of about 150 degrees C. In late 1998 and early 1999, the array was supplemented with four surface stations to help constrain locations of shallow seismicity. Event locations occurring within about 3000 ft ( approximately 1 km) of the array have been determined for a subset of high-frequency events simultaneously detected on the downhole and surface stations for the 10-week period January 6 to March 16, 1999. These events are distinct from surface-monitored seismicity at The Geysers in that they occur predominantly above the producing reservoir, at depths ranging from about 700 to 3500 ft (1950 to -850 ft elevation). The shallow microseismicity tends to be episodic, with relatively quiescent periods of up to three weeks occurring between swarms. Event locations show a northeast-striking trend, similar to seismicity trends mapped deeper in the reservoir, and parallel to the strike of the predominant surface lineaments observed over the productive field. Documented casing failure in the monitor well is associated with a shallow zone of seismicity. Composite fault-plane solutions and the hypocenter trends suggest the wellbore deformation is associated with oblique reverse faulting along zones of steeply dipping fractures striking northeast. JF - Transactions - Geothermal Resources Council AU - Rutledge, J T AU - Anderson, T D AU - Fairbanks, T D AU - Albright, J N AU - Johnson, Stuart D AU - Allis, Rick G AU - Thomasson, Robert L AU - Hanson, Jim AU - Capuano, Louis E, Jr AU - Schochet, Daniel AU - Livesay, Bill AU - Page, Terrence AU - Lovekin, James W AU - Johnson, Stephen E Y1 - 1999 PY - 1999 DA - 1999 SP - 295 EP - 299 PB - GRC - Geothermal Resources Council, Davis, CA VL - 23 SN - 0193-5933, 0193-5933 KW - United States KW - geophones KW - monitoring KW - well-logging KW - geophysical methods KW - downhole methods KW - reverse faults KW - temperature KW - seismic methods KW - California KW - geothermal fields KW - fractures KW - strike KW - geothermal reservoirs KW - The Geysers KW - dip KW - naturally fractured reservoirs KW - microseisms KW - faults KW - arrays KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51201529?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+-+Geothermal+Resources+Council&rft.atitle=Downhole+seismic+monitoring+at+The+Geysers&rft.au=Rutledge%2C+J+T%3BAnderson%2C+T+D%3BFairbanks%2C+T+D%3BAlbright%2C+J+N%3BJohnson%2C+Stuart+D%3BAllis%2C+Rick+G%3BThomasson%2C+Robert+L%3BHanson%2C+Jim%3BCapuano%2C+Louis+E%2C+Jr%3BSchochet%2C+Daniel%3BLivesay%2C+Bill%3BPage%2C+Terrence%3BLovekin%2C+James+W%3BJohnson%2C+Stephen+E&rft.aulast=Rutledge&rft.aufirst=J&rft.date=1999-01-01&rft.volume=23&rft.issue=&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=Transactions+-+Geothermal+Resources+Council&rft.issn=01935933&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Global Resources Council 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 20 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arrays; California; dip; downhole methods; faults; fractures; geophones; geophysical methods; geothermal fields; geothermal reservoirs; microseisms; monitoring; naturally fractured reservoirs; reverse faults; seismic methods; strike; temperature; The Geysers; United States; well-logging ER - TY - JOUR T1 - The Rio Grande Rift; a geological and geophysical overview AN - 51022815; 1999-070793 AB - The Rio Grande rift is a major structural element of the Southern Rocky Mountain region. During the last 20 years this feature has become widely recognized as a major Cenozoic continental rift zone. During this time we have learned much about the structure and evolution of the rift. However, many gaps in our knowledge remain that prevent us from fully understanding its evolution and the processes that formed it. The rift should not be studied in isolation, because the Laramide orogeny, uplift, complex magmatism, and extension that have occurred since the Late Cretaceous are all to some extent related. JF - Rocky Mountain Geology AU - Keller, G Randy AU - Baldridge, W Scott A2 - Karlstrom, Karl E. Y1 - 1999 PY - 1999 DA - 1999 SP - 121 EP - 130 PB - University of Wyoming, Dept. of Geology and Geophysics, Laramie, WY VL - 34 IS - 1 SN - 1555-7332, 1555-7332 KW - United States KW - processes KW - North America KW - rift zones KW - lithosphere KW - magmatism KW - uplifts KW - New Mexico KW - Laramide Orogeny KW - extension tectonics KW - Mohorovicic discontinuity KW - Rio Grande Rift KW - models KW - Cenozoic KW - Southern Rocky Mountains KW - tectonics KW - Rocky Mountains KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51022815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Rocky+Mountain+Geology&rft.atitle=The+Rio+Grande+Rift%3B+a+geological+and+geophysical+overview&rft.au=Keller%2C+G+Randy%3BBaldridge%2C+W+Scott&rft.aulast=Keller&rft.aufirst=G&rft.date=1999-01-01&rft.volume=34&rft.issue=1&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Rocky+Mountain+Geology&rft.issn=15557332&rft_id=info:doi/ L2 - http://rmg.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 58 N1 - PubXState - WY N1 - Document feature - illus. incl. sects., sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - WUGGAO N1 - SubjectsTermNotLitGenreText - Cenozoic; crust; extension tectonics; Laramide Orogeny; lithosphere; magmatism; models; Mohorovicic discontinuity; New Mexico; North America; processes; rift zones; Rio Grande Rift; Rocky Mountains; Southern Rocky Mountains; tectonics; United States; uplifts ER - TY - JOUR T1 - Watershed management planning using the data quality objective process AN - 50907491; 2001-016953 JF - Technical Publication Series - American Water Resources Association AU - Nylander, Charles L AU - Bitner, Kelly A AU - Hull, Kevin AU - Johnson, Ada S A2 - Sakrison, Rodney A2 - Sturtevant, Peter Y1 - 1999 PY - 1999 DA - 1999 SP - 205 EP - 208 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 99-4 SN - 0731-9789, 0731-9789 KW - United States KW - processes KW - water quality KW - planning KW - Santa Fe New Mexico KW - drainage KW - water management KW - Santa Fe County New Mexico KW - pollution KW - New Mexico KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50907491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Watershed+management+planning+using+the+data+quality+objective+process&rft.au=Nylander%2C+Charles+L%3BBitner%2C+Kelly+A%3BHull%2C+Kevin%3BJohnson%2C+Ada+S&rft.aulast=Nylander&rft.aufirst=Charles&rft.date=1999-01-01&rft.volume=99-4&rft.issue=&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 1999 annual water resources conference; Watershed management to protect declining species N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 4 N1 - PubXState - MD N1 - Document feature - 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - drainage; New Mexico; planning; pollution; processes; Santa Fe County New Mexico; Santa Fe New Mexico; United States; water management; water quality; water resources ER - TY - JOUR T1 - Volcanic emission of metals matches metals in old Antarctic ice AN - 50429117; 2001-013183 AB - It has long been a geochemical problem that trace metals are present in the atmospheric load and deposition material in excess of what can be accounted for by the lattices of minerals in dust, and sea salts, that are available to the atmosphere. By measuring the trace metals Pb, In, Cd, and Tl, and a suite of rock- and salt-forming metals directly, by sensitive, precise methods, in the same samples of ice in the Taylor Dome ice core (Antarctica), we show that trace metals are indeed more abundant than can be supplied by dust and salt throughout ice representing 75 ky of time. Only a few percent of the trace metals can ever have been provided by dust or salt.Our new estimate of emission of metals by volcanoes, different from the widely-cited estimate of Nriagu (1989), gives an annual mass of about 10,000 tons of trace metals, compared to Nriagu's 28,000 tons. The proportions of metals are also different. The volcanic emission source can supply the metals measured in the ice. The basis for this match is that (1) annual amounts of trace metals, (2) proportions of trace metals, and (3) the isotopic composition of Pb, are nearly the same in both ice and volcanic emissions. Previous studies (e.g., Boutron et al., 1987) have claimed that volcano emissions could contribute only a small fraction of the trace metal excess, and that dusts were the main pre-industrial source. But those studies used proxy indicators for volcanic activity (sulfur) and dust (Ca), measured by others, and in different samples of ice. The values used for metal-to-sulfur ratios in volcano emissions were more than an order of magnitude different from our values. Also, Pb isotopic measurements have not previously been routinely made on bulk samples of polar ice. JF - Abstracts with Programs - Geological Society of America AU - Hinkley, Todd K AU - Matsumoto, Akikazu AU - Lamothe, Paul J AU - Wilson, Stephen A AU - Finnegan, David L AU - Gerlach, Terrence M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 219 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - calcium KW - alkaline earth metals KW - ice cores KW - Taylor Dome KW - clastic sediments KW - lead KW - atmosphere KW - Antarctica KW - thallium KW - indium KW - deposition KW - metals KW - dust KW - sediments KW - cadmium KW - volcanoes KW - Victoria Land KW - sulfur KW - trace metals KW - geochemistry KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50429117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Volcanic+emission+of+metals+matches+metals+in+old+Antarctic+ice&rft.au=Hinkley%2C+Todd+K%3BMatsumoto%2C+Akikazu%3BLamothe%2C+Paul+J%3BWilson%2C+Stephen+A%3BFinnegan%2C+David+L%3BGerlach%2C+Terrence+M%3BAnonymous&rft.aulast=Hinkley&rft.aufirst=Todd&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Antarctica; atmosphere; cadmium; calcium; clastic sediments; deposition; dust; geochemistry; ice cores; indium; lead; metals; sediments; sulfur; Taylor Dome; thallium; trace metals; Victoria Land; volcanoes ER - TY - JOUR T1 - The ash problem; hydrodynamic versus brittle fragmentation AN - 50394768; 2009-068478 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Zimanowski, Bernd AU - Buettner, Ralf AU - Caffier, Ines AU - Wohletz, Kenneth AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 167 PB - IUGG, [location varies] VL - 99, Week B KW - fragmentation KW - volcanic rocks KW - igneous rocks KW - brittle deformation KW - relaxation KW - fluid dynamics KW - deformation KW - explosive eruptions KW - pyroclastics KW - viscosity KW - volcanism KW - magmas KW - volcanic ash KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50394768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=The+ash+problem%3B+hydrodynamic+versus+brittle+fragmentation&rft.au=Zimanowski%2C+Bernd%3BBuettner%2C+Ralf%3BCaffier%2C+Ines%3BWohletz%2C+Kenneth%3BAnonymous&rft.aulast=Zimanowski&rft.aufirst=Bernd&rft.date=1999-01-01&rft.volume=99%2C+Week+B&rft.issue=&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - brittle deformation; deformation; explosive eruptions; fluid dynamics; fragmentation; igneous rocks; magmas; pyroclastics; relaxation; viscosity; volcanic ash; volcanic rocks; volcanism ER - TY - JOUR T1 - Magma fragmentation during the plinian phase of the Minoan eruption (Santorini, Greece), as inferred by deposit features and pyroclast textures AN - 50394401; 2009-068499 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Taddeucci, Jacopo AU - Wohletz, Kenneth AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 170 PB - IUGG, [location varies] VL - 99, Week B KW - Minoan Tephra KW - fragmentation KW - volcanic rocks KW - Greece KW - textures KW - igneous rocks KW - Santorin KW - plinian-type eruptions KW - Europe KW - Aegean Islands KW - Southern Europe KW - pyroclastics KW - transport KW - magmas KW - eruptions KW - pumice KW - volcanoes KW - Cyclades KW - Greek Aegean Islands KW - Mediterranean region KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50394401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Magma+fragmentation+during+the+plinian+phase+of+the+Minoan+eruption+%28Santorini%2C+Greece%29%2C+as+inferred+by+deposit+features+and+pyroclast+textures&rft.au=Taddeucci%2C+Jacopo%3BWohletz%2C+Kenneth%3BAnonymous&rft.aulast=Taddeucci&rft.aufirst=Jacopo&rft.date=1999-01-01&rft.volume=99%2C+Week+B&rft.issue=&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - Aegean Islands; Cyclades; eruptions; Europe; fragmentation; Greece; Greek Aegean Islands; igneous rocks; magmas; Mediterranean region; Minoan Tephra; plinian-type eruptions; pumice; pyroclastics; Santorin; Southern Europe; textures; transport; volcanic rocks; volcanoes ER - TY - JOUR T1 - Elastic nonlinearity and slow dynamics in rocks AN - 50391823; 2009-070458 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - TenCate, James A AU - Smith, Eric AU - Byers, Loren W AU - Shankland, Thomas J AU - Johnson, Paul A AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 174 PB - IUGG, [location varies] VL - 99, Week A KW - experimental studies KW - elasticity KW - strain KW - nonlinear distortion KW - structural analysis KW - stiffness KW - damage KW - mechanism KW - elastic constants KW - conditioning KW - recovery KW - dynamics KW - slow dynamics KW - rocks KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50391823?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Elastic+nonlinearity+and+slow+dynamics+in+rocks&rft.au=TenCate%2C+James+A%3BSmith%2C+Eric%3BByers%2C+Loren+W%3BShankland%2C+Thomas+J%3BJohnson%2C+Paul+A%3BAnonymous&rft.aulast=TenCate&rft.aufirst=James&rft.date=1999-01-01&rft.volume=99%2C+Week+A&rft.issue=&rft.spage=174&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2014-03-14 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - conditioning; damage; dynamics; elastic constants; elasticity; experimental studies; mechanism; nonlinear distortion; recovery; rocks; slow dynamics; stiffness; strain; structural analysis ER - TY - JOUR T1 - Stresses in a subducting slab in the presence of a metastable olivine AN - 50391592; 2009-070435 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Wedge, J P AU - Devaux, L Fleitout AU - Schubert, G AU - Anderson, C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 171 PB - IUGG, [location varies] VL - 99, Week A KW - silicates KW - stress KW - spinel KW - mechanism KW - olivine group KW - subduction KW - equations KW - viscoelasticity KW - buoyancy KW - nesosilicates KW - finite element analysis KW - plate tectonics KW - viscosity KW - seismicity KW - rheology KW - olivine KW - slabs KW - orthosilicates KW - oxides KW - geophysics KW - 18:Solid-earth geophysics KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50391592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Stresses+in+a+subducting+slab+in+the+presence+of+a+metastable+olivine&rft.au=Wedge%2C+J+P%3BDevaux%2C+L+Fleitout%3BSchubert%2C+G%3BAnderson%2C+C%3BAnonymous&rft.aulast=Wedge&rft.aufirst=J&rft.date=1999-01-01&rft.volume=99%2C+Week+A&rft.issue=&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - buoyancy; equations; finite element analysis; geophysics; mechanism; nesosilicates; olivine; olivine group; orthosilicates; oxides; plate tectonics; rheology; seismicity; silicates; slabs; spinel; stress; subduction; viscoelasticity; viscosity ER - TY - JOUR T1 - 1969 Mariner Mars IRS thermal infrared spectra of the dark side of Mars AN - 50311164; 2001-048091 AB - Thermal infrared spectra of the martian night side have advantages over day spectra for examining the aerosol dust mineralogy because they contain weaker atmospheric gas and surface features. We will present and discuss IRS night spectra. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kirkland, L E AU - Herr, K C AU - McAfee, John M AU - Salisbury, J W AU - Forney, Paul B AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1687 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - hydrology KW - surface properties KW - Mars KW - infrared spectra KW - gases KW - terrestrial planets KW - planets KW - ice KW - Mariner Program KW - thermal emission KW - aerosols KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50311164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=1969+Mariner+Mars+IRS+thermal+infrared+spectra+of+the+dark+side+of+Mars&rft.au=Kirkland%2C+L+E%3BHerr%2C+K+C%3BMcAfee%2C+John+M%3BSalisbury%2C+J+W%3BForney%2C+Paul+B%3BAnonymous&rft.aulast=Kirkland&rft.aufirst=L&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerosols; gases; hydrology; ice; infrared spectra; Mariner Program; Mars; planets; spectra; surface properties; terrestrial planets; thermal emission ER - TY - JOUR T1 - Mixed hydrothermal fluids and the origin of the Martian soil; a new quantitative model AN - 50310938; 2001-042563 AB - A combination of neutral-chloride hydrothermal fluids (providing Cl) and acid-sulfate fluids (providing S) can quantitatively explain the abundances of S, Cl, and other mobile elements in the soil, but not the Fe in soil magnetic minerals. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Newsom, H E AU - Hagerty, J J AU - Goff, F AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1262 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - soils KW - chlorine KW - sulfate ion KW - halogens KW - Mars KW - fluid phase KW - hydrothermal conditions KW - geochemical cycle KW - terrestrial planets KW - models KW - planets KW - quantitative analysis KW - chloride ion KW - volcanism KW - sulfur KW - aerosols KW - chemical composition KW - mobility KW - geochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50310938?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mixed+hydrothermal+fluids+and+the+origin+of+the+Martian+soil%3B+a+new+quantitative+model&rft.au=Newsom%2C+H+E%3BHagerty%2C+J+J%3BGoff%2C+F%3BAnonymous&rft.aulast=Newsom&rft.aufirst=H&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerosols; chemical composition; chloride ion; chlorine; fluid phase; geochemical cycle; geochemistry; halogens; hydrothermal conditions; Mars; mobility; models; planets; quantitative analysis; soils; sulfate ion; sulfur; terrestrial planets; volcanism ER - TY - JOUR T1 - Quantitative elemental analyses at stand-off distances; development of a prototype instrument for the Mars rover program AN - 50305606; 2001-048106 AB - As part of the Mars Instrument Development Program, an instrument based on laser-induced breakdown spectroscopy (LIBS) is under development for stand-off (20 meters) elemental analysis of soil and rock samples. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Knight, A K AU - Scherbarth, N L AU - Cremers, D A AU - Ferris, M J AU - Wiens, R C AU - Blacic, J D AU - Nordholt, J E AU - Calvin, W M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1018 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - experimental studies KW - chemical analysis KW - laser methods KW - detection limit KW - Mars KW - rovers KW - trace-element analyses KW - terrestrial planets KW - planets KW - laboratory studies KW - spectroscopy KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50305606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Quantitative+elemental+analyses+at+stand-off+distances%3B+development+of+a+prototype+instrument+for+the+Mars+rover+program&rft.au=Knight%2C+A+K%3BScherbarth%2C+N+L%3BCremers%2C+D+A%3BFerris%2C+M+J%3BWiens%2C+R+C%3BBlacic%2C+J+D%3BNordholt%2C+J+E%3BCalvin%2C+W+M%3BAnonymous&rft.aulast=Knight&rft.aufirst=A&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical analysis; detection limit; experimental studies; instruments; laboratory studies; laser methods; Mars; planets; rovers; spectroscopy; terrestrial planets; trace-element analyses ER - TY - JOUR T1 - Scientific investigations on the elemental composition of Mars by means of the Mars Surveyor 2001 gamma-ray spectrometer AN - 50305481; 2001-048102 AB - The Mars Surveyor 2001 Gamma-Ray Spectrometer will map the elemental composition of the surface of Mars. This work describes the instrument. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Boynton, W V AU - d'Uston, C AU - Arnold, J R AU - Trombka, J I AU - Feldman, W C AU - Mitrofanov, I AU - Englert, P A J AU - Metzger, A E AU - Reedy, Robert C AU - Squyres, S W AU - Waenke, H AU - Bailey, S H AU - Brueckner, J AU - Evans, L G AU - Starr, R AU - Fellows, C W AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1991 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - terrestrial planets KW - planets KW - objectives KW - Mars Global Surveyor Program KW - gamma-ray spectroscopy KW - Mars KW - chemical composition KW - spectroscopy KW - regolith KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50305481?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Scientific+investigations+on+the+elemental+composition+of+Mars+by+means+of+the+Mars+Surveyor+2001+gamma-ray+spectrometer&rft.au=Boynton%2C+W+V%3Bd%27Uston%2C+C%3BArnold%2C+J+R%3BTrombka%2C+J+I%3BFeldman%2C+W+C%3BMitrofanov%2C+I%3BEnglert%2C+P+A+J%3BMetzger%2C+A+E%3BReedy%2C+Robert+C%3BSquyres%2C+S+W%3BWaenke%2C+H%3BBailey%2C+S+H%3BBrueckner%2C+J%3BEvans%2C+L+G%3BStarr%2C+R%3BFellows%2C+C+W%3BAnonymous&rft.aulast=Boynton&rft.aufirst=W&rft.date=1999-01-01&rft.volume=30&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical composition; gamma-ray spectroscopy; instruments; Mars; Mars Global Surveyor Program; objectives; planets; regolith; spectroscopy; terrestrial planets ER - TY - JOUR T1 - Utilizing night spectra of Mars for mineralogy AN - 50299223; 2002-070509 JF - LPI Contribution AU - Kirkland, L E AU - Herr, K C AU - McAfee, J M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstract 6186 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - Thermal Infrared Multispectral Scanner KW - terrestrial planets KW - planets KW - technology KW - mineral composition KW - Mars KW - spectra KW - Martian atmosphere KW - emissivity KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50299223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Utilizing+night+spectra+of+Mars+for+mineralogy&rft.au=Kirkland%2C+L+E%3BHerr%2C+K+C%3BMcAfee%2C+J+M%3BAnonymous&rft.aulast=Kirkland&rft.aufirst=L&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international conference on Mars N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - emissivity; Mars; Martian atmosphere; mineral composition; observations; planets; spectra; technology; terrestrial planets; Thermal Infrared Multispectral Scanner ER - TY - JOUR T1 - Development of a prototype instrument for stand-off elemental analysis for use on a Mars Rover AN - 50294866; 2002-070389 JF - LPI Contribution AU - Knight, A K AU - Cremers, D A AU - Ferris, M J AU - Scherbarth, N L AU - Wiens, Roger C AU - Blacic, J D AU - Calvin, W M AU - Nordholt, J E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstract 6064 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - terrestrial planets KW - soils KW - planets KW - Mars Rover KW - laser-induced breakdown spectroscopy KW - laser methods KW - Mars Instrument Development Program KW - Mars KW - Martian atmosphere KW - instruments KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50294866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Development+of+a+prototype+instrument+for+stand-off+elemental+analysis+for+use+on+a+Mars+Rover&rft.au=Knight%2C+A+K%3BCremers%2C+D+A%3BFerris%2C+M+J%3BScherbarth%2C+N+L%3BWiens%2C+Roger+C%3BBlacic%2C+J+D%3BCalvin%2C+W+M%3BNordholt%2C+J+E%3BAnonymous&rft.aulast=Knight&rft.aufirst=A&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international conference on Mars N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - instruments; laser methods; laser-induced breakdown spectroscopy; Mars; Mars Instrument Development Program; Mars Rover; Martian atmosphere; observations; planets; soils; terrestrial planets ER - TY - JOUR T1 - An approach to 3D model of pyroclastic flow dynamics and its application to the Azufral River channel at Galeras Volcano, Colombia AN - 50237160; 2009-068515 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Cordoba, Gustavo AU - Rutschmann, Peter AU - Valentine, Greg AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 172 PB - IUGG, [location varies] VL - 99, Week B KW - Andes KW - geologic hazards KW - three-dimensional models KW - prediction KW - Colombia KW - Galeras KW - Azufral River KW - finite element analysis KW - South America KW - pyroclastic flows KW - dynamics KW - eruptions KW - volcanoes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50237160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=An+approach+to+3D+model+of+pyroclastic+flow+dynamics+and+its+application+to+the+Azufral+River+channel+at+Galeras+Volcano%2C+Colombia&rft.au=Cordoba%2C+Gustavo%3BRutschmann%2C+Peter%3BValentine%2C+Greg%3BAnonymous&rft.aulast=Cordoba&rft.aufirst=Gustavo&rft.date=1999-01-01&rft.volume=99%2C+Week+B&rft.issue=&rft.spage=172&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - Andes; Azufral River; Colombia; dynamics; eruptions; finite element analysis; Galeras; geologic hazards; prediction; pyroclastic flows; South America; three-dimensional models; volcanoes ER - TY - JOUR T1 - The age of Lathrop Wells volcanic center; an (super 40) Ar/ (super 39) Ar dating investigation AN - 50160559; 2000-032596 AB - The (super 40) Ar/ (super 39) Ar age spectrum analyses of basalt whole rock and partially degassed sanidine xenocrysts for the Lathrop Wells volcanic center, Nevada, yield eruption ages of 77.3 + or - 6.0 and 76.6 + or - 4.9 ka (2sigma ) for the Ql (sub 1) and Ql (sub 2) flows, respectively. Basaltic samples were analyzed in four to six replicate runs and yield normally distributed plateau ages. Miocene ash flow tuff xenoliths were collected from the basaltic units with the majority of samples coming from the Ql (sub 2) . The sanidines from the Ql (sub 2) xenoliths yielded apparent plateau ages (n = 10) ranging from 69 + or - 17 to 309 + or - 11 ka with a strong cluster (n = 6) at approximately 77 ka. Because the diffusion dimension of sanidine is approximated by the physical crystal size, cracking of the sanidine following the development of an argon concentration profile may result in complex argon age spectra. Experimental studies exploring the natural and laboratory argon systematics of degassed sanidine reveal that crystal breakage and HF acid etching lead to anomalously old apparent ages. These new ages for the Ql (sub 1) and Ql (sub 2) flows are analytically indistinguishable and agree well with published eruption ages determined by (super 3) He and (super 36) Cl cosmogenic surface exposure dating methods. We conclude that the Ql (sub 1) and Ql (sub 2) flows are temporally equivalent. Additionally, the agreement between our eruption ages for these units and the published 76 + or - 20 ka [Zreda et al., 1993] (super 36) Cl exposure age for the Lathrop Wells scoria cone (Qs (sub 3) ) suggests that the cone may be temporally equivalent to the Ql (sub 1) and Ql (sub 2) flows. We believe the simplest and most reasonable interpretation is that the volcanic center is monogenetic. Copyright 1999 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Heizler, Matthew T AU - Perry, Frank V AU - Crowe, Bruce M AU - Peters, Lisa AU - Appelt, Robert Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 767 EP - 804 PB - American Geophysical Union, Washington, DC VL - 104 IS - B1 SN - 0148-0227, 0148-0227 KW - United States KW - isotopes KW - halogens KW - waste disposal sites KW - He-3 KW - exposure age KW - stable isotopes KW - upper Pleistocene KW - Cenozoic KW - Nevada Test Site KW - volcanic features KW - radioactive isotopes KW - dates KW - noble gases KW - absolute age KW - helium KW - Yucca Mountain KW - Nevada KW - chlorine KW - Ar/Ar KW - Lathrop Wells volcanic center KW - Quaternary KW - Cl-36 KW - prediction KW - volcanic centers KW - Nye County Nevada KW - volcanic risk KW - eruptions KW - Pleistocene KW - xenocrysts KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50160559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+age+of+Lathrop+Wells+volcanic+center%3B+an+%28super+40%29+Ar%2F+%28super+39%29+Ar+dating+investigation&rft.au=Heizler%2C+Matthew+T%3BPerry%2C+Frank+V%3BCrowe%2C+Bruce+M%3BPeters%2C+Lisa%3BAppelt%2C+Robert&rft.aulast=Heizler&rft.aufirst=Matthew&rft.date=1999-01-01&rft.volume=104&rft.issue=B1&rft.spage=767&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F1998JB900002 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. 8 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Ar/Ar; Cenozoic; chlorine; Cl-36; dates; eruptions; exposure age; halogens; He-3; helium; isotopes; Lathrop Wells volcanic center; Nevada; Nevada Test Site; noble gases; Nye County Nevada; Pleistocene; prediction; Quaternary; radioactive isotopes; stable isotopes; United States; upper Pleistocene; volcanic centers; volcanic features; volcanic risk; waste disposal sites; xenocrysts; Yucca Mountain DO - http://dx.doi.org/10.1029/1998JB900002 ER - TY - JOUR T1 - Carbon-enhanced electrical conductivity during fracture of rocks AN - 50158413; 2000-032594 AB - Changes in electrical resistance during rock fracture in the presence of a carbonaceous atmosphere have been investigated using Nugget sandstone and Westerly granite. The experiments were performed in an internally heated, gas-pressure vessel with a load train that produced strain rates between 10 (super -6) and 10 (super -5) s (super -1) . Samples were deformed at temperatures of 354 degrees to 502 degrees C and pressures of 100 to 170 MPa in atmospheres of Ar or mixtures of 95% CO (sub 2) with 5% CO or 5% CH (sub 4) , compositions that are well within the field of graphite stability at the run conditions. In experiments using Nugget sandstone, resistance reached a minimum value when the maximum temperature was achieved and good electrode contact was made. The resistance then increased as the experiment continued, probably due to dry out of the sample, a change in the oxidation state of the Fe-oxide associated with the cement, or destruction of current-bearing pathways. At approximately 200-MPa end load, the rock sample failed. Plots of load and resistance versus time show several interesting features. In one experiment, for example, as the end load reached about 175 MPa, resistance stopped increasing and remained fairly constant for a period of approximately 0.5 hour. During loading, the end load displayed small decreases that were simultaneous with small decreases in resistance; when the end load (and the displacement) indicated rock failure, resistance decreased dramatically, from approximately 150 MOmega to 100 MOmega . In a single experiment, the Westerly granite also showed a decrease in resistance during dilatancy. The nature and distribution of carbon in the run products were studied by electron microprobe and time-of-flight secondary-ion mass spectroscopy (TOP-SIMS). Carbon observed by mapping with the former is clearly observed on micro-cracks that, based on the microtexture, are interpreted to have formed during the deformation. The TOF-SIMS data confirm the electron-probe observations that carbon is present on fracture surfaces. These observations and experimental results lead to the hypothesis that as microfractures open in the time leading up to failure along a fracture, carbon is deposited as a continuous film on the new, reactive mineral surfaces, and this produces a decrease in resistance. Subsequent changes in resistance occur as connectivity of the initial fracture network is altered by continued deformation. Such a process may explain some electromagnetic effects associated with earthquakes. Copyright 1999 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Roberts, J J AU - Duba, A G AU - Mathez, E A AU - Shankland, T J AU - Kinzler, R Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 737 EP - 747 PB - American Geophysical Union, Washington, DC VL - 104 IS - B1 SN - 0148-0227, 0148-0227 KW - United States KW - electrical conductivity KW - Westerly Granite KW - Rhode Island KW - Pennsylvanian KW - igneous rocks KW - granites KW - sandstone KW - fracturing KW - simulation KW - rock mechanics KW - electron probe data KW - laboratory studies KW - sedimentary rocks KW - plutonic rocks KW - mineral composition KW - carbon KW - geochemistry KW - faults KW - bedrock KW - failures KW - experimental studies KW - pressure KW - Jurassic KW - Paleozoic KW - Carboniferous KW - deformation KW - Mesozoic KW - gases KW - ultrastructure KW - Lower Jurassic KW - electromagnetic field KW - Nugget Sandstone KW - earthquakes KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50158413?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Carbon-enhanced+electrical+conductivity+during+fracture+of+rocks&rft.au=Roberts%2C+J+J%3BDuba%2C+A+G%3BMathez%2C+E+A%3BShankland%2C+T+J%3BKinzler%2C+R&rft.aulast=Roberts&rft.aufirst=J&rft.date=1999-01-01&rft.volume=104&rft.issue=B1&rft.spage=737&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F1998JB900032 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 43 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bedrock; carbon; Carboniferous; clastic rocks; deformation; earthquakes; electrical conductivity; electromagnetic field; electron probe data; experimental studies; failures; faults; fracturing; gases; geochemistry; granites; igneous rocks; Jurassic; laboratory studies; Lower Jurassic; Mesozoic; mineral composition; Nugget Sandstone; Paleozoic; Pennsylvanian; plutonic rocks; pressure; Rhode Island; rock mechanics; sandstone; sedimentary rocks; simulation; ultrastructure; United States; Westerly Granite DO - http://dx.doi.org/10.1029/1998JB900032 ER - TY - JOUR T1 - Characterizing hydraulic fracture behaviour using microseismicity AN - 50114219; 2010-005215 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Urbancic, T I AU - Trifu, C I AU - Shumila, V AU - Rutledge, J T AU - Zinno, R J AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - A151 EP - A152 PB - IUGG, [location varies] VL - 99, WEEK A KW - United States KW - hydraulic fracturing KW - failures KW - Bolton Valley KW - b-values KW - magnitude KW - injection KW - Texas KW - frequency KW - spatial variations KW - seismicity KW - East Texas KW - induced earthquakes KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50114219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Characterizing+hydraulic+fracture+behaviour+using+microseismicity&rft.au=Urbancic%2C+T+I%3BTrifu%2C+C+I%3BShumila%2C+V%3BRutledge%2C+J+T%3BZinno%2C+R+J%3BAnonymous&rft.aulast=Urbancic&rft.aufirst=T&rft.date=1999-01-01&rft.volume=99%2C+WEEK+A&rft.issue=&rft.spage=A151&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - b-values; Bolton Valley; earthquakes; East Texas; failures; frequency; hydraulic fracturing; induced earthquakes; injection; magnitude; seismicity; spatial variations; Texas; United States ER - TY - JOUR T1 - Design and use of redox-recyclable organometallic extractants for the cationic radionuclides 137-Cs(I) and 90-Sr(II) from waste solutions AN - 17689633; 4817269 AB - Two new redox-active organometallic extractants for the redox-recyclable extraction and recovery of the nucleotides caesium-137 and strontium-90 were investigated. When diluted with toluene or xylenes, they extracted caesium from aqueous waste simulants with D (caesium) values of 5-20; D (strontium) values were below 0.04. The addition of polyethyleneglycol as a co-diluent increased D (strontium) values up to 33 but decreased D (caesium) values by a factor of 2-10. The extractant-containing organic phase released more than 88 per cent of its radioactivity in the form of a solid precipitate when separated from the raffinate and exposed to air. In the presence of a small quantity of water, more than 99 per cent of the radioactivity was released. JF - Environmental Science & Technology AU - Clark, J F AU - Chamberlin, R M AU - Abney, K D AU - Strauss, SH AD - Los Alamos National Laboratory, N. Mex. Y1 - 1999 PY - 1999 DA - 1999 SP - 2489 EP - 2491 VL - 33 IS - 14 SN - 0013-936X, 0013-936X KW - Organometallic compounds (s a individual metals) KW - Raffinate KW - Reduction KW - Strontium KW - Aqualine Abstracts KW - Heavy metals KW - Caesium KW - Solid state KW - Xylenes KW - Radioactive isotopes (see also Individual names) KW - Modelling (-general-) KW - Air KW - Nucleotides KW - Water KW - Dilution KW - Caesium (Radioactive) KW - USA KW - Polyethylene glycols KW - Recovery KW - Precipitation (Chemical) KW - Cationic KW - Extractant KW - Organic KW - Radioactivity KW - Separation (see also Individual processes) KW - Toluene (see also Methylbenzenes) KW - Wastewater KW - AQ 00007:Industrial Effluents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17689633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Design+and+use+of+redox-recyclable+organometallic+extractants+for+the+cationic+radionuclides+137-Cs%28I%29+and+90-Sr%28II%29+from+waste+solutions&rft.au=Clark%2C+J+F%3BChamberlin%2C+R+M%3BAbney%2C+K+D%3BStrauss%2C+SH&rft.aulast=Clark&rft.aufirst=J&rft.date=1999-01-01&rft.volume=33&rft.issue=14&rft.spage=2489&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Heavy metals; Caesium; Xylenes; Solid state; Modelling (-general-); Radioactive isotopes (see also Individual names); Air; Water; Nucleotides; Dilution; Caesium (Radioactive); Polyethylene glycols; Recovery; Precipitation (Chemical); Cationic; Extractant; Separation (see also Individual processes); Radioactivity; Organic; Toluene (see also Methylbenzenes); Wastewater; USA ER - TY - JOUR T1 - Mitigation Strategies for Flammable-gas Waste Tanks at the Hanford Site - Part II: Models AN - 17377911; 4605646 AB - This paper comprises three parts. The first part evaluates all possible strategies to mitigate the flammable gas (FG) hazard in Facility Group I (FG-1) double-shell tanks at the Hanford Site and identifies the leading candidates for further quantitative analysis. The second part of the paper discusses the models used in the evaluation of leading candidates of mitigation strategies. The analysis of leading strategies mitigating the FG hazard in FG-1 tanks is performed in the third part of the paper. An evaluation of FG hazards requires an estimate of the volume of gas released during a spontaneous or induced event. In this work, necessary gas-release, generation, and retention models have been developed conservatively. The gas-release model is based on a conservative linear void-fraction profile in the nonconvective (NC) layer. It is assumed that the entire NC layer participates in the release event and that the release stops when the NC layer becomes neutrally buoyant at the surface. Other slow, continuous, or local releases specific to each mitigation strategy are considered separately. To evaluate the mitigation schemes involving changes to the waste inventory or solids solubility, a simplified, lumped-parameter model is developed to represent the waste inventory. The waste composition is represented using 14 components: water, sodium hydroxide, sodium nitrate, sodium nitrite, sodium aluminate, sodium carbonate, sodium sulfate, soluble organic material, insoluble organic material, heavy salt, ammonia, super(137)Cs, super(90)Sr, and plutonium. To estimate the distribution of material in the waste, the inventory and material balance included adequate models for estimating the solid-liquid equilibrium, densities, and vapor-liquid equilibrium. JF - Radioactive Waste Management and Environmental Restoration AU - Kubic, W L AU - Sadasivan, P AU - Unal, C AD - Los Alamos National Laboratory, Technology and Safety Assessment Division, Nuclear Systems and Design Group, TSA-10, Los Alamos, NM 87545, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 25 EP - 47 VL - 22 IS - 1 SN - 1065-609X, 1065-609X KW - USA, Hanford Site KW - Risk Abstracts; Health & Safety Science Abstracts; Pollution Abstracts KW - Storage tanks KW - Radioactive wastes KW - Flammability KW - Hazardous wastes KW - R2 23020:Technological risks KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17377911?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radioactive+Waste+Management+and+Environmental+Restoration&rft.atitle=Mitigation+Strategies+for+Flammable-gas+Waste+Tanks+at+the+Hanford+Site+-+Part+II%3A+Models&rft.au=Kubic%2C+W+L%3BSadasivan%2C+P%3BUnal%2C+C&rft.aulast=Kubic&rft.aufirst=W&rft.date=1999-01-01&rft.volume=22&rft.issue=1&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Radioactive+Waste+Management+and+Environmental+Restoration&rft.issn=1065609X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hazardous wastes; Radioactive wastes; Storage tanks; Flammability ER - TY - JOUR T1 - Mitigation Strategies for Flammable-Gas Waste Tanks at the Hanford Site--Part I: Evaluation AN - 17377874; 4605645 AB - This paper discusses the evaluation of possible strategies to mitigate the flammable gas (FG) hazard in Facility Group I (FG-1) double-shell tanks at the Hanford Site. The primary goal of a mitigation strategy is to prevent concentrations of FG mixtures in the tank dome space from exceeding flammable limits. This paper consists of three parts. The first part evaluates all possible mitigation strategies and identifies the leading candidates for further quantitative analyses. The second part discusses the models used in the assessment of the leading candidates. The analyses of leading strategies mitigating the FG hazard in FG-1 tanks are performed in the last part of the paper. A total of 38 mitigation strategies were identified. The mitigation strategies are classified based on their ability to affect the gas release volume, gas inventory or retention, gas generation rate, dome volume, amount of oxidizer, and ignition source. A decision methodology was used to identify the leading candidates. The ranking method was divided into two steps. In the first step, concepts were ranked based on the six most important judgement factors-soundness of principle, proof of principle, availability of new data, availability of new analysis or analysis tools, technology status, and compatibility with retrieval. The preliminary ranking eliminated 22 mitigation strategies from further consideration. The remaining 16 then were ranked on the basis of consensus estimates of cost and schedule. Leading candidates that emerged from the second step of the ranking process included dilution, supernatant liquid removal, heating, use of inert gas in the dome space, and horizontal jet mixing as the leading candidates for mitigating the FG hazard. The efficacy of these strategies was assessed by detailed analyses in the second part of the paper. JF - Radioactive Waste Management and Environmental Restoration AU - Unal, C AU - Sadasivan, P AU - Kubic, W L AD - Los Alamos National Laboratory, Technology and Safety Assessment Division, Nuclear Systems and Design Group, TSA-10, Los Alamos, NM 87545, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 1 EP - 23 VL - 22 IS - 1 SN - 1065-609X, 1065-609X KW - USA, Hanford Site KW - Risk Abstracts; Health & Safety Science Abstracts; Pollution Abstracts KW - Storage tanks KW - Radioactive wastes KW - Flammability KW - Hazardous wastes KW - R2 23020:Technological risks KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17377874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radioactive+Waste+Management+and+Environmental+Restoration&rft.atitle=Mitigation+Strategies+for+Flammable-Gas+Waste+Tanks+at+the+Hanford+Site--Part+I%3A+Evaluation&rft.au=Unal%2C+C%3BSadasivan%2C+P%3BKubic%2C+W+L&rft.aulast=Unal&rft.aufirst=C&rft.date=1999-01-01&rft.volume=22&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Radioactive+Waste+Management+and+Environmental+Restoration&rft.issn=1065609X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hazardous wastes; Flammability; Radioactive wastes; Storage tanks ER - TY - JOUR T1 - super(137)Cs contamination of plants used for traditional medicine and implications for human exposure AN - 17319547; 4589227 AB - This paper discusses the use of medicinal plants in traditional medicine practices in the Marshall Islands and measurement data of super(137)Cs in plants used in medicinal remedies. This previously unexplored contribution to radiation exposure was recognized as one of several potentially important considerations in determining present-day risks to the Marshallese population from residual weapons' test radioactivity in the environment. The leaves or fruit of five species of plants were sampled at 14 of the 29 atolls of the Marshall Islands. super(137)Cs concentrations were measured in 295 samples. The concentration of super(137)Cs in each species generally decreased with increasing distance and decreasing latitude from the atomic weapons testing area in the northern area of the country. Of the species sampled, Polypodium scolopendria exhibited the highest mean super(137)Cs concentration by several fold. Other species could not be differentiated in terms of super(137)Cs uptake. The results of calculations to assess possible radiation doses under specific intake scenarios indicate that at most locations in the Marshall Islands, ingestion of these plants for medicinal purposes will not contribute significantly to the total dose received (above background), although the frequency and amount of consumption of these plants is not well known. This study provides the first information of its kind for the assessment of radiation dose to Marshall Islands' residents from locally grown plants used in traditional medicine. JF - Journal of Environmental Radioactivity AU - Duffy, S AU - Simon, S L AU - Whicker, F W AD - ESH-17, Air Quality Group, MS J978, Los Alamos, National Laboratory, Los Alamos, NM, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 27 EP - 44 VL - 46 IS - 1 SN - 0265-931X, 0265-931X KW - Marshall Is. KW - Polypodium scolopendria KW - cesium-137 KW - medicinal plants KW - Toxicology Abstracts; Health & Safety Science Abstracts; Pollution Abstracts; Risk Abstracts KW - Cesium KW - Medicinal plants KW - Herbal medicines KW - Radioactive pollution KW - Bioaccumulation KW - Radioisotopes KW - H 8000:Radiation Safety/Electrical Safety KW - X 24210:Radiation & radioactive materials KW - P 8000:RADIATION KW - R2 23060:Medical and environmental health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17319547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Radioactivity&rft.atitle=super%28137%29Cs+contamination+of+plants+used+for+traditional+medicine+and+implications+for+human+exposure&rft.au=Duffy%2C+S%3BSimon%2C+S+L%3BWhicker%2C+F+W&rft.aulast=Duffy&rft.aufirst=S&rft.date=1999-01-01&rft.volume=46&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Radioactivity&rft.issn=0265931X&rft_id=info:doi/10.1016%2FS0265-931X%2898%2900121-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Polypodium scolopendria; Radioactive pollution; Radioisotopes; Cesium; Herbal medicines; Bioaccumulation; Medicinal plants DO - http://dx.doi.org/10.1016/S0265-931X(98)00121-0 ER - TY - JOUR T1 - Moisture accumulation under asphalt cover at radioactive waste-burial site AN - 17196719; 4491024 AB - Moisture can accumulate under asphalt covers for waste-burial areas, potentially mobilizing components of the waste. This case study describes an asphalt cover emplaced in 1961 to contain plutonium, uranium, beryllium, and lead wastes in an area at the Los Alamos National Laboratory used for underground nonnuclear detonation tests. In this semiarid environment, moisture, apparently from meteoric sources, has accumulated in the soil and tuff below the cover. Saturated conditions are observed to a depth of similar to 6 m, while adjacent uncovered areas remain dry. No migration of plutonium or other contaminants has been observed. Remediation of the saturated volume may consist of removal of the asphalt cover and its replacement with a multilayer engineered cover, possibly with venting of the subsurface. The potential for water accumulation should always be considered when asphalt has been used or is proposed as a cover for a waste site. JF - Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management AU - Rofer, C K AU - Martinez, BA AU - Klein, M B AU - Bayhurst, G K AU - Triay, IR AD - Los Alamos Nat. Lab., P.O. Box 1663, MS E510, Los Alamos, NM 87545, USA, rofer@lanl.gov Y1 - 1999/01// PY - 1999 DA - Jan 1999 SP - 10 EP - 17 VL - 3 IS - 1 SN - 1090-025X, 1090-025X KW - asphalt KW - moisture KW - Pollution Abstracts KW - Concrete KW - Lead KW - Waste management KW - Uranium KW - Containment KW - Plutonium KW - Radioactive wastes KW - Semiarid environments KW - Beryllium KW - P 8000:RADIATION KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17196719?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Practice+Periodical+of+Hazardous%2C+Toxic%2C+and+Radioactive+Waste+Management&rft.atitle=Moisture+accumulation+under+asphalt+cover+at+radioactive+waste-burial+site&rft.au=Rofer%2C+C+K%3BMartinez%2C+BA%3BKlein%2C+M+B%3BBayhurst%2C+G+K%3BTriay%2C+IR&rft.aulast=Rofer&rft.aufirst=C&rft.date=1999-01-01&rft.volume=3&rft.issue=1&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Practice+Periodical+of+Hazardous%2C+Toxic%2C+and+Radioactive+Waste+Management&rft.issn=1090025X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lead; Beryllium; Containment; Plutonium; Concrete; Radioactive wastes; Semiarid environments; Waste management; Uranium ER - TY - JOUR T1 - Design and analysis of serial limiting dilution assays with small sample sizes AN - 17131974; 4434236 AB - We study the design of serial limiting dilution assays (SLDAs) for estimation of effector cell frequency in settings that restrict severely the amount of material available for assay, and for which the assumption of a single-hit Poisson model is reasonable. For different designs (that is, dilution factor, number of dilution levels, and number of replicates at each level), we evaluate maximum likelihood and minimum chi-square estimators, using four quantitative criteria: probability of a non-informative assay (PNI), bias, coefficient of variation (CV), and mean squared error (MSE). Our results are exact, not simulation-based, nor approximations. We found that differences between these two estimators were insubstantial by comparison with the effect on the estimators of the experimental design. Bias was severe in small assays, and could lead, in extremely small designs, to overestimation of effector frequency by as much as 100%. These four criteria provide a rigorous basis for determining the most effective apportionment of total effort among replicates and dilution levels. By increasing the dilution factor and favoring the number of replicates over the number of dilution levels, the PNI is reduced while bias, CV and MSE are increased; and vice versa. Our study is easily extended to estimation of the density of biologically active particles per volume. It can also be extended to alternatives to the single-hit Poisson model for a serial limiting dilution assay. JF - Journal of Immunological Methods AU - Macken, C AD - Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1999/01/01/ PY - 1999 DA - 1999 Jan 01 SP - 13 EP - 29 PB - Elsevier Science B.V. VL - 222 IS - 1-2 SN - 0022-1759, 0022-1759 KW - Poisson model KW - Statistical analysis KW - limiting dilution assay KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Effector cells KW - W3 33240:Immunology KW - F 06731:Other methods KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17131974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Immunological+Methods&rft.atitle=Design+and+analysis+of+serial+limiting+dilution+assays+with+small+sample+sizes&rft.au=Macken%2C+C&rft.aulast=Macken&rft.aufirst=C&rft.date=1999-01-01&rft.volume=222&rft.issue=1-2&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Journal+of+Immunological+Methods&rft.issn=00221759&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Effector cells; Statistical analysis ER - TY - JOUR T1 - Remnant slab dynamics following continental collision AN - 1703691632; 2015-076656 JF - International Union of Geodesy and Geophysics General Assembly Comptes Rendus = Union Geodesique et Geophysique Internationale Comptes Rendus de l'Assemblee Generale AU - Jarvis, G T AU - Lowman, J P AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 63 PB - IUGG, [location varies] VL - 99, Week A KW - plate tectonics KW - subduction zones KW - plate collision KW - numerical models KW - plate boundaries KW - slabs KW - mantle KW - continental crust KW - convection KW - crust KW - boundary conditions KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1703691632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+Comptes+Rendus+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+l%27Assemblee+Generale&rft.atitle=Remnant+slab+dynamics+following+continental+collision&rft.au=Jarvis%2C+G+T%3BLowman%2C+J+P%3BAnonymous&rft.aulast=Jarvis&rft.aufirst=G&rft.date=1999-01-01&rft.volume=99%2C+Week+A&rft.issue=&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+Comptes+Rendus+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+l%27Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG99 N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Last updated - 2015-08-13 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - boundary conditions; continental crust; convection; crust; mantle; numerical models; plate boundaries; plate collision; plate tectonics; slabs; subduction zones ER - TY - JOUR T1 - Finite difference modeling of path effects in western China AN - 1692747450; 2015-062187 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Jones, L E AU - Bradley, C R AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 213 PB - IUGG, [location varies] VL - 99, Week B KW - Far East KW - one-dimensional models KW - finite difference analysis KW - elastic waves KW - waveforms KW - Mohorovicic discontinuity KW - two-dimensional models KW - phase velocity KW - velocity structure KW - lateral heterogeneity KW - western China KW - Asia KW - earthquakes KW - crust KW - China KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692747450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Finite+difference+modeling+of+path+effects+in+western+China&rft.au=Jones%2C+L+E%3BBradley%2C+C+R%3BAnonymous&rft.aulast=Jones&rft.aufirst=L&rft.date=1999-01-01&rft.volume=99%2C+Week+B&rft.issue=&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG 99 N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Last updated - 2015-07-02 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - Asia; China; crust; earthquakes; elastic waves; Far East; finite difference analysis; lateral heterogeneity; Mohorovicic discontinuity; one-dimensional models; phase velocity; two-dimensional models; velocity structure; waveforms; western China ER - TY - JOUR T1 - Adaptive automatic phase repicking for high-precision hypocenter relation in large seismic data sets AN - 1692746638; 2015-062210 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Rowe, Charlotte AU - Aster, Richard AU - Fehler, Michael AU - Phillips, W Scott AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 216 PB - IUGG, [location varies] VL - 99, Week B KW - P-waves KW - data processing KW - Europe KW - elastic waves KW - hot dry rocks KW - Bas-Rhin France KW - automated analysis KW - France KW - surface waves KW - seismic coherency KW - focus KW - algorithms KW - induced earthquakes KW - seismograms KW - adaptive filters KW - body waves KW - Western Europe KW - Soultz-sous-Forets France KW - guided waves KW - coda waves KW - geothermal reservoirs KW - seismic waves KW - microearthquakes KW - earthquakes KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692746638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Adaptive+automatic+phase+repicking+for+high-precision+hypocenter+relation+in+large+seismic+data+sets&rft.au=Rowe%2C+Charlotte%3BAster%2C+Richard%3BFehler%2C+Michael%3BPhillips%2C+W+Scott%3BAnonymous&rft.aulast=Rowe&rft.aufirst=Charlotte&rft.date=1999-01-01&rft.volume=99%2C+Week+B&rft.issue=&rft.spage=216&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG 99 N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Last updated - 2015-07-02 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - adaptive filters; algorithms; automated analysis; Bas-Rhin France; body waves; coda waves; data processing; earthquakes; elastic waves; Europe; focus; France; geothermal reservoirs; guided waves; hot dry rocks; induced earthquakes; microearthquakes; P-waves; S-waves; seismic coherency; seismic waves; seismograms; Soultz-sous-Forets France; surface waves; Western Europe ER - TY - JOUR T1 - Envelope broadening of outgoing waves in random media; a comparison between the Markov approximation and the finite difference simulation in 2D AN - 1692746515; 2015-062188 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Sato, Haruo AU - Fehler, Mike AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 213 PB - IUGG, [location varies] VL - 99, Week B KW - numerical models KW - guided waves KW - finite difference analysis KW - statistical analysis KW - coda waves KW - elastic waves KW - waveforms KW - simulation KW - two-dimensional models KW - surface waves KW - traveltime KW - propagation KW - seismic waves KW - heterogeneity KW - Markov chain analysis KW - backscattering KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692746515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.atitle=Envelope+broadening+of+outgoing+waves+in+random+media%3B+a+comparison+between+the+Markov+approximation+and+the+finite+difference+simulation+in+2D&rft.au=Sato%2C+Haruo%3BFehler%2C+Mike%3BAnonymous&rft.aulast=Sato&rft.aufirst=Haruo&rft.date=1999-01-01&rft.volume=99%2C+Week+B&rft.issue=&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=International+Union+of+Geodesy+and+Geophysics+General+Assembly+%3D+Union+Geodesique+et+Geophysique+Internationale+Comptes+Rendus+de+la+...Assemblee+Generale&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IUGG 99 N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Last updated - 2015-07-02 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - backscattering; coda waves; elastic waves; finite difference analysis; guided waves; heterogeneity; Markov chain analysis; numerical models; propagation; seismic waves; simulation; statistical analysis; surface waves; traveltime; two-dimensional models; waveforms ER - TY - JOUR T1 - The effect of supercritical carbon dioxide treatment on the leachability and structure of cemented radioactive waste-forms AN - 16133278; 4605939 AB - The former process for the cementation of transuranic (TRU) low-level wastes poses several technical problems. Specifically in the US a TRU waste-form has not yet passed the Waste Isolation Pilot Plant prohibition for free liquid. For this reason, treatment of the portland cement based waste-form with supercritical carbon dioxide (SCCO sub(2)) is shown to satisfy regulations. The effect of SCCO sub(2) treatment by applying different CO sub(2) pressure and temperature conditions (8.4 MPa < p < 28 MPa, 35 degree C < T < 62 degree C) on the leachability, phase constitution, and microstructure of surrogate-doped portland cement type I/II samples is presented. Leaching studies were performed using a synthetic groundwater leaching procedure. Changes in phase constitution of the major crystalline phases (Ca(OH) sub(2), CaCO sub(3)) as well as the microstructure were measured by X-ray diffraction and scanning electron microscopy. SCCO sub(2) treatment at 8.4 MPa and 35 degree C can be shown as the most promising conditions to satisfy the requirements of the Department of Transportation (DOT) and to enhance the natural aging reaction of cement paste by carbonation, combined with the lowest release rates of the surrogates super(232)Th, and super(151/153)Eu. JF - Waste Management AU - Hartmann, T AU - Paviet-Hartmann, P AU - Rubin, J B AU - Fitzsimmons, M R AU - Sickafus, KE AD - Materials Science and Technology Division, Los Alamos National Laboratory, Structure Property Relations, MST8, Mail Stop J514, Los Alamos, NM 87545, USA, hartmann@lanl.gov Y1 - 1999 PY - 1999 DA - 1999 SP - 355 EP - 361 VL - 19 IS - 5 SN - 0956-053X, 0956-053X KW - cementation KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Storage KW - Radioactive wastes KW - Containment KW - Carbon dioxide KW - Hazardous wastes KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16133278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waste+Management&rft.atitle=The+effect+of+supercritical+carbon+dioxide+treatment+on+the+leachability+and+structure+of+cemented+radioactive+waste-forms&rft.au=Hartmann%2C+T%3BPaviet-Hartmann%2C+P%3BRubin%2C+J+B%3BFitzsimmons%2C+M+R%3BSickafus%2C+KE&rft.aulast=Hartmann&rft.aufirst=T&rft.date=1999-01-01&rft.volume=19&rft.issue=5&rft.spage=355&rft.isbn=&rft.btitle=&rft.title=Waste+Management&rft.issn=0956053X&rft_id=info:doi/10.1016%2FS0956-053X%2899%2900138-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Storage; Radioactive wastes; Carbon dioxide; Containment; Hazardous wastes DO - http://dx.doi.org/10.1016/S0956-053X(99)00138-5 ER - TY - JOUR T1 - Evidence of intrinsic differences in the light scattering properties of tumorigenic and nontumorigenic cells. AN - 69149114; 9915139 AB - BACKGROUNDThe objective of this study was to determine whether there are intrinsic differences in the light scattering properties of tumorigenic and nontumorigenic cells from a multistep carcinogenesis model.METHODSWavelength-dependent and polarization-dependent light scattering properties of cell suspensions were measured.RESULTSStatistically significant differences were found between the tumorigenic and nontumorigenic cells. CONCLUSIONS. Differences in the light scattering properties of tumorigenic and nontumorigenic cells are attributed to a change in the average size of the scattering centers on the order of a few ten of nanometers. This work is relevant to the development of noninvasive optical methods for cancer diagnosis. JF - Cancer AU - Mourant, J R AU - Hielscher, A H AU - Eick, A A AU - Johnson, T M AU - Freyer, J P AD - Chemical Sciences and Technology Division, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1998/12/25/ PY - 1998 DA - 1998 Dec 25 SP - 366 EP - 374 VL - 84 IS - 6 SN - 0008-543X, 0008-543X KW - Abridged Index Medicus KW - Index Medicus KW - Rats KW - Animals KW - Scattering, Radiation KW - Cell Size KW - Tumor Cells, Cultured KW - Cell Count KW - Mice, Nude KW - Mice KW - Neoplasms -- pathology KW - Light UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69149114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cancer&rft.atitle=Evidence+of+intrinsic+differences+in+the+light+scattering+properties+of+tumorigenic+and+nontumorigenic+cells.&rft.au=Mourant%2C+J+R%3BHielscher%2C+A+H%3BEick%2C+A+A%3BJohnson%2C+T+M%3BFreyer%2C+J+P&rft.aulast=Mourant&rft.aufirst=J&rft.date=1998-12-25&rft.volume=84&rft.issue=6&rft.spage=366&rft.isbn=&rft.btitle=&rft.title=Cancer&rft.issn=0008543X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-03-30 N1 - Date created - 1999-03-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Calmodulin binding to myosin light chain kinase begins at substoichiometric Ca2+ concentrations: a small-angle scattering study of binding and conformational transitions. AN - 69151705; 9922147 AB - We have used small-angle scattering to study the calcium dependence of the interactions between calmodulin (CaM) and skeletal muscle myosin light chain kinase (MLCK), as well as the conformations of the complexes that form. Scattering data were measured from equimolar mixtures of a functional MLCK and CaM or a mutated CaM (B12QCaM) incompetent to bind Ca2+ in its N-terminal domain, with increasing Ca2+ concentrations. To evaluate differences between CaM-enzyme versus CaM-peptide interactions, similar Ca2+ titration experiments were performed using synthetic peptides based on the CaM-binding sequence from MLCK (MLCK-I). Our data show there are different determinants for CaM binding the isolated peptide sequence compared to CaM binding to the same sequences within the enzyme. For example, binding of either CaM or B12QCaM to the MLCK-I peptide is observed even in the presence of EGTA, whereas binding of CaM to the enzyme requires Ca2+. The peptide studies also show that the conformational collapse of CaM requires both the N and C domains of CaM to be competent for Ca2+ binding as well as interactions with each end of MLCK-I, and it occurs at approximately 2 mol of Ca2+/mol of CaM. We show that CaM binding to the MLCK enzyme begins at substoichiometric concentrations of Ca2+ (< or = 2 mol of Ca2+/mol of CaM), but that the final compact structure of CaM with the enzyme requires saturating Ca2+. In addition, MLCK enzyme does bind to 2Ca2+ x B12QCaM, although this complex is more extended than the complex with native CaM. Our results support the hypothesis that CaM regulation of MLCK involves an initial binding step at less than saturating Ca2+ concentrations and a subsequent activation step at higher Ca2+ concentrations. JF - Biochemistry AU - Krueger, J K AU - Bishop, N A AU - Blumenthal, D K AU - Zhi, G AU - Beckingham, K AU - Stull, J T AU - Trewhella, J AD - Chemical Science and Technology Division, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1998/12/22/ PY - 1998 DA - 1998 Dec 22 SP - 17810 EP - 17817 VL - 37 IS - 51 SN - 0006-2960, 0006-2960 KW - Calmodulin KW - 0 KW - Peptide Fragments KW - Myosin-Light-Chain Kinase KW - EC 2.7.11.18 KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Space life sciences KW - Non-programmatic KW - Peptide Fragments -- metabolism KW - Mutagenesis, Site-Directed KW - X-Rays KW - Scattering, Radiation KW - Thermodynamics KW - Synchrotrons KW - Peptide Fragments -- genetics KW - Molecular Sequence Data KW - Amino Acid Sequence KW - Protein Binding KW - Protein Conformation KW - Myosin-Light-Chain Kinase -- chemistry KW - Calmodulin -- metabolism KW - Calcium -- metabolism KW - Myosin-Light-Chain Kinase -- metabolism KW - Calmodulin -- chemistry KW - Calmodulin -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69151705?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Calmodulin+binding+to+myosin+light+chain+kinase+begins+at+substoichiometric+Ca2%2B+concentrations%3A+a+small-angle+scattering+study+of+binding+and+conformational+transitions.&rft.au=Krueger%2C+J+K%3BBishop%2C+N+A%3BBlumenthal%2C+D+K%3BZhi%2C+G%3BBeckingham%2C+K%3BStull%2C+J+T%3BTrewhella%2C+J&rft.aulast=Krueger&rft.aufirst=J&rft.date=1998-12-22&rft.volume=37&rft.issue=51&rft.spage=17810&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-02-11 N1 - Date created - 1999-02-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Neptunium and plutonium solubilities in a Yucca Mountain groundwater AN - 52338292; 2000-051004 JF - Environmental Science & Technology, ES & T AU - Efurd, D Wes AU - Runde, Wolfgang AU - Banar, Joe C AU - Janecky, David R AU - Kaszuba, John P AU - Palmer, Phillip, D AU - Roensch, Fred R AU - Tait, C Drew Y1 - 1998/12/15/ PY - 1998 DA - 1998 Dec 15 SP - 3893 EP - 3900 PB - American Chemical Society, Washington, DC VL - 32 IS - 24 SN - 0013-936X, 0013-936X KW - United States KW - aquifer vulnerability KW - neptunium KW - plutonium KW - radioactive waste KW - ground water KW - reactivity KW - thermodynamic properties KW - Yucca Mountain KW - geochemistry KW - Nevada KW - concentration KW - colloidal materials KW - solutes KW - pollution KW - solubility KW - Nye County Nevada KW - hydrochemistry KW - aquifers KW - saturation KW - metals KW - nuclear facilities KW - waste disposal KW - actinides KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52338292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Neptunium+and+plutonium+solubilities+in+a+Yucca+Mountain+groundwater&rft.au=Efurd%2C+D+Wes%3BRunde%2C+Wolfgang%3BBanar%2C+Joe+C%3BJanecky%2C+David+R%3BKaszuba%2C+John+P%3BPalmer%2C+Phillip%2C+D%3BRoensch%2C+Fred+R%3BTait%2C+C+Drew&rft.aulast=Efurd&rft.aufirst=D&rft.date=1998-12-15&rft.volume=32&rft.issue=24&rft.spage=3893&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2014-03-14 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; aquifer vulnerability; aquifers; colloidal materials; concentration; geochemistry; ground water; hydrochemistry; metals; neptunium; Nevada; nuclear facilities; Nye County Nevada; plutonium; pollution; radioactive waste; reactivity; saturation; solubility; solutes; thermodynamic properties; United States; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Passive infrared spectroscopy of the eruption plume at Popocatepetl Volcano, Mexico AN - 52526940; 1999-006865 AB - Techniques are described for extending the range of passive IR spectroscopy to monitor gases over distances of 17 km. The techniques include modified Fourier-transform IR spectroscopy (FTIR); long-wave IR (8-12 mu m) spectra show SO (sub 2) , H (sub 2) O, plume aerosol continuum emission and SiF (sub 4) . Mid-wave IR (3-5 mu m) spectroscopy allowed the determination of HCl, SO (sub 2) and HF. Total SO (sub 2) flux was measured using a UV correlation spectrometer. Chemical ratios and flux rates of Popocatepetl plume components for 1994-97 are presented. Preceding the Feb 22-26, 1997 explosive eruption of the volcano, a steady increase occurred in SiF (sub 4) /SO (sub 2) over several days, followed by a tenfold decrease in this ratio over a few hr immediately afterwards. JF - Nature (London) AU - Love, S P AU - Goff, F AU - Counce, D AU - Siebe, C AU - Delgado, H Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 563 EP - 567 PB - Macmillan Journals, London VL - 396 IS - 6711 SN - 0028-0836, 0028-0836 KW - sulfur dioxide KW - monitoring KW - volcanic rocks KW - geologic hazards KW - igneous rocks KW - Popocatepetl KW - explosive eruptions KW - infrared spectra KW - gases KW - pyroclastics KW - FTIR spectra KW - volatiles KW - volcanic risk KW - Mexico KW - eruptions KW - volcanoes KW - aerosols KW - spectra KW - volcanic ash KW - chemical composition KW - geochemistry KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52526940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Passive+infrared+spectroscopy+of+the+eruption+plume+at+Popocatepetl+Volcano%2C+Mexico&rft.au=Love%2C+S+P%3BGoff%2C+F%3BCounce%2C+D%3BSiebe%2C+C%3BDelgado%2C+H&rft.aulast=Love&rft.aufirst=S&rft.date=1998-12-01&rft.volume=396&rft.issue=6711&rft.spage=563&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F25109 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - aerosols; chemical composition; eruptions; explosive eruptions; FTIR spectra; gases; geochemistry; geologic hazards; igneous rocks; infrared spectra; Mexico; monitoring; Popocatepetl; pyroclastics; spectra; sulfur dioxide; volatiles; volcanic ash; volcanic risk; volcanic rocks; volcanoes DO - http://dx.doi.org/10.1038/25109 ER - TY - JOUR T1 - Damage to structures by pyroclastic flows and surges, inferred from nuclear weapons effects AN - 52494587; 1999-021148 AB - In order to define the risk from explosive eruptions, one must constrain both the probability of explosive events and the effects, or consequences, of those events. This paper focuses on the effects of pyroclastic flows and surges (here termed "pyroclastic density currents", or PDCs) on buildings, infrastructure elements, and to some extent on vehicles. PDCs impart a lateral force to such structures in the form of dynamic pressure, which depends on the bulk density of the PDC (which in turn depends mainly on particle concentration) and its velocity. For reasonable ranges of particle concentration (10 (super -3) to 0.5) and velocities (10 to 300 m/s), dynamic pressure on the upstream face of a structure ranges from approximately 0.1 kPa to 10 (super 4) kPa. Lateral loads ranging up to about 100 kPa were produced during nuclear weapons tests in the 1940s and 1950s that were designed to study the effects of such loading on a variety of structures for civil defense and emergency response purposes in the event of nuclear war. Although considerable simplifications are involved, the data from these weapon tests provide useful analog information for understanding the effects of PDCs. I reviewed data from the nuclear tests, describing the expected damage from different loadings. Tables are provided that define the response of different structural elements (e.g., windows, framing, walls) and whole structures to loading in probabilistic terms, which in principle account for variations in construction quality, orientation, and other factors. Finally, damage documented from historical eruptions at Mt. Lamington (1951), Herculaneum (AD 79 Vesuvius eruption), and St. Pierre (1902 Mt. Pelee eruption) is reviewed. Damage patterns, combined with estimates of velocity, provide an independent estimate of particle concentration in the PDCs. Details of structural damage should be recorded and mapped around future eruptions in order to help refine this aspect of consequence analysis. Another fruitful approach would be to combine numerical simulations of eruption scenarios, which can produce simulated maps of dynamic pressure, with GIS-based data on structures for a given region; the result would be predictions of consequences that could be used for planning and emergency response training. JF - Journal of Volcanology and Geothermal Research AU - Valentine, Greg A Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 117 EP - 140 PB - Elsevier, Amsterdam VL - 87 IS - 1-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - pressure KW - lava flows KW - geologic hazards KW - explosions KW - igneous rocks KW - damage KW - effects KW - pyroclastics KW - safety KW - volcanism KW - eruptions KW - buildings KW - volcanoes KW - risk assessment KW - nuclear explosions KW - surges KW - 22:Environmental geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52494587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Damage+to+structures+by+pyroclastic+flows+and+surges%2C+inferred+from+nuclear+weapons+effects&rft.au=Valentine%2C+Greg+A&rft.aulast=Valentine&rft.aufirst=Greg&rft.date=1998-12-01&rft.volume=87&rft.issue=1-4&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2898%2900094-8 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1999-01-01 N1 - Number of references - 37 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-09-14 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - buildings; damage; effects; eruptions; explosions; geologic hazards; igneous rocks; lava flows; nuclear explosions; pressure; pyroclastics; risk assessment; safety; surges; volcanic rocks; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(98)00094-8 ER - TY - JOUR T1 - Earthquake source parameters and fault kinematics in the eastern California shear zone AN - 52494441; 1999-021060 AB - Based on waveform data from a profile of aftershocks following the north-south trace of the 28 June 1992 Landers rupture across the Mojave desert, we construct a new velocity model for the Mojave region that features a thin, slow crust. Using this model, we obtain source parameters, including depth and duration, for each of the aftershocks in the profile and, in addition, any significant (M>3.7) Joshua Tree-Landers aftershock between April 1992 and October 1994 for which coherent TERRAscope data were available. In all, we determine source parameters and stress drops for 45 significant (M (sub w) >4) earthquakes associated with the Joshua Tree and Landers sequences, using a waveform grid-search algorithm. Stress drops for these earthquakes appear to vary systematically with location, with respect to previous seismic activity, proximity to previous rupture (i.e., with respect to the Landers rupture), and with tectonic province. In general, for areas north of the Pinto Mountain fault, stress drops of aftershocks located off the faults involved with the Landers rupture are higher than those located on the fault, with the exception of aftershocks on the newly recognized Kickapoo (Landers) fault. Stress drops are moderate south of the Pinto Mountain fault, where there is a history of seismic swarms but no single throughgoing fault. In contrast to aftershocks in the eastern Transverse ranges, and related to the 1992 Big Bear, California, sequence, Landers events show no clear relationship between stress drop and depth. Instead, higher stress-drop aftershocks appear to correlate with activity on nascent faults or those that experienced relatively small slip during mainshock rupture. JF - Bulletin of the Seismological Society of America AU - Jones, Laura E AU - Helmberger, Donald V Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 1337 EP - 1352 PB - Seismological Society of America, Berkeley, CA VL - 88 IS - 6 SN - 0037-1106, 0037-1106 KW - United States KW - shear zones KW - magnitude KW - Landers California KW - Transverse Ranges KW - equations KW - seismic sources KW - Landers earthquake 1992 KW - models KW - California KW - kinematics KW - aftershocks KW - rupture KW - Mojave Desert KW - velocity KW - algorithms KW - San Bernardino County California KW - earthquakes KW - faults KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52494441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Earthquake+source+parameters+and+fault+kinematics+in+the+eastern+California+shear+zone&rft.au=Jones%2C+Laura+E%3BHelmberger%2C+Donald+V&rft.aulast=Jones&rft.aufirst=Laura&rft.date=1998-12-01&rft.volume=88&rft.issue=6&rft.spage=1337&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 40 N1 - PubXState - CA N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - aftershocks; algorithms; California; earthquakes; equations; faults; kinematics; Landers California; Landers earthquake 1992; magnitude; models; Mojave Desert; rupture; San Bernardino County California; seismic sources; shear zones; Transverse Ranges; United States; velocity ER - TY - JOUR T1 - Stochastic finite-fault modeling of ground motions from the 1994 Northridge, California, earthquake; II, Widespread nonlinear response at soil sites AN - 52491359; 1999-021065 AB - On average, soil sites behaved nonlinearly during the M 6.7 1994 Northridge, California, earthquake. This conclusion follows from an analysis that combines elements of two independent lines of investigation. First, we apply the stochastic finite-fault simulation method, calibrated with 28 rock-site recordings of the Northridge mainshock, to the simulation of the input motions to the soil sites that recorded this event. The calibrated model has a near-zero average bias in reproducing ground motions at rock sites in the frequency range from 0.1 to 12.5 Hz. The soil sites selected are those where there is colocation of strong-motion accelerographs and temporary instruments from the Northridge aftershock observation network. At these sites, weak-motion amplification functions based on numerous aftershock records have been empirically determined, in three separate investigations reported in the literature. These empirical weak-motion amplification factors can be applied to the simulated input rock motions, at each soil site, to determine the expected motions during the mainshock (i.e., neglecting nonlinearity). These expected motions can then be compared to the actual recordings during the mainshock. This analysis shows that the recorded strong-motion spectra are significantly over-estimated if weak-motion amplifications are used. The null hypothesis, stating that the inferred differences between weak- and strong-motion amplifications are statistically insignificant, is rejected with 95% confidence in the frequency range from approximately 2.2 to 10 Hz. On average, the difference between weak- and strong-motion amplifications is a factor of 2. Nonlinear response at those soil stations for which the input peak acceleration exceeded 150 to 200 cm/sec (super 2) contributes most to this observed average difference. These findings suggest a significant nonlinear response at soil stations in the Los Angeles urban area during the Northridge main-shock. The effect is consistent with the increase in damping of shear waves at high levels of strain, which is well known from geotechnical studies of soil properties. JF - Bulletin of the Seismological Society of America AU - Beresnev, Igor A AU - Atkinson, Gail M AU - Johnson, Paul A AU - Field, Edward H Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 1402 EP - 1410 PB - Seismological Society of America, Berkeley, CA VL - 88 IS - 6 SN - 0037-1106, 0037-1106 KW - United States KW - soil mechanics KW - Los Angeles County California KW - elastic waves KW - frequency KW - simulation KW - wave amplification KW - California KW - Los Angeles California KW - attenuation KW - aftershocks KW - strong motion KW - stochastic processes KW - seismicity KW - Northridge California KW - ground motion KW - focus KW - seismic waves KW - Northridge earthquake 1994 KW - earthquakes KW - faults KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52491359?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Stochastic+finite-fault+modeling+of+ground+motions+from+the+1994+Northridge%2C+California%2C+earthquake%3B+II%2C+Widespread+nonlinear+response+at+soil+sites&rft.au=Beresnev%2C+Igor+A%3BAtkinson%2C+Gail+M%3BJohnson%2C+Paul+A%3BField%2C+Edward+H&rft.aulast=Beresnev&rft.aufirst=Igor&rft.date=1998-12-01&rft.volume=88&rft.issue=6&rft.spage=1402&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 25 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - aftershocks; attenuation; California; earthquakes; elastic waves; faults; focus; frequency; ground motion; Los Angeles California; Los Angeles County California; Northridge California; Northridge earthquake 1994; seismic waves; seismicity; simulation; soil mechanics; stochastic processes; strong motion; United States; wave amplification ER - TY - JOUR T1 - Compositional patterns for lower Mesozoic olivine tholeiitic diabase dikes in the Deep River basin, North Carolina AN - 52366667; 2000-033006 AB - Among 56 screened analyses from a large number of chemical analyses for Lower Mesozoic diabase dikes in the Deep River basin, North Carolina, two compositional groups exist: a main group (41 samples) and a high-Fe group. All rocks are either aphyric or olivine+ or -plagioclase phyric. Compositions of the high-Mg members of the main group approach those of primary picritic magmas. Trends on variation diagrams and least-squares mixing calculations for the main group indicate that the most differentiated sample can be derived from the least differentiated (high-Mg picritic, assumed to be primary) by low-pressure fractionation (35 percent) of about 2/3 olivine and 1/3 plagioclase. Chondrite-normalized rare-earth element and spider diagram patterns are generally flat, with slight large-ion lithophile (LIL) element enrichment (10-20 times chondritic abundance; no Eu anomalies). Patterns most closely resemble those for E-MORBs, except for positive Ba-K and negative Nb anomalies. Despite their rift-related continental emplacement, compositions of these dikes plot in the MORB field on tectonic discrimination diagrams. However, their isotopic compositions are in the "enriched" field on a Sr-Nd correlation diagram. On a (super 206) Pb/ (super 204) Pb versus (super 207) Pb/ (super 204) Pb diagram, the diabase trend approximately parallels the MORB trend, but at higher (super 207) Pb/ (super 204) Pb. The isotopic evidence indicates that the Deep River diabases are from a mantle source that, relative to MORBs, had long-term enrichment in incompatible elements such as U and Rb, or represent crustal contamination of a MORB-like magma. Thus despite some chemical similarities to MORBs, isotopic evidence indicates a mantle source different from those producing MORBs. This diabase source might include old lithospheric components, either related to contamination of continental crust or contribution of Grenville subduction-related slabs to the mantle source. Finally, correlations among MgO-standardized Na (sub 8.0) , Fe (sub 8.0) , and Si (sub 8.0) in MORBs on a "local" (rather than "global") scale are quite similar to such correlations shown by the Deep River diabases. The Deep River diabase magmas may therefore have been formed by a mechanism similar to that which apparently formed MORBs, whereas relative to magmas of the main group, those of the high-Fe group represent a deeper source and smaller degree of melting. JF - Southeastern Geology AU - Ragland, Paul C AU - Kish, Stephen A AU - Parker, William C Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 91 EP - 102 PB - Duke University, Department of Geology, Durham, NC VL - 38 IS - 2 SN - 0038-3678, 0038-3678 KW - United States KW - lower Mesozoic KW - volcanic rocks KW - igneous rocks KW - Deep River basin KW - tholeiitic composition KW - olivine diabase KW - plutonic rocks KW - Durham Basin KW - Triassic KW - basalts KW - lithogeochemistry KW - Sanford Basin KW - chemical composition KW - geochemistry KW - patterns KW - Lee County North Carolina KW - Durham County North Carolina KW - Mesozoic KW - intrusions KW - dikes KW - North Carolina KW - mid-ocean ridge basalts KW - diabase KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52366667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southeastern+Geology&rft.atitle=Compositional+patterns+for+lower+Mesozoic+olivine+tholeiitic+diabase+dikes+in+the+Deep+River+basin%2C+North+Carolina&rft.au=Ragland%2C+Paul+C%3BKish%2C+Stephen+A%3BParker%2C+William+C&rft.aulast=Ragland&rft.aufirst=Paul&rft.date=1998-12-01&rft.volume=38&rft.issue=2&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Southeastern+Geology&rft.issn=00383678&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 47 N1 - PubXState - NC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SOGEAY N1 - SubjectsTermNotLitGenreText - basalts; chemical composition; Deep River basin; diabase; dikes; Durham Basin; Durham County North Carolina; geochemistry; igneous rocks; intrusions; Lee County North Carolina; lithogeochemistry; lower Mesozoic; Mesozoic; mid-ocean ridge basalts; North Carolina; olivine diabase; patterns; plutonic rocks; Sanford Basin; tholeiitic composition; Triassic; United States; volcanic rocks ER - TY - JOUR T1 - (super 99) Tc, (super 236) U, and (super 237) Np in the Snake River Plain Aquifer at the Idaho National Engineering and Environmental Laboratory, Idaho Falls, Idaho AN - 52337672; 2000-051003 JF - Environmental Science & Technology, ES & T AU - Beasley, T M AU - Dixon, P R AU - Mann, L J Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 3875 EP - 3881 PB - American Chemical Society, Washington, DC VL - 32 IS - 24 SN - 0013-936X, 0013-936X KW - United States KW - Snake River Plain Aquifer KW - aquifer vulnerability KW - technetium KW - Idaho KW - concentration KW - monitoring KW - Np-237 KW - isotopes KW - pollutants KW - pollution KW - Tc-99 KW - migration of elements KW - environmental analysis KW - ground water KW - aquifers KW - INEEL KW - radioactive isotopes KW - detection KW - metals KW - nuclear facilities KW - U-236 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52337672?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=%28super+99%29+Tc%2C+%28super+236%29+U%2C+and+%28super+237%29+Np+in+the+Snake+River+Plain+Aquifer+at+the+Idaho+National+Engineering+and+Environmental+Laboratory%2C+Idaho+Falls%2C+Idaho&rft.au=Beasley%2C+T+M%3BDixon%2C+P+R%3BMann%2C+L+J&rft.aulast=Beasley&rft.aufirst=T&rft.date=1998-12-01&rft.volume=32&rft.issue=24&rft.spage=3875&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; concentration; detection; environmental analysis; ground water; Idaho; INEEL; isotopes; metals; migration of elements; monitoring; Np-237; nuclear facilities; pollutants; pollution; radioactive isotopes; Snake River Plain Aquifer; Tc-99; technetium; U-236; United States ER - TY - JOUR T1 - Landed XRD/XRF analysis of prime targets in the search for past or present Martian life AN - 50163876; 1999-023316 AB - Mars landers seeking evidence for past or present life will be guided by information from orbital mapping and from previous surface exploration. Several target options have been proposed, including sites that may harbor extant life and sites most likely to preserve evidence of past life. These sites have specific mineralogic characteristics. Extant life might be gathered around the sinters and associated mineral deposits of rare active fumaroles, or held within brine pockets and inclusions in a few evaporite-mineral deposits. Possibilities for fossilization include deltaic and lake-bottom sediments of once-flooded craters, sinters formed by ancient hot-spring deposits, and the carbonate deposits associated with some evaporite systems. However, the highly varied mineralogy of fossil occurrences on Earth leads to the inference that Mars, an equally complex planet, could host a broad variety of potential fossilizing deposits. The abundance of volcanic systems on Mars and evidence for close associations between volcanism and water release suggest possibilities of organism entrapment and mineralization in volcaniclastic deposits, as found in some instances on Earth. Thus the targets being considered for exploration include a wide variety of unique deposits that would be characterized by silica or various nonsilicate minerals. Beyond these "special" deposits and in the most general case, an ability to distinguish mineralized from uncemented volcanic detritus may be the key to success in finding possible fossil-bearing authigenic mineralogies. A prototype miniaturized X ray diffraction/X ray fluorescence (XRD/XRF) instrument has been evaluated with silica, carbonate, and sulfate minerals and with a basalt, to examine the capabilities of this tool in mineralogic and petrologic exploration for exobiological goals. This instrument, CHEMIN (chemical and mineralogical analyzer), is based on an innovative low-power X ray tube, transmission geometry, and CCD collection and discrimination of diffracted and fluoresced X rays. The ability to accumulate and integrate the entire circumference of each complete Debye diffraction ring compensates for poor powder preparations, as might be produced by robotic sampling systems. With CHEMIN, a wide range of minerals can be uniquely identified. Using Rietveld analysis of the XRD results, mineral quantification is also possible. Expanded capabilities in phase analysis and constrained data solutions using quantitative XRD and XRF are within reach. JF - Journal of Geophysical Research AU - Vaniman, D AU - Bish, D AU - Blake, D AU - Elliott, S T AU - Sarrazin, P AU - Collins, S A AU - Chipera, S AU - Clifford, Stephen AU - Treiman, Allan AU - Newsom, Horton AU - Farmer, Jack Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 31 EP - 31,489 PB - American Geophysical Union, Washington, DC VL - 103 IS - E13 SN - 0148-0227, 0148-0227 KW - astrobiology KW - Mars KW - mapping KW - authigenic minerals KW - fossilization KW - life origin KW - terrestrial planets KW - planets KW - lithofacies KW - X-ray data KW - mineral composition KW - sampling KW - surface features KW - X-ray fluorescence spectra KW - planetology KW - spectra KW - geochemistry KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50163876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Landed+XRD%2FXRF+analysis+of+prime+targets+in+the+search+for+past+or+present+Martian+life&rft.au=Vaniman%2C+D%3BBish%2C+D%3BBlake%2C+D%3BElliott%2C+S+T%3BSarrazin%2C+P%3BCollins%2C+S+A%3BChipera%2C+S%3BClifford%2C+Stephen%3BTreiman%2C+Allan%3BNewsom%2C+Horton%3BFarmer%2C+Jack&rft.aulast=Vaniman&rft.aufirst=D&rft.date=1998-12-01&rft.volume=103&rft.issue=E13&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F98JE01428 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - astrobiology; authigenic minerals; fossilization; geochemistry; instruments; life origin; lithofacies; mapping; Mars; mineral composition; planetology; planets; sampling; spectra; surface features; terrestrial planets; X-ray data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1029/98JE01428 ER - TY - JOUR T1 - Drought-induced shift of a forest-woodland ecotone; rapid landscape response to climate variation AN - 50064924; 2010-027791 AB - In coming decades, global climate changes are expected to produce large shifts in vegetation distributions at unprecedented rates. These shifts are expected to be most rapid and extreme at ecotones, the boundaries between ecosystems, particularly those in semiarid landscapes. However, current models do not adequately provide for such rapid effects particularly those caused by mortality largely because of the lack of data from field studies. Here we report the most rapid landscape-scale shift of a woody ecotone ever documented: in northern New Mexico in the 1950s, the ecotone between semiarid ponderosa pine forest and pinon-juniper woodland shifted extensively (2 km or more) and rapidly (<5 years) through mortality of ponderosa pines in response to a severe drought. This shift has persisted for 40 years. Forest patches within the shift zone became much more fragmented, and soil erosion greatly accelerated. The rapidity and the complex dynamics of the persistent shift point to the need to represent more accurately these dynamics, especially the mortality factor, in assessments of the effects of climate change. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Allen, Craig D AU - Breshears, David D Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 14839 EP - 14842 PB - National Academy of Sciences, Washington, DC VL - 95 IS - 25 SN - 0027-8424, 0027-8424 KW - United States KW - Spermatophyta KW - Juniperus KW - Pinus ponderosa KW - Coniferales KW - New Mexico KW - biogeography KW - vegetation KW - Holocene KW - Pinus KW - climate change KW - drought KW - Cenozoic KW - geographic information systems KW - Bandelier Wilderness KW - quantitative analysis KW - Jemez Mountains KW - ecology KW - climate KW - Plantae KW - Quaternary KW - northern New Mexico KW - Gymnospermae KW - ecotones KW - Pinaceae KW - aerial photography KW - Pinus edulis KW - information systems KW - upper Holocene KW - Juniperus monosperma KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50064924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Drought-induced+shift+of+a+forest-woodland+ecotone%3B+rapid+landscape+response+to+climate+variation&rft.au=Allen%2C+Craig+D%3BBreshears%2C+David+D&rft.aulast=Allen&rft.aufirst=Craig&rft.date=1998-12-01&rft.volume=95&rft.issue=25&rft.spage=14839&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/ L2 - http://www.pnas.org/cgi/content/full/95/25/14839 http://www.pnas.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 48 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Accessed on July 31, 2007 N1 - Last updated - 2012-06-07 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - aerial photography; Bandelier Wilderness; biogeography; Cenozoic; climate; climate change; Coniferales; drought; ecology; ecotones; geographic information systems; Gymnospermae; Holocene; information systems; Jemez Mountains; Juniperus; Juniperus monosperma; New Mexico; northern New Mexico; Pinaceae; Pinus; Pinus edulis; Pinus ponderosa; Plantae; quantitative analysis; Quaternary; remote sensing; Spermatophyta; United States; upper Holocene; vegetation ER - TY - JOUR T1 - Using reactive solutes to constrain groundwater flow models at a site in northern Wisconsin AN - 17286019; 4593300 AB - We propose a method for constraining a groundwater flow model both by head observations and concentrations of nonconservative solutes such as calcium, using reaction-path modeling. When calibrating flow models in small watershed in northern Wisconsin using head data alone, we encountered problems of nonuniqueness. However, by coupling the flow models with a plagioclase dissolution model, we were able to greatly reduce the number of plausible flow models. First, by using flow modeling and reaction path modeling in parallel, we tested the consistency of residence times predicted by the flow models with solute concentrations predicted by the geochemical models. Mineral dissolution rate parameters were assumed to be spatially uniform; without this condition the geochemistry data would not provide additional constraints to the flow modeling process. For a more comprehensive test of our models, we used reactive-transport modeling to predict the spatial distribution of ions at each site. The models qualitatively reproduced the observed data and our calibrated silicate dissolution rates closely matched those reported in a field study of nearby site. There were also discrepancies between predictions and observations. We attribute these to transient effects and sediment heterogeneities that were not included in the models. While the resulting models are not unique, our approach demonstrates the ability of fairly simple models to explain much of the observed variability in a complex system. JF - Water Resources Research AU - Harrison Keating, E AU - Bahr, J M AD - Geoanalysis Group, Los Alamos National Laboratory, Los Alamos, New Mexico, USA Y1 - 1998/12// PY - 1998 DA - Dec 1998 SP - 3561 EP - 3571 PB - American Geophysical Union VL - 34 IS - 12 SN - 0043-1397, 0043-1397 KW - USA, Wisconisn KW - Water Resources Abstracts KW - Solutes KW - Calibrations KW - Chemical reactions KW - Groundwater movement KW - Solute transport KW - Geochemistry KW - Mineralogy KW - Model studies KW - Watersheds KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17286019?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Using+reactive+solutes+to+constrain+groundwater+flow+models+at+a+site+in+northern+Wisconsin&rft.au=Harrison+Keating%2C+E%3BBahr%2C+J+M&rft.aulast=Harrison+Keating&rft.aufirst=E&rft.date=1998-12-01&rft.volume=34&rft.issue=12&rft.spage=3561&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Solutes; Calibrations; Groundwater movement; Chemical reactions; Solute transport; Geochemistry; Mineralogy; Model studies; Watersheds ER - TY - JOUR T1 - Lateral subsurface flow pathways in a semiarid ponderosa pine hillslope AN - 17274400; 4593293 AB - The mechanisms controlling lateral subsurface flow in semiarid environments have received relatively little attention despite the fact that lateral subsurface flow can be an important runoff process in these environments. The objective of the current study is to better understand lateral subsurface flow process in semiarid environments. Natural chloride, dissolved organic carbon, and stable isotope ( delta D and delta super(18)O) tracers were used to investigate the lateral subsurface flow process and the chemical changes that occur as a result of lateral subsurface flow. Observed differences in chemistry between soil matrix water and lateral subsurface flow were large (for example, chloride concentrations in matrix soil water samples were >200 mg/L, compared with only 2 mg/L in lateral subsurface flow samples obtained at the same time). This difference in chemistry is indicative of a two-domain flow system in which macropores conduct lateral subsurface flow that is not in chemical or hydrological equilibrium with the soil matrix. The size of precipitation events appeared to have a strong influence on the variations in old/new water percentages, and examples of both old and new water dominated events were observed. There were also large variations in the chemistry of lateral subsurface flow with time. For example, chloride and dissolved organic carbon concentrations were 10 and 70 times greater, respectively, under saturated conditions than under unsaturated conditions. JF - Water Resources Research AU - Newman, B D AU - Campbell, A R AU - Wilcox, B P AD - Environmental Science Group, Los Alamos National Laboratory, Los Alamos, New Mexico Earth and Environmental Sciences Department, New Mexico Institute of Mining and Technology, Socorro, New Mexico, USA Y1 - 1998/12// PY - 1998 DA - Dec 1998 SP - 3485 EP - 3496 PB - American Geophysical Union VL - 34 IS - 12 SN - 0043-1397, 0043-1397 KW - USA KW - Water Resources Abstracts KW - Tracers KW - Flow pattern KW - Semiarid lands KW - Groundwater movement KW - Storm seepage KW - Macropores KW - Runoff KW - Stable isotopes KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17274400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Lateral+subsurface+flow+pathways+in+a+semiarid+ponderosa+pine+hillslope&rft.au=Newman%2C+B+D%3BCampbell%2C+A+R%3BWilcox%2C+B+P&rft.aulast=Newman&rft.aufirst=B&rft.date=1998-12-01&rft.volume=34&rft.issue=12&rft.spage=3485&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Tracers; Flow pattern; Groundwater movement; Semiarid lands; Storm seepage; Macropores; Runoff; Stable isotopes ER - TY - JOUR T1 - Reactive transport modeling of redox geochemistry: Approaches to chemical disequilibrium and reaction rate estimation at a site in northern Wisconsin AN - 17273435; 4593301 AB - The purpose of this study is to investigate the hydrology and redox geochemistry of shallow groundwater discharging to a stream in northern Wisconsin. In this organic-rich aquifer, we observe both oxygen reducing zones and iron reducing zones whose boundaries are roughly constant over time. To investigate the apparent steady state between solute fluxes and redox reaction rates, we develop a reactive transport model of carbon oxidation. We use a "quasi-kinetic," "partial-equilibrium" approach to modeling redox reactions, a hybrid approach between traditional equilibrium approaches and fully kinetic approaches that require large computer resources. Our model suggests that observed trends in redox sensitive elements can only be explained by oxidation rates that are both dependent on the predominant electron acceptor and are spatially variable. Our coupled models provide field-based estimates of redox kinetics, which are otherwise difficult to obtain in hydrologically complex systems. JF - Water Resources Research AU - Harrison Keating, E AU - Bahr, J M AD - Geoanalysis Group, Los Alamos National Laboratory, Los Alamos, New Mexico, USA Y1 - 1998/12// PY - 1998 DA - Dec 1998 SP - 3573 EP - 3584 PB - American Geophysical Union VL - 34 IS - 12 SN - 0043-1397, 0043-1397 KW - USA, Wisconsin KW - Water Resources Abstracts KW - Solutes KW - Redox reactions KW - Chemical reactions KW - Kinetics KW - Oxidation KW - Geochemistry KW - Chemical reduction KW - Groundwater discharge KW - Hydrology KW - SW 0880:Chemical processes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17273435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Reactive+transport+modeling+of+redox+geochemistry%3A+Approaches+to+chemical+disequilibrium+and+reaction+rate+estimation+at+a+site+in+northern+Wisconsin&rft.au=Harrison+Keating%2C+E%3BBahr%2C+J+M&rft.aulast=Harrison+Keating&rft.aufirst=E&rft.date=1998-12-01&rft.volume=34&rft.issue=12&rft.spage=3573&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Redox reactions; Solutes; Chemical reactions; Kinetics; Chemical reduction; Geochemistry; Oxidation; Groundwater discharge; Hydrology ER - TY - JOUR T1 - Comparison of acid and base leach for the removal of uranium from contaminated soil and catch-box media AN - 17239943; 4524322 AB - Several leach solutions have been developed for the removal of uranium (U) from contaminated media such as soil and military catch-box sand used for the ballistics testing of U-containing projectiles. Leach solutions of concentrated sulfuric acid and of carbonate (with and without oxidants such as peroxides) have also been used in the mining of U from high-grade ore deposits. Many of these solutions have been used at U-contaminated environmental sites with varying degrees of success. Batch leaches with six characterized U-contaminated media and seven leach solutions were conducted. After the leach solutions were reacted with the media (five soils and a catch-box sand), the solutions were analyzed for dissolved U, Ca, Si, Fe, Mn, Pb and Cr. We study the ability of acidic, basic, acidic-oxidizing and basic-oxidizing solutions to leach U from contaminated media. The results suggest the removal efficiency of soil U for each leach solution varies with the nature of the U-contamination in the media and the media composition. It is likely the forms of U in the contaminated media such as reduced, absorbed, complexed and solid species influence the solubilization of U by the leaching agents. JF - Canadian Journal of Soil Science AU - Duff, M C AU - Mason, CFV AU - Hunter, D B AD - Los Alamos National Laboratory, Chemical Sciences and Technology Division, P.O. Box 1663, MS J534, Los Alamos, NM 87545, USA, Martine@srel.edu Y1 - 1998/12// PY - 1998 DA - Dec 1998 SP - 675 EP - 683 VL - 78 IS - 4 SN - 0008-4271, 0008-4271 KW - Pollution Abstracts KW - Soil remediation KW - Pollutant removal KW - Leaching KW - Soil contamination KW - Uranium KW - Military KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17239943?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Soil+Science&rft.atitle=Comparison+of+acid+and+base+leach+for+the+removal+of+uranium+from+contaminated+soil+and+catch-box+media&rft.au=Duff%2C+M+C%3BMason%2C+CFV%3BHunter%2C+D+B&rft.aulast=Duff&rft.aufirst=M&rft.date=1998-12-01&rft.volume=78&rft.issue=4&rft.spage=675&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Soil+Science&rft.issn=00084271&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Soil remediation; Soil contamination; Military; Pollutant removal; Leaching; Uranium ER - TY - JOUR T1 - Large variations in vent fluid CO (sub 2) / (super 3) He ratios signal rapid changes in magma chemistry at Loihi Seamount AN - 1320155744; 2013-026980 JF - Eos, Transactions, American Geophysical Union AU - Hilton, David R AU - McMurtry, Gary M AU - Goff, Fraser AU - Anonymous Y1 - 1998/11/10/ PY - 1998 DA - 1998 Nov 10 SP - 1022 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - East Pacific KW - tholeiite KW - volcanic rocks KW - Northeast Pacific KW - igneous rocks KW - hydrothermal vents KW - melts KW - hydrothermal conditions KW - gases KW - carbon dioxide KW - models KW - Loihi Seamount KW - North Pacific KW - noble gases KW - magmas KW - Pacific Ocean KW - basalts KW - helium KW - chemical composition KW - chemical ratios KW - vents KW - chemical fractionation KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1320155744?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Large+variations+in+vent+fluid+CO+%28sub+2%29+%2F+%28super+3%29+He+ratios+signal+rapid+changes+in+magma+chemistry+at+Loihi+Seamount&rft.au=Hilton%2C+David+R%3BMcMurtry%2C+Gary+M%3BGoff%2C+Fraser%3BAnonymous&rft.aulast=Hilton&rft.aufirst=David&rft.date=1998-11-10&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=1022&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2013-03-28 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - basalts; carbon dioxide; chemical composition; chemical fractionation; chemical ratios; East Pacific; gases; helium; hydrothermal conditions; hydrothermal vents; igneous rocks; Loihi Seamount; magmas; melts; models; noble gases; North Pacific; Northeast Pacific; Pacific Ocean; tholeiite; vents; volcanic rocks ER - TY - JOUR T1 - Sr, Nd and Hf isotope compositions in kimberlites and carbonatites from South Africa; constraints on upper mantle metasomatism AN - 1320154971; 2013-026959 JF - Eos, Transactions, American Geophysical Union AU - Bizimis, Michael AU - Salters, Vincent J M AU - Dawson, J B AU - Anonymous Y1 - 1998/11/10/ PY - 1998 DA - 1998 Nov 10 SP - 1018 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - upper mantle KW - volcanic rocks KW - igneous rocks KW - mantle KW - metasomatism KW - initial neodymium KW - ultramafics KW - Lu/Hf KW - plutonic rocks KW - Sm/Nd KW - kimberlite KW - metals KW - Southern Africa KW - basalts KW - peridotites KW - garnet peridotite KW - Africa KW - carbonatites KW - South Africa KW - rare earths KW - ocean-island basalts KW - 18:Solid-earth geophysics KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1320154971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Sr%2C+Nd+and+Hf+isotope+compositions+in+kimberlites+and+carbonatites+from+South+Africa%3B+constraints+on+upper+mantle+metasomatism&rft.au=Bizimis%2C+Michael%3BSalters%2C+Vincent+J+M%3BDawson%2C+J+B%3BAnonymous&rft.aulast=Bizimis&rft.aufirst=Michael&rft.date=1998-11-10&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=1018&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2013-03-28 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Africa; basalts; carbonatites; garnet peridotite; igneous rocks; initial neodymium; kimberlite; Lu/Hf; mantle; metals; metasomatism; ocean-island basalts; peridotites; plutonic rocks; rare earths; Sm/Nd; South Africa; Southern Africa; ultramafics; upper mantle; volcanic rocks ER - TY - JOUR T1 - Lithospheric structure of the Tarim Basin and Tien Shan, Central Asia from group velocity inversions and regional waveform modeling AN - 742899131; 2010-035296 JF - Eos, Transactions, American Geophysical Union AU - Whitted, Craig A AU - Zandt, George AU - Taylor, Steven R AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 665 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - focal mechanism KW - Far East KW - guided waves KW - Tien Shan KW - Xinjiang China KW - techniques KW - inverse problem KW - elastic waves KW - waveforms KW - Tarim Basin KW - Rayleigh waves KW - Mohorovicic discontinuity KW - Central Asia KW - surface waves KW - moment tensors KW - velocity KW - seismic waves KW - Asia KW - earthquakes KW - crust KW - China KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742899131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Lithospheric+structure+of+the+Tarim+Basin+and+Tien+Shan%2C+Central+Asia+from+group+velocity+inversions+and+regional+waveform+modeling&rft.au=Whitted%2C+Craig+A%3BZandt%2C+George%3BTaylor%2C+Steven+R%3BAnonymous&rft.aulast=Whitted&rft.aufirst=Craig&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=665&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; Central Asia; China; crust; earthquakes; elastic waves; Far East; focal mechanism; guided waves; inverse problem; Mohorovicic discontinuity; moment tensors; Rayleigh waves; seismic waves; surface waves; Tarim Basin; techniques; Tien Shan; velocity; waveforms; Xinjiang China ER - TY - JOUR T1 - Broadband source modeling of the large intraplate 1997 Tibet (M (sub s) = 7.9) earthquake and the tectonic implications AN - 742879215; 2010-035251 JF - Eos, Transactions, American Geophysical Union AU - Velasco, Aaron A AU - Meares, Kimberly AU - Beck, Susan AU - Ammon, Charles J AU - Simons, Mark AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 658 EP - 659 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - focal mechanism KW - Far East KW - magnitude KW - calibration KW - strike-slip faults KW - Lop Nor Lake KW - Xizang earthquake 1998 KW - Xizang China KW - broad-band spectra KW - intraplate processes KW - tectonics KW - seismic energy KW - Asia KW - earthquakes KW - faults KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742879215?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Broadband+source+modeling+of+the+large+intraplate+1997+Tibet+%28M+%28sub+s%29+%3D+7.9%29+earthquake+and+the+tectonic+implications&rft.au=Velasco%2C+Aaron+A%3BMeares%2C+Kimberly%3BBeck%2C+Susan%3BAmmon%2C+Charles+J%3BSimons%2C+Mark%3BAnonymous&rft.aulast=Velasco&rft.aufirst=Aaron&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=658&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; broad-band spectra; calibration; China; earthquakes; Far East; faults; focal mechanism; intraplate processes; Lop Nor Lake; magnitude; seismic energy; strike-slip faults; tectonics; Xizang China; Xizang earthquake 1998 ER - TY - JOUR T1 - Large variations in vent fluid CO (sub 2) / (super 3) He ratios signal rapid changes in magma chemistry at Loihi Seamount, Hawaii AN - 52524922; 1999-006070 AB - Analyses are presented of fluids from the Loihi hydrothermal vents, collected after the most intense period (July-August, 1996) of seismic activity yet recorded for any Hawaiian volcano. Analyses include SiO (sub 2) , (He/Ne), CO (sub 2) and CO (sub 2) / (super 3) He. The results indicate large, systematic changes in the CO (sub 2) / (super 3) He ratios of the vent fluids compared to pre-seismic crisis values, and a sharp transition from alkaline to tholeiitic magma, having supplied volatiles to the vents. The anticipated evolution of the Hawaiian plume to a shield-building tholeiitic magmatism is highly episodic at Loihi and incomplete. JF - Nature (London) AU - Hilton, D R AU - McMurtry, G M AU - Goff, F Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 359 EP - 362 PB - Macmillan Journals, London VL - 396 IS - 6709 SN - 0028-0836, 0028-0836 KW - United States KW - sea water KW - volcanic rocks KW - Northeast Pacific KW - isotopes KW - igneous rocks KW - hydrothermal vents KW - He-3 KW - stable isotopes KW - variations KW - geochemical indicators KW - carbon dioxide KW - tholeiitic composition KW - Loihi Seamount KW - seismicity KW - noble gases KW - basalts KW - helium KW - geochemistry KW - chemical ratios KW - vents KW - East Pacific KW - concentration KW - Hawaii KW - East Pacific Ocean Islands KW - hydrochemistry KW - alkalic composition KW - North Pacific KW - magmas KW - Pacific Ocean KW - submarine volcanoes KW - Oceania KW - volcanoes KW - Polynesia KW - 02B:Hydrochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52524922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Large+variations+in+vent+fluid+CO+%28sub+2%29+%2F+%28super+3%29+He+ratios+signal+rapid+changes+in+magma+chemistry+at+Loihi+Seamount%2C+Hawaii&rft.au=Hilton%2C+D+R%3BMcMurtry%2C+G+M%3BGoff%2C+F&rft.aulast=Hilton&rft.aufirst=D&rft.date=1998-11-01&rft.volume=396&rft.issue=6709&rft.spage=359&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F24603 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - alkalic composition; basalts; carbon dioxide; chemical ratios; concentration; East Pacific; East Pacific Ocean Islands; geochemical indicators; geochemistry; Hawaii; He-3; helium; hydrochemistry; hydrothermal vents; igneous rocks; isotopes; Loihi Seamount; magmas; noble gases; North Pacific; Northeast Pacific; Oceania; Pacific Ocean; Polynesia; sea water; seismicity; stable isotopes; submarine volcanoes; tholeiitic composition; United States; variations; vents; volcanic rocks; volcanoes DO - http://dx.doi.org/10.1038/24603 ER - TY - JOUR T1 - Uranium-thorium-protactinium dating systematics AN - 52489293; 1999-032775 AB - Models are presented for establishing the basic systematics for U-Th-Pa dating; initial conditions include: initial (super 230) Th and (super 231) Pa are assumed to be zero, and (super 231) Th, (super 234) Th and (super 234) Pa are assumed to be in secular equilibrium at the time of sample formation. The models use [ (super 231) Pa/ (super 235) U] vs [ (super 230) Th/ (super 238) U] or [ (super 231) Pa/ (super 235) U] vs [ (super 230) Th/ (super 234) U] diagrams which are analogous to (super 206) Pb/ (super 238) U vs (super 207) Pb/ (super 235) U concordia diagrams. Samples with concordant (super 230) Th and (super 231) Pa ages will be likely candidates for closed-system histories. (super 231) Pa TIMS methods may be the only high precision check for (super 230) Th dating for non-marine samples such as bones, teeth and speleothems. For marine samples the initial (super 234) U value can also be compared to the modern marine value of approximately 150. Other applications and implications of the systematics are discussed. The models may help to constrain the nature of diagenetic processes and ages of materials that have behaved as open systems. JF - Geochimica et Cosmochimica Acta AU - Cheng, H AU - Edwards, R Lawrence AU - Murrell, M T AU - Benjamin, T M Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 3437 EP - 3452 PB - Pergamon, Oxford VL - 62 IS - 21-22 SN - 0016-7037, 0016-7037 KW - methods KW - concentration KW - precision KW - U/Th/Pa KW - open systems KW - metals KW - absolute age KW - theoretical models KW - uranium KW - actinides KW - Th/U KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52489293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Uranium-thorium-protactinium+dating+systematics&rft.au=Cheng%2C+H%3BEdwards%2C+R+Lawrence%3BMurrell%2C+M+T%3BBenjamin%2C+T+M&rft.aulast=Cheng&rft.aufirst=H&rft.date=1998-11-01&rft.volume=62&rft.issue=21-22&rft.spage=3437&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900255-5 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 65 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; actinides; concentration; metals; methods; open systems; precision; Th/U; theoretical models; U/Th/Pa; uranium DO - http://dx.doi.org/10.1016/S0016-7037(98)00255-5 ER - TY - JOUR T1 - Three-dimensional numerical simulations of mantle convection in Io AN - 51807031; 2004-067549 JF - Eos, Transactions, American Geophysical Union AU - Schubert, Gerald AU - Tackley, Paul J AU - Matas, Jean-Philippe AU - Glatzmaier, Gary A AU - Ratcliff, James Todd AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 529 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - three-dimensional models KW - isotopes KW - numerical analysis KW - Jupiter KW - mantle KW - Io Satellite KW - anomalies KW - Galilean satellites KW - convection KW - simulation KW - magnetic field KW - temperature KW - giant planets KW - planets KW - asthenosphere KW - Rayleigh number KW - heat flow KW - core KW - outer planets KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51807031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Three-dimensional+numerical+simulations+of+mantle+convection+in+Io&rft.au=Schubert%2C+Gerald%3BTackley%2C+Paul+J%3BMatas%2C+Jean-Philippe%3BGlatzmaier%2C+Gary+A%3BRatcliff%2C+James+Todd%3BAnonymous&rft.aulast=Schubert&rft.aufirst=Gerald&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=529&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anomalies; asthenosphere; convection; core; Galilean satellites; giant planets; heat flow; Io Satellite; isotopes; Jupiter; magnetic field; mantle; numerical analysis; outer planets; planets; Rayleigh number; satellites; silicates; simulation; temperature; three-dimensional models ER - TY - JOUR T1 - Numerical simulations of magnetoconvection in the core of Io AN - 51805889; 2004-067550 JF - Eos, Transactions, American Geophysical Union AU - Glatzmaier, Gary A AU - Tackley, Paul J AU - Kivelson, Margaret G AU - Moore, William B AU - Roberts, Paul H AU - Schubert, Gerald AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 529 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - heat flux KW - numerical analysis KW - tidal heating KW - Jupiter KW - mantle KW - Io Satellite KW - Galilean satellites KW - convection KW - simulation KW - core-mantle boundary KW - magnetic field KW - measurement KW - giant planets KW - planets KW - gravity field KW - core KW - outer planets KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51805889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Numerical+simulations+of+magnetoconvection+in+the+core+of+Io&rft.au=Glatzmaier%2C+Gary+A%3BTackley%2C+Paul+J%3BKivelson%2C+Margaret+G%3BMoore%2C+William+B%3BRoberts%2C+Paul+H%3BSchubert%2C+Gerald%3BAnonymous&rft.aulast=Glatzmaier&rft.aufirst=Gary&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=529&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; core; core-mantle boundary; Galilean satellites; giant planets; gravity field; heat flux; Io Satellite; Jupiter; magnetic field; mantle; measurement; numerical analysis; outer planets; planets; satellites; simulation; tidal heating ER - TY - JOUR T1 - Use of propagation path corrections to improve regional seismic event location in western China AN - 51784787; 2004-082276 JF - Eos, Transactions, American Geophysical Union AU - Steck, Lee K AU - Velasco, Aaron A AU - Cogbill, Allen H AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 555 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - P-waves KW - body waves KW - Far East KW - seismicity KW - propagation KW - elastic waves KW - seismic waves KW - western China KW - Asia KW - arrival time KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51784787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Use+of+propagation+path+corrections+to+improve+regional+seismic+event+location+in+western+China&rft.au=Steck%2C+Lee+K%3BVelasco%2C+Aaron+A%3BCogbill%2C+Allen+H%3BAnonymous&rft.aulast=Steck&rft.aufirst=Lee&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=555&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - arrival time; Asia; body waves; China; elastic waves; Far East; P-waves; propagation; seismic waves; seismicity; western China ER - TY - JOUR T1 - A simple procedure for kriging left-censored data AN - 51784642; 2004-082275 JF - Eos, Transactions, American Geophysical Union AU - Anderson, Kevin K AU - Phillips, W Scott AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 555 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - spatial data KW - guided waves KW - explosions KW - statistical analysis KW - magnitude KW - Lg-waves KW - kriging KW - elastic waves KW - surface waves KW - seismicity KW - seismic waves KW - algorithms KW - earthquakes KW - instruments KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51784642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+simple+procedure+for+kriging+left-censored+data&rft.au=Anderson%2C+Kevin+K%3BPhillips%2C+W+Scott%3BAnonymous&rft.aulast=Anderson&rft.aufirst=Kevin&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=555&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - algorithms; Comprehensive Test Ban Treaty; earthquakes; elastic waves; explosions; guided waves; instruments; kriging; Lg-waves; magnitude; seismic waves; seismicity; spatial data; statistical analysis; surface waves ER - TY - JOUR T1 - Moment tensor inversion of single-hole, mining cast-blasts AN - 51782435; 2004-082289 JF - Eos, Transactions, American Geophysical Union AU - Yang, Xiaoning AU - Stump, Brian W AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 557 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - seismicity KW - explosions KW - blasting KW - seismic moment KW - velocity structure KW - acceleration KW - seismic sources KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51782435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Moment+tensor+inversion+of+single-hole%2C+mining+cast-blasts&rft.au=Yang%2C+Xiaoning%3BStump%2C+Brian+W%3BAnonymous&rft.aulast=Yang&rft.aufirst=Xiaoning&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acceleration; blasting; earthquakes; explosions; seismic moment; seismic sources; seismicity; velocity structure ER - TY - JOUR T1 - Transient flow and its effect on solute transport in bounded, unsaturated porous media AN - 51741238; 2005-024228 JF - Eos, Transactions, American Geophysical Union AU - Zhang, Dongxian AU - Sun, Alexander Y AU - Rubin, Yoram AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 368 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - solute transport KW - stochastic processes KW - numerical analysis KW - statistical analysis KW - unsaturated zone KW - porous materials KW - hydrogeology KW - equations KW - preferential flow KW - boundary conditions KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51741238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Transient+flow+and+its+effect+on+solute+transport+in+bounded%2C+unsaturated+porous+media&rft.au=Zhang%2C+Dongxian%3BSun%2C+Alexander+Y%3BRubin%2C+Yoram%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Dongxian&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=368&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - boundary conditions; equations; hydrogeology; numerical analysis; porous materials; preferential flow; solute transport; statistical analysis; stochastic processes; unsaturated zone ER - TY - JOUR T1 - Using experimentally-determined mineral dissolution/precipitation rates in field-scale reactive transport problems AN - 51740889; 2005-024092 JF - Eos, Transactions, American Geophysical Union AU - Steefel, Carl I AU - Lichtner, Peter C AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 342 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - solute transport KW - mines KW - experimental studies KW - Quebec KW - pollutants KW - pollution KW - mineral-water interface KW - Noranda Quebec KW - solution KW - ground water KW - aquifers KW - portlandite KW - Canada KW - Jordan KW - precipitation KW - oxides KW - Eastern Canada KW - Asia KW - tailings KW - Middle East KW - Maqarin Jordan KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51740889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Using+experimentally-determined+mineral+dissolution%2Fprecipitation+rates+in+field-scale+reactive+transport+problems&rft.au=Steefel%2C+Carl+I%3BLichtner%2C+Peter+C%3BAnonymous&rft.aulast=Steefel&rft.aufirst=Carl&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=342&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; Asia; Canada; Eastern Canada; experimental studies; ground water; Jordan; Maqarin Jordan; Middle East; mineral-water interface; mines; Noranda Quebec; oxides; pollutants; pollution; portlandite; precipitation; Quebec; solute transport; solution; tailings ER - TY - JOUR T1 - Development of a field-scale, colloid-facilitated solute transport model for fractured volcanic tuff AN - 51739478; 2005-024099 JF - Eos, Transactions, American Geophysical Union AU - Wolfsberg, Andrew V AU - McGraw, Maureen A AU - Roemer, Gaius J C AU - Cherry, Terry A AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 343 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - solute transport KW - hydrology KW - fractured materials KW - colloidal materials KW - volcanic rocks KW - numerical models KW - pollutants KW - igneous rocks KW - pollution KW - preferential flow KW - pyroclastics KW - Nevada Test Site KW - finite element analysis KW - tuff KW - Nevada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51739478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Development+of+a+field-scale%2C+colloid-facilitated+solute+transport+model+for+fractured+volcanic+tuff&rft.au=Wolfsberg%2C+Andrew+V%3BMcGraw%2C+Maureen+A%3BRoemer%2C+Gaius+J+C%3BCherry%2C+Terry+A%3BAnonymous&rft.aulast=Wolfsberg&rft.aufirst=Andrew&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=343&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - colloidal materials; finite element analysis; fractured materials; hydrology; igneous rocks; Nevada; Nevada Test Site; numerical models; pollutants; pollution; preferential flow; pyroclastics; solute transport; tuff; United States; volcanic rocks ER - TY - JOUR T1 - Nonlocal finite element analysis of conditional steady state unsaturated flow in bounded randomly heterogeneous soils using Kirchhoff transformation AN - 51739152; 2005-024271 JF - Eos, Transactions, American Geophysical Union AU - Lu, Zhiming AU - Guadagnini, Alberto AU - Tartakovsky, Daniel M AU - Neuman, Shlomo P AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 377 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - finite element analysis KW - heterogeneous materials KW - steady flow KW - Monte Carlo analysis KW - mathematical methods KW - steady-state processes KW - statistical analysis KW - unsaturated zone KW - Kirchhoff integral KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51739152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Nonlocal+finite+element+analysis+of+conditional+steady+state+unsaturated+flow+in+bounded+randomly+heterogeneous+soils+using+Kirchhoff+transformation&rft.au=Lu%2C+Zhiming%3BGuadagnini%2C+Alberto%3BTartakovsky%2C+Daniel+M%3BNeuman%2C+Shlomo+P%3BAnonymous&rft.aulast=Lu&rft.aufirst=Zhiming&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - finite element analysis; heterogeneous materials; Kirchhoff integral; mathematical methods; Monte Carlo analysis; soils; statistical analysis; steady flow; steady-state processes; unsaturated zone ER - TY - JOUR T1 - Wetting front propagation in heterogeneous soils AN - 51738607; 2005-024274 JF - Eos, Transactions, American Geophysical Union AU - Tartakovsky, Daniel M AU - Winter, C L AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 378 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - numerical models KW - heterogeneous materials KW - moisture KW - unsaturated zone KW - porous materials KW - hydraulic conductivity KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51738607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Wetting+front+propagation+in+heterogeneous+soils&rft.au=Tartakovsky%2C+Daniel+M%3BWinter%2C+C+L%3BAnonymous&rft.aulast=Tartakovsky&rft.aufirst=Daniel&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=378&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - heterogeneous materials; hydraulic conductivity; moisture; numerical models; porous materials; soils; unsaturated zone ER - TY - JOUR T1 - Background concentrations of radionuclides and trace metals in river and reservoir sediments near Los Alamos, New Mexico AN - 51737919; 2005-024125 JF - Eos, Transactions, American Geophysical Union AU - McLin, Stephen G AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 347 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - reservoirs KW - isotopes KW - stream sediments KW - pollutants KW - surface water KW - pollution KW - New Mexico KW - Los Alamos County New Mexico KW - rivers KW - Los Alamos National Laboratory KW - environmental analysis KW - radioactive isotopes KW - sediments KW - lacustrine environment KW - fluvial features KW - trace metals KW - Colorado KW - fluvial environment KW - lake sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51737919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Background+concentrations+of+radionuclides+and+trace+metals+in+river+and+reservoir+sediments+near+Los+Alamos%2C+New+Mexico&rft.au=McLin%2C+Stephen+G%3BAnonymous&rft.aulast=McLin&rft.aufirst=Stephen&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=347&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Colorado; environmental analysis; fluvial environment; fluvial features; isotopes; lacustrine environment; lake sediments; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; pollutants; pollution; radioactive isotopes; reservoirs; rivers; sediments; stream sediments; surface water; trace metals; United States ER - TY - JOUR T1 - Uranium and thorium-series isotopes in fresh groundwater at the INEEL AN - 51737028; 2005-024098 JF - Eos, Transactions, American Geophysical Union AU - Roback, Robert C AU - Murrell, Michael T AU - Nunn, Andrew AU - Luo, Shangde AU - Ku, T L AU - McLing, Travis AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 343 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Snake River Plain Aquifer KW - Idaho KW - alkaline earth metals KW - radium KW - isotopes KW - pollutants KW - government agencies KW - pollution KW - lead KW - U-238/Pb-204 KW - uranium disequilibrium KW - ground water KW - INEEL KW - Ra-226 KW - radioactive isotopes KW - metals KW - protactinium KW - thorium KW - uranium KW - actinides KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51737028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Uranium+and+thorium-series+isotopes+in+fresh+groundwater+at+the+INEEL&rft.au=Roback%2C+Robert+C%3BMurrell%2C+Michael+T%3BNunn%2C+Andrew%3BLuo%2C+Shangde%3BKu%2C+T+L%3BMcLing%2C+Travis%3BAnonymous&rft.aulast=Roback&rft.aufirst=Robert&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=343&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; government agencies; ground water; Idaho; INEEL; isotopes; lead; metals; pollutants; pollution; protactinium; Ra-226; radioactive isotopes; radium; Snake River Plain Aquifer; thorium; U-238/Pb-204; United States; uranium; uranium disequilibrium ER - TY - JOUR T1 - Assessing in-situ radionuclide transport based on uranium-series disequilibria in groundwater AN - 51736292; 2005-024153 JF - Eos, Transactions, American Geophysical Union AU - Luo, Shangde AU - Ku, Teh-Lung AU - Roback, Robert C AU - Murrell, Mike AU - McLing, Travis AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 354 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - sorption KW - desorption KW - isotopes KW - government agencies KW - radon KW - uranium disequilibrium KW - ground water KW - Ra-226 KW - radioactive isotopes KW - transport KW - noble gases KW - Idaho KW - alkaline earth metals KW - radium KW - pollutants KW - pollution KW - migration of elements KW - Little Lost River basin KW - Rn-222 KW - INEEL KW - metals KW - thorium KW - uranium KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51736292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Assessing+in-situ+radionuclide+transport+based+on+uranium-series+disequilibria+in+groundwater&rft.au=Luo%2C+Shangde%3BKu%2C+Teh-Lung%3BRoback%2C+Robert+C%3BMurrell%2C+Mike%3BMcLing%2C+Travis%3BAnonymous&rft.aulast=Luo&rft.aufirst=Shangde&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=354&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; desorption; government agencies; ground water; Idaho; INEEL; isotopes; Little Lost River basin; metals; migration of elements; noble gases; pollutants; pollution; Ra-226; radioactive isotopes; radium; radon; Rn-222; sorption; thorium; transport; United States; uranium; uranium disequilibrium ER - TY - JOUR T1 - Monitoring and modeling the field performance of landfill covers in a semiarid environment at Los Alamos, New Mexico AN - 51735543; 2005-024084 JF - Eos, Transactions, American Geophysical Union AU - Nyhan, John W AU - McCulla, William H AU - Schofield, Tracy G AU - Salazar, Johnny A AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 341 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - terrestrial environment KW - monitoring KW - pollutants KW - landfills KW - semi-arid environment KW - geophysical methods KW - electrical methods KW - pollution KW - New Mexico KW - Los Alamos County New Mexico KW - capillary water KW - waste disposal KW - time domain reflectometry KW - disposal barriers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51735543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Monitoring+and+modeling+the+field+performance+of+landfill+covers+in+a+semiarid+environment+at+Los+Alamos%2C+New+Mexico&rft.au=Nyhan%2C+John+W%3BMcCulla%2C+William+H%3BSchofield%2C+Tracy+G%3BSalazar%2C+Johnny+A%3BAnonymous&rft.aulast=Nyhan&rft.aufirst=John&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - capillary water; disposal barriers; electrical methods; geophysical methods; landfills; Los Alamos County New Mexico; monitoring; New Mexico; pollutants; pollution; semi-arid environment; terrestrial environment; time domain reflectometry; United States; waste disposal ER - TY - JOUR T1 - Insulating effect of a stationary continent in 3-D mantle convection models AN - 51733750; 2005-025553 JF - Eos, Transactions, American Geophysical Union AU - Lowman, Julian P AU - Gable, Carl W AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 879 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - models KW - plate tectonics KW - plate collision KW - three-dimensional models KW - velocity structure KW - mantle KW - effects KW - heterogeneity KW - convection KW - simulation KW - geometry KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51733750?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Insulating+effect+of+a+stationary+continent+in+3-D+mantle+convection+models&rft.au=Lowman%2C+Julian+P%3BGable%2C+Carl+W%3BAnonymous&rft.aulast=Lowman&rft.aufirst=Julian&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=879&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; effects; geometry; heterogeneity; mantle; models; plate collision; plate tectonics; simulation; three-dimensional models; velocity structure ER - TY - JOUR T1 - Cosmogenic (super 21) Ne in quartz as a potential paleoaltimeter; case study from the 27 Ma Fish Canyon Tuff, Colorado AN - 51733646; 2005-025530 JF - Eos, Transactions, American Geophysical Union AU - Libarkin, J C AU - Chase, C G AU - Quade, J AU - Poths, J AU - McIntosh, William C AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 875 EP - 876 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - silicates KW - Ne-21 KW - silica minerals KW - isotopes KW - Paleogene KW - paleogeography KW - stable isotopes KW - Cenozoic KW - case studies KW - Tertiary KW - noble gases KW - neon KW - quartz KW - petrography KW - framework silicates KW - Fish Canyon Tuff KW - Colorado KW - Oligocene KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51733646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Cosmogenic+%28super+21%29+Ne+in+quartz+as+a+potential+paleoaltimeter%3B+case+study+from+the+27+Ma+Fish+Canyon+Tuff%2C+Colorado&rft.au=Libarkin%2C+J+C%3BChase%2C+C+G%3BQuade%2C+J%3BPoths%2C+J%3BMcIntosh%2C+William+C%3BAnonymous&rft.aulast=Libarkin&rft.aufirst=J&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=875&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - case studies; Cenozoic; Colorado; Fish Canyon Tuff; framework silicates; isotopes; Ne-21; neon; noble gases; Oligocene; Paleogene; paleogeography; petrography; quartz; silica minerals; silicates; stable isotopes; Tertiary; United States ER - TY - JOUR T1 - Continental stresses and topography induced by active mantle upwellings AN - 51733313; 2005-025555 JF - Eos, Transactions, American Geophysical Union AU - Ratcliff, James Todd AU - Lowman, Julian P AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 879 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - upwelling KW - viscosity KW - heat flow KW - stress KW - mantle KW - convection KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51733313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Continental+stresses+and+topography+induced+by+active+mantle+upwellings&rft.au=Ratcliff%2C+James+Todd%3BLowman%2C+Julian+P%3BAnonymous&rft.aulast=Ratcliff&rft.aufirst=James&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=879&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; heat flow; mantle; stress; upwelling; viscosity ER - TY - JOUR T1 - Simulation of dynamic recrystallization of olivine AN - 51731275; 2005-025585 JF - Eos, Transactions, American Geophysical Union AU - Wenk, Hans-Rudolf AU - Tome, Carlos AU - Montagnat, Maurine AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 884 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - orientation KW - strain KW - mantle KW - phase transitions KW - olivine group KW - simulation KW - recrystallization KW - nesosilicates KW - olivine KW - orthosilicates KW - P-T conditions KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51731275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Simulation+of+dynamic+recrystallization+of+olivine&rft.au=Wenk%2C+Hans-Rudolf%3BTome%2C+Carlos%3BMontagnat%2C+Maurine%3BAnonymous&rft.aulast=Wenk&rft.aufirst=Hans-Rudolf&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=884&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - mantle; nesosilicates; olivine; olivine group; orientation; orthosilicates; P-T conditions; phase transitions; recrystallization; silicates; simulation; strain ER - TY - JOUR T1 - Electrical conductivity of mantle olivine; weak pressure dependence AN - 51730727; 2005-025465 JF - Eos, Transactions, American Geophysical Union AU - Shankland, Thomas J AU - Xu, Yousheng AU - Duba, A G AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 866 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - nesosilicates KW - upper mantle KW - electrical conductivity KW - pressure KW - olivine KW - orthosilicates KW - mantle KW - olivine group KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730727?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Electrical+conductivity+of+mantle+olivine%3B+weak+pressure+dependence&rft.au=Shankland%2C+Thomas+J%3BXu%2C+Yousheng%3BDuba%2C+A+G%3BAnonymous&rft.aulast=Shankland&rft.aufirst=Thomas&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=866&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - electrical conductivity; mantle; nesosilicates; olivine; olivine group; orthosilicates; pressure; silicates; upper mantle ER - TY - JOUR T1 - Application of resonant ultrasound spectroscopy (RUS) to determine the elastic properties of rock samples AN - 51649636; 2006-004936 JF - Eos, Transactions, American Geophysical Union AU - Ulrich, T J AU - McCall, K R AU - Johnson, P A AU - Darling, T W AU - Migliori, A AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 842 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - volcanic rocks KW - igneous rocks KW - elastic properties KW - piezoelectric properties KW - mantle KW - techniques KW - inverse problem KW - resonant ultrasound spectroscopy KW - deformation KW - heterogeneous materials KW - basalts KW - spectra KW - anisotropy KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51649636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Application+of+resonant+ultrasound+spectroscopy+%28RUS%29+to+determine+the+elastic+properties+of+rock+samples&rft.au=Ulrich%2C+T+J%3BMcCall%2C+K+R%3BJohnson%2C+P+A%3BDarling%2C+T+W%3BMigliori%2C+A%3BAnonymous&rft.aulast=Ulrich&rft.aufirst=T&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=842&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anisotropy; basalts; deformation; elastic properties; heterogeneous materials; igneous rocks; inverse problem; mantle; piezoelectric properties; resonant ultrasound spectroscopy; spectra; techniques; volcanic rocks ER - TY - JOUR T1 - Mixing of the upper and lower mantle by flow associated with plate motions AN - 51647186; 2006-005477 JF - Eos, Transactions, American Geophysical Union AU - Stegman, Dave R AU - Richards, Mark A AU - Baumgardner, John R AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 586 EP - 587 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - upper mantle KW - three-dimensional models KW - numerical analysis KW - mantle KW - convection KW - lower mantle KW - geodynamics KW - plate tectonics KW - viscosity KW - mixing KW - trace elements KW - mass transfer KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51647186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Mixing+of+the+upper+and+lower+mantle+by+flow+associated+with+plate+motions&rft.au=Stegman%2C+Dave+R%3BRichards%2C+Mark+A%3BBaumgardner%2C+John+R%3BAnonymous&rft.aulast=Stegman&rft.aufirst=Dave&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=586&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; geodynamics; lower mantle; mantle; mass transfer; mixing; numerical analysis; plate tectonics; three-dimensional models; trace elements; upper mantle; viscosity ER - TY - JOUR T1 - Dynamos in planets that have large solid inner cores AN - 51647073; 2006-006566 JF - Eos, Transactions, American Geophysical Union AU - Roberts, Paul H AU - Glatzmaier, Gary A AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 232 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - solid phase KW - planets KW - interior KW - polarization KW - planetary interiors KW - dynamos KW - planetology KW - fluid phase KW - core KW - inner core KW - magnetic field KW - 18:Solid-earth geophysics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51647073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Dynamos+in+planets+that+have+large+solid+inner+cores&rft.au=Roberts%2C+Paul+H%3BGlatzmaier%2C+Gary+A%3BAnonymous&rft.aulast=Roberts&rft.aufirst=Paul&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=232&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 2 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - core; dynamos; fluid phase; inner core; interior; magnetic field; planetary interiors; planetology; planets; polarization; solid phase ER - TY - JOUR T1 - Assessing paleosecular variation statistical methods AN - 51646922; 2006-006581 JF - Eos, Transactions, American Geophysical Union AU - Hongre, Lionel AU - Coe, Robert AU - Glatzmaier, Gary A AU - Roberts, Paul AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 234 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - paleoenvironment KW - secular variations KW - dynamos KW - statistical analysis KW - magnetic inclination KW - magnetic declination KW - techniques KW - paleomagnetism KW - anomalies KW - simulation KW - magnetic field KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Assessing+paleosecular+variation+statistical+methods&rft.au=Hongre%2C+Lionel%3BCoe%2C+Robert%3BGlatzmaier%2C+Gary+A%3BRoberts%2C+Paul%3BAnonymous&rft.aulast=Hongre&rft.aufirst=Lionel&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=234&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anomalies; dynamos; magnetic declination; magnetic field; magnetic inclination; paleoenvironment; paleomagnetism; secular variations; simulation; statistical analysis; techniques ER - TY - JOUR T1 - A parameter space study for spherical shell dynamos AN - 51646220; 2006-006564 JF - Eos, Transactions, American Geophysical Union AU - Christensen, Ulrich R AU - Olson, Peter AU - Glatzmaier, Gary A AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 232 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - Rayleigh number KW - sphericity KW - dynamos KW - stress KW - magnetization KW - Reynolds number KW - paleomagnetism KW - spectra KW - convection KW - spherical models KW - magnetic field KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+parameter+space+study+for+spherical+shell+dynamos&rft.au=Christensen%2C+Ulrich+R%3BOlson%2C+Peter%3BGlatzmaier%2C+Gary+A%3BAnonymous&rft.aulast=Christensen&rft.aufirst=Ulrich&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=232&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; dynamos; magnetic field; magnetization; paleomagnetism; Rayleigh number; Reynolds number; spectra; spherical models; sphericity; stress ER - TY - JOUR T1 - Identifying zones of effective matrix or fracture mineral interactions in radionuclide retention AN - 51646005; 2006-006668 JF - Eos, Transactions, American Geophysical Union AU - Vaniman, David T AU - Bish, David L AU - Chipera, Steve J AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 248 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - silicates KW - hazardous waste KW - sorption KW - X-ray diffraction data KW - isotopes KW - fluid phase KW - radioactive waste KW - ground water KW - Cenozoic KW - fractures KW - radioactive isotopes KW - Bandelier Tuff KW - water-rock interaction KW - movement KW - retention KW - Yucca Mountain KW - Nevada KW - soils KW - Quaternary KW - pollutants KW - smectite KW - pollution KW - deformation KW - Nye County Nevada KW - boundary interactions KW - clay minerals KW - Pleistocene KW - sheet silicates KW - waste disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646005?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Identifying+zones+of+effective+matrix+or+fracture+mineral+interactions+in+radionuclide+retention&rft.au=Vaniman%2C+David+T%3BBish%2C+David+L%3BChipera%2C+Steve+J%3BAnonymous&rft.aulast=Vaniman&rft.aufirst=David&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=248&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; boundary interactions; Cenozoic; clay minerals; deformation; fluid phase; fractures; ground water; hazardous waste; isotopes; movement; Nevada; Nye County Nevada; Pleistocene; pollutants; pollution; Quaternary; radioactive isotopes; radioactive waste; retention; sheet silicates; silicates; smectite; soils; sorption; United States; waste disposal; water-rock interaction; X-ray diffraction data; Yucca Mountain ER - TY - JOUR T1 - An automated process of integrating geologic framework and computational grids for a regional groundwater flow model of the Espanola Basin, northern New Mexico AN - 51645294; 2006-006629 JF - Eos, Transactions, American Geophysical Union AU - Witkowski, Marc S AU - Gable, Carl W AU - Keating, Elizabeth H AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 242 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - models KW - hydrology KW - movement KW - data processing KW - New Mexico KW - Espanola Basin KW - ground water KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51645294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=An+automated+process+of+integrating+geologic+framework+and+computational+grids+for+a+regional+groundwater+flow+model+of+the+Espanola+Basin%2C+northern+New+Mexico&rft.au=Witkowski%2C+Marc+S%3BGable%2C+Carl+W%3BKeating%2C+Elizabeth+H%3BAnonymous&rft.aulast=Witkowski&rft.aufirst=Marc&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=242&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - data processing; Espanola Basin; ground water; hydrology; models; movement; New Mexico; United States ER - TY - JOUR T1 - Inversion of magnetotelluric data in the presence of strong bathymetry and topography AN - 51644410; 2006-006542 JF - Eos, Transactions, American Geophysical Union AU - Li, Shenghui AU - Aprea, Claudia M AU - Booker, John R AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 229 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - electrical conductivity KW - topography KW - geophysical surveys KW - geophysical methods KW - surveys KW - inverse problem KW - bathymetry KW - two-dimensional models KW - magnetotelluric methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51644410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Inversion+of+magnetotelluric+data+in+the+presence+of+strong+bathymetry+and+topography&rft.au=Li%2C+Shenghui%3BAprea%2C+Claudia+M%3BBooker%2C+John+R%3BAnonymous&rft.aulast=Li&rft.aufirst=Shenghui&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bathymetry; electrical conductivity; geophysical methods; geophysical surveys; inverse problem; magnetotelluric methods; surveys; topography; two-dimensional models ER - TY - JOUR T1 - Lagrangian analysis of reactive solution transport in unsaturated heterogeneous formations; impact of flow nonstationarity AN - 51644057; 2006-006723 JF - Eos, Transactions, American Geophysical Union AU - Sun, Alexander Y AU - Zhang, Dongxiao AU - He, Guowei AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 257 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - solute transport KW - pollutants KW - statistical analysis KW - unsaturated zone KW - pollution KW - ground water KW - reactivity KW - heterogeneous materials KW - movement KW - stratigraphic units KW - hydraulic conductivity KW - covariance analysis KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51644057?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Lagrangian+analysis+of+reactive+solution+transport+in+unsaturated+heterogeneous+formations%3B+impact+of+flow+nonstationarity&rft.au=Sun%2C+Alexander+Y%3BZhang%2C+Dongxiao%3BHe%2C+Guowei%3BAnonymous&rft.aulast=Sun&rft.aufirst=Alexander&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - covariance analysis; ground water; heterogeneous materials; hydraulic conductivity; movement; pollutants; pollution; reactivity; solute transport; statistical analysis; stratigraphic units; unsaturated zone ER - TY - JOUR T1 - Hypocenter relocation in tectonic and volcanic seismic data sets using automatic phase correlation; application of cross-correlation, signal envelope and principal components methods to improve pick consistency AN - 51643423; 2006-005490 JF - Eos, Transactions, American Geophysical Union AU - Rowe, Charlotte A AU - Aster, Richard C AU - Fehler, Michael C AU - Phillips, W Scott AU - Kyle, Philip R AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 588 EP - 589 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - P-waves KW - data processing KW - Europe KW - elastic waves KW - hot dry rocks KW - Bas-Rhin France KW - France KW - seismicity KW - data bases KW - focus KW - Mount Erebus KW - body waves KW - Western Europe KW - Soultz-sous-Forets France KW - principal components analysis KW - strombolian-type eruptions KW - statistical analysis KW - geothermal energy KW - Antarctica KW - eruptions KW - ray tracing KW - volcanic earthquakes KW - seismic waves KW - earthquakes KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51643423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Hypocenter+relocation+in+tectonic+and+volcanic+seismic+data+sets+using+automatic+phase+correlation%3B+application+of+cross-correlation%2C+signal+envelope+and+principal+components+methods+to+improve+pick+consistency&rft.au=Rowe%2C+Charlotte+A%3BAster%2C+Richard+C%3BFehler%2C+Michael+C%3BPhillips%2C+W+Scott%3BKyle%2C+Philip+R%3BAnonymous&rft.aulast=Rowe&rft.aufirst=Charlotte&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=588&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Antarctica; Bas-Rhin France; body waves; data bases; data processing; earthquakes; elastic waves; eruptions; Europe; focus; France; geothermal energy; hot dry rocks; Mount Erebus; P-waves; principal components analysis; ray tracing; S-waves; seismic waves; seismicity; Soultz-sous-Forets France; statistical analysis; strombolian-type eruptions; volcanic earthquakes; Western Europe ER - TY - JOUR T1 - Characterizing the fracture mineralogy of a thermal test block in silicic tuff, Yucca Mountain, Nevada, USA AN - 51643199; 2006-006716 JF - Eos, Transactions, American Geophysical Union AU - Levy, Schon S AU - Chipera, Steve J AU - Snow, Marjorie G AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 256 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - silicates KW - hazardous waste KW - volcanic rocks KW - site exploration KW - igneous rocks KW - characterization KW - waste disposal sites KW - siliceous composition KW - radioactive waste KW - ground water KW - Cenozoic KW - fractures KW - mineral composition KW - zeolite group KW - framework silicates KW - tuff KW - Yucca Mountain KW - Nevada KW - thermal properties KW - pollution KW - stellerite KW - Nye County Nevada KW - Miocene KW - Topopah Spring Member KW - pyroclastics KW - Tertiary KW - Neogene KW - testing KW - waste disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51643199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Characterizing+the+fracture+mineralogy+of+a+thermal+test+block+in+silicic+tuff%2C+Yucca+Mountain%2C+Nevada%2C+USA&rft.au=Levy%2C+Schon+S%3BChipera%2C+Steve+J%3BSnow%2C+Marjorie+G%3BAnonymous&rft.aulast=Levy&rft.aufirst=Schon&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=256&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Cenozoic; characterization; fractures; framework silicates; ground water; hazardous waste; igneous rocks; mineral composition; Miocene; Neogene; Nevada; Nye County Nevada; pollution; pyroclastics; radioactive waste; silicates; siliceous composition; site exploration; stellerite; Tertiary; testing; thermal properties; Topopah Spring Member; tuff; United States; volcanic rocks; waste disposal; waste disposal sites; Yucca Mountain; zeolite group ER - TY - JOUR T1 - Using multiple experimental methods to estimate mass transport parameters in fractured rock AN - 51643104; 2006-006715 JF - Eos, Transactions, American Geophysical Union AU - Callahan, Timothy J AU - Reimus, Paul W AU - Haga, Marc J AU - Bowman, Robert S AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 256 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - solute transport KW - hazardous waste KW - fractured materials KW - sorption KW - volcanic rocks KW - site exploration KW - igneous rocks KW - waste disposal sites KW - techniques KW - radioactive waste KW - ground water KW - Cenozoic KW - fractures KW - transport KW - movement KW - mass transfer KW - chemical composition KW - Yucca Mountain KW - geochemistry KW - Nevada KW - bedrock KW - experimental studies KW - diffusion KW - pollutants KW - pollution KW - Crater Flat Tuff KW - Nye County Nevada KW - hydrochemistry KW - Miocene KW - Tertiary KW - Neogene KW - metals KW - waste disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51643104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Using+multiple+experimental+methods+to+estimate+mass+transport+parameters+in+fractured+rock&rft.au=Callahan%2C+Timothy+J%3BReimus%2C+Paul+W%3BHaga%2C+Marc+J%3BBowman%2C+Robert+S%3BAnonymous&rft.aulast=Callahan&rft.aufirst=Timothy&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=256&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bedrock; Cenozoic; chemical composition; Crater Flat Tuff; diffusion; experimental studies; fractured materials; fractures; geochemistry; ground water; hazardous waste; hydrochemistry; igneous rocks; mass transfer; metals; Miocene; movement; Neogene; Nevada; Nye County Nevada; pollutants; pollution; radioactive waste; site exploration; solute transport; sorption; techniques; Tertiary; transport; United States; volcanic rocks; waste disposal; waste disposal sites; Yucca Mountain ER - TY - JOUR T1 - Reactive transport modeling predictions of the Unsaturatedd Zone Transport Test at Busted Butte AN - 51643091; 2006-006726 JF - Eos, Transactions, American Geophysical Union AU - Viswanathan, Hari S AU - Robinson, Bruce A AU - Bussod, Gilles Y AU - Turin, H J AU - Lichtner, Peter C AU - Valocchi, Albert J AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 257 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - solute transport KW - hazardous waste KW - isotopes KW - site exploration KW - waste disposal sites KW - unsaturated zone KW - simulation KW - radioactive waste KW - ground water KW - reactivity KW - radioactive isotopes KW - movement KW - tracers KW - Calico Hills Formation KW - Yucca Mountain KW - Nevada KW - pollutants KW - Monte Carlo analysis KW - statistical analysis KW - prediction KW - pollution KW - porous materials KW - Nye County Nevada KW - models KW - testing KW - Busted Butte KW - waste disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51643091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Reactive+transport+modeling+predictions+of+the+Unsaturatedd+Zone+Transport+Test+at+Busted+Butte&rft.au=Viswanathan%2C+Hari+S%3BRobinson%2C+Bruce+A%3BBussod%2C+Gilles+Y%3BTurin%2C+H+J%3BLichtner%2C+Peter+C%3BValocchi%2C+Albert+J%3BAnonymous&rft.aulast=Viswanathan&rft.aufirst=Hari&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Busted Butte; Calico Hills Formation; ground water; hazardous waste; isotopes; models; Monte Carlo analysis; movement; Nevada; Nye County Nevada; pollutants; pollution; porous materials; prediction; radioactive isotopes; radioactive waste; reactivity; simulation; site exploration; solute transport; statistical analysis; testing; tracers; United States; unsaturated zone; waste disposal; waste disposal sites; Yucca Mountain ER - TY - JOUR T1 - Groundwater impacts of liquid-dominated geothermal systems with overlying vapor caps AN - 51635896; 2006-013387 JF - Eos, Transactions, American Geophysical Union AU - Goff, F AU - Janik, C J AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 323 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Skamania County Washington KW - hot spots KW - Hawaii Island KW - Mount Saint Helens KW - water vapor KW - ground water KW - Cenozoic KW - geothermal systems KW - volcanism KW - El Salvador KW - movement KW - springs KW - Kilauea KW - chemical composition KW - geochemistry KW - degassing KW - liquid phase KW - hydrology KW - Washington KW - Quaternary KW - rift zones KW - Hawaii County Hawaii KW - Yellowstone Hot Spot KW - Hawaii KW - East Pacific Ocean Islands KW - hydrochemistry KW - thermal waters KW - Cascade Range KW - plate tectonics KW - boiling KW - magmas KW - brines KW - Oceania KW - volcanoes KW - acidification KW - Polynesia KW - hot springs KW - Central America KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51635896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Groundwater+impacts+of+liquid-dominated+geothermal+systems+with+overlying+vapor+caps&rft.au=Goff%2C+F%3BJanik%2C+C+J%3BAnonymous&rft.aulast=Goff&rft.aufirst=F&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - America Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acidification; boiling; brines; Cascade Range; Cenozoic; Central America; chemical composition; degassing; East Pacific Ocean Islands; El Salvador; geochemistry; geothermal systems; ground water; Hawaii; Hawaii County Hawaii; Hawaii Island; hot spots; hot springs; hydrochemistry; hydrology; Kilauea; liquid phase; magmas; Mount Saint Helens; movement; Oceania; plate tectonics; Polynesia; Quaternary; rift zones; Skamania County Washington; springs; thermal waters; United States; volcanism; volcanoes; Washington; water vapor; Yellowstone Hot Spot ER - TY - JOUR T1 - Laboratory observations of fluid flow stimulation in porous rocks during dynamic stress excitation AN - 51628960; 2006-011964 JF - Eos, Transactions, American Geophysical Union AU - Sharma, Arvind AU - Roberts, Peter M AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 895 EP - 896 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - hydraulics KW - Paleozoic KW - drainage KW - stress KW - Berea Sandstone KW - sandstone KW - porous materials KW - fluid dynamics KW - cores KW - pump tests KW - laboratory studies KW - sedimentary rocks KW - brines KW - tracers KW - clastic rocks KW - permeability KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51628960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Laboratory+observations+of+fluid+flow+stimulation+in+porous+rocks+during+dynamic+stress+excitation&rft.au=Sharma%2C+Arvind%3BRoberts%2C+Peter+M%3BAnonymous&rft.aulast=Sharma&rft.aufirst=Arvind&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=895&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Berea Sandstone; brines; clastic rocks; cores; drainage; fluid dynamics; hydraulics; laboratory studies; Paleozoic; permeability; porous materials; pump tests; sandstone; sedimentary rocks; stress; tracers ER - TY - JOUR T1 - Mantle avalanches as a consequence of non-linear rheology AN - 51628780; 2006-011909 JF - Eos, Transactions, American Geophysical Union AU - Yang, Woo-Sun AU - Baumgardner, John R AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 886 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - finite element analysis KW - viscosity KW - transition zones KW - strength KW - rheology KW - Prandtl number KW - mantle KW - convection KW - two-dimensional models KW - boundary layer KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51628780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Mantle+avalanches+as+a+consequence+of+non-linear+rheology&rft.au=Yang%2C+Woo-Sun%3BBaumgardner%2C+John+R%3BAnonymous&rft.aulast=Yang&rft.aufirst=Woo-Sun&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=886&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - boundary layer; convection; finite element analysis; mantle; Prandtl number; rheology; strength; transition zones; two-dimensional models; viscosity ER - TY - JOUR T1 - Fast and thermal neutron classification of the lunar surface; Lunar Prospector results AN - 51334646; 2004-067647 JF - Eos, Transactions, American Geophysical Union AU - Maurice, Sylvestre AU - Feldman, William C AU - Elphic, Richard C AU - Lawrence, David J AU - Thomsen, D R AU - Binder, Alan B AU - Lucey, Paul G AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 553 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - calcium KW - alkaline earth metals KW - Moon KW - thermal neutrons KW - orbits KW - Lunar Prospector Program KW - iron KW - absorption KW - gadolinium KW - epithermal energy KW - thermal energy KW - titanium KW - metals KW - classification KW - Clementine Program KW - samarium KW - rare earths KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51334646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Fast+and+thermal+neutron+classification+of+the+lunar+surface%3B+Lunar+Prospector+results&rft.au=Maurice%2C+Sylvestre%3BFeldman%2C+William+C%3BElphic%2C+Richard+C%3BLawrence%2C+David+J%3BThomsen%2C+D+R%3BBinder%2C+Alan+B%3BLucey%2C+Paul+G%3BAnonymous&rft.aulast=Maurice&rft.aufirst=Sylvestre&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=553&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absorption; alkaline earth metals; calcium; classification; Clementine Program; epithermal energy; gadolinium; iron; Lunar Prospector Program; metals; Moon; orbits; rare earths; reflectance; samarium; thermal energy; thermal neutrons; titanium ER - TY - JOUR T1 - Lunar Prospector observations of the distribution of thorium, gadolinium, and samarium AN - 51334589; 2004-067646 JF - Eos, Transactions, American Geophysical Union AU - Elphic, Richard C AU - Lawrence, David J AU - Feldman, William C AU - Barraclough, Bruce L AU - Maurice, Sylvestre AU - Binder, Alan B AU - Lucey, Paul G AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 553 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - neutron methods KW - iron oxides KW - Moon KW - Aitken KW - Lunar Prospector Program KW - alkali metals KW - mapping KW - iron KW - gadolinium KW - titanium KW - metals KW - potassium KW - gamma-ray spectra KW - thorium KW - oxides KW - Clementine Program KW - spectra KW - samarium KW - rare earths KW - reflectance KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51334589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Lunar+Prospector+observations+of+the+distribution+of+thorium%2C+gadolinium%2C+and+samarium&rft.au=Elphic%2C+Richard+C%3BLawrence%2C+David+J%3BFeldman%2C+William+C%3BBarraclough%2C+Bruce+L%3BMaurice%2C+Sylvestre%3BBinder%2C+Alan+B%3BLucey%2C+Paul+G%3BAnonymous&rft.aulast=Elphic&rft.aufirst=Richard&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=553&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; Aitken; alkali metals; Clementine Program; gadolinium; gamma-ray spectra; iron; iron oxides; Lunar Prospector Program; mapping; metals; Moon; neutron methods; oxides; potassium; rare earths; reflectance; samarium; spectra; thorium; titanium ER - TY - JOUR T1 - Observations of the Moon's iron and titanium surface distributions using the Lunar Prospector gamma-ray spectrometer AN - 51334297; 2004-067627 JF - Eos, Transactions, American Geophysical Union AU - Lawrence, David J AU - Feldman, William C AU - Barraclough, Bruce L AU - Elphic, Richard C AU - Maurice, Sylvestre AU - Binder, Alan B AU - Lucey, Paul G AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 545 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - concentration KW - Moon KW - Lunar Prospector Program KW - mapping KW - Mare Serenitatis KW - iron KW - measurement KW - titanium KW - metals KW - Mare Frigoris KW - gamma-ray spectra KW - Clementine Program KW - spectra KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51334297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Observations+of+the+Moon%27s+iron+and+titanium+surface+distributions+using+the+Lunar+Prospector+gamma-ray+spectrometer&rft.au=Lawrence%2C+David+J%3BFeldman%2C+William+C%3BBarraclough%2C+Bruce+L%3BElphic%2C+Richard+C%3BMaurice%2C+Sylvestre%3BBinder%2C+Alan+B%3BLucey%2C+Paul+G%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=David&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=545&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Clementine Program; concentration; gamma-ray spectra; iron; Lunar Prospector Program; mapping; Mare Frigoris; Mare Serenitatis; measurement; metals; Moon; reflectance; spectra; titanium ER - TY - JOUR T1 - Collapse patterns in the Valles Caldera AN - 50488977; 2009-024923 JF - Eos, Transactions, American Geophysical Union AU - Wolff, J A AU - Gardner, J N AU - Self, S AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 962 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - North America KW - volcanic rocks KW - Quaternary KW - collapse structures KW - ignimbrite KW - igneous rocks KW - New Mexico KW - Rio Grande Rift KW - Cenozoic KW - pyroclastics KW - Bandelier Tuff KW - eruptions KW - pumice KW - Valles Caldera KW - volcanoes KW - Pleistocene KW - Jemez Mountains KW - chemical composition KW - fault zones KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50488977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Collapse+patterns+in+the+Valles+Caldera&rft.au=Wolff%2C+J+A%3BGardner%2C+J+N%3BSelf%2C+S%3BAnonymous&rft.aulast=Wolff&rft.aufirst=J&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=962&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; Cenozoic; chemical composition; collapse structures; eruptions; fault zones; igneous rocks; ignimbrite; Jemez Mountains; New Mexico; North America; Pleistocene; pumice; pyroclastics; Quaternary; Rio Grande Rift; United States; Valles Caldera; volcanic rocks; volcanoes ER - TY - JOUR T1 - Bias in the centroid moment tensor for Central Asian earthquakes; evidence from regional surface wave data AN - 50161095; 1999-033409 AB - Surface waves recorded on the Chinese Digital Seismic Network (CDSN) station Urumqi (WMQ) are analyzed for 26 centroid moment tensor (CMT) earthquakes located within an epicentral distance of 1300 km. Applying a simple grid search method for source parameter retrieval, I obtain revised estimates of the focal depth, fault strike, and seismic moment (M (sub 0) ) from amplitude spectra of Love and Rayleigh waves and compare these estimates with the CMT best double-couple solutions. The comparisons show that residuals are unbiased for focal depth and fault strike, where population spreads are + or -13 km and + or -17 degrees , respectively. On the other hand, M (sub 0) estimates are found to be biased, with CMT M (sub 0) larger than regional estimates by an average of 0.27 + or - 0.04 log units. The results for focal depth and strike are consistent with previous global and regional studies comparing independent estimates with CMT results. Recent full-waveform modeling studies for central Asian earthquakes support the findings of bias in M (sub 0) estimates. I suggest that causes for M (sub 0) bias may be related to great thicknesses of continental crust in Hindu Kush and Tien Shan regions and to data censoring practices at small magnitudes. M (sub 0) :m (sub b) scaling relationships for central Asian earthquakes show better agreement with western U.S. scaling when M (sub 0) estimates determined in this study are used. Copyright 1998 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Patton, Howard J Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 26 EP - 26,974 PB - American Geophysical Union, Washington, DC VL - 103 IS - B11 SN - 0148-0227, 0148-0227 KW - P-waves KW - body waves KW - focal mechanism KW - guided waves KW - Tien Shan KW - elastic waves KW - waveforms KW - frequency KW - seismic sources KW - Central Asia KW - surface waves KW - moment tensors KW - strike faults KW - grid search method KW - epicenters KW - seismic waves KW - seismic networks KW - Asia KW - earthquakes KW - S-waves KW - faults KW - crust KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50161095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Bias+in+the+centroid+moment+tensor+for+Central+Asian+earthquakes%3B+evidence+from+regional+surface+wave+data&rft.au=Patton%2C+Howard+J&rft.aulast=Patton&rft.aufirst=Howard&rft.date=1998-11-01&rft.volume=103&rft.issue=B11&rft.spage=26&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F98JB02529 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - amplitude; Asia; body waves; Central Asia; crust; earthquakes; elastic waves; epicenters; faults; focal mechanism; frequency; grid search method; guided waves; moment tensors; P-waves; S-waves; seismic networks; seismic sources; seismic waves; strike faults; surface waves; Tien Shan; waveforms DO - http://dx.doi.org/10.1029/98JB02529 ER - TY - JOUR T1 - Nonlinear sediment response during the 1994 Northridge earthquake; observations and finite source simulations AN - 50161055; 1999-033404 AB - We have addressed the long-standing question regarding nonlinear sediment response in the Los Angeles region by testing whether sediment amplification was similar between the Northridge earthquake and its aftershocks. Comparing the weak- and strong-motion site response at 15 sediment sites, we find that amplification factors were significantly less for the main shock implying systematic nonlinearity. The difference is largest between 2 and 4 Hz (a factor of 2), and is significant at the 99% confidence level between 0.8 and 5.5 Hz. The inference of nonlinearity is robust with respect to the removal of possibly anomalous sediment sites and how the reference-site motion is defined. Furthermore, theoretical ground-motion simulations show no evidence of any bias from finite source effects during the main shock. Nonlinearity is also suggested by the fact that the four sediment sites that contain a clear fundamental resonance for the weak motion exhibit a conspicuous absence of the peak in the strong motion. Although we have taken the first step of establishing the presence of nonlinearity, it remains to define the physics of nonlinear response and to test the methodologies presently applied routinely in engineering practice. The inference of nonlinearity implies that care must be exercised in using sediment site data to study large earthquakes or predict strong ground motion. Copyright 1998 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Field, Edward H AU - Zeng, Yuehua AU - Johnson, Paul A AU - Beresnev, Igor A Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 26 EP - 26,883 PB - American Geophysical Union, Washington, DC VL - 103 IS - B11 SN - 0148-0227, 0148-0227 KW - United States KW - seismograms KW - soil mechanics KW - sand KW - elasticity KW - clastic sediments KW - damage KW - elastic waves KW - frequency KW - simulation KW - liquefaction KW - distribution KW - relief KW - California KW - aftershocks KW - main shocks KW - sediments KW - ground motion KW - unconsolidated materials KW - Northridge earthquake 1994 KW - earthquakes KW - amplitude KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50161055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Nonlinear+sediment+response+during+the+1994+Northridge+earthquake%3B+observations+and+finite+source+simulations&rft.au=Field%2C+Edward+H%3BZeng%2C+Yuehua%3BJohnson%2C+Paul+A%3BBeresnev%2C+Igor+A&rft.aulast=Field&rft.aufirst=Edward&rft.date=1998-11-01&rft.volume=103&rft.issue=B11&rft.spage=26&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F98JB02235 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 68 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aftershocks; amplitude; California; clastic sediments; damage; distribution; earthquakes; elastic waves; elasticity; frequency; ground motion; liquefaction; main shocks; Northridge earthquake 1994; relief; sand; sediments; seismograms; simulation; soil mechanics; unconsolidated materials; United States DO - http://dx.doi.org/10.1029/98JB02235 ER - TY - JOUR T1 - Synthesis and characterization of hydrous minerals for neutron diffraction AN - 50075508; 2010-023502 JF - Eos, Transactions, American Geophysical Union AU - Li, W AU - Zhao, Y AU - Fei, Y AU - Prewitt, C T AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 864 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - hydrates KW - pressure KW - lattice KW - X-ray diffraction data KW - high pressure KW - brucite KW - Raman spectra KW - talc KW - neutron diffraction data KW - oxides KW - sheet silicates KW - spectra KW - synthetic materials KW - P-T conditions KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50075508?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Synthesis+and+characterization+of+hydrous+minerals+for+neutron+diffraction&rft.au=Li%2C+W%3BZhao%2C+Y%3BFei%2C+Y%3BPrewitt%2C+C+T%3BAnonymous&rft.aulast=Li&rft.aufirst=W&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=864&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - brucite; high pressure; hydrates; lattice; neutron diffraction data; oxides; P-T conditions; pressure; Raman spectra; sheet silicates; silicates; spectra; synthetic materials; talc; X-ray diffraction data ER - TY - JOUR T1 - HIPPO, a new high intensity neutron diffractometer for characterization of bulk materials AN - 50075288; 2010-023420 JF - Eos, Transactions, American Geophysical Union AU - Bennett, Kristin AU - Von Dreele, Robert B AU - Wenk, Hans-Rudolf AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 850 EP - 851 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - orientation KW - crystal structure KW - deformation KW - recrystallization KW - physical properties KW - dynamics KW - time-of-flight neutron diffractometers KW - high intensity neutron diffractometers KW - heterogeneity KW - fabric KW - kinetics KW - instruments KW - anisotropy KW - P-T conditions KW - HIPPO instrument KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50075288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=HIPPO%2C+a+new+high+intensity+neutron+diffractometer+for+characterization+of+bulk+materials&rft.au=Bennett%2C+Kristin%3BVon+Dreele%2C+Robert+B%3BWenk%2C+Hans-Rudolf%3BAnonymous&rft.aulast=Bennett&rft.aufirst=Kristin&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=850&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anisotropy; crystal structure; deformation; dynamics; fabric; heterogeneity; high intensity neutron diffractometers; HIPPO instrument; instruments; kinetics; orientation; P-T conditions; physical properties; recrystallization; time-of-flight neutron diffractometers ER - TY - JOUR T1 - Hydrogen defects in Al (sub 2) O (sub 3) and water weakening of single crystals and polycrystals AN - 50073268; 2010-023428 JF - Eos, Transactions, American Geophysical Union AU - Castaing, J AU - Kronenberg, A K AU - Kirby, S H AU - Mitchell, T E AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 852 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - silica minerals KW - olivine group KW - mechanical properties KW - crystal structure KW - nesosilicates KW - ultrastructure KW - physical properties KW - aluminum oxides KW - grain boundaries KW - olivine KW - orthosilicates KW - chemical properties KW - quartz KW - oxides KW - water content KW - framework silicates KW - crystal chemistry KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50073268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Hydrogen+defects+in+Al+%28sub+2%29+O+%28sub+3%29+and+water+weakening+of+single+crystals+and+polycrystals&rft.au=Castaing%2C+J%3BKronenberg%2C+A+K%3BKirby%2C+S+H%3BMitchell%2C+T+E%3BAnonymous&rft.aulast=Castaing&rft.aufirst=J&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=852&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aluminum oxides; chemical properties; crystal chemistry; crystal structure; framework silicates; grain boundaries; mechanical properties; nesosilicates; olivine; olivine group; orthosilicates; oxides; physical properties; quartz; silica minerals; silicates; ultrastructure; water content ER - TY - JOUR T1 - High P-T structures and thermoelastic equations of state of clinopyroxenes and implication to Earth mantle modeling AN - 50071668; 2010-023479 JF - Eos, Transactions, American Geophysical Union AU - Zhao, Yusheng AU - Shankland, Thomas J AU - Von Dreele, Robert B AU - Zhang, Jianzhong AU - Gasparik, Tibor AU - Weidner, Donald J AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 860 EP - 861 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - X-ray diffraction data KW - jadeite KW - thermoelastic properties KW - mantle KW - Grueneisen parameters KW - physical properties KW - pyroxene group KW - clinopyroxene KW - equations of state KW - diopside KW - P-T conditions KW - chain silicates KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50071668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=High+P-T+structures+and+thermoelastic+equations+of+state+of+clinopyroxenes+and+implication+to+Earth+mantle+modeling&rft.au=Zhao%2C+Yusheng%3BShankland%2C+Thomas+J%3BVon+Dreele%2C+Robert+B%3BZhang%2C+Jianzhong%3BGasparik%2C+Tibor%3BWeidner%2C+Donald+J%3BAnonymous&rft.aulast=Zhao&rft.aufirst=Yusheng&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=860&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chain silicates; clinopyroxene; diopside; equations of state; Grueneisen parameters; jadeite; mantle; P-T conditions; physical properties; pyroxene group; silicates; thermoelastic properties; X-ray diffraction data ER - TY - JOUR T1 - Tilting of continental margins due to transient subduction AN - 50071185; 2010-023416 JF - Eos, Transactions, American Geophysical Union AU - Jarvis, Gary T AU - Lowman, Julian P AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 850 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - continental margin KW - allochthons KW - plate tectonics KW - accretion KW - subduction zones KW - numerical models KW - tilt KW - mantle KW - subduction KW - convection KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50071185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Tilting+of+continental+margins+due+to+transient+subduction&rft.au=Jarvis%2C+Gary+T%3BLowman%2C+Julian+P%3BAnonymous&rft.aulast=Jarvis&rft.aufirst=Gary&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=850&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - accretion; allochthons; continental margin; convection; crust; mantle; numerical models; plate tectonics; subduction; subduction zones; tilt ER - TY - JOUR T1 - Earth materials, part of a nonlinear mesoscopic elasticity class AN - 50056364; 2010-031293 JF - Eos, Transactions, American Geophysical Union AU - Johnson, Paul Allan AU - Guyer, Robert A AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 5 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - physical properties KW - elasticity KW - materials KW - engineering properties KW - elastic properties KW - buildings KW - earthquakes KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50056364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Earth+materials%2C+part+of+a+nonlinear+mesoscopic+elasticity+class&rft.au=Johnson%2C+Paul+Allan%3BGuyer%2C+Robert+A%3BAnonymous&rft.aulast=Johnson&rft.aufirst=Paul&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - buildings; earthquakes; elastic properties; elasticity; engineering properties; materials; physical properties ER - TY - JOUR T1 - Single mode nonlinear resonant ultrasound spectroscopy (SIMONRUS); extraction of nonlinear coefficients from rock samples by application of the Preisach model AN - 50055485; 2010-031296 JF - Eos, Transactions, American Geophysical Union AU - TenCate, James A AU - van den Abeele, Koen E A AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 5 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - hysteresis KW - elasticity KW - SIMONRUS KW - numerical models KW - Paleozoic KW - Berea Sandstone KW - rock mechanics KW - Preisarch models KW - resonance KW - physical properties KW - dynamics KW - single mode nonlinear resonant ultrasound spectroscopy KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50055485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Single+mode+nonlinear+resonant+ultrasound+spectroscopy+%28SIMONRUS%29%3B+extraction+of+nonlinear+coefficients+from+rock+samples+by+application+of+the+Preisach+model&rft.au=TenCate%2C+James+A%3Bvan+den+Abeele%2C+Koen+E+A%3BAnonymous&rft.aulast=TenCate&rft.aufirst=James&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Berea Sandstone; dynamics; elasticity; hysteresis; numerical models; Paleozoic; physical properties; Preisarch models; resonance; rock mechanics; SIMONRUS; single mode nonlinear resonant ultrasound spectroscopy ER - TY - JOUR T1 - Discerning damage in materials by application of single mode nonlinear resonant ultrasound spectroscopy AN - 50055251; 2010-031292 JF - Eos, Transactions, American Geophysical Union AU - Byers, Loren W AU - TenCate, James A AU - Carey, J William AU - Guthrie, George D AU - Johnson, Paul Allan AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 4 EP - 5 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - experimental studies KW - SIMONRUS KW - geophysical methods KW - data processing KW - damage KW - rock mechanics KW - acoustical methods KW - physical properties KW - cracks KW - chemical reactions KW - dynamics KW - spectra KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50055251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Discerning+damage+in+materials+by+application+of+single+mode+nonlinear+resonant+ultrasound+spectroscopy&rft.au=Byers%2C+Loren+W%3BTenCate%2C+James+A%3BCarey%2C+J+William%3BGuthrie%2C+George+D%3BJohnson%2C+Paul+Allan%3BAnonymous&rft.aulast=Byers&rft.aufirst=Loren&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1998 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical methods; chemical reactions; cracks; damage; data processing; dynamics; experimental studies; geophysical methods; physical properties; rock mechanics; SIMONRUS; spectra ER - TY - JOUR T1 - Optical Biosensor Based on Fluorescence Resonance Energy Transfer: Ultrasensitive and Specific Detection of Protein Toxins AN - 17249889; 4542740 JF - Journal of the American Chemical Society AU - Song, Xuedong AU - Nolan, J AU - Swanson, B I AD - Chemical Science and Technology Division, Life Science Division, Los Alamos National Laboratory, Los Alamos, NM 87544, USA Y1 - 1998/11// PY - 1998 DA - Nov 1998 SP - 11514 EP - 11515 VL - 120 IS - 44 SN - 0002-7863, 0002-7863 KW - Toxicology Abstracts KW - Biosensors KW - Energy flow KW - Fluorescence KW - Optical properties KW - Proteins KW - Toxins KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17249889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Chemical+Society&rft.atitle=Optical+Biosensor+Based+on+Fluorescence+Resonance+Energy+Transfer%3A+Ultrasensitive+and+Specific+Detection+of+Protein+Toxins&rft.au=Song%2C+Xuedong%3BNolan%2C+J%3BSwanson%2C+B+I&rft.aulast=Song&rft.aufirst=Xuedong&rft.date=1998-11-01&rft.volume=120&rft.issue=44&rft.spage=11514&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Chemical+Society&rft.issn=00027863&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Toxins; Proteins; Energy flow; Fluorescence; Biosensors; Optical properties ER - TY - JOUR T1 - Conformational and Dynamic Changes of Yersinia Protein Tyrosine Phosphatase Induced by Ligand Binding and Active Site Mutation and Revealed by H/D Exchange and Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry AN - 17211206; 4495918 AB - Protein tyrosine phosphatases (PTPase) play important roles in the intracellular signal transduction pathways that regulate cell transformation, growth, and proliferation. Here, solvent accessibility is determined for backbone amide protons from various segments of wild-type Yersinia PTPase in the presence or absence of 220 mu M vanadate, a competitive inhibitor, as well as an active site mutant in which the essential cysteine 403 has been replaced by serine (C403S). The method consists of solution-phase H/D exchange, followed by pepsin digestion, high-performance liquid chromatography, and electrospray ionization high-field (9.4 T) Fourier transform ion cyclotron resonance mass spectrometry. Proteolytic segments spanning similar to 93.5% of the primary sequence are analyzed. Binding of vanadate reduces the H/D exchange rate throughout the protein, both for the WpD loop and for numerous other residues that are shielded when that loop is pulled down over the active site on binding of the inhibitor. The single active site C403S mutation reduces solvent access to the WpD loop itself, but opens up the structure in several other segments. Although the 3D structure of the ligand-bound C403S mutant is similar to that of the wild-type PTPase, and the C403S mutant and the wild-type enzyme display similar affinities for vanadate, the thermodynamics for binding of vanadate is different for the two proteins. Collectively, these results establish the flexibility of the WpD loop (previously inferred by comparing PTPase X-ray single-crystal diffraction structures in the presence and absence of a tungstate inhibitor), as well as several other significant changes in segment exposure and/or flexibility that are not evident from X-ray structures. JF - Biochemistry (Washington) AU - Wang, F AU - Li, W AU - Emmett, M R AU - Hendrickson, CL AU - Marshall, A G AU - Zhang, Y-L AU - Wu, L AU - Zhang, Z-Y AD - Center for Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, and Department of Chemistry, 1800 East Paul Dirac Drive, Florida State University, Tallahassee, Florida 32310, USA, marxhall@magnet.fsu.edu Y1 - 1998/11// PY - 1998 DA - Nov 1998 SP - 15289 EP - 15299 VL - 37 IS - 44 SN - 0006-2960, 0006-2960 KW - mutation KW - protein-tyrosine-phosphatase KW - Microbiology Abstracts B: Bacteriology KW - Fourier analysis KW - Active sites KW - Structure-activity relationships KW - Yersinia KW - Ligands KW - Signal transduction KW - Conformational analysis KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17211206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry+%28Washington%29&rft.atitle=Conformational+and+Dynamic+Changes+of+Yersinia+Protein+Tyrosine+Phosphatase+Induced+by+Ligand+Binding+and+Active+Site+Mutation+and+Revealed+by+H%2FD+Exchange+and+Electrospray+Ionization+Fourier+Transform+Ion+Cyclotron+Resonance+Mass+Spectrometry&rft.au=Wang%2C+F%3BLi%2C+W%3BEmmett%2C+M+R%3BHendrickson%2C+CL%3BMarshall%2C+A+G%3BZhang%2C+Y-L%3BWu%2C+L%3BZhang%2C+Z-Y&rft.aulast=Wang&rft.aufirst=F&rft.date=1998-11-01&rft.volume=37&rft.issue=44&rft.spage=15289&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Yersinia; Structure-activity relationships; Active sites; Conformational analysis; Fourier analysis; Signal transduction; Ligands ER - TY - JOUR T1 - A murine AP-endonuclease gene-targeted deficiency with post-implantation embryonic progression and ionizing radiation sensitivity. AN - 70040900; 9806499 AB - Apurinic/apyrimidinic endonuclease (here designated APE/REF) carries out repair incision at abasic or single-strand break damages in mammals. This multifunctional protein also has putative role(s) as a cysteine 'reducing factor' (REF) in cell-stress transcriptional responses. To assess the significance of APE/REF for embryonic teratogenesis we constructed a more precisely targeted Ape/Ref-deficient genotype in mice. Ape/Ref gene replacement in ES cells eliminated the potential of APE/REF protein synthesis while retaining the Ape/Ref bi-directional promoter that avoided potential inactivation of an upstream gene. Chimeric animals crossed into Tac:N:NIHS-BC produced germline transmission. Homozygous null Ape/Ref-embryos exhibited successful implantation and nearly normal developmental progression until embryonic day 7.5 followed by morphogenetic failure and adsorption of embryos by day 9.5. We characterized the cellular events proceeding to embryonic lethality and examined ionizing radiation sensitivity of pre-implantation Ape/Ref-null embryos. After intermating of heterozygotes, Mendelian numbers of putative Ape/Ref-null progeny embryos at day 6.5 displayed a several-fold elevation of pycnotic, fragmenting cell nuclei within the embryo proper-the epiblast. Increased cell-nucleus degeneration occurred within epiblast cells while mitosis continued and before obvious morphogenetic disruption. Mitogenic response to epiblast cell death, if any, was ineffective for replacement of lost cells. Extra-embryonic yolk sac, a trophectoderm derived lineage retained normal appearance to day 9. Explanted homozygous Ape/Ref-null blastocysts displayed increased sensitivity to gamma-irradiation, most likely a manifestation of APE/REF incision defect. Our study establishes that this new Ape/Ref deficiency genotype is definitely capable of post-implantation developmental progression to the onset of gastrulation. Function(s) of APE/REF in base damage incision and also conceivably in mitogenic responses towards epiblast cell death are critical for transit through the gastrulation stage of embryonic growth and development. JF - Mutation research AU - Ludwig, D L AU - MacInnes, M A AU - Takiguchi, Y AU - Purtymun, P E AU - Henrie, M AU - Flannery, M AU - Meneses, J AU - Pedersen, R A AU - Chen, D J AD - Life Sciences Division, Los Alamos National Laboratory, NM 87545, USA. Y1 - 1998/10/21/ PY - 1998 DA - 1998 Oct 21 SP - 17 EP - 29 VL - 409 IS - 1 SN - 0027-5107, 0027-5107 KW - DNA Primers KW - 0 KW - Deoxyribonuclease IV (Phage T4-Induced) KW - EC 3.1.21.2 KW - Carbon-Oxygen Lyases KW - EC 4.2.- KW - DNA-(Apurinic or Apyrimidinic Site) Lyase KW - EC 4.2.99.18 KW - Index Medicus KW - Animals KW - Blastocyst -- radiation effects KW - Gamma Rays KW - DNA Primers -- genetics KW - Mice KW - Pregnancy KW - Mice, Knockout KW - Phenotype KW - Genotype KW - Alleles KW - Base Sequence KW - Blastocyst -- cytology KW - Genetic Vectors KW - Gene Targeting KW - Mutation KW - Female KW - DNA Repair -- genetics KW - Carbon-Oxygen Lyases -- physiology KW - DNA Repair -- radiation effects KW - DNA Repair -- physiology KW - Embryonic and Fetal Development -- radiation effects KW - Embryonic and Fetal Development -- genetics KW - Carbon-Oxygen Lyases -- deficiency KW - Embryonic and Fetal Development -- physiology KW - Radiation Tolerance -- physiology KW - Radiation Tolerance -- genetics KW - Carbon-Oxygen Lyases -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70040900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=A+murine+AP-endonuclease+gene-targeted+deficiency+with+post-implantation+embryonic+progression+and+ionizing+radiation+sensitivity.&rft.au=Ludwig%2C+D+L%3BMacInnes%2C+M+A%3BTakiguchi%2C+Y%3BPurtymun%2C+P+E%3BHenrie%2C+M%3BFlannery%2C+M%3BMeneses%2C+J%3BPedersen%2C+R+A%3BChen%2C+D+J&rft.aulast=Ludwig&rft.aufirst=D&rft.date=1998-10-21&rft.volume=409&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-11-18 N1 - Date created - 1998-11-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Stochastic analysis of biodegradation fronts in one-dimensional heterogeneous porous media AN - 52363655; 2000-035215 JF - Advances in Water Resources AU - Xin, Jack AU - Zhang, Dongxiao Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 103 EP - 116 PB - Elsevier, Oxford VL - 22 IS - 2 SN - 0309-1708, 0309-1708 KW - biodegradation KW - biomass KW - one-dimensional models KW - pollution KW - porous materials KW - seepage KW - ground water KW - nutrients KW - models KW - heterogeneous materials KW - stochastic processes KW - traveltime KW - heterogeneity KW - kinetics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52363655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Stochastic+analysis+of+biodegradation+fronts+in+one-dimensional+heterogeneous+porous+media&rft.au=Xin%2C+Jack%3BZhang%2C+Dongxiao&rft.aulast=Xin&rft.aufirst=Jack&rft.date=1998-10-01&rft.volume=22&rft.issue=2&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 19 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biodegradation; biomass; ground water; heterogeneity; heterogeneous materials; kinetics; models; nutrients; one-dimensional models; pollution; porous materials; seepage; stochastic processes; traveltime ER - TY - JOUR T1 - Summary and synthesis report on radionuclide retardation for the Yucca Mountain Site characterization project; Yucca Mountain Site characterization program milestone 3784 m AN - 51910483; 2004-001745 AB - This report is a detailed summary of laboratory and modeling studies performed by or for Los Alamos National Laboratory in support of the Yucca Mountain Site Characterization Project (YMP) on the mechanisms by which radionuclide transport from the proposed repository for high-level nuclear waste at Yucca Mountain, Nevada, is retarded or enhanced by sorption, diffusion, solubility limits, and colloid transport. As direct input into these studies, the report also includes a summary of what has been accomplished in the development of a model for groundwater chemistry at Yucca Mountain. JF - LA - Los Alamos Scientific Laboratory AU - Meijer, Arend AU - Strietelmeier, B A AU - Tait, C Drew AU - Hobart, D E AU - Clark, D L Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 299 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - aquifer vulnerability KW - sorption KW - volcanic rocks KW - isotopes KW - igneous rocks KW - waste disposal sites KW - radioactive waste KW - ground water KW - radioactive isotopes KW - transport KW - tuff KW - Yucca Mountain KW - rocks KW - mobility KW - Nevada KW - high-level waste KW - diffusion KW - colloidal materials KW - monitoring KW - pollution KW - migration of elements KW - solubility KW - Nye County Nevada KW - aquifers KW - pyroclastics KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51910483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Meijer%2C+Arend%3BStrietelmeier%2C+B+A%3BTait%2C+C+Drew%3BHobart%2C+D+E%3BClark%2C+D+L&rft.aulast=Meijer&rft.aufirst=Arend&rft.date=1998-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Summary+and+synthesis+report+on+radionuclide+retardation+for+the+Yucca+Mountain+Site+characterization+project%3B+Yucca+Mountain+Site+characterization+program+milestone+3784+m&rft.title=Summary+and+synthesis+report+on+radionuclide+retardation+for+the+Yucca+Mountain+Site+characterization+project%3B+Yucca+Mountain+Site+characterization+program+milestone+3784+m&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2004-01-01 N1 - Availability - National Technical Information Service, (703)685-6900, order number DE00003720NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; colloidal materials; diffusion; ground water; high-level waste; igneous rocks; isotopes; migration of elements; mobility; monitoring; Nevada; Nye County Nevada; pollution; pyroclastics; radioactive isotopes; radioactive waste; rocks; solubility; sorption; transport; tuff; United States; volcanic rocks; waste disposal; waste disposal sites; Yucca Mountain ER - TY - JOUR T1 - Crust and upper mantle P wave velocity structure beneath Valles Caldera, New Mexico; results from the Jemez teleseismic tomography experiment AN - 50168489; 1999-036196 AB - New results are presented from the teleseismic component of the Jemez Tomography Experiment conducted across Valles caldera in northern New Mexico. We invert 4872 relative P wave arrival times recorded on 50 portable stations to determine velocity structure to depths of 40 km. The three principle features of our model for Valles caldera are: (1) near-surface low velocities of -17% beneath the Toledo embayment and the Valle Grande, (2) midcrustal low velocities of -23% in an ellipsoidal volume underneath the northwest quadrant of the caldera, and (3) a broad zone of low velocities (-15%) in the lower crust or upper mantle. Crust shallower than 20 km is generally fast to the northwest of the caldera and slow to the southeast. Near-surface low velocities are interpreted as thick deposits of Bandelier tuff and postcaldera volcaniclastic rocks. Lateral variation in the thickness of these deposits supports increased caldera collapse to the southeast, beneath the Valle Grande. We interpret the midcrustal low-velocity zone to contain a minimum melt fraction of 10%. While we cannot rule out the possibility that this zone is the remnant 1.2 Ma Bandelier magma chamber, the eruption history and geochemistry of the volcanic rocks erupted in Valles caldera following the Bandelier tuff make it more likely that magma results from a new pulse of intrusion, indicating that melt flux into the upper crust beneath Valles caldera continues. The low-velocity zone near the crust-mantle boundary is consistent with either partial melt in the lower crust or mafic rocks without partial melt in the upper mantle. In either case, this low-velocity anomaly indicates that underplating by mantle-derived melts has occurred. Copyright 1998 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Steck, Lee K AU - Thurber, Clifford H AU - Fehler, Michael C AU - Lutter, William J AU - Roberts, Peter M AU - Baldridge, W Scott AU - Stafford, Darrik G AU - Sessions, Robert Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 24 EP - 24,320 PB - American Geophysical Union, Washington, DC VL - 103 IS - B10 SN - 0148-0227, 0148-0227 KW - United States KW - tomography KW - Jemez volcanic field KW - upper mantle KW - P-waves KW - North America KW - body waves KW - partial melting KW - mantle KW - elastic waves KW - New Mexico KW - teleseismic signals KW - Rio Grande Rift KW - velocity structure KW - Valles Caldera KW - seismic waves KW - arrival time KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50168489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Crust+and+upper+mantle+P+wave+velocity+structure+beneath+Valles+Caldera%2C+New+Mexico%3B+results+from+the+Jemez+teleseismic+tomography+experiment&rft.au=Steck%2C+Lee+K%3BThurber%2C+Clifford+H%3BFehler%2C+Michael+C%3BLutter%2C+William+J%3BRoberts%2C+Peter+M%3BBaldridge%2C+W+Scott%3BStafford%2C+Darrik+G%3BSessions%2C+Robert&rft.aulast=Steck&rft.aufirst=Lee&rft.date=1998-10-01&rft.volume=103&rft.issue=B10&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F98JB00750 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 52 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arrival time; body waves; crust; elastic waves; Jemez volcanic field; mantle; New Mexico; North America; P-waves; partial melting; Rio Grande Rift; seismic waves; teleseismic signals; tomography; United States; upper mantle; Valles Caldera; velocity structure DO - http://dx.doi.org/10.1029/98JB00750 ER - TY - JOUR T1 - Honey bees (Hymenoptera: Apidae) as indicators of radionuclide contamination: Investigating contaminant redistribution using concentrations in water, flowers, and honey bees AN - 17125273; 4428020 AB - As part of ongoing research concerning the use of honey bees, Apis mellifera L., as indicators of environmental radionuclide contamination, samples of water, flowers, and honey bees were collected for 2 consecutive years. The samples were collected within a study site containing radionuclide contamination above background levels. The samples were analyzed for concentrations of radionuclides, and the results were compared using rank sum, correlation, and trend analysis. Results were then used to assess the redistribution pathway of radionuclides within the study site. Results indicate that honey bees receive the majority of their contamination directly from the source, a radioactive waste lagoon. The amount of contamination the honey bees receive from flowers during nectar collection appears to be insignificant compared to the amount received during water collection. Results did not demonstrate significant patterns of correlation or trend between the lagoon, bees, or flowers. Sample results showed a significant bioaccumulation of cobalt-60 and sodium-22 within the honey bees but no significant bioaccumulation within the flowers. JF - Journal of Economic Entomology AU - Haarmann, T K AD - Ecological Studies Team, Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1998/10// PY - 1998 DA - Oct 1998 SP - 1072 EP - 1077 VL - 91 IS - 5 SN - 0022-0493, 0022-0493 KW - Bumble bees KW - Euglossine KW - Euglossines KW - Honey bee KW - Honey bees KW - Hymenoptera KW - Stingless bees KW - bioaccumulation KW - cobalt-60 KW - sodium-22 KW - Toxicology Abstracts; Entomology Abstracts KW - Flowers KW - Radioactive pollution KW - Apis mellifera KW - Water KW - Bioaccumulation KW - Apidae KW - Indicator species KW - X 24210:Radiation & radioactive materials KW - Z 05205:Populations & general ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17125273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Economic+Entomology&rft.atitle=Honey+bees+%28Hymenoptera%3A+Apidae%29+as+indicators+of+radionuclide+contamination%3A+Investigating+contaminant+redistribution+using+concentrations+in+water%2C+flowers%2C+and+honey+bees&rft.au=Haarmann%2C+T+K&rft.aulast=Haarmann&rft.aufirst=T&rft.date=1998-10-01&rft.volume=91&rft.issue=5&rft.spage=1072&rft.isbn=&rft.btitle=&rft.title=Journal+of+Economic+Entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apidae; Apis mellifera; Radioactive pollution; Flowers; Bioaccumulation; Indicator species; Water ER - TY - JOUR T1 - Spatial and temporal variations in mid-ocean ridge basalt geochemistry along the 9 degrees -10 degrees N East Pacific Rise AN - 853218153; 2011-020229 JF - Mineralogical Magazine AU - Sims, K W W AU - Goldstein, S J AU - Perfit, M R AU - Fornari, D J AU - Hart, S R AU - Murrell, M T A2 - Schott, Jacques Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 1413 EP - 1414 PB - Mineralogical Society, London VL - 62A, PART 3 SN - 0026-461X, 0026-461X KW - East Pacific KW - alkaline earth metals KW - volcanic rocks KW - radium KW - isotopes KW - isotope ratios KW - igneous rocks KW - Th-230/Ra-226 KW - uranium disequilibrium KW - spatial distribution KW - Ra-226 KW - spatial variations KW - radioactive isotopes KW - metals KW - Pacific Ocean KW - mid-ocean ridge basalts KW - basalts KW - protactinium KW - thorium KW - temporal distribution KW - Pa-231 KW - East Pacific Rise KW - actinides KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853218153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Spatial+and+temporal+variations+in+mid-ocean+ridge+basalt+geochemistry+along+the+9+degrees+-10+degrees+N+East+Pacific+Rise&rft.au=Sims%2C+K+W+W%3BGoldstein%2C+S+J%3BPerfit%2C+M+R%3BFornari%2C+D+J%3BHart%2C+S+R%3BMurrell%2C+M+T&rft.aulast=Sims&rft.aufirst=K+W&rft.date=1998-09-01&rft.volume=62A%2C+PART+3&rft.issue=&rft.spage=1413&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 4 N1 - Last updated - 2012-06-07 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; basalts; East Pacific; East Pacific Rise; igneous rocks; isotope ratios; isotopes; metals; mid-ocean ridge basalts; Pa-231; Pacific Ocean; protactinium; Ra-226; radioactive isotopes; radium; spatial distribution; spatial variations; temporal distribution; Th-230/Ra-226; thorium; uranium disequilibrium; volcanic rocks ER - TY - JOUR T1 - Global elemental maps of the Moon; the Lunar Prospector gamma-ray spectrometer AN - 52572203; 1998-056547 JF - Science AU - Lawrence, D J AU - Feldman, W C AU - Barraclough, B L AU - Binder, Alan B AU - Elphic, R C AU - Maurice, S AU - Thomsen, D R Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 1484 EP - 1489 PB - American Association for the Advancement of Science, Washington, DC VL - 281 IS - 5382 SN - 0036-8075, 0036-8075 KW - concentration KW - gamma-ray methods KW - Moon KW - Lunar Prospector Program KW - alkali metals KW - mapping KW - cosmochemistry KW - distribution KW - iron KW - counting rate method KW - KREEP KW - metals KW - lunar crust KW - potassium KW - gamma-ray spectra KW - Aitken Basin KW - thorium KW - spectra KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52572203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Global+elemental+maps+of+the+Moon%3B+the+Lunar+Prospector+gamma-ray+spectrometer&rft.au=Lawrence%2C+D+J%3BFeldman%2C+W+C%3BBarraclough%2C+B+L%3BBinder%2C+Alan+B%3BElphic%2C+R+C%3BMaurice%2C+S%3BThomsen%2C+D+R&rft.aulast=Lawrence&rft.aufirst=D&rft.date=1998-09-01&rft.volume=281&rft.issue=5382&rft.spage=1484&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 19 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - actinides; Aitken Basin; alkali metals; concentration; cosmochemistry; counting rate method; distribution; gamma-ray methods; gamma-ray spectra; iron; KREEP; lunar crust; Lunar Prospector Program; mapping; metals; Moon; potassium; spectra; thorium ER - TY - JOUR T1 - Fluxes of fast and epithermal neutrons from Lunar Prospector; evidence for water ice at the lunar poles AN - 52571040; 1998-056550 JF - Science AU - Feldman, W C AU - Maurice, S AU - Binder, Alan B AU - Barraclough, B L AU - Elphic, R C AU - Lawrence, D J Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 1496 EP - 1500 PB - American Association for the Advancement of Science, Washington, DC VL - 281 IS - 5382 SN - 0036-8075, 0036-8075 KW - water KW - polar regions KW - neutron methods KW - geophysical surveys KW - Moon KW - Lunar Prospector Program KW - geophysical methods KW - data processing KW - cosmochemistry KW - counting rate method KW - ice KW - hydrogen KW - lunar crust KW - surveys KW - spectra KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52571040?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Fluxes+of+fast+and+epithermal+neutrons+from+Lunar+Prospector%3B+evidence+for+water+ice+at+the+lunar+poles&rft.au=Feldman%2C+W+C%3BMaurice%2C+S%3BBinder%2C+Alan+B%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BLawrence%2C+D+J&rft.aulast=Feldman&rft.aufirst=W&rft.date=1998-09-01&rft.volume=281&rft.issue=5382&rft.spage=1496&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - cosmochemistry; counting rate method; data processing; geophysical methods; geophysical surveys; hydrogen; ice; lunar crust; Lunar Prospector Program; Moon; neutron methods; polar regions; regolith; spectra; surveys; water ER - TY - JOUR T1 - Major compositional units of the Moon; Lunar Prospector thermal and fast neutrons AN - 52570456; 1998-056548 JF - Science AU - Feldman, W C AU - Barraclough, B L AU - Maurice, S AU - Elphic, R C AU - Lawrence, D J AU - Thomsen, D R AU - Binder, Alan B Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 1489 EP - 1493 PB - American Association for the Advancement of Science, Washington, DC VL - 281 IS - 5382 SN - 0036-8075, 0036-8075 KW - albedo KW - concentration KW - volcanic rocks KW - neutron methods KW - geophysical surveys KW - Moon KW - igneous rocks KW - Lunar Prospector Program KW - geophysical methods KW - mafic composition KW - mapping KW - cosmochemistry KW - felsic composition KW - maria KW - lunar samples KW - topography KW - neutrons KW - lunar crust KW - basalts KW - Aitken Basin KW - surveys KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52570456?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Major+compositional+units+of+the+Moon%3B+Lunar+Prospector+thermal+and+fast+neutrons&rft.au=Feldman%2C+W+C%3BBarraclough%2C+B+L%3BMaurice%2C+S%3BElphic%2C+R+C%3BLawrence%2C+D+J%3BThomsen%2C+D+R%3BBinder%2C+Alan+B&rft.aulast=Feldman&rft.aufirst=W&rft.date=1998-09-01&rft.volume=281&rft.issue=5382&rft.spage=1489&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Aitken Basin; albedo; basalts; concentration; cosmochemistry; felsic composition; geophysical methods; geophysical surveys; igneous rocks; lunar crust; Lunar Prospector Program; lunar samples; mafic composition; mapping; maria; Moon; neutron methods; neutrons; surveys; topography; volcanic rocks ER - TY - JOUR T1 - (super 14) C depth profiles in Apollo 15 and 17 cores and lunar rock 68815 AN - 52503123; 1999-021336 AB - Previous determinations of (super 14) C in lunar samples identified three extraterrestrial sources of this isotope - production by nuclear reactions induced by galactic cosmic ray (GCR) or solar cosmic ray (SCR) particles, or implantation from an external source. These three sources are discussed. Activity vs depth profiles of (super 14) C produced by the first two sources, using accelerator MS, are reported for Apollo lunar cores 15001-6 and 15008, Apollo 17 core 76001 and lunar rock 68815. The results show the expected high (super 14) C values near the surface due to SCR effects, with a steep drop in activity to depths of approximately 5-10 g/cm (super 2) , a gradual rise to approximately 36 g/cm (super 2) and then a slow decrease with depth due to GCR. JF - Geochimica et Cosmochimica Acta AU - Jull, A J T AU - Cloudt, S AU - Donahue, D J AU - Sisterson, J M AU - Reedy, R C AU - Masarik, J Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 3025 EP - 3036 PB - Pergamon, Oxford VL - 62 IS - 17 SN - 0016-7037, 0016-7037 KW - experimental studies KW - Moon KW - isotopes KW - mass spectra KW - cosmogenic elements KW - mass spectroscopy KW - Apollo Program KW - cores KW - geochemical profiles KW - lunar samples KW - radioactive isotopes KW - carbon KW - accelerator mass spectroscopy KW - cosmic rays KW - spectra KW - C-14 KW - Apollo 15 KW - spectroscopy KW - geochemistry KW - Apollo 17 KW - activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52503123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=%28super+14%29+C+depth+profiles+in+Apollo+15+and+17+cores+and+lunar+rock+68815&rft.au=Jull%2C+A+J+T%3BCloudt%2C+S%3BDonahue%2C+D+J%3BSisterson%2C+J+M%3BReedy%2C+R+C%3BMasarik%2C+J&rft.aulast=Jull&rft.aufirst=A+J&rft.date=1998-09-01&rft.volume=62&rft.issue=17&rft.spage=3025&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900193-8 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 67 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2013-09-20 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - accelerator mass spectroscopy; activity; Apollo 15; Apollo 17; Apollo Program; C-14; carbon; cores; cosmic rays; cosmogenic elements; experimental studies; geochemical profiles; geochemistry; isotopes; lunar samples; mass spectra; mass spectroscopy; Moon; radioactive isotopes; spectra; spectroscopy DO - http://dx.doi.org/10.1016/S0016-7037(98)00193-8 ER - TY - JOUR T1 - Lunar Fe and Ti abundances; comparison of Lunar Prospector and Clementine data AN - 51318156; 1998-056549 JF - Science AU - Elphic, R C AU - Lawrence, D J AU - Barraclough, B L AU - Maurice, S AU - Binder, Alan B AU - Lucey, P G Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 1493 EP - 1496 PB - American Association for the Advancement of Science, Washington, DC VL - 281 IS - 5382 SN - 0036-8075, 0036-8075 KW - neutron methods KW - geophysical surveys KW - Moon KW - Lunar Prospector Program KW - geophysical methods KW - cosmochemistry KW - iron KW - counting rate method KW - KREEP KW - gadolinium KW - Mare Imbrium KW - titanium KW - metals KW - lunar crust KW - Aitken Basin KW - surveys KW - Clementine Program KW - samarium KW - rare earths KW - chemical composition KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51318156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Lunar+Fe+and+Ti+abundances%3B+comparison+of+Lunar+Prospector+and+Clementine+data&rft.au=Elphic%2C+R+C%3BLawrence%2C+D+J%3BBarraclough%2C+B+L%3BMaurice%2C+S%3BBinder%2C+Alan+B%3BLucey%2C+P+G&rft.aulast=Elphic&rft.aufirst=R&rft.date=1998-09-01&rft.volume=281&rft.issue=5382&rft.spage=1493&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 15 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Aitken Basin; chemical composition; Clementine Program; cosmochemistry; counting rate method; gadolinium; geophysical methods; geophysical surveys; iron; KREEP; lunar crust; Lunar Prospector Program; Mare Imbrium; metals; Moon; neutron methods; rare earths; reflectance; samarium; surveys; titanium ER - TY - JOUR T1 - Carbon dioxide sequestering using ultramafic rocks AN - 50574586; 1999-015893 JF - Environmental Geosciences AU - Goff, Fraser AU - Lackner, K S Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 89 EP - 101 PB - Blackwell Science, Cambridge, MA VL - 5 IS - 3 SN - 1075-9565, 1075-9565 KW - metaigneous rocks KW - magnesium KW - degradation KW - igneous rocks KW - global change KW - ultramafic composition KW - remediation KW - carbon dioxide KW - waste management KW - serpentinite KW - plutonic rocks KW - mineral composition KW - chemical reactions KW - energy sources KW - decontamination KW - metamorphic rocks KW - thermodynamic properties KW - dunite KW - global warming KW - North America KW - alkaline earth metals KW - pollution KW - magnesite KW - ultramafics KW - metals KW - peridotites KW - carbonates KW - metasomatic rocks KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50574586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geosciences&rft.atitle=Carbon+dioxide+sequestering+using+ultramafic+rocks&rft.au=Goff%2C+Fraser%3BLackner%2C+K+S&rft.aulast=Goff&rft.aufirst=Fraser&rft.date=1998-09-01&rft.volume=5&rft.issue=3&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Environmental+Geosciences&rft.issn=10759565&rft_id=info:doi/ L2 - http://www.ingentaconnect.com/content/bsc/ege LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 52 N1 - PubXState - MA N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; carbon dioxide; carbonates; chemical reactions; decontamination; degradation; dunite; energy sources; global change; global warming; igneous rocks; magnesite; magnesium; metaigneous rocks; metals; metamorphic rocks; metasomatic rocks; mineral composition; North America; peridotites; plutonic rocks; pollution; remediation; serpentinite; thermodynamic properties; ultramafic composition; ultramafics; waste management ER - TY - JOUR T1 - Effects of mineralogy and cation exchange capacity on lithium sorption to Yucca Mountain tuffs AN - 52543996; 1998-065990 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Anghel, I AU - Turin, H J AU - Carey, J W AU - Reimus, P S Y1 - 1998/08// PY - 1998 DA - August 1998 PB - American Chemical Society, Washington, DC VL - 216 SN - 0065-7727, 0065-7727 KW - United States KW - halides KW - sorption KW - volcanic rocks KW - X-ray diffraction data KW - isotopes KW - igneous rocks KW - unsaturated zone KW - bromides KW - radioactive waste KW - radioactive isotopes KW - mineral composition KW - tracers KW - tuff KW - Yucca Mountain KW - Nevada KW - cation exchange capacity KW - underground storage KW - lithium KW - alkali metals KW - Nye County Nevada KW - pyroclastics KW - metals KW - testing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52543996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Effects+of+mineralogy+and+cation+exchange+capacity+on+lithium+sorption+to+Yucca+Mountain+tuffs&rft.au=Anghel%2C+I%3BTurin%2C+H+J%3BCarey%2C+J+W%3BReimus%2C+P+S&rft.aulast=Anghel&rft.aufirst=I&rft.date=1998-08-01&rft.volume=216&rft.issue=&rft.spage=ENVR+090&rft.isbn=0841236275&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 216th American Chemical Society national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; bromides; cation exchange capacity; halides; igneous rocks; isotopes; lithium; metals; mineral composition; Nevada; Nye County Nevada; pyroclastics; radioactive isotopes; radioactive waste; sorption; testing; tracers; tuff; underground storage; United States; unsaturated zone; volcanic rocks; X-ray diffraction data; Yucca Mountain ER - TY - JOUR T1 - Thermodynamic modeling of geochemical reactions of neptunium AN - 52543202; 1998-065987 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Kaszuba, John P AU - Runde, Wolfgang H AU - Janecky, David R AU - Tait, C Drew Y1 - 1998/08// PY - 1998 DA - August 1998 PB - American Chemical Society, Washington, DC VL - 216 SN - 0065-7727, 0065-7727 KW - United States KW - neptunium KW - behavior KW - hydrolysis KW - solubility KW - Nye County Nevada KW - models KW - chemical reactions KW - metals KW - thermodynamic properties KW - Yucca Mountain KW - kinetics KW - geochemistry KW - actinides KW - Nevada KW - Eh KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52543202?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Thermodynamic+modeling+of+geochemical+reactions+of+neptunium&rft.au=Kaszuba%2C+John+P%3BRunde%2C+Wolfgang+H%3BJanecky%2C+David+R%3BTait%2C+C+Drew&rft.aulast=Kaszuba&rft.aufirst=John&rft.date=1998-08-01&rft.volume=216&rft.issue=&rft.spage=ENVR+064&rft.isbn=0841236275&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 216th American Chemical Society national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; behavior; chemical reactions; Eh; geochemistry; hydrolysis; kinetics; metals; models; neptunium; Nevada; Nye County Nevada; solubility; thermodynamic properties; United States; Yucca Mountain ER - TY - JOUR T1 - Silicon-32; diatoms, the silicon cycle and the climate AN - 52543002; 1998-066018 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Phillips, D R AU - Brzezinski, M A AU - Hamilton, V T AU - Kudela, R M Y1 - 1998/08// PY - 1998 DA - August 1998 PB - American Chemical Society, Washington, DC VL - 216 SN - 0065-7727, 0065-7727 KW - Plantae KW - Si-30 KW - isotopes KW - biochemistry KW - mass spectra KW - global change KW - algae KW - silicon KW - stable isotopes KW - geochemical cycle KW - Si-29 KW - sample preparation KW - diatoms KW - spectra KW - geochemistry KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52543002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Silicon-32%3B+diatoms%2C+the+silicon+cycle+and+the+climate&rft.au=Phillips%2C+D+R%3BBrzezinski%2C+M+A%3BHamilton%2C+V+T%3BKudela%2C+R+M&rft.aulast=Phillips&rft.aufirst=D&rft.date=1998-08-01&rft.volume=216&rft.issue=&rft.spage=NUCL+074&rft.isbn=0841236275&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 216th American Chemical Society national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biochemistry; diatoms; geochemical cycle; geochemistry; global change; isotopes; mass spectra; Plantae; sample preparation; Si-29; Si-30; silicon; spectra; stable isotopes ER - TY - JOUR T1 - A reactive transport model of neptunium migration from the potential repository at Yucca Mountain AN - 52532140; 1999-002952 AB - Characterization and performance assessment studies for the potential high-level nuclear waste repository at Yucca Mountain have identified (super 237) Np as a radionuclide of concern for the proposed repository. To predict the migration of neptunium after a repository breach, an understanding of the relevant hydrologic and geochemical processes is required. The hydrologic flow in the unsaturated zone at Yucca Mountain is dependent on the infiltration rate, the stratigraphy of the vadose zone, and the heat generated by the decaying radioactive waste. The geochemical processes that strongly affect (super 237) Np migration include: solubility-limited release of (super 237) Np from the near-field environment, aqueous speciation of neptunium into non-sorbing carbonate/hydroxy complexes and the sorbing NpO (sub 2) (super +) cation, sorption of neptunium onto the zeolitic tuffs via an ion exchange mechanism, and radioactive decay. The finite element heat and mass transfer code was used to investigate the coupled effects of chemical interactions and heat on neptunium transport from the potential repository to the water table. The selective coupling method is introduced to solve these reactive transport problems. The simulations indicate that in the absence of irreversible changes in the hydrologic and transport properties, the heat pulse does not significantly affect the migration of neptunium, as the time scale of heat pulse propagation is shorter than the time scales associated with neptunium release and migration. Water chemistry, particularly pH, calcium, and sodium concentration significantly affect the retardation of neptunium by the zeolitic rocks between the repository and the water table. JF - Journal of Hydrology AU - Viswanathan, Hari S AU - Robinson, Bruce A AU - Valocchi, Albert J AU - Triay, Ines R A2 - Steefel, Carl I. A2 - Van Cappellen, Philippe Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 251 EP - 280 PB - Elsevier, Amsterdam VL - 209 IS - 1-4 SN - 0022-1694, 0022-1694 KW - United States KW - sorption KW - neptunium KW - isotopes KW - one-dimensional models KW - data processing KW - unsaturated zone KW - radioactive waste KW - ground water KW - Nevada Test Site KW - finite element analysis KW - radioactive isotopes KW - chemical reactions KW - water-rock interaction KW - transport KW - digital simulation KW - ion exchange KW - mass transfer KW - Yucca Mountain KW - geochemistry KW - pH KW - Nevada KW - high-level waste KW - numerical models KW - Np-237 KW - three-dimensional models KW - statistical analysis KW - migration of elements KW - Nye County Nevada KW - hydrochemistry KW - case studies KW - water table KW - FEHM KW - metals KW - infiltration KW - waste disposal KW - actinides KW - underground disposal KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52532140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=A+reactive+transport+model+of+neptunium+migration+from+the+potential+repository+at+Yucca+Mountain&rft.au=Viswanathan%2C+Hari+S%3BRobinson%2C+Bruce+A%3BValocchi%2C+Albert+J%3BTriay%2C+Ines+R&rft.aulast=Viswanathan&rft.aufirst=Hari&rft.date=1998-08-01&rft.volume=209&rft.issue=1-4&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1996 annual meeting , symposium on Application of reactive transport modeling to natural systems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1999-01-01 N1 - Number of references - 65 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - actinides; case studies; chemical reactions; data processing; digital simulation; FEHM; finite element analysis; geochemistry; ground water; high-level waste; hydrochemistry; infiltration; ion exchange; isotopes; mass transfer; metals; migration of elements; neptunium; Nevada; Nevada Test Site; Np-237; numerical models; Nye County Nevada; one-dimensional models; pH; radioactive isotopes; radioactive waste; sorption; statistical analysis; three-dimensional models; transport; underground disposal; United States; unsaturated zone; waste disposal; water table; water-rock interaction; Yucca Mountain ER - TY - JOUR T1 - Magnitude of nonlinear sediment response in Los Angeles Basin during the 1994 Northridge, California, earthquake AN - 52513863; 1999-014861 AB - The study of nonlinear site response has practical difficulties due to large ambiguities in isolating local response from other competing effects. We chose a sedimentary site LF6 in Los Angeles basin that (1) has the closest reference rock sites available, compared to other stations, allowing an accurate estimation of local amplification, and (2) illustrates clear resonance in the near surface. In our opinion, this case represents the least ambiguity in the identification of possible nonlinearity. The site responses during the Northridge, the 1987 Whittier Narrows events and the Northridge aftershocks are compared. The station shows a fundamental resonance-frequency change between the higher- and lower-amplitude motions in the entire ensemble of 17 events used. The net shear-modulus reduction during the Northridge event is a factor of 1.3 to 1.4 compared to the Whittier Narrows event and is a factor of 1.7 compared to the aftershocks. This result provides guidance of what to expect at other sites in the basin, where the nonlinear response is less easy to characterize. JF - Bulletin of the Seismological Society of America AU - Beresnev, Igor A AU - Field, Edward H AU - van den Abeele, Koen AU - Johnson, Paul A Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 1079 EP - 1084 PB - Seismological Society of America, Berkeley, CA VL - 88 IS - 4 SN - 0037-1106, 0037-1106 KW - United States KW - Los Angeles County California KW - elastic waves KW - elastic constants KW - California KW - Los Angeles California KW - aftershocks KW - strong motion KW - earthquake prediction KW - ground motion KW - Los Angeles Basin KW - propagation KW - Northridge earthquake 1994 KW - shear modulus KW - heterogeneity KW - earthquakes KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52513863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Magnitude+of+nonlinear+sediment+response+in+Los+Angeles+Basin+during+the+1994+Northridge%2C+California%2C+earthquake&rft.au=Beresnev%2C+Igor+A%3BField%2C+Edward+H%3Bvan+den+Abeele%2C+Koen%3BJohnson%2C+Paul+A&rft.aulast=Beresnev&rft.aufirst=Igor&rft.date=1998-08-01&rft.volume=88&rft.issue=4&rft.spage=1079&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 27 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - aftershocks; amplitude; California; earthquake prediction; earthquakes; elastic constants; elastic waves; ground motion; heterogeneity; Los Angeles Basin; Los Angeles California; Los Angeles County California; Northridge earthquake 1994; propagation; shear modulus; strong motion; United States ER - TY - JOUR T1 - Uranium-series disequilibria in groundwater; assessing radionuclide migration AN - 50144710; 2009-090808 JF - Chinese Science Bulletin AU - Luo, S AU - Ku, T L AU - Roback, R AU - Murrell, M AU - McLing, T AU - Anonymous Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 86 PB - Science Press, Beijing VL - 43, Suppl. SN - 1001-6538, 1001-6538 KW - solute transport KW - Th-230 KW - Po-210 KW - isotopes KW - Th-234 KW - lead KW - Th-232 KW - ground water KW - Ra-226 KW - absorption KW - radioactive isotopes KW - Ra-228 KW - tracers KW - hydrodynamics KW - Ra-224 KW - alkaline earth metals KW - radium KW - Th-228 KW - adsorption KW - metals KW - U-234 KW - thorium KW - uranium KW - U-238 KW - actinides KW - polonium KW - Pb-210 KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50144710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chinese+Science+Bulletin&rft.atitle=Uranium-series+disequilibria+in+groundwater%3B+assessing+radionuclide+migration&rft.au=Luo%2C+S%3BKu%2C+T+L%3BRoback%2C+R%3BMurrell%2C+M%3BMcLing%2C+T%3BAnonymous&rft.aulast=Luo&rft.aufirst=S&rft.date=1998-08-01&rft.volume=43%2C+Suppl.&rft.issue=&rft.spage=86&rft.isbn=&rft.btitle=&rft.title=Chinese+Science+Bulletin&rft.issn=10016538&rft_id=info:doi/ L2 - http://www.springer.com/new+%26+forthcoming+titles+%28default%29/journal/11434 LA - English DB - GeoRef N1 - Conference title - Ninth international conference on Geochronology, cosmochronology and isotope geology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absorption; actinides; adsorption; alkaline earth metals; ground water; hydrodynamics; isotopes; lead; metals; Pb-210; Po-210; polonium; Ra-224; Ra-226; Ra-228; radioactive isotopes; radium; solute transport; Th-228; Th-230; Th-232; Th-234; thorium; tracers; U-234; U-238; uranium ER - TY - JOUR T1 - Honey bees as indicators of radionuclide contamination: Comparative studies of contaminant levels in forager and nurse bees and in the flowers of three plant species AN - 17105968; 4408032 AB - Two separate field experiments were conducted as part of ongoing research concerning the use of honey bees (Apis mellifera) as indicators of environmental radionuclide contamination. The experiments were conducted in a study site containing radionuclide contamination above background levels. The first experiment compared levels of radionuclides found in forager bees to levels found in nurse bees. Bees were collected from colonies, analyzed for concentrations of radionuclides, and the results were compared using statistical methods. Results indicated that there is no significant difference between the contaminant levels in forager and nurse bees. A second experiment compared the levels of radionuclides found in the flowers of three plant species growing in the study site: salt cedar (Tamarix ramosissima), white sweet clover (Melilotus albus), and rabbit brush (Chrysothamnus nauseosus). Results indicated that there is no significant difference in the amounts of radionuclides found in the flowers of these three plants. JF - Archives of Environmental Contamination and Toxicology AU - Haarmann, T K AD - Los Alamos National Laboratory, PO Box 1663 (MS M887), Los Alamos, New Mexico 87545, USA Y1 - 1998/08// PY - 1998 DA - Aug 1998 SP - 287 EP - 294 VL - 35 IS - 2 SN - 0090-4341, 0090-4341 KW - Apis mellifera KW - Bumble bees KW - Chrysothamnus nauseosus KW - Honey bee KW - Hymenoptera KW - Melilotus albus KW - Tamarix ramosissima KW - Toxicology Abstracts; Entomology Abstracts; Pollution Abstracts KW - Pollution monitoring KW - Contamination KW - Apidae KW - Insecta KW - Bioindicators KW - Flowers KW - Radioactive pollution KW - Plants KW - Radioisotopes KW - Indicator species KW - X 24210:Radiation & radioactive materials KW - P 8000:RADIATION KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17105968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Environmental+Contamination+and+Toxicology&rft.atitle=Honey+bees+as+indicators+of+radionuclide+contamination%3A+Comparative+studies+of+contaminant+levels+in+forager+and+nurse+bees+and+in+the+flowers+of+three+plant+species&rft.au=Haarmann%2C+T+K&rft.aulast=Haarmann&rft.aufirst=T&rft.date=1998-08-01&rft.volume=35&rft.issue=2&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Archives+of+Environmental+Contamination+and+Toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apidae; Apis mellifera; Melilotus albus; Radioactive pollution; Radioisotopes; Insecta; Indicator species; Flowers; Bioindicators; Pollution monitoring; Plants; Contamination ER - TY - JOUR T1 - A review of radiologically important trace elements in human bones AN - 16462195; 4368005 AB - The authors recently compiled and reviewed the literature for minor and trace elements in human bones and teeth as a part of an International Atomic Energy Agency (IAEA) study. Various aspects of elemental composition, analytical methodologies, quality assurance and quality control methods for hard tissue analysis were evaluated. Important data on selected radiologically important elements (Cs, Pu, Ra, Sr, Th and U) in calcified tissue from various countries are discussed. The results of this compilation study suggest a need for new reference materials with matrix properties similar to bones including one with separated cortical and trabecular segments. JF - Applied Radiation and Isotopes AU - Tandon, L AU - Iyengar, G V AU - Parr, R M AD - Los Alamos National Laboratory, MS K-484, Los Alamos, NM 87545, USA Y1 - 1998/08// PY - 1998 DA - Aug 1998 SP - 903 EP - 910 VL - 49 IS - 8 SN - 0969-8043, 0969-8043 KW - man KW - Toxicology Abstracts; Calcium & Calcified Tissue Abstracts KW - X 24210:Radiation & radioactive materials KW - T 20067:Radioisotopes and radiation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16462195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Radiation+and+Isotopes&rft.atitle=A+review+of+radiologically+important+trace+elements+in+human+bones&rft.au=Tandon%2C+L%3BIyengar%2C+G+V%3BParr%2C+R+M&rft.aulast=Tandon&rft.aufirst=L&rft.date=1998-08-01&rft.volume=49&rft.issue=8&rft.spage=903&rft.isbn=&rft.btitle=&rft.title=Applied+Radiation+and+Isotopes&rft.issn=09698043&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - The Yucca Mountain Project drift shale test AN - 52587538; 1998-044217 JF - International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts AU - Finley, R E AU - Blair, S C AU - Boyles, W J AU - Danneels, J J AU - Datta, R N AU - Elkins, N Z AU - George, J T AU - Homuth, E F AU - Lee, M Y AU - Lin, W AU - Peters, M T AU - Riggins, M AU - Tsang, Y AU - Wagner, R A AU - Weaver, D J AU - Yasek, R M A2 - Orozco, Jorge A2 - Schmitter, Juan Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 654 EP - 655 PB - Pergamon, Oxford-New York VL - 35 IS - 4-5 SN - 0148-9062, 0148-9062 KW - United States KW - numerical models KW - in situ KW - thermal conductivity KW - shale KW - data acquisition KW - host rocks KW - extensometers KW - analysis KW - Nye County Nevada KW - rock mechanics KW - sedimentary rocks KW - boreholes KW - Yucca Mountain Project KW - testing KW - Yucca Mountain KW - clastic rocks KW - Nevada KW - diffusivity KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52587538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.atitle=The+Yucca+Mountain+Project+drift+shale+test&rft.au=Finley%2C+R+E%3BBlair%2C+S+C%3BBoyles%2C+W+J%3BDanneels%2C+J+J%3BDatta%2C+R+N%3BElkins%2C+N+Z%3BGeorge%2C+J+T%3BHomuth%2C+E+F%3BLee%2C+M+Y%3BLin%2C+W%3BPeters%2C+M+T%3BRiggins%2C+M%3BTsang%2C+Y%3BWagner%2C+R+A%3BWeaver%2C+D+J%3BYasek%2C+R+M&rft.aulast=Finley&rft.aufirst=R&rft.date=1998-07-01&rft.volume=35&rft.issue=4-5&rft.spage=654&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.issn=01489062&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - NARMS '98; 3rd North American rock mechanics symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - SuppNotes - Special issue N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - analysis; boreholes; clastic rocks; data acquisition; diffusivity; extensometers; host rocks; in situ; Nevada; numerical models; Nye County Nevada; rock mechanics; sedimentary rocks; shale; testing; thermal conductivity; United States; Yucca Mountain; Yucca Mountain Project ER - TY - JOUR T1 - (super 41) Ca, (super 26) Al, and (super 10) Be in lunar basalt 74275 and (super 10) Be in the double drive tube 74002/74001 AN - 52572502; 1998-056509 AB - Analyses are presented of these cosmogenic radionuclides in depth profiles in the Ti-rich lunar basalt 74275; this was chosen since it was from the lunar surface with an unusually flat top and hence a simple exposure geometry. The (super 10) Be activities of samples from the upper few cm are nearly constant and include contributions from an earlier galactic cosmic ray-only irradiation and recent solar cosmic ray (SCR) and GCR production. (super 10) Be activities give an average (super 10) Be production rate of approximately 11.8 atoms/min/kg, and a (super 10) Be production rate at the surface due to SCR particles only of approximately 1.5 + or - 0.5 atoms/min/kg. Among the other results, lunar rock 74275 contains appreciable activities of (super 41) Ca produced by SCR, 10-15 dpm/kg at the lunar surface, and that 75% of this production originates from Ti. Ca is probably the prime target element in most lunar rocks. Ti makes an important contribution to (super 41) Ca production in Ti-rich basalts, and K similarly contributes in rocks with high KREEP contents. JF - Geochimica et Cosmochimica Acta AU - Fink, D AU - Klein, J AU - Middleton, R AU - Vogt, S AU - Herzog, G F AU - Reedy, R C Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 2389 EP - 2402 PB - Pergamon, Oxford VL - 62 IS - 13 SN - 0016-7037, 0016-7037 KW - calcium KW - alkaline earth metals KW - volcanic rocks KW - Be-10 KW - Moon KW - isotopes KW - Ca-41 KW - igneous rocks KW - cosmogenic elements KW - cosmochemistry KW - Apollo Program KW - Al-26 KW - lunar samples KW - radioactive isotopes KW - metals KW - aluminum KW - basalts KW - geochemistry KW - beryllium KW - Apollo 17 KW - solar activity KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52572502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=%28super+41%29+Ca%2C+%28super+26%29+Al%2C+and+%28super+10%29+Be+in+lunar+basalt+74275+and+%28super+10%29+Be+in+the+double+drive+tube+74002%2F74001&rft.au=Fink%2C+D%3BKlein%2C+J%3BMiddleton%2C+R%3BVogt%2C+S%3BHerzog%2C+G+F%3BReedy%2C+R+C&rft.aulast=Fink&rft.aufirst=D&rft.date=1998-07-01&rft.volume=62&rft.issue=13&rft.spage=2389&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900134-3 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 76 N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Includes 2 appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Apollo 17; Apollo Program; basalts; Be-10; beryllium; Ca-41; calcium; cosmochemistry; cosmogenic elements; geochemistry; igneous rocks; isotopes; lunar samples; metals; Moon; radioactive isotopes; solar activity; volcanic rocks DO - http://dx.doi.org/10.1016/S0016-7037(98)00134-3 ER - TY - JOUR T1 - Variations in solar-proton fluxes over the last million years AN - 52557905; 1998-067344 JF - Meteoritics & Planetary Science AU - Reedy, R C AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - calcium KW - alkaline earth metals KW - Moon KW - isotopes KW - Ca-41 KW - protons KW - variations KW - measurement KW - lunar samples KW - radioactive isotopes KW - chronology KW - rigidity KW - dates KW - metals KW - carbon KW - absolute age KW - spectral shape KW - cosmic rays KW - C-14 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52557905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Variations+in+solar-proton+fluxes+over+the+last+million+years&rft.au=Reedy%2C+R+C%3BAnonymous&rft.aulast=Reedy&rft.aufirst=R&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A127&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; alkaline earth metals; C-14; Ca-41; calcium; carbon; chronology; cosmic rays; dates; isotopes; lunar samples; measurement; metals; Moon; protons; radioactive isotopes; rigidity; spectral shape; variations ER - TY - JOUR T1 - The Juancheng and El Paso superbolides of February 15, 1997, and October 9, 1997; preatmospheric meteoroid sizes AN - 52556274; 1998-067406 JF - Meteoritics & Planetary Science AU - Wacker, J F AU - Hildebrand, A R AU - Brown, P AU - Crawford, D AU - Boslough, M AU - Chael, E AU - Revelle, D AU - Doser, D AU - Tagliaferri, E AU - Rathbun, D AU - Cooke, D AU - Adcock, C AU - Karner, J AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - A160 EP - A161 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - El Paso Bolide KW - ordinary chondrites KW - stony meteorites KW - cobalt KW - isotopes KW - cosmogenic elements KW - bolides KW - meteoroids KW - meteors KW - meteorites KW - Al-26 KW - radioactive isotopes KW - aluminum KW - Na-22 KW - chondrites KW - Co-60 KW - alkali metals KW - H chondrites KW - sodium KW - metals KW - volume KW - fireballs KW - petrography KW - Juancheng Meteorite KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52556274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+Juancheng+and+El+Paso+superbolides+of+February+15%2C+1997%2C+and+October+9%2C+1997%3B+preatmospheric+meteoroid+sizes&rft.au=Wacker%2C+J+F%3BHildebrand%2C+A+R%3BBrown%2C+P%3BCrawford%2C+D%3BBoslough%2C+M%3BChael%2C+E%3BRevelle%2C+D%3BDoser%2C+D%3BTagliaferri%2C+E%3BRathbun%2C+D%3BCooke%2C+D%3BAdcock%2C+C%3BKarner%2C+J%3BAnonymous&rft.aulast=Wacker&rft.aufirst=J&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A160&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Al-26; alkali metals; aluminum; bolides; chondrites; Co-60; cobalt; cosmogenic elements; El Paso Bolide; fireballs; H chondrites; isotopes; Juancheng Meteorite; metals; meteorites; meteoroids; meteors; Na-22; ordinary chondrites; petrography; radioactive isotopes; sodium; stony meteorites; volume ER - TY - JOUR T1 - Mapping the elemental composition of the Moon; current results of the Lunar Prospector gamma-ray spectrometer AN - 52556027; 1998-067279 JF - Meteoritics & Planetary Science AU - Lawrence, D J AU - Feldman, W C AU - Binder, A B AU - Maurice, S AU - Barraclough, B L AU - Elphic, R C AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - calcium KW - chemical elements KW - alkaline earth metals KW - magnesium KW - oxygen KW - Moon KW - Lunar Prospector Program KW - alkali metals KW - mapping KW - silicon KW - iron KW - titanium KW - metals KW - aluminum KW - potassium KW - gamma-ray spectra KW - thorium KW - uranium KW - spectra KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52556027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Mapping+the+elemental+composition+of+the+Moon%3B+current+results+of+the+Lunar+Prospector+gamma-ray+spectrometer&rft.au=Lawrence%2C+D+J%3BFeldman%2C+W+C%3BBinder%2C+A+B%3BMaurice%2C+S%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=D&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A92&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 3 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; alkaline earth metals; aluminum; calcium; chemical elements; gamma-ray spectra; iron; Lunar Prospector Program; magnesium; mapping; metals; Moon; oxygen; potassium; silicon; spectra; thorium; titanium; uranium ER - TY - JOUR T1 - Fast neutrons from the Moon; measured and calculated fluxes AN - 52554527; 1998-067345 JF - Meteoritics & Planetary Science AU - Reedy, R C AU - Feldman, W C AU - Barraclough, B L AU - Binder, A B AU - Elphic, R C AU - Lawrence, D J AU - Maurice, S AU - Masarik, J AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - A127 EP - A128 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - Moon KW - Monte Carlo analysis KW - statistical analysis KW - Lunar Prospector Program KW - measurement KW - mineral composition KW - neutrons KW - hydrogen KW - gamma-ray spectra KW - cosmic rays KW - spectra KW - solar activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52554527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Fast+neutrons+from+the+Moon%3B+measured+and+calculated+fluxes&rft.au=Reedy%2C+R+C%3BFeldman%2C+W+C%3BBarraclough%2C+B+L%3BBinder%2C+A+B%3BElphic%2C+R+C%3BLawrence%2C+D+J%3BMaurice%2C+S%3BMasarik%2C+J%3BAnonymous&rft.aulast=Reedy&rft.aufirst=R&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A127&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Last updated - 2013-09-20 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - cosmic rays; gamma-ray spectra; hydrogen; Lunar Prospector Program; measurement; mineral composition; Monte Carlo analysis; Moon; neutrons; solar activity; spectra; statistical analysis ER - TY - JOUR T1 - Path correction using interpolated amplitude residuals; an example from central China AN - 50163344; 1999-006838 AB - To isolate effects of the laterally varying lithosphere on regional seismograms, we geographically smoothed source- and distance-corrected amplitudes from 853 events recorded at station LZH in central China. This procedure was applied to P (sub n) , P (sub g) , S (sub n) and L (sub g) phases and various coda windows for eight bands between 0.5 and 8 Hz. We assume smoothing reduces effects such as source radiation, leaving an estimate of the path effect that can be used to correct data. A cross-validation procedure showed that path corrections performed best with low-frequency L (sub g) data, reducing variance up to 39% for 1 Hz L (sub g) , and up to 57% for 0.75 Hz P/L (sub g) ratios, compared to correction for distance alone. These corrections reduce scatter in magnitude estimates and discriminant ratios without needing to know detailed geological structure and will be important for effective test-ban monitoring. Copyright 1998 by the American Geophysical Union. JF - Geophysical Research Letters AU - Phillips, W Scott AU - Randall, George E AU - Taylor, Steven R Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 2729 EP - 2732 PB - American Geophysical Union, Washington, DC VL - 25 IS - 14 SN - 0094-8276, 0094-8276 KW - seismograms KW - patterns KW - Far East KW - Lanzhou China KW - Gansu China KW - elastic waves KW - teleseismic signals KW - central China KW - seismicity KW - focus KW - corrections KW - seismic networks KW - Asia KW - earthquakes KW - China KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50163344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Path+correction+using+interpolated+amplitude+residuals%3B+an+example+from+central+China&rft.au=Phillips%2C+W+Scott%3BRandall%2C+George+E%3BTaylor%2C+Steven+R&rft.aulast=Phillips&rft.aufirst=W&rft.date=1998-07-01&rft.volume=25&rft.issue=14&rft.spage=2729&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F98GL51940 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 16 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - amplitude; Asia; central China; China; corrections; earthquakes; elastic waves; Far East; focus; Gansu China; Lanzhou China; patterns; seismic networks; seismicity; seismograms; teleseismic signals DO - http://dx.doi.org/10.1029/98GL51940 ER - TY - JOUR T1 - Small-scale DNA sample preparation method for field PCR detection of microbial cells and spores in soil AN - 16525743; 4380306 AB - Efficient, nonselective methods to obtain DNA from the environment are needed for rapid and thorough analysis of introduced microorganisms in environmental samples and for analysis of microbial community diversity in soil. A small-scale procedure to rapidly extract and purify DNA from soils was developed for in-the-field use. Amounts of DNA released from bacterial vegetative cells, bacterial endospores, and fungal conidia were compared by using hot-detergent treatment, freeze-thaw cycles, and bead mill homogenization. Combining a hot-detergent treatment with bead mill homogenization gave the highest DNA yields from all three microbial cell types and provided DNA from the broadest range of microbial groups in a natural soil community. Only the bead mill homogenization step was effective for DNA extraction from Bacillus globigii (B. subtilis subsp. niger) endospores or Fusarium moniliforme conidia. The hot-detergent-bead mill procedure was simplified and miniaturized. By using this procedure and small-scale, field-adapted purification and quantification procedures, DNA was prepared from four different soils seeded with Pseudomonas putida cells or B. globigii spores. In a New Mexico soil, seeded bacterial targets were detected with the same sensitivity as when assaying pure bacterial DNA (2 to 20 target gene copies in a PCR mixture). The detection limit of P. putida cells and B. globigii spores in different soils was affected by the amount of background DNA in the soil samples, the physical condition of the DNA, and the amount of DNA template used in the PCR. JF - Applied and Environmental Microbiology AU - Kuske, ChR AU - Banton, K L AU - Adorada, D L AU - Stark, P C AU - Hill, K K AU - Jackson, P J AD - Environmental Molecular Biology Group, Life Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, kuske@lanl.gov Y1 - 1998/07// PY - 1998 DA - Jul 1998 SP - 2463 EP - 2472 VL - 64 IS - 7 SN - 0099-2240, 0099-2240 KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - N 14610:Occurrence, isolation & assay KW - A 01116:Bacteria KW - J 02704:Enumeration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16525743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Small-scale+DNA+sample+preparation+method+for+field+PCR+detection+of+microbial+cells+and+spores+in+soil&rft.au=Kuske%2C+ChR%3BBanton%2C+K+L%3BAdorada%2C+D+L%3BStark%2C+P+C%3BHill%2C+K+K%3BJackson%2C+P+J&rft.aulast=Kuske&rft.aufirst=ChR&rft.date=1998-07-01&rft.volume=64&rft.issue=7&rft.spage=2463&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - The emergence of flow cytometry for sensitive, real-time measurements of molecular interactions AN - 16480062; 4340420 AB - The analysis of macromolecular interactions is an essential element of biomedical research. Flow cytometry is uniquely capable of making sensitive and quantitative measurements of molecular interactions. These measurements can be made in real time with subsecond kinetic resolution using purified biomolecules or living cells. Combined with automated sample handling, these features make flow cytometry a versatile and robust technology for the analysis of molecular interactions. JF - Nature Biotechnology AU - Nolan, J P AU - Sklar, LA AD - National Flow Cytometry Resource and Life Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, nolan@telomere.lanl.gov Y1 - 1998/07// PY - 1998 DA - Jul 1998 SP - 633 EP - 638 VL - 16 IS - 7 SN - 1087-0156, 1087-0156 KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - W2 32250:Others KW - W2 32000:General topics and reviews KW - W3 33000:General topics and reviews KW - W 30965:Miscellaneous, Reviews KW - W3 33250:Methods: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16480062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Biotechnology&rft.atitle=The+emergence+of+flow+cytometry+for+sensitive%2C+real-time+measurements+of+molecular+interactions&rft.au=Nolan%2C+J+P%3BSklar%2C+LA&rft.aulast=Nolan&rft.aufirst=J&rft.date=1998-07-01&rft.volume=16&rft.issue=7&rft.spage=633&rft.isbn=&rft.btitle=&rft.title=Nature+Biotechnology&rft.issn=10870156&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Geochemical surveillance of magmatic volatiles at Popocatepetl Volcano, Mexico AN - 52595417; 1998-037014 AB - Surveillance of Popocatepetl volcanic plume geochemistry and SO (sub 2) flux began in early 1994 after fumarolic and seismic activity increased significantly during 1993. Volatile traps placed around the summit were collected at near-monthly intervals until the volcano erupted on December 21, 1994. Additional trap samples were obtained in early 1996 before the volcano erupted again, emplacing a small dacite dome in the summit crater. Abundances of volatile constituents (ppm/day of Cl, S (sub total) , F, CO (sub 2) , Hg, and As) varied, but most constituents were relatively high in early and late 1994. However, ratios of these constituents to Cl were highest in mid-1994. delta (super 34) S-S (sub total) in trap solutions ranged from 1.5e to 6.4e; lowest values generally occurred during late 1994. delta (super 13) C-CO (sub 2) of trap solutions were greatly contaminated with atmospheric CO (sub 2) and affected by absorption kinetics. When trap data are combined with SO (sub 2) flux measurements made through November 1996, Popocatepetl released about 3.9 Mt SO (sub 2) , 16 Mt CO (sub 2) , 0.75 Mt HCl, 0.075 Mt HF, 260 t As, 2.6 t Hg, and roughly 200 Mt H (sub 2) O. Near-vent gas concentrations in the volcanic plume measured by correlation spectrometer (COSPEC) and Fourier transform infrared (FTIR) commonly exceed human recommended exposure limits and may constitute a potential health hazard. Volatile geochemistry combined with petrologic observations and melt-inclusion studies show that mafic magma injection into a preexisting silicic chamber has accompanied renewed volcanism at Popocatepetl. Minor assimilation of Cretaceous wall rocks probably occurred in mid-1994. JF - Geological Society of America Bulletin AU - Goff, Fraser AU - Janik, Cathy J AU - Delgado, Hugo AU - Werner, Cindy AU - Counce, Dale AU - Stimac, James A AU - Siebe, Claus AU - Love, S P AU - Williams, Stanley N AU - Fischer, Tobias P AU - Johnson, L Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 695 EP - 710 PB - Geological Society of America (GSA), Boulder, CO VL - 110 IS - 6 SN - 0016-7606, 0016-7606 KW - stratovolcanoes KW - volcanic rocks KW - isotopes KW - igneous rocks KW - fumaroles KW - Popocatepetl KW - stable isotopes KW - infrared spectra KW - carbon dioxide KW - volatilization KW - FTIR spectra KW - geochemical surveys KW - seismicity KW - carbon KW - spectra KW - volcanic ash KW - chemical composition KW - geochemistry KW - isotope ratios KW - C-13/C-12 KW - atmosphere KW - gases KW - pyroclastics KW - volatiles KW - Mexico KW - S-34/S-32 KW - magmas KW - eruptions KW - volcanoes KW - surveys KW - sulfur KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52595417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+of+America+Bulletin&rft.atitle=Geochemical+surveillance+of+magmatic+volatiles+at+Popocatepetl+Volcano%2C+Mexico&rft.au=Goff%2C+Fraser%3BJanik%2C+Cathy+J%3BDelgado%2C+Hugo%3BWerner%2C+Cindy%3BCounce%2C+Dale%3BStimac%2C+James+A%3BSiebe%2C+Claus%3BLove%2C+S+P%3BWilliams%2C+Stanley+N%3BFischer%2C+Tobias+P%3BJohnson%2C+L&rft.aulast=Goff&rft.aufirst=Fraser&rft.date=1998-06-01&rft.volume=110&rft.issue=6&rft.spage=695&rft.isbn=&rft.btitle=&rft.title=Geological+Society+of+America+Bulletin&rft.issn=00167606&rft_id=info:doi/10.1130%2F0016-7606%281998%291102.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - Number of references - 65 N1 - PubXState - CO N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - BUGMAF N1 - SubjectsTermNotLitGenreText - atmosphere; C-13/C-12; carbon; carbon dioxide; chemical composition; eruptions; FTIR spectra; fumaroles; gases; geochemical surveys; geochemistry; igneous rocks; infrared spectra; isotope ratios; isotopes; magmas; Mexico; Popocatepetl; pyroclastics; S-34/S-32; seismicity; spectra; stable isotopes; stratovolcanoes; sulfur; surveys; volatiles; volatilization; volcanic ash; volcanic rocks; volcanoes DO - http://dx.doi.org/10.1130/0016-7606(1998)110<0695:GSOMVA>2.3.CO;2 ER - TY - JOUR T1 - Source mechanism of an explosively induced mine collapse AN - 52584917; 1998-046894 AB - Mining explosions and collapses, in addition to earthquakes, may trigger the future Comprehensive Test Ban Treaty (CTBT) monitoring system. Many shallow, spontaneously occurring mine collapses have implosional source mechanisms that might provide a physical basis to discriminate them from explosions. In this study, an explosively induced mine collapse was investigated. The collapse occurred immediately after the support pillars of a 320-m-deep underground mine opening were destroyed by explosives. It had an Lg body-wave magnitude (m (sub bLg) ) of 2.8. We analyzed free-surface ground-motion data (within 1200 m) from the collapse by waveform forward modeling and time-dependent source moment-tensor inversion. The results indicate that the source mechanism of the collapse can be represented by a horizontal opening and closing crack. The time functions of the diagonal source moment-tensor components are similar to that of a spall source accompanying an underground explosion. A unique source characteristic of the induced collapse is that, unlike spontaneous collapses, the induced collapse initiated as a tensile crack. Because of the initially expansive source characteristic, this kind of induced mine collapses may pose some difficulties to the seismic discrimination problem. Despite the similarities between the induced mine collapse and underground explosions, the collapse has a more band-limited source spectrum and seems to be more efficient in shear and surface-wave generation. JF - Bulletin of the Seismological Society of America AU - Yang, Xiaoning AU - Stump, Brian W AU - Phillips, W Scott Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 843 EP - 854 PB - Seismological Society of America, Berkeley, CA VL - 88 IS - 3 SN - 0037-1106, 0037-1106 KW - mines KW - monitoring KW - guided waves KW - explosions KW - magnitude KW - Lg-waves KW - mechanism KW - elastic waves KW - seismic sources KW - surface waves KW - cracks KW - ground motion KW - seismic waves KW - induced earthquakes KW - earthquakes KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52584917?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Source+mechanism+of+an+explosively+induced+mine+collapse&rft.au=Yang%2C+Xiaoning%3BStump%2C+Brian+W%3BPhillips%2C+W+Scott&rft.aulast=Yang&rft.aufirst=Xiaoning&rft.date=1998-06-01&rft.volume=88&rft.issue=3&rft.spage=843&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 35 N1 - PubXState - CA N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - Comprehensive Test Ban Treaty; cracks; earthquakes; elastic waves; explosions; ground motion; guided waves; induced earthquakes; Lg-waves; magnitude; mechanism; mines; monitoring; seismic sources; seismic waves; surface waves ER - TY - JOUR T1 - The 16 August 1997 Novaya Zemlya seismic event as viewed from GSN stations KEV and KBS AN - 51029240; 1999-019426 JF - Seismological Research Letters AU - Hartse, Hans E Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 206 EP - 215 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 3 SN - 0895-0695, 0895-0695 KW - Urals KW - P-waves KW - body waves KW - monitoring KW - Arkhangelsk Russian Federation KW - Europe KW - elastic waves KW - waveforms KW - Russian Federation KW - Novaya Zemlya earthquake 1997 KW - Commonwealth of Independent States KW - seismicity KW - Novaya Zemlya KW - seismic waves KW - seismic networks KW - arrival time KW - earthquakes KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51029240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=The+16+August+1997+Novaya+Zemlya+seismic+event+as+viewed+from+GSN+stations+KEV+and+KBS&rft.au=Hartse%2C+Hans+E&rft.aulast=Hartse&rft.aufirst=Hans&rft.date=1998-06-01&rft.volume=69&rft.issue=3&rft.spage=206&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 6 N1 - PubXState - CA] N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Arkhangelsk Russian Federation; arrival time; body waves; Commonwealth of Independent States; earthquakes; elastic waves; Europe; monitoring; Novaya Zemlya; Novaya Zemlya earthquake 1997; P-waves; Russian Federation; S-waves; seismic networks; seismic waves; seismicity; Urals; waveforms ER - TY - JOUR T1 - Nonlinear site response; where we're at (a report from a SCEC/PEER seminar and workshop) AN - 51027870; 1999-019429 JF - Seismological Research Letters AU - Field, E H AU - Kramer, S AU - Elgamal, A W AU - Bray, J D AU - Matasovic, N AU - Johnson, P A AU - Cramer, C AU - Roblee, C AU - Wald, D J AU - Bonilla, L F AU - Dimitriu, P P AU - Anderson, J G Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 230 EP - 234 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 3 SN - 0895-0695, 0895-0695 KW - soils KW - experimental studies KW - in situ KW - geophysical methods KW - linear distortion KW - downhole methods KW - wave amplification KW - seismic methods KW - models KW - compaction KW - laboratory studies KW - seismicity KW - ground motion KW - propagation KW - earthquakes KW - accuracy KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51027870?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Nonlinear+site+response%3B+where+we%27re+at+%28a+report+from+a+SCEC%2FPEER+seminar+and+workshop%29&rft.au=Field%2C+E+H%3BKramer%2C+S%3BElgamal%2C+A+W%3BBray%2C+J+D%3BMatasovic%2C+N%3BJohnson%2C+P+A%3BCramer%2C+C%3BRoblee%2C+C%3BWald%2C+D+J%3BBonilla%2C+L+F%3BDimitriu%2C+P+P%3BAnderson%2C+J+G&rft.aulast=Field&rft.aufirst=E&rft.date=1998-06-01&rft.volume=69&rft.issue=3&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 29 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - accuracy; compaction; downhole methods; earthquakes; experimental studies; geophysical methods; ground motion; in situ; laboratory studies; linear distortion; models; propagation; seismic methods; seismicity; soils; wave amplification ER - TY - JOUR T1 - CTBT ratification; a call to action AN - 50568076; 2008-126669 JF - Seismological Research Letters AU - Patton, Howard J Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 195 EP - 198 PB - Seismological Society of America, El Cerrito, CA VL - 69 IS - 3 SN - 0895-0695, 0895-0695 KW - monitoring KW - seismology KW - international cooperation KW - seismic networks KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50568076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=CTBT+ratification%3B+a+call+to+action&rft.au=Patton%2C+Howard+J&rft.aulast=Patton&rft.aufirst=Howard&rft.date=1998-06-01&rft.volume=69&rft.issue=3&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Comprehensive Test Ban Treaty; international cooperation; monitoring; seismic networks; seismology ER - TY - JOUR T1 - Stochastic analysis of steady-state unsaturated flow in heterogeneous media; comparison of the Brooks-Corey and Gardner-Russo models AN - 50168142; 1998-040936 AB - Existing stochastic models of unsaturated flow and transport are usually developed using the simple Gardner-Russo constitutive relationship though it is generally accepted that the more complex van Genuchten and Brooks-Corey relationships may perform better in describing experimental data. In this paper, we develop first-order stochastic models for gravity-dominated flow in second-order stationary media with both the Brooks-Corey and the Gardner-Russo constitutive relationships. These models also account for the spatial variability in effective water content, while the spatial variability is generally neglected in most existing stochastic models. Analytical solutions are obtained for the case of one-dimensional gravity-dominated flow. On the basis of the solutions, we illustrate the differences between results from these two constitutive models through some one-dimensional examples. It is found that the impacts of the constitutive models on the statistical moments of suction head, effective water content, unsaturated hydraulic conductivity, and velocity depend on the saturation ranges. For example, the mean head and the mean effective water content for the Brooks-Corey model differ in a great manner with their counterparts for the Gardner-Russo model near the dry and wet limits while the differences are small at the intermediate range of saturation. This finding is confirmed with some two-dimensional examples. It is also found that the Brook-Corey model has certain advantages over the Gardner-Russo model in analyzing unsaturated flow in heterogeneous media. For example, the stochastic model developed based on the Brooks-Corey function requires the coefficient of variation of head and soil parameter "alpha (sub BC ) " to be small (<1), whereas that based on the Gardner-Russo function assumes the one-point cross covariance of head and OLGR to be small (<1). Illustrative examples reveal that the latter condition may be violated because the one-point covariance is found to increase rapidly to beyond unity as the soil becomes dry, whereas the former may be readily satisfied. Copyright 1998 by the American Geophysical Union. JF - Water Resources Research AU - Zhang, Dongxiao AU - Wallstrom, T C AU - Winter, C L Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 1437 EP - 1449 PB - American Geophysical Union, Washington, DC VL - 34 IS - 6 SN - 0043-1397, 0043-1397 KW - solute transport KW - steady flow KW - pollutants KW - one-dimensional models KW - variance analysis KW - statistical analysis KW - unsaturated zone KW - pollution KW - two-dimensional models KW - ground water KW - models KW - heterogeneous materials KW - stochastic processes KW - mathematical methods KW - Brooks-Corey model KW - hydrodynamics KW - Gardner-Russo model KW - accuracy KW - gravity flows KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50168142?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Stochastic+analysis+of+steady-state+unsaturated+flow+in+heterogeneous+media%3B+comparison+of+the+Brooks-Corey+and+Gardner-Russo+models&rft.au=Zhang%2C+Dongxiao%3BWallstrom%2C+T+C%3BWinter%2C+C+L&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1998-06-01&rft.volume=34&rft.issue=6&rft.spage=1437&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F98WR00317 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - accuracy; Brooks-Corey model; Gardner-Russo model; gravity flows; ground water; heterogeneous materials; hydrodynamics; mathematical methods; models; one-dimensional models; pollutants; pollution; solute transport; statistical analysis; steady flow; stochastic processes; two-dimensional models; unsaturated zone; variance analysis DO - http://dx.doi.org/10.1029/98WR00317 ER - TY - JOUR T1 - Activity-based cost management. Part II: Applied to a respiratory protection program. AN - 79941818; 9622907 AB - To demonstrate the relevance of activity-based cost management (ABCM) for the occupational and environmental health community, the investigators used data generated by an ABCM model of a respiratory protection program (RPP) to develop options for solving a business problem. The RPP manager in this hypothetical but realistic business scenario is faced with a 25% budget cut and a 10% increase in demand for RPP services. The manager's dilemma is to maintain the integrity of the RPP while absorbing a significant budget cut. Various cost savings options are developed, and the assumptions under which these options operate are presented. It is emphasized that the RPP manager's primary responsibility is to assure worker health and safety by first understanding the technical issues, merits, and implications of any cost-cutting option that may be considered. It is argued that only then should the manager consider the financial merits of the possible solutions to this business problem. In this way worker health and safety, and environmental protection goals, can continue to be achieved in an economic climate of cost cutting and downsizing. JF - American Industrial Hygiene Association journal AU - Brandt, M T AU - Levine, S P AU - Smith, D G AU - Ettinger, H J AU - Gallimore, B F AD - Los Alamos National Laboratory, Environmental, Safety and Health Division, NM 87545, USA. Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 335 EP - 345 VL - 59 IS - 5 SN - 0002-8894, 0002-8894 KW - Index Medicus KW - Models, Organizational KW - Costs and Cost Analysis KW - Humans KW - Cost Control KW - Budgets KW - Cost Allocation -- methods KW - Respiratory Protective Devices -- economics KW - Occupational Health Services -- economics KW - Inhalation Exposure -- prevention & control KW - Accounting -- methods KW - Environmental Health -- economics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79941818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Industrial+Hygiene+Association+journal&rft.atitle=Activity-based+cost+management.+Part+II%3A+Applied+to+a+respiratory+protection+program.&rft.au=Brandt%2C+M+T%3BLevine%2C+S+P%3BSmith%2C+D+G%3BEttinger%2C+H+J%3BGallimore%2C+B+F&rft.aulast=Brandt&rft.aufirst=M&rft.date=1998-05-01&rft.volume=59&rft.issue=5&rft.spage=335&rft.isbn=&rft.btitle=&rft.title=American+Industrial+Hygiene+Association+journal&rft.issn=00028894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-06-25 N1 - Date created - 1998-06-25 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Volcaniclastic aggradation in a semiarid environment, northwestern Vulcano Island, Italy AN - 52607664; 1998-032797 AB - Most studies of volcaniclastic facies and aggradation cycles have been conducted in regions with humid climates, and on regional scales. Here we document a volcaniclastic succession that formed in a semiarid climate characterized by rare, heavy rains onto a relatively barren volcanic landscape on Vulcano Island, Italy. The deposits, which we informally call the Cuesta succession, occur in a small valley between two rhyolite domes, and consist of a sequence of pyroclastic surge and fallout deposits interbedded with their reworked equivalents. A phase of eruptive activity characterized by sporadic hydrovolcanic explosions supplied ash to the valley and its flanks. Runoff events during the eruptive phase continually washed ash down to the valley floor in the form of hyperconcentrated flows. The inferred transport mechanism and depositional facies of these beds reflect the control of primary volcanic fragmentation processes on sedimentation; the abundant, medium-to-coarse ash supplied by eruption was incorporated sufficiently easily into the runoff to hyperconcentrate the flows, but not sufficiently fine grained to make the flows cohesive. These flows moved out onto the floor, merged, and transported ash down the valley axis, depositing the ash as a monotonous succession of massive to faintly laminated beds. The combination of primary deposits and the deposits washed off the valley flanks led to aggradation of the valley floor. As eruptions waned, ash was eroded off the flanks faster than it was replenished, leading to a stratigraphic upward increase in lithic clasts derived from the underlying lavas and a wider range of sedimentary facies as the ash load became more variable. After eruptions ceased and all remaining ash was removed from the flanks, aggradation gave way to degradation to form small canyons that expose the succession. JF - Geological Society of America Bulletin AU - Valentine, Greg A AU - Palladino, Danilo M AU - Agosta, Emanuela AU - Taddeucci, Jacopo AU - Trigila, Raffaello Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 630 EP - 643 PB - Geological Society of America (GSA), Boulder, CO VL - 110 IS - 5 SN - 0016-7606, 0016-7606 KW - lithostratigraphy KW - terrestrial environment KW - degradation KW - pyroclastic surges KW - erosion KW - semi-arid environment KW - Europe KW - Italy KW - explosive eruptions KW - Southern Europe KW - Cenozoic KW - bedding plane irregularities KW - volcaniclastics KW - Lipari Islands KW - sediments KW - Cuesta Succession KW - sedimentary structures KW - hydrology KW - flute casts KW - Quaternary KW - valleys KW - sediment transport KW - clastic sediments KW - aggradation KW - channels KW - canyons KW - lithofacies KW - Sicily Italy KW - ash falls KW - Vulcano KW - upper Quaternary KW - runoff KW - SEM data KW - 24:Quaternary geology KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52607664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+of+America+Bulletin&rft.atitle=Volcaniclastic+aggradation+in+a+semiarid+environment%2C+northwestern+Vulcano+Island%2C+Italy&rft.au=Valentine%2C+Greg+A%3BPalladino%2C+Danilo+M%3BAgosta%2C+Emanuela%3BTaddeucci%2C+Jacopo%3BTrigila%2C+Raffaello&rft.aulast=Valentine&rft.aufirst=Greg&rft.date=1998-05-01&rft.volume=110&rft.issue=5&rft.spage=630&rft.isbn=&rft.btitle=&rft.title=Geological+Society+of+America+Bulletin&rft.issn=00167606&rft_id=info:doi/10.1130%2F0016-7606%281998%291102.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - Number of references - 42 N1 - PubXState - CO N1 - Document feature - illus. incl. strat. cols., 5 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - BUGMAF N1 - SubjectsTermNotLitGenreText - aggradation; ash falls; bedding plane irregularities; canyons; Cenozoic; channels; clastic sediments; Cuesta Succession; degradation; erosion; Europe; explosive eruptions; flute casts; hydrology; Italy; Lipari Islands; lithofacies; lithostratigraphy; pyroclastic surges; Quaternary; runoff; sediment transport; sedimentary structures; sediments; SEM data; semi-arid environment; Sicily Italy; Southern Europe; terrestrial environment; upper Quaternary; valleys; volcaniclastics; Vulcano DO - http://dx.doi.org/10.1130/0016-7606(1998)110<0630:VAIASE>2.3.CO;2 ER - TY - JOUR T1 - The role of silica colloids on facilitated cesium transport through glass bead columns and modeling AN - 51044916; 1998-035977 AB - Groundwater colloids can act as a vector which enhances the migration of contaminants. While sorbed to mobile colloids, contaminants can be held in the aqueous phase which prevents them from interacting with immobile aquifer surfaces. In this study, an idealized laboratory set-up was used to examine the influence of amorphous silica colloids on the transport of cesium. Synthetic groundwater and saturated glass bead columns were used to minimize the presence of natural colloidal material. The columns were assembled in replicate, some packed with 150-210 mu m glass bead and others packed with 355-420 mu m glass beads. The colloids used in these experiments were 100 nm amorphous silica colloids from Nissan Chemical. In the absence of these colloids, the retardation factor for cesium was 8.0 in the 150-210 mu m glass bead columns and 3.6 in the 355-420 mu m glass bead columns. The influence of anthropogenic colloids was tested by injecting 0.09 pore volume slugs of an equilibrated suspension of cesium and colloids into the colloid-free columns. Although there was little noticeable facilitation in the smaller glass bead columns, there was a slight reduction in the retardation of cesium in the larger glass bead columns. This was attributed to cesium having less of a retention time in the larger glass bead columns. When cesium was injected into columns with a constant flux of colloids, the retardation of cesium was reduced by 14-32% in the 150-210 mu m glass bead columns and by 38-51% in the 355-420 mu m glass bead columns. A model based on Corapcioglu and Jiang (1993) [Corapcioglu, M. Y., Jiang, S., 1993. Colloid-facilitated groundwater contaminant transport, Water Resour. Res., 29 (7) 2215-2226] was compared with the experimental elution data. When equilibrium sorption expressions were used and the flux of colloids through the glass bead columns was constant, the colloid facilitated transport of cesium was able to be described using an effective retardation coefficient. Fully kinetic simulations, however, more accurately described the colloid facilitated transport of cesium. JF - Journal of Contaminant Hydrology AU - Noell, Alan L AU - Thompson, Joseph L AU - Corapcioglu, M Yavuz AU - Triay, Ines R Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 23 EP - 56 PB - Elsevier, Amsterdam VL - 31 IS - 1-2 SN - 0169-7722, 0169-7722 KW - colloidal materials KW - amorphous materials KW - pollutants KW - alkali metals KW - pollution KW - suspended materials KW - migration of elements KW - aqueous solutions KW - ground water KW - aquifers KW - cesium KW - transport KW - silica KW - metals KW - retention KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51044916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=The+role+of+silica+colloids+on+facilitated+cesium+transport+through+glass+bead+columns+and+modeling&rft.au=Noell%2C+Alan+L%3BThompson%2C+Joseph+L%3BCorapcioglu%2C+M+Yavuz%3BTriay%2C+Ines+R&rft.aulast=Noell&rft.aufirst=Alan&rft.date=1998-05-01&rft.volume=31&rft.issue=1-2&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; amorphous materials; aqueous solutions; aquifers; cesium; colloidal materials; ground water; metals; migration of elements; pollutants; pollution; retention; silica; suspended materials; transport ER - TY - JOUR T1 - Nonstationary stochastic analysis of steady state flow through variably saturated, heterogeneous media AN - 50167721; 1998-034675 AB - In this study we develop a first-order, nonstationary stochastic model for steady state, unsaturated flow in randomly heterogeneous media. The model is applicable to the entire domain of a bounded vadose zone, unlike most of the existing stochastic models. Because of its nonstationarity, we solve it by the numerical technique of finite differences, which renders the flexibility in handling different boundary conditions, input covariance structures, and soil constitutive relationships. We illustrate the model results in one and two dimensions for soils described by the Brooks-Corey constitutive model. It is found that the flow quantities such as suction head, effective water content, unsaturated hydraulic conductivity, and velocity are nonstationary near the water table and approach stationarity as the vertical distance from the water table increases. The stationary limits and the critical vertical distance at which stationarity is attained depend on soil types and recharge rates. The smaller the recharge rate is, the larger the critical distance; and the coarser the soil texture is, the smaller the distance. One important implication of this is that the existing simpler, gravity-dominated flow models may provide good approximations for flow in vadose zones of large thickness and/or coarse-textured soils although they may not be valid for vadose zones of fine-textured soils with a shallow water table. It is also found that the vertical extent of a domain where nonstationarity is important may be estimated by solving the one-dimensional Richards equation for mean head with average soil properties and appropriate boundary conditions. On the basis of the mean head, one may then determine whether the full, nonstationary model must be solved or whether a simpler, gavity-dominated model will suffice. The flow quantities are also nonstationary in the horizontal direction near the lateral boundaries, as found for flow in saturated zones. Copyright 1998 by the American Geophysical Union. JF - Water Resources Research AU - Zhang, Dongxiao AU - Winter, C L Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 1091 EP - 1100 PB - American Geophysical Union, Washington, DC VL - 34 IS - 5 SN - 0043-1397, 0043-1397 KW - solute transport KW - soils KW - numerical models KW - textures KW - steady flow KW - pollutants KW - grain size KW - statistical analysis KW - pollution KW - fluid dynamics KW - ground water KW - aquifers KW - models KW - heterogeneous materials KW - stochastic processes KW - saturation KW - water content KW - shallow aquifers KW - hydraulic conductivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50167721?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Nonstationary+stochastic+analysis+of+steady+state+flow+through+variably+saturated%2C+heterogeneous+media&rft.au=Zhang%2C+Dongxiao%3BWinter%2C+C+L&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1998-05-01&rft.volume=34&rft.issue=5&rft.spage=1091&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F97WR03661 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - aquifers; fluid dynamics; grain size; ground water; heterogeneous materials; hydraulic conductivity; models; numerical models; pollutants; pollution; saturation; shallow aquifers; soils; solute transport; statistical analysis; steady flow; stochastic processes; textures; water content DO - http://dx.doi.org/10.1029/97WR03661 ER - TY - JOUR T1 - Slow electric dynamics in a resonant bar of rock AN - 50157322; 2001-014657 AB - Recent resonant bar experiments on Berea sandstone show that nonlinear excitation of the sample excites a slow dynamics with a time scale many orders of magnitude longer than the excitation period, 2pi /omega . That is, a nonlinear resonant frequency decays to the linear resonant frequency long after the high amplitude drive has been turned off. We postulate a phenomenological theory of slow nonlinear dynamics in the context of a resonant bar experiment. The normalized elastic modulus of the resonant bar is allowed to be nonlinear and time dependent. The nonlinear terms are derived from a model of elasticity in rocks that includes anharmonic and hysteretic contributions. We use this theory to explain the experimental results. We find an explanation for the slow relaxation of the experimental resonant frequency using an anharmonic contribution to the modulus that responds instantaneously to a disturbance, and a contribution derived from elastic hysteresis that displays slow dynamics. We suggest an acoustic NMR-type experiment to explore slow nonlinear dynamics. Copyright 1998 by the American Geophysical Union. JF - Geophysical Research Letters AU - Guyer, R A AU - McCall, K R AU - van den Abeele, K Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 1585 EP - 1588 PB - American Geophysical Union, Washington, DC VL - 25 IS - 10 SN - 0094-8276, 0094-8276 KW - elasticity KW - Paleozoic KW - Berea Sandstone KW - elastic waves KW - elastic constants KW - hysteretic electric elements KW - rock mechanics KW - time scales KW - resonance KW - Devonian KW - seismicity KW - dynamics KW - velocity KW - excitation period KW - propagation KW - rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50157322?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Slow+electric+dynamics+in+a+resonant+bar+of+rock&rft.au=Guyer%2C+R+A%3BMcCall%2C+K+R%3Bvan+den+Abeele%2C+K&rft.aulast=Guyer&rft.aufirst=R&rft.date=1998-05-01&rft.volume=25&rft.issue=10&rft.spage=1585&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F98GL51231 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 12 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Berea Sandstone; Devonian; dynamics; elastic constants; elastic waves; elasticity; excitation period; hysteretic electric elements; Paleozoic; propagation; resonance; rock mechanics; rocks; seismicity; time scales; velocity DO - http://dx.doi.org/10.1029/98GL51231 ER - TY - JOUR T1 - Activity-based cost management part I: Applied to occupational and environmental health organizations AN - 17118934; 4426876 AB - The fundamental purpose of an environmental, safety, and health (ES&H) department or program--to assure worker health and safety and prevent environmental degradation--can be preserved by managers who can use contemporary business management tools to solve complex business and budgetary problems. Traditional cost accounting methods do not provide ES&H managers with the cost data and business process information required to make informed and timely decisions. Activity-based cost management (ABCM) is a business tool that can be used to quantify the cost of ES&H work activities and the cost of developing and delivering ES&H products and services. Additionally, the cost data and business process information that result from applying ABCM can be used to understand why these costs exist. The concepts, principles, and nomenclature associated with the two components of ABCM--activity-based costing (ABC) and activity-based management (ABM)--are discussed in this article, as is the utility of ABCM as a tool for managing ES&H departments and programs. JF - American Industrial Hygiene Association Journal AU - Brandt, M T AU - Levine, S P AU - Smith, D G AU - Ettinger, HJ AD - Los Alamos National Laboratory, Environmental, Safety and Health Division, Los Alamos, NM 87545, USA Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 328 EP - 334 VL - 59 IS - 5 SN - 0002-8894, 0002-8894 KW - Health & Safety Science Abstracts KW - Environmental degradation KW - Occupational safety KW - Economics KW - Occupational health KW - H 1000:Occupational Safety and Health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17118934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Industrial+Hygiene+Association+Journal&rft.atitle=Activity-based+cost+management+part+I%3A+Applied+to+occupational+and+environmental+health+organizations&rft.au=Brandt%2C+M+T%3BLevine%2C+S+P%3BSmith%2C+D+G%3BEttinger%2C+HJ&rft.aulast=Brandt&rft.aufirst=M&rft.date=1998-05-01&rft.volume=59&rft.issue=5&rft.spage=328&rft.isbn=&rft.btitle=&rft.title=American+Industrial+Hygiene+Association+Journal&rft.issn=00028894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Economics; Occupational safety; Occupational health; Environmental degradation ER - TY - CPAPER T1 - Effects of thermomechanical processing on the resulting mechanical properties of 6101 aluminum foam AN - 27522255; 200001-31-0389 (MD); 200001-R5-0159 (AI); 0365889 (EN); A00-27546 (AH) AB - High porosity aluminum was fabricated in a number of ways. The starting material was a cast 6101 aluminum that had a relative density of 9.8 percent. The cast aluminum block was compressed by uniaxial, biaxial, and triaxial densification. Uniaxial compression was done at room temperature and 200 C. Biaxial compression was achieved by unidirectional rolling at room temperature and 200 C. Triaxial compression was done by cold isostatic pressing at 3.4, 6.7, and 34 MPa (0.5, 1.0, and 5.0 ksi). Metallography and mechanical test specimens were machined from the processed bars. The mechanical properties showed that the relative yield strength depended on both relative density and processing temperature. (Author) JF - Materials Research Society Symposia Proceedings AU - Margevicius, R W AU - Stanek, P W AU - Jacobson, L A Y1 - 1998/04/13/ PY - 1998 DA - 1998 Apr 13 SP - 65 EP - 70 KW - Metadex (MD); Aluminium Industry (AI); Environmental Engineering (EN); Aerospace & High Technology (AH) KW - MRS Vol. 521 KW - A00-27538 06-23 KW - AL, Aluminum base alloys KW - 6101 AL Aluminum base alloys KW - Foamed metals KW - Mechanical properties KW - Porous materials KW - Aluminum base alloys KW - Densification KW - Cold rolling KW - Cold isostatic pressing KW - Thermomechanical treatment KW - Stress strain curves KW - Yield strength KW - Processing effects KW - Bend strength KW - Al Mg Si alloys KW - ALUMINUM ALLOYS KW - METAL FOAMS KW - THERMOMECHANICAL TREATMENT KW - MECHANICAL PROPERTIES KW - AXIAL COMPRESSION LOADS KW - Proceeding KW - EE 421:Strength of Building Materials KW - EE 931.2:Physical Properties of Gases, Liquids and Solids KW - EE 537.1:Heat Treatment Processes KW - EE 422.2:Test Methods (EN) KW - Mechanical:Properties KW - EE 541.2:Aluminum Alloys KW - EE 802.3:Chemical Operations UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/27522255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Environmental+Engineering+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Margevicius%2C+R+W%3BStanek%2C+P+W%3BJacobson%2C+L+A&rft.aulast=Margevicius&rft.aufirst=R&rft.date=1998-04-13&rft.volume=&rft.issue=&rft.spage=65&rft.isbn=1558994270&rft.btitle=Effects+of+thermomechanical+processing+on+the+resulting+mechanical+properties+of+6101+aluminum+foam&rft.title=Effects+of+thermomechanical+processing+on+the+resulting+mechanical+properties+of+6101+aluminum+foam&rft.issn=02729172&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-01-21 N1 - Number of references - 2 N1 - Document feature - Numerical Data N1 - SuppNotes - 2 ref., Numerical Data, Photomicrographs, Graphs; Numerical Data. Photomicrographs. Graphs. 2 ref.; vol. 521 N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Identification of SV40 T-antigen mutants that alter T-antigen-induced chromosome damage in human fibroblasts. AN - 79807429; 9551599 AB - The SV40 T antigen causes numerical (aneuploidy) and structural (aberrations) chromosome damage when expressed in human diploid fibroblasts. This chromosome damage precedes the acquisition of neoplastic traits such as anchorage independence, colony formation in reduced serum growth factors, immortalization, or tumorigenicity. Therefore, chromosome damage may be important in acquiring these traits because it could provide a mutational mechanism. To determine how the T antigen causes chromosome damage, point mutations were constructed that altered previously defined biochemical functions of the T protein. Mutant T antigen constructs were introduced into human diploid fibroblasts and selected by using G418. Clones of G418r cells that expressed mutant T antigens were expanded and scored for chromosome damage. Most of these mutant T antigens caused [corrected] levels of chromosome damage similar to those caused by [corrected] the wild-type T antigen. However, some T-antigen mutants induced fewer chromosome changes. A subset of these clones that induced less chromosome damage than wild-type T were examined further. Mutant T-antigen protein levels from this subset were quantified with flow cytometry and compared with wild-type protein expression levels. Mutations of T antigen shown previously to form less stable complexes with p53 caused less chromosome damage. A mutation in the zinc finger domain of T antigen also caused less chromosome damage. Interestingly, a mutant that caused loss of the ATPase activity of T antigen caused an increase in endoreduplicated cells. Also, a correlation was noted between cells expressing very low levels of T antigen (below detection limits when using flow cytometry) and an undamaged karyotype. This correlation indicates that there is a threshold level of T-antigen expression that induces chromosome damage and that expression levels on a per-cell basis rather than on a population basis should be considered in subsequent studies. JF - Cytometry AU - Ray, F A AU - Waltman, M J AU - Lehman, J M AU - Little, J B AU - Nickoloff, J A AU - Kraemer, P M AD - Life Sciences Division, Los Alamos National Laboratory, New Mexico. andrewvray@ccgateway.amc.edu Y1 - 1998/04/01/ PY - 1998 DA - 1998 Apr 01 SP - 242 EP - 250 VL - 31 IS - 4 SN - 0196-4763, 0196-4763 KW - Antigens, Polyomavirus Transforming KW - 0 KW - Tumor Suppressor Protein p53 KW - Index Medicus KW - Clone Cells KW - Aneuploidy KW - Humans KW - Simian virus 40 -- genetics KW - Simian virus 40 -- pathogenicity KW - Gene Expression KW - Tumor Suppressor Protein p53 -- metabolism KW - Protein Binding KW - Mutagenesis, Site-Directed KW - Phenotype KW - Transfection KW - Flow Cytometry KW - Genes, Viral KW - Amino Acid Substitution KW - Simian virus 40 -- immunology KW - Chromosome Aberrations KW - Antigens, Polyomavirus Transforming -- metabolism KW - Antigens, Polyomavirus Transforming -- genetics KW - Mutation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79807429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cytometry&rft.atitle=Identification+of+SV40+T-antigen+mutants+that+alter+T-antigen-induced+chromosome+damage+in+human+fibroblasts.&rft.au=Ray%2C+F+A%3BWaltman%2C+M+J%3BLehman%2C+J+M%3BLittle%2C+J+B%3BNickoloff%2C+J+A%3BKraemer%2C+P+M&rft.aulast=Ray&rft.aufirst=F&rft.date=1998-04-01&rft.volume=31&rft.issue=4&rft.spage=242&rft.isbn=&rft.btitle=&rft.title=Cytometry&rft.issn=01964763&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-06-08 N1 - Date created - 1998-06-08 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Erratum In: Cytometry 1998 Jul 1;32(3):260 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Proximal stratigraphy and syn-eruptive faulting in rhyolitic Grants Ridge Tuff, New Mexico, USA AN - 52610206; 1998-033629 AB - Proximal deposits of the 3.3 Ma Grants Ridge Tuff, part of a 5-km (super 3) topaz rhyolite sequence, are composed of basal pyroclastic flow, surge, and fallout deposits, a thick central ignimbrite, and upper surge and fallout deposits. Large lithic blocks (< or =2 m) of underlying sedimentary and granitic bedrock that are present in lower pyroclastic flow and fallout deposits indicate that the eruptive sequence began with explosive, conduit-excavating eruptions. The massive, nonwelded central ignimbrite displays evidence for postemplacement deformation. The upper pyroclastic surge deposits are dominated by fine ash, some beds containing accretionary lapilli, soft-sediment deformation features, and mud-coated lithic lapilli, indicating an explosive, hydromagmatic component to these later eruptions. The upper fall and surge deposits are overlain by fluvially reworked volcaniclastic deposits that truncate the primary section with a relatively planar surface. The proximal, upper pyroclastic surge and Plinian fall deposits are preserved only in small grabens (5-8 m deep and wide), where they subsided into the ignimbrite and were protected from reworking. The pyroclastic surge and fall deposits within the grabens are offset by numerous small normal faults. The offset on some faults decreases upward through the section, indicating that the faulting process may have been syn-eruptive. Several graben-bounding faults extend downward into the ignimbrite, but the uppermost, fluvially reworked tephra layers are not cut by these faults. The faulting mechanism may have been related to settling and compaction of the 60 m thick, valley-filling ignimbrite along the axis of the paleovalley. Draping surge contacts against the graben faults and brittle and soft-style disruption of the upper pyroclastic surge beds indicate that subsidence was ongoing during the emplacement of the upper eruptive sequence. Seismicity accompanying the late-stage hydromagmatic explosions may have contributed to the abrupt settling and compaction of the ignimbrite. JF - Journal of Volcanology and Geothermal Research AU - Keating, Gordon N AU - Valentine, Greg A Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 37 EP - 49 PB - Elsevier, Amsterdam VL - 81 IS - 1-2 SN - 0377-0273, 0377-0273 KW - United States KW - systems KW - processes KW - rhyolites KW - volcanic rocks KW - ignimbrite KW - igneous rocks KW - New Mexico KW - grabens KW - Cenozoic KW - pyroclastics KW - Tertiary KW - Grants Ridge Tuff KW - pyroclastic flows KW - volcanism KW - Neogene KW - eruptions KW - Cibola County New Mexico KW - Pliocene KW - faults KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52610206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Proximal+stratigraphy+and+syn-eruptive+faulting+in+rhyolitic+Grants+Ridge+Tuff%2C+New+Mexico%2C+USA&rft.au=Keating%2C+Gordon+N%3BValentine%2C+Greg+A&rft.aulast=Keating&rft.aufirst=Gordon&rft.date=1998-04-01&rft.volume=81&rft.issue=1-2&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2897%2900075-9 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. sects., sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Cenozoic; Cibola County New Mexico; eruptions; faults; grabens; Grants Ridge Tuff; igneous rocks; ignimbrite; Neogene; New Mexico; Pliocene; processes; pyroclastic flows; pyroclastics; rhyolites; systems; Tertiary; United States; volcanic rocks; volcanism DO - http://dx.doi.org/10.1016/S0377-0273(97)00075-9 ER - TY - JOUR T1 - Cosmogenic (super 3) He age estimates for the terminal highstand of Plio-Pleistocene Lake Tecopa, California; integration of the upper Amargosa River with the Death Valley drainage basin AN - 52607045; 1998-033398 JF - Abstracts with Programs - Geological Society of America AU - Anderson, Diana E AU - Poths, Jane AU - Wells, Stephen G AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 2 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - lake-level changes KW - isotopes KW - He-3 KW - stable isotopes KW - Cenozoic KW - California KW - Inyo County California KW - paleolimnology KW - dates KW - noble gases KW - Death Valley KW - drainage basins KW - absolute age KW - helium KW - tephrochronology KW - concentration KW - Quaternary KW - isotope ratios KW - Tertiary KW - Neogene KW - Lake Tecopa KW - lacustrine environment KW - Pliocene KW - Pleistocene KW - He-4/He-3 KW - corrections KW - Amargosa River KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52607045?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Cosmogenic+%28super+3%29+He+age+estimates+for+the+terminal+highstand+of+Plio-Pleistocene+Lake+Tecopa%2C+California%3B+integration+of+the+upper+Amargosa+River+with+the+Death+Valley+drainage+basin&rft.au=Anderson%2C+Diana+E%3BPoths%2C+Jane%3BWells%2C+Stephen+G%3BAnonymous&rft.aulast=Anderson&rft.aufirst=Diana&rft.date=1998-04-01&rft.volume=30&rft.issue=6&rft.spage=2&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 50th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absolute age; Amargosa River; California; Cenozoic; concentration; corrections; dates; Death Valley; drainage basins; He-3; He-4/He-3; helium; Inyo County California; isotope ratios; isotopes; lacustrine environment; Lake Tecopa; lake-level changes; Neogene; noble gases; paleolimnology; Pleistocene; Pliocene; Quaternary; stable isotopes; tephrochronology; Tertiary; United States ER - TY - JOUR T1 - Correcting regional seismic discriminants for path effects in western China AN - 52606875; 1998-031704 JF - Bulletin of the Seismological Society of America AU - Hartse, H E AU - Flores, R A AU - Johnson, P A Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 596 EP - 608 PB - Seismological Society of America, Berkeley, CA VL - 88 IS - 2 SN - 0037-1106, 0037-1106 KW - Far East KW - Kyrgyzstan KW - explosions KW - magnitude KW - Tien Shan KW - elastic waves KW - seismic sources KW - noise KW - Commonwealth of Independent States KW - propagation KW - seismic waves KW - western China KW - nuclear explosions KW - interpretation KW - Asia KW - earthquakes KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52606875?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Correcting+regional+seismic+discriminants+for+path+effects+in+western+China&rft.au=Hartse%2C+H+E%3BFlores%2C+R+A%3BJohnson%2C+P+A&rft.aulast=Hartse&rft.aufirst=H&rft.date=1998-04-01&rft.volume=88&rft.issue=2&rft.spage=596&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 14 N1 - PubXState - CA N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - Asia; China; Commonwealth of Independent States; earthquakes; elastic waves; explosions; Far East; interpretation; Kyrgyzstan; magnitude; noise; nuclear explosions; propagation; seismic sources; seismic waves; Tien Shan; western China ER - TY - JOUR T1 - Evolution and emplacement of an unusual veined tephrite-basanite intrusion at El Porticito, NM AN - 52605956; 1998-033446 JF - Abstracts with Programs - Geological Society of America AU - Horning, Robert R AU - Dunbar, Nelia W AU - Kyle, Philip R AU - Baldridge, W Scott AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 10 EP - 11 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - tephrite KW - concentration KW - volcanic rocks KW - igneous rocks KW - Tejana Mesa KW - mantle KW - New Mexico KW - El Porticito New Mexico KW - veins KW - provenance KW - intrusions KW - magmas KW - petrography KW - trace elements KW - basanite KW - Catron County New Mexico KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52605956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Evolution+and+emplacement+of+an+unusual+veined+tephrite-basanite+intrusion+at+El+Porticito%2C+NM&rft.au=Horning%2C+Robert+R%3BDunbar%2C+Nelia+W%3BKyle%2C+Philip+R%3BBaldridge%2C+W+Scott%3BAnonymous&rft.aulast=Horning&rft.aufirst=Robert&rft.date=1998-04-01&rft.volume=30&rft.issue=6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 50th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basanite; Catron County New Mexico; concentration; El Porticito New Mexico; igneous rocks; intrusions; magmas; mantle; New Mexico; petrography; provenance; Tejana Mesa; tephrite; trace elements; United States; veins; volcanic rocks ER - TY - JOUR T1 - Hf isotope constraints on mantle evolution AN - 52598908; 1998-040092 AB - The similarity of the Lu-Hf and Sm-Nd isotope system during most mantle differentiation processes makes the combination of (super 176) Hf/ (super 177) Hf and (super 143) Nd/ (super 144) Nd a very sensitive indicator of a select number of processes. This paper present new Hf-isotope data for a large number of ocean islands and examines the Hf-Nd-Pb isotope relations of oceanic volcanics. Except for HIMU islands, St. Helena and Tubaii, the Hf and Nd isotope ratios in ocean island basalts (OIB) are extremely well correlated. It is argued that crustal recycling (by either continental or oceanic sediments) most likely did not cause the Hf-Nd variations. The correlated (super 176) Hf/ (super 177) Hf- (super 143) Nd/ (super 144) Nd variations in OIB most likely represent the time integrated fractionations which are the result of melting in the presence of garnet. The Hf-isotope systematics of HIMU-type OIB are consistent with these basalts representing recycled oceanic crust and thus support the earlier hypothesis on the origins of HIMU basalts. Chondrites form an array that is at high angle with the OIB array. This allows a choice in the (super 143) Nd/ (super 144) Nd and (super 176) Hf/ (super 177) Hf values for chondritic bulk earth. With a choice of bulk earth at the extreme end of the OIB array the shift of OIB to higher (super 176) Hf/ (super 177) Hf can be explained by either isolation of a significant amount of basalts from the mantle for several billions of year or by fractionation and isolation of small amounts (<1%) of perovskite, during the early history of the Earth. The large range in Hf-isotopes for a limited range in Nd-isotopes in MORB can be explained by addition of small amounts (<1%) of the perovskite material back into the MORB mantle. If chondritic BE is chosen to be internal to the OIB, the well correlated Hf-Nd isotope characteristics in OIB argue against the fractionation of perovskite during the early history of the Earth and the shape of the MORB field remains an enigma. JF - Chemical Geology AU - Salters, Vincent J M AU - White, William M A2 - Albarede, Francis A2 - Blichert-Toft, Janne A2 - Staudigel, Hubert A2 - White, William M. Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 447 EP - 460 PB - Elsevier, Amsterdam VL - 145 IS - 3-4 SN - 0009-2541, 0009-2541 KW - Hf-177/Hf-176 KW - volcanic rocks KW - stony meteorites KW - isotopes KW - igneous rocks KW - perovskite KW - mantle KW - stable isotopes KW - meteorites KW - hafnium KW - basalts KW - oxides KW - HIMU KW - rare earths KW - chondrites KW - processes KW - isotope ratios KW - differentiation KW - indicators KW - Nd-144/Nd-143 KW - metals KW - mid-ocean ridge basalts KW - neodymium KW - ocean-island basalts KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52598908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Hf+isotope+constraints+on+mantle+evolution&rft.au=Salters%2C+Vincent+J+M%3BWhite%2C+William+M&rft.aulast=Salters&rft.aufirst=Vincent+J&rft.date=1998-04-01&rft.volume=145&rft.issue=3-4&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2FS0009-2541%2897%2900154-X L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 55 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - basalts; chondrites; differentiation; hafnium; Hf-177/Hf-176; HIMU; igneous rocks; indicators; isotope ratios; isotopes; mantle; metals; meteorites; mid-ocean ridge basalts; Nd-144/Nd-143; neodymium; ocean-island basalts; oxides; perovskite; processes; rare earths; stable isotopes; stony meteorites; volcanic rocks DO - http://dx.doi.org/10.1016/S0009-2541(97)00154-X ER - TY - JOUR T1 - A note on induced stress changes in hydrocarbon and geothermal reservoirs AN - 52592029; 1998-041068 AB - Earthquakes have been induced by oil and gas production, where pore pressures have decreased, in some cases by several tens of MPa. It has previously been suggested that such earthquakes are caused by poroelastic stressing of crust surrounding the reservoir. Induced earthquakes are also common in geothermal fields, such as The Geysers, where strong correlations between both steam production and condensate injection, and earthquake activity have been observed over the last several decades. Stress measurements within hydrocarbon reservoirs show that the least horizontal stress decreases with declining reservoir pressure, as predicted by poroelasticity. For circular disk-shaped reservoirs, isothermal reduction in pore pressure induces a relative horizontal tension within the reservoir. Production-induced stressing may promote frictional sliding on pre-existing faults. Within the reservoir itself, normal faulting is promoted if the regional stress is extensional and the Biot coefficient is sufficiently large, alpha >0.85 for reasonable coefficients of friction. On the other hand, dilatant fracturing and normal faulting are always promoted, in extensional environments, near the edge of the reservoir or in regions of high pore-pressure gradient. It is suggested that such fracturing could enhance fracture permeability in tight rocks adjacent to portions of the reservoir that experience large reductions in pore pressure due to production. In regional compressional environments, production modestly favors reverse faulting above and below the reservoir. The ratio of thermal to poroelastic stress can be quite large in geothermal reservoirs such as The Geysers. Reservoir-wide energy balance considerations suggest that the average temperature has declined at The Geysers by 6 degrees C during the past 20 years. Reservoir average stress changes are thus on the order of approximately 2 MPa, and are certainly much larger near injection wells and steam-producing fractures. JF - Tectonophysics AU - Segall, Paul AU - Fitzgerald, Shaun D A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 117 EP - 128 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - United States KW - petroleum engineering KW - elasticity KW - thermoelastic properties KW - stress KW - petroleum KW - deformation KW - porosity KW - rock mechanics KW - reservoir rocks KW - geothermal energy KW - California KW - geothermal fields KW - theoretical studies KW - The Geysers KW - pore pressure KW - normal faults KW - reservoir properties KW - Sonoma County California KW - induced earthquakes KW - earthquakes KW - faults KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52592029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=A+note+on+induced+stress+changes+in+hydrocarbon+and+geothermal+reservoirs&rft.au=Segall%2C+Paul%3BFitzgerald%2C+Shaun+D&rft.aulast=Segall&rft.aufirst=Paul&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 30 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - California; deformation; earthquakes; elasticity; faults; geothermal energy; geothermal fields; induced earthquakes; normal faults; petroleum; petroleum engineering; pore pressure; porosity; reservoir properties; reservoir rocks; rock mechanics; Sonoma County California; stress; The Geysers; theoretical studies; thermoelastic properties; United States ER - TY - JOUR T1 - Reservoir characterization using oil-production-induced microseismicity, Clinton County, Kentucky AN - 52591306; 1998-041069 AB - Microseismic monitoring tests were conducted from 1993 to 1995 in the Seventy-Six oil field, Clinton County, Kentucky. Oil is produced from low-porosity, fractured carbonate rocks at <600 m depth. Downhole geophones were deployed in wells located within 120 to 250 m of new production wells. Three tests were conducted sequentially for 9.5-, 20.5-, and 30-week periods during which 110, 180 and 3237 microearthquakes were detected, respectively. Moment-derived magnitudes ranged from -2.5 to 0.9. Volumes extracted ranged from about 1300 to 1800 m (super 3) ; no injection operations were conducted. Gross changes in production rate correlate with event rate: event rate lags changes in production rate by 2 to 3 weeks. Hypocenters and first-motion data have revealed previously undetected, low-angle thrust faults above and below the currently drained depth intervals. Production history, well logs and drill tests indicate that the seismically active faults or fractures are previously drained intervals that have subsequently recovered to hydrostatic pressure via brine invasion. Storage capacity computed for one of these drained fractures implies that total oil production represents about 20% of total pore volume. Correlation of older production intervals and well-log porosity anomalies with the seismically active faults indicate that the oil reservoir in the study area is primarily a set of compartmentalized, low-angle thrust faults. Although low-angle fracture sets have not previously been considered in the exploration and development of the area, the mapped thrust faults are consistent with other investigators' interpretations of oil associated with secondary fracture sets occurring along deeper-seated, wrench-fault structures. Stress determined from composite focal mechanisms indicates a near-surface (<550 m) thrust regime. Maximum horizontal stress direction is N15 degrees W+ or -15 degrees , rotated approximately 90 degrees from regional orientation. The seismic behavior is consistent with poroelastic models that predict slight increases in horizontal compressive stress above and below currently drained volumes. Pressure re-equilibration via brine invasion replacing previously produced oil along the seismically active faults should also be weakly promoting the observed seismic failure. Total estimated production-induced stress change promoting slip is approximately 0.02 MPa. JF - Tectonophysics AU - Rutledge, James T AU - Phillips, W Scott AU - Schuessler, Barbra K A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 129 EP - 152 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - United States KW - petroleum engineering KW - well-logging KW - petroleum KW - production KW - oil and gas fields KW - rock mechanics KW - fractures KW - Seventy-Six Field KW - sedimentary rocks KW - seismicity KW - active faults KW - low-angle faults KW - induced earthquakes KW - Clinton County Kentucky KW - faults KW - monitoring KW - stress KW - magnitude KW - case studies KW - detection KW - thrust faults KW - acoustical logging KW - naturally fractured reservoirs KW - Kentucky KW - reservoir properties KW - carbonate rocks KW - microearthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52591306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Reservoir+characterization+using+oil-production-induced+microseismicity%2C+Clinton+County%2C+Kentucky&rft.au=Rutledge%2C+James+T%3BPhillips%2C+W+Scott%3BSchuessler%2C+Barbra+K&rft.aulast=Rutledge&rft.aufirst=James&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 60 N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - acoustical logging; active faults; carbonate rocks; case studies; Clinton County Kentucky; detection; earthquakes; faults; fractures; induced earthquakes; Kentucky; low-angle faults; magnitude; microearthquakes; monitoring; naturally fractured reservoirs; oil and gas fields; petroleum; petroleum engineering; production; reservoir properties; rock mechanics; sedimentary rocks; seismicity; Seventy-Six Field; stress; thrust faults; United States; well-logging ER - TY - JOUR T1 - Propagation effects of an underground excavation AN - 52591273; 1998-041061 AB - Induced seismicity associated with the horizontal excavation of a simple, cylindrical tunnel within a homogeneous, unfractured rock mass has been used to investigate the propagation effects associated with an underground excavation. The tunnel was found to significantly delay P-wave travel times due to diffraction effects, which were accounted for using a finite-difference transmission technique. Underground excavations will also result in amplitude changes associated with reflection, mode conversion and diffraction effects, which were qualitatively illustrated using an example of a finite-difference solution of the wave equation. Velocity inversion of the induced seismicity data indicated significant velocity changes in various regions around the tunnel, which could be validated with the known rock mass deformation. In the roof of the tunnel where notches formed (analogous to borehole breakouts), inversion results were able to resolve relatively high velocities in the highly stressed zone and decreased velocities delineating the excavation-induced fractured zone. In the region at the end of the tunnel, decreased velocities were found corresponding to where 3D numerical stress models predicted a tensile regime. This controlled case study illustrates how an underground excavation can significantly affect seismic propagation, and how images of the P-wave propagation velocity can be used to delineate induced changes in the rock mass properties. JF - Tectonophysics AU - Maxwell, S C AU - Young, R P A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 17 EP - 30 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - velocity analysis KW - P-waves KW - finite difference analysis KW - Pinawa Manitoba KW - elastic waves KW - excavations KW - rock mechanics KW - tunnels KW - propagation KW - induced earthquakes KW - body waves KW - monitoring KW - three-dimensional models KW - stress KW - statistical analysis KW - inverse problem KW - Manitoba KW - case studies KW - Canada KW - underground installations KW - traveltime KW - Western Canada KW - seismic waves KW - microearthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52591273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Propagation+effects+of+an+underground+excavation&rft.au=Maxwell%2C+S+C%3BYoung%2C+R+P&rft.aulast=Maxwell&rft.aufirst=S&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - body waves; Canada; case studies; earthquakes; elastic waves; excavations; finite difference analysis; induced earthquakes; inverse problem; Manitoba; microearthquakes; monitoring; P-waves; Pinawa Manitoba; propagation; rock mechanics; seismic waves; statistical analysis; stress; three-dimensional models; traveltime; tunnels; underground installations; velocity analysis; Western Canada ER - TY - JOUR T1 - A method to allow temporal variation of velocity in travel-time tomography using microearthquakes induced during hydraulic fracturing AN - 52591134; 1998-041072 AB - Hydraulic injections produce fluid-filled fractures that reduce the seismic velocity of the rock compared to intact rock. The travel times of microearthquakes induced by the injections may be used to discern changes in the rock velocities, as well as locating the microearthquakes. Determining the volumes of rock where the velocities have changed provides indirect evidence for the location of the injected fluid, and the character of the changes produced in the fractured rock. Available data are generally insufficient to resolve both the spatial and temporal changes within the rock. To extract information about temporal changes, and to obtain an improved image of the velocity structure, we chose a parameterization scheme in which the velocities of each block are allowed to change from the background velocity only after a threshold number of microearthquakes have occurred in the block. Regularizing by constraining the velocity of all the altered blocks to be similar helps stabilize the inversion. The regularization can be relaxed somewhat to allow the velocity of an altered block to be different from other altered blocks if the travel-time data are compelling. The parameterization scheme is justified since observations show that the volume of the seismically stimulated rock increases linearly with the volume of the injected fluid. We applied the method to data collected in a region of Precambrian crystalline rock that was injected with 21,600 m (super 3) of water. We use travel times from a total of 3886 microearthquakes that were induced by the injection. The mean RMS travel-time residual decreases about 7%. The velocity structure contains a low-velocity zone located near the injection region. Other distinct low-velocity zones are identified. The pattern of microearthquake locations found using our method appears to contain more structure than the pattern found in locations determined using a homogeneous velocity structure. Two clear low-velocity regions found near the point where water was injected into the rock are separated by a region whose velocity did not change. The region of unaltered velocity had a large number of microearthquakes. JF - Tectonophysics AU - Fehler, Michael AU - House, Leigh S AU - Phillips, W Scott AU - Potter, Robert A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 189 EP - 201 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - United States KW - tomography KW - passive methods KW - hydraulic fracturing KW - geophysical surveys KW - geophysical methods KW - Sandoval County New Mexico KW - inverse problem KW - elastic waves KW - New Mexico KW - hot dry rocks KW - seismic methods KW - rock mechanics KW - geothermal energy KW - Fenton Hill KW - traveltime KW - surveys KW - reservoir properties KW - microearthquakes KW - induced earthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52591134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=A+method+to+allow+temporal+variation+of+velocity+in+travel-time+tomography+using+microearthquakes+induced+during+hydraulic+fracturing&rft.au=Fehler%2C+Michael%3BHouse%2C+Leigh+S%3BPhillips%2C+W+Scott%3BPotter%2C+Robert&rft.aulast=Fehler&rft.aufirst=Michael&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 18 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - earthquakes; elastic waves; Fenton Hill; geophysical methods; geophysical surveys; geothermal energy; hot dry rocks; hydraulic fracturing; induced earthquakes; inverse problem; microearthquakes; New Mexico; passive methods; reservoir properties; rock mechanics; Sandoval County New Mexico; seismic methods; surveys; tomography; traveltime; United States ER - TY - JOUR T1 - In search for a relationship between induced microseismicity and larger events in mines AN - 52591106; 1998-041066 AB - Pattern recognition techniques are applied to mining-induced seismicity data to evaluate the association between microearthquakes and larger events. The example given is from Creighton Mine (Ontario, Canada) owned by Inco Ltd. More than 20,000 events are studied for the 3-month period October-December, 1992, within a volume of size 400X400X180 m (super 3) . The temporal changes in three parameters based on event locations and occurrence times are calculated. Two of the parameters characterize the spatial distribution of microearthquakes. They include the degree of non-randomness over the distance range 0-75 m and the correlation dimension over the distance range 30-120 m, both describing the degree of spatial clustering of events. The third parameter describes the temporal distribution and represents the time interval for occurrence of a constant number of events, thus being opposite to the seismicity rate. The time series of these parameters are compared quantitatively with the times of larger events through a specific technique of association in time. The significance of association is evaluated using randomly simulated time series. The results from this study indicate the existence of significant association of local extrema in the study parameters and the times of occurrence of larger events. In particular, precursory minima in the spatial clustering and seismicity rates are observed. These are, however, not uniquely related to the observable precursory trends that depend on the time elapsed from the occurrence of local extrema to the impending larger events. Thus, precursory seismic quiescence (decreasing values) is more readily observable in the seismicity rates, but both decreasing and increasing spatial clustering can be seen prior to larger events. JF - Tectonophysics AU - Eneva, Mariana A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 91 EP - 104 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - precursors KW - mining KW - Sudbury District Ontario KW - pattern recognition KW - Creighton Mine KW - underground mining KW - time series analysis KW - statistical analysis KW - rock mechanics KW - Ontario KW - cluster analysis KW - case studies KW - Canada KW - mining geology KW - probability KW - temporal distribution KW - Eastern Canada KW - microearthquakes KW - induced earthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52591106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=In+search+for+a+relationship+between+induced+microseismicity+and+larger+events+in+mines&rft.au=Eneva%2C+Mariana&rft.aulast=Eneva&rft.aufirst=Mariana&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - Canada; case studies; cluster analysis; Creighton Mine; earthquakes; Eastern Canada; induced earthquakes; microearthquakes; mining; mining geology; Ontario; pattern recognition; precursors; probability; rock mechanics; statistical analysis; Sudbury District Ontario; temporal distribution; time series analysis; underground mining ER - TY - JOUR T1 - Violent failure of a remnant in a deep South African gold mine AN - 52590906; 1998-041067 AB - The violent failure of a peninsular remnant at a depth of 2300 m below surface occurred in a mine in the Carletonville Goldfield of South Africa, severely damaging a stope mining the Ventersdorp Contact Reef (VCR). At the rockburst site the VCR is 1-2 m thick with a lava hangingwall and quartzite/conglomerate footwall. The remnant had been formed as the result of a fault and "roll" encountered during mining. Observations at the rockburst site led us to conclude that the seismic event, with local magnitude of 2.1, resulted from failure of the remnant with attendant movement into the workings. The event could not be explained by a single shear slip. Two different damage mechanisms were identified. Firstly, the face and footwall on the east side of the remnant were violently ejected into the void between the original face and first line of timber packs following failure and dilation of the remnant and its foundation. Secondly, the hangingwall on the south side of the remnant fragmented and collapsed when subjected to intense seismic shaking. This response was due to the presence of a bedding-parallel fault and calcite-coated joints in the vicinity of a "roll". The stope support system failed to contain the seismically fragmented rock. JF - Tectonophysics AU - Durrheim, R J AU - Haile, A AU - Roberts, M K C AU - Schweitzer, J K AU - Spottiswoode, S M AU - Klokow, J W A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 105 EP - 116 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - mining KW - failures KW - Precambrian KW - numerical models KW - geologic hazards KW - underground mining KW - Gauteng South Africa KW - damage KW - rock mechanics KW - observations KW - Carletonville mining district KW - Ventersdorp Supergroup KW - seismicity KW - rock bursts KW - mining geology KW - Southern Africa KW - Africa KW - South Africa KW - microearthquakes KW - induced earthquakes KW - gold mines KW - earthquakes KW - pillars KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52590906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Violent+failure+of+a+remnant+in+a+deep+South+African+gold+mine&rft.au=Durrheim%2C+R+J%3BHaile%2C+A%3BRoberts%2C+M+K+C%3BSchweitzer%2C+J+K%3BSpottiswoode%2C+S+M%3BKlokow%2C+J+W&rft.aulast=Durrheim&rft.aufirst=R&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 10 N1 - Document feature - illus. incl. strat. col., sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - Africa; Carletonville mining district; damage; earthquakes; failures; Gauteng South Africa; geologic hazards; gold mines; induced earthquakes; microearthquakes; mining; mining geology; numerical models; observations; pillars; Precambrian; rock bursts; rock mechanics; seismicity; South Africa; Southern Africa; underground mining; Ventersdorp Supergroup ER - TY - JOUR T1 - Acoustic emission and ultrasonic-velocity methods used to characterise the excavation disturbance associated with deep tunnels in hard rock AN - 52590876; 1998-041060 AB - Acoustic emission (AE) and ultrasonic-velocity monitoring studies have been undertaken at both the Atomic Energy of Canada Limited (AECL) Underground Research Laboratory (URL) and at the Swedish Nuclear Fuel Waste Management Company (SKB) Hard Rock Laboratory (HRL). At both locations the excavations were tunnels in granitic material at approximately 420 m depth. However, the stress regime was more severe at the URL Mine-by tunnel site than the HRL ZEDEX tunnel. Different parts of the ZEDEX tunnel were created using different excavation techniques. Using AE and ultrasonic techniques to study these tunnels we have been able to examine the nature of the excavation-disturbed zone around the tunnel, as well as examining the effects of different stress regimes and excavation techniques. Studies were undertaken both during and after the Mine-by tunnel excavation and during excavation in the ZEDEX tunnel. AE monitoring in the wall of the Mine-by tunnel during excavation showed that some activity occurred in the sidewall regions, but the spatial density of AE hypocentres increased toward the regions in the floor and roof of the tunnel where breakout notches formed. This sidewall activity was clustered primarily within 0.5 m of the tunnel wall. AE monitoring in the floor of the tunnel showed that small numbers of AE continued to occur in the notch region in the floor of the tunnel over 2 years after excavation was completed. This activity became more acute as the rock was heated, imposing thermally induced stresses on the volume. Ultrasonic-velocity studies both in the floor and the wall of the tunnel showed that the velocity is strongly anisotropic with the direction of slowest velocity orthogonal to the tunnel surface. The velocity increased with distance into the rock from the tunnel surface. In the floor, this effect was seen up to 2 m from the tunnel surface. Most of the change occurred within the first 0.5 m from the tunnel perimeter. At the lower-stress HRL, most of the AE again occur very close to the tunnel surface. The occurrence of AE under relatively low stress conditions suggests that the regions experiencing AE activity were damaged during the excavation process, thereby reducing their strength. The section of tunnel excavated by a tunnel-boring machine had fewer events, clustered much closer to the tunnel surface, than the sections excavated using drill and blast excavation techniques. P-wave velocity changes of only about 0.1% were experienced due to the tunnel excavation for ray paths within zero to 2 m from the tunnel surface indicating that crack damage was relatively low. JF - Tectonophysics AU - Falls, Stephen D AU - Young, R Paul A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 1 EP - 15 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - velocity analysis KW - passive methods KW - P-waves KW - geophysical surveys KW - microcracks KW - igneous rocks KW - granites KW - techniques KW - Pinawa Manitoba KW - Europe KW - elastic waves KW - excavations KW - rock mechanics KW - acoustical methods KW - plutonic rocks KW - tunnels KW - ZEDEX KW - induced earthquakes KW - acoustical emissions KW - body waves KW - experimental studies KW - monitoring KW - Western Europe KW - stress KW - geophysical methods KW - damage KW - mechanical properties KW - Manitoba KW - ultrasonic methods KW - case studies KW - Scandinavia KW - cracks KW - Canada KW - underground installations KW - surveys KW - Western Canada KW - seismic waves KW - thermal effects KW - earthquakes KW - Sweden KW - Aspo Island KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52590876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Acoustic+emission+and+ultrasonic-velocity+methods+used+to+characterise+the+excavation+disturbance+associated+with+deep+tunnels+in+hard+rock&rft.au=Falls%2C+Stephen+D%3BYoung%2C+R+Paul&rft.aulast=Falls&rft.aufirst=Stephen&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - acoustical emissions; acoustical methods; Aspo Island; body waves; Canada; case studies; cracks; damage; earthquakes; elastic waves; Europe; excavations; experimental studies; geophysical methods; geophysical surveys; granites; igneous rocks; induced earthquakes; Manitoba; mechanical properties; microcracks; monitoring; P-waves; passive methods; Pinawa Manitoba; plutonic rocks; rock mechanics; Scandinavia; seismic waves; stress; surveys; Sweden; techniques; thermal effects; tunnels; ultrasonic methods; underground installations; velocity analysis; Western Canada; Western Europe; ZEDEX ER - TY - JOUR T1 - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities AN - 52590618; 1998-041059 JF - Tectonophysics A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 1 EP - 255 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - geothermal energy KW - mining KW - geologic hazards KW - symposia KW - seismicity KW - mining geology KW - underground installations KW - petroleum KW - induced earthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52590618?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Tectonophysics&rft.atitle=International+Union+of+Geodesy+and+Geophysics+general+assembly%2C+IASPEI+symposium+on+New+trends+in+seismological+research%3B+studies+of+seismicity+induced+by+mining%2C+petroleum+and+geothermal+activities&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Document feature - illus. incl. tables, sketch maps N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - earthquakes; geologic hazards; geothermal energy; induced earthquakes; mining; mining geology; petroleum; seismicity; symposia; underground installations ER - TY - JOUR T1 - Microseismicity, stress, and fracture in the Coso geothermal field, California AN - 52590089; 1998-041074 AB - Microseismicity, stress, and fracture in the Coso geothermal field are investigated using seismicity, focal mechanisms and stress analysis. Comparison of hypocenters of microearthquakes with locations of development wells indicates that microseismic activity has increased since the commencement of fluid injection and circulation. Microearthquakes in the geothermal field are proposed as indicators of shear fracturing associated with fluid injection and circulation along major pre-existing fractures. High-seismicity zones are associated with the main fluid-flow paths within the geothermal system. Calculated stress patterns from focal mechanisms provide direct evidence for the boundary between significantly different stress regimes within the Coso geothermal field. Microseismicity in the Coso geothermal field is spatially but not temporally related to regional seismicity extending southeast of the field. The spatial distribution of these events defines a northwest-trending seismic-fracture zone, consistent with a previously defined northwest-striking zone. The abrupt decrease of seismicity below this fracture zone may provide seismic evidence for the existence of a brittle and ductile transition zone at shallow depth beneath the Coso geothermal field. JF - Tectonophysics AU - Feng, Qiuchun AU - Lees, Jonathan M A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 221 EP - 238 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - United States KW - shallow-focus earthquakes KW - Coso Hot Springs KGRA KW - stress KW - deformation KW - thermal waters KW - rock mechanics KW - geothermal energy KW - California KW - geothermal fields KW - fractures KW - Inyo County California KW - fluid injection KW - seismicity KW - reservoir properties KW - focus KW - microearthquakes KW - induced earthquakes KW - earthquakes KW - 19:Seismology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52590089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Microseismicity%2C+stress%2C+and+fracture+in+the+Coso+geothermal+field%2C+California&rft.au=Feng%2C+Qiuchun%3BLees%2C+Jonathan+M&rft.aulast=Feng&rft.aufirst=Qiuchun&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - California; Coso Hot Springs KGRA; deformation; earthquakes; fluid injection; focus; fractures; geothermal energy; geothermal fields; induced earthquakes; Inyo County California; microearthquakes; reservoir properties; rock mechanics; seismicity; shallow-focus earthquakes; stress; thermal waters; United States ER - TY - JOUR T1 - The use of waveform similarity to define planes of mining-induced seismic events AN - 52589822; 1998-041063 AB - Mining-induced seismicity results from a complex interaction of ambient and mining-induced stresses acting on a rock mass that has been intersected by a variety of geological weaknesses and discontinuities. A major challenge is to improve mine design methodology by identifying the geological features that are seismically active and then changing the direction of mining to reduce the potential for shear slip on these features. In this paper we classify seismic events with similar waveforms (doublets) into multiplets, relocate them simultaneously using arrival-time differences based on cross-correlations between all event pairs and then identify the orientation of the most likely plane on which the events are located. Identification of multiplets has been automated, even including events that have not previously been located. In contrast to the conventional "master" event method, no single master event is used: each event is a "master" event for each other event. The absolute location of each multiplet is stabilised by using all manually selected arrival times. Vectors are drawn between all pairs of events and Principal Component Analysis applied to obtain the orientation of the most likely plane of the events in each multiplet. We tested this method on seismic data recorded underground at a site in Blyvooruitzicht Gold Mine, South Africa, in which a strike stabilising pillar has been mined from one end with the aid of precondition blasting. We found that 39% of events that were previously located in a diffuse cloud within a mine pillar, were formed into three distinct multiplets. Two multiplets were oriented parallel to directions of dominant mining-induced stresses, i.e., along the long axis of the pillar and parallel to the active mining face, and the third along a pervasive joint set. JF - Tectonophysics AU - Spottiswoode, S M AU - Milev, A M A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 51 EP - 60 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - mining KW - underground mining KW - principal components analysis KW - stress KW - statistical analysis KW - spectral analysis KW - elastic waves KW - waveforms KW - rock mechanics KW - case studies KW - seismicity KW - mining geology KW - crosscorrelation KW - Southern Africa KW - Africa KW - South Africa KW - Blyvooruitzicht Mine KW - arrival time KW - induced earthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52589822?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=The+use+of+waveform+similarity+to+define+planes+of+mining-induced+seismic+events&rft.au=Spottiswoode%2C+S+M%3BMilev%2C+A+M&rft.aulast=Spottiswoode&rft.aufirst=S&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 16 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - Africa; arrival time; Blyvooruitzicht Mine; case studies; crosscorrelation; earthquakes; elastic waves; induced earthquakes; mining; mining geology; principal components analysis; rock mechanics; seismicity; South Africa; Southern Africa; spectral analysis; statistical analysis; stress; underground mining; waveforms ER - TY - JOUR T1 - Induced microearthquake patterns and oil-producing fracture systems in the Austin chalk AN - 52589728; 1998-041070 AB - Microearthquakes collected during hydraulic stimulation allowed us to study fracture zones in Austin chalk oil reservoirs at two sites in the Giddings field, Texas. We deployed three-component, downhole geophone tools in production wells at depths of 2100 m and greater, one near Cook's Point, and two on the Matcek lease near Caldwell. At Cook's Point, we collected 482 microseismic events during a 4000 m (super 3) (25,000 bbl) hydraulic stimulation in an offset well. We collected 770 events during a similar operation on the Matcek lease. Many seismograms contained reflected phases that constrained location depths to the production zone at the base of the Austin chalk. By restricting all microearthquake locations to production depths, we located 20% of the Cook's Point events and over 60% of the Matcek events. At both sites we observed only the fracture wing closest to the observation stations. Locations formed elongated patterns extending up to 1 km from the stimulation well and trending N60 degrees E, parallel to the known, regional fracture trend. The Cook's Point seismic zone measured over 100 m in width, while long stretches of the Matcek seismic zone narrowed to 30 m or less. We believe that the width of the seismic zone reflected the density of conductive fractures and thus, the volume of the reservoir accessed by the stimulation. Indeed, production rates in the first year following stimulation were much higher at Cook's Point, where we observed the wider of the two seismic zones. JF - Tectonophysics AU - Phillips, W Scott AU - Fairbanks, T D AU - Rutledge, James T AU - Anderson, D W A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 153 EP - 169 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - United States KW - petroleum engineering KW - well stimulation KW - Austin Chalk KW - Cretaceous KW - well-logging KW - petroleum KW - Lee County Texas KW - downhole methods KW - production KW - Upper Cretaceous KW - oil and gas fields KW - rock mechanics KW - observations KW - seismic zoning KW - fractures KW - induced earthquakes KW - acoustical emissions KW - hydraulic fracturing KW - geophysical methods KW - Texas KW - Gulf Coastal Plain KW - Mesozoic KW - seismic methods KW - Giddings Field KW - acoustical logging KW - Gulfian KW - reservoir properties KW - microearthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52589728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Induced+microearthquake+patterns+and+oil-producing+fracture+systems+in+the+Austin+chalk&rft.au=Phillips%2C+W+Scott%3BFairbanks%2C+T+D%3BRutledge%2C+James+T%3BAnderson%2C+D+W&rft.aulast=Phillips&rft.aufirst=W&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 23 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - acoustical emissions; acoustical logging; Austin Chalk; Cretaceous; downhole methods; earthquakes; fractures; geophysical methods; Giddings Field; Gulf Coastal Plain; Gulfian; hydraulic fracturing; induced earthquakes; Lee County Texas; Mesozoic; microearthquakes; observations; oil and gas fields; petroleum; petroleum engineering; production; reservoir properties; rock mechanics; seismic methods; seismic zoning; Texas; United States; Upper Cretaceous; well stimulation; well-logging ER - TY - JOUR T1 - Seismic attenuation in underground mines; a comparative evaluation of methods and results AN - 52589684; 1998-041062 AB - The goal of this study is to evaluate methods of estimating seismic attenuation in underground mining environments, and to relate the attenuation information to rock mass characteristics as determined from geomechanical data. Therefore, four methods--Spectral Ratios, Spectral Decay, Coda-Q, and Multiple Lapse Time Window Analysis (MLTWA)--of measuring attenuation are examined at three underground excavation sites. Each site utilizes microseismic monitoring systems "tuned" to different frequency bandwidths. Considering the MLTWA at the dominant corner frequencies for each site (Site 1, 2.1 to 4.3 kHz; Site 2 and Site 3a, 0.5 to 1.0 kHz; Site 3b, 0.1 to 0.2 kHz), the results indicate that over the entire frequency range examined at all study sites, the intrinsic S-wave Q (Q (sub beta ) ) is nearly constant at approximately 180, and the scattering Q (sub beta ) follows a frequency dependence of Q (sub beta ) = Q (sub o) f (super 1.4) (where Q (sub o) = 120). Interestingly, at Site 3 there is a crossover in the dominance of scattering to intrinsic attenuation, and this trend continues through to the Site 1 data. In order for the frequency-independent intrinsic Q (sub beta ) to be substantiated, it is speculated that a fractal distribution of heterogeneities in the rock mass is responsible for intrinsic attenuation (e.g., velocity anomalies, cracks, inclusions). Conversely, the increasing scattering Q (sub beta ) may be attributed to minimum characteristic underground opening dimensions of 3-5 m, causing decreasing wavelengths to encounter lower scattering due to these openings, and vice versa. JF - Tectonophysics AU - Feustel, A J A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 31 EP - 49 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - P-waves KW - mining KW - Creighton Mine KW - underground mining KW - Pinawa Manitoba KW - elastic waves KW - excavations KW - rock mechanics KW - attenuation KW - Strathcona Mine KW - surface waves KW - Q KW - mining geology KW - induced earthquakes KW - mines KW - body waves KW - Sudbury District Ontario KW - guided waves KW - coda waves KW - spectral analysis KW - Manitoba KW - Ontario KW - case studies KW - Canada KW - Western Canada KW - seismic waves KW - wave dispersion KW - Eastern Canada KW - microearthquakes KW - earthquakes KW - S-waves KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52589684?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Seismic+attenuation+in+underground+mines%3B+a+comparative+evaluation+of+methods+and+results&rft.au=Feustel%2C+A+J&rft.aulast=Feustel&rft.aufirst=A&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 39 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - attenuation; body waves; Canada; case studies; coda waves; Creighton Mine; earthquakes; Eastern Canada; elastic waves; excavations; guided waves; induced earthquakes; Manitoba; microearthquakes; mines; mining; mining geology; Ontario; P-waves; Pinawa Manitoba; Q; rock mechanics; S-waves; seismic waves; spectral analysis; Strathcona Mine; Sudbury District Ontario; surface waves; underground mining; wave dispersion; Western Canada ER - TY - JOUR T1 - Characteristics of microseismic events induced during hydraulic fracturing experiments at the Hijiori hot dry rock geothermal energy site, Yamagata, Japan AN - 52588371; 1998-041071 AB - Microseismicity accompanying hydraulic injection experiments at the Hijiori hot dry rock site was monitored by a network of ten borehole seismic stations deployed at an average distance of 2 km from the injection well. While expanding hydraulic fractures are almost aseismic, they can induce microseismic events. These events are probably caused by shear failures induced by high pore fluid pressures occurring on planes of weakness in the rock surrounding the main hydraulic fracture. Thus we can use these induced events to locate the hydraulic fracture and follow its growth. Microseismic events induced during the 1988 hydraulic fracturing experiment with a high injection pressure were located near the injection point in the early stage of the experiment and clearly migrated towards the east and distributed along a vertical plane. The strike of seismicity is nearly parallel to the direction of the maximum principal stress. The vertical orientation and east-west strike of the seismic events are essentially coplanar with the caldera ring-fault structure in the southern portion of the Hijiori Caldera. This indicates that a preexisting fracture zone was being re-opened and developed in the direction of the maximum principal stress, although microseismic events were caused by shear failures. The space-time distribution of the microseismic events shows that the events migrated at a rate proportional to time to the power 2/3. Assuming that migration of events is attributed to fracture propagation, the propagation of the hydraulically stimulated fracture can be explained by one of two petroleum industry models tested. Seismicity accompanying the 1989 circulation test with a low injection pressure was diffuse and showed a seismic cloud. The permeability was estimated from the hypocenter migration as 10 (super -16) m (super 2) , which is intermediate between the permeability of core samples of granodiorite taken from the production well and the permeability of fractured rocks obtained by an injection test between the injection well and the production well. It is therefore concluded that the seismic cloud accompanying the circulation test is due to the permeation of water into joints which slip when the effective stress is reduced by the increased pore fluid pressure accompanying the hydraulic injection. Microseismic events occur and migrate along those joints. JF - Tectonophysics AU - Sasaki, Shunji A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 171 EP - 188 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - P-waves KW - Far East KW - well-logging KW - elastic waves KW - seismic logging KW - hot dry rocks KW - Yamagata Japan KW - rock mechanics KW - fluid injection KW - pore pressure KW - Asia KW - induced earthquakes KW - hydraulic fracturing KW - body waves KW - experimental studies KW - monitoring KW - Hijiori Japan KW - geothermal energy KW - reservoir properties KW - seismic waves KW - Honshu KW - microearthquakes KW - earthquakes KW - Japan KW - 30:Engineering geology KW - 19:Seismology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52588371?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Characteristics+of+microseismic+events+induced+during+hydraulic+fracturing+experiments+at+the+Hijiori+hot+dry+rock+geothermal+energy+site%2C+Yamagata%2C+Japan&rft.au=Sasaki%2C+Shunji&rft.aulast=Sasaki&rft.aufirst=Shunji&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 48 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - Asia; body waves; earthquakes; elastic waves; experimental studies; Far East; fluid injection; geothermal energy; Hijiori Japan; Honshu; hot dry rocks; hydraulic fracturing; induced earthquakes; Japan; microearthquakes; monitoring; P-waves; pore pressure; reservoir properties; rock mechanics; seismic logging; seismic waves; well-logging; Yamagata Japan ER - TY - JOUR T1 - Shear zone stress release heterogeneity associated with two mining-induced events of M 1.7 and 2.2 AN - 52588336; 1998-041065 AB - We analyse space-time variations in stress release estimates for microseismic events (M<0) and two larger seismic events of M 1.7 and 2.2 associated with a schist shear zone at Lockerby mine, Sudbury (Ontario). These events occurred following sequential sill pillar extractions between October 1992 and January 1994 and were recorded with a local underground array. Also, we calculate shear and normal stress variations along the schist using 3-D numerical models of the excavation. The distribution of post-event microseismicity suggests that the two larger events were related to the failure of local adjacent asperities. They, however, exhibit different source mechanisms as a result of local variations in the orientation of both the schist and principal stresses. Similar heterogeneous patterns along the schist zone are found in static stress drop, apparent stress, and dynamic stress drop distributions. Numerical modelling results show that the stress release patterns are not only influenced by the shear stress, but are also strongly dependent on the resisting stress level. We conclude that high stress release estimates are not necessarily indicative of higher slip potential, and that differences between the conditions at failure of the two larger events are likely due to variations in the normal relative to shear stress levels. JF - Tectonophysics AU - Urbancic, T I AU - Trifu, Cezar I A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 75 EP - 89 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - Sudbury igneous complex KW - stress drops KW - mining KW - underground mining KW - shear stress KW - seismic sources KW - excavations KW - rock mechanics KW - Lockerby Mine KW - mining geology KW - metamorphic rocks KW - heterogeneity KW - induced earthquakes KW - faults KW - shear zones KW - numerical models KW - three-dimensional models KW - schists KW - Ontario KW - case studies KW - Canada KW - Eastern Canada KW - microearthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52588336?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Shear+zone+stress+release+heterogeneity+associated+with+two+mining-induced+events+of+M+1.7+and+2.2&rft.au=Urbancic%2C+T+I%3BTrifu%2C+Cezar+I&rft.aulast=Urbancic&rft.aufirst=T&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 20 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - Canada; case studies; earthquakes; Eastern Canada; excavations; faults; heterogeneity; induced earthquakes; Lockerby Mine; metamorphic rocks; microearthquakes; mining; mining geology; numerical models; Ontario; rock mechanics; schists; seismic sources; shear stress; shear zones; stress drops; Sudbury igneous complex; three-dimensional models; underground mining ER - TY - JOUR T1 - Induced seismicity and the potential for liability under U.S. law AN - 52588222; 1998-041075 AB - Research by seismologists over the past 30+ years has firmly established that some human activities induce seismicity. Sometimes induced seismicity causes injuries to people or property. The activities which induce seismicity generally involve extraction of energy, or natural resources, or the disposal of wastes. As the human population increases these extraction and disposal activities will increase in number of sites and intensity of effort as the demands become greater and the resources scarcer. With these increases the number and severity of damaging induced earthquakes is likely to increase. Induced seismicity may cause injuries by vibrations or by seismically induced ground failure. In either case compensation for injuries caused by induced seismicity should be paid for by the inducer. In the United States the inducer of damaging seismicity can be made to pay for the harm caused. Liability for damage caused by vibrations can be based on several legal theories: trespass, strict liability, negligence and nuisance. Our research revealed no cases in which an appellate court has upheld or rejected the application of tort liability to an induced earthquake situation. However, there are numerous analogous cases that support the application of these legal theories to induced seismicity. Vibrations or concussions due to blasting or heavy machinery are sometimes viewed as a "trespass" analogous to a physical invasion. In some states activities which induce earthquakes might be considered "abnormally dangerous" activities that require companies engaged in them to pay for injuries the quakes cause regardless of how careful the inducers were. In some circumstances, a court may find that an inducer was negligent in its site selection or in maintenance of the project. If induced seismicity interferes with the use or enjoyment of another's land, then the inducing activity may be a legal nuisance, even if the seismicity causes little physical damage. In most states of the United States owners of land owe a duty of lateral support to adjacent landowners, and, in some states, mineral estate owners and lessees owe a duty of subjacent support to the surface owners. Failure to meet those duties of support can result in liability. Seismicity induced by one source might accelerate failure of support originating from another source, leaving both of the parties at fault proportionally liable to the injured parties. Geoscientists can use their roles as investigators, educators and advisors to help companies in the petroleum, mining and geothermal fields avoid liability. JF - Tectonophysics AU - Cypser, Darlene A AU - Davis, Scott D A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 239 EP - 255 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - United States KW - geologic hazards KW - human activity KW - seismic risk KW - legislation KW - damage KW - vibration KW - induced earthquakes KW - earthquakes KW - 19:Seismology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52588222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Induced+seismicity+and+the+potential+for+liability+under+U.S.+law&rft.au=Cypser%2C+Darlene+A%3BDavis%2C+Scott+D&rft.aulast=Cypser&rft.aufirst=Darlene&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 80 N1 - SuppNotes - Includes an appendix N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - damage; earthquakes; geologic hazards; human activity; induced earthquakes; legislation; seismic risk; United States; vibration ER - TY - JOUR T1 - Non-double-couple microearthquakes in the geothermal field of Larderello, central Italy AN - 52588217; 1998-041073 AB - Earthquakes with focal mechanisms deviating from a simple double-couple have been observed in volcanic and geothermal areas. In some cases these events exhibit radiation patterns characterised by prevalence of compressive fields over the focal sphere, which could result from sources containing an enhanced volumetric component. This study makes an attempt to comparing different source mechanism models fitting first onset amplitudes for a set of microearthquakes recorded by a dense local seismograph network deployed by ENEL, the Italian National Power Company, around the geothermal field of Larderello, central Italy. The purpose of this network was mainly that of monitoring eventual induced seismicity in connection with fluid injection routinely carried out in deep wells in order to waste hot water and refill the steam reservoir. Three source models have been tested: (a) simple double-couple (three parameters, after amplitude normalisation), (b) double-couple associated with tensile crack (four parameters), and (c) double-couple associated with compensated linear vector dipole (four parameters). The results, obtained making use of statistical criteria, show a significant component of non-double-couple and volumetric mechanism for a small number of events. The instability of the solutions for shallow earthquakes and the large standard deviation of amplitude residuals suggest the opportunity of refining the model used to describe the velocity and the Q-structure. JF - Tectonophysics AU - Console, R AU - Rosini, R A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 203 EP - 220 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - focal mechanism KW - Tuscany Italy KW - shallow-focus earthquakes KW - statistical analysis KW - Europe KW - Italy KW - thermal waters KW - Southern Europe KW - geothermal energy KW - geothermal fields KW - fractures KW - fluid injection KW - Larderello KW - cracks KW - theoretical models KW - reservoir properties KW - seismic networks KW - tension KW - microearthquakes KW - induced earthquakes KW - earthquakes KW - 19:Seismology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52588217?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Non-double-couple+microearthquakes+in+the+geothermal+field+of+Larderello%2C+central+Italy&rft.au=Console%2C+R%3BRosini%2C+R&rft.aulast=Console&rft.aufirst=R&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. 6 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - cracks; earthquakes; Europe; fluid injection; focal mechanism; fractures; geothermal energy; geothermal fields; induced earthquakes; Italy; Larderello; microearthquakes; reservoir properties; seismic networks; shallow-focus earthquakes; Southern Europe; statistical analysis; tension; theoretical models; thermal waters; Tuscany Italy ER - TY - JOUR T1 - Relative moment tensors of thermally induced microcracks in salt rock AN - 52586872; 1998-041064 AB - P-wave amplitudes were inverted to obtain relative moment tensors and the corresponding radiation patterns of thermally induced microcracks at 850 m depth in the salt mine Asse near Wolfenbuttel, Germany. Seismic waves of microcracks that occurred during a 3-week heating experiment and during the following 12 weeks of cooling were recorded with eight high-frequency piezoelectric sensors (5-100 kHz) positioned a few metres from the sources. About 42,000 microcracking events were automatically located during this observation period. Two microcrack clusters were studied that occurred immediately after switching off the heater power. The clusters were located a few centimetres from the heater borehole. The moment tensors of these clusters indicate dominant shear cracks with a strike-slip radiation pattern. The P- and T-axes directions appear to coincide with directions of measured maximum and minimum horizontal stresses. JF - Tectonophysics AU - Dahm, T AU - Manthei, G AU - Eisenblaetter, J A2 - Trifu, Cezar I. A2 - Fehler, Michael Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 61 EP - 74 PB - Elsevier, Amsterdam VL - 289 IS - 1-3 SN - 0040-1951, 0040-1951 KW - P-waves KW - mining KW - underground mining KW - microcracks KW - well-logging KW - Europe KW - elastic waves KW - seismic logging KW - rock mechanics KW - observations KW - sedimentary rocks KW - mining geology KW - Central Europe KW - Wolfenbuttel Germany KW - cooling KW - induced earthquakes KW - acoustical emissions KW - Asse Mine KW - mines KW - body waves KW - experimental studies KW - chemically precipitated rocks KW - spectral analysis KW - inverse problem KW - evaporites KW - Lower Saxony Germany KW - case studies KW - cracks KW - boreholes KW - moment tensors KW - seismic waves KW - Germany KW - thermal effects KW - microearthquakes KW - earthquakes KW - salt KW - amplitude KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52586872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Relative+moment+tensors+of+thermally+induced+microcracks+in+salt+rock&rft.au=Dahm%2C+T%3BManthei%2C+G%3BEisenblaetter%2C+J&rft.aulast=Dahm&rft.aufirst=T&rft.date=1998-04-01&rft.volume=289&rft.issue=1-3&rft.spage=61&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - International Union of Geodesy and Geophysics general assembly, IASPEI symposium on New trends in seismological research; studies of seismicity induced by mining, petroleum and geothermal activities N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes an appendix N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - acoustical emissions; amplitude; Asse Mine; body waves; boreholes; case studies; Central Europe; chemically precipitated rocks; cooling; cracks; earthquakes; elastic waves; Europe; evaporites; experimental studies; Germany; induced earthquakes; inverse problem; Lower Saxony Germany; microcracks; microearthquakes; mines; mining; mining geology; moment tensors; observations; P-waves; rock mechanics; salt; sedimentary rocks; seismic logging; seismic waves; spectral analysis; thermal effects; underground mining; well-logging; Wolfenbuttel Germany ER - TY - JOUR T1 - Time scales and heterogeneous structure in geodynamic Earth models AN - 52585578; 1998-031126 JF - Science AU - Bunge, Hans-Peter AU - Richards, Mark A AU - Lithgow-Bertelloni, Carolina AU - Baumgardner, John R AU - Grand, Stephen P AU - Romanowicz, Barbara A Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 91 EP - 95 PB - American Association for the Advancement of Science, Washington, DC VL - 280 IS - 5360 SN - 0036-8075, 0036-8075 KW - tomography KW - upwelling KW - geophysical surveys KW - thermal conductivity KW - GEMLAB model KW - mantle KW - heat capacity KW - core-mantle boundary KW - lower mantle KW - Cenozoic KW - finite element analysis KW - time factor KW - heat flow KW - movement KW - heterogeneity KW - statistical analysis KW - geophysical methods KW - rates KW - anomalies KW - subduction KW - convection KW - Mesozoic KW - seismic methods KW - outer core KW - models KW - computer programs KW - plate tectonics KW - velocity structure KW - surveys KW - core KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52585578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Time+scales+and+heterogeneous+structure+in+geodynamic+Earth+models&rft.au=Bunge%2C+Hans-Peter%3BRichards%2C+Mark+A%3BLithgow-Bertelloni%2C+Carolina%3BBaumgardner%2C+John+R%3BGrand%2C+Stephen+P%3BRomanowicz%2C+Barbara+A&rft.aulast=Bunge&rft.aufirst=Hans-Peter&rft.date=1998-04-01&rft.volume=280&rft.issue=5360&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 31 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - anomalies; Cenozoic; computer programs; convection; core; core-mantle boundary; finite element analysis; GEMLAB model; geophysical methods; geophysical surveys; heat capacity; heat flow; heterogeneity; lower mantle; mantle; Mesozoic; models; movement; outer core; plate tectonics; rates; seismic methods; statistical analysis; subduction; surveys; thermal conductivity; time factor; tomography; upwelling; velocity structure ER - TY - JOUR T1 - Identification of mining blasts at mid to far regional distances using low frequency seismic signals AN - 52184122; 2001-071075 JF - Eos, Transactions, American Geophysical Union AU - Hedlin, M A H AU - Stump, B W AU - Pearson, D C AU - Yang, X AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 211 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - mining KW - attenuation KW - monitoring KW - low-frequency signals KW - blasting KW - regional KW - identification KW - seismic sources KW - seismic networks KW - signals KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52184122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Identification+of+mining+blasts+at+mid+to+far+regional+distances+using+low+frequency+seismic+signals&rft.au=Hedlin%2C+M+A+H%3BStump%2C+B+W%3BPearson%2C+D+C%3BYang%2C+X%3BAnonymous&rft.aulast=Hedlin&rft.aufirst=M+A&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 2 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - attenuation; blasting; Comprehensive Test Ban Treaty; identification; low-frequency signals; mining; monitoring; regional; seismic networks; seismic sources; signals ER - TY - JOUR T1 - Hydroacoustic signals from a ground-truth data set of marine explosions AN - 52181215; 2001-071077 JF - Eos, Transactions, American Geophysical Union AU - Brumbaugh, D A AU - Le Bras, R J AU - Wahl, D D AU - Velasco, Aaron A AU - Dysart, P S AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 211 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Point Sur California KW - Far East KW - West Pacific Ocean Islands KW - data processing KW - phase transitions KW - elastic waves KW - waveforms KW - seismic sources KW - refraction methods KW - West Pacific KW - California KW - ground truth KW - DFX KW - Northwest Pacific KW - hydroacoustical methods KW - Asia KW - synthetic data KW - three-dimensional models KW - explosions KW - geophysical methods KW - Wake KW - depth KW - two-dimensional models KW - seismic methods KW - noise KW - North Pacific KW - marine methods KW - marine environment KW - Pacific Ocean KW - traveltime KW - Honshu KW - Japan KW - hydrophones KW - acoustical waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52181215?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Hydroacoustic+signals+from+a+ground-truth+data+set+of+marine+explosions&rft.au=Brumbaugh%2C+D+A%3BLe+Bras%2C+R+J%3BWahl%2C+D+D%3BVelasco%2C+Aaron+A%3BDysart%2C+P+S%3BAnonymous&rft.aulast=Brumbaugh&rft.aufirst=D&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical waves; Asia; California; data processing; depth; DFX; elastic waves; explosions; Far East; geophysical methods; ground truth; Honshu; hydroacoustical methods; hydrophones; Japan; marine environment; marine methods; noise; North Pacific; Northwest Pacific; Pacific Ocean; phase transitions; Point Sur California; refraction methods; seismic methods; seismic sources; synthetic data; three-dimensional models; traveltime; two-dimensional models; United States; Wake; waveforms; West Pacific; West Pacific Ocean Islands ER - TY - JOUR T1 - Seismic event location in China; sensitivity to modeling errors and travel-time residual bias AN - 52179931; 2001-071070 JF - Eos, Transactions, American Geophysical Union AU - Velasco, Aaron A AU - Randall, George E AU - Steck, Lee K AU - Cogbill, Allen H AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 210 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - Far East KW - elastic waves KW - waveforms KW - seismic sources KW - two-dimensional models KW - measurement KW - models KW - errors KW - IASPEI KW - traveltime KW - focus KW - Asia KW - earthquakes KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52179931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Seismic+event+location+in+China%3B+sensitivity+to+modeling+errors+and+travel-time+residual+bias&rft.au=Velasco%2C+Aaron+A%3BRandall%2C+George+E%3BSteck%2C+Lee+K%3BCogbill%2C+Allen+H%3BAnonymous&rft.aulast=Velasco&rft.aufirst=Aaron&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 2 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; China; earthquakes; elastic waves; errors; Far East; focus; IASPEI; measurement; models; seismic sources; traveltime; two-dimensional models; waveforms ER - TY - JOUR T1 - A unified M (sub o) :m (sub b) (Lg) relationship AN - 52179640; 2001-071072 JF - Eos, Transactions, American Geophysical Union AU - Patton, H J AU - Jones, L E AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 211 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Lg-waves KW - elastic waves KW - calibration KW - seismic sources KW - extension tectonics KW - Central Asia KW - surface waves KW - Western U.S. KW - compression tectonics KW - focus KW - tectonics KW - nuclear explosions KW - Asia KW - North America KW - monitoring KW - guided waves KW - explosions KW - statistical analysis KW - magnitude KW - equations KW - measurement KW - seismic waves KW - earthquakes KW - eastern North America KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52179640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+unified+M+%28sub+o%29+%3Am+%28sub+b%29+%28Lg%29+relationship&rft.au=Patton%2C+H+J%3BJones%2C+L+E%3BAnonymous&rft.aulast=Patton&rft.aufirst=H&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; calibration; Central Asia; Comprehensive Test Ban Treaty; compression tectonics; earthquakes; eastern North America; elastic waves; equations; explosions; extension tectonics; focus; guided waves; Lg-waves; magnitude; measurement; monitoring; North America; nuclear explosions; seismic sources; seismic waves; statistical analysis; surface waves; tectonics; United States; Western U.S. ER - TY - JOUR T1 - Differences between the Kuang-Bloxham and Glatzmaier-Roberts models AN - 52178255; 2001-071135 JF - Eos, Transactions, American Geophysical Union AU - Glatzmaier, G A AU - Roberts, P H AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 219 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - numerical models KW - three-dimensional models KW - dynamos KW - data processing KW - fluid phase KW - boundary conditions KW - models KW - rotation KW - velocity structure KW - core KW - Glatzmaier-Roberts model KW - inner core KW - Kuang-Bloxham model KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52178255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Differences+between+the+Kuang-Bloxham+and+Glatzmaier-Roberts+models&rft.au=Glatzmaier%2C+G+A%3BRoberts%2C+P+H%3BAnonymous&rft.aulast=Glatzmaier&rft.aufirst=G&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - boundary conditions; core; data processing; dynamos; fluid phase; Glatzmaier-Roberts model; inner core; Kuang-Bloxham model; models; numerical models; rotation; three-dimensional models; velocity structure ER - TY - JOUR T1 - Quantifying variation in group-velocity measurements, western China AN - 52176038; 2001-071116 JF - Eos, Transactions, American Geophysical Union AU - Jones, L E AU - Patton, H J AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 216 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - Far East KW - geophysical surveys KW - elastic waves KW - calibration KW - CDSN KW - attenuation KW - surface waves KW - quantitative analysis KW - broad-band spectra KW - western China KW - heterogeneity KW - Asia KW - China KW - high-resolution methods KW - monitoring KW - guided waves KW - statistical analysis KW - geophysical methods KW - group velocity KW - seismic methods KW - velocity structure KW - surveys KW - seismic waves KW - wave dispersion KW - filters KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52176038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Quantifying+variation+in+group-velocity+measurements%2C+western+China&rft.au=Jones%2C+L+E%3BPatton%2C+H+J%3BAnonymous&rft.aulast=Jones&rft.aufirst=L&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=216&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; attenuation; broad-band spectra; calibration; CDSN; China; Comprehensive Test Ban Treaty; elastic waves; Far East; filters; geophysical methods; geophysical surveys; group velocity; guided waves; heterogeneity; high-resolution methods; monitoring; quantitative analysis; seismic methods; seismic waves; statistical analysis; surface waves; surveys; velocity structure; wave dispersion; western China ER - TY - JOUR T1 - Late Miocene to Recent transtensional tectonics in northeastern Baja California, Mexico; strain partitioning within the Pacific-North American Plate boundary zone AN - 52018588; 2003-019996 JF - Eos, Transactions, American Geophysical Union AU - Lewis, Claudia J AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 337 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - Quaternary KW - strain KW - plate boundaries KW - strike-slip faults KW - North American Plate KW - Cenozoic KW - Tertiary KW - plate tectonics KW - neotectonics KW - Mexico KW - Baja California KW - Neogene KW - transtension KW - shear KW - tectonics KW - Pacific Plate KW - faults KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018588?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Late+Miocene+to+Recent+transtensional+tectonics+in+northeastern+Baja+California%2C+Mexico%3B+strain+partitioning+within+the+Pacific-North+American+Plate+boundary+zone&rft.au=Lewis%2C+Claudia+J%3BAnonymous&rft.aulast=Lewis&rft.aufirst=Claudia&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Baja California; Cenozoic; faults; Mexico; Neogene; neotectonics; North American Plate; Pacific Plate; plate boundaries; plate tectonics; Quaternary; shear; strain; strike-slip faults; tectonics; Tertiary; transtension ER - TY - JOUR T1 - Neogene asthenosphere-derived volcanism and NE-directed extension in northeastern Spain; constraints on the geodynamic evolution of the western Mediterranean AN - 52017717; 2003-019994 JF - Eos, Transactions, American Geophysical Union AU - Lewis, Claudia J AU - Baldridge, W Scott AU - Asmerom, Yemane AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 336 EP - 337 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - volcanic rocks KW - isotopes KW - crustal thinning KW - Spain KW - igneous rocks KW - Europe KW - northeastern Spain KW - Iberian Peninsula KW - extension tectonics KW - stable isotopes KW - initial neodymium KW - Southern Europe KW - Cenozoic KW - Emporda Spain KW - dates KW - volcanism KW - basalts KW - absolute age KW - tectonics KW - rare earths KW - Ar/Ar KW - alkaline earth metals KW - isotope ratios KW - Nd-144/Nd-143 KW - Sr-87/Sr-86 KW - asthenosphere KW - Tertiary KW - geodynamics KW - Neogene KW - metals KW - Mediterranean Sea KW - neodymium KW - West Mediterranean KW - strontium KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52017717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Neogene+asthenosphere-derived+volcanism+and+NE-directed+extension+in+northeastern+Spain%3B+constraints+on+the+geodynamic+evolution+of+the+western+Mediterranean&rft.au=Lewis%2C+Claudia+J%3BBaldridge%2C+W+Scott%3BAsmerom%2C+Yemane%3BAnonymous&rft.aulast=Lewis&rft.aufirst=Claudia&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=336&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; alkaline earth metals; Ar/Ar; asthenosphere; basalts; Cenozoic; crustal thinning; dates; Emporda Spain; Europe; extension tectonics; geodynamics; Iberian Peninsula; igneous rocks; initial neodymium; isotope ratios; isotopes; Mediterranean Sea; metals; Nd-144/Nd-143; neodymium; Neogene; northeastern Spain; rare earths; Southern Europe; Spain; Sr-87/Sr-86; stable isotopes; strontium; tectonics; Tertiary; volcanic rocks; volcanism; West Mediterranean ER - TY - JOUR T1 - Automatic phase repicking for improved hypocenter locations in large data sets AN - 51036969; 1998-052300 JF - Seismological Research Letters AU - Rowe, C A AU - Aster, R C AU - Fehler, M C AU - Phillips, W S AU - Alde, D M AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 163 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - seismograms KW - P-waves KW - body waves KW - focus KW - elastic waves KW - applications KW - seismic waves KW - microearthquakes KW - earthquakes KW - S-waves KW - automated analysis KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51036969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Automatic+phase+repicking+for+improved+hypocenter+locations+in+large+data+sets&rft.au=Rowe%2C+C+A%3BAster%2C+R+C%3BFehler%2C+M+C%3BPhillips%2C+W+S%3BAlde%2C+D+M%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Rowe&rft.aufirst=C&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - applications; automated analysis; body waves; earthquakes; elastic waves; focus; microearthquakes; P-waves; S-waves; seismic waves; seismograms ER - TY - JOUR T1 - A procedure for estimation of source and propagation amplitude corrections for regional seismic discriminants AN - 51036903; 1998-052268 JF - Seismological Research Letters AU - Taylor, S R AU - Hartse, H E AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 156 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - discriminant analysis KW - seismicity KW - multivariate analysis KW - statistical analysis KW - propagation KW - elastic waves KW - seismic sources KW - earthquakes KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51036903?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=A+procedure+for+estimation+of+source+and+propagation+amplitude+corrections+for+regional+seismic+discriminants&rft.au=Taylor%2C+S+R%3BHartse%2C+H+E%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Taylor&rft.aufirst=S&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - amplitude; discriminant analysis; earthquakes; elastic waves; multivariate analysis; propagation; seismic sources; seismicity; statistical analysis ER - TY - JOUR T1 - Path effects on regional phases in China AN - 51036074; 1998-052322 JF - Seismological Research Letters AU - Phillips, W S AU - Randall, G E AU - Hartse, H E AU - Taylor, S R AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 168 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - upper mantle KW - P-waves KW - body waves KW - Far East KW - mantle KW - elastic waves KW - variations KW - seismicity KW - propagation KW - seismic waves KW - seismic networks KW - Asia KW - earthquakes KW - China KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51036074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Path+effects+on+regional+phases+in+China&rft.au=Phillips%2C+W+S%3BRandall%2C+G+E%3BHartse%2C+H+E%3BTaylor%2C+S+R%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Phillips&rft.aufirst=W&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - amplitude; Asia; body waves; China; earthquakes; elastic waves; Far East; mantle; P-waves; propagation; seismic networks; seismic waves; seismicity; upper mantle; variations ER - TY - JOUR T1 - High resolution surface-wave dispersion studies in China AN - 51035915; 1998-052321 JF - Seismological Research Letters AU - Jones, L E AU - Patton, H J AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 168 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - high-resolution methods KW - Far East KW - guided waves KW - elastic waves KW - surface waves KW - seismicity KW - traveltime KW - propagation KW - seismic waves KW - wave dispersion KW - seismic networks KW - Asia KW - earthquakes KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51035915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=High+resolution+surface-wave+dispersion+studies+in+China&rft.au=Jones%2C+L+E%3BPatton%2C+H+J%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Jones&rft.aufirst=L&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Asia; China; earthquakes; elastic waves; Far East; guided waves; high-resolution methods; propagation; seismic networks; seismic waves; seismicity; surface waves; traveltime; wave dispersion ER - TY - JOUR T1 - Modeling wave propagation through heterogeneous media using the extended local Rytov Fourier method; effects of random heterogeneity on regional waveforms AN - 51034948; 1998-052295 JF - Seismological Research Letters AU - Fehler, M C AU - Huang, L J AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 162 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - finite difference analysis KW - statistical analysis KW - data processing KW - elastic waves KW - waveforms KW - seismicity KW - Fourier analysis KW - deep-focus earthquakes KW - velocity KW - propagation KW - seismic waves KW - Rytov method KW - heterogeneity KW - earthquakes KW - acoustical waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51034948?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Modeling+wave+propagation+through+heterogeneous+media+using+the+extended+local+Rytov+Fourier+method%3B+effects+of+random+heterogeneity+on+regional+waveforms&rft.au=Fehler%2C+M+C%3BHuang%2C+L+J%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Fehler&rft.aufirst=M&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=162&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - acoustical waves; data processing; deep-focus earthquakes; earthquakes; elastic waves; finite difference analysis; Fourier analysis; heterogeneity; propagation; Rytov method; seismic waves; seismicity; statistical analysis; velocity; waveforms ER - TY - JOUR T1 - Modeling of non-linear soil response from earthquakes in Los Angeles AN - 51034861; 1998-052248 JF - Seismological Research Letters AU - Jones, E M AU - Olsen, K B AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 148 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - soils KW - soil mechanics KW - Los Angeles County California KW - elasticity KW - three-dimensional models KW - finite difference analysis KW - nonlinear distortion KW - statistical analysis KW - magnitude KW - elastic waves KW - seismic sources KW - seismic response KW - California KW - Los Angeles California KW - ground motion KW - earthquakes KW - amplitude KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51034861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Modeling+of+non-linear+soil+response+from+earthquakes+in+Los+Angeles&rft.au=Jones%2C+E+M%3BOlsen%2C+K+B%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Jones&rft.aufirst=E&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2014-03-14 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - amplitude; California; earthquakes; elastic waves; elasticity; finite difference analysis; ground motion; Los Angeles California; Los Angeles County California; magnitude; nonlinear distortion; seismic response; seismic sources; soil mechanics; soils; statistical analysis; three-dimensional models; United States ER - TY - JOUR T1 - Subsurface faulting delineation in central New Mexico using three temporally and spatially related earthquake swarms AN - 51033696; 1998-052214 JF - Seismological Research Letters AU - Balch, R S AU - Sanford, A R AU - Jaksha, L H AU - Hartse, H E AU - House, L S AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 141 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - orientation KW - North America KW - swarms KW - magnitude KW - New Mexico KW - strike-slip faults KW - Rio Grande Rift KW - spatial distribution KW - rupture KW - seismicity KW - temporal distribution KW - earthquakes KW - faults KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51033696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Subsurface+faulting+delineation+in+central+New+Mexico+using+three+temporally+and+spatially+related+earthquake+swarms&rft.au=Balch%2C+R+S%3BSanford%2C+A+R%3BJaksha%2C+L+H%3BHartse%2C+H+E%3BHouse%2C+L+S%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Balch&rft.aufirst=R&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - earthquakes; faults; magnitude; New Mexico; North America; orientation; Rio Grande Rift; rupture; seismicity; spatial distribution; strike-slip faults; swarms; temporal distribution; United States ER - TY - JOUR T1 - Stochastic finite-fault modeling of ground motions from the 1994 Northridge, California earthquake; widespread nonlinear response at soil sites AN - 51033451; 1998-052249 JF - Seismological Research Letters AU - Beresnev, I A AU - Atkinson, G M AU - Johnson, P A AU - Field, E H AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 148 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - soils KW - soil mechanics KW - nonlinear distortion KW - seismic response KW - California KW - strong motion KW - stochastic processes KW - seismicity KW - ground motion KW - Northridge earthquake 1994 KW - earthquakes KW - faults KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51033451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Stochastic+finite-fault+modeling+of+ground+motions+from+the+1994+Northridge%2C+California+earthquake%3B+widespread+nonlinear+response+at+soil+sites&rft.au=Beresnev%2C+I+A%3BAtkinson%2C+G+M%3BJohnson%2C+P+A%3BField%2C+E+H%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Beresnev&rft.aufirst=I&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2014-03-14 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - California; earthquakes; faults; ground motion; nonlinear distortion; Northridge earthquake 1994; seismic response; seismicity; soil mechanics; soils; stochastic processes; strong motion; United States ER - TY - JOUR T1 - The 16 August 1997 Novaya Zemlya seismic event as viewed from GSN Station KEV and KBS AN - 51029854; 1998-052363 JF - Seismological Research Letters AU - Hartse, H E AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 176 EP - 177 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - Urals KW - P-waves KW - body waves KW - explosions KW - Arkhangelsk Russian Federation KW - Europe KW - elastic waves KW - Russian Federation KW - seismic sources KW - Novaya Zemlya earthquake 1997 KW - Commonwealth of Independent States KW - seismicity KW - Novaya Zemlya KW - applications KW - seismic waves KW - seismic networks KW - earthquakes KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51029854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=The+16+August+1997+Novaya+Zemlya+seismic+event+as+viewed+from+GSN+Station+KEV+and+KBS&rft.au=Hartse%2C+H+E%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Hartse&rft.aufirst=H&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=176&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - applications; Arkhangelsk Russian Federation; body waves; Commonwealth of Independent States; earthquakes; elastic waves; Europe; explosions; Novaya Zemlya; Novaya Zemlya earthquake 1997; P-waves; Russian Federation; S-waves; seismic networks; seismic sources; seismic waves; seismicity; Urals ER - TY - JOUR T1 - Overview of calcite/opal deposits at or near the proposed high-level nuclear waste site, Yucca Mountain, Nevada, USA; pedogenic, hypogene, or both?; discussion AN - 50922506; 1998-035377 JF - Environmental Geology (Berlin) AU - Stuckless, J S AU - Marshall, B D AU - Vaniman, D T AU - Dudley, W W AU - Peterman, Z E AU - Paces, J B AU - Whelan, J F AU - Taylor, E M AU - Forester, R M AU - O'Leary, D W Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 70 EP - 78 PB - Springer International, New York-Berlin VL - 34 IS - 1 SN - 0943-0105, 0943-0105 KW - United States KW - silicates KW - mineral deposits, genesis KW - silica minerals KW - isotopes KW - stable isotopes KW - ground water KW - Cenozoic KW - fractures KW - neotectonics KW - volcanism KW - heat flow KW - springs KW - framework silicates KW - tectonics KW - Yucca Mountain KW - geochemistry KW - Nevada KW - faults KW - soils KW - epithermal processes KW - critical review KW - alkaline earth metals KW - pedogenesis KW - Quaternary KW - isotope ratios KW - opal KW - veins KW - Nye County Nevada KW - thermal waters KW - calcite KW - Sr-87/Sr-86 KW - metals KW - hot springs KW - carbonates KW - strontium KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50922506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geology+%28Berlin%29&rft.atitle=Overview+of+calcite%2Fopal+deposits+at+or+near+the+proposed+high-level+nuclear+waste+site%2C+Yucca+Mountain%2C+Nevada%2C+USA%3B+pedogenic%2C+hypogene%2C+or+both%3F%3B+discussion&rft.au=Stuckless%2C+J+S%3BMarshall%2C+B+D%3BVaniman%2C+D+T%3BDudley%2C+W+W%3BPeterman%2C+Z+E%3BPaces%2C+J+B%3BWhelan%2C+J+F%3BTaylor%2C+E+M%3BForester%2C+R+M%3BO%27Leary%2C+D+W&rft.aulast=Stuckless&rft.aufirst=J&rft.date=1998-04-01&rft.volume=34&rft.issue=1&rft.spage=70&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology+%28Berlin%29&rft.issn=09430105&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1432-0495/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 56 N1 - SuppNotes - For reference to original see Hill, C. A., et al., Environ. Geol., Vol. 26, No. 2, p. 69-88, 1995 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcite; carbonates; Cenozoic; critical review; epithermal processes; faults; fractures; framework silicates; geochemistry; ground water; heat flow; hot springs; isotope ratios; isotopes; metals; mineral deposits, genesis; neotectonics; Nevada; Nye County Nevada; opal; pedogenesis; Quaternary; silica minerals; silicates; soils; springs; Sr-87/Sr-86; stable isotopes; strontium; tectonics; thermal waters; United States; veins; volcanism; Yucca Mountain ER - TY - JOUR T1 - Development and testing of a bacterial biosensor for toluene-based environmental contaminants AN - 52615298; 1998-027442 AB - A bacterial biosensor for benzene, toluene, and similar compounds has been constructed, characterized, and field tested on contaminated water and soil. The biosensor is based on a plasmid incorporating the transcriptional activator xylR from the TOL plasmid of Pseudomonas putida mt-2. The XylR protein binds a subset of toluene-like compounds and activates transcription at its promoter, P (sub u) . A reporter plasmid was constructed by placing the luc gene for firefly luciferase under the control of XylR and P (sub u) . When Escherichia coli cells were transformed with this plasmid vector, luminescence from the cells was induced in the presence of benzene, toluene, xylenes, and similar molecules. Accurate concentration dependencies of luminescence were obtained and exhibited K (sub 1/2) values ranging from 39.0+ or -3.8 mu M for 3-xylene to 2,690+ or -160 mu M for 3-methylbenzylalcohol (means + or - standard deviations). The luminescence response was specific for only toluene-like molecules that bind to and activate XylR. The biosensor cells were field tested on deep aquifer water, for which contaminant levels were known, and were able to accurately detect toluene derivative contamination in this water. The biosensor cells were also shown to detect BETX (benzene, toluene, and xylene) contamination in soil samples. These results demonstrate the capability of such a bacterial biosensor to accurately measure environmental contaminants and suggest a potential for its inexpensive application in field-ready assays. JF - Applied and Environmental Microbiology AU - Willardson, Barry M AU - Wilkins, Jon F AU - Rand, Timothy A AU - Schupp, James M AU - Hill, Karen K AU - Keim, Paul AU - Jackson, Paul J Y1 - 1998/03// PY - 1998 DA - March 1998 SP - 1006 EP - 1012 PB - American Society for Microbiology, Washington, DC VL - 64 IS - 3 SN - 0099-2240, 0099-2240 KW - soils KW - concentration KW - degradation KW - toluene KW - pollutants KW - pollution KW - Pseudomonas KW - bioremediation KW - benzene KW - remediation KW - organic compounds KW - detection KW - bacteria KW - hydrocarbons KW - transformations KW - water pollution KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52615298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Development+and+testing+of+a+bacterial+biosensor+for+toluene-based+environmental+contaminants&rft.au=Willardson%2C+Barry+M%3BWilkins%2C+Jon+F%3BRand%2C+Timothy+A%3BSchupp%2C+James+M%3BHill%2C+Karen+K%3BKeim%2C+Paul%3BJackson%2C+Paul+J&rft.aulast=Willardson&rft.aufirst=Barry&rft.date=1998-03-01&rft.volume=64&rft.issue=3&rft.spage=1006&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ L2 - http://aem.asm.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AEMIDF N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; bacteria; benzene; bioremediation; concentration; degradation; detection; hydrocarbons; organic compounds; pollutants; pollution; Pseudomonas; remediation; soils; toluene; transformations; water pollution ER - TY - JOUR T1 - Numerical solutions to statistical moment equations of groundwater flow in nonstationary, bounded, heterogeneous media AN - 16555105; 4372625 AB - In this paper we investigate the combined effect of nonstationarity in log hydraulic conductivity and the presence of boundaries on flow in heterogeneous aquifers. We derive general equations governing the statistical moments of hydraulic head for steady state flow by perturbation expansions. Due to their mathematical complexity, we solve the moment equations by the numerical technique of finite differences. The numerical approach has flexibility in handling (moderately) irregular geometry, different boundary conditions, various trends in the mean log hydraulic conductivity, spatial variabilities in the magnitude and direction of mean flow, and different covariance functions, all of which are important factors to consider for real-world applications. The effect of boundaries on the first two statistical moments involving head is strong and persistent. For example, in the case of stationary log hydraulic conductivity the head variance is always finite in a bounded domain while the head variance may be infinite in an unbounded domain. As in many other stochastic models, the statistical moment equations are derived under the assumption that the variance of log hydraulic conductivity is small. Accounting for a spatially varying, large-scale trend in the log hydraulic conductivity field reduces the variance of log hydraulic conductivity. Although this makes the conductivity field nonstationary and significantly increases the mathematical complexity in the problem, it justifies the small-variance assumption for many aquifers. JF - Water Resources Research AU - Zhang, Dongxiao AD - Geoanalysis Group, Los Alamos National Laboratory, Los Alamos, NM, USA Y1 - 1998/03// PY - 1998 DA - Mar 1998 SP - 529 EP - 538 VL - 34 IS - 3 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts KW - Aquifers KW - Numerical analysis KW - Permeability coefficient KW - Finite difference methods KW - Spatial distribution KW - Mathematical equations KW - Groundwater movement KW - Boundary conditions KW - Heterogeneity KW - Stochastic process KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16555105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Numerical+solutions+to+statistical+moment+equations+of+groundwater+flow+in+nonstationary%2C+bounded%2C+heterogeneous+media&rft.au=Zhang%2C+Dongxiao&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1998-03-01&rft.volume=34&rft.issue=3&rft.spage=529&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Numerical analysis; Finite difference methods; Permeability coefficient; Spatial distribution; Groundwater movement; Mathematical equations; Heterogeneity; Boundary conditions; Stochastic process ER - TY - JOUR T1 - PCR analysis of tissue samples from the 1979 Sverdlovsk anthrax victims: The presence of multiple Bacillus anthracis strains in different victims AN - 16301300; 4241637 AB - An outbreak of human anthrax occurred in Sverdlovsk, Union of Soviet Socialists Republic (now Ekaterinburg, Russia) in April 1979. Officials attributed this to consumption of contaminated meat, but Western governments believed it resulted from inhalation of spores accidentally released from a nearby military research facility. Tissue samples from 11 victims were obtained and methods of efficiently extracting high-quality total DNA from these samples were developed. Extracted DNA was analyzed by using PCR to determine whether it contained Bacillus anthracis-specific sequences. Double PCR using 'nested primers' increased sensitivity of the assay significantly. Tissue samples from 11 persons who died during the epidemic were examined. Results demonstrated that the entire complement of B. anthracis toxin and capsular antigen genes required for pathogenicity were present in tissues from each of these victims. Tissue from a vaccination site contained primarily nucleic acids from a live vaccine, although traces of genes from the infecting organisms were also present. PCR analysis using primers that detect the vrrA gene variable region on the B. anthracis chromosome demonstrated that at least four of the five known strain categories defined by this region were present in the tissue samples. Only one category is found in a single B. anthracis strain. JF - Proceedings of the National Academy of Sciences, USA AU - Jackson, P AU - Hugh-Jones, M AU - Adair, D AU - Green, G AU - Hill, K AU - Kuske, C AU - Grinberg, L AU - Abramova, F AU - Keim, P AD - Environmental Molecular Biology Group, Los Alamos National Laboratory, Los Alamos, NM Y1 - 1998/02/03/ PY - 1998 DA - 1998 Feb 03 SP - 1224 EP - 1229 PB - National Academy of Science VL - 95 IS - 3 SN - 0027-8424, 0027-8424 KW - Polymerase chain reaction KW - Russia, Ekaterinburg KW - vvrA gene KW - Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids KW - N 14610:Occurrence, isolation & assay KW - J 02704:Enumeration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16301300?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.atitle=PCR+analysis+of+tissue+samples+from+the+1979+Sverdlovsk+anthrax+victims%3A+The+presence+of+multiple+Bacillus+anthracis+strains+in+different+victims&rft.au=Jackson%2C+P%3BHugh-Jones%2C+M%3BAdair%2C+D%3BGreen%2C+G%3BHill%2C+K%3BKuske%2C+C%3BGrinberg%2C+L%3BAbramova%2C+F%3BKeim%2C+P&rft.aulast=Jackson&rft.aufirst=P&rft.date=1998-02-03&rft.volume=95&rft.issue=3&rft.spage=1224&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.issn=00278424&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - ISSN for electronic version: 1091-6490. ISSN for print version: 0027-8424 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Lunar Prospector searches for polar ice, a metallic core, gas release events, and the Moon's origin AN - 52607950; 1998-031601 AB - Lunar Prospector, the third mission in the "faster, better, cheaper" NASA Discovery Program, was successfully launched from Cape Canaveral on January 6, 1998 (see http://lunar.arc.nasa.gov). Lunar Prospector is now in lunar orbit and is the second Discovery spacecraft to visit a major planetary body in less than a year. Its scientific goals are to map the Moon's surface composition, with special emphasis on the search for polar ice deposits, and its magnetic and gravity fields and determination of the frequency and locations of gas release events. These data will provide a basis for better understanding the current state and resources of the Moon, as well as for further constraints on its origin and evolution. JF - Eos, Transactions, American Geophysical Union AU - Binder, Alan B AU - Feldman, William C AU - Hubbard, G Scott AU - Konopliv, Alex S AU - Lin, Robert P AU - Acuna, Mario H AU - Hood, Lon L Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 97 EP - 97, 108 PB - American Geophysical Union, Washington, DC VL - 79 IS - 8 SN - 0096-3941, 0096-3941 KW - Moon KW - Lunar Prospector Program KW - gases KW - genesis KW - lunar samples KW - lunar interior KW - metals KW - ice KW - core KW - orbital observations KW - lunar orbit KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52607950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Lunar+Prospector+searches+for+polar+ice%2C+a+metallic+core%2C+gas+release+events%2C+and+the+Moon%27s+origin&rft.au=Binder%2C+Alan+B%3BFeldman%2C+William+C%3BHubbard%2C+G+Scott%3BKonopliv%2C+Alex+S%3BLin%2C+Robert+P%3BAcuna%2C+Mario+H%3BHood%2C+Lon+L&rft.aulast=Binder&rft.aufirst=Alan&rft.date=1998-02-01&rft.volume=79&rft.issue=8&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/10.1029%2F98EO00061 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 11 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - core; gases; genesis; ice; lunar interior; lunar orbit; Lunar Prospector Program; lunar samples; metals; Moon; orbital observations; remote sensing DO - http://dx.doi.org/10.1029/98EO00061 ER - TY - JOUR T1 - Single-crystal Raman spectroscopy study of dickite AN - 52589429; 1998-031929 AB - Raman spectra were obtained from the (001), (010), and (100) faces of a St. Claire dickite specimen of known orientation. Raman spectra collected from the (010) and (100) faces of dickite are reported for the first time and reveal vibrational features significantly different from the (001) spectra. Variations in intensities of the v(OH) bands in polarized spectra were used to confirm previous band assignments, to determine the shape and orientation of the local Raman tensors for the OH1 and OH3 groups. The most striking polarization effect observed in the v(OH) region of dickite was the behavior of the a(c'c')a spectrum relative to Raman and IR spectra of other orientations. Unlike previously reported spectra, the dominant feature in this spectrum was the 3643 cm (super -1) band. This large increase in intensity of the 3643 cm (super -1) band in comparison with the other v(OH) bands was related to the fact that Raman spectra were recorded from the edge faces of dickite with the electric vector of the incident laser polarized along the c axis. This permitted observation of vibrational modes polarized along the c axis. Raman frequencies of the v(OH) bands assigned to the OH2 and OH4 groups differ from their IR counterparts by 12 cm (super -1) , suggesting that these groups may be related by a center of symmetry. For comparison, Raman spectra in the v(OH) region were also obtained from individual micro-crystals of kaolinite that were approximately 5 mu m across the (001) face. JF - American Mineralogist AU - Johnston, Clifford T AU - Helsen, Jozef AU - Schoonheydt, Robert A AU - Bish, David L AU - Agnew, Stephen F Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 75 EP - 84 PB - Mineralogical Society of America, Washington, DC VL - 83 IS - 1-2 SN - 0003-004X, 0003-004X KW - silicates KW - Raman spectra KW - clay mineralogy KW - sheet silicates KW - crystal structure KW - spectra KW - kaolinite KW - dickite KW - infrared spectra KW - clay minerals KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52589429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Single-crystal+Raman+spectroscopy+study+of+dickite&rft.au=Johnston%2C+Clifford+T%3BHelsen%2C+Jozef%3BSchoonheydt%2C+Robert+A%3BBish%2C+David+L%3BAgnew%2C+Stephen+F&rft.aulast=Johnston&rft.aufirst=Clifford&rft.date=1998-02-01&rft.volume=83&rft.issue=1-2&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 44 N1 - PubXState - DC N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - clay mineralogy; clay minerals; crystal structure; dickite; infrared spectra; kaolinite; Raman spectra; sheet silicates; silicates; spectra ER - TY - JOUR T1 - Accuracy analysis of the split-step Fourier propagator; implications for seismic modeling and migration AN - 52538014; 1998-070755 AB - The split-step Fourier propagator is a one-way wave propagation method that has been widely used to simulate primary forward and backward (reflected) deterministic/random wave propagation due to its fast computational speed and limited computer memory requirement. The method is useful for rapid modeling of seismic-wave propagation in heterogeneous media where forward scattered waveforms can be considered to be dominant or reverberations can be ignored. The method is based on a solution to the one-way wave equation that requires expanding the square root of an operator and splitting of the resulting noncommutative operators to allow calculation by transferring wave fields between the space and wavenumber domains. Previous analysis of the accuracy of the method has focused on the error related to only a portion of the approximations involved in the propagator. To better understand the accuracy of the propagator, we present a complete formal and numerical accuracy analyses. Our formal analysis indicates that the dominant error of the propagator increases as the first order in the marching interval. We show that nonsymmetrically and symmetrically split-step marching solutions have the same first-order error term. Their second- and third-order error terms are similar. Therefore, the differences between the accuracy of different split-step marching solutions are insignificant. This conclusion is confirmed by our numerical tests. The relation among the phase error of the split-step Fourier propagator, relative velocity perturbation, and propagation angle is numerically studied. The results suggest that the propagator is accurate for up to a 60 degrees propagation angle from the main propagation direction for media with small relative velocity perturbations (10%). JF - Bulletin of the Seismological Society of America AU - Huang, Lian-Jie AU - Fehler, Michael C Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 18 EP - 29 PB - Seismological Society of America, Berkeley, CA VL - 88 IS - 1 SN - 0037-1106, 0037-1106 KW - finite difference analysis KW - statistical analysis KW - data processing KW - elastic waves KW - equations KW - seismic migration KW - Fourier analysis KW - traveltime KW - velocity KW - propagation KW - seismic waves KW - interpretation KW - heterogeneity KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52538014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Accuracy+analysis+of+the+split-step+Fourier+propagator%3B+implications+for+seismic+modeling+and+migration&rft.au=Huang%2C+Lian-Jie%3BFehler%2C+Michael+C&rft.aulast=Huang&rft.aufirst=Lian-Jie&rft.date=1998-02-01&rft.volume=88&rft.issue=1&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 19 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - data processing; elastic waves; equations; finite difference analysis; Fourier analysis; heterogeneity; interpretation; propagation; seismic migration; seismic waves; statistical analysis; traveltime; velocity ER - TY - JOUR T1 - A procedure for estimation of source and propagation amplitude corrections for regional seismic discriminants AN - 50166186; 1998-019481 AB - We outline a procedure for the estimation of frequency-dependent source and propagation amplitude corrections for regional seismic discriminants (source path amplitude correction (SPAC)). For a given station and phase a number of well-recorded earthquakes are inverted for source and path corrections. The method assumes a simple Brune [1970] earthquake-source model and a simple propagation model consisting of a frequency-independent geometrical spreading and frequency-dependent power law Q. The inverted low-frequency levels are then regressed against m (sub b) to derive a set of corrections that are a function of m (sub b) and distance. Once a set of corrections is derived, effects of source scaling and distance as a function of frequency are applied to amplitudes from new events prior to forming discrimination ratios. The resulting discriminants are normally distributed and amenable to multivariate feature selection, classification, and outlier techniques. To date, most discrimination studies have removed distance corrections once a particular amplitude ratio is formed (distance corrected ratio (DCR)). DCR generally works well for phase ratios taken in a particular frequency band. However, when different frequency bands are combined (for phase spectral ratios or cross spectral ratios), significant source-scaling effects (e.g., corner-frequency scaling) can remain, causing the discriminants to vary as a function of event size and to be nonnormally distributed. It is then often necessary to construct nonphysical transformations in an attempt to make the discriminants multivariate normal. The SPAC technique can be used to construct discriminants that are multivariate normal by using simple physical seismic source and propagation models. Moreover, phase amplitude residuals as a function of frequency can be spatially averaged and used as additional path-specific corrections to correct for additional propagation effects such as phase blockages. Copyright 1998 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Taylor, Steven R AU - Hartse, Hans E Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 2781 EP - 2789 PB - American Geophysical Union, Washington, DC VL - 103 IS - B2 SN - 0148-0227, 0148-0227 KW - methods KW - SPAC method KW - distance corrected ratios KW - spectral analysis KW - inverse problem KW - elastic waves KW - seismic sources KW - source path amplitude correction KW - propagation KW - focus KW - seismic waves KW - corrections KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50166186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=A+procedure+for+estimation+of+source+and+propagation+amplitude+corrections+for+regional+seismic+discriminants&rft.au=Taylor%2C+Steven+R%3BHartse%2C+Hans+E&rft.aulast=Taylor&rft.aufirst=Steven&rft.date=1998-02-01&rft.volume=103&rft.issue=B2&rft.spage=2781&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F97JB03292 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - amplitude; corrections; distance corrected ratios; elastic waves; focus; inverse problem; methods; propagation; seismic sources; seismic waves; source path amplitude correction; SPAC method; spectral analysis DO - http://dx.doi.org/10.1029/97JB03292 ER - TY - JOUR T1 - The influence of coatings and fills on flow in fractured, unsaturated tuff porous media systems AN - 50163668; 1998-021038 AB - A numerical study of a single fracture embedded in a porous matrix was performed to investigate the role of fracture coatings and fills on water movement in permeable, fractured porous media. The variables considered were conductivity and continuity of fracture coatings; location, length, and conductivity of fracture fills; combinations of fills and coatings; initial matrix saturation; and inflow boundary conditions. Results from the simulations indicate that in low-saturation, high-capillarity tuff systems, the conditions under which fractures act as rapid flow paths are limited. These conditions include a continuous coating with conductivity several orders of magnitude lower than that of the neighboring matrix, and large inflow rates. However, as initial matrix saturation increases, the amount of fracture flow also increases. Discontinuities in coatings substantially reduce their effectiveness in preventing matrix imbibition. The presence of any coating, however, does produce increased infiltration depths. Fills appear to be effective barriers to fracture flow. Copyright 1998 by the American Geophysical Union. JF - Water Resources Research AU - Soll, Wendy AU - Birdsell, Kay Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 193 EP - 202 PB - American Geophysical Union, Washington, DC VL - 34 IS - 2 SN - 0043-1397, 0043-1397 KW - fractured materials KW - experimental studies KW - volcanic rocks KW - numerical models KW - igneous rocks KW - porous materials KW - capillarity KW - fluid dynamics KW - boundary conditions KW - ground water KW - pyroclastics KW - saturation KW - movement KW - applications KW - tuff KW - hydraulic conductivity KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50163668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=The+influence+of+coatings+and+fills+on+flow+in+fractured%2C+unsaturated+tuff+porous+media+systems&rft.au=Soll%2C+Wendy%3BBirdsell%2C+Kay&rft.aulast=Soll&rft.aufirst=Wendy&rft.date=1998-02-01&rft.volume=34&rft.issue=2&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F97WR02406 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 19 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - applications; boundary conditions; capillarity; experimental studies; fluid dynamics; fractured materials; ground water; hydraulic conductivity; igneous rocks; movement; numerical models; porous materials; pyroclastics; saturation; tuff; volcanic rocks DO - http://dx.doi.org/10.1029/97WR02406 ER - TY - JOUR T1 - On comparing PRA results with operating experience AN - 16534752; 4298347 AB - A procedure is presented for quantifying the consistency between probabilistic risk assessment (PRA) results and corresponding plant-specific operating data not considered in the PRA. The method, which is easily implemented in practice, is based on the use of Bayes p-values for the predictive probability that the observed data would have been produced from the PRA results in conjunction with an assumed binomial or Poisson sampling distribution. Uncertainties in both the PRA results and the operating data are considered. The method is used to quantify the consistency between PRA results and operating data for high-pressure coolant injection system unreliabilities at 11 US commercial boiling water reactors. JF - Reliability Engineering & System Safety AU - Martz, H F AU - Picard, R R AD - Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1998/02// PY - 1998 DA - Feb 1998 SP - 187 EP - 199 VL - 59 IS - 2 SN - 0951-8320, 0951-8320 KW - USA KW - probability KW - reliability KW - uncertainty KW - Risk Abstracts KW - Nuclear reactors KW - Cooling systems KW - R2 23020:Technological risks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16534752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reliability+Engineering+%26+System+Safety&rft.atitle=On+comparing+PRA+results+with+operating+experience&rft.au=Martz%2C+H+F%3BPicard%2C+R+R&rft.aulast=Martz&rft.aufirst=H&rft.date=1998-02-01&rft.volume=59&rft.issue=2&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=Reliability+Engineering+%26+System+Safety&rft.issn=09518320&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cooling systems; Nuclear reactors ER - TY - JOUR T1 - Removal of plutonium-239 and americium-241 from Rocky Flats soil by leaching AN - 16414089; 4315425 AB - A proposed remediation technology to remove Pu and Am from Rocky Flats Plant (RFP) soil combines hot solution (80 degree C) leach with complexing (e.g., citrate) and reducing (e.g., ascorbic acid or dithionite) agents. The majority of the Pu and Am in the RFP soil was associated with soil size particles of 0.25 mm are generally associated with soil organic matter (SOM). A laboratory column-leaching process was used (1) to evaluate the leachability of super(239,240)Pu and super(241)Am from RFP soil using aqueous solutions of sodium chloride (NaCl), sodium citrate (Cit), sodium citrate-ascorbic acid (CAA), and sodium citrate-sodium dithionite (CD) and (2) to determine the effects of temperature and solution concentration to extract super(239,240)Pu and super(241)Am from soil. Additional batch experiments measured the influences of soil particle size, soil organic matter (SOM), and iron oxide on the solubility of alpha active contaminants. Our results show that the complexing-reducing reagent of citrate-ascorbic acid and citrate-dithionite removed at least 70% of alpha active contaminants from RFP site soil. However, the effectiveness of each leaching scheme varies with the particle size fractions. Our results also demonstrate that Pu and Am are effectively removed from RFP site soil at room temperature, and that the solution concentration of 0.1/0.1 or 0.05/0.05 is the optimum molar concentration. JF - Environmental Science & Technology AU - Lu, N AU - Kung, K S AU - Mason, CFV AU - Triay, IR AU - Cotter, C R AU - Pappas, A J AU - Pappas, MEG AD - CST-7, Environmental Science and Waste Technology, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, ningaping@lanl.gov Y1 - 1998/02/01/ PY - 1998 DA - 1998 Feb 01 SP - 370 EP - 374 VL - 32 IS - 3 SN - 0013-936X, 0013-936X KW - rocky flats soil KW - Pollution Abstracts; Water Resources Abstracts KW - P 8000:RADIATION KW - P 5000:LAND POLLUTION KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16414089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Removal+of+plutonium-239+and+americium-241+from+Rocky+Flats+soil+by+leaching&rft.au=Lu%2C+N%3BKung%2C+K+S%3BMason%2C+CFV%3BTriay%2C+IR%3BCotter%2C+C+R%3BPappas%2C+A+J%3BPappas%2C+MEG&rft.aulast=Lu&rft.aufirst=N&rft.date=1998-02-01&rft.volume=32&rft.issue=3&rft.spage=370&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - The uptake of radionuclides by beans, squash, and corn growing in contaminated alluvial soils at Los Alamos National Laboratory. AN - 79716911; 9491570 AB - Pinto beans (Phaselous vulgaris), sweet corn (Zea mays), and zucchini squash (Cucurbita pepo) were grown in a field pot study using alluvial floodplain soils contaminated with various radionuclides within Los Alamos Canyon (LAC) at Los Alamos National Laboratory, New Mexico. Soils as well as washed edible (fruit) and nonedible (stems and leaves) crop tissues were analyzed for tritium (3H), cesium (137Cs), strontium (90Sr), plutonium (238Pu and 239,240Pu), americium (241Am), and total uranium (totU). Most radionuclides, with the exception of 3H and totU, in soil and crop tissues from LAC were detected in significantly higher concentrations (p < 0.05) than in soil or crop tissues collected from regional background locations. Significant differences in radionuclide concentrations among crop species (squash were generally higher than beans or corn) and plant parts (nonedible tissue were generally higher than edible tissue) were observed. Most soil-to-plant concentration ratios for radionuclides in edible and nonedible crop tissues grown in soils from LAC were within default values in the literature commonly used in dose and risk assessment models. Overall, the maximum net positive committed effective dose equivalent (CEDE)--the CEDE plus two sigma for each radioisotope minus background and then all positive doses summed--to a hypothetical 50-year resident that ingested 352 lb ([160 kg]; the maxiumum ingestion rate per person per year) of beans, corn, and squash in equal proportions was 74 mrem y-1 (740 microS y-1). This upper bound dose was below the International Commission on Radiological Protection permissible dose limit of 100 mrem y-1 (1000 microS y-1) from all pathways and corresponds to a risk of an excess cancer fatality of 3.7 x 10(-5) (37 in a million), which is also below the U.S. Environmental Protection Agency's guideline of 10(-4). JF - Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes AU - Fresquez, P R AU - Armstrong, D R AU - Mullen, M A AU - Naranjo, L AD - Environment, Safety and Health Division, Los Alamos National Laboratory, NM 87545, USA. Y1 - 1998/01// PY - 1998 DA - January 1998 SP - 99 EP - 121 VL - 33 IS - 1 SN - 0360-1234, 0360-1234 KW - Soil Pollutants, Radioactive KW - 0 KW - Index Medicus KW - Risk Factors KW - Neoplasms, Radiation-Induced -- epidemiology KW - Laboratories KW - Humans KW - New Mexico KW - Species Specificity KW - Vegetables -- growth & development KW - Environmental Health KW - Plants, Medicinal KW - Nuclear Warfare KW - Vegetables -- metabolism KW - Fabaceae -- growth & development KW - Zea mays -- metabolism KW - Soil Pollutants, Radioactive -- metabolism KW - Zea mays -- growth & development KW - Fabaceae -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79716911?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+science+and+health.+Part.+B%2C+Pesticides%2C+food+contaminants%2C+and+agricultural+wastes&rft.atitle=The+uptake+of+radionuclides+by+beans%2C+squash%2C+and+corn+growing+in+contaminated+alluvial+soils+at+Los+Alamos+National+Laboratory.&rft.au=Fresquez%2C+P+R%3BArmstrong%2C+D+R%3BMullen%2C+M+A%3BNaranjo%2C+L&rft.aulast=Fresquez&rft.aufirst=P&rft.date=1998-01-01&rft.volume=33&rft.issue=1&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+science+and+health.+Part.+B%2C+Pesticides%2C+food+contaminants%2C+and+agricultural+wastes&rft.issn=03601234&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-26 N1 - Date created - 1998-03-26 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Geochemistry and geochronology of Quaternary mafic volcanic rocks in the vicinity of Carrizozo, New Mexico AN - 742903029; 2010-044139 AB - We report here elemental and chronologic information for the Quaternary lavas from the vicinity of Carrizozo, New Mexico. The geochemistry of these lavas is transitional between hypersthene and nepheline normative and is very similar to other lavas in the region, e.g., the Jornado del Muerto volcanic field. The magmatic noble gas signature, here given in terms of (super 3) He/ (super 4) He, correlates well with radiogenic isotopes and indicates that the magmas either were derived from a mantle source more enriched in incompatible elements than average asthenosphere or have seen some crustal contamination. We have measured the age of the Carrizozo upper flow using (super 3) He cosmogenic surface exposure dating. The age of 4800+ or -1700 yrs before present (ybp) agrees well with other recent determinations. The Broken Back portion of the field is older. Cone morphology and degree of surficial alteration of magnetite to hematite, as deduced from remote sensing, indicates that the cones may be approximately 100 ka old. JF - Guidebook - New Mexico Geological Society AU - Anthony, Elizabeth Y AU - Hoffer, Jerry M AU - Williams, Wendi J W AU - Poths, Jane AU - Penn, Brian S A2 - Mack, Greg H. A2 - Austin, George S. A2 - Barker, James M. Y1 - 1998 PY - 1998 DA - 1998 SP - 116 EP - 122 PB - New Mexico Geological Society, Socorro, NM VL - 49 SN - 0077-8567, 0077-8567 KW - United States KW - silicates KW - Carrizozo New Mexico KW - volcanic rocks KW - isotopes KW - igneous rocks KW - halogens KW - mantle KW - mafic composition KW - New Mexico KW - stable isotopes KW - Lincoln County New Mexico KW - Cenozoic KW - radioactive isotopes KW - pyroxene group KW - hypersthene KW - sampling KW - hematite KW - dates KW - Broken Back New Mexico KW - noble gases KW - age KW - Carrizozo volcanic field KW - absolute age KW - oxides KW - nepheline group KW - helium KW - framework silicates KW - chemical composition KW - geochemistry KW - chain silicates KW - chlorine KW - Quaternary KW - isotope ratios KW - magma contamination KW - Cl-36 KW - nepheline KW - lava KW - orthopyroxene KW - He-4/He-3 KW - basanite KW - remote sensing KW - magnetite KW - 03:Geochronology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742903029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Geochemistry+and+geochronology+of+Quaternary+mafic+volcanic+rocks+in+the+vicinity+of+Carrizozo%2C+New+Mexico&rft.au=Anthony%2C+Elizabeth+Y%3BHoffer%2C+Jerry+M%3BWilliams%2C+Wendi+J+W%3BPoths%2C+Jane%3BPenn%2C+Brian+S&rft.aulast=Anthony&rft.aufirst=Elizabeth&rft.date=1998-01-01&rft.volume=49&rft.issue=&rft.spage=116&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society 49th annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 24 N1 - PubXState - NM N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - absolute age; age; basanite; Broken Back New Mexico; Carrizozo New Mexico; Carrizozo volcanic field; Cenozoic; chain silicates; chemical composition; chlorine; Cl-36; dates; framework silicates; geochemistry; halogens; He-4/He-3; helium; hematite; hypersthene; igneous rocks; isotope ratios; isotopes; lava; Lincoln County New Mexico; mafic composition; magma contamination; magnetite; mantle; nepheline; nepheline group; New Mexico; noble gases; orthopyroxene; oxides; pyroxene group; Quaternary; radioactive isotopes; remote sensing; sampling; silicates; stable isotopes; United States; volcanic rocks ER - TY - JOUR T1 - Flow cytometric fluorescence lifetime analysis of DNA-binding probes. AN - 69186312; 10076766 AB - A new dimension has been added to multiparameter flow cytometric analysis through the recent development of techniques for rapidly measuring the fluorescence lifetime of probes bound to single cells. The lifetime measurements are made by phase-sensitive detection techniques in a flow cytometer (FCM) that also analyzes fluorescence intensity and other optical properties of stained cells. These lifetime assays have potential for elucidating the microenvironment of the interaction of fluorochrome probes and subcellular target molecules. Alterations in the lifetime of DNA probes have been observed in cells in different phases of the cell cycle, in different cell types, in differentiating cells, and in apoptotic cells with damaged chromatin. Lifetime differences noted also for intercalating dyes bound to DNA and dsRNA, indicated modifications in the modes of binding and provide the potential for analyzing both corformational states and nucleic acid metabolism. Future developments in the technology will provide multiple lifetime assays and thereby allow for detection and quantitation of selected subcellular probe-complexes with different lifetime signatures. These novel assays will expand the applications for quantitative studies on the binding of various chemical agents to DNA and other molecular targets in cells, and further improve methods for rapid screening of chemotherapeutic agents or environmentally toxic compounds. JF - European journal of histochemistry : EJH AU - Sailer, B L AU - Steinkamp, J A AU - Crissman, H A AD - Los Alamos National Laboratory, NM 87545, USA. Y1 - 1998 PY - 1998 DA - 1998 SP - 19 EP - 27 VL - 42 Spec No SN - 1121-760X, 1121-760X KW - DNA Probes KW - 0 KW - Fluorescent Dyes KW - Histones KW - Propidium KW - 36015-30-2 KW - Ethidium KW - EN464416SI KW - Index Medicus KW - Animals KW - Fluorescence KW - Apoptosis KW - HL-60 Cells KW - Humans KW - Male KW - Testis -- cytology KW - Flow Cytometry -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69186312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=European+journal+of+histochemistry+%3A+EJH&rft.atitle=Flow+cytometric+fluorescence+lifetime+analysis+of+DNA-binding+probes.&rft.au=Sailer%2C+B+L%3BSteinkamp%2C+J+A%3BCrissman%2C+H+A&rft.aulast=Sailer&rft.aufirst=B&rft.date=1998-01-01&rft.volume=42+Spec+No&rft.issue=&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=European+journal+of+histochemistry+%3A+EJH&rft.issn=1121760X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-06-01 N1 - Date created - 1999-06-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Seismic wave propagation and scattering in the heterogeneous Earth AN - 52604252; 1998-035986 JF - AIP Series in Modern Acoustics and Signal Processing AU - Sato, Haruo AU - Fehler, Michael C Y1 - 1998 PY - 1998 DA - 1998 SP - 308 PB - Springer - Verlag, New York, NY VL - [7] KW - seismograms KW - three-component seismographs KW - Earth KW - guided waves KW - lithosphere KW - human activity KW - coda waves KW - elastic waves KW - seismographs KW - layered materials KW - models KW - attenuation KW - surface waves KW - velocity structure KW - propagation KW - Born approximation KW - seismic waves KW - wave dispersion KW - heterogeneity KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52604252?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Sato%2C+Haruo%3BFehler%2C+Michael+C&rft.aulast=Sato&rft.aufirst=Haruo&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0387983295&rft.btitle=Seismic+wave+propagation+and+scattering+in+the+heterogeneous+Earth&rft.title=Seismic+wave+propagation+and+scattering+in+the+heterogeneous+Earth&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 476 N1 - PubXState - NY N1 - Document feature - illus. incl. block diag., sect., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #04748 N1 - SubjectsTermNotLitGenreText - attenuation; Born approximation; coda waves; Earth; earthquakes; elastic waves; guided waves; heterogeneity; human activity; layered materials; lithosphere; models; propagation; seismic waves; seismograms; seismographs; surface waves; three-component seismographs; velocity structure; wave dispersion ER - TY - JOUR T1 - Metal emissions from Kilauea; proportions, source strength, and contribution to current estimates of volcanic injection to the atmosphere AN - 52570310; 1998-055368 JF - Open-File Report - U. S. Geological Survey AU - Hinckley, T K AU - Wilson, S A AU - Lamothe, P J AU - Landis, G P AU - Finnegan, D L AU - Gerlach, T M AU - Thornber, C R AU - Modreski, Peter J Y1 - 1998 PY - 1998 DA - 1998 SP - 32 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - concentration KW - Hawaii Island KW - Hawaii County Hawaii KW - Hawaii KW - atmosphere KW - East Pacific Ocean Islands KW - gases KW - volatiles KW - metals KW - eruptions KW - Oceania KW - volcanoes KW - Polynesia KW - volcanic ash KW - Kilauea KW - chemical composition KW - USGS KW - geochemistry KW - 24:Quaternary geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52570310?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Metal+emissions+from+Kilauea%3B+proportions%2C+source+strength%2C+and+contribution+to+current+estimates+of+volcanic+injection+to+the+atmosphere&rft.au=Hinckley%2C+T+K%3BWilson%2C+S+A%3BLamothe%2C+P+J%3BLandis%2C+G+P%3BFinnegan%2C+D+L%3BGerlach%2C+T+M%3BThornber%2C+C+R%3BModreski%2C+Peter+J&rft.aulast=Hinckley&rft.aufirst=T&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - SuppNotes - Reprint of Hinckley, T. K. et al. in EOS (American Geophysical Union transactions), Vol. 78, No. 46 sup., p. F803-804, 1997 N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - atmosphere; chemical composition; concentration; East Pacific Ocean Islands; eruptions; gases; geochemistry; Hawaii; Hawaii County Hawaii; Hawaii Island; Kilauea; metals; Oceania; Polynesia; United States; USGS; volatiles; volcanic ash; volcanoes ER - TY - JOUR T1 - A parallel implementation of kriging with a trend AN - 52526235; 1999-005585 JF - In Situ AU - Gajraj, Allyson AU - Joubert, Wayne AU - Jones, Jack Y1 - 1998 PY - 1998 DA - 1998 SP - 239 EP - 261 PB - Marcel Dekker, New York, NY VL - 22 IS - 2 SN - 0146-2520, 0146-2520 KW - models KW - computer programs KW - mathematical methods KW - statistical analysis KW - kriging KW - data processing KW - prediction KW - mineralization KW - algorithms KW - simulation KW - mineral resources KW - 26A:Economic geology, general, deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52526235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=In+Situ&rft.atitle=A+parallel+implementation+of+kriging+with+a+trend&rft.au=Gajraj%2C+Allyson%3BJoubert%2C+Wayne%3BJones%2C+Jack&rft.aulast=Gajraj&rft.aufirst=Allyson&rft.date=1998-01-01&rft.volume=22&rft.issue=2&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=In+Situ&rft.issn=01462520&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 10 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ISOMDJ N1 - SubjectsTermNotLitGenreText - algorithms; computer programs; data processing; kriging; mathematical methods; mineral resources; mineralization; models; prediction; simulation; statistical analysis ER - TY - JOUR T1 - Seismic stimulation of oil production in mature reservoirs AN - 52521208; 1999-011741 AB - Our research project has three major focus areas: (i) laboratory flow enhancement experiments on rock cores, (ii) numerical modeling of physical mechanisms for enhanced fluid mobility, and (iii) full-scale field stimulation tests. The laboratory and modeling efforts are providing quantitative empirical data and predictive tools for designing controlled field experiments. JF - Annual Meeting Expanded Abstracts - American Association of Petroleum Geologists AU - Sharma, Arvind AU - Roberts, Peter M AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - American Association of Petroleum Geologists and Society of Economic Paleontologists and Mineralogists, Tulsa, OK VL - 1998 SN - 0094-0038, 0094-0038 KW - United States KW - experimental studies KW - technology KW - well stimulation KW - geophysical methods KW - petroleum KW - enhanced recovery KW - production KW - recovery KW - cores KW - seismic methods KW - reservoir rocks KW - models KW - history KW - reserves KW - quantitative analysis KW - applications KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52521208?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Meeting+Expanded+Abstracts+-+American+Association+of+Petroleum+Geologists&rft.atitle=Seismic+stimulation+of+oil+production+in+mature+reservoirs&rft.au=Sharma%2C+Arvind%3BRoberts%2C+Peter+M%3BAnonymous&rft.aulast=Sharma&rft.aufirst=Arvind&rft.date=1998-01-01&rft.volume=1998&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Annual+Meeting+Expanded+Abstracts+-+American+Association+of+Petroleum+Geologists&rft.issn=00940038&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Association of Petroleum Geologists 1998 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 1999-01-01 N1 - PubXState - OK N1 - SuppNotes - Extended abstracts available on CD N1 - Last updated - 2012-06-07 N1 - CODEN - APGAB2 N1 - SubjectsTermNotLitGenreText - applications; cores; enhanced recovery; experimental studies; geophysical methods; history; models; petroleum; production; quantitative analysis; recovery; reserves; reservoir rocks; seismic methods; technology; United States; well stimulation ER - TY - JOUR T1 - The interplay of mechanical and thermo-fluid dynamical systems during unrest episodes in calderas; the Campi Flegrei Caldera (Italy) case AN - 52506037; 1999-020871 JF - Annales Geophysicae (1988) AU - Orsi, G AU - Petrazzuoli, S M AU - Wohletz, K AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 190 PB - European Geophysical Society, Kathlenburg-Lindau VL - 16, Suppl. 1 SN - 0992-7689, 0992-7689 KW - volcanic rocks KW - Phlegraean Fields KW - geologic hazards KW - collapse structures KW - igneous rocks KW - subsidence KW - Europe KW - fluid dynamics KW - Italy KW - Southern Europe KW - finite element analysis KW - volcanic features KW - geothermal systems KW - hydrodynamics KW - resurgence KW - three-dimensional models KW - statistical analysis KW - mechanical properties KW - deformation KW - thermal waters KW - Campania Italy KW - calderas KW - pyroclastics KW - volcanic risk KW - eruptions KW - thermal effects KW - permeability KW - 22:Environmental geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52506037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annales+Geophysicae+%281988%29&rft.atitle=The+interplay+of+mechanical+and+thermo-fluid+dynamical+systems+during+unrest+episodes+in+calderas%3B+the+Campi+Flegrei+Caldera+%28Italy%29+case&rft.au=Orsi%2C+G%3BPetrazzuoli%2C+S+M%3BWohletz%2C+K%3BAnonymous&rft.aulast=Orsi&rft.aufirst=G&rft.date=1998-01-01&rft.volume=16%2C+Suppl.+1&rft.issue=&rft.spage=190&rft.isbn=&rft.btitle=&rft.title=Annales+Geophysicae+%281988%29&rft.issn=09927689&rft_id=info:doi/ L2 - http://www.ann-geophys.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Conference title - 23rd general assembly of the European Geophysical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - ANNGEA N1 - SubjectsTermNotLitGenreText - calderas; Campania Italy; collapse structures; deformation; eruptions; Europe; finite element analysis; fluid dynamics; geologic hazards; geothermal systems; hydrodynamics; igneous rocks; Italy; mechanical properties; permeability; Phlegraean Fields; pyroclastics; resurgence; Southern Europe; statistical analysis; subsidence; thermal effects; thermal waters; three-dimensional models; volcanic features; volcanic risk; volcanic rocks ER - TY - JOUR T1 - Hydrogeologic framework model and potential effects of ground-water withdrawal on the springs on the south rim of the Grand Canyon, Arizona AN - 52501087; 1999-025587 AB - Numerous seeps and springs drain into the Grand Canyon from the South Rim. These springs provide an oasis for flora, fauna, and humans alike. As pressure to develop supplies of ground water increase, it is critical to determine the impacts of ground-water withdrawals on these seeps and springs. The study area in this project includes the entire Redwall-Muav sub-basin and any perched aquifers draining into the Grand Canyon from the South Rim. The purpose of the research will be to investigate the sustainability of pumping water from the Redwall-Muav Aquifer. The study includes determination if the system is a fracture, conduit, or porous media system and identification of the storage capacity of the aquifer. The effect on the more than 30 springs draining this aquifer due to human induced stresses from pumping as well as the question of which springs could be adversely affected will also be addressed. We have identified the pertinent hydrogeologic parameters of this deep regional system and are creating a geologic framework model using Stratamodel 3-D modeling software. This framework model will include structure, stratigraphy, hydrogeology, discharge rates, recharge rates, conductivities, and connectivities of strata. This framework model will provide the database for a new generation of more accurate flow models. JF - Abstracts with Programs - Geological Society of America AU - Wilson, E S AU - Springer, A E AU - Winter, C L AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 68 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - water supply KW - three-dimensional models KW - Stratamodel KW - human activity KW - pumping KW - data processing KW - effects KW - Redwall-Muav Subbasin KW - seepage KW - ground water KW - aquifers KW - Redwall-Muav Aquifer KW - Grand Canyon KW - computer programs KW - perched aquifers KW - movement KW - Arizona KW - data bases KW - springs KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52501087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Hydrogeologic+framework+model+and+potential+effects+of+ground-water+withdrawal+on+the+springs+on+the+south+rim+of+the+Grand+Canyon%2C+Arizona&rft.au=Wilson%2C+E+S%3BSpringer%2C+A+E%3BWinter%2C+C+L%3BAnonymous&rft.aulast=Wilson&rft.aufirst=E&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=68&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1998 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; Arizona; computer programs; data bases; data processing; effects; Grand Canyon; ground water; human activity; movement; perched aquifers; pumping; Redwall-Muav Aquifer; Redwall-Muav Subbasin; seepage; springs; Stratamodel; three-dimensional models; United States; water resources; water supply ER - TY - JOUR T1 - Dating fluid flow in shear zones; Rb-Sr and U-Pb studies of syntectonic veins in the Neouvielle Massif, Pyrenees AN - 52492949; 1999-027325 JF - Geological Society Special Publications AU - Wayne, D M AU - McCaig, A M A2 - Parnell, John Y1 - 1998 PY - 1998 DA - 1998 SP - 129 EP - 135 PB - Geological Society of London, London VL - 144 SN - 0305-8719, 0305-8719 KW - U/Pb KW - igneous rocks KW - granites KW - Europe KW - fluid dynamics KW - Neouvielle Massif KW - French Pyrenees KW - Rb/Sr KW - France KW - Cenozoic KW - plutonic rocks KW - mineral composition KW - dates KW - wall rocks KW - granodiorites KW - inclusions KW - absolute age KW - faults KW - Pb/Pb KW - Sr/Sr KW - shear zones KW - middle Eocene KW - Western Europe KW - Eocene KW - Hautes-Pyrenees France KW - correlation KW - Paleogene KW - deformation KW - veins KW - Tertiary KW - fluid inclusions KW - Pyrenees KW - syntectonic processes KW - 03:Geochronology KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52492949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+Special+Publications&rft.atitle=Dating+fluid+flow+in+shear+zones%3B+Rb-Sr+and+U-Pb+studies+of+syntectonic+veins+in+the+Neouvielle+Massif%2C+Pyrenees&rft.au=Wayne%2C+D+M%3BMcCaig%2C+A+M&rft.aulast=Wayne&rft.aufirst=D&rft.date=1998-01-01&rft.volume=144&rft.issue=&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Geological+Society+Special+Publications&rft.issn=03058719&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geofluids II conference, Queen's University Geofluids Group international seminar on Dating of fluid flow N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. sect., 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Cenozoic; correlation; dates; deformation; Eocene; Europe; faults; fluid dynamics; fluid inclusions; France; French Pyrenees; granites; granodiorites; Hautes-Pyrenees France; igneous rocks; inclusions; middle Eocene; mineral composition; Neouvielle Massif; Paleogene; Pb/Pb; plutonic rocks; Pyrenees; Rb/Sr; shear zones; Sr/Sr; syntectonic processes; Tertiary; U/Pb; veins; wall rocks; Western Europe ER - TY - JOUR T1 - Modeling of actinide geochemistry for reactive transport and waste isolation AN - 52479466; 1999-039442 AB - Neptunium and plutonium are important actinides in the geochemical environment. Neptunium is a long-lived nuclide in nuclear waste repositories such as Yucca Mountain. Thermodynamic modeling of neptunium in a Yucca Mountain groundwater predicts neptunium solubility controlled by Np(V) oxide at oxidizing conditions and by amorphous Np(IV) hydroxide at reducing conditions. Neptunium dioxide is not expected to form in the groundwater. Results of precipitation/dissolution experiments suggest that log Ksp of Np(V) oxide is 5.2+ or -0.8, not the 9.5+ or -2.6 resident in geochemical codes. Plutonium is the relevant actinide in the nuclear weapons complex and generally in the environment due to fallout. The Rocky Flats Environmental Test Site an important test case of plutonium in the geochemical environment. The geohydrology of Rocky Flats is characterized by shallow, perched alluvial groundwater in hydraulic communication with surface water bodies. Seasonal variation of plutonium occurs in one surface water unit where plutonium concentrations are higher in the spring and summer and lower in the winter. Correlation of total suspended solids and plutonium suggests that colloidal plutonium may, in part, cause the observed fluctuations. Sulfur and manganese also exhibit trends that correlate with the plutonium pattern. Variation of these redox sensitive species suggests that geochemical processes in addition to colloid formation are contributing to the seasonal variation in soluble plutonium. Understanding the different geochemical behavior of neptunium and plutonium in these two distinct environments is important to understanding source terms, reactive transport, remediation, and final disposition of radioactive wastes. JF - Abstracts with Programs - Geological Society of America AU - Kaszuba, John P AU - Neu, Mary AU - Runde, Wolfgang H AU - Clark, D L AU - Efurd, D W AU - Janecky, David R AU - Tait, C Drew AU - Haire, R G AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 87 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - calcium KW - water quality KW - magnesium KW - neptunium KW - oxygen KW - plutonium KW - iron KW - radioactive waste KW - Pisces KW - conductivity KW - transport KW - aluminum KW - Little Deer Creek KW - discharge KW - species diversity KW - pH KW - alkaline earth metals KW - experimental studies KW - Chordata KW - pollutants KW - biochemistry KW - background level KW - alkali metals KW - pollution KW - sodium KW - southwestern Pennsylvania KW - precipitation KW - metals KW - sulfur KW - waste disposal KW - Vertebrata KW - Pennsylvania KW - actinides KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52479466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Modeling+of+actinide+geochemistry+for+reactive+transport+and+waste+isolation&rft.au=Kaszuba%2C+John+P%3BNeu%2C+Mary%3BRunde%2C+Wolfgang+H%3BClark%2C+D+L%3BEfurd%2C+D+W%3BJanecky%2C+David+R%3BTait%2C+C+Drew%3BHaire%2C+R+G%3BAnonymous&rft.aulast=Kaszuba&rft.aufirst=John&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1998 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; alkaline earth metals; aluminum; background level; biochemistry; calcium; Chordata; conductivity; discharge; experimental studies; field studies; iron; Little Deer Creek; magnesium; metals; neptunium; oxygen; Pennsylvania; pH; Pisces; plutonium; pollutants; pollution; precipitation; radioactive waste; sodium; southwestern Pennsylvania; species diversity; sulfur; transport; United States; Vertebrata; waste disposal; water quality ER - TY - JOUR T1 - Mixed-parity solutions in a mean-field dynamo model AN - 52476879; 1999-039845 AB - We consider the effect of including both dipole and quadrupole parities in the previous mean-field model of Hollerbach and Jones (1995), which considered dipole parity only. Allowing for both parities, we find that the onset of dynamo action occurs at alpha (sub 0) nearly equal 6, in the form of a purely quadrupolar dynamo wave. A symmetry-breaking bifurcation then occurs at alpha (sub 0) nearly equal 11, beyond which the solutions are of mixed parity. The quadrupolar component still oscillates about a zero time-average, but the dipolar component about a non-zero average. For even greater alpha (sub 0) we obtain an unconnected upper-branch solution. In sharp contrast to the HJ95 pure-parity upper branch, however, this mixed-parity upper branch is steady-state rather than periodic. Although it does not appear to be possible to connect these two upper branches by any simple sequence of bifurcations, we nevertheless suggest how aspects of the mixed-parity branch may help in understanding features of the previous pure-parity branch. JF - Studia Geophysica et Geodetica AU - Hollerbach, R AU - Glatzmaier, G A Y1 - 1998 PY - 1998 DA - 1998 SP - 239 EP - 246 PB - Ceskoslovenska Akademie Ved, Prague VL - 42 IS - 3 SN - 0039-3169, 0039-3169 KW - three-dimensional models KW - dynamos KW - Taylor state KW - simulation KW - magnetic field KW - Hollerbach and Jones model(1995) KW - buoyancy KW - outer core KW - geodynamics KW - dynamics KW - rotation KW - mean-field dynamos KW - Ekman states KW - core KW - symmetry KW - alpha-coefficient KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52476879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Studia+Geophysica+et+Geodetica&rft.atitle=Mixed-parity+solutions+in+a+mean-field+dynamo+model&rft.au=Hollerbach%2C+R%3BGlatzmaier%2C+G+A&rft.aulast=Hollerbach&rft.aufirst=R&rft.date=1998-01-01&rft.volume=42&rft.issue=3&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Studia+Geophysica+et+Geodetica&rft.issn=00393169&rft_id=info:doi/ L2 - http://www.springerlink.com/(gei43545lhkbqafqptkgoqfy)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:109194,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 11 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SGEGA8 N1 - SubjectsTermNotLitGenreText - alpha-coefficient; buoyancy; core; dynamics; dynamos; Ekman states; geodynamics; Hollerbach and Jones model(1995); magnetic field; mean-field dynamos; outer core; rotation; simulation; symmetry; Taylor state; three-dimensional models ER - TY - JOUR T1 - The mineralogic speciation of barium in Canon de Valle at LANL; sediments and plant material AN - 52472884; 1999-039451 AB - Ba is a contaminant at LANL because Ba-nitrate was a component of explosives used in early nuclear weapons. Ba-nitrate has reacted with the environment to produce less soluble minerals. Ba contamination in alluvium ranges to 40,000 ppm. Ba concentrations in surface waters range to 6 ppm. Precipitation of Ba minerals from contaminated waters reduces this concentration, but may introduce bioaccessible Ba compounds into the environment. Understanding mineralogic speciation of Ba in soils is important because: (1) implementing natural attenuation of Ba as a remedial alternative requires an understanding of the thermodynamics of phases that immobilize Ba; (2) Ba speciation determines bioaccessibility in humans and animals; and (3) Ba speciation influences Ba abundances in surface and groundwaters. Ba speciation in alluvial sediments and soils at LANL was determined using SEM and EMP. SEM counts of Ba minerals in 17 samples showed the principal Ba species were witherite and barite. Barite was found in alluvial sediments whereas witherite was present outside the alluvium. Witherite displays dissolution textures, and grain sizes range to 100's of microns. Barite grain size was 5 to 50 microns. Barite morphologies include: (1) thin veneers of secondary Ba-sulfate on organic matter and sediment; (2) discrete secondary Ba-sulfate mineral grains; and (3) primary vapor-phase Ba-sulfate displaying dissolution pits. Tree-rings from ponderosa pines with their root systems within the alluvium were analyzed by SEM and EMP: (1) to determine bioaccessibility of Ba compounds in the environment; (2) to track contaminant mobility; (3) to establish whether tree-ring chemistry reflects that of the environment at time of growth; and (4) to reveal timing of contamination. Secondary Ba-sulfate grains were in 24 of 32 tree ring samples. Other Ba minerals recognized in tree rings were witherite and Ba-silicate. The PHREEQC code was used to investigate the thermodynamic stability of secondary Ba minerals. Alluvial waters are oversaturated with barite, consistent with the abundance of Ba in alluvium. Witherite saturation occurs only at higher pH. Witherite is not stable in surface waters, consistent with observed dissolution textures. JF - Abstracts with Programs - Geological Society of America AU - McMillan, S C AU - Hickmott, D D AU - Newman, B D AU - Kelly, B L AU - Rodriguez, V J AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 255 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - bioavailability KW - New Mexico KW - Los Alamos County New Mexico KW - solution KW - mineral composition KW - barium KW - sediments KW - Canon de Valle KW - pH KW - soils KW - alkaline earth metals KW - Plantae KW - clastic sediments KW - textures KW - pollutants KW - grain size KW - pollution KW - Los Alamos National Laboratory KW - witherite KW - tree rings KW - saturation KW - metals KW - alluvium KW - carbonates KW - SEM data KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52472884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+mineralogic+speciation+of+barium+in+Canon+de+Valle+at+LANL%3B+sediments+and+plant+material&rft.au=McMillan%2C+S+C%3BHickmott%2C+D+D%3BNewman%2C+B+D%3BKelly%2C+B+L%3BRodriguez%2C+V+J%3BAnonymous&rft.aulast=McMillan&rft.aufirst=S&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1998 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; alluvium; barium; bioavailability; Canon de Valle; carbonates; chemical fractionation; clastic sediments; grain size; Los Alamos County New Mexico; Los Alamos National Laboratory; metals; mineral composition; New Mexico; pH; Plantae; pollutants; pollution; saturation; sediments; SEM data; soils; solution; textures; tree rings; United States; witherite ER - TY - JOUR T1 - Sr isotopic composition of carbonate in volcanic and alluvial Desert soils of New Mexico and California; implications for regional and local dust contribution AN - 52471872; 1999-039485 AB - Sr isotopic studies of desert soils have supported the hypothesis that dust is the primary source of calcium in pedogenic carbonate. Six soils of three distinct parent lithologies (basalt, limestone alluvium and granitic alluvium) previously well characterized as to their ages and soil stratigraphy have been selected for a study of carbonate Sr isotopic composition. In the context of this large body of descriptive and temporal data the Sr isotopic analyses reveal differences in accumulated dust composition, calcic horizon composition and possibly weathering response between the three lithologies. Acetic acid leachable Sr from the Av horizons and carbonate rinds forming at depth were measured for all soils. To the extent the Av horizon can be used as a proxy for dust composition these measurements track variations in local and regional dust sources. The 90 ky Afton flow in the Potrillo volcanic field (PVF), southern New Mexico provides an interesting comparison with other results (e.g. Stewart and Capo, 1998) from nearby Las Cruces. Av horizon (super 87) Sr/ (super 86) Sr (0.70784) is lower than reported dust values (0.7087-0.7093) for the area. The corresponding Ck horizon rind (super 87) Sr/ (super 86) Sr (0.70763) indicates contribution from the underlying basalt ( (super 87) Sr/ (super 86) Sr approximately 0.704) of less than 1%, despite micromorphologic observations of weathering in rind coated clasts. (super 87) Sr/ (super 86) Sr ratios from soil developing on the >300 ky e-flow in the Cima volcanic field (CVF), Mojave Desert, California provide comparative data with the PVF soil and with the Providence mountain alluvial fan soils 50 km to the SE. Mojave Av horizon (super 87) Sr/ (super 86) Sr ratios (0.70947-0.71066) are all higher than observed Av values in New Mexico and may reflect the more radiogenic regional terrane dust source. Both late Pleistocene and Holocene granitic alluvial soils yield higher Av horizon (super 87) Sr/ (super 86) Sr (0.71066 and 0.71078) than the limestone alluvial soils (0.70947-0.7099) of corresponding surface ages. Ck horizon rind (super 87) Sr/ (super 86) Sr ratios (0.70971-0.70980) for the CVF soil are slightly lower than the Av horizon (0.70995) showing the same minimal input from basalt weathering as observed in the PVF. Ck horizon rind (super 87) Sr/ (super 86) Sr ratios of the Providence alluvial soils have similar values to the corresponding Av horizon in the soils of granitic parent material (0.71065) and are higher than the corresponding Av horizon values in the soils of limestone parent material (0.70966-0.71020). Our results document regional differences between proxied dust (super 87) Sr/ (super 86) Sr ratios (Mojave vs. Southern New Mexico) and a variation between local values in the Mojave. These apparently correlate with parent material lithologies and suggest a very local influence on dust compositions in this region. JF - Abstracts with Programs - Geological Society of America AU - McLain, A A AU - McFadden, L D AU - Asmerom, Y AU - McDonald, E V AU - Poths, J AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 330 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - isotopes KW - New Mexico KW - Holocene KW - stable isotopes KW - variations KW - Cenozoic KW - California KW - Mojave Desert KW - sediments KW - horizons KW - zoning KW - soils KW - alkaline earth metals KW - pedogenesis KW - Quaternary KW - micromorphology KW - clastic sediments KW - isotope ratios KW - Desert soils KW - weathering KW - measurement KW - Sr-87/Sr-86 KW - provenance KW - metals KW - dust KW - parent materials KW - Pleistocene KW - strontium KW - Alluvial soils KW - Potrillo volcanic field KW - 02D:Isotope geochemistry KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52471872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Sr+isotopic+composition+of+carbonate+in+volcanic+and+alluvial+Desert+soils+of+New+Mexico+and+California%3B+implications+for+regional+and+local+dust+contribution&rft.au=McLain%2C+A+A%3BMcFadden%2C+L+D%3BAsmerom%2C+Y%3BMcDonald%2C+E+V%3BPoths%2C+J%3BAnonymous&rft.aulast=McLain&rft.aufirst=A&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=330&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1998 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Alluvial soils; California; Cenozoic; clastic sediments; Desert soils; dust; Holocene; horizons; isotope ratios; isotopes; measurement; metals; micromorphology; Mojave Desert; New Mexico; parent materials; pedogenesis; Pleistocene; Potrillo volcanic field; provenance; Quaternary; sediments; soils; Sr-87/Sr-86; stable isotopes; strontium; United States; variations; weathering; zoning ER - TY - JOUR T1 - Relative humidity response to barometric pressure changes in an underground heated drift at Yucca Mountain AN - 52469450; 1999-044635 AB - Electrical heaters were energized on December 3, 1997 to begin an underground Drift-Scale Test (DST) to measure the thermal, hydrological, mechanical, and chemical response of the host rock to the potential emplacement of heat-generating, high-level radioactive waste in a repository at Yucca Mountain, Nevada. After the first 40 days of heating, highly variable amounts of moisture were reported on the floor and crown of the observation drift (OD) near the bulkhead that separates it from the heated drift (HD). Within the HD, the relative humidity (RH), after steadily decreasing from 30% to 15% during the first 10 days of heating, began to fluctuate between 10% and 25%. The temperature (T) within the HD has risen monotonically since the heaters were energized. Pre-test model calculations predicted a monotonic decrease in RH accompanying a monotonic increase in T. Close examination of other data collected revealed that the RH fluctuations were strongly, but inversely, correlated with barometric pressure fluctuations, and that the amount of moisture in the OD increased with RH levels in the HD. During a falling barometer, hot moist air leaks around the bulkhead from the HD to the OD, where much of the moisture condenses at the cooler T in the OD. During a rising barometer, air flows from the OD to the HD. When this air is heated within the HD, its RH drops. The model used for pre-test calculations with the NUFT code was modified by imposing a variable pressure boundary condition (BC) in place of a constant gas pressure BC. Preliminary results with a sinusoidal pressure BC produced a fluctuating RH, in qualitative agreement with the field data. Although the measured RH has remained well below the critical threshold value of about 85% that accelerates moist air corrosion, the unexpected fluctuations caused some concern that thermal-hydrologic codes used by the Yucca Mountain Project might have failed to include potentially important processes. It is now clear that the models available produce results in good agreement with experiment when the appropriate BCs are used. This experience shows why field experiments are necessary for testing models, and why models are needed for designing and analyzing experiments. JF - Abstracts with Programs - Geological Society of America AU - Chesnut, Dwayne A AU - Peters, Mark T AU - Buscheck, Thomas A AU - Datta, Robin N AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 362 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - high-level waste KW - pressure KW - Nye County Nevada KW - boundary conditions KW - temperature KW - radioactive waste KW - models KW - barometric pressure KW - fluctuations KW - humidity KW - testing KW - waste disposal KW - Yucca Mountain KW - Nevada KW - design KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52469450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Relative+humidity+response+to+barometric+pressure+changes+in+an+underground+heated+drift+at+Yucca+Mountain&rft.au=Chesnut%2C+Dwayne+A%3BPeters%2C+Mark+T%3BBuscheck%2C+Thomas+A%3BDatta%2C+Robin+N%3BAnonymous&rft.aulast=Chesnut&rft.aufirst=Dwayne&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=362&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1998 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - barometric pressure; boundary conditions; design; fluctuations; high-level waste; humidity; models; Nevada; Nye County Nevada; pressure; radioactive waste; temperature; testing; United States; waste disposal; Yucca Mountain ER - TY - BOOK T1 - Campi Flegrei AN - 52450501; 1999-053363 JF - Volcanic hazards and risk in the Parthenopean megacity; guidebook AU - Civetta, Lucia AU - Augusti, V AU - Del Gaudio, C AU - de Vita, S AU - Di Vito, Mauro AU - Isaia, Roberto AU - Marotta, E AU - Orsi, Giovanni AU - Pappalardo, Lucia AU - Petrazzuoli, S AU - Piochi, M AU - Ricciardi, G AU - Ricco, C AU - Carandente, A AU - D'Antonio, Massimo AU - Di Cesare, T AU - Necco, A AU - Fisher, R V AU - Southon, J AU - Deino, A AU - Wohletz, K A2 - Orsi, Giovanni A2 - Di Vito, Mauro A2 - Isaia, Roberto Y1 - 1998 PY - 1998 DA - 1998 PB - Osservatorio Vesuviano, Gruppo Nazionale per La Vulcanologia, Naples KW - volcanic rocks KW - Phlegraean Fields KW - lava flows KW - geologic hazards KW - Vesuvius KW - chronostratigraphy KW - igneous rocks KW - Europe KW - deformation KW - Italy KW - Southern Europe KW - Campania Italy KW - calderas KW - pyroclastics KW - volcanic risk KW - volcanic features KW - magmas KW - eruptions KW - volcanoes KW - Monte Somma KW - chemical composition KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52450501?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Civetta%2C+Lucia%3BAugusti%2C+V%3BDel+Gaudio%2C+C%3Bde+Vita%2C+S%3BDi+Vito%2C+Mauro%3BIsaia%2C+Roberto%3BMarotta%2C+E%3BOrsi%2C+Giovanni%3BPappalardo%2C+Lucia%3BPetrazzuoli%2C+S%3BPiochi%2C+M%3BRicciardi%2C+G%3BRicco%2C+C%3BCarandente%2C+A%3BD%27Antonio%2C+Massimo%3BDi+Cesare%2C+T%3BNecco%2C+A%3BFisher%2C+R+V%3BSouthon%2C+J%3BDeino%2C+A%3BWohletz%2C+K&rft.aulast=Civetta&rft.aufirst=Lucia&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Campi+Flegrei&rft.title=Campi+Flegrei&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Formation of a metastable olivine wedge in a subducting slab AN - 52440277; 1999-062214 JF - Annales Geophysicae (1988) AU - Devaux, J P AU - Schubert, G AU - Anderson, C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 35 PB - European Geophysical Society, Kathlenburg-Lindau VL - 16, Suppl. 1 SN - 0992-7689, 0992-7689 KW - silicates KW - metastable phase KW - thermal conductivity KW - mantle KW - phase transitions KW - olivine group KW - thermal regime KW - finite element analysis KW - theoretical studies KW - rheology KW - heat flow KW - olivine KW - orthosilicates KW - kinetics KW - P-T conditions KW - two-phase models KW - viscoplastic materials KW - statistical analysis KW - subduction KW - nesosilicates KW - South America KW - plate tectonics KW - deep-focus earthquakes KW - slabs KW - accretionary wedges KW - earthquakes KW - 670-km discontinuity KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52440277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annales+Geophysicae+%281988%29&rft.atitle=Formation+of+a+metastable+olivine+wedge+in+a+subducting+slab&rft.au=Devaux%2C+J+P%3BSchubert%2C+G%3BAnderson%2C+C%3BAnonymous&rft.aulast=Devaux&rft.aufirst=J&rft.date=1998-01-01&rft.volume=16%2C+Suppl.+1&rft.issue=&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Annales+Geophysicae+%281988%29&rft.issn=09927689&rft_id=info:doi/ L2 - http://www.ann-geophys.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Conference title - 23rd general assembly of the European Geophysical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - 670-km discontinuity; accretionary wedges; deep-focus earthquakes; earthquakes; finite element analysis; heat flow; kinetics; mantle; metastable phase; nesosilicates; olivine; olivine group; orthosilicates; P-T conditions; phase transitions; plate tectonics; rheology; silicates; slabs; South America; statistical analysis; subduction; theoretical studies; thermal conductivity; thermal regime; two-phase models; viscoplastic materials ER - TY - JOUR T1 - Hydromorphic-soil origin of carbonate glaebules in Pliocene Paleosols of southeastern Arizona AN - 52437027; 1999-062077 JF - Quaternary International AU - Slate, Janet L A2 - Follmer, Leon R. A2 - Johnson, D. L. A2 - Catt, John A. Y1 - 1998 PY - 1998 DA - 1998 SP - 60 EP - 61 PB - Pergamon, Oxford VL - 51-52 SN - 1040-6182, 1040-6182 KW - United States KW - silicates KW - calcium KW - terrestrial environment KW - oxygen KW - Basin and Range Province KW - isotopes KW - semi-arid environment KW - unsaturated zone KW - stable isotopes KW - climate change KW - ground water KW - Cenozoic KW - size distribution KW - Hydromorphic soils KW - carbon KW - paleosols KW - calcium carbonate KW - soils KW - North America KW - glaebules KW - alkaline earth metals KW - pedogenesis KW - paleohydrology KW - arid environment KW - grain size KW - Saint David Formation KW - southeastern Arizona KW - properties KW - clay minerals KW - morphology KW - genesis KW - Tertiary KW - color KW - Neogene KW - metals KW - classification KW - Arizona KW - Pliocene KW - sheet silicates KW - San Pedro Valley KW - carbonates KW - 06A:Sedimentary petrology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52437027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+International&rft.atitle=Hydromorphic-soil+origin+of+carbonate+glaebules+in+Pliocene+Paleosols+of+southeastern+Arizona&rft.au=Slate%2C+Janet+L&rft.aulast=Slate&rft.aufirst=Janet&rft.date=1998-01-01&rft.volume=51-52&rft.issue=&rft.spage=60&rft.isbn=&rft.btitle=&rft.title=Quaternary+International&rft.issn=10406182&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/10406182 LA - English DB - GeoRef N1 - Conference title - Revisitation of concepts in paleopedology; Second international symposium on Paleopedology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 9 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; arid environment; Arizona; Basin and Range Province; calcium; calcium carbonate; carbon; carbonates; Cenozoic; classification; clay minerals; climate change; color; genesis; glaebules; grain size; ground water; Hydromorphic soils; isotopes; metals; morphology; Neogene; North America; oxygen; paleohydrology; paleosols; pedogenesis; Pliocene; properties; Saint David Formation; San Pedro Valley; semi-arid environment; sheet silicates; silicates; size distribution; soils; southeastern Arizona; stable isotopes; terrestrial environment; Tertiary; United States; unsaturated zone ER - TY - JOUR T1 - Isotopic composition of atmospheric lead in rain and Spanish moss AN - 52416341; 1999-072857 JF - Abstracts with Programs - Geological Society of America AU - Odom, A Leroy AU - Sachi-Kocher, Afi AU - Landing, William AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 81 EP - 82 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - isotopes KW - lead KW - Epiphyton KW - Spanish moss KW - atmospheric precipitation KW - algae KW - Florida KW - stable isotopes KW - radioactive isotopes KW - Pb-207/Pb-204 KW - Plantae KW - Florida Keys KW - pollutants KW - Pb-206/Pb-204 KW - isotope ratios KW - biochemistry KW - Tillandsia usenoidses KW - pollution KW - metals KW - Florida Panhandle KW - seasonal variations KW - microfossils KW - Atlantic Ocean KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52416341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Isotopic+composition+of+atmospheric+lead+in+rain+and+Spanish+moss&rft.au=Odom%2C+A+Leroy%3BSachi-Kocher%2C+Afi%3BLanding%2C+William%3BAnonymous&rft.aulast=Odom&rft.aufirst=A&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1998 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - algae; Atlantic Ocean; atmospheric precipitation; biochemistry; Epiphyton; Florida; Florida Keys; Florida Panhandle; isotope ratios; isotopes; lead; metals; microfossils; Pb-206/Pb-204; Pb-207/Pb-204; Plantae; pollutants; pollution; radioactive isotopes; seasonal variations; Spanish moss; stable isotopes; Tillandsia usenoidses; United States ER - TY - JOUR T1 - Insights in stone pavements from cosmogenic helium dates AN - 52387327; 2000-022578 JF - Abstracts with Programs - Geological Society of America AU - Poths, Jane AU - McFadden, L AU - McLain, A AU - Anderson, K AU - Wells, S G AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 299 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - eolian features KW - terrestrial environment KW - isotopes KW - He-3 KW - stable isotopes KW - Cenozoic KW - California KW - dates KW - noble gases KW - sediments KW - absolute age KW - helium KW - Cima volcanic field KW - San Bernardino County California KW - soils KW - processes KW - pedogenesis KW - Quaternary KW - clastic sediments KW - arid environment KW - desert pavement KW - clasts KW - Southern California KW - K/Ar KW - dust KW - Pleistocene KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52387327?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Insights+in+stone+pavements+from+cosmogenic+helium+dates&rft.au=Poths%2C+Jane%3BMcFadden%2C+L%3BMcLain%2C+A%3BAnderson%2C+K%3BWells%2C+S+G%3BAnonymous&rft.aulast=Poths&rft.aufirst=Jane&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1998 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absolute age; arid environment; California; Cenozoic; Cima volcanic field; clastic sediments; clasts; dates; desert pavement; dust; eolian features; He-3; helium; isotopes; K/Ar; noble gases; pedogenesis; Pleistocene; processes; Quaternary; San Bernardino County California; sediments; soils; Southern California; stable isotopes; terrestrial environment; United States ER - TY - JOUR T1 - Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada AN - 52373328; 2000-030630 AB - The map database is available on-line in ARC/INFO Export format. Bundled with this database are a PDF file for easily viewing and printing the map, a separate file for plotting the map, and a text file describing the map units and compilation methods. The database and associated files can be downloaded off the Internet. JF - Open-File Report - U. S. Geological Survey AU - Minor, Scott A AU - Orkild, Paul P AU - Sargent, Ken A AU - Warren, Richard G AU - Sawyer, David A AU - Workman, Jeremiah B Y1 - 1998 PY - 1998 DA - 1998 SP - 22 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - digital data KW - tectonic elements KW - petrology KW - volcanic rocks KW - cartography KW - igneous rocks KW - Thirsty Canyon Quadrangle KW - Nye County Nevada KW - areal geology KW - USGS KW - geochemistry KW - phenocrysts KW - Nevada KW - 14:Geologic maps UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52373328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Digital+geologic+map+of+the+Thirsty+Canyon+NW+quadrangle%2C+Nye+County%2C+Nevada&rft.au=Minor%2C+Scott+A%3BOrkild%2C+Paul+P%3BSargent%2C+Ken+A%3BWarren%2C+Richard+G%3BSawyer%2C+David+A%3BWorkman%2C+Jeremiah+B&rft.aulast=Minor&rft.aufirst=Scott&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-98-0623 https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 24 N1 - PubXState - VA N1 - Document feature - 3 tables N1 - SuppNotes - Accessed on April 4, 2000 N1 - Last updated - 2016-09-16 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - areal geology; cartography; digital data; geochemistry; igneous rocks; Nevada; Nye County Nevada; petrology; phenocrysts; tectonic elements; Thirsty Canyon Quadrangle; United States; USGS; volcanic rocks ER - TY - JOUR T1 - Factors affecting the interpretation of solar-proton-produced nuclides and some chlorine-36 results AN - 52372378; 2000-030245 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Reedy, Robert C AU - Nishiizumi, K AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - chlorine KW - Moon KW - isotopes KW - Cl-36 KW - halogens KW - cosmogenic elements KW - cosmochemistry KW - protons KW - lunar samples KW - radioactive isotopes KW - cosmic rays KW - geochemistry KW - solar activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52372378?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Factors+affecting+the+interpretation+of+solar-proton-produced+nuclides+and+some+chlorine-36+results&rft.au=Reedy%2C+Robert+C%3BNishiizumi%2C+K%3BAnonymous&rft.aulast=Reedy&rft.aufirst=Robert&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 17 N1 - PubXState - TX N1 - SuppNotes - Abstract number 1698 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chlorine; Cl-36; cosmic rays; cosmochemistry; cosmogenic elements; geochemistry; halogens; isotopes; lunar samples; Moon; protons; radioactive isotopes; solar activity ER - TY - JOUR T1 - Cosmogenic nuclides produced by solar alpha particles AN - 52370673; 2000-030244 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Reedy, Robert C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - calcium KW - particle tracks KW - alpha rays KW - isotopes KW - Ca-41 KW - cosmogenic elements KW - protons KW - manganese KW - Mn-53 KW - Al-26 KW - theoretical studies KW - radioactive isotopes KW - aluminum KW - Na-22 KW - cosmic rays KW - geochemistry KW - solar activity KW - alkaline earth metals KW - Be-10 KW - Moon KW - alkali metals KW - cosmochemistry KW - sodium KW - lunar samples KW - neutrons KW - metals KW - beryllium KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52370673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Cosmogenic+nuclides+produced+by+solar+alpha+particles&rft.au=Reedy%2C+Robert+C%3BAnonymous&rft.aulast=Reedy&rft.aufirst=Robert&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - 1 table N1 - SuppNotes - Abstract number 1701 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Al-26; alkali metals; alkaline earth metals; alpha rays; aluminum; Be-10; beryllium; Ca-41; calcium; cosmic rays; cosmochemistry; cosmogenic elements; geochemistry; isotopes; lunar samples; manganese; metals; Mn-53; Moon; Na-22; neutrons; particle tracks; protons; radioactive isotopes; sodium; solar activity; theoretical studies ER - TY - JOUR T1 - Elemental and isotopic planetary surface analysis at stand-off distances using laser-induced breakdown spectroscopy and laser-induced plasma ion mass spectrometry AN - 52350659; 2000-044246 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wiens, R C AU - Cremers, D A AU - Blacic, J D AU - Ritzau, S M AU - Funsten, H O AU - Nordholt, J E AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - chemical elements KW - chemical analysis KW - laser-induced breakdown spectroscopy KW - laser methods KW - isotopes KW - detection limit KW - mass spectroscopy KW - LIBS method KW - planetology KW - laser-induced plasma ion mass spectroscopy KW - spectroscopy KW - geochemistry KW - instruments KW - remote sensing KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52350659?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Elemental+and+isotopic+planetary+surface+analysis+at+stand-off+distances+using+laser-induced+breakdown+spectroscopy+and+laser-induced+plasma+ion+mass+spectrometry&rft.au=Wiens%2C+R+C%3BCremers%2C+D+A%3BBlacic%2C+J+D%3BRitzau%2C+S+M%3BFunsten%2C+H+O%3BNordholt%2C+J+E%3BAnonymous&rft.aulast=Wiens&rft.aufirst=R&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Abstract number 1633 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical analysis; chemical elements; detection limit; geochemistry; instruments; isotopes; laser methods; laser-induced breakdown spectroscopy; laser-induced plasma ion mass spectroscopy; LIBS method; mass spectroscopy; planetology; remote sensing; spectroscopy ER - TY - JOUR T1 - A LiF silicon sandwich counter to measure water content of planetary surfaces AN - 52347012; 2000-044053 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Drake, D M AU - Clark, Benton C AU - Jakosky, Bruce M AU - Reedy, Robert AU - Squyres, Steven W AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - water KW - chemical analysis KW - neutron probe KW - hydrogen KW - lithium fluoride KW - planetology KW - spectroscopy KW - silicon KW - geochemistry KW - instruments KW - measurement KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52347012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+LiF+silicon+sandwich+counter+to+measure+water+content+of+planetary+surfaces&rft.au=Drake%2C+D+M%3BClark%2C+Benton+C%3BJakosky%2C+Bruce+M%3BReedy%2C+Robert%3BSquyres%2C+Steven+W%3BAnonymous&rft.aulast=Drake&rft.aufirst=D&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Abstract number 1482 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical analysis; geochemistry; hydrogen; instruments; lithium fluoride; measurement; neutron probe; planetology; silicon; spectroscopy; water ER - TY - JOUR T1 - The Mjolnir impact; environmental consequences AN - 52345356; 2000-044057 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Dypvik, H AU - Attrep, M, Jr AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - paleocurrents KW - impact features KW - Upper Jurassic KW - Jurassic KW - paleo-oceanography KW - impacts KW - ejecta KW - Mesozoic KW - environmental effects KW - cores KW - paleoenvironment KW - craters KW - Barents Sea KW - marine environment KW - bottom features KW - submarine environment KW - Arctic Ocean KW - Volgian KW - ocean floors KW - Mjolnir Crater KW - geochemistry KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52345356?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Mjolnir+impact%3B+environmental+consequences&rft.au=Dypvik%2C+H%3BAttrep%2C+M%2C+Jr%3BAnonymous&rft.aulast=Dypvik&rft.aufirst=H&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - SuppNotes - Abstract number 1002 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arctic Ocean; Barents Sea; bottom features; cores; craters; ejecta; environmental effects; geochemistry; impact features; impacts; Jurassic; marine environment; Mesozoic; Mjolnir Crater; ocean floors; paleo-oceanography; paleocurrents; paleoenvironment; submarine environment; Upper Jurassic; Volgian ER - TY - JOUR T1 - High efficiency CdZnTe gamma-ray detectors for planetary missions AN - 52338096; 2000-050185 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Moss, C E AU - Prettyman, T H AU - Reedy, R C AU - Valentine, J D AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - zinc KW - chemical analysis KW - sampling KW - tellurium KW - metals KW - cadmium KW - planetology KW - gamma-ray spectroscopy KW - spectroscopy KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52338096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=High+efficiency+CdZnTe+gamma-ray+detectors+for+planetary+missions&rft.au=Moss%2C+C+E%3BPrettyman%2C+T+H%3BReedy%2C+R+C%3BValentine%2C+J+D%3BAnonymous&rft.aulast=Moss&rft.aufirst=C&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Abstract number 1519 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cadmium; chemical analysis; gamma-ray spectroscopy; instruments; metals; planetology; sampling; spectroscopy; tellurium; zinc ER - TY - JOUR T1 - Water vapor abundance and temperature from the Mariner 6 and 7 infrared spectra AN - 52335565; 2000-050137 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McAfee, John M AU - Winer, A M AU - Herr, K C AU - Pimentel, G C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - surface properties KW - experimental studies KW - atmosphere KW - water vapor KW - Mars KW - temperature KW - observations KW - infrared spectra KW - terrestrial planets KW - planets KW - laboratory studies KW - Mariner Program KW - spectra KW - Mariner 7 KW - Mariner 6 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52335565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Water+vapor+abundance+and+temperature+from+the+Mariner+6+and+7+infrared+spectra&rft.au=McAfee%2C+John+M%3BWiner%2C+A+M%3BHerr%2C+K+C%3BPimentel%2C+G+C%3BAnonymous&rft.aulast=McAfee&rft.aufirst=John&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Abstract number 1315 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; experimental studies; infrared spectra; laboratory studies; Mariner 6; Mariner 7; Mariner Program; Mars; observations; planets; spectra; surface properties; temperature; terrestrial planets; water vapor ER - TY - BOOK T1 - The interplay of mechanical and thermo-fluid dynamical systems during unrest episodes in calderas; the Campi Flegrei caldera (Italy) case AN - 52334203; 2000-055522 JF - International meeting on Cities on volcanoes AU - Orsi, G AU - Petrazzuoli, S M AU - Wohletz, K Y1 - 1998 PY - 1998 DA - 1998 SP - 100 PB - Officine grafiche napoletane Francesco Giannini & Figli s.p.a., Naples KW - Phlegraean Fields KW - geologic hazards KW - Vesuvius KW - Europe KW - fluid dynamics KW - Italy KW - Southern Europe KW - Campania Italy KW - calderas KW - volcanic features KW - volcanism KW - mechanics KW - volcanoes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52334203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Orsi%2C+G%3BPetrazzuoli%2C+S+M%3BWohletz%2C+K&rft.aulast=Orsi&rft.aufirst=G&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=The+interplay+of+mechanical+and+thermo-fluid+dynamical+systems+during+unrest+episodes+in+calderas%3B+the+Campi+Flegrei+caldera+%28Italy%29+case&rft.title=The+interplay+of+mechanical+and+thermo-fluid+dynamical+systems+during+unrest+episodes+in+calderas%3B+the+Campi+Flegrei+caldera+%28Italy%29+case&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International meeting on Cities on volcanoes N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Infrared remote sensing of gas composition variations at Popocatepetl AN - 52330514; 2000-055502 JF - International meeting on Cities on volcanoes AU - Love, S P AU - Goff, F AU - Counce, D AU - Siebe, C Y1 - 1998 PY - 1998 DA - 1998 SP - 80 PB - Officine grafiche napoletane Francesco Giannini & Figli s.p.a., Naples KW - plumes KW - geophysical methods KW - prediction KW - Popocatepetl KW - volcanology KW - gases KW - infrared spectroscopy KW - Mexico KW - infrared methods KW - eruptions KW - spectroscopy KW - geochemistry KW - remote sensing KW - Fourier transform infrared spectroscopy KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52330514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Love%2C+S+P%3BGoff%2C+F%3BCounce%2C+D%3BSiebe%2C+C&rft.aulast=Love&rft.aufirst=S&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Infrared+remote+sensing+of+gas+composition+variations+at+Popocatepetl&rft.title=Infrared+remote+sensing+of+gas+composition+variations+at+Popocatepetl&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International meeting on Cities on volcanoes N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Damage to structures by explosive eruptions inferred from nuclear weapons tests AN - 52330495; 2000-055556 JF - International meeting on Cities on volcanoes AU - Valentine, G A Y1 - 1998 PY - 1998 DA - 1998 SP - 135 PB - Officine grafiche napoletane Francesco Giannini & Figli s.p.a., Naples KW - Martinique KW - geologic hazards KW - explosions KW - data processing KW - damage KW - West Indies KW - Caribbean region KW - explosive eruptions KW - structures KW - Antilles KW - Mount Pelee KW - geographic information systems KW - pyroclastic flows KW - volcanism KW - eruptions KW - Lesser Antilles KW - data bases KW - testing KW - information systems KW - nuclear explosions KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52330495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Valentine%2C+G+A&rft.aulast=Valentine&rft.aufirst=G&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Damage+to+structures+by+explosive+eruptions+inferred+from+nuclear+weapons+tests&rft.title=Damage+to+structures+by+explosive+eruptions+inferred+from+nuclear+weapons+tests&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International meeting on Cities on volcanoes N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Pervasive nonlinear sediment response during the 1994 Northridge earthquake AN - 52284967; 2000-079942 AB - We address the long-standing question regarding nonlinear sediment response at sites in the Los Angeles region using the Northridge earthquake and it aftershocks. Comparing the weak-and strong-motion response at 15 sediment sites, we find that amplification factors were significantly less for the main shock. The difference is largest between 2 and 4 Hz (a factor of two), and is significant at the 99-percent confidence level between 0.8 and 5.5 Hz. The inference of nonlinearity is robust with respect to the removal of possibly anomalous sediment sites, how the reference-site motion is defined, and with respect to corrections for finite-source effects. Nonlinearity is also suggested by the fact that sediment sites containing a clear fundamental resonance in the weak motion exhibit an absence of the peak in the strong motion. It remains to define the physics of this nonlinear response, and to test methodologies presently applied in engineering practice. JF - Second international symposium on the Effects of surface geology on seismic motion AU - Field, E H AU - Zeng, Y AU - Johnson, P A AU - Beresnev, I A A2 - Irikura, Kojiro A2 - Kudo, Kazuyoshi A2 - Okada, Hiroshi A2 - Sasatani, Tsutomu Y1 - 1998 PY - 1998 DA - 1998 PB - A. A. Balkema, Rotterdam KW - United States KW - soil mechanics KW - Los Angeles County California KW - weak motion KW - seismic response KW - wave amplification KW - California KW - Los Angeles California KW - aftershocks KW - strong motion KW - Southern California KW - nonlinearity KW - sediments KW - ground motion KW - Northridge earthquake 1994 KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52284967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Field%2C+E+H%3BZeng%2C+Y%3BJohnson%2C+P+A%3BBeresnev%2C+I+A&rft.aulast=Field&rft.aufirst=E&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Pervasive+nonlinear+sediment+response+during+the+1994+Northridge+earthquake&rft.title=Pervasive+nonlinear+sediment+response+during+the+1994+Northridge+earthquake&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second international symposium on the Effects of surface geology on seismic motion N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Tsunami from asteroid and comet impacts; the vulnerability of Europe AN - 52281865; 2001-003948 JF - Annales Geophysicae (1988) AU - Hills, J G AU - Goda, M P AU - Mader, C L AU - Warren, M S AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 1 PB - European Geophysical Society, Kathlenburg-Lindau VL - 16, Suppl. 4 SN - 0992-7689, 0992-7689 KW - tsunamis KW - comets KW - geologic hazards KW - asteroids KW - ocean waves KW - Europe KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52281865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annales+Geophysicae+%281988%29&rft.atitle=Tsunami+from+asteroid+and+comet+impacts%3B+the+vulnerability+of+Europe&rft.au=Hills%2C+J+G%3BGoda%2C+M+P%3BMader%2C+C+L%3BWarren%2C+M+S%3BAnonymous&rft.aulast=Hills&rft.aufirst=J&rft.date=1998-01-01&rft.volume=16%2C+Suppl.+4&rft.issue=&rft.spage=C1164&rft.isbn=&rft.btitle=&rft.title=Annales+Geophysicae+%281988%29&rft.issn=09927689&rft_id=info:doi/ L2 - http://www.ann-geophys.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Conference title - 23rd general assembly of the European Geophysical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #52901 N1 - SubjectsTermNotLitGenreText - asteroids; comets; Europe; geologic hazards; ocean waves; tsunamis ER - TY - JOUR T1 - Effects of toroidal and rheological heterogeneities on mixing in the mantle AN - 52280017; 2001-003932 JF - Annales Geophysicae (1988) AU - O'Connell, R J AU - Gable, Carl W AU - Manga, Michael AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 1 PB - European Geophysical Society, Kathlenburg-Lindau VL - 16, Suppl. 4 SN - 0992-7689, 0992-7689 KW - currents KW - plate tectonics KW - rheology KW - mixing KW - mantle KW - effects KW - convection currents KW - heterogeneity KW - toroidal mode KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52280017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annales+Geophysicae+%281988%29&rft.atitle=Effects+of+toroidal+and+rheological+heterogeneities+on+mixing+in+the+mantle&rft.au=O%27Connell%2C+R+J%3BGable%2C+Carl+W%3BManga%2C+Michael%3BAnonymous&rft.aulast=O%27Connell&rft.aufirst=R&rft.date=1998-01-01&rft.volume=16%2C+Suppl.+4&rft.issue=&rft.spage=C1122&rft.isbn=&rft.btitle=&rft.title=Annales+Geophysicae+%281988%29&rft.issn=09927689&rft_id=info:doi/ L2 - http://www.ann-geophys.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Conference title - 23rd general assembly of the European Geophysical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #52901 N1 - SubjectsTermNotLitGenreText - convection currents; currents; effects; heterogeneity; mantle; mixing; plate tectonics; rheology; toroidal mode ER - TY - JOUR T1 - Mapping the elemental composition of the Moon; first results from the lunar prospector gamma-ray spectrometer AN - 52249060; 2001-027412 JF - Eos, Transactions, American Geophysical Union AU - Lawrence, D J AU - Feldman, W C AU - Binder, A B AU - Maurice, S AU - Barraclough, B L AU - Elphic, R C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 1 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - polar regions KW - Moon KW - cartography KW - Lunar Prospector Program KW - gamma-ray spectra KW - spectra KW - chemical composition KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52249060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Mapping+the+elemental+composition+of+the+Moon%3B+first+results+from+the+lunar+prospector+gamma-ray+spectrometer&rft.au=Lawrence%2C+D+J%3BFeldman%2C+W+C%3BBinder%2C+A+B%3BMaurice%2C+S%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=D&rft.date=1998-01-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=S189&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - cartography; chemical composition; gamma-ray spectra; instruments; Lunar Prospector Program; Moon; polar regions; spectra ER - TY - JOUR T1 - First neutron maps of Fe and Ti on the Moon; Lunar Prospector results AN - 52248644; 2001-027437 JF - Eos, Transactions, American Geophysical Union AU - Feldman, W C AU - Binder, A B AU - Maurice, S AU - Lawrence, D J AU - Barraclough, B L AU - Elphic, R C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - S194 EP - S195 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - neutron spectra KW - Moon KW - isotopes KW - Lunar Prospector Program KW - atmosphere KW - He-3 KW - stable isotopes KW - iron KW - topography KW - neutrons KW - titanium KW - noble gases KW - metals KW - epithermal neutrons KW - gamma-ray spectra KW - helium KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52248644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=First+neutron+maps+of+Fe+and+Ti+on+the+Moon%3B+Lunar+Prospector+results&rft.au=Feldman%2C+W+C%3BBinder%2C+A+B%3BMaurice%2C+S%3BLawrence%2C+D+J%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Feldman&rft.aufirst=W&rft.date=1998-01-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=S194&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; epithermal neutrons; gamma-ray spectra; He-3; helium; iron; isotopes; Lunar Prospector Program; metals; Moon; neutron spectra; neutrons; noble gases; spectra; stable isotopes; titanium; topography ER - TY - JOUR T1 - Flux of thermal neutrons from the Moon and surface temperature; Lunar Prospector results AN - 52248315; 2001-027481 JF - Eos, Transactions, American Geophysical Union AU - Maurice, S AU - Feldman, W C AU - Binder, A B AU - Lawrence, D J AU - Barraclough, B L AU - Elphic, R C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 1 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - low-energy neutrons KW - thermal neutron flux KW - Moon KW - latitudinal temperature gradient KW - Lunar Prospector Program KW - surface temperature KW - temperature KW - polar orbit KW - neutrons KW - neutron probe data KW - neutron spectrometer KW - cosmic rays KW - chemical composition KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52248315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Flux+of+thermal+neutrons+from+the+Moon+and+surface+temperature%3B+Lunar+Prospector+results&rft.au=Maurice%2C+S%3BFeldman%2C+W+C%3BBinder%2C+A+B%3BLawrence%2C+D+J%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Maurice&rft.aufirst=S&rft.date=1998-01-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=S190&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chemical composition; cosmic rays; latitudinal temperature gradient; low-energy neutrons; Lunar Prospector Program; Moon; neutron probe data; neutron spectrometer; neutrons; polar orbit; regolith; surface temperature; temperature; thermal neutron flux ER - TY - JOUR T1 - Lunar Prospector neutron measurements of lunar Fe and Ti abundance; comparison with spectroscopic determinations AN - 52248095; 2001-027415 JF - Eos, Transactions, American Geophysical Union AU - Munoz, E Santiago AU - Elphic, R C AU - Maurice, S AU - Lawrence, D J AU - Feldman, W C AU - Barraclough, B L AU - Binder, A B AU - Lucey, P G AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 1 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - concentration KW - lunar samples KW - neutron spectra KW - titanium KW - metals KW - Lunar Prospector Program KW - gamma-ray spectra KW - spectra KW - iron KW - measurement KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52248095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Lunar+Prospector+neutron+measurements+of+lunar+Fe+and+Ti+abundance%3B+comparison+with+spectroscopic+determinations&rft.au=Munoz%2C+E+Santiago%3BElphic%2C+R+C%3BMaurice%2C+S%3BLawrence%2C+D+J%3BFeldman%2C+W+C%3BBarraclough%2C+B+L%3BBinder%2C+A+B%3BLucey%2C+P+G%3BAnonymous&rft.aulast=Munoz&rft.aufirst=E&rft.date=1998-01-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=S190&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - concentration; gamma-ray spectra; iron; Lunar Prospector Program; lunar samples; measurement; metals; neutron spectra; spectra; titanium ER - TY - JOUR T1 - Survey of fast neutron spectra from the Moon; Lunar Prospector results AN - 52248054; 2001-027438 JF - Eos, Transactions, American Geophysical Union AU - Barraclough, B L AU - Feldman, W C AU - Binder, A B AU - Maurice, S AU - Lawrence, D J AU - Elphic, R C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 1 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - anticoincidence shield KW - neutron spectra KW - Moon KW - time factor KW - pulse-height spectra KW - fast neutron spectra KW - Lunar Prospector Program KW - gamma-ray spectra KW - spectra KW - B-10 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52248054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Survey+of+fast+neutron+spectra+from+the+Moon%3B+Lunar+Prospector+results&rft.au=Barraclough%2C+B+L%3BFeldman%2C+W+C%3BBinder%2C+A+B%3BMaurice%2C+S%3BLawrence%2C+D+J%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Barraclough&rft.aufirst=B&rft.date=1998-01-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=S195&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anticoincidence shield; B-10; fast neutron spectra; gamma-ray spectra; Lunar Prospector Program; Moon; neutron spectra; pulse-height spectra; spectra; time factor ER - TY - JOUR T1 - First positive identification of water ice at the Lunar poles AN - 52246691; 2001-027414 JF - Eos, Transactions, American Geophysical Union AU - Feldman, W C AU - Binder, A B AU - Maurice, S AU - Lawrence, D J AU - Barraclough, B L AU - Elphic, R C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 1 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - water KW - polar regions KW - neutrons KW - Moon KW - ice KW - hydrogen KW - epithermal neutrons KW - Lunar Prospector Program KW - gamma-ray spectra KW - spectra KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52246691?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=First+positive+identification+of+water+ice+at+the+Lunar+poles&rft.au=Feldman%2C+W+C%3BBinder%2C+A+B%3BMaurice%2C+S%3BLawrence%2C+D+J%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Feldman&rft.aufirst=W&rft.date=1998-01-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=S190&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - epithermal neutrons; gamma-ray spectra; hydrogen; ice; Lunar Prospector Program; Moon; neutrons; polar regions; regolith; spectra; water ER - TY - JOUR T1 - Providing valid long-term projections of geologic systems for policy decisions; can we succeed? Should we try? AN - 51979321; 2003-042464 AB - Many environmental problems require modeling of long-term interactions of man-made and geologic systems. By using the term "model," we acknowledge that we will never know whether our descriptions of geologic features, events, and processes are unique and represent absolute reality. "Validation" of a long-term predictive model means that, on the basis of tests of the assumptions, inputs, outputs, and sensitivities, the model adequately reflects the recognized behavior of the portion of the system it intends to represent. Adequacy is driven by the needs of the application for which the model is developed. Most environmental applications are overprinted with political, scientific, and social requirements that add subjective influences to the definitions and interpretations of measures of adequacy. Therefore no single measure can be developed for the adequacy of a model. The public, on the other hand, may expect "validation" to describe an unobtainable absolute demonstration of "truth." Scientists assessing long-term risk use various mechanisms to establish the adequacy of their models such as: (1) expert judgment to assign appropriate ranges of parameters where data are sparse, controversial, or unobtainable; (2) conservatism in assigning parameter values and process descriptions, including ignoring some potentially mitigating processes; and (3) stochastic simulation to assess the effect of uncertainty in descriptions and the sensitivity of performance predictions to uncertainty, and to examine alternative scenarios and process models. Other measures are under-taken to demonstrate that the effort to ensure validity has been comprehensive, including: (1) documentation of the structure of models, including justification for assumptions and simplifications, as well as the examination of alternative conceptualizations for the system; and (2) review by the scientific community and those who have a stake in the decisions that these models support. Legal precedent recognizes that decisions with large consequences often demand judgments of the validity of conflicting descriptions of reality. The stochastic nature of natural phenomena and the value of models as guides to judgment (not final answers) are both acknowledged. The problem of compounding conservatisms, which leads to an inherently unreal and thus invalid, model, may also be understood. The scientific community can usefully project the range of future behavior of systems and must do so if well-reasoned choices are to be made about how humans should affect those systems. Unfortunately, the consequences (costs and risks) of abandoning or overburdening efforts to make long-term projections are rarely examined as critically as are the efforts to project interactions of man-made systems with the geologic environment. JF - Reviews in Engineering Geology AU - Boak, Jeremy M AU - Dockery, Holly A Y1 - 1998 PY - 1998 DA - 1998 SP - 177 EP - 184 PB - Geological Society of America (GSA), Boulder, CO VL - 12 SN - 0080-2018, 0080-2018 KW - models KW - definition KW - stochastic processes KW - human activity KW - prediction KW - policy KW - environmental analysis KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51979321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Engineering+Geology&rft.atitle=Providing+valid+long-term+projections+of+geologic+systems+for+policy+decisions%3B+can+we+succeed%3F+Should+we+try%3F&rft.au=Boak%2C+Jeremy+M%3BDockery%2C+Holly+A&rft.aulast=Boak&rft.aufirst=Jeremy&rft.date=1998-01-01&rft.volume=12&rft.issue=&rft.spage=177&rft.isbn=0813741122&rft.btitle=&rft.title=Reviews+in+Engineering+Geology&rft.issn=00802018&rft_id=info:doi/10.1130%2FREG12-p177 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - Number of references - 27 N1 - PubXState - CO N1 - Last updated - 2014-06-13 N1 - CODEN - GAEGA4 N1 - SubjectsTermNotLitGenreText - definition; environmental analysis; human activity; models; policy; prediction; stochastic processes DO - http://dx.doi.org/10.1130/REG12-p177 ER - TY - JOUR T1 - Hydrogen and electrical conductivity of mantle olivine AN - 51933872; 2003-073590 JF - Terra Abstracts AU - Shankland, T J AU - Duba, A G AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 58 PB - Blackwell Scientific Publications, Oxford VL - 10, Suppl. 1 SN - 0954-4887, 0954-4887 KW - water KW - silicates KW - upper mantle KW - electrical conductivity KW - lattice KW - buffers KW - matrix KW - partial melting KW - mantle KW - atmosphere KW - olivine group KW - San Carlos Olivine KW - nesosilicates KW - conductivity KW - hydrogen KW - carbon KW - olivine KW - orthosilicates KW - diffusivity KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51933872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Terra+Abstracts&rft.atitle=Hydrogen+and+electrical+conductivity+of+mantle+olivine&rft.au=Shankland%2C+T+J%3BDuba%2C+A+G%3BAnonymous&rft.aulast=Shankland&rft.aufirst=T&rft.date=1998-01-01&rft.volume=10%2C+Suppl.+1&rft.issue=&rft.spage=58&rft.isbn=&rft.btitle=&rft.title=Terra+Abstracts&rft.issn=09544887&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh international symposium on Experimental mineralogy, petrology and geochemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; buffers; carbon; conductivity; diffusivity; electrical conductivity; hydrogen; lattice; mantle; matrix; nesosilicates; olivine; olivine group; orthosilicates; partial melting; San Carlos Olivine; silicates; upper mantle; water ER - TY - JOUR T1 - Probabilistic safety assessment for high-level waste tanks at Hanford AN - 51844369; 2004-040706 JF - NATO Science Series. Partnership Sub-series 1, Disarmament Technologies AU - Sullivan, L H AU - MacFarlane, D R AU - Stack, D W A2 - Stenhouse, M. J. A2 - Kirko, V. I. Y1 - 1998 PY - 1998 DA - 1998 SP - 231 EP - 262 PB - Kluwer Academic Publishers, Dordrecht VL - 18 SN - 1389-1820, 1389-1820 KW - United States KW - hazardous waste KW - high-level waste KW - Washington KW - geologic hazards KW - underground storage tanks KW - statistical analysis KW - waste disposal sites KW - Hanford Site KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - environmental effects KW - radioactive waste KW - safety KW - seismic risk KW - risk assessment KW - probability KW - waste disposal KW - public health KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51844369?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NATO+Science+Series.+Partnership+Sub-series+1%2C+Disarmament+Technologies&rft.atitle=Probabilistic+safety+assessment+for+high-level+waste+tanks+at+Hanford&rft.au=Sullivan%2C+L+H%3BMacFarlane%2C+D+R%3BStack%2C+D+W&rft.aulast=Sullivan&rft.aufirst=L&rft.date=1998-01-01&rft.volume=18&rft.issue=&rft.spage=231&rft.isbn=0792351126&rft.btitle=&rft.title=NATO+Science+Series.+Partnership+Sub-series+1%2C+Disarmament+Technologies&rft.issn=13891820&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 4 N1 - Document feature - illus. incl. 9 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - environmental effects; geologic hazards; Hanford Site; hazardous waste; high-level waste; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; probability; public health; radioactive waste; risk assessment; safety; seismic risk; statistical analysis; underground storage tanks; United States; Washington; waste disposal; waste disposal sites ER - TY - JOUR T1 - Microseismic mapping of a Cotton Valley hydraulic fracture using decimated downhole arrays AN - 51533879; 2006-076982 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Rutledge, J T AU - Phillips, W S AU - House, L S AU - Zinno, R J AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 EP - unpaginated PB - Society of Exploration Geophysicists, Tulsa, OK VL - 68 SN - 1052-3812, 1052-3812 KW - United States KW - P-waves KW - geophones KW - petroleum KW - elastic waves KW - oil and gas fields KW - reservoir rocks KW - phase velocity KW - seismicity KW - East Texas KW - microseisms KW - focus KW - Cotton Valley Field KW - arrival time KW - hydraulic fracturing KW - body waves KW - Upper Jurassic KW - Jurassic KW - geophysical methods KW - Texas KW - Mesozoic KW - seismic methods KW - Cotton Valley Group KW - reservoir properties KW - seismic waves KW - microearthquakes KW - earthquakes KW - S-waves KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51533879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Microseismic+mapping+of+a+Cotton+Valley+hydraulic+fracture+using+decimated+downhole+arrays&rft.au=Rutledge%2C+J+T%3BPhillips%2C+W+S%3BHouse%2C+L+S%3BZinno%2C+R+J%3BAnonymous&rft.aulast=Rutledge&rft.aufirst=J&rft.date=1998-01-01&rft.volume=68&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, sixty-eighth annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 6 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arrival time; body waves; Cotton Valley Field; Cotton Valley Group; earthquakes; East Texas; elastic waves; focus; geophones; geophysical methods; hydraulic fracturing; Jurassic; Mesozoic; microearthquakes; microseisms; oil and gas fields; P-waves; petroleum; phase velocity; reservoir properties; reservoir rocks; S-waves; seismic methods; seismic waves; seismicity; Texas; United States; Upper Jurassic ER - TY - JOUR T1 - Extended local Rytov Fourier migration method AN - 51532872; 2006-080855 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Huang, Lian-Jie AU - Fehler, Michael AU - Roberts, Peter AU - Burch, Charles AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 EP - unpaginated PB - Society of Exploration Geophysicists, Tulsa, OK VL - 68 SN - 1052-3812, 1052-3812 KW - migration KW - imagery KW - three-dimensional models KW - finite difference analysis KW - mathematical transformations KW - geophysical methods KW - data processing KW - reflection methods KW - wave fields KW - seismic migration KW - frequency domain analysis KW - two-dimensional models KW - seismic methods KW - models KW - Fourier analysis KW - ray tracing KW - Marmousi model KW - algorithms KW - prestack migration KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51532872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Extended+local+Rytov+Fourier+migration+method&rft.au=Huang%2C+Lian-Jie%3BFehler%2C+Michael%3BRoberts%2C+Peter%3BBurch%2C+Charles%3BAnonymous&rft.aulast=Huang&rft.aufirst=Lian-Jie&rft.date=1998-01-01&rft.volume=68&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, sixty-eighth annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 10 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; data processing; finite difference analysis; Fourier analysis; frequency domain analysis; geophysical methods; imagery; Marmousi model; mathematical transformations; migration; models; prestack migration; ray tracing; reflection methods; seismic methods; seismic migration; three-dimensional models; two-dimensional models; wave fields ER - TY - JOUR T1 - Pyroclastic surges and compressible two-phase flow AN - 51448940; 2007-042435 AB - Although constituting little of the geological record, pyroclastic surges are now recognized as products of some of the most hazardous eruptive manifestations. They were initially defined by analogy to the base surge that accompanies large surface explosions, common to the atmospheric testing of nuclear weapons in the 1950s. Their textural similarity to high-flow-regime aqueous sediments led early workers to interpret their origins by analogy to submarine density currents and fluvial sedimentation. However recognition of the same deposits left around the craters of large nuclear and non-nuclear explosions attests to their origin by the high-speed flow of a gas and particulate mixture under the influence of propagating shock waves. Such a two-phase compressible flow regime is similar to conventional sediments only to the extent that one can make an analogy between the Froude and Mach numbers. In survey of recent terminology, pyroclastic surges are defined as lean, turbulent gas and particulate flows as opposed to dense, laminar transport displayed by pyroclastic flows. This conventional jargon is incorrect, considering the wide range of bedforms left by pyroclastic surges, notwithstanding the problem of distinguishing between transport and depositional regimes, phenomena that have never been monitored nor closely observed. Considering shock-tube and wind-tunnel experiments with dusty gases and the ever developing theory of multiphase compressible flow, surges are predicted to both modify and be modified by the substrate over which they travel, a hypothesis that field work readily supports. However great their complexity, the careful mapping and analysis of pyroclastic surges is paramount in evaluating volcanic risk as well as understanding the formation of economic ore deposits and geothermal systems. JF - Developments in Volcanology AU - Wohletz, Kenneth H A2 - Freundt, Armin A2 - Rosi, Mauro Y1 - 1998 PY - 1998 DA - 1998 SP - 247 EP - 312 PB - Elsevier, Amsterdam KW - volcanic rocks KW - impact features KW - pyroclastic surges KW - igneous rocks KW - Mars KW - physical models KW - explosive eruptions KW - transport KW - volcanism KW - tuff KW - volcanic ash KW - nuclear explosions KW - explosions KW - numerical analysis KW - sedimentation KW - ejecta KW - volcanology KW - terrestrial planets KW - pyroclastics KW - planets KW - volcanoes KW - impact craters KW - Yuti Crater KW - ash clouds KW - 24:Quaternary geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51448940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Developments+in+Volcanology&rft.atitle=Pyroclastic+surges+and+compressible+two-phase+flow&rft.au=Wohletz%2C+Kenneth+H&rft.aulast=Wohletz&rft.aufirst=Kenneth&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=247&rft.isbn=0444829598&rft.btitle=&rft.title=Developments+in+Volcanology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 120 N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #06785 N1 - SubjectsTermNotLitGenreText - ash clouds; ejecta; explosions; explosive eruptions; igneous rocks; impact craters; impact features; Mars; nuclear explosions; numerical analysis; physical models; planets; pyroclastic surges; pyroclastics; sedimentation; terrestrial planets; transport; tuff; volcanic ash; volcanic rocks; volcanism; volcanoes; volcanology; Yuti Crater ER - TY - JOUR T1 - Kirchhoff-Born migration AN - 51346814; 2007-119552 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Hildebrand, Steve AU - Fehler, Michael AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 3 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 68 SN - 1052-3812, 1052-3812 KW - models KW - geophysical methods KW - propagation KW - Born approximation KW - algorithms KW - seismic migration KW - Kirchhoff integral KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51346814?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Kirchhoff-Born+migration&rft.au=Hildebrand%2C+Steve%3BFehler%2C+Michael%3BAnonymous&rft.aulast=Hildebrand&rft.aufirst=Steve&rft.date=1998-01-01&rft.volume=68&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, sixty-eighth annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 5 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; Born approximation; geophysical methods; Kirchhoff integral; models; propagation; seismic methods; seismic migration ER - TY - JOUR T1 - Early results from the Lunar Prospector gamma-ray spectrometer AN - 51342813; 2000-035333 JF - LPI Contribution AU - Lawrence, D J AU - Feldman, W C AU - Binder, A B AU - Maurice, S AU - Barraclough, B L AU - Elphic, R C A2 - Jolliff, Bradley L. A2 - Ryder, G. Y1 - 1998 PY - 1998 DA - 1998 SP - 50 EP - 51 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - gamma-ray methods KW - oxygen KW - Moon KW - cartography KW - Lunar Prospector Program KW - alkali metals KW - Joule Crater KW - lunar highlands KW - silicon KW - iron KW - Mare Imbrium KW - titanium KW - metals KW - potassium KW - gamma-ray spectra KW - thorium KW - Fra Mauro KW - uranium KW - spectra KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51342813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Early+results+from+the+Lunar+Prospector+gamma-ray+spectrometer&rft.au=Lawrence%2C+D+J%3BFeldman%2C+W+C%3BBinder%2C+A+B%3BMaurice%2C+S%3BBarraclough%2C+B+L%3BElphic%2C+R+C&rft.aulast=Lawrence&rft.aufirst=D&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=50&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon; integrated remotely sensed, geophysical, and sample datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; cartography; Fra Mauro; gamma-ray methods; gamma-ray spectra; iron; Joule Crater; lunar highlands; Lunar Prospector Program; Mare Imbrium; metals; Moon; oxygen; potassium; silicon; spectra; thorium; titanium; uranium ER - TY - JOUR T1 - Lunar Prospector neutron measurements compared to Clementine iron and titanium abundances AN - 51342746; 2000-035317 JF - LPI Contribution AU - Elphic, R C AU - Maurice, S AU - Lawrence, D J AU - Feldman, W C AU - Barraclough, B L AU - Binder, A B AU - Lucey, P G A2 - Jolliff, Bradley L. A2 - Ryder, G. Y1 - 1998 PY - 1998 DA - 1998 SP - 27 EP - 29 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - impact features KW - Moon KW - cartography KW - Lunar Prospector Program KW - correlation KW - maria KW - iron KW - absorption KW - KREEP KW - neutrons KW - neutron probe data KW - titanium KW - metals KW - lunar crust KW - lunar mantle KW - basins KW - Clementine Program KW - cosmic rays KW - reflectance KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51342746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Lunar+Prospector+neutron+measurements+compared+to+Clementine+iron+and+titanium+abundances&rft.au=Elphic%2C+R+C%3BMaurice%2C+S%3BLawrence%2C+D+J%3BFeldman%2C+W+C%3BBarraclough%2C+B+L%3BBinder%2C+A+B%3BLucey%2C+P+G&rft.aulast=Elphic&rft.aufirst=R&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon; integrated remotely sensed, geophysical, and sample datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - absorption; basins; cartography; Clementine Program; correlation; cosmic rays; impact features; iron; KREEP; lunar crust; lunar mantle; Lunar Prospector Program; lunar soils; maria; metals; Moon; neutron probe data; neutrons; reflectance; titanium ER - TY - JOUR T1 - First results from the Lunar prospector gamma ray spectrometer; the KREEP distribution on the Moon as delineated by thorium and potassium AN - 51341697; 2001-027413 JF - Eos, Transactions, American Geophysical Union AU - Binder, A B AU - Feldman, W C AU - Lawrence, D J AU - Maurice, S AU - Barraclough, B L AU - Elphic, R C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - S189 EP - S190 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - Moon KW - alkali metals KW - KREEP KW - Mare Imbrium KW - metals KW - lunar crust KW - potassium KW - gamma-ray spectra KW - thorium KW - spectra KW - rare earths KW - actinides KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51341697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=First+results+from+the+Lunar+prospector+gamma+ray+spectrometer%3B+the+KREEP+distribution+on+the+Moon+as+delineated+by+thorium+and+potassium&rft.au=Binder%2C+A+B%3BFeldman%2C+W+C%3BLawrence%2C+D+J%3BMaurice%2C+S%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Binder&rft.aufirst=A&rft.date=1998-01-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=S189&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; gamma-ray spectra; KREEP; lunar crust; lunar soils; Mare Imbrium; metals; Moon; potassium; rare earths; spectra; thorium ER - TY - JOUR T1 - Deposits of hydrogen on the Moon AN - 51340593; 2000-035318 JF - LPI Contribution AU - Feldman, W C AU - Maurice, S AU - Lawrence, D J AU - Barraclough, B L AU - Elphic, R C AU - Binder, A B A2 - Jolliff, Bradley L. A2 - Ryder, G. Y1 - 1998 PY - 1998 DA - 1998 SP - 29 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - water KW - polar regions KW - asteroids KW - Moon KW - cartography KW - solar wind KW - Lunar Prospector Program KW - radar methods KW - correlation KW - impacts KW - lunar craters KW - measurement KW - volatiles KW - lunar samples KW - comets KW - neutrons KW - ice KW - hydrogen KW - regolith KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51340593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Deposits+of+hydrogen+on+the+Moon&rft.au=Feldman%2C+W+C%3BMaurice%2C+S%3BLawrence%2C+D+J%3BBarraclough%2C+B+L%3BElphic%2C+R+C%3BBinder%2C+A+B&rft.aulast=Feldman&rft.aufirst=W&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop on New views of the Moon; integrated remotely sensed, geophysical, and sample datasets N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - asteroids; cartography; comets; correlation; hydrogen; ice; impacts; lunar craters; Lunar Prospector Program; lunar samples; lunar soils; measurement; Moon; neutrons; polar regions; radar methods; regolith; solar wind; volatiles; water ER - TY - JOUR T1 - First results from the Lunar Prospector spectrometers AN - 51338971; 2000-044077 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Feldman, W C AU - Binder, A B AU - Barraclough, B L AU - Belian, R D AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - alpha-ray spectroscopy KW - neutron probe KW - Moon KW - data acquisition KW - Lunar Prospector Program KW - data processing KW - gamma-ray spectroscopy KW - orbital observations KW - spectroscopy KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51338971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=First+results+from+the+Lunar+Prospector+spectrometers&rft.au=Feldman%2C+W+C%3BBinder%2C+A+B%3BBarraclough%2C+B+L%3BBelian%2C+R+D%3BAnonymous&rft.aulast=Feldman&rft.aufirst=W&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - PubXState - TX N1 - SuppNotes - Abstract number 1936 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alpha-ray spectroscopy; data acquisition; data processing; gamma-ray spectroscopy; instruments; Lunar Prospector Program; Moon; neutron probe; orbital observations; spectroscopy ER - TY - JOUR T1 - Predicting runoff in semiarid woodlands; evaluation of the WEPP model AN - 51178582; 2001-059655 JF - NATO ASI Series. Series I: Global Environmental Change AU - Wilcox, Bradford P AU - Simanton, J R A2 - Boardman, John A2 - Favis-Mortlock, David T. Y1 - 1998 PY - 1998 DA - 1998 SP - 131 EP - 140 PB - Springer Verlag, Berlin VL - 55 SN - 1431-7125, 1431-7125 KW - soils KW - hydrology KW - forests KW - terrestrial environment KW - erosion KW - rainfall KW - surface water KW - semi-arid environment KW - prediction KW - simulation KW - environmental effects KW - climate change KW - models KW - Water Erosion Prediction Project KW - infiltration KW - runoff KW - hydraulic conductivity KW - soil erosion KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51178582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NATO+ASI+Series.+Series+I%3A+Global+Environmental+Change&rft.atitle=Predicting+runoff+in+semiarid+woodlands%3B+evaluation+of+the+WEPP+model&rft.au=Wilcox%2C+Bradford+P%3BSimanton%2C+J+R&rft.aulast=Wilcox&rft.aufirst=Bradford&rft.date=1998-01-01&rft.volume=55&rft.issue=&rft.spage=131&rft.isbn=3540640347&rft.btitle=&rft.title=NATO+ASI+Series.+Series+I%3A+Global+Environmental+Change&rft.issn=14317125&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Global change ; Modelling soil erosion by water N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 6 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - climate change; environmental effects; erosion; forests; hydraulic conductivity; hydrology; infiltration; land use; models; prediction; rainfall; runoff; semi-arid environment; simulation; soil erosion; soils; surface water; terrestrial environment; Water Erosion Prediction Project ER - TY - JOUR T1 - Heatpipe power system (HPS) and heatpipe bimodal system (HBS) AN - 51036549; 1999-007684 JF - LPI Technical Report AU - Houts, Michael G AU - Poston, David I AU - Berte, Marc V A2 - Duke, M. B. Y1 - 1998 PY - 1998 DA - 1998 SP - 37 EP - 39 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - Moon KW - Mars KW - cost KW - exploration KW - terrestrial planets KW - planets KW - utilization KW - safety KW - energy sources KW - fission KW - energy KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51036549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Heatpipe+power+system+%28HPS%29+and+heatpipe+bimodal+system+%28HBS%29&rft.au=Houts%2C+Michael+G%3BPoston%2C+David+I%3BBerte%2C+Marc+V&rft.aulast=Houts&rft.aufirst=Michael&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on Using in situ resources for construction of planetary outposts N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - cost; design; energy; energy sources; exploration; fission; Mars; Moon; planets; safety; terrestrial planets; utilization ER - TY - JOUR T1 - Fission power systems for surface outposts AN - 51034157; 1999-007668 JF - LPI Technical Report AU - Houts, Michael G AU - Poston, David I AU - Berte, Marc V A2 - Duke, M. B. Y1 - 1998 PY - 1998 DA - 1998 SP - 8 EP - 9 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - in situ KW - Moon KW - Mars KW - terrestrial planets KW - planets KW - utilization KW - safety KW - nuclear energy KW - natural resources KW - energy sources KW - efficiency KW - fission KW - construction KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51034157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Fission+power+systems+for+surface+outposts&rft.au=Houts%2C+Michael+G%3BPoston%2C+David+I%3BBerte%2C+Marc+V&rft.aulast=Houts&rft.aufirst=Michael&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on Using in situ resources for construction of planetary outposts N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - construction; efficiency; energy sources; fission; in situ; Mars; Moon; natural resources; nuclear energy; planets; regolith; safety; terrestrial planets; utilization ER - TY - JOUR T1 - Micro-mechanical modeling of perforating shock damage AN - 51025287; 1999-052904 JF - Proceedings - SPE Symposium on Formation Damage Control AU - Swift, R P AU - Behrmann, L A AU - Halleck, P M AU - Krogh, K E AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 381 EP - 391 PB - American Institute of Mining, Metallurgical and Petroleum Engineers VL - 1998 SN - 0271-7131, 0271-7131 KW - petroleum engineering KW - cementation KW - petroleum KW - production KW - porosity KW - rock mechanics KW - reservoir rocks KW - models KW - formation damage KW - diagenesis KW - perforation KW - reservoir properties KW - drilling KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51025287?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+SPE+Symposium+on+Formation+Damage+Control&rft.atitle=Micro-mechanical+modeling+of+perforating+shock+damage&rft.au=Swift%2C+R+P%3BBehrmann%2C+L+A%3BHalleck%2C+P+M%3BKrogh%2C+K+E%3BAnonymous&rft.aulast=Swift&rft.aufirst=R&rft.date=1998-01-01&rft.volume=1998&rft.issue=&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+SPE+Symposium+on+Formation+Damage+Control&rft.issn=02717131&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Formation damage control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 27 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - cementation; diagenesis; drilling; formation damage; models; perforation; petroleum; petroleum engineering; porosity; production; reservoir properties; reservoir rocks; rock mechanics ER - TY - JOUR T1 - Recent developments in digital gravity data acquisition on land AN - 50926673; 1998-020722 JF - Leading Edge (Tulsa, OK) AU - Aiken, Carlos L V AU - Balde, Mamadou AU - Ferguson, John F AU - Lyman, Gregory D AU - Xu, Xueming AU - Cogbill, Allen H Y1 - 1998/01// PY - 1998 DA - January 1998 SP - 93 EP - 97 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 17 IS - 1 SN - 1070-485X, 1070-485X KW - digital data KW - gravimeters KW - Global Positioning System KW - laser methods KW - data acquisition KW - geophysical methods KW - data processing KW - geodesy KW - digital terrain models KW - models KW - gravity methods KW - tunnels KW - instruments KW - geoid KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50926673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Leading+Edge+%28Tulsa%2C+OK%29&rft.atitle=Recent+developments+in+digital+gravity+data+acquisition+on+land&rft.au=Aiken%2C+Carlos+L+V%3BBalde%2C+Mamadou%3BFerguson%2C+John+F%3BLyman%2C+Gregory+D%3BXu%2C+Xueming%3BCogbill%2C+Allen+H&rft.aulast=Aiken&rft.aufirst=Carlos+L&rft.date=1998-01-01&rft.volume=17&rft.issue=1&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Leading+Edge+%28Tulsa%2C+OK%29&rft.issn=1070485X&rft_id=info:doi/10.1190%2F1.1437842 L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - OK N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - data acquisition; data processing; digital data; digital terrain models; geodesy; geoid; geophysical methods; Global Positioning System; gravimeters; gravity methods; instruments; laser methods; models; tunnels DO - http://dx.doi.org/10.1190/1.1437842 ER - TY - JOUR T1 - Numerical simulation of in situ bioremediation AN - 50919219; 1999-028841 JF - Water Studies AU - Travis, Bryan J A2 - Burganos, V. N. A2 - Karatzas, G. P. A2 - Payatakes, A. C. A2 - Brebbia, C. A. A2 - Gray, W. G. A2 - Pinder, G. F. Y1 - 1998 PY - 1998 DA - 1998 SP - 91 EP - 98 PB - Computational Mechanics Publications co-published with Springer-Verlag, Southampton - Boston VL - 12, Vol. 1 SN - 1462-6071, 1462-6071 KW - sorption KW - numerical models KW - in situ KW - TRAMPP KW - pollution KW - mathematical models KW - fluid dynamics KW - bioremediation KW - simulation KW - porosity KW - remediation KW - ground water KW - aquifers KW - nutrients KW - toxicity KW - transport KW - algorithms KW - kinetics KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50919219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Studies&rft.atitle=Numerical+simulation+of+in+situ+bioremediation&rft.au=Travis%2C+Bryan+J&rft.aulast=Travis&rft.aufirst=Bryan&rft.date=1998-01-01&rft.volume=12%2C+Vol.+1&rft.issue=&rft.spage=91&rft.isbn=1853126527&rft.btitle=&rft.title=Water+Studies&rft.issn=14626071&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - XII international conference on Computational methods in water resources N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 16 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; aquifers; bioremediation; fluid dynamics; ground water; in situ; kinetics; mathematical models; microorganisms; numerical models; nutrients; pollution; porosity; remediation; simulation; sorption; toxicity; TRAMPP; transport ER - TY - JOUR T1 - Influence of wettability on constitutive relations and its role in upscaling AN - 50914177; 1999-028880 JF - Water Studies AU - Soll, W E AU - Gray, W G AU - Tompson, Andrew F B A2 - Burganos, V. N. A2 - Karatzas, G. P. A2 - Payatakes, A. C. A2 - Brebbia, C. A. A2 - Gray, W. G. A2 - Pinder, G. F. Y1 - 1998 PY - 1998 DA - 1998 SP - 413 EP - 420 PB - Computational Mechanics Publications co-published with Springer-Verlag, Southampton - Boston VL - 12, Vol. 1 SN - 1462-6071, 1462-6071 KW - capillary pressure KW - drainage KW - porous materials KW - mathematical models KW - fluid dynamics KW - simulation KW - porosity KW - ground water KW - aquifers KW - multiphase flow KW - wettability KW - constitutive equations KW - thermodynamic properties KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50914177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Studies&rft.atitle=Influence+of+wettability+on+constitutive+relations+and+its+role+in+upscaling&rft.au=Soll%2C+W+E%3BGray%2C+W+G%3BTompson%2C+Andrew+F+B&rft.aulast=Soll&rft.aufirst=W&rft.date=1998-01-01&rft.volume=12%2C+Vol.+1&rft.issue=&rft.spage=413&rft.isbn=1853126527&rft.btitle=&rft.title=Water+Studies&rft.issn=14626071&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - XII international conference on Computational methods in water resources N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 9 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; capillary pressure; constitutive equations; drainage; fluid dynamics; ground water; mathematical models; multiphase flow; porosity; porous materials; simulation; thermodynamic properties; wettability ER - TY - JOUR T1 - Copper skarn development in moat sediments of the Taum Sauk Caldera, southeastern Missouri, USA AN - 50908192; 2001-035459 JF - Program with Abstracts - Geological Association of Canada; Mineralogical Association of Canada: Joint Annual Meeting AU - Noll, Philip D, Jr AU - Lowell, Gary R AU - Vierrether, Christopher B AU - Hebert, Rejean Y1 - 1998 PY - 1998 DA - 1998 SP - 136 PB - Geological Association of Canada, Waterloo, ON VL - 23 SN - 0701-8738, 0701-8738 KW - United States KW - upper Precambrian KW - Precambrian KW - southeastern Missouri KW - Missouri KW - Taum Sauk Caldera KW - Proterozoic KW - calderas KW - volcanic features KW - Ketcherside Mountain KW - metamorphic rocks KW - metal ores KW - copper ores KW - skarn KW - metasomatic rocks KW - Bollinger County Missouri KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50908192?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+with+Abstracts+-+Geological+Association+of+Canada%3B+Mineralogical+Association+of+Canada%3A+Joint+Annual+Meeting&rft.atitle=Copper+skarn+development+in+moat+sediments+of+the+Taum+Sauk+Caldera%2C+southeastern+Missouri%2C+USA&rft.au=Noll%2C+Philip+D%2C+Jr%3BLowell%2C+Gary+R%3BVierrether%2C+Christopher+B%3BHebert%2C+Rejean&rft.aulast=Noll&rft.aufirst=Philip&rft.date=1998-01-01&rft.volume=23&rft.issue=&rft.spage=136&rft.isbn=&rft.btitle=&rft.title=Program+with+Abstracts+-+Geological+Association+of+Canada%3B+Mineralogical+Association+of+Canada%3A+Joint+Annual+Meeting&rft.issn=07018738&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Joint GAC-MAC annual meeting ; Crossroads in earth sciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - ON N1 - Last updated - 2012-06-07 N1 - CODEN - PAACD6 N1 - SubjectsTermNotLitGenreText - Bollinger County Missouri; calderas; copper ores; Ketcherside Mountain; metal ores; metamorphic rocks; metasomatic rocks; Missouri; Precambrian; Proterozoic; skarn; southeastern Missouri; Taum Sauk Caldera; United States; upper Precambrian; volcanic features ER - TY - JOUR T1 - A Raman spectroscopy study of thio-arsenite and arsenite species in low-temperature aqueous solutions AN - 50870434; 2007-031584 JF - Proceedings - International Symposium on Water-Rock Interaction AU - Wood, S A AU - Tait, C D AU - Janecky, D R A2 - Arehart, Greg B. A2 - Hulston, John R. Y1 - 1998 PY - 1998 DA - 1998 SP - 863 EP - 866 PB - International Association of Geochemistry and Cosmochemistry and Alberta Research Council, Sub-Group on Water-Rock Interaction, Toronto, ON VL - 9 SN - 0258-7610, 0258-7610 KW - concentration KW - polymerization KW - aqueous solutions KW - solubility KW - temperature KW - arsenites KW - Raman spectra KW - thioarsenite KW - low temperature KW - chemical properties KW - spectra KW - chemical fractionation KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50870434?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Symposium+on+Water-Rock+Interaction&rft.atitle=A+Raman+spectroscopy+study+of+thio-arsenite+and+arsenite+species+in+low-temperature+aqueous+solutions&rft.au=Wood%2C+S+A%3BTait%2C+C+D%3BJanecky%2C+D+R&rft.aulast=Wood&rft.aufirst=S&rft.date=1998-01-01&rft.volume=9&rft.issue=&rft.spage=863&rft.isbn=9054109424&rft.btitle=&rft.title=Proceedings+-+International+Symposium+on+Water-Rock+Interaction&rft.issn=02587610&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 9th international symposium on Water-rock interaction N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 14 N1 - PubXState - ON N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aqueous solutions; arsenites; chemical fractionation; chemical properties; concentration; low temperature; polymerization; Raman spectra; solubility; spectra; temperature; thioarsenite ER - TY - JOUR T1 - Development and testing of a 0.5-inch microhole geophone package AN - 50400596; 2009-066542 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Albright, James N AU - Wood, Daniel M AU - Fairbanks, Thomas D AU - Rutledge, James T AU - Thomson, James C AU - Howlett, Don AU - Barge, David AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 EP - Abstract 867 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 68 SN - 1052-3812, 1052-3812 KW - geophones KW - boreholes KW - geophysical methods KW - downhole methods KW - instruments KW - size KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50400596?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Development+and+testing+of+a+0.5-inch+microhole+geophone+package&rft.au=Albright%2C+James+N%3BWood%2C+Daniel+M%3BFairbanks%2C+Thomas+D%3BRutledge%2C+James+T%3BThomson%2C+James+C%3BHowlett%2C+Don%3BBarge%2C+David%3BAnonymous&rft.aulast=Albright&rft.aufirst=James&rft.date=1998-01-01&rft.volume=68&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists international exposition and sixty-eight annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 2 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boreholes; downhole methods; geophones; geophysical methods; instruments; seismic methods; size ER - TY - JOUR T1 - Use of the prototype CHEMIN XRD/XRF instrument in analyzing complex mixtures of potential Martian sulfate minerals AN - 50317090; 2000-043509 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Vaniman, D AU - Bish, D AU - Blake, David F AU - Collins, S A AU - Chipera, S AU - Sarrazin, P AU - Elliott, S T AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - experimental studies KW - chemical analysis KW - CHEmical and MINeralogic analyzer KW - X-ray fluorescence KW - X-ray diffraction data KW - sulfates KW - Mars KW - X-ray diffraction analysis KW - terrestrial planets KW - loweite KW - CHEMIN instrument KW - planets KW - laboratory studies KW - mineral composition KW - konyaite KW - X-ray fluorescence spectra KW - X-ray analysis KW - applications KW - spectra KW - synthesis KW - instruments KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50317090?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Use+of+the+prototype+CHEMIN+XRD%2FXRF+instrument+in+analyzing+complex+mixtures+of+potential+Martian+sulfate+minerals&rft.au=Vaniman%2C+D%3BBish%2C+D%3BBlake%2C+David+F%3BCollins%2C+S+A%3BChipera%2C+S%3BSarrazin%2C+P%3BElliott%2C+S+T%3BAnonymous&rft.aulast=Vaniman&rft.aufirst=D&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Abstract number 1692 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - applications; chemical analysis; CHEmical and MINeralogic analyzer; CHEMIN instrument; experimental studies; instruments; konyaite; laboratory studies; loweite; Mars; mineral composition; planets; spectra; sulfates; synthesis; terrestrial planets; X-ray analysis; X-ray diffraction analysis; X-ray diffraction data; X-ray fluorescence; X-ray fluorescence spectra ER - TY - JOUR T1 - Acid-sulfate hydrothermal fluids and the origin of the Martian soil AN - 50316182; 2000-030166 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Newsom, H E AU - Hagerty, J J AU - Goff, F AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - water KW - soils KW - chlorine KW - sulfate ion KW - halogens KW - Mars KW - fluid phase KW - migration of elements KW - impacts KW - hydrothermal conditions KW - geochemical cycle KW - terrestrial planets KW - planets KW - sulfur KW - geochemistry KW - chemical ratios KW - regolith KW - pH KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50316182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Acid-sulfate+hydrothermal+fluids+and+the+origin+of+the+Martian+soil&rft.au=Newsom%2C+H+E%3BHagerty%2C+J+J%3BGoff%2C+F%3BAnonymous&rft.aulast=Newsom&rft.aufirst=H&rft.date=1998-01-01&rft.volume=29&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Abstract number 1696 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical ratios; chlorine; fluid phase; geochemical cycle; geochemistry; halogens; hydrothermal conditions; impacts; Mars; migration of elements; pH; planets; regolith; soils; sulfate ion; sulfur; terrestrial planets; water ER - TY - JOUR T1 - Construction of planetary habitation tunnels using a rockmelt-kerfing tunnel-boring machine powered by a bimodal heat pipe reactor AN - 50300138; 1999-007658 JF - LPI Technical Report AU - Blacic, J D AU - Houts, Michael G AU - Blacic, T M A2 - Duke, M. B. Y1 - 1998 PY - 1998 DA - 1998 SP - 2 EP - 3 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - methods KW - technology KW - in situ KW - Moon KW - Mars KW - ultraviolet radiation KW - exploration KW - terrestrial planets KW - planets KW - natural resources KW - electromagnetic radiation KW - tunnel boring machines KW - tunnels KW - underground installations KW - heating KW - glass materials KW - construction KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50300138?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Construction+of+planetary+habitation+tunnels+using+a+rockmelt-kerfing+tunnel-boring+machine+powered+by+a+bimodal+heat+pipe+reactor&rft.au=Blacic%2C+J+D%3BHouts%2C+Michael+G%3BBlacic%2C+T+M&rft.aulast=Blacic&rft.aufirst=J&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=2&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on Using in situ resources for construction of planetary outposts N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - construction; electromagnetic radiation; exploration; glass materials; heating; in situ; instruments; Mars; methods; Moon; natural resources; planets; technology; terrestrial planets; tunnel boring machines; tunnels; ultraviolet radiation; underground installations ER - TY - JOUR T1 - Resistivity structure of the Olympic Mountains and Puget Lowlands AN - 50139484; 2000-010593 AB - Magnetotellurics has been used to study of the geo-electric structure of the Olympic Mountains and Puget Lowland. Data were collected along an west-east line extending from the Pacific Ocean to the Cascade Mountains. The smoothest resistivity model consistent with the data suggests that subduction of the Olympic Mountains accretionary complex (Core rocks) has been prevented by a 30+ km thick sequence of volcanic rocks. This may effectively couple the Juan de Fuca and North American Plates and may explain the concentration of crustal earthquakes beneath the Puget Lowland. Copyright 1998 by the American Geophysical Union. JF - Geophysical Research Letters AU - Aprea, Claudia AU - Unsworth, Martyn AU - Booker, John Y1 - 1998/01// PY - 1998 DA - January 1998 SP - 109 EP - 112 PB - American Geophysical Union, Washington, DC VL - 25 IS - 1 SN - 0094-8276, 0094-8276 KW - United States KW - Washington KW - geophysical surveys KW - Juan de Fuca Plate KW - Eocene KW - geophysical methods KW - electrical methods KW - Paleogene KW - resistivity KW - North American Plate KW - magnetotelluric methods KW - models KW - Cenozoic KW - Olympic Peninsula KW - Tertiary KW - Puget Lowland KW - Crescent Formation KW - accretionary wedges KW - surveys KW - tectonics KW - Olympic Mountains KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50139484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Resistivity+structure+of+the+Olympic+Mountains+and+Puget+Lowlands&rft.au=Aprea%2C+Claudia%3BUnsworth%2C+Martyn%3BBooker%2C+John&rft.aulast=Aprea&rft.aufirst=Claudia&rft.date=1998-01-01&rft.volume=25&rft.issue=1&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F97GL03490 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - accretionary wedges; Cenozoic; Crescent Formation; electrical methods; Eocene; geophysical methods; geophysical surveys; Juan de Fuca Plate; magnetotelluric methods; models; North American Plate; Olympic Mountains; Olympic Peninsula; Paleogene; Puget Lowland; resistivity; surveys; tectonics; Tertiary; United States; Washington DO - http://dx.doi.org/10.1029/97GL03490 ER - TY - JOUR T1 - Transportation systems; seaports AN - 50081522; 1999-045885 JF - U. S. Geological Survey Professional Paper AU - Farrar, Charles R AU - Griffin, A Claude Y1 - 1998 PY - 1998 DA - 1998 SP - A111 EP - A119 PB - U. S. Geological Survey, Reston, VA SN - 1044-9612, 1044-9612 KW - United States KW - geologic hazards KW - harbors KW - destruction KW - damage KW - transportation KW - cost KW - California KW - marine installations KW - Southern California KW - planning KW - navigation KW - USGS KW - earthquakes KW - Loma Prieta earthquake 1989 KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081522?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=U.+S.+Geological+Survey+Professional+Paper&rft.atitle=Transportation+systems%3B+seaports&rft.au=Farrar%2C+Charles+R%3BGriffin%2C+A+Claude&rft.aulast=Farrar&rft.aufirst=Charles&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=A111&rft.isbn=&rft.btitle=&rft.title=U.+S.+Geological+Survey+Professional+Paper&rft.issn=10449612&rft_id=info:doi/ L2 - http://pubs.usgs.gov/pp/pp1552/pp1552a/ http://pubs.er.usgs.gov/browse/usgs-publications/PP LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Prepared in cooperation with the National Science Foundation N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - California; cost; damage; destruction; earthquakes; geologic hazards; harbors; Loma Prieta earthquake 1989; marine installations; navigation; planning; Southern California; transportation; United States; USGS ER - TY - JOUR T1 - Developing and testing electrochemical methods for treating metal salts, cyanides and organic compounds in waste streams AN - 17144197; 4441088 AB - Electrochemical methods to process radioactive and hazardous (mixed) wastes were studied at a bench scale. Cadmium, copper, mercury, and chromium salts, cyanides, and simple organic compounds were used in the tests. Effective conditions were found to process these waste components by electrolysis. The equipment used in the tests included flow-through cells, a membrane cell, and a graphite packed bed cell. The tested methods included an open cell electrolysis, use of pulsating current, and mediated electro-oxidation. The experiments demonstrated the feasibility of applying electrochemical systems to treat the studied waste components. The great advantage of electrochemical systems is that the treatment of various wastes, or streams containing selected waste components, can be accomplished in a single treatment unit. Additional advantages of electrochemical systems are their safety, ability to recycle, and the fact that they are inclined to receive a positive public perception. The tested systems are presently used at Los Alamos National Laboratory to process mixed wastes. JF - Waste Management AU - Dziewinski, J AU - Marczak, S AU - Nuttall, E AU - Purdy, G AU - Smith, W AU - Taylor, J AU - Zhou, C AD - Chemical Science and Technology, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, jacek@lanl.gov Y1 - 1998 PY - 1998 DA - 1998 SP - 257 EP - 263 VL - 18 IS - 4 SN - 0956-053X, 0956-053X KW - Pollution Abstracts KW - Feasibility studies KW - Heavy metals KW - Cyanide KW - Radioactive wastes KW - Waste treatment KW - Salts KW - Organic compounds KW - Electrochemistry KW - Hazardous wastes KW - P 8000:RADIATION KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17144197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waste+Management&rft.atitle=Developing+and+testing+electrochemical+methods+for+treating+metal+salts%2C+cyanides+and+organic+compounds+in+waste+streams&rft.au=Dziewinski%2C+J%3BMarczak%2C+S%3BNuttall%2C+E%3BPurdy%2C+G%3BSmith%2C+W%3BTaylor%2C+J%3BZhou%2C+C&rft.aulast=Dziewinski&rft.aufirst=J&rft.date=1998-01-01&rft.volume=18&rft.issue=4&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Waste+Management&rft.issn=0956053X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Feasibility studies; Electrochemistry; Hazardous wastes; Radioactive wastes; Cyanide; Waste treatment; Organic compounds; Salts; Heavy metals ER - TY - JOUR T1 - Scale-up and waste-minimization of the Los Alamos process for 1,3,3-trinitroazetidine (TNAZ) AN - 16509021; 4414020 AB - The original synthesis of TNAZ (1,3,3-trinitroazetidine) was developed by T. G. Archibald in 1983 and was scaled up to produce several hundred kg of TNAZ for evaluation by the DoD. Although the synthesis method utilizes inexpensive starting materials, it is a multi-step process that gives less than 20% overall yields and produces significant chemical waste (over 1200 kg kg super(-1) of TNAZ), including large quantities of halogenated solvents. An alternative synthesis, which gives much higher yields of TNAZ and less waste than obtained from the original process, was developed at the Los Alamos National Laboratory. The technology was transferred to Aerojet, Sacramento, where it was scaled up to production-plant quantities to give TNAZ in 57% overall yield. The new process produced about 10% of the waste produced in the original process without recycle of solvents or reagents. It is estimated that recycle of solvents and reagents will reduce the chemical waste to 15.7 kg kg super(-1) of TNAZ. Further improvements in waste reduction have been demonstrated that may eventually lead to a process giving little more than 3.7 kg of chemical waste kg super(-1) of TNAZ in addition to the energy burden encountered with any industrial process. JF - Waste Management AU - Coburn, MD AU - Hiskey, MA AU - Archibald, T G AD - Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1998 PY - 1998 DA - 1998 SP - 143 EP - 146 VL - 17 IS - 2-3 SN - 0956-053X, 0956-053X KW - Pollution Abstracts KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16509021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waste+Management&rft.atitle=Scale-up+and+waste-minimization+of+the+Los+Alamos+process+for+1%2C3%2C3-trinitroazetidine+%28TNAZ%29&rft.au=Coburn%2C+MD%3BHiskey%2C+MA%3BArchibald%2C+T+G&rft.aulast=Coburn&rft.aufirst=MD&rft.date=1998-01-01&rft.volume=17&rft.issue=2-3&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Waste+Management&rft.issn=0956053X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Life cycles of energetic materials. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - A complete remediation system for uranium-contaminated soils: Application to a uranium-contaminated site at Los Alamos National Laboratory AN - 16484176; 4375904 AB - A description of a complete remedial scheme for a uranium-contaminated site is presented. Results for the example site are discussed. Volume reduction for the contaminated soil was greater than 99 percent and secondary waste volumes were kept to a minimum. The stages of physical separation for radioactive segregation, and chemical separation and immobilization of soluble uranium are universally applicable to all uranium-contaminated sites when tailored to specific site requirements. Discussion is presented for adaptation to different soil types and different chemical forms of uranium. JF - Remediation AU - Mason, CFV AU - Lu, Ningping AU - Turney, WRJR AU - Williams, M AD - Los Alamos National Laboratory Y1 - 1998 PY - 1998 DA - 1998 SP - 113 EP - 126 VL - 8 IS - 3 SN - 1051-5658, 1051-5658 KW - LANL KW - USA, New Mexico KW - Pollution Abstracts KW - P 8000:RADIATION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16484176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remediation&rft.atitle=A+complete+remediation+system+for+uranium-contaminated+soils%3A+Application+to+a+uranium-contaminated+site+at+Los+Alamos+National+Laboratory&rft.au=Mason%2C+CFV%3BLu%2C+Ningping%3BTurney%2C+WRJR%3BWilliams%2C+M&rft.aulast=Mason&rft.aufirst=CFV&rft.date=1998-01-01&rft.volume=8&rft.issue=3&rft.spage=113&rft.isbn=&rft.btitle=&rft.title=Remediation&rft.issn=10515658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Transient flow in bounded randomly heterogeneous domains 1. Exact conditional moment equations and recursive approximations AN - 16419656; 4326279 AB - We consider the effect of measuring randomly varying local hydraulic conductivities K(x) on one's ability to predict transient flow within bounded domains, driven by random sources, initial head, and boundary conditions. Our aim is to allow optimum unbiased prediction of local hydraulic heads h(x, t) and Darcy fluxes q(x, t) by means of their ensemble moments, sub(c) and sub(c), conditioned on measurements of K(x). We show that these predictors satisfy a compact deterministic flow equation which contains a space-time integrodifferential "residual flux" term. This term renders sub(c) nonlocal and non-Darcian so that the concept of effective hydraulic conductivity looses meaning in all but a few special cases. Instead, the residual flux contains kernels that constitute nonlocal parameters in space-time that are additionally conditional on hydraulic conductivity data and thus nonunique. The kernels include symmetric and nonsymmetric second-rank tensors as well as vectors. We also develop nonlocal equations for second conditional moments of head and flux which constitute measures of predictive uncertainty. The nonlocal expressions cannot be evaluated directly without either a closure approximation or high-resolution conditional Monte Carlo simulation. To render our theory workable, we develop recursive closure approximations for the moment equations through expansion in powers of a small parameter which represents the standard estimation error of natural log K(x). These approximations are valid to arbitrary order for either mildly heterogeneous or well-conditioned strongly heterogeneous media. They allow, in principle, evaluating the conditional moments numerically on relatively coarse grids, without upscaling, by standard methods such as finite elements. JF - Water Resources Research AU - Tartakovsky, D M AU - Neuman, S P AD - Geoanalysis Group, Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA Y1 - 1998/01// PY - 1998 DA - Jan 1998 SP - 1 EP - 12 VL - 34 IS - 1 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16419656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Transient+flow+in+bounded+randomly+heterogeneous+domains+1.+Exact+conditional+moment+equations+and+recursive+approximations&rft.au=Tartakovsky%2C+D+M%3BNeuman%2C+S+P&rft.aulast=Tartakovsky&rft.aufirst=D&rft.date=1998-01-01&rft.volume=34&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Transient effective hydraulic conductivities under slowly and rapidly varying mean gradients in bounded three-dimensional random media AN - 16419610; 4326281 AB - We have shown elsewhere that in randomly heterogeneous media, the ensemble mean transient flux is generally nonlocal in space-time and therefore non-Darcian. We have also shown that there are special situations in which this flux can be localized so as to render it Darcian in real or transformed domains. Each such situation gives rise to an effective hydraulic conductivity which relates mean gradient to mean flux at any point in real or transformed space-time. In this paper we develop first-order analytical expressions for effective hydraulic conductivity under three-dimensional transient flow through a box-shaped domain due to a mean hydraulic gradient that varies slowly in space and time. When the mean gradient varies rapidly in time, the Laplace transform of the mean flux is local but its real-time equivalent includes a temporal convolution integral; we develop analytical expressions for the real-time kernel of this convolution integral. The box is embedded within a statistically homogeneous natural log hydraulic conductivity field that is Gaussian and exhibits an anisotropic exponential spatial correlation structure. By the effective hydraulic conductivity of a finite box in such a field we imply the ensemble mean (expected value) of all random equivalent conductivities that one could associate with the box under these conditions. We explore the influence of domain size, time, and statistical anisotropy on effective conductivity and include a simple new formula for its variation with statistical anisotropy ratio in an infinite domain under steady state. JF - Water Resources Research AU - Tartakovsky, D M AU - Neuman, S P AD - Geoanalysis Group, Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA Y1 - 1998/01// PY - 1998 DA - Jan 1998 SP - 21 EP - 32 VL - 34 IS - 1 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16419610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Transient+effective+hydraulic+conductivities+under+slowly+and+rapidly+varying+mean+gradients+in+bounded+three-dimensional+random+media&rft.au=Tartakovsky%2C+D+M%3BNeuman%2C+S+P&rft.aulast=Tartakovsky&rft.aufirst=D&rft.date=1998-01-01&rft.volume=34&rft.issue=1&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Transient flow in bounded randomly heterogeneous domains 2. Localization of conditional mean equations and temporal nonlocality effects AN - 16419366; 4326280 AB - In randomly heterogeneous porous media one cannot predict flow behavior with certainty. One can, however, render optimum unbiased predictions of such behavior by means of conditional ensemble mean hydraulic heads and fluxes. We have shown in paper 1 that under transient flow, these optimum predictors are governed by nonlocal equations. In particular, the conditional mean flux is generally nonlocal in space-time and therefore non-Darcian. As such, it cannot be associated with an effective hydraulic conductivity except in special cases. Here we explore analytically situations under which localization is possible so that Darcy's law applies in real, Laplace, and/or infinite Fourier transformed spaces, approximately or exactly, with or without conditioning. We show that the corresponding conditional effective hydraulic conductivity tensor is generally nonsymmetric. An alternative to Darcy's law in each case, valid under mean no-flow conditions along Neumann boundaries, is a quasi-Darcian form that includes only a symmetric tensor which, however, does not constitute a bona fide effective hydraulic conductivity. Both lack of symmetry and differences between Darcian and quasi-Darcian forms disappear to first (but not necessarily higher) order of approximation in the (conditional) variance of natural log hydraulic conductivity. We adopt such an approximation to investigate analytically the effect of temporal nonlocality on one- and three-dimensional mean flows in infinite, statistically homogeneous media. Our results show that temporal nonlocality may manifest itself under either monotonic or oscillatory time variations in the mean hydraulic gradient. The effect of temporal nonlocality increases with the variance of log hydraulic conductivity and is more pronounced in one dimension than in three. JF - Water Resources Research AU - Tartakovsky, D M AU - Neuman, S P AD - Geoanalysis Group, Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA Y1 - 1998/01// PY - 1998 DA - Jan 1998 SP - 13 EP - 20 VL - 34 IS - 1 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16419366?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Transient+flow+in+bounded+randomly+heterogeneous+domains+2.+Localization+of+conditional+mean+equations+and+temporal+nonlocality+effects&rft.au=Tartakovsky%2C+D+M%3BNeuman%2C+S+P&rft.aulast=Tartakovsky&rft.aufirst=D&rft.date=1998-01-01&rft.volume=34&rft.issue=1&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Radioactive contamination incidents involving protective clothing AN - 16264722; 4258915 AB - The study focuses on incidents at Department of Energy facilities involving the migration of radioactive contaminants through protective clothing. The authors analyzed 68 occurrence reports for the following factors: (1) type of work; (2) working conditions; (3) type of anti-contamination material; (4) area of body or clothing contaminated; and (5) nature of spread of contamination. A majority of reports identified strenuous work activities such as maintenance, construction, or decontamination and decommissioning projects. The reports also indicated adverse working conditions that included hot and humid or cramped work environments. The type of anti-contamination clothing most often identified was cotton or water-resistant disposable clothing. Most of the reports also indicated contaminants migrating through perspiration-soaked areas, typically in the knees and forearms. On the basis of their survey, the authors recommend the use of improved engineering controls and resilient, breathable, waterproof protective clothing for work in hot, humid, or damp areas where the possibility of prolonged contact with contamination cannot be easily avoided or controlled. JF - Health Physics AU - Reichelt, R A AU - Clay, ME AU - Eichorst, A J AD - Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1998/01// PY - 1998 DA - Jan 1998 SP - 99 EP - 107 VL - 74 IS - 1 SN - 0017-9078, 0017-9078 KW - temperature KW - working conditions KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - X 24210:Radiation & radioactive materials KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION KW - H 1000:Occupational Safety and Health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16264722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+Physics&rft.atitle=Radioactive+contamination+incidents+involving+protective+clothing&rft.au=Reichelt%2C+R+A%3BClay%2C+ME%3BEichorst%2C+A+J&rft.aulast=Reichelt&rft.aufirst=R&rft.date=1998-01-01&rft.volume=74&rft.issue=1&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Health+Physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Elastic modeling initiative; Part I, Objectives AN - 1510394703; 2014-020091 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - House, Leigh AU - Wyatt, Kay Dautenhahn AU - Kessinger, Walter AU - Larsen, Shawn C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 EP - Abstract 1224 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 68 SN - 1052-3812, 1052-3812 KW - subsalt strata KW - body waves KW - AVO methods KW - geophysical methods KW - reservoir properties KW - elastic waves KW - seismic waves KW - converted waves KW - seismic methods KW - exploration KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1510394703?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Elastic+modeling+initiative%3B+Part+I%2C+Objectives&rft.au=House%2C+Leigh%3BWyatt%2C+Kay+Dautenhahn%3BKessinger%2C+Walter%3BLarsen%2C+Shawn+C%3BAnonymous&rft.aulast=House&rft.aufirst=Leigh&rft.date=1998-01-01&rft.volume=68&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, sixty-eighth annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 10 N1 - PubXState - OK N1 - Last updated - 2014-03-27 N1 - SubjectsTermNotLitGenreText - AVO methods; body waves; converted waves; elastic waves; exploration; geophysical methods; reservoir properties; seismic methods; seismic waves; subsalt strata ER - TY - JOUR T1 - New bifunctional anion-exchange resins for nuclear waste treatment AN - 13663948; S199953455 AB - The design and synthesis are reported of new bifunctional anion-exchange resins based on poly(4-vinylpyridine). Bifunctionality was achieved by incorporating a second anion-exchange site to the pyridine nitrogen. Plutonium(IV) distribution functions were determined using solutions of 3 g plutonium per litre in 1-9 M nitric acid over periods up to 6 h. The 129-keV gamma-ray peak of plutonium-239 was determined for all solutions before and after sorption. The 3- and 4-picolyl derivatives maintained a more rigidly defined geometry between the 2 nitrogen cationic sites and exhibited lower plutonium(IV) distribution coefficients than corresponding N- alkylenepyridium derivatives. Methylation of the second pyridium site increased the distribution coefficient by approximately 20 per cent. JF - Journal of Radioanalytical and Nuclear Chemistry AU - Marsh, S F AU - Jarvinen, G D AU - Bartsch, R A AU - Nam, J AU - Barr, ME AD - Los Alamos National Laboratory, N. Mex. Y1 - 1998 PY - 1998 DA - 1998 SP - 37 EP - 40 VL - 235 IS - 1/2 SN - 0236-5731, 0236-5731 KW - Aqualine Abstracts KW - AQ 00007:Industrial Effluents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13663948?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.atitle=New+bifunctional+anion-exchange+resins+for+nuclear+waste+treatment&rft.au=Marsh%2C+S+F%3BJarvinen%2C+G+D%3BBartsch%2C+R+A%3BNam%2C+J%3BBarr%2C+ME&rft.aulast=Marsh&rft.aufirst=S&rft.date=1998-01-01&rft.volume=235&rft.issue=1%2F2&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.issn=02365731&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Preconcentration of low levels of americium and plutonium from waste waters by synthetic water-soluble metal-binding polymers with ultrafiltration AN - 13614873; 199901217 AB - A method for the analysis of ultra-low concentrations of americium-241 and plutonium-238 in wastewater by preconcentration using a polymer ultrafiltration technique is reported. Samples of at least 1 litre were treated with hydrofluoric acid to prevent silicate precipitation and with hydroxylamine hydrochloride for oxidation state adjustment to plutonium(III) and adjusted to pH 4 with 1 M sodium hydroxide. Subsequent addition of a water-soluble metal binding polymer (phosphonic acid polymer) resulted in selective retention of plutonium-238 and americium-241, which were concentrated from the sample solution by ultrafiltration. The method was applied to simulated wastewater samples and actual samples from a radioactive liquid waste treatment facility. Conditions were optimized to provide a greater than 90 per cent recovery for both actinides. The analysis required about 6 h and did not produce mixed waste. JF - Journal of Radioanalytical and Nuclear Chemistry AU - Smith, B F AU - Gibson, R R AU - Jarvinen, G D AU - Robison, T W AU - Schroeder, N C AU - Stalnaker, N D AD - Los Alamos National Laboratory, N. Mex. Y1 - 1998 PY - 1998 DA - 1998 SP - 225 EP - 229 VL - 234 IS - 1/2 SN - 0236-5731, 0236-5731 KW - Analysis KW - Hydroxylamine hydrochloride KW - Aqualine Abstracts KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13614873?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.atitle=Preconcentration+of+low+levels+of+americium+and+plutonium+from+waste+waters+by+synthetic+water-soluble+metal-binding+polymers+with+ultrafiltration&rft.au=Smith%2C+B+F%3BGibson%2C+R+R%3BJarvinen%2C+G+D%3BRobison%2C+T+W%3BSchroeder%2C+N+C%3BStalnaker%2C+N+D&rft.aulast=Smith&rft.aufirst=B&rft.date=1998-01-01&rft.volume=234&rft.issue=1%2F2&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.issn=02365731&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Depressions surrounding volcanic fields; a reflection of underlying batholiths? AN - 1015461644; 2012-045686 JF - Abstracts - International Volcanological Congress AU - Heiken, G AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 EP - unpaginated PB - International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI), [location varies] VL - 1998 KW - volcanic fields KW - United States KW - Sierra Nevada KW - California KW - calderas KW - intrusions KW - volcanic features KW - Minerets calderas KW - depressions KW - batholiths KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015461644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+-+International+Volcanological+Congress&rft.atitle=Depressions+surrounding+volcanic+fields%3B+a+reflection+of+underlying+batholiths%3F&rft.au=Heiken%2C+G%3BAnonymous&rft.aulast=Heiken&rft.aufirst=G&rft.date=1998-01-01&rft.volume=1998&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+-+International+Volcanological+Congress&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Magmatic diversity; volcanoes and their roots N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-12-15 N1 - CODEN - #05692 N1 - SubjectsTermNotLitGenreText - batholiths; calderas; California; depressions; intrusions; Minerets calderas; Sierra Nevada; United States; volcanic features; volcanic fields ER - TY - JOUR T1 - Multiattribute utility analysis as a framework for public participation in siting a hazardous waste management facility AN - 52666513; 1997-072245 JF - Environmental Management (New York) AU - Merkhofer, Miley W AU - Conway, Rarilee AU - Anderson, Robert G Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 831 EP - 839 PB - Springer-Verlag, New York-Heidelberg-Berlin VL - 21 IS - 6 SN - 0364-152X, 0364-152X KW - United States KW - soils KW - hazardous waste KW - Bernalillo County New Mexico KW - site exploration KW - regulations KW - reclamation KW - public policy KW - water management KW - waste disposal sites KW - soil treatment KW - pollution KW - decision-making KW - New Mexico KW - remediation KW - case studies KW - planning KW - decontamination KW - Kirtland Air Force Base KW - risk assessment KW - ecology KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52666513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Management+%28New+York%29&rft.atitle=Multiattribute+utility+analysis+as+a+framework+for+public+participation+in+siting+a+hazardous+waste+management+facility&rft.au=Merkhofer%2C+Miley+W%3BConway%2C+Rarilee%3BAnderson%2C+Robert+G&rft.aulast=Merkhofer&rft.aufirst=Miley&rft.date=1997-12-01&rft.volume=21&rft.issue=6&rft.spage=831&rft.isbn=&rft.btitle=&rft.title=Environmental+Management+%28New+York%29&rft.issn=0364152X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ENMGDE N1 - SubjectsTermNotLitGenreText - Bernalillo County New Mexico; case studies; decision-making; decontamination; ecology; hazardous waste; Kirtland Air Force Base; land use; New Mexico; planning; pollution; public policy; reclamation; regulations; remediation; risk assessment; site exploration; soil treatment; soils; United States; waste disposal sites; water management ER - TY - JOUR T1 - Nonlinear ground-motion amplification by sediments during the 1994 Northridge earthquake AN - 52625336; 1998-008763 AB - Data of the main earthquake shock and aftershock recordings are compiled for 21 locations. Fifteen of the sites are of Quaternary alluvium, two are Tertiary soft rocks, and four of Mesozoic relatively competent (hard) rock. The epicentres of 184 aftershocks and the surface projection of the main shock rupture distribution of the main shock are figured. The results indicate that ground-motion amplification due to the sediments was up to a factor of two less than the amplification for its aftershocks. This indicates significant non-linearity in this amplification and questions the use of measurements of weak ground motion to predict strong ground motion at sedimentary sites. JF - Nature (London) AU - Field, Edward H AU - Johnson, Paul A AU - Beresnev, Igor A AU - Zeng, Yuehua Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 599 EP - 602 PB - Macmillan Journals, London VL - 390 IS - 6660 SN - 0028-0836, 0028-0836 KW - United States KW - basement KW - elastic waves KW - wave amplification KW - California KW - Hooke's law KW - aftershocks KW - strong motion KW - sedimentary rocks KW - Southern California KW - main shocks KW - sediments KW - ground motion KW - seismic waves KW - Northridge earthquake 1994 KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52625336?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Nonlinear+ground-motion+amplification+by+sediments+during+the+1994+Northridge+earthquake&rft.au=Field%2C+Edward+H%3BJohnson%2C+Paul+A%3BBeresnev%2C+Igor+A%3BZeng%2C+Yuehua&rft.aulast=Field&rft.aufirst=Edward&rft.date=1997-12-01&rft.volume=390&rft.issue=6660&rft.spage=599&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F37586 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 19 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - aftershocks; basement; California; earthquakes; elastic waves; ground motion; Hooke's law; main shocks; Northridge earthquake 1994; sedimentary rocks; sediments; seismic waves; Southern California; strong motion; United States; wave amplification DO - http://dx.doi.org/10.1038/37586 ER - TY - JOUR T1 - The impact of integrating static and dynamic data in quantifying uncertainties in the future prediction of multiphase systems AN - 52611047; 1998-028931 JF - SPE Formation Evaluation AU - Huang, Xuri AU - Gajraj, Allyson AU - Kelkar, Mohan Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 263 EP - 269 PB - Society of Petroleum Engineers (SPE), Richardson, TX VL - 12 IS - 4 SN - 0885-923X, 0885-923X KW - petroleum engineering KW - pressure KW - statistical analysis KW - prediction KW - geostatistics KW - analysis KW - waterflooding KW - porosity KW - models KW - quantitative analysis KW - dynamics KW - multiphase flow KW - reservoir properties KW - heterogeneity KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52611047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SPE+Formation+Evaluation&rft.atitle=The+impact+of+integrating+static+and+dynamic+data+in+quantifying+uncertainties+in+the+future+prediction+of+multiphase+systems&rft.au=Huang%2C+Xuri%3BGajraj%2C+Allyson%3BKelkar%2C+Mohan&rft.aulast=Huang&rft.aufirst=Xuri&rft.date=1997-12-01&rft.volume=12&rft.issue=4&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=SPE+Formation+Evaluation&rft.issn=0885923X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - analysis; dynamics; geostatistics; heterogeneity; models; multiphase flow; permeability; petroleum engineering; porosity; prediction; pressure; quantitative analysis; reservoir properties; statistical analysis; waterflooding ER - TY - JOUR T1 - Heterogeneous structure around the Jemez volcanic field, New Mexico, USA, as inferred from the envelope inversion of active-experiment seismic data AN - 52610113; 1998-032352 AB - We analyse active-experiment seismic data obtained by the 1993 Jemez Tomography Experiment (JTEX) programme to elucidate the heterogeneous structure of the Jemez volcanic field, which is located at the boundary between the Colorado Plateau and the Rio Grande Rift. Using a single isotropic scattering assumption, we first calculate the envelope Green's functions for the upper and lower crust and the uppermost mantle. By fitting the theoretical envelopes with the observed three-component data, we estimate depth-dependent features of the scattering coefficients around Valles Caldera. We estimate the ratios of scattering coefficients, rather than scattering coefficients themselves, because of the uncertainty of the seismic efficiency of the explosive sources and knowledge of absolute site-amplification factors. The strongest scattering coefficients are observed at a shallow depth beneath the Valles Caldera. This is considered to be related to the complex structure caused by two episodes of caldera formation and the ensuing resurgent uplift in the caldera, etc. The depth-dependent characters of the scattering coefficients for the Colorado Plateau and the Rio Grande Rift are similar to each other: a transparent upper crust and a heterogeneous lower crust (small and large scattering coefficients, respectively). However, the scattering coefficients beneath the Rio Grande Rift are several times larger than those beneath the Colorado Plateau. Depths of the lower crust and the Moho boundary beneath the Rio Grande Rift are shallower than those of the Colorado Plateau. From their geological settings and other geophysical results around the region, we infer that the larger scattering coefficients of the rift are associated with rift formation and volcanic activity, such as magma ascent from the upper mantle to the crust. JF - Geophysical Journal International AU - Nishimura, Takeshi AU - Fehler, Michael AU - Baldridge, W Scott AU - Roberts, Peter AU - Steck, Lee Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 667 EP - 681 PB - Blackwell Scientific, Oxford VL - 131 IS - 3 SN - 0956-540X, 0956-540X KW - upper crust KW - United States KW - tomography KW - Jemez volcanic field KW - upper mantle KW - North America KW - Colorado Plateau KW - magmatism KW - mantle KW - Green function KW - New Mexico KW - rifting KW - Mohorovicic discontinuity KW - volcanic fields KW - Rio Grande Rift KW - plate tectonics KW - volcanism KW - velocity structure KW - Valles Caldera KW - Jemez Lineament KW - interpretation KW - lower crust KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52610113?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Journal+International&rft.atitle=Heterogeneous+structure+around+the+Jemez+volcanic+field%2C+New+Mexico%2C+USA%2C+as+inferred+from+the+envelope+inversion+of+active-experiment+seismic+data&rft.au=Nishimura%2C+Takeshi%3BFehler%2C+Michael%3BBaldridge%2C+W+Scott%3BRoberts%2C+Peter%3BSteck%2C+Lee&rft.aulast=Nishimura&rft.aufirst=Takeshi&rft.date=1997-12-01&rft.volume=131&rft.issue=3&rft.spage=667&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Colorado Plateau; crust; Green function; interpretation; Jemez Lineament; Jemez volcanic field; lower crust; magmatism; mantle; Mohorovicic discontinuity; New Mexico; North America; plate tectonics; rifting; Rio Grande Rift; tomography; United States; upper crust; upper mantle; Valles Caldera; velocity structure; volcanic fields; volcanism ER - TY - JOUR T1 - A numerical model for thermo-hydro-mechanical coupling in fractured rock AN - 52598648; 1998-040677 JF - International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts AU - Bower, K M AU - Zyvoloski, G Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 1201 EP - 1211 PB - Pergamon, Oxford-New York VL - 34 IS - 8 SN - 0148-9062, 0148-9062 KW - United States KW - fractured materials KW - Poisson's ratio KW - numerical models KW - Darcy's law KW - stress KW - statistical analysis KW - Sandoval County New Mexico KW - New Mexico KW - hot dry rocks KW - elastic constants KW - porosity KW - rock mechanics KW - reservoir rocks KW - aquifers KW - fractures KW - finite element analysis KW - geothermal reservoirs KW - heat flow KW - Fenton Hill KW - hydraulic conductivity KW - permeability KW - Young's modulus KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52598648?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.atitle=A+numerical+model+for+thermo-hydro-mechanical+coupling+in+fractured+rock&rft.au=Bower%2C+K+M%3BZyvoloski%2C+G&rft.aulast=Bower&rft.aufirst=K&rft.date=1997-12-01&rft.volume=34&rft.issue=8&rft.spage=1201&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.issn=01489062&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Date issued: 09 Jan 1998 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; Darcy's law; elastic constants; Fenton Hill; finite element analysis; fractured materials; fractures; geothermal reservoirs; heat flow; hot dry rocks; hydraulic conductivity; New Mexico; numerical models; permeability; Poisson's ratio; porosity; reservoir rocks; rock mechanics; Sandoval County New Mexico; statistical analysis; stress; United States; Young's modulus ER - TY - JOUR T1 - Calorimetric measurement of the enthalpy of hydration of clinoptilolite AN - 52244438; 2001-028650 AB - The enthalpy of hydration of natural clinoptilolite was determined by isothermal immersion calorimetry on Ca-, Na- and K-exchanged clinoptilolite (Fish Creek Mountains, Nevada). Heats of immersion of clinoptilolite were determined at initial H (sub 2) O contents ranging from theta = 0.02 to 0.85 (where theta is the ratio [H (sub 2) O content]/[maximum H (sub 2) O content]). The heat of immersion (liquid H (sub 2) O reference state) of Ca-clinoptilolite ranged from -7.5 (theta = 0.87) to -25.7 kJ/mol-H (sub 2) O (theta = 0.19); values for Na-clinoptilolite ranged from -6.3 (theta = 0.85) to -21.8 kJ/mol-H (sub 2) O (theta = 0.11); and values for K-clinoptilolite ranged from -7.7 (theta = 0.80) to -24.6 kJ/mol-H (sub 2) O (theta = 0.02). Linear regression of the calorimetric data provided the following values for the complete heat of immersion (from theta = 0): Ca-clinoptilolite, -30.3 + or - 2.0; Na-clinoptilolite, -23.4 + or - 0.6; and K-clinoptilolite, -22.4 + or - 0.8 kJ/mol-H (sub 2) O. The heat of immersion measurements were compared with the enthalpy of hydration results of Carey and Bish (1996) determined in a thermogravimetric study of the same samples. The heat of immersion data are similar but of smaller magnitude than the values of enthalpy of hydration and are believed to be more accurate because they represent direct measurements of this thermodynamic property. The effect of dehydration of clinoptilolite on the thermal evolution of the potential high-level radioactive waste repository at Yucca Mountain was considered by comparing the amount of energy consumed by clinoptilolite dehydration with the amount of energy necessary to heat rocks lacking hydrous minerals. The extra energy consumed on heating clinoptilolite from 25 to 200 degrees C ranges between 70 and 80% in excess of that required for nondehydrating materials (that is, clinoptilolite acts as a heat sink). These results indicate that accurate thermohydrologic modeling of rock units at Yucca Mountain should consider the thermal effect of dehydration/hydration processes in clinoptilolite and other hydrous minerals, in addition to the water produced/adsorbed during heating/cooling. JF - Clays and Clay Minerals AU - Carey, J William AU - Bish, David L Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 826 EP - 833 PB - Clay Minerals Society, Clarkson, NY VL - 45 IS - 6 SN - 0009-8604, 0009-8604 KW - silicates KW - experimental studies KW - cation exchange capacity KW - clay mineralogy KW - measurement KW - hydration KW - enthalpy KW - clinoptilolite KW - chemical properties KW - zeolite group KW - cations KW - framework silicates KW - TGA data KW - geochemistry KW - calorimetry KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52244438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Calorimetric+measurement+of+the+enthalpy+of+hydration+of+clinoptilolite&rft.au=Carey%2C+J+William%3BBish%2C+David+L&rft.aulast=Carey&rft.aufirst=J&rft.date=1997-12-01&rft.volume=45&rft.issue=6&rft.spage=826&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2001-01-01 N1 - Number of references - 12 N1 - PubXState - NY N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - calorimetry; cation exchange capacity; cations; chemical properties; clay mineralogy; clinoptilolite; enthalpy; experimental studies; framework silicates; geochemistry; hydration; measurement; silicates; TGA data; zeolite group ER - TY - RPRT T1 - Sources of Fe in eolian and soil detritus at Yucca Mountain, Nevada, USA AN - 52039593; 2003-004509 AB - Eolian deposits and adjacent soil horizons at Exile Hill near Yucca Mountain, Nevada, provide a desert environment where the origins of exotic eolian materials can be discerned. Petrographic, chemical, X-ray diffraction, and electron microprobe data allow an assessment of Fe mineral sources. Fe-rich minerals in local rhyolitic tuff bedrock consist of distinctive biotite and amphibole phenocrysts and groundmass Mn-hematites. Although the local tuffs contain only 1% FeO, detrital components of eolian and soil deposits have approximately 3% FeO. Exotic minerals from distant sources provide most of the excess Fe in the surficial deposits. The exotic Fe sources are principally smectite, low-Mn hematite, low-F biotite, and high-Fe amphibole not found in local tuffs. Iron contents and the exotic Fe fraction increase with decreasing grain size, such that the clay fractions have approximately 5-6% FeO, almost all of which is in exotic smectites. The distant origin of these smectites is evident in their high Fe content and distinct Sc/FeO enrichment trends, which differ from the strong local Sc/FeO control defined by coarser soil detritus. Approximate crustal average lanthanide composition in soil and eolian smectites rule out any significant contribution of local smectite derived from tuff alteration. The eolian and soil smectites instead inherit their high Fe content from eolian biotite. JF - Sources of Fe in eolian and soil detritus at Yucca Mountain, Nevada, USA AU - Vaniman, D AU - Chipera, S AU - Bish, D Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 24 VL - LA-UR-98-2843 KW - United States KW - silicates KW - eolian features KW - eluvium KW - deserts KW - radioactive waste KW - mineral composition KW - hematite KW - sediments KW - oxides KW - Yucca Mountain KW - Nevada KW - soils KW - granulometry KW - clastic sediments KW - smectite KW - Nye County Nevada KW - clay minerals KW - loess KW - sheet silicates KW - nuclear facilities KW - unconsolidated materials KW - wind transport KW - waste disposal KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52039593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Vaniman%2C+D%3BChipera%2C+S%3BBish%2C+D&rft.aulast=Vaniman&rft.aufirst=D&rft.date=1997-12-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Sources+of+Fe+in+eolian+and+soil+detritus+at+Yucca+Mountain%2C+Nevada%2C+USA&rft.title=Sources+of+Fe+in+eolian+and+soil+detritus+at+Yucca+Mountain%2C+Nevada%2C+USA&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2003-01-01 N1 - Availability - National Technical Information Service, (703)685-6900, order number DE99001781NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 11th international clay conference, Washington, DC, 199?; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Silica production in the Monterey, California, upwelling system AN - 51951794; 2003-062397 AB - Silica cycling was examined during a major upwelling event in Monterey Bay, California. Strong upwelling-favorable winds blew for 6 d with speeds up to 15 m s (super -1) just prior to the study. A survey of the region near the end of the wind event showed newly upwelled water at the north end of the bay, with silicic acid concentrations up to 29.8 mu M. Silicic acid concentrations decreased to a minimum of 15 mu M along the upwelling plume. Biogenic silica concentrations in the upwelling plume were generally between 2 and 5 mu mol Si liter (super -1) . Specific rates of biogenic silica production were 1.0 d (super -1) downplume. Kinetic experiments indicated that silicic acid concentrations throughout the upwelling plume supported maximal rates of silica production. Silica production rates were approximately 1 mu mol Si liter-1 d (super -1) at the upwelling source, increasing to 7 mu mol liter-1 d (super -1) downplume. The upwelling event was followed by several days of calm winds, creating ideal conditions for a phytoplankton bloom. Integrated biogenic silica concentrations between the surface and the 0.1% light depth during the calm period ranged from 56 to 566 mmol Si m (super -2) , with 8 of 11 stations exhibiting concentrations >100 mmol Si m (super -2) . Specific production rates of biogenic silica were generally >1 d (super -1) , with production rates between 10 and 30 mu mol Si liter (super -1) d (super -1) . Integrated silica production rates averaged 205 mmol Si m (super -2) d (super -1) (range 13-1,140 mmol m (super -2) d (super -1) ), which is four times greater than the average rate observed for other coastal upwelling systems. The maximum value observed (1,140 mmol m (super -2) d (super -1) ) is nearly four times greater than levels ever observed before in the sea. The high silica production rates seemed to result from an inefficient silicate pump. On average, 72% of the biogenic silica produced in the upwelling plume was retained in the surface waters, resulting in biogenic silica concentrations of 6.7-13.7 mu mol Si liter (super -1) at stations where integrated production rates were >200 mmol Si m (super -2) d (super -1) . Ambient silicic acid concentrations in these same waters were generally >8 mu M. Kinetic studies showed that these silicic acid concentrations supported nearly maximal rates of silica production. Substrate limitation of silica production became readily detectable at 5 mu M Si(OH) (sub 4) . By that time, 80 to >90% of the silicic acid and approximately 90% of the nitrate in the upwelled waters had been consumed, indicating that substrate limitation of silica production played only a minor role in controlling the magnitude of both net silica production and new production and new production by diatoms. JF - Limnology and Oceanography AU - Brzezinski, Mark A AU - Phillips, Dennis R AU - Chavez, Francisco P AU - Friederich, Gernot E AU - Dugdale, Richard C Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 1694 EP - 1705 PB - American Society of Limnology and Oceanography, Ann Arbor, MI VL - 42 IS - 8 SN - 0024-3590, 0024-3590 KW - United States KW - upwelling KW - sea water KW - Northeast Pacific KW - suspended materials KW - algae KW - California KW - substrates KW - mineral composition KW - diatoms KW - Monterey Bay KW - silica KW - sediments KW - chemical composition KW - kinetics KW - productivity KW - East Pacific KW - concentration KW - Plantae KW - silicic acid KW - nutrients KW - biogenic processes KW - North Pacific KW - Pacific Ocean KW - algal blooms KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51951794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Limnology+and+Oceanography&rft.atitle=Silica+production+in+the+Monterey%2C+California%2C+upwelling+system&rft.au=Brzezinski%2C+Mark+A%3BPhillips%2C+Dennis+R%3BChavez%2C+Francisco+P%3BFriederich%2C+Gernot+E%3BDugdale%2C+Richard+C&rft.aulast=Brzezinski&rft.aufirst=Mark&rft.date=1997-12-01&rft.volume=42&rft.issue=8&rft.spage=1694&rft.isbn=&rft.btitle=&rft.title=Limnology+and+Oceanography&rft.issn=00243590&rft_id=info:doi/ L2 - http://aslo.org/lo/toc/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 28 N1 - PubXState - MI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - LIOCAH N1 - SubjectsTermNotLitGenreText - algae; algal blooms; biogenic processes; California; chemical composition; concentration; diatoms; East Pacific; kinetics; mineral composition; Monterey Bay; North Pacific; Northeast Pacific; nutrients; Pacific Ocean; Plantae; productivity; sea water; sediments; silica; silicic acid; substrates; suspended materials; United States; upwelling ER - TY - JOUR T1 - Contaminants in the sediments and biota of the western Beaufort Sea AN - 51338343; 2007-128149 JF - NOAA Technical Memorandum NOS ORCA AU - Valette-Siler, Nathalie J AU - Hameedi, M Jawed AU - Efurd, Deward W AU - Robertson, Andrew Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 179 PB - National Oceanic and Atmospheric Administration, National Ocean Service, Seattle, WA KW - Pu-240/Pu-239 KW - chlorinated hydrocarbons KW - benthic taxa KW - isotopes KW - plutonium KW - PCBs KW - organochlorine pesticides KW - marine sediments KW - radioactive isotopes KW - cesium KW - sediments KW - halogenated hydrocarbons KW - Arctic Ocean KW - ecology KW - Beaufort Sea KW - insecticides KW - pollutants KW - isotope ratios KW - alkali metals KW - pollution KW - biota KW - organic compounds KW - Cs-137 KW - metals KW - marine environment KW - DDT KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - trace metals KW - pesticides KW - actinides KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51338343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Valette-Siler%2C+Nathalie+J%3BHameedi%2C+M+Jawed%3BEfurd%2C+Deward+W%3BRobertson%2C+Andrew&rft.aulast=Valette-Siler&rft.aufirst=Nathalie&rft.date=1997-12-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Contaminants+in+the+sediments+and+biota+of+the+western+Beaufort+Sea&rft.title=Contaminants+in+the+sediments+and+biota+of+the+western+Beaufort+Sea&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 220 N1 - PubXState - WA N1 - Document feature - illus. incl. 25 tables N1 - SuppNotes - Includes 3 appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #05110 N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; Arctic Ocean; aromatic hydrocarbons; Beaufort Sea; benthic taxa; biota; cesium; chlorinated hydrocarbons; Cs-137; DDT; ecology; halogenated hydrocarbons; hydrocarbons; insecticides; isotope ratios; isotopes; marine environment; marine sediments; metals; organic compounds; organochlorine pesticides; PCBs; pesticides; plutonium; pollutants; pollution; polycyclic aromatic hydrocarbons; Pu-240/Pu-239; radioactive isotopes; sediments; trace metals ER - TY - JOUR T1 - PC/FRAM: A code for the nondestructive measurement of the isotopic composition of actinides for safeguards applications AN - 16336914; 4298652 AB - The Nuclear Safeguards Program at the Los Alamos National Laboratory has developed and fielded techniques for the gamma-ray spectrometry measurement of the isotopic composition of plutonium and other actinides for over 20 years, ever since Parker and Reilly first proposed a practical method for the measurement of the arbitrary sample. Their procedures, incorporating internal (to the measured gamma-ray spectrum) or 'intrinsic' self-determination of the relative efficiency function of the sample-detector measurement system, are widely applied today. The PC/FRAM code is the most recent and most highly developed Los Alamos code developed specifically for the nuclear safeguards applications of this technique. We will describe the measurement principles that allow accurate measurements to be taken on samples of arbitrary size, shape, and measurement geometry - and of arbitrary physical and chemical composition - through the use of known nuclear decay data (half-lives and branching intensities). Subsequently, we will describe the analysis methodology, which is driven by an easily edited parameter file that frees the user from dependence on a dedicated programmer for analyses of special cases. This methodology relies on internal gamma-ray peaks from the spectrum under analysis to self-calibrate the unknown spectrum for energy and peak shape (energy dependence of full width at half maximum (FWHM) and tailing parameters). The program uses these parameters to calculate response functions that are fit to the analysis peaks requested in the parameter file. The structure of the code and its Windows 3.1 user interface allows use with equal ease by the experienced spectroscopist or operator-level personnel in a working facility. The code has been applied primarily to the analysis of gamma-ray spectra from plutonium with the isotopic results used to calculate the parameters super(240)Pu sub(eff) for interpretation of neutron coincidence counting assays and P sub(eff) (W/g Pu) for the interpretation of calorimetry measurements. These measurement combinations form the backbone of nondestructive assay measurements for materials control and accountability both domestically and internationally. We will present examples of the results of measurements of these parameters with PC/FRAM and discuss the wide range of materials measured, including uranium samples and samples with lead shielding. JF - Applied Radiation and Isotopes AU - Sampson, TE AU - Kelley, T A AD - Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1997/12// PY - 1997 DA - Dec 1997 SP - 1543 EP - 1548 VL - 48 IS - 10-12 SN - 0969-8043, 0969-8043 KW - acticides KW - nondestructive testing KW - radioisotopes KW - Health & Safety Science Abstracts KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16336914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Radiation+and+Isotopes&rft.atitle=PC%2FFRAM%3A+A+code+for+the+nondestructive+measurement+of+the+isotopic+composition+of+actinides+for+safeguards+applications&rft.au=Sampson%2C+TE%3BKelley%2C+T+A&rft.aulast=Sampson&rft.aufirst=TE&rft.date=1997-12-01&rft.volume=48&rft.issue=10-12&rft.spage=1543&rft.isbn=&rft.btitle=&rft.title=Applied+Radiation+and+Isotopes&rft.issn=09698043&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - MCNP super(TM) simulations for identifying environmental contaminants using prompt gamma rays from thermal neutron capture reactions AN - 16336876; 4298648 AB - The primary purpose of the Multispectral Neutron Logging (MSN) project was to assess the effectiveness of existing neutron-induced spectral gamma-ray logging techniques for identifying environmental contaminants along boreholes, to further improve the technology and to transfer that technology to industry. The logging instrument incorporated a pulsed 14 MeV neutron source and HPGe detector. Gamma-ray spectra from thermal neutron capture reactions were used to identify contaminants in the borehole environment. This type of technique complements physical sampling and is useful in environmental restoration projects where characterization of contaminated sites is required and long-term monitoring may be needed. We used an enhanced version of the Monte Carlo N-Particle computer code (MCNP super(TM)) to investigate many more potential contaminants than could be accomplished experimentally. MCNP was tested and benchmarked with experimental data for Cl provided by our collaborators and experimental data for Cl, Cd, Sm, Gd and Hg obtained as part of this project. A number of enhancements were developed for MCNP as a result of this project, some of which will be part of the next major code release. The results from the benchmarking effort, estimates of minimum detection thresholds for our instrument based on MCNP simulations, and some of the MCNP code enhancements will be discussed. JF - Applied Radiation and Isotopes AU - Frankle, S C AU - Conaway, J G AD - Los Alamos National Laboratory, PO Box 1663, MS B226, Los Alamos, NM 87545, USA Y1 - 1997/12// PY - 1997 DA - Dec 1997 SP - 1337 EP - 1341 VL - 48 IS - 10-12 SN - 0969-8043, 0969-8043 KW - Pollution Abstracts KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16336876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Radiation+and+Isotopes&rft.atitle=MCNP+super%28TM%29+simulations+for+identifying+environmental+contaminants+using+prompt+gamma+rays+from+thermal+neutron+capture+reactions&rft.au=Frankle%2C+S+C%3BConaway%2C+J+G&rft.aulast=Frankle&rft.aufirst=S&rft.date=1997-12-01&rft.volume=48&rft.issue=10-12&rft.spage=1337&rft.isbn=&rft.btitle=&rft.title=Applied+Radiation+and+Isotopes&rft.issn=09698043&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Assessing uncertainty due to elevation error in a landslide susceptibility model AN - 1257737858; 17424117 AB - A landslide susceptibility model, employing a digital elevation model (DEM) and geological data, was used in a GIS to predict slope stability in a region of the H J Andrews Long-Term Research Forest, located in the Western Cascade Range in Oregon, USA. To evaluate the contribution of error in elevation to the uncertainty of the final output of the model, several different, but equally probable, versions of the input DEM were created through the addition of random, spatially autocorrelated noise (error) files. The realized DEMs were then processed to produce a family of slope stability maps from which the uncertainty effects of elevation error upon landslide susceptibility could be assessed. The ability to assess this uncertainty has the potential to help us better understand the inherent strengths and weaknesses of applying digital data and spatial information systems to this application, and to facilitate improved natural resource management decisions in relation to timber harvesting and slope stability problems. JF - Transactions in GIS AU - Murillo, Michelle L AU - Hunter, Gary J AD - Los Alamos National Laboratory, PO Box 1663, XCM-MS F645, TA3 / SM43 / 13S, Los Alamos, New Mexico 87545, USA. Y1 - 1997/12// PY - 1997 DA - Dec 1997 SP - 289 EP - 298 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 2 IS - 4 SN - 1361-1682, 1361-1682 KW - Sustainability Science Abstracts KW - Landslides KW - INE, USA, Oregon KW - Natural resources management KW - USA, Cascade Mts. KW - Noise levels KW - Forests KW - Geology KW - Geographic information systems KW - Harvesting KW - Information systems KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1257737858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+in+GIS&rft.atitle=Assessing+uncertainty+due+to+elevation+error+in+a+landslide+susceptibility+model&rft.au=Murillo%2C+Michelle+L%3BHunter%2C+Gary+J&rft.aulast=Murillo&rft.aufirst=Michelle&rft.date=1997-12-01&rft.volume=2&rft.issue=4&rft.spage=289&rft.isbn=&rft.btitle=&rft.title=Transactions+in+GIS&rft.issn=13611682&rft_id=info:doi/10.1111%2Fj.1467-9671.1997.tb00058.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-12-01 N1 - Number of references - 11 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Landslides; Natural resources management; Noise levels; Forests; Geology; Geographic information systems; Harvesting; Information systems; INE, USA, Oregon; USA, Cascade Mts. DO - http://dx.doi.org/10.1111/j.1467-9671.1997.tb00058.x ER - TY - JOUR T1 - Time dependence of elastic modulus from nonlinear excitation in longitudinal resonance experiments AN - 52601461; 1998-035708 JF - Eos, Transactions, American Geophysical Union AU - ten Cate, J A AU - Shankland, T J AU - Anonymous Y1 - 1997/11/18/ PY - 1997 DA - 1997 Nov 18 SP - 676 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - fractured materials KW - experimental studies KW - strain KW - nonlinear materials KW - elastic constants KW - deformation KW - porosity KW - rock mechanics KW - laboratory studies KW - resonance KW - cracks KW - time factor KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52601461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Time+dependence+of+elastic+modulus+from+nonlinear+excitation+in+longitudinal+resonance+experiments&rft.au=ten+Cate%2C+J+A%3BShankland%2C+T+J%3BAnonymous&rft.aulast=ten+Cate&rft.aufirst=J&rft.date=1997-11-18&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=676&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2014-03-14 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - cracks; deformation; elastic constants; experimental studies; fractured materials; laboratory studies; nonlinear materials; porosity; resonance; rock mechanics; strain; time factor ER - TY - JOUR T1 - Large-scale lateral heat and fluid transport within the ocean crust AN - 52600993; 1998-035676 JF - Eos, Transactions, American Geophysical Union AU - Rosenberg, Nina D AU - Fisher, Andrew T AU - Stein, Joshua S AU - Anonymous Y1 - 1997/11/18/ PY - 1997 DA - 1997 Nov 18 SP - 672 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - upper crust KW - oceanic crust KW - East Pacific KW - sea water KW - Northeast Pacific KW - statistical analysis KW - hydrothermal vents KW - fluid dynamics KW - two-dimensional models KW - finite element analysis KW - Mid-Atlantic Ridge KW - Leg 168 KW - water-rock interaction KW - North Pacific KW - Juan de Fuca Ridge KW - heat flow KW - Pacific Ocean KW - Ocean Drilling Program KW - ocean floors KW - crust KW - Atlantic Ocean KW - mid-ocean ridges KW - 18:Solid-earth geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52600993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Large-scale+lateral+heat+and+fluid+transport+within+the+ocean+crust&rft.au=Rosenberg%2C+Nina+D%3BFisher%2C+Andrew+T%3BStein%2C+Joshua+S%3BAnonymous&rft.aulast=Rosenberg&rft.aufirst=Nina&rft.date=1997-11-18&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=672&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2016-04-14 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; crust; East Pacific; finite element analysis; fluid dynamics; heat flow; hydrothermal vents; Juan de Fuca Ridge; Leg 168; Mid-Atlantic Ridge; mid-ocean ridges; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; oceanic crust; Pacific Ocean; sea water; statistical analysis; two-dimensional models; upper crust; water-rock interaction ER - TY - JOUR T1 - Assessment of hydraulic conductivity of tuff and fracture fillings using proton NMR AN - 1492584220; 2014-004789 JF - Eos, Transactions, American Geophysical Union AU - Hinedi, Zeina R AU - Graham, Robert C AU - Chang, Andrew C AU - Newman, Brent D AU - Anonymous Y1 - 1997/11/18/ PY - 1997 DA - 1997 Nov 18 SP - 240 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - solute transport KW - hazardous waste KW - volcanic rocks KW - pollutants KW - igneous rocks KW - saturated materials KW - NMR spectra KW - cores KW - ground water KW - aquifers KW - pyroclastics KW - transport KW - tuff KW - spectra KW - hydraulic conductivity KW - waste disposal KW - Nevada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492584220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Assessment+of+hydraulic+conductivity+of+tuff+and+fracture+fillings+using+proton+NMR&rft.au=Hinedi%2C+Zeina+R%3BGraham%2C+Robert+C%3BChang%2C+Andrew+C%3BNewman%2C+Brent+D%3BAnonymous&rft.aulast=Hinedi&rft.aufirst=Zeina&rft.date=1997-11-18&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=240&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-01-30 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; cores; ground water; hazardous waste; hydraulic conductivity; igneous rocks; Nevada; NMR spectra; pollutants; pyroclastics; saturated materials; solute transport; spectra; transport; tuff; United States; volcanic rocks; waste disposal ER - TY - JOUR T1 - Microsphere transport and attenuation at laboratory and field scales AN - 1492584119; 2014-004730 JF - Eos, Transactions, American Geophysical Union AU - Reimus, P W AU - Becker, M W AU - Vilks, P AU - Anonymous Y1 - 1997/11/18/ PY - 1997 DA - 1997 Nov 18 SP - 231 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - laboratory studies KW - contaminant plumes KW - transport KW - fluorescence KW - pollutants KW - tracers KW - pollution KW - carboxylates KW - ground water KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492584119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Microsphere+transport+and+attenuation+at+laboratory+and+field+scales&rft.au=Reimus%2C+P+W%3BBecker%2C+M+W%3BVilks%2C+P%3BAnonymous&rft.aulast=Reimus&rft.aufirst=P&rft.date=1997-11-18&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-01-30 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - carboxylates; contaminant plumes; field studies; fluorescence; ground water; laboratory studies; pollutants; pollution; tracers; transport ER - TY - JOUR T1 - Characterization of fracture-matrix interaction along fast pathways in welded tuff, Yucca Mountain, Nevada AN - 1492583856; 2014-004698 JF - Eos, Transactions, American Geophysical Union AU - Levy, S S AU - Fabryka-Martin, J T AU - Sweetkind, Donald S AU - Anonymous Y1 - 1997/11/18/ PY - 1997 DA - 1997 Nov 18 SP - 225 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - fractured materials KW - volcanic rocks KW - isotopes KW - igneous rocks KW - halogens KW - unsaturated zone KW - fluid dynamics KW - radioactive isotopes KW - tracers KW - tuff KW - nuclear explosions KW - Yucca Mountain KW - Nevada KW - chlorine KW - welded tuff KW - explosions KW - Cl-36 KW - Nye County Nevada KW - flows KW - pyroclastics KW - infiltration KW - Sundance Fault KW - fault zones KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492583856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Characterization+of+fracture-matrix+interaction+along+fast+pathways+in+welded+tuff%2C+Yucca+Mountain%2C+Nevada&rft.au=Levy%2C+S+S%3BFabryka-Martin%2C+J+T%3BSweetkind%2C+Donald+S%3BAnonymous&rft.aulast=Levy&rft.aufirst=S&rft.date=1997-11-18&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-01-30 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chlorine; Cl-36; explosions; fault zones; flows; fluid dynamics; fractured materials; halogens; igneous rocks; infiltration; isotopes; Nevada; nuclear explosions; Nye County Nevada; pyroclastics; radioactive isotopes; Sundance Fault; tracers; tuff; United States; unsaturated zone; volcanic rocks; welded tuff; Yucca Mountain ER - TY - JOUR T1 - Tsunami generated by the late Bronze Age volcanic eruption of Santorini, Greece AN - 904460210; 2011-100845 JF - Eos, Transactions, American Geophysical Union AU - McCoy, F W AU - Heiken, G AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 636 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - tsunamis KW - volcanic rocks KW - Greece KW - geologic hazards KW - igneous rocks KW - Europe KW - Southern Europe KW - Cenozoic KW - volcanic features KW - pyroclastic flows KW - volcanism KW - Cyclades KW - Thera KW - sedimentation KW - Aegean Islands KW - East Mediterranean KW - calderas KW - pyroclastics KW - eruptions KW - natural hazards KW - Bronze Age KW - Mediterranean Sea KW - Greek Aegean Islands KW - Mediterranean region KW - Aegean Sea KW - catastrophes KW - 24:Quaternary geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904460210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Tsunami+generated+by+the+late+Bronze+Age+volcanic+eruption+of+Santorini%2C+Greece&rft.au=McCoy%2C+F+W%3BHeiken%2C+G%3BAnonymous&rft.aulast=McCoy&rft.aufirst=F&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=636&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Aegean Islands; Aegean Sea; Bronze Age; calderas; catastrophes; Cenozoic; Cyclades; East Mediterranean; eruptions; Europe; geologic hazards; Greece; Greek Aegean Islands; igneous rocks; Mediterranean region; Mediterranean Sea; natural hazards; pyroclastic flows; pyroclastics; sedimentation; Southern Europe; Thera; tsunamis; volcanic features; volcanic rocks; volcanism ER - TY - JOUR T1 - Mitochondrial function in oncogene-transfected rat fibroblasts isolated from multicellular spheroids. AN - 79425338; 9374633 AB - Two mitochondrion-specific fluorochromes, 10-N-nonyl acridine orange (NAO) and rhodamine 123 (Rh123), were used to determine the mechanism responsible for alterations in energy metabolism of transformed rat embryo fibroblast cells isolated from different locations within multicellular spheroids. Accumulation of Rh123 depends on intact mitochondrial membrane potential, whereas NAO is taken up by mitochondria independently of their function and thus represents mitochondrial distribution only. A reproducible selective dissociation procedure was used to isolate cells from different locations within the spheroids. After isolation, cells were simultaneously stained with one mitochondrial stain and the DNA dye Hoechst 33342, and several parameters, including cell volume, were monitored via multilaser-multiparameter flow cytometry. Our data clearly show a decrease in the uptake of Rh123 in cells from the periphery to the inner regions of the tumor spheroids, reflecting a persistent alteration in mitochondrial function. However, NAO staining experiments showed no reduction in the total mitochondrial mass per unit cell volume. Because cells were exposed to stain under uniform conditions after isolation from the spheroid, these data indicate the downregulation of mitochondrial function is associated with cell quiescence rather than a transient effect of reduced nutrient availability. This result, which is in accordance with data from two other cell lines (EMT6 and 9L), might reflect a general phenomenon in multicellular spheroids, supporting the hypothesis that quiescent cells in the innermost viable spheroid layer stably reduce their mitochondrial function, presumably to compensate for lower nutrient supply and/or decreased energy demand. JF - The American journal of physiology AU - Kunz-Schughart, L A AU - Habbersett, R C AU - Freyer, J P AD - Life Sciences Division, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1997/11// PY - 1997 DA - November 1997 SP - C1487 EP - C1495 VL - 273 IS - 5 Pt 1 SN - 0002-9513, 0002-9513 KW - Benzimidazoles KW - 0 KW - Fluorescent Dyes KW - Rhodamines KW - Rhodamine 123 KW - 1N3CZ14C5O KW - N(10)-nonylacridine orange KW - 78125-98-1 KW - Acridine Orange KW - F30N4O6XVV KW - bisbenzimide ethoxide trihydrochloride KW - P976261J69 KW - Index Medicus KW - Animals KW - Acridine Orange -- analogs & derivatives KW - Acridine Orange -- pharmacokinetics KW - Fibroblasts KW - Rats KW - Rats, Inbred F344 KW - Transfection KW - Kinetics KW - Cell Culture Techniques -- methods KW - Flow Cytometry KW - Cell Aggregation KW - Cell Line KW - Rhodamines -- pharmacokinetics KW - Cell Division KW - Mitochondria -- metabolism KW - Cell Transformation, Neoplastic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79425338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+journal+of+physiology&rft.atitle=Mitochondrial+function+in+oncogene-transfected+rat+fibroblasts+isolated+from+multicellular+spheroids.&rft.au=Kunz-Schughart%2C+L+A%3BHabbersett%2C+R+C%3BFreyer%2C+J+P&rft.aulast=Kunz-Schughart&rft.aufirst=L&rft.date=1997-11-01&rft.volume=273&rft.issue=5+Pt+1&rft.spage=C1487&rft.isbn=&rft.btitle=&rft.title=The+American+journal+of+physiology&rft.issn=00029513&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-12-17 N1 - Date created - 1997-12-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Atmospheric/hydrologic models for the Rio Grande Basin; effects of streamflow variability on aquifer recharge AN - 762681558; 2010-091102 JF - Eos, Transactions, American Geophysical Union AU - Soll, W E AU - Turin, H J AU - Costigan, K E AU - Bossert, J E AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 203 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Rio Grande KW - hydrology KW - water supply KW - terrestrial environment KW - Bernalillo County New Mexico KW - arid environment KW - surface water KW - atmosphere KW - New Mexico KW - aquifers KW - recharge KW - Albuquerque New Mexico KW - runoff KW - climate effects KW - Colorado KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/762681558?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Atmospheric%2Fhydrologic+models+for+the+Rio+Grande+Basin%3B+effects+of+streamflow+variability+on+aquifer+recharge&rft.au=Soll%2C+W+E%3BTurin%2C+H+J%3BCostigan%2C+K+E%3BBossert%2C+J+E%3BAnonymous&rft.aulast=Soll&rft.aufirst=W&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Albuquerque New Mexico; aquifers; arid environment; atmosphere; Bernalillo County New Mexico; climate effects; Colorado; hydrology; New Mexico; recharge; Rio Grande; runoff; surface water; terrestrial environment; United States; water supply ER - TY - JOUR T1 - Numerical simulation of flow and transport in models with fractal heterogeneity AN - 762681225; 2010-091143 JF - Eos, Transactions, American Geophysical Union AU - Travis, Bryan AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 214 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - physical properties KW - numerical analysis KW - hydrodynamics KW - algorithms KW - heterogeneity KW - simulation KW - rocks KW - fractals KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/762681225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Numerical+simulation+of+flow+and+transport+in+models+with+fractal+heterogeneity&rft.au=Travis%2C+Bryan%3BAnonymous&rft.aulast=Travis&rft.aufirst=Bryan&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=214&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - algorithms; fractals; heterogeneity; hydrodynamics; numerical analysis; permeability; physical properties; rocks; simulation; soils ER - TY - JOUR T1 - Automated grid generation used in grid resolution studies for groundwater flow and transport AN - 762680899; 2010-091144 JF - Eos, Transactions, American Geophysical Union AU - Bower, Kathleen M AU - Gable, Carl W AU - Zyvoloski, George A AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 214 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - numerical models KW - heterogeneous materials KW - transport KW - three-dimensional models KW - saturated materials KW - hydrodynamics KW - ground water KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/762680899?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Automated+grid+generation+used+in+grid+resolution+studies+for+groundwater+flow+and+transport&rft.au=Bower%2C+Kathleen+M%3BGable%2C+Carl+W%3BZyvoloski%2C+George+A%3BAnonymous&rft.aulast=Bower&rft.aufirst=Kathleen&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=214&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - ground water; heterogeneous materials; hydrodynamics; numerical models; saturated materials; three-dimensional models; transport ER - TY - JOUR T1 - Numerical solutions to statistical moment equations of groundwater flow in heterogeneous aquifers AN - 762675758; 2010-091114 JF - Eos, Transactions, American Geophysical Union AU - Zhang, Dongxiao AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 206 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - mathematical methods KW - steady-state processes KW - statistical analysis KW - hydrodynamics KW - equations KW - heterogeneity KW - ground water KW - aquifers KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/762675758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Numerical+solutions+to+statistical+moment+equations+of+groundwater+flow+in+heterogeneous+aquifers&rft.au=Zhang%2C+Dongxiao%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=206&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; equations; ground water; heterogeneity; hydrodynamics; mathematical methods; statistical analysis; steady-state processes ER - TY - JOUR T1 - Examining lamb waves generation from small surface explosions AN - 742915891; 2010-051162 JF - Eos, Transactions, American Geophysical Union AU - ReVelle, Douglas O AU - Kulichkov, Sergey N AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 138 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - theoretical studies KW - Commonwealth of Independent States KW - stratosphere KW - Lamb waves KW - explosions KW - atmosphere KW - elastic waves KW - seismic waves KW - Russian Federation KW - infrasound KW - acoustical waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742915891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Examining+lamb+waves+generation+from+small+surface+explosions&rft.au=ReVelle%2C+Douglas+O%3BKulichkov%2C+Sergey+N%3BAnonymous&rft.aulast=ReVelle&rft.aufirst=Douglas&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=138&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical waves; atmosphere; Commonwealth of Independent States; elastic waves; explosions; infrasound; Lamb waves; Russian Federation; seismic waves; stratosphere; theoretical studies ER - TY - JOUR T1 - Infrasound from the October 4, 1996 California Bolide; source location and energy estimates AN - 742911232; 2010-051160 JF - Eos, Transactions, American Geophysical Union AU - Whitaker, Rodney W AU - Armstrong, William T AU - ReVelle, Douglas O AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 138 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - pressure KW - bolides KW - atmosphere KW - frequency KW - sonic boom KW - signals KW - meteors KW - California KW - fireballs KW - infrasound KW - energy KW - arrays KW - acoustical waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742911232?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Infrasound+from+the+October+4%2C+1996+California+Bolide%3B+source+location+and+energy+estimates&rft.au=Whitaker%2C+Rodney+W%3BArmstrong%2C+William+T%3BReVelle%2C+Douglas+O%3BAnonymous&rft.aulast=Whitaker&rft.aufirst=Rodney&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=138&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical waves; arrays; atmosphere; bolides; California; energy; fireballs; frequency; infrasound; meteors; pressure; signals; sonic boom; United States ER - TY - JOUR T1 - The observation of earthquakes by infrasound AN - 742911193; 2010-051158 JF - Eos, Transactions, American Geophysical Union AU - Mutschlecner, J Paul AU - Whitaker, Rodney W AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 137 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - magnitude KW - frequency KW - stratosphere KW - multiple reflections KW - ground motion KW - propagation KW - focus KW - infrasound KW - seismic networks KW - earthquakes KW - acoustical waves KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742911193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+observation+of+earthquakes+by+infrasound&rft.au=Mutschlecner%2C+J+Paul%3BWhitaker%2C+Rodney+W%3BAnonymous&rft.aulast=Mutschlecner&rft.aufirst=J&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical waves; amplitude; earthquakes; focus; frequency; ground motion; infrasound; magnitude; multiple reflections; propagation; seismic networks; stratosphere ER - TY - JOUR T1 - Scattering of elastic waves in 2-D composite media; II, Waveforms and spectra AN - 52644158; 1998-017560 AB - The boundary integral representation of the complete seismic wavefield in two-dimensional composite media characterised by the distribution of many cavities (Paper I in this issue) is used to study the waveforms and spectra of the scattered wavefield for three models of media heterogeneity, upon the incidence of P and S plane waves and line sources. First, the case of one circular cavity and S primary waves shows that the scattered wavefield is composed mainly of S waves, and that S-P scattering can be ignored in any frequency range for all forward scattering angles (scattering angle theta measured clockwise with respect to the direction of propagation of the primary wave). The spectra of forward scattering computed for theta congruent to 0 degrees resemble the spectrum predicted by the Born approximation for acoustic or scalar waves for theta = 0 degrees : of small amplitudes for small values of non-dimensional frequency kd (k is the wavenumber and d is the cavity diameter), increasing with kd, up to kd congruent to 2, and becoming constant for larger values of kd. The spectra for backward scattering (theta congruent to 180 degrees ) behave similarly, showing amplitudes as large as those computed for the forward cases. The non-isotropic pattern of scattering predicted by analytical solutions is also confirmed. In the case of P primary waves, P-S scattering appears to be significantly stronger than P-P scattering for most scattering angles, except for theta congruent to 0 degrees and theta congruent to 180 degrees . The computation of synthetic seismograms for models with many cavities show scattered waves of low frequency corresponding to wavelengths much larger than the size of the cavities, as well as those of high frequency due to multiple reflections and conversions at the boundaries of the cavities. A cluster of 20 cavities randomly distributed within a small region produces well-defined low frequency waves that appear to be associated with the presence of one low-velocity heterogeneous body, or soft inclusion, represented by the whole cluster. The case of 50 cavities randomly distributed within a horizontally extended region (of narrow thickness) shows coda-like wave arrivals, particularly strong in the horizontal component. Also in this case, nearly horizontally incident plane waves produce low frequency scattered waves of large amplitudes. It appears that while in the long-wavelength limit this model synthesises a coherent wave corresponding to reflection upon a horizontal interface, towards the short-wavelength limit the scattered waves show a rather complex, incoherent pattern immediately after the arrival of the incident wave, as if the region were a transitional zone of effective thickness. The analysis presented in this paper suggests that if the wavelengths are much larger than the size of the cavities, our representation of random media can be used to represent regional heterogeneity in the earth's crust, associated with observed seismic scattering phenomena. JF - Physics of the Earth and Planetary Interiors AU - Yomogida, Kiyoshi AU - Benites, Rafael AU - Roberts, Peter M AU - Fehler, Michael A2 - Sato, Haruo A2 - Korn, Michael A2 - Scherbaum, Frank Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 175 EP - 192 PB - Elsevier, Amsterdam VL - 104 IS - 1-3 SN - 0031-9201, 0031-9201 KW - seismograms KW - P-waves KW - body waves KW - elastic waves KW - waveforms KW - equations KW - two-dimensional models KW - propagation KW - seismic waves KW - wave dispersion KW - interpretation KW - S-waves KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52644158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+of+the+Earth+and+Planetary+Interiors&rft.atitle=Scattering+of+elastic+waves+in+2-D+composite+media%3B+II%2C+Waveforms+and+spectra&rft.au=Yomogida%2C+Kiyoshi%3BBenites%2C+Rafael%3BRoberts%2C+Peter+M%3BFehler%2C+Michael&rft.aulast=Yomogida&rft.aufirst=Kiyoshi&rft.date=1997-11-01&rft.volume=104&rft.issue=1-3&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Stochastic seismic wave fields and realistic media N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 31 N1 - Document feature - illus. N1 - SuppNotes - Special issue N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - body waves; crust; elastic waves; equations; interpretation; P-waves; propagation; S-waves; seismic waves; seismograms; two-dimensional models; wave dispersion; waveforms ER - TY - JOUR T1 - Scattering of elastic waves in 2-D composite media; I, Theory and test AN - 52626943; 1998-017559 AB - Localised regions in the earth's crust exhibiting complex variations of density and seismic wave velocities can be represented by random distribution of cavities, in a manner described by Matsunami [Matsunami, K., 1983, Scattering of P waves by random heterogeneities with sizes comparable to the wavelength; Bull. Disas. Prev. Res. Inst., Kyoto Univ., 33, 129-145] for two-dimensional (2-D) media. In order to study the multiple scattering of seismic waves propagating in such media, we develop an indirect boundary integral scheme with discretisation based on wave source distribution around the cavities. Numerical experiments using seven generic 2-D models and incident P, SV and SH plane waves, as well as explosive line sources, are carried out. These experiments are intended to both assess the accuracy of the method, and to examine the character of attenuation of the direct wave, coda waveforms, and travel time features that emerge from pure scattering (no intrinsic attenuation), computed in all cases for wavelengths comparable to the size of the heterogeneities. The wavefield computed for one cavity shows a remarkable diffracted wave that creeps around it, for all the incident waves, regardless of the shape of its cross-section. This wave contributes significantly to the multiple scattering caused by the direct and all reflected/converted waves in the presence of many cavities. For complex regions defined by random distribution of cavities, an explosive line source located below the region produces slight amplification of the horizontal component of the wavefield, apparently due to constructive interference, at observation points above the region, while the vertical component is strongly attenuated. The durations of the seismograms are about the same for observation points located towards both ends of the region. These results appear to be reversed when the source is above the region. In this case, the horizontal component is strongly attenuated, and the duration of the seismograms is significantly larger at observation points on the side of the incidence than at the opposite side, suggesting the dominant effect of backscattering. The amplitudes of the multiple scattered phases, the attenuation of the direct wave and the duration of the seismograms, appear to be larger when the line source is very near or within the heterogeneous region, than when it is outside. For the same geometry of the scattering region, the seismograms appear to be more complex and amplitudes of multiple scattered phases larger for a plane SH wave in a half-space. JF - Physics of the Earth and Planetary Interiors AU - Benites, Rafael A AU - Roberts, Peter M AU - Yomogida, Kiyoshi AU - Fehler, Michael A2 - Sato, Haruo A2 - Korn, Michael A2 - Scherbaum, Frank Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 161 EP - 173 PB - Elsevier, Amsterdam VL - 104 IS - 1-3 SN - 0031-9201, 0031-9201 KW - seismograms KW - body waves KW - density KW - guided waves KW - coda waves KW - elastic waves KW - equations KW - two-dimensional models KW - attenuation KW - theoretical studies KW - surface waves KW - SH-waves KW - seismic waves KW - interpretation KW - S-waves KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52626943?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+of+the+Earth+and+Planetary+Interiors&rft.atitle=Scattering+of+elastic+waves+in+2-D+composite+media%3B+I%2C+Theory+and+test&rft.au=Benites%2C+Rafael+A%3BRoberts%2C+Peter+M%3BYomogida%2C+Kiyoshi%3BFehler%2C+Michael&rft.aulast=Benites&rft.aufirst=Rafael&rft.date=1997-11-01&rft.volume=104&rft.issue=1-3&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Stochastic seismic wave fields and realistic media N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 26 N1 - Document feature - illus. N1 - SuppNotes - Special issue N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - amplitude; attenuation; body waves; coda waves; density; elastic waves; equations; guided waves; interpretation; S-waves; seismic waves; seismograms; SH-waves; surface waves; theoretical studies; two-dimensional models ER - TY - JOUR T1 - High-spin to low-spin transition in Fe (sub 0.94) O wustite at 90 GPa AN - 52615269; 1998-023870 JF - Eos, Transactions, American Geophysical Union AU - Pasternak, Moshe P AU - Taylor, R Dean AU - Jeanloz, Raymond AU - Li, Xiaoyuan AU - Nguyen, Jeffrey H AU - McCammon, Catherine A AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 743 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - experimental studies KW - pressure KW - mantle KW - crystal structure KW - new data KW - Mossbauer spectroscopy KW - temperature KW - laboratory studies KW - volume KW - oxides KW - transformations KW - wustite KW - spectroscopy KW - P-T conditions KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52615269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=High-spin+to+low-spin+transition+in+Fe+%28sub+0.94%29+O+wustite+at+90+GPa&rft.au=Pasternak%2C+Moshe+P%3BTaylor%2C+R+Dean%3BJeanloz%2C+Raymond%3BLi%2C+Xiaoyuan%3BNguyen%2C+Jeffrey+H%3BMcCammon%2C+Catherine+A%3BAnonymous&rft.aulast=Pasternak&rft.aufirst=Moshe&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=743&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - crystal structure; experimental studies; laboratory studies; mantle; Mossbauer spectroscopy; new data; oxides; P-T conditions; pressure; spectroscopy; temperature; transformations; volume; wustite ER - TY - JOUR T1 - Metamorphic microdiamond; a specific technique for TEM foil preparation AN - 52614722; 1998-023837 JF - Eos, Transactions, American Geophysical Union AU - Alani, Reza AU - Dobrzhinetskaya, Larissa AU - Green, Harry W, II AU - Mitchell, Terence AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 738 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - transmission electron microscopy KW - chemical analysis KW - preparation KW - crystal growth KW - native elements KW - metamorphism KW - new methods KW - Central Asia KW - Commonwealth of Independent States KW - Kokchetav Kazakhstan KW - diamond KW - Kazakhstan KW - Asia KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52614722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Metamorphic+microdiamond%3B+a+specific+technique+for+TEM+foil+preparation&rft.au=Alani%2C+Reza%3BDobrzhinetskaya%2C+Larissa%3BGreen%2C+Harry+W%2C+II%3BMitchell%2C+Terence%3BAnonymous&rft.aulast=Alani&rft.aufirst=Reza&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=738&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; Central Asia; chemical analysis; Commonwealth of Independent States; crystal growth; diamond; Kazakhstan; Kokchetav Kazakhstan; metamorphism; native elements; new methods; preparation; transmission electron microscopy ER - TY - JOUR T1 - Variable viscosity thermal convection in a thick spherical shell AN - 52605042; 1998-035598 JF - Eos, Transactions, American Geophysical Union AU - Yang, Woo-Sun AU - Baumgardner, John R AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 661 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - statistical analysis KW - Prandtl number KW - mantle KW - convection KW - toroidal mode KW - lower mantle KW - finite element analysis KW - theoretical studies KW - Rayleigh number KW - viscosity KW - rheology KW - thermal effects KW - spherical models KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52605042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Variable+viscosity+thermal+convection+in+a+thick+spherical+shell&rft.au=Yang%2C+Woo-Sun%3BBaumgardner%2C+John+R%3BAnonymous&rft.aulast=Yang&rft.aufirst=Woo-Sun&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=661&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; finite element analysis; lower mantle; mantle; Prandtl number; Rayleigh number; rheology; spherical models; statistical analysis; theoretical studies; thermal effects; toroidal mode; viscosity ER - TY - JOUR T1 - Inner core anisotropy; texture as an alternative to a single crystal AN - 52601886; 1998-037907 JF - Eos, Transactions, American Geophysical Union AU - Baumgardner, J R AU - Tome, C N AU - Lebensohn, R AU - Wenk, H R AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 458 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - three-dimensional models KW - strain KW - textures KW - statistical analysis KW - data processing KW - convection KW - harmonics KW - preferred orientation KW - finite element analysis KW - digital simulation KW - TERRA KW - core KW - particulate materials KW - inner core KW - anisotropy KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52601886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Inner+core+anisotropy%3B+texture+as+an+alternative+to+a+single+crystal&rft.au=Baumgardner%2C+J+R%3BTome%2C+C+N%3BLebensohn%2C+R%3BWenk%2C+H+R%3BAnonymous&rft.aulast=Baumgardner&rft.aufirst=J&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=458&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anisotropy; convection; core; data processing; digital simulation; finite element analysis; harmonics; inner core; particulate materials; preferred orientation; statistical analysis; strain; TERRA; textures; three-dimensional models ER - TY - JOUR T1 - Use of propagation path corrections to improve regional event locations in Western Canada AN - 52601527; 1998-037822 JF - Eos, Transactions, American Geophysical Union AU - Cogbill, Allen H AU - Steck, Lee K AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 445 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - P-waves KW - body waves KW - Far East KW - explosions KW - elastic waves KW - seismic sources KW - teleseismic signals KW - Canada KW - traveltime residuals KW - Lop Nor China KW - Western Canada KW - propagation KW - seismic waves KW - corrections KW - nuclear explosions KW - Asia KW - arrival time KW - earthquakes KW - coordinates KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52601527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Use+of+propagation+path+corrections+to+improve+regional+event+locations+in+Western+Canada&rft.au=Cogbill%2C+Allen+H%3BSteck%2C+Lee+K%3BAnonymous&rft.aulast=Cogbill&rft.aufirst=Allen&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=445&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - arrival time; Asia; body waves; Canada; China; coordinates; corrections; earthquakes; elastic waves; explosions; Far East; Lop Nor China; nuclear explosions; P-waves; propagation; seismic sources; seismic waves; teleseismic signals; traveltime residuals; Western Canada ER - TY - JOUR T1 - Teleseismic imaging of the Valles Caldera AN - 52599050; 1998-037812 JF - Eos, Transactions, American Geophysical Union AU - Hildebrand, Steve AU - Fehler, Michael AU - Steck, Lee AU - Aprea, Claudia AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 444 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Jemez volcanic field KW - P-waves KW - imagery KW - finite difference analysis KW - data acquisition KW - data processing KW - Sandoval County New Mexico KW - mantle KW - elastic waves KW - New Mexico KW - volcanic features KW - Valles Caldera KW - upper mantle KW - body waves KW - three-dimensional models KW - statistical analysis KW - Kirchhoff integral KW - teleseismic signals KW - Mohorovicic discontinuity KW - volcanic fields KW - calderas KW - traveltime KW - seismic waves KW - earthquakes KW - north-central New Mexico KW - magma chambers KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52599050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Teleseismic+imaging+of+the+Valles+Caldera&rft.au=Hildebrand%2C+Steve%3BFehler%2C+Michael%3BSteck%2C+Lee%3BAprea%2C+Claudia%3BAnonymous&rft.aulast=Hildebrand&rft.aufirst=Steve&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=444&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - body waves; calderas; data acquisition; data processing; earthquakes; elastic waves; finite difference analysis; imagery; Jemez volcanic field; Kirchhoff integral; magma chambers; mantle; Mohorovicic discontinuity; New Mexico; north-central New Mexico; P-waves; Sandoval County New Mexico; seismic waves; statistical analysis; teleseismic signals; three-dimensional models; traveltime; United States; upper mantle; Valles Caldera; volcanic features; volcanic fields ER - TY - JOUR T1 - Shallow microearthquakes in the Rio Grande Rift, north-central New Mexico AN - 52598639; 1998-037814 JF - Eos, Transactions, American Geophysical Union AU - House, L S AU - Gardner, J N AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 444 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - shallow-focus earthquakes KW - seismic intensity KW - Sangre de Cristo Mountains KW - New Mexico KW - cluster analysis KW - Rio Grande Rift KW - traveltime residuals KW - Santa Fe County New Mexico KW - focus KW - North America KW - swarms KW - rift zones KW - statistical analysis KW - magnitude KW - U. S. Rocky Mountains KW - brittle deformation KW - deformation KW - Santa Fe New Mexico KW - velocity structure KW - microearthquakes KW - earthquakes KW - Rocky Mountains KW - north-central New Mexico KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52598639?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Shallow+microearthquakes+in+the+Rio+Grande+Rift%2C+north-central+New+Mexico&rft.au=House%2C+L+S%3BGardner%2C+J+N%3BAnonymous&rft.aulast=House&rft.aufirst=L&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=444&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - brittle deformation; cluster analysis; deformation; earthquakes; focus; magnitude; microearthquakes; New Mexico; North America; north-central New Mexico; rift zones; Rio Grande Rift; Rocky Mountains; Sangre de Cristo Mountains; Santa Fe County New Mexico; Santa Fe New Mexico; seismic intensity; shallow-focus earthquakes; statistical analysis; swarms; traveltime residuals; U. S. Rocky Mountains; United States; velocity structure ER - TY - JOUR T1 - Correlation of olivine electrical conductivity change with water activity AN - 52598049; 1998-037761 JF - Eos, Transactions, American Geophysical Union AU - Shankland, T J AU - Duba, A G AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 730 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - water KW - silicates KW - upper mantle KW - experimental studies KW - electrical conductivity KW - mantle KW - olivine group KW - San Carlos Olivine KW - temperature KW - carbon dioxide KW - nesosilicates KW - laboratory studies KW - carbon monoxide KW - hydrogen KW - olivine KW - orthosilicates KW - atmospheric pressure KW - diffusivity KW - 17B:Geophysics of minerals and rocks KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52598049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Correlation+of+olivine+electrical+conductivity+change+with+water+activity&rft.au=Shankland%2C+T+J%3BDuba%2C+A+G%3BAnonymous&rft.aulast=Shankland&rft.aufirst=T&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=730&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmospheric pressure; carbon dioxide; carbon monoxide; diffusivity; electrical conductivity; experimental studies; hydrogen; laboratory studies; mantle; nesosilicates; olivine; olivine group; orthosilicates; San Carlos Olivine; silicates; temperature; upper mantle; water ER - TY - JOUR T1 - Pervasive nonlinear sediment response observed during the 1994 Northridge earthquake AN - 52597842; 1998-041253 JF - Eos, Transactions, American Geophysical Union AU - Field, Edward H AU - Zeng, Yuehua AU - Johnson, Paul A AU - Beresnev, Igor A AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 431 EP - 432 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Los Angeles County California KW - geophysical surveys KW - Green function KW - elastic waves KW - wave amplification KW - California KW - Los Angeles California KW - aftershocks KW - resonance KW - strong motion KW - sediments KW - ground motion KW - surveys KW - seismic waves KW - Northridge earthquake 1994 KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52597842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Pervasive+nonlinear+sediment+response+observed+during+the+1994+Northridge+earthquake&rft.au=Field%2C+Edward+H%3BZeng%2C+Yuehua%3BJohnson%2C+Paul+A%3BBeresnev%2C+Igor+A%3BAnonymous&rft.aulast=Field&rft.aufirst=Edward&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=431&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aftershocks; California; earthquakes; elastic waves; geophysical surveys; Green function; ground motion; Los Angeles California; Los Angeles County California; Northridge earthquake 1994; resonance; sediments; seismic waves; strong motion; surveys; United States; wave amplification ER - TY - JOUR T1 - Combined teleseismic and regional imaging of the subsurface of the Jemez volcanic field, New Mexico AN - 52594957; 1998-037813 JF - Eos, Transactions, American Geophysical Union AU - Fehler, Michael AU - Moreno, Fred AU - Steck, Lee AU - Baldridge, W Scott AU - Roberts, Peter AU - House, Leigh S AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 444 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - tomography KW - Jemez volcanic field KW - upper mantle KW - P-waves KW - body waves KW - imagery KW - three-dimensional models KW - lithosphere KW - Sandoval County New Mexico KW - mantle KW - inverse problem KW - elastic waves KW - continental crust KW - New Mexico KW - teleseismic signals KW - volcanic fields KW - velocity structure KW - seismic waves KW - earthquakes KW - S-waves KW - north-central New Mexico KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52594957?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Combined+teleseismic+and+regional+imaging+of+the+subsurface+of+the+Jemez+volcanic+field%2C+New+Mexico&rft.au=Fehler%2C+Michael%3BMoreno%2C+Fred%3BSteck%2C+Lee%3BBaldridge%2C+W+Scott%3BRoberts%2C+Peter%3BHouse%2C+Leigh+S%3BAnonymous&rft.aulast=Fehler&rft.aufirst=Michael&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=444&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - body waves; continental crust; crust; earthquakes; elastic waves; imagery; inverse problem; Jemez volcanic field; lithosphere; mantle; New Mexico; north-central New Mexico; P-waves; S-waves; Sandoval County New Mexico; seismic waves; teleseismic signals; three-dimensional models; tomography; United States; upper mantle; velocity structure; volcanic fields ER - TY - JOUR T1 - Magmagenesis and crustal underplating beneath the Jemez volcanic field, New Mexico (USA) AN - 52594724; 1998-042363 JF - Eos, Transactions, American Geophysical Union AU - Baldridge, W S AU - Vaniman, D T AU - Brunfelt, A O AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 826 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Jemez volcanic field KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Sandoval County New Mexico KW - mantle KW - mafic composition KW - New Mexico KW - stable isotopes KW - Cenozoic KW - assimilation KW - melting KW - major elements KW - mixing KW - basalts KW - Jemez Mountains KW - dacites KW - rare earths KW - trace elements KW - lower crust KW - geochemistry KW - chemical ratios KW - alkaline earth metals KW - rhyolites KW - Lobato Formation KW - isotope ratios KW - magma contamination KW - Miocene KW - volcanic fields KW - Nd-144/Nd-143 KW - Sr-87/Sr-86 KW - Tertiary KW - Neogene KW - metals KW - magmas KW - diachronism KW - fractional crystallization KW - neodymium KW - strontium KW - crust KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52594724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Magmagenesis+and+crustal+underplating+beneath+the+Jemez+volcanic+field%2C+New+Mexico+%28USA%29&rft.au=Baldridge%2C+W+S%3BVaniman%2C+D+T%3BBrunfelt%2C+A+O%3BAnonymous&rft.aulast=Baldridge&rft.aufirst=W&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=826&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; assimilation; basalts; Cenozoic; chemical ratios; crust; dacites; diachronism; fractional crystallization; geochemistry; igneous rocks; isotope ratios; isotopes; Jemez Mountains; Jemez volcanic field; Lobato Formation; lower crust; mafic composition; magma contamination; magmas; major elements; mantle; melting; metals; Miocene; mixing; Nd-144/Nd-143; neodymium; Neogene; New Mexico; rare earths; rhyolites; Sandoval County New Mexico; Sr-87/Sr-86; stable isotopes; strontium; Tertiary; trace elements; United States; volcanic fields; volcanic rocks ER - TY - JOUR T1 - Trace and rare earth (REE) content of clinopyroxenes in peridotites from supra-subduction zone ophiolites; implications on melting and enrichment processes in island arcs AN - 52593985; 1998-042431 JF - Eos, Transactions, American Geophysical Union AU - Bizimis, Michael AU - Salters, Vincent J M AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 836 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - Bulqiza Greece KW - subduction zones KW - Greece KW - igneous rocks KW - enrichment KW - Greek Macedonia KW - Europe KW - Southern Europe KW - theoretical studies KW - pyroxene group KW - plutonic rocks KW - melting KW - Macedonia KW - clinopyroxene KW - Othrys KW - Pindus Mountains KW - rare earths KW - trace elements KW - geochemistry KW - chain silicates KW - concentration KW - ophiolite KW - ultramafics KW - models KW - Vourinos KW - lava KW - island arcs KW - metals KW - magmas KW - peridotites KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52593985?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Trace+and+rare+earth+%28REE%29+content+of+clinopyroxenes+in+peridotites+from+supra-subduction+zone+ophiolites%3B+implications+on+melting+and+enrichment+processes+in+island+arcs&rft.au=Bizimis%2C+Michael%3BSalters%2C+Vincent+J+M%3BAnonymous&rft.aulast=Bizimis&rft.aufirst=Michael&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=836&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Bulqiza Greece; chain silicates; clinopyroxene; concentration; enrichment; Europe; geochemistry; Greece; Greek Macedonia; igneous rocks; island arcs; lava; Macedonia; magmas; melting; metals; models; ophiolite; Othrys; peridotites; Pindus Mountains; plutonic rocks; pyroxene group; rare earths; silicates; Southern Europe; subduction zones; theoretical studies; trace elements; ultramafics; Vourinos ER - TY - JOUR T1 - Waveform calibration for improved focal depth and source mechanism information AN - 52592447; 1998-041233 JF - Eos, Transactions, American Geophysical Union AU - Crotwell, H Philip AU - Randall, G E AU - Patton, H J AU - Owens, T J AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 429 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - focal mechanism KW - Far East KW - guided waves KW - one-dimensional models KW - elastic waves KW - direct problem KW - calibration KW - waveforms KW - Rayleigh waves KW - depth KW - surface waves KW - phase velocity KW - Love waves KW - velocity structure KW - seismic waves KW - wave dispersion KW - Asia KW - earthquakes KW - high-level mode KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52592447?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Waveform+calibration+for+improved+focal+depth+and+source+mechanism+information&rft.au=Crotwell%2C+H+Philip%3BRandall%2C+G+E%3BPatton%2C+H+J%3BOwens%2C+T+J%3BAnonymous&rft.aulast=Crotwell&rft.aufirst=H&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=429&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; calibration; China; depth; direct problem; earthquakes; elastic waves; Far East; focal mechanism; guided waves; high-level mode; Love waves; one-dimensional models; phase velocity; Rayleigh waves; seismic waves; surface waves; velocity structure; wave dispersion; waveforms ER - TY - JOUR T1 - Extended local Rytov Fourier method for fast simulation of primary forward acoustic wave propagation in a heterogeneous medium AN - 52592294; 1998-041206 JF - Eos, Transactions, American Geophysical Union AU - Huang, Lian-Jie AU - Fehler, Michael AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 425 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - three-dimensional models KW - data processing KW - mantle KW - elastic waves KW - wave fields KW - simulation KW - heterogeneous materials KW - Fourier analysis KW - slabs KW - propagation KW - Rytov method KW - algorithms KW - acoustical waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52592294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Extended+local+Rytov+Fourier+method+for+fast+simulation+of+primary+forward+acoustic+wave+propagation+in+a+heterogeneous+medium&rft.au=Huang%2C+Lian-Jie%3BFehler%2C+Michael%3BAnonymous&rft.aulast=Huang&rft.aufirst=Lian-Jie&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=425&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical waves; algorithms; data processing; elastic waves; Fourier analysis; heterogeneous materials; mantle; propagation; Rytov method; simulation; slabs; three-dimensional models; wave fields ER - TY - JOUR T1 - Source mechanism of explosively induced mine collapses AN - 52591166; 1998-041217 JF - Eos, Transactions, American Geophysical Union AU - Yang, Xiaoning AU - Stump, Brian W AU - Phillips, W Scott AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 426 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - mining KW - mines KW - body waves KW - geologic hazards KW - guided waves KW - explosions KW - mechanism KW - elastic waves KW - waveforms KW - land subsidence KW - seismic sources KW - models KW - surface waves KW - time factor KW - ground motion KW - spectra KW - seismic waves KW - nuclear explosions KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52591166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Source+mechanism+of+explosively+induced+mine+collapses&rft.au=Yang%2C+Xiaoning%3BStump%2C+Brian+W%3BPhillips%2C+W+Scott%3BAnonymous&rft.aulast=Yang&rft.aufirst=Xiaoning&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=426&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - body waves; elastic waves; explosions; geologic hazards; ground motion; guided waves; land subsidence; mechanism; mines; mining; models; nuclear explosions; S-waves; seismic sources; seismic waves; spectra; surface waves; time factor; waveforms ER - TY - JOUR T1 - Modeling anomalous surface-wave propagation across the South Caspian Basin AN - 52590128; 1998-041225 JF - Eos, Transactions, American Geophysical Union AU - Patton, H J AU - Priestley, K AU - Schultz, Craig AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 427 EP - 428 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - seismograms KW - body waves KW - guided waves KW - finite difference analysis KW - statistical analysis KW - Lg-waves KW - elastic waves KW - anomalies KW - basin analysis KW - Rayleigh waves KW - Mohorovicic discontinuity KW - models KW - attenuation KW - surface waves KW - synthetic seismograms KW - thickness KW - propagation KW - seismic waves KW - Caspian Basin KW - Asia KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52590128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Modeling+anomalous+surface-wave+propagation+across+the+South+Caspian+Basin&rft.au=Patton%2C+H+J%3BPriestley%2C+K%3BSchultz%2C+Craig%3BAnonymous&rft.aulast=Patton&rft.aufirst=H&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=427&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anomalies; Asia; attenuation; basin analysis; body waves; Caspian Basin; elastic waves; finite difference analysis; guided waves; Lg-waves; models; Mohorovicic discontinuity; propagation; Rayleigh waves; S-waves; seismic waves; seismograms; statistical analysis; surface waves; synthetic seismograms; thickness ER - TY - JOUR T1 - Chemical transport in hydrothermal systems; clues to the composition of the Martian soil AN - 52587634; 1998-042530 JF - Eos, Transactions, American Geophysical Union AU - Newsom, H E AU - Hagerty, J J AU - Goff, F AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 403 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - chlorine KW - chemical elements KW - Mars Pathfinder Program KW - lithium KW - enrichment KW - halogens KW - alkali metals KW - Mars KW - migration of elements KW - hydrothermal conditions KW - terrestrial planets KW - planets KW - metals KW - sulfur KW - terrestrial comparison KW - geochemistry KW - chemical ratios KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52587634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Chemical+transport+in+hydrothermal+systems%3B+clues+to+the+composition+of+the+Martian+soil&rft.au=Newsom%2C+H+E%3BHagerty%2C+J+J%3BGoff%2C+F%3BAnonymous&rft.aulast=Newsom&rft.aufirst=H&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=403&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkali metals; chemical elements; chemical ratios; chlorine; enrichment; geochemistry; halogens; hydrothermal conditions; lithium; Mars; Mars Pathfinder Program; metals; migration of elements; planets; soils; sulfur; terrestrial comparison; terrestrial planets ER - TY - JOUR T1 - Quantitative passive infrared remote sensing of gaseous emissions at Popocatepetl Volcano, Mexico AN - 52534511; 1999-001396 JF - Eos, Transactions, American Geophysical Union AU - Love, S P AU - Counce, D AU - Goff, F AU - Siebe, C AU - Delgado, H AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 798 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - geologic hazards KW - data processing KW - Popocatepetl KW - temperature KW - infrared spectra KW - infrared methods KW - quantitative analysis KW - volcanism KW - Fourier analysis KW - hydrofluoric acid KW - spectra KW - volcanic ash KW - inorganic acids KW - geochemistry KW - degassing KW - water KW - sulfur dioxide KW - monitoring KW - ground methods KW - geophysical methods KW - atmosphere KW - gases KW - volcanic risk KW - Mexico KW - eruptions KW - hydrochloric acid KW - volcanoes KW - remote sensing KW - 20:Applied geophysics KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52534511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Quantitative+passive+infrared+remote+sensing+of+gaseous+emissions+at+Popocatepetl+Volcano%2C+Mexico&rft.au=Love%2C+S+P%3BCounce%2C+D%3BGoff%2C+F%3BSiebe%2C+C%3BDelgado%2C+H%3BAnonymous&rft.aulast=Love&rft.aufirst=S&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=798&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; data processing; degassing; eruptions; Fourier analysis; gases; geochemistry; geologic hazards; geophysical methods; ground methods; hydrochloric acid; hydrofluoric acid; infrared methods; infrared spectra; inorganic acids; Mexico; monitoring; Popocatepetl; quantitative analysis; remote sensing; spectra; sulfur dioxide; temperature; volcanic ash; volcanic risk; volcanism; volcanoes; water ER - TY - JOUR T1 - Trace element fractionation during modal and non-modal dynamic melting and open-system melting AN - 52530282; 1999-001496 JF - Eos, Transactions, American Geophysical Union AU - Zou, Haibo AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 813 EP - 814 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - theoretical studies KW - melting KW - open systems KW - island arcs KW - magmas KW - partial melting KW - mantle KW - trace elements KW - geochemistry KW - dynamic properties KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52530282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Trace+element+fractionation+during+modal+and+non-modal+dynamic+melting+and+open-system+melting&rft.au=Zou%2C+Haibo%3BAnonymous&rft.aulast=Zou&rft.aufirst=Haibo&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=813&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 6 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chemical fractionation; dynamic properties; geochemistry; island arcs; magmas; mantle; melting; open systems; partial melting; theoretical studies; trace elements ER - TY - JOUR T1 - Metal emissions from Kilauea; proportions, source strength, and contribution to current estimates of volcanic injection to the atmosphere AN - 52528060; 1999-001430 JF - Eos, Transactions, American Geophysical Union AU - Hinkley, Todd AU - Wilson, Stephen A AU - Lamothe, Paul J AU - Landis, Gary P AU - Finnegan, David L AU - Gerlach, Terrence M AU - Thornber, C R AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 803 EP - 804 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - plumes KW - Hawaii Island KW - Hawaii County Hawaii KW - mass spectra KW - Hawaii KW - atmosphere KW - East Pacific Ocean Islands KW - inductively coupled plasma spectra KW - volcanism KW - volatile elements KW - metals KW - Oceania KW - volcanoes KW - spectra KW - Polynesia KW - Kilauea KW - geochemistry KW - degassing KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52528060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Metal+emissions+from+Kilauea%3B+proportions%2C+source+strength%2C+and+contribution+to+current+estimates+of+volcanic+injection+to+the+atmosphere&rft.au=Hinkley%2C+Todd%3BWilson%2C+Stephen+A%3BLamothe%2C+Paul+J%3BLandis%2C+Gary+P%3BFinnegan%2C+David+L%3BGerlach%2C+Terrence+M%3BThornber%2C+C+R%3BAnonymous&rft.aulast=Hinkley&rft.aufirst=Todd&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=803&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; degassing; East Pacific Ocean Islands; geochemistry; Hawaii; Hawaii County Hawaii; Hawaii Island; inductively coupled plasma spectra; Kilauea; mass spectra; metals; Oceania; plumes; Polynesia; spectra; United States; volatile elements; volcanism; volcanoes ER - TY - RPRT T1 - Prestack depth migration for complex 2D structure using phase-screen propagators AN - 52525355; 1999-010022 AB - We present results for the phase-screen propagator method applied to prestack depth migration of the Marmousi synthetic data set. The data were migrated as individual common-shot records and the resulting partial images were superposed to obtain the final complete Image. Tests were performed to determine the minimum number of frequency components required to achieve the best quality image and this in turn provided estimates of the minimum computing time. Running on a single processor SUN SPARC Ultra I, high quality images were obtained in as little as 8.7 CPU hours and adequate images were obtained in as little as 4.4 CPU hours. Different methods were tested for choosing the reference velocity used for the background phase-shift operation and for defining the slowness perturbation screens. Although the depths of some of the steeply dipping, high-contrast features were shifted slightly the overall image quality was fairly insensitive to the choice of the reference velocity. Our jests show the phase-screen method to be a reliable and fast algorithm for imaging complex geologic structures, at least for complex 2D synthetic data where the velocity model is known. JF - Prestack depth migration for complex 2D structure using phase-screen propagators AU - Roberts, P AU - Huang, L J AU - Burch, C AU - Fehler, M AU - Hildebrand, S Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 5 VL - LA-UR-97-1544 | CONF-971111 KW - imagery KW - geophysical methods KW - data processing KW - mathematical models KW - elastic waves KW - seismic migration KW - depth KW - two-dimensional models KW - seismic methods KW - computer programs KW - propagation KW - seismic waves KW - algorithms KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52525355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Roberts%2C+P%3BHuang%2C+L+J%3BBurch%2C+C%3BFehler%2C+M%3BHildebrand%2C+S&rft.aulast=Roberts&rft.aufirst=P&rft.date=1997-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Prestack+depth+migration+for+complex+2D+structure+using+phase-screen+propagators&rft.title=Prestack+depth+migration+for+complex+2D+structure+using+phase-screen+propagators&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1999-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97007365NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the Annual meeting and expo of the Society of Exploration Geophysicists (SEG) (67th), Dallas, TX, Nov. 2-7, 1997; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Intracaldera hydrothermal activity associated with rhyolitic volcanism at Volcan Alcedo, Galapagos hot spot, Ecuador AN - 52525270; 1999-001438 JF - Eos, Transactions, American Geophysical Union AU - Goff, F AU - McMurtry, G M AU - Hilton, D R AU - Stimac, J A AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 805 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - hot spots KW - volcanic rocks KW - igneous rocks KW - Galapagos Rift KW - fumaroles KW - water vapor KW - explosive eruptions KW - volcanic features KW - Galapagos Islands KW - volcanism KW - phreatomagmatism KW - shield volcanoes KW - Alcedo KW - East Pacific KW - meteoric water KW - rhyolites KW - East Pacific Ocean Islands KW - thermal waters KW - hydrothermal conditions KW - calderas KW - pyroclastics KW - plate tectonics KW - lava KW - magmas KW - Pacific Ocean KW - volcanoes KW - magma chambers KW - 21:Hydrogeology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52525270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Intracaldera+hydrothermal+activity+associated+with+rhyolitic+volcanism+at+Volcan+Alcedo%2C+Galapagos+hot+spot%2C+Ecuador&rft.au=Goff%2C+F%3BMcMurtry%2C+G+M%3BHilton%2C+D+R%3BStimac%2C+J+A%3BAnonymous&rft.aulast=Goff&rft.aufirst=F&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=805&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Alcedo; calderas; East Pacific; East Pacific Ocean Islands; explosive eruptions; fumaroles; Galapagos Islands; Galapagos Rift; hot spots; hydrothermal conditions; igneous rocks; lava; magma chambers; magmas; meteoric water; Pacific Ocean; phreatomagmatism; plate tectonics; pyroclastics; rhyolites; shield volcanoes; thermal waters; volcanic features; volcanic rocks; volcanism; volcanoes; water vapor ER - TY - RPRT T1 - Using waveforms of induced microearthquakes to image hydraulic fracture systems AN - 52451770; 1999-052950 AB - Locations of microearthquakes induced by hydraulic fracturing have shown many features of the fracture systems produced (see Phillips, et al., 1997, for a summary of many studies). Nevertheless. portions of the fracture systems are not seismically active, and thus, they cannot be studied using locations of induced microearthquakes. Moreover, identification of the fluid pathways within fracture systems is needed for modeling and understanding the fluid flow within fracture systems. To obtain this additional information about the aseismic as well as the seismic portions of the fracture system, additional techniques for analysis of the microearthquake data have been developed. The first, 3-D velocity inversion, solves simultaneously for the 3-D velocity structure as well as microearthquake locations, and has been used to study reservoir structure from a hydraulic fracture done in crystalline rock, as well as other earthquake data sets (see Block, et al., 1994). This analysis method aims to identify regions of the fracture system that contain significant portions of injected fluid by identifying those regions that have decreased seismic velocities. The second method, analysis of secondary seismic arrivals, aims to extract similar information, but with greater spatial resolution. Results from applying this method to microearthquake data from two hydraulic injections, one into crystalline rock, the other into sedimentary rock, are presented here. These results demonstrate that secondary seismic arrivals can provide information that cannot be obtained from the locations of the induced microearthquakes alone. Thus, these results complement the information provided by the microearthquake locations. JF - Using waveforms of induced microearthquakes to image hydraulic fracture systems AU - House, L AU - Phillips, W S AU - Fehler, M AU - Rutledge, J Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 6 VL - LA-UR-97-1548 KW - hydraulic fracturing KW - fractured materials KW - hydraulics KW - three-dimensional models KW - engineering properties KW - site exploration KW - elastic waves KW - waveforms KW - fluid dynamics KW - spatial distribution KW - fractures KW - seismicity KW - velocity structure KW - sediments KW - velocity KW - rocks KW - induced earthquakes KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52451770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=House%2C+L%3BPhillips%2C+W+S%3BFehler%2C+M%3BRutledge%2C+J&rft.aulast=House&rft.aufirst=L&rft.date=1997-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Using+waveforms+of+induced+microearthquakes+to+image+hydraulic+fracture+systems&rft.title=Using+waveforms+of+induced+microearthquakes+to+image+hydraulic+fracture+systems&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1999-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97007361NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-26 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Bias in CMT moments for Central Asian earthquakes; teleseismic body wave modeling studies AN - 52448305; 1999-056095 JF - Eos, Transactions, American Geophysical Union AU - Jones, Laura E AU - Patton, Howard J AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 481 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - seismograms KW - body waves KW - focal mechanism KW - PREM model KW - seismic moment KW - data processing KW - Green function KW - elastic waves KW - continental crust KW - teleseismic signals KW - layered materials KW - Central Asia KW - models KW - moment tensors KW - digital simulation KW - synthetic seismograms KW - broad-band spectra KW - seismic waves KW - Asia KW - earthquakes KW - crust KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52448305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Bias+in+CMT+moments+for+Central+Asian+earthquakes%3B+teleseismic+body+wave+modeling+studies&rft.au=Jones%2C+Laura+E%3BPatton%2C+Howard+J%3BAnonymous&rft.aulast=Jones&rft.aufirst=Laura&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - amplitude; Asia; body waves; broad-band spectra; Central Asia; continental crust; crust; data processing; digital simulation; earthquakes; elastic waves; focal mechanism; Green function; layered materials; models; moment tensors; PREM model; seismic moment; seismic waves; seismograms; synthetic seismograms; teleseismic signals ER - TY - JOUR T1 - Standard analysis method (SAM) for the automated analysis of polychlorinated biphenyls (PCBs) in soils using the chemical analysis automation (CAA) paradigm; validation and performance AN - 52411928; 2000-000030 AB - The Chemical Analysis Automation (CAA) program is developing a standardized modular automation strategy for chemical analysis. In this automation concept, analytical chemistry is performed with modular building blocks that correspond to individual elements of the steps in the analytical process. With a standardized set of behaviors and interactions, these blocks can be assembled in a plug-and-play manner into a complete analysis system. These building blocks, which are referred to as Standard laboratory Modules (SLM), interface to a host control system that orchestrates the entire analytical process, from sample preparation through data interpretation. The integratedsystem is called a Standard Analysis Method (SAM). A SAM for the automated determination of polychlorinated biphenyls (PCBs) in soils, assembled in a mobile laboratory, is undergoing extensive testing and validation. The SAM consists of the following SLMs: a four-channel Soxhlet extractor, a high-volume concentration, a column clean-up, a gas chromatography, a PCB data-interpretation module, a robot, and a human-computer interface. The SAM is configured to meet the requirements specified in the US Environmental Protection Agency's (EPA) SW-846 methods 3541/3620A/8082 for the analysis of PCBs in soils. The PCB SAM will be described along with the developmental test plan. Performance data obtained during developmental testing will also be discussed. JF - LA - Los Alamos Scientific Laboratory AU - Rzeszutko, C AU - Johnson, C R AU - Monagle, M AU - Klatt, L N Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 15 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - soils KW - chlorinated hydrocarbons KW - standard analysis methods KW - concentration KW - chemical analysis KW - pollutants KW - PCBs KW - data processing KW - pollution KW - environmental analysis KW - measurement KW - automated analysis KW - laboratory studies KW - gas chromatography KW - organic compounds KW - halogenated hydrocarbons KW - chemical composition KW - geochemistry KW - instruments KW - design KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52411928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Rzeszutko%2C+C%3BJohnson%2C+C+R%3BMonagle%2C+M%3BKlatt%2C+L+N&rft.aulast=Rzeszutko&rft.aufirst=C&rft.date=1997-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Standard+analysis+method+%28SAM%29+for+the+automated+analysis+of+polychlorinated+biphenyls+%28PCBs%29+in+soils+using+the+chemical+analysis+automation+%28CAA%29+paradigm%3B+validation+and+performance&rft.title=Standard+analysis+method+%28SAM%29+for+the+automated+analysis+of+polychlorinated+biphenyls+%28PCBs%29+in+soils+using+the+chemical+analysis+automation+%28CAA%29+paradigm%3B+validation+and+performance&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98001727NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - automated analysis; chemical analysis; chemical composition; chlorinated hydrocarbons; concentration; data processing; design; environmental analysis; gas chromatography; geochemistry; halogenated hydrocarbons; instruments; laboratory studies; measurement; organic compounds; PCBs; pollutants; pollution; soils; standard analysis methods ER - TY - JOUR T1 - Zircon synthesis via sintering of SiO (sub 2) and ZrO (sub 2) AN - 52168792; 2002-004012 JF - Eos, Transactions, American Geophysical Union AU - Spearing, Dane R AU - Huang, John Y AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 767 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - zircon group KW - sintering KW - silicates KW - thermal properties KW - zircon KW - grinding KW - nesosilicates KW - phase equilibria KW - orthosilicates KW - crystallization KW - synthetic materials KW - P-T conditions KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52168792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Zircon+synthesis+via+sintering+of+SiO+%28sub+2%29+and+ZrO+%28sub+2%29&rft.au=Spearing%2C+Dane+R%3BHuang%2C+John+Y%3BAnonymous&rft.aulast=Spearing&rft.aufirst=Dane&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=767&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - crystallization; grinding; nesosilicates; orthosilicates; P-T conditions; phase equilibria; silicates; sintering; synthetic materials; thermal properties; zircon; zircon group ER - TY - JOUR T1 - Dating soils with cosmogenic (super 21) Ne AN - 52161089; 2002-004047 JF - Eos, Transactions, American Geophysical Union AU - Phillips, W M AU - McDonald, E V AU - Reneau, S L AU - Poths, J AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 772 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - Ne-21 KW - methods KW - Quaternary KW - isotopes KW - Holocene KW - exposure age KW - stable isotopes KW - Cenozoic KW - chronology KW - dates KW - noble gases KW - neon KW - absolute age KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52161089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Dating+soils+with+cosmogenic+%28super+21%29+Ne&rft.au=Phillips%2C+W+M%3BMcDonald%2C+E+V%3BReneau%2C+S+L%3BPoths%2C+J%3BAnonymous&rft.aulast=Phillips&rft.aufirst=W&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=772&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; Cenozoic; chronology; dates; exposure age; Holocene; isotopes; methods; Ne-21; neon; noble gases; Quaternary; soils; stable isotopes ER - TY - JOUR T1 - Using thermal modeling and forward models of metamorphic textures to decipher P-T-t-X conditions of regional-contact metamorphic terranes AN - 52159110; 2002-004124 JF - Eos, Transactions, American Geophysical Union AU - Dutrow, B AU - Foster, C T, Jr AU - Travis, B AU - Gable, C AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 783 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - models KW - contact metamorphism KW - phase equilibria KW - textures KW - petrography KW - Maine KW - thermal history KW - metamorphism KW - P-T conditions KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52159110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Using+thermal+modeling+and+forward+models+of+metamorphic+textures+to+decipher+P-T-t-X+conditions+of+regional-contact+metamorphic+terranes&rft.au=Dutrow%2C+B%3BFoster%2C+C+T%2C+Jr%3BTravis%2C+B%3BGable%2C+C%3BAnonymous&rft.aulast=Dutrow&rft.aufirst=B&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=783&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - contact metamorphism; Maine; metamorphism; models; P-T conditions; petrography; phase equilibria; textures; thermal history; United States ER - TY - JOUR T1 - Timing of soil accumulation using cosmogenic He surface exposure dating AN - 52157663; 2002-004046 JF - Eos, Transactions, American Geophysical Union AU - Poths, J AU - McLain, A AU - McFadden, L AU - Eppes, M AU - Harrison, B AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 772 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - methods KW - Quaternary KW - New Mexico KW - Holocene KW - exposure age KW - Cenozoic KW - chronology KW - sampling KW - dates KW - noble gases KW - age KW - absolute age KW - helium KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52157663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Timing+of+soil+accumulation+using+cosmogenic+He+surface+exposure+dating&rft.au=Poths%2C+J%3BMcLain%2C+A%3BMcFadden%2C+L%3BEppes%2C+M%3BHarrison%2C+B%3BAnonymous&rft.aulast=Poths&rft.aufirst=J&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=772&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; age; Cenozoic; chronology; dates; exposure age; helium; Holocene; methods; New Mexico; noble gases; Quaternary; sampling; United States ER - TY - JOUR T1 - Uranium decay series mobility from a uranium ore deposit; implications for nuclear repository stability AN - 52156229; 2002-004157 JF - Eos, Transactions, American Geophysical Union AU - Murrell, Michael T AU - Goldstein, Steve J AU - Dixon, P R AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 788 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - Quaternary KW - underground storage KW - thermal ionization mass spectra KW - stability KW - mass spectra KW - radioactive decay KW - Th/U KW - radioactive waste KW - time scales KW - Cenozoic KW - uranium ores KW - whole rock KW - metals KW - underground installations KW - metal ores KW - absolute age KW - Pleistocene KW - uranium KW - spectra KW - waste disposal KW - actinides KW - accuracy KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52156229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Uranium+decay+series+mobility+from+a+uranium+ore+deposit%3B+implications+for+nuclear+repository+stability&rft.au=Murrell%2C+Michael+T%3BGoldstein%2C+Steve+J%3BDixon%2C+P+R%3BAnonymous&rft.aulast=Murrell&rft.aufirst=Michael&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=788&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; actinides; Cenozoic; mass spectra; metal ores; metals; Pleistocene; Quaternary; radioactive decay; radioactive waste; spectra; stability; Th/U; thermal ionization mass spectra; time scales; underground installations; underground storage; uranium; uranium ores; waste disposal; whole rock ER - TY - JOUR T1 - U-series analyses of young lavas from 9-10 N East Pacific Rise; constraints on magma transport and storage times beneath the ridge axis AN - 52152557; 2002-004188 JF - Eos, Transactions, American Geophysical Union AU - Sims, Kenneth W W AU - Goldstein, Steve J AU - Fornari, Daniel J AU - Murrell, Michael T AU - Perfit, Mike AU - Hart, Stan R AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 792 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - East Pacific KW - U/Pa KW - volcanic rocks KW - igneous rocks KW - Th/U KW - phase equilibria KW - lava KW - dates KW - magmas KW - Pacific Ocean KW - mid-ocean ridge basalts KW - basalts KW - absolute age KW - crystallization KW - East Pacific Rise KW - accuracy KW - 03:Geochronology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52152557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=U-series+analyses+of+young+lavas+from+9-10+N+East+Pacific+Rise%3B+constraints+on+magma+transport+and+storage+times+beneath+the+ridge+axis&rft.au=Sims%2C+Kenneth+W+W%3BGoldstein%2C+Steve+J%3BFornari%2C+Daniel+J%3BMurrell%2C+Michael+T%3BPerfit%2C+Mike%3BHart%2C+Stan+R%3BAnonymous&rft.aulast=Sims&rft.aufirst=Kenneth+W&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=792&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; basalts; crystallization; dates; East Pacific; East Pacific Rise; igneous rocks; lava; magmas; mid-ocean ridge basalts; Pacific Ocean; phase equilibria; Th/U; U/Pa; volcanic rocks ER - TY - JOUR T1 - Studying reversal frequency with geodynamo simulations AN - 51810360; 2004-067321 JF - Eos, Transactions, American Geophysical Union AU - Glatzmaier, Gary A AU - Roberts, Paul H AU - Coe, Robert S AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 194 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - magnetohydrodynamics KW - heat flux KW - potential field KW - dynamos KW - data processing KW - mantle KW - paleomagnetism KW - frequency KW - convection KW - core-mantle boundary KW - magnetic field KW - outer core KW - lower mantle KW - Phanerozoic KW - reversals KW - heat flow KW - digital simulation KW - core KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51810360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Studying+reversal+frequency+with+geodynamo+simulations&rft.au=Glatzmaier%2C+Gary+A%3BRoberts%2C+Paul+H%3BCoe%2C+Robert+S%3BAnonymous&rft.aulast=Glatzmaier&rft.aufirst=Gary&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; core; core-mantle boundary; data processing; digital simulation; dynamos; frequency; heat flow; heat flux; lower mantle; magnetic field; magnetohydrodynamics; mantle; outer core; paleomagnetism; Phanerozoic; potential field; reversals ER - TY - JOUR T1 - The ancient geodynamo AN - 51810324; 2004-067320 JF - Eos, Transactions, American Geophysical Union AU - Roberts, Paul H AU - Glatzmaier, Gary A AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 194 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - magnetohydrodynamics KW - heat flux KW - three-dimensional models KW - dynamos KW - mantle KW - convection KW - core-mantle boundary KW - magnetic field KW - buoyancy KW - outer core KW - lower mantle KW - Phanerozoic KW - theoretical studies KW - heat flow KW - cooling KW - core KW - inner core KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51810324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+ancient+geodynamo&rft.au=Roberts%2C+Paul+H%3BGlatzmaier%2C+Gary+A%3BAnonymous&rft.aulast=Roberts&rft.aufirst=Paul&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - buoyancy; convection; cooling; core; core-mantle boundary; dynamos; heat flow; heat flux; inner core; lower mantle; magnetic field; magnetohydrodynamics; mantle; outer core; Phanerozoic; theoretical studies; three-dimensional models ER - TY - JOUR T1 - Origin of magnetic field structures in a convection-driven dynamo AN - 51805431; 2004-067237 JF - Eos, Transactions, American Geophysical Union AU - Olson, Peter AU - Christensen, Ulrich AU - Glatzmaier, Gary A AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 183 EP - 184 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - magnetohydrodynamics KW - numerical models KW - three-dimensional models KW - dynamos KW - mantle KW - convection KW - toroidal mode KW - Ekman number KW - core-mantle boundary KW - magnetic field KW - outer core KW - lower mantle KW - theoretical studies KW - Rayleigh number KW - Roberts number KW - core KW - dipole moment KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51805431?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Origin+of+magnetic+field+structures+in+a+convection-driven+dynamo&rft.au=Olson%2C+Peter%3BChristensen%2C+Ulrich%3BGlatzmaier%2C+Gary+A%3BAnonymous&rft.aulast=Olson&rft.aufirst=Peter&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; core; core-mantle boundary; dipole moment; dynamos; Ekman number; lower mantle; magnetic field; magnetohydrodynamics; mantle; numerical models; outer core; Rayleigh number; Roberts number; theoretical studies; three-dimensional models; toroidal mode ER - TY - JOUR T1 - Formation of a metastable olivine wedge in a descending slab AN - 51042831; 1998-009411 JF - Journal of Geophysical Research AU - Devaux, Jean Philippe AU - Schubert, Gerald AU - Anderson, Charles Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 24 EP - 24,637 PB - American Geophysical Union, Washington, DC VL - 102 IS - B11 SN - 0148-0227, 0148-0227 KW - silicates KW - numerical models KW - statistical analysis KW - stability KW - spinel KW - olivine group KW - thermal regime KW - nesosilicates KW - models KW - finite element analysis KW - discontinuities KW - chemical reactions KW - heat flow KW - deep-focus earthquakes KW - olivine KW - slabs KW - orthosilicates KW - oxides KW - transformations KW - kinetics KW - earthquakes KW - 670-km discontinuity KW - P-T conditions KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51042831?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Formation+of+a+metastable+olivine+wedge+in+a+descending+slab&rft.au=Devaux%2C+Jean+Philippe%3BSchubert%2C+Gerald%3BAnderson%2C+Charles&rft.aulast=Devaux&rft.aufirst=Jean&rft.date=1997-11-01&rft.volume=102&rft.issue=B11&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F97JB02334 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - 670-km discontinuity; chemical reactions; deep-focus earthquakes; discontinuities; earthquakes; finite element analysis; heat flow; kinetics; models; nesosilicates; numerical models; olivine; olivine group; orthosilicates; oxides; P-T conditions; silicates; slabs; spinel; stability; statistical analysis; thermal regime; transformations DO - http://dx.doi.org/10.1029/97JB02334 ER - TY - JOUR T1 - Magma-crust interaction during the early history of the Jemez Mountains volcanic field (JMVF), New Mexico; geochemistry of mafic lavas from the Keres Group and implications for the petrogenesis of the Bandelier Tuff AN - 50320984; 1999-001374 JF - Eos, Transactions, American Geophysical Union AU - Ellisor, R AU - Wolff, J A AU - Gardner, J N AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 795 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - magmatic differentiation KW - volcanic rocks KW - igneous rocks KW - Sandoval County New Mexico KW - mafic composition KW - continental crust KW - New Mexico KW - Cenozoic KW - assimilation KW - Bandelier Tuff KW - basalts KW - Jemez Mountains KW - tuff KW - trace elements KW - hybridization KW - geochemistry KW - tholeiite KW - Keres Group KW - Quaternary KW - magma contamination KW - northwestern New Mexico KW - Miocene KW - volcanic fields KW - pyroclastics KW - Tertiary KW - lava KW - Neogene KW - magmas KW - Pleistocene KW - nephelinite KW - crust KW - basanite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50320984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Magma-crust+interaction+during+the+early+history+of+the+Jemez+Mountains+volcanic+field+%28JMVF%29%2C+New+Mexico%3B+geochemistry+of+mafic+lavas+from+the+Keres+Group+and+implications+for+the+petrogenesis+of+the+Bandelier+Tuff&rft.au=Ellisor%2C+R%3BWolff%2C+J+A%3BGardner%2C+J+N%3BAnonymous&rft.aulast=Ellisor&rft.aufirst=R&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=795&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 3 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - assimilation; Bandelier Tuff; basalts; basanite; Cenozoic; continental crust; crust; geochemistry; hybridization; igneous rocks; Jemez Mountains; Keres Group; lava; mafic composition; magma contamination; magmas; magmatic differentiation; Miocene; Neogene; nephelinite; New Mexico; northwestern New Mexico; Pleistocene; pyroclastics; Quaternary; Sandoval County New Mexico; Tertiary; tholeiite; trace elements; tuff; United States; volcanic fields; volcanic rocks ER - TY - JOUR T1 - The neutron signature of Mercury's volatile polar deposits AN - 50152853; 2006-017632 AB - Neutron leakage flux spectra are simulated to explore whether the nature of volatile deposits residing within the permanently shaded craters near the poles of Mercury can be identified using state-of-the-art space neutron detection techniques deployed aboard a flyby mission to Mercury. The most sensitive method for discriminating between H (sub 2) O (ice)-rich and S-rich deposits involves measurement of the flux of epithermal neutrons. We conclude that a single flyby over crater Chao Meng-Fu at an altitude of 200 km is sufficient to detect a circular deposit rich in elemental sulfur at the 2.6sigma statistical significance level, and that a similar deposit rich in H (sub 2) O can be identified at the 7.8sigma level. Whereas identification of a S-rich deposit is not unique but compelling because of auxiliary physical arguments, that of an H (sub 2) O deposit is unique. Copyright 1997 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Feldman, W C AU - Barraclough, B L AU - Hansen, C J AU - Sprague, A L Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 25 EP - 25,574 PB - American Geophysical Union, Washington, DC VL - 102 IS - E11 SN - 0148-0227, 0148-0227 KW - water KW - surface properties KW - polar regions KW - neutron methods KW - cosmochemistry KW - Chao Meng-Fu Crater KW - satellite methods KW - terrestrial planets KW - planets KW - craters KW - volatile elements KW - Mercury Planet KW - sulfur KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50152853?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+neutron+signature+of+Mercury%27s+volatile+polar+deposits&rft.au=Feldman%2C+W+C%3BBarraclough%2C+B+L%3BHansen%2C+C+J%3BSprague%2C+A+L&rft.aulast=Feldman&rft.aufirst=W&rft.date=1997-11-01&rft.volume=102&rft.issue=E11&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F97JE02353 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Chao Meng-Fu Crater; cosmochemistry; craters; Mercury Planet; neutron methods; planets; polar regions; remote sensing; satellite methods; sulfur; surface properties; terrestrial planets; volatile elements; water DO - http://dx.doi.org/10.1029/97JE02353 ER - TY - JOUR T1 - The Drift Scale Heater Test at Yucca Mountain, Nevada AN - 50066847; 2010-024898 JF - Eos, Transactions, American Geophysical Union AU - Peters, Mark AU - Boyle, William AU - Datta, Robin AU - Elkins, Ned AU - Wagner, Ralph AU - Weaver, Douglas AU - Yasek, Robert AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 1 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - monitoring KW - Drift Scale Heater Test KW - engineering properties KW - site exploration KW - ground-penetrating radar KW - radar methods KW - resistivity KW - Nye County Nevada KW - boundary conditions KW - radioactive waste KW - boreholes KW - underground installations KW - waste disposal KW - Yucca Mountain KW - Nevada KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50066847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+Drift+Scale+Heater+Test+at+Yucca+Mountain%2C+Nevada&rft.au=Peters%2C+Mark%3BBoyle%2C+William%3BDatta%2C+Robin%3BElkins%2C+Ned%3BWagner%2C+Ralph%3BWeaver%2C+Douglas%3BYasek%2C+Robert%3BAnonymous&rft.aulast=Peters&rft.aufirst=Mark&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=F329&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - boreholes; boundary conditions; Drift Scale Heater Test; engineering properties; ground-penetrating radar; monitoring; Nevada; Nye County Nevada; radar methods; radioactive waste; resistivity; site exploration; underground installations; United States; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Fourier transform infrared evidence for connectivity between CuB and glutamic acid 286 in cytochrome bo3 from Escherichia coli. AN - 79353574; 9341207 AB - Photodissociation of fully reduced, carbonmonoxy cytochrome bo3 causes ultrafast transfer of carbon monoxide (C triple bond O) from heme iron to CuB in the binuclear site. At low temperatures, the C triple bond O remains bound to CuB for extended times. Here, we show that the binding of C triple bond O to CuB perturbs the IR stretch of an un-ionized carboxylic acid residue, which is identified as Glu286 by mutation to Asp or to Cys. Before photodissociation, the carbonyl (C=O)-stretching frequency of this carboxylic acid residue is 1726 cm-1 for Glu286 and 1759 cm-1 for Glu286Asp. These frequencies are definitive evidence for un-ionized R-COOH and suggest that the carboxylic acids are hydrogen-bonded, though more extensively in Glu286. In Glu286Cys, this IR feature is lost altogether. We ascribe the frequency shifts in the C=O IR absorptions to the effects of binding photodissociated C triple bond O to CuB, which are relay ed to the 286 locus. Conversely, the 2065 cm-1 C triple bond O stretch of CuB-CO is markedly affected by both mutations. These effects are ascribed to changes in the Lewis acidity of CuB, or to displacement of a CuB histidine ligand by C triple bond O. C triple bond O binding to CuB also induces a downshift of an IR band which can be attributed to an aromatic C-H stretch, possibly of histidine imidazole, at about 3140 cm-1. The results suggest an easily polarizable, through-bond connectivity between one of the histidine CuB ligands and the carboxylic group of Glu286. A chain of bound water molecules may provide such a connection, which is of interest in the context of the proton pump mechanism of the heme-copper oxidases. JF - Biochemistry AU - Puustinen, A AU - Bailey, J A AU - Dyer, R B AU - Mecklenburg, S L AU - Wikström, M AU - Woodruff, W H AD - Bioscience and Biotechnology Group (CST-4), Chemical Sciences and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. Y1 - 1997/10/28/ PY - 1997 DA - 1997 Oct 28 SP - 13195 EP - 13200 VL - 36 IS - 43 SN - 0006-2960, 0006-2960 KW - Cytochromes KW - 0 KW - Escherichia coli Proteins KW - Ligands KW - cytochrome bo3, E coli KW - Glutamic Acid KW - 3KX376GY7L KW - Histidine KW - 4QD397987E KW - Copper KW - 789U1901C5 KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Spectroscopy, Fourier Transform Infrared KW - Photolysis KW - Dimerization KW - Hydrogen Bonding KW - Glutamic Acid -- chemistry KW - Cytochromes -- chemistry KW - Escherichia coli -- enzymology KW - Cytochromes -- genetics KW - Copper -- chemistry KW - Glutamic Acid -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79353574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Fourier+transform+infrared+evidence+for+connectivity+between+CuB+and+glutamic+acid+286+in+cytochrome+bo3+from+Escherichia+coli.&rft.au=Puustinen%2C+A%3BBailey%2C+J+A%3BDyer%2C+R+B%3BMecklenburg%2C+S+L%3BWikstr%C3%B6m%2C+M%3BWoodruff%2C+W+H&rft.aulast=Puustinen&rft.aufirst=A&rft.date=1997-10-28&rft.volume=36&rft.issue=43&rft.spage=13195&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-11-17 N1 - Date created - 1997-11-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Low-resolution gamma-ray measurements of process hold-up. AN - 79552374; 9463876 AB - This tool, consisting of software with a compact detector, an M3CA, and an Intermec datalogger: 1. acquires and manages several hundred spectra in an hour; 2. produces prompt and reliable quantitative analyses; 3. is self-powered, easily carried and operated by a single user; 4. accomodates varying degrees of user expertise; 5. corrects for the effects of equipment geometry; 6. corrects for the effects of equipment attenuation; 7. tolerates facility variables such as temperature fluctuations and equipment accessibility; 8. has been subjected to quality testing under field conditions; and 9. does not require extensive specialized training for the operators. JF - Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine AU - Sprinkle, J K AU - Cole, R AU - Collins, M L AU - Hsue, S T AU - Russo, P A AU - Siebelist, R AU - Smith, H A AU - Ceo, R N AU - Smith, S E AD - Los Alamos National Laboratory, NM 87545, USA. PY - 1997 SP - 1529 EP - 1534 VL - 48 IS - 10-12 SN - 0969-8043, 0969-8043 KW - Radioactive Waste KW - 0 KW - Index Medicus KW - Power Plants KW - Calibration KW - Gamma Rays KW - Radiometry -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79552374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+radiation+and+isotopes+%3A+including+data%2C+instrumentation+and+methods+for+use+in+agriculture%2C+industry+and+medicine&rft.atitle=Low-resolution+gamma-ray+measurements+of+process+hold-up.&rft.au=Sprinkle%2C+J+K%3BCole%2C+R%3BCollins%2C+M+L%3BHsue%2C+S+T%3BRusso%2C+P+A%3BSiebelist%2C+R%3BSmith%2C+H+A%3BCeo%2C+R+N%3BSmith%2C+S+E&rft.aulast=Sprinkle&rft.aufirst=J&rft.date=1997-10-01&rft.volume=48&rft.issue=10-12&rft.spage=1529&rft.isbn=&rft.btitle=&rft.title=Applied+radiation+and+isotopes+%3A+including+data%2C+instrumentation+and+methods+for+use+in+agriculture%2C+industry+and+medicine&rft.issn=09698043&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-05 N1 - Date created - 1998-03-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Dose reconstruction for weapons experiments involving 140La at Los Alamos National Laboratory, 1944-1962. AN - 79314433; 9314221 AB - A series of 254 weapons design experiments was conducted by Los Alamos National Laboratory from 1944 through 1962 and resulted in the dispersal of approximately 11 PBq (300 kCi) of radioactive 140La. All shots occurred at Point Able in Bayo Canyon, east of the Los Alamos townsite. Public interest and the Government Accounting Office probe precipitated a dose reconstruction to assess potential exposures to members of the public. The information available for each shot included explosive charge size, date and time of explosion, and shot activity. Detailed meteorological data were not available for the majority of the shots, requiring the development of statistically representative meteorological data. A wind rose was developed specific to the afternoon-evening time of the shots, and the wind frequency in each sector was used to determine the fraction of activity dispersed towards each hypothetical receptor. HOTSPOT 7, a Gaussian plume-based dispersion model, was used to determine the average dose per sector per unit of shot activity. The dose from penetrating radiation from ground-deposited 140La was greater by several orders of magnitude than the dose from inhalation and immersion. The highest doses to a permanent resident probably occurred in the easternmost part of the Los Alamos townsite. The highest annual dose occurred in 1955 and was approximately 0.23 mSv. Assuming an individual had been at the location of maximum potential exposure in the Los Alamos townsite continuously throughout the experiments, the total dose from the 18-y series would have been approximately 1.4 mSv with an average dose of approximately 0.09 mSv y(-1). Doses at nearby Totavi trailer park, San Ildefonso Pueblo, and Santa Clara Pueblo were approximately 75%, 40%, and 15%, respectively, of those at Los Alamos. Visitors to nearby public areas received negligible doses. JF - Health physics AU - Kraig, D H AD - Los Alamos National Laboratory, NM 87545, USA. Y1 - 1997/10// PY - 1997 DA - October 1997 SP - 620 EP - 628 VL - 73 IS - 4 SN - 0017-9078, 0017-9078 KW - Radioisotopes KW - 0 KW - Lanthanum KW - 6I3K30563S KW - Index Medicus KW - United States KW - Regression Analysis KW - Radiation Dosage KW - Meteorological Concepts KW - Humans KW - Normal Distribution KW - New Mexico KW - Models, Theoretical KW - Occupational Exposure KW - Nuclear Warfare KW - Environmental Exposure KW - Nuclear Reactors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79314433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Dose+reconstruction+for+weapons+experiments+involving+140La+at+Los+Alamos+National+Laboratory%2C+1944-1962.&rft.au=Kraig%2C+D+H&rft.aulast=Kraig&rft.aufirst=D&rft.date=1997-10-01&rft.volume=73&rft.issue=4&rft.spage=620&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-10-23 N1 - Date created - 1997-10-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Fifty years of plutonium exposure to the Manhattan Project plutonium workers: an update. AN - 79310940; 9314220 AB - Twenty-six white male workers who did the original plutonium research and development work at Los Alamos have been examined periodically over the past 50 y to identify possible health effects from internal plutonium depositions. Their effective doses range from 0.1 to 7.2 Sv with a median value of 1.25 Sv. As of the end of 1994, 7 individuals have died compared with an expected 16 deaths based on mortality rates of U.S. white males in the general population. The standardized mortality ratio (SMR) is 0.43. When compared with 876 unexposed Los Alamos workers of the same period, the plutonium worker's mortality rate was also not elevated (SMR = 0.77). The 19 living persons have diseases and physical changes characteristic of a male population with a median age of 72 y (range = 69 to 86 y). Eight of the twenty-six workers have been diagnosed as having one or more cancers, which is within the expected range. The underlying cause of death in three of the seven deceased persons was from cancer, namely cancer of prostate, lung, and bone. Mortality from all cancers was not statistically elevated. The effective doses from plutonium to these individuals are compared with current radiation protection guidelines. JF - Health physics AU - Voelz, G L AU - Lawrence, J N AU - Johnson, E R AD - Los Alamos National Laboratory, Occupational Medicine Group, NM 87545, USA. Y1 - 1997/10// PY - 1997 DA - October 1997 SP - 611 EP - 619 VL - 73 IS - 4 SN - 0017-9078, 0017-9078 KW - Plutonium KW - 53023GN24M KW - Index Medicus KW - United States KW - Software KW - Prostatic Neoplasms -- mortality KW - Aged, 80 and over KW - Humans KW - Bone Neoplasms -- mortality KW - Aged KW - Models, Statistical KW - Lung Neoplasms -- mortality KW - New Mexico KW - Time Factors KW - Male KW - Cause of Death KW - Plutonium -- pharmacokinetics KW - Occupational Exposure KW - Neoplasms -- mortality KW - Nuclear Warfare KW - Plutonium -- urine KW - Nuclear Reactors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79310940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Fifty+years+of+plutonium+exposure+to+the+Manhattan+Project+plutonium+workers%3A+an+update.&rft.au=Voelz%2C+G+L%3BLawrence%2C+J+N%3BJohnson%2C+E+R&rft.aulast=Voelz&rft.aufirst=G&rft.date=1997-10-01&rft.volume=73&rft.issue=4&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-10-23 N1 - Date created - 1997-10-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - The first skull of Australopithecus boisei AN - 52664505; 1997-071839 JF - Nature (London) AU - Suwa, Gen AU - Asfaw, Berhane AU - Beyene, Yonas AU - White, Tim D AU - Katoh, Shigehiro AU - Nagaoka, Shinji AU - Nakaya, Hideo AU - Uzawa, Kazuhiro AU - Renne, Paul AU - WoldeGabriel, Giday Y1 - 1997/10// PY - 1997 DA - October 1997 SP - 489 EP - 492 PB - Macmillan Journals, London VL - 389 IS - 6650 SN - 0028-0836, 0028-0836 KW - Australopithecus boisei KW - anthropology KW - East Africa KW - Homo KW - Australopithecinae KW - Cenozoic KW - Theria KW - skull KW - Ethiopia KW - taxonomy KW - Eutheria KW - lower Pleistocene KW - Chordata KW - Quaternary KW - Australopithecus KW - Mammalia KW - Primates KW - Hominidae KW - morphology KW - classification KW - Pleistocene KW - Konso Ethiopia KW - Africa KW - Vertebrata KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52664505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=The+first+skull+of+Australopithecus+boisei&rft.au=Suwa%2C+Gen%3BAsfaw%2C+Berhane%3BBeyene%2C+Yonas%3BWhite%2C+Tim+D%3BKatoh%2C+Shigehiro%3BNagaoka%2C+Shinji%3BNakaya%2C+Hideo%3BUzawa%2C+Kazuhiro%3BRenne%2C+Paul%3BWoldeGabriel%2C+Giday&rft.aulast=Suwa&rft.aufirst=Gen&rft.date=1997-10-01&rft.volume=389&rft.issue=6650&rft.spage=489&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/ L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - Africa; anthropology; Australopithecinae; Australopithecus; Australopithecus boisei; Cenozoic; Chordata; classification; East Africa; Ethiopia; Eutheria; Hominidae; Homo; Konso Ethiopia; lower Pleistocene; Mammalia; morphology; Pleistocene; Primates; Quaternary; skull; taxonomy; Tetrapoda; Theria; Vertebrata ER - TY - JOUR T1 - Carbonate leaching of uranium from contaminated soils AN - 52281060; 2001-005903 JF - Environmental Science & Technology, ES & T AU - Mason, C F V AU - Turney, W R J AU - Thomson, B M AU - Lu, N AU - Longmire, P A AU - Chisholm-Brause, C J Y1 - 1997/10// PY - 1997 DA - October 1997 SP - 2707 EP - 2711 PB - American Chemical Society, Washington, DC VL - 31 IS - 10 SN - 0013-936X, 0013-936X KW - United States KW - soils KW - monitoring KW - radioactivity KW - pollutants KW - complexing KW - Fernald Nuclear Facility KW - pollution KW - migration of elements KW - solubility KW - environmental analysis KW - remediation KW - radioactive waste KW - waste management KW - metals KW - nuclear facilities KW - uranium KW - waste disposal KW - leaching KW - actinides KW - Ohio KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52281060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Carbonate+leaching+of+uranium+from+contaminated+soils&rft.au=Mason%2C+C+F+V%3BTurney%2C+W+R+J%3BThomson%2C+B+M%3BLu%2C+N%3BLongmire%2C+P+A%3BChisholm-Brause%2C+C+J&rft.aulast=Mason&rft.aufirst=C+F&rft.date=1997-10-01&rft.volume=31&rft.issue=10&rft.spage=2707&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 18 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; complexing; environmental analysis; Fernald Nuclear Facility; leaching; metals; migration of elements; monitoring; nuclear facilities; Ohio; pollutants; pollution; radioactive waste; radioactivity; remediation; soils; solubility; United States; uranium; waste disposal; waste management ER - TY - JOUR T1 - Runoff from a semiarid ponderosa pine hillslope in New Mexico AN - 52056238; 2002-072100 JF - Water Resources Research AU - Wilson, Bradford P AU - Newman, Brent D AU - Brandes, David AU - Davenport, David W AU - Reid, Kevin Y1 - 1997/10// PY - 1997 DA - October 1997 SP - 2301 EP - 2314 PB - American Geophysical Union, Washington, DC VL - 33 IS - 10 SN - 0043-1397, 0043-1397 KW - United States KW - hydrology KW - hills KW - terrestrial environment KW - semi-arid environment KW - sedimentation KW - Pajarito Plateau KW - atmospheric precipitation KW - New Mexico KW - slope environment KW - marine environment KW - runoff KW - storms KW - soil-water balance KW - north-central New Mexico KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52056238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Runoff+from+a+semiarid+ponderosa+pine+hillslope+in+New+Mexico&rft.au=Wilson%2C+Bradford+P%3BNewman%2C+Brent+D%3BBrandes%2C+David%3BDavenport%2C+David+W%3BReid%2C+Kevin&rft.aulast=Wilson&rft.aufirst=Bradford&rft.date=1997-10-01&rft.volume=33&rft.issue=10&rft.spage=2301&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. sects. N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; hills; hydrology; marine environment; New Mexico; north-central New Mexico; Pajarito Plateau; runoff; sedimentation; semi-arid environment; slope environment; soil-water balance; storms; terrestrial environment; United States ER - TY - JOUR T1 - Turbulent transport and deposition of the Ito pyroclastic flow; determinations using anisotropy of magnetic susceptibility AN - 50169463; 1998-007632 AB - The Ito pyroclastic flow erupted about 22,000 years ago from Aira caldera in southern Kyushu, Japan. Flow directions were determined by anisotropy of magnetic susceptibility (AMS), which measured the preferential alignment of magnetite microphenocrysts, usually < or =0.25 mm in diameter. The microphenocrysts are aligned with the long axis of the clasts during strain and fracture in the vent. The grains are then deposited parallel to the flow direction with an imbrication. There is no evidence of rolling of clasts or nonflow parallel lineations, and thus AMS can be used to determine flow directions that occurred immediately before deposition. Beyond 30 km from the center of the caldera, flow directions were predominantly down paleogradient, indicating expanded flow and that the depositional system was gravity driven and largely decoupled from the transport system. Within 30 km, measured flow directions are random, indicating that sedimentation occurred from a depositional system that was closely coupled to the turbulent transport system. Individual flow directions at all sites except one varied more than the analytical error, demonstrating that a variety of flow directions existed even within a small area of the flow. This implies that the depositional system was turbulent. Copyright 1997 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Baer, E M AU - Fisher, R V AU - Fuller, M AU - Valentine, G Y1 - 1997/10// PY - 1997 DA - October 1997 SP - 22 EP - 22,586 PB - American Geophysical Union, Washington, DC VL - 102 IS - B10 SN - 0148-0227, 0148-0227 KW - flow direction KW - Kyushu KW - Far East KW - Quaternary KW - paleomagnetism KW - turbulence KW - Ito Ignimbrite KW - Cenozoic KW - Kagoshima Japan KW - transport KW - pyroclastic flows KW - magnetic susceptibility KW - Pleistocene KW - oxides KW - Asia KW - Japan KW - Aira Caldera KW - magnetite KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50169463?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Turbulent+transport+and+deposition+of+the+Ito+pyroclastic+flow%3B+determinations+using+anisotropy+of+magnetic+susceptibility&rft.au=Baer%2C+E+M%3BFisher%2C+R+V%3BFuller%2C+M%3BValentine%2C+G&rft.aulast=Baer&rft.aufirst=E&rft.date=1997-10-01&rft.volume=102&rft.issue=B10&rft.spage=22&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F96JB01277 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 74 N1 - PubXState - DC N1 - Document feature - illus. incl. sect., 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Aira Caldera; Asia; Cenozoic; Far East; flow direction; Ito Ignimbrite; Japan; Kagoshima Japan; Kyushu; magnetic susceptibility; magnetite; oxides; paleomagnetism; Pleistocene; pyroclastic flows; Quaternary; transport; turbulence DO - http://dx.doi.org/10.1029/96JB01277 ER - TY - JOUR T1 - Carbonate leaching of uranium from contaminated soils AN - 16260717; 4249477 AB - Uranium (U) was successfully removed from contaminated soils from the Fernald Environmental Management Project (FEMP) site near Fernald, Ohio. The laboratory column leach process, referred to as the simulated heap leach process, using 0.5 M sodium bicarbonate as the dominant reagent, was able to achieve uranium removals of 75-90%, corresponding approximately to the percentage of uranium in the oxidized state. Parametric optimization studies are reported. The dissolution of uranium took place in two stages: a rapid desorption associated with soil surfaces and a slow step associated with diffusion of uranium toward solid surfaces. In addition, use of the oxidizing agent, sodium peroxide, improved uranium removal due to oxidation of U(IV), enhancing the solubility of the uranium. The results suggest that the process will be effective for field scale remediation of uranium-contaminated soils because of the efficiency, mild complexing agent employed, lack of prescreening of the soil and the simple equipment necessary. Two relevant companion studies have recently been completed. The first, a scale-up demonstration, using a Los Alamos site, confirms the approach to be effective up to 1 ton of soil and the second, a cost study, suggests this method is economically competitive for large soil volumes (>1000 cu yd) when combined with a radionuclide presort. JF - ENVIRON. SCI. TECHNOL. AU - Mason, CFV AU - Turney, WRJR AU - Thomson, B M AU - Lu, N AU - Longmire, P A AU - Chisholm-Brause, C J AD - CST-7, Environmental Science and Waste Technology, Chemical Science & Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA Y1 - 1997/10// PY - 1997 DA - Oct 1997 SP - 2707 EP - 2711 VL - 31 IS - 10 SN - 0013-936X, 0013-936X KW - USA, Ohio, Fernald KW - Water Resources Abstracts; Pollution Abstracts KW - P 8000:RADIATION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16260717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ENVIRON.+SCI.+TECHNOL.&rft.atitle=Carbonate+leaching+of+uranium+from+contaminated+soils&rft.au=Mason%2C+CFV%3BTurney%2C+WRJR%3BThomson%2C+B+M%3BLu%2C+N%3BLongmire%2C+P+A%3BChisholm-Brause%2C+C+J&rft.aulast=Mason&rft.aufirst=CFV&rft.date=1997-10-01&rft.volume=31&rft.issue=10&rft.spage=2707&rft.isbn=&rft.btitle=&rft.title=ENVIRON.+SCI.+TECHNOL.&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - The DNA repair endonuclease XPG binds to proliferating cell nuclear antigen (PCNA) and shares sequence elements with the PCNA-binding regions of FEN-1 and cyclin-dependent kinase inhibitor p21. AN - 79305617; 9305916 AB - Proliferating cell nuclear antigen (PCNA) is a DNA polymerase accessory factor that is required for DNA replication during S phase of the cell cycle and for resynthesis during nucleotide excision repair of damaged DNA. PCNA binds to flap endonuclease 1 (FEN-1), a structure-specific endonuclease involved in DNA replication. Here we report the direct physical interaction of PCNA with xeroderma pigmentosum (XP) G, a structure-specific repair endonuclease that is homologous to FEN-1. We have identified a 28-amino acid region of human FEN-1 (residues 328-355) and a 29-amino acid region of human XPG (residues 981-1009) that contains the PCNA binding activity. These regions share key hydrophobic residues with the PCNA-binding domain of the cyclin-dependent kinase inhibitor p21(Waf1/Cip1), and all three competed with one another for binding to PCNA. A conserved arginine in FEN-1 (Arg339) and XPG (Arg992) was found to be crucial for PCNA binding activity. R992A and R992E mutant forms of XPG failed to fully reconstitute nucleotide excision repair in an in vivo complementation assay. These results raise the possibility of a mechanistic linkage between excision and repair synthesis that is mediated by PCNA. JF - The Journal of biological chemistry AU - Gary, R AU - Ludwig, D L AU - Cornelius, H L AU - MacInnes, M A AU - Park, M S AD - Life Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. Y1 - 1997/09/26/ PY - 1997 DA - 1997 Sep 26 SP - 24522 EP - 24529 VL - 272 IS - 39 SN - 0021-9258, 0021-9258 KW - CDKN1A protein, human KW - 0 KW - Cyclin-Dependent Kinase Inhibitor p21 KW - Cyclins KW - DNA excision repair protein ERCC-5 KW - DNA-Binding Proteins KW - Nuclear Proteins KW - Proliferating Cell Nuclear Antigen KW - Transcription Factors KW - Endodeoxyribonucleases KW - EC 3.1.- KW - Endonucleases KW - Flap Endonucleases KW - FEN1 protein, human KW - EC 3.1.11.- KW - Index Medicus KW - Humans KW - Molecular Sequence Data KW - Amino Acid Sequence KW - Sequence Homology, Amino Acid KW - Protein Binding KW - Mutagenesis KW - Endodeoxyribonucleases -- chemistry KW - DNA Repair KW - DNA-Binding Proteins -- chemistry KW - Cyclins -- chemistry KW - DNA-Binding Proteins -- genetics KW - Cyclins -- metabolism KW - Endodeoxyribonucleases -- metabolism KW - Proliferating Cell Nuclear Antigen -- metabolism KW - DNA-Binding Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79305617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+biological+chemistry&rft.atitle=The+DNA+repair+endonuclease+XPG+binds+to+proliferating+cell+nuclear+antigen+%28PCNA%29+and+shares+sequence+elements+with+the+PCNA-binding+regions+of+FEN-1+and+cyclin-dependent+kinase+inhibitor+p21.&rft.au=Gary%2C+R%3BLudwig%2C+D+L%3BCornelius%2C+H+L%3BMacInnes%2C+M+A%3BPark%2C+M+S&rft.aulast=Gary&rft.aufirst=R&rft.date=1997-09-26&rft.volume=272&rft.issue=39&rft.spage=24522&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-10-23 N1 - Date created - 1997-10-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Alpha particles initiate biological production of superoxide anions and hydrogen peroxide in human cells. AN - 79298163; 9307280 AB - The mechanism(s) by which high-linear energy transfer a particles, like those emitted by inhaled radon and radon daughters, cause lung cancer has not been elucidated. Conceivably, DNA damage that is induced by a particles may be mediated by the metabolic generation of reactive oxygen species (ROS), in addition to direct a particle-DNA interactions and hydroxyl radical-DNA interactions. Using normal human lung fibroblasts, we investigated the hypothesis that densely ionizing alpha particles may induce the intracellular generation of superoxide (O2.-) and hydrogen peroxide (H2O2). Ethidium bromide and 2',7'-dichlorofluorescein, fluorescent products of the membrane-permeable dyes hydroethidine and 2',7'-dichlorofluorescin diacetate, respectively, were used to monitor the intracellular production of O2.- and H2O2, respectively, by flow cytometry. Compared to sham-irradiated cells, fibroblasts that were exposed to alpha particles (0.4-19 cGy) had significant increases in intracellular O2.- production, along with concomitant increases in H2O2 production. Further analyses suggest that the plasma membrane-bound NADPH-oxidase is primarily responsible for this increased intracellular generation of ROS and that the ROS response does not require direct nuclear or cellular "hits" by the a particles. In this latter regard, we additionally report that unirradiated cells also show the ROS response when they are incubated with serum-containing culture medium that has been exposed to a particles or when they are incubated with supernatants from a-irradiated cells. Our overall results support the possibility that a particles, at least in part, may mediate their DNA-damaging effects indirectly via a ROS-related mechanism. JF - Cancer research AU - Narayanan, P K AU - Goodwin, E H AU - Lehnert, B E AD - Cell and Molecular Biology Group, Life Sciences Division, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1997/09/15/ PY - 1997 DA - 1997 Sep 15 SP - 3963 EP - 3971 VL - 57 IS - 18 SN - 0008-5472, 0008-5472 KW - Culture Media KW - 0 KW - Reactive Oxygen Species KW - Superoxides KW - 11062-77-4 KW - Hydrogen Peroxide KW - BBX060AN9V KW - Index Medicus KW - Space life sciences KW - Oxidation-Reduction KW - Cells, Cultured KW - Humans KW - Lung -- cytology KW - Fibroblasts -- radiation effects KW - Dose-Response Relationship, Radiation KW - Time Factors KW - Reactive Oxygen Species -- metabolism KW - Superoxides -- metabolism KW - Hydrogen Peroxide -- metabolism KW - Alpha Particles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79298163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cancer+research&rft.atitle=Alpha+particles+initiate+biological+production+of+superoxide+anions+and+hydrogen+peroxide+in+human+cells.&rft.au=Narayanan%2C+P+K%3BGoodwin%2C+E+H%3BLehnert%2C+B+E&rft.aulast=Narayanan&rft.aufirst=P&rft.date=1997-09-15&rft.volume=57&rft.issue=18&rft.spage=3963&rft.isbn=&rft.btitle=&rft.title=Cancer+research&rft.issn=00085472&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-10-20 N1 - Date created - 1997-10-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Mineral properties and their contributions to particle toxicity. AN - 79467299; 9400692 AB - It has been recognized since at least as early as the mid-1500s that inhaled minerals (i.e., inorganic particles) can pose a risk. Extensive research has focused on the biological mechanisms responsible for asbestos- and silica-induced diseases, but much less attention has been paid to the mineralogical properties and geochemical mechanisms that might influence a mineral's biological activity. Several important mineralogical characteristics control a mineral's reactivity in geochemical reactions and are likely to determine its biological reactivity. In addition to the traditionally considered variables of particle size and shape, mineralogical characteristics such as dissolution behavior, ion exchange, sorptive properties, and the nature of the mineral surface (e.g., surface reactivity) play important roles in determining the toxicity and carcinogenicity of a particle. Ultimately, a mineral's species (which provides direct information on a mineral's structure and composition) is probably one of the most significant yet most neglected factors that must be considered in studies of toxicity and carcinogenicity. JF - Environmental health perspectives AU - Guthrie, G D AD - Geology and Geochemistry Group, Los Alamos National Laboratory, New Mexico, USA. guthrie@wmich.edu Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 1003 EP - 1011 VL - 105 Suppl 5 SN - 0091-6765, 0091-6765 KW - Mineral Fibers KW - 0 KW - Minerals KW - Index Medicus KW - Animals KW - Particle Size KW - Humans KW - Minerals -- chemistry KW - Mineral Fibers -- analysis KW - Minerals -- toxicity KW - Mineral Fibers -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79467299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Mineral+properties+and+their+contributions+to+particle+toxicity.&rft.au=Guthrie%2C+G+D&rft.aulast=Guthrie&rft.aufirst=G&rft.date=1997-09-01&rft.volume=105+Suppl+5&rft.issue=&rft.spage=1003&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-01-30 N1 - Date created - 1998-01-30 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Probl Khig. 1987;12:133-41 [2831534] Pol J Occup Med Environ Health. 1993;6(1):27-34 [8219895] S Afr Med J. 1975 Jul 19;49(31):1263-5 [1171529] Lab Invest. 1975 Sep;33(3):342-6 [1160354] Int Arch Occup Environ Health. 1979 Apr 20;43(2):93-7 [220195] Ann N Y Acad Sci. 1979;330:423-32 [294193] C R Seances Acad Sci D. 1980 Sep 15;291(2):167-9 [6253101] Environ Res. 1981 Dec;26(2):503-20 [6274633] Gig Tr Prof Zabol. 1984 Mar;(3):48-51 [6325307] Am J Respir Cell Mol Biol. 1994 Nov;11(5):522-30 [7946382] Free Radic Res. 1995 Dec;23(6):593-614 [8574353] AMA Arch Ind Hyg Occup Med. 1951 Jan;3(1):1-43 [14789264] Br J Ind Med. 1956 Oct;13(4):251-9 [13364154] JAMA. 1964 Apr 6;188:22-6 [14107207] N Engl J Med. 1965 Mar 18;272:560-5 [14248731] Environ Res. 1984 Oct;35(1):277-92 [6092048] Farmakol Toksikol. 1984 Sep-Oct;47(5):63-7 [6094237] Br J Cancer. 1985 May;51(5):727-30 [2986668] Probl Khig. 1985;10:94-100 [3012517] Gig Tr Prof Zabol. 1986 Sep;(9):17-9 [3021595] Int J Cancer. 1987 Jan 15;39(1):10-7 [3025107] Cancer Res. 1987 Mar 15;47(6):1681-6 [3028612] Environ Res. 1988 Aug;46(2):142-52 [2841105] Am Rev Respir Dis. 1988 Nov;138(5):1213-9 [2849348] Environ Health Perspect. 1989 May;81:91-4 [2667992] Gig Sanit. 1989 Aug;(8):7-10 [2556331] J Toxicol Environ Health. 1991 Jul;33(3):303-15 [1649918] Toxicol Pathol. 1991;19(4 Pt 1):398-405 [1667554] Free Radic Biol Med. 1993 May;14(5):463-72 [8394268] Ann N Y Acad Sci. 1965 Dec 31;132(1):215-34 [5219548] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A new mechanism for DNA alterations induced by alpha particles such as those emitted by radon and radon progeny. AN - 79466993; 9400706 AB - The mechanism(s) by which alpha (alpha) particles like those emitted from inhaled radon and radon progeny cause their carcinogenic effects in the lung remains unclear. Although direct nuclear traversals by alpha-particles may be involved in mediating these outcomes, increasing evidence indicates that a particles can cause alterations in DNA in the absence of direct hits to cell nuclei. Using the occurrence of excessive sister chromatid exchanges (SCE) as an index of DNA damage in human lung fibroblasts, we investigated the hypothesis that alpha-particles may induce DNA damage through the generation of extracellular factors. We have found that a relatively low dose of alpha-particles can result in the generation of extracellular factors, which, upon transfer to unexposed normal human cells, can cause excessive SCE to an extent equivalent to that observed when the cells are directly irradiated with the same irradiation dose. A short-lived, SCE-inducing factor(s) is generated in alpha-irradiated culture medium containing serum in the absence of cells. A more persistent SCE-inducing factor(s), which can survive freeze-thaw and is heat labile is produced by fibroblasts after exposure to the alpha-particles. These results indicate that the initiating target for alpha-particle-induced genetic changes can be larger than a cell's nucleus or even a whole cell. How transmissible factors like those observed here in vitro may extend to the in vivo condition in the context of a-particle-induced carcinogenesis in the respiratory tract remains to be determined. JF - Environmental health perspectives AU - Lehnert, B E AU - Goodwin, E H AD - Life Sciences Division, Los Alamos National Laboratory, New Mexico 87545, USA. lehnert@telomere.lanl.gov Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 1095 EP - 1101 VL - 105 Suppl 5 SN - 0091-6765, 0091-6765 KW - Air Pollutants, Radioactive KW - 0 KW - Culture Media KW - Radon Daughters KW - DNA KW - 9007-49-2 KW - Radon KW - Q74S4N8N1G KW - Index Medicus KW - Extracellular Space -- radiation effects KW - Extracellular Space -- metabolism KW - Cells, Cultured KW - Humans KW - DNA Damage -- radiation effects KW - Sister Chromatid Exchange -- radiation effects KW - Fibroblasts KW - Alpha Particles KW - DNA -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79466993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=A+new+mechanism+for+DNA+alterations+induced+by+alpha+particles+such+as+those+emitted+by+radon+and+radon+progeny.&rft.au=Lehnert%2C+B+E%3BGoodwin%2C+E+H&rft.aulast=Lehnert&rft.aufirst=B&rft.date=1997-09-01&rft.volume=105+Suppl+5&rft.issue=&rft.spage=1095&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-01-30 N1 - Date created - 1998-01-30 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Int Rev Cytol. 1977;49:55-97 [324942] Chromosoma. 1974;48(4):341-53 [4141298] Cytogenet Cell Genet. 1980;27(2-3):155-61 [6967388] Proc Natl Acad Sci U S A. 1981 Mar;78(3):1868-72 [6940194] Health Phys. 1983 Aug;45(2):331-7 [6885432] J Natl Cancer Inst. 1983 Sep;71(3):489-99 [6577225] Cancer Genet Cytogenet. 1984 May;12(1):73-83 [6713361] Radiat Res Suppl. 1985;8:S5-12 [3867088] Radiat Res. 1987 Jun;110(3):396-412 [3588845] Int J Radiat Biol Relat Stud Phys Chem Med. 1987 Dec;52(6):871-82 [3500928] Am Rev Respir Dis. 1988 Jan;137(1):221-42 [3276256] Mutat Res. 1988 Mar;195(2):137-49 [3277035] Int J Radiat Biol Relat Stud Phys Chem Med. 1988 Jun;53(6):909-15 [3259560] Int J Radiat Biol. 1988 Nov;54(5):761-71 [2902170] JAPCA. 1989 Jul;39(7):915-20 [2769311] Arch Biochem Biophys. 1990 Apr;278(1):238-44 [2321962] Mutat Res. 1990 May;238(3):223-33 [2342513] Mutat Res. 1990 Jul;244(3):233-8 [2366817] Radiat Res. 1990 Sep;123(3):304-10 [2217728] Int J Radiat Biol. 1990 Nov;58(5):799-811 [1977824] Radiat Res. 1991 Jun;126(3):280-8 [2034785] Radiat Res. 1991 Jul;127(1):64-74 [2068273] Radiat Res. 1991 Nov;128(2):204-9 [1947017] Nature. 1992 Feb 20;355(6362):674-5 [1741051] Nature. 1992 Feb 20;355(6362):738-40 [1741061] Mutat Res. 1992 Aug;268(2):217-21 [1379327] Cancer Res. 1992 Nov 15;52(22):6394-6 [1423287] Radiat Res. 1993 Jan;133(1):1-11 [8381975] Free Radic Biol Med. 1994 Jan;16(1):99-109 [8300000] Int J Radiat Biol. 1994 Jan;65(1):27-33 [7905906] Int J Radiat Biol. 1994 Jan;65(1):43-8 [7905908] Lancet. 1994 Oct 8;344(8928):987-8 [7934432] Cancer Res. 1994 Nov 15;54(22):5797-800 [7954402] Free Radic Biol Med. 1995 Jun;18(6):985-91 [7628734] Radiat Res. 1996 Mar;145(3):260-7 [8927692] J Toxicol Environ Health. 1996 Apr 19;47(6):535-52 [8614022] Science. 1964 Jan 17;143(3603):247-9 [14078362] Radiat Res. 1968 Jul;35(1):171-81 [5659668] Proc Soc Exp Biol Med. 1968 Oct;129(1):240-4 [5686521] Radiat Res. 1980 May;82(2):277-89 [6246560] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Performance testing of the Eberline RMS-II criticality accident monitor. AN - 79266123; 9287095 AB - The Plutonium Facility at Los Alamos uses Eberline RMS-II monitors as part of its criticality accident alarm system. The monitors are designed to accommodate a wide spectrum of criticality accident scenarios from both liquid and metal supercriticalities. A series of experiments were performed at the Los Alamos Critical Experiments Facility to evaluate the response of the monitor to a wide range of radiation transients. The primary objectives of the evaluation were to verify reliable and prompt latching of the criticality alarms in accordance with the performance criteria of ANSI/ANS-8.3-1986. The RMS-II monitor performed reliably during all of the experiments and was found to meet specific ANSI/ANS performance criteria for latching. JF - Health physics AU - Olsher, R H AD - Health Physics Measurement Group, Los Alamos National Laboratory, NM 87544, USA. Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 518 EP - 521 VL - 73 IS - 3 SN - 0017-9078, 0017-9078 KW - Index Medicus KW - Health Physics KW - Evaluation Studies as Topic KW - Radiation Protection KW - Humans KW - Radioactive Hazard Release -- prevention & control KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79266123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Performance+testing+of+the+Eberline+RMS-II+criticality+accident+monitor.&rft.au=Olsher%2C+R+H&rft.aulast=Olsher&rft.aufirst=R&rft.date=1997-09-01&rft.volume=73&rft.issue=3&rft.spage=518&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-09-25 N1 - Date created - 1997-09-25 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Tracer-based studies of soil water movement in semi-arid forests of New Mexico AN - 52689188; 1997-058283 AB - The related issues of water movement and contaminant transport in arid and semi-arid environments have generated considerable interest and concern in the last few decades. Essential to understanding these issues is knowledge of how water moves through the soils that form the uppermost part of the vadose zone. The use of tracers, both natural and artificially introduced, is proving to be an effective method for gaining such knowledge in dry regions, where investigation by other means is difficult. In this study, natural stable-isotope and chloride tracers were used to investigate water movement in the soils of a pinon-juniper woodland and of a ponderosa pine forest on the Pajarito Plateau in northern New Mexico. The objectives were to (1) estimate and compare near-surface flux rates and evaluate the importance of evaporation in the two communities, and (2) determine to what extent differences in flux rates and evaporation are due to differences in plant cover and/or soil hydraulic properties. The results of this study will aid in evaluating the potential for contaminant mobility in semi-arid systems such as the Pajarito Plateau and, in addition, will increase understanding of nutrient distributions and plant water use in semi-arid environments. The stable-isotope data indicate a similarity between the pinon-juniper and ponderosa communities with respect to evaporation: in both, it is restricted mainly to the upper 10 cm of soil. Chloride profiles from the two communities, on the other hand, show a distinct difference with respect to downward fluxes: in the ponderosa pine forest, these fluxes ( nearly equal 0.02 cm year (super -1) ) are an order of magnitude lower than those in the pinon-juniper woodland ( nearly equal 0.2 cm year (super -1) ), even though total precipitation is about 4 cm year (super -1) higher in the ponderosa pine forest. This difference, however, appears to be related not to plant cover, but to differences in soil hydraulic properties. The soils of the ponderosa pine forest contain clay-rich B horizons that appear to restrict downward movement of water through the soil matrix, whereas the soils of the pinon-juniper community have B horizons much lower in clay content. The effect of differing soil properties on water movement suggests that contaminant distributions will vary across the Pajarito Plateau. The data on soil water ages support this hypothesis: they indicate that water (and, thus, contaminants) moves through the soil matrix in less than a decade in some areas, whereas in other areas, water takes hundreds of years to pass through the entire soil profile. JF - Journal of Hydrology AU - Newman, Brent D AU - Campbell, Andrew R AU - Wilcox, Bradford P Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 251 EP - 270 PB - Elsevier, Amsterdam VL - 196 IS - 1-4 SN - 0022-1694, 0022-1694 KW - United States KW - terrestrial environment KW - oxygen KW - isotopes KW - semi-arid environment KW - Pajarito Plateau KW - halogens KW - unsaturated zone KW - New Mexico KW - Los Alamos County New Mexico KW - vegetation KW - stable isotopes KW - chloride ion KW - tracers KW - water regimes KW - deuterium KW - soils KW - hydrology KW - forests KW - chlorine KW - temperate environment KW - isotope ratios KW - O-18/O-16 KW - D/H KW - hydrogen KW - hydraulic conductivity KW - north-central New Mexico KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52689188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Tracer-based+studies+of+soil+water+movement+in+semi-arid+forests+of+New+Mexico&rft.au=Newman%2C+Brent+D%3BCampbell%2C+Andrew+R%3BWilcox%2C+Bradford+P&rft.aulast=Newman&rft.aufirst=Brent&rft.date=1997-09-01&rft.volume=196&rft.issue=1-4&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 28 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - chloride ion; chlorine; D/H; deuterium; forests; halogens; hydraulic conductivity; hydrogen; hydrology; isotope ratios; isotopes; Los Alamos County New Mexico; New Mexico; north-central New Mexico; O-18/O-16; oxygen; Pajarito Plateau; semi-arid environment; soils; stable isotopes; temperate environment; terrestrial environment; tracers; United States; unsaturated zone; vegetation; water regimes ER - TY - JOUR T1 - Early partial melting in the upper mantle; an A.E.M. study of a lherzolite experimentally annealed at hypersolidus conditions AN - 52648740; 1998-005125 AB - A natural spinel lherzolite (60% olivine, 25% enstatite, 13% Cr-diopside, and 2% Cr-spinel) was annealed and deformed at 1 GPa and 900-1000 degrees C in H (sub 2) O-saturated conditions and at f (sub O (sub 2) ) roughly corresponding to the fayalite-magnetite-quartz buffer. The topology and textural development of the glass (i.e. quenched melt) was investigated by analytical transmission electron microscopy. In addition to the large glass slots (?10 mu m) previously observed using scanning electron microscopy (Bussod, G.Y. and Christie, J.M., 1991, Textural development and melt topology in spinel lherzolite experimentally deformed at hypersolidus conditions, J. Petrol., special lherzolite issue, pp. 17-39), we detected intracrystalline glass droplets of 0.1-0.2 mu m within pyroxenes and olivine grains and intergranular isolated glass pockets 1 to 3 mu m wide at grain boundaries. X-ray microanalysis shows that the intracrystalline glass droplets are highly enriched in silica ( nearly equal 70 wt% SiO (sub 2) ), and depleted in MgO. Their shape and composition are similar in both pyroxenes and olivine grains. These droplets are characteristic of the phenomenon of early partial melting (EPM) previously observed in pyroxenes. The intergranular pockets are also SiO (sub 2) -rich (54 to 66 wt%); their Mg content increases with the size of the pocket (from 0 to 7.6 wt% MgO). These observations provide a plausible scenario for the very first stage of melt formation in the upper mantle. JF - Tectonophysics AU - Raterron, Paul AU - Bussod, Gilles Y AU - Doukhan, Nicole AU - Doukhan, Jean-Claude A2 - Mainprice, David A2 - Boudier, Francoise A2 - Bouchez, Jean-Luc Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 79 EP - 91 PB - Elsevier, Amsterdam VL - 279 IS - 1-4 SN - 0040-1951, 0040-1951 KW - silicates KW - igneous rocks KW - natural materials KW - partial melting KW - mantle KW - olivine group KW - melts KW - lherzolite KW - spinel lherzolite KW - pyroxene group KW - plutonic rocks KW - olivine KW - orthosilicates KW - glass materials KW - chain silicates KW - upper mantle KW - experimental studies KW - textures KW - silicate melts KW - deformation KW - TEM data KW - ultramafics KW - solid phase KW - nesosilicates KW - peridotites KW - annealing KW - 18:Solid-earth geophysics KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52648740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Early+partial+melting+in+the+upper+mantle%3B+an+A.E.M.+study+of+a+lherzolite+experimentally+annealed+at+hypersolidus+conditions&rft.au=Raterron%2C+Paul%3BBussod%2C+Gilles+Y%3BDoukhan%2C+Nicole%3BDoukhan%2C+Jean-Claude&rft.aulast=Raterron&rft.aufirst=Paul&rft.date=1997-09-01&rft.volume=279&rft.issue=1-4&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes an appendix; Special issue N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - annealing; chain silicates; deformation; experimental studies; glass materials; igneous rocks; lherzolite; mantle; melts; natural materials; nesosilicates; olivine; olivine group; orthosilicates; partial melting; peridotites; plutonic rocks; pyroxene group; silicate melts; silicates; solid phase; spinel lherzolite; TEM data; textures; ultramafics; upper mantle ER - TY - JOUR T1 - Environmental surveillance and compliance at Los Alamos during 1996 AN - 52413671; 2000-000031 AB - This report presents environmental data that characterize environmental performance and addresses compliance with environmental standards and requirements at Los Alamos National Laboratory (LANL or the Laboratory) during 1996. The Laboratory routinely monitors for radiation and for radioactive nonradioactive materials at Laboratory sites as well as in the surrounding region. LANL uses the monitoring results to determine compliance with appropriate standards and to identify potentially undesirable trends. Data were collected in 1996 to assess external penetrating radiation; quantities of airborne emissions; and concentrations of chemicals and radionuclides in ambient air, surface waters and groundwaters, the municipal water supply, soils and sediments, and foodstuffs. Using comparisons with standards and regulations, this report concludes that environmental effects from Laboratory operations are small and do not pose a demonstrable threat to the public, Laboratory employees, or the environment. Laboratory operations were in compliance with all major environmental regulations. JF - LA - Los Alamos Scientific Laboratory Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 328 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - water KW - United States KW - soils KW - monitoring KW - isotopes KW - radioactivity KW - pollutants KW - regulations KW - surface water KW - pollution KW - atmosphere KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - environmental analysis KW - ground water KW - radioactive isotopes KW - air KW - geochemistry KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52413671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1997-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Environmental+surveillance+and+compliance+at+Los+Alamos+during+1996&rft.title=Environmental+surveillance+and+compliance+at+Los+Alamos+during+1996&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98001874NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - air; atmosphere; environmental analysis; geochemistry; ground water; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; monitoring; New Mexico; pollutants; pollution; radioactive isotopes; radioactivity; regulations; soils; surface water; United States; water ER - TY - RPRT T1 - Overview of environmental surveillance and compliance at Los Alamos during 1996 AN - 52288472; 2001-001163 AB - After introductory remarks about the National Lab, the report discusses background radiation, human-produced radiation, radionuclide migration, doses, and health physics risk; the environmental programs at LANL including environmental protection, restoration, waste management, quality assurance, environmental oversight, environmental safety and training; environmental monitoring of external penetrating radiation, surface waters, sediments, soils, foodstuffs, and associated biota; and environmental compliance with existing regulations. JF - Overview of environmental surveillance and compliance at Los Alamos during 1996 Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 16 VL - LALP-97-150 KW - United States KW - soils KW - monitoring KW - isotopes KW - regulations KW - surface water KW - pollution KW - New Mexico KW - migration of elements KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - preventive measures KW - biota KW - remediation KW - safety KW - radioactive isotopes KW - detection KW - sediments KW - ecology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52288472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1997-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Overview+of+environmental+surveillance+and+compliance+at+Los+Alamos+during+1996&rft.title=Overview+of+environmental+surveillance+and+compliance+at+Los+Alamos+during+1996&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98001873NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Science and sociology butt heads in tomography experiment in sacred mountains AN - 50311897; 1998-042301 AB - After a lengthy battle against opposition by specific interest groups, researchers with the Jemez Tomography Experiment (JTEX) investigated the crustal structure beneath a large, continental silicic magmatic system in the Jemez Mountains of New Mexico (Figure 1) in 1995. The seismic component involved both active and passive sources as well as a modest effort to interpret existing magnetotelluric data acquired during geothermal exploration of Valles caldera. While the data are still being processed and interpreted, early results indicate that magma is present in the middle crust and that an additional negative velocity anomaly exists at the base of the crust. Additionally, the southeastern part of the caldera is at least a kilometer deeper than the northwestern part. JF - Eos, Transactions, American Geophysical Union AU - Baldridge, W Scott AU - Braile, Lawrence W AU - Fehler, Michael C AU - Moreno, Frederico A Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 417 EP - 423 PB - American Geophysical Union, Washington, DC VL - 78 IS - 39 SN - 0096-3941, 0096-3941 KW - United States KW - tomography KW - Jemez volcanic field KW - upper mantle KW - geophysical surveys KW - public awareness KW - opposition KW - geophysical methods KW - mantle KW - JTEX Program KW - New Mexico KW - seismic methods KW - magnetotelluric methods KW - geometry KW - social issues KW - genesis KW - planning KW - magmas KW - Valles Caldera KW - surveys KW - Jemez Mountains KW - magma chambers KW - crust KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50311897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Science+and+sociology+butt+heads+in+tomography+experiment+in+sacred+mountains&rft.au=Baldridge%2C+W+Scott%3BBraile%2C+Lawrence+W%3BFehler%2C+Michael+C%3BMoreno%2C+Frederico+A&rft.aulast=Baldridge&rft.aufirst=W&rft.date=1997-09-01&rft.volume=78&rft.issue=39&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/10.1029%2F97EO00267 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 8 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - crust; genesis; geometry; geophysical methods; geophysical surveys; Jemez Mountains; Jemez volcanic field; JTEX Program; magma chambers; magmas; magnetotelluric methods; mantle; New Mexico; opposition; planning; public awareness; seismic methods; social issues; surveys; tomography; United States; upper mantle; Valles Caldera DO - http://dx.doi.org/10.1029/97EO00267 ER - TY - JOUR T1 - Nature of uranium contamination in the agricultural drainage water evaporation ponds of the San Joaquin Valley, California, USA AN - 52630284; 1998-010731 JF - Canadian Journal of Soil Science AU - Duff, Martine C AU - Amrhein, C AU - Bradford, G Y1 - 1997/08// PY - 1997 DA - August 1997 SP - 459 EP - 467 PB - Agricultural Institute of Canada, Ottawa, ON VL - 77 IS - 3 SN - 0008-4271, 0008-4271 KW - United States KW - Plantae KW - experimental studies KW - San Joaquin Valley KW - drainage KW - Central California KW - agriculture KW - adsorption KW - solubility KW - salinity KW - algae KW - California KW - ponds KW - evaporation KW - sampling KW - metals KW - alkalinity KW - uranium KW - actinides KW - Eh KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52630284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Soil+Science&rft.atitle=Nature+of+uranium+contamination+in+the+agricultural+drainage+water+evaporation+ponds+of+the+San+Joaquin+Valley%2C+California%2C+USA&rft.au=Duff%2C+Martine+C%3BAmrhein%2C+C%3BBradford%2C+G&rft.aulast=Duff&rft.aufirst=Martine&rft.date=1997-08-01&rft.volume=77&rft.issue=3&rft.spage=459&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Soil+Science&rft.issn=00084271&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 33 N1 - PubXState - ON N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CJSSAR N1 - SubjectsTermNotLitGenreText - actinides; adsorption; agriculture; algae; alkalinity; California; Central California; drainage; Eh; evaporation; experimental studies; metals; Plantae; ponds; salinity; sampling; San Joaquin Valley; solubility; United States; uranium ER - TY - JOUR T1 - An evaluation of generalized likelihood ratio outlier detection to identification of seismic events in western China AN - 52624741; 1998-009002 JF - Bulletin of the Seismological Society of America AU - Taylor, Steven R AU - Hartse, Hans E Y1 - 1997/08// PY - 1997 DA - August 1997 SP - 824 EP - 831 PB - Seismological Society of America, Berkeley, CA VL - 87 IS - 4 SN - 0037-1106, 0037-1106 KW - monitoring KW - Far East KW - detection KW - explosions KW - western China KW - Asia KW - earthquakes KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52624741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=An+evaluation+of+generalized+likelihood+ratio+outlier+detection+to+identification+of+seismic+events+in+western+China&rft.au=Taylor%2C+Steven+R%3BHartse%2C+Hans+E&rft.aulast=Taylor&rft.aufirst=Steven&rft.date=1997-08-01&rft.volume=87&rft.issue=4&rft.spage=824&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 7 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - Asia; China; detection; earthquakes; explosions; Far East; monitoring; western China ER - TY - JOUR T1 - Baseline geochemistry of soil and bedrock Tshirege Member of the Bandelier Tuff at MDA-P AN - 52415404; 2000-000032 AB - This report provides baseline geochemistry for soils (including fill), and for bedrock within three specific areas that are planned for use in the remediation of Material Disposal Area P (MDA-P) at Technical Area 16 (TA-16). The baseline chemistry includes leachable element concentrations for both soils and bedrock and total element concentrations for all soil samples and for two selected bedrock samples. MDA-P operated from the early 1950s to 1984 as a landfill for rubble and debris generated by the burning of high explosives (HE) at the TA-16 Burning Ground, HE-contaminated equipment and material, barium nitrate sand, building materials, and trash. The aim of this report is to establish causes for recognizable chemical differences between the background and baseline data sets. In many cases, the authors conclude that recognizable differences represent natural enrichments. In other cases, differences are best attributed to analytical problems. But most importantly, the comparison of background and baseline geochemistry demonstrates significant contamination for several elements not only at the two remedial sites near the TA-16 Burning Ground, but also within the entire region of the background study. This contamination is highly localized very near to the surface in soil and fill, and probably also in bedrock; consequently, upper tolerance limits (UTLs) calculated as upper 95% confidence limits of the 95th percentile are of little value and thus are not provided. This report instead provides basic statistical summaries and graphical comparisons for background and baseline samples to guide strategies for remediation of the three sites to be used in the restoration of MDA-P. JF - LA - Los Alamos Scientific Laboratory AU - Warren, R G AU - McDonald, E V AU - Ryti, R T Y1 - 1997/08// PY - 1997 DA - August 1997 SP - 75 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - backfill KW - site exploration KW - chemical explosions KW - landfills KW - New Mexico KW - reservoir rocks KW - remediation KW - Cenozoic KW - Tshirege Member KW - Bandelier Tuff KW - chemical composition KW - geochemistry KW - sanitary landfills KW - baseline studies KW - soils KW - bedrock KW - concentration KW - Quaternary KW - explosions KW - pollutants KW - background level KW - pollution KW - Pleistocene KW - waste disposal KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52415404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Warren%2C+R+G%3BMcDonald%2C+E+V%3BRyti%2C+R+T&rft.aulast=Warren&rft.aufirst=R&rft.date=1997-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Baseline+geochemistry+of+soil+and+bedrock+Tshirege+Member+of+the+Bandelier+Tuff+at+MDA-P&rft.title=Baseline+geochemistry+of+soil+and+bedrock+Tshirege+Member+of+the+Bandelier+Tuff+at+MDA-P&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98001880NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - backfill; background level; Bandelier Tuff; baseline studies; bedrock; Cenozoic; chemical composition; chemical explosions; concentration; explosions; geochemistry; landfills; New Mexico; Pleistocene; pollutants; pollution; Quaternary; remediation; reservoir rocks; sanitary landfills; site exploration; soils; Tshirege Member; United States; waste disposal ER - TY - JOUR T1 - The isotopic and chemical composition of CO (sub 2) -rich thermal waters in the Mont-Dore region (Massif-Central, France) AN - 52686167; 1997-062995 AB - Samples collected between 1974 and 1986 were examined. The fluids emerge from Quaternary volcanics or Palaeozoic granite at 4-62 degrees C; they are of meteoric origin and can be classified as bicarbonate, mixed bicarbonate-chloride and acid-sulphate; only two contain enough Cl (super -) to be considered 'mature'. It was previously shown that all contain partly mantle-derived CO (sub 2) gas, and that the gas phase and bicarbonate-chloride waters are separated at depth. Mineralized fluids circulate at depth and undergo several processes during their ascent so the CO (sub 2) -rich gas phase can be partly dissolved in freshwater, or in deep fluids after dilution. This leads to dissolution of surrounding rocks, a process which is discussed. Dissolution of S-bearing minerals has also been demonstrated. The presence of the CO (sub 2) -rich gas phase also leads to isotope exchange between CO (sub 2) and H (sub 2) O. Some mineralized fluids are less affected by these processes than others, in which case they display the chemical and isotopic characteristics of the original deep fluids. Although the applicability of geothermometry to these waters is limited, some geothermometers can be used to estimate the T of the deep fluids from the chemical composition of the less modified fluids. It seems that fluids emerging from volcanics in the Dordogne valley are approximately 100-130 degrees C at depth, while those issuing from the granite at Saint-Nectaire are 160-175 degrees C at depth. JF - Applied Geochemistry AU - Pauwels, H AU - Fouillac, C AU - Goff, F AU - Vuataz, F D Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 411 EP - 427 PB - Pergamon, Oxford-New York-Beijing VL - 12 IS - 4 SN - 0883-2927, 0883-2927 KW - calcium KW - geologic thermometry KW - Chaudefour Valley KW - halogens KW - fresh water KW - Europe KW - tritium KW - temperature KW - carbon dioxide KW - France KW - chloride ion KW - mixing KW - cooling KW - springs KW - discharge KW - pH KW - sulfate ion KW - minor elements KW - lithium KW - S-34 KW - bicarbonate ion KW - Mont-Dore France KW - Sr-87/Sr-86 KW - S-34/S-32 KW - dissolved materials KW - potassium KW - O-18 KW - boron KW - Central Massif KW - water wells KW - strontium KW - wells KW - magnesium KW - oxygen KW - isotopes KW - silicon dioxide KW - solution KW - stable isotopes KW - radioactive isotopes KW - major elements KW - sampling KW - mineralization KW - Puy-de-Dome France KW - deuterium KW - chemical composition KW - geochemistry KW - water KW - chlorine KW - meteoric water KW - alkaline earth metals KW - Western Europe KW - isotope ratios KW - alkali metals KW - O-18/O-16 KW - Dordogne Valley KW - sodium KW - bromine KW - hydrochemistry KW - thermal waters KW - D/H KW - metals KW - hydrogen KW - sulfur KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52686167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=The+isotopic+and+chemical+composition+of+CO+%28sub+2%29+-rich+thermal+waters+in+the+Mont-Dore+region+%28Massif-Central%2C+France%29&rft.au=Pauwels%2C+H%3BFouillac%2C+C%3BGoff%2C+F%3BVuataz%2C+F+D&rft.aulast=Pauwels&rft.aufirst=H&rft.date=1997-07-01&rft.volume=12&rft.issue=4&rft.spage=411&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2FS0883-2927%2897%2900010-3 L2 - http://www.sciencedirect.com/science/journal/08832927 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 60 N1 - Document feature - illus. incl. 7 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; bicarbonate ion; boron; bromine; calcium; carbon dioxide; Central Massif; Chaudefour Valley; chemical composition; chloride ion; chlorine; cooling; D/H; deuterium; discharge; dissolved materials; Dordogne Valley; Europe; France; fresh water; geochemistry; geologic thermometry; halogens; hydrochemistry; hydrogen; isotope ratios; isotopes; lithium; magnesium; major elements; metals; meteoric water; mineralization; minor elements; mixing; Mont-Dore France; O-18; O-18/O-16; oxygen; pH; potassium; Puy-de-Dome France; radioactive isotopes; S-34; S-34/S-32; sampling; silicon dioxide; sodium; solution; springs; Sr-87/Sr-86; stable isotopes; strontium; sulfate ion; sulfur; temperature; thermal waters; tritium; water; water wells; wells; Western Europe DO - http://dx.doi.org/10.1016/S0883-2927(97)00010-3 ER - TY - JOUR T1 - Experimental and theoretical identification of a new high-pressure phase of silica AN - 52673690; 1997-064592 AB - The results of an XRD study of SiO (sub 2) heated to >>2000 K and maintained at 68-85 GPa, are presented. XRD reflections, observed and calculated d spacings are listed. A new high-P phase is identified using first-principles total-energy calculations. The structure (space group Pnc 2) is intermediate between alpha -PbO (sub 2) and ZrO (sub 2) structures. Diffraction spacings d of 2.9905, 2.4615 and 1.4181 Aa at 85 GPa (using Fe and silica gel starting materials), and of 3.0130, 2.4719, 2.0685, 1.8296 and 1.4220 Aa at 68 GPa (using Pt and quartz) are attributed to the new SiO (sub 2) phase. On release of P the Pnc 2 phase reverts to stishovite or CaCl (sub 2) -type SiO (sub 2) . JF - Nature (London) AU - Dubrovinsky, L S AU - Saxena, S K AU - Lazor, P AU - Ahuja, R AU - Eriksson, O AU - Wills, J M AU - Johansson, B Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 362 EP - 365 PB - Macmillan Journals, London VL - 388 IS - 6640 SN - 0028-0836, 0028-0836 KW - theoretical studies KW - experimental studies KW - pressure KW - X-ray diffraction data KW - space groups KW - silica KW - crystal structure KW - high pressure KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52673690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Experimental+and+theoretical+identification+of+a+new+high-pressure+phase+of+silica&rft.au=Dubrovinsky%2C+L+S%3BSaxena%2C+S+K%3BLazor%2C+P%3BAhuja%2C+R%3BEriksson%2C+O%3BWills%2C+J+M%3BJohansson%2C+B&rft.aulast=Dubrovinsky&rft.aufirst=L&rft.date=1997-07-01&rft.volume=388&rft.issue=6640&rft.spage=362&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F41066 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - crystal structure; experimental studies; high pressure; pressure; silica; space groups; theoretical studies; X-ray diffraction data DO - http://dx.doi.org/10.1038/41066 ER - TY - JOUR T1 - Clorine-36 in fossil rat urine; an archive of cosmogenic nuclide deposition during the past 40,000 years AN - 52672833; 1997-064584 JF - Science AU - Plummer, Mitchell A AU - Phillips, Fred M AU - Fabryka-Martin, June T AU - Turin, H J AU - Wigand, Peter E AU - Sharma, Pankaj Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 538 EP - 541 PB - American Association for the Advancement of Science, Washington, DC VL - 277 IS - 5325 SN - 0036-8075, 0036-8075 KW - United States KW - isotopes KW - halogens KW - cosmogenic elements KW - upper Pleistocene KW - Cenozoic KW - Theria KW - radioactive isotopes KW - Myomorpha KW - Eutheria KW - Nevada KW - chlorine KW - middens KW - Chordata KW - Quaternary KW - isotope ratios KW - Cl-36 KW - Mammalia KW - Cricetidae KW - Neotoma KW - Pleistocene KW - Vertebrata KW - Rodentia KW - Tetrapoda KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52672833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Clorine-36+in+fossil+rat+urine%3B+an+archive+of+cosmogenic+nuclide+deposition+during+the+past+40%2C000+years&rft.au=Plummer%2C+Mitchell+A%3BPhillips%2C+Fred+M%3BFabryka-Martin%2C+June+T%3BTurin%2C+H+J%3BWigand%2C+Peter+E%3BSharma%2C+Pankaj&rft.aulast=Plummer&rft.aufirst=Mitchell&rft.date=1997-07-01&rft.volume=277&rft.issue=5325&rft.spage=538&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Cenozoic; chlorine; Chordata; Cl-36; cosmogenic elements; Cricetidae; Eutheria; halogens; isotope ratios; isotopes; Mammalia; middens; Myomorpha; Neotoma; Nevada; Pleistocene; Quaternary; radioactive isotopes; Rodentia; Tetrapoda; Theria; United States; upper Pleistocene; Vertebrata ER - TY - JOUR T1 - The largest mass of nickel-iron meteorites AN - 52600121; 1998-036466 JF - Meteoritics & Planetary Science AU - Hills, J G AU - Goda, M P A2 - Sears, Derek W. G. Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 60 PB - Meteoritical Society, Fayetteville, AR VL - 32, Suppl. SN - 1086-9379, 1086-9379 KW - fragmentation KW - density KW - data processing KW - impacts KW - iron KW - size KW - meteors KW - mass KW - meteorites KW - iron meteorites KW - metals KW - digital simulation KW - nickel KW - velocity KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52600121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+largest+mass+of+nickel-iron+meteorites&rft.au=Hills%2C+J+G%3BGoda%2C+M+P&rft.aulast=Hills&rft.aufirst=J&rft.date=1997-07-01&rft.volume=32%2C+Suppl.&rft.issue=&rft.spage=60&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 60th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 1 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - data processing; density; digital simulation; fragmentation; impacts; iron; iron meteorites; mass; metals; meteorites; meteors; nickel; size; velocity ER - TY - JOUR T1 - Evaluation of (super 32) Si as a tracer for measuring silica production rates in marine waters AN - 52545659; 1998-074019 JF - Limnology and Oceanography AU - Brzezinski, Mark A AU - Phillips, Dennis R Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 856 EP - 865 PB - American Society of Limnology and Oceanography, Ann Arbor, MI VL - 42 IS - 5 SN - 0024-3590, 0024-3590 KW - sea water KW - isotopes KW - marine geology KW - S-32 KW - phosphorus KW - silicic acid KW - production KW - hydrochemistry KW - stable isotopes KW - measurement KW - phosphate ion KW - radioactive isotopes KW - radioactive tracers KW - marine environment KW - sulfur KW - P-32 KW - geochemistry KW - 02D:Isotope geochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52545659?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Limnology+and+Oceanography&rft.atitle=Evaluation+of+%28super+32%29+Si+as+a+tracer+for+measuring+silica+production+rates+in+marine+waters&rft.au=Brzezinski%2C+Mark+A%3BPhillips%2C+Dennis+R&rft.aulast=Brzezinski&rft.aufirst=Mark&rft.date=1997-07-01&rft.volume=42&rft.issue=5&rft.spage=856&rft.isbn=&rft.btitle=&rft.title=Limnology+and+Oceanography&rft.issn=00243590&rft_id=info:doi/ L2 - http://aslo.org/lo/toc/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 23 N1 - PubXState - MI N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - LIOCAH N1 - SubjectsTermNotLitGenreText - geochemistry; hydrochemistry; isotopes; marine environment; marine geology; measurement; P-32; phosphate ion; phosphorus; production; radioactive isotopes; radioactive tracers; S-32; sea water; silicic acid; stable isotopes; sulfur ER - TY - JOUR T1 - Summary of the models and methods for the FEHM application; a finite-element heat- and mass-transfer code AN - 52539013; 1999-002186 AB - The mathematical models and numerical methods employed by the FEHM application, a finite-element heat- and mass-transfer computer code that can simulate nonisothermal multiphase multi-component flow in porous media, are described. The use of this code is applicable to natural-state studies of geothermal systems and groundwater flow. A primary use of the FEHM application will be to assist in the understanding of flow fields and mass transport in the saturated and unsaturated zones below the proposed Yucca Mountain nuclear waste repository in Nevada. The component models of FEHM are discussed. The first major component, Flow- and Energy-Transport Equations, deals with heat conduction; heat and mass transfer with pressure- and temperature-dependent properties, relative permeabilities and capillary pressures; isothermal air-water transport; and heat and mass transfer with noncondensible gas. The second component, Dual-Porosity and Double-Porosity/Double-Permeability Formulation, is designed for problems dominated by fracture flow. Another component, The Solute-Transport Models, includes both a reactive-transport model that simulates transport of multiple solutes with chemical reaction and a particle-tracking model. Finally, the component, Constitutive Relationships, deals with pressure- and temperature-dependent fluid/air/gas properties, relative permeabilities and capillary pressures, stress dependencies, and reactive and sorbing solutes. Each of these components is discussed in detail, including purpose, assumptions and limitations, derivation, applications, numerical method type, derivation of numerical model, location in the FEHM code flow, numerical stability and accuracy, and alternative approaches to modeling the component. JF - LA - Los Alamos Scientific Laboratory AU - Zyvoloski, G A AU - Robinson, B A AU - Dash, Z V AU - Trease, L L Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 68 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - site exploration KW - statistical analysis KW - mathematical models KW - preferential flow KW - Nye County Nevada KW - porosity KW - ground water KW - finite element analysis KW - mathematical methods KW - underground installations KW - multiphase flow KW - heat transfer KW - applications KW - mass transfer KW - Yucca Mountain KW - accuracy KW - underground disposal KW - permeability KW - Nevada KW - 30:Engineering geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52539013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Zyvoloski%2C+G+A%3BRobinson%2C+B+A%3BDash%2C+Z+V%3BTrease%2C+L+L&rft.aulast=Zyvoloski&rft.aufirst=G&rft.date=1997-07-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Summary+of+the+models+and+methods+for+the+FEHM+application%3B+a+finite-element+heat-+and+mass-transfer+code&rft.title=Summary+of+the+models+and+methods+for+the+FEHM+application%3B+a+finite-element+heat-+and+mass-transfer+code&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1999-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98001781NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - accuracy; applications; finite element analysis; ground water; heat transfer; mass transfer; mathematical methods; mathematical models; multiphase flow; Nevada; Nye County Nevada; permeability; porosity; preferential flow; site exploration; statistical analysis; underground disposal; underground installations; United States; Yucca Mountain ER - TY - JOUR T1 - Radionuclide concentrations in soils and vegetation at radioactive-waste disposal Area G during the 1996 growing season; Progress report AN - 52420005; 2000-000202 AB - Soil and overstory and understory vegetation (washed and unwashed) collected at eight locations within and around Area G--a low-level radioactive solid-waste disposal facility at Los Alamos National laboratory--were analyzed for (super 3) H, (super 90) Sr, (super 238) Pu, (super 239) Pu, (super 137) Cs, (super 234) U, (super 235) U, (super 238) U, (super tot) U, (super 228) Ac, (super 214) Bi, (super 60) Co, (super 40) K, (super 54) Mn, (super 22) Na, (super 214) Pb, and (super 208) Tl. Also, heavy metals (Ag, As, Ba, Be, Cd, Cr, Hg, Ni, Pb, Sb, Se, and Tl) in soil and vegetation were determined. In general, most radionuclide concentrations, with the exception of (super 3) H and (super 239) Pu, in soils and washed and unwashed overstory and understory vegetation collected from within and around Area G were within upper limit background concentrations. Tritium was detected as high as 14,744 pCi mL (super -1) in understory vegetation collected from transuranic (TRU) waste pad #4, and the TRU waste pad area contained the highest levels of (super 239) Pu in soils and in understory vegetation as compared to other areas at Area G. JF - LA - Los Alamos Scientific Laboratory AU - Fresquez, P R AU - Vold, E L AU - Naranjo, L Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 110 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - soils KW - Plantae KW - pollutants KW - pollution KW - New Mexico KW - Los Alamos County New Mexico KW - vegetation KW - Los Alamos National Laboratory KW - radioactive waste KW - bioaccumulation KW - waste management KW - progress report KW - metals KW - report KW - nuclear facilities KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52420005?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Fresquez%2C+P+R%3BVold%2C+E+L%3BNaranjo%2C+L&rft.aulast=Fresquez&rft.aufirst=P&rft.date=1997-07-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Radionuclide+concentrations+in+soils+and+vegetation+at+radioactive-waste+disposal+Area+G+during+the+1996+growing+season%3B+Progress+report&rft.title=Radionuclide+concentrations+in+soils+and+vegetation+at+radioactive-waste+disposal+Area+G+during+the+1996+growing+season%3B+Progress+report&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97008002NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - bioaccumulation; Los Alamos County New Mexico; Los Alamos National Laboratory; metals; New Mexico; nuclear facilities; Plantae; pollutants; pollution; progress report; radioactive waste; report; soils; United States; vegetation; waste disposal; waste management ER - TY - JOUR T1 - Mechanism of plutonium transport in a shallow aquifer in Mortandad Canyon, Los Alamos National Laboratory, New Mexico AN - 52367829; 2000-027303 JF - Environmental Science & Technology, ES & T AU - Marty, Richard C AU - Bennett, Deborah AU - Thullen, Philip Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 2020 EP - 2027 PB - American Chemical Society, Washington, DC VL - 31 IS - 7 SN - 0013-936X, 0013-936X KW - United States KW - aquifer vulnerability KW - isotopes KW - plutonium KW - Pu-239 KW - Mortandad Canyon KW - New Mexico KW - Los Alamos County New Mexico KW - ground water KW - radioactive isotopes KW - transport KW - chemical composition KW - concentration KW - pollution KW - migration of elements KW - Los Alamos National Laboratory KW - aquifers KW - detection KW - alluvium aquifers KW - metals KW - shallow aquifers KW - nuclear facilities KW - water wells KW - actinides KW - point sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52367829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Mechanism+of+plutonium+transport+in+a+shallow+aquifer+in+Mortandad+Canyon%2C+Los+Alamos+National+Laboratory%2C+New+Mexico&rft.au=Marty%2C+Richard+C%3BBennett%2C+Deborah%3BThullen%2C+Philip&rft.aulast=Marty&rft.aufirst=Richard&rft.date=1997-07-01&rft.volume=31&rft.issue=7&rft.spage=2020&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; alluvium aquifers; aquifer vulnerability; aquifers; chemical composition; concentration; detection; ground water; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; metals; migration of elements; Mortandad Canyon; New Mexico; nuclear facilities; plutonium; point sources; pollution; Pu-239; radioactive isotopes; shallow aquifers; transport; United States; water wells ER - TY - JOUR T1 - Interaction of mantle plumes and migrating mid-ocean ridges; implications for the Galapagos plume-ridge system AN - 51050112; 1997-068913 JF - Journal of Geophysical Research AU - Ito, Garrett AU - Lin, Jian AU - Gable, Carl W Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 15 EP - 15,417 PB - American Geophysical Union, Washington, DC VL - 102 IS - B7 SN - 0148-0227, 0148-0227 KW - East Pacific KW - migration KW - numerical models KW - three-dimensional models KW - Galapagos Rift KW - mantle KW - plate tectonics KW - thermal diffusivity KW - viscosity KW - rheology KW - Pacific Ocean KW - ocean floors KW - mantle plumes KW - mid-ocean ridges KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51050112?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Interaction+of+mantle+plumes+and+migrating+mid-ocean+ridges%3B+implications+for+the+Galapagos+plume-ridge+system&rft.au=Ito%2C+Garrett%3BLin%2C+Jian%3BGable%2C+Carl+W&rft.aulast=Ito&rft.aufirst=Garrett&rft.date=1997-07-01&rft.volume=102&rft.issue=B7&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F97JB01049 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 47 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - East Pacific; Galapagos Rift; mantle; mantle plumes; mid-ocean ridges; migration; numerical models; ocean floors; Pacific Ocean; plate tectonics; rheology; thermal diffusivity; three-dimensional models; viscosity DO - http://dx.doi.org/10.1029/97JB01049 ER - TY - JOUR T1 - Increase of electrical conductivity with pressure as an indicator of conduction through a solid phase in midcrustal rocks AN - 50171534; 1997-068872 AB - Rocks freshly cored from depth at the German continental scientific drilling site (KTB) offer an opportunity to study transport properties in relatively unaltered samples resembling material in situ. Electrical conductivity sigma was measured to 250 MPa pressure, and room temperature on 1 M NaCl-saturated amphibolites from 4 to 5 km depth. An unexpected feature was an increase of sigma with pressure P that appeared (anisotropically) in most samples. To characterize this behavior, we fitted the linear portion of log sigma versus P to obtain two parameters: the slope dlogsigma /dP (of order 10 (super -3) MPa (super -1) ) and the zero-pressure intercept sigma (sub 0) . Samples of positive and negative slopes behave differently. Those having negative slopes show strong correlation of sigma (sub 0) with a fluid property (permeability). This behavior indicates that fluids exert the dominant control on sigma (sub 0) at low pressure when sigma (sub 0) is greatest, which is typical behavior observed in previous studies. In contrast, samples with positive slopes lack a correlation of sigma (sub 0) with permeability, indicating that fluids are less important to positive pressure behavior. Another result is that samples of negative dlogsigma /dP have uncorrelated slopes and initial conductivities. In significant contrast, samples of positive slopes have the greatest P dependence for lowest initial conductivity sigma (sub 0) , that is, the less fluid, the more positive dlogsigma /dP. Hence positive dlogsigma /dP is consistent with reconnection of solid phases into a conductive texture better resembling that of rock at depth. Detailed examination of one sample by electron probe and scanning electron microscope reveals the presence of carbon on internal cleavage surfaces in amphibole, the most abundant mineral present. Thus carbon probably dominates the reconnection, but total sigma still involves fluids as well as Fe-Ti oxides. For the KTB location it is inferred that the reason mid to deep crustal electrical conductivities modeled from geophysical measurements are so much higher than conductivities of silicates is the presence of interconnected good conductors involving films of carbon on surfaces and other solid phases. Copyright 1997 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Shankland, T J AU - Duba, A G AU - Mathez, E A AU - Peach, C L Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 14 EP - 14,750 PB - American Geophysical Union, Washington, DC VL - 102 IS - B7 SN - 0148-0227, 0148-0227 KW - experimental studies KW - electrical conductivity KW - pressure KW - Bavaria Germany KW - Europe KW - cores KW - electron probe data KW - solid phase KW - physical properties KW - KTB KW - middle crust KW - Central Europe KW - petrography KW - Germany KW - fabric KW - permeability KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50171534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Increase+of+electrical+conductivity+with+pressure+as+an+indicator+of+conduction+through+a+solid+phase+in+midcrustal+rocks&rft.au=Shankland%2C+T+J%3BDuba%2C+A+G%3BMathez%2C+E+A%3BPeach%2C+C+L&rft.aulast=Shankland&rft.aufirst=T&rft.date=1997-07-01&rft.volume=102&rft.issue=B7&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F96JB03389 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 64 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Bavaria Germany; Central Europe; cores; crust; electrical conductivity; electron probe data; Europe; experimental studies; fabric; Germany; KTB; middle crust; permeability; petrography; physical properties; pressure; solid phase DO - http://dx.doi.org/10.1029/96JB03389 ER - TY - JOUR T1 - Volcanic gas emissions from Mount Erebus and their impact on the Antarctic environment AN - 50170703; 1997-068889 AB - Emission rates of SO (sub 2) , HCl, and HF from the active volcano Mount Erebus, Antarctica, increased between 1986 and 1991; SO (sub 2) from 7.7 to 25.9 Gg yr (super -1) , HCl from 6.9 to 13.3 Gg yr (super -1) and HF from 4.0 to 6.0 Gg yr (super -1) . The emission rates of halogens from Mount Erebus are high relative to SO (sub 2) emissions and are accompanied by relatively high emissions of trace gases and aerosols (Na, K, As, Zn, In, As, Se, and Au). Many elements (S, Cl, and metals) found in the Erebus plume are common impurities in Antarctic snow. Using a model which assumes a homogeneous distribution of the volcanic gas plume over Antarctica, we suggest that Erebus could be a source of the impurities. We calculate that Erebus could potentially contribute between 4 and 14 ng g (super -1) snow of Cl at the south pole, and between 11 and 36 ng g (super -1) snow of Cl at Dome C. Excess Cl (Cl in excess of that derived from marine NaCl aerosols) recorded in snow and firn cores from south pole and Dome C could be mainly derived from Erebus. Similarly, our predicted concentrations of Erebus-derived Cu, Zn, Cd, V, As, and Au in Antarctic snow are close to those reported. Trace element and Pb isotope compositions of Erebus aerosols are similar to those collected in remote regions of Antarctica. The volcanic gas plume emitted from Erebus appears to make a significant contribution to the Antarctic atmosphere and can be detected in the snow deposited over a wide area of the continent. Copyright 1997 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Zreda-Gostynska, Grazyna AU - Kyle, Philip R AU - Finnegan, D AU - Prestbo, Kimberly Meeker Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 15 EP - 15,055 PB - American Geophysical Union, Washington, DC VL - 102 IS - B7 SN - 0148-0227, 0148-0227 KW - sulfur dioxide KW - concentration KW - plumes KW - halogens KW - atmosphere KW - effects KW - atmospheric precipitation KW - Ross Island KW - gases KW - Antarctica KW - snow KW - hydrochloric acid KW - volcanoes KW - aerosols KW - hydrofluoric acid KW - inorganic acids KW - Mount Erebus KW - 24:Quaternary geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50170703?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Volcanic+gas+emissions+from+Mount+Erebus+and+their+impact+on+the+Antarctic+environment&rft.au=Zreda-Gostynska%2C+Grazyna%3BKyle%2C+Philip+R%3BFinnegan%2C+D%3BPrestbo%2C+Kimberly+Meeker&rft.aulast=Zreda-Gostynska&rft.aufirst=Grazyna&rft.date=1997-07-01&rft.volume=102&rft.issue=B7&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F97JB00155 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 68 N1 - PubXState - DC N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aerosols; Antarctica; atmosphere; atmospheric precipitation; concentration; effects; gases; halogens; hydrochloric acid; hydrofluoric acid; inorganic acids; Mount Erebus; plumes; Ross Island; snow; sulfur dioxide; volcanoes DO - http://dx.doi.org/10.1029/97JB00155 ER - TY - JOUR T1 - Preservation of biomolecules in cancellous bone of Tyrannosaurus rex AN - 51321900; 1997-062933 AB - An exceptionally well preserved specimen of the tyrannosaurid dinosaur Tyrannosaurus rex Osborn shows little evidence of permineralization or other diagenetic effects. It appears that the cancellous bone tissues of the specimen may have been protected from water infiltration or mineral deposition by the very dense cortical bone which surrounds them. The cancellous tissues provided an opportunity to test the hypothesis that indigenous biomolecules might be preserved over the course of millions of years under the appropriate conditions. HPLC analysis of extracts from the bone tissues revealed the presence of molecules with light absorbance maxima consistent with nucleic acids and peptides/proteins. Analyses of bone extracts for amino acid content yielded ratios similar to those found for modern ostrich and horse bone. A high molar glycine ratio and the presence of hydroxylysine peaks in bony tissue samples from the T. rex suggests the presence of collagen type I remnants. Results indicate that the analyzed tissue contains numerous biomolecules. While some of the biomolecules are most likely contaminants, the probable presence of collagen type I suggests that some molecules of dinosaurian origin remain in these tissues. JF - Journal of Vertebrate Paleontology AU - Schweitzer, Mary Higby AU - Johnson, Craig AU - Zocco, Thomas G AU - Horner, John R AU - Starkey, Jean R Y1 - 1997/06/19/ PY - 1997 DA - 1997 Jun 19 SP - 349 EP - 359 PB - University of Oklahoma, Norman, OK VL - 17 IS - 2 SN - 0272-4634, 0272-4634 KW - United States KW - Diapsida KW - extinct taxa KW - Cretaceous KW - microstructure KW - data processing KW - Tyrannosauridae KW - fossilization KW - Upper Cretaceous KW - Archosauria KW - theoretical studies KW - Theropoda KW - Tyrannosaurus KW - bones KW - amino acids KW - Tyrannosaurus rex KW - electron diffraction analysis data KW - dinosaurs KW - McCone County Montana KW - organic materials KW - chromatography KW - Hell Creek Formation KW - Chordata KW - Carnosauria KW - modern analogs KW - living taxa KW - numerical analysis KW - graphic display KW - Coelurosauria KW - TEM data KW - Mesozoic KW - Montana KW - Reptilia KW - Aves KW - organic compounds KW - organic acids KW - Crocodilia KW - nucleic acids KW - collagen KW - Saurischia KW - peptides KW - molecules KW - Vertebrata KW - proteins KW - Tetrapoda KW - preservation KW - 11:Vertebrate paleontology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51321900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Vertebrate+Paleontology&rft.atitle=Preservation+of+biomolecules+in+cancellous+bone+of+Tyrannosaurus+rex&rft.au=Schweitzer%2C+Mary+Higby%3BJohnson%2C+Craig%3BZocco%2C+Thomas+G%3BHorner%2C+John+R%3BStarkey%2C+Jean+R&rft.aulast=Schweitzer&rft.aufirst=Mary&rft.date=1997-06-19&rft.volume=17&rft.issue=2&rft.spage=349&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vertebrate+Paleontology&rft.issn=02724634&rft_id=info:doi/ L2 - http://www.bioone.org/loi/vrpa LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 30 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - amino acids; Archosauria; Aves; bones; Carnosauria; Chordata; chromatography; Coelurosauria; collagen; Cretaceous; Crocodilia; data processing; Diapsida; dinosaurs; electron diffraction analysis data; extinct taxa; fossilization; graphic display; Hell Creek Formation; living taxa; McCone County Montana; Mesozoic; microstructure; modern analogs; molecules; Montana; nucleic acids; numerical analysis; organic acids; organic compounds; organic materials; peptides; preservation; proteins; Reptilia; Saurischia; TEM data; Tetrapoda; theoretical studies; Theropoda; Tyrannosauridae; Tyrannosaurus; Tyrannosaurus rex; United States; Upper Cretaceous; Vertebrata ER - TY - JOUR T1 - Extracellular factor(s) following exposure to alpha particles can cause sister chromatid exchanges in normal human cells. AN - 79056621; 9187116 AB - The mechanism(s) by which alpha particles like those emitted from inhaled radon and radon progeny cause their mutagenic and carcinogenic effects remains unclear. Although direct nuclear traversals by alpha particles may be involved in mediating these outcomes, increasing evidence indicates that alpha particles can cause alterations in DNA in the absence of direct "hits" to cell nuclei. Using the occurrence of excessive sister chromatid exchanges (SCEs) as an index of DNA damage in human lung fibroblasts, we investigated the hypothesis that alpha particles may induce DNA damage via the generation of extracellular factors. We have found that a relatively low dose of alpha particles indeed results in the generation of extracellular factors, which, upon transfer to unexposed normal human cells, can cause excessive SCEs to an extent equivalent to that observed when the cells are directly irradiated with the same irradiation dose. A short-lived, SCE-inducing factor(s) was generated in alpha-irradiated culture medium containing serum in the absence of cells; it was found that the activity of this factor can be promptly inhibited by superoxide dismutase. A more persistent SCE-inducing factor(s), which can survive freeze-thawing, is heat labile and also can be inhibited by superoxide dismutase, was produced by fibroblasts after exposure to alpha particles. These results indicate that the initiating target for alpha-particle-induced genetic changes can be larger than the nuclear compartment alone and even larger than the cytoplasmic compartment. How transmissible factors like those observed here in vitro may extend to the in vivo condition in the context of alpha-particle-induced carcinogenesis in the respiratory tract and elsewhere remains to be determined. JF - Cancer research AU - Lehnert, B E AU - Goodwin, E H AU - Deshpande, A AD - Cell and Molecular Biology Group, Life Sciences Division, Los Alamos National Laboratory, New Mexico 87545, USA. lehnert@telomere.lanl.gov Y1 - 1997/06/01/ PY - 1997 DA - 1997 Jun 01 SP - 2164 EP - 2171 VL - 57 IS - 11 SN - 0008-5472, 0008-5472 KW - Culture Media KW - 0 KW - DNA KW - 9007-49-2 KW - Superoxide Dismutase KW - EC 1.15.1.1 KW - Index Medicus KW - Superoxide Dismutase -- pharmacology KW - Cells, Cultured KW - Humans KW - DNA -- metabolism KW - Dose-Response Relationship, Radiation KW - DNA Damage -- radiation effects KW - Fibroblasts KW - Culture Media -- radiation effects KW - Alpha Particles -- adverse effects KW - Sister Chromatid Exchange -- radiation effects KW - Culture Media -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79056621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cancer+research&rft.atitle=Extracellular+factor%28s%29+following+exposure+to+alpha+particles+can+cause+sister+chromatid+exchanges+in+normal+human+cells.&rft.au=Lehnert%2C+B+E%3BGoodwin%2C+E+H%3BDeshpande%2C+A&rft.aulast=Lehnert&rft.aufirst=B&rft.date=1997-06-01&rft.volume=57&rft.issue=11&rft.spage=2164&rft.isbn=&rft.btitle=&rft.title=Cancer+research&rft.issn=00085472&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-07-10 N1 - Date created - 1997-07-10 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Erratum In: Cancer Res. 2003 Mar 15;63(6):1439 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A preliminary study of regional seismic discrimination in Central Asia with emphasis on western China AN - 52689125; 1997-059832 AB - In support of a Comprehensive Test Ban Treaty, we have started to evaluate regional seismic-event discrimination capabilities for central Asia, emphasizing western China. We have measured noise and signal levels of over 260 earthquakes and 26 underground nuclear explosions recorded at the broadband, digital station WMQ in western China and over 120 earthquakes and five nuclear explosions at station AAK in Kyrgyzstan. The explosions are from the Kazakh Test Site (KTS) and Lop Nor, China. The earthquakes are mostly from northwest China. Event magnitudes (measured as either m (sub b) or M (sub L) ) range between 2.5 and 6.5 and maximum event-station distance is about 1700 km. We formed phase, spectral, cross-spectral, short-period/long-period, and long-period ratios to test many possible event discriminants. All ratios were corrected for distance effects before forming ratio-versus-magnitude discrimination plots. The most consistent discriminants for separating earthquakes from explosions are P/S phase ratios for frequencies above 3 to 4 Hz. P-wave (f>1 Hz) to Rayleigh-wave (0.03 Hz4 Hz)P/S discrimination plots. For station WMQ. long-period R/L (Rayleigh-wave/Love-wave) ratios separate KTS explosions and Asian earthquakes. However, R/L ratios fail to identify the large Lop Nor explosions recorded at station AAK because the Love waves are as large as the Rayleigh waves, suggesting that strong tectonic release occurs with these explosions. Because we have examined only one path at a single station for these explosions, source-radiation pattern may be influencing this observation. JF - Bulletin of the Seismological Society of America AU - Hartse, Hans E AU - Taylor, Steven R AU - Phillips, W Scott AU - Randall, George E Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 551 EP - 568 PB - Seismological Society of America, Berkeley, CA VL - 87 IS - 3 SN - 0037-1106, 0037-1106 KW - P-waves KW - body waves KW - Far East KW - explosions KW - magnitude KW - elastic waves KW - seismic sources KW - tectonics KW - seismic waves KW - western China KW - nuclear explosions KW - interpretation KW - Asia KW - earthquakes KW - China KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52689125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=A+preliminary+study+of+regional+seismic+discrimination+in+Central+Asia+with+emphasis+on+western+China&rft.au=Hartse%2C+Hans+E%3BTaylor%2C+Steven+R%3BPhillips%2C+W+Scott%3BRandall%2C+George+E&rft.aulast=Hartse&rft.aufirst=Hans&rft.date=1997-06-01&rft.volume=87&rft.issue=3&rft.spage=551&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 43 N1 - PubXState - CA N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - Asia; body waves; China; Comprehensive Test Ban Treaty; earthquakes; elastic waves; explosions; Far East; interpretation; magnitude; nuclear explosions; P-waves; seismic sources; seismic waves; tectonics; western China ER - TY - JOUR T1 - Conditional stochastic analysis for multiphase transport in randomly heterogeneous, variably saturated media AN - 52669188; 1997-076872 JF - Transport in Porous Media AU - Zhang, Dongxiao Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 265 EP - 287 PB - D. Reidel Publishing Company, Dordrecht VL - 27 IS - 3 SN - 0169-3913, 0169-3913 KW - saturated materials KW - pollution KW - porous materials KW - equations KW - porosity KW - ground water KW - spatial variations KW - heterogeneous materials KW - transport KW - stochastic processes KW - multiphase flow KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52669188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Conditional+stochastic+analysis+for+multiphase+transport+in+randomly+heterogeneous%2C+variably+saturated+media&rft.au=Zhang%2C+Dongxiao&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1997-06-01&rft.volume=27&rft.issue=3&rft.spage=265&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/ L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 57 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - equations; ground water; heterogeneous materials; multiphase flow; permeability; pollution; porosity; porous materials; saturated materials; spatial variations; stochastic processes; transport ER - TY - JOUR T1 - Can hydraulic fracture-induced microearthquakes show where the fluid went? AN - 52622618; 1998-017245 JF - International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts AU - House, L AU - Phillips, W S AU - Fehler, M AU - Rutledge, J A2 - Kim, Kunsoo Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 437 PB - Pergamon, Oxford-New York VL - 34 IS - 3-4 SN - 0148-9062, 0148-9062 KW - tomography KW - hydraulic fracturing KW - body waves KW - monitoring KW - microseismic methods KW - joints KW - mapping KW - elastic waves KW - rock mechanics KW - fractures KW - velocity KW - seismic waves KW - microearthquakes KW - earthquakes KW - acoustical emissions KW - S-waves KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52622618?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.atitle=Can+hydraulic+fracture-induced+microearthquakes+show+where+the+fluid+went%3F&rft.au=House%2C+L%3BPhillips%2C+W+S%3BFehler%2C+M%3BRutledge%2C+J&rft.aulast=House&rft.aufirst=L&rft.date=1997-06-01&rft.volume=34&rft.issue=3-4&rft.spage=437&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.issn=01489062&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 36th U. S. Rock mechanics symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acoustical emissions; body waves; earthquakes; elastic waves; fractures; hydraulic fracturing; joints; mapping; microearthquakes; microseismic methods; monitoring; rock mechanics; S-waves; seismic waves; tomography; velocity ER - TY - JOUR T1 - Microseismicity induced by a controlled, mine collapse at White Pine, Michigan AN - 52621461; 1998-017417 JF - International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts AU - Phillips, W S AU - Pearson, D C AU - Edwards, C L AU - Stump, B W A2 - Kim, Kunsoo Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 683 PB - Pergamon, Oxford-New York VL - 34 IS - 3-4 SN - 0148-9062, 0148-9062 KW - United States KW - seismograms KW - P-waves KW - mines KW - failures KW - body waves KW - explosions KW - stress KW - Michigan Upper Peninsula KW - magnitude KW - elastic waves KW - Ontonagon County Michigan KW - aftershocks KW - cracks KW - seismicity KW - mining geology KW - seismic waves KW - Michigan KW - acoustical emissions KW - arrays KW - White Pine Michigan KW - pillars KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52621461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.atitle=Microseismicity+induced+by+a+controlled%2C+mine+collapse+at+White+Pine%2C+Michigan&rft.au=Phillips%2C+W+S%3BPearson%2C+D+C%3BEdwards%2C+C+L%3BStump%2C+B+W&rft.aulast=Phillips&rft.aufirst=W&rft.date=1997-06-01&rft.volume=34&rft.issue=3-4&rft.spage=683&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.issn=01489062&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 36th U. S. Rock mechanics symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acoustical emissions; aftershocks; arrays; body waves; cracks; elastic waves; explosions; failures; magnitude; Michigan; Michigan Upper Peninsula; mines; mining geology; Ontonagon County Michigan; P-waves; pillars; seismic waves; seismicity; seismograms; stress; United States; White Pine Michigan ER - TY - JOUR T1 - Los Alamos National Laboratory; Yucca Mountain Project publications (1979-1996) AN - 52542338; 1999-000236 AB - This over-350 title publication list reflects the accomplishments of Los Alamos Yucca Mountain Site Characterization Project researchers, who, since 1979, have been conducting multidisciplinary research to help determine if Yucca Mountain, Nevada, is a suitable site for a high-level waste repository. The titles can be accessed in two ways: by year, beginning with 1996 and working back to 1979, and by subject area: mineralogy/petrology/geology, volcanism, radionuclide solubility/ground-water chemistry; radionuclide sorption and transport; modeling/validation/field studies; summary/status reports, and quality assurance. JF - LA - Los Alamos Scientific Laboratory AU - Ruhala, E R AU - Klein, S H Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 105 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - high-level waste KW - concentration KW - sorption KW - isotopes KW - site exploration KW - pollutants KW - characterization KW - pollution KW - Nye County Nevada KW - bibliography KW - radioactive waste KW - models KW - Nevada Test Site KW - radioactive isotopes KW - transport KW - waste disposal KW - Yucca Mountain KW - mobility KW - underground disposal KW - Nevada KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52542338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Ruhala%2C+E+R%3BKlein%2C+S+H&rft.aulast=Ruhala&rft.aufirst=E&rft.date=1997-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Los+Alamos+National+Laboratory%3B+Yucca+Mountain+Project+publications+%281979-1996%29&rft.title=Los+Alamos+National+Laboratory%3B+Yucca+Mountain+Project+publications+%281979-1996%29&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1999-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97007299NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - bibliography; characterization; concentration; high-level waste; isotopes; mobility; models; Nevada; Nevada Test Site; Nye County Nevada; pollutants; pollution; radioactive isotopes; radioactive waste; site exploration; sorption; transport; underground disposal; United States; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Mortandad Canyon; elemental concentrations in vegetation, streambank soils, and stream sediments, 1979 AN - 52414859; 2000-000198 AB - In 1979, stream sediments, streambank soils, and streambank vegetation were sampled at 100 m intervals downstream of the outfall of the TA-50 radioactive liquid waste treatment facility in Mortandad Canyon. Sampling was discontinued at a distance of 3260 m at the location of the sediment traps in the canyon. The purpose of the sampling was to investigate the effect of the residual contaminants in the waste treatment facility effluent on elemental concentrations in various environmental media. JF - LA - Los Alamos Scientific Laboratory AU - Ferenbaugh, R W AU - Gladney, E S Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 12 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - isotopes KW - stream sediments KW - Mortandad Canyon KW - halogens KW - tritium KW - New Mexico KW - radioactive waste KW - bioaccumulation KW - radioactive isotopes KW - fluorine KW - sediments KW - cadmium KW - nitrate ion KW - chromium KW - mercury KW - soils KW - chlorine KW - concentration KW - alkaline earth metals KW - Plantae KW - sulfates KW - pollutants KW - pollution KW - phosphates KW - biota KW - liquid waste KW - metals KW - hydrogen KW - waste disposal KW - beryllium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52414859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Ferenbaugh%2C+R+W%3BGladney%2C+E+S&rft.aulast=Ferenbaugh&rft.aufirst=R&rft.date=1997-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Mortandad+Canyon%3B+elemental+concentrations+in+vegetation%2C+streambank+soils%2C+and+stream+sediments%2C+1979&rft.title=Mortandad+Canyon%3B+elemental+concentrations+in+vegetation%2C+streambank+soils%2C+and+stream+sediments%2C+1979&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97006915NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - alkaline earth metals; beryllium; bioaccumulation; biota; cadmium; chlorine; chromium; concentration; fluorine; halogens; hydrogen; isotopes; liquid waste; mercury; metals; Mortandad Canyon; New Mexico; nitrate ion; phosphates; Plantae; pollutants; pollution; radioactive isotopes; radioactive waste; sediments; soils; stream sediments; sulfates; tritium; United States; waste disposal ER - TY - JOUR T1 - Radionuclide concentrations, trends, and dose comparisons in soils collected from within and around Los Alamos National Laboratory; 1974-1996 AN - 52073061; 2002-064483 JF - Health Physics AU - Fresquez, P R AU - Armstrong, D R AU - Mullen, M A AU - Anonymous Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 65 EP - 66 PB - Pergamon, Long Island, NY VL - 72 IS - 6, Suppl. SN - 0017-9078, 0017-9078 KW - United States KW - soils KW - concentration KW - isotopes KW - radioactivity KW - pollutants KW - pollution KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - environmental analysis KW - radioactive fallout KW - spatial distribution KW - radioactive isotopes KW - nuclear facilities KW - geochemistry KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52073061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+Physics&rft.atitle=Radionuclide+concentrations%2C+trends%2C+and+dose+comparisons+in+soils+collected+from+within+and+around+Los+Alamos+National+Laboratory%3B+1974-1996&rft.au=Fresquez%2C+P+R%3BArmstrong%2C+D+R%3BMullen%2C+M+A%3BAnonymous&rft.aulast=Fresquez&rft.aufirst=P&rft.date=1997-06-01&rft.volume=72&rft.issue=6%2C+Suppl.&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Health+Physics&rft.issn=00179078&rft_id=info:doi/ L2 - http://www.health-physics.com/pt/re/healthphys/home.htm;jsessionid=G5qSTXSp0vDSHYTCTzDnLVFQz7CBNyYYSGk1jRLYMGG4QvPYTKvJ!1240718814!-949856144!8091!-1 LA - English DB - GeoRef N1 - Conference title - Forty-second annual meeting of the Health Physics Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - concentration; environmental analysis; geochemistry; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; nuclear facilities; pollutants; pollution; radioactive fallout; radioactive isotopes; radioactivity; soils; spatial distribution; United States ER - TY - JOUR T1 - Optimization and estimations of flow-transport characteristics on the basis of analytical solutions AN - 50468566; 2009-034688 JF - SIAM Conference on Mathematical and Computational Issues in the Geosciences AU - Kacimov, A R AU - Tartakovsky, Daniel M AU - Di Federico, Vittorio AU - Dawson, Clint N Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 46 PB - Society for Industrial and Applied Mathematics, [varies] VL - 4 KW - embankments KW - concentration KW - contaminant plumes KW - pollution KW - seepage KW - boundary conditions KW - two-dimensional models KW - ground water KW - aquifers KW - kinematics KW - hydraulic head KW - heterogeneous materials KW - Richards equation KW - water treatment KW - residence time KW - hydraulic conductivity KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50468566?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.atitle=Optimization+and+estimations+of+flow-transport+characteristics+on+the+basis+of+analytical+solutions&rft.au=Kacimov%2C+A+R%3BTartakovsky%2C+Daniel+M%3BDi+Federico%2C+Vittorio%3BDawson%2C+Clint+N&rft.aulast=Kacimov&rft.aufirst=A&rft.date=1997-06-01&rft.volume=4&rft.issue=&rft.spage=46&rft.isbn=&rft.btitle=&rft.title=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.issn=&rft_id=info:doi/ L2 - http://www.siam.org/meetings/archives.php LA - English DB - GeoRef N1 - Conference title - Fourth SIAM conference on Mathematical and computational issues in the geosciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06853 N1 - SubjectsTermNotLitGenreText - aquifers; boundary conditions; concentration; contaminant plumes; embankments; ground water; heterogeneous materials; hydraulic conductivity; hydraulic head; kinematics; pollution; residence time; Richards equation; seepage; two-dimensional models; water treatment ER - TY - JOUR T1 - Identification of groundwater contaminant sources by means of operational analysis AN - 50465457; 2009-034692 JF - SIAM Conference on Mathematical and Computational Issues in the Geosciences AU - Zhang, Dongxiao AU - Tartakovsky, Daniel M AU - Dawson, Clint N Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 47 PB - Society for Industrial and Applied Mathematics, [varies] VL - 4 KW - concentration KW - contaminant plumes KW - pollutants KW - entropy KW - prediction KW - pollution KW - inverse problem KW - Green function KW - Laplace transformations KW - measurement KW - ground water KW - aquifers KW - errors KW - breakthrough curves KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50465457?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.atitle=Identification+of+groundwater+contaminant+sources+by+means+of+operational+analysis&rft.au=Zhang%2C+Dongxiao%3BTartakovsky%2C+Daniel+M%3BDawson%2C+Clint+N&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1997-06-01&rft.volume=4&rft.issue=&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.issn=&rft_id=info:doi/ L2 - http://www.siam.org/meetings/archives.php LA - English DB - GeoRef N1 - Conference title - Fourth SIAM conference on Mathematical and computational issues in the geosciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06853 N1 - SubjectsTermNotLitGenreText - aquifers; breakthrough curves; concentration; contaminant plumes; entropy; errors; Green function; ground water; inverse problem; Laplace transformations; measurement; pollutants; pollution; prediction ER - TY - JOUR T1 - A three-dimensional multiphase flow model for immiscible fluids in porous media AN - 50464958; 2009-034664 JF - SIAM Conference on Mathematical and Computational Issues in the Geosciences AU - Kuiper, Logan K AU - Dawson, Clint N Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 41 PB - Society for Industrial and Applied Mathematics, [varies] VL - 4 KW - hydrology KW - experimental studies KW - pressure KW - numerical models KW - three-dimensional models KW - pollution KW - porous materials KW - fluid dynamics KW - advection KW - simulation KW - reservoir rocks KW - ground water KW - aquifers KW - nonaqueous phase liquids KW - models KW - finite element analysis KW - immiscibility KW - multiphase flow KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50464958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.atitle=A+three-dimensional+multiphase+flow+model+for+immiscible+fluids+in+porous+media&rft.au=Kuiper%2C+Logan+K%3BDawson%2C+Clint+N&rft.aulast=Kuiper&rft.aufirst=Logan&rft.date=1997-06-01&rft.volume=4&rft.issue=&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.issn=&rft_id=info:doi/ L2 - http://www.siam.org/meetings/archives.php LA - English DB - GeoRef N1 - Conference title - Fourth SIAM conference on Mathematical and computational issues in the geosciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06853 N1 - SubjectsTermNotLitGenreText - advection; aquifers; experimental studies; finite element analysis; fluid dynamics; ground water; hydrology; immiscibility; models; multiphase flow; nonaqueous phase liquids; numerical models; pollution; porous materials; pressure; reservoir rocks; simulation; three-dimensional models ER - TY - JOUR T1 - Support operator discretizations of flow problems in heterogeneous and non-isotropic media AN - 50463355; 2009-034723 JF - SIAM Conference on Mathematical and Computational Issues in the Geosciences AU - Steinberg, Stanly AU - Hyman, James AU - Shashkov, Misha AU - Dawson, Clint N Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 54 PB - Society for Industrial and Applied Mathematics, [varies] VL - 4 KW - models KW - isotropic materials KW - heterogeneous materials KW - non-isotropic materials KW - finite difference analysis KW - algorithms KW - preferential flow KW - reservoir rocks KW - ground water KW - diffusivity KW - aquifers KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50463355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.atitle=Support+operator+discretizations+of+flow+problems+in+heterogeneous+and+non-isotropic+media&rft.au=Steinberg%2C+Stanly%3BHyman%2C+James%3BShashkov%2C+Misha%3BDawson%2C+Clint+N&rft.aulast=Steinberg&rft.aufirst=Stanly&rft.date=1997-06-01&rft.volume=4&rft.issue=&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.issn=&rft_id=info:doi/ L2 - http://www.siam.org/meetings/archives.php LA - English DB - GeoRef N1 - Conference title - Fourth SIAM conference on Mathematical and computational issues in the geosciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06853 N1 - SubjectsTermNotLitGenreText - algorithms; aquifers; diffusivity; finite difference analysis; ground water; heterogeneous materials; isotropic materials; models; non-isotropic materials; preferential flow; reservoir rocks ER - TY - JOUR T1 - The impact of radioactive decay heat on the transport of radionuclide in the unsaturated zone at Yucca Mountain AN - 50462479; 2009-034720 JF - SIAM Conference on Mathematical and Computational Issues in the Geosciences AU - Robinson, Bruce A AU - Dawson, Clint N Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 53 EP - 54 PB - Society for Industrial and Applied Mathematics, [varies] VL - 4 KW - United States KW - aquifer vulnerability KW - neptunium KW - isotopes KW - unsaturated zone KW - radioactive decay KW - radioactive waste KW - ground water KW - radioactive isotopes KW - transport KW - heat flow KW - Yucca Mountain KW - Nevada KW - technetium KW - Np-237 KW - pollution KW - Tc-99 KW - migration of elements KW - Nye County Nevada KW - aquifers KW - metals KW - heat transfer KW - waste disposal KW - actinides KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50462479?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.atitle=The+impact+of+radioactive+decay+heat+on+the+transport+of+radionuclide+in+the+unsaturated+zone+at+Yucca+Mountain&rft.au=Robinson%2C+Bruce+A%3BDawson%2C+Clint+N&rft.aulast=Robinson&rft.aufirst=Bruce&rft.date=1997-06-01&rft.volume=4&rft.issue=&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.issn=&rft_id=info:doi/ L2 - http://www.siam.org/meetings/archives.php LA - English DB - GeoRef N1 - Conference title - Fourth SIAM conference on Mathematical and computational issues in the geosciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06853 N1 - SubjectsTermNotLitGenreText - actinides; aquifer vulnerability; aquifers; ground water; heat flow; heat transfer; isotopes; metals; migration of elements; neptunium; Nevada; Np-237; Nye County Nevada; pollution; radioactive decay; radioactive isotopes; radioactive waste; Tc-99; technetium; transport; United States; unsaturated zone; waste disposal; Yucca Mountain ER - TY - JOUR T1 - A sensitivity study of three-dimensional spherical mantle convection at 10 (super 8) Rayleigh number; effects of depth-dependent viscosity, heating mode, and an endothermic phase change AN - 50169504; 1998-001024 AB - Mantle convection is influenced simultaneously by a number of physical effects: brittle failure in the surface plates, strongly variable viscosity, mineral phase changes, and both internal heating (radioactivity) and bottom heating from the core. Here we present a systematic study of three potentially important effects: depth-dependent viscosity, an endothermic phase change, and bottom versus internal heating. We model three-dimensional spherical convection at Rayleigh Ra = 10 (super 8) thus approaching the dynamical regime of the mantle. An isoviscous, internally heated reference model displays point-like downwellings from the cold upper boundary layer, a blue spectrum of thermal heterogeneity, and small but rapid time variations in flow diagnostics. A modest factor 30 increase in lower mantle viscosity results in a planform dominated by long, linear downwellings, a red spectrum, and great temporal stability. Bottom heating has the predictable effect of adding a thermal boundary layer at the base of the mantle. We use a Clapeyron slope of gamma = -4 MPa degrees K (super -1) for the 670 km phase transition, resulting in a phase buoyancy parameter of P = -0.112. This phase change causes upwellings and downwellings to pause in the transition zone but has little influence on the inherent time dependence of flow and only a modest reddening effect on the heterogeneity spectrum. Larger values of P result in stronger effects, but our choice of P is likely already too large to be representative of the mantle transition zone. Combinations of all three effects are remarkably predictable in terms of the single-effect models, and the effect of depth-dependent viscosity is found to be dominant. JF - Journal of Geophysical Research AU - Bunge, Hans-Peter AU - Richards, Mark A AU - Baumgardner, John R Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 7 EP - 12,007 PB - American Geophysical Union, Washington, DC VL - 102 IS - B6 SN - 0148-0227, 0148-0227 KW - Rayleigh number KW - plate tectonics KW - numerical models KW - viscosity KW - transition zones KW - three-dimensional models KW - endothermic reactions KW - mantle KW - phase transitions KW - subduction KW - convection KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50169504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=A+sensitivity+study+of+three-dimensional+spherical+mantle+convection+at+10+%28super+8%29+Rayleigh+number%3B+effects+of+depth-dependent+viscosity%2C+heating+mode%2C+and+an+endothermic+phase+change&rft.au=Bunge%2C+Hans-Peter%3BRichards%2C+Mark+A%3BBaumgardner%2C+John+R&rft.aulast=Bunge&rft.aufirst=Hans-Peter&rft.date=1997-06-01&rft.volume=102&rft.issue=B6&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F96JB038060 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 121 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 plates, 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - convection; endothermic reactions; mantle; numerical models; phase transitions; plate tectonics; Rayleigh number; subduction; three-dimensional models; transition zones; viscosity DO - http://dx.doi.org/10.1029/96JB038060 ER - TY - JOUR T1 - Detailed joint structure in a geothermal reservoir from studies of induced microearthquake clusters AN - 50168472; 1998-001009 AB - Microearthquake clusters form distinct, planar patterns within five study regions of a geothermal reservoir undergoing hydraulic fracturing at Fenton Hill, New Mexico. The patterns define individual, slipping joint surfaces of dimension 40-120 m, containing 80-150 events each. Sharp, straight edges truncate the clusters; we interpret these as marking intersections with aseismic joints. Each edge orientation is consistent with an intersection between the active joint and a plane oriented parallel to one of the other clusters we identify. Therefore it appears that cluster shapes constrain the geometry of seismic and aseismic joints; both could be important components of the fluid-flow network. The distribution of inferred slip plane orientations is consistent with but fails to provide sufficient constraint to differentiate conclusively between two, very different, stress field estimates, one measured using pressurization and wellbore breakouts, the other using focal mechanisms of the largest microearthquakes. An impermeable joint model, requiring pore pressure in excess of the normal stress on a joint before slip can occur, was inconsistent with many of the inferred slip plane orientations. The high-quality locations were possible because events from the same cluster generated nearly similar waveforms, permitting the precise determination of relative arrival times. Standard deviations of arrival-time residuals fall between 0.1 and 1.1 ms for these clusters. Major axes and aspect ratios of the 90% confidence ellipsoids range from 6 to 28 m and 1.5 to 8, respectively. Small events dominate the seismic energy release and thoroughly populate the identified, active joints, allowing the hypocenters to reflect details of the joint structure. To further investigate the reservoir structure, we applied a source-array, slant-stack technique to waveforms from the well-located clusters, yielding directions that scattered energy left each cluster. By studying paths of scattered waves we expected to pinpoint impedance contrasts that might have indicated concentrations of fluid-filled joints. However, results show that scattered energy in the S wave coda left the source region in the same direction as the direct S wave. Direct waves may have excited borehole tube waves that became trapped in the vicinity of the geophone tool, overwhelming any energy scattered from the reservoir. Copyright 1997 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Phillips, W Scott AU - House, Leigh S AU - Fehler, Michael C Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 11 EP - 11,763 PB - American Geophysical Union, Washington, DC VL - 102 IS - B6 SN - 0148-0227, 0148-0227 KW - United States KW - Sandoval County New Mexico KW - joints KW - elastic waves KW - New Mexico KW - displacements KW - fractures KW - style KW - fault planes KW - tectonics KW - induced earthquakes KW - seismotectonics KW - faults KW - Radon transforms KW - hydraulic fracturing KW - body waves KW - experimental studies KW - patterns KW - swarms KW - seismology KW - geometry KW - geothermal reservoirs KW - Fenton Hill KW - seismic waves KW - microearthquakes KW - earthquakes KW - S-waves KW - 19:Seismology KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50168472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Detailed+joint+structure+in+a+geothermal+reservoir+from+studies+of+induced+microearthquake+clusters&rft.au=Phillips%2C+W+Scott%3BHouse%2C+Leigh+S%3BFehler%2C+Michael+C&rft.aulast=Phillips&rft.aufirst=W&rft.date=1997-06-01&rft.volume=102&rft.issue=B6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F97JB00762 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - body waves; displacements; earthquakes; elastic waves; experimental studies; fault planes; faults; Fenton Hill; fractures; geometry; geothermal reservoirs; hydraulic fracturing; induced earthquakes; joints; microearthquakes; New Mexico; patterns; Radon transforms; S-waves; Sandoval County New Mexico; seismic waves; seismology; seismotectonics; style; swarms; tectonics; United States DO - http://dx.doi.org/10.1029/97JB00762 ER - TY - JOUR T1 - The elastic constants of San Carlos Olivine to 17 GPa AN - 50166778; 1998-001040 AB - All elastic constants, the average bulk and shear moduli, and the lattice parameters of San Carlos olivine (Fo (sub 90) ) (initial density 3.355 gm/cm (super 3) ) have been determined to a pressure of 12 GPa at room temperature. Measurements of c (sub 11) , c (sub 33) , c (sub 13) , and c (sub 55) have been extended to 17 GPa. The pressure dependence of the adiabatic, isotropic (Hashin-Shtrikman bounds) bulk modulus, and shear modulus may be expressed as K (sub HS) = 129.4 + 4.29 P and by G (sub HS) = 78 + 1.71P - 0.027 P (super 2) , where both the pressure and the moduli are in gigapascals. The isothermal compression of olivine is described by a bulk modulus given as K (sub T ) = 126.3 + 4.28 P. Elastic constants other than c (sub 55) can be adequately represented by a linear relationship in pressure. In the order (c (sub 11) , c (sub 12) , c (sub 13) , c (sub 22) , c (sub 23) , c (sub 33) , c (sub 44) , c (sub 55) , c (sub 66) ) the 1 bar intercepts (gigapascal units) are (320.5, 68.1, 71.6, 196.5, 76.8, 233.5, 64.0, 77.0, 78.7). The first derivatives are (6.54, 3.86, 3.57, 5.38, 3.37, 5.51, 1.67, 1.81, 1.93). The second derivative for c (sub 55) is -0.070 GPa (super -1) . Incompressibilities for the three axes may also be expressed as linear relationships with pressure. In the order of a, b, and c axes the intercepts in gigapascals are (547.8, 285.8, 381.8) and the first derivatives are (20.1, 12.3, 14.0). Copyright 1997 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Abramson, E H AU - Brown, J M AU - Slutsky, L J AU - Zaug, J Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 12 EP - 12,263 PB - American Geophysical Union, Washington, DC VL - 102 IS - B6 SN - 0148-0227, 0148-0227 KW - silicates KW - experimental studies KW - pressure KW - olivine group KW - elastic constants KW - bulk modulus KW - San Carlos Olivine KW - high pressure KW - nesosilicates KW - olivine KW - orthosilicates KW - lattice parameters KW - equations of state KW - shear modulus KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50166778?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+elastic+constants+of+San+Carlos+Olivine+to+17+GPa&rft.au=Abramson%2C+E+H%3BBrown%2C+J+M%3BSlutsky%2C+L+J%3BZaug%2C+J&rft.aulast=Abramson&rft.aufirst=E&rft.date=1997-06-01&rft.volume=102&rft.issue=B6&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F97JB00682 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 24 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bulk modulus; elastic constants; equations of state; experimental studies; high pressure; lattice parameters; nesosilicates; olivine; olivine group; orthosilicates; pressure; San Carlos Olivine; shear modulus; silicates DO - http://dx.doi.org/10.1029/97JB00682 ER - TY - JOUR T1 - On Simulating Flows with Multiple Time Scales Using a Method of Averages AN - 1031295975; 16723500 AB - We present a new method, based on averaging, to simulate certain systems with multiple time scales efficiently and demonstrate its utility in the context of the shallow-water equations. We first develop the method in a simple linear setting and analytically prove its stability. This is followed by an extension to the full equations and a presentation of a computational model for it. In this preliminary study, we find that the new method produces results that are very close to a fully explicit (spatially and temporally) second-order accurate scheme and much better than a fully explicit (spatially and temporally) first-order accurate scheme, while costing less than the first-order accurate scheme. JF - Theoretical and Computational Fluid Dynamics AU - Nadiga, B T AU - Hecht, M W AU - Margolin, L G AU - Smolarkiewicz, P K AD - Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A., US Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 281 EP - 292 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 9 IS - 3-4 SN - 0935-4964, 0935-4964 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Mathematical models KW - Hydrodynamics KW - Shallow water KW - Fluid dynamics KW - Utilities KW - Model Studies KW - Q2 09183:Physics and chemistry KW - SW 0540:Properties of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1031295975?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Theoretical+and+Computational+Fluid+Dynamics&rft.atitle=On+Simulating+Flows+with+Multiple+Time+Scales+Using+a+Method+of+Averages&rft.au=Nadiga%2C+B+T%3BHecht%2C+M+W%3BMargolin%2C+L+G%3BSmolarkiewicz%2C+P+K&rft.aulast=Nadiga&rft.aufirst=B&rft.date=1997-06-01&rft.volume=9&rft.issue=3-4&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Theoretical+and+Computational+Fluid+Dynamics&rft.issn=09354964&rft_id=info:doi/10.1007%2Fs001620050045 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Mathematical models; Shallow water; Fluid dynamics; Hydrodynamics; Utilities; Model Studies DO - http://dx.doi.org/10.1007/s001620050045 ER - TY - JOUR T1 - Evaluation of continuous air monitor placement in a plutonium facility. AN - 78953213; 9106715 AB - Department of Energy appraisers found continuous air monitors at Department of Energy plutonium facilities alarmed less than 30% of the time when integrated room plutonium air concentrations exceeded 500 DAC-hours. Without other interventions, this alarm percentage suggests the possibility that workers could be exposed to high airborne concentrations without continuous air monitor alarms. Past research has shown that placement of continuous air monitors is a critical component in rapid and reliable detection of airborne releases. At Los Alamos National Laboratory and many other Department of Energy plutonium facilities, continuous air monitors have been primarily placed at ventilation exhaust points. The purpose of this study was to evaluate and compare the effectiveness of exhaust register placement of workplace continuous air monitors with other sampling locations. Polydisperse oil aerosols were released from multiple locations in two plutonium laboratories at Los Alamos National Laboratory. An array of laser particle counters positioned in the rooms measured time-resolved aerosol dispersion. Results showed alternative placement of air samplers generally resulted in aerosol detection that was faster, often more sensitive, and equally reliable compared with samplers at exhaust registers. JF - Health physics AU - Whicker, J J AU - Rodgers, J C AU - Fairchild, C I AU - Scripsick, R C AU - Lopez, R C AD - Los Alamos National Laboratory, NM 87545, USA. Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 734 EP - 743 VL - 72 IS - 5 SN - 0017-9078, 0017-9078 KW - Aerosols KW - 0 KW - Uranium KW - 4OC371KSTK KW - Plutonium KW - 53023GN24M KW - Index Medicus KW - United States KW - Radioactive Hazard Release -- statistics & numerical data KW - Government Agencies KW - Time Factors KW - Air Pollution, Indoor -- analysis KW - Uranium -- analysis KW - Radiation Monitoring KW - Plutonium -- analysis KW - Nuclear Reactors KW - Air Pollution, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78953213?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Evaluation+of+continuous+air+monitor+placement+in+a+plutonium+facility.&rft.au=Whicker%2C+J+J%3BRodgers%2C+J+C%3BFairchild%2C+C+I%3BScripsick%2C+R+C%3BLopez%2C+R+C&rft.aulast=Whicker&rft.aufirst=J&rft.date=1997-05-01&rft.volume=72&rft.issue=5&rft.spage=734&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-05-05 N1 - Date created - 1997-05-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A model for microbially induced precipitation of vadose-zone calcites in fractures at Los Alamos, New Mexico, USA AN - 52712066; 1997-040811 AB - The processes leading to the precipitation of calcite fracture fillings in the Tshirege member of the Bandelier Tuff are studied and the petrography, mineralogy and geochemistry presented. Analyses are listed of stable isotopes of the fillings, calcite fluid-inclusion gases, lipid biomarkers and age determinations. The fluid-inclusion gases include Ar, CH (sub 4) , CO (sub 2) , H (sub 2) , N (sub 2) and little or no O (sub 2) which, apart from Ar and CO (sub 2) , were formed through anaerobic microbial decay. SEM of the calcite confirmed the importance of fungi and bacteria in the fracture system. A diverse microbial community existed in the fractures. A model is presented describing the transition from a root-filled to a calcite-filled fracture, includes the fungal decay of roots, fungally produced Ca oxalate and the formation of anaerobic gases. JF - Geochimica et Cosmochimica Acta AU - Newman, Brent D AU - Campbell, Andrew R AU - Norman, David I AU - Ringelberg, David B Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 1783 EP - 1792 PB - Pergamon, Oxford VL - 61 IS - 9 SN - 0016-7037, 0016-7037 KW - lipids KW - unsaturated zone KW - mass spectra KW - New Mexico KW - Los Alamos County New Mexico KW - carbon KW - inclusions KW - absolute age KW - Plantae KW - Quaternary KW - C-13/C-12 KW - alkanes KW - models KW - organic compounds KW - organic acids KW - hydrocarbons KW - Pleistocene KW - fluid inclusions KW - carbonates KW - SEM data KW - north-central New Mexico KW - microorganisms KW - United States KW - thallophytes KW - crystal form KW - oxygen KW - fatty acids KW - isotopes KW - aliphatic hydrocarbons KW - crystal growth KW - stable isotopes KW - Cenozoic KW - fractures KW - radioactive isotopes KW - Bandelier Tuff KW - dates KW - Santa Fe County New Mexico KW - spectra KW - geochemistry KW - organic materials KW - methane KW - isotope ratios KW - O-18/O-16 KW - Los Alamos National Laboratory KW - veins KW - biomarkers KW - gases KW - calcite KW - biogenic processes KW - precipitation KW - upper Quaternary KW - bacteria KW - anaerobic environment KW - C-14 KW - 02D:Isotope geochemistry KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52712066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=A+model+for+microbially+induced+precipitation+of+vadose-zone+calcites+in+fractures+at+Los+Alamos%2C+New+Mexico%2C+USA&rft.au=Newman%2C+Brent+D%3BCampbell%2C+Andrew+R%3BNorman%2C+David+I%3BRingelberg%2C+David+B&rft.aulast=Newman&rft.aufirst=Brent&rft.date=1997-05-01&rft.volume=61&rft.issue=9&rft.spage=1783&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2897%2900025-2 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 41 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; aliphatic hydrocarbons; alkanes; anaerobic environment; bacteria; Bandelier Tuff; biogenic processes; biomarkers; C-13/C-12; C-14; calcite; carbon; carbonates; Cenozoic; crystal form; crystal growth; dates; fatty acids; fluid inclusions; fractures; gases; geochemistry; hydrocarbons; inclusions; isotope ratios; isotopes; lipids; Los Alamos County New Mexico; Los Alamos National Laboratory; mass spectra; methane; microorganisms; models; New Mexico; north-central New Mexico; O-18/O-16; organic acids; organic compounds; organic materials; oxygen; Plantae; Pleistocene; precipitation; Quaternary; radioactive isotopes; Santa Fe County New Mexico; SEM data; spectra; stable isotopes; thallophytes; United States; unsaturated zone; upper Quaternary; veins DO - http://dx.doi.org/10.1016/S0016-7037(97)00025-2 ER - TY - JOUR T1 - The chemical and isotopic composition of fumarolic gases and spring discharges from Galeras Volcano, Colombia AN - 52708607; 1997-052446 AB - Galeras fumarole discharges have been collected since its reactivation, in 1988, through December 1995. The gases are dominated by H (sub 2) O, CO (sub 2) , S (as SO (sub 2) and H (sub 2) S) and HCl. The relative proportions of these gases classify them as "magmatic". Thermodynamic equilibrium temperatures of the gases range from 260 to >600 degrees C. The relative abundance of inert gases, N (sub 2) , Ar and He, can be used as "tracers" to identify the source of the fumarole discharges. At Galeras the majority of the samples have a composition characteristic of gases originating from arc-related magmas, with relatively high N (sub 2) contents and minor He and Ar. During 1993, the year of frequent eruptions, the gas composition changed to basaltic or "mantle-derived" gases, with significantly higher He contents. This is interpreted to be the result of injection of volatiles from a basaltic magma body at depth prior to and during the increased eruptive activity of 1993. The delta (super 13) C values for CO (sub 2) in fumarole discharges are typical of andesitic volcanoes and may indicate addition of MORB-derived CO (sub 2) . The delta (super 15) N values for N (sub 2) may indicate significant contribution of N (sub 2) from marine sediments and only minor contribution of MORB-derived N (sub 2) . The delta D and delta (super 18) O values of the discharging steam lie on a mixing trend between the isotopic composition of "arc-related" magmatic water and (super 18) O-shifted meteoric water. The most magmatic discharges have delta D values of -30 to -35 per mil; while the most meteoric discharges have values of -70 to -75 per mil, similar to Galeras thermal spring waters. Galeras thermal water discharges consist of acid sulfate and bicarbonate waters. S/Cl ratios in the acid sulfate waters are similar to fumarole ratios, suggesting direct absorption of magmatic gases into shallow ground waters. This is supported by the essentially meteoric delta D and delta (super 18) O values of the discharges and by elevated (super 3) He/ (super 4) He ratios of thermal spring waters. The absorption of acid S- and Cl-rich gases yield acid waters which are capable of dissolving rocks. The thermal waters, however, are far from equilibrium with Galeras lavas and pyroclastic rocks, providing evidence of the immaturity of the Galeras hydrothermal system. The SO (sub 4) and Cl content, as well as the O and H isotopic composition of Galeras thermal springs vary with the activity of the volcano. The 7-year sampling program at Galeras revealed intriguing results concerning the activity of Galeras, its magmatic-hydrothermal system and the origin of the volatiles. Despite decreasing outlet temperatures since 1992, deep temperatures remain high, implying continued unrest in the Galeras magmatic system. JF - Journal of Volcanology and Geothermal Research AU - Fischer, Tobias P AU - Sturchio, Neil C AU - Stix, John AU - Arehart, Greg B AU - Counce, Dale AU - Williams, Stanley N A2 - Stix, John A2 - Calvache V., Marta Lucia A2 - Williams, Stanley N. Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 229 EP - 253 PB - Elsevier, Amsterdam VL - 77 IS - 1-4 SN - 0377-0273, 0377-0273 KW - volcanic rocks KW - oxygen KW - isotopes KW - igneous rocks KW - fumaroles KW - Colombia KW - Galeras KW - stable isotopes KW - nitrogen KW - volcanism KW - carbon KW - springs KW - discharge KW - chemical composition KW - geochemistry KW - processes KW - meteoric water KW - Andes KW - N-15/N-14 KW - isotope ratios KW - C-13/C-12 KW - O-18/O-16 KW - gases KW - pyroclastics KW - South America KW - lava KW - D/H KW - magmas KW - hydrogen KW - eruptions KW - volcanoes KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52708607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=The+chemical+and+isotopic+composition+of+fumarolic+gases+and+spring+discharges+from+Galeras+Volcano%2C+Colombia&rft.au=Fischer%2C+Tobias+P%3BSturchio%2C+Neil+C%3BStix%2C+John%3BArehart%2C+Greg+B%3BCounce%2C+Dale%3BWilliams%2C+Stanley+N&rft.aulast=Fischer&rft.aufirst=Tobias&rft.date=1997-05-01&rft.volume=77&rft.issue=1-4&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2896%2900096-0 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 90 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Special issue N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Andes; C-13/C-12; carbon; chemical composition; Colombia; D/H; discharge; eruptions; fumaroles; Galeras; gases; geochemistry; hydrogen; igneous rocks; isotope ratios; isotopes; lava; magmas; meteoric water; N-15/N-14; nitrogen; O-18/O-16; oxygen; processes; pyroclastics; South America; springs; stable isotopes; volcanic rocks; volcanism; volcanoes DO - http://dx.doi.org/10.1016/S0377-0273(96)00096-0 ER - TY - JOUR T1 - Depth profile of (super 41) Ca in an Apollo 15 drill core and the low-energy neutron flux in the Moon AN - 52697476; 1997-049425 AB - Systematic measurements of the concentrations of cosmogenic (super 41) Ca (half-life = 1.04X10 (super 5) yr) in the Apollo 15 long core 15001-15006 were performed by accelerator mass spectroscopy. Earlier measurements of cosmogenic (super 10) Be, (super 14) C, (super 26) Al, (super 36) Cl, and (super 53) Mn in the same core have provided confirmation and improvement of theoretical models for predicting production profiles of nuclides by cosmic ray induced spallation in the Moon and large meteorites. Unlike these nuclides, (super 41) Ca in the lunar surface is produced mainly by thermal neutron capture reactions on (super 40) Ca. The maximum production of (super 41) Ca, about 1 dpm/g Ca, was observed at a depth in the Moon of about 150 g/cm (super 2) . For depths below about 300 g/cm (super 2) , (super 41) Ca production falls off exponentially with an e-folding length of 175 g/cm (super 2) . Neutron production in the Moon was modeled with the Los Alamos High Energy Transport Code System, and yields of nuclei produced by low-energy thermal and epithermal neutrons were calculated with the Monte Carlo N-Particle code. The new theoretical calculations using these codes are in good agreement with our measured (super 41) Ca concentrations as well as with (super 60) Co and direct neutron fluence measurements in the Moon. JF - Earth and Planetary Science Letters AU - Nishiizumi, K AU - Fink, D AU - Klein, J AU - Middleton, R AU - Masarik, J AU - Reedy, R C AU - Arnold, J R Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 545 EP - 552 PB - Elsevier, Amsterdam VL - 148 IS - 3-4 SN - 0012-821X, 0012-821X KW - calcium KW - concentration KW - alkaline earth metals KW - Moon KW - isotopes KW - Ca-41 KW - cosmogenic elements KW - mathematical models KW - Apollo Program KW - cores KW - measurement KW - geochemical profiles KW - theoretical studies KW - radioactive isotopes KW - neutrons KW - metals KW - Apollo 15 KW - geochemistry KW - lunar soils KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52697476?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Depth+profile+of+%28super+41%29+Ca+in+an+Apollo+15+drill+core+and+the+low-energy+neutron+flux+in+the+Moon&rft.au=Nishiizumi%2C+K%3BFink%2C+D%3BKlein%2C+J%3BMiddleton%2C+R%3BMasarik%2C+J%3BReedy%2C+R+C%3BArnold%2C+J+R&rft.aulast=Nishiizumi&rft.aufirst=K&rft.date=1997-05-01&rft.volume=148&rft.issue=3-4&rft.spage=545&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2FS0012-821X%2897%2900051-4 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 41 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Apollo 15; Apollo Program; Ca-41; calcium; concentration; cores; cosmogenic elements; geochemical profiles; geochemistry; isotopes; lunar soils; mathematical models; measurement; metals; Moon; neutrons; radioactive isotopes; theoretical studies DO - http://dx.doi.org/10.1016/S0012-821X(97)00051-4 ER - TY - JOUR T1 - Stratigraphy and distribution of Cerro Toledo tephras and volcaniclastic sediments beneath the Pajarito Plateau, Jemez Mountains, New Mexico AN - 50333971; 1997-062919 JF - New Mexico Geology AU - Lavine, A AU - Heiken, G AU - Stix, J AU - Anonymous Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 61 EP - 62 PB - New Mexico Bureau of Mines and Mineral Resources, Socorro, NM VL - 19 IS - 2 SN - 0196-948X, 0196-948X KW - United States KW - volcanic rocks KW - Quaternary KW - igneous rocks KW - Pajarito Plateau KW - New Mexico KW - distribution KW - Cenozoic KW - pyroclastics KW - volcaniclastics KW - volcanism KW - magmas KW - eruptions KW - Pleistocene KW - Jemez Mountains KW - magma chambers KW - Cerro Toledo Rhyolite KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=New+Mexico+Geology&rft.atitle=Stratigraphy+and+distribution+of+Cerro+Toledo+tephras+and+volcaniclastic+sediments+beneath+the+Pajarito+Plateau%2C+Jemez+Mountains%2C+New+Mexico&rft.au=Lavine%2C+A%3BHeiken%2C+G%3BStix%2C+J%3BAnonymous&rft.aulast=Lavine&rft.aufirst=A&rft.date=1997-05-01&rft.volume=19&rft.issue=2&rft.spage=61&rft.isbn=&rft.btitle=&rft.title=New+Mexico+Geology&rft.issn=0196948X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society annual spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - NM N1 - Last updated - 2012-06-07 N1 - CODEN - NMGED2 N1 - SubjectsTermNotLitGenreText - Cenozoic; Cerro Toledo Rhyolite; distribution; eruptions; igneous rocks; Jemez Mountains; magma chambers; magmas; New Mexico; Pajarito Plateau; Pleistocene; pyroclastics; Quaternary; United States; volcanic rocks; volcaniclastics; volcanism ER - TY - JOUR T1 - Protactinium-231 dating of carbonates by thermal ionization mass spectrometry; implications for Quaternary climate change AN - 50327013; 1997-042313 JF - Science AU - Edwards, R Lawrence AU - Cheng, H AU - Murrell, M T AU - Goldstein, S J Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 782 EP - 786 PB - American Association for the Advancement of Science, Washington, DC VL - 276 IS - 5313 SN - 0036-8075, 0036-8075 KW - United States KW - last glacial maximum KW - Th-230 KW - isotopes KW - thermal ionization mass spectra KW - Barbados KW - mass spectra KW - paleoclimatology KW - orbital forcing KW - Cenozoic KW - radioactive isotopes KW - dates KW - protactinium KW - Lesser Antilles KW - Anthozoa KW - absolute age KW - Invertebrata KW - spectra KW - Pa-231 KW - climate forcing KW - Nevada KW - precision KW - Quaternary KW - West Indies KW - Caribbean region KW - Devil's Hole KW - Coelenterata KW - calcite KW - Antilles KW - sea-level changes KW - metals KW - thorium KW - insolation KW - uranium KW - Cnidaria KW - carbonates KW - actinides KW - accuracy KW - U-235 KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50327013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Protactinium-231+dating+of+carbonates+by+thermal+ionization+mass+spectrometry%3B+implications+for+Quaternary+climate+change&rft.au=McQuaid%2C+F.%3BBowden-Jones%2C+O.%3BWeaver%2C+T.&rft.aulast=McQuaid&rft.aufirst=F.&rft.date=2007-03-01&rft.volume=190&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+British+Journal+of+Psychiatry&rft.issn=00071250&rft_id=info:doi/10.1192%2Fbjp.190.3.272 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; actinides; Anthozoa; Antilles; Barbados; calcite; carbonates; Caribbean region; Cenozoic; climate forcing; Cnidaria; Coelenterata; dates; Devil's Hole; insolation; Invertebrata; isotopes; last glacial maximum; Lesser Antilles; mass spectra; metals; Nevada; orbital forcing; Pa-231; paleoclimatology; precision; protactinium; Quaternary; radioactive isotopes; sea-level changes; spectra; Th-230; thermal ionization mass spectra; thorium; U-235; United States; uranium; West Indies ER - TY - JOUR T1 - What happens when predators do not completely consume their prey? AN - 16220995; 4218307 AB - A mathematical model is presented for the dynamics of predator-prey interactions when predators do not consume prey (or clumps of prey) in their entirety. Using a combination of analytical and numerical methods, I demonstrate that predator-mediated changes in the distribution of intact and partially consumed prey can affect the outcome of competition between predators in unexpected ways. In some cases, two predators can coexist on a single prey species owing to tradeoffs between the ability to consume prey completely and other competitive abilities. In other cases, predators exhibit frequency-dependent dynamics in which the first predator to occupy the habitat can prevent the other from invading. Conditions for stable coexistence usually expand if the larger predator scatters uneaten prey parts, if prey renewal includes both small and large items, or if the predator with the smaller retrieval capacity is poor at catching intact prey relative to the other predator. JF - Theoretical Population Biology AU - Mittler, J AD - Theoretical Biology and Biophysics, Mail stop: K710, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 238 EP - 251 VL - 51 IS - 3 SN - 0040-5809, 0040-5809 KW - community development KW - food consumption KW - interspecific relationships KW - models KW - predator-prey interactions KW - Animal Behavior Abstracts; Ecology Abstracts KW - Y 25841:General KW - D 04615:Ecology studies - general KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16220995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Theoretical+Population+Biology&rft.atitle=What+happens+when+predators+do+not+completely+consume+their+prey%3F&rft.au=Mittler%2C+J&rft.aulast=Mittler&rft.aufirst=J&rft.date=1997-05-01&rft.volume=51&rft.issue=3&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Theoretical+Population+Biology&rft.issn=00405809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Characterization of two DNA double-stranded break repair-deficient cell lines that express inactive DNA-dependent protein kinase catalytic subunits. AN - 78907484; 9092571 AB - The DNA-dependent protein kinase (DNA-PK) is a trimeric enzyme consisting of a 460-kDa catalytic subunit (DNA-PKcs) and a heterodimeric regulatory complex called Ku, which is comprised of 70 (Ku70) and 86 (Ku80) kDa subunits. Mutations that affect the expression of the catalytic or Ku80 subunits of DNA-PK disrupt both V(D)J recombination and DNA double-stranded break repair pathways. In this report, we show that two previously uncharacterized rodent cell lines that are defective in DNA double-stranded break repair express catalytically inactive DNA-PK. The DNA-PKcs from the DNA double-stranded break repair mutant cell lines IRS-20 and SX-9 assembles on double-stranded DNA but fails to function as a protein kinase. In addition to the kinase defect, the abundance of the DNA-PKcs from both of these cell lines is reduced relative to wild-type controls. These results suggest that the DNA-PKcs gene from each of these cell lines contains mutations that inactivate the enzymatic activity and the expression or stability of the gene product. These data further strengthen the hypothesis that DNA-PK-mediated protein phosphorylation is a necessary component of the DNA double-stranded break repair pathway. JF - The Journal of biological chemistry AU - Peterson, S R AU - Stackhouse, M AU - Waltman, M J AU - Chen, F AU - Sato, K AU - Chen, D J AD - Life Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. spete@telomer.lanl.gov Y1 - 1997/04/11/ PY - 1997 DA - 1997 Apr 11 SP - 10227 EP - 10231 VL - 272 IS - 15 SN - 0021-9258, 0021-9258 KW - DNA-Binding Proteins KW - 0 KW - Recombinant Proteins KW - Replication Protein A KW - DNA KW - 9007-49-2 KW - DNA-Activated Protein Kinase KW - EC 2.7.11.1 KW - Protein-Serine-Threonine Kinases KW - DNA Helicases KW - EC 3.6.4.- KW - Index Medicus KW - Animals KW - Phosphorylation KW - DNA Helicases -- metabolism KW - Recombinant Proteins -- metabolism KW - CHO Cells KW - Molecular Weight KW - DNA Replication KW - Cell Line KW - Protein Conformation KW - Mutagenesis KW - DNA-Binding Proteins -- metabolism KW - Cricetinae KW - DNA Repair -- genetics KW - Protein-Serine-Threonine Kinases -- chemistry KW - Protein-Serine-Threonine Kinases -- metabolism KW - DNA -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78907484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+biological+chemistry&rft.atitle=Characterization+of+two+DNA+double-stranded+break+repair-deficient+cell+lines+that+express+inactive+DNA-dependent+protein+kinase+catalytic+subunits.&rft.au=Peterson%2C+S+R%3BStackhouse%2C+M%3BWaltman%2C+M+J%3BChen%2C+F%3BSato%2C+K%3BChen%2C+D+J&rft.aulast=Peterson&rft.aufirst=S&rft.date=1997-04-11&rft.volume=272&rft.issue=15&rft.spage=10227&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-05-15 N1 - Date created - 1997-05-15 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Influence of change in physical state on elastic nonlinear response in rock; significance of effective pressure and water saturation AN - 50169689; 1997-056204 AB - We describe Young's mode resonant bar results obtained under effective pressure at two saturation states: dry and water saturated. We monitor primary manifestations of nonlinear response in these experiments: the harmonic content, the source extinction intensity, and fundamental resonant frequency shift. In addition, we describe the hysteretic behavior of the static pressure response, the linear modulus, and Q. Because we currently lack a complete theoretical description of nonlinear behavior under resonance at pressure, we provide relative measures of nonlinear response rather than absolute values. The rocks include Fontainebleau and Meule sandstones and Lavoux limestone. Dynamic strain levels range from 10 (super -8) to 10 (super -5) and frequencies range from 1 to 10 kHz. The elastic nonlinear response of each of the rocks is markedly different over the range of physical property states explored. The different responses are related to differences in mechanical response resulting from rock type, grain cement type, etc. In all of the samples studied, the change in resonant frequency as a function of excitation intensity is not measurable above approximately 10 MPa; however, harmonics are observed at larger effective pressure levels. Hysteresis in velocity and Q versus pressure vary considerably between the rocks. The effect of Q on the experiments is marked. When Q is low (<10) as for some saturated samples, relative excitations must be large in order to induce equivalent dry sample strains. Copyright 1997 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Zinszner, Bernard AU - Johnson, Paul A AU - Rasolofosaon, Patrick N J Y1 - 1997/04/10/ PY - 1997 DA - 1997 Apr 10 SP - 8105 EP - 8120 PB - American Geophysical Union, Washington, DC VL - 102 IS - B4 SN - 0148-0227, 0148-0227 KW - limestone KW - Fontainebleau Sandstone KW - Lavoux Limestone KW - experimental studies KW - hysteresis KW - pressure KW - elastic properties KW - nonlinear distortion KW - sandstone KW - mechanical properties KW - Paleogene KW - elastic constants KW - Cenozoic KW - Tertiary KW - sedimentary rocks KW - Q KW - saturation KW - Meule Sandstone KW - carbonate rocks KW - clastic rocks KW - Young's modulus KW - Oligocene KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50169689?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Influence+of+change+in+physical+state+on+elastic+nonlinear+response+in+rock%3B+significance+of+effective+pressure+and+water+saturation&rft.au=Zinszner%2C+Bernard%3BJohnson%2C+Paul+A%3BRasolofosaon%2C+Patrick+N+J&rft.aulast=Zinszner&rft.aufirst=Bernard&rft.date=1997-04-10&rft.volume=102&rft.issue=B4&rft.spage=8105&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F96JB03225 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - carbonate rocks; Cenozoic; clastic rocks; elastic constants; elastic properties; experimental studies; Fontainebleau Sandstone; hysteresis; Lavoux Limestone; limestone; mechanical properties; Meule Sandstone; nonlinear distortion; Oligocene; Paleogene; pressure; Q; sandstone; saturation; sedimentary rocks; Tertiary; Young's modulus DO - http://dx.doi.org/10.1029/96JB03225 ER - TY - JOUR T1 - Changes in volatile emissions from the Mount St. Helens stratovolcano; implications for the mobility of metals from magmas AN - 52701598; 1997-049066 JF - Abstracts with Programs - Geological Society of America AU - Shevenell, Lisa AU - Goff, Fraser AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 65 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Skamania County Washington KW - stratovolcanoes KW - oxygen KW - Mount Saint Helens KW - isotopes KW - fumaroles KW - complexing KW - halogens KW - stable isotopes KW - chloride ion KW - deuterium KW - mobility KW - geochemistry KW - chlorine KW - southern Washington KW - meteoric water KW - concentration KW - Washington KW - isotope ratios KW - O-18/O-16 KW - gases KW - Cascade Range KW - volatiles KW - D/H KW - metals KW - magmas KW - hydrogen KW - volcanoes KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52701598?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Changes+in+volatile+emissions+from+the+Mount+St.+Helens+stratovolcano%3B+implications+for+the+mobility+of+metals+from+magmas&rft.au=Shevenell%2C+Lisa%3BGoff%2C+Fraser%3BAnonymous&rft.aulast=Shevenell&rft.aufirst=Lisa&rft.date=1997-04-01&rft.volume=29&rft.issue=5&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cascade Range; chloride ion; chlorine; complexing; concentration; D/H; deuterium; fumaroles; gases; geochemistry; halogens; hydrogen; isotope ratios; isotopes; magmas; metals; meteoric water; mobility; Mount Saint Helens; O-18/O-16; oxygen; Skamania County Washington; southern Washington; stable isotopes; stratovolcanoes; United States; volatiles; volcanoes; Washington ER - TY - JOUR T1 - Simultaneous infrared/ultraviolet/lidar remote sensing of volcanic gases at White Island and Ruapehu, New Zealand AN - 52701451; 1997-048980 JF - Abstracts with Programs - Geological Society of America AU - Love, Steven P AU - Goff, Fraser AU - Cottingame, William AU - Pettit, Don AU - Werner, Cindy AU - Counce, Dale AU - Christenson, Bruce AU - Lindsay, Jan M AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 25 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 5 SN - 0016-7592, 0016-7592 KW - plumes KW - Ruapehu KW - laser methods KW - geologic hazards KW - Australasia KW - data processing KW - radar methods KW - atmosphere KW - North Island KW - volcanology KW - infrared spectra KW - gases KW - volcanic risk KW - lidar methods KW - Fourier analysis KW - White Island KW - volcanoes KW - ultraviolet spectra KW - spectra KW - geochemistry KW - New Zealand KW - remote sensing KW - 20:Applied geophysics KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52701451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Simultaneous+infrared%2Fultraviolet%2Flidar+remote+sensing+of+volcanic+gases+at+White+Island+and+Ruapehu%2C+New+Zealand&rft.au=Love%2C+Steven+P%3BGoff%2C+Fraser%3BCottingame%2C+William%3BPettit%2C+Don%3BWerner%2C+Cindy%3BCounce%2C+Dale%3BChristenson%2C+Bruce%3BLindsay%2C+Jan+M%3BAnonymous&rft.aulast=Love&rft.aufirst=Steven&rft.date=1997-04-01&rft.volume=29&rft.issue=5&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atmosphere; Australasia; data processing; Fourier analysis; gases; geochemistry; geologic hazards; infrared spectra; laser methods; lidar methods; New Zealand; North Island; plumes; radar methods; remote sensing; Ruapehu; spectra; ultraviolet spectra; volcanic risk; volcanoes; volcanology; White Island ER - TY - JOUR T1 - Morphology of a crater-filling lava lake margin, the Peninsula tuff cone, Lava Beds National Monument, Modoc County, NE California AN - 52699966; 1997-048975 JF - Abstracts with Programs - Geological Society of America AU - Lavine, A AU - Aalto, K R AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 24 EP - 25 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 5 SN - 0016-7592, 0016-7592 KW - vesicular texture KW - United States KW - Modoc County California KW - volcanic rocks KW - lava lakes KW - lava flows KW - textures KW - igneous rocks KW - flow mechanism KW - cinder cones KW - morphology KW - California KW - pyroclastics KW - volcanic features KW - craters KW - Peninsula tuff cone KW - Lava Beds National Monument KW - tuff KW - Northern California KW - 23:Geomorphology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52699966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Morphology+of+a+crater-filling+lava+lake+margin%2C+the+Peninsula+tuff+cone%2C+Lava+Beds+National+Monument%2C+Modoc+County%2C+NE+California&rft.au=Lavine%2C+A%3BAalto%2C+K+R%3BAnonymous&rft.aulast=Lavine&rft.aufirst=A&rft.date=1997-04-01&rft.volume=29&rft.issue=5&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - California; cinder cones; craters; flow mechanism; igneous rocks; Lava Beds National Monument; lava flows; lava lakes; Modoc County California; morphology; Northern California; Peninsula tuff cone; pyroclastics; textures; tuff; United States; vesicular texture; volcanic features; volcanic rocks ER - TY - JOUR T1 - Observations of (super 231) Pa/ (super 235) U disequilibrium in volcanic rocks AN - 52698595; 1997-049242 AB - We present here the first survey of ( (super 231) Pa/ (super 235) U) ratios in volcanic rocks; such measurements are made possible by new mass spectrometric techniques. The data place new constraints on the timing and extent of magma source and evolutionary processes, particularly due to the sensitivity of the (super 231) Pa- (super 235) U pair and its intermediate time scale ( (super 231) Pa t (sub 1/2) = 33 ky). ( (super 231) Pa/ (super 235) U) is found to vary widely, from 0.2 in carbonatites to 1.1-2.9 in basalts and 0.9-2.2 in arcs. Substantial Pa enrichment is nearly ubiquitous, suggestive of the relative incompatibility of Pa, qualitatively consistent with available partitioning data. The level of (super 231) Pa- (super 235) U disequilibrium typically far exceeds that of (super 230) Th- (super 238) U and is comparable to (super 226) Ra- (super 230) Th. The high ( (super 231) Pa/ (super 235) U) ratios in MORB and other basalts reflect a large degree of discrimination between two incompatible elements, posing challenges for modelling of melt generation and migration. Fundamental differences in ( (super 231) Pa/ (super 235) U) among different basaltic environments are likely related to contrasts in melting zone conditions (e.g., melting rate). Strong ( (super 231) Pa/ (super 235) U) disequilibria in continental basalts, for which ( (super 230) Th/ (super 238) U) disequilibria are small or absent, demonstrate that Pa-U fractionation is possible in both garnet and spinel mantle stability fields. In arcs, correlation of ( (super 231) Pa/ (super 235) U) and ( (super 230) Th/ (super 238) U) is consistent with U enrichment via slab-derived fluids, a process which is additional to the still dominant Pa enrichment. An important new constraint is provided by the observation that the near-equilibrium ( (super 230) Th/ (super 238) U) common to arcs and continental basalts is not typically accompanied by near-equilibrium ( (super 231) Pa/ (super 235) U), arguing against the influence of long magma history, crustal material, or equilibrium mantle sources in affecting decay-series ratios. Small sample sets from two silicic centers illustrate: (1) recent, rapid U enrichment in the magma chamber (El Chichon); and (2) the failure of substantial magma H (sub 2) O-CO (sub 2) degassing to effect U-Th-Pa fractionation (Mono Craters). JF - Earth and Planetary Science Letters AU - Pickett, David A AU - Murrell, Michael T Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 259 EP - 271 PB - Elsevier, Amsterdam VL - 148 IS - 1-2 SN - 0012-821X, 0012-821X KW - volcanic rocks KW - Quaternary KW - isotopes KW - igneous rocks KW - Pa/U KW - Holocene KW - uranium disequilibrium KW - Cenozoic KW - radioactive isotopes KW - island arcs KW - dates KW - metals KW - magmas KW - basalts KW - protactinium KW - absolute age KW - uranium KW - Pa-231 KW - ocean-island basalts KW - geochemistry KW - actinides KW - U-235 KW - 03:Geochronology KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52698595?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Observations+of+%28super+231%29+Pa%2F+%28super+235%29+U+disequilibrium+in+volcanic+rocks&rft.au=Pickett%2C+David+A%3BMurrell%2C+Michael+T&rft.aulast=Pickett&rft.aufirst=David&rft.date=1997-04-01&rft.volume=148&rft.issue=1-2&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2FS0012-821X%2897%2900037-X L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 58 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - absolute age; actinides; basalts; Cenozoic; dates; geochemistry; Holocene; igneous rocks; island arcs; isotopes; magmas; metals; ocean-island basalts; Pa-231; Pa/U; protactinium; Quaternary; radioactive isotopes; U-235; uranium; uranium disequilibrium; volcanic rocks DO - http://dx.doi.org/10.1016/S0012-821X(97)00037-X ER - TY - JOUR T1 - Application of the CHEMIN XRD/XRF instrument in analyzing diagnostic mineralogies; quantitative XRD analysis of aragonite and basalt AN - 52693767; 1997-057378 JF - LPI Contribution AU - Bish, D AU - Vaniman, D AU - Sarrazin, P AU - Blake, D AU - Chipera, S J AU - Collins, S A AU - Elliott, T A2 - Clifford, Stephen M. A2 - Treiman, Allan H. A2 - Newsom, Horton E. A2 - Farmer, Jack D. Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 8 EP - 9 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - volcanic rocks KW - aragonite KW - X-ray fluorescence KW - X-ray diffraction data KW - igneous rocks KW - CHEMIN KW - cosmochemistry KW - Rietveld refinement KW - X-ray diffraction analysis KW - mineral composition KW - basalts KW - X-ray analysis KW - applications KW - chemical composition KW - carbonates KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52693767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Application+of+the+CHEMIN+XRD%2FXRF+instrument+in+analyzing+diagnostic+mineralogies%3B+quantitative+XRD+analysis+of+aragonite+and+basalt&rft.au=Bish%2C+D%3BVaniman%2C+D%3BSarrazin%2C+P%3BBlake%2C+D%3BChipera%2C+S+J%3BCollins%2C+S+A%3BElliott%2C+T&rft.aulast=Bish&rft.aufirst=D&rft.date=1997-04-01&rft.volume=&rft.issue=&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Conference on early Mars; geologic and hydrologic evolution, physical and chemical environments, and the implications for life N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - applications; aragonite; basalts; carbonates; chemical composition; CHEMIN; cosmochemistry; igneous rocks; instruments; mineral composition; remote sensing; Rietveld refinement; volcanic rocks; X-ray analysis; X-ray diffraction analysis; X-ray diffraction data; X-ray fluorescence ER - TY - JOUR T1 - Magmatic tritium AN - 52693398; 1997-048931 JF - Abstracts with Programs - Geological Society of America AU - Goff, Fraser AU - McMurtry, Gary M AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 16 EP - 17 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 5 SN - 0016-7592, 0016-7592 KW - meteoric water KW - isotopes KW - global KW - fumaroles KW - fluid phase KW - tritium KW - thermal waters KW - radioactive isotopes KW - magmas KW - hydrogen KW - volcanoes KW - geochemistry KW - 21:Hydrogeology KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52693398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Magmatic+tritium&rft.au=Goff%2C+Fraser%3BMcMurtry%2C+Gary+M%3BAnonymous&rft.aulast=Goff&rft.aufirst=Fraser&rft.date=1997-04-01&rft.volume=29&rft.issue=5&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - CO N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - fluid phase; fumaroles; geochemistry; global; hydrogen; isotopes; magmas; meteoric water; radioactive isotopes; thermal waters; tritium; volcanoes ER - TY - JOUR T1 - Scientific issues addressed by the Mars Surveyor 2001 gamma-ray/neutron spectrometer (GRS/NS) AN - 52693211; 1997-057381 JF - LPI Contribution AU - Boynton, W V AU - Feldman, W C AU - Squyres, S W AU - Trombka, J I AU - Arnold, J R AU - Englert, P A J AU - Metzger, A E AU - Reedy, R C AU - Waenke, H AU - Bailey, S H AU - Brueckner, J AU - Evans, L G AU - McSween, H Y AU - Starr, R A2 - Clifford, Stephen M. A2 - Treiman, Allan H. A2 - Newsom, Horton E. A2 - Farmer, Jack D. Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 12 EP - 13 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - gamma-ray methods KW - neutron methods KW - Mars KW - weathering KW - polar caps KW - terrestrial planets KW - planets KW - volcanism KW - Mars Global Surveyor Program KW - chemical composition KW - spectroscopy KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52693211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Scientific+issues+addressed+by+the+Mars+Surveyor+2001+gamma-ray%2Fneutron+spectrometer+%28GRS%2FNS%29&rft.au=Boynton%2C+W+V%3BFeldman%2C+W+C%3BSquyres%2C+S+W%3BTrombka%2C+J+I%3BArnold%2C+J+R%3BEnglert%2C+P+A+J%3BMetzger%2C+A+E%3BReedy%2C+R+C%3BWaenke%2C+H%3BBailey%2C+S+H%3BBrueckner%2C+J%3BEvans%2C+L+G%3BMcSween%2C+H+Y%3BStarr%2C+R&rft.aulast=Boynton&rft.aufirst=W&rft.date=1997-04-01&rft.volume=&rft.issue=&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Conference on early Mars; geologic and hydrologic evolution, physical and chemical environments, and the implications for life N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - chemical composition; gamma-ray methods; instruments; Mars; Mars Global Surveyor Program; neutron methods; planets; polar caps; remote sensing; spectroscopy; terrestrial planets; volcanism; weathering ER - TY - JOUR T1 - Equilibrium modeling of clinoptilolite-analcime equilibria at Yucca Mountain, Nevada, USA AN - 52687173; 1997-065215 AB - Yucca Mountain, Nevada, is being investigated to determine its suitability to host a potential high-level radioactive waste respository. An important reason for its choice as a potential repository site was the presence of thick zeolite-rich horizons in the altered volcanic tuffs that compose the mountain. Clinoptilolite is the most abundant zeolite at Yucca Mountain and may be important in radionuclide retardation and in determining hydrologic properties. Therefore, it is necessary to understand the geo-chemical conditions affecting its long-term stability. For example, it has been suggested that long-term, repository-induced heating of the rocks at Yucca Mountain may lead to the transformation of clinoptilolite to analcime, thereby significantly affecting the hydrologic properties and retardation capabilities of the rock. Thermodynamic modeling of clinoptilolite-analcime equilibria was conducted with the program GeO-Calc PTA-SYSTEM using estimated thermodynamic data for measured chemical compositions of clinoptilolite and analcime at Yucca Mountain. Log[aK (super +) ) (super 2) /aCa (super 2+) ] versus log[(aNa (super +) ) (super 2) /aCa (super 2+) ] diagrams were calculated to model the conditions under which clinoptilolite may transform to analcime. Temperature, relative cation abundances and silica activity are all important factors in determining clinoptilolite-analcime equilibria. Increased Na (super +) concentrations in either clinoptilolite or the fluid phase, increased clinoptilolite K (super +) concentration, increased temperature and decreased aqueous silica activity all stabilize analcime relative to clinoptilolite, assuming present-day Yucca Mountain water compositions. However, increased Ca (super 2+) concentrations in either clinoptilolite or the fluid phase, increased aqueous K (super +) concentration and increased Al:Si ratios in clinoptilolite (heulandite) all stabilize clinoptilolite with respect to analcime. Assuming well J-13 water as the analog chemistry for Yucca Mountain water, clinoptilolite should remain stable with respect to analcime if temperatures in the clinoptilolite-bearing horizons do not significantly exceed 100 degrees C. Even if temperatures rise significantly (for example, to 150 degrees C), not all clinoptilolite should alter to analcime. Perhaps more importantly, thermodynamic modeling suggests that some Yucca Mountain clinoptilolites, particularly those rich in Ca and Al, will remain stable at elevated temperatures, even with an aqueous silica activity at quartz saturation. JF - Clays and Clay Minerals AU - Chipera, Steve J AU - Bish, David L Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 226 EP - 239 PB - Clay Minerals Society, Clarkson, NY VL - 45 IS - 2 SN - 0009-8604, 0009-8604 KW - United States KW - silicates KW - clay mineralogy KW - data processing KW - waste disposal sites KW - stability KW - fluid phase KW - Nevada Test Site KW - chemical reactions KW - areal studies KW - phase equilibria KW - digital simulation KW - clinoptilolite KW - zeolite group KW - framework silicates KW - thermodynamic properties KW - chemical composition KW - Yucca Mountain KW - geochemistry KW - Nevada KW - Nye County Nevada KW - solid phase KW - models KW - analcime KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52687173?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Equilibrium+modeling+of+clinoptilolite-analcime+equilibria+at+Yucca+Mountain%2C+Nevada%2C+USA&rft.au=Chipera%2C+Steve+J%3BBish%2C+David+L&rft.aulast=Chipera&rft.aufirst=Steve&rft.date=1997-04-01&rft.volume=45&rft.issue=2&rft.spage=226&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 68 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - analcime; areal studies; chemical composition; chemical reactions; clay mineralogy; clinoptilolite; data processing; digital simulation; fluid phase; framework silicates; geochemistry; models; Nevada; Nevada Test Site; Nye County Nevada; phase equilibria; silicates; solid phase; stability; thermodynamic properties; United States; waste disposal sites; Yucca Mountain; zeolite group ER - TY - JOUR T1 - Daedalus vs. ground truth data; effects on surface water modeling AN - 52634492; 1998-010878 JF - Eos, Transactions, American Geophysical Union AU - Becker, Naomi M AU - Irvine, John M AU - Allyn, Kathleen AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 157 PB - American Geophysical Union, Washington, DC VL - 78 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - hydrology KW - time series analysis KW - pollutants KW - surface water KW - statistical analysis KW - Daedalus imagery KW - watersheds KW - pollution KW - satellite methods KW - multispectral analysis KW - models KW - ground truth KW - transport KW - metals KW - KINEROS KW - hydraulic conductivity KW - heavy metals KW - SPOT KW - remote sensing KW - 21:Hydrogeology KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52634492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Daedalus+vs.+ground+truth+data%3B+effects+on+surface+water+modeling&rft.au=Becker%2C+Naomi+M%3BIrvine%2C+John+M%3BAllyn%2C+Kathleen%3BAnonymous&rft.aulast=Becker&rft.aufirst=Naomi&rft.date=1997-04-01&rft.volume=78&rft.issue=17%2C+Suppl.&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Daedalus imagery; ground truth; heavy metals; hydraulic conductivity; hydrology; KINEROS; metals; models; multispectral analysis; pollutants; pollution; remote sensing; satellite methods; soils; SPOT; statistical analysis; surface water; time series analysis; transport; watersheds ER - TY - JOUR T1 - CO (sub 2) degassing from point-source locations in The Geysers-Clear Lake geothermal region of Northern California AN - 52597426; 1998-038557 JF - Eos, Transactions, American Geophysical Union AU - Bergfeld, Deborah AU - Janik, C J AU - Goff, Fraser AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 328 PB - American Geophysical Union, Washington, DC VL - 78 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - isotopes KW - Clear Lake KW - fumaroles KW - aliphatic hydrocarbons KW - stable isotopes KW - ground water KW - carbon dioxide KW - California KW - geothermal systems KW - carbon KW - springs KW - Sonoma County California KW - Northern California KW - geochemistry KW - degassing KW - methane KW - isotope ratios KW - C-13/C-12 KW - atmosphere KW - alkanes KW - thermal waters KW - organic compounds KW - The Geysers KW - hydrocarbons KW - Lake County California KW - thermal effects KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52597426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=CO+%28sub+2%29+degassing+from+point-source+locations+in+The+Geysers-Clear+Lake+geothermal+region+of+Northern+California&rft.au=Bergfeld%2C+Deborah%3BJanik%2C+C+J%3BGoff%2C+Fraser%3BAnonymous&rft.aulast=Bergfeld&rft.aufirst=Deborah&rft.date=1997-04-01&rft.volume=78&rft.issue=17%2C+Suppl.&rft.spage=328&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1997 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; C-13/C-12; California; carbon; carbon dioxide; Clear Lake; degassing; fumaroles; geochemistry; geothermal systems; ground water; hydrocarbons; isotope ratios; isotopes; Lake County California; methane; Northern California; organic compounds; Sonoma County California; springs; stable isotopes; The Geysers; thermal effects; thermal waters; United States ER - TY - JOUR T1 - Evaluation of infrasonic detection/location capability for the CTBT/IMS AN - 52596275; 1998-038616 JF - Eos, Transactions, American Geophysical Union AU - Armstrong, W T AU - Whitaker, R W AU - Olson, J V AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 339 PB - American Geophysical Union, Washington, DC VL - 78 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - monitoring KW - explosions KW - global KW - statistical analysis KW - international cooperation KW - spectral analysis KW - signals KW - International Monitoring System KW - detection KW - sensitivity analysis KW - probability KW - algorithms KW - seismic networks KW - nuclear explosions KW - arrays KW - acoustical waves KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52596275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Evaluation+of+infrasonic+detection%2Flocation+capability+for+the+CTBT%2FIMS&rft.au=Armstrong%2C+W+T%3BWhitaker%2C+R+W%3BOlson%2C+J+V%3BAnonymous&rft.aulast=Armstrong&rft.aufirst=W&rft.date=1997-04-01&rft.volume=78&rft.issue=17%2C+Suppl.&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical waves; algorithms; arrays; Comprehensive Test Ban Treaty; detection; explosions; global; international cooperation; International Monitoring System; monitoring; nuclear explosions; probability; seismic networks; sensitivity analysis; signals; spectral analysis; statistical analysis ER - TY - JOUR T1 - Time-dependent dispersion of nonergodic plumes in two-dimensional heterogeneous aquifers AN - 52535960; 1999-001704 JF - Journal of Hydrologic Engineering AU - Zhang, You-Kuan AU - Zhang, Dongxiao Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 91 EP - 94 PB - American Society of Civil Engineers, New York, NY VL - 2 IS - 2 SN - 1084-0699, 1084-0699 KW - isotropic materials KW - heterogeneous materials KW - chemical dispersion KW - Monte Carlo analysis KW - statistical analysis KW - hydraulic conductivity KW - simulation KW - two-dimensional models KW - ground water KW - aquifers KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52535960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrologic+Engineering&rft.atitle=Time-dependent+dispersion+of+nonergodic+plumes+in+two-dimensional+heterogeneous+aquifers&rft.au=Zhang%2C+You-Kuan%3BZhang%2C+Dongxiao&rft.aulast=Zhang&rft.aufirst=You-Kuan&rft.date=1997-04-01&rft.volume=2&rft.issue=2&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrologic+Engineering&rft.issn=10840699&rft_id=info:doi/ L2 - http://scitation.aip.org/heo/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 8 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; chemical dispersion; ground water; heterogeneous materials; hydraulic conductivity; isotropic materials; Monte Carlo analysis; simulation; statistical analysis; two-dimensional models ER - TY - JOUR T1 - An evaluation of generalized likelihood ratio outlier detection to identification of seismic events in western China AN - 51042175; 1998-043368 JF - Seismological Research Letters AU - Taylor, S R AU - Hartse, H E AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 294 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 68 IS - 2 SN - 0895-0695, 0895-0695 KW - monitoring KW - Far East KW - discriminant analysis KW - explosions KW - statistical analysis KW - seismic sources KW - International Monitoring System KW - detection KW - identification KW - policy KW - western China KW - nuclear explosions KW - Asia KW - earthquakes KW - China KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51042175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=An+evaluation+of+generalized+likelihood+ratio+outlier+detection+to+identification+of+seismic+events+in+western+China&rft.au=Taylor%2C+S+R%3BHartse%2C+H+E%3BAnonymous&rft.aulast=Taylor&rft.aufirst=S&rft.date=1997-04-01&rft.volume=68&rft.issue=2&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America, 92nd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Asia; China; Comprehensive Test Ban Treaty; detection; discriminant analysis; earthquakes; explosions; Far East; identification; International Monitoring System; monitoring; nuclear explosions; policy; seismic sources; statistical analysis; western China ER - TY - JOUR T1 - Seismic and infrasonic arrays at the Pinedale Seismic Research Facility (PSRF), Wyoming; synergy of infrasonic and seismic signals from mining explosions AN - 51034004; 1998-043486 JF - Seismological Research Letters AU - Hsu, V AU - Stump, B W AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 320 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 68 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - Pinedale Wyoming KW - mining KW - monitoring KW - explosions KW - waveforms KW - seismic sources KW - Wyoming KW - Sublette County Wyoming KW - detection KW - seismicity KW - blasting KW - mining geology KW - identification KW - Pinedale Seismic Research Facility KW - policy KW - seismic networks KW - Powder River basin KW - arrays KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51034004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Seismic+and+infrasonic+arrays+at+the+Pinedale+Seismic+Research+Facility+%28PSRF%29%2C+Wyoming%3B+synergy+of+infrasonic+and+seismic+signals+from+mining+explosions&rft.au=Hsu%2C+V%3BStump%2C+B+W%3BAnonymous&rft.aulast=Hsu&rft.aufirst=V&rft.date=1997-04-01&rft.volume=68&rft.issue=2&rft.spage=320&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America, 92nd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - arrays; blasting; Comprehensive Test Ban Treaty; detection; explosions; identification; mining; mining geology; monitoring; Pinedale Seismic Research Facility; Pinedale Wyoming; policy; Powder River basin; seismic networks; seismic sources; seismicity; Sublette County Wyoming; United States; waveforms; Wyoming ER - TY - JOUR T1 - Heterogeneous structure around the Jemez volcanic field as inferred from envelope inversion of active experiment seismic data AN - 50319577; 1998-043481 JF - Seismological Research Letters AU - Nishimura, T AU - Fehler, M AU - Baldridge, W S AU - Roberts, P AU - Steck, Lee AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 319 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 68 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - Jemez volcanic field KW - geophysical surveys KW - Sandoval County New Mexico KW - mantle KW - Green function KW - elastic waves KW - New Mexico KW - layered materials KW - Rio Grande Rift KW - volcanic features KW - seismicity KW - Valles Caldera KW - Jemez Mountains KW - heterogeneity KW - upper mantle KW - North America KW - Colorado Plateau KW - geophysical methods KW - Mohorovicic discontinuity KW - depth KW - seismic methods KW - volcanic fields KW - calderas KW - velocity structure KW - surveys KW - seismic waves KW - wave dispersion KW - crust KW - 19:Seismology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50319577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Heterogeneous+structure+around+the+Jemez+volcanic+field+as+inferred+from+envelope+inversion+of+active+experiment+seismic+data&rft.au=Nishimura%2C+T%3BFehler%2C+M%3BBaldridge%2C+W+S%3BRoberts%2C+P%3BSteck%2C+Lee%3BAnonymous&rft.aulast=Nishimura&rft.aufirst=T&rft.date=1997-04-01&rft.volume=68&rft.issue=2&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America, 92nd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - calderas; Colorado Plateau; crust; depth; elastic waves; geophysical methods; geophysical surveys; Green function; heterogeneity; Jemez Mountains; Jemez volcanic field; layered materials; mantle; Mohorovicic discontinuity; New Mexico; North America; Rio Grande Rift; Sandoval County New Mexico; seismic methods; seismic waves; seismicity; surveys; United States; upper mantle; Valles Caldera; velocity structure; volcanic features; volcanic fields; wave dispersion ER - TY - JOUR T1 - Effects of blow fly (Protocalliphora spatulata): Diptera: Calliphoridae) parasitism on the growth of nestling savannah sparrows in Alaska AN - 16467655; 4323619 AB - We investigated the effect of blow fly larvae (Protocalliphora spatulata) on nestling savannah sparrows (Passerculus sandwichensis) in Alaska subject to biennially fluctuating prey abundance. Grasshopper populations in some regions of interior Alaska can show a strong biennial periodicity. Growth of nestling savannah sparrows, numbers of blow fly larvae in nests and on nestlings, and grasshopper populations were monitored during four breeding seasons (1990-1993) on the Delta Agriculture Project site near Delta Junction, Alaska. Growth parameters for parasitized and nonparasitized nestlings were compared within and between years. There were no significant differences in growth parameters between parasitized and nonparasitized nestlings between any years. There were also no differences in growth parameters within years, except for tarsus length in 1991 and nestling mass in 1993 (low grasshopper years); in 1993, parasitized nestlings were heavier and the sample size was small. Additionally, there were no differences in fledging success within years. Although parasitism combined with other factors (e.g., food limitation) may have an impact on avian reproduction, our data do not support this. JF - Canadian Journal of Zoology/Revue Canadien de Zoologie AU - Miller, C K AU - Fair, J M AD - EES-15, Environmental Science Group, MS J495, Los Alamos National Laboratory, Los Alamos, NM 87545, USA, jfair@ecology.umsl.edu Y1 - 1997/04// PY - 1997 DA - Apr 1997 SP - 641 EP - 644 VL - 75 IS - 4 SN - 0008-4301, 0008-4301 KW - Blow flies KW - Bluebottles KW - Cluster flies KW - Greenbottles KW - Savannah sparrow KW - USA, Alaska KW - Entomology Abstracts; Ecology Abstracts KW - Z 05202:Parasitism: non-entomophagous KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16467655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Zoology%2FRevue+Canadien+de+Zoologie&rft.atitle=Effects+of+blow+fly+%28Protocalliphora+spatulata%29%3A+Diptera%3A+Calliphoridae%29+parasitism+on+the+growth+of+nestling+savannah+sparrows+in+Alaska&rft.au=Miller%2C+C+K%3BFair%2C+J+M&rft.aulast=Miller&rft.aufirst=C&rft.date=1997-04-01&rft.volume=75&rft.issue=4&rft.spage=641&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Zoology%2FRevue+Canadien+de+Zoologie&rft.issn=00084301&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Environmental and human monitoring of Americium-241 utilizing extraction chromatography and alpha-spectrometry. AN - 78878646; 9068269 AB - Recent developments in extraction chromatography have simplified the separation of americium from complex matrices in preparation for alpha-spectroscopy relative to traditional methods. Here we present results of procedures developed/adapted for water, air, and bioassay samples with less than 1 g of inorganic residue. Prior analytical methods required the use of a complex, multistage procedure for separation of americium from these matrices. The newer, simplified procedure requires only a single 2 mL extraction chromatographic separation for isolation of Am and lanthanides from other components of the sample. This method has been implemented on an extensive variety of "real" environmental and bioassay samples from the Los Alamos area, and consistently reliable and accurate results with appropriate detection limits have been obtained. The new method increases analytical throughput by a factor of approximately 2 and decreases environmental hazards from acid and mixed-waste generation relative to the prior technique. Analytical accuracy, reproducibility, and reliability are also significantly improved over the more complex and laborious method used previously. JF - Analytical chemistry AU - Goldstein, S J AU - Hensley, C A AU - Armenta, C E AU - Peters, R J AD - Inorganic Trace Analysis, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1997/03/01/ PY - 1997 DA - 1997 Mar 01 SP - 809 EP - 812 VL - 69 IS - 5 SN - 0003-2700, 0003-2700 KW - Metals, Rare Earth KW - 0 KW - Americium KW - VW92PHU2UY KW - Index Medicus KW - Sensitivity and Specificity KW - Humans KW - Spectrophotometry KW - Chromatography -- methods KW - Americium -- analysis KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78878646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+chemistry&rft.atitle=Environmental+and+human+monitoring+of+Americium-241+utilizing+extraction+chromatography+and+alpha-spectrometry.&rft.au=Goldstein%2C+S+J%3BHensley%2C+C+A%3BArmenta%2C+C+E%3BPeters%2C+R+J&rft.aulast=Goldstein&rft.aufirst=S&rft.date=1997-03-01&rft.volume=69&rft.issue=5&rft.spage=809&rft.isbn=&rft.btitle=&rft.title=Analytical+chemistry&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-23 N1 - Date created - 1997-06-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Feasibility of radar detection of a Europan ocean from an orbiting spacecraft AN - 52690805; 1997-055232 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chyba, C F AU - Ostro, S J AU - Edwards, B C AU - Black, David Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 229 EP - 230 PB - Lunar and Planetary Science Conference, Houston, TX VL - 28, Part 1 KW - surface properties KW - icy satellites KW - Europa Satellite KW - oceans KW - Jupiter KW - radar methods KW - Galilean satellites KW - feasibility studies KW - giant planets KW - planets KW - planetology KW - outer planets KW - orbital observations KW - satellites KW - ice-penetrating radar KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52690805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Feasibility+of+radar+detection+of+a+Europan+ocean+from+an+orbiting+spacecraft&rft.au=Chyba%2C+C+F%3BOstro%2C+S+J%3BEdwards%2C+B+C%3BBlack%2C+David&rft.aulast=Chyba&rft.aufirst=C&rft.date=1997-03-01&rft.volume=28%2C+Part+1&rft.issue=&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 28th Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 1997-01-01 N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Europa Satellite; feasibility studies; Galilean satellites; giant planets; ice-penetrating radar; icy satellites; Jupiter; oceans; orbital observations; outer planets; planetology; planets; radar methods; remote sensing; satellites; surface properties ER - TY - JOUR T1 - Revised estimates for SCR-produced (super 22) Na in lunar rock 74275 using new cross section measurements AN - 52688583; 1997-061083 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sisterson, J M AU - Reedy, R C AU - Black, David AU - Blanchard, Douglas Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 1325 EP - 1326 PB - Lunar and Planetary Science Conference, Houston, TX VL - 28, Part 3 KW - Moon KW - isotopes KW - alkali metals KW - cosmogenic elements KW - cosmochemistry KW - sodium KW - new methods KW - lunar samples KW - radioactive isotopes KW - metals KW - Na-22 KW - lunar sample 74275 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52688583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Revised+estimates+for+SCR-produced+%28super+22%29+Na+in+lunar+rock+74275+using+new+cross+section+measurements&rft.au=Sisterson%2C+J+M%3BReedy%2C+R+C%3BBlack%2C+David%3BBlanchard%2C+Douglas&rft.aulast=Sisterson&rft.aufirst=J&rft.date=1997-03-01&rft.volume=28%2C+Part+3&rft.issue=&rft.spage=1325&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 28th Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; cosmochemistry; cosmogenic elements; isotopes; lunar sample 74275; lunar samples; metals; Moon; Na-22; new methods; radioactive isotopes; sodium ER - TY - JOUR T1 - (super 10) Be and (super 26) Al production in lunar rock 68815; revised production rates using new cross section measurements AN - 52688424; 1997-061084 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sisterson, J M AU - Kim, K AU - Caffee, M W AU - Reedy, R C AU - Black, David AU - Blanchard, Douglas Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 1327 EP - 1328 PB - Lunar and Planetary Science Conference, Houston, TX VL - 28, Part 3 KW - alkaline earth metals KW - Be-10 KW - Moon KW - isotopes KW - cosmogenic elements KW - rates KW - cosmochemistry KW - Al-26 KW - lunar samples KW - radioactive isotopes KW - metals KW - aluminum KW - beryllium KW - lunar sample 68815 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52688424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=%28super+10%29+Be+and+%28super+26%29+Al+production+in+lunar+rock+68815%3B+revised+production+rates+using+new+cross+section+measurements&rft.au=Sisterson%2C+J+M%3BKim%2C+K%3BCaffee%2C+M+W%3BReedy%2C+R+C%3BBlack%2C+David%3BBlanchard%2C+Douglas&rft.aulast=Sisterson&rft.aufirst=J&rft.date=1997-03-01&rft.volume=28%2C+Part+3&rft.issue=&rft.spage=1327&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 28th Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Be-10; beryllium; cosmochemistry; cosmogenic elements; isotopes; lunar sample 68815; lunar samples; metals; Moon; radioactive isotopes; rates ER - TY - JOUR T1 - Revised (super 36) Cl production rates in lunar rock 64455 using new cross section measurements AN - 52688184; 1997-061085 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sisterson, J M AU - Nishiizumi, K AU - Caffee, M W AU - Imamura, M AU - Reedy, R C AU - Black, David AU - Blanchard, Douglas Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 1329 EP - 1330 PB - Lunar and Planetary Science Conference, Houston, TX VL - 28, Part 3 KW - chlorine KW - lunar samples KW - radioactive isotopes KW - Moon KW - isotopes KW - Cl-36 KW - halogens KW - lunar sample 64455 KW - cosmogenic elements KW - rates KW - cosmochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52688184?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Revised+%28super+36%29+Cl+production+rates+in+lunar+rock+64455+using+new+cross+section+measurements&rft.au=Sisterson%2C+J+M%3BNishiizumi%2C+K%3BCaffee%2C+M+W%3BImamura%2C+M%3BReedy%2C+R+C%3BBlack%2C+David%3BBlanchard%2C+Douglas&rft.aulast=Sisterson&rft.aufirst=J&rft.date=1997-03-01&rft.volume=28%2C+Part+3&rft.issue=&rft.spage=1329&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 28th Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chlorine; Cl-36; cosmochemistry; cosmogenic elements; halogens; isotopes; lunar sample 64455; lunar samples; Moon; radioactive isotopes; rates ER - TY - JOUR T1 - Production of carbon-14 in Martian soil nitrogen AN - 50329480; 1997-059662 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Masarik, J AU - Reedy, R C AU - Black, David AU - Blanchard, Douglas Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 881 EP - 882 PB - Lunar and Planetary Science Conference, Houston, TX VL - 28, Part 2 KW - terrestrial planets KW - soils KW - planets KW - radioactive isotopes KW - isotopes KW - carbon KW - atmosphere KW - Mars KW - cosmochemistry KW - C-14 KW - nitrogen KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50329480?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Production+of+carbon-14+in+Martian+soil+nitrogen&rft.au=Masarik%2C+J%3BReedy%2C+R+C%3BBlack%2C+David%3BBlanchard%2C+Douglas&rft.aulast=Masarik&rft.aufirst=J&rft.date=1997-03-01&rft.volume=28%2C+Part+2&rft.issue=&rft.spage=881&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 28th Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2013-09-20 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; C-14; carbon; cosmochemistry; isotopes; Mars; nitrogen; planets; radioactive isotopes; soils; terrestrial planets ER - TY - JOUR T1 - Assessing conformance to safety goals using nonparametric empirical Bayes methods: A nuclear reactor application AN - 16505979; 4399740 AB - Nonparametric empirical Bayes methods are used to develop decision criteria for use in deciding whether the risk of a given facility is compatible with a corresponding specified quantitative safety goal. The criteria utilize the uncertain results of a probabilistic risk assessment (PRA) and are derived from an empirical Bayes point of view in which the results from a set of similar facilities are used to estimate the population variability curve (PVC) for the parameter of interest. The PVC is estimated nonparametrically in the sense that the distributional family to which the PVC belongs is completely unknown and unspecified. For the assumed model, the method guarantees that all facilities ultimately accepted as being compatible with the goal have a prespecified exact assurance probability that the goal is not exceeded. The method also accounts for two possible biases in the PRA results. Criteria are developed for use in assessing the compatibility of nuclear power plant PRA-produced severe core damage frequency estimates with a corresponding subsidiary objective. JF - Nuclear Safety AU - Martz, H F AU - Johnson, J W AD - Los Alamos National Laboratory, Los Alamos, NM, USA Y1 - 1997/03// PY - 1997 DA - Mar 1997 SP - 1 EP - 10 VL - 38 IS - 1 SN - 0029-5604, 0029-5604 KW - Health & Safety Science Abstracts KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16505979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nuclear+Safety&rft.atitle=Assessing+conformance+to+safety+goals+using+nonparametric+empirical+Bayes+methods%3A+A+nuclear+reactor+application&rft.au=Martz%2C+H+F%3BJohnson%2C+J+W&rft.aulast=Martz&rft.aufirst=H&rft.date=1997-03-01&rft.volume=38&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Nuclear+Safety&rft.issn=00295604&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Effects of benzene on splenic, thymic, and femoral lymphocytes in mice AN - 15957647; 4064647 AB - Chronic exposure to high concentrations of benzene, primarily by inhalation, can affect the function of the human immune system. Limited data are available on the immunotoxic effects of low concentrations of benzene. This study evaluated the effects of 1, 5, 10, 100, and 200 ppm benzene on lymphocytes in mice exposed by inhalation for up to 8 weeks. Exposure to 100 or 200 ppm benzene induced rapid and persistent reductions in femoral B-, splenic T- and B-, and thymic T-lymphocytes. The percentage of femoral B-lymphocytes and thymic T-lymphocytes in apoptosis was increased 6- to 15-fold by 200 ppm benzene compared to controls. Replication of femoral B-lymphocytes was increased during the exposure period in the bone marrow as a compensation for the lymphocyte loss induced by 100 and 200 ppm benzene. Exposure of mice to 10 ppm benzene or less did not have a statistically significant effect on numbers or replication of the lymphocyte populations evaluated. A reduced number of splenic B-lymphocytes after 2 weeks of exposure to benzene appeared to be the most sensitive end point and time point for evaluating benzene cytotoxicity in this study. JF - Toxicology AU - Farris, G M AU - Robinson, S N AU - Wong, BA AU - Wong, V A AU - Hahn, W P AU - Shah, R AD - Los Alamos National Laboratory, MS M888, Los Alamos, NM 87545, USA Y1 - 1997/03// PY - 1997 DA - Mar 1997 SP - 137 EP - 148 VL - 118 IS - 2-3 SN - 0300-483X, 0300-483X KW - mice KW - benzene KW - Toxicology Abstracts KW - lymphocytes KW - spleen KW - thymus KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15957647?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Effects+of+benzene+on+splenic%2C+thymic%2C+and+femoral+lymphocytes+in+mice&rft.au=Farris%2C+G+M%3BRobinson%2C+S+N%3BWong%2C+BA%3BWong%2C+V+A%3BHahn%2C+W+P%3BShah%2C+R&rft.aulast=Farris&rft.aufirst=G&rft.date=1997-03-01&rft.volume=118&rft.issue=2-3&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - spleen; thymus; lymphocytes ER - TY - JOUR T1 - Geochemical zoning, mingling, eruptive dynamics and depositional processes; the Campanian Ignimbrite, Campi Flegrei caldera, Italy AN - 52742798; 1997-026232 AB - The Campanian Ignimbrite (CI) is a large-volume trachytic tuff erupted at 37 ka from the Campi Flegrei and composed of a fallout deposit overlain by ignimbrite. The ignimbrite was spread over an area of about 30,000 km (super 2) including the Campanian Plain and the Apennine Mountains, with ridges over 1000 m a.s.l. The pumice fragments of the CI range in composition from trachyte to phonolitic-trachyte (DI=75-90). They do not show any systematic compositional variation with stratigraphic height, but the analyzed sections can be divided into three groups on the basis of chemical composition of pumices. Least-evolved pumices (DI=75-83) occur in the ignimbrite in the central sector of the Campanian Plain up to 30 km from the vent, while the most-differentiated pumices (DI=88-90) characterize the cogenetic fallout deposit and the ignimbrite in the western sector of the Campanian Plain, on the Tyrrhenian scarp of the Apennines between Caserta and Mt. Maggiore, on Roccamonfina volcano, and on the Sorrento Peninsula, up to 50 km from the source. Pumice fragments of intermediate composition (DI=84-87) occur in the ignimbrite on the Apennine Mountains and Roccamonfina volcano, up to 65 km from the vent. In one exposure at Mondragone, at the base of a calcareous ridge, an ignimbrite with pumices of most-evolved composition is overlain by an ignimbrite with pumices of intermediate composition. The observed compositional variation between most- and least-evolved ignimbrite was generated in part by crystal-liquid fractionation, although other magmatic processes such as syn-eruptive mingling between most- and least-evolved magmas accounts for the mineralogical disequilibria and for the bimodality of the glass compositions in the intermediate-composition rocks. Pumice Sr-isotope ratios are positively correlated with degree of differentiation. Feldspar crystals separated from pumices of different compositions have a homogeneous Sr-isotope composition similar to that of the least-evolved pumices. Interaction between fluids and strongly fractionated Sr-poor less-dense magma can account for these isotopic features. Geochemical, mineralogic, stratigraphic and volcanologic data, together with the stratigraphic relations between most-, intermediate- and least-evolved ignimbrite as detected at Mondragone and from bore-hole drillings suggest that: (1) the CI magmatic system was composed of two distinct magma layers -- the upper layer was more differentiated and homogeneous in composition, while the deeper was less evolved and slightly zoned; and (2) the CI was mostly emplaced in three main pulses of pyroclastic flows that tapped the chamber at variable levels and with distinct withdrawal dynamics. The eruption began with emission of the most differentiated magma, which gave rise to the fallout deposit. It continued with generation of expanded, turbulent pyroclastic flows that reached the Sorrento Peninsula in the southeast and Roccamonfina volcano in the northwest. These flows, whose thickness was greater than the overtopped relief, were able to travel over the water of the bay of Naples. Subsequently an intermediate-composition magma resulting from mingling of different portions of the magma chamber generated similar flows that spread radially and traveled not less than 65 km from the vent. During the last pulse the least-evolved magma was tapped and generated flows that spread within the Campanian Plain. Variation in eruptive dynamics and composition of magma during the course of the eruption likely reflected variations of both geometry of vent and plumbing system, and efficiency of water/magma interaction, which in turns affected the dynamics of the magma chamber and the withdrawal mechanism, and resulted from the dynamics of the caldera collapse. JF - Journal of Volcanology and Geothermal Research AU - Civetta, L AU - Orsi, G AU - Pappalardo, L AU - Fisher, R V AU - Heiken, G AU - Ort, M Y1 - 1997/02// PY - 1997 DA - February 1997 SP - 183 EP - 219 PB - Elsevier, Amsterdam VL - 75 IS - 3-4 SN - 0377-0273, 0377-0273 KW - silicates KW - magmatic differentiation KW - volcanic rocks KW - Phlegraean Fields KW - igneous rocks KW - Europe KW - Italy KW - Southern Europe KW - upper Pleistocene KW - Cenozoic KW - volcanic features KW - pyroxene group KW - mineral composition KW - clinopyroxene KW - major elements KW - trachytes KW - framework silicates KW - tuff KW - trace elements KW - hybridization KW - chemical composition KW - geochemistry KW - zoning KW - vents KW - chain silicates KW - Quaternary KW - ignimbrite KW - Campania Italy KW - calderas KW - pyroclastics KW - magmas KW - eruptions KW - pumice KW - Pleistocene KW - petrography KW - fractional crystallization KW - feldspar group KW - magma chambers KW - 24:Quaternary geology KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52742798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Geochemical+zoning%2C+mingling%2C+eruptive+dynamics+and+depositional+processes%3B+the+Campanian+Ignimbrite%2C+Campi+Flegrei+caldera%2C+Italy&rft.au=Civetta%2C+L%3BOrsi%2C+G%3BPappalardo%2C+L%3BFisher%2C+R+V%3BHeiken%2C+G%3BOrt%2C+M&rft.aulast=Civetta&rft.aufirst=L&rft.date=1997-02-01&rft.volume=75&rft.issue=3-4&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2FS0377-0273%2896%2900027-3 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 72 N1 - Document feature - illus. incl. 10 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - calderas; Campania Italy; Cenozoic; chain silicates; chemical composition; clinopyroxene; eruptions; Europe; feldspar group; fractional crystallization; framework silicates; geochemistry; hybridization; igneous rocks; ignimbrite; Italy; magma chambers; magmas; magmatic differentiation; major elements; mineral composition; petrography; Phlegraean Fields; Pleistocene; pumice; pyroclastics; pyroxene group; Quaternary; silicates; Southern Europe; trace elements; trachytes; tuff; upper Pleistocene; vents; volcanic features; volcanic rocks; zoning DO - http://dx.doi.org/10.1016/S0377-0273(96)00027-3 ER - TY - JOUR T1 - Continental drilling AN - 52733302; 1997-030083 JF - Geotimes AU - Heiken, Grant AU - Nielson, Dennis L AU - Lawrence, Roland P Y1 - 1997/02// PY - 1997 DA - February 1997 SP - 57 EP - 58 PB - American Geological Institute, Alexandria, VA VL - 42 IS - 2 SN - 0016-8556, 0016-8556 KW - United States KW - processes KW - heat flow KW - sedimentation KW - drilling KW - North Atlantic KW - thermal regime KW - review KW - Atlantic Ocean KW - Great Bahama Bank KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52733302?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geotimes&rft.atitle=Continental+drilling&rft.au=Heiken%2C+Grant%3BNielson%2C+Dennis+L%3BLawrence%2C+Roland+P&rft.aulast=Heiken&rft.aufirst=Grant&rft.date=1997-02-01&rft.volume=42&rft.issue=2&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Geotimes&rft.issn=00168556&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - VA N1 - Last updated - 2012-06-07 N1 - CODEN - GEOTAJ N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; drilling; Great Bahama Bank; heat flow; North Atlantic; processes; review; sedimentation; thermal regime; United States ER - TY - JOUR T1 - A new map of the geographic extent of the Socorro mid-crustal magma body AN - 52689922; 1997-058947 AB - For 35 years, strong reflected phases from the sill-like, mid-crustal Socorro magma body (SMB) have been observed on microearthquake seismograms recorded in the central Rio Grande rift, New Mexico. In 1979, the lateral extent of the SMB was estimated at 1700 km (super 2) by mapping reflection points for 220 observed S (sub z) S arrivals. We have remapped the magma body using 697 P (sub z) P, 2169 S (sub z) P, and 2589 S (sub z) S reflections observed on seismograms recorded between 1975 and 1995 by New Mexico Tech seismic networks. These data indicate that the SMB covers an area greater than 3400 km (super 2) . By comparing the distribution of observed reflection points with the distribution of all possible reflection points, limits can be set for the northern and southern boundaries of the SMB. The approximately 80 km north-south extent of the SMB falls just inside a approximately 100-km north-south range of enhanced seismicity near Socorro. This area, the Socorro seismic anomaly (SSA), covers approximately 5000 km (super 2) and has the same elliptical shape as the outline of the SMB based on observed reflection points. The close spatial relation between the SSA and the mid-crustal magma body along their northern and southern boundaries suggests that the observed seismicity can be used to place limits on the eastern and western boundaries of the magma body. Using the distribution of earthquakes within the SSA over the last 34 years, the maximum east-west extent of the SMB is <60 km, our reflection based value is approximately 50 km. Our data indicates that the upper surface of the magma body displays no regional dip. Considering timing errors, maximum possible relief on the magma body surface is + or -0.50 km. JF - Bulletin of the Seismological Society of America AU - Balch, Robert S AU - Hartse, Hans E AU - Sanford, Allan R AU - Lin, Kuo-wan Y1 - 1997/02// PY - 1997 DA - February 1997 SP - 174 EP - 182 PB - Seismological Society of America, Berkeley, CA VL - 87 IS - 1 SN - 0037-1106, 0037-1106 KW - United States KW - seismograms KW - seismology KW - Socorro County New Mexico KW - anomalies KW - New Mexico KW - Socorro New Mexico KW - velocity structure KW - interpretation KW - microearthquakes KW - earthquakes KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52689922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=A+new+map+of+the+geographic+extent+of+the+Socorro+mid-crustal+magma+body&rft.au=Balch%2C+Robert+S%3BHartse%2C+Hans+E%3BSanford%2C+Allan+R%3BLin%2C+Kuo-wan&rft.aulast=Balch&rft.aufirst=Robert&rft.date=1997-02-01&rft.volume=87&rft.issue=1&rft.spage=174&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 25 N1 - PubXState - CA N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - anomalies; crust; earthquakes; interpretation; microearthquakes; New Mexico; seismograms; seismology; Socorro County New Mexico; Socorro New Mexico; United States; velocity structure ER - TY - RPRT T1 - Models of the Campi Flegrei thermal regime constrain its magmatic history AN - 898199803; 2011-085913 JF - Volcanic activity and the environment general assembly AU - Wohletz, K H AU - Civetta, L AU - Orsi, G AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 156 KW - volcanic rocks KW - Phlegraean Fields KW - ignimbrite KW - igneous rocks KW - data processing KW - Europe KW - thermal regime KW - Italy KW - Southern Europe KW - Campania Italy KW - volcanic fields KW - computer programs KW - pyroclastics KW - geothermal fields KW - tuff KW - 24:Quaternary geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898199803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Wohletz%2C+K+H%3BCivetta%2C+L%3BOrsi%2C+G%3BAnonymous&rft.aulast=Wohletz&rft.aufirst=K&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Models+of+the+Campi+Flegrei+thermal+regime+constrain+its+magmatic+history&rft.title=Models+of+the+Campi+Flegrei+thermal+regime+constrain+its+magmatic+history&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Nd isotopic cyclicity in rhyolite of the Long Valley Caldera system and implications for eruption forecasting AN - 898199393; 2011-085732 JF - Volcanic activity and the environment general assembly AU - DePaolo, D J AU - Perry, F V AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 111 KW - United States KW - cycles KW - rhyolites KW - volcanic rocks KW - Quaternary KW - Mono County California KW - isotopes KW - isotope ratios KW - igneous rocks KW - stable isotopes KW - Long Valley Caldera KW - Nd-144/Nd-143 KW - Cenozoic KW - California KW - volcanism KW - metals KW - eruptions KW - absolute age KW - rare earths KW - neodymium KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898199393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=DePaolo%2C+D+J%3BPerry%2C+F+V%3BAnonymous&rft.aulast=DePaolo&rft.aufirst=D&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Nd+isotopic+cyclicity+in+rhyolite+of+the+Long+Valley+Caldera+system+and+implications+for+eruption+forecasting&rft.title=Nd+isotopic+cyclicity+in+rhyolite+of+the+Long+Valley+Caldera+system+and+implications+for+eruption+forecasting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Assessing the role of water in cooling ignimbrites AN - 898199219; 2011-085577 JF - Volcanic activity and the environment general assembly AU - Keating, G N AU - Zyvoloski, G A AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 72 KW - water KW - fractured materials KW - meteoric water KW - volcanic rocks KW - ignimbrite KW - igneous rocks KW - water vapor KW - fluid phase KW - solubility KW - thermal history KW - porosity KW - pyroclastics KW - finite element analysis KW - volatiles KW - infiltration KW - cooling KW - mass transfer KW - P-T conditions KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898199219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Keating%2C+G+N%3BZyvoloski%2C+G+A%3BAnonymous&rft.aulast=Keating&rft.aufirst=G&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Assessing+the+role+of+water+in+cooling+ignimbrites&rft.title=Assessing+the+role+of+water+in+cooling+ignimbrites&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Syn-eruptive faulting in Grants Ridge Tuff, NM AN - 898198702; 2011-085305 JF - Volcanic activity and the environment general assembly AU - Keating, G N AU - Valentine, G A AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 3 KW - United States KW - volcanic rocks KW - igneous rocks KW - New Mexico KW - Valencia County New Mexico KW - Cenozoic KW - pyroclastics KW - Tertiary KW - Grants Ridge Tuff KW - Neogene KW - eruptions KW - volcanic earthquakes KW - Pliocene KW - tuff KW - Grants New Mexico KW - earthquakes KW - faults KW - 24:Quaternary geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898198702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Keating%2C+G+N%3BValentine%2C+G+A%3BAnonymous&rft.aulast=Keating&rft.aufirst=G&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Syn-eruptive+faulting+in+Grants+Ridge+Tuff%2C+NM&rft.title=Syn-eruptive+faulting+in+Grants+Ridge+Tuff%2C+NM&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Small-scale volcaniclastic aggradation-degradation cycle, northwestern Vulcano Island, Italy AN - 898171784; 2011-085744 JF - Volcanic activity and the environment general assembly AU - Valentine, G A AU - Palladino, D M AU - Agosta, E AU - Taddeucci, J AU - Trigila, R AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 114 KW - cycles KW - rhyolites KW - degradation KW - volcanic rocks KW - igneous rocks KW - aggradation KW - Europe KW - Italy KW - Southern Europe KW - pyroclastics KW - ash flows KW - volcaniclastics KW - Sicily Italy KW - pyroclastic flows KW - Lipari Islands KW - Vulcano KW - volcanic ash KW - 24:Quaternary geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898171784?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Valentine%2C+G+A%3BPalladino%2C+D+M%3BAgosta%2C+E%3BTaddeucci%2C+J%3BTrigila%2C+R%3BAnonymous&rft.aulast=Valentine&rft.aufirst=G&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Small-scale+volcaniclastic+aggradation-degradation+cycle%2C+northwestern+Vulcano+Island%2C+Italy&rft.title=Small-scale+volcaniclastic+aggradation-degradation+cycle%2C+northwestern+Vulcano+Island%2C+Italy&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Correlation between fluids from Pacaya Volcano and Amatitlan geothermal system AN - 898170625; 2011-085471 JF - Volcanic activity and the environment general assembly AU - Roldan Manzo, A R AU - Goff, F AU - McMurtry, G AU - Lima, E AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 45 KW - Amatitlan Caldera KW - isotopes KW - isotope ratios KW - Guatemala KW - C-13/C-12 KW - fluid phase KW - correlation KW - Pacaya KW - stable isotopes KW - geothermal systems KW - noble gases KW - carbon KW - helium KW - He-4/He-3 KW - Central America KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898170625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Roldan+Manzo%2C+A+R%3BGoff%2C+F%3BMcMurtry%2C+G%3BLima%2C+E%3BAnonymous&rft.aulast=Roldan+Manzo&rft.aufirst=A&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Correlation+between+fluids+from+Pacaya+Volcano+and+Amatitlan+geothermal+system&rft.title=Correlation+between+fluids+from+Pacaya+Volcano+and+Amatitlan+geothermal+system&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Monitoring volcanic activity through study of contaminated glacial ice at Popocatepetl Volcano, Mexico AN - 898170539; 2011-085455 JF - Volcanic activity and the environment general assembly AU - Delgado, H AU - Goff, F AU - Cardenas-Gonzalez, L AU - Venegas-Mendoza, J J AU - Wingartz, J AU - Orozco, G AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 41 KW - ice cores KW - monitoring KW - geologic hazards KW - fumaroles KW - firn KW - glaciers KW - Popocatepetl KW - volcanic risk KW - Mexico KW - ice KW - snow KW - natural hazards KW - volcanoes KW - 24:Quaternary geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898170539?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Delgado%2C+H%3BGoff%2C+F%3BCardenas-Gonzalez%2C+L%3BVenegas-Mendoza%2C+J+J%3BWingartz%2C+J%3BOrozco%2C+G%3BAnonymous&rft.aulast=Delgado&rft.aufirst=H&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Monitoring+volcanic+activity+through+study+of+contaminated+glacial+ice+at+Popocatepetl+Volcano%2C+Mexico&rft.title=Monitoring+volcanic+activity+through+study+of+contaminated+glacial+ice+at+Popocatepetl+Volcano%2C+Mexico&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Chemical and isotopic composition of high-temperature fumarolic gases from Colima Volcano, Mexico AN - 898170517; 2011-085453 JF - Volcanic activity and the environment general assembly AU - Taran, Y A AU - Gavilanes, J C AU - Lunezheva, E AU - Goff, F AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 41 KW - oxygen KW - isotopes KW - Jalisco Mexico KW - isotope ratios KW - fumaroles KW - O-18/O-16 KW - stable isotopes KW - temperature KW - gases KW - Colima KW - volatiles KW - Mexico KW - hydrogen KW - volcanoes KW - deuterium KW - chemical composition KW - high temperature KW - 24:Quaternary geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898170517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Taran%2C+Y+A%3BGavilanes%2C+J+C%3BLunezheva%2C+E%3BGoff%2C+F%3BAnonymous&rft.aulast=Taran&rft.aufirst=Y&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Chemical+and+isotopic+composition+of+high-temperature+fumarolic+gases+from+Colima+Volcano%2C+Mexico&rft.title=Chemical+and+isotopic+composition+of+high-temperature+fumarolic+gases+from+Colima+Volcano%2C+Mexico&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Xela Caldera, Guatemala AN - 898170053; 2011-085394 JF - Volcanic activity and the environment general assembly AU - Heiken, G AU - Ort, M AU - Duffield, W AU - McEwen, A AU - Foley, D AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 26 KW - rhyolites KW - volcanic rocks KW - igneous rocks KW - Guatemala KW - calderas KW - gravity anomalies KW - volcanic features KW - volcanism KW - Quezaltenango Basin KW - Bouguer anomalies KW - Central America KW - Xela Caldera KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898170053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Heiken%2C+G%3BOrt%2C+M%3BDuffield%2C+W%3BMcEwen%2C+A%3BFoley%2C+D%3BAnonymous&rft.aulast=Heiken&rft.aufirst=G&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Xela+Caldera%2C+Guatemala&rft.title=Xela+Caldera%2C+Guatemala&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Simulations of chemical and dynamical effects due to volcanic aerosols using a global climate model AN - 898169972; 2011-085388 JF - Volcanic activity and the environment general assembly AU - Kao, C Y J AU - Zhao, X AU - Turco, R P AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 24 KW - geologic hazards KW - global change KW - simulation KW - environmental effects KW - climate change KW - gases KW - volatiles KW - eruptions KW - natural hazards KW - volcanoes KW - theoretical models KW - aerosols KW - 24:Quaternary geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898169972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Kao%2C+C+Y+J%3BZhao%2C+X%3BTurco%2C+R+P%3BAnonymous&rft.aulast=Kao&rft.aufirst=C+Y&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Simulations+of+chemical+and+dynamical+effects+due+to+volcanic+aerosols+using+a+global+climate+model&rft.title=Simulations+of+chemical+and+dynamical+effects+due+to+volcanic+aerosols+using+a+global+climate+model&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Volatile flux and gas composition at Kudriavy Volcano, Kuril Islands, Russia AN - 898169676; 2011-085299 JF - Volcanic activity and the environment general assembly AU - Fischer, T P AU - Williams, S N AU - Korzhinski, M A AU - Goff, F AU - Sano, Y AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 2 KW - Russian Pacific region KW - Sakhalin Russian Federation KW - volcanic rocks KW - igneous rocks KW - magmatism KW - Kudryavyy KW - Russian Federation KW - Etorofu Island KW - gases KW - Kuril Islands KW - Commonwealth of Independent States KW - volcanism KW - volcanoes KW - chemical composition KW - Asia KW - P-T conditions KW - degassing KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898169676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Fischer%2C+T+P%3BWilliams%2C+S+N%3BKorzhinski%2C+M+A%3BGoff%2C+F%3BSano%2C+Y%3BAnonymous&rft.aulast=Fischer&rft.aufirst=T&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Volatile+flux+and+gas+composition+at+Kudriavy+Volcano%2C+Kuril+Islands%2C+Russia&rft.title=Volatile+flux+and+gas+composition+at+Kudriavy+Volcano%2C+Kuril+Islands%2C+Russia&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Shallow crustal xenoliths in continental basalts and implications for magma ascent dynamics AN - 898169619; 2011-085294 JF - Volcanic activity and the environment general assembly AU - Valentine, G A AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 1 KW - magma transport KW - volcanic rocks KW - transport KW - wall rocks KW - volcanism KW - igneous rocks KW - magmatism KW - inclusions KW - basalts KW - xenoliths KW - 24:Quaternary geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898169619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Valentine%2C+G+A%3BAnonymous&rft.aulast=Valentine&rft.aufirst=G&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Shallow+crustal+xenoliths+in+continental+basalts+and+implications+for+magma+ascent+dynamics&rft.title=Shallow+crustal+xenoliths+in+continental+basalts+and+implications+for+magma+ascent+dynamics&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Assessment of geochemical variations at the Lathrop Wells Volcano using Monte-Carlo simulations and genetic algorithms AN - 898156141; 2011-085385 JF - Volcanic activity and the environment general assembly AU - Perry, F V AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 24 KW - United States KW - Quaternary KW - genetic algorithms KW - Monte Carlo analysis KW - statistical analysis KW - simulation KW - variations KW - Cenozoic KW - lava KW - metals KW - magmas KW - eruptions KW - volcanoes KW - Lathrop Wells KW - rare earths KW - fractional crystallization KW - algorithms KW - geochemistry KW - Nevada KW - southwestern Nevada KW - 24:Quaternary geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898156141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Perry%2C+F+V%3BAnonymous&rft.aulast=Perry&rft.aufirst=F&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Assessment+of+geochemical+variations+at+the+Lathrop+Wells+Volcano+using+Monte-Carlo+simulations+and+genetic+algorithms&rft.title=Assessment+of+geochemical+variations+at+the+Lathrop+Wells+Volcano+using+Monte-Carlo+simulations+and+genetic+algorithms&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Chemical and sulfur isotope variations in alkaline trap samples at Popocatepetl Volcano from January to December 1994 AN - 898156063; 2011-085380 JF - Volcanic activity and the environment general assembly AU - Janik, C J AU - Goff, F AU - Delgado, H AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 22 KW - isotopes KW - isotope ratios KW - fumaroles KW - Popocatepetl KW - stable isotopes KW - volcanology KW - alkalic composition KW - Mexico KW - S-34/S-32 KW - magmas KW - volcanoes KW - sulfur KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898156063?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Janik%2C+C+J%3BGoff%2C+F%3BDelgado%2C+H%3BAnonymous&rft.aulast=Janik&rft.aufirst=C&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Chemical+and+sulfur+isotope+variations+in+alkaline+trap+samples+at+Popocatepetl+Volcano+from+January+to+December+1994&rft.title=Chemical+and+sulfur+isotope+variations+in+alkaline+trap+samples+at+Popocatepetl+Volcano+from+January+to+December+1994&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - A numerical model for subsurface biodegradation with microbial interactions AN - 890672284; 2011-076343 JF - 1997 AGWSE national convention and exposition on Biological aspects of ground water AU - Travis, Bryan AU - Apgar, Michael Y1 - 1997 PY - 1997 DA - 1997 PB - National Ground Water Association, Association of Ground Water Scientists and Engineers, Westerville, OH KW - United States KW - solute transport KW - soils KW - Savannah River KW - in situ KW - pollutants KW - finite difference analysis KW - pollution KW - porous materials KW - mathematical models KW - ecosystems KW - bioavailability KW - bioremediation KW - remediation KW - nutrients KW - models KW - substrates KW - transport KW - soil pollution KW - multiphase flow KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890672284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Travis%2C+Bryan%3BApgar%2C+Michael&rft.aulast=Travis&rft.aufirst=Bryan&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=A+numerical+model+for+subsurface+biodegradation+with+microbial+interactions&rft.title=A+numerical+model+for+subsurface+biodegradation+with+microbial+interactions&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1997 AGWSE national convention and exposition on Biological aspects of ground water N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - PubXState - OH N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Measurement and application of uranium isotopes for human and environmental monitoring. AN - 78770657; 8972822 AB - An improved method is described utilizing extraction chromatography, anion exchange, and alpha spectroscopy for measurement of uranium isotopes in human and environmental surveillance studies. These methods provide a sensitivity of approximately 0.7 mBq per isotope per sample and are generally accurate within the precision of the measurements. The extraction chromatography methods greatly simplify separation of uranium from iron in silicate matrices and provide increased sample throughput and data quality for water, soil, and air filter samples. For bioassay samples, the coprecipitation/anion exchange/alpha spectrometric methods provide rapid throughput and sufficient sensitivity to meet new analytical performance standards in human monitoring studies. In addition, the 234U:238U data can be used as a fingerprint of natural vs. anthropogenic sources of uranium. For 1995 data from our laboratory, a large percentage (79-94% by matrix) of samples appear to be of natural 234U:238U isotopic composition. For all matrices, samples with higher uranium concentration generally have more depleted isotopic composition (smaller 234U:238U). A small percentage of soil (11%), air filter (3%), urine (3%), and water (3%) samples have depleted isotopic signatures at the 95% confidence interval, indicating anthropogenic contributions of uranium to these samples. JF - Health physics AU - Goldstein, S J AU - Rodriguez, J M AU - Lujan, N AD - Inorganic Trace Analysis Group, Chemical Science and Technology Division, Los Alamos National Laboratory, NM 87545, USA. Y1 - 1997/01// PY - 1997 DA - January 1997 SP - 10 EP - 18 VL - 72 IS - 1 SN - 0017-9078, 0017-9078 KW - Air Pollutants, Radioactive KW - 0 KW - Soil Pollutants, Radioactive KW - Water Pollutants, Radioactive KW - Uranium KW - 4OC371KSTK KW - Index Medicus KW - Humans KW - Air Pollutants, Radioactive -- analysis KW - Water Pollutants, Radioactive -- analysis KW - Soil Pollutants, Radioactive -- analysis KW - Uranium -- urine KW - Uranium -- analysis KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78770657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Measurement+and+application+of+uranium+isotopes+for+human+and+environmental+monitoring.&rft.au=Goldstein%2C+S+J%3BRodriguez%2C+J+M%3BLujan%2C+N&rft.aulast=Goldstein&rft.aufirst=S&rft.date=1997-01-01&rft.volume=72&rft.issue=1&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-01-17 N1 - Date created - 1997-01-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Extended pseudo-screen migration with multiple reference velocities AN - 759306475; 2010-087832 AB - The pseudo-screen propagator is a kind of one-way wave propagator based on the local Born approximation. The propagator becomes unreliable when the velocity perturbation is large. We develop an extended pseudo-screen propagator by introducing different reference velocities in different regions of a medium to ensure the condition of small perturbation. Exploding reflector data for a 2D slice of the SEG/EAEG 3D salt model is generated by a finite-difference scheme to test the feasibility of the method. The migration result demonstrates that the method can handle severe lateral velocity variations and provides high quality images of complex structures. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Huang, Lian-Je AU - Fehler, Michael C AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 1742 EP - 1745 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 16 SN - 1052-3812, 1052-3812 KW - case studies KW - geophysical methods KW - propagation KW - mathematical models KW - elastic waves KW - seismic waves KW - seismic migration KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759306475?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Extended+pseudo-screen+migration+with+multiple+reference+velocities&rft.au=Huang%2C+Lian-Je%3BFehler%2C+Michael+C%3BAnonymous&rft.aulast=Huang&rft.aufirst=Lian-Je&rft.date=1997-01-01&rft.volume=16&rft.issue=&rft.spage=1742&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1886099 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 67th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 11 N1 - PubXState - OK N1 - Document feature - illus. incl. sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - case studies; elastic waves; geophysical methods; mathematical models; propagation; seismic methods; seismic migration; seismic waves DO - http://dx.doi.org/10.1190/1.1886099 ER - TY - JOUR T1 - Accuracy analysis of the phase-screen propagator; implications for modeling and migration AN - 759306125; 2010-087831 AB - We present formal and numerical error analyses of the phase-screen (or split-step Fourier) propagator. Numerical results suggest that the propagator is accurate up to 60 degrees propagation angle relative the main propagation direction for media with small velocity perturbations. We investigate the errors from various approaches for splitting the exponential operator of the phase-screen propagator. The symmetrically split equations are slightly more accurate than the one-step split equations. Numerical examples show that the differences among splitting approaches are not significant. Therefore, relative to the symmetrically split equations, the one-step-free one-step-perturbation split equation is more efficient for migration in which wavefields in the space domain at all depth levels must be calculated. However, the half-step-free one-step-perturbation half-step-free split equation has almost the same efficiency as the one-step split equations for forward wave simulations. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Huang, Lian-Je AU - Fehler, Michael C AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 1738 EP - 1741 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 16 SN - 1052-3812, 1052-3812 KW - errors KW - traveltime KW - phase screen method KW - geophysical methods KW - propagation KW - mathematical models KW - elastic waves KW - seismic waves KW - seismic migration KW - accuracy KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759306125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Accuracy+analysis+of+the+phase-screen+propagator%3B+implications+for+modeling+and+migration&rft.au=Huang%2C+Lian-Je%3BFehler%2C+Michael+C%3BAnonymous&rft.aulast=Huang&rft.aufirst=Lian-Je&rft.date=1997-01-01&rft.volume=16&rft.issue=&rft.spage=1738&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1885768 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 67th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 6 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; elastic waves; errors; geophysical methods; mathematical models; phase screen method; propagation; seismic methods; seismic migration; seismic waves; traveltime DO - http://dx.doi.org/10.1190/1.1885768 ER - TY - JOUR T1 - Identifying structures in clouds of induced microseismic events AN - 759304880; 2010-087686 AB - A method for finding improved relative locations of microearthquakes accompanying fluid production and injection is presented. The method is based on the assumption that the microearthquake locations are more clustered than found when events are located using conventional techniques. By allowing the rms misfit between measured arrival times and predicted arrival times to increase if events move closer together, we find that there is more structure in the pattern of seismic locations. The method is demonstrated using a dataset of microearthquakes induced by hydraulic fracturing. We find that structures found using relative arrival times of events having similar waveforms to find improved relative locations of events can also be recovered using the new inversion method but without the laborious repicking procedure. The method provides improved relative locations and hence, an improved image of the structure within the seismic zone that may allow for a better relation between microearthquake locations and zones of increased fluid permeability to be found. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Fehler, Michael C AU - House, Leigh AU - Phillips, W Scott AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 800 EP - 803 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 16 SN - 1052-3812, 1052-3812 KW - United States KW - hydraulic fracturing KW - Sandoval County New Mexico KW - New Mexico KW - hot dry rocks KW - geothermal energy KW - spatial distribution KW - geothermal reservoirs KW - fluid injection KW - Fenton Hill KW - microseisms KW - focus KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759304880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Identifying+structures+in+clouds+of+induced+microseismic+events&rft.au=Fehler%2C+Michael+C%3BHouse%2C+Leigh%3BPhillips%2C+W+Scott%3BAnonymous&rft.aulast=Fehler&rft.aufirst=Michael&rft.date=1997-01-01&rft.volume=16&rft.issue=&rft.spage=800&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1886133 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 67th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 10 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - earthquakes; Fenton Hill; fluid injection; focus; geothermal energy; geothermal reservoirs; hot dry rocks; hydraulic fracturing; microseisms; New Mexico; Sandoval County New Mexico; spatial distribution; United States DO - http://dx.doi.org/10.1190/1.1886133 ER - TY - JOUR T1 - Numerical and measured data from the 3-D salt canopy physical modeling project AN - 759304056; 2010-085329 AB - The evolution of salt structures in the Gulf of Mexico have been shown to provide a mechanism for the trapping of significant hydrocarbon reserves. Most of these structures have complex geometries relative to the surrounding sedimentary layers. This aspect in addition to high velocities within the salt tend to scatter and defocus seismic energy and make imaging of subsalt lithology extremely difficult. An ongoing program, the SEG/EAEG modeling project (Aminzadeh et al., 1994a; Aminzadeh et al., 1994b; Aminzadeh et al., 1995), and a follow-up project funded as part of the Advanced Computational Technology Initiative (ACTI) (House et al., 1996) have sought to investigate problems with imaging beneath complex salt structures using numerical modeling and more recently, construction of a physical model patterned after the numerical subsalt model (Wiley and McKnight, 1996). To date, no direct comparison of the numerical and physical aspects of these models has been attempted. We present the results of forward modeling a numerical realization of the 3D salt canopy physical model with the French Petroleum Institute (IFP) acoustic finite difference algorithm used in the numerical subsalt tests. We compare the results from the physical salt canopy model, the acoustic modeling of the physical/numerical model and the original numerical SEG/EAEG Salt Model. We will be testing the sensitivity of migration to the presence of converted shear waves and acquisition geometry. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Bradley, C AU - House, L AU - Fehler, Michael AU - Pearson, J AU - TenCate, J AU - Wiley, R AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 1476 EP - 1479 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 16 SN - 1052-3812, 1052-3812 KW - salt tectonics KW - petroleum exploration KW - seismic profiles KW - numerical models KW - geophysical surveys KW - three-dimensional models KW - salt domes KW - geophysical methods KW - data processing KW - prediction KW - petroleum KW - Gulf of Mexico KW - seismic methods KW - subsalt strata KW - digital simulation KW - surveys KW - geophysical profiles KW - tectonics KW - North Atlantic KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759304056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Numerical+and+measured+data+from+the+3-D+salt+canopy+physical+modeling+project&rft.au=Bradley%2C+C%3BHouse%2C+L%3BFehler%2C+Michael%3BPearson%2C+J%3BTenCate%2C+J%3BWiley%2C+R%3BAnonymous&rft.aulast=Bradley&rft.aufirst=C&rft.date=1997-01-01&rft.volume=16&rft.issue=&rft.spage=1476&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1885692 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 67th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 8 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; data processing; digital simulation; geophysical methods; geophysical profiles; geophysical surveys; Gulf of Mexico; North Atlantic; numerical models; petroleum; petroleum exploration; prediction; salt domes; salt tectonics; seismic methods; seismic profiles; subsalt strata; surveys; tectonics; three-dimensional models DO - http://dx.doi.org/10.1190/1.1885692 ER - TY - JOUR T1 - Prestack depth migration for complex 2D structure using phase-screen propagators AN - 759302204; 2010-085279 AB - We present results for the phase-screen propagator method applied to prestack depth migration of the Marmousi synthetic data set. The data were migrated as individual common-shot records and the resulting partial images were superposed to obtain the final complete image. Tests were performed to determine the minimum number of frequency components required to achieve the best quality image and this in turn provided estimates of the minimum computing time. Running on a single processor SUN SPARC Ultra 1, high quality images were obtained in as little as 8.7 CPU hours and adequate images were obtained in as little as 4.4 CPU hours. Different methods were tested for choosing the reference velocity used for the background phase-shift operation and for defining the slowness perturbation screens. Although the depths of some of the steeply dipping, high-contrast features were shifted slightly, the overall image quality was fairly insensitive to the choice of the reference velocity. Our tests show the phase-screen method to be a reliable and fast algorithm for imaging complex geologic structures, at least for complex 2D synthetic data where the velocity model is known. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Roberts, Peter AU - Huang, Lian-Jie AU - Burch, Charles AU - Fehler, Michael AU - Hildebrand, Steven AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 1282 EP - 1285 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 16 SN - 1052-3812, 1052-3812 KW - imagery KW - phase screen method KW - geophysical methods KW - elastic waves KW - seismic migration KW - depth KW - seismic methods KW - models KW - case studies KW - velocity KW - propagation KW - graphic methods KW - seismic waves KW - image enhancement KW - prestack migration KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759302204?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Prestack+depth+migration+for+complex+2D+structure+using+phase-screen+propagators&rft.au=Roberts%2C+Peter%3BHuang%2C+Lian-Jie%3BBurch%2C+Charles%3BFehler%2C+Michael%3BHildebrand%2C+Steven%3BAnonymous&rft.aulast=Roberts&rft.aufirst=Peter&rft.date=1997-01-01&rft.volume=16&rft.issue=&rft.spage=1282&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1885635 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 67th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 11 N1 - PubXState - OK N1 - Document feature - illus. incl. sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - case studies; depth; elastic waves; geophysical methods; graphic methods; image enhancement; imagery; models; phase screen method; prestack migration; propagation; seismic methods; seismic migration; seismic waves; velocity DO - http://dx.doi.org/10.1190/1.1885635 ER - TY - JOUR T1 - Terrain mapping by reflectorless laser rangefinding systems for inner zone gravity terrain corrections AN - 756292766; 2010-083531 AB - Reflectorless laser rangefinding technology has the ability to generate reflections from many types of materials and angles of incidence without a comer reflector . These laser "guns" have built in inclinometers and compasses which when combined with the laser for distance measurements result in three dimensional mapping, a hand held total station. Although the angle and distance resolution is much poorer than that for total stations, for short (hundred meters) distances the mapping is more than adequate for terrain mapping for gravity terrain corrections. The nearby terrain model is usually estimated visually perhaps with an inclinometer and an optical rangefinder at best, but not digitally and with poor repeatability. The inaccuracy of present inner terrain correction methods can be detrimental to many surveys, and especially for microGal surveys. The combination of digital gravity meters, Global Positioning System locations and the laser gun terrain models result in a totally digital, quantitative gravity surveying system with greater ultimate accuracy. Field procedures and custom software have been developed and combined with a Laser Atlanta Optics Advantage rangefinder for gravity terrain corrections. Examples of surveys in the Dallas, Texas area, in canyons near Sodaville, Nevada, and at an operating mine in northern Nevada are presented. The terrain corrections from laser mapping when compared to corrections from 1:24,000 forty meter USGS and high resolution photogrammetric DTM models, show significant differences. The results demonstrate that the reflectorless laser rangefinder with inclinometer and compass can provide digital, quantitative terrain models for better terrain correction accuracy more efficiently and economically than previously possible and that real time gravity surveying is possible. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Lyman, Gregory D AU - Aiken, Carlos L V AU - Cogbill, Allen AU - Balde, Mamadou AU - Lide, Chet AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 482 EP - 485 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 16 SN - 1052-3812, 1052-3812 KW - case studies KW - gravity methods KW - topography KW - laser methods KW - geophysical methods KW - surveys KW - mapping KW - corrections KW - digital terrain models KW - accuracy KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/756292766?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Terrain+mapping+by+reflectorless+laser+rangefinding+systems+for+inner+zone+gravity+terrain+corrections&rft.au=Lyman%2C+Gregory+D%3BAiken%2C+Carlos+L+V%3BCogbill%2C+Allen%3BBalde%2C+Mamadou%3BLide%2C+Chet%3BAnonymous&rft.aulast=Lyman&rft.aufirst=Gregory&rft.date=1997-01-01&rft.volume=16&rft.issue=&rft.spage=482&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1885939 L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 67th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 6 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; case studies; corrections; digital terrain models; geophysical methods; gravity methods; laser methods; mapping; surveys; topography DO - http://dx.doi.org/10.1190/1.1885939 ER - TY - JOUR T1 - New model for infiltration AN - 742905133; 2010-046077 JF - Eos, Transactions, American Geophysical Union AU - Mitkov, Igor AU - Tartakovsky, Daniel M AU - Larrabee, Winter C AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 247 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - hydraulic head KW - saturation KW - infiltration KW - unsaturated zone KW - hydraulic conductivity KW - equations KW - Richards model KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742905133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=New+model+for+infiltration&rft.au=Mitkov%2C+Igor%3BTartakovsky%2C+Daniel+M%3BLarrabee%2C+Winter+C%3BAnonymous&rft.aulast=Mitkov&rft.aufirst=Igor&rft.date=1997-01-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - equations; hydraulic conductivity; hydraulic head; infiltration; Richards model; saturation; unsaturated zone ER - TY - JOUR T1 - Tracer tests in fractured tuff core; sorption, dispersion, and matrix diffusion processes AN - 742904646; 2010-046066 JF - Eos, Transactions, American Geophysical Union AU - Callahan, T J AU - Reimus, P W AU - Turin, H J AU - Bowman, R S AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 243 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - solute transport KW - fractured materials KW - diffusion KW - volcanic rocks KW - lithium KW - igneous rocks KW - alkali metals KW - Nye County Nevada KW - pyroclastics KW - transport KW - metals KW - tracers KW - hydrodynamics KW - tuff KW - Yucca Mountain KW - Nevada KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742904646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Tracer+tests+in+fractured+tuff+core%3B+sorption%2C+dispersion%2C+and+matrix+diffusion+processes&rft.au=Callahan%2C+T+J%3BReimus%2C+P+W%3BTurin%2C+H+J%3BBowman%2C+R+S%3BAnonymous&rft.aulast=Callahan&rft.aufirst=T&rft.date=1997-01-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkali metals; diffusion; fractured materials; hydrodynamics; igneous rocks; lithium; metals; Nevada; Nye County Nevada; pyroclastics; solute transport; tracers; transport; tuff; United States; volcanic rocks; Yucca Mountain ER - TY - BOOK T1 - Volcanoes; crucibles of change AN - 52687936; 1997-064683 JF - Volcanoes; crucibles of change AU - Fisher, Richard V AU - Heiken, Grant AU - Hulen, Jeffrey B Y1 - 1997 PY - 1997 DA - 1997 SP - 317 PB - Princeton University Press, Princeton, NJ SN - 069101213X KW - case studies KW - volcanic risk KW - geologic hazards KW - eruptions KW - volcanoes KW - human ecology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52687936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Fisher%2C+Richard+V%3BHeiken%2C+Grant%3BHulen%2C+Jeffrey+B&rft.aulast=Fisher&rft.aufirst=Richard&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=069101213X&rft.btitle=Volcanoes%3B+crucibles+of+change&rft.title=Volcanoes%3B+crucibles+of+change&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - NJ N1 - Document feature - illus. incl. tables, sects., sketch maps N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Sea-level changes and geochemical anomalies across the Cenomanian-Turonian boundary; Pecinov Quarry, Bohemia AN - 52687914; 1997-064908 AB - Relationships between geochemical anomalies, sea-level change and other events were studied in the Cenomanian-Turonian boundary interval in the Pecinov quarry in southwestern part of the Bohemian Cretaceous Basin (Czech Republic). A major 3rd-order sea-level rise at the base of the late Cenomanian M. geslinianum Zone was followed by deposition of organic-enriched mudstones in a succession of parasequences, deposited in response to high-frequency (4th-order) sea-level fluctuations and recording a stepwise decrease in bottom oxygenation towards intensely dysaerobic conditions. A complex delta (super 13) C excursion occurs in total organic matter of the late Cenomanian deposits. A sequence boundary of latest Cenomanian age in the Pecinov section is correlated to a global sea-level fall during the N. juddii Zone. A renewed sea-level rise occurred during the early Turonian W. coloradoense Zone and reached maximum flooding during the M. nodosoides Zone. During the early Turonian, bottom waters were generally aerobic, and the positive delta (super 13) C excursion waned early in the W. coloradoense Zone. The magnitude of the delta (super 13) C excursion, more than 4, is approximately the same as in North America and Northern Africa, confirming that it was controlled by a global paleoceanographic mechanism. The absence of anoxia and a delta (super 13) C anomaly during the peak flooding of early Turonian age suggests that widespread deposition of organic-enriched deposits, as well as the positive shift in delta (super 13) C generally did not depend on the absolute elevation of sea level but, rather, on the area of newly flooded land during transgression. Abrupt, small-scale shifts in delta (super 13) C towards higher values coincide with the flooding surfaces of parasequences and may reflect either regional changes in the proportion of marine and terrestrial organic matter or rapid global changes in isotopic composition of marine organic matter related to high-frequency sea-level changes. Abundances of Ir, Sc, Cr, V and other elements previously reported as forming anomalous concentrations in the boundary interval showed no enrichment in the Bohemian section. This is most probably due to the large distance of the depositional site from the presumed volcanic source of element-enriched deep waters in the proto-Caribbean region. Anomalous concentrations of Mn at the base of the Turonian deposits was caused by diagenetic incorporation of Mn into siderite. JF - Palaeogeography, Palaeoclimatology, Palaeoecology AU - Ulicny, David AU - Hladikova, Jana AU - Attrep, Moses J, Jr AU - Cech, Stanislav AU - Hradecka, Lenka AU - Svobodova, Marcela Y1 - 1997 PY - 1997 DA - 1997 SP - 265 EP - 285 PB - Elsevier, Amsterdam VL - 132 IS - 1-4 SN - 0031-0182, 0031-0182 KW - isotopes KW - Cretaceous KW - Pecinov Quarry KW - regression KW - paleo-oceanography KW - Europe KW - Upper Cretaceous KW - upper Cenomanian KW - stable isotopes KW - transgression KW - Central Europe KW - carbon KW - geochemical anomalies KW - chemostratigraphy KW - lower Turonian KW - Bohemian Basin KW - sequence stratigraphy KW - isotope ratios KW - Bohemia KW - Cenomanian KW - C-13/C-12 KW - Turonian KW - Mesozoic KW - IGCP KW - sea-level changes KW - Czech Republic KW - anaerobic environment KW - stratigraphic boundary KW - eustasy KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52687914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Palaeogeography%2C+Palaeoclimatology%2C+Palaeoecology&rft.atitle=Sea-level+changes+and+geochemical+anomalies+across+the+Cenomanian-Turonian+boundary%3B+Pecinov+Quarry%2C+Bohemia&rft.au=Ulicny%2C+David%3BHladikova%2C+Jana%3BAttrep%2C+Moses+J%2C+Jr%3BCech%2C+Stanislav%3BHradecka%2C+Lenka%3BSvobodova%2C+Marcela&rft.aulast=Ulicny&rft.aufirst=David&rft.date=1997-01-01&rft.volume=132&rft.issue=1-4&rft.spage=265&rft.isbn=&rft.btitle=&rft.title=Palaeogeography%2C+Palaeoclimatology%2C+Palaeoecology&rft.issn=00310182&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00310182 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Document feature - illus. N1 - SuppNotes - IGCP Project No. 293 N1 - Last updated - 2014-03-14 N1 - CODEN - PPPYAB N1 - SubjectsTermNotLitGenreText - anaerobic environment; Bohemia; Bohemian Basin; C-13/C-12; carbon; Cenomanian; Central Europe; chemostratigraphy; Cretaceous; Czech Republic; Europe; eustasy; geochemical anomalies; IGCP; isotope ratios; isotopes; lower Turonian; Mesozoic; paleo-oceanography; Pecinov Quarry; regression; sea-level changes; sequence stratigraphy; stable isotopes; stratigraphic boundary; transgression; Turonian; upper Cenomanian; Upper Cretaceous ER - TY - JOUR T1 - Igneous and metamorphic U-Pb zircon ages from the Baltimore mafic complex, Maryland Piedmont AN - 52685443; 1997-068354 JF - Memoir - Geological Society of America AU - Sinha, A Krishna AU - Hanan, Barry B AU - Wayne, David M A2 - Sinha, A. Krishna A2 - Whalen, Joseph B. A2 - Hogan, John P. Y1 - 1997 PY - 1997 DA - 1997 SP - 275 EP - 286 PB - Geological Society of America (GSA), Boulder, CO VL - 191 SN - 0072-1069, 0072-1069 KW - silicates KW - amphibolitization KW - Appalachian Phase KW - U/Pb KW - Baltimore Gneiss KW - characterization KW - lead KW - Appalachians KW - titanite KW - electron probe data KW - metamorphic rocks KW - basalts KW - orthosilicates KW - absolute age KW - Maryland KW - chain silicates KW - zircon group KW - plutons KW - North America KW - Paleozoic KW - magma contamination KW - Wissahickon Formation KW - zircon KW - Silurian KW - intrusions KW - Lower Ordovician KW - petrography KW - SEM data KW - United States KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Gunpowder Block KW - metasomatism KW - stable isotopes KW - Ordovician KW - radioactive isotopes KW - pyroxene group KW - whole rock KW - dates KW - interpretation KW - Pb-207/Pb-204 KW - Precambrian KW - isotope ratios KW - Permian KW - Susquehanna Block KW - nesosilicates KW - metals KW - titanite group KW - mid-ocean ridge basalts KW - crystallization KW - Piedmont KW - igneous activity KW - 03:Geochronology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52685443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Memoir+-+Geological+Society+of+America&rft.atitle=Igneous+and+metamorphic+U-Pb+zircon+ages+from+the+Baltimore+mafic+complex%2C+Maryland+Piedmont&rft.au=Sinha%2C+A+Krishna%3BHanan%2C+Barry+B%3BWayne%2C+David+M&rft.aulast=Sinha&rft.aufirst=A&rft.date=1997-01-01&rft.volume=191&rft.issue=&rft.spage=275&rft.isbn=0813711916&rft.btitle=&rft.title=Memoir+-+Geological+Society+of+America&rft.issn=00721069&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 43 N1 - PubXState - CO N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAMAQ N1 - SubjectsTermNotLitGenreText - absolute age; amphibolitization; Appalachian Phase; Appalachians; Baltimore Gneiss; basalts; chain silicates; characterization; crystallization; dates; electron probe data; Gunpowder Block; igneous activity; igneous rocks; interpretation; intrusions; isotope ratios; isotopes; lead; Lower Ordovician; magma contamination; Maryland; metals; metamorphic rocks; metasomatism; mid-ocean ridge basalts; nesosilicates; North America; Ordovician; orthosilicates; Paleozoic; Pb-207/Pb-204; Permian; petrography; Piedmont; plutons; Precambrian; pyroxene group; radioactive isotopes; SEM data; silicates; Silurian; stable isotopes; Susquehanna Block; titanite; titanite group; U/Pb; United States; volcanic rocks; whole rock; Wissahickon Formation; zircon; zircon group ER - TY - JOUR T1 - Digital geologic map database of the Nevada Test Site area, Nevada AN - 52634856; 1998-007722 JF - Open-File Report - U. S. Geological Survey AU - Wahl, Ronald R AU - Sawyer, David A AU - Minor, Scott A AU - Carr, Michael D AU - Cole, James C AU - Swadley, W C AU - Laczniak, Randell J AU - Warren, Richard G AU - Green, Katryn S AU - Engle, Colin M Y1 - 1997 PY - 1997 DA - 1997 SP - 49 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - digital data KW - spatial data KW - cartography KW - areal geology KW - Pahute Mesa Quadrangle KW - Nevada Test Site KW - digital cartography KW - Beatty Quadrangle KW - data bases KW - USGS KW - Nevada KW - 14:Geologic maps UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52634856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Digital+geologic+map+database+of+the+Nevada+Test+Site+area%2C+Nevada&rft.au=Wahl%2C+Ronald+R%3BSawyer%2C+David+A%3BMinor%2C+Scott+A%3BCarr%2C+Michael+D%3BCole%2C+James+C%3BSwadley%2C+W+C%3BLaczniak%2C+Randell+J%3BWarren%2C+Richard+G%3BGreen%2C+Katryn+S%3BEngle%2C+Colin+M&rft.aulast=Wahl&rft.aufirst=Ronald&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-97-0140/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 127 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - areal geology; Beatty Quadrangle; cartography; data bases; digital cartography; digital data; Nevada; Nevada Test Site; Pahute Mesa Quadrangle; spatial data; United States; USGS ER - TY - JOUR T1 - Convulsive geologic events and the origin of diamictite in the Spechty Kopf Formation in northeastern Pennsylvania AN - 52608697; 1998-034025 JF - Guidebook for the Annual Field Conference of Pennsylvania Geologists AU - Sevon, William D AU - Woodrow, Donald L AU - Costolnick, David E AU - Richardson, John B AU - Attrep, Moses, Jr A2 - Inners, Jon D. Y1 - 1997 PY - 1997 DA - 1997 SP - 34 EP - 60 PB - [Field Conference of Pennsylvania Geologists], [Harrisburg, PA] VL - 62 SN - 0375-5630, 0375-5630 KW - United States KW - Mississippian KW - lithostratigraphy KW - lower Paleocene KW - Lower Mississippian KW - Cretaceous KW - sandstone KW - platinum group KW - Upper Cretaceous KW - iridium KW - laminite KW - Cenozoic KW - bedding KW - sedimentary rocks KW - pollen KW - mineral composition KW - diamictite KW - Paleocene KW - geochemical anomalies KW - thickness KW - northeastern Pennsylvania KW - miospores KW - depositional environment KW - Catskill Formation KW - sedimentary structures KW - red beds KW - Spechty Kopf Formation KW - mudstone KW - textures KW - Paleozoic KW - Carboniferous KW - Paleogene KW - Mesozoic KW - conglomerate KW - provenance KW - Tertiary KW - planar bedding structures KW - floral studies KW - Pocono Formation KW - color KW - metals KW - K-T boundary KW - palynomorphs KW - petrography KW - stratigraphic boundary KW - Pennsylvania KW - clastic rocks KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52608697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+for+the+Annual+Field+Conference+of+Pennsylvania+Geologists&rft.atitle=Convulsive+geologic+events+and+the+origin+of+diamictite+in+the+Spechty+Kopf+Formation+in+northeastern+Pennsylvania&rft.au=Sevon%2C+William+D%3BWoodrow%2C+Donald+L%3BCostolnick%2C+David+E%3BRichardson%2C+John+B%3BAttrep%2C+Moses%2C+Jr&rft.aulast=Sevon&rft.aufirst=William&rft.date=1997-01-01&rft.volume=62&rft.issue=&rft.spage=34&rft.isbn=&rft.btitle=&rft.title=Guidebook+for+the+Annual+Field+Conference+of+Pennsylvania+Geologists&rft.issn=03755630&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 62nd annual field conference of Pennsylvania geologists N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 74 N1 - PubXState - PA] N1 - Document feature - illus. incl. 4 plates N1 - Last updated - 2012-06-07 N1 - CODEN - APGGBK N1 - SubjectsTermNotLitGenreText - bedding; Carboniferous; Catskill Formation; Cenozoic; clastic rocks; color; conglomerate; Cretaceous; depositional environment; diamictite; floral studies; geochemical anomalies; iridium; K-T boundary; laminite; lithostratigraphy; Lower Mississippian; lower Paleocene; Mesozoic; metals; mineral composition; miospores; Mississippian; mudstone; northeastern Pennsylvania; Paleocene; Paleogene; Paleozoic; palynomorphs; Pennsylvania; petrography; planar bedding structures; platinum group; Pocono Formation; pollen; provenance; red beds; sandstone; sedimentary rocks; sedimentary structures; Spechty Kopf Formation; stratigraphic boundary; Tertiary; textures; thickness; United States; Upper Cretaceous ER - TY - JOUR T1 - Microbial diversity in ocean, surface and subsurface environments AN - 52599063; 1998-036294 JF - Reviews in Mineralogy AU - Barns, Susan M AU - Nierzwicki-Bauer, Sandra A A2 - Banfield, Jillian F. A2 - Nealson, Kenneth H. Y1 - 1997 PY - 1997 DA - 1997 SP - 35 EP - 79 PB - Mineralogical Society of America, Washington, DC VL - 35 SN - 0275-0279, 0275-0279 KW - United States KW - thallophytes KW - programs KW - Plantae KW - biodiversity KW - Washington KW - communities KW - eukaryotes KW - Archaea KW - geomicrobiology KW - biochemistry KW - GEMHEX KW - Hanford Site KW - biologic evolution KW - life origin KW - case studies KW - marine environment KW - bacteria KW - microorganisms KW - 09:Paleobotany KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52599063?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy&rft.atitle=Microbial+diversity+in+ocean%2C+surface+and+subsurface+environments&rft.au=Barns%2C+Susan+M%3BNierzwicki-Bauer%2C+Sandra+A&rft.aulast=Barns&rft.aufirst=Susan&rft.date=1997-01-01&rft.volume=35&rft.issue=&rft.spage=35&rft.isbn=0939950456&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 221 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - Archaea; bacteria; biochemistry; biodiversity; biologic evolution; case studies; communities; eukaryotes; GEMHEX; geomicrobiology; Hanford Site; life origin; marine environment; microorganisms; Plantae; programs; thallophytes; United States; Washington ER - TY - JOUR T1 - Mineralogic speciation of metal contaminants at LANL; controls on bioavailability and water concentrations AN - 52593488; 1998-043776 AB - Understanding mineralogic speciation of metals in soils is important for 3 reasons: (1) implementing natural attenuation of metals as a remedial alternative requires an understanding of the thermodynamics and dissolution/precipitation kinetics of phases that immobilize metals; (2) metal speciation determines bioaccessibility in humans and animals; and (3) metal speciation influences metal abundances in surface and groundwaters. Ba and Pb mineralogic speciation in both contaminated and non-contaminated soils and tuff at Los Alamos National Lab (LANL) were determined using SEM, EMP, and other methods. Ba is a contaminant at many sites at LANL because Ba-nitrate was a component of explosives used in early nuclear weapons. Ba contamination in soils ranges to 40 000 ppm and Ba concentrations in surface waters range to 6 ppm. Ba species in contaminated soils include: witherite, barite, and a Ba-Fe silicate. Witherite is the most abundant Ba mineral. Ba-nitrate has reacted with components in the environment to produce these less soluble Ba minerals. Ba-Fe silicate forms as a reaction product between steel or magnetite and Ba-contaminated waters. Ba abundances in surface waters are relatively constant over extensive (>1000 meter) reaches, suggesting buffering equilibria with Ba-phases. Speciation/solubility calculations for contaminated surface waters show that they are oversaturated with barite and witherite. Precipitation of these phases is reducing concentrations in contaminated surface waters. Pb is also a contaminant at many sites at LANL. Pb abundances in some groundwaters are above EPA-mandated levels. Pb occurs as galena, cerussite, and pyromorphite within the Bandelier tuff and as (Mn, Pb)-oxide and cerussite in contaminated soils. Bioaccessibility testing shows a correlation between mineral speciation and bioaccessibility. Speciation/solubility calculations suggest that high Pb levels in some groundwaters may be due to naturally occurring Pb-phases, rather than to contamination. JF - Abstracts with Programs - Geological Society of America AU - Hickmott, Donald D AU - McMillan, Seth C AU - Sharp, Donna M AU - Abell, Russ AU - Eppler, Aaron AU - George, Michael AU - Ruby, Michael V AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 356 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - lead KW - bioavailability KW - New Mexico KW - Los Alamos County New Mexico KW - solution KW - ground water KW - Cenozoic KW - controls KW - mineral composition KW - Bandelier Tuff KW - barium KW - thermodynamic properties KW - kinetics KW - water KW - soils KW - alkaline earth metals KW - Quaternary KW - pollutants KW - surface water KW - pollution KW - solubility KW - Los Alamos National Laboratory KW - precipitation KW - metals KW - Pleistocene KW - SEM data KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52593488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Mineralogic+speciation+of+metal+contaminants+at+LANL%3B+controls+on+bioavailability+and+water+concentrations&rft.au=Hickmott%2C+Donald+D%3BMcMillan%2C+Seth+C%3BSharp%2C+Donna+M%3BAbell%2C+Russ%3BEppler%2C+Aaron%3BGeorge%2C+Michael%3BRuby%2C+Michael+V%3BAnonymous&rft.aulast=Hickmott&rft.aufirst=Donald&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=356&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Bandelier Tuff; barium; bioavailability; Cenozoic; chemical fractionation; controls; ground water; kinetics; lead; Los Alamos County New Mexico; Los Alamos National Laboratory; metals; mineral composition; New Mexico; Pleistocene; pollutants; pollution; precipitation; Quaternary; SEM data; soils; solubility; solution; surface water; thermodynamic properties; United States; water ER - TY - JOUR T1 - Natural background geochemistry of the Bandelier Tuff and other rock units, Los Alamos, New Mexico AN - 52593075; 1998-043736 AB - Background elemental concentrations were determined for inorganic constituents of the Bandelier Tuff as part of Environmental Restoration investigations conducted at Los Alamos National Laboratory. A total of 251 bulk-rock samples was collected from outcrops across the Laboratory and borehole 49-2-700-1 at TA-49. Total elemental concentrations were determined for 208 samples by x-ray fluorescence and for 38 samples by instrumental neutron activation analyses to determine the chemical variability of rock units on the Pajarito Plateau. Then, based on the XRF and INAA results, a representative suite of 106 samples was selected for analyses by EPA SW846 methods for their leachable concentrations of inorganic analytes by inductively coupled plasma mass spectrometry, inductively coupled plasma emission spectroscopy, electrothermal vapor atomic absorption spectroscopy, or ion chromatography. Upper tolerance limit s (UTLs) were calculated for all inorganic elements, except for iron and sulfate which have unusual distributions. For most elements, the background screening value for inorganic analytes is the 95th percentile UTL, which is the 95% upper confidence limit of the 95th percentile of the data distribution. Maximum detected concentrations were used to define background screening values for the rarely detected elements antimony, arsenic, chromium, copper, nickel, radium, silver, tantalum, and thallium as well as for iron and sulfate. Background screening values for naturally occurring potassium, thorium, and uranium isotopes are calculated from total elemental concentration data. The spatial coverage and population size of background chemistry samples are considered adequate for defining background screening values for subunits within the Tshirege Member of the Bandelier Tuff. These tuffs are the most widespread rock units on the Pajarito Plateau and make up the bedrock at the majority of the Laboratory's potential release sites. We recommend additional characterization of the Otowi Member of the Bandelier Tuff because so few samples of this unit are included in the present data set. JF - Abstracts with Programs - Geological Society of America AU - Broxton, David E AU - Ryti, Randall T AU - Reneau, Steven L AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 434 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - neutron activation analysis data KW - volcanic rocks KW - igneous rocks KW - Pajarito Plateau KW - mass spectra KW - New Mexico KW - Los Alamos County New Mexico KW - Cenozoic KW - Tshirege Member KW - Bandelier Tuff KW - ion chromatography KW - X-ray fluorescence spectra KW - outcrops KW - tuff KW - spectra KW - chemical composition KW - geochemistry KW - Quaternary KW - Los Alamos National Laboratory KW - inorganic materials KW - pyroclastics KW - boreholes KW - Pleistocene KW - Otowi Member KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52593075?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Natural+background+geochemistry+of+the+Bandelier+Tuff+and+other+rock+units%2C+Los+Alamos%2C+New+Mexico&rft.au=Broxton%2C+David+E%3BRyti%2C+Randall+T%3BReneau%2C+Steven+L%3BAnonymous&rft.aulast=Broxton&rft.aufirst=David&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=434&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; boreholes; Cenozoic; chemical composition; geochemistry; igneous rocks; inorganic materials; ion chromatography; Los Alamos County New Mexico; Los Alamos National Laboratory; mass spectra; neutron activation analysis data; New Mexico; Otowi Member; outcrops; Pajarito Plateau; Pleistocene; pyroclastics; Quaternary; spectra; Tshirege Member; tuff; United States; volcanic rocks; X-ray fluorescence spectra ER - TY - JOUR T1 - Microbial dissolution of Fe oxides in oxic environments AN - 52591488; 1998-043771 AB - Although abundant, iron (Fe) is not readily available to living systems at physiological pH in oxic environments, where the solubility product of Fe oxides ranges from 10-39 to 10-44. Yet, the acquisition of Fe in oxic environments is an absolute requirement for all living cells because Fe is necessary for a variety of metabolic functions. It has been assumed that microorganisms accomplish this acquisition through the production of Fe specific chelating ligands, called siderophores. While siderophores do have very high formation constants for Fe(III), there is little quantitative discussion of siderophore mediated dissolution of Fe oxides in the literature. Reported in this paper are the results of series of investigations designed to understand the mechanism(s) of Fe acquisition by a strict aerobe, Pseudomonas sp. Iron was supplied either as synthetic geothite or hematite in a defined, Fe-free succinate medium, and microbial growth was monitored photometrically for 8 days (room emp., 50 rpm). At the completion of the experiment, the Fe oxides were removed, rinsed, and examined using Atomic Force Microscopy (Patricia Maurice, Kent State University); and, siderophore produced by this microorganism is being used for dissolution studies (Garrison Sposito, UC Berkeley). The results of this work have demonstrated clearly that this microorganism was able to obtain Fe from Fe oxides. Interestingly, although growth rates were affected by surface area, bacterial attachment to the Fe oxide agglomerates appeared to be selective. Based on growth rates, this organism effected Fe dissolution at approximately 8.2X10 (super -6) mol m-2 h-1, and early results of the siderophore promoted dissolution experiments correspond to area based Fe dissolution rates of 1.0X10 (super -8) mol m-2 h-2. AFM analysis of reacted Fe oxide surfaces revealed bacterial attachment, attachment of microbial filaments, and selected dissolution of Fe oxide particles. These results demonstrate that this microorganism is employing more than ligand promoted dissolution to acquire Fe from Fe oxides. JF - Abstracts with Programs - Geological Society of America AU - Hersman, Larry E AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 55 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - iron oxides KW - metabolism KW - mechanism KW - solubility KW - solution KW - iron KW - aerobic environment KW - ligands KW - atomic force microscopy data KW - metals KW - oxides KW - pH KW - particles KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52591488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Microbial+dissolution+of+Fe+oxides+in+oxic+environments&rft.au=Hersman%2C+Larry+E%3BAnonymous&rft.aulast=Hersman&rft.aufirst=Larry&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aerobic environment; atomic force microscopy data; iron; iron oxides; ligands; mechanism; metabolism; metals; microorganisms; oxides; particles; pH; solubility; solution ER - TY - JOUR T1 - Southward splaying and termination of the Rendija Canyon Fault, Pajarito Plateau, New Mexico AN - 52577305; 1998-055943 JF - Abstracts with Programs - Geological Society of America AU - Lavine, Alexis AU - Gardner, Jamie N AU - Vaniman, Dave AU - Woldegabriel, Giday AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 259 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Rendija Canyon Fault KW - Quaternary KW - Pajarito Plateau KW - New Mexico KW - Los Alamos County New Mexico KW - displacements KW - deformation KW - Los Alamos New Mexico KW - Cenozoic KW - Tshirege Member KW - rupture KW - Bandelier Tuff KW - Pleistocene KW - Jemez Mountains KW - Pajarito Fault KW - Los Alamos Canyon KW - north-central New Mexico KW - faults KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52577305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Southward+splaying+and+termination+of+the+Rendija+Canyon+Fault%2C+Pajarito+Plateau%2C+New+Mexico&rft.au=Lavine%2C+Alexis%3BGardner%2C+Jamie+N%3BVaniman%2C+Dave%3BWoldegabriel%2C+Giday%3BAnonymous&rft.aulast=Lavine&rft.aufirst=Alexis&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; Cenozoic; deformation; displacements; faults; Jemez Mountains; Los Alamos Canyon; Los Alamos County New Mexico; Los Alamos New Mexico; New Mexico; north-central New Mexico; Pajarito Fault; Pajarito Plateau; Pleistocene; Quaternary; Rendija Canyon Fault; rupture; Tshirege Member; United States ER - TY - JOUR T1 - Stratigraphic and structural controls on ground-water flow in the Espanola Basin, Rio Grande Rift, NM AN - 52577029; 1998-051515 AB - The Espanola Basin, a major basin in the Rio Grande Rift, is located in northern New Mexico. It is one of the basins, aligned north-south from central Colorado to southern New Mexico and Chihuahua, Mexico, which together make up the Rio Grande Rift. It is bounded on the south by the La Bajada fault, on the north by a basement ridge which extends northwest from the Picuris Range through an isolated Precambrian exposure to the La Madera area. It is bounded on the west by the Nacimiento uplift and on the east by the Sangre de Cristo Mountains. The western boundary is obscured by a pile of Cenozoic volcanics comprising the Pajarito Plateau. The nature of the eastern boundary has been controversial but published data indicate that the boundary is a fault-zone boundary. The fault system is complex with parallel north-south faults, cross faults, horsts, grabens, and rotated fault blocks. Individual faults may form either conduits or barriers to ground-water flow within the basin. Basin fill sediments consist of the Santa Fe Group, which in turn consists of the Tesuque Formation and the overlying Chamita Formation. The Tesuque is further subdivided into five members. The Santa Fe Group contains the major drinking-water aquifer underlying Los Alamos, NM and the major aquifer in the Espanola Basin. Currently, there is no basin-wide, hydrogeologically-based, 3-D stratigraphic model of the basin. We are examining well logs (including geophysical logs), outcrop patterns, and remote sensing data from aircraft and satellites, as well as water quality and archival data from the basin (including the Pajarito Plateau) with the purposes of (1) producing a generalized 3-D stratigraphic model of the basin, (2) identifying stratigraphic intervals of high hydraulic conductivity, (3) determining the influences of faults on ground-water flow into and within the basin. We intend to provide a framework for geochemical and physical-flow modeling for the basin. JF - Abstracts with Programs - Geological Society of America AU - Farmer, Thomas AU - Keating, Elizabeth H AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 132 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Sangre de Cristo Mountains KW - Pajarito Plateau KW - New Mexico KW - block structures KW - Picuris Range KW - drinking water KW - ground water KW - Rio Grande Rift KW - Cenozoic KW - horsts KW - Santa Fe Group KW - movement KW - outcrops KW - Tesuque Formation KW - geochemistry KW - faults KW - Espanola Basin KW - systems KW - North America KW - patterns KW - well logs KW - three-dimensional models KW - northern New Mexico KW - La Bajada Fault KW - structural controls KW - U. S. Rocky Mountains KW - satellite methods KW - Miocene KW - grabens KW - aquifers KW - models KW - Tertiary KW - Neogene KW - Pliocene KW - Chamita Formation KW - aerial photography KW - Rocky Mountains KW - remote sensing KW - 16:Structural geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52577029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Stratigraphic+and+structural+controls+on+ground-water+flow+in+the+Espanola+Basin%2C+Rio+Grande+Rift%2C+NM&rft.au=Farmer%2C+Thomas%3BKeating%2C+Elizabeth+H%3BAnonymous&rft.aulast=Farmer&rft.aufirst=Thomas&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aerial photography; aquifers; block structures; Cenozoic; Chamita Formation; drinking water; Espanola Basin; faults; geochemistry; grabens; ground water; horsts; La Bajada Fault; Miocene; models; movement; Neogene; New Mexico; North America; northern New Mexico; outcrops; Pajarito Plateau; patterns; Picuris Range; Pliocene; remote sensing; Rio Grande Rift; Rocky Mountains; Sangre de Cristo Mountains; Santa Fe Group; satellite methods; structural controls; systems; Tertiary; Tesuque Formation; three-dimensional models; U. S. Rocky Mountains; United States; well logs ER - TY - JOUR T1 - Undergraduates learn geophysical research by immersion at SAGE (Summer of Applied Geophysical Experience) AN - 52576965; 1998-051878 AB - As SAGE celebrated its 15th year of operation in 1997, 26 undergraduate and graduate students were engaged in hands-on studies of: 1) the structure and tectonics of the Rio Grande rift, 2) an environmental restoration site at Los Alamos National Laboratory (LANL), and 3) a groundwater problem near Santa Fe, New Mexico. Students learned and used the techniques of seismic reflection and refraction, gravity, magnetics, electrical resistivity, and electromagnetics. Unique aspects of SAGE are: 1) undergraduate and graduate students work closely with faculty and industry visitors in a "co-workers" environment, 2) "research-scale" field studies are performed, 3) students immediately begin data processing and modeling using PCs and workstations, 4) basic principles are constantly reinforced by editing data that violate nonphysical behavior, 5) multiple geophysical data sets are integrated into a consistent geological interpretation, 6) new geophysical data builds upon results from previous years, and 7) oral and written presentations are made using professional formats. SAGE is sponsored by the LANL Branch of the Institute of Geophysics and Planetary Physics of the University of California and is partially supported by NSF's Research Experiences for Undergraduates Program. Success of the program is documented by the high percentage of SAGE undergraduates who go on to graduate school. JF - Abstracts with Programs - Geological Society of America AU - Jiracek, George R AU - Baldridge, W Scott AU - Biehler, Shawn AU - Braile, Lawrence W AU - Ferguson, John AU - Gilpin, Bernard AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 367 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - North America KW - geophysical surveys KW - geophysical methods KW - electrical methods KW - magnetic methods KW - reflection methods KW - New Mexico KW - Los Alamos County New Mexico KW - resistivity KW - Los Alamos National Laboratory KW - education KW - research KW - Summer of Applied Geophysical Experience KW - seismic methods KW - ground water KW - Rio Grande Rift KW - gravity methods KW - college-level education KW - Santa Fe New Mexico KW - surveys KW - Santa Fe County New Mexico KW - SAGE Program KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52576965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Undergraduates+learn+geophysical+research+by+immersion+at+SAGE+%28Summer+of+Applied+Geophysical+Experience%29&rft.au=Jiracek%2C+George+R%3BBaldridge%2C+W+Scott%3BBiehler%2C+Shawn%3BBraile%2C+Lawrence+W%3BFerguson%2C+John%3BGilpin%2C+Bernard%3BAnonymous&rft.aulast=Jiracek&rft.aufirst=George&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - college-level education; education; electrical methods; geophysical methods; geophysical surveys; gravity methods; ground water; Los Alamos County New Mexico; Los Alamos National Laboratory; magnetic methods; New Mexico; North America; reflection methods; research; resistivity; Rio Grande Rift; SAGE Program; Santa Fe County New Mexico; Santa Fe New Mexico; seismic methods; Summer of Applied Geophysical Experience; surveys; United States ER - TY - JOUR T1 - Heterogeneous magmatic systems; evidence from a mixed tephra deposit, Middle Awash region, southern Afar Rift, Ethiopia AN - 52575075; 1998-055936 AB - The Middle Awash region of the southern Afar Rift contains a stratigraphic record of late Miocene to Recent mafic and silicic volcanism manifested as lava and pyroclastic flows and as unimodal, bimodal and mixed airfall tephra horizons. The volcanic lithologies often are interbedded with fossiliferous fluvial-lacustrine sedimentary deposits that are host to important vertebrate fossils, including the oldest identified hominid, Ardipithecus ramidus. The focus of this abstract is an airfall tephra complex dated at 4.4 Ma. While this unit serves as a key chronostratigraphic marker horizon within the hominid-bearing sediments, its mixed shard population provides insight into petrogenesis and magmatic evolution within a complex rift setting. At its type locality, the mixed tephra is up to 2 m thick and consists of a white to gray vitric ash that grades upward to a well-sorted pumiceous zone. Petrographic observations based on optical and scanning electron microscopy indicate that the mixed tephra is comprised of a comagmatic assemblage of mafic and silicic end member shard populations and a spectrum of "intermediate" glass. Microprobe major element chemical analyses confirm these observations and show the end member populations to have anhydrous silica and total iron contents of 78 to 56 and 2 to 14 wt%, respectively. Bulk silicic end member major element analyses by direct current argon plasma spectrometry agree with the microprobe analysis suggesting that the compositional variation observed is primary in origin. Bulk analyses of the end member mafic populations are in progress, as are trace and rare-earth element analyses of both end member populations. The "intermediate" glass is volumetrically minor in comparison with the mafic and silicic shard populations and generally is characterized by silica contents between 60 and 65 wt% anhydrous. Major element relationships defined by the entire spectrum of shard compositions suggest that the "intermediate" compositions are a product of magma mixing. Furthermore, the minimal volume of this "intermediate" compositional spectrum suggests that the magma mixing probably occurred during eruption, possibly as a result of basalt injection into an evolved magma reservoir. The implications of this preliminary model will be discussed in the context of the volcanic and tectonic evolution of the Afar Rift. JF - Abstracts with Programs - Geological Society of America AU - Larson, T L AU - Hart, W K AU - Woldegabriel, G AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 393 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - volcanic rocks KW - glasses KW - igneous rocks KW - East Africa KW - Afar KW - Cenozoic KW - Theria KW - Ethiopia KW - major elements KW - volcanism KW - mixing KW - rare earths KW - trace elements KW - Eutheria KW - Chordata KW - Quaternary KW - Mammalia KW - Primates KW - Miocene KW - Hominidae KW - pyroclastics KW - Tertiary KW - Neogene KW - metals KW - magmas KW - lacustrine environment KW - Pliocene KW - petrography KW - Africa KW - Vertebrata KW - fluvial environment KW - Tetrapoda KW - SEM data KW - Middle Awash KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52575075?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Heterogeneous+magmatic+systems%3B+evidence+from+a+mixed+tephra+deposit%2C+Middle+Awash+region%2C+southern+Afar+Rift%2C+Ethiopia&rft.au=Larson%2C+T+L%3BHart%2C+W+K%3BWoldegabriel%2C+G%3BAnonymous&rft.aulast=Larson&rft.aufirst=T&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=393&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Afar; Africa; Cenozoic; Chordata; East Africa; Ethiopia; Eutheria; fluvial environment; glasses; Hominidae; igneous rocks; lacustrine environment; magmas; major elements; Mammalia; metals; Middle Awash; Miocene; mixing; Neogene; petrography; Pliocene; Primates; pyroclastics; Quaternary; rare earths; SEM data; Tertiary; Tetrapoda; Theria; trace elements; Vertebrata; volcanic rocks; volcanism ER - TY - JOUR T1 - Effects of latent heat of crystallization on contact metamorphism; a critical factor for modeling natural systems AN - 52574278; 1998-051445 JF - Abstracts with Programs - Geological Society of America AU - Dutrow, B AU - Henry, D AU - Christensen, C AU - Gable, C AU - Travis, B AU - Heydari, E AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 93 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - models KW - contact metamorphism KW - geologic thermometry KW - host rocks KW - crystallization KW - mineral assemblages KW - metasomatism KW - metamorphism KW - two-dimensional models KW - temperature KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52574278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Effects+of+latent+heat+of+crystallization+on+contact+metamorphism%3B+a+critical+factor+for+modeling+natural+systems&rft.au=Dutrow%2C+B%3BHenry%2C+D%3BChristensen%2C+C%3BGable%2C+C%3BTravis%2C+B%3BHeydari%2C+E%3BAnonymous&rft.aulast=Dutrow&rft.aufirst=B&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - contact metamorphism; crystallization; geologic thermometry; host rocks; metamorphism; metasomatism; mineral assemblages; models; temperature; two-dimensional models ER - TY - JOUR T1 - Can terrestrial cosmogenic Be-10 Be measured in whole rock samples to decipher surface exposure histories? AN - 52573290; 1998-052000 AB - Be-10 (and Al-26) measurements for surface exposure histories are currently made on quartz separates. The use of whole rock samples in lieu of high purity mineral separates would minimize sample preparation, and consequently preparation time and expense. The only cosmogenic nuclide produced in situ measured in whole rock is Cl-36, where the likelihood of meteoric contamination is low because the production rate in the atmosphere is small. High concentrations of stable aluminum render the measurement of cosmogenic Al-26 impractical in nearly all whole-rock samples. Cosmogenic Be-10 seems a good candidate for whole-rock analysis, but its high (1000) atmospheric/terrestrial (quartz) production ratio and the adherence of meteoric Be-10 to clay and other sheet silicate surfaces has discouraged any previous studies. We tested whole rock measurements on two suites of samples. In 4 aphanitic plagioclase-rich-granitic gneiss, granodiorite, and quartz-diorite boulders from the Wind River Range, Wyoming, we measured Be-10 in pure quartz and in a chemically leached (20-50% dissolved during leaching) whole rock phase. The boulders ( approximately 11 ka old) show various degrees of chemical weathering, including grus, gnammas, and rillen. Be-10 concentrations in the whole rock splits are 1.2 to 3.1 times higher than in the quartz, with the softest, most weathered rocks yielding the highest concentration. We also measured Be-10 in >20 early- to late-Pleistocene whole rock basalt surfaces from the arid US Southwest. These samples were completely encased by a thick desert varnish and show no indication of weathering. Exposure ages calculated from the whole rock basalts are internally consistent and concordant with existing independent chronologies and geomorphology, suggesting that whole rock Be-10 may be reliable in rocks with low degrees of weathering. We will report the results of an ongoing experiment to determine how Be-10 concentrations in these basalts are affected by the amount of leaching. JF - Abstracts with Programs - Geological Society of America AU - Klein, J AU - Lawn, B AU - Gosse, J AU - Harrington, C AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 346 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - silicates KW - silica minerals KW - isotopes KW - cosmogenic elements KW - exposure age KW - Cenozoic KW - Al-26 KW - radioactive isotopes KW - whole rock KW - dates KW - aluminum KW - framework silicates KW - chemical weathering KW - alkaline earth metals KW - Quaternary KW - in situ KW - Be-10 KW - weathering KW - measurement KW - sample preparation KW - metals KW - quartz KW - leaching KW - beryllium KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52573290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Can+terrestrial+cosmogenic+Be-10+Be+measured+in+whole+rock+samples+to+decipher+surface+exposure+histories%3F&rft.au=Klein%2C+J%3BLawn%2C+B%3BGosse%2C+J%3BHarrington%2C+C%3BAnonymous&rft.aulast=Klein&rft.aufirst=J&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=346&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Be-10; beryllium; Cenozoic; chemical weathering; cosmogenic elements; dates; exposure age; framework silicates; in situ; isotopes; leaching; measurement; metals; quartz; Quaternary; radioactive isotopes; sample preparation; silica minerals; silicates; weathering; whole rock ER - TY - JOUR T1 - Natural background geochemistry and statistical analysis of selected soil profiles, Los Alamos, New Mexico AN - 52566397; 1998-057194 AB - Background data for soils are required to distinguish between contaminated and non-contaminated soils at Los Alamos National Laboratory (LANL), Los Alamos, New Mexico. Wilcoxon rank sum test and box plots are used to determine if there is a significant chemical difference between background and site soils. Values of upper tolerance limits (UTLs) at the 95th percentile and 95th confidence interval (mean + standard deviation X k-0.95, 0.95) for naturally-occurring metals and nonmetals are compared with site data. Results of these multidisciplinary investigations form the basis for statistical risk analysis. Site chemical data exceeding background UTL data may warrant further investigations to determine the nature, extent, and mobility of contaminants. Approximately 250 background soil samples have been collected from A, B, and C master horizons and from fill material lining fractures. Soil samples have been digested with nitric acid at pH 1 and analyzed for 24 analytes using EPA SW846 methods. Background-elemental concentrations in soils at LANL vary significantly with parent material, the degree of soil development, and other factors. Well-developed soils containing B horizons have higher concentrations of ferric oxyhydroxide, clay minerals, and calcium carbonate than weakly developed soils. The B horizons generally contain higher concentrations of trace elements (As, Be, Fe) relative to A and C horizons. Adsorption of trace elements onto mineral-solid surfaces present within the B horizons is an important process for concentrating As, Be, Ni, and other elements. Horizon-specific bivariate plots of Fe versus several trace elements (As, Be, Cr, Ni) are used to infer background at sites where background cannot be directly determined. The C horizons, derived mainly from alluvial/colluvial material and the Bandelier Tuff, contain higher concentrations of natural Th and U than the A and B horizons, suggesting that these two actinides have not been significantly leached from primary minerals (zircon and chevkinite). In most instances, background Th and U concentrations can be easily distinguished from contaminated sites at LANL. JF - Abstracts with Programs - Geological Society of America AU - Longmire, Patrick A AU - McDonald, Eric V AU - Reneau, Steven L AU - Ryti, Randall T AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 434 EP - 435 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - soils KW - soil profiles KW - Quaternary KW - background level KW - statistical analysis KW - pollution KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos New Mexico KW - Cenozoic KW - Bandelier Tuff KW - metals KW - Pleistocene KW - horizons KW - geochemistry KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52566397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Natural+background+geochemistry+and+statistical+analysis+of+selected+soil+profiles%2C+Los+Alamos%2C+New+Mexico&rft.au=Longmire%2C+Patrick+A%3BMcDonald%2C+Eric+V%3BReneau%2C+Steven+L%3BRyti%2C+Randall+T%3BAnonymous&rft.aulast=Longmire&rft.aufirst=Patrick&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=434&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; background level; Bandelier Tuff; Cenozoic; geochemistry; horizons; Los Alamos County New Mexico; Los Alamos New Mexico; metals; New Mexico; Pleistocene; pollution; Quaternary; soil profiles; soils; statistical analysis; United States ER - TY - JOUR T1 - Desert soil-landscape evolution in basaltic tephra fall deposits AN - 52565393; 1998-057319 AB - Studies of soils in the Cima volcanic field, Mojave Desert, California and the Yucca Mountain region, southern Great Basin, Nevada, help determine the timing of volcanic eruptions in the Quaternary and interpretation of volcanic landform evolution and eruption models for volcanic centers. Many aspects of soil formation in tephra fall deposits are similar to those observed on volcanic flows and alluvial fans of arid regions: development is cumulic (accretionary), with entrapment of eolian dust and translocation of materials below a stone pavement. Expansible clay in dust is conducive for cycles of crack formation, plasma translocation and crack closure, which favors dilatant pedogenesis. Shallow accumulation of carbonates and soluble salts reflect limited leaching in the presently hot, arid climate. Despite the mafic parent material and abundant glass, little chemical weathering is observed. Aspects of soil clay mineralogy reflect a largely external rather than authigenetic origin. Dust incorporation in the tephra parent material is pervasive, as shown by the presence of dust-derived plasma in tephra microvesicles. Multielement mixing models imply 10% dust contituents in otherwise apparently unaltered tephra of lower soil horizons. Radiocarbon and TL dating and stable isotopic studies of these soils also help elucidate patterns of pedogenesis. Soil development in tephra differs from that on volcanic flows and fans: In some circumstances (e.g., channel bed infiltration in dissected tephra blankets, locally increased surface runoff from topographic highs), the large permeability of tephra favors interflow that is concentrated along laterally persistent, stratigraphic heterogeneities. This causes formation of features that strongly resemble buried soils. The low permeability of the vesicular horizon contributes to surface instability and limited soil development by promoting increased surface erosion. The presence of truncated, plasma-filled krotovina are evidence of times of surface erosion. The occasional presence of dense bombs fosters surface stability and development of moderately well developed soils. The presence of weak soils on virtually all slopes, however, demonstrates the efficient nature of tephra as a dust trap and the currently high dust influx, the latter probably characteristic of much of the Holocene and latest Pleistocene. JF - Abstracts with Programs - Geological Society of America AU - McFadden, Les D AU - Amundson, Ron G AU - Crowe, Bruce M AU - Perry, Frank V AU - Forman, Steve AU - Wells, Steve G AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 140 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - eolian features KW - volcanic rocks KW - Basin and Range Province KW - igneous rocks KW - Holocene KW - deserts KW - upper Pleistocene KW - Cenozoic KW - California KW - Mojave Desert KW - horizons KW - Cima volcanic field KW - Yucca Mountain KW - San Bernardino County California KW - Nevada KW - soils KW - North America KW - pedogenesis KW - Quaternary KW - Great Basin KW - landform evolution KW - Nye County Nevada KW - southern Great Basin KW - models KW - pyroclastics KW - Southern California KW - eruptions KW - Pleistocene KW - landscapes KW - permeability KW - 23:Geomorphology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52565393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Desert+soil-landscape+evolution+in+basaltic+tephra+fall+deposits&rft.au=McFadden%2C+Les+D%3BAmundson%2C+Ron+G%3BCrowe%2C+Bruce+M%3BPerry%2C+Frank+V%3BForman%2C+Steve%3BWells%2C+Steve+G%3BAnonymous&rft.aulast=McFadden&rft.aufirst=Les&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=140&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Basin and Range Province; California; Cenozoic; Cima volcanic field; deserts; eolian features; eruptions; Great Basin; Holocene; horizons; igneous rocks; landform evolution; landscapes; models; Mojave Desert; Nevada; North America; Nye County Nevada; pedogenesis; permeability; Pleistocene; pyroclastics; Quaternary; San Bernardino County California; soils; Southern California; southern Great Basin; United States; upper Pleistocene; volcanic rocks; Yucca Mountain ER - TY - JOUR T1 - Paleoclimate interpretations using calcite delta (super 18) O values AN - 52558864; 1998-065673 JF - Abstracts with Programs - Geological Society of America AU - Newman, Brent D AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 35 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - soils KW - isotope fractionation KW - pedogenesis KW - Quaternary KW - oxygen KW - lower Holocene KW - isotopes KW - isotope ratios KW - O-18/O-16 KW - paleoclimatology KW - Holocene KW - stable isotopes KW - climate change KW - variations KW - calcite KW - upper Pleistocene KW - Cenozoic KW - paleotemperature KW - Pleistocene KW - interpretation KW - carbonates KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52558864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Paleoclimate+interpretations+using+calcite+delta+%28super+18%29+O+values&rft.au=Newman%2C+Brent+D%3BAnonymous&rft.aulast=Newman&rft.aufirst=Brent&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - Number of references - 1 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - calcite; carbonates; Cenozoic; climate change; Holocene; interpretation; isotope fractionation; isotope ratios; isotopes; lower Holocene; O-18/O-16; oxygen; paleoclimatology; paleotemperature; pedogenesis; Pleistocene; Quaternary; soils; stable isotopes; upper Pleistocene; variations ER - TY - JOUR T1 - Chlorine-36 measurements define structural controls on fast hydrologic pathways at Yucca Mountain, Nevada AN - 52555195; 1998-066762 JF - Abstracts with Programs - Geological Society of America AU - Sweetkind, D S AU - Fabryka-Martin, J T AU - Flint, A L AU - Levy, S S AU - Wolfsberg, A V AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 308 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - isotopes KW - halogens KW - radioactive waste KW - ground water KW - Cenozoic KW - spatial distribution KW - fractures KW - radioactive isotopes KW - pyroclastic flows KW - movement KW - thickness KW - percolation KW - Yucca Mountain KW - Nevada KW - faults KW - hydrology KW - chlorine KW - high-level waste KW - matrix KW - Cl-36 KW - structural controls KW - Nye County Nevada KW - Miocene KW - measurement KW - Tertiary KW - Neogene KW - infiltration KW - waste disposal KW - Paintbrush Tuff KW - 16:Structural geology KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52555195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Chlorine-36+measurements+define+structural+controls+on+fast+hydrologic+pathways+at+Yucca+Mountain%2C+Nevada&rft.au=Sweetkind%2C+D+S%3BFabryka-Martin%2C+J+T%3BFlint%2C+A+L%3BLevy%2C+S+S%3BWolfsberg%2C+A+V%3BAnonymous&rft.aulast=Sweetkind&rft.aufirst=D&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=308&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; chlorine; Cl-36; faults; fractures; ground water; halogens; high-level waste; hydrology; infiltration; isotopes; matrix; measurement; Miocene; movement; Neogene; Nevada; Nye County Nevada; Paintbrush Tuff; percolation; pyroclastic flows; radioactive isotopes; radioactive waste; spatial distribution; structural controls; Tertiary; thickness; United States; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Multi-component tracer testing in fractured tuff at the C-Wells complex, Yucca Mountain, Nevada AN - 52554110; 1998-066836 AB - Radionuclide transport through saturated fractured tuff is influenced by many physical and chemical processes including advection/dispersion within fractures, diffusion into the porous matrix, sorption onto fracture walls, sorption onto matrix materials, and in the case of colloids, filtration. To quantify these processes, we conducted a forced-gradient tracer test at the C-Wells complex, located 2 km southeast of the potential nuclear waste repository site at Yucca Mountain. Because of the numerous degrees of freedom associated with the different processes mentioned above, breakthrough curves (BTCs) for a single tracer are subject to multiple interpretations; for instance, the effects of flow-field dispersion and matrix diffusion cannot be readily differentiated. We reduced these uncertainties by simultaneously injecting a mixture of four tracers having different characteristics, including two nonsorbing solutes of different diffusivities (pentafluorobenzoate and bromide anions), a sorbing solute (lithium cation), and a colloidal tracer (360-nm diameter fluorescent polystyrene microspheres). The test was conducted in a steady-state weak-dipole flow field established with partial recirculation ( approximately 20 L/min) of the production well discharge ( approximately 575 L/min). The packed-off test interval was located within the lower Bullfrog Tuff, approximately 700 m below the land surface (300 m below the water table). The wells were 32 m apart at depth. All tracers yielded bimodal BTCs, indicating multiple flow pathways. The effects of complex transport processes were quantified by using a dual-porosity transport model to simultaneously fit the observed BTCs for the different tracers under the constraint that all parameters with the exception of diffusivity and retardation factor had to be the same for each tracer. Differences between the BTCs for the two non-sorbing tracers demonstrated matrix diffusion, while the attenuated BTC for lithium revealed the degree of fracture and matrix sorption. Strong attenuation of the microsphere BTC relative to the solutes showed the importance of filtration processes. These results increase confidence in our conceptual model of contaminant transport through a dual-porosity fractured medium and provide us with field-scale transport parameters to help guide future modeling efforts. JF - Abstracts with Programs - Geological Society of America AU - Turin, H J AU - Reimus, P W AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 369 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - fractured materials KW - volcanic rocks KW - igneous rocks KW - ground water KW - Cenozoic KW - fractures KW - transport KW - Bullfrog Member KW - movement KW - tracers KW - tuff KW - discharge KW - C-Wells complex KW - Yucca Mountain KW - Nevada KW - diffusion KW - colloidal materials KW - matrix KW - injection KW - solutes KW - Nye County Nevada KW - porosity KW - Miocene KW - models KW - pyroclastics KW - Tertiary KW - Neogene KW - steady-state processes KW - testing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52554110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Multi-component+tracer+testing+in+fractured+tuff+at+the+C-Wells+complex%2C+Yucca+Mountain%2C+Nevada&rft.au=Turin%2C+H+J%3BReimus%2C+P+W%3BAnonymous&rft.aulast=Turin&rft.aufirst=H&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Bullfrog Member; C-Wells complex; Cenozoic; colloidal materials; diffusion; discharge; fractured materials; fractures; ground water; igneous rocks; injection; matrix; Miocene; models; movement; Neogene; Nevada; Nye County Nevada; porosity; pyroclastics; solutes; steady-state processes; Tertiary; testing; tracers; transport; tuff; United States; volcanic rocks; Yucca Mountain ER - TY - RPRT T1 - Modeling exposure to depleted uranium in support of decommissioning at Jefferson Proving Ground, Indiana AN - 52541842; 1999-000197 AB - Jefferson Proving Ground was used by the US Army Test and Evaluation Command for testing of depleted uranium munitions and closed in 1995 under the Base Realignment and Closure Act. As part of the closure of JPG, assessments of potential adverse health effects to humans and the ecosystem were conducted. This paper integrates recent information obtained from site characterization surveys at JPG with environmental monitoring data collected from 1983 through 1994 during DU testing. Three exposure scenarios were evaluated for potential adverse effects to human health: an occasional use scenario and two farming scenarios. Human exposure was minimal from occasional use, but significant risk were predicted from the farming scenarios when contaminated groundwater was used by site occupants. The human health risk assessments do not consider the significant risk posed by accidents with unexploded ordnance. Exposures of white-tailed deer to DU were also estimated in this study, and exposure rates result in no significant increase in either toxicological or radiological risks. The results of this study indicate that remediation of the DU impact area would not substantially reduce already low risks to humans and the ecosystem, and that managed access to JPG is a reasonable model for future land use options. JF - Modeling exposure to depleted uranium in support of decommissioning at Jefferson Proving Ground, Indiana AU - Ebinger, M H AU - Oxenburg, T P Y1 - 1997 PY - 1997 DA - 1997 SP - 10 VL - LA-UR-96-3907 | CONF-970335-4 KW - United States KW - site exploration KW - pollutants KW - reclamation KW - impact statements KW - pollution KW - decision-making KW - ground water KW - models KW - Jefferson Proving Ground KW - decontamination KW - Jefferson County Indiana KW - Indiana KW - testing KW - risk assessment KW - Ripley County Indiana KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52541842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Ebinger%2C+M+H%3BOxenburg%2C+T+P&rft.aulast=Ebinger&rft.aufirst=M&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Modeling+exposure+to+depleted+uranium+in+support+of+decommissioning+at+Jefferson+Proving+Ground%2C+Indiana&rft.title=Modeling+exposure+to+depleted+uranium+in+support+of+decommissioning+at+Jefferson+Proving+Ground%2C+Indiana&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1999-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97002433NEG, Springfield, VA, United States N1 - SuppNotes - Presented at Waste Management '97, Tucson, AZ, Mar. 2-7, 1997; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Ne-21 surface exposure ages from the Banco Bonito obsidian flow, Valles Caldera, New Mexico, USA AN - 52535217; 1999-003297 AB - The age of the Banco Bonito flow, the youngest volcanic unit in the Valles caldera, is important for assessing regional volcanic hazards. K-Ar, Ar-39/Ar-40, fission track, and ESR methods have yielded ages ranging from 1300 ka to 37 ka, creating uncertainty as to the true age of the flow. We report here Ne-21 surface exposure ages on 425-250 micron xenocrystic quartz grains separated from 6 surfaces. Low He-4 concentrations in the quartz suggest that any nucleogenic Ne-21 originally present was degassed prior to eruption. Samples are from the tops of pressure ridges, and consist of pumiceous tuff within 1-2 km of the vent and crystal-rich obsidian about 3 km from the vent. Well-preserved pressure ridges and hummocky topography indicate limited erosion, but unambiguous original flow surfaces were not identified. The four pumiceous tuff samples yield a range of surface exposure dates: 37+ or -4 ka, 34+ or -2 ka, 26+ or -3 ka, and 45+ or -6 ka (1 sigma analytical errors). One of the two obsidian samples falls in this range (34+ or -2 ka), but one sample is older (70+ or -11 ka). Reasonable erosion rates (0.1 to 1 cm/ka) can reduce exposure ages by 10 to 50%, suggesting that variable erosion creates the observed spread in ages. Snow cover is likely to have a smaller effect (<10%). The exposure ages are consistent with an eruption age of circa 50-55 ka (i.e. ESR and radiocarbon ages from the underlying El Cajete pumice) with an erosion rate of up to 1 cm/ka. However, the average surface exposure age (omitting the 70 ka and 26 ka outliers) of 37 + or -5 ka agrees well with previously reported ESR ages for the Banco Bonito of 37+ or -6 ka and 45+/2 ka (Ogoh et al., 1993, APP RAD ISO, 44(1-2), 233-237) and may also approximate the eruption age. The Ne-21 ages strengthen arguments that post-caldera volcanism within the Jemez Volcanic Field is much younger than previously believed. Exposure ages are based on a cosmogenic Ne-21 sea level-high latitude production rate of 20 at/gm-yr; latitude is 35.84 degrees. For the Ne-21 samples quoted above, altitudes (m) are: 2627, 2627, 2682, 2694, 2481, 2487; cosmogenic Ne-21 abundances (x 1E6) are: 4.63+ or -0.45, 4.21+ or -0.30, 3.40+ or -0.41, 5.88+ or -0.77, 7.99+ or -1.29, 3.90+ or -0.21 (1 sigma errors). JF - Abstracts with Programs - Geological Society of America AU - Phillips, William M AU - Poths, Jane AU - Goff, Fraser E AU - Reneau, Steven L AU - McDonald, Eric V AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 419 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - silicates KW - Ne-21 KW - Jemez volcanic field KW - volcanic rocks KW - geologic hazards KW - silica minerals KW - isotopes KW - igneous rocks KW - New Mexico KW - erosion rates KW - He-4 KW - exposure age KW - stable isotopes KW - Banco Bonito obsidian flow KW - Cenozoic KW - geochronology KW - noble gases KW - neon KW - Valles Caldera KW - helium KW - framework silicates KW - tuff KW - spectra KW - EPR spectra KW - Ar/Ar KW - Quaternary KW - fission-track dating KW - pyroclastics KW - K/Ar KW - eruptions KW - volcanoes KW - quartz KW - xenocrysts KW - 03:Geochronology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52535217?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Ne-21+surface+exposure+ages+from+the+Banco+Bonito+obsidian+flow%2C+Valles+Caldera%2C+New+Mexico%2C+USA&rft.au=Phillips%2C+William+M%3BPoths%2C+Jane%3BGoff%2C+Fraser+E%3BReneau%2C+Steven+L%3BMcDonald%2C+Eric+V%3BAnonymous&rft.aulast=Phillips&rft.aufirst=William&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=419&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Ar/Ar; Banco Bonito obsidian flow; Cenozoic; EPR spectra; erosion rates; eruptions; exposure age; fission-track dating; framework silicates; geochronology; geologic hazards; He-4; helium; igneous rocks; isotopes; Jemez volcanic field; K/Ar; Ne-21; neon; New Mexico; noble gases; pyroclastics; quartz; Quaternary; silica minerals; silicates; spectra; stable isotopes; tuff; United States; Valles Caldera; volcanic rocks; volcanoes; xenocrysts ER - TY - JOUR T1 - Groundwater mixing, flow-paths and water/rock interaction at INEEL; evidence from uranium isotopes AN - 52534510; 1999-005223 AB - We are using the short- and long-lived members of the U- and Th-decay series to model contaminant transport at INEEL. The isotopic composition and concentration of uranium in 28 groundwater samples help to delineate mixing trends and flow-paths. Uranium concentrations range from 0.3 to 3.6 ppb and (super 234) U/ (super 238) U activity ratios range between 1.6 and 3.1. All of the samples have natural (super 235) U/ (super 238) U ratios and contain no (super 236) U, suggesting that the observed trends are natural. Groundwater nearest Birch Creek and Little Lost River has high (super 234) U/ (super 238) U ratios, in contrast to the low to moderate values of groundwater dominated by the regional southwesterly flow of the Snake River Plain Aquifer. Mixing of these water masses can account for the intermediate uranium values of many of the samples. Contours of high (super 234) U/ (super 238) U ratios delineate preferential flow-paths extending southward from the Birch Creek and Little Lost River recharge areas. (super 234) U/ (super 238) U ratios generally decrease in the direction of groundwater flow, a feature that we suggest is due to interaction between groundwater and the host basalt. It appears that dissolution and/or ion exchange have dominated over alpha recoil or selective leaching processes in this region and have resulted in lowering of the (super 234) U/ (super 238) U ratios toward equilibrium values. A positive correlation between uranium and strontium isotopic ratios (T. Johnson et al, this meeting) supports this hypothesis. Samples with the lowest (super 234) U/ (super 238) U ratios and uranium concentrations occur in two isolated pockets. These are interpreted to represent groundwater with a longer residence time in the aquifer that has reacted to a greater extent with the host rocks. The data demonstrate the usefulness of uranium isotopic ratios in identifying groundwater flow-paths, mixing and water/rock interaction. JF - Abstracts with Programs - Geological Society of America AU - Roback, Robert C AU - Murrell, Michael AU - Nunn, Andy AU - Johnson, Thomas AU - McCling, Travis AU - Luo, Shangde AU - Ku, Richard AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 308 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Snake River Plain Aquifer KW - Little Lost River KW - isotopes KW - ground water KW - Birch Creek Alaska KW - radioactive isotopes KW - water-rock interaction KW - transport KW - mixing KW - East-Central Alaska KW - movement KW - Idaho KW - isotope ratios KW - pollution KW - models KW - INEEL KW - recharge KW - metals KW - Alaska KW - uranium KW - U-238/U-234 KW - U-238/U-235 KW - leaching KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52534510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Groundwater+mixing%2C+flow-paths+and+water%2Frock+interaction+at+INEEL%3B+evidence+from+uranium+isotopes&rft.au=Roback%2C+Robert+C%3BMurrell%2C+Michael%3BNunn%2C+Andy%3BJohnson%2C+Thomas%3BMcCling%2C+Travis%3BLuo%2C+Shangde%3BKu%2C+Richard%3BAnonymous&rft.aulast=Roback&rft.aufirst=Robert&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=308&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; Alaska; Birch Creek Alaska; East-Central Alaska; ground water; Idaho; INEEL; isotope ratios; isotopes; leaching; Little Lost River; metals; mixing; models; movement; pollution; radioactive isotopes; recharge; Snake River Plain Aquifer; transport; U-238/U-234; U-238/U-235; United States; uranium; water-rock interaction ER - TY - JOUR T1 - Distinguishing cooling and tectonic joints in the Bandelier Tuff, Pajarito Plateau, north-central Rio Grande Rift, New Mexico AN - 52533369; 1999-005390 AB - Cooling and tectonic joint sets in volcanic rocks have been distinguished with a method that uses joint apertures. The method was developed as part of a fracture study of the Quaternary Tshirege Member of the Bandelier Tuff in the north-central Rio Grande rift, New Mexico. Assumptions used to develop the method to distinguish these two types of joints are: (1) The average initial aperture is constant for all cooling fractures and (2) Cooling joints, in general, have larger apertures than tectonic joints because their apertures will have both an initial cooling component and subsequent tectonic component. The best method to distinguish cooling and tectonic joints separates joint types using the calculated tectonic component of aperture, which is the total aperture less the average cooling component. Using this calculation, the tectonic component of aperture in the Tshirege Member decreases systematically from an average maximum of 0.94 cm on fractures striking perpendicular to the WNW-ESE regional extension direction to 0.0 cm on those striking parallel to the regional extension direction. Joints with the same strike and apertures larger than the calculated tectonic component of aperture for that strike direction are interpreted as cooling joints. These cooling joints have three moderately preferred orientations approximately 120 degrees apart in an otherwise largely random distribution. This pattern apparently reflects a somewhat uniform distribution of cooling centers in the tuff. Interpreted tectonic joints have apertures equal to or smaller than the calculated tectonic component of aperture. These tectonic joints, noticeably absent around the N87 degrees W least principal horizontal stress direction, are predominantly NE- and NW-striking. JF - Abstracts with Programs - Geological Society of America AU - Walters, Matthew C AU - Aldrich, M J, Jr AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 417 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - orientation KW - North America KW - volcanic rocks KW - Quaternary KW - igneous rocks KW - stress KW - Pajarito Plateau KW - joints KW - New Mexico KW - extension tectonics KW - Rio Grande Rift KW - Cenozoic KW - fractures KW - Tshirege Member KW - strike KW - Bandelier Tuff KW - style KW - cooling KW - Pleistocene KW - tectonics KW - 16:Structural geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52533369?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Distinguishing+cooling+and+tectonic+joints+in+the+Bandelier+Tuff%2C+Pajarito+Plateau%2C+north-central+Rio+Grande+Rift%2C+New+Mexico&rft.au=Walters%2C+Matthew+C%3BAldrich%2C+M+J%2C+Jr%3BAnonymous&rft.aulast=Walters&rft.aufirst=Matthew&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; Cenozoic; cooling; extension tectonics; fractures; igneous rocks; joints; New Mexico; North America; orientation; Pajarito Plateau; Pleistocene; Quaternary; Rio Grande Rift; stress; strike; style; tectonics; Tshirege Member; United States; volcanic rocks ER - TY - JOUR T1 - Effects of fracture coatings on radionuclide transport through fractured tuff AN - 52531301; 1999-005395 AB - Transport of radionuclides through the saturated zone beneath the potential high-level nuclear waste repository at Yucca Mountain, Nevada, is affected by interactions between solutions moving through fractures and the surrounding matrix. These interactions, including matrix diffusion and matrix sorption, have been demonstrated to be theoretically capable of both retarding and attenuating radionuclide transport. Core samples collected at the site often reveal extensive fracture coatings of secondary minerals, including manganese oxides, zeolites, and clays. In order to determine the effects of these coatings on fracture/matrix interaction, and thus on radionuclide transport, a fractured-core flow cell has been developed. Using this apparatus, radionuclide solutions containing H-3, Tc-95m, U-233 and Np-237 have been passed through natural fractures in tuff cores collected in the vicinity of Yucca Mountain. Comparison of the resulting breakthrough curves with both model predictions and breakthrough curves measured on cores with artificial fractures without coatings demonstrate the importance of the secondary mineral coatings. Both the development of the experimental apparatus and the importance of fracture coatings will be discussed. JF - Abstracts with Programs - Geological Society of America AU - Ware, S D AU - Triay, I R AU - Turin, H J AU - Reimus, P W AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 369 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - fractured materials KW - sorption KW - volcanic rocks KW - solutions KW - isotopes KW - igneous rocks KW - cores KW - ground water KW - fractures KW - saturated zone KW - radioactive isotopes KW - mineral composition KW - transport KW - movement KW - tuff KW - Yucca Mountain KW - Nevada KW - experimental studies KW - diffusion KW - matrix KW - pollution KW - Nye County Nevada KW - pyroclastics KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52531301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Effects+of+fracture+coatings+on+radionuclide+transport+through+fractured+tuff&rft.au=Ware%2C+S+D%3BTriay%2C+I+R%3BTurin%2C+H+J%3BReimus%2C+P+W%3BAnonymous&rft.aulast=Ware&rft.aufirst=S&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - cores; diffusion; experimental studies; fractured materials; fractures; ground water; igneous rocks; isotopes; matrix; mineral composition; movement; Nevada; Nye County Nevada; pollution; pyroclastics; radioactive isotopes; saturated zone; solutions; sorption; transport; tuff; United States; volcanic rocks; Yucca Mountain ER - TY - JOUR T1 - A petrographic/geochemical database and stratigraphic framework for the Southwestern Nevada volcanic field AN - 52528633; 1999-005402 JF - Abstracts with Programs - Geological Society of America AU - Warren, Richard G AU - Cole, Gregory L AU - Sawyer, David A AU - Byers, Frank M, Jr AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 289 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - alteration KW - volcanic rocks KW - X-ray diffraction data KW - igneous rocks KW - data processing KW - thin sections KW - electron probe data KW - Nevada Test Site KW - volcaniclastics KW - Southwestern Nevada volcanic field KW - plutonic rocks KW - mineral composition KW - geographic information systems KW - quantitative analysis KW - data bases KW - chemical composition KW - geochemistry KW - Nevada KW - modal analysis KW - three-dimensional models KW - ORACLE KW - petrography KW - information systems KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52528633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+petrographic%2Fgeochemical+database+and+stratigraphic+framework+for+the+Southwestern+Nevada+volcanic+field&rft.au=Warren%2C+Richard+G%3BCole%2C+Gregory+L%3BSawyer%2C+David+A%3BByers%2C+Frank+M%2C+Jr%3BAnonymous&rft.aulast=Warren&rft.aufirst=Richard&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=289&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alteration; chemical composition; data bases; data processing; electron probe data; geochemistry; geographic information systems; igneous rocks; information systems; mineral composition; modal analysis; Nevada; Nevada Test Site; ORACLE; petrography; plutonic rocks; quantitative analysis; Southwestern Nevada volcanic field; thin sections; three-dimensional models; United States; volcanic rocks; volcaniclastics; X-ray diffraction data ER - TY - BOOK T1 - Predictive fracture mechanics of normal faults; field examples from the Espanola Basin, New Mexico AN - 52524828; 1999-008467 JF - Fractured reservoirs; characterization and modeling AU - Krogh, K E Carter A2 - Hoak, Thomas E. A2 - Klawitter, Alan L. A2 - Blomquist, Peter K. Y1 - 1997 PY - 1997 DA - 1997 PB - Rocky Mountain Association of Geologists, Denver, CO SN - 0933979207 KW - United States KW - North America KW - structural analysis KW - New Mexico KW - extension tectonics KW - geometry KW - Rio Grande Rift KW - cracks KW - normal faults KW - mechanics KW - tectonics KW - faults KW - Espanola Basin KW - fault zones KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52524828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Krogh%2C+K+E+Carter&rft.aulast=Krogh&rft.aufirst=K+E&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0933979207&rft.btitle=Predictive+fracture+mechanics+of+normal+faults%3B+field+examples+from+the+Espanola+Basin%2C+New+Mexico&rft.title=Predictive+fracture+mechanics+of+normal+faults%3B+field+examples+from+the+Espanola+Basin%2C+New+Mexico&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 42 N1 - PubXState - CO N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Blackened Smackover; thermal evolution and mass transfer adjacent to a subsurface alkalic igneous dike in northern Louisiana AN - 52519531; 1999-013426 JF - Transactions - Gulf Coast Association of Geological Societies AU - Dutrow, B AU - Henry, D J AU - Christensen, C AU - Gable, C W AU - Travis, B J AU - Heydari, E A2 - Craig, William W. A2 - Kohl, Barry Y1 - 1997 PY - 1997 DA - 1997 SP - 131 EP - 139 PB - Gulf Coast Association of Geological Societies, New Orleans, LA VL - 47 SN - 0533-6562, 0533-6562 KW - United States KW - Cretaceous KW - igneous rocks KW - petroleum KW - Smackover Formation KW - thermal history KW - metasomatism KW - cores KW - temperature KW - reservoir rocks KW - spatial distribution KW - oil wells KW - Morehouse Parish Louisiana KW - Carter Hope-Fee Well KW - thermal maturity KW - mineral assemblages KW - Louisiana KW - mass transfer KW - Upper Jurassic KW - Jurassic KW - host rocks KW - Gulf Coastal Plain KW - metamorphism KW - Mesozoic KW - emplacement KW - alkalic composition KW - genesis KW - isograds KW - intrusions KW - dikes KW - aureoles KW - temporal distribution KW - minerals KW - 29A:Economic geology, geology of energy sources KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52519531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+-+Gulf+Coast+Association+of+Geological+Societies&rft.atitle=Blackened+Smackover%3B+thermal+evolution+and+mass+transfer+adjacent+to+a+subsurface+alkalic+igneous+dike+in+northern+Louisiana&rft.au=Dutrow%2C+B%3BHenry%2C+D+J%3BChristensen%2C+C%3BGable%2C+C+W%3BTravis%2C+B+J%3BHeydari%2C+E&rft.aulast=Dutrow&rft.aufirst=B&rft.date=1997-01-01&rft.volume=47&rft.issue=&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Transactions+-+Gulf+Coast+Association+of+Geological+Societies&rft.issn=05336562&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 47th annual convention of GCAGS, AAPG regional meeting and the 45th annual convention of the SEPM Gulf Coast Section ; Geology across the Gulf; new offshore technologies; keys to onshore revitalization N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 13 N1 - PubXState - LA N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - TGCGA9 N1 - SubjectsTermNotLitGenreText - alkalic composition; aureoles; Carter Hope-Fee Well; cores; Cretaceous; dikes; emplacement; genesis; Gulf Coastal Plain; host rocks; igneous rocks; intrusions; isograds; Jurassic; Louisiana; mass transfer; Mesozoic; metamorphism; metasomatism; mineral assemblages; minerals; Morehouse Parish Louisiana; oil wells; petroleum; reservoir rocks; Smackover Formation; spatial distribution; temperature; temporal distribution; thermal history; thermal maturity; United States; Upper Jurassic ER - TY - JOUR T1 - On the use of high-performance simulation in the management of groundwater resources in large aquifer system AN - 52515384; 1999-015640 JF - Proceedings - International Association for Hydraulic Research Congress = Congres de l'Association Internationale de Recherches Hydrauliques AU - Tompson, Andrew F B AU - Rosenberg, Nina D AU - Bosl, William J AU - Falgout, Robert D AU - Smith, Steven G AU - Shumaker, Dana E AU - Ashby, Steven F A2 - Holly, Forrest M., Jr. A2 - Alsaffar, Adnan A2 - Findikakis, Angelos N. A2 - Stauffer, Fritz Y1 - 1997 PY - 1997 DA - 1997 SP - 337 EP - 342 PB - [International Association for Hydraulic Research Congress] VL - 27, Theme C KW - United States KW - Orange County California KW - water management KW - pollution KW - salinity KW - simulation KW - two-dimensional models KW - ground water KW - aquifers KW - California KW - Southern California KW - Santa Ana River KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52515384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Association+for+Hydraulic+Research+Congress+%3D+Congres+de+l%27Association+Internationale+de+Recherches+Hydrauliques&rft.atitle=On+the+use+of+high-performance+simulation+in+the+management+of+groundwater+resources+in+large+aquifer+system&rft.au=Tompson%2C+Andrew+F+B%3BRosenberg%2C+Nina+D%3BBosl%2C+William+J%3BFalgout%2C+Robert+D%3BSmith%2C+Steven+G%3BShumaker%2C+Dana+E%3BAshby%2C+Steven+F&rft.aulast=Tompson&rft.aufirst=Andrew+F&rft.date=1997-01-01&rft.volume=27%2C+Theme+C&rft.issue=&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+International+Association+for+Hydraulic+Research+Congress+%3D+Congres+de+l%27Association+Internationale+de+Recherches+Hydrauliques&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Water for a changing global community; the 27th congress of the International Association for Hydraulic Research N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 7 N1 - Document feature - illus. N1 - SuppNotes - Published by ASCE for IAHR N1 - Last updated - 2012-06-07 N1 - CODEN - PCIRD3 N1 - SubjectsTermNotLitGenreText - aquifers; California; ground water; Orange County California; pollution; salinity; Santa Ana River; simulation; Southern California; two-dimensional models; United States; water management ER - TY - JOUR T1 - Raman spectroscopic studies of thio-arsenites AN - 52509166; 1999-009654 AB - In order to elucidate the stoichiometry of thio-arsenite complexes, Raman spectra were acquired on aqueous solutions with [S-2]+[As+3] = 0.1 and 0.5 M, S/As = 0.0 to 9 and pH = 7 to 12.5. At pH = 12.5 and S/As = 9, a band (I) appears at 385 cm-1, due to a thio-arsenite. The intensity of band I decreases with S/As ratio, giving way to bands near 770 and 600 cm-1, due to HAsO3-2. When pH = 10.6, band I is joined by bands at 325 (II) and 415 (III) cm-1, also due to a thio-arsenite. With decreasing S/As, bands II&III increase in intensity relative to band I, and a shoulder appears on the high wavenumber side of band III; eventually all these bands give way to bands near 600, 700 and 800 cm-1, due to H2AsO3-2. At pH = 10.6 - 7, and high S/As, there is little change in the spectra; the intensities of bands II & III increase slightly with decreasing pH compared to band I. At pH<9 and low S/As, bands of H3AsO3 appear. These data indicate the existence of several thio-arsenic species over a wide range of pH and S/As. Previous workers have attributed bands II and III to the species AsS(SH)2-, and band I to the species AsS2(SH)-2. However, our results suggest that the relationship among the species responsible for these Raman bands is more complex than simple protonation, as the relative intensities of band I relative to bands II and III change as a function of S/As at constant pH. Our results also suggest that the speciation of arsenic in reduced sulfide solutions may be more complicated than previously realized. JF - Abstracts with Programs - Geological Society of America AU - Wood, Scott A AU - Tait, C D AU - Janecky, D R AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 322 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - arsenites KW - Raman spectra KW - solutions KW - metals KW - arsenic KW - sulfur KW - spectra KW - aqueous solutions KW - stoichiometry KW - pH KW - minerals KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52509166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Raman+spectroscopic+studies+of+thio-arsenites&rft.au=Wood%2C+Scott+A%3BTait%2C+C+D%3BJanecky%2C+D+R%3BAnonymous&rft.aulast=Wood&rft.aufirst=Scott&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=322&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aqueous solutions; arsenic; arsenites; metals; minerals; pH; Raman spectra; solutions; spectra; stoichiometry; sulfur ER - TY - JOUR T1 - Iridium in samples from the Ames Structure AN - 52477358; 1999-030155 AB - Eighteen rock samples from four wells in the Ames structure were analyzed for iridium. Three samples showed iridium concentrations of >100 ppT (parts per trillion); the range was < or =3 ppT to 173 ppT. The elevated iridium values in the three samples together with the presence of shocked quartz provide additional support for the bolide hypothesis for the origin of the Ames structure. JF - Circular - Oklahoma Geological Survey AU - Attrep, Moses, Jr AU - Quintana, Leonard R AU - Cisneros, Michael R Y1 - 1997 PY - 1997 DA - 1997 SP - 375 EP - 378 PB - University of Oklahoma, Norman, OK SN - 0078-4397, 0078-4397 KW - United States KW - methods KW - lower Paleocene KW - impact features KW - Cretaceous KW - platinum group KW - Upper Cretaceous KW - shocked quartz KW - iridium KW - cores KW - Cenozoic KW - Ames Structure KW - Paleocene KW - chemical composition KW - concentration KW - Paleogene KW - metamorphism KW - Mesozoic KW - Tertiary KW - Oklahoma KW - metals KW - K-T boundary KW - Major County Oklahoma KW - neutron activation analysis KW - impact craters KW - stratigraphic boundary KW - shock metamorphism KW - terrestrial sources KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52477358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Circular+-+Oklahoma+Geological+Survey&rft.atitle=Iridium+in+samples+from+the+Ames+Structure&rft.au=Attrep%2C+Moses%2C+Jr%3BQuintana%2C+Leonard+R%3BCisneros%2C+Michael+R&rft.aulast=Attrep&rft.aufirst=Moses&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=375&rft.isbn=&rft.btitle=&rft.title=Circular+-+Oklahoma+Geological+Survey&rft.issn=00784397&rft_id=info:doi/ L2 - http://www.ogs.ou.edu/pubsDLCirculars.php LA - English DB - GeoRef N1 - Conference title - Ames structure in northwest Oklahoma and similar features; origin and petroleum production (1995 symposium) N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 10 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-06-13 N1 - CODEN - OKGCAO N1 - SubjectsTermNotLitGenreText - Ames Structure; Cenozoic; chemical composition; concentration; cores; Cretaceous; impact craters; impact features; iridium; K-T boundary; lower Paleocene; Major County Oklahoma; Mesozoic; metals; metamorphism; methods; neutron activation analysis; Oklahoma; Paleocene; Paleogene; platinum group; shock metamorphism; shocked quartz; stratigraphic boundary; terrestrial sources; Tertiary; United States; Upper Cretaceous ER - TY - JOUR T1 - Effects of open gaps on particle velocity measurements AN - 52461936; 1999-050132 JF - Rock Mechanics and Rock Engineering AU - Fourney, W L AU - Dick, R D AU - Fordyce, D F AU - Weaver, T A Y1 - 1997 PY - 1997 DA - 1997 SP - 95 EP - 111 PB - Springer-Verlag, Vienna-New York VL - 30 IS - 2 SN - 0723-2632, 0723-2632 KW - experimental studies KW - explosions KW - finite difference analysis KW - stress KW - statistical analysis KW - data processing KW - acceleration KW - joints KW - displacements KW - rock mechanics KW - measurement KW - models KW - computer programs KW - laboratory studies KW - fractures KW - detection KW - ground motion KW - velocity KW - nuclear explosions KW - WONDY KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52461936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Rock+Mechanics+and+Rock+Engineering&rft.atitle=Effects+of+open+gaps+on+particle+velocity+measurements&rft.au=Fourney%2C+W+L%3BDick%2C+R+D%3BFordyce%2C+D+F%3BWeaver%2C+T+A&rft.aulast=Fourney&rft.aufirst=W&rft.date=1997-01-01&rft.volume=30&rft.issue=2&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Rock+Mechanics+and+Rock+Engineering&rft.issn=07232632&rft_id=info:doi/ L2 - http://www.springerlink.com/content/101578/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 7 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMREDX N1 - SubjectsTermNotLitGenreText - acceleration; computer programs; data processing; detection; displacements; experimental studies; explosions; finite difference analysis; fractures; ground motion; joints; laboratory studies; measurement; models; nuclear explosions; rock mechanics; statistical analysis; stress; velocity; WONDY ER - TY - RPRT T1 - Research symposium on Monitoring a comprehensive test ban treaty AN - 52460949; 1999-047537 AB - Monitoring the Comprehensive Test Ban Treaty (CTBT) to magnitude levels below 4.0 will require use of regional seismic data recorded at distances of less than 2000 km. To improve regional discriminant performance we tested three different methods of correcting for path effects, and the third method includes a correction for source-scaling. We used regional recordings of broadband from stations in and near China. Our first method removes trends between phase ratios and physical parameters associated with each event-station path. This approach requires knowledge of the physical parameters along an event-station path, such as topography, basin thickness, and crustal thickness. Our second approach is somewhat more empirical. We examine spatial distributions of phase amplitudes after subtracting event magnitude and correcting for path distance. For a given station, phase, and frequency band, we grid and then smooth the magnitude-corrected and distance-corrected amplitudes to create a map representing a correction surface. We reference these maps to correct phase amplitudes prior to forming discrimination ratios. Our third approach is the most complicated, but also the most rigorous. For a given station and phase, we invert the spectra of a number of well-recorded earthquakes for source and path parameters. We then use the values obtained from the inversion to correct phase amplitudes for the effects of source size, distance, and attenuation. Finally, the amplitude residuals are gridded and smoothed to create a correction surface representing secondary path effects. We find that simple ratio- parameter corrections can improve discrimination performance along some paths (such as Kazakh Test Site (KTS) to WMQ), but for other paths (such as Lop Nor to AAK) the corrections are not beneficial. Our second method, the empirical path correction surfaces, improves discrimination performance for Lop Nor to AAK paths. Our third method, combined source and path corrections, has only been tested at WMQ (primarily using KTS explosions and northwest China earthquakes), but the method successfully corrects for source-scaling and propagation effects. We favor this combined source and path correction technique over the other correction methods, and we plan to test this method at other Asian stations. JF - Research symposium on Monitoring a comprehensive test ban treaty AU - Hartse, H E Y1 - 1997 PY - 1997 DA - 1997 SP - 14 VL - LA-UR-97-2644 KW - monitoring KW - Far East KW - explosions KW - data acquisition KW - data processing KW - data KW - elastic waves KW - seismic sources KW - military geology KW - symposia KW - seismicity KW - seismic waves KW - corrections KW - nuclear explosions KW - Asia KW - earthquakes KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52460949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Hartse%2C+H+E&rft.aulast=Hartse&rft.aufirst=H&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Research+symposium+on+Monitoring+a+comprehensive+test+ban+treaty&rft.title=Research+symposium+on+Monitoring+a+comprehensive+test+ban+treaty&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Research symposium on Monitoring a comprehensive test ban treaty N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1999-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98000617NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Surface exposure ages and denudation rates estimated with cosmogenic 3He in garnet AN - 52456071; 1999-052204 JF - Abstracts, Annual Meeting - Association of American Geographers AU - Phillips, Bill AU - Quade, Jay AU - Shroder, Jack AU - Poths, Jane AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 209 PB - Association of American Geographers, Southeastern Division, Washington, DC VL - 1997 SN - 0197-1700, 0197-1700 KW - silicates KW - isotopes KW - erosion KW - garnet group KW - cosmogenic elements KW - Nanga Parbat KW - He-3 KW - erosion rates KW - exposure age KW - stable isotopes KW - geochronology KW - Indian Peninsula KW - denudation KW - noble gases KW - Kashmir KW - orthosilicates KW - Jammu and Kashmir KW - absolute age KW - Himalayas KW - helium KW - tectonics KW - Asia KW - landform evolution KW - orogenic belts KW - nesosilicates KW - 23:Geomorphology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52456071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%2C+Annual+Meeting+-+Association+of+American+Geographers&rft.atitle=Surface+exposure+ages+and+denudation+rates+estimated+with+cosmogenic+3He+in+garnet&rft.au=Phillips%2C+Bill%3BQuade%2C+Jay%3BShroder%2C+Jack%3BPoths%2C+Jane%3BAnonymous&rft.aulast=Phillips&rft.aufirst=Bill&rft.date=1997-01-01&rft.volume=1997&rft.issue=&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Abstracts%2C+Annual+Meeting+-+Association+of+American+Geographers&rft.issn=01971700&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Association of American Geographers, 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Asia; cosmogenic elements; denudation; erosion; erosion rates; exposure age; garnet group; geochronology; He-3; helium; Himalayas; Indian Peninsula; isotopes; Jammu and Kashmir; Kashmir; landform evolution; Nanga Parbat; nesosilicates; noble gases; orogenic belts; orthosilicates; silicates; stable isotopes; tectonics ER - TY - RPRT T1 - Water balance study of four landfill cover designs varying in slope for semiarid regions AN - 52414544; 2000-000034 AB - The goal of disposing of radioactive and hazardous waste in shallow landfills is to reduce risk to human health and to the environment by isolating contaminants until they no longer pose a hazard. In order to achieve this, the performance of a landfill cover design without an engineered barrier (Conventional Design) was compared with three designs containing either a hydraulic barrier (EPA Design) or a capillary barrier (Loam and Clay Loam Capillary Barrier Designs). Water balance parameters were measured since 1991 at six-hour intervals for four different landfill cover designs in 1.0- by 10.0-m plots with downhill slopes of 5, 10, 15, and 25%. Whereas runoff generally accounted for only 2-3% of the precipitation losses on these designs, similar values for evapotranspiration ranged from 86% to 91%, with increased evapotranspiration occurring with increases in slope. Consequently, interflow and seepage usually decreased with increasing slope for each landfill cover design. Seepage consisted of up to 10% of the precipitation on the Conventional Design, whereas the hydraulic barrier in the EPA Design effectively controlled seepage at all slopes, and both of the capillary designs worked effectively to eliminate seepage at the higher slopes. JF - Water balance study of four landfill cover designs varying in slope for semiarid regions AU - Nyhan, J W AU - Schofield, T G AU - Salazar, J A Y1 - 1997 PY - 1997 DA - 1997 SP - 9 VL - LA-UR-96-4092 | CONF-970208-6 KW - soils KW - Plantae KW - terrestrial environment KW - isotopes KW - landfills KW - semi-arid environment KW - pollution KW - migration of elements KW - fluid dynamics KW - seepage KW - radioactive waste KW - evaluation KW - radioactive isotopes KW - hydraulic conductivity KW - waste disposal KW - low-level waste KW - underground disposal KW - disposal barriers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52414544?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Nyhan%2C+J+W%3BSchofield%2C+T+G%3BSalazar%2C+J+A&rft.aulast=Nyhan&rft.aufirst=J&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Water+balance+study+of+four+landfill+cover+designs+varying+in+slope+for+semiarid+regions&rft.title=Water+balance+study+of+four+landfill+cover+designs+varying+in+slope+for+semiarid+regions&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97003103NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the International containment technology conference and exhibition; Saint Petersburg, FL, Feb. 9-12, 1997; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Tourmaline-rich pseudomorphs as markers of an infiltration front AN - 52346992; 2000-046270 JF - Tourmaline 1997; international symposium on Tourmaline AU - Dutrow, Barbara L AU - Foster, C T, Jr AU - Henry, Darrell J AU - Travis, B J Y1 - 1997 PY - 1997 DA - 1997 PB - Czech Republic, Ministry of Education KW - United States KW - silicates KW - markers KW - overgrowths KW - ring silicates KW - fluid phase KW - models KW - pseudomorphism KW - metapelite KW - infiltration KW - metamorphic rocks KW - metasedimentary rocks KW - boron KW - thermodynamic properties KW - Maine KW - zoning KW - tourmaline group KW - P-T conditions KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52346992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Dutrow%2C+Barbara+L%3BFoster%2C+C+T%2C+Jr%3BHenry%2C+Darrell+J%3BTravis%2C+B+J&rft.aulast=Dutrow&rft.aufirst=Barbara&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Tourmaline-rich+pseudomorphs+as+markers+of+an+infiltration+front&rft.title=Tourmaline-rich+pseudomorphs+as+markers+of+an+infiltration+front&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Tourmaline 1997; international symposium on Tourmaline N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Integrated reservoir management for the long term; the Carpinteria offshore field AN - 52257366; 2001-020126 AB - The Carpinteria Offshore Field, Santa Barbara, California, has produced more than 100 million barrels of oil to date. This mature field has continued operations in an economically and politically challenging environment that finally resulted in the abandonment of the field's California State leases by the lease holder. The abandoned leases, together with adjoining federal leases are now operated by an independent producer. Los Alamos National Laboratory has joined with that independent operator, Pacific Operators Offshore, and with the State Lands Commission of California and the Minerals Management Service, in a unique collaborative effort to redevelop the mature field. This project is a part of a larger umbrella project, the Advanced Reservoir Management Project (ARM), that is designed to demonstrate the worth of advanced computational tools and state of the art methods for independent oil and gas producers. The Carpinteria Reservoir Redevelopment project takes a long-term view of reservoir management - as a result, our management plan includes a continuing investment in time and technology in order to better understand the reservoir. In particular, we have completed an extensive reservoir characterization and geological modeling effort that has created a self-consistent model, satisfying geophysical, geological, and engineering data constraints. We have begun the engineering-intensive flow simulation phase of the project using the current geological description of the reservoir, and are confident that our careful efforts in geological modeling will result in a reasonable reservoir flow model. Dynamic documents exist that are used by participants to stay abreast of developments on the project. JF - Integrated reservoir management for the long term; the Carpinteria offshore field AU - Whitney, E M AU - Brickey, M R AU - Coombs, S E Y1 - 1997 PY - 1997 DA - 1997 SP - 12 VL - LA-UR-97-861 | CONF-970692-1 KW - United States KW - Carpinteria Field KW - petroleum engineering KW - offshore KW - petroleum KW - Santa Barbara California KW - fluid dynamics KW - simulation KW - oil and gas fields KW - reservoir rocks KW - California KW - oil wells KW - Santa Barbara County California KW - faults KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52257366?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Whitney%2C+E+M%3BBrickey%2C+M+R%3BCoombs%2C+S+E&rft.aulast=Whitney&rft.aufirst=E&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Integrated+reservoir+management+for+the+long+term%3B+the+Carpinteria+offshore+field&rft.title=Integrated+reservoir+management+for+the+long+term%3B+the+Carpinteria+offshore+field&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97005040NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the Society of Petroleum Engineers (SPE) conference, Long Beach, CA, June 1997; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Spatial and temporal variations in mid-ocean-ridge basalt geochemistry along the East Pacific Rise crest; uranium-series disequilibria, radiogenic isotopes, and elemental variability in a closely spaced, two-dimensional grid of samples from 9 degrees 48'-52'N AN - 52233251; 2001-037099 JF - LPI Contribution AU - Sims, K W W AU - Goldstein, S J AU - Perfit, M R AU - Fornari, D J AU - Hart, S R AU - Smith, M C AU - Murrell, M T Y1 - 1997 PY - 1997 DA - 1997 SP - 194 PB - Lunar and Planetary Institute, Houston, TX VL - 921 SN - 0161-5297, 0161-5297 KW - East Pacific KW - volcanic rocks KW - isotopes KW - igneous rocks KW - variations KW - uranium disequilibrium KW - spatial variations KW - radioactive isotopes KW - metals KW - Pacific Ocean KW - mid-ocean ridge basalts KW - basalts KW - uranium KW - temporal distribution KW - East Pacific Rise KW - geochemistry KW - actinides KW - U-235 KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52233251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Spatial+and+temporal+variations+in+mid-ocean-ridge+basalt+geochemistry+along+the+East+Pacific+Rise+crest%3B+uranium-series+disequilibria%2C+radiogenic+isotopes%2C+and+elemental+variability+in+a+closely+spaced%2C+two-dimensional+grid+of+samples+from+9+degrees+48%27-52%27N&rft.au=Sims%2C+K+W+W%3BGoldstein%2C+S+J%3BPerfit%2C+M+R%3BFornari%2C+D+J%3BHart%2C+S+R%3BSmith%2C+M+C%3BMurrell%2C+M+T&rft.aulast=Sims&rft.aufirst=K+W&rft.date=1997-01-01&rft.volume=921&rft.issue=&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - actinides; basalts; East Pacific; East Pacific Rise; geochemistry; igneous rocks; isotopes; metals; mid-ocean ridge basalts; Pacific Ocean; radioactive isotopes; spatial variations; temporal distribution; U-235; uranium; uranium disequilibrium; variations; volcanic rocks ER - TY - RPRT T1 - Surface water and erosion calculations to support the MDA G performance assessment AN - 52163467; 2002-000164 AB - The performance of MDA G is dependent on surface hydrological and ecological processes because radionuclide transport by surface runoff can affect human and/or environmental receptors directly and the percolation for the subsurface radionuclide transport pathway is determined by the water balance in the near surface. For subsurface disposal of waste, surface soil erosion reduces the effectiveness of the surface cover and if wastes are exposed, then surface runoff can transport contaminants either in a soluble phase or sorbed to eroded soil particles. The objectives of this section are to estimate the effects at MDA G of surface runoff, soil erosion, and percolation. The conceptual and mathematical models will be reviewed, parameter estimation for the models will be presented and results and sensitivity analyses for a surface cover at MDA G will be presented. JF - Surface water and erosion calculations to support the MDA G performance assessment AU - Springer, E P Y1 - 1997 PY - 1997 DA - 1997 SP - 42 VL - LA-UR-96-4894 KW - soils KW - isotopes KW - erosion KW - pollutants KW - surface water KW - pollution KW - mathematical models KW - migration of elements KW - radioactive waste KW - radioactive isotopes KW - runoff KW - waste disposal KW - soil erosion KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52163467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Springer%2C+E+P&rft.aulast=Springer&rft.aufirst=E&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Surface+water+and+erosion+calculations+to+support+the+MDA+G+performance+assessment&rft.title=Surface+water+and+erosion+calculations+to+support+the+MDA+G+performance+assessment&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97003586NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Common-sense probabilistic approach to assessing inadvertent human intrusion into low-level radioactive waste at the Nevada Test Site AN - 52161681; 2002-000138 AB - Each site disposing of low-level radioactive waste is required to prepare and maintain a site-specific performance assessment (1) to determine potential risks posed by waste management systems to the public, and the environment, and (2) to compare these risks to established performance objectives. The DOE Nevada Operations Office, Waste Management Program recently completed a one-year study of site-specific scenarios for inadvertent human intrusion by drilling into buried low-level radioactive waste sites, as part of ongoing performance assessment studies. Intrusion scenarios focus on possible penetration of buried waste through drilling for sources of groundwater. The probability of drilling penetration into waste was judged to be driven primarily by two settlement scenarios: (1) scattered individual homesteaders, and (2) a community scenario consisting of a cluster of settlers that share drilling and distribution systems for groundwater. Management control factors include institutional control, site knowledge, placards and markers, surface barriers, and subsurface barriers. The Subject Matter Experts concluded that institutional control and site knowledge may be important factors for the first few centuries, but are not significant over the evaluation period of 10,000 years. Surface barriers can be designed that would deter the siting of a drill rig over the waste site to an effectiveness of 95%. Subsurface barriers and placards and markers will not as effectively prevent inadvertent human intrusion. Homestead and community scenarios were considered by the panel to render a site-specific probability of around 10% for inadvertent human intrusion. If management controls are designed and implemented effectively, then the probability of inadvertent human intrusion can be reduced to less than 1%. JF - Common-sense probabilistic approach to assessing inadvertent human intrusion into low-level radioactive waste at the Nevada Test Site AU - Black, P AU - Hooten, M AU - Black, K AU - Moore, B AU - Crowe, B Y1 - 1997 PY - 1997 DA - 1997 SP - 16 VL - LA-UR-97-728 | CONF-970335-46 KW - United States KW - aquifer vulnerability KW - toxic materials KW - human activity KW - pollution KW - radioactive waste KW - ground water KW - aquifers KW - waste management KW - Nevada Test Site KW - risk assessment KW - waste disposal KW - low-level waste KW - Nevada KW - disposal barriers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52161681?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Black%2C+P%3BHooten%2C+M%3BBlack%2C+K%3BMoore%2C+B%3BCrowe%2C+B&rft.aulast=Black&rft.aufirst=P&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Common-sense+probabilistic+approach+to+assessing+inadvertent+human+intrusion+into+low-level+radioactive+waste+at+the+Nevada+Test+Site&rft.title=Common-sense+probabilistic+approach+to+assessing+inadvertent+human+intrusion+into+low-level+radioactive+waste+at+the+Nevada+Test+Site&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97005000NEG, Springfield, VA, United States N1 - SuppNotes - Presented at Waste Management '97, Tucson, AZ, March 2-7, 1997; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Real-time alpha emitter assay of large volumes AN - 52043858; 2003-000361 AB - In this paper we discuss the design and behavior of a High Airflow Monitor (HAFM) based on Long-Range Alpha Detector (LRAD) technology (1). The low air resistance construction of the HAFM enables the high airflow crucial for assay of rooms, vaults, or cargo vehicles. This is accomplished by orienting plates parallel to the airflow rather than perpendicular, as are the grids in other LRADS. As will be shown in this paper, the advantages of an LRAD-based volume monitor are its inexpensive simplicity, ruggedness, and its ability to detect contamination that is hidden from traditional alpha detection methods such as Geiger-Muller, gas cell, or solid-state detectors. JF - Real-time alpha emitter assay of large volumes AU - Kerr, P L AU - Koster, J E AU - Macy, K AU - Cook, J Y1 - 1997 PY - 1997 DA - 1997 SP - 11 VL - LA-UR-96-3983 | CONF-970335-7 KW - soils KW - monitoring KW - detection KW - alpha-ray spectroscopy KW - radioactivity KW - pollutants KW - pollution KW - waste disposal KW - spectroscopy KW - instruments KW - radioactive waste KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52043858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Kerr%2C+P+L%3BKoster%2C+J+E%3BMacy%2C+K%3BCook%2C+J&rft.aulast=Kerr&rft.aufirst=P&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Real-time+alpha+emitter+assay+of+large+volumes&rft.title=Real-time+alpha+emitter+assay+of+large+volumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2003-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97001674NEG, Springfield, VA, United States N1 - SuppNotes - Presented at Waste Management '97, Tucson, AZ, United States, March 2-7, 1997; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Albuquerque, New Mexico, USA; a sunbelt city rapidly outgrowing its aquifer AN - 52029880; 2003-008431 JF - Proceedings of the ... IAH Congress on Groundwater... AU - Turin, H J AU - Gaume, A N AU - Bitner, M J AU - Hansen, H S AU - Titus, F B A2 - Chilton, John Y1 - 1997 PY - 1997 DA - 1997 SP - 677 EP - 680 PB - A.A.Balkema, Rotterdam VL - 27, Vol. 1 KW - water use KW - United States KW - water quality KW - water supply KW - Bernalillo County New Mexico KW - regulations KW - surface water KW - legislation KW - New Mexico KW - urbanization KW - ground water KW - aquifers KW - recharge KW - Albuquerque New Mexico KW - conservation KW - Rio Grande Valley KW - water rights KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52029880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+...+IAH+Congress+on+Groundwater...&rft.atitle=Albuquerque%2C+New+Mexico%2C+USA%3B+a+sunbelt+city+rapidly+outgrowing+its+aquifer&rft.au=Turin%2C+H+J%3BGaume%2C+A+N%3BBitner%2C+M+J%3BHansen%2C+H+S%3BTitus%2C+F+B&rft.aulast=Turin&rft.aufirst=H&rft.date=1997-01-01&rft.volume=27%2C+Vol.+1&rft.issue=&rft.spage=677&rft.isbn=9054109238&rft.btitle=&rft.title=Proceedings+of+the+...+IAH+Congress+on+Groundwater...&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - XXVII IAH congress on Groundwater in the urban environment N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 12 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #05134 N1 - SubjectsTermNotLitGenreText - Albuquerque New Mexico; aquifers; Bernalillo County New Mexico; conservation; ground water; legislation; New Mexico; recharge; regulations; Rio Grande Valley; surface water; United States; urbanization; water quality; water rights; water supply; water use ER - TY - JOUR T1 - Estimation of the fracture aperture and shape created by massive hydraulic fracturing test AN - 51933801; 2003-072902 AB - A hydraulic fracturing test was conducted in 1992 at the Hijiori hot dry rock test site. In this test, water was injected into injection well HDR-1. The depth of the injection well was about 2,200 m, and the maximum temperature of the well was about 270 degrees C. The main fracture, which was extended along natural joints, was initiated from the bottom hole and a radius of the fracture was estimated to be about 500 m from the acoustic emission observation. In this paper, the radius of the fracture, and the pressure, permeability and aperture distribution within the fracture was estimated by numerical simulation. The FEHM (Finite Element Heat and Mass transfer) code was used to estimate the radius of the growing fracture and a pressure distribution within the fracture. The Gangi bed-of-nails model was used to relate the fracture aperture to the fluid pressure. The permeability of the fracture was then calculated from the fracture aperture using Lomize's friction factor. A pressure history match between measured and calculated value was obtained. The simulation result shows that the radius of the fracture at the end of the experiment was about 500 m, which agrees well with observations. The estimated apertures of the fracture at the vicinity of the well were 1.4 mm and 2.6 mm when the injection water rates were kept constant at 6kg/s and 20 kg/s, respectively. In this simulation, three fitting parameters were used to match the pressure history. The sensitivities of three parameters on the simulation results were also examined. JF - Shigen to Sozai = Journal of the Mining and Materials Processing Institute of Japan AU - Yamashita, Mitsugu AU - Yamaguchi, Tsutomu AU - Kuriyagawa, Michio AU - Zyvoloski, George Y1 - 1997 PY - 1997 DA - 1997 SP - 247 EP - 253 PB - Shigen, Sozai Gakkai, Tokyo VL - 113 IS - 4 SN - 0916-1740, 0916-1740 KW - Far East KW - numerical models KW - in situ KW - statistical analysis KW - hot dry rocks KW - geothermal energy KW - fractures KW - finite element analysis KW - geothermal reservoirs KW - fluid injection KW - massive hydraulic fracturing KW - Asia KW - acoustical emissions KW - Japan KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51933801?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Shigen+to+Sozai+%3D+Journal+of+the+Mining+and+Materials+Processing+Institute+of+Japan&rft.atitle=Estimation+of+the+fracture+aperture+and+shape+created+by+massive+hydraulic+fracturing+test&rft.au=Yamashita%2C+Mitsugu%3BYamaguchi%2C+Tsutomu%3BKuriyagawa%2C+Michio%3BZyvoloski%2C+George&rft.aulast=Yamashita&rft.aufirst=Mitsugu&rft.date=1997-01-01&rft.volume=113&rft.issue=4&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Shigen+to+Sozai+%3D+Journal+of+the+Mining+and+Materials+Processing+Institute+of+Japan&rft.issn=09161740&rft_id=info:doi/ LA - Japanese DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acoustical emissions; Asia; Far East; finite element analysis; fluid injection; fractures; geothermal energy; geothermal reservoirs; hot dry rocks; in situ; Japan; massive hydraulic fracturing; numerical models; statistical analysis ER - TY - JOUR T1 - Heterogeneous property distribution within complex structure and stratigraphy for unsaturated zone solute transport modeling AN - 51807531; 2004-068184 JF - Eos, Transactions, American Geophysical Union AU - Gable, C W AU - Viswanathan, H S AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 279 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - solute transport KW - silicates KW - sorption KW - isotopes KW - kriging KW - data processing KW - unsaturated zone KW - preferential flow KW - fluid dynamics KW - simulation KW - radioactive waste KW - radioactive isotopes KW - zeolite group KW - framework silicates KW - Yucca Mountain KW - mobility KW - Nevada KW - pollutants KW - statistical analysis KW - pollution KW - porous materials KW - geostatistics KW - Nye County Nevada KW - geometry KW - models KW - computer programs KW - heterogeneous materials KW - waste disposal KW - underground disposal KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51807531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Heterogeneous+property+distribution+within+complex+structure+and+stratigraphy+for+unsaturated+zone+solute+transport+modeling&rft.au=Gable%2C+C+W%3BViswanathan%2C+H+S%3BAnonymous&rft.aulast=Gable&rft.aufirst=C&rft.date=1997-01-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - computer programs; data processing; fluid dynamics; framework silicates; geometry; geostatistics; heterogeneous materials; isotopes; kriging; mobility; models; Nevada; Nye County Nevada; permeability; pollutants; pollution; porous materials; preferential flow; radioactive isotopes; radioactive waste; silicates; simulation; solute transport; sorption; statistical analysis; underground disposal; United States; unsaturated zone; waste disposal; Yucca Mountain; zeolite group ER - TY - JOUR T1 - Modal analysis of soil moisture fields from a semiarid hillslope; dimension, patterns, and process AN - 51807289; 2004-068098 JF - Eos, Transactions, American Geophysical Union AU - Brandes, D AU - Duffy, C J AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 264 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - soils KW - hydrology KW - terrestrial environment KW - rainfall KW - moisture KW - variance analysis KW - statistical analysis KW - semi-arid environment KW - atmospheric precipitation KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - eigenvalues KW - simulation KW - evapotranspiration KW - measurement KW - saturation KW - snow KW - seasonal variations KW - reconstruction KW - meltwater KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51807289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Modal+analysis+of+soil+moisture+fields+from+a+semiarid+hillslope%3B+dimension%2C+patterns%2C+and+process&rft.au=Brandes%2C+D%3BDuffy%2C+C+J%3BAnonymous&rft.aulast=Brandes&rft.aufirst=D&rft.date=1997-01-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=264&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; eigenvalues; evapotranspiration; hydrology; Los Alamos County New Mexico; Los Alamos National Laboratory; measurement; meltwater; moisture; New Mexico; rainfall; reconstruction; saturation; seasonal variations; semi-arid environment; simulation; snow; soils; statistical analysis; terrestrial environment; United States; variance analysis ER - TY - JOUR T1 - Stochastic averaging of steady state unsaturated flow by means of Kirchoff transformation AN - 51806505; 2004-068181 JF - Eos, Transactions, American Geophysical Union AU - Tartakovsky, Daniel M AU - Neuman, Shlomo P AU - Lu, Zhiming AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 279 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - Monte Carlo analysis KW - statistical analysis KW - mathematical transformations KW - unsaturated zone KW - prediction KW - preferential flow KW - simulation KW - boundary conditions KW - ground water KW - aquifers KW - physical properties KW - Kirchoff transformation KW - stochastic processes KW - steady-state processes KW - hydraulic conductivity KW - uncertainty KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51806505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Stochastic+averaging+of+steady+state+unsaturated+flow+by+means+of+Kirchoff+transformation&rft.au=Tartakovsky%2C+Daniel+M%3BNeuman%2C+Shlomo+P%3BLu%2C+Zhiming%3BAnonymous&rft.aulast=Tartakovsky&rft.aufirst=Daniel&rft.date=1997-01-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; boundary conditions; ground water; hydraulic conductivity; Kirchoff transformation; mathematical transformations; Monte Carlo analysis; permeability; physical properties; prediction; preferential flow; simulation; statistical analysis; steady-state processes; stochastic processes; uncertainty; unsaturated zone ER - TY - JOUR T1 - Enhanced DNAPL extraction by low frequency pressure stimulation of a sand core during water flow AN - 51805691; 2004-068138 JF - Eos, Transactions, American Geophysical Union AU - Roberts, Peter M AU - Sharma, Arvind AU - Uddameri, Venkatesh AU - Monagle, Matthew AU - Dale, Don AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 273 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - chlorinated hydrocarbons KW - concentration KW - experimental studies KW - pressure KW - injection KW - geophysical methods KW - pollution KW - preferential flow KW - fluid dynamics KW - dense nonaqueous phase liquids KW - remediation KW - ground water KW - aquifers KW - nonaqueous phase liquids KW - laboratory studies KW - acoustical methods KW - organic compounds KW - transport KW - steady-state processes KW - halogenated hydrocarbons KW - trichloroethylene KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51805691?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Enhanced+DNAPL+extraction+by+low+frequency+pressure+stimulation+of+a+sand+core+during+water+flow&rft.au=Roberts%2C+Peter+M%3BSharma%2C+Arvind%3BUddameri%2C+Venkatesh%3BMonagle%2C+Matthew%3BDale%2C+Don%3BAnonymous&rft.aulast=Roberts&rft.aufirst=Peter&rft.date=1997-01-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical methods; aquifers; chlorinated hydrocarbons; concentration; dense nonaqueous phase liquids; experimental studies; fluid dynamics; geophysical methods; ground water; halogenated hydrocarbons; injection; laboratory studies; nonaqueous phase liquids; organic compounds; permeability; pollution; preferential flow; pressure; remediation; steady-state processes; transport; trichloroethylene ER - TY - JOUR T1 - Thermoelastic equation of state of jadeite NaAlSi (sub 2) O (sub 6) ; an energy-dispersive Reitveld refinement study of low symmetry and multiple phases diffraction AN - 51056781; 1997-020088 JF - Geophysical Research Letters AU - Zhao, Yusheng AU - Von Dreele, Robert B AU - Shankland, Thomas J AU - Weidner, Donald J AU - Zhang, Jianzhong AU - Wang, Yanbin AU - Gasparik, Tibor Y1 - 1997/01// PY - 1997 DA - January 1997 SP - 5 EP - 8 PB - American Geophysical Union, Washington, DC VL - 24 IS - 1 SN - 0094-8276, 0094-8276 KW - silicates KW - pressure KW - in situ KW - jadeite KW - thermoelastic properties KW - mantle KW - Birch-Murnaghan equation of state KW - elastic constants KW - bulk modulus KW - Rietveld refinement KW - high pressure KW - temperature KW - pyroxene group KW - clinopyroxene KW - Gruneisen parameters KW - equations of state KW - high temperature KW - chain silicates KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51056781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Thermoelastic+equation+of+state+of+jadeite+NaAlSi+%28sub+2%29+O+%28sub+6%29+%3B+an+energy-dispersive+Reitveld+refinement+study+of+low+symmetry+and+multiple+phases+diffraction&rft.au=Zhao%2C+Yusheng%3BVon+Dreele%2C+Robert+B%3BShankland%2C+Thomas+J%3BWeidner%2C+Donald+J%3BZhang%2C+Jianzhong%3BWang%2C+Yanbin%3BGasparik%2C+Tibor&rft.aulast=Zhao&rft.aufirst=Yusheng&rft.date=1997-01-01&rft.volume=24&rft.issue=1&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F96GL03769 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Birch-Murnaghan equation of state; bulk modulus; chain silicates; clinopyroxene; elastic constants; equations of state; Gruneisen parameters; high pressure; high temperature; in situ; jadeite; mantle; pressure; pyroxene group; Rietveld refinement; silicates; temperature; thermoelastic properties DO - http://dx.doi.org/10.1029/96GL03769 ER - TY - JOUR T1 - Luminescence dating of loess from the Northwest United States AN - 51052283; 1997-058235 JF - Quaternary Science Reviews AU - Richardson, C A AU - McDonald, E V AU - Busacca, A J A2 - Grun, R. A2 - Rose, J. A2 - Farrand, W. R. Y1 - 1997 PY - 1997 DA - 1997 SP - 403 EP - 415 PB - Pergamon, Oxford VL - 16 IS - 3-5 SN - 0277-3791, 0277-3791 KW - United States KW - volcanic rocks KW - isotopes KW - igneous rocks KW - thermoluminescence KW - infrared spectra KW - Cenozoic KW - Oregon KW - radioactive isotopes KW - geochronology KW - sampling KW - dates KW - carbon KW - sediments KW - absolute age KW - thickness KW - spectra KW - Washington KW - Quaternary KW - clastic sediments KW - southeastern Washington KW - northeastern Oregon KW - pyroclastics KW - sample preparation KW - loess KW - Columbia Plateau KW - C-14 KW - northwestern United States KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51052283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Science+Reviews&rft.atitle=Luminescence+dating+of+loess+from+the+Northwest+United+States&rft.au=Richardson%2C+C+A%3BMcDonald%2C+E+V%3BBusacca%2C+A+J&rft.aulast=Richardson&rft.aufirst=C&rft.date=1997-01-01&rft.volume=16&rft.issue=3-5&rft.spage=403&rft.isbn=&rft.btitle=&rft.title=Quaternary+Science+Reviews&rft.issn=02773791&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02773791 LA - English DB - GeoRef N1 - Conference title - 8th international conference on Luminescence and electron spin resonance dating N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. strat. cols., 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; C-14; carbon; Cenozoic; clastic sediments; Columbia Plateau; dates; geochronology; igneous rocks; infrared spectra; isotopes; loess; northeastern Oregon; northwestern United States; Oregon; pyroclastics; Quaternary; radioactive isotopes; sample preparation; sampling; sediments; southeastern Washington; spectra; thermoluminescence; thickness; United States; volcanic rocks; Washington ER - TY - JOUR T1 - Dating the Zuni-Bandera volcanic field AN - 50929925; 1998-030752 JF - Bulletin - New Mexico Bureau of Geology & Mineral Resources AU - Laughlin, A William AU - Woldegabriel, Giday AU - Mabery, Ken Y1 - 1997 PY - 1997 DA - 1997 SP - 25 EP - 30 PB - New Mexico Bureau of Mines and Mineral Resources, Socorro, NM VL - 156 SN - 0096-4581, 0096-4581 KW - United States KW - volcanic rocks KW - isotopes KW - igneous rocks KW - halogens KW - New Mexico KW - variations KW - uranium disequilibrium KW - Cenozoic KW - volcanic features KW - radioactive isotopes KW - dates KW - carbon KW - Cibola County New Mexico KW - absolute age KW - chlorine KW - El Malpais National Monument KW - lava flows KW - Cl-36 KW - Zuni-Bandera volcanic field KW - Mesozoic KW - Zuni Mountains KW - volcanic fields KW - He/He KW - K/Ar KW - C-14 KW - accuracy KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50929925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+-+New+Mexico+Bureau+of+Geology+%26+Mineral+Resources&rft.atitle=Dating+the+Zuni-Bandera+volcanic+field&rft.au=Laughlin%2C+A+William%3BWoldegabriel%2C+Giday%3BMabery%2C+Ken&rft.aulast=Laughlin&rft.aufirst=A&rft.date=1997-01-01&rft.volume=156&rft.issue=&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Bulletin+-+New+Mexico+Bureau+of+Geology+%26+Mineral+Resources&rft.issn=00964581&rft_id=info:doi/ L2 - http://geoinfo.nmt.edu/publications/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 15 N1 - PubXState - NM N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - NEXBAJ N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; C-14; carbon; Cenozoic; chlorine; Cibola County New Mexico; Cl-36; dates; El Malpais National Monument; halogens; He/He; igneous rocks; isotopes; K/Ar; lava flows; Mesozoic; New Mexico; radioactive isotopes; United States; uranium disequilibrium; variations; volcanic features; volcanic fields; volcanic rocks; Zuni Mountains; Zuni-Bandera volcanic field ER - TY - JOUR T1 - Photographic atlas of volcanic features AN - 50924609; 1998-030751 JF - Bulletin - New Mexico Bureau of Geology & Mineral Resources AU - Laughlin, A William AU - Perry, Frank V AU - Mabery, Ken Y1 - 1997 PY - 1997 DA - 1997 SP - 13 EP - 24 PB - New Mexico Bureau of Mines and Mineral Resources, Socorro, NM VL - 156 SN - 0096-4581, 0096-4581 KW - United States KW - stratovolcanoes KW - volcanic rocks KW - collapse structures KW - igneous rocks KW - New Mexico KW - photography KW - lava tubes KW - volcanic features KW - basalts KW - Cibola County New Mexico KW - pahoehoe KW - shield volcanoes KW - vesicular texture KW - El Malpais National Monument KW - lava flows KW - textures KW - shatter cones KW - cinder cones KW - craters KW - lava KW - cryptoexplosion features KW - volcanoes KW - aa lava KW - 23:Geomorphology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50924609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+-+New+Mexico+Bureau+of+Geology+%26+Mineral+Resources&rft.atitle=Photographic+atlas+of+volcanic+features&rft.au=Laughlin%2C+A+William%3BPerry%2C+Frank+V%3BMabery%2C+Ken&rft.aulast=Laughlin&rft.aufirst=A&rft.date=1997-01-01&rft.volume=156&rft.issue=&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Bulletin+-+New+Mexico+Bureau+of+Geology+%26+Mineral+Resources&rft.issn=00964581&rft_id=info:doi/ L2 - http://geoinfo.nmt.edu/publications/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 4 N1 - PubXState - NM N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NEXBAJ N1 - SubjectsTermNotLitGenreText - aa lava; basalts; Cibola County New Mexico; cinder cones; collapse structures; craters; cryptoexplosion features; El Malpais National Monument; igneous rocks; lava; lava flows; lava tubes; New Mexico; pahoehoe; photography; shatter cones; shield volcanoes; stratovolcanoes; textures; United States; vesicular texture; volcanic features; volcanic rocks; volcanoes ER - TY - JOUR T1 - Hydrogeology and groundwater chemistry in the Espanola Basin, north central New Mexico AN - 50327243; 1998-051939 AB - We are developing a conceptual model of groundwater flow and hydrogeochemistry in the Espanola Basin, a sub-basin in the Rio Grande rift system. The primary aquifer in the basin lies within the Santa Fe group, primarily composed of syn-rift alluvial sediments. Basin-scale flow is generally poorly understood, due to sparse hydrologic information, complex stratigraphy, and very thick sediments only partially penetrated by existing wells. In the western half of the basin, the Santa Fe group is buried by a thick layer of volcanics, including the rhyolitic Bandelier tuff. There is some evidence that high-permeability zones exist at depth. These trend north-south, parallel to the basin axis, and are possibly ancestral Rio Grande deposits. The existence of these deposits, along with numerous north-south trending faults which could be barriers to flow, have lead others to hypothesize a strong southerly component to basin-scale flow. Careful examination of head data, however, suggests that topographically driven flow predominates, primarily east-west in orientation in the southern two-thirds of the basin. The similarity of trace element concentrations and high sodium concentrations in deep wells along the Rio Grande to geothermal waters in the Jemez mountains to the west and Ojo Caliente area to the north suggests a geothermal component to upwelling waters along the axis of the basin. Mixing with geothermal waters may be fault controlled. Because of spatial trends in sediment provenance and mineralogy, weathering reactions may produce distinctive spatial trends in groundwater chemistry. For example, there are striking differences in water chemistry between deep waters beneath the Pajarito Plateau and waters elsewhere in the basin. Major ion ratios in plateau groundwaters are consistent with plagioclase, whereas most other waters have ratios consistent with calcite dissolution. Plateau groundwaters also have relatively high levels of dissolved silica. It is unclear whether this is partly due to recharge through the Bandelier Tuff, or due to subtle mineralogic differences between volcanic sediments beneath the tuff and volcanic sediments further to the north. JF - Abstracts with Programs - Geological Society of America AU - Keating, Elizabeth H AU - Becker, Naomi M AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 133 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - New Mexico KW - ions KW - ground water KW - Rio Grande Rift KW - Cenozoic KW - Santa Fe Group KW - mineral composition KW - Bandelier Tuff KW - mixing KW - movement KW - Ojo Caliente KW - Jemez Mountains KW - geochemistry KW - faults KW - Espanola Basin KW - North America KW - Quaternary KW - hydrochemistry KW - weathering KW - thermal waters KW - aquifers KW - models KW - provenance KW - Pleistocene KW - water wells KW - permeability KW - north-central New Mexico KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50327243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Hydrogeology+and+groundwater+chemistry+in+the+Espanola+Basin%2C+north+central+New+Mexico&rft.au=Keating%2C+Elizabeth+H%3BBecker%2C+Naomi+M%3BAnonymous&rft.aulast=Keating&rft.aufirst=Elizabeth&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1997 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; Bandelier Tuff; Cenozoic; Espanola Basin; faults; geochemistry; ground water; hydrochemistry; ions; Jemez Mountains; mineral composition; mixing; models; movement; New Mexico; North America; north-central New Mexico; Ojo Caliente; permeability; Pleistocene; provenance; Quaternary; Rio Grande Rift; Santa Fe Group; thermal waters; United States; water wells; weathering ER - TY - JOUR T1 - Elastic Properties of Laminated Calcium Aluminosilicate-Silicon Carbide Composites Determined by Resonant Ultrasound Spectroscopy AN - 19483144; 8391144 AB - The elastic properties of unidirectional and 0-90 crossply Nicalon-SiC-fiber-reinforced calcium aluminosilicate (CAS-SiC) ceramic-matrix composites have been measured using a resonant ultrasound spectroscopy (RUS) technique. This approach has allowed the nondestructive determination of the complete set of independent second-order elastic stiffness constants of these ceramic composites. These stiffness data have been used to obtain the orientation dependence of Young's modulus and the shear modulus. The results are in reasonably good agreement with the limited experimental data obtained from mechanical testing. The RUS measurements reveal that the unidirectional CAS-SiC composite is well modeled by transverse isotropic symmetry, indicating relatively isotropic fiber spacing in the transverse plane. The analysis indicates that the overall elastic anisotropy is also small for unidirectional and 0-90 laminated CAS ceramic-matrix composites, a result that can be attributed to the relatively low modulus ratio of the Nicalon SiC fiber to the CAS matrix and to the moderate fiber volume fraction. JF - Journal of the American Ceramic Society AU - Liu, Yongmei AU - He, Yi AU - Chu, Fuming AU - Mitchell, Terence E AU - Wadley, Haydn NG AD - Center for Materials Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 Y1 - 1997/01// PY - 1997 DA - Jan 1997 SP - 142 EP - 148 PB - American Ceramic Society, Inc., 735 Ceramic Place VL - 80 IS - 1 SN - 0002-7820, 0002-7820 KW - Biotechnology and Bioengineering Abstracts; Calcium & Calcified Tissue Abstracts KW - Ceramics KW - Fibers KW - Data processing KW - Calcium KW - Anisotropy KW - Spectroscopy KW - Ultrasound KW - Mechanical properties KW - W 30910:Imaging KW - T 2000:Cellular Calcium UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19483144?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Ceramic+Society&rft.atitle=Elastic+Properties+of+Laminated+Calcium+Aluminosilicate-Silicon+Carbide+Composites+Determined+by+Resonant+Ultrasound+Spectroscopy&rft.au=Liu%2C+Yongmei%3BHe%2C+Yi%3BChu%2C+Fuming%3BMitchell%2C+Terence+E%3BWadley%2C+Haydn+NG&rft.aulast=Liu&rft.aufirst=Yongmei&rft.date=1997-01-01&rft.volume=80&rft.issue=1&rft.spage=142&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Ceramic+Society&rft.issn=00027820&rft_id=info:doi/10.1111%2Fj.1151-2916.1997.tb02802.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-09-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Ceramics; Fibers; Anisotropy; Calcium; Data processing; Spectroscopy; Ultrasound; Mechanical properties DO - http://dx.doi.org/10.1111/j.1151-2916.1997.tb02802.x ER - TY - JOUR T1 - Thermal equation of state of monoclinic pyroxene; CaMgSi (sub 2) O (sub 6) diopside AN - 1819897463; 2016-078110 JF - Koatsu Toronkai Koen Yoshishu = Programme and Abstracts of Papers, High Pressure Conference of Japan AU - Zhao, Y AU - Von Dreele, R B AU - Zhang, J AU - Weidner, Donald J Y1 - 1997 PY - 1997 DA - 1997 SP - 181 PB - Nihon Koatsuryoku Gakkai, Osaka VL - 6 SN - 0917-6373, 0917-6373 KW - silicates KW - cell dimensions KW - pressure KW - X-ray diffraction data KW - thermoelastic properties KW - thermal properties KW - mantle KW - crystal structure KW - Rietveld refinement KW - high pressure KW - thermal expansion KW - temperature KW - pyroxene group KW - clinopyroxene KW - equations of state KW - diopside KW - compression KW - high temperature KW - chain silicates KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819897463?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Koatsu+Toronkai+Koen+Yoshishu+%3D+Programme+and+Abstracts+of+Papers%2C+High+Pressure+Conference+of+Japan&rft.atitle=Thermal+equation+of+state+of+monoclinic+pyroxene%3B+CaMgSi+%28sub+2%29+O+%28sub+6%29+diopside&rft.au=Zhao%2C+Y%3BVon+Dreele%2C+R+B%3BZhang%2C+J%3BWeidner%2C+Donald+J&rft.aulast=Zhao&rft.aufirst=Y&rft.date=1997-01-01&rft.volume=6&rft.issue=&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Koatsu+Toronkai+Koen+Yoshishu+%3D+Programme+and+Abstracts+of+Papers%2C+High+Pressure+Conference+of+Japan&rft.issn=09176373&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International conference on High pressure science and technology; joint conference AIRAPT-16 and HPCJ-38 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 2 N1 - Document feature - illus. N1 - Last updated - 2016-09-16 N1 - SubjectsTermNotLitGenreText - cell dimensions; chain silicates; clinopyroxene; compression; crystal structure; diopside; equations of state; high pressure; high temperature; mantle; pressure; pyroxene group; Rietveld refinement; silicates; temperature; thermal expansion; thermal properties; thermoelastic properties; X-ray diffraction data ER - TY - BOOK T1 - Subsurface microbiology; effects on the transport of radioactive wastes in the vadose zone AN - 1765879221; 2016-012908 JF - The microbiology of the terrestrial deep subsurface AU - Hersman, Larry E Y1 - 1997 PY - 1997 DA - 1997 PB - Lewis Publishers, Boca Raton, FL SN - 0849383625 KW - flocculation KW - high-level waste KW - sorption KW - colloidal materials KW - isotopes KW - geomicrobiology KW - complexing KW - unsaturated zone KW - solutes KW - pollution KW - migration of elements KW - adsorption KW - fluid dynamics KW - radioactive isotopes KW - transport KW - chelation KW - mobility KW - underground disposal KW - Eh KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Hersman%2C+Larry+E&rft.aulast=Hersman&rft.aufirst=Larry&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0849383625&rft.btitle=Subsurface+microbiology%3B+effects+on+the+transport+of+radioactive+wastes+in+the+vadose+zone&rft.title=Subsurface+microbiology%3B+effects+on+the+transport+of+radioactive+wastes+in+the+vadose+zone&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 136 N1 - PubXState - FL N1 - Document feature - 4 tables N1 - SuppNotes - Pieces: 4 N1 - Last updated - 2016-02-18 ER - TY - JOUR T1 - Characterization of deep evaporation in mesas at Los Alamos, New Mexico using environmental tracers and numerical modeling AN - 1645571352; 2015-002843 JF - Eos, Transactions, American Geophysical Union AU - Newman, Brent D AU - Birdsell, Kay H AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 1 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - terrestrial environment KW - mesas KW - isotopes KW - moisture KW - semi-arid environment KW - Pajarito Plateau KW - halogens KW - New Mexico KW - Los Alamos County New Mexico KW - erosion features KW - stable isotopes KW - ground water KW - Cenozoic KW - saturated zone KW - topography KW - Bandelier Tuff KW - chloride ion KW - movement KW - tracers KW - mobility KW - chlorine KW - migration KW - Quaternary KW - numerical models KW - pollutants KW - Los Alamos National Laboratory KW - depth KW - evaporation KW - Pleistocene KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645571352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Characterization+of+deep+evaporation+in+mesas+at+Los+Alamos%2C+New+Mexico+using+environmental+tracers+and+numerical+modeling&rft.au=Newman%2C+Brent+D%3BBirdsell%2C+Kay+H%3BAnonymous&rft.aulast=Newman&rft.aufirst=Brent&rft.date=1997-01-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=F318&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-15 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; Cenozoic; chloride ion; chlorine; depth; erosion features; evaporation; ground water; halogens; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; mesas; migration; mobility; moisture; movement; New Mexico; numerical models; Pajarito Plateau; Pleistocene; pollutants; Quaternary; saturated zone; semi-arid environment; stable isotopes; terrestrial environment; topography; tracers; United States ER - TY - BOOK T1 - The effect of urban canopy parameterizations on mesoscale meteorological model simulations in the Paso del Norte area AN - 16354084; 4281678 AB - Since mesoscale numerical models do not have the spatial resolution to directly simulate the fluid dynamics and thermodynamics in and around urban structures, urban canopy parameterizations are sometimes used to approximate the drag, heating, and enhanced turbulent kinetic energy (tke) produced by the sub-grid scale urban elements. In this paper, we investigate the effect of the urban canopy parameterizations used in the HOTMAC mesoscale meteorological model by turning the parameterizations on and off. The model simulations were performed in the Paso del Norte region, which includes the cities of El Paso and Ciudad Juarez, the Franklin and Sierra Juarez mountains, and the Rio Grande. The metropolitan area is surrounded by relatively barren scrubland and strips of vegetation along the Rio Grande. Results indicate that the urban canopy parameterizations do affect the mesoscale flow field, reducing the magnitude of wind speed and changing the magnitude of the sensible heat flux and tke in the metropolitan area. A nighttime heat island and a daytime cool island exist when urban canopy parameters are turned on, but associated recirculation flows are not readily apparent. Although model-computed solar and net radiation values look reasonable, the relationship between urban and rural longwave radiation fluxes does not agree with published measurements. JF - AIR & WASTE MANAGEMENT ASSOCIATION 90. ANNUAL MEETING. AU - Brown, MJ AU - Williams, MD Y1 - 1997 PY - 1997 DA - 1997 PB - AIR & WASTE MANAGEMENT ASSOCIATION, PITTSBURGH, PA 15222 (USA) KW - USA, Texas KW - Pollution Abstracts KW - 97-WA69.03 KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16354084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Pollution+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Brown%2C+MJ%3BWilliams%2C+MD&rft.aulast=Brown&rft.aufirst=MJ&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=The+effect+of+urban+canopy+parameterizations+on+mesoscale+meteorological+model+simulations+in+the+Paso+del+Norte+area&rft.title=The+effect+of+urban+canopy+parameterizations+on+mesoscale+meteorological+model+simulations+in+the+Paso+del+Norte+area&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Online access: http://www.awma.org/. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Biodegradation of paint stripper solvents in a modified gas lift loop bioreactor AN - 13627420; 199801448 AB - Two microbes, Hyphomicrobium sp strain DM-2 and Rhodococcus rhodochrous strain OFS, which between them can grow on all the major components found in paint strippers, were used in a gas lift loop bioreactor. Paint stripper 1 contained toluene, acetone and dichloromethane. Paint stripper 2 contained DCM, 2-propanol and methanol. Mass transfer coefficients and kinetic constants for biodegradation were determined. The hazardous organics bound to a solid medium were transferred into the reactor where they were destroyed in a closed loop system which produced water, carbon dioxide and biomass. A mathematical code, BIOLAB, was used to simulate coupled mass transfer and the biodegradation processes. JF - Biotechnology and Bioengineering AU - Vanderberg-Twary, L AU - Steenhoudt, K AU - Travis, B J AU - Hanners, J L AU - Foreman, T M AU - Brainard, J R AD - Los Alamos National Laboratory, N.Mex. Y1 - 1997 PY - 1997 DA - 1997 SP - 163 EP - 169 VL - 55 IS - 1 SN - 0006-3592, 0006-3592 KW - Hazard KW - Media KW - Methylene chloride KW - Modelling (-general-) KW - Strain (biological) KW - Aqualine Abstracts KW - AQ 00007:Industrial Effluents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13627420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+and+Bioengineering&rft.atitle=Biodegradation+of+paint+stripper+solvents+in+a+modified+gas+lift+loop+bioreactor&rft.au=Vanderberg-Twary%2C+L%3BSteenhoudt%2C+K%3BTravis%2C+B+J%3BHanners%2C+J+L%3BForeman%2C+T+M%3BBrainard%2C+J+R&rft.aulast=Vanderberg-Twary&rft.aufirst=L&rft.date=1997-01-01&rft.volume=55&rft.issue=1&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Biotechnology+and+Bioengineering&rft.issn=00063592&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Modelling in situ bioremediation of TCE at Savannah river: effects of product toxicity and microbial interactions on TCE degradation AN - 13621835; 199803583 AB - Bioremediation of subsurface trichloroethylene (TCE) contamination was effected by stimulating indigenous methanotrophic bacteria with injected methane, air and air-phase nutrients below the water table and vacuum extracting in the vadose zone. The process was modelled by TRAMPP, a numerical code which included both vadose and groundwater zones, unsteady air and water flow, limited nutrients and airborne nutrients in addition to toxicity, cometabolic kinetics, kinetic sorption and predator grazing. Lower residual levels of TCE were achieved and about 25 per cent more TCE was extracted or biodegraded than by air sparging and vacuum extraction alone. The efficiency of the remediation was influenced by the toxicity of TCE epoxides to the methanotrophs. Predation by protozoa probably explained the observed oscillations in the methanotroph population, although competition might also have been important; this is not considered. Neglecting the effects of predation could result in a 25 per cent over-estimate of TCE degradation. Because rapid biodegradation only took place where methanotrophs, TCE and substrate were all present, models which coupled subsurface flow and transport with microbial processes were important tools for evaluating field bioremediation in which the environment was heterogeneous. JF - Environmental Science & Technology AU - Travis, B J AU - Rosenberg, N D AD - Los Alamos National Laboratory, N. Mex. Y1 - 1997 PY - 1997 DA - 1997 SP - 3093 EP - 3102 VL - 31 IS - 11 SN - 0013-936X, 0013-936X KW - Epoxides KW - Methanotroph KW - Modelling (-general-) KW - Oscillation (see also pulsation) KW - Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13621835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Modelling+in+situ+bioremediation+of+TCE+at+Savannah+river%3A+effects+of+product+toxicity+and+microbial+interactions+on+TCE+degradation&rft.au=Travis%2C+B+J%3BRosenberg%2C+N+D&rft.aulast=Travis&rft.aufirst=B&rft.date=1997-01-01&rft.volume=31&rft.issue=11&rft.spage=3093&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Theoretical. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Rotation and magnetism of Earth's inner core AN - 52769449; 1997-010803 JF - Science AU - Glatzmaier, Gary A AU - Roberts, Paul H Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 1887 EP - 1891 PB - American Association for the Advancement of Science, Washington, DC VL - 274 IS - 5294 SN - 0036-8075, 0036-8075 KW - interior KW - magnetohydrodynamics KW - Earth KW - numerical models KW - three-dimensional models KW - mechanism KW - coupling KW - convection KW - thermal regime KW - magnetic field KW - outer core KW - motions KW - dynamics KW - synchronous motor mechanism KW - rotation KW - core KW - inner core KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52769449?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Rotation+and+magnetism+of+Earth%27s+inner+core&rft.au=Glatzmaier%2C+Gary+A%3BRoberts%2C+Paul+H&rft.aulast=Glatzmaier&rft.aufirst=Gary&rft.date=1996-12-01&rft.volume=274&rft.issue=5294&rft.spage=1887&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - convection; core; coupling; dynamics; Earth; inner core; interior; magnetic field; magnetohydrodynamics; mechanism; motions; numerical models; outer core; rotation; synchronous motor mechanism; thermal regime; three-dimensional models ER - TY - JOUR T1 - Minimum traveltime calculation in 3-D graph theory AN - 52760987; 1997-012557 AB - Traveltime calculation is a crucial part of seismic migration schemes, especially prestack migration. There are many different ways to compute traveltimes. These methods can be divided into three categories: (1) Ray tracing (Julian and Gubbins, 1977; Cerveny et al., 1977). These treat the problem as a initial value problem by shooting rays from the source to the receivers. Or they can also treat the problem as a two-point boundary value problem. An initial raypath is bent using perturbation theory until Fermat's principle is satisfied. Nichols (1994) also computed traveltimes with the amplitude information attached to it in two dimensions. (2) Finite-difference methods (Reshel and Kosloff, 1986; Vidale, 1988; van Trier and Symes, 1991). These solve the eikonal equation directly by using different numerical schemes such as the Runge-Kutta method, wavefront expansion, or upwind finite difference. (3) Graph theory (Moser, 1991; Fisher and Lees, 1993; Meng et al. 1994). This method recasts the traveltime problem into a shortest path search over a network, which is constructed from the velocity model. This method is guaranteed to find a stable minimum traveltime with any velocity model. JF - Geophysics AU - Cheng, Ningya AU - House, Leigh S Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 1895 EP - 1898 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 61 IS - 6 SN - 0016-8033, 0016-8033 KW - three-dimensional models KW - stacking KW - finite difference analysis KW - traveltime KW - statistical analysis KW - geophysical methods KW - velocity KW - elastic waves KW - seismic waves KW - seismic migration KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52760987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Minimum+traveltime+calculation+in+3-D+graph+theory&rft.au=Cheng%2C+Ningya%3BHouse%2C+Leigh+S&rft.aulast=Cheng&rft.aufirst=Ningya&rft.date=1996-12-01&rft.volume=61&rft.issue=6&rft.spage=1895&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.1444104 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 1997-01-01 N1 - Number of references - 12 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2013-05-16 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - elastic waves; finite difference analysis; geophysical methods; seismic methods; seismic migration; seismic waves; stacking; statistical analysis; three-dimensional models; traveltime; velocity DO - http://dx.doi.org/10.1190/1.1444104 ER - TY - JOUR T1 - Quartz-bearing basalts; oxygen isotopic evidence for crustal contamination of continental mafic rocks AN - 52760853; 1997-012516 AB - Oxygen isotopic compositions are presented of single and composite quartz grains from a lherzolite-bearing flow from Mt Taylor, New Mexico, USA. Delta (super 18) O values range 8.18-10.540/00 for single quartz grains, and 9.77-10.680/00 for the grain composites indicating that the quartz is crustal in origin. Delta (super 18) O for xenocrystic olivine and pyroxene ranges 4.95-5.390/00 and 4.99-5.220/00, respectively. The widespraed occurrence of quartz in basaltic rocks from continental settings indicates widespread crustal contamination, lherzolite-bearing basalts may measurably be contaminated by crust; for certain trace elements e.g. Rb, Th and U, compositions of basalts erupted through continental crust may not reflect mantle compositions. JF - Geochimica et Cosmochimica Acta AU - Baldridge, W Scott AU - Sharp, Zachary D AU - Reid, Kevin D Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 4765 EP - 4772 PB - Pergamon, Oxford VL - 60 IS - 23 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - Mount Taylor KW - volcanic rocks KW - oxygen KW - silica minerals KW - isotopes KW - igneous rocks KW - mantle KW - mafic composition KW - New Mexico KW - stable isotopes KW - basalts KW - framework silicates KW - rare earths KW - trace elements KW - upper mantle KW - alkaline earth metals KW - isotope ratios KW - magma contamination KW - O-18/O-16 KW - Nd-144/Nd-143 KW - Sr-87/Sr-86 KW - metals KW - quartz KW - neodymium KW - strontium KW - crust KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52760853?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Quartz-bearing+basalts%3B+oxygen+isotopic+evidence+for+crustal+contamination+of+continental+mafic+rocks&rft.au=Baldridge%2C+W+Scott%3BSharp%2C+Zachary+D%3BReid%2C+Kevin+D&rft.aulast=Baldridge&rft.aufirst=W&rft.date=1996-12-01&rft.volume=60&rft.issue=23&rft.spage=4765&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2896%2900264-5 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; basalts; crust; framework silicates; igneous rocks; isotope ratios; isotopes; mafic composition; magma contamination; mantle; metals; Mount Taylor; Nd-144/Nd-143; neodymium; New Mexico; O-18/O-16; oxygen; quartz; rare earths; silica minerals; silicates; Sr-87/Sr-86; stable isotopes; strontium; trace elements; United States; upper mantle; volcanic rocks DO - http://dx.doi.org/10.1016/S0016-7037(96)00264-5 ER - TY - JOUR T1 - Application of a soil-water balance model to evaluate the influence of Holocene climate change on calcic soils, Mojave Desert, California, U.S.A. AN - 52749076; 1997-019198 AB - We used a process-based soil-water balance model to simulate the downward flux of soil-water under varied conditions of climate, vegetation, and soil texture to determine the potential impact of episodic periods of wetter (pluvial) climate during the Holocene on calcic soils in the Mojave Desert that have a bimodal distribution of carbonate. Daily weather data associated with a relatively "wet" climate (years with extreme increases in annual rainfall, approximately 33 cm/yr) and "dry" climate (historic average annual rainfall, approximately 15 cm/yr) was used to simulate the affects of Pleistocene and Holocene climate change on soil-water balance. Linkages among atmospheric circulation patterns, regional increases in precipitation, and historic flooding in the Mojave Desert, California, suggest that historic wet years provide an analog for wetter climates that occurred during the last glacial period (latest Pleistocene) and episodically during Holocene periods of pluvial activity. Modeling results indicate that soil-water balance for dry and wet years strongly corresponds with the upper and lower zones of carbonate accumulation respectively. Soil-water only reached the lower zone of carbonate during a wet year when extreme increases in winter/spring storm activity resulted in a significant increase in precipitation and the downward flux of soil water. The linkage between increases in frontal storm activity and pluvial events suggests that the shallow zone of the bimodal distribution of carbonate is a result of periods of significant decreases in winter and spring rainfall and not primarily due to increases in Holocene temperature or the development of clay-rich horizons. Calculation of carbonate solubility and accumulation rates suggests that the bimodal distribution of carbonates in soils may have also been impacted by episodic periods of extreme increases in precipitation associated with perennial lakes during the Holocene. Results suggests that much of the carbonate in the upper 75 cm of Pleistocene soils may have accumulated during the late Holocene rather than throughout the entire Holocene. JF - Geoderma AU - McDonald, Eric V AU - Pierson, Frederick B AU - Flerchinger, Gerald N AU - McFadden, Leslie D Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 167 EP - 192 PB - Elsevier, Amsterdam VL - 74 IS - 3-4 SN - 0016-7061, 0016-7061 KW - United States KW - eolian features KW - cycles KW - terrestrial environment KW - paleoclimatology KW - Holocene KW - deserts KW - Cenozoic KW - California KW - Mojave Desert KW - climate effects KW - water regimes KW - San Bernardino County California KW - soils KW - Quaternary KW - arid environment KW - calcic composition KW - water balance KW - models KW - calcareous composition KW - Southern California KW - pluvial environment KW - carbonates KW - SHAW model KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52749076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geoderma&rft.atitle=Application+of+a+soil-water+balance+model+to+evaluate+the+influence+of+Holocene+climate+change+on+calcic+soils%2C+Mojave+Desert%2C+California%2C+U.S.A.&rft.au=McDonald%2C+Eric+V%3BPierson%2C+Frederick+B%3BFlerchinger%2C+Gerald+N%3BMcFadden%2C+Leslie+D&rft.aulast=McDonald&rft.aufirst=Eric&rft.date=1996-12-01&rft.volume=74&rft.issue=3-4&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Geoderma&rft.issn=00167061&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167061 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 55 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GEDMAB N1 - SubjectsTermNotLitGenreText - arid environment; calcareous composition; calcic composition; California; carbonates; Cenozoic; climate effects; cycles; deserts; eolian features; Holocene; models; Mojave Desert; paleoclimatology; pluvial environment; Quaternary; San Bernardino County California; SHAW model; soils; Southern California; terrestrial environment; United States; water balance; water regimes ER - TY - JOUR T1 - On the theory of the geodynamo AN - 52746395; 1997-021274 AB - I trace the development of geodynamo theory leading from Larmor's original hypothesis (Larmor, 1919, Rep. Br. Assoc. Adv. Sci., A, 159-160) to the present. I consider a number of kinematic results, from Cowling's proof (Cowling, 1934, Mon. Not. R. Astron. Soc., 94: 39-48) that two-dimensional dynamo action is not possible, to the proofs by Backus (1958, Ann. Phys., 4: 372-447) and Herzenberg (1958, Philos. Trans. R. Soc. London, Ser. A, 250: 543-585) that three-dimensional dynamo action is possible. I next turn to various mean-field and convective models in which the fluid flow is no longer kinematically prescribed, but is itself dynamically determined. In these dynamical models, I describe the distinction between weak and strong field regimes that comes about owing to the effect of the field on the pattern of convection in a rapidly rotating system. I consider the dynamics of Taylor's constraint (Taylor, 1963, Proc. R. Soc. London, Ser. A, 274: 274-283), and demonstrate how it makes the analysis of the geophysically appropriate strong field regime particularly difficult. JF - Physics of the Earth and Planetary Interiors AU - Hollerbach, Rainer A2 - Constable, Catherine G. A2 - Parker, Robert L. Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 163 EP - 185 PB - Elsevier, Amsterdam VL - 98 IS - 3-4 SN - 0031-9201, 0031-9201 KW - kinematics KW - theoretical studies KW - three-dimensional models KW - mathematical methods KW - dynamos KW - core KW - equations KW - fluid dynamics KW - convection KW - magnetic field KW - two-dimensional models KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52746395?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+of+the+Earth+and+Planetary+Interiors&rft.atitle=On+the+theory+of+the+geodynamo&rft.au=Hollerbach%2C+Rainer&rft.aulast=Hollerbach&rft.aufirst=Rainer&rft.date=1996-12-01&rft.volume=98&rft.issue=3-4&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 92 N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - convection; core; dynamos; equations; fluid dynamics; kinematics; magnetic field; mathematical methods; theoretical studies; three-dimensional models; two-dimensional models ER - TY - JOUR T1 - On the magnetic sounding of planetary interiors AN - 52740251; 1997-021277 AB - Two ways have been suggested for using the magnetic field of a planet to estimate the radius of its electrically conducting core, assumed spherical and concentric with the planet's surface. In the frozen flux method, the core radius is assumed to have the value r (sub FF) for which the integrated unsigned radial magnetic flux, from the sphere of that radius, is most nearly constant in time. In the flat spectrum method, the core radius is assumed to have the value r (sub FS) for which the power spectrum of the field, defined as the mean square energy density in the lth spherical harmonic component of the field at that radius, is most nearly independent of l. These two methods are here applied to a new geodynamo integration that is a continuation of a recently published simulation (see Glatzmaier and Roberts, 1995a, Phys. Earth Planet. Inter., 91: 63-75; Glatzmaier and Roberts, 1995b, Nature, 377: 203-209) and which, like the Earth, maintains a more strongly dipole dominated magnetic field. The rate of change of the unsigned flux was averaged over two different 300 year intervals at a number of radii, r, from the geocenter. The resulting functions of r were found to have zeros at r (sub FF) of approximately 3550 km and 3477 km, respectively. This demonstrates how sensitive this method is to the time interval selected for the computation. Even if, as is often done when the flat spectrum method is applied to the Earth, the centered dipole (l = 1) is excluded, the spectrum of our model could not be made convincingly flat; but a radius r (sub FS) at which it is most flat can be defined. The value of r (sub FS) is, however, very sensitive to the number of spherical harmonics retained in the spectrum and to a lesser extent is time dependent. On the basis of these studies, and impressed by the lack of a sound physical justification for the flat spectrum method, we conclude that that method provides a less certain way of estimating the radius of a planetary core than does the frozen flux approximation, and that even the latter should be employed with caution. JF - Physics of the Earth and Planetary Interiors AU - Glatzmaier, Gary A AU - Roberts, Paul H A2 - Constable, Catherine G. A2 - Parker, Robert L. Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 207 EP - 220 PB - Elsevier, Amsterdam VL - 98 IS - 3-4 SN - 0031-9201, 0031-9201 KW - interior KW - electrical conductivity KW - density KW - dynamos KW - equations KW - fluid dynamics KW - magnetic field KW - time factor KW - sphericity KW - mathematical methods KW - core KW - dipole moment KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52740251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+of+the+Earth+and+Planetary+Interiors&rft.atitle=On+the+magnetic+sounding+of+planetary+interiors&rft.au=Glatzmaier%2C+Gary+A%3BRoberts%2C+Paul+H&rft.aulast=Glatzmaier&rft.aufirst=Gary&rft.date=1996-12-01&rft.volume=98&rft.issue=3-4&rft.spage=207&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 38 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - core; density; dipole moment; dynamos; electrical conductivity; equations; fluid dynamics; interior; magnetic field; mathematical methods; sphericity; time factor ER - TY - JOUR T1 - Soil morphology of canopy and intercanopy sites in a pinon-juniper woodlands AN - 52611880; 1998-030638 JF - Soil Science Society of America Journal AU - Davenport, David W AU - Wilcox, Bradford P AU - Breshears, David D Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 1881 EP - 1887 PB - Soil Science Society of America, Madison, WI VL - 60 IS - 6 SN - 0361-5995, 0361-5995 KW - United States KW - terrestrial environment KW - volcanic rocks KW - erosion KW - igneous rocks KW - semi-arid environment KW - New Mexico KW - Los Alamos County New Mexico KW - vegetation KW - carbon KW - sediments KW - thickness KW - residuum KW - tuff KW - soil erosion KW - organic carbon KW - soils KW - forests KW - pedogenesis KW - clastic sediments KW - Los Alamos National Laboratory KW - morphology KW - pyroclastics KW - biogenic processes KW - erosion control KW - parent materials KW - alluvium KW - causes KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52611880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Soil+morphology+of+canopy+and+intercanopy+sites+in+a+pinon-juniper+woodlands&rft.au=Davenport%2C+David+W%3BWilcox%2C+Bradford+P%3BBreshears%2C+David+D&rft.aulast=Davenport&rft.aufirst=David&rft.date=1996-12-01&rft.volume=60&rft.issue=6&rft.spage=1881&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 36 N1 - PubXState - WI N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - alluvium; biogenic processes; carbon; causes; clastic sediments; erosion; erosion control; forests; igneous rocks; Los Alamos County New Mexico; Los Alamos National Laboratory; morphology; New Mexico; organic carbon; parent materials; pedogenesis; pyroclastics; residuum; sediments; semi-arid environment; soil erosion; soils; terrestrial environment; thickness; tuff; United States; vegetation; volcanic rocks ER - TY - JOUR T1 - Waste site characterization through digital analysis of historical aerial photographs AN - 52554748; 1998-063853 JF - Photogrammetric Engineering and Remote Sensing AU - Pope, Paul AU - Van Eeckhout, Ed AU - Rofer, Cheryl Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 1387 EP - 1394 PB - American Society of Photogrammetry, Falls Church, VA VL - 62 IS - 12 SN - 0099-1112, 0099-1112 KW - United States KW - hazardous waste KW - monitoring KW - site exploration KW - landfills KW - data processing KW - waste disposal sites KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - geographic information systems KW - digital simulation KW - aerial photography KW - information systems KW - north-central New Mexico KW - image analysis KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52554748?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Photogrammetric+Engineering+and+Remote+Sensing&rft.atitle=Waste+site+characterization+through+digital+analysis+of+historical+aerial+photographs&rft.au=Pope%2C+Paul%3BVan+Eeckhout%2C+Ed%3BRofer%2C+Cheryl&rft.aulast=Pope&rft.aufirst=Paul&rft.date=1996-12-01&rft.volume=62&rft.issue=12&rft.spage=1387&rft.isbn=&rft.btitle=&rft.title=Photogrammetric+Engineering+and+Remote+Sensing&rft.issn=00991112&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 15 N1 - PubXState - VA N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2013-06-13 N1 - SubjectsTermNotLitGenreText - aerial photography; data processing; digital simulation; geographic information systems; hazardous waste; image analysis; information systems; landfills; Los Alamos County New Mexico; Los Alamos National Laboratory; monitoring; New Mexico; north-central New Mexico; remote sensing; site exploration; United States; waste disposal sites ER - TY - JOUR T1 - Geochemistry of Lechuguilla Cave pool water AN - 1855318466; 2017-000029 JF - Journal of Cave and Karst Studies AU - Turin, Jake AU - Plummer, Mitch AU - Anonymous Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 206 PB - National Speleological Society, Huntsville, AL VL - 58 IS - 3 SN - 1090-6924, 1090-6924 KW - United States KW - speleothems KW - Carlsbad Caverns KW - Eddy County New Mexico KW - caves KW - New Mexico KW - hydrochemistry KW - ground water KW - precipitation KW - Lechuguilla Cave KW - solution features KW - geochemistry KW - 23:Geomorphology KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855318466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Cave+and+Karst+Studies&rft.atitle=Geochemistry+of+Lechuguilla+Cave+pool+water&rft.au=Turin%2C+Jake%3BPlummer%2C+Mitch%3BAnonymous&rft.aulast=Turin&rft.aufirst=Jake&rft.date=1996-12-01&rft.volume=58&rft.issue=3&rft.spage=206&rft.isbn=&rft.btitle=&rft.title=Journal+of+Cave+and+Karst+Studies&rft.issn=10906924&rft_id=info:doi/ L2 - https://caves.org/pub/journal/PDF/V58/V58N3-Abstracts.pdf http://www.caves.org/pub/journal/ LA - English DB - GeoRef N1 - Conference title - 1996 National Speleological Society national convention N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - PubXState - AL N1 - Last updated - 2017-01-05 N1 - SubjectsTermNotLitGenreText - Carlsbad Caverns; caves; Eddy County New Mexico; geochemistry; ground water; hydrochemistry; Lechuguilla Cave; New Mexico; precipitation; solution features; speleothems; United States ER - TY - JOUR T1 - Tritium in Lechuguilla pool water; implications for recharge processes AN - 1855318253; 2017-000031 JF - Journal of Cave and Karst Studies AU - Turin, Jake AU - Plummer, Mitch AU - Anonymous Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 206 EP - 207 PB - National Speleological Society, Huntsville, AL VL - 58 IS - 3 SN - 1090-6924, 1090-6924 KW - United States KW - concentration KW - Carlsbad Caverns KW - isotopes KW - Eddy County New Mexico KW - karst hydrology KW - unsaturated zone KW - tritium KW - New Mexico KW - hydrochemistry KW - ground water KW - recharge KW - radioactive isotopes KW - hydrogen KW - tracers KW - Lechuguilla Cave KW - geochemistry KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855318253?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Cave+and+Karst+Studies&rft.atitle=Tritium+in+Lechuguilla+pool+water%3B+implications+for+recharge+processes&rft.au=Turin%2C+Jake%3BPlummer%2C+Mitch%3BAnonymous&rft.aulast=Turin&rft.aufirst=Jake&rft.date=1996-12-01&rft.volume=58&rft.issue=3&rft.spage=206&rft.isbn=&rft.btitle=&rft.title=Journal+of+Cave+and+Karst+Studies&rft.issn=10906924&rft_id=info:doi/ L2 - https://caves.org/pub/journal/PDF/V58/V58N3-Abstracts.pdf http://www.caves.org/pub/journal/ LA - English DB - GeoRef N1 - Conference title - 1996 National Speleological Society national convention N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - PubXState - AL N1 - Last updated - 2017-01-05 N1 - SubjectsTermNotLitGenreText - Carlsbad Caverns; concentration; Eddy County New Mexico; geochemistry; ground water; hydrochemistry; hydrogen; isotopes; karst hydrology; Lechuguilla Cave; New Mexico; radioactive isotopes; recharge; tracers; tritium; United States; unsaturated zone ER - TY - JOUR T1 - Colloid transport in fractures and packed columns AN - 1765873000; 2016-010298 JF - Eos (Washington, DC) AU - Reimus, Paul W AU - Anonymous Y1 - 1996/11/12/ PY - 1996 DA - 1996 Nov 12 SP - 214 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - fractured materials KW - colloidal materials KW - pollutants KW - pollution KW - electrochemical properties KW - physical models KW - ground water KW - transport KW - tracers KW - chemical properties KW - hydrodynamics KW - geochemistry KW - pore water KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos+%28Washington%2C+DC%29&rft.atitle=Colloid+transport+in+fractures+and+packed+columns&rft.au=Reimus%2C+Paul+W%3BAnonymous&rft.aulast=Reimus&rft.aufirst=Paul&rft.date=1996-11-12&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=214&rft.isbn=&rft.btitle=&rft.title=Eos+%28Washington%2C+DC%29&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chemical properties; colloidal materials; electrochemical properties; fractured materials; geochemistry; ground water; hydrodynamics; physical models; pollutants; pollution; pore water; tracers; transport ER - TY - JOUR T1 - The importance of long-term runoff monitoring in semiarid environments AN - 1765871278; 2016-010171 JF - Eos (Washington, DC) AU - Newman, Brent D AU - Wilcox, Bradford P AU - Anonymous Y1 - 1996/11/12/ PY - 1996 DA - 1996 Nov 12 SP - 189 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - hydrology KW - terrestrial environment KW - monitoring KW - oxygen KW - isotopes KW - isotope ratios KW - surface water KW - semi-arid environment KW - atmospheric precipitation KW - O-18/O-16 KW - New Mexico KW - Los Alamos County New Mexico KW - water balance KW - preferential flow KW - hydrochemistry KW - stable isotopes KW - ground water KW - D/H KW - hydrogen KW - runoff KW - tracers KW - geochemistry KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos+%28Washington%2C+DC%29&rft.atitle=The+importance+of+long-term+runoff+monitoring+in+semiarid+environments&rft.au=Newman%2C+Brent+D%3BWilcox%2C+Bradford+P%3BAnonymous&rft.aulast=Newman&rft.aufirst=Brent&rft.date=1996-11-12&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Eos+%28Washington%2C+DC%29&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; D/H; geochemistry; ground water; hydrochemistry; hydrogen; hydrology; isotope ratios; isotopes; Los Alamos County New Mexico; monitoring; New Mexico; O-18/O-16; oxygen; preferential flow; runoff; semi-arid environment; stable isotopes; surface water; terrestrial environment; tracers; United States; water balance ER - TY - JOUR T1 - Using water chemistry and stable isotope data to constrain groundwater flow paths in the deep aquifer of the Pajarito Plateau in north central New Mexico AN - 1765871141; 2016-010213 JF - Eos (Washington, DC) AU - Becker, Naomi AU - Keating, Elizabeth H AU - Anonymous Y1 - 1996/11/12/ PY - 1996 DA - 1996 Nov 12 SP - 201 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - rhyolites KW - volcanic rocks KW - oxygen KW - isotopes KW - isotope ratios KW - igneous rocks KW - San Juan County New Mexico KW - Pajarito Plateau KW - O-18/O-16 KW - New Mexico KW - preferential flow KW - hydrochemistry KW - stable isotopes KW - ground water KW - aquifers KW - transport KW - tracers KW - dacites KW - chemical composition KW - geochemistry KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos+%28Washington%2C+DC%29&rft.atitle=Using+water+chemistry+and+stable+isotope+data+to+constrain+groundwater+flow+paths+in+the+deep+aquifer+of+the+Pajarito+Plateau+in+north+central+New+Mexico&rft.au=Becker%2C+Naomi%3BKeating%2C+Elizabeth+H%3BAnonymous&rft.aulast=Becker&rft.aufirst=Naomi&rft.date=1996-11-12&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Eos+%28Washington%2C+DC%29&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; chemical composition; dacites; geochemistry; ground water; hydrochemistry; igneous rocks; isotope ratios; isotopes; New Mexico; O-18/O-16; oxygen; Pajarito Plateau; preferential flow; rhyolites; San Juan County New Mexico; stable isotopes; tracers; transport; United States; volcanic rocks ER - TY - JOUR T1 - Redistribution of Pb and other volatile trace metals during eruption, devitrification, and vapor-phase crystallization of the Bandelier Tuff, New Mexico AN - 52773543; 1997-012775 AB - A diverse suite of micron-scale minerals was deposited from vapor during eruption and post-emplacement crystallization of the Bandelier Tuff, New Mexico. The mineral suite is rich in sulfides, oxides, and chlorides of both common and rare metals (e.g., Fe, Pb, Bi, Cu, Ag, Re), and oxides and silicates of incompatible elements (e.g., P, Zr, Y, Nb, Ba and LREE). Minerals preserved in glassy samples grew from magmatic vapor trapped during emplacement, or from vapor migrating along contacts with more impermeable rocks; minerals observed in devitrified samples also grew from crystallization of glass and vapor liberated during this process. In devitrified samples, mafic silicate phenocrysts were partially replaced by an assemblage dominated by smectite and hematite. The syn- to post-eruptive mineral assemblage observed in upper Bandelier Tuff (UBT) samples bears striking similarity to those deposited by cooling gases near active volcanic vents. However, several differences exist: (1) the mineral suite in the UBT is disseminated throughout the unit, and formed over a broad temperature range (>700 to <150 degrees C) at higher rock:gas ratios; (2) the highly evolved composition of the UBT yielded a greater abundance of minerals rich in incompatible elements compared to sublimates from less evolved volcanoes; and (3) the UBT has suffered over 1 million years of post-emplacement exposure, which resulted in solution (or local re-precipitation in fractures) of soluble compounds such as halite, sylvite, and gypsum. Pb was enriched toward the roof of the UBT magma body due to its affinity for the melt and vapor phases relative to crystals (Bulk D (sub Pb) <0.2). Micron-scale Pb minerals appear to have grown from vapor exsolved during eruption, as well as vapor liberated during later devitrification. Additional Pb was scavenged by smectite and hematite that probably formed during the later stages of the devitrification and cooling process. Up to ten-fold increases in Pb concentrations are seen in zones of fumarolic concentration in the UBT, however, most bulk tuff samples have Pb values that appear to preserve magmatic values, indicating only very local trace-metal redistribution. The concentration of Pb and other heavy metals in micron-scale mineral coatings in porous tuff indicates that these metals could be readily mobilized and transported by acidic groundwaters or hydrothermal fluids, and thus locally concentrated into ore-grade deposits in long-lived systems. JF - Journal of Volcanology and Geothermal Research AU - Stimac, James AU - Hickmott, Donald AU - Abell, Russell AU - Larocque, Adrienne C L AU - Broxton, David AU - Gardner, Jamie AU - Chipera, Steve J AU - Wolff, John A AU - Gauerke, Eric Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 245 EP - 266 PB - Elsevier, Amsterdam VL - 73 IS - 3-4 SN - 0377-0273, 0377-0273 KW - United States KW - silicates KW - Pajarito Plateau KW - New Mexico KW - melts KW - Cenozoic KW - Bandelier Tuff KW - hematite KW - volcanism KW - oxides KW - Jemez Mountains KW - mineral assemblages KW - trace elements KW - geochemistry KW - degassing KW - Quaternary KW - smectite KW - clay minerals KW - magmas KW - eruptions KW - volcanoes KW - Pleistocene KW - crystallization KW - sheet silicates KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52773543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Redistribution+of+Pb+and+other+volatile+trace+metals+during+eruption%2C+devitrification%2C+and+vapor-phase+crystallization+of+the+Bandelier+Tuff%2C+New+Mexico&rft.au=Stimac%2C+James%3BHickmott%2C+Donald%3BAbell%2C+Russell%3BLarocque%2C+Adrienne+C+L%3BBroxton%2C+David%3BGardner%2C+Jamie%3BChipera%2C+Steve+J%3BWolff%2C+John+A%3BGauerke%2C+Eric&rft.aulast=Stimac&rft.aufirst=James&rft.date=1996-11-01&rft.volume=73&rft.issue=3-4&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2F0377-0273%2896%2900024-8 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 72 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; Cenozoic; clay minerals; crystallization; degassing; eruptions; geochemistry; hematite; Jemez Mountains; magmas; melts; mineral assemblages; New Mexico; oxides; Pajarito Plateau; Pleistocene; Quaternary; sheet silicates; silicates; smectite; trace elements; United States; volcanism; volcanoes DO - http://dx.doi.org/10.1016/0377-0273(96)00024-8 ER - TY - JOUR T1 - Late Pleistocene landslide-dammed lakes along the Rio Grande, White Rock Canyon, New Mexico AN - 52770166; 1997-002404 AB - Massive slump complexes composed of Pliocene basaltic rocks and underlying Miocene and Pliocene sediments flank the Rio Grande along 16 km of northern White Rock Canyon, New Mexico. The toe area of at least one slump complex was active in the late Pleistocene, damming the Rio Grande at least four times during the period from 18 to 12 14C ka and impounding lakes that extended 10-20 km upriver. Stratigraphic relationships and radiocarbon age constraints indicate that three separate lakes formed between 13.7 and 12.4 14C ka. The age and dimensions of the ca. 12.4 ka lake are best constrained; it had an estimated maximum depth of nearly equal 30 m, a length of nearly equal 13 km, a surface area of nearly equal 2.7 km (super 2) , and an initial volume of nearly equal 2.5 X 107 m (super 3) . The landslide dam responsible for this lake was apparently stable, and the lake filled completely with laminated silt-rich lacustrine sediment and overlying coarse sands and gravels that represent bed load of the Rio Grande. A lake that formed at or =43 14C ka) landslide-dammed lake is less well constrained, but it had a maximum depth of at least 57 m, an estimated minimum length of 25 km, and a surface area of 25 km (super 2) . Deposition of coarse sands and gravels of the Rio Grande over lacustrine sediments indicates that the landslide dam responsible for this older lake also was stable; extrapolation of historic Rio Grande sediment yield data suggests that this lake persisted for 100-1000 yr. The stability of the dam may have been due to armoring of the outflow channel with basalt boulders. The youngest landslide-dammed lakes formed during a period of significantly wetter regional climate, strongly suggesting that climate changes were responsible for reactivation of the slump complexes. We are not certain about the exact triggering mechanisms for these landslides, but they probably involved removal of lateral support due to erosion of the slope base by the Rio Grande during periods of exceptionally high flood discharge or rapid incision; increased pore pressures associated with higher water tables; higher seepage forces at sites of ground-water discharge; or some combination of these processes. Seismic shaking could also have contributed to triggering of some of the landslides, particularly if aided by wet antecedent conditions. JF - Geological Society of America Bulletin AU - Reneau, Steven L AU - Dethier, David P Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1492 EP - 1507 PB - Geological Society of America (GSA), Boulder, CO VL - 108 IS - 11 SN - 0016-7606, 0016-7606 KW - United States KW - White Rock Canyon KW - New Mexico KW - Los Alamos County New Mexico KW - paleoclimatology KW - upper Pleistocene KW - Cenozoic KW - mass movements KW - dams KW - climate effects KW - Santa Fe County New Mexico KW - lacustrine sedimentation KW - Rio Grande KW - Quaternary KW - northern New Mexico KW - sedimentation KW - paleogeography KW - fluvial sedimentation KW - natural dams KW - slumping KW - landslides KW - extinct lakes KW - fluviolacustrine sedimentation KW - Pleistocene KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52770166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+of+America+Bulletin&rft.atitle=Late+Pleistocene+landslide-dammed+lakes+along+the+Rio+Grande%2C+White+Rock+Canyon%2C+New+Mexico&rft.au=Reneau%2C+Steven+L%3BDethier%2C+David+P&rft.aulast=Reneau&rft.aufirst=Steven&rft.date=1996-11-01&rft.volume=108&rft.issue=11&rft.spage=1492&rft.isbn=&rft.btitle=&rft.title=Geological+Society+of+America+Bulletin&rft.issn=00167606&rft_id=info:doi/10.1130%2F0016-7606%281996%291082.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1997-01-01 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - BUGMAF N1 - SubjectsTermNotLitGenreText - Cenozoic; climate effects; dams; extinct lakes; fluvial sedimentation; fluviolacustrine sedimentation; lacustrine sedimentation; landslides; Los Alamos County New Mexico; mass movements; natural dams; New Mexico; northern New Mexico; paleoclimatology; paleogeography; Pleistocene; Quaternary; Rio Grande; Santa Fe County New Mexico; sedimentation; slumping; United States; upper Pleistocene; White Rock Canyon DO - http://dx.doi.org/10.1130/0016-7606(1996)108<1492:LPLDLA>2.3.CO;2 ER - TY - JOUR T1 - Paleotransport of lanthanides and strontium recorded in calcite compositions from tuffs at Yucca Mountain, Nevada, USA AN - 52766170; 1997-018009 AB - Analyses are presented of Sr and REE in calcites, calcrete, palygorskite, opal, fluorite and zeolites from the silicic tuffs of Yucca Mt. Secondary calcite occurs in saturated (SZ) and unsaturated (UZ) hydrologic zones. In the upper UZ carbon and oxygen in the calcite structure have surface origins. Across the water table calcite is rare in a barren zone where mixing of surface and subsurface sources may occur. Mn calcites in the deep SZ zone indicate deep sources including Ca released as analcite or albite formed, and carbonates derived from Palaeozoic rocks. Variations in the calcite REE in the UZ and in the barren zone distinguish rhyolitic from quartz-latite sources. REE ratios and Sr contents of calcites record the chemical evolution of waters flowing through the UZ and upper SZ, which is discussed. Mn oxides in the tuffs affect groundwater chemistry in the UZ and barren zone by removing Ce from solution. Clays, zeolites and trace minerals can affect the compositions of groundwaters. JF - Geochimica et Cosmochimica Acta AU - Vaniman, David T AU - Chipera, Steve J Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 4417 EP - 4433 PB - Pergamon, Oxford VL - 60 IS - 22 SN - 0016-7037, 0016-7037 KW - United States KW - alkaline earth metals KW - volcanic rocks KW - Paleozoic KW - igneous rocks KW - unsaturated zone KW - Nye County Nevada KW - calcite KW - pyroclastics KW - saturated zone KW - metals KW - tuff KW - rare earths KW - Yucca Mountain KW - geochemistry KW - carbonates KW - strontium KW - Nevada KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52766170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Paleotransport+of+lanthanides+and+strontium+recorded+in+calcite+compositions+from+tuffs+at+Yucca+Mountain%2C+Nevada%2C+USA&rft.au=Vaniman%2C+David+T%3BChipera%2C+Steve+J&rft.aulast=Vaniman&rft.aufirst=David&rft.date=1996-11-01&rft.volume=60&rft.issue=22&rft.spage=4417&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2896%2900227-X L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. geol. sketch map, 4 tables, sect. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcite; carbonates; geochemistry; igneous rocks; metals; Nevada; Nye County Nevada; Paleozoic; pyroclastics; rare earths; saturated zone; strontium; tuff; United States; unsaturated zone; volcanic rocks; Yucca Mountain DO - http://dx.doi.org/10.1016/S0016-7037(96)00227-X ER - TY - JOUR T1 - Exposure history of lunar meteorites Queen Alexandra Range 93069 and 94269 AN - 52727448; 1997-031889 AB - Cosmic-ray produced (super 1) 4C, (super 3) 6Cl, (super 2) 6Al, and (super 1) 0Be in the recently discovered lunar meteorites Queen Alexandra Range 93069 (QUE 93069) and 94269 (QUE 94269) were measured by accelerator mass spectrometry. The abundance pattern of these four cosmogenic radionuclides and of noble gases indicates QUE 93069 and QUE 94269 were a paired fall and were exposed to cosmic rays near the surface of the Moon for at least several hundred million years before ejection. After the meteorite was launched from the Moon, where it had resided at a depth of 65-80 g/cm (super 2) , it experienced a short transition time, ca. 20-50 ka, before colliding with the Earth. The terrestrial age of the meteorite is 5-10 ka. Comparison of the cosmogenic nuclide concentrations in QUE 93069/94269 and MAC 88104/88105 clearly shows that these meteorites were not ejected by a common event from the Moon. (Auth.) JF - Meteoritics & Planetary Science AU - Nishiizumi, K AU - Caffee, M W AU - Jull, A J T AU - Reedy, R C Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 893 EP - 896 PB - Meteoritical Society, Fayetteville, AR VL - 31 IS - 6 SN - 1086-9379, 1086-9379 KW - lunar meteorites KW - stony meteorites KW - isotopes KW - halogens KW - mass spectra KW - exposure age KW - meteorites KW - Al-26 KW - radioactive isotopes KW - carbon KW - aluminum KW - spectra KW - QUE 93069 KW - chlorine KW - alkaline earth metals KW - Be-10 KW - Cl-36 KW - terrestrial age KW - ejecta KW - achondrites KW - Antarctica KW - metals KW - Queen Alexandra Range Meteorites KW - QUE 94269 KW - C-14 KW - beryllium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52727448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Exposure+history+of+lunar+meteorites+Queen+Alexandra+Range+93069+and+94269&rft.au=Nishiizumi%2C+K%3BCaffee%2C+M+W%3BJull%2C+A+J+T%3BReedy%2C+R+C&rft.aulast=Nishiizumi&rft.aufirst=K&rft.date=1996-11-01&rft.volume=31&rft.issue=6&rft.spage=893&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1997-01-01 N1 - Number of references - 27 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - achondrites; Al-26; alkaline earth metals; aluminum; Antarctica; Be-10; beryllium; C-14; carbon; chlorine; Cl-36; ejecta; exposure age; halogens; isotopes; lunar meteorites; mass spectra; metals; meteorites; QUE 93069; QUE 94269; Queen Alexandra Range Meteorites; radioactive isotopes; spectra; stony meteorites; terrestrial age ER - TY - JOUR T1 - Direct sampling and COSPEC results supporting FTIR and LIDAR measurements of volcanic emissions at White Island and Ruapehu volcanoes, New Zealand AN - 52696906; 1997-057664 JF - Eos, Transactions, American Geophysical Union AU - Christenson, B AU - Lindsay, J AU - Goff, F AU - Pettit, D AU - Werner, C AU - Love, S AU - Cottingame, W AU - McMurtry, G M AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 830 EP - 831 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - sulfur dioxide KW - concentration KW - Ruapehu KW - Australasia KW - fumaroles KW - prediction KW - North Island KW - measurement KW - gases KW - carbon dioxide KW - sampling KW - eruptions KW - brines KW - White Island KW - volcanoes KW - New Zealand KW - remote sensing KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52696906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Direct+sampling+and+COSPEC+results+supporting+FTIR+and+LIDAR+measurements+of+volcanic+emissions+at+White+Island+and+Ruapehu+volcanoes%2C+New+Zealand&rft.au=Christenson%2C+B%3BLindsay%2C+J%3BGoff%2C+F%3BPettit%2C+D%3BWerner%2C+C%3BLove%2C+S%3BCottingame%2C+W%3BMcMurtry%2C+G+M%3BAnonymous&rft.aulast=Christenson&rft.aufirst=B&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=830&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geological Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Australasia; brines; carbon dioxide; concentration; eruptions; fumaroles; gases; measurement; New Zealand; North Island; prediction; remote sensing; Ruapehu; sampling; sulfur dioxide; volcanoes; White Island ER - TY - JOUR T1 - A fluid dynamic model of mantle thermal heterogeneity AN - 52693362; 1997-061349 JF - Eos, Transactions, American Geophysical Union AU - Bunge, Hans-Peter AU - Richards, Mark A AU - Baumgardner, John R AU - Lithgow-Bertelloni, Carolina AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 722 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - numerical models KW - density KW - three-dimensional models KW - lithosphere KW - data processing KW - mantle KW - subduction KW - fluid dynamics KW - convection KW - thermal regime KW - Mesozoic KW - Cenozoic KW - plate tectonics KW - viscosity KW - heat flow KW - parallel processing KW - TERRA KW - heterogeneity KW - spherical models KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52693362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+fluid+dynamic+model+of+mantle+thermal+heterogeneity&rft.au=Bunge%2C+Hans-Peter%3BRichards%2C+Mark+A%3BBaumgardner%2C+John+R%3BLithgow-Bertelloni%2C+Carolina%3BAnonymous&rft.aulast=Bunge&rft.aufirst=Hans-Peter&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=722&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Cenozoic; convection; data processing; density; fluid dynamics; heat flow; heterogeneity; lithosphere; mantle; Mesozoic; numerical models; parallel processing; plate tectonics; spherical models; subduction; TERRA; thermal regime; three-dimensional models; viscosity ER - TY - JOUR T1 - Hydrothermal fluid flow along an oceanic fault; textural and microchemical data from ophicalcite veins, Northern Apennines, Italy AN - 52692042; 1997-061364 JF - Eos, Transactions, American Geophysical Union AU - Treves, Benedetta AU - Hickmott, Don AU - Vaggelli, Gloria AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 724 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - oceanic crust KW - serpentinization KW - Levanto Ophicalcite KW - Europe KW - metasomatism KW - Italy KW - Southern Europe KW - emission spectra KW - electron probe data KW - metamorphic rocks KW - spectra KW - trace elements KW - geochemistry KW - P-T conditions KW - minor elements KW - Upper Jurassic KW - Jurassic KW - textures KW - deformation KW - veins KW - metamorphism KW - X-ray spectra KW - Mesozoic KW - hydrothermal conditions KW - calcite KW - Northern Apennines KW - Apennines KW - brecciation KW - marbles KW - ophicalcite KW - PIXE data KW - carbonates KW - crust KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52692042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Hydrothermal+fluid+flow+along+an+oceanic+fault%3B+textural+and+microchemical+data+from+ophicalcite+veins%2C+Northern+Apennines%2C+Italy&rft.au=Treves%2C+Benedetta%3BHickmott%2C+Don%3BVaggelli%2C+Gloria%3BAnonymous&rft.aulast=Treves&rft.aufirst=Benedetta&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=724&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Apennines; brecciation; calcite; carbonates; crust; deformation; electron probe data; emission spectra; Europe; geochemistry; hydrothermal conditions; Italy; Jurassic; Levanto Ophicalcite; marbles; Mesozoic; metamorphic rocks; metamorphism; metasomatism; minor elements; Northern Apennines; oceanic crust; ophicalcite; P-T conditions; PIXE data; serpentinization; Southern Europe; spectra; textures; trace elements; Upper Jurassic; veins; X-ray spectra ER - TY - JOUR T1 - Integrated infrared/UV/lidar remote sensing of volcanic emissions at White Island and Mt. Ruapehu, New Zealand AN - 52692038; 1997-056781 JF - Eos, Transactions, American Geophysical Union AU - Love, S P AU - Pettit, D AU - Cottingame, W B AU - Goff, F AU - Werner, C AU - Christenson, B AU - Lindsay, J AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 802 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - Ruapehu KW - laser methods KW - geophysical surveys KW - geologic hazards KW - Australasia KW - geophysical methods KW - data processing KW - radar methods KW - volcanology KW - gases KW - volcanic risk KW - infrared methods KW - lidar methods KW - Fourier analysis KW - White Island KW - volcanoes KW - ultraviolet spectra KW - surveys KW - spectra KW - New Zealand KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52692038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Integrated+infrared%2FUV%2Flidar+remote+sensing+of+volcanic+emissions+at+White+Island+and+Mt.+Ruapehu%2C+New+Zealand&rft.au=Love%2C+S+P%3BPettit%2C+D%3BCottingame%2C+W+B%3BGoff%2C+F%3BWerner%2C+C%3BChristenson%2C+B%3BLindsay%2C+J%3BAnonymous&rft.aulast=Love&rft.aufirst=S&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=802&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - SuppNotes - For abstract with same title, but different text, see Cottingame, W. B., et al., Eos, Vol. 77, No. 46, Suppl., p. 801, 1996 N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Australasia; data processing; Fourier analysis; gases; geologic hazards; geophysical methods; geophysical surveys; infrared methods; laser methods; lidar methods; New Zealand; radar methods; remote sensing; Ruapehu; spectra; surveys; ultraviolet spectra; volcanic risk; volcanoes; volcanology; White Island ER - TY - JOUR T1 - Integrated lidar/UV/infrared remote sensing of volcanic emissions at White Island and Mt. Ruapehu, New Zealand AN - 52689509; 1997-056778 JF - Eos, Transactions, American Geophysical Union AU - Cottingame, W B AU - Pettit, D AU - Love, S P AU - Goff, F AU - Werner, C AU - Christenson, B AU - Lindsay, J AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 801 EP - 802 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - laser methods KW - geophysical surveys KW - geologic hazards KW - contaminant plumes KW - data processing KW - North Island KW - infrared methods KW - COSPEC KW - Fourier analysis KW - ultraviolet spectra KW - spectra KW - monitoring KW - Ruapehu KW - Australasia KW - geophysical methods KW - radar methods KW - atmosphere KW - volcanology KW - gases KW - volcanic risk KW - lidar methods KW - eruptions KW - White Island KW - volcanoes KW - surveys KW - aerosols KW - New Zealand KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52689509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Integrated+lidar%2FUV%2Finfrared+remote+sensing+of+volcanic+emissions+at+White+Island+and+Mt.+Ruapehu%2C+New+Zealand&rft.au=Cottingame%2C+W+B%3BPettit%2C+D%3BLove%2C+S+P%3BGoff%2C+F%3BWerner%2C+C%3BChristenson%2C+B%3BLindsay%2C+J%3BAnonymous&rft.aulast=Cottingame&rft.aufirst=W&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=801&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - SuppNotes - For abstract with same title, but different text, see Love, S. P., et al., Eos, Vol. 77, No. 46, Suppl., p. 802, 1996 N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; Australasia; contaminant plumes; COSPEC; data processing; eruptions; Fourier analysis; gases; geologic hazards; geophysical methods; geophysical surveys; infrared methods; laser methods; lidar methods; monitoring; New Zealand; North Island; radar methods; remote sensing; Ruapehu; spectra; surveys; ultraviolet spectra; volcanic risk; volcanoes; volcanology; White Island ER - TY - JOUR T1 - Geochemical evaluation of thermal/mineral waters during 1994-1995, Popocatepetl Volcano, Mexico AN - 52688514; 1997-056832 JF - Eos, Transactions, American Geophysical Union AU - Goff, Fraser AU - Werner, C AU - Siebe, Claus AU - Counce, D A AU - Janik, C J AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 810 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - oxygen KW - isotopes KW - fumaroles KW - Popocatepetl KW - stable isotopes KW - ground water KW - carbon dioxide KW - carbon KW - springs KW - discharge KW - geochemistry KW - pH KW - mineral waters KW - isotope ratios KW - C-13/C-12 KW - O-18/O-16 KW - hydrochemistry KW - volcanology KW - thermal waters KW - aquifers KW - Mexico KW - eruptions KW - volcanoes KW - hot springs KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52688514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Geochemical+evaluation+of+thermal%2Fmineral+waters+during+1994-1995%2C+Popocatepetl+Volcano%2C+Mexico&rft.au=Goff%2C+Fraser%3BWerner%2C+C%3BSiebe%2C+Claus%3BCounce%2C+D+A%3BJanik%2C+C+J%3BAnonymous&rft.aulast=Goff&rft.aufirst=Fraser&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=810&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; C-13/C-12; carbon; carbon dioxide; discharge; eruptions; fumaroles; geochemistry; ground water; hot springs; hydrochemistry; isotope ratios; isotopes; Mexico; mineral waters; O-18/O-16; oxygen; pH; Popocatepetl; springs; stable isotopes; thermal waters; volcanoes; volcanology ER - TY - JOUR T1 - Preferred orientation in alpha -beta olivines; implications for seismic anisotropy in the upper mantle AN - 52688499; 1997-061312 JF - Eos, Transactions, American Geophysical Union AU - Bennett, K AU - Von Dreele, Robert B AU - Bai, Q AU - Green, H W, II AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 716 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - upper mantle KW - pressure KW - mantle KW - phase transitions KW - olivine group KW - high pressure KW - temperature KW - preferred orientation KW - nesosilicates KW - rheology KW - creep KW - velocity structure KW - olivine KW - orthosilicates KW - polycrystalline materials KW - crystal dislocations KW - high temperature KW - anisotropy KW - P-T conditions KW - geophysics KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52688499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Preferred+orientation+in+alpha+-beta+olivines%3B+implications+for+seismic+anisotropy+in+the+upper+mantle&rft.au=Bennett%2C+K%3BVon+Dreele%2C+Robert+B%3BBai%2C+Q%3BGreen%2C+H+W%2C+II%3BAnonymous&rft.aulast=Bennett&rft.aufirst=K&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=716&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anisotropy; creep; crystal dislocations; geophysics; high pressure; high temperature; mantle; nesosilicates; olivine; olivine group; orthosilicates; P-T conditions; phase transitions; polycrystalline materials; preferred orientation; pressure; rheology; silicates; temperature; upper mantle; velocity structure ER - TY - JOUR T1 - Redox geochemistry of groundwater discharging to a stream in northern Wisconsin; application of reactive-transport modeling AN - 52644188; 1998-011456 JF - Eos, Transactions, American Geophysical Union AU - Keating, Elizabeth H AU - Bahr, Jean M AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 247 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - calcium KW - Allequash Creek KW - rivers and streams KW - data processing KW - hydrolysis KW - calibration KW - ground water KW - spatial variations KW - chemical reactions KW - phase equilibria KW - digital simulation KW - Wisconsin KW - discharge KW - geochemistry KW - pH KW - Eh KW - hydrology KW - alkaline earth metals KW - numerical models KW - Vilas County Wisconsin KW - northern Wisconsin KW - hydrochemistry KW - aquifers KW - HYDROGEOCHEM KW - metals KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52644188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Redox+geochemistry+of+groundwater+discharging+to+a+stream+in+northern+Wisconsin%3B+application+of+reactive-transport+modeling&rft.au=Keating%2C+Elizabeth+H%3BBahr%2C+Jean+M%3BAnonymous&rft.aulast=Keating&rft.aufirst=Elizabeth&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Allequash Creek; aquifers; calcium; calibration; chemical reactions; data processing; digital simulation; discharge; Eh; geochemistry; ground water; hydrochemistry; HYDROGEOCHEM; hydrology; hydrolysis; metals; northern Wisconsin; numerical models; pH; phase equilibria; rivers and streams; spatial variations; United States; Vilas County Wisconsin; Wisconsin ER - TY - JOUR T1 - The impact of constitutive models on stochastic analysis of steady-state unsaturated flow in heterogeneous media AN - 52643543; 1998-005981 JF - Eos, Transactions, American Geophysical Union AU - Zhang, Dongxiao AU - Wallstrom, T C AU - Winter, C L AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 277 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - models KW - hydrology KW - heterogeneous materials KW - stochastic processes KW - steady flow KW - unsaturated zone KW - water regimes KW - hydraulic conductivity KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52643543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+impact+of+constitutive+models+on+stochastic+analysis+of+steady-state+unsaturated+flow+in+heterogeneous+media&rft.au=Zhang%2C+Dongxiao%3BWallstrom%2C+T+C%3BWinter%2C+C+L%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Dongxiao&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - heterogeneous materials; hydraulic conductivity; hydrology; models; soils; steady flow; stochastic processes; unsaturated zone; water regimes ER - TY - JOUR T1 - Assessing the impact of volcanic hazards on the Pacific NW energy infrastructure AN - 52640356; 1998-018523 JF - Eos, Transactions, American Geophysical Union AU - Murphy, M T AU - Heiken, G H AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 770 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - volcanic risk KW - geologic hazards KW - ash falls KW - volcanism KW - volcanoes KW - Pacific Coast KW - Columbia Plateau KW - risk assessment KW - power plants KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52640356?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Assessing+the+impact+of+volcanic+hazards+on+the+Pacific+NW+energy+infrastructure&rft.au=Murphy%2C+M+T%3BHeiken%2C+G+H%3BAnonymous&rft.aulast=Murphy&rft.aufirst=M&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=770&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - ash falls; Columbia Plateau; geologic hazards; Pacific Coast; power plants; risk assessment; United States; volcanic risk; volcanism; volcanoes ER - TY - JOUR T1 - Macrodispersion in soils with heterogeneous water content AN - 52640009; 1998-005980 JF - Eos, Transactions, American Geophysical Union AU - Harter, T AU - Zhang, Dongxiao AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 277 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - hydrology KW - dispersivity KW - Richards equation KW - Monte Carlo analysis KW - statistical analysis KW - retention KW - water regimes KW - hydraulic conductivity KW - heterogeneity KW - covariance analysis KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52640009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Macrodispersion+in+soils+with+heterogeneous+water+content&rft.au=Harter%2C+T%3BZhang%2C+Dongxiao%3BAnonymous&rft.aulast=Harter&rft.aufirst=T&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - covariance analysis; dispersivity; heterogeneity; hydraulic conductivity; hydrology; Monte Carlo analysis; retention; Richards equation; soils; statistical analysis; water regimes ER - TY - JOUR T1 - Images of a crustal and lithospheric transition, southern Mexico, from single-station broadband data AN - 52629797; 1998-020127 JF - Eos, Transactions, American Geophysical Union AU - Jones, L E AU - Paulssen, H AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 465 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - upper mantle KW - body waves KW - guided waves KW - lithosphere KW - statistical analysis KW - mantle KW - inverse problem KW - elastic waves KW - southern Mexico KW - cluster analysis KW - surface waves KW - Mexico KW - Love waves KW - transition zones KW - velocity structure KW - broad-band spectra KW - seismic waves KW - S-waves KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52629797?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Images+of+a+crustal+and+lithospheric+transition%2C+southern+Mexico%2C+from+single-station+broadband+data&rft.au=Jones%2C+L+E%3BPaulssen%2C+H%3BAnonymous&rft.aulast=Jones&rft.aufirst=L&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=465&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - body waves; broad-band spectra; cluster analysis; crust; elastic waves; guided waves; inverse problem; lithosphere; Love waves; mantle; Mexico; S-waves; seismic waves; southern Mexico; statistical analysis; surface waves; transition zones; upper mantle; velocity structure ER - TY - JOUR T1 - Microbial survival and succession in a sequence of buried sediments during the last 1 million years AN - 52629216; 1998-011464 JF - Eos, Transactions, American Geophysical Union AU - Kieft, T L AU - Haldeman, D L AU - Amy, P S AU - Murphy, E M AU - Bjornstad, B N AU - McDonald, E V AU - White, D C AU - Stair, Julia AU - Griffiths, R P AU - Gsell, T C AU - Holben, W E AU - Boone, D R AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 248 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Washtucna Washington KW - fatty acids KW - biomass KW - eastern Washington KW - enzymes KW - cores KW - Cenozoic KW - geochemical profiles KW - Winona Washington KW - sampling KW - sediments KW - chronosequences KW - paleosols KW - middle Quaternary KW - geochemistry KW - Washington KW - Quaternary KW - clastic sediments KW - Adams County Washington KW - Palouse Formation KW - Whitman County Washington KW - organic compounds KW - organic acids KW - upper Quaternary KW - loess KW - Channeled Scabland KW - wind transport KW - proteins KW - pore water KW - microorganisms KW - 24:Quaternary geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52629216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Microbial+survival+and+succession+in+a+sequence+of+buried+sediments+during+the+last+1+million+years&rft.au=Kieft%2C+T+L%3BHaldeman%2C+D+L%3BAmy%2C+P+S%3BMurphy%2C+E+M%3BBjornstad%2C+B+N%3BMcDonald%2C+E+V%3BWhite%2C+D+C%3BStair%2C+Julia%3BGriffiths%2C+R+P%3BGsell%2C+T+C%3BHolben%2C+W+E%3BBoone%2C+D+R%3BAnonymous&rft.aulast=Kieft&rft.aufirst=T&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=248&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Adams County Washington; biomass; Cenozoic; Channeled Scabland; chronosequences; clastic sediments; cores; eastern Washington; enzymes; fatty acids; geochemical profiles; geochemistry; loess; microorganisms; middle Quaternary; organic acids; organic compounds; paleosols; Palouse Formation; pore water; proteins; Quaternary; sampling; sediments; United States; upper Quaternary; Washington; Washtucna Washington; Whitman County Washington; wind transport; Winona Washington ER - TY - JOUR T1 - Changes in electrical conductance during fracture of rock in CO-CO (sub 2) atmospheres AN - 52629097; 1998-010208 JF - Eos, Transactions, American Geophysical Union AU - Mathez, E A AU - Duba, A AU - Roberts, J J AU - Kinzler, R AU - Shankland, T J AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 503 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - precursors KW - electrical conductivity KW - Westerly Granite KW - strain KW - Pennsylvanian KW - microcracks KW - igneous rocks KW - granites KW - sandstone KW - fracturing KW - uniaxial tests KW - rock mechanics KW - carbon dioxide KW - laboratory studies KW - sedimentary rocks KW - plutonic rocks KW - carbon KW - carbonaceous composition KW - experimental studies KW - Paleozoic KW - Carboniferous KW - atmosphere KW - deformation KW - carbon monoxide KW - cracks KW - dilatancy KW - earthquakes KW - clastic rocks KW - crust KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52629097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Changes+in+electrical+conductance+during+fracture+of+rock+in+CO-CO+%28sub+2%29+atmospheres&rft.au=Mathez%2C+E+A%3BDuba%2C+A%3BRoberts%2C+J+J%3BKinzler%2C+R%3BShankland%2C+T+J%3BAnonymous&rft.aulast=Mathez&rft.aufirst=E&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=503&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; carbon; carbon dioxide; carbon monoxide; carbonaceous composition; Carboniferous; clastic rocks; cracks; crust; deformation; dilatancy; earthquakes; electrical conductivity; experimental studies; fracturing; granites; igneous rocks; laboratory studies; microcracks; Paleozoic; Pennsylvanian; plutonic rocks; precursors; rock mechanics; sandstone; sedimentary rocks; strain; uniaxial tests; Westerly Granite ER - TY - JOUR T1 - Exploring methods for inverting regional broad-band seismic waveforms for Earth structure AN - 52624236; 1998-020082 JF - Eos, Transactions, American Geophysical Union AU - Ammon, C J AU - Randall, G E AU - Velasco, A A AU - Walter, W R AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 459 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - seismograms KW - one-dimensional models KW - statistical analysis KW - spectral analysis KW - inverse problem KW - waveforms KW - least-squares analysis KW - wavelets KW - velocity structure KW - broad-band spectra KW - time domain analysis KW - filters KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52624236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Exploring+methods+for+inverting+regional+broad-band+seismic+waveforms+for+Earth+structure&rft.au=Ammon%2C+C+J%3BRandall%2C+G+E%3BVelasco%2C+A+A%3BWalter%2C+W+R%3BAnonymous&rft.aulast=Ammon&rft.aufirst=C&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=459&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - broad-band spectra; filters; inverse problem; least-squares analysis; one-dimensional models; seismograms; spectral analysis; statistical analysis; time domain analysis; velocity structure; waveforms; wavelets ER - TY - JOUR T1 - Porosity of the melting zone beneath Hawaii; inference from (super 238) U- (super 230) Th- (super 226) Ra and (super 235) U- (super 231) Pa disequilibria AN - 52615313; 1998-020306 JF - Eos, Transactions, American Geophysical Union AU - Sims, Kenneth W W AU - DePaolo, Donald J AU - Murrell, Michael T AU - Goldstein, Steve AU - Baldridge, W Scott AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 797 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Hawaii Island KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Haleakala KW - thermal ionization mass spectra KW - mass spectra KW - Th-230/Ra-226 KW - Mauna Loa KW - melts KW - uranium disequilibrium KW - radioactive isotopes KW - Hualalai KW - basalts KW - protactinium KW - spectra KW - Pa-231 KW - Kilauea KW - basaltic composition KW - geochemistry KW - mantle plumes KW - alkaline earth metals KW - U-235/Pa-231 KW - tholeiite KW - radium KW - Hawaii County Hawaii KW - isotope ratios KW - Hawaii KW - East Pacific Ocean Islands KW - U-238/Th-230 KW - porosity KW - Maui County Hawaii KW - Maui KW - Hawaiian Plume KW - plate tectonics KW - lava KW - metals KW - magmas KW - Oceania KW - thorium KW - uranium KW - Polynesia KW - actinides KW - basanite KW - U-235 KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52615313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Porosity+of+the+melting+zone+beneath+Hawaii%3B+inference+from+%28super+238%29+U-+%28super+230%29+Th-+%28super+226%29+Ra+and+%28super+235%29+U-+%28super+231%29+Pa+disequilibria&rft.au=Sims%2C+Kenneth+W+W%3BDePaolo%2C+Donald+J%3BMurrell%2C+Michael+T%3BGoldstein%2C+Steve%3BBaldridge%2C+W+Scott%3BAnonymous&rft.aulast=Sims&rft.aufirst=Kenneth+W&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=797&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; basaltic composition; basalts; basanite; East Pacific Ocean Islands; geochemistry; Haleakala; Hawaii; Hawaii County Hawaii; Hawaii Island; Hawaiian Plume; Hualalai; igneous rocks; isotope ratios; isotopes; Kilauea; lava; magmas; mantle plumes; mass spectra; Maui; Maui County Hawaii; Mauna Loa; melts; metals; Oceania; Pa-231; plate tectonics; Polynesia; porosity; protactinium; radioactive isotopes; radium; spectra; Th-230/Ra-226; thermal ionization mass spectra; tholeiite; thorium; U-235; U-235/Pa-231; U-238/Th-230; United States; uranium; uranium disequilibrium; volcanic rocks ER - TY - JOUR T1 - Mineral physics interpretations of the upper mantle AN - 52608102; 1998-030301 JF - Eos, Transactions, American Geophysical Union AU - Brown, J Michael AU - Slutsky, Leon J AU - Chai, Mu AU - Abramson, Evan AU - Zang, Joseph AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 483 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - upper mantle KW - experimental studies KW - elasticity KW - pressure KW - garnet group KW - mantle KW - phase transitions KW - olivine group KW - elastic constants KW - bulk modulus KW - San Carlos Olivine KW - high pressure KW - nesosilicates KW - pyroxene group KW - olivine KW - orthosilicates KW - shear modulus KW - minerals KW - chain silicates KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52608102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Mineral+physics+interpretations+of+the+upper+mantle&rft.au=Brown%2C+J+Michael%3BSlutsky%2C+Leon+J%3BChai%2C+Mu%3BAbramson%2C+Evan%3BZang%2C+Joseph%3BAnonymous&rft.aulast=Brown&rft.aufirst=J&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=483&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bulk modulus; chain silicates; elastic constants; elasticity; experimental studies; garnet group; high pressure; mantle; minerals; nesosilicates; olivine; olivine group; orthosilicates; phase transitions; pressure; pyroxene group; San Carlos Olivine; shear modulus; silicates; upper mantle ER - TY - JOUR T1 - Nonlinear slow dynamic behavior observed in resonance experiments on Berea Sandstone AN - 52596845; 1998-039033 JF - Eos, Transactions, American Geophysical Union AU - ten Cate, J A AU - Shankland, T J AU - van den Abeele, K E AU - Johnson, P A AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 745 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - experimental studies KW - Paleozoic KW - elastic properties KW - Berea Sandstone KW - sandstone KW - elastic constants KW - cores KW - rock mechanics KW - resonance KW - sedimentary rocks KW - dynamics KW - clastic rocks KW - Young's modulus KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52596845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Nonlinear+slow+dynamic+behavior+observed+in+resonance+experiments+on+Berea+Sandstone&rft.au=ten+Cate%2C+J+A%3BShankland%2C+T+J%3Bvan+den+Abeele%2C+K+E%3BJohnson%2C+P+A%3BAnonymous&rft.aulast=ten+Cate&rft.aufirst=J&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Berea Sandstone; clastic rocks; cores; dynamics; elastic constants; elastic properties; experimental studies; Paleozoic; resonance; rock mechanics; sandstone; sedimentary rocks; Young's modulus ER - TY - JOUR T1 - A finite element multigrid formulation for variable viscosity in 3-D spherical geometry AN - 52596537; 1998-039071 JF - Eos, Transactions, American Geophysical Union AU - Baumgardner, John R AU - Yang, Woo-Sun AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 750 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - three-dimensional models KW - lithosphere KW - statistical analysis KW - data processing KW - mantle KW - tensors KW - geometry KW - finite element analysis KW - viscosity KW - rheology KW - TERRA KW - spherical models KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52596537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+finite+element+multigrid+formulation+for+variable+viscosity+in+3-D+spherical+geometry&rft.au=Baumgardner%2C+John+R%3BYang%2C+Woo-Sun%3BAnonymous&rft.aulast=Baumgardner&rft.aufirst=John&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=750&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - data processing; finite element analysis; geometry; lithosphere; mantle; rheology; spherical models; statistical analysis; tensors; TERRA; three-dimensional models; viscosity ER - TY - JOUR T1 - Formation of a metastable olivine wedge in a descending slab AN - 52596074; 1998-039086 JF - Eos, Transactions, American Geophysical Union AU - Devaux, J P AU - Schubert, G AU - Anderson, C AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 753 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - pressure KW - stability KW - spinel KW - phase transitions KW - olivine group KW - high pressure KW - depth KW - temperature KW - nesosilicates KW - plate tectonics KW - deep-focus earthquakes KW - olivine KW - slabs KW - orthosilicates KW - velocity KW - oxides KW - kinetics KW - earthquakes KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52596074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Formation+of+a+metastable+olivine+wedge+in+a+descending+slab&rft.au=Devaux%2C+J+P%3BSchubert%2C+G%3BAnderson%2C+C%3BAnonymous&rft.aulast=Devaux&rft.aufirst=J&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=753&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - deep-focus earthquakes; depth; earthquakes; high pressure; kinetics; nesosilicates; olivine; olivine group; orthosilicates; oxides; phase transitions; plate tectonics; pressure; silicates; slabs; spinel; stability; temperature; velocity ER - TY - JOUR T1 - Microbial predator effects in bioremediation of soil hydrocarbon contaminants AN - 52545595; 1998-071395 JF - Eos, Transactions, American Geophysical Union AU - Travis, Bryan J AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 222 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - thallophytes KW - soils KW - Plantae KW - experimental studies KW - pollutants KW - soil treatment KW - pollution KW - correlation KW - bioremediation KW - remediation KW - models KW - laboratory studies KW - organic compounds KW - bacteria KW - hydrocarbons KW - heterogeneity KW - accuracy KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52545595?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Microbial+predator+effects+in+bioremediation+of+soil+hydrocarbon+contaminants&rft.au=Travis%2C+Bryan+J%3BAnonymous&rft.aulast=Travis&rft.aufirst=Bryan&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=222&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - accuracy; bacteria; bioremediation; correlation; experimental studies; heterogeneity; hydrocarbons; laboratory studies; microorganisms; models; organic compounds; Plantae; pollutants; pollution; remediation; soil treatment; soils; thallophytes ER - TY - JOUR T1 - Superadiabatic and subadiabatic geodynamo models AN - 52544587; 1998-071924 JF - Eos, Transactions, American Geophysical Union AU - Roberts, P H AU - Glatzmaier, G A AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 170 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - magnetohydrodynamics KW - demagnetization KW - numerical models KW - three-dimensional models KW - dynamos KW - mantle KW - paleomagnetism KW - convection KW - core-mantle boundary KW - adiabatic demagnetization KW - magnetic field KW - outer core KW - lower mantle KW - heat flow KW - core KW - dipole moment KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52544587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Superadiabatic+and+subadiabatic+geodynamo+models&rft.au=Roberts%2C+P+H%3BGlatzmaier%2C+G+A%3BAnonymous&rft.aulast=Roberts&rft.aufirst=P&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - adiabatic demagnetization; convection; core; core-mantle boundary; demagnetization; dipole moment; dynamos; heat flow; lower mantle; magnetic field; magnetohydrodynamics; mantle; numerical models; outer core; paleomagnetism; three-dimensional models ER - TY - JOUR T1 - Topography and fluvial drainage linked to Neogene-Quaternary extension; insights into the geodynamic evolution of the northeastern Iberian Peninsula AN - 52529305; 1999-000668 JF - Eos, Transactions, American Geophysical Union AU - Lewis, Claudia J AU - Verges, Jaume AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 645 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - Spain KW - mantle KW - Europe KW - Iberian Peninsula KW - Southern Europe KW - Cenozoic KW - topography KW - neotectonics KW - volcanism KW - normal faults KW - tectonics KW - active faults KW - faults KW - upper mantle KW - Quaternary KW - lithosphere KW - Ebro Basin KW - landform evolution KW - drainage patterns KW - structural controls KW - Iberian Mountains KW - half grabens KW - extension KW - Tertiary KW - geodynamics KW - Neogene KW - scarps KW - thermal effects KW - 18:Solid-earth geophysics KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52529305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Topography+and+fluvial+drainage+linked+to+Neogene-Quaternary+extension%3B+insights+into+the+geodynamic+evolution+of+the+northeastern+Iberian+Peninsula&rft.au=Lewis%2C+Claudia+J%3BVerges%2C+Jaume%3BAnonymous&rft.aulast=Lewis&rft.aufirst=Claudia&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=645&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - active faults; Cenozoic; drainage patterns; Ebro Basin; Europe; extension; faults; geodynamics; half grabens; Iberian Mountains; Iberian Peninsula; landform evolution; lithosphere; mantle; Neogene; neotectonics; normal faults; Quaternary; scarps; Southern Europe; Spain; structural controls; tectonics; Tertiary; thermal effects; topography; upper mantle; volcanism ER - TY - JOUR T1 - Cosmogenic (super 21) Ne in quartz as a paleoaltimeter AN - 52525177; 1999-000663 JF - Eos, Transactions, American Geophysical Union AU - Chase, C G AU - Quade, J AU - Libarkin, J C AU - Poths, J AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 644 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - silicates KW - Ne-21 KW - volcanic rocks KW - silica minerals KW - isotopes KW - igneous rocks KW - southwestern Colorado KW - cosmogenic elements KW - stable isotopes KW - Cenozoic KW - dates KW - Southern Rocky Mountains KW - noble gases KW - neon KW - sediments KW - absolute age KW - framework silicates KW - tuff KW - geochemistry KW - Ar/Ar KW - North America KW - clastic sediments KW - middle Tertiary KW - Carpenter Ridge Tuff KW - San Juan volcanic field KW - Paleogene KW - paleoaltimetry KW - paleogeography KW - pyroclastics KW - Tertiary KW - quartz KW - alluvium KW - Fish Canyon Tuff KW - Colorado KW - Rocky Mountains KW - Oligocene KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52525177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Cosmogenic+%28super+21%29+Ne+in+quartz+as+a+paleoaltimeter&rft.au=Chase%2C+C+G%3BQuade%2C+J%3BLibarkin%2C+J+C%3BPoths%2C+J%3BAnonymous&rft.aulast=Chase&rft.aufirst=C&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=644&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; alluvium; Ar/Ar; Carpenter Ridge Tuff; Cenozoic; clastic sediments; Colorado; cosmogenic elements; dates; Fish Canyon Tuff; framework silicates; geochemistry; igneous rocks; isotopes; middle Tertiary; Ne-21; neon; noble gases; North America; Oligocene; paleoaltimetry; Paleogene; paleogeography; pyroclastics; quartz; Rocky Mountains; San Juan volcanic field; sediments; silica minerals; silicates; Southern Rocky Mountains; southwestern Colorado; stable isotopes; Tertiary; tuff; United States; volcanic rocks ER - TY - JOUR T1 - A controlled mine collapse and induced aftershocks at White Pine, Michigan AN - 52495275; 1999-017949 JF - Eos, Transactions, American Geophysical Union AU - Phillips, Scott AU - Pearson, Craig AU - Edwards, C L AU - Stump, Brian AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - mines KW - White Pine Mine KW - collapse structures KW - Michigan Upper Peninsula KW - elastic waves KW - waveforms KW - seismic sources KW - Ontonagon County Michigan KW - aftershocks KW - blasting KW - ground motion KW - seismic waves KW - Michigan KW - White Pine Michigan KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52495275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+controlled+mine+collapse+and+induced+aftershocks+at+White+Pine%2C+Michigan&rft.au=Phillips%2C+Scott%3BPearson%2C+Craig%3BEdwards%2C+C+L%3BStump%2C+Brian%3BAnonymous&rft.aulast=Phillips&rft.aufirst=Scott&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=F11&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aftershocks; blasting; collapse structures; elastic waves; ground motion; Michigan; Michigan Upper Peninsula; mines; Ontonagon County Michigan; seismic sources; seismic waves; United States; waveforms; White Pine Michigan; White Pine Mine ER - TY - JOUR T1 - Quantification and characterization of regional seismic signals from cast blasting in mines; a linear elastic model AN - 52495130; 1999-017965 JF - Eos, Transactions, American Geophysical Union AU - Anandakrishnan, Sridhar AU - Taylor, Steven R AU - Stump, Brian W AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - F13 EP - F14 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - seismograms KW - mines KW - explosions KW - coal mines KW - characterization KW - elastic waves KW - correlation KW - waveforms KW - seismic sources KW - signals KW - models KW - detection KW - quantitative analysis KW - blasting KW - identification KW - seismic waves KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52495130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Quantification+and+characterization+of+regional+seismic+signals+from+cast+blasting+in+mines%3B+a+linear+elastic+model&rft.au=Anandakrishnan%2C+Sridhar%3BTaylor%2C+Steven+R%3BStump%2C+Brian+W%3BAnonymous&rft.aulast=Anandakrishnan&rft.aufirst=Sridhar&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=F13&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - blasting; characterization; coal mines; correlation; detection; earthquakes; elastic waves; explosions; identification; mines; models; quantitative analysis; seismic sources; seismic waves; seismograms; signals; waveforms ER - TY - JOUR T1 - Source moment tensor estimation of surface mining blasts AN - 52495071; 1999-017951 JF - Eos, Transactions, American Geophysical Union AU - Yang, X AU - Stump, B W AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - mining KW - body waves KW - surface mining KW - acceleration KW - elastic waves KW - seismic sources KW - attenuation KW - moment tensors KW - blasting KW - velocity structure KW - ground motion KW - SH-waves KW - seismic waves KW - S-waves KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52495071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Source+moment+tensor+estimation+of+surface+mining+blasts&rft.au=Yang%2C+X%3BStump%2C+B+W%3BAnonymous&rft.aulast=Yang&rft.aufirst=X&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=F12&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acceleration; attenuation; blasting; body waves; crust; elastic waves; ground motion; mining; moment tensors; S-waves; seismic sources; seismic waves; SH-waves; surface mining; velocity structure ER - TY - JOUR T1 - Numerical simulations of geomagnetic field reversals AN - 52494795; 1999-018083 JF - Eos, Transactions, American Geophysical Union AU - Glatzmaier, G A AU - Roberts, P H AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - heat flux KW - numerical models KW - three-dimensional models KW - free oscillations KW - pole positions KW - dynamos KW - mantle KW - paleomagnetism KW - simulation KW - core-mantle boundary KW - outer core KW - lower mantle KW - reversals KW - core KW - heterogeneity KW - dipole moment KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52494795?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Numerical+simulations+of+geomagnetic+field+reversals&rft.au=Glatzmaier%2C+G+A%3BRoberts%2C+P+H%3BAnonymous&rft.aulast=Glatzmaier&rft.aufirst=G&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=F39&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - core; core-mantle boundary; dipole moment; dynamos; free oscillations; heat flux; heterogeneity; lower mantle; mantle; numerical models; outer core; paleomagnetism; pole positions; reversals; simulation; three-dimensional models ER - TY - JOUR T1 - Regional earthquake and explosion location in western China AN - 52494691; 1999-017943 JF - Eos, Transactions, American Geophysical Union AU - Cogbill, A AU - Steck, L K AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - monitoring KW - Far East KW - explosions KW - elastic waves KW - waveforms KW - seismic sources KW - traveltime KW - seismic waves KW - western China KW - seismic networks KW - nuclear explosions KW - Asia KW - arrival time KW - earthquakes KW - China KW - arrays KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52494691?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Regional+earthquake+and+explosion+location+in+western+China&rft.au=Cogbill%2C+A%3BSteck%2C+L+K%3BAnonymous&rft.aulast=Cogbill&rft.aufirst=A&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=F11&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - arrays; arrival time; Asia; China; earthquakes; elastic waves; explosions; Far East; monitoring; nuclear explosions; seismic networks; seismic sources; seismic waves; traveltime; waveforms; western China ER - TY - JOUR T1 - Infrasonic monitoring in the CTBT IMS AN - 52494413; 1999-017932 JF - Eos, Transactions, American Geophysical Union AU - Whitaker, R W AU - Revelle, D O AU - Armstrong, W T AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - monitoring KW - explosions KW - infrasonic methods KW - geophysical methods KW - atmosphere KW - seismic sources KW - measurement KW - acoustical methods KW - military geology KW - detection KW - identification KW - nuclear explosions KW - arrays KW - acoustical waves KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52494413?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Infrasonic+monitoring+in+the+CTBT+IMS&rft.au=Whitaker%2C+R+W%3BRevelle%2C+D+O%3BArmstrong%2C+W+T%3BAnonymous&rft.aulast=Whitaker&rft.aufirst=R&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=F8&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical methods; acoustical waves; arrays; atmosphere; Comprehensive Test Ban Treaty; detection; explosions; geophysical methods; identification; infrasonic methods; measurement; military geology; monitoring; nuclear explosions; seismic sources ER - TY - JOUR T1 - Assessment of percolation rate, fracture flow, and radionuclide migration for the potential high-level repository at Yucca Mountain AN - 52493906; 1999-017991 JF - Eos, Transactions, American Geophysical Union AU - Wolfsberg, Andrew AU - Robinson, Bruce AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - hydrology KW - high-level waste KW - numerical models KW - site exploration KW - pollutants KW - waste disposal sites KW - pollution KW - preferential flow KW - Nye County Nevada KW - rock mechanics KW - radioactive waste KW - ground water KW - fractures KW - risk assessment KW - percolation KW - waste disposal KW - Yucca Mountain KW - pore water KW - Nevada KW - disposal barriers KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52493906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Assessment+of+percolation+rate%2C+fracture+flow%2C+and+radionuclide+migration+for+the+potential+high-level+repository+at+Yucca+Mountain&rft.au=Wolfsberg%2C+Andrew%3BRobinson%2C+Bruce%3BAnonymous&rft.aulast=Wolfsberg&rft.aufirst=Andrew&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=F20&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - disposal barriers; fractures; ground water; high-level waste; hydrology; Nevada; numerical models; Nye County Nevada; percolation; pollutants; pollution; pore water; preferential flow; radioactive waste; risk assessment; rock mechanics; site exploration; United States; waste disposal; waste disposal sites; Yucca Mountain ER - TY - JOUR T1 - The rotation and growth of the Earth's inner core AN - 52493677; 1999-018098 JF - Eos, Transactions, American Geophysical Union AU - Glatzmaier, G A AU - Roberts, P H AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - magnetohydrodynamics KW - numerical models KW - three-dimensional models KW - dynamos KW - convection KW - simulation KW - magnetic field KW - boundary conditions KW - outer core KW - genesis KW - rotation KW - heat flow KW - core KW - inner core KW - dynamic properties KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52493677?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+rotation+and+growth+of+the+Earth%27s+inner+core&rft.au=Glatzmaier%2C+G+A%3BRoberts%2C+P+H%3BAnonymous&rft.aulast=Glatzmaier&rft.aufirst=G&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=F42&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - boundary conditions; convection; core; dynamic properties; dynamos; genesis; heat flow; inner core; magnetic field; magnetohydrodynamics; numerical models; outer core; rotation; simulation; three-dimensional models ER - TY - JOUR T1 - The effects of barometric pumping on contaminant transport AN - 51057040; 1997-016671 AB - Variation in the ambient atmospheric pressure results in subsurface motion of air in porous and fractured earth materials. This is known as barometric pumping. We analyze this phenomenon for unfractured media and demonstrate that if hydrodynamic dispersivity is included, barometric pumping can significantly decrease the retention time of volatile subsurface contaminants. Formulae are derived which give analytically the dependence of the effect on the amplitude and frequency of the barometric pump as well as on the material properties. In addition, numerical modeling results using a method which carefully avoids spurious numerical dispersion are presented. Field data will appear to follow a standard diffusive transport model; but in the systems in which barometric pumping is significant, the value for D will need to be greater than that derived from isobaric tests. In addition to enhancing the diffusion, pumping also sweeps out pore gases near the surface and thus, reduces the distance a subsurface contaminant must diffuse before it mixes with the atmosphere. These barometric pumping mechanisms will be enhanced by the presence of fractures, which permit pressure variations to propagate deep into the ground. Because barometric pumping affects the rate of contaminant transport from the subsurface, this process may play an important role in the environmental remediation of volatile organic chemicals in the vadose zone. JF - Journal of Contaminant Hydrology AU - Auer, L H AU - Rosenberg, N D AU - Birdsell, K H AU - Whitney, E M Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 145 EP - 166 PB - Elsevier, Amsterdam VL - 24 IS - 2 SN - 0169-7722, 0169-7722 KW - fractured materials KW - numerical models KW - chemical dispersion KW - pollutants KW - pumping KW - unsaturated zone KW - pollution KW - porous materials KW - mathematical models KW - migration of elements KW - equations KW - remediation KW - volatiles KW - organic compounds KW - transport KW - volatile organic compounds KW - permeability KW - diffusivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51057040?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=The+effects+of+barometric+pumping+on+contaminant+transport&rft.au=Auer%2C+L+H%3BRosenberg%2C+N+D%3BBirdsell%2C+K+H%3BWhitney%2C+E+M&rft.aulast=Auer&rft.aufirst=L&rft.date=1996-11-01&rft.volume=24&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 9 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical dispersion; diffusivity; equations; fractured materials; mathematical models; migration of elements; numerical models; organic compounds; permeability; pollutants; pollution; porous materials; pumping; remediation; transport; unsaturated zone; volatile organic compounds; volatiles ER - TY - JOUR T1 - Solar wind magnetic field bending of Jovian dust trajectories AN - 50330029; 1997-012327 JF - Science AU - Zook, H A AU - Gruen, E AU - Baguhl, M AU - Hamilton, D P AU - Linkert, G AU - Liou, J C AU - Forsyth, R AU - Phillips, J L Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 1501 EP - 1503 PB - American Association for the Advancement of Science, Washington, DC VL - 274 IS - 5292 SN - 0036-8075, 0036-8075 KW - mass KW - planets KW - cosmic dust KW - solar wind KW - Jupiter KW - velocity KW - outer planets KW - Ulysses Program KW - magnetic field KW - giant planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50330029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Solar+wind+magnetic+field+bending+of+Jovian+dust+trajectories&rft.au=Zook%2C+H+A%3BGruen%2C+E%3BBaguhl%2C+M%3BHamilton%2C+D+P%3BLinkert%2C+G%3BLiou%2C+J+C%3BForsyth%2C+R%3BPhillips%2C+J+L&rft.aulast=Zook&rft.aufirst=H&rft.date=1996-11-01&rft.volume=274&rft.issue=5292&rft.spage=1501&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 16 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - cosmic dust; giant planets; Jupiter; magnetic field; mass; outer planets; planets; solar wind; Ulysses Program; velocity ER - TY - JOUR T1 - Water Resources Research AN - 50324710; 1997-006785 JF - Water Resources Research AU - Johns, Russell T AU - Rivera, Alfonso AU - Oldenburg, Curtis M AU - Pruess, Karsten AU - Travis, Bryan J Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 3405 EP - 3412 PB - American Geophysical Union, Washington, DC VL - 32 IS - 11 SN - 0043-1397, 0043-1397 KW - TOUGH2 KW - mines KW - numerical models KW - salt domes KW - chemical dispersion KW - pollution KW - coupling KW - Europe KW - Lower Saxony Germany KW - radioactive waste KW - ground water KW - Gorleben KW - computer programs KW - MOR3D KW - safety KW - transport KW - Central Europe KW - brines KW - waste disposal KW - Germany KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50324710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Water+Resources+Research&rft.au=Johns%2C+Russell+T%3BRivera%2C+Alfonso%3BOldenburg%2C+Curtis+M%3BPruess%2C+Karsten%3BTravis%2C+Bryan+J&rft.aulast=Johns&rft.aufirst=Russell&rft.date=1996-11-01&rft.volume=32&rft.issue=11&rft.spage=3405&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 13 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Oldenburg, C. M., Pruess, K., Water Resour. Res., Vol. 32, No. 2, p. 289-302, 1995 N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - brines; Central Europe; chemical dispersion; computer programs; coupling; Europe; Germany; Gorleben; ground water; Lower Saxony Germany; mines; MOR3D; numerical models; pollution; radioactive waste; safety; salt domes; TOUGH2; transport; waste disposal ER - TY - JOUR T1 - (super 231) Pa and (super 230) Th dating of deep sea corals AN - 50318408; 1998-011556 JF - Eos, Transactions, American Geophysical Union AU - Goldstein, S J AU - Murrell, M T AU - Lea, D AU - Chakraborty, S AU - Kashgarian, M AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 291 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - growth rates KW - Th-230 KW - isotopes KW - thermal ionization mass spectra KW - paleo-oceanography KW - mass spectra KW - techniques KW - deep-sea environment KW - Holocene KW - Th/U KW - uranium disequilibrium KW - Cenozoic KW - radioactive isotopes KW - dates KW - carbon KW - protactinium KW - Anthozoa KW - absolute age KW - Invertebrata KW - spectra KW - Pa-231 KW - experimental studies KW - Quaternary KW - Antarctic Ocean KW - Coelenterata KW - sample preparation KW - metals KW - marine environment KW - thorium KW - Cnidaria KW - C-14 KW - upper Holocene KW - actinides KW - 24:Quaternary geology KW - 03:Geochronology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50318408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=%28super+231%29+Pa+and+%28super+230%29+Th+dating+of+deep+sea+corals&rft.au=Goldstein%2C+S+J%3BMurrell%2C+M+T%3BLea%2C+D%3BChakraborty%2C+S%3BKashgarian%2C+M%3BAnonymous&rft.aulast=Goldstein&rft.aufirst=S&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; actinides; Antarctic Ocean; Anthozoa; C-14; carbon; Cenozoic; Cnidaria; Coelenterata; dates; deep-sea environment; experimental studies; growth rates; Holocene; Invertebrata; isotopes; marine environment; mass spectra; metals; Pa-231; paleo-oceanography; protactinium; Quaternary; radioactive isotopes; sample preparation; spectra; techniques; Th-230; Th/U; thermal ionization mass spectra; thorium; upper Holocene; uranium disequilibrium ER - TY - JOUR T1 - Lithospheric structure in continental rifts from Nd-Sr isotope geochemistry; the Rio Grande Rift AN - 50309782; 1998-020273 JF - Eos, Transactions, American Geophysical Union AU - Minchak, S L AU - Asmerom, Y AU - Kudo, A M AU - Baldridge, W S AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 792 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Sandoval County New Mexico KW - upper Pliocene KW - continental crust KW - New Mexico KW - stable isotopes KW - Rio Grande Rift KW - Cenozoic KW - olivine tholeiite KW - volcanism KW - basalts KW - Jemez Mountains KW - rare earths KW - faults KW - Lobato Basalt KW - North America KW - alkaline earth metals KW - Quaternary KW - rift zones KW - lithosphere KW - isotope ratios KW - Nd-144/Nd-143 KW - extension KW - Sr-87/Sr-86 KW - Tertiary KW - Neogene KW - metals KW - magmas KW - shear KW - Pliocene KW - neodymium KW - strontium KW - crust KW - 16:Structural geology KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50309782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Lithospheric+structure+in+continental+rifts+from+Nd-Sr+isotope+geochemistry%3B+the+Rio+Grande+Rift&rft.au=Minchak%2C+S+L%3BAsmerom%2C+Y%3BKudo%2C+A+M%3BBaldridge%2C+W+S%3BAnonymous&rft.aulast=Minchak&rft.aufirst=S&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=792&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; basalts; Cenozoic; continental crust; crust; extension; faults; igneous rocks; isotope ratios; isotopes; Jemez Mountains; lithosphere; Lobato Basalt; magmas; metals; Nd-144/Nd-143; neodymium; Neogene; New Mexico; North America; olivine tholeiite; Pliocene; Quaternary; rare earths; rift zones; Rio Grande Rift; Sandoval County New Mexico; shear; Sr-87/Sr-86; stable isotopes; strontium; Tertiary; United States; upper Pliocene; volcanic rocks; volcanism ER - TY - JOUR T1 - Crust and upper mantle velocity structure at Valles Caldera, New Mexico from 3-D teleseismic tomography AN - 50309755; 1998-020131 JF - Eos, Transactions, American Geophysical Union AU - Steck, L AU - Lutter, W AU - Baldridge, S AU - Thurber, C AU - Fehler, M AU - Roberts, P AU - Sessions, R AU - Stafford, D AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 466 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - tomography KW - P-waves KW - collapse structures KW - data processing KW - Sandoval County New Mexico KW - mantle KW - elastic waves KW - continental crust KW - New Mexico KW - low-velocity zones KW - volcanic features KW - Valles Caldera KW - Jemez Mountains KW - arrival time KW - upper mantle KW - body waves KW - three-dimensional models KW - iterative methods KW - lithosphere KW - statistical analysis KW - inverse problem KW - teleseismic signals KW - least-squares analysis KW - calderas KW - velocity structure KW - seismic waves KW - earthquakes KW - north-central New Mexico KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50309755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Crust+and+upper+mantle+velocity+structure+at+Valles+Caldera%2C+New+Mexico+from+3-D+teleseismic+tomography&rft.au=Steck%2C+L%3BLutter%2C+W%3BBaldridge%2C+S%3BThurber%2C+C%3BFehler%2C+M%3BRoberts%2C+P%3BSessions%2C+R%3BStafford%2C+D%3BAnonymous&rft.aulast=Steck&rft.aufirst=L&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=466&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - arrival time; body waves; calderas; collapse structures; continental crust; crust; data processing; earthquakes; elastic waves; inverse problem; iterative methods; Jemez Mountains; least-squares analysis; lithosphere; low-velocity zones; mantle; New Mexico; north-central New Mexico; P-waves; Sandoval County New Mexico; seismic waves; statistical analysis; teleseismic signals; three-dimensional models; tomography; United States; upper mantle; Valles Caldera; velocity structure; volcanic features ER - TY - JOUR T1 - Evaluating hysteresis in earth materials under dynamic resonance AN - 50153119; 1997-009019 AB - A lumped parameter model is derived for studying hysteretic effects in resonant bar experiments on rock. The model uses equations of state obtained by approximating closed hysteresis loops in the stress-strain plane by parallelograms. The associated approximate nonlinear state relations have a sound speed (modulus) that takes two values. Assuming hysteresis and discrete memory to be the primary nonlinear mechanisms, periodic solutions corresponding to these equations of state are obtained analytically for single-frequency continuous wave drivers, and their frequency spectral densities are analyzed. In this simple approximation, if hysteretic contributions to the signal speed are a correction to the linear elastic signal speed (i.e., the parallelogram is narrow), the model predicts that the spectral density at even multiples of the source frequency is zero, and an approximate "pairing" of amplitudes is predicted for odd harmonic multiples. Comparison of the model spectrum with experimental data shows the model to be qualitatively correct. We conclude that hysteresis is an important mechanism in rocks. We consider the model to be a prototype. Copyright 1996 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Kadish, Abraham AU - Johnson, Paul A AU - Zinszner, Bernard Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 25 EP - 25,147 PB - American Geophysical Union, Washington, DC VL - 101 IS - B11 SN - 0148-0227, 0148-0227 KW - limestone KW - Fontainebleau Sandstone KW - Lavoux Limestone KW - experimental studies KW - hysteresis KW - resonant bar experiments KW - elastic properties KW - sandstone KW - elastic waves KW - Paleogene KW - lumped parameter models KW - Cenozoic KW - laboratory studies KW - Tertiary KW - resonance KW - physical properties KW - sedimentary rocks KW - Meule Sandstone KW - propagation KW - wave dispersion KW - carbonate rocks KW - clastic rocks KW - Oligocene KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50153119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Evaluating+hysteresis+in+earth+materials+under+dynamic+resonance&rft.au=Kadish%2C+Abraham%3BJohnson%2C+Paul+A%3BZinszner%2C+Bernard&rft.aulast=Kadish&rft.aufirst=Abraham&rft.date=1996-11-01&rft.volume=101&rft.issue=B11&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F96JB02480 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbonate rocks; Cenozoic; clastic rocks; elastic properties; elastic waves; experimental studies; Fontainebleau Sandstone; hysteresis; laboratory studies; Lavoux Limestone; limestone; lumped parameter models; Meule Sandstone; Oligocene; Paleogene; physical properties; propagation; resonance; resonant bar experiments; sandstone; sedimentary rocks; Tertiary; wave dispersion DO - http://dx.doi.org/10.1029/96JB02480 ER - TY - JOUR T1 - Alterations in the progression of cells through the cell cycle after exposure to alpha particles or gamma rays. AN - 78520966; 8927713 AB - A G1-phase delay after exposure to alpha particles has not been report ed previously, perhaps because immortalized cell lines or cell lines from tumor cells were used in past studies. Therefore, we compared the effects of alpha particles (0.19 or 0.57 Gy) and approximately equitoxic doses of gamma rays (2 or 4 Gy) on progression of cells through the cell cycle in normal human skin fibroblasts. Cell cycle analyses were performed using flow cytometry by measuring incorporation of bromodeoxyuridine (BrdUrd) in each phase of the cell cycle up to 44 h after irradiation. We observed an alpha-particle-induced G1-phase delay in human skin fibroblasts even at the lowest dose, 0.19 Gy. At equitoxic doses, more pronounced and persistent G1-phase delays and arrests were observed in gamma-irradiated cultures in that increased fractions of the G1-phase cells remained BrdUrd- over the course of the study after gamma-ray exposure compared to cells exposed to alpha particles. In addition, G1-phase cells that became BrdUrd+ after gamma irradiation re-arrested in G1 phase, whereas BrdUrd+ G1-phase cells in alpha-particle-irradiated cultures continued cycling. In contrast, comparable percentages of cells were delayed in G2 phase after either alpha-particle or gamma irradiation. Both gamma and alpha-particle irradiation caused increases in cellular p53 and p2lCip1 shortly after the exposures, which suggests that the G1-phase delay that occurs in response to alpha-particle irradiation is dependent on p53 like the initial G1-phase delay induced by gamma rays. JF - Radiation research AU - Gadbois, D M AU - Crissman, H A AU - Nastasi, A AU - Habbersett, R AU - Wang, S K AU - Chen, D AU - Lehnert, B E AD - Cell and Molecular Biology, Life Sciences Division, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 414 EP - 424 VL - 146 IS - 4 SN - 0033-7587, 0033-7587 KW - CDKN1A protein, human KW - 0 KW - Cyclin-Dependent Kinase Inhibitor p21 KW - Cyclins KW - Tumor Suppressor Protein p53 KW - Bromodeoxyuridine KW - G34N38R2N1 KW - Index Medicus KW - Space life sciences KW - Non-programmatic KW - Gamma Rays KW - DNA Damage KW - Humans KW - Radiation Tolerance KW - Fibroblasts -- cytology KW - Dose-Response Relationship, Radiation KW - G1 Phase -- radiation effects KW - Tumor Suppressor Protein p53 -- metabolism KW - Fibroblasts -- metabolism KW - Radiobiology KW - DNA Replication -- radiation effects KW - Alpha Particles KW - Cyclins -- metabolism KW - Fibroblasts -- radiation effects KW - Flow Cytometry KW - Cell Line KW - Bromodeoxyuridine -- metabolism KW - Cell Cycle -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78520966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Alterations+in+the+progression+of+cells+through+the+cell+cycle+after+exposure+to+alpha+particles+or+gamma+rays.&rft.au=Gadbois%2C+D+M%3BCrissman%2C+H+A%3BNastasi%2C+A%3BHabbersett%2C+R%3BWang%2C+S+K%3BChen%2C+D%3BLehnert%2C+B+E&rft.aulast=Gadbois&rft.aufirst=D&rft.date=1996-10-01&rft.volume=146&rft.issue=4&rft.spage=414&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-11-20 N1 - Date created - 1996-11-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Uranium (VI) adsorption on goethite and soil in carbonate solutions AN - 52781474; 1996-082227 JF - Soil Science Society of America Journal AU - Duff, M C AU - Amrhein, C Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 1393 EP - 1400 PB - Soil Science Society of America, Madison, WI VL - 60 IS - 5 SN - 0361-5995, 0361-5995 KW - United States KW - calcium KW - Tulare Lake KW - magnesium KW - iron oxides KW - goethite KW - complexing KW - irrigation KW - California KW - oxides KW - spectra KW - geochemistry KW - synthetic materials KW - pH KW - soils KW - alkaline earth metals KW - toxic materials KW - carbonate ion KW - San Joaquin Valley KW - drainage KW - uranyl ion KW - solutes KW - pollution KW - phosphorus KW - adsorption KW - X-ray spectra KW - models KW - evaporation KW - FITEQL KW - metals KW - EXAFS data KW - uranium KW - carbonates KW - actinides KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52781474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Uranium+%28VI%29+adsorption+on+goethite+and+soil+in+carbonate+solutions&rft.au=Duff%2C+M+C%3BAmrhein%2C+C&rft.aulast=Duff&rft.aufirst=M&rft.date=1996-10-01&rft.volume=60&rft.issue=5&rft.spage=1393&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ L2 - https://www.soils.org/publications/sssaj LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 29 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-03-14 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - actinides; adsorption; alkaline earth metals; calcium; California; carbonate ion; carbonates; complexing; drainage; evaporation; EXAFS data; FITEQL; geochemistry; goethite; iron oxides; irrigation; magnesium; metals; models; oxides; pH; phosphorus; pollution; San Joaquin Valley; soils; solutes; spectra; synthetic materials; toxic materials; Tulare Lake; United States; uranium; uranyl ion; X-ray spectra ER - TY - JOUR T1 - Understanding the genesis of nonmarine calcite deposits through quadrupole mass spectrometric analysis of fluid inclusion gases AN - 52768243; 1997-007645 AB - Quadrupole mass spectroscopy was used to analyze fluid inclusion volatiles in different types of nonmarine calcites including travertines, phreatic calcretes, hydrothermal vein calcites, and pedogenic calcites. The objectives of the study were to determine if there were any diagnostic or characteristic differences between the inclusion volatiles from the different calcites, and to see if the quadrupole results could be used to understand the processes and environmental conditions that controlled calcite precipitation. The calcites formed under saturated conditions have water-dominated inclusions with well-constrained N (sub 2) /Ar ratios and either CO (sub 2) or N (sub 2) as the dominant inclusion gas. Some calcretes and travertines were exceptions to the above characteristics, but it is likely that these were subjected to secondary precipitation in an environment different from the primary precipitation phase. Results for the pedogenic calcites are quite different from calcites formed in water-saturated systems. Pedogenic calcites have gas-dominated (water-poor) inclusions, unexpectedly large CH (sub 4) contents, low O (sub 2) contents, and highly variable N (sub 2) /Ar ratios. The dominance of CH (sub 4) and low O (sub 2) contents in the pedogenic calcites suggest that anaerobic conditions occurred during at least part of the precipitation process. Scanning electron microscope (SEM) examination of the pedogenic calcites shows fungal remains, bacteria-like forms, and gels from fungi or plant roots. The quadrupole and SEM results suggest pedogenic calcite precipitation occurred as a result of aerobic and, ultimately, anaerobic microbial decay processes. JF - Chemical Geology AU - Newman, B D AU - Norman, D I AU - Gundimeda, M AU - Levy, S S A2 - Stillings, Lisa L. Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 205 EP - 213 PB - Elsevier, Amsterdam VL - 132 IS - 1-4 SN - 0009-2541, 0009-2541 KW - United States KW - terrestrial environment KW - unsaturated zone KW - mass spectra KW - New Mexico KW - saturated zone KW - sedimentary rocks KW - inclusions KW - spectra KW - calcrete KW - geochemistry KW - water KW - soils KW - veins KW - gases KW - calcite KW - volatiles KW - precipitation KW - travertine KW - anaerobic environment KW - fluid inclusions KW - crystal chemistry KW - carbonate rocks KW - carbonates KW - SEM data KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52768243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Understanding+the+genesis+of+nonmarine+calcite+deposits+through+quadrupole+mass+spectrometric+analysis+of+fluid+inclusion+gases&rft.au=Newman%2C+B+D%3BNorman%2C+D+I%3BGundimeda%2C+M%3BLevy%2C+S+S&rft.aulast=Newman&rft.aufirst=B&rft.date=1996-10-01&rft.volume=132&rft.issue=1-4&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2FS0009-2541%2896%2900057-5 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Conference title - American Chemical Society symposium on Chemical and biological control on mineral growth and dissolution kinetics N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 14 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - anaerobic environment; calcite; calcrete; carbonate rocks; carbonates; crystal chemistry; fluid inclusions; gases; geochemistry; inclusions; mass spectra; New Mexico; precipitation; saturated zone; sedimentary rocks; SEM data; soils; spectra; terrestrial environment; travertine; United States; unsaturated zone; veins; volatiles; water DO - http://dx.doi.org/10.1016/S0009-2541(96)00057-5 ER - TY - JOUR T1 - Neutron powder diffraction study of hydrogarnet to 9.0 GPa AN - 52765977; 1997-007118 AB - The crystal structure of synthetic, deuterated katoite [Ca (sub 3) Al (sub 2) (O (sub 4) D (sub 4) ) (sub 3) ] has been refined at 0.0001, 0.78, 3.6, 6.1, 7.9 and 9.0 GPa using the opposed-anvil Paris-Edinburgh cell and the POLARIS powder diffractometer at the UK pulsed spallation source, ISIS. This study represents the first neutron diffraction refinement of a moderately complex mineral structure (V approximately 2000 Aa (super 3) , Z = 8) at P >> approximately 3 GPa. JF - American Mineralogist AU - Lager, George A AU - Von Dreele, Robert B Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 1097 EP - 1104 PB - Mineralogical Society of America, Washington, DC VL - 81 IS - 9-10 SN - 0003-004X, 0003-004X KW - silicates KW - nesosilicates KW - phase equilibria KW - garnet group KW - orthosilicates KW - neutron diffraction data KW - crystal structure KW - hydrogarnet KW - P-T conditions KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52765977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Neutron+powder+diffraction+study+of+hydrogarnet+to+9.0+GPa&rft.au=Lager%2C+George+A%3BVon+Dreele%2C+Robert+B&rft.aulast=Lager&rft.aufirst=George&rft.date=1996-10-01&rft.volume=81&rft.issue=9-10&rft.spage=1097&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 31 N1 - PubXState - DC N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - crystal structure; garnet group; hydrogarnet; nesosilicates; neutron diffraction data; orthosilicates; P-T conditions; phase equilibria; silicates ER - TY - JOUR T1 - Iron acquisition from hydrous Fe(III)-oxides by an aerobic Pseudomonas sp. AN - 52762080; 1997-007626 AB - Iron is a metabolic requirement of living systems, yet iron is very insoluble in aerobic, neutral environments. Therefore, the amount of iron in solution under these conditions is not sufficient to meet the nutrient requirements of microorganisms. It has been assumed that microorganisms acquire iron in these environments through the use of specific iron chelating compounds called siderophores. Interestingly, there is little quantitative data in the literature to support this hypothesis. Our studies were initiated to investigate the mechanism(s) used by an aerobic microorganism to acquire iron from a relatively insoluble iron oxide. When iron was supplied in the form of hematite, a Pseudomonas sp. was able to achieve moderate growth, as compared to growth on FeEDTA. Analysis using high-performance liquid chromatography (HPLC) of the metabolic products of this species showed significant differences between growth on hematite as compared to FeEDTA. The results of these experiments will be discussed in terms of our current knowledge of microbial enhanced iron dissolution, and compared to abiotic dissolution rates. JF - Chemical Geology AU - Hersman, Larry AU - Maurice, Patricia AU - Sposito, Garrison A2 - Stillings, Lisa L. Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 25 EP - 31 PB - Elsevier, Amsterdam VL - 132 IS - 1-4 SN - 0009-2541, 0009-2541 KW - thallophytes KW - soils KW - corrosion KW - chemical weathering KW - Plantae KW - experimental studies KW - iron oxides KW - Pseudomonas KW - solution KW - weathering KW - iron KW - aerobic environment KW - hydroxides KW - ferric iron KW - biogenic processes KW - hematite KW - metals KW - chromatograms KW - bacteria KW - oxides KW - geochemistry KW - synthetic materials KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52762080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Iron+acquisition+from+hydrous+Fe%28III%29-oxides+by+an+aerobic+Pseudomonas+sp.&rft.au=Hersman%2C+Larry%3BMaurice%2C+Patricia%3BSposito%2C+Garrison&rft.aulast=Hersman&rft.aufirst=Larry&rft.date=1996-10-01&rft.volume=132&rft.issue=1-4&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2FS0009-2541%2896%2900038-1 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Conference title - American Chemical Society symposium on Chemical and biological control on mineral growth and dissolution kinetics N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 33 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - aerobic environment; bacteria; biogenic processes; chemical weathering; chromatograms; corrosion; experimental studies; ferric iron; geochemistry; hematite; hydroxides; iron; iron oxides; metals; microorganisms; oxides; Plantae; Pseudomonas; soils; solution; synthetic materials; thallophytes; weathering DO - http://dx.doi.org/10.1016/S0009-2541(96)00038-1 ER - TY - JOUR T1 - Water erosion monitoring and experimentation for global change studies AN - 52753568; 1997-018369 JF - Journal of Soil and Water Conservation AU - Poesen, J W AU - Boardman, J AU - Wilcox, B AU - Valentin, C Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 386 EP - 390 PB - Soil Conservation Society of America, Ankeny, IA VL - 51 IS - 5 SN - 0022-4561, 0022-4561 KW - terrestrial environment KW - degradation KW - erosion KW - data acquisition KW - data processing KW - ecosystems KW - atmospheric precipitation KW - simulation KW - mass movements KW - climate effects KW - soil erosion KW - soils KW - hydrology KW - monitoring KW - global KW - wind erosion KW - water erosion KW - models KW - erosion control KW - runoff KW - tillage KW - erodibility KW - land use KW - changes KW - 25:Soils KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52753568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=Water+erosion+monitoring+and+experimentation+for+global+change+studies&rft.au=Poesen%2C+J+W%3BBoardman%2C+J%3BWilcox%2C+B%3BValentin%2C+C&rft.aulast=Poesen&rft.aufirst=J&rft.date=1996-10-01&rft.volume=51&rft.issue=5&rft.spage=386&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ L2 - http://www.jswconline.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 66 N1 - PubXState - IA N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JSWCA3 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; changes; climate effects; data acquisition; data processing; degradation; ecosystems; erodibility; erosion; erosion control; global; hydrology; land use; mass movements; models; monitoring; runoff; simulation; soil erosion; soils; terrestrial environment; tillage; water erosion; wind erosion ER - TY - JOUR T1 - Isolation of soluble (super 99) Tc as a compact solid using a recyclable, redox-active, metal-complex extractant AN - 52634026; 1997-078408 JF - Environmental Science & Technology, ES & T AU - Clark, Jennifer F AU - Clark, Dustin L AU - Whitener, Glenn D AU - Schroeder, Norman C AU - Strauss, Steven H Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 3124 EP - 3127 PB - American Chemical Society, Washington, DC VL - 30 IS - 10 SN - 0013-936X, 0013-936X KW - technetium KW - high-level waste KW - isotopes KW - toluene KW - separation KW - Tc-99 KW - aqueous solutions KW - solubility KW - radioactive waste KW - physical properties KW - organic compounds KW - solvents KW - radioactive isotopes KW - isolation KW - metals KW - hydrocarbons KW - chemical properties KW - reduction KW - waste disposal KW - mobility KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52634026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Isolation+of+soluble+%28super+99%29+Tc+as+a+compact+solid+using+a+recyclable%2C+redox-active%2C+metal-complex+extractant&rft.au=Clark%2C+Jennifer+F%3BClark%2C+Dustin+L%3BWhitener%2C+Glenn+D%3BSchroeder%2C+Norman+C%3BStrauss%2C+Steven+H&rft.aulast=Clark&rft.aufirst=Jennifer&rft.date=1996-10-01&rft.volume=30&rft.issue=10&rft.spage=3124&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aqueous solutions; aromatic hydrocarbons; chemical properties; high-level waste; hydrocarbons; isolation; isotopes; metals; mobility; organic compounds; physical properties; radioactive isotopes; radioactive waste; reduction; separation; solubility; solvents; Tc-99; technetium; toluene; waste disposal ER - TY - JOUR T1 - Physical constraints on mining explosions; synergy of seismic and video data with three dimensional models AN - 51045135; 1998-000008 JF - Seismological Research Letters AU - Stump, Brian W AU - Anderson, David P AU - Pearson, D Craig Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 9 EP - 24 PB - Seismological Society of America, Eastern Section, [El Cerrito, CA] VL - 67 IS - 5 SN - 0895-0695, 0895-0695 KW - mining KW - monitoring KW - boreholes KW - explosions KW - mining geology KW - video methods KW - seismic sources KW - interpretation KW - instruments KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51045135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Physical+constraints+on+mining+explosions%3B+synergy+of+seismic+and+video+data+with+three+dimensional+models&rft.au=Stump%2C+Brian+W%3BAnderson%2C+David+P%3BPearson%2C+D+Craig&rft.aulast=Stump&rft.aufirst=Brian&rft.date=1996-10-01&rft.volume=67&rft.issue=5&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 9 N1 - PubXState - CA] N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - boreholes; Comprehensive Test Ban Treaty; explosions; instruments; interpretation; mining; mining geology; monitoring; seismic sources; video methods ER - TY - JOUR T1 - Slow dynamics in the nonlinear elastic response of Berea Sandstone AN - 50170299; 1997-006594 AB - A typical resonance curve--measured acceleration versus drive frequency--made on a thin bar of rock shows peak bending with a softening (nonlinear) modulus as drive levels are increased. The shapes of these nonlinear resonance curves were found in earlier work to depend somewhat on sweep rate; these "slow dynamics" are now examined and quantified. We have measured slow dynamics in a 0.3 m long, 50 mm diameter bar of Berea sandstone under ambient conditions. Peak strain levels during the experiments ranged from 10 (super -11) to 10 (super -5) at driving frequencies near 4 kHz, the fundamental longitudinal resonance frequency of the bar. Slow dynamics begin to manifest themselves at strain amplitudes above 10 (super -6) at ambient conditions and at the onset of nonlinear peak bending. Strains above this value condition the rock, altering its response for minutes to hours after the drive has been turned off. Copyright 1996 by the American Geophysical Union. JF - Geophysical Research Letters AU - ten Cate, James A AU - Shankland, Thomas J Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 3019 EP - 3022 PB - American Geophysical Union, Washington, DC VL - 23 IS - 21 SN - 0094-8276, 0094-8276 KW - United States KW - non-linear distortion KW - Amherst Ohio KW - elasticity KW - strain KW - Paleozoic KW - Berea Sandstone KW - sandstone KW - frequency KW - elastic materials KW - rock mechanics KW - resonance KW - sedimentary rocks KW - Cleveland Quarries KW - Lorain County Ohio KW - clastic rocks KW - Ohio KW - dynamic properties KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50170299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Slow+dynamics+in+the+nonlinear+elastic+response+of+Berea+Sandstone&rft.au=ten+Cate%2C+James+A%3BShankland%2C+Thomas+J&rft.aulast=ten+Cate&rft.aufirst=James&rft.date=1996-10-01&rft.volume=23&rft.issue=21&rft.spage=3019&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F96GL02884 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 12 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Amherst Ohio; Berea Sandstone; clastic rocks; Cleveland Quarries; dynamic properties; elastic materials; elasticity; frequency; Lorain County Ohio; non-linear distortion; Ohio; Paleozoic; resonance; rock mechanics; sandstone; sedimentary rocks; strain; United States DO - http://dx.doi.org/10.1029/96GL02884 ER - TY - JOUR T1 - Accurate recovery of articulator positions from acoustics: new conclusions based on human data. AN - 85164789; pmid-8817906 AB - Vocal tract models are often used to study the problem of mapping from the acoustic transfer function to the vocal tract area function (inverse mapping). Unfortunately, results based on vocal tract models are strongly affected by the assumptions underlying the models. In this study, the mapping from acoustics (digitized speech samples) to articulation (measurements of the positions of receiver coils placed on the tongue, jaw, and lips) is examined using human data from a single speaker: Simultaneous acoustic and articulator measurements made for vowel-to-vowel transitions, /g/ closures, and transitions into and out of /g/ closures. Articulator positions were measured using an EMMA system to track coils placed on the lips, jaw, and tongue. Using these data, look-up tables were created that allow articulator positions to be estimated from acoustic signals. On a data set not used for making look-up tables, correlations between estimated and actual coil positions of around 94% and root-mean-squared errors around 2 mm are common for coils on the tongue. An error source evaluation shows that estimating articulator positions from quantized acoustics gives root-mean-squared errors that are typically less than 1 mm greater than the errors that would be obtained from quantizing the articulator positions themselves. This study agrees with and extends previous studies of human data by showing that for the data studied, speech acoustics can be used to accurately recover articulator positions. JF - The Journal of the Acoustical Society of America AU - Hogden, J AU - Lofqvist, A AU - Gracco, Vincent L AU - Zlokarnik, I AU - Rubin, P AU - Saltzman, E AD - Los Alamos National Laboratory, New Mexico 87545, USA.; School of Communication Sciences and Disorders, School of Medicine, McGill University PY - 1996 SP - 1819 EP - 1834 VL - 100 IS - 3 SN - 0001-4966, 0001-4966 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85164789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+the+Acoustical+Society+of+America&rft.atitle=Accurate+recovery+of+articulator+positions+from+acoustics%3A+new+conclusions+based+on+human+data.&rft.au=Hogden%2C+J%3BLofqvist%2C+A%3BGracco%2C+Vincent+L%3BZlokarnik%2C+I%3BRubin%2C+P%3BSaltzman%2C+E&rft.aulast=Hogden&rft.aufirst=J&rft.date=1996-09-01&rft.volume=100&rft.issue=3&rft.spage=1819&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+the+Acoustical+Society+of+America&rft.issn=00014966&rft_id=info:doi/ LA - English DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Evaluation of the NESHAP radiological risk assessment. AN - 78218336; 8698567 AB - The Environmental Protection Agency performed a risk assessment as a basis for the National Emission Standards for Hazardous Air Pollutants. This paper compares the Environmental Protection Agency's risk assessment with the models used by the National Research Council's fifth Committee on the Biological Effects of Ionizing Radiations, the United Nations Scientific Committee on the Effects of Atomic Radiation, and the International Commission on Radiological Protection. Comparison of the parameters used by each organization suggests that the Environmental Protection Agency could improve its own risk assessment by adopting one of the assessments done by the BEIR V Committee, the United Nations Scientific Committee on the Effects of Atomic Radiation, and the International Commission on Radiological Protection. JF - Health physics AU - Wahl, L E AD - Air Quality Group (ESH-17), MS J987, Los Alamos National Laboratory NM 87545, USA. Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 279 EP - 283 VL - 71 IS - 3 SN - 0017-9078, 0017-9078 KW - Air Pollutants, Radioactive KW - 0 KW - Index Medicus KW - United States KW - Radiation Dosage KW - United States Environmental Protection Agency KW - Neoplasms, Radiation-Induced -- etiology KW - Humans KW - Dose-Response Relationship, Radiation KW - Risk Assessment KW - Air Pollutants, Radioactive -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78218336?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Evaluation+of+the+NESHAP+radiological+risk+assessment.&rft.au=Wahl%2C+L+E&rft.aulast=Wahl&rft.aufirst=L&rft.date=1996-09-01&rft.volume=71&rft.issue=3&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-09-05 N1 - Date created - 1996-09-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Mjolnir Structure; an impact crater in the Barents Sea AN - 52781338; 1996-074588 AB - A systematic search for impact indicators was conducted on a core of Late Jurassic - Early Cretaceous sedimentary strata from the vicinity of the proposed Mjoelnir impact structure, Barents Sea. A 0.8-m-thick section of the core was found to contain unequivocal indicators of meteoritic impact: shocked quartz grains and a strong enrichment in iridium. The ejecta-bearing strata were discovered only 30 km north-northeast of the structure, within a stratigraphic interval corresponding to the seismically defined deformation event at Mjoelnir. Further study of this unusually well preserved impact-crater - ejecta-layer pair may help constrain poorly understood aspects of large-magnitude meteorite impacts into the oceans. JF - Geology (Boulder) AU - Dypvik, Henning AU - Gudlaugsson, Steinar T AU - Tsikalas, Filippos AU - Attrep, Moses, Jr AU - Ferrell, Ray E, Jr AU - Krinsley, David H AU - Mork, Atle AU - Faleide, Jan Inge AU - Nagy, Jeno Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 779 EP - 782 PB - Geological Society of America (GSA), Boulder, CO VL - 24 IS - 9 SN - 0091-7613, 0091-7613 KW - impact features KW - Cretaceous KW - enrichment KW - data processing KW - platinum group KW - iridium KW - cores KW - Mjolnir Structure KW - marine sediments KW - sedimentary rocks KW - Barents Sea KW - sediments KW - Arctic Ocean KW - sand KW - Lower Cretaceous KW - Upper Jurassic KW - Jurassic KW - clastic sediments KW - metamorphism KW - ejecta KW - Mesozoic KW - claystone KW - craters KW - metals KW - impact craters KW - clastic rocks KW - shock metamorphism KW - SEM data KW - 12:Stratigraphy KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52781338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=Mjolnir+Structure%3B+an+impact+crater+in+the+Barents+Sea&rft.au=Dypvik%2C+Henning%3BGudlaugsson%2C+Steinar+T%3BTsikalas%2C+Filippos%3BAttrep%2C+Moses%2C+Jr%3BFerrell%2C+Ray+E%2C+Jr%3BKrinsley%2C+David+H%3BMork%2C+Atle%3BFaleide%2C+Jan+Inge%3BNagy%2C+Jeno&rft.aulast=Dypvik&rft.aufirst=Henning&rft.date=1996-09-01&rft.volume=24&rft.issue=9&rft.spage=779&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281996%290242.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 14 N1 - PubXState - CO N1 - Document feature - illus. incl. strat. col., sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Arctic Ocean; Barents Sea; clastic rocks; clastic sediments; claystone; cores; craters; Cretaceous; data processing; ejecta; enrichment; impact craters; impact features; iridium; Jurassic; Lower Cretaceous; marine sediments; Mesozoic; metals; metamorphism; Mjolnir Structure; platinum group; sand; sedimentary rocks; sediments; SEM data; shock metamorphism; Upper Jurassic DO - http://dx.doi.org/10.1130/0091-7613(1996)024<0779:MLSAIC>2.3.CO;2 ER - TY - JOUR T1 - 1993 to 1995 environmental surveillance data collected at or near Area G AN - 52647213; 1998-003767 AB - This report summarizes Environmental Surveillance data collected by the Water Quality and Hydrology Group during 1993, 1994, and 1995 at or in the vicinity of TA-54, Area-G of the Los Alamos National Laboratory, New Mexico. The summary includes radiochemical, metals, general inorganic, and organic analytical results. The tables list measured concentrations (or detection limits for results below detection limits), analytical uncertainties for radiochemical data, sample locations, and sample dates. A map showing sample locations is also included. JF - LA - Los Alamos Scientific Laboratory AU - Mullen, K AU - Collins, S AU - Rogers, D Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 17 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - calcium KW - Sr-90 KW - selenium KW - plutonium KW - halogens KW - lead KW - Lawrence Berkeley National Laboratory KW - tritium KW - New Mexico KW - Alameda County California KW - tin KW - California KW - vanadium KW - barium KW - fluorine KW - molybdenum KW - aluminum KW - cadmium KW - nitrate ion KW - pH KW - mercury KW - antimony KW - sulfate ion KW - monitoring KW - pollutants KW - surface water KW - Berkeley California KW - phosphate ion KW - organic compounds KW - titanium KW - americium KW - potassium KW - boron KW - strontium KW - United States KW - zinc KW - magnesium KW - acetone KW - cobalt KW - isotopes KW - copper KW - Am-241 KW - Pu-239 KW - manganese KW - iron KW - ground water KW - radioactive isotopes KW - cesium KW - sediments KW - Pu-238 KW - ecology KW - geochemistry KW - chromium KW - soils KW - esters KW - chlorine KW - alkaline earth metals KW - silver KW - arsenic KW - alkali metals KW - pollution KW - sodium KW - hydrochemistry KW - inorganic materials KW - phthalates KW - Cs-137 KW - metals KW - hydrogen KW - nickel KW - cyanides KW - actinides KW - beryllium KW - ketones KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52647213?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Mullen%2C+K%3BCollins%2C+S%3BRogers%2C+D&rft.aulast=Mullen&rft.aufirst=K&rft.date=1996-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=1993+to+1995+environmental+surveillance+data+collected+at+or+near+Area+G&rft.title=1993+to+1995+environmental+surveillance+data+collected+at+or+near+Area+G&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96015349NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - acetone; actinides; Alameda County California; alkali metals; alkaline earth metals; aluminum; Am-241; americium; antimony; arsenic; barium; Berkeley California; beryllium; boron; cadmium; calcium; California; cesium; chlorine; chromium; cobalt; copper; Cs-137; cyanides; ecology; esters; fluorine; geochemistry; ground water; halogens; hydrochemistry; hydrogen; inorganic materials; iron; isotopes; ketones; Lawrence Berkeley National Laboratory; lead; magnesium; manganese; mercury; metals; molybdenum; monitoring; New Mexico; nickel; nitrate ion; organic compounds; pH; phosphate ion; phthalates; plutonium; pollutants; pollution; potassium; Pu-238; Pu-239; radioactive isotopes; sediments; selenium; silver; sodium; soils; Sr-90; strontium; sulfate ion; surface water; tin; titanium; tritium; United States; vanadium; zinc ER - TY - JOUR T1 - Batch sorption results for neptunium transport through Yucca Mountain tuffs; Yucca Mountain site characterization program milestone 3349 AN - 52643830; 1998-003515 AB - We studied the sorption of neptunium onto tuffs characteristic of the proposed nuclear waste repository at Yucca Mountain, Nevada. The neptunium was in the Np(V) oxidation state under oxidizing conditions in groundwaters from two wells located close to the repository site (J-13 and UE-25 p No.1). We used devitrified, vitric, zeolitic (with emphasis on clinoptilolite-rich samples), and calcite-rich tuffs characteristic of the geology of the site. Neptunium sorbed well onto calcite and calcite-rich tuffs, indicating that a significant amount of neptunium retardation can be expected under fractured-flow scenarios because of calcite coating of the fractures. Neptunium sorption onto clinoptilolite-rich zeolitic tuffs in J-13 well water (pH from 7 to 8.5) was moderate, increased with decreasing pH, and correlated to surface area and amount of clinoptilolite. Neptunium sorbed poorly onto zeolitic tuffs from UE-25 p No.1 groundwater (pH from 7 to 9) and onto devitrified and vitric tuffs from J-13 and UE-25 p No.1 waters (pH from 7 to 9). Iron oxides appeared to be passivated in tuffs, not seeming to contribute to the observed neptunium sorption, even though neptunium sorption onto synthetic iron oxide is significant. JF - LA - Los Alamos Scientific Laboratory AU - Triay, I R AU - Cotter, C R AU - Huddleston, M H AU - Leonard, D E Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 70 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - high-level waste KW - neptunium KW - volcanic rocks KW - isotopes KW - site exploration KW - igneous rocks KW - pollution KW - migration of elements KW - Nye County Nevada KW - preventive measures KW - radioactive waste KW - pyroclastics KW - radioactive isotopes KW - metals KW - underground installations KW - tuff KW - waste disposal KW - Yucca Mountain KW - actinides KW - underground disposal KW - Nevada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52643830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Triay%2C+I+R%3BCotter%2C+C+R%3BHuddleston%2C+M+H%3BLeonard%2C+D+E&rft.aulast=Triay&rft.aufirst=I&rft.date=1996-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Batch+sorption+results+for+neptunium+transport+through+Yucca+Mountain+tuffs%3B+Yucca+Mountain+site+characterization+program+milestone+3349&rft.title=Batch+sorption+results+for+neptunium+transport+through+Yucca+Mountain+tuffs%3B+Yucca+Mountain+site+characterization+program+milestone+3349&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96014953NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - actinides; high-level waste; igneous rocks; isotopes; metals; migration of elements; neptunium; Nevada; Nye County Nevada; pollution; preventive measures; pyroclastics; radioactive isotopes; radioactive waste; site exploration; tuff; underground disposal; underground installations; United States; volcanic rocks; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Predictions of tracer transport in interwell tracer tests at the C-Hole complex; Yucca Mountain site characterization project report milestone 4077 AN - 52633891; 1998-003321 AB - This report presents predictions of tracer transport in interwell tracer tests that are to be conducted at the C-Hole complex at the Nevada Test Site on behalf of the Yucca Mountain Site Characterization Project. The predictions are used to make specific recommendations about the manner in which the tracer test should be conducted to best satisfy the needs of the Project. The objective of the tracer tests is to study flow and species transport under saturated conditions in the fractured tuffs near Yucca Mountain, Nevada, the site of a potential high-level nuclear waste repository. The potential repository will be located in the unsaturated zone within Yucca Mountain. The saturated zone beneath and around the mountain represents the final barrier to transport to the accessible environment that radionuclides will encounter if they breach the engineered barriers within the repository and the barriers to flow and transport provided by the unsaturated zone. Background information on the C-Holes is provided in Section 1.1, and the planned tracer testing program is discussed in Section 1.2. JF - LA - Los Alamos Scientific Laboratory AU - Reimus, P W Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 83 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - fractured materials KW - high-level waste KW - volcanic rocks KW - isotopes KW - site exploration KW - igneous rocks KW - migration of elements KW - fluid dynamics KW - Nye County Nevada KW - porosity KW - radioactive waste KW - ground water KW - models KW - pyroclastics KW - radioactive isotopes KW - tracers KW - tuff KW - hydraulic conductivity KW - waste disposal KW - Yucca Mountain KW - Nevada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52633891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Reimus%2C+P+W&rft.aulast=Reimus&rft.aufirst=P&rft.date=1996-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Predictions+of+tracer+transport+in+interwell+tracer+tests+at+the+C-Hole+complex%3B+Yucca+Mountain+site+characterization+project+report+milestone+4077&rft.title=Predictions+of+tracer+transport+in+interwell+tracer+tests+at+the+C-Hole+complex%3B+Yucca+Mountain+site+characterization+project+report+milestone+4077&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96015341NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - fluid dynamics; fractured materials; ground water; high-level waste; hydraulic conductivity; igneous rocks; isotopes; migration of elements; models; Nevada; Nye County Nevada; porosity; pyroclastics; radioactive isotopes; radioactive waste; site exploration; tracers; tuff; United States; volcanic rocks; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Alpha particle mutagenesis of human lymphoblastoid cell lines. AN - 78311736; 8794851 AB - Despite being derived from the same donor, the human lymphoblastoid cell lines WTK1 and TK6 have markedly different responses to low LET radiation. We originally observed that WTK1 was more resistant to the cytotoxic effects of X-irradiation, but significantly more sensitive to mutation induction at both the TK and HPRT loci. In an effort to better understand these properties, we have examined the effects of alpha-particles on these cells. Relative to TK6, WTK1 has enhanced survival and mutation after both X-ray and alpha-particle exposure. While the HPRT locus was significantly more mutable in WTK1 as a function of alpha-particle versus X-ray dose, the TK locus was only slightly more sensitive to alpha-particle mutagenesis. In addition, the slowly growing TK mutants that constitute the majority of X-ray-induced TK mutants of TK6 were recovered in lower proportions following alpha-particle exposures. This is consistent with the further finding that in both cell lines, loss of heterozygosity occurred in a smaller fraction of alpha-induced TK mutants than X-ray-induced mutants. These results are consistent with our previous model suggesting that WTK1 has an error-prone repair pathway that is either missing or deficient in TK6, and further suggest that this pathway may be involved in the processing of alpha-particle-induced damage. JF - International journal of radiation biology AU - Amundson, S A AU - Chen, D J AU - Okinaka, R T AD - Life Sciences Division LS-6, Los Alamos National Laboratory, NM, USA. Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 219 EP - 226 VL - 70 IS - 2 SN - 0955-3002, 0955-3002 KW - Hypoxanthine Phosphoribosyltransferase KW - EC 2.4.2.8 KW - Thymidine Kinase KW - EC 2.7.1.21 KW - Index Medicus KW - Space life sciences KW - Non-programmatic KW - X-Rays KW - Chromosome Deletion KW - Base Sequence KW - Hypoxanthine Phosphoribosyltransferase -- genetics KW - Humans KW - Molecular Sequence Data KW - Dose-Response Relationship, Radiation KW - Cell Survival -- radiation effects KW - Cell Line KW - Thymidine Kinase -- genetics KW - Alpha Particles KW - Mutation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78311736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+journal+of+radiation+biology&rft.atitle=Alpha+particle+mutagenesis+of+human+lymphoblastoid+cell+lines.&rft.au=Amundson%2C+S+A%3BChen%2C+D+J%3BOkinaka%2C+R+T&rft.aulast=Amundson&rft.aufirst=S&rft.date=1996-08-01&rft.volume=70&rft.issue=2&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=International+journal+of+radiation+biology&rft.issn=09553002&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-10-17 N1 - Date created - 1996-10-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Earthquake-like behaviour of soft gamma -ray repeaters AN - 52823893; 1996-063991 JF - Nature (London) AU - Cheng, Baolian AU - Epstein, Richard I AU - Guyer, Robert A AU - Young, A Cody Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 518 EP - 520 PB - Macmillan Journals, London VL - 382 IS - 6591 SN - 0028-0836, 0028-0836 KW - United States KW - seismology KW - strain KW - statistical analysis KW - magnitude KW - California KW - Wyoming KW - size distribution KW - Southern California KW - extraterrestrial geology KW - stars KW - Yellowstone National Park KW - terrestrial comparison KW - Utah KW - seismic energy KW - earthquakes KW - starquakes KW - 19:Seismology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52823893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Earthquake-like+behaviour+of+soft+gamma+-ray+repeaters&rft.au=Cheng%2C+Baolian%3BEpstein%2C+Richard+I%3BGuyer%2C+Robert+A%3BYoung%2C+A+Cody&rft.aulast=Cheng&rft.aufirst=Baolian&rft.date=1996-08-01&rft.volume=382&rft.issue=6591&rft.spage=518&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/ L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 31 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - California; earthquakes; extraterrestrial geology; magnitude; seismic energy; seismology; size distribution; Southern California; starquakes; stars; statistical analysis; strain; terrestrial comparison; United States; Utah; Wyoming; Yellowstone National Park ER - TY - JOUR T1 - Equilibrium in the clinoptilolite-H (sub 2) O system AN - 52806846; 1996-066260 AB - A thermodynamic formulation for the sorption of H (sub 2) O in clinoptilolite has been obtained from analysis of equilibrium data collected by thermogravimetry on near end-member Ca-, Na-, and K-exchanged natural clinoptilolite from Fish Creek Mts, Nevada. JF - American Mineralogist AU - Carey, J William AU - Bish, David L Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 952 EP - 962 PB - Mineralogical Society of America, Washington, DC VL - 81 IS - 7-8 SN - 0003-004X, 0003-004X KW - water KW - silicates KW - phase equilibria KW - clinoptilolite KW - zeolite group KW - free energy KW - framework silicates KW - thermodynamic properties KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52806846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Equilibrium+in+the+clinoptilolite-H+%28sub+2%29+O+system&rft.au=Carey%2C+J+William%3BBish%2C+David+L&rft.aulast=Carey&rft.aufirst=J&rft.date=1996-08-01&rft.volume=81&rft.issue=7-8&rft.spage=952&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1996-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - clinoptilolite; framework silicates; free energy; phase equilibria; silicates; thermodynamic properties; water; zeolite group ER - TY - JOUR T1 - Analysis of high-frequency P (sub g) /L (sub g) ratios from NTS explosions and Western U.S. earthquakes AN - 52782835; 1996-073148 JF - Bulletin of the Seismological Society of America AU - Taylor, Steven R Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 1042 EP - 1053 PB - Seismological Society of America, Berkeley, CA VL - 86 IS - 4 SN - 0037-1106, 0037-1106 KW - United States KW - P-waves KW - body waves KW - guided waves KW - explosions KW - magnitude KW - Lg-waves KW - elastic waves KW - surface waves KW - Western U.S. KW - seismic waves KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52782835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Analysis+of+high-frequency+P+%28sub+g%29+%2FL+%28sub+g%29+ratios+from+NTS+explosions+and+Western+U.S.+earthquakes&rft.au=Taylor%2C+Steven+R&rft.aulast=Taylor&rft.aufirst=Steven&rft.date=1996-08-01&rft.volume=86&rft.issue=4&rft.spage=1042&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 29 N1 - PubXState - CA N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - body waves; earthquakes; elastic waves; explosions; guided waves; Lg-waves; magnitude; P-waves; seismic waves; surface waves; United States; Western U.S. ER - TY - JOUR T1 - Area G perimeter surface-soil and single-stage water sampling; environmental surveillance for fiscal year 94, Group ESH-19, Progress report AN - 52654496; 1998-003061 AB - ESH-19 personnel collected soil and single-stage water samples around the perimeter of Area G at Los Alamos National Laboratory during FY94 to characterize possible contaminant movement out of Area G through surface-water and sediment runoff. These samples were analyzed for tritium, total uranium, isotopic plutonium, americium-241, and cesium-137. Ten metals were also analyzed on selected soils using analytical laboratory techniques. All radiochemical data are compared with analogous samples collected during FY 93 and reported in LA-12986. Baseline concentrations for future disposal operations were established for metals and radionuclides by a sampling program in the proposed Area G Expansion Area. Considering the amount of radioactive waste that has been disposed at Area G, there is evidence of only low concentrations of radionuclides on perimeter surface soils. Consequently, little radioactivity is leaving the confines of Area G via the surface water runoff pathway. JF - LA - Los Alamos Scientific Laboratory AU - Conrad, R AU - Childs, M AU - Lyons, C R AU - Coriz, F Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 79 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - isotopes KW - plutonium KW - Am-241 KW - tritium KW - New Mexico KW - Los Alamos County New Mexico KW - biogeography KW - radioactive isotopes KW - cesium KW - ecology KW - soils KW - monitoring KW - pollutants KW - surface water KW - alkali metals KW - pollution KW - migration of elements KW - Los Alamos National Laboratory KW - Cs-137 KW - metals KW - hydrogen KW - americium KW - nuclear facilities KW - uranium KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52654496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Conrad%2C+R%3BChilds%2C+M%3BLyons%2C+C+R%3BCoriz%2C+F&rft.aulast=Conrad&rft.aufirst=R&rft.date=1996-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Area+G+perimeter+surface-soil+and+single-stage+water+sampling%3B+environmental+surveillance+for+fiscal+year+94%2C+Group+ESH-19%2C+Progress+report&rft.title=Area+G+perimeter+surface-soil+and+single-stage+water+sampling%3B+environmental+surveillance+for+fiscal+year+94%2C+Group+ESH-19%2C+Progress+report&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96015266NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; Am-241; americium; biogeography; cesium; Cs-137; ecology; hydrogen; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; metals; migration of elements; monitoring; New Mexico; nuclear facilities; plutonium; pollutants; pollution; radioactive isotopes; soils; surface water; tritium; United States; uranium ER - TY - JOUR T1 - Comparison of neptunium sorption results using batch and column techniques AN - 52646857; 1998-003603 AB - We used crushed-rock columns to study the sorption retardation of neptunium by zeolitic, devitrified, and vitric tuffs typical of those at the site of the potential high-level nuclear waste repository at Yucca Mountain, Nevada. We used two sodium bicarbonate waters (groundwater from Well J-13 at the site and water prepared to simulate groundwater from Well UE-25p No. 1) under oxidizing conditions. It was found that values of the sorption distribution coefficient, Kd, obtained from these column experiments under flowing conditions, regardless of the water or the water velocity used, agreed well with those obtained earlier from batch sorption experiments under static conditions. The batch sorption distribution coefficient can be used to predict the arrival time for neptunium eluted through the columns. On the other hand, the elution curves showed dispersivity, which implies that neptunium sorption in these tuffs may be nonlinear, irreversible, or noninstantaneous. As a result, use of a batch sorption distribution coefficient to calculate neptunium transport through Yucca Mountain tuffs would yield conservative values for neptunium release from the site. We also noted that neptunium (present as the anionic neptunyl carbonate complex) never eluted prior to tritiated water, which implies that charge exclusion does not appear to exclude neptunium from the tuff pores. The column experiments corroborated the trends observed in batch sorption experiments: neptunium sorption onto devitrified and vitric tuffs is minimal and sorption onto zeolitic tuffs decreases as the amount of sodium and bicarbonate/carbonate in the water increases. JF - LA - Los Alamos Scientific Laboratory AU - Triay, I R AU - Furlano, A C AU - Weaver, S C AU - Chipera, S J AU - Bish, D L Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 35 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - high-level waste KW - sorption KW - neptunium KW - volcanic rocks KW - Np-237 KW - isotopes KW - site exploration KW - igneous rocks KW - porous materials KW - migration of elements KW - Nye County Nevada KW - radioactive waste KW - ground water KW - pyroclastics KW - radioactive isotopes KW - metals KW - tuff KW - waste disposal KW - Yucca Mountain KW - actinides KW - underground disposal KW - Nevada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52646857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Triay%2C+I+R%3BFurlano%2C+A+C%3BWeaver%2C+S+C%3BChipera%2C+S+J%3BBish%2C+D+L&rft.aulast=Triay&rft.aufirst=I&rft.date=1996-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Comparison+of+neptunium+sorption+results+using+batch+and+column+techniques&rft.title=Comparison+of+neptunium+sorption+results+using+batch+and+column+techniques&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96013422NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - actinides; ground water; high-level waste; igneous rocks; isotopes; metals; migration of elements; neptunium; Nevada; Np-237; Nye County Nevada; porous materials; pyroclastics; radioactive isotopes; radioactive waste; site exploration; sorption; tuff; underground disposal; United States; volcanic rocks; waste disposal; Yucca Mountain ER - TY - RPRT T1 - Damage from the impacts of small asteroids AN - 52610730; 1998-030159 AB - The fragmentation of a small asteroid in the atmosphere greatly increases its aerodynamic drag and rate of energy dissipation. The differential atmospheric pressure across it disperses its fragments at a velocity that increases with atmospheric density and impact velocity and decreases with asteroid density. Extending our previous work, we use a spherical atmosphere and a fitted curve to its density profile to find the damage done by an asteroid entering the atmosphere at various zenith angles. In previous work we estimated the blast damage by scaling from data on nuclear explosions in the atmosphere during the 1940s, 1950s and early 1960s. This underestimated the blast from asteroid impacts because nuclear fireballs radiate away a larger fraction of their energy than do meteors, so less of their energy goes into the blast wave. We have redone the calculations to allow for this effect. We have found the area of destruction around the impact point in which the over pressure in the blast wave exceeds 4 pounds/inch (super 2) = 2.8X10 (super 5) dynes/cm (super 3) , which is enough to knock over trees and destroy buildings. About every 100 years an impactor should blast an area of 300 km (super 2) or more somewhere on the land area of Earth. The optical flux from asteroids 60 meters or more in diameter is enough to ignite pine forests. However, the blast from an impacting asteroid goes beyond the radius within which the fire starts. It tends to blow out the fire, so it is likely that the impact will char the forest (as at Tunguska), but it will not produce a sustained fire. Because of the atmosphere, asteroids less than about 200 m in diameter are not effective in producing craters and earthquakes. They are also not effective in producing water waves and tsunami in ocean impacts. Tsunami is probably the most devastating type of damage for asteroids that are between 200 meters and 1 km in diameter. JF - Damage from the impacts of small asteroids AU - Hills, J G AU - Goda, M P Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 28 VL - LA-UR-96-2973 | CONF-9607163-1 KW - tsunamis KW - fragmentation KW - ablation KW - impact features KW - geologic hazards KW - asteroids KW - explosions KW - damage KW - meteoroids KW - impacts KW - models KW - fires KW - comets KW - velocity KW - earthquakes KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52610730?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Hills%2C+J+G%3BGoda%2C+M+P&rft.aulast=Hills&rft.aufirst=J&rft.date=1996-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Damage+from+the+impacts+of+small+asteroids&rft.title=Damage+from+the+impacts+of+small+asteroids&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96014806NEG, Springfield, VA, United States N1 - SuppNotes - Presented at Tunguska 96, Bologna, Italy, July 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Gamma ray production and transport in Mars AN - 50153934; 1997-012478 AB - The elemental composition of the Martian surface can be determined by gamma ray spectroscopy from landers or orbiting spacecraft. We used the well-tested Los Alamos High Energy Transport (LAHET) Code System (LCS) to numerically simulate the galactic-cosmic-ray-induced processes producing secondary particles and gamma rays in Mars. For gamma ray lines, LCS was used only for the calculation of the particle fluxes in the Martian soil and atmosphere; these fluxes were then integrated with cross sections to calculate the production rates of gamma rays as a function of depth. The fluxes of gamma ray lines were then calculated both at the Martian surface and at an altitude of 378 km. The water content of the Martian soil and the atmospheric thickness were varied to establish the dependence of the particle distributions and gamma ray fluxes on these parameters. Most attention is devoted to gamma rays from neutron-induced reactions in the Martian soil, but contributions from the atmosphere, natural radioactivity, and from proton interactions are also mentioned. Our results are compared with those from previous studies. Copyright 1996 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Masarik, J AU - Reedy, Robert C Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 18 EP - 18,912 PB - American Geophysical Union, Washington, DC VL - 101 IS - E8 SN - 0148-0227, 0148-0227 KW - numerical analysis KW - atmosphere KW - surficial geology KW - Mars KW - simulation KW - emission spectra KW - terrestrial planets KW - planets KW - gamma rays KW - gamma-ray spectra KW - cosmic rays KW - spectra KW - geochemistry KW - regolith KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50153934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Gamma+ray+production+and+transport+in+Mars&rft.au=Masarik%2C+J%3BReedy%2C+Robert+C&rft.aulast=Masarik&rft.aufirst=J&rft.date=1996-08-01&rft.volume=101&rft.issue=E8&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F96JE01563 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 60 N1 - PubXState - DC N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; cosmic rays; emission spectra; gamma rays; gamma-ray spectra; geochemistry; Mars; numerical analysis; planets; regolith; remote sensing; simulation; spectra; surficial geology; terrestrial planets DO - http://dx.doi.org/10.1029/96JE01563 ER - TY - JOUR T1 - Thermal history of Colorado Plateau lithosphere from Sm-Nd mineral geochronology of xenoliths AN - 52813505; 1996-059586 AB - The thermal history of the lower crust and upper mantle of the Colorado Plateau region is reconstructed on the basis of Nd and Sr isotopes in minerals and whole rock xenoliths hosted by Tertiary minette and kimberlite. The mineral data (garnet and clinopyroxene) indicate that lower crustal granulite and amphibolite (equilibration depth nearly equal 25 km; equilibration temperature nearly equal 700 degrees C) were last equilibrated on a mineral scale at 1345+ or -10 Ma; a Sm-Nd garnet-whole rock age for a granitoid xenolith is also 1345+ or -10 Ma. Whole rock data indicate that the crustal rocks were extracted from the mantle at ca. 1900 Ma. The mineral ages, which are 30-100 m.y. younger than crystallization ages of Proterozoic "anorogenic" granitoids from regions bordering the Colorado Plateau, are interpreted as cooling ages set following the crustal thermal maximum at 1380-1440 Ma. The granulites and amphibolites have remained at temperatures below nearly equal 450 degrees C since 1350 Ma. Two eclogite xenoliths (equilibration depth nearly equal 45-60 km; equilibration temperature nearly equal 600 degrees C), which are inferred to be Precambrian as well, yield Sm-Nd garnet-clinopyroxene ages of 21.6+ or -1.2 and 21.0+ or -0.8 Ma. The eclogite mineral ages are probably the ages of the host Garnet Ridge and Moses Rock diatremes, and require that Nd isotopes were maintained in equilibrium right up to the time of entrainment. The isotopic data and the mineral textures suggest that the eclogites were undergoing active recrystallization at 21 Ma. The contrast in mineral ages between granulite and eclogite xenoliths indicates that the equilibration temperatures of the two rock types reflect different times of equilibration, and therefore cannot be considered as evidence for a negative thermal gradient at depth. The Rb-Sr mineral data from the xenoliths give variable early Paleozoic and Proterozoic ages that cannot easily be assigned to geologic events. JF - Geological Society of America Bulletin AU - Wendlandt, Eric AU - DePaolo, Donald J AU - Baldridge, W Scott Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 757 EP - 767 PB - Geological Society of America (GSA), Boulder, CO VL - 108 IS - 7 SN - 0016-7606, 0016-7606 KW - silicates KW - garnet group KW - continental crust KW - amphibolites KW - thermal history KW - recrystallization KW - Rb/Sr KW - plutonic rocks KW - clinopyroxene KW - geochronology KW - metamorphic rocks KW - inclusions KW - orthosilicates KW - absolute age KW - lower crust KW - chain silicates KW - upper mantle KW - lithosphere KW - Sr-87/Sr-86 KW - Tertiary KW - intrusions KW - Sm/Nd KW - strontium KW - crust KW - eclogite KW - United States KW - upper Precambrian KW - minette KW - isotopes KW - igneous rocks KW - mantle KW - ultramafic composition KW - granulites KW - stable isotopes KW - diatremes KW - Cenozoic KW - pyroxene group KW - whole rock KW - phase equilibria KW - dates KW - rare earths KW - xenoliths KW - alkaline earth metals KW - Precambrian KW - Colorado Plateau KW - isotope ratios KW - host rocks KW - Proterozoic KW - nesosilicates KW - Nd-144/Nd-143 KW - kimberlite KW - metals KW - neodymium KW - lamprophyres KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52813505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+of+America+Bulletin&rft.atitle=Thermal+history+of+Colorado+Plateau+lithosphere+from+Sm-Nd+mineral+geochronology+of+xenoliths&rft.au=Wendlandt%2C+Eric%3BDePaolo%2C+Donald+J%3BBaldridge%2C+W+Scott&rft.aulast=Wendlandt&rft.aufirst=Eric&rft.date=1996-07-01&rft.volume=108&rft.issue=7&rft.spage=757&rft.isbn=&rft.btitle=&rft.title=Geological+Society+of+America+Bulletin&rft.issn=00167606&rft_id=info:doi/10.1130%2F0016-7606%281996%291082.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 55 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - BUGMAF N1 - SubjectsTermNotLitGenreText - absolute age; alkaline earth metals; amphibolites; Cenozoic; chain silicates; clinopyroxene; Colorado Plateau; continental crust; crust; dates; diatremes; eclogite; garnet group; geochronology; granulites; host rocks; igneous rocks; inclusions; intrusions; isotope ratios; isotopes; kimberlite; lamprophyres; lithosphere; lower crust; mantle; metals; metamorphic rocks; minette; Nd-144/Nd-143; neodymium; nesosilicates; orthosilicates; phase equilibria; plutonic rocks; Precambrian; Proterozoic; pyroxene group; rare earths; Rb/Sr; recrystallization; silicates; Sm/Nd; Sr-87/Sr-86; stable isotopes; strontium; Tertiary; thermal history; ultramafic composition; United States; upper mantle; upper Precambrian; whole rock; xenoliths DO - http://dx.doi.org/10.1130/0016-7606(1996)108<0757:THOCPL>2.3.CO;2 ER - TY - JOUR T1 - Monte Carlo simulation of cosmogenic nuclide production by solar cosmic rays AN - 52764505; 1997-010546 JF - Meteoritics & Planetary Science AU - Masarik, J AU - Reedy, R C Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 84 EP - 85 PB - Meteoritical Society, Fayetteville, AR VL - 31, Suppl. SN - 1086-9379, 1086-9379 KW - Ne-21 KW - Ne-22 KW - irradiation KW - Moon KW - isotopes KW - Monte Carlo analysis KW - statistical analysis KW - cosmogenic elements KW - cosmochemistry KW - simulation KW - stable isotopes KW - noble gases KW - neon KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52764505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Monte+Carlo+simulation+of+cosmogenic+nuclide+production+by+solar+cosmic+rays&rft.au=Masarik%2C+J%3BReedy%2C+R+C&rft.aulast=Masarik&rft.aufirst=J&rft.date=1996-07-01&rft.volume=31%2C+Suppl.&rft.issue=&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 59th annual Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Last updated - 2013-09-20 N1 - SubjectsTermNotLitGenreText - cosmochemistry; cosmogenic elements; irradiation; isotopes; Monte Carlo analysis; Moon; Ne-21; Ne-22; neon; noble gases; simulation; stable isotopes; statistical analysis ER - TY - JOUR T1 - Production of cosmogenic nuclides in meteoroids of various shapes AN - 52760843; 1997-010547 JF - Meteoritics & Planetary Science AU - Masarik, J AU - Reedy, R C Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 85 PB - Meteoritical Society, Fayetteville, AR VL - 31, Suppl. SN - 1086-9379, 1086-9379 KW - genesis KW - isotopes KW - cosmogenic elements KW - effects KW - cosmochemistry KW - meteoroids KW - geometry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52760843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Production+of+cosmogenic+nuclides+in+meteoroids+of+various+shapes&rft.au=Masarik%2C+J%3BReedy%2C+R+C&rft.aulast=Masarik&rft.aufirst=J&rft.date=1996-07-01&rft.volume=31%2C+Suppl.&rft.issue=&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 59th annual Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2013-09-20 N1 - SubjectsTermNotLitGenreText - cosmochemistry; cosmogenic elements; effects; genesis; geometry; isotopes; meteoroids ER - TY - JOUR T1 - Speciation of uranium in Fernald soils by molecular spectroscopic methods; characterization of untreated soils AN - 52671788; 1997-070967 JF - Environmental Science & Technology, ES & T AU - Morris, David E AU - Allen, Patrick G AU - Berg, John M AU - Chisholm-Brause, J AU - Conradson, Steven D AU - Hess, Nancy J AU - Musgrave, John A AU - Tait, C Drew Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 2322 EP - 2331 PB - American Chemical Society, Washington, DC VL - 30 IS - 7 SN - 0013-936X, 0013-936X KW - United States KW - soils KW - experimental studies KW - degradation KW - pollutants KW - photochemistry KW - Fernald Nuclear Facility KW - pollution KW - X-ray spectra KW - radioactive waste KW - ligands KW - detection KW - Hamilton County Ohio KW - metals KW - Cincinnati Ohio KW - chemical properties KW - uranium KW - spectra KW - waste disposal KW - actinides KW - Ohio KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52671788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Speciation+of+uranium+in+Fernald+soils+by+molecular+spectroscopic+methods%3B+characterization+of+untreated+soils&rft.au=Morris%2C+David+E%3BAllen%2C+Patrick+G%3BBerg%2C+John+M%3BChisholm-Brause%2C+J%3BConradson%2C+Steven+D%3BHess%2C+Nancy+J%3BMusgrave%2C+John+A%3BTait%2C+C+Drew&rft.aulast=Morris&rft.aufirst=David&rft.date=1996-07-01&rft.volume=30&rft.issue=7&rft.spage=2322&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; chemical fractionation; chemical properties; Cincinnati Ohio; degradation; detection; experimental studies; Fernald Nuclear Facility; Hamilton County Ohio; ligands; metals; Ohio; photochemistry; pollutants; pollution; radioactive waste; soils; spectra; United States; uranium; waste disposal; X-ray spectra ER - TY - JOUR T1 - Sources of chloride in hydrothermal fluids from the Valles Caldera, New Mexico: a (super 36) Cl study AN - 50328449; 1996-066328 AB - The Valles caldera in New Mexico hosts a high-temperature geothermal system, which is manifested in a number of hot springs discharging in and around the caldera. In order to determine the fluid pathways and the origin of chloride in this system, we measured (super 36) Cl/Cl ratios in waters from high-temperature drill holes and from surface springs in this region. The waters fall into two general categories: recent meteoric water samples with low Cl (super -) concentrations (<10 mg/L) and relatively high (super 36) Cl/Cl ratios [(300-1000)X10 (super -15) ]; and geothermal brines with high Cl (super -) concentrations (800-9400 mg/L) but low (super 36) Cl/Cl ratios [(11-26)X10 (super ) -15]. The (super 36) Cl/Cl ratios for meteoric waters are slightly higher than expected for this region, suggesting a small addition of anthropogenic (super 36) Cl. Because of low (super 36) Cl/Cl ratios and high Cl (super -) concentrations in the brines, chloride in these waters must be derived from subsurface sources. A comparison between the observed (super 36) Cl/Cl ratios in the brines and those calculated for potential source formations in this region indicates that the present host formations, mainly volcanic tuffs, cannot be major sources of chloride, and that formations at greater depth, such as the Paleozoic and Precambrian formations are more likely to be sources of chloride in the brines. The results suggest that brines are meteoric waters which penetrated into the basement where they derive chloride from leaching of basement rocks and/or from saline pore fluids trapped there, along with likely addition of chloride from Paleozoic strata. Although these fluids have since come to reside in the intracaldera volcanic sequence after convective upwelling, they do not derive much Cl (super -) from the volcanic strata; and residence times of fluids in the volcanics are <100,000 years. JF - Journal of Volcanology and Geothermal Research AU - Rao, U AU - Fehn, U AU - Teng, R T D AU - Goff, F Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 59 EP - 70 PB - Elsevier, Amsterdam VL - 72 IS - 1-2 SN - 0377-0273, 0377-0273 KW - United States KW - chlorine KW - upwelling KW - meteoric water KW - isotopes KW - Paleozoic KW - Cl-36 KW - halogens KW - Sandoval County New Mexico KW - New Mexico KW - hydrothermal conditions KW - radioactive isotopes KW - magmas KW - Valles Caldera KW - volcanoes KW - Jemez Mountains KW - crystallization KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50328449?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Sources+of+chloride+in+hydrothermal+fluids+from+the+Valles+Caldera%2C+New+Mexico%3A+a+%28super+36%29+Cl+study&rft.au=Rao%2C+U%3BFehn%2C+U%3BTeng%2C+R+T+D%3BGoff%2C+F&rft.aulast=Rao&rft.aufirst=U&rft.date=1996-07-01&rft.volume=72&rft.issue=1-2&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2F0377-0273%2895%2900069-0 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1996-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - chlorine; Cl-36; crystallization; halogens; hydrothermal conditions; isotopes; Jemez Mountains; magmas; meteoric water; New Mexico; Paleozoic; radioactive isotopes; Sandoval County New Mexico; United States; upwelling; Valles Caldera; volcanoes DO - http://dx.doi.org/10.1016/0377-0273(95)00069-0 ER - TY - JOUR T1 - The upper mantle structure of the central Rio Grande Rift region from teleseismic P and S wave travel time delays and attenuation AN - 50169101; 1997-005160 AB - The lithosphere beneath a continental rift should be significantly modified due to extension. To image the lithosphere beneath the Rio Grande rift (RGR), we analyzed teleseismic travel time delays of both P and S wave arrivals and solved for the attenuation of P and S waves for four seismic experiments spanning the Rio Grande rift. Two tomographic inversions of the P wave travel time data are given: an Aki-Christofferson-Husebye (ACH) block model inversion and a downward projection inversion. The tomographic inversions reveal a NE-SW to NNE-SSW trending feature at depths of 35 to 145 km with a velocity reduction of 7 to 8% relative to mantle velocities beneath the Great Plains. This region correlates with the transition zone between the Colorado Plateau and the Rio Grande rift and is bounded on the NW by the Jemez lineament, a N52 degrees E trending zone of late Miocene to Holocene volcanism. S wave delays plotted against P wave delays are fit with a straight line giving a slope of 3.0+ or -0.4. This correlation and the absolute velocity reduction imply that temperatures in the lithosphere are close to the solidus, consistent with, but not requiring, the presence of partial melt in the mantle beneath the Rio Grande rift. The attenuation data could imply the presence of partial melt. We compare our results with other geophysical and geologic data. We propose that any north-south trending thermal (velocity) anomaly that may have existed in the upper mantle during earlier (Oligocene to late Miocene) phases of rifting and that may have correlated with the axis of the rift has diminished with time and has been overprinted with more recent structure. The anomalously low-velocity body presently underlying the transition zone between the core of the Colorado Plateau and the rift may reflect processes resulting from the modern (Pliocene to present) regional stress field (oriented WNW-ESE), possibly heralding future extension across the Jemez lineament and transition zone. Copyright 1996 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Slack, Philip D AU - Davis, Paul M AU - Baldridge, W Scott AU - Olsen, Kenneth H AU - Glahn, Andreas AU - Achauer, Ulrich AU - Spence, William Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 3 EP - 16,025 PB - American Geophysical Union, Washington, DC VL - 101 IS - B7 SN - 0148-0227, 0148-0227 KW - United States KW - upper mantle KW - P-waves KW - North America KW - body waves KW - Colorado Plateau KW - lithosphere KW - partial melting KW - mantle KW - elastic waves KW - New Mexico KW - teleseismic signals KW - Rio Grande Rift KW - extension KW - heat flow KW - velocity structure KW - Great Plains KW - seismic waves KW - Jemez Lineament KW - geothermal gradient KW - seismic networks KW - S-waves KW - arrays KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50169101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+upper+mantle+structure+of+the+central+Rio+Grande+Rift+region+from+teleseismic+P+and+S+wave+travel+time+delays+and+attenuation&rft.au=Slack%2C+Philip+D%3BDavis%2C+Paul+M%3BBaldridge%2C+W+Scott%3BOlsen%2C+Kenneth+H%3BGlahn%2C+Andreas%3BAchauer%2C+Ulrich%3BSpence%2C+William&rft.aulast=Slack&rft.aufirst=Philip&rft.date=1996-07-01&rft.volume=101&rft.issue=B7&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F96JB00109 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 43 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 plate, 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arrays; body waves; Colorado Plateau; elastic waves; extension; geothermal gradient; Great Plains; heat flow; Jemez Lineament; lithosphere; mantle; New Mexico; North America; P-waves; partial melting; Rio Grande Rift; S-waves; seismic networks; seismic waves; teleseismic signals; United States; upper mantle; velocity structure DO - http://dx.doi.org/10.1029/96JB00109 ER - TY - JOUR T1 - Contact discontinuities in collisionless plasmas: A comparison of hybrid and kinetic simulations AN - 1531014857; 19556532 AB - A comparison of full kinetic and hybrid simulations for T sub(e)/T sub(i)> 1, where T sub(e)(T sub(i)) is the electron (ion) temperature, indicates that contact discontinuities cannot persist in collisionless plasmas. A simple analysis suggests that the potential barrier to ion mass and thermal transport identified by Wu et al. [1994] in their hybrid calculations can preserve the contact discontinuity if the contributions of electron thermal transport are small. When T sub(e)/T sub(i)> 1, electron energy transport in kinetic calculations results in large potentials which reduce the effectiveness of the potential barrier. Thus, contact discontinuities are unlikely to be observed in spacecraft observations. JF - Geophysical Research Letters AU - Lapenta, G AU - Brackbill, JU AD - Theoretical Division, MS B216, Los Alamos National Laboratory, Los Alamos, NM 87545. Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 1713 EP - 1716 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 23 IS - 14 SN - 0094-8276, 0094-8276 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Titanium KW - Collisionless plasmas KW - Transport KW - Discontinuity KW - Contact KW - Simulation KW - Potential barriers KW - Mathematical analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1531014857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Contact+discontinuities+in+collisionless+plasmas%3A+A+comparison+of+hybrid+and+kinetic+simulations&rft.au=Lapenta%2C+G%3BBrackbill%2C+JU&rft.aulast=Lapenta&rft.aufirst=G&rft.date=1996-07-01&rft.volume=23&rft.issue=14&rft.spage=1713&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F96GL01845 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-06-01 N1 - Last updated - 2017-01-05 DO - http://dx.doi.org/10.1029/96GL01845 ER - TY - JOUR T1 - Two cross-linguistic factors underlying tongue shapes for vowels. AN - 85159951; pmid-8655802 AB - Desirable characteristics of a vocal-tract parametrization include accuracy, low dimensionality, and generalizability across speakers and languages. A low-dimensional, speaker-independent linear parametrization of vowel tongue shapes can be obtained using the PARAFAC three-mode factor analysis procedure [Harshman et al., J. Acoust. Soc. Am. 62, 693-707 (1977)]. Harshman et al. applied PARAFAC to midsagittal x-ray vowel data from five English speakers, reporting that two speaker-independent factors are required to accurately represent the tongue shape measured along anatomically normalized vocal-tract diameter grid lines. Subsequently, the cross-linguistic generality of this parametrization was brought into question by the application of PARAFAC to Icelandic vowel data, where three nonorthogonal factors were reported [Jackson, J. Acoust. Soc. Am. 84, 124-143 (1988)]. This solution is shown to be degenerate; a reanalysis of Jackson's Icelandic data produces two factors that match Harshman et al.'s factors for English vowels, contradicting Jackson's distinction between English and Icelandic language-specific "articulatory primes". To obtain vowel factors not constrained by artificial measurement grid lines, x-ray tongue shape traces of six English speakers were marked with 13 equally spaced points. PARAFAC analysis of this unconstrained (x,y) coordinate data results in two factors that are clearly interpretable in terms of the traditional vowel quality dimensions front/back, high/low. JF - The Journal of the Acoustical Society of America AU - Nix, D A AU - Papcun, G AU - Hogden, J AU - Zlokarnik, I AD - Computer Research and Applications Speech Project, Los Alamos National Laboratory, New Mexico 87545, USA. PY - 1996 SP - 3707 EP - 3717 VL - 99 IS - 6 SN - 0001-4966, 0001-4966 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85159951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+the+Acoustical+Society+of+America&rft.atitle=Two+cross-linguistic+factors+underlying+tongue+shapes+for+vowels.&rft.au=Nix%2C+D+A%3BPapcun%2C+G%3BHogden%2C+J%3BZlokarnik%2C+I&rft.aulast=Nix&rft.aufirst=D&rft.date=1996-06-01&rft.volume=99&rft.issue=6&rft.spage=3707&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+the+Acoustical+Society+of+America&rft.issn=00014966&rft_id=info:doi/ LA - English DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Lacustrine chronology links late Pleistocene climate change and mass movements in northern New Mexico AN - 52841404; 1996-042466 AB - Well-dated lacustrine deposits in northern White Rock Canyon, New Mexico, record damming of the Rio Grande by at least four separate failures of a slump complex between about 17.5 and 12.4 ka ( (super 14) C), linking mass movements to a period of rapid climate change in the western United States. Failure of metastable slumps probably resulted from removal of lateral support during downcutting and erosion by the Rio Grande and from a decrease in resisting forces due to increased pore pressures. Our chronology suggests that the lake that formed between 17.5 and 15.0 ka may record effects of both glacial melt and pluvial activity (mainly enhanced rainfall); the youngest lake ( approximately 12.4 ka) may record pluvial runoff; and the intermediate lakes (13.7 to 13.1 ka) may record pluvial and minor melt-water activity. We have not found lacustrine deposits younger than about 12.4 ka. The record of geomorphic response along the Rio Grande suggests that late Pleistocene climatic changes may have triggered similar mass movements elsewhere in the Southwest. JF - Geology (Boulder) AU - Dethier, David P AU - Reneau, Steven L Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 539 EP - 542 PB - Geological Society of America (GSA), Boulder, CO VL - 24 IS - 6 SN - 0091-7613, 0091-7613 KW - United States KW - White Rock Canyon KW - isotopes KW - erosion KW - New Mexico KW - Los Alamos County New Mexico KW - paleoclimatology KW - upper Pleistocene KW - Cenozoic KW - radioactive isotopes KW - geochronology KW - dates KW - carbon KW - mass movements KW - sediments KW - absolute age KW - Santa Fe County New Mexico KW - Rio Grande KW - Quaternary KW - colluvium KW - clastic sediments KW - paleohydrology KW - northern New Mexico KW - water erosion KW - paleogeography KW - slumping KW - extinct lakes KW - lacustrine environment KW - Pleistocene KW - C-14 KW - field studies KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52841404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=Lacustrine+chronology+links+late+Pleistocene+climate+change+and+mass+movements+in+northern+New+Mexico&rft.au=Dethier%2C+David+P%3BReneau%2C+Steven+L&rft.aulast=Dethier&rft.aufirst=David&rft.date=1996-06-01&rft.volume=24&rft.issue=6&rft.spage=539&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281996%290242.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 27 N1 - PubXState - CO N1 - Document feature - illus. incl. sects., sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - absolute age; C-14; carbon; Cenozoic; clastic sediments; colluvium; dates; erosion; extinct lakes; field studies; geochronology; isotopes; lacustrine environment; Los Alamos County New Mexico; mass movements; New Mexico; northern New Mexico; paleoclimatology; paleogeography; paleohydrology; Pleistocene; Quaternary; radioactive isotopes; Rio Grande; Santa Fe County New Mexico; sediments; slumping; United States; upper Pleistocene; water erosion; White Rock Canyon DO - http://dx.doi.org/10.1130/0091-7613(1996)024<0539:LCLLPC>2.3.CO;2 ER - TY - JOUR T1 - The generation of mid-ocean ridge basalts from the Hf and Nd isotope perspective AN - 52829410; 1996-054630 AB - This paper presents new Hf and Nd isotope and trace element data for mid-ocean ridge basalts. The intention of this study was to investigate whether melt parameters derived from the isotopic systematics of MORB (delta (sub (Lu/Hf)) and delta (sub (Sm/Nd)) ) support the variations in depth and degree of melting as inferred from the major elements and ridge depth; that is, the "local" and "global" trend [1]. Variation on a "local" scale is defined as variation within a ridge segment, while the "global" scale variation is defined as variation between ridge segments. Both on a "local" and a "global" scale, delta (sub (Lu/Hf)) and delta (sub (Sm/Nd)) show consistent variations with the major element melt parameters, Na (sub 8) and Fe (sub 8) . In addition, the delta melt parameters vary consistently with ridge depth. Basalts from some of the deepest ridges, Australian-Antarctic Discordance and Mid-Cayman Rise, show evidence that a relatively large proportion of the basalt was generated in the presence of garnet. A melting model is derived using best available estimates for a large number of parameters that influence the chemistry of MORBs. With this melting model, the additional constraints of delta (sub (Lu/Hf)) and delta (sub (Sm/Nd)) further define the melting regime beneath the ocean ridges. The onset of melting for shallow ridges, like Kolbeinsey Ridge, starts deeper than for deep ridges, the aggregated melts from the Kolbeinsey Ridge sample a columnar shaped melting regime. Basalts from deep ridges represent a smaller degree of melting, which was generated in a triangular-shaped melting regime. The translation of delta (sub (Lu/Hf)) and delta (sub (Sm/Nd)) in absolute values for degree and depth of melting for individual ridge segments is hampered by uncertainties in the details of the heterogeneity of the MORB reservoir. JF - Earth and Planetary Science Letters AU - Salters, Vincent J M Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 109 EP - 123 PB - Elsevier, Amsterdam VL - 141 IS - 1-4 SN - 0012-821X, 0012-821X KW - Hf-177/Hf-176 KW - volcanic rocks KW - isotopes KW - isotope ratios KW - igneous rocks KW - partial melting KW - stable isotopes KW - Nd-144/Nd-143 KW - melting KW - hafnium KW - metals KW - magmas KW - mid-ocean ridge basalts KW - basalts KW - rare earths KW - neodymium KW - fractionation KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52829410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=The+generation+of+mid-ocean+ridge+basalts+from+the+Hf+and+Nd+isotope+perspective&rft.au=Salters%2C+Vincent+J+M&rft.aulast=Salters&rft.aufirst=Vincent+J&rft.date=1996-06-01&rft.volume=141&rft.issue=1-4&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2F0012-821X%2896%2900070-2 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1996-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - basalts; fractionation; hafnium; Hf-177/Hf-176; igneous rocks; isotope ratios; isotopes; magmas; melting; metals; mid-ocean ridge basalts; Nd-144/Nd-143; neodymium; partial melting; rare earths; stable isotopes; volcanic rocks DO - http://dx.doi.org/10.1016/0012-821X(96)00070-2 ER - TY - JOUR T1 - Neptunium(V) hydrolysis and carbonate complexation; experimental and predicted neptunyl solubility in concentrated NaCl using the Pitzer approach AN - 52808676; 1996-072940 AB - A Pitzer model is developed for the calculation of actinide solubilities over a wide range of NaCl and NaClO (sub 4) electrolyte concentrations. The solid phases NaNpO (sub 2) CO (sub 3n) H (sub 2) O at [CO (super 2-) (sub 3 ) ] 10 (super -3) M and Na (sub 3) NpO (sub 2) (CO (sub 3) ) (sub 2n) H (sub 2) O at [CO (super 2-) (sub 3 ) ] >> 10 (super -3) are solubility-limiting solid equilibrium phases. Pure Np(V) carbonato complexes were formed in solution, with stabilization due to the interaction with chloride ions. The activity of water changes with electrolyte concentration. NaNpO (sub 2) CO (sub 2n) H (sub 2) O and NaAmO (sub 2) CO (sub 3n) H (sub 2) O showed the same solubility in 3 and 5 M NaCl. The model is used to predict the Np(V) concentration in brines from the Waste Isolation Plant, in the USA. JF - Geochimica et Cosmochimica Acta AU - Runde, W AU - Neu, M P AU - Clark, D L Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 2065 EP - 2073 PB - Pergamon, Oxford VL - 60 IS - 12 SN - 0016-7037, 0016-7037 KW - sodium chloride KW - neptunium KW - complexing KW - waste disposal sites KW - hydrolysis KW - solubility KW - equilibrium KW - radioactive waste KW - neptunyl solubility KW - metals KW - Pitzer approach KW - waste disposal KW - geochemistry KW - carbonates KW - actinides KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52808676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Neptunium%28V%29+hydrolysis+and+carbonate+complexation%3B+experimental+and+predicted+neptunyl+solubility+in+concentrated+NaCl+using+the+Pitzer+approach&rft.au=Runde%2C+W%3BNeu%2C+M+P%3BClark%2C+D+L&rft.aulast=Runde&rft.aufirst=W&rft.date=1996-06-01&rft.volume=60&rft.issue=12&rft.spage=2065&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2896%2900081-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1996-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; carbonates; complexing; equilibrium; geochemistry; hydrolysis; metals; neptunium; neptunyl solubility; Pitzer approach; radioactive waste; sodium chloride; solubility; waste disposal; waste disposal sites DO - http://dx.doi.org/10.1016/0016-7037(96)00081-6 ER - TY - JOUR T1 - Is magnetic reconnection intrinsically transient or steady-state? The Earth's magnetopause as a laboratory AN - 52770257; 1997-003788 JF - Eos, Transactions, American Geophysical Union AU - Onsager, T G AU - Elphic, R C Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 241 EP - 250 PB - American Geophysical Union, Washington, DC VL - 77 IS - 26 SN - 0096-3941, 0096-3941 KW - transient phenomena KW - steady-state processes KW - magnetosphere KW - magnetization KW - magnetopause KW - magnetic field KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52770257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Is+magnetic+reconnection+intrinsically+transient+or+steady-state%3F+The+Earth%27s+magnetopause+as+a+laboratory&rft.au=Onsager%2C+T+G%3BElphic%2C+R+C&rft.aulast=Onsager&rft.aufirst=T&rft.date=1996-06-01&rft.volume=77&rft.issue=26&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - magnetic field; magnetization; magnetopause; magnetosphere; steady-state processes; transient phenomena ER - TY - JOUR T1 - Joint structures determined by clustering microearthquakes using waveform amplitude ratios AN - 52749751; 1997-021928 JF - International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts AU - Roff, A AU - Phillips, W S AU - Brown, D W Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 627 EP - 639 PB - Pergamon, Oxford-New York VL - 33 IS - 6 SN - 0148-9062, 0148-9062 KW - United States KW - P-waves KW - Sandoval County New Mexico KW - joints KW - elastic waves KW - waveforms KW - New Mexico KW - hot dry rocks KW - cluster analysis KW - fractures KW - Valles Caldera KW - focus KW - seismograms KW - hydraulic fracturing KW - body waves KW - focal mechanism KW - pressure KW - stress KW - statistical analysis KW - high pressure KW - Fenton Hill KW - seismic waves KW - microearthquakes KW - earthquakes KW - S-waves KW - amplitude KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52749751?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.atitle=Joint+structures+determined+by+clustering+microearthquakes+using+waveform+amplitude+ratios&rft.au=Roff%2C+A%3BPhillips%2C+W+S%3BBrown%2C+D+W&rft.aulast=Roff&rft.aufirst=A&rft.date=1996-06-01&rft.volume=33&rft.issue=6&rft.spage=627&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.issn=01489062&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 14 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - amplitude; body waves; cluster analysis; earthquakes; elastic waves; Fenton Hill; focal mechanism; focus; fractures; high pressure; hot dry rocks; hydraulic fracturing; joints; microearthquakes; New Mexico; P-waves; pressure; S-waves; Sandoval County New Mexico; seismic waves; seismograms; statistical analysis; stress; United States; Valles Caldera; waveforms ER - TY - JOUR T1 - Progress report on colloid-facilitated transport at Yucca Mountain; Yucca Mountain site characterization program milestone 3383 AN - 52649271; 1998-003360 AB - To assess colloid-facilitated radionuclide transport in groundwaters at the potential nuclear waste repository at Yucca Mountain, it is very important to understand the generation and stability of colloids, including naturally occurring colloids. To this end, we measured the colloid concentration in waters from Well J-13, which is on the order of 106 particles per milliliter (for particle sizes larger than 100 manometers). At this low particle loading, the sorption of radionuclides to colloids would have to be extremely high before the colloids could carry a significant amount of radionuclides from the repository to the accessible environment. We also performed aggregation experiments to evaluate the stability of silica (particle diameter: 85 nm) and clay colloids (particle diameter: 140 nm) as a function of ionic strength in a carbonate-rich synthetic groundwater. When the concentration of electrolyte is increased to induce aggregation, the aggregation is irreversible and the rate of aggregation increases with increasing electrolyte strength. We used autocorrelation photon spectroscopy to estimate the rate of particle aggregation for both types of colloids. By relating the measured aggregation rate to the Smoluchowski rate expression, we determined the stability ratio, W. Aggregation of silica particles and kaolinite clay particles decreased dramatically for an electrolyte concentration, C (sub NaCl) , below 300 mM and 200 mM, respectively. JF - LA - Los Alamos Scientific Laboratory AU - Triay, I R AU - Degueldre, C AU - Wistrom, A O AU - Cotter, C R AU - Lemons, W W Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 23 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - hydrology KW - high-level waste KW - colloidal materials KW - underground storage KW - isotopes KW - site exploration KW - Nye County Nevada KW - radioactive waste KW - ground water KW - radioactive isotopes KW - underground installations KW - waste disposal KW - Yucca Mountain KW - Nevada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52649271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Triay%2C+I+R%3BDegueldre%2C+C%3BWistrom%2C+A+O%3BCotter%2C+C+R%3BLemons%2C+W+W&rft.aulast=Triay&rft.aufirst=I&rft.date=1996-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Progress+report+on+colloid-facilitated+transport+at+Yucca+Mountain%3B+Yucca+Mountain+site+characterization+program+milestone+3383&rft.title=Progress+report+on+colloid-facilitated+transport+at+Yucca+Mountain%3B+Yucca+Mountain+site+characterization+program+milestone+3383&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96012176NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - colloidal materials; ground water; high-level waste; hydrology; isotopes; Nevada; Nye County Nevada; radioactive isotopes; radioactive waste; site exploration; underground installations; underground storage; United States; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Manifestation of nonlinear elasticity in rock; convincing evidence over large frequency and strain intervals from laboratory studies AN - 52484421; 1999-029936 AB - Nonlinear elastic response in rock is established as a robust and representative characteristic rock rather than a curiosity. We show measurements of this behaviour from a variety of experiments on rock taken over many orders of magnitude in strain and frequency. The evidence leads to a pattern of unifying behaviour in rock: (1) Nonlinear response in rock is ubiquitous. (2) The response takes place over a large frequency interval (dc to 10 (super 5 ) kHz at least). (3) The response not only occurs, as is commonly appreciated, large strains but also at small strains where this behaviour and the manifestations of this behaviour are commonly disregarded. JF - Nonlinear Processes in Geophysics AU - Johnson, P A AU - Rasolofosaon, P N J Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 77 EP - 88 PB - European Geophysical Society, Katlenburg-Lindau VL - 3 IS - 2 SN - 1023-5809, 1023-5809 KW - elasticity KW - strain KW - Paleozoic KW - stress KW - Berea Sandstone KW - properties KW - frequency KW - elastic constants KW - harmonics KW - rock mechanics KW - laboratory studies KW - dynamics KW - shear modulus KW - Young's modulus KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52484421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nonlinear+Processes+in+Geophysics&rft.atitle=Manifestation+of+nonlinear+elasticity+in+rock%3B+convincing+evidence+over+large+frequency+and+strain+intervals+from+laboratory+studies&rft.au=Johnson%2C+P+A%3BRasolofosaon%2C+P+N+J&rft.aulast=Johnson&rft.aufirst=P&rft.date=1996-06-01&rft.volume=3&rft.issue=2&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Nonlinear+Processes+in+Geophysics&rft.issn=10235809&rft_id=info:doi/ L2 - http://www.nonlin-processes-geophys.net/3/77/1996/npg-3-77-1996.pdf http://www.nonlinear-processes-in-geophysics.net LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 1999-01-01 N1 - Number of references - 33 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Berea Sandstone; dynamics; elastic constants; elasticity; frequency; harmonics; laboratory studies; Paleozoic; properties; rock mechanics; shear modulus; strain; stress; Young's modulus ER - TY - JOUR T1 - Magnetoconvection and thermal coupling of the Earth's core and mantle AN - 51333632; 2007-127385 AB - Numerical calculations of finite amplitude magnetoconvection in a rotating spherical shell are used to investigate the thermal coupling of the Earth's core to the mantle. From the observed distribution of lower mantle seismic velocity heterogeneity we construct a pattern of heat flow on the core-mantle boundary consisting of a spherical average q (sub 0) plus heterogeneity with amplitude Delta q. For Delta q. corresponding to a homogeneous lower mantle, convection in the presence of a strong toroidal magnetic field consists of nearly axisymmetric magnetostrophic flow inside the inner-core tangent cylinder and a single large-scale spiraling columnar plume outside the tangent cylinder. Interaction of the columnar plume with the toroidal field induces patches of radial magnetic field distributed symmetrically with respect to the equator. For Delta q/q (sub 0) = 0, corresponding to a strongly heterogeneous lower mantle, stably stratified regions develop below warm mantle and enhanced convection develops below cold mantle. This modulation of the convection pattern breaks the columnar structure of core motions and destroys the equatorial symmetry of the induced magnetic field, without locking it to the mantle. Our results indicate that mantle structure is of secondary importance, compared with rotation, in controlling the structure of the geomagnetic field. JF - Philosophical Transactions - Royal Society. Mathematical, Physical and Engineering Sciences AU - Olson, Peter AU - Glatzmaier, Gary A AU - Jephcoat, Andrew P AU - Angel, R J AU - O'Nions, R K Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 1413 EP - 1424 PB - Royal Society of London, London VL - 354 IS - 1711 SN - 1364-503X, 1364-503X KW - magnetohydrodynamics KW - numerical models KW - three-dimensional models KW - data processing KW - mantle KW - coupling KW - mathematical models KW - effects KW - magnetoconvection KW - convection KW - core-mantle boundary KW - magnetic field KW - boundary conditions KW - flows KW - outer core KW - lower mantle KW - rotation KW - heat flow KW - digital simulation KW - core KW - heterogeneity KW - spherical models KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51333632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Philosophical+Transactions+-+Royal+Society.+Mathematical%2C+Physical+and+Engineering+Sciences&rft.atitle=Magnetoconvection+and+thermal+coupling+of+the+Earth%27s+core+and+mantle&rft.au=Olson%2C+Peter%3BGlatzmaier%2C+Gary+A%3BJephcoat%2C+Andrew+P%3BAngel%2C+R+J%3BO%27Nions%2C+R+K&rft.aulast=Olson&rft.aufirst=Peter&rft.date=1996-06-01&rft.volume=354&rft.issue=1711&rft.spage=1413&rft.isbn=&rft.btitle=&rft.title=Philosophical+Transactions+-+Royal+Society.+Mathematical%2C+Physical+and+Engineering+Sciences&rft.issn=1364503X&rft_id=info:doi/10.1098%2Frsta.1996.0055 LA - English DB - GeoRef N1 - Conference title - Royal Society of London discussion meeting on Developments in high-pressure, high-temperature research and the study of the Earth's deep interior N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PTRMAD N1 - SubjectsTermNotLitGenreText - boundary conditions; convection; core; core-mantle boundary; coupling; data processing; digital simulation; effects; flows; heat flow; heterogeneity; lower mantle; magnetic field; magnetoconvection; magnetohydrodynamics; mantle; mathematical models; numerical models; outer core; rotation; spherical models; three-dimensional models DO - http://dx.doi.org/10.1098/rsta.1996.0055 ER - TY - JOUR T1 - Synchronization of mammalian cells in S phase by sequential use of isoleucine-deprivation G1- or serum-withdrawal G0-arrest and aphidicolin block AN - 15829518; 4007682 AB - Procedures are described for synchronizing (1) rodent cells in G1 using the isoleucine-deprivation method, (2) normal diploid human and other kinds of fibroblasts in G0 using serum withdrawal, and (3) rodent and human cells in S phase using synchronized G0/G1 cells and aphidicolin. The effects of G0/G1-arrest and aphidicolin block on cyclins/cyclin dependent kinases and on the composition and structure of chromatin are summarized. Implications of these effects and the uses of the procedures are considered. JF - Methods in Cell Science AU - D'Anna, JA AU - Crissman, HA AU - Valdez, J G AU - Gurley, L R AU - Tobey, R A AD - Life Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1996/06// PY - 1996 DA - Jun 1996 SP - 115 EP - 126 VL - 18 IS - 2 SN - 1381-5741, 1381-5741 KW - G0 phase KW - G1 phase KW - S phase KW - aphidicolin KW - isoleucine KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - synchronization KW - serum KW - cell cycle KW - G 07210:Cell cycle KW - W 30965:Miscellaneous, Reviews KW - W3 33220:Cell culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15829518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Methods+in+Cell+Science&rft.atitle=Synchronization+of+mammalian+cells+in+S+phase+by+sequential+use+of+isoleucine-deprivation+G1-+or+serum-withdrawal+G0-arrest+and+aphidicolin+block&rft.au=D%27Anna%2C+JA%3BCrissman%2C+HA%3BValdez%2C+J+G%3BGurley%2C+L+R%3BTobey%2C+R+A&rft.aulast=D%27Anna&rft.aufirst=JA&rft.date=1996-06-01&rft.volume=18&rft.issue=2&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Methods+in+Cell+Science&rft.issn=13815741&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - synchronization; serum; cell cycle ER - TY - JOUR T1 - Reversible synchronization of cultured rodent and human diploid fibroblast cells in G sub(2) phase AN - 15824282; 4007676 AB - This paper describes a three-step procedure for induction of reversible cell synchrony in the G sub(2) phase of the cell cycle of Chinese hamster ovary (line CHO) cells and non-transformed, human skin fibroblast (HSF) cells. The CHO cells are presynchronized in early S phase by isoleucine deficiency and hydroxyurea blockades. The culture is transferred to medium supplemented with the DNA topoisomerase II inhibitor, Hoechst 33342 for 12 hours after which 95% of the cells are arrested in G sub(2) phase. When G sub(2) synchronized cells are transferred to Hoechst-free, complete medium, they divide as a highly synchronous cohort within 3 hours. The HSF cells are initially cultured in low serum to arrest them in G sub(0) and then transferred to complete medium containing aphidicolin to arrest them in early S phase. The culture is then transferred to aphidicolinfree, complete medium with Hoechst 33342 (0.1 mu g/ml) for 10 hours after which up to 85% of the cells arrest in G sub(2) phase. Synchronous cell division occurs 3.5 hours after transfer of cells to complete, drug-free medium. The synchrony techniques are useful for studying G sub(2)/M biochemical events in mammalian cells. JF - Methods in Cell Science AU - Crissman, HA AU - Oishi, N AU - Tobey, R A AD - Life Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA Y1 - 1996/06// PY - 1996 DA - Jun 1996 SP - 179 EP - 186 VL - 18 IS - 2 SN - 1381-5741, 1381-5741 KW - G2 phase KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - cell culture KW - fibroblasts KW - synchronization KW - cell cycle KW - G 07210:Cell cycle KW - W 30965:Miscellaneous, Reviews KW - W3 33220:Cell culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15824282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Methods+in+Cell+Science&rft.atitle=Reversible+synchronization+of+cultured+rodent+and+human+diploid+fibroblast+cells+in+G+sub%282%29+phase&rft.au=Crissman%2C+HA%3BOishi%2C+N%3BTobey%2C+R+A&rft.aulast=Crissman&rft.aufirst=HA&rft.date=1996-06-01&rft.volume=18&rft.issue=2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Methods+in+Cell+Science&rft.issn=13815741&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - cell culture; fibroblasts; synchronization; cell cycle ER - TY - JOUR T1 - Three-dimensional cell culture induces novel proliferative and metabolic alterations associated with oncogenic transformation. AN - 78034221; 8635877 AB - To date, cell biological characteristics of oncogene-transfected cells have been investigated either in relatively homogeneous monolayer cultures or in heterogeneous tumors in vivo. To evaluate the emergence of cellular heterogeneity during tumor formation, we have established a multicellular spheroid system from an oncogene-dependent, genetically determined 2-stage carcinogenesis model for 3-dimensional growth under well-defined conditions. The effect of T24Ha-ras transfection on cellular growth, proliferation, cell viability and oxygenation was investigated using spontaneously immortalized (Rat1) and c-myc-transfected (M1) Fisher 344 rat embryo fibroblasts and a tumorigenic T24Ha-ras-transfected clone of each (Rat1-T1 and MR1). Spheroid volume growth curves and [3H]thymidine autoradiographs clearly demonstrated that spheroids better reflect the degree of tumorigenicity in vivo as opposed to monolayer cultures. Studies on Rat1 and M1 aggregates showed that the potential for tumor formation of Rat1 cells might be manifested in vitro as an increased capability of the cells to survive in 3D culture. pO2 measurements confirmed that neither cell quiescence nor cell death in the pseudo-normal cell aggregate types is due to an oxygen deficiency. In contrast, depletion of oxygen coincided with necrotic cell death in Rat1-T1 spheroids and proliferation arrest in MR1 cultures. Cell-line-specific attributes in 3D culture that were not specifically related to ras transfection of the cells included histological structure, development of necrosis and thickness of viable cell rim. However, growth behavior, proliferation characteristics and their association with the oxygen supply might be correlated with the extent of transformation. JF - International journal of cancer AU - Kunz-Schughart, L A AU - Groebe, K AU - Mueller-Klieser, W AD - Los Alamos National Laboratory, Life Sciences Division, NM 87545, USA. Y1 - 1996/05/16/ PY - 1996 DA - 1996 May 16 SP - 578 EP - 586 VL - 66 IS - 4 SN - 0020-7136, 0020-7136 KW - Index Medicus KW - Rats KW - Animals KW - Rats, Inbred F344 KW - Oxygen Consumption KW - Cell Aggregation KW - Cell Survival KW - Cell Division KW - Tumor Cells, Cultured -- metabolism KW - Cell Transformation, Neoplastic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78034221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+journal+of+cancer&rft.atitle=Three-dimensional+cell+culture+induces+novel+proliferative+and+metabolic+alterations+associated+with+oncogenic+transformation.&rft.au=Kunz-Schughart%2C+L+A%3BGroebe%2C+K%3BMueller-Klieser%2C+W&rft.aulast=Kunz-Schughart&rft.aufirst=L&rft.date=1996-05-16&rft.volume=66&rft.issue=4&rft.spage=578&rft.isbn=&rft.btitle=&rft.title=International+journal+of+cancer&rft.issn=00207136&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-07-10 N1 - Date created - 1996-07-10 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Radiobiology of ultrasoft X rays. V. Modification of cell inactivation by dimethyl sulfoxide. AN - 78015942; 8619021 AB - The effects of the radioprotector dimethyl sulfoxide (DMSO) were investigated for carbon-K (0.28 keV) and aluminum-K (1.47 keV) X rays compared with 60Co gamma rays for inactivation of mouse C3H 10T1/2 cells. The protection factor for 2 M DMSO was found to be 2.8 for both of the ultrasoft X-ray energies, which is not significantly different from the protection factor of 2.6 found for gamma rays. The results indicate that the proportion of scavengeable lethal damage from gamma and X rays does not depend on the proportion of the total energy that is deposited by low-energy electrons of relatively high ionization density. JF - Radiation research AU - Raju, M R AU - Schillaci, M E AU - Carpenter, S G AU - Goodhead, D T AU - Ward, J F AD - Los Alamos National Laboratory, New Mexico, 87545, USA. Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 563 EP - 567 VL - 145 IS - 5 SN - 0033-7587, 0033-7587 KW - Cobalt Radioisotopes KW - 0 KW - Radiation-Protective Agents KW - Dimethyl Sulfoxide KW - YOW8V9698H KW - Index Medicus KW - Space life sciences KW - Animals KW - X-Rays KW - Gamma Rays KW - Mice KW - Dose-Response Relationship, Radiation KW - Embryo, Mammalian KW - Cell Line KW - Dimethyl Sulfoxide -- pharmacology KW - Cell Survival -- drug effects KW - Radiation-Protective Agents -- pharmacology KW - Cell Survival -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78015942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Radiobiology+of+ultrasoft+X+rays.+V.+Modification+of+cell+inactivation+by+dimethyl+sulfoxide.&rft.au=Raju%2C+M+R%3BSchillaci%2C+M+E%3BCarpenter%2C+S+G%3BGoodhead%2C+D+T%3BWard%2C+J+F&rft.aulast=Raju&rft.aufirst=M&rft.date=1996-05-01&rft.volume=145&rft.issue=5&rft.spage=563&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-06-13 N1 - Date created - 1996-06-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - 32P and beta emitting radionuclides in microbiology and cell biology. AN - 78007854; 8690573 AB - Microbiology and cell biology researchers make extensive use of beta emitting nuclides. Because of the short half-lives or difficulty of direct measurement some researchers do not view radionuclide use with proper care and respect. Radionuclide use in microbiology and cell biology research is unique. Review of the isotopes and processes may be useful to the health physicist and research alike. JF - Health physics AU - Rees, B AD - Los Alamos National Laboratory, NM 87545, USA. Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 639 EP - 642 VL - 70 IS - 5 SN - 0017-9078, 0017-9078 KW - DNA Probes KW - 0 KW - Phosphorus Radioisotopes KW - Index Medicus KW - Radiation Dosage KW - Animals KW - Humans KW - Beta Particles KW - Phosphorus Radioisotopes -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78007854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=32P+and+beta+emitting+radionuclides+in+microbiology+and+cell+biology.&rft.au=Rees%2C+B&rft.aulast=Rees&rft.aufirst=B&rft.date=1996-05-01&rft.volume=70&rft.issue=5&rft.spage=639&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-08-23 N1 - Date created - 1996-08-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Mineralogy and temporal relations of coexisting authigenic minerals in altered silicic tuffs and their utility as potential low-temperature dateable minerals AN - 52828021; 1996-052035 AB - Coexisting fine-grained (0.1-20 mu m) authigenic silicate minerals separated from altered tuffs in Miocene and Plio-Pleistocene lacustrine deposits were characterized petrographically and using X-ray powder diffraction. The authigenic minerals are dominated by clinoptilolite, erionite, phillipsite, K-feldspar, silica, calcite, smectite, and randomly interstratified illite/smectite. Minor accessories of opal-CT, cristobalite, and barite are present with the major alteration minerals. Authigenic minerals from altered tuffs were dated using the K/Ar method to evaluate the utility of these minerals for determining the time of alteration in low-temperature diagenetic environments. The eruption ages of some of these zeolite-rich tuffs were determined using the (super 40) Ar/ (super 39) Ar method on single sanidine and plagioclase minerals. The K/Ar isotopic ages of the fine-grained K-feldspar show minimal variation compared with results from the clinoptilolite separates. The isotopic ages from the authigenic K-feldspar (15-13.8 Ma) and some of the zeolites (16.2-6.7 Ma) are similar to the eruption ages of the tuffs and indicate early alteration. Despite their open-framework structure, zeolites apparently can retain part or all of their radiogenic argon under favorable conditions (e.g., saturated environment). How much of the radiogenic argon is retained is estimated from the isotopic ages of other coexisting secondary minerals that are commonly dated by the K/Ar method. Although zeolite isotopic ages should be interpreted with caution, they may be useful to constrain temporal relations of low-temperature diagenetic processes when used in conjunction with other dateable minerals. JF - Journal of Volcanology and Geothermal Research AU - WoldeGabriel, Giday AU - Broxton, David E AU - Byers, Frank M Jr Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 155 EP - 165 PB - Elsevier, Amsterdam VL - 71 IS - 2-4 SN - 0377-0273, 0377-0273 KW - United States KW - silicates KW - volcanic rocks KW - phillipsite KW - K-feldspar KW - silica minerals KW - isotopes KW - igneous rocks KW - Mud Hills KW - authigenic minerals KW - stable isotopes KW - temperature KW - Cenozoic KW - Ar-40/Ar-39 KW - radioactive isotopes KW - alkali feldspar KW - dates KW - noble gases KW - Barstow Formation KW - clinoptilolite KW - absolute age KW - zeolite group KW - framework silicates KW - tuff KW - mineral assemblages KW - Yucca Mountain KW - Nevada KW - isotope ratios KW - Nye County Nevada KW - Miocene KW - argon KW - pyroclastics KW - Tertiary KW - X-ray data KW - Neogene KW - cristobalite KW - low temperature KW - quartz KW - Pliocene KW - petrography KW - crystallization KW - analcime KW - feldspar group KW - SEM data KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52828021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Mineralogy+and+temporal+relations+of+coexisting+authigenic+minerals+in+altered+silicic+tuffs+and+their+utility+as+potential+low-temperature+dateable+minerals&rft.au=WoldeGabriel%2C+Giday%3BBroxton%2C+David+E%3BByers%2C+Frank+M+Jr&rft.aulast=WoldeGabriel&rft.aufirst=Giday&rft.date=1996-05-01&rft.volume=71&rft.issue=2-4&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2F0377-0273%2895%2900064-X L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1996-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - absolute age; alkali feldspar; analcime; Ar-40/Ar-39; argon; authigenic minerals; Barstow Formation; Cenozoic; clinoptilolite; cristobalite; crystallization; dates; feldspar group; framework silicates; igneous rocks; isotope ratios; isotopes; K-feldspar; low temperature; mineral assemblages; Miocene; Mud Hills; Neogene; Nevada; noble gases; Nye County Nevada; petrography; phillipsite; Pliocene; pyroclastics; quartz; radioactive isotopes; SEM data; silica minerals; silicates; stable isotopes; temperature; Tertiary; tuff; United States; volcanic rocks; X-ray data; Yucca Mountain; zeolite group DO - http://dx.doi.org/10.1016/0377-0273(95)00064-X ER - TY - JOUR T1 - The seismic structure of the Sun AN - 52827809; 1996-042646 JF - Science AU - Gough, D O AU - Kosovichev, A G AU - Toomre, J AU - Anderson, E AU - Antia, H M AU - Basu, S AU - Chaboyer, B AU - Chitre, S M AU - Christensen-Dalsgaard, J AU - Dziembowski, W A AU - Eff-Darwich, A AU - Elliott, J R AU - Giles, P M AU - Goode, P R AU - Guzik, J A AU - Harvey, J W AU - Hill, F AU - Leibacher, J W AU - Monteiro, M J P F G AU - Richard, O AU - Sekii, T AU - Shibahashi, H AU - Takata, M AU - Thompson, M J AU - Vauclair, S AU - Vorontsov, S V AU - Anonymous Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 1296 EP - 1300 PB - American Association for the Advancement of Science, Washington, DC VL - 272 IS - 5266 SN - 0036-8075, 0036-8075 KW - programs KW - solar interior KW - seismology KW - global KW - GONG KW - measurement KW - oscillations KW - observatories KW - Sun KW - helioseismology KW - Global Oscillation Network Group KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52827809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=The+seismic+structure+of+the+Sun&rft.au=Gough%2C+D+O%3BKosovichev%2C+A+G%3BToomre%2C+J%3BAnderson%2C+E%3BAntia%2C+H+M%3BBasu%2C+S%3BChaboyer%2C+B%3BChitre%2C+S+M%3BChristensen-Dalsgaard%2C+J%3BDziembowski%2C+W+A%3BEff-Darwich%2C+A%3BElliott%2C+J+R%3BGiles%2C+P+M%3BGoode%2C+P+R%3BGuzik%2C+J+A%3BHarvey%2C+J+W%3BHill%2C+F%3BLeibacher%2C+J+W%3BMonteiro%2C+M+J+P+F+G%3BRichard%2C+O%3BSekii%2C+T%3BShibahashi%2C+H%3BTakata%2C+M%3BThompson%2C+M+J%3BVauclair%2C+S%3BVorontsov%2C+S+V%3BAnonymous&rft.aulast=Gough&rft.aufirst=D&rft.date=1996-05-01&rft.volume=272&rft.issue=5266&rft.spage=1296&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - global; Global Oscillation Network Group; GONG; helioseismology; instruments; measurement; observatories; oscillations; programs; seismology; solar interior; Sun ER - TY - JOUR T1 - The current state of solar modeling AN - 52827774; 1996-042644 JF - Science AU - Christensen-Dalsgaard, J AU - Dappen, W AU - Ajukov, S V AU - Anderson, E R AU - Antia, H M AU - Basu, S AU - Baturin, V A AU - Berthomieu, G AU - Chaboyer, B AU - Chitre, S M AU - Cox, A N AU - Demarque, P AU - Donatowicz, J AU - Dziembowski, W A AU - Gabriel, M AU - Gough, D O AU - Guenther, D B AU - Guzik, J A AU - Harvey, J W AU - Hill, F AU - Houdek, G AU - Iglesias, C A AU - Kosovichev, A G AU - Leibacher, J W AU - Morel, P AU - Proffitt, C R AU - Provost, J AU - Reiter, J AU - Rhodes, E J, Jr AU - Rogers, F J AU - Roxburgh, I W AU - Thompson, M J AU - Ulrich, R K AU - Anonymous Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 1286 EP - 1292 PB - American Association for the Advancement of Science, Washington, DC VL - 272 IS - 5266 SN - 0036-8075, 0036-8075 KW - models KW - theoretical studies KW - solar interior KW - seismology KW - oscillations KW - Sun KW - helioseismology KW - GONG KW - Global Oscillation Network Group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52827774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=The+current+state+of+solar+modeling&rft.au=Christensen-Dalsgaard%2C+J%3BDappen%2C+W%3BAjukov%2C+S+V%3BAnderson%2C+E+R%3BAntia%2C+H+M%3BBasu%2C+S%3BBaturin%2C+V+A%3BBerthomieu%2C+G%3BChaboyer%2C+B%3BChitre%2C+S+M%3BCox%2C+A+N%3BDemarque%2C+P%3BDonatowicz%2C+J%3BDziembowski%2C+W+A%3BGabriel%2C+M%3BGough%2C+D+O%3BGuenther%2C+D+B%3BGuzik%2C+J+A%3BHarvey%2C+J+W%3BHill%2C+F%3BHoudek%2C+G%3BIglesias%2C+C+A%3BKosovichev%2C+A+G%3BLeibacher%2C+J+W%3BMorel%2C+P%3BProffitt%2C+C+R%3BProvost%2C+J%3BReiter%2C+J%3BRhodes%2C+E+J%2C+Jr%3BRogers%2C+F+J%3BRoxburgh%2C+I+W%3BThompson%2C+M+J%3BUlrich%2C+R+K%3BAnonymous&rft.aulast=Christensen-Dalsgaard&rft.aufirst=J&rft.date=1996-05-01&rft.volume=272&rft.issue=5266&rft.spage=1286&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 67 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Global Oscillation Network Group; GONG; helioseismology; models; oscillations; seismology; solar interior; Sun; theoretical studies ER - TY - JOUR T1 - Vesicle cylinders in vapor-differentiated basalt flows AN - 52826527; 1996-052036 AB - Vesicle cylinders are vertical pipes filled with bubbles and residual melt that differentiate from diktytaxitic basalt flows during crystallization. They grow from about 0.25 m above the base of the flow to the bottom of the chilled flow top. Field relations limit their growth to the period between cessation of lava movement and deep penetration of columnar joints. Basalts containing vesicle cylinders show positive correlations among increasing cylinder abundance, increasing lava porosity, and increasing groundmass crystal size. These features suggest unusually high water contents in the magma before eruption. Although both vesicle cylinders and host lava are "basaltic", the cylinders are enriched in elements not removed by the initial crystallization of the host: Fe, Mn, Ti, Na, K, P and many incompatible trace elements. The last residues to solidify within the cylinders consist of dacitic-rhyolitic glass, Fe-Ti oxides, anorthoclase, apatite+ or -fayalitePMaegerine. Geothermometry indicates that the cylinders began forming at approximately 1100-1075 degrees C but ceased crystallizing at approximately 950 degrees C. Pre-eruptive, high-temperature, iddingsite alteration of olivine phenocrysts in many lavas containing vesicle cylinders shows that the f (sub o) (sub 2) of the magmas was extremely high at eruption ( approximately 10 (super -4) ). After eruption, the f (sub o) (sub 2) of the lavas fell dramatically to values of about 10 (super -11) and conditions paralleled the FMQ buffer to final crystallization. Because the iddingsite forms before eruption, the magmas may become relatively oxidizing by addition of meteoric water late in their evolution. Oxygen-18 analyses of four basalt-differentiate pairs suggest that meteoric water addition has occurred in some of the magmas. Field relations and thermal profiles of cooling lava flows limit the growth period of vesicle cylinders to 1-5 days after flows of typical thickness (3-10 m) come to rest. Estimated viscosities of host lavas and frothy differentiate during cylinder growth are < or =10 (super 6) and approximately 10 (super 4) poise, respectively. Although an adequate quantitative model describing growth of vesicle cylinders does not exist, they apparently form by bubble nucleation and resulting density instability above the rising lower solidification front of the cooling flows. As the coalesced bubbles rise, residual melt and additional vapor migrate into the low-pressure, vertical discontinuity formed by the plume. JF - Journal of Volcanology and Geothermal Research AU - Goff, Fraser Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 167 EP - 185 PB - Elsevier, Amsterdam VL - 71 IS - 2-4 SN - 0377-0273, 0377-0273 KW - vesicular texture KW - United States KW - Washington KW - geologic thermometry KW - volcanic rocks KW - textures KW - igneous rocks KW - New Mexico KW - distribution KW - temperature KW - California KW - Oregon KW - viscosity KW - phase equilibria KW - lava KW - magmas KW - basalts KW - crystallization KW - Alaska KW - fractional crystallization KW - basalt flows KW - Nevada KW - high temperature KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52826527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Vesicle+cylinders+in+vapor-differentiated+basalt+flows&rft.au=Goff%2C+Fraser&rft.aulast=Goff&rft.aufirst=Fraser&rft.date=1996-05-01&rft.volume=71&rft.issue=2-4&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2F0377-0273%2895%2900073-9 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1996-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Alaska; basalt flows; basalts; California; crystallization; distribution; fractional crystallization; geologic thermometry; high temperature; igneous rocks; lava; magmas; Nevada; New Mexico; Oregon; phase equilibria; temperature; textures; United States; vesicular texture; viscosity; volcanic rocks; Washington DO - http://dx.doi.org/10.1016/0377-0273(95)00073-9 ER - TY - JOUR T1 - Silicic tephra in the middle Awash Valley, Ethiopia; implications for regional stratigraphic correlations AN - 52801141; 1996-075741 JF - Abstracts with Programs - Geological Society of America AU - WoldeGabriel, Giday AU - Heiken, Grant AU - Hart, William K AU - Renne, Paul AU - White, Tim AU - Vondra, Carl F Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 71 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 6 SN - 0016-7592, 0016-7592 KW - lithostratigraphy KW - volcanic rocks KW - igneous rocks KW - East Africa KW - Awash Valley KW - siliceous composition KW - correlation KW - pyroclastics KW - Ethiopia KW - Africa KW - tuff KW - volcanic ash KW - 12:Stratigraphy KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52801141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Silicic+tephra+in+the+middle+Awash+Valley%2C+Ethiopia%3B+implications+for+regional+stratigraphic+correlations&rft.au=WoldeGabriel%2C+Giday%3BHeiken%2C+Grant%3BHart%2C+William+K%3BRenne%2C+Paul%3BWhite%2C+Tim%3BVondra%2C+Carl+F&rft.aulast=WoldeGabriel&rft.aufirst=Giday&rft.date=1996-05-01&rft.volume=28&rft.issue=6&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 30th annual meeting of the Geological Society of America, North-Central Section N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Africa; Awash Valley; correlation; East Africa; Ethiopia; igneous rocks; lithostratigraphy; pyroclastics; siliceous composition; tuff; volcanic ash; volcanic rocks ER - TY - JOUR T1 - Early Wisconsin advance of the Cordilleran ice sheet recognized from loess deposits in the Channeled Scabland, Washington State AN - 52781471; 1996-081563 JF - Program and Abstracts - American Quaternary Association. Conference AU - McDonald, E V AU - Busacca, A J AU - Berger, G W AU - Anonymous Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 174 PB - American Quaternary Association, Seattle, WA VL - 14 SN - 0741-059X, 0741-059X KW - United States KW - Skamania County Washington KW - Washington KW - volcanic rocks KW - Quaternary KW - Mount Saint Helens KW - clastic sediments KW - igneous rocks KW - Wisconsinan KW - upper Pleistocene KW - Cenozoic KW - Cascade Range KW - pyroclastics KW - ice movement KW - chronology KW - lower Wisconsinan KW - sediments KW - volcanoes KW - Pleistocene KW - loess KW - Channeled Scabland KW - glacial geology KW - Cordilleran ice sheet KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52781471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+-+American+Quaternary+Association.+Conference&rft.atitle=Early+Wisconsin+advance+of+the+Cordilleran+ice+sheet+recognized+from+loess+deposits+in+the+Channeled+Scabland%2C+Washington+State&rft.au=McDonald%2C+E+V%3BBusacca%2C+A+J%3BBerger%2C+G+W%3BAnonymous&rft.aulast=McDonald&rft.aufirst=E&rft.date=1996-05-01&rft.volume=14&rft.issue=&rft.spage=174&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+American+Quaternary+Association.+Conference&rft.issn=0741059X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AMQUA 1996; 14th biennial meeting of the American Quaternary Association N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - WA N1 - Last updated - 2012-06-07 N1 - CODEN - AMQUAM N1 - SubjectsTermNotLitGenreText - Cascade Range; Cenozoic; Channeled Scabland; chronology; clastic sediments; Cordilleran ice sheet; glacial geology; ice movement; igneous rocks; loess; lower Wisconsinan; Mount Saint Helens; Pleistocene; pyroclastics; Quaternary; sediments; Skamania County Washington; United States; upper Pleistocene; volcanic rocks; volcanoes; Washington; Wisconsinan ER - TY - JOUR T1 - Natural background geochemistry, geomorphology, and pedogenesis of selected soil profiles and Bandelier Tuff, Los Alamos, New Mexico AN - 52653468; 1998-003082 AB - To determine the environmental impact of Los Alamos National Laboratory's activities on surface waters, groundwater, soils, sediments, and Bandelier Tuff requires thorough knowledge of the background-element chemistry for both geological and hydrological media. Background element concentrations in soils and the Bandelier Tuff are presented in this report. Statistical and geochemical comparisons of background samples and contaminated or nonbackground samples are needed to identify and evaluate environmental contamination. JF - LA - Los Alamos Scientific Laboratory AU - Longmire, P A AU - Reneau, S L AU - Watt, P M AU - McFadden, L D AU - Gardner, J N Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 186 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - volcanic rocks KW - igneous rocks KW - impact statements KW - New Mexico KW - Los Alamos County New Mexico KW - ground water KW - Cenozoic KW - Bandelier Tuff KW - sediments KW - tuff KW - geochemistry KW - pH KW - soils KW - concentration KW - pedogenesis KW - soil profiles KW - monitoring KW - Quaternary KW - pollutants KW - background level KW - surface water KW - pollution KW - migration of elements KW - pyroclastics KW - detection KW - Pleistocene KW - 25:Soils KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52653468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Longmire%2C+P+A%3BReneau%2C+S+L%3BWatt%2C+P+M%3BMcFadden%2C+L+D%3BGardner%2C+J+N&rft.aulast=Longmire&rft.aufirst=P&rft.date=1996-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Natural+background+geochemistry%2C+geomorphology%2C+and+pedogenesis+of+selected+soil+profiles+and+Bandelier+Tuff%2C+Los+Alamos%2C+New+Mexico&rft.title=Natural+background+geochemistry%2C+geomorphology%2C+and+pedogenesis+of+selected+soil+profiles+and+Bandelier+Tuff%2C+Los+Alamos%2C+New+Mexico&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96010649NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - background level; Bandelier Tuff; Cenozoic; concentration; detection; geochemistry; ground water; igneous rocks; impact statements; Los Alamos County New Mexico; migration of elements; monitoring; New Mexico; pedogenesis; pH; Pleistocene; pollutants; pollution; pyroclastics; Quaternary; sediments; soil profiles; soils; surface water; tuff; United States; volcanic rocks ER - TY - JOUR T1 - Resonance and elastic nonlinear phenomena in rock AN - 50168438; 1997-077698 AB - In a great variety of laboratory experiments over large intervals in stress, strain, and frequency, rocks display pronounced nonlinear elastic behavior. Here we describe nonlinear response in rock from resonance experiments. Two important features of nonlinear resonant behavior are a shift in resonant frequency away from the linear resonant frequency as the amplitude of the disturbance is increased and the harmonics in the time signal that accompany this shift. We have conducted Young's mode resonance experiments using bars of a variety of rock types (limestone, sandstone, marble, chalk) and of varying diameters and lengths. Typically, samples with resonant frequencies of approximately 0.5-1.5 kHz display resonant frequency shifts of 10% or more, over strain intervals of 10 (super -7) to 10 (super -6) and under a variety of saturation conditions and ambient pressure conditions. Correspondingly rich harmonic spectra measured from the time signal progressively develop with increasing drive level. In our experiments to date, the resonant peak is observed to always shift downward (if indeed the peak shifts), indicating a net softening of the modulus with drive level. This observation is in agreement with our pulse mode and static test observations, and those of other researchers. Resonant peak shift is not always observed, even at large drive levels; however, harmonics are always observed even in the absence of peak shift when detected strain levels exceed 10 (super -7) or so. This is an unexpected result. Important implications for the classical perturbation model approach to resonance results from this work. Observations imply that stress-strain hysteresis and discrete memory may play an important role in dynamic measurements and should be included in modeling. This work also illustrates that measurement of linear modulus and Q must be undertaken with great caution when using resonance. Copyright 1996 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Johnson, Paul A AU - Zinszner, Bernard AU - Rasolofosaon, Patrick N J Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 11 EP - 11,564 PB - American Geophysical Union, Washington, DC VL - 101 IS - B5 SN - 0148-0227, 0148-0227 KW - limestone KW - experimental studies KW - pressure KW - elastic properties KW - stress KW - sandstone KW - elastic constants KW - laboratory studies KW - chalk KW - resonance KW - sedimentary rocks KW - saturation KW - metamorphic rocks KW - marbles KW - carbonate rocks KW - clastic rocks KW - Young's modulus KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50168438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Resonance+and+elastic+nonlinear+phenomena+in+rock&rft.au=Johnson%2C+Paul+A%3BZinszner%2C+Bernard%3BRasolofosaon%2C+Patrick+N+J&rft.aulast=Johnson&rft.aufirst=Paul&rft.date=1996-05-01&rft.volume=101&rft.issue=B5&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F96JB00647 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbonate rocks; chalk; clastic rocks; elastic constants; elastic properties; experimental studies; laboratory studies; limestone; marbles; metamorphic rocks; pressure; resonance; sandstone; saturation; sedimentary rocks; stress; Young's modulus DO - http://dx.doi.org/10.1029/96JB00647 ER - TY - JOUR T1 - Essential amino acids for substrate binding and catalysis of human flap endonuclease 1. AN - 78000646; 8621570 AB - Human flap endonuclease 1 (FEN-1) is a member of the structure-specific endonuclease family and is involved in DNA repair. Eight restrictively conserved amino acids in FEN-1 have been converted individually to an alanine to elucidate their roles in specific DNA substrate binding and catalysis. Flap endonuclease activity of the wild type and mutant enzymes was measured by kinetic flow cytometry. Mutants D34A, D86A, and D181A lost their cleavage activity completely but retained substrate binding ability, as measured by their ability to inhibit the wild type enzyme in a competition assay. This indicates that these amino acids contribute to integrity of the enzyme active site. Loss of both binding and cleavage competency for the flap substrate by mutants E156A, G231A, and D233A suggests that these amino acids are involved in substrate binding. Mutants R103A and D179A retained wild type-like enzyme activity. JF - The Journal of biological chemistry AU - Shen, B AU - Nolan, J P AU - Sklar, L A AU - Park, M S AD - Life Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. Y1 - 1996/04/19/ PY - 1996 DA - 1996 Apr 19 SP - 9173 EP - 9176 VL - 271 IS - 16 SN - 0021-9258, 0021-9258 KW - Oligodeoxyribonucleotides KW - 0 KW - Recombinant Proteins KW - DNA Polymerase I KW - EC 2.7.7.- KW - Endodeoxyribonucleases KW - EC 3.1.- KW - Flap Endonucleases KW - FEN1 protein, human KW - EC 3.1.11.- KW - Index Medicus KW - Humans KW - Amino Acid Sequence KW - Escherichia coli -- enzymology KW - DNA Polymerase I -- chemistry KW - Binding Sites KW - Mutagenesis, Site-Directed KW - Base Sequence KW - Recombinant Proteins -- metabolism KW - Kinetics KW - Restriction Mapping KW - Molecular Sequence Data KW - Flow Cytometry KW - Recombinant Proteins -- chemistry KW - Sequence Homology, Amino Acid KW - Time Factors KW - Catalysis KW - Endodeoxyribonucleases -- chemistry KW - Endodeoxyribonucleases -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78000646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+biological+chemistry&rft.atitle=Essential+amino+acids+for+substrate+binding+and+catalysis+of+human+flap+endonuclease+1.&rft.au=Shen%2C+B%3BNolan%2C+J+P%3BSklar%2C+L+A%3BPark%2C+M+S&rft.aulast=Shen&rft.aufirst=B&rft.date=1996-04-19&rft.volume=271&rft.issue=16&rft.spage=9173&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-06-18 N1 - Date created - 1996-06-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Molecular analysis and comparison of radiation-induced large deletions of the HPRT locus in primary human skin fibroblasts. AN - 77969701; 8600509 AB - Genetic alterations in gamma-ray- and alpha-particle-induced HPRT mutants were examined by multiplex polymerase chain reaction (PCR) analysis. A total of 39-63% of gamma-ray-induced and 31-57% of alpha-particle-induced mutants had partial or total deletions of the HPRT gene. The proportion of these deletion events was dependent on radiation dose, and at the resolution limits employed there were no significant differences between the spectra induced by equitoxic doses of alpha particles (0.2-0.4 Gy) and gamma rays (3 Gy). The molecular nature of the deletions was analyzed by the use of sequence tagged site (STS) primers and PCR amplification as a "probe" for specific regions of the human X chromosome within the Xq26 region. These STSs were closely linked and spanned regions approximately 1.7 Mbp from the telomeric side and 1.7 Mbp from the centromeric side of the HPRT gene. These markers include: DXS53, 299R, DXS79, yH3L, 3/19, PR1, PR25, H2, yH3R, 1/44, 1/67, 1/1, DXS86, D8C6, DXS10 and DXS144. STS analyses indicated that the maximum size of total deletions in radiation-induced HPRT mutants can be greater than 2.7 Mbp and deletion size appears to be dependent on radiation dose. There were no apparent differences in the sizes of the deletions induced by alpha particles or gamma rays. On the other hand, deletions containing portions of the HPRT gene were observed to be 800 kbp or less, and the pattern of the partial deletion induced by alpha particles appeared to be different from that induced by gamma rays. JF - Radiation research AU - Yamada, Y AU - Park, M S AU - Okinaka, R T AU - Chen, D J AD - Life Sciences Division, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 481 EP - 490 VL - 145 IS - 4 SN - 0033-7587, 0033-7587 KW - DNA Primers KW - 0 KW - Hypoxanthine Phosphoribosyltransferase KW - EC 2.4.2.8 KW - Index Medicus KW - Space life sciences KW - NASA Discipline Radiation Health KW - Non-NASA Center KW - Base Sequence KW - Genes KW - Gamma Rays KW - Cells, Cultured KW - Humans KW - Molecular Sequence Data KW - Skin -- cytology KW - Sequence Tagged Sites KW - Alpha Particles KW - Sequence Deletion KW - Fibroblasts KW - DNA Primers -- chemistry KW - Mutagenesis -- radiation effects KW - Hypoxanthine Phosphoribosyltransferase -- genetics KW - DNA Damage -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77969701?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Molecular+analysis+and+comparison+of+radiation-induced+large+deletions+of+the+HPRT+locus+in+primary+human+skin+fibroblasts.&rft.au=Yamada%2C+Y%3BPark%2C+M+S%3BOkinaka%2C+R+T%3BChen%2C+D+J&rft.aulast=Yamada&rft.aufirst=Y&rft.date=1996-04-01&rft.volume=145&rft.issue=4&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-05-01 N1 - Date created - 1996-05-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Are Lg spectra from NTS explosions self-similar? AN - 52823130; 1996-056352 AB - Network-avenged L (sub g) spectra for 106 underground Nevada Test Site (NTS) nuclear explosions (recorded at the four broadband seismic stations operated by Lawrence Livermore National Laboratory) are shown to be approximately self-similar and to scale with cavity radius and scaled-cavity radius. Composite spectra produced by superimposing the spectra of individual tests of nearly identical yields conducted in a single geologic unit (e.g., Tunnel Beds tuff, Yucca Flat, below the water table) have amplitude variability of about a factor of 2. If a master spectrum is chosen that resembles the shape of a particular subgroup of nearly identical NTS explosions, the spectra of all other tests in the database can be superimposed on the master spectrum through the application of a shot-specific amplitude shift and a shot-specific frequency shift. The amplitude shift basically measures the difference between the low-frequency asymptotes of the individual spectrum and the master spectrum, and the frequency shift measures the difference in corner frequencies. We show that, for explosions producing cavities with a narrow range of measured scaled-cavity radii, the amplitude shifts scale with cavity volume. Further, if cavity volume scaling is applied to the amplitude shifts, the residuals are shown to depend on scaled-cavity radius or gas-filled porosity. The residuals (a measure of seismic coupling) appear to show slightly reduced scatter when plotted versus scaled-cavity radius as opposed to gas-filled porosity. The frequency shifts scale approximately as cavity radius to the 3/4 power. Although the NYS L (sub g) spectra are approximately self-similar, differences in high-frequency decay and other shape parameters exist. For example, the rate of high-frequency decay is observed to progressively decrease as explosions approach the static water level from above. These differences do not have a significant effect on the connections established between the amplitude and frequency shifts with cavity radius and other source parameters but do suggest source differences of potential interest in discrimination studies. JF - Bulletin of the Seismological Society of America AU - Jones, Eric M AU - Taylor, Steven R Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 445 EP - 456 PB - Seismological Society of America, Berkeley, CA VL - 86 IS - 2 SN - 0037-1106, 0037-1106 KW - United States KW - seismograms KW - guided waves KW - explosions KW - Lg-waves KW - data processing KW - spectral analysis KW - elastic waves KW - frequency KW - seismic sources KW - porosity KW - Nevada Test Site KW - surface waves KW - time factor KW - mathematical methods KW - data bases KW - Yucca Flat KW - seismic waves KW - seismic networks KW - nuclear explosions KW - Nevada KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52823130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Are+Lg+spectra+from+NTS+explosions+self-similar%3F&rft.au=Jones%2C+Eric+M%3BTaylor%2C+Steven+R&rft.aulast=Jones&rft.aufirst=Eric&rft.date=1996-04-01&rft.volume=86&rft.issue=2&rft.spage=445&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 21 N1 - PubXState - CA N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - amplitude; data bases; data processing; elastic waves; explosions; frequency; guided waves; Lg-waves; mathematical methods; Nevada; Nevada Test Site; nuclear explosions; porosity; seismic networks; seismic sources; seismic waves; seismograms; spectral analysis; surface waves; time factor; United States; Yucca Flat ER - TY - JOUR T1 - Distribution of CCRMP, NIST, and USGS reference material data in the literature (1950-1989) AN - 52759953; 1997-015525 JF - Geostandards Newsletter AU - Gladney, Ernest S AU - Roelandts, Iwan Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 45 EP - 55 PB - Association Nationale de la Recherche Technique, Paris VL - 20 IS - 1 SN - 0150-5505, 0150-5505 KW - survey organizations KW - CCRMP KW - publications KW - U. S. Geological Survey KW - standard materials KW - U. S. National Institute of Standards and Technology KW - government agencies KW - data processing KW - data bases KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52759953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geostandards+Newsletter&rft.atitle=Distribution+of+CCRMP%2C+NIST%2C+and+USGS+reference+material+data+in+the+literature+%281950-1989%29&rft.au=Gladney%2C+Ernest+S%3BRoelandts%2C+Iwan&rft.aulast=Gladney&rft.aufirst=Ernest&rft.date=1996-04-01&rft.volume=20&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Geostandards+Newsletter&rft.issn=01505505&rft_id=info:doi/10.1111%2Fj.1751-908X.1996.tb00170.x LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 32 N1 - Document feature - 6 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - CCRMP; data bases; data processing; geochemistry; government agencies; publications; standard materials; survey organizations; U. S. Geological Survey; U. S. National Institute of Standards and Technology DO - http://dx.doi.org/10.1111/j.1751-908X.1996.tb00170.x ER - TY - JOUR T1 - Micro-PIXE analysis of contact metamorphic minerals in the Ubehebe Peak contact aureole, Inyo County, California; evidence for fluid infiltration AN - 52599049; 1998-036155 JF - Eos, Transactions, American Geophysical Union AU - Roselle, G T AU - Baumgartner, L P AU - Hickmott, D D AU - Anonymous Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 285 PB - American Geophysical Union, Washington, DC VL - 77 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - silicates KW - olivine group KW - fluid phase KW - PIXE spectra KW - emission spectra KW - clinoamphibole KW - dolomite KW - California KW - contact metamorphism KW - Inyo County California KW - pyroxene group KW - clinopyroxene KW - metamorphic rocks KW - Death Valley KW - orthosilicates KW - oxides KW - spectra KW - mineral assemblages KW - diopside KW - trace elements KW - geochemistry KW - eastern California KW - tremolite KW - chain silicates KW - amphibole group KW - spinel KW - metamorphism KW - X-ray spectra KW - forsterite KW - calcite KW - nesosilicates KW - infiltration KW - aureoles KW - Ubehebe Peak KW - carbonates KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52599049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Micro-PIXE+analysis+of+contact+metamorphic+minerals+in+the+Ubehebe+Peak+contact+aureole%2C+Inyo+County%2C+California%3B+evidence+for+fluid+infiltration&rft.au=Roselle%2C+G+T%3BBaumgartner%2C+L+P%3BHickmott%2C+D+D%3BAnonymous&rft.aulast=Roselle&rft.aufirst=G&rft.date=1996-04-01&rft.volume=77&rft.issue=17%2C+Suppl.&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - amphibole group; aureoles; calcite; California; carbonates; chain silicates; clinoamphibole; clinopyroxene; contact metamorphism; Death Valley; diopside; dolomite; eastern California; emission spectra; fluid phase; forsterite; geochemistry; infiltration; Inyo County California; metamorphic rocks; metamorphism; mineral assemblages; nesosilicates; olivine group; orthosilicates; oxides; PIXE spectra; pyroxene group; silicates; spectra; spinel; trace elements; tremolite; Ubehebe Peak; United States; X-ray spectra ER - TY - JOUR T1 - Evaluating hysteresis in nonlinear pulse propagation experiments with rocks AN - 51956561; 2003-055215 JF - Eos, Transactions, American Geophysical Union AU - Kadish, Abraham AU - Anonymous Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 266 PB - American Geophysical Union, Washington, DC VL - 77 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - physical properties KW - experimental studies KW - hysteresis KW - elasticity KW - acoustical properties KW - strain KW - stress KW - propagation KW - spectra KW - rocks KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51956561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Evaluating+hysteresis+in+nonlinear+pulse+propagation+experiments+with+rocks&rft.au=Kadish%2C+Abraham%3BAnonymous&rft.aulast=Kadish&rft.aufirst=Abraham&rft.date=1996-04-01&rft.volume=77&rft.issue=17%2C+Suppl.&rft.spage=266&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical properties; elasticity; experimental studies; hysteresis; physical properties; propagation; rocks; spectra; strain; stress ER - TY - JOUR T1 - A new map of the geographic extent of the Socorro mid-crustal magma body AN - 51197061; 2001-023097 JF - Seismological Research Letters AU - Balch, R S AU - Sanford, A R AU - Hartse, H E AU - Hermann, Robert B Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 31 PB - Seismological Society of America, El Cerrito, CA VL - 67 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - seismograms KW - North America KW - geophysical surveys KW - cartography KW - Socorro County New Mexico KW - geophysical methods KW - reflection methods KW - New Mexico KW - Socorro New Mexico KW - seismic methods KW - Rio Grande Rift KW - magmas KW - velocity structure KW - surveys KW - microearthquakes KW - earthquakes KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51197061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=A+new+map+of+the+geographic+extent+of+the+Socorro+mid-crustal+magma+body&rft.au=Balch%2C+R+S%3BSanford%2C+A+R%3BHartse%2C+H+E%3BHermann%2C+Robert+B&rft.aulast=Balch&rft.aufirst=R&rft.date=1996-04-01&rft.volume=67&rft.issue=2&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 91st annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - cartography; crust; earthquakes; geophysical methods; geophysical surveys; magmas; microearthquakes; New Mexico; North America; reflection methods; Rio Grande Rift; seismic methods; seismograms; Socorro County New Mexico; Socorro New Mexico; surveys; United States; velocity structure ER - TY - JOUR T1 - Rectangular Schlumberger resistivity arrays for delineating vadose zone clay-lined fractures in shallow tuff AN - 50901383; 2002-027206 AB - Rectangular Schlumberger arrays can be used for 2-dimensional lateral profiling of apparent resistivity at a unique current electrode separation, hence single depth of penetration. Numerous apparent resistivity measurements are collected moving the potential electrodes (fixed MN spacing) within a rectangle of defined dimensions. The method provides a fast, cost-effective means for the collection of dense resistivity data to provide high-resolution information on subsurface hydeogeologic conditions. Several rectangular Schlumberger resistivity arrays were employed at Los Alamos National Laboratory (LANL) from 1989 through 1995 in an area adjacent to and downhill from an outfall pipe, septic tank, septic drainfield, and sump. Six rectangular arrays with 2 AB spacings were used to delineate lateral low resistivity anomalies that may be related to fractures that contain clay and/or vadose zone water. Duplicate arrays collected over a three year time period exhibited very good data repeatability. The properties of tritium make it an excellent groundwater tracer. Because tritium was present in discharged water from all of the anthropogenic sources in the vicinity it was used for this purpose. One major low resistivity anomaly correlates with relatively high tritium concentrations in the tuff. This was determined from borehole samples collected within and outside of the anomalous zone. The anomaly is interpreted to be due to fractures that contain clay from the soil profile. The clay was deposited in the fractures by aeolian processes and by surface water infiltration. The fractures likely served as a shallow vadose zone groundwater pathway. JF - Proceedings of SAGEEP AU - Miele, Martin AU - Laymon, Douglas E AU - Gilkeson, Robert AU - Michelotti, Roy AU - Bell, Ronald S AU - Cramer, Mark H Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 397 EP - 408 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1996 KW - United States KW - clay KW - volcanic rocks KW - isotopes KW - igneous rocks KW - dye tracers KW - unsaturated zone KW - tritium KW - New Mexico KW - Los Alamos County New Mexico KW - environmental analysis KW - ground water KW - fractures KW - shallow depth KW - radioactive isotopes KW - sediments KW - hydrodynamics KW - tuff KW - clastic sediments KW - geophysical methods KW - resistivity KW - Los Alamos National Laboratory KW - aquifers KW - Schlumberger methods KW - pyroclastics KW - hydrogen KW - shallow aquifers KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50901383?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+SAGEEP&rft.atitle=Rectangular+Schlumberger+resistivity+arrays+for+delineating+vadose+zone+clay-lined+fractures+in+shallow+tuff&rft.au=Miele%2C+Martin%3BLaymon%2C+Douglas+E%3BGilkeson%2C+Robert%3BMichelotti%2C+Roy%3BBell%2C+Ronald+S%3BCramer%2C+Mark+H&rft.aulast=Miele&rft.aufirst=Martin&rft.date=1996-04-01&rft.volume=1996&rft.issue=&rft.spage=397&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+SAGEEP&rft.issn=1554-8015&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Symposium on the Application of geophysics to engineering and environmental problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 6 N1 - PubXState - CO N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; clastic sediments; clay; dye tracers; environmental analysis; fractures; geophysical methods; ground water; hydrodynamics; hydrogen; igneous rocks; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; pyroclastics; radioactive isotopes; resistivity; Schlumberger methods; sediments; shallow aquifers; shallow depth; tritium; tuff; United States; unsaturated zone; volcanic rocks ER - TY - JOUR T1 - Melting conditions in the Hawaiian Plume; inferences from (super 230) Th/ (super 238) U, (super 226) Ra/ (super 230) Th and (super 231) Pa/ (super 235) U disequilibria AN - 50308603; 1998-036165 JF - Eos, Transactions, American Geophysical Union AU - Sims, Kenneth W W AU - Murrell, Michael AU - Goldstein, Steve AU - DePaolo, Donald J AU - Baldridge, Scott AU - Pickett, David AU - Anonymous Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 287 PB - American Geophysical Union, Washington, DC VL - 77 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Hawaii Island KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Haleakala KW - Th-230/Ra-226 KW - Mauna Loa KW - uranium disequilibrium KW - radioactive isotopes KW - melting KW - Hualalai KW - basalts KW - protactinium KW - Kilauea KW - geochemistry KW - mantle plumes KW - alkaline earth metals KW - U-235/Pa-231 KW - tholeiite KW - radium KW - Hawaii County Hawaii KW - isotope ratios KW - Hawaii KW - East Pacific Ocean Islands KW - U-238/Th-230 KW - Maui County Hawaii KW - Maui KW - Hawaiian Plume KW - lava KW - metals KW - magmas KW - Oceania KW - thorium KW - uranium KW - Polynesia KW - actinides KW - basanite KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50308603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Melting+conditions+in+the+Hawaiian+Plume%3B+inferences+from+%28super+230%29+Th%2F+%28super+238%29+U%2C+%28super+226%29+Ra%2F+%28super+230%29+Th+and+%28super+231%29+Pa%2F+%28super+235%29+U+disequilibria&rft.au=Sims%2C+Kenneth+W+W%3BMurrell%2C+Michael%3BGoldstein%2C+Steve%3BDePaolo%2C+Donald+J%3BBaldridge%2C+Scott%3BPickett%2C+David%3BAnonymous&rft.aulast=Sims&rft.aufirst=Kenneth+W&rft.date=1996-04-01&rft.volume=77&rft.issue=17%2C+Suppl.&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1996 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; basalts; basanite; East Pacific Ocean Islands; geochemistry; Haleakala; Hawaii; Hawaii County Hawaii; Hawaii Island; Hawaiian Plume; Hualalai; igneous rocks; isotope ratios; isotopes; Kilauea; lava; magmas; mantle plumes; Maui; Maui County Hawaii; Mauna Loa; melting; metals; Oceania; Polynesia; protactinium; radioactive isotopes; radium; Th-230/Ra-226; tholeiite; thorium; U-235/Pa-231; U-238/Th-230; United States; uranium; uranium disequilibrium; volcanic rocks ER - TY - JOUR T1 - Age and character of basaltic rocks of the Yucca Mountain region, southern Nevada AN - 50179279; 1996-048593 AB - Volcanism in the Yucca Mountain region of southern Nevada in the last 5 m.y. is restricted to moderate-to-small volumes of subalkaline basaltic magmas, produced during at least 6 intervals, and spanning an age range from 4.6 Ma to about 125 ka. Where paleomagnetic evidence is available, the period of volcanism at individual eruptive centers apparently was geologically short-lived, even where multiple eruptions involved different magma types. K-Ar studies are consistent with most other geochronologic information, such as the minimum ages of exposure-dating techniques, and show no evidence of renewed volcanism after a significant quiescence at any of the centers in the Yucca Mountain region. A volcanic recurrence interval of 860 + or - 350 kyr is computed from a large K-Ar data set and an evaluation of their uncertainties. Monte Carlo error propagations demonstrate the validity of uncertainties obtained for weighted-mean ages when modified using the goodness of fit parameter, MSWD. Elevated (super 87) Sr/ (super 86) Sr initial ratios (Sr (sub i ) ) in the basalts, nearly constant at 0.707, combined with low SiO (sub 2) and Rb/Sr ratios indicate a subcontinental, lithospheric mantle source, previously enriched in radiogenic Sr and depleted in Rb. Beginning with eruptions of the most voluminous eruptive center, the newly dated Pliocene Thirsty Mountain volcano, basaltic magmas have decreased in eruptive volume, plagioclase-phenocryst content, various trace element ratios, and TiO (sub 2) , while increasing in light rare earth elements, U, Th, P (sub 2) O (sub 5) , and light REE/heavy REE ratios. These time-correlated changes are consistent with either increasing depths of melting or a decreasing thermal gradient in the Yucca Mountain region during the last 5 m.y. Copyright 1996 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Fleck, R J AU - Turrin, B D AU - Sawyer, D A AU - Warren, R G AU - Champion, D E AU - Hudson, M R AU - Minor, S A Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 8205 EP - 8227 PB - American Geophysical Union, Washington, DC VL - 101 IS - B4 SN - 0148-0227, 0148-0227 KW - United States KW - Thirsty Mountain KW - volcanic rocks KW - isotopes KW - igneous rocks KW - stable isotopes KW - melts KW - Cenozoic KW - recurrence interval KW - dates KW - volcanism KW - basalts KW - absolute age KW - rare earths KW - trace elements KW - Yucca Mountain KW - geochemistry KW - Nevada KW - alkaline earth metals KW - Quaternary KW - isotope ratios KW - Nye County Nevada KW - depth KW - Sr-87/Sr-86 KW - Tertiary KW - K/Ar KW - titanium KW - metals KW - magmas KW - volcanoes KW - Pleistocene KW - strontium KW - 03:Geochronology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50179279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Age+and+character+of+basaltic+rocks+of+the+Yucca+Mountain+region%2C+southern+Nevada&rft.au=Fleck%2C+R+J%3BTurrin%2C+B+D%3BSawyer%2C+D+A%3BWarren%2C+R+G%3BChampion%2C+D+E%3BHudson%2C+M+R%3BMinor%2C+S+A&rft.aulast=Fleck&rft.aufirst=R&rft.date=1996-04-01&rft.volume=101&rft.issue=B4&rft.spage=8205&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F95JB03123 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 87 N1 - PubXState - DC N1 - Document feature - illus. incl. 6 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; alkaline earth metals; basalts; Cenozoic; dates; depth; geochemistry; igneous rocks; isotope ratios; isotopes; K/Ar; magmas; melts; metals; Nevada; Nye County Nevada; Pleistocene; Quaternary; rare earths; recurrence interval; Sr-87/Sr-86; stable isotopes; strontium; Tertiary; Thirsty Mountain; titanium; trace elements; United States; volcanic rocks; volcanism; volcanoes; Yucca Mountain DO - http://dx.doi.org/10.1029/95JB03123 ER - TY - JOUR T1 - CO-FISH reveals inversions associated with isochromosome formation. AN - 78095851; 8671729 AB - Despite the likely prevalence and documented biological impact of inverted DNA sequences in humans and other species, our ability to detect them on a routine basis is limited. The technique of chromosome orientation fluorescence in situ hybridization (CO-FISH) was used to detect obligate chromosome inversions associated with isochromosome formation in two human cell lines. Simultaneous hybridization of a strand-specific telomeric probe allowed us to deduce the absolute orientation of repetitive DNA sequences associated with the inverted region. These results show that, in principle, CO-FISH could be used to detect virtually any type of inversion, including those likely to escape detection by other methods. Prospective applications of the technique are discussed in relation to its principal limitation, the present availability of suitable single-stranded DNA probes. JF - Mutagenesis AU - Bailey, S M AU - Goodwin, E H AU - Meyne, J AU - Cornforth, M N AD - Life Sciences Division, Los Alamos National Laboratory, NM 87545, USA. Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 139 EP - 144 VL - 11 IS - 2 SN - 0267-8357, 0267-8357 KW - DNA Probes KW - 0 KW - DNA, Single-Stranded KW - Index Medicus KW - Chromosomes, Human, Pair 18 KW - Base Sequence KW - Humans KW - Molecular Sequence Data KW - DNA, Single-Stranded -- chemistry KW - Metaphase KW - Cell Line KW - Isochromosomes KW - In Situ Hybridization, Fluorescence -- methods KW - Chromosome Inversion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78095851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutagenesis&rft.atitle=CO-FISH+reveals+inversions+associated+with+isochromosome+formation.&rft.au=Bailey%2C+S+M%3BGoodwin%2C+E+H%3BMeyne%2C+J%3BCornforth%2C+M+N&rft.aulast=Bailey&rft.aufirst=S&rft.date=1996-03-01&rft.volume=11&rft.issue=2&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Mutagenesis&rft.issn=02678357&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-09-30 N1 - Date created - 1996-09-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Alpha-particle-induced sister chromatid exchange in normal human lung fibroblasts: evidence for an extranuclear target. AN - 78005852; 8927692 AB - We investigated the relationship between nuclear hits by alpha particles and the subsequent occurrence of sister chromatid exchanges (SCEs) in normal human diploid lung fibroblasts (HFL1). Cells were exposed to 238Pu alpha particles at doses ranging from 0.4-12.9 cGy and subsequently analyzed for SCEs. A significant increase in SCE frequency was observed even at the lowest dose examined. The extent of induction of SCEs in the HFL1 cells showed dose dependency in the very low dose range, i.e. 0.4-2.0 cGy. Thereafter, induction of SCEs was independent of dose. Based on measurements of the nuclear areas of the HFL1 cells in conjunction with target theory calculations, the lowest dose resulted in an approximately 8.6-fold increase in the percentage of cells showing excessive SCEs over the theoretically expected percentage of cells whose nuclei were calculated to be traversed by one or more alpha particles. The extent of the discrepancies between theoretically expected and experimentally observed frequencies of SCEs became progressively reduced with increasing radiation dose. We additionally determined that SCEs induced by the alpha particles have no significant dependency on the time of cell collection after exposure to a selected dose of alpha particles, thereby confirming that the differences between the theoretically predicted and observed SCE frequencies were not due to an artifact of the time of cell sampling for the SCE measurements. These results obtained with normal human cells are similar to those of other investigators who observed excessive SCEs in immortalized rodent cells beyond that which could be attributed exclusively to nuclear traversals by alpha particles. Such consistent findings point to the existence of an alternative, extranuclear target through which alpha particles cause DNA damage, as detected by SCE analysis. The existence of an extranuclear compartment as a target for alpha particles may have important implications for the susceptibility of lung cells to the DNA-damaging effects of alpha-particle exposure due to the inhalation of radon progeny. JF - Radiation research AU - Deshpande, A AU - Goodwin, E H AU - Bailey, S M AU - Marrone, B L AU - Lehnert, B E AD - Life Sciences Division, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 260 EP - 267 VL - 145 IS - 3 SN - 0033-7587, 0033-7587 KW - Plutonium KW - 53023GN24M KW - Index Medicus KW - Space life sciences KW - Lung KW - Cell Nucleus -- ultrastructure KW - Kinetics KW - Humans KW - Dose-Response Relationship, Radiation KW - Time Factors KW - Cell Nucleus -- radiation effects KW - Cell Line KW - Alpha Particles KW - Sister Chromatid Exchange -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78005852?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Alpha-particle-induced+sister+chromatid+exchange+in+normal+human+lung+fibroblasts%3A+evidence+for+an+extranuclear+target.&rft.au=Deshpande%2C+A%3BGoodwin%2C+E+H%3BBailey%2C+S+M%3BMarrone%2C+B+L%3BLehnert%2C+B+E&rft.aulast=Deshpande&rft.aufirst=A&rft.date=1996-03-01&rft.volume=145&rft.issue=3&rft.spage=260&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-11-14 N1 - Date created - 1996-11-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Assessment of personnel protective equipment use at two Department of Energy facilities. AN - 77989484; 8609034 AB - Research facilities under the jurisdiction of the United States Department of Energy are required to formally report significant radioactive contamination incidents to the Department of Energy under Department of Energy Order 5000.3. Through the reporting process, the Department of Energy is given a detailed incident description through a notification report, periodically apprised of subsequent facility response through update reports, and informed of the corrective actions that the facility will implement to prevent incident recurrence through a final report. For tracking and trending purposes, the notification, update, and final reports are entered into the Department of Energy Occurrence Reporting and Processing System database. This paper details an analysis that was performed on the radioactive contamination incident reports that were entered into the Department of Energy Occurrence Reporting and Processing System database by two similar research facilities at Los Alamos National Laboratory. The analysis focused on personnel protective equipment requirements at the two facilities to determine whether personal skin and clothing contamination incidents could be better avoided. JF - Health physics AU - Eichorst, A J AU - Clay, M E AD - Los Alamos National Laboratory, NM 87545, USA. Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 402 EP - 414 VL - 70 IS - 3 SN - 0017-9078, 0017-9078 KW - Index Medicus KW - Occupational Exposure KW - Health Physics KW - Radioactive Hazard Release -- statistics & numerical data KW - Humans KW - New Mexico KW - Radiation Monitoring KW - Nuclear Reactors KW - Radioactive Hazard Release -- prevention & control KW - Radiation Protection -- statistics & numerical data KW - Radiation Protection -- instrumentation KW - Radiation Protection -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77989484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Assessment+of+personnel+protective+equipment+use+at+two+Department+of+Energy+facilities.&rft.au=Eichorst%2C+A+J%3BClay%2C+M+E&rft.aulast=Eichorst&rft.aufirst=A&rft.date=1996-03-01&rft.volume=70&rft.issue=3&rft.spage=402&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-05-24 N1 - Date created - 1996-05-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Preliminary geochemical results phosphatic microspheres from the Frasnian-Famennian mass extinction boundary in Nevada and Utah AN - 52829047; 1996-046637 JF - Abstracts with Programs - Geological Society of America AU - McCarson, Brian L AU - Giles, Katherine A AU - McMillan, Nancy J AU - Goff, Fraser AU - Paterson, Colin J Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 33 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - Chordata KW - lower Famennian KW - Famennian KW - Paleozoic KW - analysis KW - upper Frasnian KW - Pisces KW - morphology KW - Devonian KW - microspheres KW - petrography KW - Utah KW - stratigraphic boundary KW - mass extinctions KW - Vertebrata KW - SEM data KW - Nevada KW - Frasnian KW - Upper Devonian KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52829047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Preliminary+geochemical+results+phosphatic+microspheres+from+the+Frasnian-Famennian+mass+extinction+boundary+in+Nevada+and+Utah&rft.au=McCarson%2C+Brian+L%3BGiles%2C+Katherine+A%3BMcMillan%2C+Nancy+J%3BGoff%2C+Fraser%3BPaterson%2C+Colin+J&rft.aulast=McCarson&rft.aufirst=Brian&rft.date=1996-03-01&rft.volume=28&rft.issue=4&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 48th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - analysis; Chordata; Devonian; Famennian; Frasnian; lower Famennian; mass extinctions; microspheres; morphology; Nevada; Paleozoic; petrography; Pisces; SEM data; stratigraphic boundary; United States; Upper Devonian; upper Frasnian; Utah; Vertebrata ER - TY - JOUR T1 - Gamma-ray spectroscopy for the investigation of the comet chemical composition on board CHAMPOLLION AN - 52821650; 1996-051123 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - d'Uston, C AU - Borrel, V AU - Boynton, W V AU - Brueckner, J AU - Klinger, J AU - Reedy, R C AU - Schmitt, B AU - Trombka, J I Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 327 EP - 328 PB - Lunar and Planetary Science Conference, Houston, TX VL - 27, Part 1 KW - landers KW - comets KW - Wirtanen Comet KW - gamma-ray spectra KW - cosmochemistry KW - spectra KW - CHAMPOLLION KW - instruments KW - comae KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52821650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Gamma-ray+spectroscopy+for+the+investigation+of+the+comet+chemical+composition+on+board+CHAMPOLLION&rft.au=d%27Uston%2C+C%3BBorrel%2C+V%3BBoynton%2C+W+V%3BBrueckner%2C+J%3BKlinger%2C+J%3BReedy%2C+R+C%3BSchmitt%2C+B%3BTrombka%2C+J+I&rft.aulast=d%27Uston&rft.aufirst=C&rft.date=1996-03-01&rft.volume=27%2C+Part+1&rft.issue=&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-seventh lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - CHAMPOLLION; comae; comets; cosmochemistry; gamma-ray spectra; instruments; landers; spectra; Wirtanen Comet ER - TY - JOUR T1 - Impact events and the erosion of planetary atmospheres; some surprising results from theory and simulation AN - 52821606; 1996-051438 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Newman, W I AU - Symbalisty, E M D AU - Jones, E M AU - Ahrens, T J Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 955 EP - 956 PB - Lunar and Planetary Science Conference, Houston, TX VL - 27, Part 2 KW - theoretical studies KW - experimental studies KW - shock waves KW - degradation KW - comets KW - planetology KW - atmosphere KW - impacts KW - simulation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52821606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Impact+events+and+the+erosion+of+planetary+atmospheres%3B+some+surprising+results+from+theory+and+simulation&rft.au=Newman%2C+W+I%3BSymbalisty%2C+E+M+D%3BJones%2C+E+M%3BAhrens%2C+T+J&rft.aulast=Newman&rft.aufirst=W&rft.date=1996-03-01&rft.volume=27%2C+Part+2&rft.issue=&rft.spage=955&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-seventh Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; comets; degradation; experimental studies; impacts; planetology; shock waves; simulation; theoretical studies ER - TY - JOUR T1 - Determination of approximately 2 Ma average flux and rigidity for energetic solar protons from lunar rock 61016 AN - 52821353; 1996-051157 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garrison, D H AU - Bogard, D D AU - Rao, M N AU - Reedy, R C Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 395 EP - 396 PB - Lunar and Planetary Science Conference, Houston, TX VL - 27, Part 1 KW - Ne-21 KW - lunar sample 61016 KW - concentration KW - Ne-22 KW - Moon KW - isotopes KW - isotope ratios KW - cosmogenic elements KW - cosmochemistry KW - Ne-22/Ne-21 KW - protons KW - Ar-38 KW - stable isotopes KW - argon KW - lunar samples KW - radioactive isotopes KW - noble gases KW - neon KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52821353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Determination+of+approximately+2+Ma+average+flux+and+rigidity+for+energetic+solar+protons+from+lunar+rock+61016&rft.au=Garrison%2C+D+H%3BBogard%2C+D+D%3BRao%2C+M+N%3BReedy%2C+R+C&rft.aulast=Garrison&rft.aufirst=D&rft.date=1996-03-01&rft.volume=27%2C+Part+1&rft.issue=&rft.spage=395&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-seventh lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Ar-38; argon; concentration; cosmochemistry; cosmogenic elements; isotope ratios; isotopes; lunar sample 61016; lunar samples; Moon; Ne-21; Ne-22; Ne-22/Ne-21; neon; noble gases; protons; radioactive isotopes; stable isotopes ER - TY - JOUR T1 - Short-lived cosmogenic radionuclide production in lunar rocks; improved estimates for the solar proton flux in recent solar cycles AN - 52818284; 1996-059038 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sisterson, J M AU - Schneider, R J, IV AU - Beverding, A AU - Gans, C S AU - Kim, K AU - Englert, P A J AU - Castaneda, C AU - Vincent, J AU - Reedy, R C Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 1207 EP - 1208 PB - Lunar and Planetary Science Conference, Houston, TX VL - 27, Part 3 KW - cobalt KW - Moon KW - isotopes KW - alkali metals KW - cosmogenic elements KW - cosmochemistry KW - sodium KW - protons KW - manganese KW - iron KW - Mn-54 KW - lunar samples KW - radioactive isotopes KW - metals KW - Na-22 KW - solar cycles KW - Fe-55 KW - Co-56 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52818284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Short-lived+cosmogenic+radionuclide+production+in+lunar+rocks%3B+improved+estimates+for+the+solar+proton+flux+in+recent+solar+cycles&rft.au=Sisterson%2C+J+M%3BSchneider%2C+R+J%2C+IV%3BBeverding%2C+A%3BGans%2C+C+S%3BKim%2C+K%3BEnglert%2C+P+A+J%3BCastaneda%2C+C%3BVincent%2C+J%3BReedy%2C+R+C&rft.aulast=Sisterson&rft.aufirst=J&rft.date=1996-03-01&rft.volume=27%2C+Part+3&rft.issue=&rft.spage=1207&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-seventh Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; Co-56; cobalt; cosmochemistry; cosmogenic elements; Fe-55; iron; isotopes; lunar samples; manganese; metals; Mn-54; Moon; Na-22; protons; radioactive isotopes; sodium; solar cycles ER - TY - JOUR T1 - Revised solar cosmic ray fluxes estimated using measured depth profiles of (super 14) C in lunar rocks; the importance of good (super 14) C cross section determinations AN - 52818060; 1996-059039 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sisterson, J M AU - Schneider, R J, IV AU - Jull, A J T AU - Donahue, D J AU - Cloudt, S AU - Kim, K AU - Beverding, A AU - Englert, P A J AU - Castaneda, C AU - Vincent, J AU - Reedy, R C Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 1209 EP - 1210 PB - Lunar and Planetary Science Conference, Houston, TX VL - 27, Part 3 KW - lunar samples KW - radioactive isotopes KW - Moon KW - isotopes KW - carbon KW - Sun KW - solar cycles KW - cosmochemistry KW - cosmic rays KW - C-14 KW - protons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52818060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Revised+solar+cosmic+ray+fluxes+estimated+using+measured+depth+profiles+of+%28super+14%29+C+in+lunar+rocks%3B+the+importance+of+good+%28super+14%29+C+cross+section+determinations&rft.au=Sisterson%2C+J+M%3BSchneider%2C+R+J%2C+IV%3BJull%2C+A+J+T%3BDonahue%2C+D+J%3BCloudt%2C+S%3BKim%2C+K%3BBeverding%2C+A%3BEnglert%2C+P+A+J%3BCastaneda%2C+C%3BVincent%2C+J%3BReedy%2C+R+C&rft.aulast=Sisterson&rft.aufirst=J&rft.date=1996-03-01&rft.volume=27%2C+Part+3&rft.issue=&rft.spage=1209&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-seventh Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - C-14; carbon; cosmic rays; cosmochemistry; isotopes; lunar samples; Moon; protons; radioactive isotopes; solar cycles; Sun ER - TY - JOUR T1 - Cosmogenic Kr and Xe made in the Moon from Br and I AN - 52811577; 1996-058967 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Reedy, R C AU - Masarik, J Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 1065 EP - 1066 PB - Lunar and Planetary Science Conference, Houston, TX VL - 27, Part 3 KW - Moon KW - isotopes KW - halogens KW - cosmogenic elements KW - cosmochemistry KW - bromine KW - xenon KW - krypton KW - stable isotopes KW - genesis KW - Xe-126 KW - iodine KW - noble gases KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52811577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Cosmogenic+Kr+and+Xe+made+in+the+Moon+from+Br+and+I&rft.au=Reedy%2C+R+C%3BMasarik%2C+J&rft.aulast=Reedy&rft.aufirst=R&rft.date=1996-03-01&rft.volume=27%2C+Part+3&rft.issue=&rft.spage=1065&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-seventh Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - bromine; cosmochemistry; cosmogenic elements; genesis; halogens; iodine; isotopes; krypton; Moon; noble gases; stable isotopes; Xe-126; xenon ER - TY - JOUR T1 - Isotopic signatures; an important tool in today's world AN - 52674601; 1997-062779 AB - High-sensitivity, high-accuracy actinide measurement techniques developed to support weapons diagnostic capabilities at the Los Alamos National Laboratory are now being used for environmental monitoring. The measurement techniques used are thermal ionization mass spectrometry, alpha spectrometry, and high resolution gamma spectrometry. These techniques are used to address a wide variety of actinide inventory issues; environmental surveillance, site characterizations, food chain member determination, sedimentary records of activities, and treaty compliance concerns. As little as 10 femtograms of plutonium can be detected in samples, and isotopic signatures determined for samples containing sub-100 femtogram amounts. Uranium, present in all environmental samples, can generally yield isotopic signatures of anthropogenic origin when present at the 40 picogram g (super -1) level. Solid samples (soils, sediments, fauna, and tissue) can range from a few particles to several kilograms in size. Water samples can range from a few mL to as much as 200 L. JF - Journal of the Royal Society of Western Australia AU - Rokop, D J AU - Efurd, D W AU - Benjamin, T M AU - Cappis, J H AU - Chamberlin, J W AU - Poths, H AU - Roensch, F R A2 - Withers, Philip C. A2 - Rosman, Kevin J. R. Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 85 EP - 90 PB - Royal Society of Western Australia, Perth, West. Aust. VL - 79, Part 1 SN - 0035-922X, 0035-922X KW - United States KW - Pu-240/Pu-239 KW - isotopes KW - site exploration KW - plutonium KW - Pajarito Plateau KW - techniques KW - New Mexico KW - Los Alamos County New Mexico KW - radioactive isotopes KW - alpha-ray spectroscopy KW - applications KW - soils KW - monitoring KW - isotope ratios KW - pollution KW - gamma-ray spectroscopy KW - mass spectroscopy KW - Rocky Flats KW - Los Alamos National Laboratory KW - measurement KW - thermal ionization mass spectroscopy KW - detection KW - metals KW - U-234 KW - uranium KW - U-238 KW - Colorado KW - spectroscopy KW - actinides KW - U-236 KW - U-235 KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52674601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Royal+Society+of+Western+Australia&rft.atitle=Isotopic+signatures%3B+an+important+tool+in+today%27s+world&rft.au=Rokop%2C+D+J%3BEfurd%2C+D+W%3BBenjamin%2C+T+M%3BCappis%2C+J+H%3BChamberlin%2C+J+W%3BPoths%2C+H%3BRoensch%2C+F+R&rft.aulast=Rokop&rft.aufirst=D&rft.date=1996-03-01&rft.volume=79%2C+Part+1&rft.issue=&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Royal+Society+of+Western+Australia&rft.issn=0035922X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - de Laeter symposium on Isotope science N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 8 N1 - PubXState - West. Aust. N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JRSUAU N1 - SubjectsTermNotLitGenreText - actinides; alpha-ray spectroscopy; applications; Colorado; detection; gamma-ray spectroscopy; isotope ratios; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; mass spectroscopy; measurement; metals; monitoring; New Mexico; Pajarito Plateau; plutonium; pollution; Pu-240/Pu-239; radioactive isotopes; Rocky Flats; site exploration; soils; spectroscopy; techniques; thermal ionization mass spectroscopy; U-234; U-235; U-236; U-238; United States; uranium ER - TY - JOUR T1 - The ion exchange properties of low rank coals on actinides and other heavy metals AN - 52525714; 1999-008675 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Wong, A S AU - Stalnaker, N D AU - Lafferty, C J AU - Robertson, J D AU - Kuhr, J H A2 - Oteyza, Julian Y1 - 1996/03// PY - 1996 DA - March 1996 PB - American Chemical Society, Washington, DC VL - 211 SN - 0065-7727, 0065-7727 KW - Superfund KW - pollutants KW - reclamation KW - waste disposal sites KW - pollution KW - remediation KW - radioactive waste KW - rank KW - sedimentary rocks KW - decontamination KW - metals KW - coal KW - chemical properties KW - lignite KW - ion exchange KW - efficiency KW - waste disposal KW - actinides KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52525714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=The+ion+exchange+properties+of+low+rank+coals+on+actinides+and+other+heavy+metals&rft.au=Wong%2C+A+S%3BStalnaker%2C+N+D%3BLafferty%2C+C+J%3BRobertson%2C+J+D%3BKuhr%2C+J+H&rft.aulast=Wong&rft.aufirst=A&rft.date=1996-03-01&rft.volume=211&rft.issue=&rft.spage=FUEL+133&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 211th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; chemical properties; coal; decontamination; efficiency; heavy metals; ion exchange; lignite; metals; pollutants; pollution; radioactive waste; rank; reclamation; remediation; sedimentary rocks; Superfund; waste disposal; waste disposal sites ER - TY - RPRT T1 - Heat mining to extract hot dry rock geothermal energy; technical & scientific progress AN - 52144455; 2002-013685 JF - Federal Geothermal Research Program update; fiscal year 1995 AU - Duchane, David V Y1 - 1996/03// PY - 1996 DA - March 1996 KW - United States KW - technology KW - GEOCRACK KW - well-logging KW - data processing KW - Sandoval County New Mexico KW - power plants KW - New Mexico KW - hot dry rocks KW - fluid dynamics KW - models KW - geothermal energy KW - computer programs KW - heat flow KW - Fenton Hill KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52144455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=Duchane%2C+David+V&rft.aulast=Duchane&rft.aufirst=David&rft.date=1996-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Heat+mining+to+extract+hot+dry+rock+geothermal+energy%3B+technical+%26+scientific+progress&rft.title=Heat+mining+to+extract+hot+dry+rock+geothermal+energy%3B+technical+%26+scientific+progress&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 9 N1 - Availability - U. S. Department of Energy, United States N1 - Document feature - illus. incl. 1 table, sects. N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The Lunar Prospector gamma-ray spectrometer AN - 51325549; 1996-051137 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Feldman, W C AU - Binder, A B AU - Hubbard, G S AU - McMurray, R E, Jr AU - Miller, M C AU - Prettyman, T H Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 355 EP - 356 PB - Lunar and Planetary Science Conference, Houston, TX VL - 27, Part 1 KW - programs KW - Moon KW - Monte Carlo analysis KW - statistical analysis KW - Lunar Prospector Program KW - gamma-ray spectra KW - gamma-ray spectroscopy KW - mapping KW - spectra KW - spectroscopy KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51325549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Great+Plains+Sociologist&rft.atitle=Assessing+the+Myth%3A+A+Study+of+Eligible+Athletes%27+Grade+Point+Averages&rft.au=Vilhauer%2C+Dave%3BRosonke%2C+Jerome&rft.aulast=Vilhauer&rft.aufirst=Dave&rft.date=1991-01-01&rft.volume=4&rft.issue=1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=The+Great+Plains+Sociologist&rft.issn=08960054&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-seventh lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - gamma-ray spectra; gamma-ray spectroscopy; instruments; Lunar Prospector Program; mapping; Monte Carlo analysis; Moon; programs; spectra; spectroscopy; statistical analysis ER - TY - JOUR T1 - The MARS-96 PGS germanium gamma-ray spectrometer AN - 50330085; 1996-051403 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mitrofanov, I G AU - Anfimov, D S AU - Chernenko, A M AU - Dolidze, V Sh AU - Kostenko, V I AU - Isupov, O E (O Ye) AU - Pozanenko, A S AU - Ton'shev, A K AU - Ushakov, D A AU - Bobrovnitsky, Yu I AU - Tomilina, T M AU - Auchampaugh, G F AU - Cafferty, M M AU - Drake, D M AU - Fenimore, E E AU - Klebesadel, R W AU - Longmire, J L AU - Moss, C E AU - Reedy, R C AU - Valencia, J E Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 885 EP - 886 PB - Lunar and Planetary Science Conference, Houston, TX VL - 27, Part 2 KW - surface properties KW - programs KW - Mars 96 Program KW - gamma-ray spectroscopy KW - Mars KW - terrestrial planets KW - planets KW - metals KW - germanium KW - orbital observations KW - spectroscopy KW - instruments KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50330085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+MARS-96+PGS+germanium+gamma-ray+spectrometer&rft.au=Mitrofanov%2C+I+G%3BAnfimov%2C+D+S%3BChernenko%2C+A+M%3BDolidze%2C+V+Sh%3BKostenko%2C+V+I%3BIsupov%2C+O+E+%28O+Ye%29%3BPozanenko%2C+A+S%3BTon%27shev%2C+A+K%3BUshakov%2C+D+A%3BBobrovnitsky%2C+Yu+I%3BTomilina%2C+T+M%3BAuchampaugh%2C+G+F%3BCafferty%2C+M+M%3BDrake%2C+D+M%3BFenimore%2C+E+E%3BKlebesadel%2C+R+W%3BLongmire%2C+J+L%3BMoss%2C+C+E%3BReedy%2C+R+C%3BValencia%2C+J+E&rft.aulast=Mitrofanov&rft.aufirst=I&rft.date=1996-03-01&rft.volume=27%2C+Part+2&rft.issue=&rft.spage=885&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-seventh Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - design; gamma-ray spectroscopy; germanium; instruments; Mars; Mars 96 Program; metals; orbital observations; planets; programs; spectroscopy; surface properties; terrestrial planets ER - TY - JOUR T1 - Variable viscosity convection and partial melting in the continental asthenosphere AN - 50157001; 2001-013913 AB - Convection beneath continents may be associated with the generation of partially molten zones at depth. Experimentally determined non-Newtonian, temperature- and pressure-dependent creep laws for olivine were used to model upper mantle convection in the presence and absence of a melt phase. In our models, convection is chaotic and exhibits a strong time dependence. Using model "dry" and "water-undersaturated" solidus relations, partially molten regions develop at asthenospheric depths forming low-viscosity regions. The existence of these regions is linked to convection and consequently varies in space and time with an episodicity of 5 to 10 m.y., in good agreement with observations based on seismic tomography and the episodicity and volumetric abundance of surface volcanies. For an average continental heat flux of about 53.3 mW/m (super 2) , maximum melt fractions range between 0 and 2% (dry solidus) and 2 and 4% (water-undersaturated solidus). On the basis of experimental deformation studies, we employed an empirical relationship between stress and grain size to assess the grain size variations possible in the upper mantle. The grain sizes obtained (millimeters to centimeters) are in good agreement with grain sizes observed in natural examples. The smallest grain sizes occur along Earrow zones of high stress within the deepest part of the lithosphere. The largest grain sizes are found in the overlying lithosphere and in partially molten asthenospheric regions. As our models scale well to natural observations, these results appear to preclude diffusion creep (n = 1) as a viable upper mantle steady state deformation mechanism. Copyright 1996 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Schmeling, Harro AU - Bussod, Gilles Y Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 5411 EP - 5423 PB - American Geophysical Union, Washington, DC VL - 101 IS - B3 SN - 0148-0227, 0148-0227 KW - tomography KW - silicates KW - upper mantle KW - grain size KW - stress KW - partial melting KW - mantle KW - olivine group KW - convection KW - depth KW - nesosilicates KW - models KW - low-velocity zones KW - asthenosphere KW - viscosity KW - rheology KW - diffusion creep KW - olivine KW - orthosilicates KW - continents KW - P-T conditions KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50157001?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Variable+viscosity+convection+and+partial+melting+in+the+continental+asthenosphere&rft.au=Schmeling%2C+Harro%3BBussod%2C+Gilles+Y&rft.aulast=Schmeling&rft.aufirst=Harro&rft.date=1996-03-01&rft.volume=101&rft.issue=B3&rft.spage=5411&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F95JB01154 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asthenosphere; continents; convection; depth; diffusion creep; grain size; low-velocity zones; mantle; models; nesosilicates; olivine; olivine group; orthosilicates; P-T conditions; partial melting; rheology; silicates; stress; tomography; upper mantle; viscosity DO - http://dx.doi.org/10.1029/95JB01154 ER - TY - JOUR T1 - Fluorescence resonance energy transfer analysis of lipopolysaccharide in detergent micelles. AN - 78294337; 8789116 AB - Bacterial endotoxins or lipopolysaccharides (LPS), cell wall components of gram-negative bacteria, are involved in septic shock. LPS consists of a lipid A tail attached to core and O-antigen polysaccharides, but little is known about the supramolecular structure of LPS in blood. We have developed an approach to locate donor and acceptor probes in sulfobetaine palmitate detergent micelles using steady-state and time-resolved fluorescence resonance energy transfer. C18-fluorescein and several LPS species of varying molecular weight labeled with fluorescein isothiocyanate (FITC-LPS) were the donor probes. Acceptor probes were 1,1-dilinoleyl-3,3,3',3'-tetramethyl indocarbocyanine perchlorate (Fast C18-Dil, Ro approximately 68 A), and octadecyl B rhodamine chloride (C18-Rhd, Ro approximately 58 A). With either acceptor, the transfer was of similar high efficiency when FITC-LPS Salmonella minnesota Re 595 (2,500 mol wt, lacking both core and O-antigen) or C18-fluorescein were the fluorescent donor probes. Thus, the donor FITC-LPS with short polysaccharide chain S. minnesota Re 595 and the control donor C18-fluorescein appear to be close to the micelle surface. The transfer efficiency decreased as the molecular weight of the LPS increased. Separation distances between the longest FITC-LPS, S. minnesota (20,000 mol wt, with a long O-antigen), and the micelle were estimated to be 1.5 Ro or more (approximately 100 A), consistent with an extended conformation for the longer O-antigen polysaccharide chain in the detergent. JF - Biophysical journal AU - Wiström, C A AU - Jones, G M AU - Tobias, P S AU - Sklar, L A AD - Life Sciences Division and National Flow Cytometry Resource, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1996/02// PY - 1996 DA - February 1996 SP - 988 EP - 997 VL - 70 IS - 2 SN - 0006-3495, 0006-3495 KW - Detergents KW - 0 KW - Lipopolysaccharides KW - Micelles KW - Fluorescein-5-isothiocyanate KW - I223NX31W9 KW - Index Medicus KW - Molecular Structure KW - Animals KW - Spectrometry, Fluorescence KW - Energy Transfer KW - Humans KW - Shock, Septic -- etiology KW - Biophysical Phenomena KW - Biophysics KW - Salmonella -- chemistry KW - Models, Chemical KW - Lipopolysaccharides -- toxicity KW - Lipopolysaccharides -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78294337?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biophysical+journal&rft.atitle=Fluorescence+resonance+energy+transfer+analysis+of+lipopolysaccharide+in+detergent+micelles.&rft.au=Wistr%C3%B6m%2C+C+A%3BJones%2C+G+M%3BTobias%2C+P+S%3BSklar%2C+L+A&rft.aulast=Wistr%C3%B6m&rft.aufirst=C&rft.date=1996-02-01&rft.volume=70&rft.issue=2&rft.spage=988&rft.isbn=&rft.btitle=&rft.title=Biophysical+journal&rft.issn=00063495&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-10-21 N1 - Date created - 1996-10-21 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Biochemistry. 1980 Apr 1;19(7):1294-301 [7387988] Proc Natl Acad Sci U S A. 1993 Apr 1;90(7):2744-8 [7681988] Biophys J. 1979 May;26(2):161-93 [262414] Nature. 1970 Aug 15;227(5259):680-5 [5432063] Biochemistry. 1972 Jun 20;11(13):2509-17 [5040656] Eur J Biochem. 1975 Jun;54(2):603-10 [1100380] Biochemistry. 1978 Nov 28;17(24):5241-8 [728398] Infect Immun. 1979 Feb;23(2):287-93 [311343] Biochim Biophys Acta. 1980 Apr 24;597(3):502-17 [6990986] Biophys J. 1979 May;26(2):195-207 [262415] Anal Biochem. 1982 Jan 1;119(1):115-9 [6176137] Biochim Biophys Acta. 1983 Mar 21;737(1):51-115 [6337630] Eur J Biochem. 1984 Dec 3;145(2):265-72 [6437812] J Bacteriol. 1985 Apr;162(1):9-20 [3980449] Microbiol Rev. 1985 Mar;49(1):1-32 [2580220] J Bacteriol. 1985 May;162(2):738-45 [3886631] J Biol Chem. 1985 May 10;260(9):5271-8 [3988753] Biochim Biophys Acta. 1985 Jun 12;822(1):43-62 [3890948] Anal Biochem. 1986 Feb 1;152(2):250-5 [3963361] Infect Immun. 1987 Nov;55(11):2636-44 [3666956] Biophys Chem. 1987 Oct;28(1):35-50 [3689869] Anal Biochem. 1988 Jul;172(1):61-77 [3189776] Eur J Biochem. 1989 Jan 15;179(1):11-6 [2492937] J Chromatogr. 1988 Oct 26;450(3):381-7 [3071540] J Biol Chem. 1989 Jun 25;264(18):10867-71 [2471708] Biophys J. 1993 Apr;64(4):1215-31 [8494979] Biochemistry. 1993 Jun 22;32(24):6237-42 [8512934] Eur J Biochem. 1993 Jun 15;214(3):695-701 [8319680] Int J Artif Organs. 1993 May;16(5):245-8 [8354582] Eur J Biochem. 1993 Oct 15;217(2):771-9 [8223620] Proc Natl Acad Sci U S A. 1993 Nov 1;90(21):9930-4 [7694296] Proc Natl Acad Sci U S A. 1993 Nov 1;90(21):9935-8 [7694297] Eur J Biochem. 1993 Dec 1;218(2):555-63 [8269946] FASEB J. 1994 Feb;8(2):217-25 [8119492] Biophys J. 1994 Mar;66(3 Pt 1):674-82 [8011898] J Biol Chem. 1995 Mar 10;270(10):5320-5 [7534294] J Biol Chem. 1995 May 5;270(18):10482-8 [7537731] Eur J Biochem. 1989 Dec 8;186(1-2):325-32 [2689173] Annu Rev Biochem. 1990;59:129-70 [1695830] Science. 1990 Sep 21;249(4975):1429-31 [2402637] Science. 1990 Sep 21;249(4975):1431-3 [1698311] Methods Biochem Anal. 1991;35:127-205 [2002770] J Struct Biol. 1990 Oct-Dec;105(1-3):11-21 [2100144] FASEB J. 1991 Sep;5(12):2652-60 [1916089] J Bacteriol. 1992 Jan;174(1):336-41 [1370286] J Bacteriol. 1992 Jul;174(14):4798-806 [1624466] Biochemistry. 1992 Sep 1;31(34):7939-47 [1510980] J Struct Biol. 1992 Mar-Apr;108(2):93-106 [1486008] Biochemistry. 1993 Mar 9;32(9):2409-14 [7680231] Eur J Biochem. 1980;107(1):137-43 [6995111] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Petrogenesis constrained by (super 3) He surface exposure and (super 40) Ar/ (super 39) Ar dating; Pleistocene Potrillo volcanic field, Rio Grande Rift AN - 52856494; 1996-032506 JF - Abstracts with Programs - Geological Society of America AU - Williams, Wendi J W AU - Anthony, Elizabeth Y AU - Poths, Jane AU - McIntosh, William C AU - Housh, Todd B AU - Cloos, Mark Y1 - 1996/02// PY - 1996 DA - February 1996 SP - 69 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 1 SN - 0016-7592, 0016-7592 KW - United States KW - alkali basalts KW - Brunhes Chron KW - volcanic rocks KW - trachybasalts KW - isotopes KW - igneous rocks KW - Dona Ana County New Mexico KW - New Mexico KW - He-3 KW - stable isotopes KW - melts KW - Rio Grande Rift KW - Cenozoic KW - major elements KW - dates KW - noble gases KW - basalts KW - absolute age KW - Matuyama Chron KW - helium KW - rare earths KW - crystal fractionation KW - Ar/Ar KW - North America KW - upper Cenozoic KW - Quaternary KW - paleomagnetism KW - Mohorovicic discontinuity KW - genesis KW - lava KW - metals KW - magmas KW - eruptions KW - upper Quaternary KW - maars KW - Pleistocene KW - crystallization KW - West Potrillo Mountains KW - Kilbourne Hole KW - basanite KW - Potrillo volcanic field KW - 03:Geochronology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52856494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Petrogenesis+constrained+by+%28super+3%29+He+surface+exposure+and+%28super+40%29+Ar%2F+%28super+39%29+Ar+dating%3B+Pleistocene+Potrillo+volcanic+field%2C+Rio+Grande+Rift&rft.au=Williams%2C+Wendi+J+W%3BAnthony%2C+Elizabeth+Y%3BPoths%2C+Jane%3BMcIntosh%2C+William+C%3BHoush%2C+Todd+B%3BCloos%2C+Mark&rft.aulast=Williams&rft.aufirst=Wendi+J&rft.date=1996-02-01&rft.volume=28&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 30th annual meeting of the Geological Society of America, South-Central Section and associated societies N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absolute age; alkali basalts; Ar/Ar; basalts; basanite; Brunhes Chron; Cenozoic; crystal fractionation; crystallization; dates; Dona Ana County New Mexico; eruptions; genesis; He-3; helium; igneous rocks; isotopes; Kilbourne Hole; lava; maars; magmas; major elements; Matuyama Chron; melts; metals; Mohorovicic discontinuity; New Mexico; noble gases; North America; paleomagnetism; Pleistocene; Potrillo volcanic field; Quaternary; rare earths; Rio Grande Rift; stable isotopes; trachybasalts; United States; upper Cenozoic; upper Quaternary; volcanic rocks; West Potrillo Mountains ER - TY - JOUR T1 - Using (super 3) He surface exposure techniques to date Pleistocene maar eruptions; Kilbourne and Hunt's holes, Potrillo volcanic field AN - 52856372; 1996-032419 JF - Abstracts with Programs - Geological Society of America AU - Miller, Joseph G AU - Williams, Wendi J W AU - Anthony, Elizabeth Y AU - Poths, Jane AU - Cloos, Mark Y1 - 1996/02// PY - 1996 DA - February 1996 SP - 53 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 1 SN - 0016-7592, 0016-7592 KW - United States KW - Quaternary KW - isotopes KW - mafic composition KW - Dona Ana County New Mexico KW - New Mexico KW - He-3 KW - stable isotopes KW - Cenozoic KW - lava KW - dates KW - noble gases KW - eruptions KW - maars KW - absolute age KW - Pleistocene KW - Hunt's Hole KW - helium KW - Aftonian KW - Kilbourne Hole KW - geochemistry KW - lower Pleistocene KW - Potrillo volcanic field KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52856372?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Using+%28super+3%29+He+surface+exposure+techniques+to+date+Pleistocene+maar+eruptions%3B+Kilbourne+and+Hunt%27s+holes%2C+Potrillo+volcanic+field&rft.au=Miller%2C+Joseph+G%3BWilliams%2C+Wendi+J+W%3BAnthony%2C+Elizabeth+Y%3BPoths%2C+Jane%3BCloos%2C+Mark&rft.aulast=Miller&rft.aufirst=Joseph&rft.date=1996-02-01&rft.volume=58&rft.issue=1-2&rft.spage=127&rft.isbn=&rft.btitle=&rft.title=Sex+Roles%3A+A+Journal+of+Research&rft.issn=03600025&rft_id=info:doi/10.1007%2Fs11199-007-9229-x LA - English DB - GeoRef N1 - Conference title - 30th annual meeting of the Geological Society of America, South-Central Section and associated societies N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 2 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absolute age; Aftonian; Cenozoic; dates; Dona Ana County New Mexico; eruptions; geochemistry; He-3; helium; Hunt's Hole; isotopes; Kilbourne Hole; lava; lower Pleistocene; maars; mafic composition; New Mexico; noble gases; Pleistocene; Potrillo volcanic field; Quaternary; stable isotopes; United States ER - TY - JOUR T1 - Nonlinear spectral mixing theory to model multispectral signatures AN - 52807116; 1996-070792 JF - Proceedings of the Thematic Conference on Geologic Remote Sensing AU - Borel, Christoph C Y1 - 1996/02// PY - 1996 DA - February 1996 SP - II.11 EP - II.20 PB - Environmental Research Institute of Michigan, Ann Arbor, MI VL - 11 SN - 1067-0106, 1067-0106 KW - computer programs KW - thematic mapper KW - Landsat KW - data processing KW - theoretical models KW - vegetation KW - reflectance KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52807116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.atitle=Nonlinear+spectral+mixing+theory+to+model+multispectral+signatures&rft.au=Borel%2C+Christoph+C&rft.aulast=Borel&rft.aufirst=Christoph&rft.date=1996-02-01&rft.volume=11&rft.issue=&rft.spage=II.11&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.issn=10670106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh thematic conference on Applied geologic remote sensing N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 10 N1 - PubXState - MI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - computer programs; data processing; Landsat; reflectance; remote sensing; thematic mapper; theoretical models; vegetation ER - TY - JOUR T1 - Imaging data analyses for hazardous waste applications AN - 52806506; 1996-070818 JF - Proceedings of the Thematic Conference on Geologic Remote Sensing AU - David, N A AU - Ginsberg, I W AU - Lewis, A A AU - Odenweller, Julie B AU - Stahl, Gary A AU - Tyler, W A AU - Van Eeckhout, E M AU - Balick, L K AU - Weber, R M Y1 - 1996/02// PY - 1996 DA - February 1996 SP - II.241 EP - II.242 PB - Environmental Research Institute of Michigan, Ann Arbor, MI VL - 11 SN - 1067-0106, 1067-0106 KW - United States KW - hazardous waste KW - digital data KW - imagery KW - waste disposal sites KW - New Mexico KW - Los Alamos County New Mexico KW - waste disposal KW - Los Alamos National Laboratory KW - image analysis KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52806506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.atitle=Imaging+data+analyses+for+hazardous+waste+applications&rft.au=David%2C+N+A%3BGinsberg%2C+I+W%3BLewis%2C+A+A%3BOdenweller%2C+Julie+B%3BStahl%2C+Gary+A%3BTyler%2C+W+A%3BVan+Eeckhout%2C+E+M%3BBalick%2C+L+K%3BWeber%2C+R+M&rft.aulast=David&rft.aufirst=N&rft.date=1996-02-01&rft.volume=11&rft.issue=&rft.spage=II.241&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.issn=10670106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh thematic conference on Applied geologic remote sensing N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - MI N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - digital data; hazardous waste; image analysis; imagery; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; remote sensing; United States; waste disposal; waste disposal sites ER - TY - JOUR T1 - Neural network identifications of spectral signatures AN - 52804792; 1996-070793 JF - Proceedings of the Thematic Conference on Geologic Remote Sensing AU - Gisler, Galen AU - Borel, Christoph C Y1 - 1996/02// PY - 1996 DA - February 1996 SP - II.21 EP - II.29 PB - Environmental Research Institute of Michigan, Ann Arbor, MI VL - 11 SN - 1067-0106, 1067-0106 KW - Landsat KW - biomass KW - agriculture KW - spectral analysis KW - ecology KW - neural networks KW - satellite methods KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52804792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.atitle=Neural+network+identifications+of+spectral+signatures&rft.au=Gisler%2C+Galen%3BBorel%2C+Christoph+C&rft.aulast=Gisler&rft.aufirst=Galen&rft.date=1996-02-01&rft.volume=45&rft.issue=3-4&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Sex+Roles&rft.issn=03600025&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh thematic conference on Applied geologic remote sensing N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 7 N1 - PubXState - MI N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - agriculture; biomass; ecology; Landsat; neural networks; remote sensing; satellite methods; spectral analysis ER - TY - JOUR T1 - A national laboratory industry collaboration to use SEG/EAEG model data sets AN - 52756762; 1997-016150 AB - A collaboration between universities, U.S. national laboratories, the oil and gas industry and was initiated in the spring of 1995 to exploit and enhance the value of the data sets produced by the SEG/EAEG 3-D modeling project (SEM). The project, part of the Department of Energy's Advanced Computing Technology Initiative (ACTI), is titled "Testing Advanced Computation Tools for 3-D Seismic Analysis Using the SEG/EAEG 3-D Model Data Set" and is usually called ACTI/SEG. Project goals are to complement and extend the usefulness of the SEM data set. The two major efforts will involve testing/improving numerical modeling and developing new imaging/inversion methods. All of these efforts are geared toward the two models generated under the SEM effort. JF - Leading Edge (Tulsa, OK) AU - House, Leigh S AU - Fehler, Mike AU - Barhen, Jacob AU - Aminzadeh, Fred AU - Larsen, Shawn Y1 - 1996/02// PY - 1996 DA - February 1996 SP - 135 EP - 136 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 15 IS - 2 SN - 1070-485X, 1070-485X KW - SEG/EAEG model KW - models KW - three-dimensional models KW - geophysical methods KW - data processing KW - data bases KW - international cooperation KW - industry KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52756762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Leading+Edge+%28Tulsa%2C+OK%29&rft.atitle=A+national+laboratory+industry+collaboration+to+use+SEG%2FEAEG+model+data+sets&rft.au=House%2C+Leigh+S%3BFehler%2C+Mike%3BBarhen%2C+Jacob%3BAminzadeh%2C+Fred%3BLarsen%2C+Shawn&rft.aulast=House&rft.aufirst=Leigh&rft.date=1996-02-01&rft.volume=15&rft.issue=2&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Leading+Edge+%28Tulsa%2C+OK%29&rft.issn=1070485X&rft_id=info:doi/10.1190%2F1.1437285 L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 1997-01-01 N1 - PubXState - OK N1 - Document feature - illus. incl. block diag. N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - data bases; data processing; geophysical methods; industry; international cooperation; models; SEG/EAEG model; seismic methods; three-dimensional models DO - http://dx.doi.org/10.1190/1.1437285 ER - TY - JOUR T1 - Nonlinear elasticity and stress-induced anisotropy in rock AN - 50176590; 1996-045291 AB - The elastic nonlinear behavior of rocks as evidenced by deviations from Hooke's law in stress-strain measurements, and attributable to the presence of mechanical defects (compliant features such as cracks, microfractures, grain joints), is a well-established observation. The purpose of this paper is to make the connection between the elastic nonlinearity and stress-induced effects on waves, in this case uniaxial-stress-induced transverse isotropy. The linear and nonlinear elastic coefficients constitute the most condensed manner in which to characterize the elastic behavior of the rock. We present both the second-and the third-order nonlinear elastic constants obtained from experimental data on rock samples assumed homogeneous and isotropic when unstressed. As is normally the case, the third-order (nonlinear) constants are found to be much larger than the second-order (linear) elastic constants. Contrary to results from intact homogeneous solids (materials without mechanical defects), rocks exhibit weak to strong nonlinearity and always in the same manner (i.e., an increase of the moduli with pressure). As a consequence the stress-induced P wave anisotropy and S wave birefringence can be large. The stress-induced P wave anisotropy appears to be much larger than the S wave birefringence. The fast direction is parallel to the stress direction, and the anisotropy goes as sin (super 2) theta , theta being the angle between the propagation direction and the stress direction. Experiments on rocks indicate that at low applied stresses, the proportionality of the stress and the induced S birefringence and P anisotropy predicted by theory is well corroborated. JF - Journal of Geophysical Research AU - Johnson, P A AU - Rasolofosaon, P N J Y1 - 1996/02// PY - 1996 DA - February 1996 SP - 3113 EP - 3124 PB - American Geophysical Union, Washington, DC VL - 101 IS - B2 SN - 0148-0227, 0148-0227 KW - P-waves KW - body waves KW - experimental studies KW - strain KW - stress KW - elastic waves KW - elastic constants KW - elastic materials KW - uniaxial tests KW - measurement KW - Hooke's law KW - propagation KW - seismic waves KW - wave dispersion KW - S-waves KW - anisotropy KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50176590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Nonlinear+elasticity+and+stress-induced+anisotropy+in+rock&rft.au=Johnson%2C+P+A%3BRasolofosaon%2C+P+N+J&rft.aulast=Johnson&rft.aufirst=P&rft.date=1996-02-01&rft.volume=101&rft.issue=B2&rft.spage=3113&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F95JB02880 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anisotropy; body waves; elastic constants; elastic materials; elastic waves; experimental studies; Hooke's law; measurement; P-waves; propagation; S-waves; seismic waves; strain; stress; uniaxial tests; wave dispersion DO - http://dx.doi.org/10.1029/95JB02880 ER - TY - JOUR T1 - Effect of depth-dependent viscosity on the planform of mantle convection AN - 50065462; 1996-020850 AB - A three-dimensional spherical convection model is used to show that a modest increase in mantle viscosity with depth has a marked effect on the planform of convection. This results in a long, linear downwelling from the upper surface boundary layer and a 'red' thermal heterogeneity spectrum as deduced for the mantle. These effects of depth-dependent viscosity may be comparable to the effects of the plates themselves. Models obtained (assuming that the mantle is incompressible and that all material properties are constant except for viscosity) are figured in colour, and model parameters are tabulated. JF - Nature (London) AU - Bunge, Hans-Peter AU - Richards, Mark A AU - Baumgardner, John R Y1 - 1996/02// PY - 1996 DA - February 1996 SP - 436 EP - 438 PB - Macmillan Journals, London VL - 379 IS - 6564 SN - 0028-0836, 0028-0836 KW - numerical models KW - three-dimensional models KW - graphic display KW - data processing KW - mantle KW - convection KW - depth KW - two-dimensional models KW - temperature KW - viscosity KW - heat flow KW - digital simulation KW - planform models KW - spherical models KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50065462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Effect+of+depth-dependent+viscosity+on+the+planform+of+mantle+convection&rft.au=Bunge%2C+Hans-Peter%3BRichards%2C+Mark+A%3BBaumgardner%2C+John+R&rft.aulast=Bunge&rft.aufirst=Hans-Peter&rft.date=1996-02-01&rft.volume=379&rft.issue=6564&rft.spage=436&rft.isbn=&rft.btitle=&rft.title=International+Review+of+Sport+Sociology&rft.issn=&rft_id=info:doi/ L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1996-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - convection; data processing; depth; digital simulation; graphic display; heat flow; mantle; numerical models; planform models; spherical models; temperature; three-dimensional models; two-dimensional models; viscosity DO - http://dx.doi.org/10.1038/379436a0 ER - TY - BOOK T1 - APPROACHING SECOND: SECOND POSITION CLITICS AND RELATED PHENOMENA AN - 85690288; 9904769 AB - This vol in the CSLI Lecture Notes series contains an Introduction & 18 papers on the topic of second position clitics & their distribution & behavior. C. Brennan JF - xxiii+629pp, Stanford, CA: Center Study Language & Information, 1996 AU - Halpern, Aaron L AU - Zwicky, Arnold M Y1 - 1996///0, PY - 1996 DA - 0, 1996 PB - Stanford, CA: Center Study Language & Information SN - 1575860147 KW - Clitics (12500) KW - Syntactic Analysis (86752) KW - book KW - 4310: syntax; syntax UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85690288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Linguistics+and+Language+Behavior+Abstracts+%28LLBA%29&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Halpern%2C+Aaron+L%3BZwicky%2C+Arnold+M&rft.aulast=Halpern&rft.aufirst=Aaron&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1575860147&rft.btitle=APPROACHING+SECOND%3A+SECOND+POSITION+CLITICS+AND+RELATED+PHENOMENA&rft.title=APPROACHING+SECOND%3A+SECOND+POSITION+CLITICS+AND+RELATED+PHENOMENA&rft.issn=&rft_id=info:doi/ LA - English DB - Linguistics and Language Behavior Abstracts (LLBA) N1 - Date revised - 2003-10-01 N1 - SuppNotes - Edition date: 1996 N1 - Last updated - 2016-09-27 ER - TY - JOUR T1 - On the origin of lateral asymmetry. AN - 77981956; 8575246 AB - Lateral asymmetry refers to unequal fluorescent intensity between adjacent regions of sister chromatids. It has been observed in the centromeric regions of mitotic chromosomes of mouse or human origin when cells are grown in 5-bromo-2'-deoxyuridine (BrdU) for a single round of DNA synthesis. The chromosome-orientation fluorescence in situ hybridization (CO-FISH) technique was used with pseudodiploid mouse cells to show that the regions of asymmetrical brightness coincide with major satellite repetitive DNA, and that the more heavily BrdU-substituted chromatid is the one that fluoresces less brightly. These observations support a 20 year old hypothesis on the origin of lateral asymmetry. Other observations suggest that differential loss of DNA from the heavily substituted chromatid also contributes to lateral asymmetry. JF - Chromosoma AU - Goodwin, E H AU - Meyne, J AU - Bailey, S M AU - Quigley, D AD - Los Alamos National Laboratory, Life Sciences Division, Mail Stop M888, Los Alamos, NM 87545, USA. Y1 - 1996 PY - 1996 DA - 1996 SP - 345 EP - 347 VL - 104 IS - 5 SN - 0009-5915, 0009-5915 KW - Antimetabolites KW - 0 KW - DNA Probes KW - DNA, Satellite KW - DNA, Single-Stranded KW - Fluorescent Dyes KW - Bromodeoxyuridine KW - G34N38R2N1 KW - Bisbenzimidazole KW - LHQ7J5KV9B KW - Index Medicus KW - Animals KW - DNA Probes -- genetics KW - Base Sequence KW - Base Composition KW - Molecular Sequence Data KW - Mice KW - Cell Line KW - In Situ Hybridization, Fluorescence -- methods KW - Chromatids -- chemistry KW - DNA, Satellite -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77981956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chromosoma&rft.atitle=On+the+origin+of+lateral+asymmetry.&rft.au=Goodwin%2C+E+H%3BMeyne%2C+J%3BBailey%2C+S+M%3BQuigley%2C+D&rft.aulast=Goodwin&rft.aufirst=E&rft.date=1996-01-01&rft.volume=104&rft.issue=5&rft.spage=345&rft.isbn=&rft.btitle=&rft.title=Chromosoma&rft.issn=00095915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-03-14 N1 - Date created - 1996-03-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Single point aerosol sampling: evaluation of mixing and probe performance in a nuclear stack. AN - 77900756; 7499148 AB - Alternative reference methodologies have been developed for sampling of radionuclides from stacks and ducts, which differ from the methods previously required by the United States Environmental Protection Agency. These alternative reference methodologies have recently been approved by the U.S. EPA for use in lieu of the current standard techniques. The standard EPA methods are prescriptive in selection of sampling locations and in design of sampling probes whereas the alternative reference methodologies are performance driven. Tests were conducted in a stack at Los Alamos National Laboratory to demonstrate the efficacy of some aspects of the alternative reference methodologies. Coefficients of variation of velocity, tracer gas, and aerosol particle profiles were determined at three sampling locations. Results showed that numerical criteria placed upon the coefficients of variation by the alternative reference methodologies were met at sampling stations located 9 and 14 stack diameters from the flow entrance, but not at a location that was 1.5 diameters downstream from the inlet. Experiments were conducted to characterize the transmission of 10 microns aerodynamic diameter liquid aerosol particles through three types of sampling probes. The transmission ratio (ratio of aerosol concentration at the probe exit plane to the concentration in the free stream) was 107% for a 113 L min-1 (4-cfm) anisokinetic shrouded probe, but only 20% for an isokinetic probe that follows the existing EPA standard requirements. A specially designed isokinetic probe showed a transmission ratio of 63%. The shrouded probe performance would conform to the alternative reference methodologies criteria; however, the isokinetic probes would not. JF - Health physics AU - Rodgers, J C AU - Fairchild, C I AU - Wood, G O AU - Ortiz, C A AU - Muyshondt, A AU - McFarland, A R AD - Los Alamos National Laboratory, NM 87544, USA. Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 25 EP - 35 VL - 70 IS - 1 SN - 0017-9078, 0017-9078 KW - Aerosols KW - 0 KW - Air Pollutants, Radioactive KW - Index Medicus KW - Power Plants KW - Air Pollutants, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77900756?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Single+point+aerosol+sampling%3A+evaluation+of+mixing+and+probe+performance+in+a+nuclear+stack.&rft.au=Rodgers%2C+J+C%3BFairchild%2C+C+I%3BWood%2C+G+O%3BOrtiz%2C+C+A%3BMuyshondt%2C+A%3BMcFarland%2C+A+R&rft.aulast=Rodgers&rft.aufirst=J&rft.date=1996-01-01&rft.volume=70&rft.issue=1&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-01-17 N1 - Date created - 1996-01-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Quantitative discrimination of MEF2 sites. AN - 77895395; 8524326 AB - Myocyte-specific enhancer factor 2 (MEF2) is a family of closely related transcription factors that play a key role in the differentiation of muscle tissues and are important in the muscle-specific expression of a number of genes. Given the centrality of MEF2 in muscle differentiation, regulatory regions newly determined to be muscle specific are often studied for potential MEF2 binding sites. Possible sites are often located by comparison to a homologous gene or by matching to the consensus MEF2 sequence. Enough data have accumulated that a richer description of the MEF2 binding site, a position weight matrix, can be reliably constructed and its usefulness can be assessed. It was shown that scores from such a matrix approximate MEF2 binding energy and enable recognition of naturally occurring MEF2 sites with high sensitivity and specificity. Regulation of genes via MEF2-like sites is complicated by the fact that a number of transcription factors are involved. Not only is MEF2 itself a family of proteins, but several other, nonhomologous, transcription factors overlap MEF2 in DNA-binding specificity. Thus, more quantitative methods for recognizing potential sites may help with the lengthy process of disentangling the complex regulatory circuits of muscle-specific expression. JF - Molecular and cellular biology AU - Fickett, J W AD - Theoretical Biology and Biophysics Group, Los Alamos National Laboratory, New Mexico 87545, USA. Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 437 EP - 441 VL - 16 IS - 1 SN - 0270-7306, 0270-7306 KW - DNA-Binding Proteins KW - 0 KW - MEF2 Transcription Factors KW - Myogenic Regulatory Factors KW - Transcription Factors KW - DNA KW - 9007-49-2 KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Animals KW - Biometry KW - Humans KW - DNA -- metabolism KW - Muscles -- metabolism KW - Molecular Sequence Data KW - Amino Acid Sequence KW - Binding Sites -- genetics KW - Transcription Factors -- metabolism KW - DNA-Binding Proteins -- genetics KW - Transcription Factors -- genetics KW - DNA-Binding Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77895395?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Sociological+Spectrum+%3A+the+Official+Journal+of+the+Mid-South+Sociological+Association&rft.atitle=Gendered+jocks+or+equal+players%3F+Athletic+affiliation+and+hooking+up+among+college+students&rft.au=Allison%2C+Rachel&rft.aulast=Allison&rft.aufirst=Rachel&rft.date=2016-07-01&rft.volume=36&rft.issue=4&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Sociological+Spectrum+%3A+the+Official+Journal+of+the+Mid-South+Sociological+Association&rft.issn=02732173&rft_id=info:doi/10.1080%2F02732173.2015.1123127 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-01-19 N1 - Date created - 1996-01-19 N1 - Date revised - 2017-02-17 N1 - Genetic sequence - M80829; GENBANK; X58489; K01464; X14726; M95800; M63391; L36125; Z18892; X06351; M21487; M55673; M21390; M37984; X62155; M62404; M27092; J04971; M57905; X04260 N1 - SuppNotes - Cited By: Nucleic Acids Res. 1990 Nov 11;18(21):6197-204 [2243767] Nucleic Acids Res. 1990 Nov 11;18(21):6239-46 [2243772] Mol Cell Biol. 1991 Oct;11(10):4854-62 [1656214] Genes Dev. 1991 Dec;5(12A):2327-41 [1748287] Mol Cell Biol. 1992 Sep;12(9):3665-77 [1324403] Genes Dev. 1992 Sep;6(9):1783-98 [1516833] J Mol Evol. 1992 Oct;35(4):286-91 [1404414] Mol Cell Biol. 1992 Oct;12(10):4384-90 [1328854] Development. 1992 Aug;115(4):1087-101 [1360403] EMBO J. 1992 Dec;11(13):4981-91 [1281451] Development. 1992 Oct;116(2):321-34 [1363085] Proc Natl Acad Sci U S A. 1993 Feb 15;90(4):1546-50 [7679508] J Biol Chem. 1993 Mar 15;268(8):5349-52 [8449897] Mol Cell Biol. 1993 Apr;13(4):2564-77 [8455629] EMBO J. 1993 Apr;12(4):1387-401 [8096811] J Biol Chem. 1993 May 15;268(14):10403-15 [8387519] Proc Natl Acad Sci U S A. 1993 Jun 1;90(11):5282-6 [8506376] Mol Cell Biol. 1993 Jul;13(7):4432-44 [8321243] J Biol Chem. 1993 Sep 15;268(26):19512-20 [8366095] Mol Cell Biol. 1993 Oct;13(10):6469-78 [8413246] Science. 1993 Oct 8;262(5131):208-14 [8211139] Development. 1993 Aug;118(4):1095-106 [8269842] Science. 1994 Feb 11;263(5148):769-70 [8303292] Mol Cell Biol. 1994 Mar;14(3):1647-56 [8114702] Mol Cell Biol. 1994 Mar;14(3):1870-85 [8114720] J Biol Chem. 1994 Jun 17;269(24):16740-5 [8206996] Mol Cell Biol. 1994 Aug;14(8):5056-65 [8035789] EMBO J. 1994 Aug 1;13(15):3580-9 [8062833] Curr Genet. 1994 May;25(5):396-406 [8082184] Gene. 1994 Sep 30;147(2):243-8 [7926808] J Biol Chem. 1994 Nov 11;269(45):28514-21 [7545962] Science. 1994 Nov 18;266(5188):1236-40 [7973707] J Biol Chem. 1994 Dec 2;269(48):30595-603 [7982978] Science. 1995 Feb 3;267(5198):688-93 [7839146] J Biol Chem. 1995 Feb 17;270(7):2889-92 [7852366] Mol Cell Biol. 1995 Apr;15(4):1870-8 [7891680] Mol Cell Biol. 1995 May;15(5):2707-18 [7739551] Eur J Biochem. 1995 Apr 1;229(1):1-13 [7744019] Mol Cell Biol. 1995 Jun;15(6):2907-15 [7760790] Mol Cell Biol. 1989 Jun;9(6):2396-413 [2761536] Trends Biochem Sci. 1988 Jun;13(6):207-11 [3079537] Mol Cell Biol. 1989 Nov;9(11):5022-33 [2601707] Methods Enzymol. 1990;183:211-21 [2179676] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A review of broadband regional discrimination studies of NTS explosions and Western U.S. earthquakes AN - 753852825; 2010-068540 JF - NATO ASI Series. Series E: Applied Sciences AU - Taylor, Steven R A2 - Husebye, Eystein S. A2 - Dainty, Anton M. Y1 - 1996 PY - 1996 DA - 1996 SP - 755 EP - 775 PB - Nijhoff, Hague VL - 303 SN - 0168-132X, 0168-132X KW - United States KW - P-waves KW - mining KW - geologic hazards KW - underground mining KW - reliability KW - Lg-waves KW - elastic waves KW - frequency KW - California KW - Nevada Test Site KW - theoretical studies KW - surface waves KW - errors KW - rock bursts KW - multivariate analysis KW - Western U.S. KW - broad-band spectra KW - nuclear explosions KW - Nevada KW - seismograms KW - Idaho KW - body waves KW - Washington KW - monitoring KW - guided waves KW - explosions KW - statistical analysis KW - Montana KW - identification KW - classification KW - Utah KW - seismic waves KW - earthquakes KW - accuracy KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753852825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NATO+ASI+Series.+Series+E%3A+Applied+Sciences&rft.atitle=A+review+of+broadband+regional+discrimination+studies+of+NTS+explosions+and+Western+U.S.+earthquakes&rft.au=Taylor%2C+Steven+R&rft.aulast=Taylor&rft.aufirst=Steven&rft.date=1996-01-01&rft.volume=303&rft.issue=&rft.spage=755&rft.isbn=0792338111&rft.btitle=&rft.title=NATO+ASI+Series.+Series+E%3A+Applied+Sciences&rft.issn=0168132X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - NATO conference on Monitoring a Comprehensive Test Ban Treaty N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 26 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NASEDC N1 - SubjectsTermNotLitGenreText - accuracy; body waves; broad-band spectra; California; classification; earthquakes; elastic waves; errors; explosions; frequency; geologic hazards; guided waves; Idaho; identification; Lg-waves; mining; monitoring; Montana; multivariate analysis; Nevada; Nevada Test Site; nuclear explosions; P-waves; reliability; rock bursts; seismic waves; seismograms; statistical analysis; surface waves; theoretical studies; underground mining; United States; Utah; Washington; Western U.S. ER - TY - JOUR T1 - The dynamics of off-axis plume-ridge interaction in the uppermost mantle AN - 52868282; 1996-027783 AB - Two decades of geochemical and geophysical observations have led to the plume channel model whereby buoyant, off-axis mantle plumes feed and interact with diverging plates at mid-ocean ridge axes which act as sinks of upper mantle material. Here we present results from two-dimensional (2-D) numerical experiments which incorporate the essential physics and fluid dynamic aspects of the plume-ridge-upper mantle system in order to test the feasibility of this plume-ridge interaction model. Specifically, experiments test the relative importance of physical effects such as strong viscosity variations and thermal and chemical buoyancy forcing in plume-ridge dynamics. Results indicate that both transient and steady-state connections may be established between off-axis plumes and ridges for a range of realistic mantle conditions. The presence of a strongly sloping rheological boundary layer (RBL) is a necessary condition for long-term communication between an off-axis buoyant upwelling and a spreading ridge. The flux of buoyant material to the ridge is also shown to increase with increasing plume-to-mantle density contrast, decreasing plume viscosity and smaller plume-ridge separation distances. Plume-ridge interaction regimes are defined based on the competing effects of plate-driven and buoyancy-driven flow. Thermal erosion of the viscous lithosphere strongly inhibits long-term plume-ridge interaction by enhancing the plates ability to deflect the plume, both head and conduit, away from the ridge axis. JF - Earth and Planetary Science Letters AU - Kincaid, C AU - Schilling, J G AU - Gable, C Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 29 EP - 43 PB - Elsevier, Amsterdam VL - 137 IS - 1-4 SN - 0012-821X, 0012-821X KW - upper mantle KW - plate divergence KW - numerical models KW - mechanism KW - mantle KW - fluid dynamics KW - buoyancy KW - geodynamics KW - plate tectonics KW - viscosity KW - rheology KW - sea-floor spreading KW - spreading centers KW - mantle plumes KW - mid-ocean ridges KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52868282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Review+for+the+Sociology+of+Sport&rft.atitle=A+Comparison+of+Selected+%27Serious%27+and+%27Popular%27+British%2C+Canadian%2C+and+United+States+Newspaper+Coverage+of+Female+and+Male+Athletes+Competing+in+the+Centennial+Olympic+Games%3A+Did+Female+Athletes+Receive+Equitable+Coverage+in+the+%27Games+of+the+Women%27%3F&rft.au=Vincent%2C+John%3BImwold%2C+Charles%3BMasemann%2C+Vandra%3BJohnson%2C+James+T&rft.aulast=Vincent&rft.aufirst=John&rft.date=2002-09-01&rft.volume=37&rft.issue=3-4&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=International+Review+for+the+Sociology+of+Sport&rft.issn=10126902&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1996-01-01 N1 - Number of references - 41 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - buoyancy; fluid dynamics; geodynamics; mantle; mantle plumes; mechanism; mid-ocean ridges; numerical models; plate divergence; plate tectonics; rheology; sea-floor spreading; spreading centers; upper mantle; viscosity DO - http://dx.doi.org/10.1016/0012-821X(95)00201-M ER - TY - JOUR T1 - Hydrothermal alteration mineralogy of SOH drill holes, Kilauea East Rift Zone geothermal area, Hawaii AN - 52823739; 1996-054222 JF - Open-File Report - U. S. Geological Survey AU - Bargar, Keith E AU - Keith, Terry E C AU - Trusdell, Frank A AU - Evans, S Rene AU - Sykes, Martha L Y1 - 1996 PY - 1996 DA - 1996 SP - 75 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - thallophytes KW - silicates KW - sea water KW - Hawaii Island KW - volcanic rocks KW - glasses KW - igneous rocks KW - metasomatism KW - cores KW - temperature KW - mineral composition KW - inclusions KW - basalts KW - East Rift Zone KW - zeolite group KW - mineralization KW - hydrothermal alteration KW - framework silicates KW - Kilauea KW - USGS KW - geochemistry KW - meteoric water KW - Plantae KW - sulfates KW - Hawaii County Hawaii KW - Hawaii KW - East Pacific Ocean Islands KW - hydrochemistry KW - clay minerals KW - volcanic glass KW - paleoenvironment KW - boreholes KW - bacteria KW - Scientific Observation Holes KW - Oceania KW - sheet silicates KW - fluid inclusions KW - calcium silicate KW - Polynesia KW - sulfides KW - carbonates KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52823739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bargar%2C+Keith+E%3BKeith%2C+Terry+E+C%3BTrusdell%2C+Frank+A%3BEvans%2C+S+Rene%3BSykes%2C+Martha+L&rft.aulast=Bargar&rft.aufirst=Keith&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hydrothermal+alteration+mineralogy+of+SOH+drill+holes%2C+Kilauea+East+Rift+Zone+geothermal+area%2C+Hawaii&rft.title=Hydrothermal+alteration+mineralogy+of+SOH+drill+holes%2C+Kilauea+East+Rift+Zone+geothermal+area%2C+Hawaii&rft.issn=01961497&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 65 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. sect., 6 tables, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - bacteria; basalts; boreholes; calcium silicate; carbonates; clay minerals; cores; East Pacific Ocean Islands; East Rift Zone; fluid inclusions; framework silicates; geochemistry; glasses; Hawaii; Hawaii County Hawaii; Hawaii Island; hydrochemistry; hydrothermal alteration; igneous rocks; inclusions; Kilauea; metasomatism; meteoric water; mineral composition; mineralization; Oceania; paleoenvironment; Plantae; Polynesia; Scientific Observation Holes; sea water; sheet silicates; silicates; sulfates; sulfides; temperature; thallophytes; United States; USGS; volcanic glass; volcanic rocks; zeolite group ER - TY - JOUR T1 - Preliminary LIBS analysis of Yucca Mountain manganese oxide minerals AN - 52820332; 1996-051902 AB - The licensing and performance of a potential repository at Yucca Mountain will require the characterization of radionuclide sorptive capacity of the host rock, which in turn calls for hundreds of analyses based on extensive sampling or in situ measurements. A rapid method specifically for characterizing the manganese oxide minerals occurring heterogeneously throughout the Yucca Mountain block as fracture surface coatings is needed. Our unique solution is a laser-induced breakdown spectroscopy (LIBS) surface-analysis technique that is usable in the field to produce high-resolution atomic emission spectra. In tests with manganese oxide minerals and fracture surface coatings from a few Yucca Mountain core samples, we used four spectral bands to show that qualitative measurement of all constituent elements except K and Na (in the presence of Mn) is possible with LIBS. Detailed calibration of final hardware will make the system quantitative. JF - LA - Los Alamos Scientific Laboratory AU - Blacic, J AU - Pettit, D AU - Cremers, D Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 67 PB - Los Alamos Scientific Laboratory, Los Alamos, NM SN - 0362-1774, 0362-1774 KW - United States KW - sorption KW - volcanic rocks KW - laser methods KW - site exploration KW - igneous rocks KW - waste disposal sites KW - calibration KW - analysis KW - manganese KW - radioactive waste KW - emission spectra KW - manganese oxides KW - chemical properties KW - trend-surface analysis KW - oxides KW - tuff KW - spectra KW - Yucca Mountain KW - Nevada KW - high-level waste KW - host rocks KW - statistical analysis KW - Nye County Nevada KW - pyroclastics KW - metals KW - waste disposal KW - underground disposal KW - instruments KW - 30:Engineering geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52820332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Blacic%2C+J%3BPettit%2C+D%3BCremers%2C+D&rft.aulast=Blacic&rft.aufirst=J&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Preliminary+LIBS+analysis+of+Yucca+Mountain+manganese+oxide+minerals&rft.title=Preliminary+LIBS+analysis+of+Yucca+Mountain+manganese+oxide+minerals&rft.issn=03621774&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1996-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96004207NEG, Springfield, VA, United States N1 - PubXState - NM N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 N1 - CODEN - XSLRAB N1 - SubjectsTermNotLitGenreText - analysis; calibration; chemical properties; emission spectra; high-level waste; host rocks; igneous rocks; instruments; laser methods; manganese; manganese oxides; metals; Nevada; Nye County Nevada; oxides; pyroclastics; radioactive waste; site exploration; sorption; spectra; statistical analysis; trend-surface analysis; tuff; underground disposal; United States; volcanic rocks; waste disposal; waste disposal sites; Yucca Mountain ER - TY - RPRT T1 - UWC geothermal resource exploration AN - 52758437; 1997-017288 AB - A program was developed to explore the strength of the geothermal and hot dry rock (HDR) resource at the Montezuma Hot Springs at the United World College (UWC). The purpose of the UWC #1 well is to obtain hydrologic, geologic, and temperature information for ongoing geothermal evaluation of the Montezuma Hot Springs area. If sufficient fluids are encountered, the hole will be cased with a 4 1/2 inch production casing and re-permitted as a geothermal low-temperature well. If no fluid is encountered, the well will be abandoned per Oil Conservation Division regulation. The objectives of the exploration are to evaluate the resource potential to provide space heating for the entire campus of the United World College, determine the effect of a well on the Hot Springs outflow, accurately measure the UWC heating loads versus time, evaluate the potential to support local thermal industry development, assess the feasibility of HDR development, and create an educational program from the collection of data derived from the research effort. JF - UWC geothermal resource exploration Y1 - 1996 PY - 1996 DA - 1996 SP - 142 VL - LA-SUB-96-62 KW - geothermal energy KW - geothermal systems KW - low-level geothermal energy KW - heat flow KW - low temperature KW - springs KW - hot dry rocks KW - Montezuma Hot Springs KW - hot springs KW - thermal waters KW - temperature KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52758437?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=UWC+geothermal+resource+exploration&rft.title=UWC+geothermal+resource+exploration&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1997-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96009516NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Erosion and deposition on the Pajarito Plateau, New Mexico, and implications for geomorphic responses to late Quaternary climatic changes AN - 52730886; 1997-031828 AB - The Pajarito Plateau of northern New Mexico contains a rich and diverse record of late Quaternary landscape changes in a variety of geomorphic settings that include gently-sloping mesa tops, steep canyon walls, and canyon bottoms. A broad range of investigations during the past decade, motivated by environmental and seismic hazard concerns, have resulted in examination of the characteristics, stratigraphy, and age of sediments and soils at numerous locations throughout the Plateau. In this paper, we first summarize some of the results of recent and ongoing work on late Quaternary deposits on the Pajarito Plateau, illustrating both the complexity of the geomorphic record and some common elements that have been observed in multiple locations. We then use these observations, in combination with other work in the Southwest, to make some inferences about the local geomorphic response to regional climatic changes. The work discussed in this paper suggests a strong relation between regional climatic changes and local geomorphic history, and provides a framework for considering relations between modem processes, the record of past landscape changes, and future erosion and deposition on the Plateau and in surrounding areas. JF - Erosion and deposition on the Pajarito Plateau, New Mexico, and implications for geomorphic responses to late Quaternary climatic changes AU - Reneau, S L AU - McDonald, E V AU - Gardner, J N AU - Longmire, P A AU - Kolbe, T R Y1 - 1996 PY - 1996 DA - 1996 SP - 29 VL - LA-UR-96-582 KW - United States KW - soils KW - climatic controls KW - Plantae KW - Quaternary KW - isotopes KW - erosion KW - northern New Mexico KW - landform evolution KW - New Mexico KW - Cenozoic KW - radioactive isotopes KW - neotectonics KW - carbon KW - climate effects KW - tectonics KW - depositional environment KW - C-14 KW - soil erosion KW - El Pajarito Plateau KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52730886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Reneau%2C+S+L%3BMcDonald%2C+E+V%3BGardner%2C+J+N%3BLongmire%2C+P+A%3BKolbe%2C+T+R&rft.aulast=Reneau&rft.aufirst=S&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Erosion+and+deposition+on+the+Pajarito+Plateau%2C+New+Mexico%2C+and+implications+for+geomorphic+responses+to+late+Quaternary+climatic+changes&rft.title=Erosion+and+deposition+on+the+Pajarito+Plateau%2C+New+Mexico%2C+and+implications+for+geomorphic+responses+to+late+Quaternary+climatic+changes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1997-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96009188NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Automated grid generation from models of complex geologic structure and stratigraphy AN - 52723407; 1997-032479 AB - We have developed a tool, GEOMESH, for generating finite element grids that maintain the geometric integrity of input volumes, surfaces, and geologic data and produce an optimal (Delaunay) tetrahedral grid that can be used for flow and transport computations. GEOMESH also satisfies the constraint that the geometric coupling coefficients of the grid are positive for all elements. GEOMESH generates grids for two dimensional cross sections, three dimensional regional models, represents faults and fractures, and has the capability of including finer grids representing tunnels and well bores into grids. GEOMESH also permits adaptive grid refinement in three dimensions. The tools to glue, merge and insert grids together demonstrate how complex grids can be built from simpler pieces. The resulting grid can be utilized by unstructured finite element or integrated finite difference computational physics codes. JF - Automated grid generation from models of complex geologic structure and stratigraphy AU - Gable, C AU - Trease, H AU - Cherry, T Y1 - 1996 PY - 1996 DA - 1996 SP - 10 VL - LA-UR-96-1083 | CONF-960164-3 KW - GEOMESH KW - three-dimensional models KW - spatial data KW - statistical analysis KW - data processing KW - porous materials KW - fluid dynamics KW - simulation KW - ground water KW - aquifers KW - models KW - computer programs KW - finite element analysis KW - physical properties KW - geographic information systems KW - transport KW - information systems KW - tectonics KW - mobility KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52723407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Gable%2C+C%3BTrease%2C+H%3BCherry%2C+T&rft.aulast=Gable&rft.aufirst=C&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Automated+grid+generation+from+models+of+complex+geologic+structure+and+stratigraphy&rft.title=Automated+grid+generation+from+models+of+complex+geologic+structure+and+stratigraphy&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1997-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96009768NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 3rd international conference/workshop on Integrating GIS and environmental modeling, Santa Fe, NM, Jan. 21-25, 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Remote sensing characterization of selected waste sites at the Los Alamos National Laboratory AN - 52719989; 1997-037490 JF - Environmental Geosciences AU - David, N A AU - Ginsberg, I W AU - van Eeckhout, E M AU - Balick, L K AU - Lewis, A A AU - Odenweller, J B AU - Stahl, G A AU - Tyler, W A AU - Weber, R M Y1 - 1996 PY - 1996 DA - 1996 SP - 1 EP - 10 PB - Blackwell Science, Cambridge, MA VL - 3 IS - 1 SN - 1075-9565, 1075-9565 KW - United States KW - soils KW - hazardous waste KW - digital data KW - imagery KW - monitoring KW - contaminant plumes KW - isotopes KW - pollutants KW - characterization KW - waste disposal sites KW - pollution KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - seepage KW - safety KW - radioactive isotopes KW - thermal analysis data KW - SPOT KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52719989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geosciences&rft.atitle=Remote+sensing+characterization+of+selected+waste+sites+at+the+Los+Alamos+National+Laboratory&rft.au=David%2C+N+A%3BGinsberg%2C+I+W%3Bvan+Eeckhout%2C+E+M%3BBalick%2C+L+K%3BLewis%2C+A+A%3BOdenweller%2C+J+B%3BStahl%2C+G+A%3BTyler%2C+W+A%3BWeber%2C+R+M&rft.aulast=David&rft.aufirst=N&rft.date=1996-01-01&rft.volume=3&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Environmental+Geosciences&rft.issn=10759565&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 15 N1 - PubXState - MA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - characterization; contaminant plumes; digital data; hazardous waste; imagery; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; monitoring; New Mexico; pollutants; pollution; radioactive isotopes; remote sensing; safety; seepage; soils; SPOT; thermal analysis data; United States; waste disposal sites ER - TY - RPRT T1 - Active vibration control of civil structures AN - 52695248; 1997-056568 AB - Active vibration control (AVC) of structural and mechanical systems is one of the rapidly advancing areas of engineering research. The multifaceted nature of AVC covers many disciplines, such as sensors and instrumentation, numerical modeling, experimental mechanics, and advanced power systems. This work encompassed a review of the literature on active control of structures focusing both on active control hardware and on control algorithms, a design of an isolation systems using magneto-rheological fluid-filled (MRF) dampers and numerical simulations to study the enhanced vibration mitigation effects of this technology. JF - Active vibration control of civil structures AU - Farrar, C AU - Baker, W AU - Fales, J AU - Shevitz, D Y1 - 1996 PY - 1996 DA - 1996 SP - 9 VL - LA-UR-96-3461 KW - numerical models KW - engineering properties KW - damage KW - simulation KW - preventive measures KW - rock mechanics KW - soil-structure interface KW - safety KW - oscillations KW - ground motion KW - buildings KW - aseismic design KW - algorithms KW - earthquakes KW - design KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52695248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Farrar%2C+C%3BBaker%2C+W%3BFales%2C+J%3BShevitz%2C+D&rft.aulast=Farrar&rft.aufirst=C&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Active+vibration+control+of+civil+structures&rft.title=Active+vibration+control+of+civil+structures&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1997-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97000537NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Regional location in western China AN - 52692176; 1997-052278 AB - Accurately locating seismic events in western China using only regional seismic stations is a challenge. Not only is the number of seismic stations available for locating events small, but most stations available to researchers are often over 10 degrees distant. Here the authors describe the relocation, using regional stations, of both nuclear and earthquake sources near the Lop Nor test site in western China. For such relocations, they used the Earthquake Data Reports provided by the US Geological Survey (USGS) for the reported travel times. Such reports provide a listing of all phases reported to the USGS from stations throughout the world, including many stations in the People's Republic of China. LocSAT was used as the location code. The authors systematically relocated each event in this study several times, using fewer and fewer stations at reach relocation, with the farther stations being eliminated at each step. They found that location accuracy, judged by comparing solutions from few stations to the solution provided using all available stations, remained good typically until fewer than seven stations remained. With a good station distribution, location accuracy remained surprisingly good (within 7 km) using as few as 3 stations. Because these relocations were computed without good station corrections and without source-specific station corrections (that is, path corrections), they believe that such regional locations can be substantially improved, largely using static station corrections and source-specific station corrections, at least in the Lop nor area, where sources have known locations. Elsewhere in China, one must rely upon known locations of regionally-recorded explosions. Locating such sources is clearly one of the major problems to be overcome before one can provide event locations with any assurance from regional stations. JF - Regional location in western China AU - Cogbill, A H AU - Steck, L K Y1 - 1996 PY - 1996 DA - 1996 SP - 12 VL - LA-UR-96-2328 | CONF-9609185-12 KW - monitoring KW - Far East KW - pattern recognition KW - explosions KW - reliability KW - seismic sources KW - detection KW - seismicity KW - western China KW - nuclear explosions KW - Asia KW - earthquakes KW - China KW - arrays KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52692176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Cogbill%2C+A+H%3BSteck%2C+L+K&rft.aulast=Cogbill&rft.aufirst=A&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Regional+location+in+western+China&rft.title=Regional+location+in+western+China&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1997-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96013979NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 18th Seismic research symposium on Monitoring a comprehensive test ban treaty (CTBT), Annapolis, MD, Sept. 4-6, 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Fast 3-D prestack depth migration with a parallel PSPI algorithm AN - 52685473; 1997-066869 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Roberts, Peter M AU - Alde, Douglas M AU - House, Leigh S AU - Higginbotham, Joseph H AU - Sukup, Dwight V AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 1021 EP - 1024 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 66 SN - 1052-3812, 1052-3812 KW - Phase-Shift-Plus-Interpolation code KW - three-dimensional models KW - Fourier analysis KW - parallel processing KW - geophysical methods KW - data processing KW - PSPI code KW - algorithms KW - seismic migration KW - seismic methods KW - prestack migration KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52685473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Fast+3-D+prestack+depth+migration+with+a+parallel+PSPI+algorithm&rft.au=Roberts%2C+Peter+M%3BAlde%2C+Douglas+M%3BHouse%2C+Leigh+S%3BHigginbotham%2C+Joseph+H%3BSukup%2C+Dwight+V%3BAnonymous&rft.aulast=Roberts&rft.aufirst=Peter&rft.date=1996-01-01&rft.volume=66&rft.issue=&rft.spage=1021&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 66th annual international meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 2 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Volume I N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; data processing; Fourier analysis; geophysical methods; parallel processing; Phase-Shift-Plus-Interpolation code; prestack migration; PSPI code; seismic methods; seismic migration; three-dimensional models ER - TY - JOUR T1 - Wavelet compression for 3D depth migration AN - 52680411; 1997-070150 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Bradley, Jonathan AU - Fei, Tong AU - Hildebrand, Steve AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 1627 EP - 1629 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 66 SN - 1052-3812, 1052-3812 KW - salt tectonics KW - geophysical surveys KW - three-dimensional models KW - data handling KW - geophysical methods KW - data processing KW - reflection methods KW - seismic migration KW - Kirchhoff integral KW - Gulf of Mexico KW - depth KW - seismic methods KW - wavelets KW - surveys KW - tectonics KW - algorithms KW - North Atlantic KW - Atlantic Ocean KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52680411?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Wavelet+compression+for+3D+depth+migration&rft.au=Bradley%2C+Jonathan%3BFei%2C+Tong%3BHildebrand%2C+Steve%3BAnonymous&rft.aulast=Bradley&rft.aufirst=Jonathan&rft.date=1996-01-01&rft.volume=66&rft.issue=&rft.spage=1627&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 66th annual international meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 6 N1 - PubXState - OK N1 - Document feature - illus. N1 - SuppNotes - Volume II N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; Atlantic Ocean; data handling; data processing; depth; geophysical methods; geophysical surveys; Gulf of Mexico; Kirchhoff integral; North Atlantic; reflection methods; salt tectonics; seismic methods; seismic migration; surveys; tectonics; three-dimensional models; wavelets ER - TY - JOUR T1 - Retrievable 1/2-inch OD borehole seismic package AN - 52679790; 1997-066564 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Albright, James N AU - Dreesen, Donald AU - Harben, Philip AU - Woo, Daniel M AU - Tan, Henry AU - Fairbanks, Thomas D AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 114 EP - 117 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 66 SN - 1052-3812, 1052-3812 KW - geophones KW - boreholes KW - well-logging KW - testing KW - seismic logging KW - instruments KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52679790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Retrievable+1%2F2-inch+OD+borehole+seismic+package&rft.au=Albright%2C+James+N%3BDreesen%2C+Donald%3BHarben%2C+Philip%3BWoo%2C+Daniel+M%3BTan%2C+Henry%3BFairbanks%2C+Thomas+D%3BAnonymous&rft.aulast=Albright&rft.aufirst=James&rft.date=1996-01-01&rft.volume=66&rft.issue=&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 66th annual international meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - OK N1 - Document feature - illus. N1 - SuppNotes - Volume I N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boreholes; geophones; instruments; seismic logging; testing; well-logging ER - TY - JOUR T1 - Reservoir fracture mapping using microearthquakes; Austin Chalk, Giddings Field, TX and 76 Field, Clinton Co., Kentucky AN - 52679284; 1997-070245 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Phillips, W S AU - Rutledge, J T AU - Fairbanks, T D AU - Gardner, T L AU - Miller, M E AU - Schuessler, B K AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 1931 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 66 SN - 1052-3812, 1052-3812 KW - United States KW - petroleum engineering KW - Austin Chalk KW - Cretaceous KW - petroleum KW - Lee County Texas KW - reverse faults KW - production KW - Upper Cretaceous KW - oil and gas fields KW - southern Texas KW - Seventy-Six Field KW - low-angle faults KW - Clinton County Kentucky KW - faults KW - southern Kentucky KW - seismology KW - Texas KW - Gulf Coastal Plain KW - Mesozoic KW - Giddings Field KW - naturally fractured reservoirs KW - Kentucky KW - Gulfian KW - reservoir properties KW - microearthquakes KW - earthquakes KW - 19:Seismology KW - 29A:Economic geology, geology of energy sources KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52679284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Reservoir+fracture+mapping+using+microearthquakes%3B+Austin+Chalk%2C+Giddings+Field%2C+TX+and+76+Field%2C+Clinton+Co.%2C+Kentucky&rft.au=Phillips%2C+W+S%3BRutledge%2C+J+T%3BFairbanks%2C+T+D%3BGardner%2C+T+L%3BMiller%2C+M+E%3BSchuessler%2C+B+K%3BAnonymous&rft.aulast=Phillips&rft.aufirst=W&rft.date=1996-01-01&rft.volume=66&rft.issue=&rft.spage=1931&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 66th annual international meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - OK N1 - SuppNotes - Volume II N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Austin Chalk; Clinton County Kentucky; Cretaceous; earthquakes; faults; Giddings Field; Gulf Coastal Plain; Gulfian; Kentucky; Lee County Texas; low-angle faults; Mesozoic; microearthquakes; naturally fractured reservoirs; oil and gas fields; petroleum; petroleum engineering; production; reservoir properties; reverse faults; seismology; Seventy-Six Field; southern Kentucky; southern Texas; Texas; United States; Upper Cretaceous ER - TY - JOUR T1 - Depth migration artifacts associated with first-arrival traveltime AN - 52678088; 1997-066734 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Tong, Fei AU - Fehler, Michael C AU - Hildebrand, Steve T AU - Chilcoat, Steven R AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 499 EP - 502 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 66 SN - 1052-3812, 1052-3812 KW - traveltime KW - geophysical methods KW - elastic waves KW - seismic waves KW - arrival time KW - seismic migration KW - Kirchhoff integral KW - layered materials KW - depth KW - two-dimensional models KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52678088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Depth+migration+artifacts+associated+with+first-arrival+traveltime&rft.au=Tong%2C+Fei%3BFehler%2C+Michael+C%3BHildebrand%2C+Steve+T%3BChilcoat%2C+Steven+R%3BAnonymous&rft.aulast=Tong&rft.aufirst=Fei&rft.date=1996-01-01&rft.volume=66&rft.issue=&rft.spage=499&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 66th annual international meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 7 N1 - PubXState - OK N1 - Document feature - illus. incl. sects. N1 - SuppNotes - Volume I N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arrival time; depth; elastic waves; geophysical methods; Kirchhoff integral; layered materials; seismic methods; seismic migration; seismic waves; traveltime; two-dimensional models ER - TY - JOUR T1 - Microearthquakes induced by a hydraulic injection in sedimentary rock, East Texas AN - 52677605; 1997-066563 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - House, Leigh S AU - Flores, Roderick AU - Withers, Robert AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 110 EP - 113 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 66 SN - 1052-3812, 1052-3812 KW - United States KW - geophones KW - well-logging KW - seismic logging KW - feasibility studies KW - rock mechanics KW - Jasper County Texas KW - Cenozoic KW - fluid injection KW - sedimentary rocks KW - seismicity KW - solid waste KW - induced earthquakes KW - hydraulic fracturing KW - experimental studies KW - monitoring KW - seismology KW - injection KW - Frio Formation KW - Texas KW - Paleogene KW - Gulf Coastal Plain KW - Tertiary KW - southeastern Texas KW - waste disposal KW - microearthquakes KW - earthquakes KW - Oligocene KW - 30:Engineering geology KW - 19:Seismology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52677605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.atitle=Microearthquakes+induced+by+a+hydraulic+injection+in+sedimentary+rock%2C+East+Texas&rft.au=House%2C+Leigh+S%3BFlores%2C+Roderick%3BWithers%2C+Robert%3BAnonymous&rft.aulast=House&rft.aufirst=Leigh&rft.date=1996-01-01&rft.volume=66&rft.issue=&rft.spage=110&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/ L2 - http://www.seg.org/ LA - English DB - GeoRef N1 - Conference title - Society of Exploration Geophysicists, 66th annual international meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 3 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Volume I N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cenozoic; earthquakes; experimental studies; feasibility studies; fluid injection; Frio Formation; geophones; Gulf Coastal Plain; hydraulic fracturing; induced earthquakes; injection; Jasper County Texas; microearthquakes; monitoring; Oligocene; Paleogene; rock mechanics; sedimentary rocks; seismic logging; seismicity; seismology; solid waste; southeastern Texas; Tertiary; Texas; United States; waste disposal; well-logging ER - TY - RPRT T1 - Remediation of uranium-contaminated soil using the segmented gate system and containerized vat leaching techniques; a cost effectiveness study AN - 52653538; 1998-003087 AB - Because it is difficult to characterize heterogeneously contaminated soils in detail and to excavate such soils precisely using heavy equipment, it is common for large quantities of uncontaminated soil to be removed during excavation of contaminated sites. The baseline approach for the remediation of soils containing radioactive waste is excavation, pretreatment, containerization, and disposal at a federally permitted landfill. ThermoNuclean's Segmented Gate System (SGS) removes only the radioactively contaminated soil, in turn greatly reducing the volume of soils that requires disposal. After processing using the SGS, the fraction of contaminated soil is processed using the containerized vat leaching (CVL) system developed at LANL. Uranium is leached out of the soil in solution. The uranium is recovered with an ion exchange resin, leaving only a small volume of liquid low-level waste requiring disposal. The reclaimed soil can be returned to its original location after treatment with CVL. JF - Remediation of uranium-contaminated soil using the segmented gate system and containerized vat leaching techniques; a cost effectiveness study AU - Cummings, M AU - Booth, S R Y1 - 1996 PY - 1996 DA - 1996 SP - 10 VL - LA-UR-96-2663 KW - soils KW - pollutants KW - plutonium KW - landfills KW - soil treatment KW - pollution KW - techniques KW - migration of elements KW - chemical waste KW - remediation KW - radioactive waste KW - waste management KW - metals KW - industrial waste KW - uranium KW - ion exchange KW - waste disposal KW - leaching KW - low-level waste KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52653538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Cummings%2C+M%3BBooth%2C+S+R&rft.aulast=Cummings&rft.aufirst=M&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Remediation+of+uranium-contaminated+soil+using+the+segmented+gate+system+and+containerized+vat+leaching+techniques%3B+a+cost+effectiveness+study&rft.title=Remediation+of+uranium-contaminated+soil+using+the+segmented+gate+system+and+containerized+vat+leaching+techniques%3B+a+cost+effectiveness+study&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96014586NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Terrestrial factors that influence production rates AN - 52426266; 1999-071660 JF - Radiocarbon AU - Klein, J AU - Gosse, John C A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 161 EP - 162 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - genesis KW - controls KW - radioactive isotopes KW - isotopes KW - cosmogenic elements KW - rates KW - calibration KW - magnetic field KW - variations KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52426266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Terrestrial+factors+that+influence+production+rates&rft.au=Klein%2C+J%3BGosse%2C+John+C&rft.aulast=Klein&rft.aufirst=J&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - calibration; controls; cosmogenic elements; genesis; isotopes; magnetic field; radioactive isotopes; rates; variations ER - TY - JOUR T1 - The (super 21) Ne production rate in a Si target at mountain altitudes AN - 52426219; 1999-071654 JF - Radiocarbon AU - Graf, T AU - Marti, K AU - Wiens, R C A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 155 EP - 156 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - United States KW - Ne-21 KW - experimental studies KW - isotopes KW - Mount Evans KW - cosmogenic elements KW - rates KW - calibration KW - silicon KW - exposure age KW - stable isotopes KW - genesis KW - geochronology KW - noble gases KW - neon KW - Colorado KW - glass materials KW - 03:Geochronology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52426219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=The+%28super+21%29+Ne+production+rate+in+a+Si+target+at+mountain+altitudes&rft.au=Graf%2C+T%3BMarti%2C+K%3BWiens%2C+R+C&rft.aulast=Graf&rft.aufirst=T&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - calibration; Colorado; cosmogenic elements; experimental studies; exposure age; genesis; geochronology; glass materials; isotopes; Mount Evans; Ne-21; neon; noble gases; rates; silicon; stable isotopes; United States ER - TY - JOUR T1 - Determination of (super 36) Cl production rates from the deglaciation history of Whidbey and Fidalgo islands, Washington AN - 52425251; 1999-071672 JF - Radiocarbon AU - Swanson, Terry A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 172 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - United States KW - glaciation KW - isotopes KW - halogens KW - calibration KW - production KW - exposure age KW - deglaciation KW - upper Pleistocene KW - Cenozoic KW - upper Weichselian KW - radioactive isotopes KW - Weichselian KW - carbon KW - Younger Dryas KW - chlorine KW - Washington KW - Quaternary KW - Cl-36 KW - rates KW - Whidbey Island KW - Island County Washington KW - Pleistocene KW - glacial geology KW - Fidalgo Island KW - C-14 KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52425251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Determination+of+%28super+36%29+Cl+production+rates+from+the+deglaciation+history+of+Whidbey+and+Fidalgo+islands%2C+Washington&rft.au=Swanson%2C+Terry&rft.aulast=Swanson&rft.aufirst=Terry&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=172&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - C-14; calibration; carbon; Cenozoic; chlorine; Cl-36; deglaciation; exposure age; Fidalgo Island; glacial geology; glaciation; halogens; Island County Washington; isotopes; Pleistocene; production; Quaternary; radioactive isotopes; rates; United States; upper Pleistocene; upper Weichselian; Washington; Weichselian; Whidbey Island; Younger Dryas ER - TY - JOUR T1 - Recent advances in determining absolute and relative paleointensity variations of the geomagnetic field AN - 52425199; 1999-071669 JF - Radiocarbon AU - Verosub, Kenneth L A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 173 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - methods KW - Quaternary KW - isotopes KW - secular variations KW - cosmogenic elements KW - rates KW - paleomagnetism KW - production KW - magnetic field KW - Cenozoic KW - radioactive isotopes KW - magnetic intensity KW - 18:Solid-earth geophysics KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52425199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Recent+advances+in+determining+absolute+and+relative+paleointensity+variations+of+the+geomagnetic+field&rft.au=Verosub%2C+Kenneth+L&rft.aulast=Verosub&rft.aufirst=Kenneth&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Cenozoic; cosmogenic elements; isotopes; magnetic field; magnetic intensity; methods; paleomagnetism; production; Quaternary; radioactive isotopes; rates; secular variations ER - TY - JOUR T1 - COSMO-CALIBRATE; a program for calibrating cosmogenic exposure ages AN - 52425158; 1999-071651 JF - Radiocarbon AU - Clapp, Erik AU - Bierman, Paul R A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 151 EP - 152 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - methods KW - computer programs KW - radioactive isotopes KW - numerical models KW - COSMO-CALIBRATE KW - isotopes KW - data processing KW - cosmogenic elements KW - calibration KW - exposure age KW - accuracy KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52425158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=COSMO-CALIBRATE%3B+a+program+for+calibrating+cosmogenic+exposure+ages&rft.au=Clapp%2C+Erik%3BBierman%2C+Paul+R&rft.aulast=Clapp&rft.aufirst=Erik&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - accuracy; calibration; computer programs; COSMO-CALIBRATE; cosmogenic elements; data processing; exposure age; isotopes; methods; numerical models; radioactive isotopes ER - TY - JOUR T1 - A comparison of (super 10) Be, (super 26) Al, (super 36) Cl in boulders from a Younger Dryas moraine, Julier Pass, Graubuenden, Switzerland AN - 52424785; 1999-071658 JF - Radiocarbon AU - Ivy-Ochs, Susan D AU - Schluechter, Christian AU - Kubik, Peter W AU - Synal, Hans-Arno AU - Beer, Juerg A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 159 EP - 160 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - isotopes KW - halogens KW - Europe KW - exposure age KW - Switzerland KW - upper Pleistocene KW - Cenozoic KW - upper Weichselian KW - Al-26 KW - radioactive isotopes KW - geochronology KW - Weichselian KW - Central Europe KW - aluminum KW - sediments KW - moraines KW - Younger Dryas KW - Julier Pass KW - Graubunden Switzerland KW - chlorine KW - alkaline earth metals KW - boulders KW - Quaternary KW - Be-10 KW - clastic sediments KW - Cl-36 KW - metals KW - Pleistocene KW - beryllium KW - 03:Geochronology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52424785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=A+comparison+of+%28super+10%29+Be%2C+%28super+26%29+Al%2C+%28super+36%29+Cl+in+boulders+from+a+Younger+Dryas+moraine%2C+Julier+Pass%2C+Graubuenden%2C+Switzerland&rft.au=Ivy-Ochs%2C+Susan+D%3BSchluechter%2C+Christian%3BKubik%2C+Peter+W%3BSynal%2C+Hans-Arno%3BBeer%2C+Juerg&rft.aulast=Ivy-Ochs&rft.aufirst=Susan&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 4 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Be-10; beryllium; boulders; Cenozoic; Central Europe; chlorine; Cl-36; clastic sediments; Europe; exposure age; geochronology; Graubunden Switzerland; halogens; isotopes; Julier Pass; metals; moraines; Pleistocene; Quaternary; radioactive isotopes; sediments; Switzerland; upper Pleistocene; upper Weichselian; Weichselian; Younger Dryas ER - TY - JOUR T1 - (super 10) Be and (super 26) Al production rates and a revised glacial chronology for the Sierra Nevada AN - 52424738; 1999-071652 JF - Radiocarbon AU - Clark, Douglas H AU - Bierman, Paul R AU - Gillespie, Alan R A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 152 EP - 153 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - Sierra Nevada KW - glaciation KW - isotopes KW - mass spectra KW - exposure age KW - deglaciation KW - upper Pleistocene KW - Cenozoic KW - accelerator mass spectra KW - revision KW - Al-26 KW - radioactive isotopes KW - dates KW - carbon KW - aluminum KW - sediments KW - absolute age KW - spectra KW - North America KW - alkaline earth metals KW - Quaternary KW - Be-10 KW - rates KW - metals KW - Pleistocene KW - glacial geology KW - C-14 KW - beryllium KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52424738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=%28super+10%29+Be+and+%28super+26%29+Al+production+rates+and+a+revised+glacial+chronology+for+the+Sierra+Nevada&rft.au=Clark%2C+Douglas+H%3BBierman%2C+Paul+R%3BGillespie%2C+Alan+R&rft.aulast=Clark&rft.aufirst=Douglas&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=152&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 2 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - absolute age; accelerator mass spectra; Al-26; alkaline earth metals; aluminum; Be-10; beryllium; C-14; carbon; Cenozoic; dates; deglaciation; exposure age; glacial geology; glaciation; isotopes; mass spectra; metals; North America; Pleistocene; Quaternary; radioactive isotopes; rates; revision; sediments; Sierra Nevada; spectra; upper Pleistocene ER - TY - JOUR T1 - Direct examination of terrestrial cosmogenic nuclide production rates of (super 10) Be, (super 3) He and (super 3) H AN - 52424705; 1999-071650 JF - Radiocarbon AU - Brown, Erik T AU - Trull, Thomas W AU - Jean-Baptiste, Philippe AU - Bourles, Didier L AU - Raisbeck, Grant M AU - Yiou, Francoise A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 151 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - alkaline earth metals KW - Be-10 KW - isotopes KW - cosmogenic elements KW - rates KW - tritium KW - He-3 KW - production KW - stable isotopes KW - radioactive isotopes KW - noble gases KW - metals KW - hydrogen KW - helium KW - beryllium KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52424705?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Direct+examination+of+terrestrial+cosmogenic+nuclide+production+rates+of+%28super+10%29+Be%2C+%28super+3%29+He+and+%28super+3%29+H&rft.au=Brown%2C+Erik+T%3BTrull%2C+Thomas+W%3BJean-Baptiste%2C+Philippe%3BBourles%2C+Didier+L%3BRaisbeck%2C+Grant+M%3BYiou%2C+Francoise&rft.aulast=Brown&rft.aufirst=Erik&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Be-10; beryllium; cosmogenic elements; He-3; helium; hydrogen; isotopes; metals; noble gases; production; radioactive isotopes; rates; stable isotopes; tritium ER - TY - JOUR T1 - Refining estimates of (super 10) Be and (super 26) Al production rates AN - 52424634; 1999-071648 JF - Radiocarbon AU - Bierman, Paul R AU - Larsen, Patrick AU - Clapp, Erik AU - Clark, Douglas H A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 149 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - United States KW - methods KW - alkaline earth metals KW - Be-10 KW - isotopes KW - cosmogenic elements KW - rates KW - genesis KW - revision KW - controls KW - Al-26 KW - radioactive isotopes KW - metals KW - aluminum KW - New Jersey KW - beryllium KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52424634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Refining+estimates+of+%28super+10%29+Be+and+%28super+26%29+Al+production+rates&rft.au=Bierman%2C+Paul+R%3BLarsen%2C+Patrick%3BClapp%2C+Erik%3BClark%2C+Douglas+H&rft.aulast=Bierman&rft.aufirst=Paul&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Be-10; beryllium; controls; cosmogenic elements; genesis; isotopes; metals; methods; New Jersey; radioactive isotopes; rates; revision; United States ER - TY - JOUR T1 - Production systematics of cosmogenic nuclides in the Earth AN - 52424231; 1999-071666 JF - Radiocarbon AU - Reedy, Robert C A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 168 EP - 169 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - radioactive isotopes KW - irradiation KW - neutrons KW - isotopes KW - cosmogenic elements KW - rates KW - cosmic rays KW - production KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52424231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Production+systematics+of+cosmogenic+nuclides+in+the+Earth&rft.au=Reedy%2C+Robert+C&rft.aulast=Reedy&rft.aufirst=Robert&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 4 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - cosmic rays; cosmogenic elements; irradiation; isotopes; neutrons; production; radioactive isotopes; rates ER - TY - JOUR T1 - Temporal variations in global atmospheric (super 14) C and its production AN - 52423301; 1999-071668 JF - Radiocarbon AU - Stuiver, Minze A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 171 EP - 172 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - methods KW - Quaternary KW - isotopes KW - atmosphere KW - paleomagnetism KW - calibration KW - production KW - magnetic field KW - variations KW - Cenozoic KW - radioactive isotopes KW - carbon KW - C-14 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Temporal+variations+in+global+atmospheric+%28super+14%29+C+and+its+production&rft.au=Stuiver%2C+Minze&rft.aulast=Stuiver&rft.aufirst=Minze&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - atmosphere; C-14; calibration; carbon; Cenozoic; isotopes; magnetic field; methods; paleomagnetism; production; Quaternary; radioactive isotopes; variations ER - TY - JOUR T1 - Recent and planned research in cosmogenic isotopes at GNS AN - 52423250; 1999-071655 JF - Radiocarbon AU - Graham, Ian J A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 157 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - chlorine KW - alkaline earth metals KW - survey organizations KW - Be-10 KW - isotopes KW - Cl-36 KW - halogens KW - government agencies KW - cosmogenic elements KW - mass spectroscopy KW - current research KW - calibration KW - Al-26 KW - Institute of Geological and Nuclear Sciences KW - radioactive isotopes KW - metals KW - carbon KW - aluminum KW - accelerator mass spectroscopy KW - C-14 KW - spectroscopy KW - beryllium KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Recent+and+planned+research+in+cosmogenic+isotopes+at+GNS&rft.au=Graham%2C+Ian+J&rft.aulast=Graham&rft.aufirst=Ian&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - accelerator mass spectroscopy; Al-26; alkaline earth metals; aluminum; Be-10; beryllium; C-14; calibration; carbon; chlorine; Cl-36; cosmogenic elements; current research; government agencies; halogens; Institute of Geological and Nuclear Sciences; isotopes; mass spectroscopy; metals; radioactive isotopes; spectroscopy; survey organizations ER - TY - JOUR T1 - Monte Carlo simulation of in-situ-produced cosmogenic nuclides AN - 52423198; 1999-071661 JF - Radiocarbon AU - Masarik, Jozef AU - Reedy, Robert C A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 163 EP - 164 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - Ne-21 KW - irradiation KW - isotopes KW - halogens KW - cosmogenic elements KW - He-3 KW - simulation KW - exposure age KW - stable isotopes KW - Al-26 KW - radioactive isotopes KW - noble gases KW - neon KW - carbon KW - aluminum KW - helium KW - chlorine KW - alkaline earth metals KW - in situ KW - Be-10 KW - Monte Carlo analysis KW - Cl-36 KW - statistical analysis KW - rates KW - genesis KW - metals KW - C-14 KW - beryllium KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Monte+Carlo+simulation+of+in-situ-produced+cosmogenic+nuclides&rft.au=Masarik%2C+Jozef%3BReedy%2C+Robert+C&rft.aulast=Masarik&rft.aufirst=Jozef&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Be-10; beryllium; C-14; carbon; chlorine; Cl-36; cosmogenic elements; exposure age; genesis; halogens; He-3; helium; in situ; irradiation; isotopes; metals; Monte Carlo analysis; Ne-21; neon; noble gases; radioactive isotopes; rates; simulation; stable isotopes; statistical analysis ER - TY - JOUR T1 - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth AN - 52423194; 1999-071647 JF - Radiocarbon A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 135 EP - 173 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - radioactive isotopes KW - symposia KW - isotopes KW - secular variations KW - cosmogenic elements KW - rates KW - production KW - bibliography KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Radiocarbon&rft.atitle=Workshop+on+Secular+variations+in+production+rates+of+cosmogenic+nuclides+on+Earth&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - SuppNotes - Individual abstracts are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - bibliography; cosmogenic elements; isotopes; production; radioactive isotopes; rates; secular variations; symposia ER - TY - JOUR T1 - More revealing histories of exposure; the rat urine story AN - 52423193; 1999-071664 JF - Radiocarbon AU - Phillips, Fred M AU - Plummer, Mitchell AU - Flinsch, Montgomery A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 166 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - isotopes KW - halogens KW - cosmogenic elements KW - exposure age KW - magnetic field KW - variations KW - Theria KW - radioactive isotopes KW - geochronology KW - carbon KW - Myomorpha KW - Eutheria KW - chlorine KW - Chordata KW - Cl-36 KW - Mammalia KW - paleomagnetism KW - Cricetidae KW - Neotoma KW - reconstruction KW - magnetic intensity KW - C-14 KW - Vertebrata KW - Rodentia KW - Tetrapoda KW - 03:Geochronology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=More+revealing+histories+of+exposure%3B+the+rat+urine+story&rft.au=Phillips%2C+Fred+M%3BPlummer%2C+Mitchell%3BFlinsch%2C+Montgomery&rft.aulast=Phillips&rft.aufirst=Fred&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=166&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - C-14; carbon; chlorine; Chordata; Cl-36; cosmogenic elements; Cricetidae; Eutheria; exposure age; geochronology; halogens; isotopes; magnetic field; magnetic intensity; Mammalia; Myomorpha; Neotoma; paleomagnetism; radioactive isotopes; reconstruction; Rodentia; Tetrapoda; Theria; variations; Vertebrata ER - TY - JOUR T1 - Cosmic-ray neutrons at ground level; temporal and geodetic variations AN - 52423163; 1999-071663 JF - Radiocarbon AU - O'Brien, Keran A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 165 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - radioactive isotopes KW - neutrons KW - isotopes KW - cosmogenic elements KW - cosmic rays KW - geodetic coordinates KW - geodesy KW - magnetic field KW - variations KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Cosmic-ray+neutrons+at+ground+level%3B+temporal+and+geodetic+variations&rft.au=O%27Brien%2C+Keran&rft.aulast=O%27Brien&rft.aufirst=Keran&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=165&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 3 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - cosmic rays; cosmogenic elements; geodesy; geodetic coordinates; isotopes; magnetic field; neutrons; radioactive isotopes; variations ER - TY - JOUR T1 - Production of (super 14) C and (super 10) Be in the atmosphere and on the Earth's surface AN - 52423160; 1999-071659 JF - Radiocarbon AU - Jull, A J T AU - McHargue, Lanny R AU - Lifton, N A AU - Phillips, W M AU - Quade, J A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 160 EP - 161 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - alkaline earth metals KW - in situ KW - Be-10 KW - isotopes KW - atmosphere KW - calibration KW - erosion rates KW - exposure age KW - genesis KW - radioactive isotopes KW - geochronology KW - metals KW - carbon KW - applications KW - C-14 KW - beryllium KW - 03:Geochronology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Production+of+%28super+14%29+C+and+%28super+10%29+Be+in+the+atmosphere+and+on+the+Earth%27s+surface&rft.au=Jull%2C+A+J+T%3BMcHargue%2C+Lanny+R%3BLifton%2C+N+A%3BPhillips%2C+W+M%3BQuade%2C+J&rft.aulast=Jull&rft.aufirst=A+J&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=160&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 5 N1 - PubXState - AZ N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - alkaline earth metals; applications; atmosphere; Be-10; beryllium; C-14; calibration; carbon; erosion rates; exposure age; genesis; geochronology; in situ; isotopes; metals; radioactive isotopes ER - TY - JOUR T1 - Production rate of in-situ cosmogenic (super 10) Be in quartz at high altitude and mid latitude AN - 52423152; 1999-071653 JF - Radiocarbon AU - Gosse, John C AU - Klein, J A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 154 EP - 155 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - United States KW - isotopes KW - altitude KW - Provo Lake KW - cosmogenic elements KW - calibration KW - exposure age KW - radioactive isotopes KW - geochronology KW - sediments KW - moraines KW - North America KW - alkaline earth metals KW - boulders KW - in situ KW - Be-10 KW - clastic sediments KW - U. S. Rocky Mountains KW - rates KW - glacial features KW - Titcomb Basin KW - time scales KW - genesis KW - Wyoming KW - metals KW - Wind River Range KW - Utah KW - latitude KW - Rocky Mountains KW - beryllium KW - 03:Geochronology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Production+rate+of+in-situ+cosmogenic+%28super+10%29+Be+in+quartz+at+high+altitude+and+mid+latitude&rft.au=Gosse%2C+John+C%3BKlein%2C+J&rft.aulast=Gosse&rft.aufirst=John&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=154&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 3 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - alkaline earth metals; altitude; Be-10; beryllium; boulders; calibration; clastic sediments; cosmogenic elements; exposure age; genesis; geochronology; glacial features; in situ; isotopes; latitude; metals; moraines; North America; Provo Lake; radioactive isotopes; rates; Rocky Mountains; sediments; time scales; Titcomb Basin; U. S. Rocky Mountains; United States; Utah; Wind River Range; Wyoming ER - TY - JOUR T1 - An Antarctic perspective on in-situ cosmogenic nuclide production AN - 52423129; 1999-071649 JF - Radiocarbon AU - Brook, Edward J AU - Brown, Erik T AU - Kurz, Mark D AU - Raisbeck, Grant M AU - Yiou, Francoise A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 150 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - methods KW - alkaline earth metals KW - in situ KW - Be-10 KW - isotopes KW - cosmogenic elements KW - He-3 KW - erosion rates KW - production KW - exposure age KW - stable isotopes KW - Al-26 KW - radioactive isotopes KW - Antarctica KW - noble gases KW - metals KW - aluminum KW - helium KW - beryllium KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=An+Antarctic+perspective+on+in-situ+cosmogenic+nuclide+production&rft.au=Brook%2C+Edward+J%3BBrown%2C+Erik+T%3BKurz%2C+Mark+D%3BRaisbeck%2C+Grant+M%3BYiou%2C+Francoise&rft.aulast=Brook&rft.aufirst=Edward&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=150&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Antarctica; Be-10; beryllium; cosmogenic elements; erosion rates; exposure age; He-3; helium; in situ; isotopes; metals; methods; noble gases; production; radioactive isotopes; stable isotopes ER - TY - JOUR T1 - Cosmogenic chlorine-36 production rates from calcium and potassium AN - 52423125; 1999-071671 JF - Radiocarbon AU - Stone, John AU - Evans, Jodie AU - Fifield, Keith AU - Cresswell, Richard AU - Allan, Gary A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 170 EP - 171 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - chlorine KW - calcium KW - alkaline earth metals KW - isotopes KW - Cl-36 KW - halogens KW - alkali metals KW - cosmogenic elements KW - rates KW - exposure age KW - genesis KW - radioactive isotopes KW - geochronology KW - metals KW - potassium KW - spallation KW - 03:Geochronology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Cosmogenic+chlorine-36+production+rates+from+calcium+and+potassium&rft.au=Stone%2C+John%3BEvans%2C+Jodie%3BFifield%2C+Keith%3BCresswell%2C+Richard%3BAllan%2C+Gary&rft.aulast=Stone&rft.aufirst=John&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; calcium; chlorine; Cl-36; cosmogenic elements; exposure age; genesis; geochronology; halogens; isotopes; metals; potassium; radioactive isotopes; rates; spallation ER - TY - JOUR T1 - Neutron-induced production cross sections for long-lived nuclides and rare gasses; some experimental data AN - 52423121; 1999-071657 JF - Radiocarbon AU - Imamura, Mineo A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 159 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - Ne-21 KW - Ne-22 KW - isotopes KW - halogens KW - cosmogenic elements KW - tritium KW - stable isotopes KW - Al-26 KW - radioactive isotopes KW - noble gases KW - neon KW - carbon KW - aluminum KW - chlorine KW - alkaline earth metals KW - experimental studies KW - Be-10 KW - Cl-36 KW - genesis KW - neutrons KW - metals KW - hydrogen KW - C-14 KW - beryllium KW - Be-7 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Neutron-induced+production+cross+sections+for+long-lived+nuclides+and+rare+gasses%3B+some+experimental+data&rft.au=Imamura%2C+Mineo&rft.aulast=Imamura&rft.aufirst=Mineo&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 1 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Be-10; Be-7; beryllium; C-14; carbon; chlorine; Cl-36; cosmogenic elements; experimental studies; genesis; halogens; hydrogen; isotopes; metals; Ne-21; Ne-22; neon; neutrons; noble gases; radioactive isotopes; stable isotopes; tritium ER - TY - JOUR T1 - Comparison of dates for young basalts from the (super 40) Ar/ (super 39) Ar and cosmogenic helium techniques AN - 52423093; 1999-071665 JF - Radiocarbon AU - Poths, J AU - Anthony, E Y AU - Williams, W J AU - Heizler, M AU - McIntosh, W C A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 167 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - United States KW - silicates KW - methods KW - volcanic rocks KW - isotopes KW - sanidine KW - Lathrop Wells volcanic field KW - igneous rocks KW - cosmogenic elements KW - New Mexico KW - He-3 KW - exposure age KW - stable isotopes KW - Cenozoic KW - Baja California KW - alkali feldspar KW - dates KW - noble gases KW - basalts KW - absolute age KW - helium KW - framework silicates KW - Nevada KW - Ar/Ar KW - rates KW - San Quintin volcanic field KW - Mexico KW - feldspar group KW - Potrillo volcanic field KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Comparison+of+dates+for+young+basalts+from+the+%28super+40%29+Ar%2F+%28super+39%29+Ar+and+cosmogenic+helium+techniques&rft.au=Poths%2C+J%3BAnthony%2C+E+Y%3BWilliams%2C+W+J%3BHeizler%2C+M%3BMcIntosh%2C+W+C&rft.aulast=Poths&rft.aufirst=J&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - absolute age; alkali feldspar; Ar/Ar; Baja California; basalts; Cenozoic; cosmogenic elements; dates; exposure age; feldspar group; framework silicates; He-3; helium; igneous rocks; isotopes; Lathrop Wells volcanic field; methods; Mexico; Nevada; New Mexico; noble gases; Potrillo volcanic field; rates; San Quintin volcanic field; sanidine; silicates; stable isotopes; United States; volcanic rocks ER - TY - JOUR T1 - Depth profiles of cosmogenic nuclides and accelerator simulation experiments with stopped negative muons and fast muons AN - 52423087; 1999-071656 JF - Radiocarbon AU - Heisinger, B AU - Niedermayer, M AU - Neumaier, S AU - Hartmann, F J AU - Korschinek, G AU - Nolte, E AU - Morteani, G AU - Petitjean, C AU - Kubik, Peter W AU - Synal, Hans-Arno AU - Ivy-Ochs, Susan D A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 158 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - experimental studies KW - chemical analysis KW - in situ KW - isotopes KW - cosmogenic elements KW - mass spectroscopy KW - erosion rates KW - production KW - radioactive isotopes KW - detection KW - muons KW - accelerator mass spectroscopy KW - spectroscopy KW - instruments KW - design KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Depth+profiles+of+cosmogenic+nuclides+and+accelerator+simulation+experiments+with+stopped+negative+muons+and+fast+muons&rft.au=Heisinger%2C+B%3BNiedermayer%2C+M%3BNeumaier%2C+S%3BHartmann%2C+F+J%3BKorschinek%2C+G%3BNolte%2C+E%3BMorteani%2C+G%3BPetitjean%2C+C%3BKubik%2C+Peter+W%3BSynal%2C+Hans-Arno%3BIvy-Ochs%2C+Susan+D&rft.aulast=Heisinger&rft.aufirst=B&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=158&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 2 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - accelerator mass spectroscopy; chemical analysis; cosmogenic elements; design; detection; erosion rates; experimental studies; in situ; instruments; isotopes; mass spectroscopy; muons; production; radioactive isotopes; spectroscopy ER - TY - JOUR T1 - Cosmogenic exposure age constraints on tectonic history and semi-arid landscape evolution AN - 52423061; 1999-071613 JF - Radiocarbon AU - Phillips, W M AU - Lifton, N A AU - Jull, A J T AU - Gosse, John C AU - Harrington, C D AU - Sharma, Pankaj AU - Vogt, Stephan AU - Klein, J A2 - Jull, A. J. T. Y1 - 1996 PY - 1996 DA - 1996 SP - 99 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - United States KW - terrestrial environment KW - Quaternary KW - isotopes KW - landform evolution KW - semi-arid environment KW - cosmogenic elements KW - displacements KW - Nye County Nevada KW - exposure age KW - Cenozoic KW - radioactive isotopes KW - neotectonics KW - tectonics KW - landscapes KW - Yucca Mountain KW - Nevada KW - faults KW - 03:Geochronology KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52423061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Cosmogenic+exposure+age+constraints+on+tectonic+history+and+semi-arid+landscape+evolution&rft.au=Phillips%2C+W+M%3BLifton%2C+N+A%3BJull%2C+A+J+T%3BGosse%2C+John+C%3BHarrington%2C+C+D%3BSharma%2C+Pankaj%3BVogt%2C+Stephan%3BKlein%2C+J&rft.aulast=Phillips&rft.aufirst=W&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - 7th international conference on Accelerator mass spectrometry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Cenozoic; cosmogenic elements; displacements; exposure age; faults; isotopes; landform evolution; landscapes; neotectonics; Nevada; Nye County Nevada; Quaternary; radioactive isotopes; semi-arid environment; tectonics; terrestrial environment; United States; Yucca Mountain ER - TY - JOUR T1 - Plans for calibration of the cosmic ray flux over the past 500,000 years using volcanic rock AN - 52422523; 1999-071670 JF - Radiocarbon AU - Dunne, A AU - Elmore, David AU - Sharma, Pankaj A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 153 EP - 154 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - methods KW - chlorine KW - Ar/Ar KW - Andes KW - volcanic rocks KW - Quaternary KW - isotopes KW - igneous rocks KW - Cl-36 KW - halogens KW - cosmogenic elements KW - calibration KW - exposure age KW - magnetic field KW - Cenozoic KW - South America KW - radioactive isotopes KW - absolute age KW - Central Andes KW - cosmic rays KW - applications KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52422523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Plans+for+calibration+of+the+cosmic+ray+flux+over+the+past+500%2C000+years+using+volcanic+rock&rft.au=Dunne%2C+A%3BElmore%2C+David%3BSharma%2C+Pankaj&rft.aulast=Dunne&rft.aufirst=A&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - absolute age; Andes; applications; Ar/Ar; calibration; Cenozoic; Central Andes; chlorine; Cl-36; cosmic rays; cosmogenic elements; exposure age; halogens; igneous rocks; isotopes; magnetic field; methods; Quaternary; radioactive isotopes; South America; volcanic rocks ER - TY - JOUR T1 - Production rate of (super 10) Be and (super 26) Al on the surface of the Earth and underground AN - 52422477; 1999-071662 JF - Radiocarbon AU - Nishiizumi, Kunihiko A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 164 EP - 165 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - silicates KW - alkaline earth metals KW - Be-10 KW - silica minerals KW - isotopes KW - rates KW - exposure age KW - genesis KW - Al-26 KW - radioactive isotopes KW - metals KW - aluminum KW - quartz KW - framework silicates KW - beryllium KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52422477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Production+rate+of+%28super+10%29+Be+and+%28super+26%29+Al+on+the+surface+of+the+Earth+and+underground&rft.au=Nishiizumi%2C+Kunihiko&rft.aulast=Nishiizumi&rft.aufirst=Kunihiko&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=164&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 9 N1 - PubXState - AZ N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Be-10; beryllium; exposure age; framework silicates; genesis; isotopes; metals; quartz; radioactive isotopes; rates; silica minerals; silicates ER - TY - JOUR T1 - Workshop on secular variations in the rates of production of cosmogenic nuclides on Earth; paleomagnetic averages of geomagnetic latitude AN - 52422187; 1999-071667 JF - Radiocarbon AU - Sternberg, Rob A2 - Gosse, John C. A2 - Reedy, Robert C. A2 - Harrington, Charles D. A2 - Poths, Jane Y1 - 1996 PY - 1996 DA - 1996 SP - 169 EP - 170 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 38 IS - 1 SN - 0033-8222, 0033-8222 KW - Quaternary KW - isotopes KW - secular variations KW - cosmogenic elements KW - rates KW - paleomagnetism KW - paleogeography KW - Holocene KW - exposure age KW - magnetic field KW - genesis KW - Cenozoic KW - paleolatitude KW - radioactive isotopes KW - dipole moment KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52422187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=Workshop+on+secular+variations+in+the+rates+of+production+of+cosmogenic+nuclides+on+Earth%3B+paleomagnetic+averages+of+geomagnetic+latitude&rft.au=Sternberg%2C+Rob&rft.aulast=Sternberg&rft.aufirst=Rob&rft.date=1996-01-01&rft.volume=38&rft.issue=1&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Conference title - Workshop on Secular variations in production rates of cosmogenic nuclides on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 3 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - Cenozoic; cosmogenic elements; dipole moment; exposure age; genesis; Holocene; isotopes; magnetic field; paleogeography; paleolatitude; paleomagnetism; Quaternary; radioactive isotopes; rates; secular variations ER - TY - JOUR T1 - Jemez volcanic field and Valles Caldera-middle Rio Grande Rift AN - 52401607; 2000-012909 JF - Special Publication - Colorado Geological Survey AU - Sawyer, David A AU - Thompson, Ren A AU - Goff, Fraser AU - Gardner, Jamie AU - Broxton, Dave AU - Reneau, Steve L AU - Baldridge, Scott AU - WoldeGabriel, Giday A2 - Thompson, Ren A. A2 - Hudson, Mark R. A2 - Pillmore, Charles L. Y1 - 1996 PY - 1996 DA - 1996 SP - 16 PB - Colorado Geological Survey, Denver, CO SN - 0099-6459, 0099-6459 KW - United States KW - Jemez volcanic field KW - bedrock KW - North America KW - tectonic elements KW - petrology KW - volcanic rocks KW - igneous rocks KW - surficial geology KW - landforms KW - field trips KW - New Mexico KW - areal geology KW - road log KW - Rio Grande Rift KW - Valles Caldera KW - geomorphology KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52401607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Publication+-+Colorado+Geological+Survey&rft.atitle=Jemez+volcanic+field+and+Valles+Caldera-middle+Rio+Grande+Rift&rft.au=Sawyer%2C+David+A%3BThompson%2C+Ren+A%3BGoff%2C+Fraser%3BGardner%2C+Jamie%3BBroxton%2C+Dave%3BReneau%2C+Steve+L%3BBaldridge%2C+Scott%3BWoldeGabriel%2C+Giday&rft.aulast=Sawyer&rft.aufirst=David&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Special+Publication+-+Colorado+Geological+Survey&rft.issn=00996459&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 59 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - CGSSA6 N1 - SubjectsTermNotLitGenreText - areal geology; bedrock; field trips; geomorphology; igneous rocks; Jemez volcanic field; landforms; New Mexico; North America; petrology; Rio Grande Rift; road log; surficial geology; tectonic elements; United States; Valles Caldera; volcanic rocks ER - TY - RPRT T1 - Simulation-based reservoir management program AN - 52371531; 2000-032007 AB - Pacific Operators Offshore, Inc. is attempting to redevelop the Carpinteria Offshore Field after two-and-a-half decades of production and partial abandonment by a previous operator. This paper describes a project which focuses on the distribution of advanced reservoir management technologies (geological, petrophysical, and engineering) to independent producers like Pacific Operators Offshore, Inc. The project described in this paper is an example of the implementation of a reservoir management tool which is supported by distributed databases, incorporates a shared computing environment, and integrates stochastic, geological, and engineering modeling. JF - Simulation-based reservoir management program AU - Voskanian, M M AU - Kendall, R P AU - Whitney, E M AU - Coombs, S AU - Paul, R G Y1 - 1996 PY - 1996 DA - 1996 SP - 10 VL - LA-UR-96-0594 | CONF-9605150-1 KW - United States KW - Carpinteria Field KW - petroleum engineering KW - offshore KW - data processing KW - petroleum KW - CAD KW - simulation KW - oil and gas fields KW - reservoir rocks KW - California KW - stochastic processes KW - data bases KW - information systems KW - computer networks KW - Internet KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52371531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Voskanian%2C+M+M%3BKendall%2C+R+P%3BWhitney%2C+E+M%3BCoombs%2C+S%3BPaul%2C+R+G&rft.aulast=Voskanian&rft.aufirst=M&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Simulation-based+reservoir+management+program&rft.title=Simulation-based+reservoir+management+program&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96008495NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the Society of Petroleum Engineers (SPE) Western regional meeting, Anchorage, AK, May 22-24, 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Characterization and immobilization of cesium-137 in soil at Los Alamos National Laboratory AN - 52293143; 2001-001095 AB - At Los Alamos National Laboratory, cesium-137 (Cs-137) is a major contaminant in soils of Technical Area 21 (TA-21) and is mainly associated with soil particles < or =2.00 mm. Cesium-137 was not leached by synthetic groundwater or acid rainwater. Soil erosion is a primary mechanism of Cs-137 transport in TA-21. The methodology that controls soil particle runoff can prevent the transport of Cs-137. JF - Characterization and immobilization of cesium-137 in soil at Los Alamos National Laboratory AU - Lu, N AU - Mason, C F V AU - Turney, W R J Y1 - 1996 PY - 1996 DA - 1996 SP - 16 VL - LA-UR-96-1322 | CONF-9606219-1 KW - United States KW - soils KW - isotopes KW - site exploration KW - alkali metals KW - pollution KW - New Mexico KW - migration of elements KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - remediation KW - radioactive isotopes KW - Cs-137 KW - cesium KW - metals KW - mobility KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52293143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Lu%2C+N%3BMason%2C+C+F+V%3BTurney%2C+W+R+J&rft.aulast=Lu&rft.aufirst=N&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Characterization+and+immobilization+of+cesium-137+in+soil+at+Los+Alamos+National+Laboratory&rft.title=Characterization+and+immobilization+of+cesium-137+in+soil+at+Los+Alamos+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96010480NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Contaminant signature at Los Alamos firing sites AN - 52285676; 2001-001056 AB - During a dynamic weapons test, a weapons component is either explosively detonated or impacted against a target in the open air environment. The explosive detonation process which creates aerial distribution over a watershed distinguishes this contaminant transport problem from others where the source term is spatially discrete. Investigations of this contamination began in 1983 with collection of onsite soils, sediments, and rock samples to establish uranium concentrations. The samples were analyzed for total uranium to evaluate the magnitude of transport of uranium away from firing sites by airborne and surface water runoff mechanisms. This data was then used to define a firing site. JF - Contaminant signature at Los Alamos firing sites AU - Becker, N AU - Irvine, J Y1 - 1996 PY - 1996 DA - 1996 SP - 8 VL - LA-UR-96-670 | CONF-9603129-3 KW - United States KW - volcanic rocks KW - isotopes KW - igneous rocks KW - New Mexico KW - Los Alamos County New Mexico KW - biogeography KW - radioactive isotopes KW - sediments KW - ecology KW - tuff KW - soils KW - pollutants KW - pollution KW - migration of elements KW - Los Alamos National Laboratory KW - pyroclastics KW - metals KW - runoff KW - testing KW - nuclear facilities KW - air KW - uranium KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52285676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Becker%2C+N%3BIrvine%2C+J&rft.aulast=Becker&rft.aufirst=N&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Contaminant+signature+at+Los+Alamos+firing+sites&rft.title=Contaminant+signature+at+Los+Alamos+firing+sites&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96008500NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 1996 New Mexico conference on the environment, Albuquerque, NM, March 12-14, 1996 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Comparison of photoacoustic radiometry to gas chromatography/mass spectrometry methods for monitoring chlorinated hydrocarbons AN - 52285259; 2001-001031 AB - A comparison of two methods of gas chromatography mass spectrometry (GCMS) and a nondispersive infrared technique, photoacoustic radiometry (PAR), is presented in the context of field monitoring a disposal site. First is presented an historical account describing the site and early monitoring to provide an overview. The intent and nature of the monitoring program changed when it was proposed to expand the Radiological Waste Site close to the Hazardous Waste Site. Both the sampling methods and analysis techniques were refined in the course of this exercise. JF - Comparison of photoacoustic radiometry to gas chromatography/mass spectrometry methods for monitoring chlorinated hydrocarbons AU - Sollid, J E AU - Trujillo, V L AU - Limback, S P AU - Woloshun, K A Y1 - 1996 PY - 1996 DA - 1996 SP - 17 VL - LA-UR-96-100 | CONF-9606125-2 KW - soils KW - hazardous waste KW - chlorinated hydrocarbons KW - monitoring KW - pollutants KW - waste disposal sites KW - pollution KW - mass spectroscopy KW - remediation KW - radioactive waste KW - waste management KW - gas chromatography KW - organic compounds KW - detection KW - sampling KW - hydrocarbons KW - halogenated hydrocarbons KW - waste disposal KW - spectroscopy KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52285259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Sollid%2C+J+E%3BTrujillo%2C+V+L%3BLimback%2C+S+P%3BWoloshun%2C+K+A&rft.aulast=Sollid&rft.aufirst=J&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Comparison+of+photoacoustic+radiometry+to+gas+chromatography%2Fmass+spectrometry+methods+for+monitoring+chlorinated+hydrocarbons&rft.title=Comparison+of+photoacoustic+radiometry+to+gas+chromatography%2Fmass+spectrometry+methods+for+monitoring+chlorinated+hydrocarbons&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96007170NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the Air and Waste Management (AWM) annual meeting, Nashville, TN, June 23-38, 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Geological applications of automatic grid generation tools for finite elements applied to porous flow modeling AN - 52285044; 2001-001045 AB - The construction of grids that accurately reflect geologic structure and stratigraphy for computational flow and transport models poses a formidable task. Even with a complete understanding of stratigraphy, material properties, boundary and initial conditions, the task of incorporating data into a numerical model can be difficult and time consuming. Furthermore, most tools available for representing complex geologic surfaces and volumes are not designed for producing optimal grids for flow and transport computation. We have developed a modeling tool, GEOMESH, for automating finite element grid generation that maintains the geometric integrity of geologic structure and stratigraphy. The method produces an optimal (Delaunay) tetrahedral grid that can be used for flow and transport computations. The process of developing a flow and transport model can be divided into three parts: (1) Developing accurate conceptual models inclusive of geologic interpretation, material characterization and construction of a stratigraphic and hydrostratigraphic framework model, (2) Building and initializing computational frameworks; grid generation, boundary and initial conditions, (3) Computational physics models of flow and transport. Process (1) and (3) have received considerable attention whereas (2) has not. This work concentrates on grid generation and its connections to geologic characterization and process modeling. Applications of GEOMESH illustrate grid generation for two dimensional cross sections, three dimensional regional models, and adaptive grid refinement in three dimensions. Examples of grid representation of wells and tunnels with GEOMESH can be found in Cherry et al. The resulting grid can be utilized by unstructured finite element or integrated finite difference models. JF - Geological applications of automatic grid generation tools for finite elements applied to porous flow modeling AU - Gable, C W AU - Trease, H E AU - Cherry, T A Y1 - 1996 PY - 1996 DA - 1996 SP - 9 VL - LA-UR-96-1084 | CONF-960489-3 KW - GEOMESH KW - numerical models KW - spatial data KW - statistical analysis KW - data processing KW - pollution KW - porous materials KW - fluid dynamics KW - porosity KW - boundary conditions KW - ground water KW - aquifers KW - models KW - computer programs KW - finite element analysis KW - transport KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52285044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Gable%2C+C+W%3BTrease%2C+H+E%3BCherry%2C+T+A&rft.aulast=Gable&rft.aufirst=C&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Geological+applications+of+automatic+grid+generation+tools+for+finite+elements+applied+to+porous+flow+modeling&rft.title=Geological+applications+of+automatic+grid+generation+tools+for+finite+elements+applied+to+porous+flow+modeling&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96009772NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 5th international conference on Numerical grid generation in computational fluid dynamics and related fields, Starkville, MS, April 1-5, 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Synthetic seismograms at regional distances for May 1995 earthquake and explosion sources in western China AN - 52248128; 2001-029273 AB - Waveforms recorded at several regional seismic stations at varying azimuths from explosion and earthquake sources in western China exhibit marked variation from station to station. We have performed two-dimensional finite difference simulations of these events, using moment tensor sources and simple crustal structure models, to generate synthetic seismograms at these locations. The synthetic seismograms at three locations exhibit behavior that is qualitatively consistent with the data, while computational results at a fourth station differ from the data. We discuss these results, the assumptions of the simulations, and the limitations of this type of modeling in the context of regional seismic propagation. JF - Synthetic seismograms at regional distances for May 1995 earthquake and explosion sources in western China AU - App, F N AU - Bos, R J AU - Kamm, J R Y1 - 1996 PY - 1996 DA - 1996 SP - 8 VL - LA-UR-96-2293 | CONF-9609185-6 KW - seismograms KW - monitoring KW - Far East KW - explosions KW - finite difference analysis KW - statistical analysis KW - seismographs KW - seismic sources KW - simulation KW - two-dimensional models KW - models KW - detection KW - seismicity KW - synthetic seismograms KW - western China KW - nuclear explosions KW - Asia KW - earthquakes KW - instruments KW - China KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52248128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=App%2C+F+N%3BBos%2C+R+J%3BKamm%2C+J+R&rft.aulast=App&rft.aufirst=F&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Synthetic+seismograms+at+regional+distances+for+May+1995+earthquake+and+explosion+sources+in+western+China&rft.title=Synthetic+seismograms+at+regional+distances+for+May+1995+earthquake+and+explosion+sources+in+western+China&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96012840NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 18th Seismic research symposium on Monitoring a Comprehensive Test Ban Treaty (CTBT), Annapolis, MD, Sept. 4-6, 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Yucca Mountain tuffs AN - 52168147; 2002-000013 AB - This report is a compilation of petrographic slides detailing the microstructure and petrographic character of the tuff deposits associated with the Yucca Mountain radioactive waste repository. It describes crystal structures, clay alterations, and mineral associations. The paper contains a description of the petrographic thin-sections but contains no narrative or conclusions of what the slides suggest with regards to the facility. JF - Yucca Mountain tuffs Y1 - 1996 PY - 1996 DA - 1996 SP - 38 VL - LA-SUB-96-104 KW - United States KW - volcanic rocks KW - site exploration KW - igneous rocks KW - characterization KW - porous materials KW - migration of elements KW - thin sections KW - Nye County Nevada KW - radioactive waste KW - ultrastructure KW - pyroclastics KW - physical properties KW - diagenesis KW - underground installations KW - tuff KW - waste disposal KW - Yucca Mountain KW - rocks KW - mobility KW - underground disposal KW - Nevada KW - storage KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52168147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Yucca+Mountain+tuffs&rft.title=Yucca+Mountain+tuffs&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96013710NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Development and testing of biosensors that quantitatively and specifically detect organic contaminants AN - 52166290; 2002-000069 AB - This is the final report of a two-year Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project sought to develop a more sensitive and less expensive method of detecting organic contaminants. Assaying complex environmental samples for organic contaminant content is costly and labor intensive. This often limits extensive testing. Sensitive microbial biosensors that detect specific organic contaminants in complex waste mixtures without prior separation from other waste components have been developed. Some soil microbes degrade organic compounds that contaminate the environment. These bacteria sense minute quantities of particular organic compounds then respond by activating genes encoding enzymes that degrade these molecules. Genetic manipulation of these gene regulatory processes has been employed to develop unique biosensors that detect specific organic compounds using standard biochemical assays. Such biosensors allow rapid, sensitive testing of environmental samples for selected organic contaminants. The cost of biosensor assays is at least 100-fold less than present methods, allowing more rapid and extensive testing and site characterization. JF - Development and testing of biosensors that quantitatively and specifically detect organic contaminants AU - Jackson, P AU - Keim, P AU - Kuske, C AU - Willardson, B Y1 - 1996 PY - 1996 DA - 1996 SP - 9 VL - LA-UR-96-1928 KW - United States KW - thallophytes KW - soils KW - concentration KW - biodegradation KW - Plantae KW - detection limit KW - pollutants KW - biochemistry KW - pollution KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos National Laboratory KW - research KW - remediation KW - genetic engineering KW - organic compounds KW - detection KW - bacteria KW - chemical properties KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52166290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Jackson%2C+P%3BKeim%2C+P%3BKuske%2C+C%3BWillardson%2C+B&rft.aulast=Jackson&rft.aufirst=P&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Development+and+testing+of+biosensors+that+quantitatively+and+specifically+detect+organic+contaminants&rft.title=Development+and+testing+of+biosensors+that+quantitatively+and+specifically+detect+organic+contaminants&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96012870NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - In situ RF/microwave remediation of soil experiment overview AN - 52165907; 2002-000090 AB - Contaminant plumes are significant waste problems that require remediation in both the government and private sectors. The authors have developed an in situ process that uses RF/microwave stimulation to remove pollutants from contaminated soils. This process is more efficient than existing technologies, creates less secondary pollution, and is applicable to situations that are not amenable to treatment by existing technologies. Currently the most commonly used process is soil vapor extraction. However, even when it is successful, this technology is energy inefficient. The objective is to combine RF/microwave energy application with soil vapor extraction to help mobilize and efficiently remove the soil contaminants, specifically demonstrating the viability of RF/microwave induced, in situ, soil remediation of light and dense non-aqueous phase liquids (LNAPL, DNAPL) contaminants. The authors have conducted a number of benchtop experiments involving RF/microwave energy deposition and vapor extraction on controlled contaminated soil samples with successful removal of the contaminants. This paper will describe the experimental hardware utilized, the experiments performed, the chemical analysis performed pre- and post-energy application, and results. In the experiments, two different halogenated liquids were used to contaminate the soil: carbon tetrachloride and 1,1,1-trichloroethane. JF - In situ RF/microwave remediation of soil experiment overview AU - Regan, A H AU - Roybal, W T AU - Ortega, R AU - Palomares, M AU - Rees, D E Y1 - 1996 PY - 1996 DA - 1996 SP - 8 VL - LA-UR-96-1315 | CONF-960804-20 KW - United States KW - chlorinated hydrocarbons KW - degradation KW - aliphatic hydrocarbons KW - light nonaqueous phase liquids KW - trichloroethane KW - dense nonaqueous phase liquids KW - remediation KW - radioactive waste KW - microwave methods KW - laboratory studies KW - decontamination KW - halogenated hydrocarbons KW - geochemistry KW - soils KW - Idaho KW - experimental studies KW - in situ KW - pollutants KW - thermal properties KW - soil treatment KW - pollution KW - carbon tetrachloride KW - nonaqueous phase liquids KW - INEEL KW - physical properties KW - organic compounds KW - detection KW - hydrocarbons KW - nuclear facilities KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52165907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Regan%2C+A+H%3BRoybal%2C+W+T%3BOrtega%2C+R%3BPalomares%2C+M%3BRees%2C+D+E&rft.aulast=Regan&rft.aufirst=A&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=In+situ+RF%2Fmicrowave+remediation+of+soil+experiment+overview&rft.title=In+situ+RF%2Fmicrowave+remediation+of+soil+experiment+overview&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96009240NEG, Springfield, VA, United States N1 - SuppNotes - Presented at SPECTRUM '96; international conference on Nuclear and hazardous waste management, Seattle, WA, Aug. 18-23, 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Criticality characteristics of mixtures of plutonium, silicon dioxide, Nevada tuff, and water AN - 52163328; 2002-000102 AB - The major objective of this study has been to examine the possibility of a nuclear explosion should 50 to 100 kg of plutonium be mixed with SiO2, vitrified, placed within a heavy steel container, and buried in the material known as Nevada tuff. To accomplish this objective, the authors have created a survey of critical states or configurations of mixtures of plutonium, SiO2, tuff, and water and examined these data to determine those configurations that might be unstable or autocatalytic. They have identified regions of criticality instability with the possibility of autocatalytic power behavior. Autocatalytic behavior is possible but improbable, for a very limited range of wet systems. JF - Criticality characteristics of mixtures of plutonium, silicon dioxide, Nevada tuff, and water AU - Sanchez, R G AU - Myers, W AU - Stratton, W Y1 - 1996 PY - 1996 DA - 1996 SP - 9 VL - LA-UR-96-1285 | CONF-960804-21 KW - United States KW - volcanic rocks KW - isotopes KW - plutonium KW - igneous rocks KW - Pu-239 KW - characterization KW - radioactive waste KW - ground water KW - radioactive isotopes KW - silica KW - tuff KW - Yucca Mountain KW - mobility KW - Nevada KW - underground storage KW - pollutants KW - pollution KW - migration of elements KW - reactivation KW - Nye County Nevada KW - pyroclastics KW - metals KW - vitrification KW - underground installations KW - waste disposal KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52163328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Sanchez%2C+R+G%3BMyers%2C+W%3BStratton%2C+W&rft.aulast=Sanchez&rft.aufirst=R&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Criticality+characteristics+of+mixtures+of+plutonium%2C+silicon+dioxide%2C+Nevada+tuff%2C+and+water&rft.title=Criticality+characteristics+of+mixtures+of+plutonium%2C+silicon+dioxide%2C+Nevada+tuff%2C+and+water&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96009228NEG, Springfield, VA, United States N1 - SuppNotes - Presented at SPECTRUM '96; International conference on Nuclear and hazardous waste management, Seattle, WA, Aug. 18-23, 1996; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Uptake of strontium by chamisa (Chrysothamnus nauseosus) shrub plants growing over a former liquid waste disposal site at Los Alamos National Laboratory AN - 52162054; 2002-000154 AB - A major concern of managers at low-level waste burial site facilities is that plant roots may translocate contaminants up to the soil surface. This study investigates the uptake of strontium ( (super 90) Sr), a biologically mobile element, by chamisa (Chrysothamnus nauseosus), a deep-rooted shrub plant, growing in a former liquid waste disposal site (Solid Waste Management Unit (SWMU) 10-003(c)) at Los Alamos National Laboratory (LANL), Los Alamos, New Mexico. Surface soil samples were also collected from below (understory) and between (interspace) shrub canopies. Both chamisa plants growing over SWMU 10-003(c) contained significantly higher concentrations of (super 90) Sr than a control plant--one plant, in particular, contained 3.35X10 (super 6) Bq kg (super -1) ash (9.05X10 (super 4) pCi g( (super -1) ash) in top-growth material. Similarly, soil surface samples collected underneath and between plants contained (super 90) Sr concentrations above background and LANL screening action levels (>218 Bq kg (super NG1) ) dry (5.90 pCi g (super -1) dry); this probably occurred as a result of chamisa plant leaf fall contaminating the soil understory area followed by water and/or winds moving (super 90) Sr to the soil interspace areas. Although some soil surface migration of (super 90) Sr from SWMU 10-003(c) has occurred, the level of (super 90) Sr in sediments collected downstream of SWMU 10-003(c) at the LANL boundary was still within regional (background) concentrations. JF - Uptake of strontium by chamisa (Chrysothamnus nauseosus) shrub plants growing over a former liquid waste disposal site at Los Alamos National Laboratory AU - Fresquez, P R AU - Foxx, T S AU - Naranjo, L Y1 - 1996 PY - 1996 DA - 1996 SP - 9 VL - LA-UR-96-1510 | CONF-9504135-4 KW - United States KW - Sr-90 KW - isotopes KW - ecosystems KW - New Mexico KW - Los Alamos County New Mexico KW - radioactive waste KW - radioactive isotopes KW - soils KW - concentration KW - alkaline earth metals KW - Plantae KW - pollution KW - migration of elements KW - adsorption KW - Los Alamos National Laboratory KW - Chrysothamnus nauseosus KW - detection KW - liquid waste KW - metals KW - streams KW - waste disposal KW - low-level waste KW - strontium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52162054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Fresquez%2C+P+R%3BFoxx%2C+T+S%3BNaranjo%2C+L&rft.aulast=Fresquez&rft.aufirst=P&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Uptake+of+strontium+by+chamisa+%28Chrysothamnus+nauseosus%29+shrub+plants+growing+over+a+former+liquid+waste+disposal+site+at+Los+Alamos+National+Laboratory&rft.title=Uptake+of+strontium+by+chamisa+%28Chrysothamnus+nauseosus%29+shrub+plants+growing+over+a+former+liquid+waste+disposal+site+at+Los+Alamos+National+Laboratory&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96010378NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 5th annual Waste-management education and research consortium (WERC) Technology development conference, Las Cruces, NM, Apr. 18-20, 1995; Contract W-7405-ENG-36 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Automated grid generation from models of complex geologic structure and stratigraphy AN - 51939527; 2003-069498 AB - The construction of computational grids which accurately reflect complex geologic structure and stratigraphy for flow and transport models poses a formidable task. With an understanding of stratigraphy, material properties and boundary and initial conditions, the task of incorporating this data into a numerical model can be difficult and time consuming. Most GIS tools for representing complex geologic volumes and surfaces are not designed for producing optimal grids for flow and transport computation. We have developed a tool, GEOMESH, for generating finite element grids that maintain the geometric integrity of input volumes, surfaces, and geologic data and produce an optimal (Delaunay) tetrahedral grid that can be used for flow and transport computations. GEOMESH also satisfies the constraint that the geometric coupling coefficients of the grid are positive for all elements. GEOMESH generates grids for two dimensional cross sections, three dimensional regional models, represents faults and fractures, and has the capability of including finer grids representing tunnels and well bores into grids. GEOMESH also permits adaptive grid refinement in three dimensions. The tools to glue, merge and insert grids together demonstrate how complex grids can be built from simpler pieces. The resulting grid can be utilized by unstructured finite element or integrated finite difference computational physics codes. JF - International Conference/Workshop on Integrating Geographic Information Systems & Environmental Modeling AU - Gable, Carl AU - Trease, Harold AU - Cherry, Terry AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 10 PB - Clarion Harvest House, Boulder, CO VL - 3 KW - lithostratigraphy KW - tectonic elements KW - GEOMESH KW - numerical models KW - three-dimensional models KW - engineering properties KW - finite difference analysis KW - statistical analysis KW - data processing KW - mapping KW - boundary conditions KW - computer programs KW - finite element analysis KW - geographic information systems KW - folds KW - information systems KW - applications KW - algorithms KW - faults KW - 16:Structural geology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51939527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference%2FWorkshop+on+Integrating+Geographic+Information+Systems+%26+Environmental+Modeling&rft.atitle=Automated+grid+generation+from+models+of+complex+geologic+structure+and+stratigraphy&rft.au=Gable%2C+Carl%3BTrease%2C+Harold%3BCherry%2C+Terry%3BAnonymous&rft.aulast=Gable&rft.aufirst=Carl&rft.date=1996-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference%2FWorkshop+on+Integrating+Geographic+Information+Systems+%26+Environmental+Modeling&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference/workshop in Integrating geographic information systems and environmental modeling N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 9 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #06205 N1 - SubjectsTermNotLitGenreText - algorithms; applications; boundary conditions; computer programs; data processing; engineering properties; faults; finite difference analysis; finite element analysis; folds; geographic information systems; GEOMESH; information systems; lithostratigraphy; mapping; numerical models; statistical analysis; tectonic elements; three-dimensional models ER - TY - JOUR T1 - Radionuclide sorption on well construction materials AN - 51060751; 1996-079056 JF - Ground Water Monitoring & Remediation AU - Thompson, Joseph L Y1 - 1996 PY - 1996 DA - 1996 SP - 163 EP - 167 PB - Ground Water Publishing Co., Dublin, OH VL - 16 IS - 3 SN - 1069-3629, 1069-3629 KW - wells KW - United States KW - sorption KW - cobalt KW - isotopes KW - observation wells KW - ground water KW - Nevada Test Site KW - radioactive isotopes KW - cesium KW - construction KW - Nevada KW - construction materials KW - concentration KW - pollutants KW - alkali metals KW - pollution KW - well screens KW - aquifers KW - Cs-137 KW - metals KW - Co-57 KW - leaching KW - water wells KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51060751?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water+Monitoring+%26+Remediation&rft.atitle=Radionuclide+sorption+on+well+construction+materials&rft.au=Thompson%2C+Joseph+L&rft.aulast=Thompson&rft.aufirst=Joseph&rft.date=1996-01-01&rft.volume=16&rft.issue=3&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Monitoring+%26+Remediation&rft.issn=10693629&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - alkali metals; aquifers; cesium; Co-57; cobalt; concentration; construction; construction materials; Cs-137; ground water; isotopes; leaching; metals; Nevada; Nevada Test Site; observation wells; pollutants; pollution; radioactive isotopes; sorption; United States; water wells; well screens; wells ER - TY - JOUR T1 - The hydrothermal diamond anvil cell (HDAC) and its applications AN - 51041516; 1997-075927 JF - Special Publication - Geochemical Society AU - Bassett, William A AU - Wu, Tzy-Chung AU - Chou, I-Ming AU - Haselton, H T, Jr AU - Frantz, John D AU - Mysen, Bjorn O AU - Huang, Wuu-Liang AU - Sharma, Shiv K AU - Schiferl, David A2 - Dyar, M. Darby A2 - McCammon, Catherine A2 - Schaefer, Martha W. Y1 - 1996 PY - 1996 DA - 1996 SP - 261 EP - 272 PB - Geochemical Society, University Park, PA VL - 5 SN - 1073-2179, 1073-2179 KW - silicates KW - methods KW - organic residues KW - X-ray diffraction data KW - melts KW - temperature KW - infrared spectra KW - synchrotron radiation KW - absorption KW - sedimentary rocks KW - coal KW - crude oil KW - lignite KW - applications KW - spectra KW - P-T conditions KW - montmorillonite KW - organic materials KW - pressure KW - silicate melts KW - high pressure KW - new methods KW - clay minerals KW - luminescence KW - organic compounds KW - Raman spectra KW - sheet silicates KW - kerogen KW - anvil cells KW - instruments KW - high temperature KW - design KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51041516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Publication+-+Geochemical+Society&rft.atitle=The+hydrothermal+diamond+anvil+cell+%28HDAC%29+and+its+applications&rft.au=Bassett%2C+William+A%3BWu%2C+Tzy-Chung%3BChou%2C+I-Ming%3BHaselton%2C+H+T%2C+Jr%3BFrantz%2C+John+D%3BMysen%2C+Bjorn+O%3BHuang%2C+Wuu-Liang%3BSharma%2C+Shiv+K%3BSchiferl%2C+David&rft.aulast=Bassett&rft.aufirst=William&rft.date=1996-01-01&rft.volume=5&rft.issue=&rft.spage=261&rft.isbn=0941809048&rft.btitle=&rft.title=Special+Publication+-+Geochemical+Society&rft.issn=10732179&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 36 N1 - PubXState - PA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absorption; anvil cells; applications; clay minerals; coal; crude oil; design; high pressure; high temperature; infrared spectra; instruments; kerogen; lignite; luminescence; melts; methods; montmorillonite; new methods; organic compounds; organic materials; organic residues; P-T conditions; pressure; Raman spectra; sedimentary rocks; sheet silicates; silicate melts; silicates; spectra; synchrotron radiation; temperature; X-ray diffraction data ER - TY - JOUR T1 - Field characteristics of the El Cajete pumice deposit and associated southwestern moat rhyolites of the Valles Caldera AN - 50415004; 2009-057284 AB - Previous studies of the 50-60 ka southwestern moat rhyolites in the Valles caldera have underestimated the complexity of the eruption sequence they record. Based on new quarry exposures, and re-examination of roadcuts along NM-4, we recognize them as the products of a single eruption consisting of three cycles, each beginning with explosive activity and terminating with effusion of lava. The first cycle was dominated by plinian fallout, dispersed to the southeast of the vent which makes up part of the El Cajete pumice. A pyroclastic surge erupted during this cycle levelled a forest of tree trunks projecting from the initial fallout accumulation. This sequence ended with extrusion of a lava, progressively destroyed during explosive eruptions of the second cycle, during which activity gradually shifted from fallout-dominated to flow-dominated. The plinian falls are dispersed to the south, while the pyroclastic flows largely moved in a westerly direction along the caldera moat and into the head of San Diego Canyon to form the Battleship Rock ignimbrite. The last phase of this cycle produced a lava, found only in the VC-1 core. The third and last cycle began with eruption of an ignimbrite, but is mainly represented by the Banco Bonito lava, which dominates the modern topography of the southwestern Valles caldera moat. JF - Guidebook - New Mexico Geological Society AU - Wolff, J A AU - Gardner, Jamie N AU - Reneau, Steven L A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 311 EP - 316 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - volcanic rocks KW - pyroclastic surges KW - El Cajete Member KW - paleorelief KW - igneous rocks KW - plinian-type eruptions KW - New Mexico KW - explosive eruptions KW - cores KW - Cenozoic KW - Valles Caldera KW - stratigraphic units KW - Valles Rhyolite KW - Battleship Rock Member KW - rhyolites KW - Quaternary KW - ignimbrite KW - cyclic processes KW - San Diego Canyon KW - Banco Bonito Member KW - pyroclastics KW - eruptions KW - pumice KW - Pleistocene KW - field studies KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50415004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Field+characteristics+of+the+El+Cajete+pumice+deposit+and+associated+southwestern+moat+rhyolites+of+the+Valles+Caldera&rft.au=Wolff%2C+J+A%3BGardner%2C+Jamie+N%3BReneau%2C+Steven+L&rft.aulast=Wolff&rft.aufirst=J&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 13 N1 - PubXState - NM N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - Banco Bonito Member; Battleship Rock Member; Cenozoic; cores; cyclic processes; El Cajete Member; eruptions; explosive eruptions; field studies; igneous rocks; ignimbrite; New Mexico; paleorelief; Pleistocene; plinian-type eruptions; pumice; pyroclastic surges; pyroclastics; Quaternary; rhyolites; San Diego Canyon; stratigraphic units; United States; Valles Caldera; Valles Rhyolite; volcanic rocks ER - TY - JOUR T1 - Outline of the petrology and geochemistry of the Keres Group lavas and tuffs AN - 50414987; 2009-057275 JF - Guidebook - New Mexico Geological Society AU - Ellisor, Rachel AU - Wolff, John AU - Gardner, Jamie N A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 237 EP - 242 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - andesites KW - volcanic rocks KW - isotopes KW - igneous rocks KW - lead KW - New Mexico KW - stable isotopes KW - Cenozoic KW - assimilation KW - olivine tholeiite KW - Santa Fe Group KW - radioactive isotopes KW - basalts KW - dacites KW - tuff KW - rare earths KW - trace elements KW - geochemistry KW - Pb-207/Pb-204 KW - alkaline earth metals KW - rhyolites KW - Keres Group KW - Pb-206/Pb-204 KW - isotope ratios KW - differentiation KW - Miocene KW - Nd-144/Nd-143 KW - Sr-87/Sr-86 KW - pyroclastics KW - Tertiary KW - Neogene KW - metals KW - magmas KW - petrography KW - Pb-208/Pb-204 KW - fractional crystallization KW - neodymium KW - ocean-island basalts KW - strontium KW - north-central New Mexico KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50414987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Outline+of+the+petrology+and+geochemistry+of+the+Keres+Group+lavas+and+tuffs&rft.au=Ellisor%2C+Rachel%3BWolff%2C+John%3BGardner%2C+Jamie+N&rft.aulast=Ellisor&rft.aufirst=Rachel&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 32 N1 - PubXState - NM N1 - Document feature - illus. incl. strat. col., 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; andesites; assimilation; basalts; Cenozoic; dacites; differentiation; fractional crystallization; geochemistry; igneous rocks; isotope ratios; isotopes; Keres Group; lead; magmas; metals; Miocene; Nd-144/Nd-143; neodymium; Neogene; New Mexico; north-central New Mexico; ocean-island basalts; olivine tholeiite; Pb-206/Pb-204; Pb-207/Pb-204; Pb-208/Pb-204; petrography; pyroclastics; radioactive isotopes; rare earths; rhyolites; Santa Fe Group; Sr-87/Sr-86; stable isotopes; strontium; Tertiary; trace elements; tuff; United States; volcanic rocks ER - TY - JOUR T1 - Soil-forming processes on the Pajarito Plateau; investigation of a soil chronosequence in Rendija Canyon AN - 50413843; 2009-057290 AB - Soils formed on alluvial terraces in Rendija Canyon, near Los Alamos National Laboratory, provide a stratigraphic framework in which to evaluate time-dependent soil-forming processes. Soils formed on three Holocene terraces, ranging in age from about 0.5 ka to 7.0 (super 14) C ka, typically have weakly developed Bw horizons that increase in thickness from 20 to >60 cm with increasing soil age. Soils formed on two of the Pleistocene terraces that are >13.8 (super 14) C ka have moderately to strongly developed Bt horizons that typically increase in thickness from about 150 to 250 cm. The oldest soil formed on a third Pleistocene terrace has been severely truncated by erosion. Many of the soils have been influenced by the subsequent addition of alluvium and/or colluvium. Addition of silt and clay from eolian sediment has probably also occurred. The Soil Development Index was used to provide preliminary numerical comparisons of soil development and to develop a soil chronofunction capable of providing ages for the undated Pleistocene terraces. The resulting soil chronofunction suggests that soils on the two youngest Pleistocene terraces began forming at about 70-80 and 105-180 ka, respectively. Although these age estimates are preliminary and will undergo revision as soil-forming processes on the Pajarito Plateau become better understood, the results of this study are encouraging and indicate the potential for using soils to greatly improve understanding of local geomorphic history. JF - Guidebook - New Mexico Geological Society AU - McDonald, Eric V AU - Reneau, Steven L AU - Gardner, Jamie N A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 367 EP - 374 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - clay KW - erosion KW - Pajarito Plateau KW - New Mexico KW - Los Alamos County New Mexico KW - terraces KW - Holocene KW - Cenozoic KW - age KW - sediments KW - chronosequences KW - thickness KW - horizons KW - soils KW - pedogenesis KW - soil profiles KW - Quaternary KW - colluvium KW - clastic sediments KW - silt KW - Los Alamos National Laboratory KW - depth KW - parent materials KW - Pleistocene KW - Rendija Canyon KW - alluvium KW - soil development index KW - geomorphology KW - fluvial environment KW - 24:Quaternary geology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Soil-forming+processes+on+the+Pajarito+Plateau%3B+investigation+of+a+soil+chronosequence+in+Rendija+Canyon&rft.au=McDonald%2C+Eric+V%3BReneau%2C+Steven+L%3BGardner%2C+Jamie+N&rft.aulast=McDonald&rft.aufirst=Eric&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 26 N1 - PubXState - NM N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - age; alluvium; Cenozoic; chronosequences; clastic sediments; clay; colluvium; depth; erosion; fluvial environment; geomorphology; Holocene; horizons; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; Pajarito Plateau; parent materials; pedogenesis; Pleistocene; Quaternary; Rendija Canyon; sediments; silt; soil development index; soil profiles; soils; terraces; thickness; United States ER - TY - JOUR T1 - Aqueous geochemistry of upper Los Alamos Canyon, Los Alamos, New Mexico AN - 50413748; 2009-057305 AB - Geochemical characterization of alluvial ground water within upper Los Alamos Canyon, Los Alamos, New Mexico is required for environmental investigations. Ground water is one of the primary pathways for migration of solutes, including (super 3) H, (super 90) Sr, and other radionuclides. Alluvial ground water varies from a native Ca (super 2+) -Na (super +) -HCO (sub 3) (super -) ionic composition to a Na (super +) -Ca (super 2+) -Cl (super -) -HCO (sub 3) (super -) ionic composition, with increasing chloride and sodium concentrations occurring downgradient of facility discharges. Rock-water interactions, including precipitation/dissolution reactions of silicates and silica glass, control major-ion chemistry for the silica-rich solutions. Hydrolysis of volcanic glass, enriched in silica, aluminum, and sodium, may result in the formation of amorphous Al(OH) (sub 3) , kaolinite, and smectite over long periods of time. Formation of these geochemically reactive phases provides active surface sites for cation exchange of (super 90) Sr (super 2+) with other divalent metals. Results of geochemical modeling using the computer code MINTEQA2 suggest that alluvial ground water is undersaturated with respect to SrCO (sub 3) and SrSO (sub 4) and precipitation of these two minerals is unlikely from a thermodynamic basis. Sorption coefficient (Kd) values for strontium measured on organic-rich Los Alamos Canyon soils and channel sediments range from 15.8 to 67.7 ml/g (mean value of 35.7 ml/g) and from 8.8 to 41.3 ml/g (mean value of 21.4 ml/g), respectively, suggesting that this cation is a nonconservative solute that is partially removed from solution through cation exchange. The isotope (super 90) Sr is considered to be the most important radionuclide for risk analysis because of its low maximum contaminant level (8 pCi/L) and widespread distribution in the alluvium in upper Los Alamos Canyon. JF - Guidebook - New Mexico Geological Society AU - Longmire, Patrick A AU - Kung, Stephen AU - Bock, Jeremy M AU - Adams, Andrew I AU - Caporuscio, Florie AU - Gray, Robert N Y1 - 1996 PY - 1996 DA - 1996 SP - 473 EP - 480 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - solute transport KW - silicates KW - water quality KW - Sr-90 KW - sorption KW - contaminant plumes KW - isotopes KW - stream sediments KW - hydrolysis KW - tritium KW - New Mexico KW - Los Alamos County New Mexico KW - aqueous solutions KW - ground water KW - saturated zone KW - radioactive isotopes KW - water-rock interaction KW - sediments KW - trace elements KW - geochemistry KW - pH KW - soils KW - migration KW - alkaline earth metals KW - colloidal materials KW - monitoring KW - cation exchange capacity KW - clastic sediments KW - human activity KW - solutes KW - pollution KW - Los Alamos National Laboratory KW - hydrochemistry KW - equilibrium KW - clay minerals KW - models KW - precipitation KW - metals KW - infiltration KW - hydrogen KW - sheet silicates KW - alluvium KW - Los Alamos Canyon KW - strontium KW - major ions KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413748?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Aqueous+geochemistry+of+upper+Los+Alamos+Canyon%2C+Los+Alamos%2C+New+Mexico&rft.au=Longmire%2C+Patrick+A%3BKung%2C+Stephen%3BBock%2C+Jeremy+M%3BAdams%2C+Andrew+I%3BCaporuscio%2C+Florie%3BGray%2C+Robert+N&rft.aulast=Longmire&rft.aufirst=Patrick&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 29 N1 - PubXState - NM N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; alluvium; aqueous solutions; cation exchange capacity; clastic sediments; clay minerals; colloidal materials; contaminant plumes; equilibrium; geochemistry; ground water; human activity; hydrochemistry; hydrogen; hydrolysis; infiltration; isotopes; Los Alamos Canyon; Los Alamos County New Mexico; Los Alamos National Laboratory; major ions; metals; migration; models; monitoring; New Mexico; pH; pollution; precipitation; radioactive isotopes; saturated zone; sediments; sheet silicates; silicates; soils; solute transport; solutes; sorption; Sr-90; stream sediments; strontium; trace elements; tritium; United States; water quality; water-rock interaction ER - TY - JOUR T1 - Analysis of water level fluctuations in Pajarito Plateau wells AN - 50413705; 2009-057297 JF - Guidebook - New Mexico Geological Society AU - McLin, Stephen G A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 421 EP - 426 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - volcanic rocks KW - igneous rocks KW - pumping KW - Pajarito Plateau KW - unsaturated zone KW - New Mexico KW - Cerros del Rio Basalt KW - ground water KW - Cenozoic KW - sedimentary rocks KW - Santa Fe Group KW - Bandelier Tuff KW - sediments KW - basalt flows KW - fanglomerate KW - Quaternary KW - clastic sediments KW - Puye Formation KW - canyons KW - depth KW - noise KW - aquifers KW - tides KW - water table KW - recharge KW - drawdown KW - transmissivity KW - infiltration KW - Pleistocene KW - atmospheric pressure KW - alluvium KW - seasonal variations KW - water wells KW - water resources KW - clastic rocks KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413705?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Analysis+of+water+level+fluctuations+in+Pajarito+Plateau+wells&rft.au=McLin%2C+Stephen+G&rft.aulast=McLin&rft.aufirst=Stephen&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 23 N1 - PubXState - NM N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - alluvium; aquifers; atmospheric pressure; Bandelier Tuff; basalt flows; canyons; Cenozoic; Cerros del Rio Basalt; clastic rocks; clastic sediments; depth; drawdown; fanglomerate; ground water; igneous rocks; infiltration; New Mexico; noise; Pajarito Plateau; Pleistocene; pumping; Puye Formation; Quaternary; recharge; Santa Fe Group; seasonal variations; sedimentary rocks; sediments; tides; transmissivity; United States; unsaturated zone; volcanic rocks; water resources; water table; water wells ER - TY - JOUR T1 - Earthquake potential and ground shaking hazard at the Los Alamos National Laboratory, New Mexico AN - 50413290; 2009-057263 AB - A four-year program of geologic, seismologic, geophysical and geotechnical investigations recently evaluated the potential seismic hazards at the Los Alamos National Laboratory (LANL). In this study, 25 faults and four seismic source zones were identified as seismic sources potentially significant to LANL in terms of strong ground shaking. The source zones, such as the Rio Grande rift, in which the Laboratory is located, account for the hazard from "background" earthquakes that do not repeatedly rupture the surface and cannot be associated with known faults or tectonic features. All seismic sources were characterized in terms of their location, geometry, maximum magnitude and earthquake recurrence. The three most significant and closest faults to LANL (Pajarito, Guaje Mountain and Rendija Canyon faults, which comprise the Pajarito fault system) were the focus of detailed paleoseismic studies. The main 41-km-long Pajarito fault is located along the western margin of LANL and is a down-to-the-east normal fault, dipping beneath the Laboratory. The size of the maximum earthquake for the Pajarito fault is estimated to be moment magnitude (M (sub w) ) 6.9+ or -0.3 based on empirical relationships for rupture length, rupture area and displacement. The average long-term slip rate for the fault is about 0.1 mm/yr. The subsurface geology beneath LANL was characterized through a program of borehole exploration and velocity measurements, dynamic laboratory testing of borehole samples, and compilation and evaluation of all relevant borehole and geotechnical data. Site-specific geologic and velocity profiles for several LANL facility sites were developed based on these data. These geologic data and the seismic source characterization were input into a probabilistic seismic hazard analysis performed using a logic tree approach. Peak horizontal accelerations estimated for LANL are approximately 0.15, 0.30 and 0.56 g for the return periods of 500, 2000, and 10,000 years, respectively. The dominant seismic source contributing to the hazard at LANL is the Pajarito fault system and, to a lesser extent, the background earthquakes within the Rio Grande rift source zone. JF - Guidebook - New Mexico Geological Society AU - Wong, Ivan G AU - Kelson, Keith I AU - Olig, Susan S AU - Bott, Jacqueline AU - Green, Robert AU - Kolbe, Thomas R AU - Hemphill-Haley, Mark A AU - Gardner, Jamie N AU - Reneau, Steven L AU - Silva, Walter A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 135 EP - 142 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - paleoseismicity KW - geologic hazards KW - peak ground acceleration KW - New Mexico KW - Los Alamos County New Mexico KW - displacements KW - Rio Grande Rift KW - Embudo Fault KW - seismic risk KW - probability KW - Pajarito Fault KW - tectonics KW - active faults KW - faults KW - Rendija Canyon Fault KW - Pajarito fault system KW - North America KW - lineaments KW - statistical analysis KW - Los Alamos National Laboratory KW - rupture KW - ground motion KW - risk assessment KW - Guaje Mountain Fault KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Earthquake+potential+and+ground+shaking+hazard+at+the+Los+Alamos+National+Laboratory%2C+New+Mexico&rft.au=Wong%2C+Ivan+G%3BKelson%2C+Keith+I%3BOlig%2C+Susan+S%3BBott%2C+Jacqueline%3BGreen%2C+Robert%3BKolbe%2C+Thomas+R%3BHemphill-Haley%2C+Mark+A%3BGardner%2C+Jamie+N%3BReneau%2C+Steven+L%3BSilva%2C+Walter&rft.aulast=Wong&rft.aufirst=Ivan&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 28 N1 - PubXState - NM N1 - Document feature - illus. incl. 3 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - active faults; displacements; earthquakes; Embudo Fault; faults; geologic hazards; ground motion; Guaje Mountain Fault; lineaments; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; North America; Pajarito Fault; Pajarito fault system; paleoseismicity; peak ground acceleration; probability; Rendija Canyon Fault; Rio Grande Rift; risk assessment; rupture; seismic risk; statistical analysis; tectonics; United States ER - TY - JOUR T1 - Pliocene and Quaternary history of the Rio Grande, White Rock Canyon and vicinity, New Mexico AN - 50413279; 2009-057285 AB - Surface and subsurface evidence shows that the elevation of the Rio Grande in the vicinity of White Rock Canyon fluctuated greatly during the Pliocene and the Quaternary, influenced by volcanism, tectonism, and climatic changes. After the first appearance of distinctive quartzite-rich fluvial deposits at ca. 4-5 Ma, the Rio Grande incised 250 m or more into rift-filling sediments of the Santa Fe Group. The Rio Grande then aggraded 300 m by about 2.4 Ma, coinciding with eruption of and repeated damming of the river by basaltic lavas of the Cerros del Rio volcanic field. Simultaneous deposition of thick Puye Formation fanglomerates to the north may have been aided by blockage of the valley by the lavas and the resultant rise in local base level. By early Pleistocene the Rio Grande had incised a narrow canyon up to 180 m deep through the western Cerros del Rio field, which was filled first by the Otowi Member of the Bandelier Tuff at 1.61 Ma and then by the Tshirege Member at 1.22 Ma. Both deposits undoubtedly dammed the river, and erosion of the spillways may have generated catastrophic outburst flooding. Notably, the low spot on the 1.22 Ma dam was east of the paleocanyon, forcing the Rio Grande to cut a new channel through 200 m of basaltic rocks to reach its former grade. The resistant basalt probably produced a persistent knickpoint and a local control for base level upriver. Extensive slumps developed in northern White Rock Canyon after the river had incised into mechanically weak sediments beneath basalts, probably beginning in mid-Pleistocene time. Reactivation of slumps in wetter periods in the late Pleistocene repeatedly dammed the river, producing lakes up to 60 m deep and 25 km long. By the early Holocene the Rio Grande was within 5 m of its present grade, and the river has remained near its modern level through the Holocene. JF - Guidebook - New Mexico Geological Society AU - Reneau, Steven L AU - Dethier, David P A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 317 EP - 324 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - White Rock Canyon KW - volcanic rocks KW - erosion KW - paleorelief KW - igneous rocks KW - knickpoints KW - lakes KW - New Mexico KW - Holocene KW - climate change KW - Cenozoic KW - Tshirege Member KW - sedimentary rocks KW - Santa Fe Group KW - Bandelier Tuff KW - volcanism KW - mass movements KW - dams KW - basalts KW - floods KW - tectonics KW - fanglomerate KW - Rio Grande KW - Quaternary KW - drainage KW - aggradation KW - Puye Formation KW - reactivation KW - natural dams KW - slumping KW - landslides KW - Tertiary KW - Neogene KW - Pliocene KW - Pleistocene KW - Otowi Member KW - incised valleys KW - clastic rocks KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Pliocene+and+Quaternary+history+of+the+Rio+Grande%2C+White+Rock+Canyon+and+vicinity%2C+New+Mexico&rft.au=Reneau%2C+Steven+L%3BDethier%2C+David+P&rft.aulast=Reneau&rft.aufirst=Steven&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 41 N1 - PubXState - NM N1 - Document feature - illus. incl. sects., 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - aggradation; Bandelier Tuff; basalts; Cenozoic; clastic rocks; climate change; dams; drainage; erosion; fanglomerate; floods; Holocene; igneous rocks; incised valleys; knickpoints; lakes; landslides; mass movements; natural dams; Neogene; New Mexico; Otowi Member; paleorelief; Pleistocene; Pliocene; Puye Formation; Quaternary; reactivation; Rio Grande; Santa Fe Group; sedimentary rocks; slumping; tectonics; Tertiary; Tshirege Member; United States; volcanic rocks; volcanism; White Rock Canyon ER - TY - JOUR T1 - Magnetotelluric tracing of crustal isotherms under the western margin of the Jemez Mountains using SAGE and industry data AN - 50413273; 2009-057262 AB - The Jemez volcanic field in northern New Mexico is a natural laboratory to study the magnetotelluric (MT) response of sharply-varying, subsurface temperatures across a continental magmatic system. Over 60 geothermal wells provide unusually complete subsurface temperature data. Deep boreholes document that the 300 degrees C isotherm occurs at only 2.0 to 4.5 km depth across the western margin of the Valles caldera. Precambrian basement is present at these depths and is highly resistive (>1000 ohm-m) outside the caldera. However, inversion of MT data maps a deeper (>10 km), upper crustal conductive zone with a geometry that closely matches the pattern of projected isotherms. This change must occur in the ductile portion of the crust since the temperature would be over 450 degrees C. A mechanism that can explain this conductive occurrence is intergranular aqueous fluid connectivity at porosities of less than 1%. The interconnectivity is controlled by the dihedral angle, or the angle subtended by fluid-filled, grain-edge intersections. Experimental results predict water connectivity coincident with an isotherm in a ductile crust under an overlying impermeable cap. The positive correlation between the depth of the upper crustal conductive zone and projected isotherms may have profound rheological implications since aqueous connectivity would result in higher strain rates. Thus, tracing this zone could contribute greatly to understanding of contemporary deformation in the Rio Grande rift. JF - Guidebook - New Mexico Geological Society AU - Jiracek, George R AU - Kinn, Christopher L AU - Scott, Clark L AU - Kuykendall, Martha G AU - Baldridge, W Scott AU - Biehler, Shawn AU - Braile, Lawrence W AU - Ferguson, John F AU - Gilpin, Bernard A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 129 EP - 133 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - electrical conductivity KW - strain KW - geothermal wells KW - New Mexico KW - aqueous solutions KW - temperature KW - magnetotelluric methods KW - carbon dioxide KW - Rio Grande Rift KW - rheology KW - pore pressure KW - Valles Caldera KW - Jemez Mountains KW - water content KW - geothermal gradient KW - North America KW - meteoric water KW - electrical properties KW - diffusion KW - pressure KW - geophysical methods KW - connectivity KW - solubility KW - resistivity KW - deformation KW - teleseismic signals KW - Summer of Applied Geophysical Experience KW - porosity KW - depth KW - boreholes KW - isotherms KW - creep KW - brittle-ductile transition KW - pressure solution KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Magnetotelluric+tracing+of+crustal+isotherms+under+the+western+margin+of+the+Jemez+Mountains+using+SAGE+and+industry+data&rft.au=Jiracek%2C+George+R%3BKinn%2C+Christopher+L%3BScott%2C+Clark+L%3BKuykendall%2C+Martha+G%3BBaldridge%2C+W+Scott%3BBiehler%2C+Shawn%3BBraile%2C+Lawrence+W%3BFerguson%2C+John+F%3BGilpin%2C+Bernard&rft.aulast=Jiracek&rft.aufirst=George&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 33 N1 - PubXState - NM N1 - Document feature - illus. incl. sect., geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - aqueous solutions; boreholes; brittle-ductile transition; carbon dioxide; connectivity; creep; deformation; depth; diffusion; electrical conductivity; electrical properties; geophysical methods; geothermal gradient; geothermal wells; isotherms; Jemez Mountains; magnetotelluric methods; meteoric water; New Mexico; North America; pore pressure; porosity; pressure; pressure solution; resistivity; rheology; Rio Grande Rift; solubility; strain; Summer of Applied Geophysical Experience; teleseismic signals; temperature; United States; Valles Caldera; water content ER - TY - JOUR T1 - Vadose zone infiltration beneath the Pajarito Plateau at Los Alamos National Laboratory AN - 50413244; 2009-057296 AB - We used new Bandelier Tuff core hydraulic properties from seven boreholes to evaluate the direction and amount of flux through the unsaturated zone beneath Los Alamos National Laboratory. The boreholes represent mesa-top and canyon bottom locations, which are the two distinct hydrologic regimes on the Pajarito Plateau. Most head gradients determined for the boreholes are approximately unity, implying that flow is nearly steady state. We use vertical head gradients and unsaturated hydraulic conductivity estimates to approximate infiltration rates for liquid water at several sites. The flux estimates presume that flow is vertical only, thus that no lateral flow is occurring along lithologic interfaces. Apparent fluxes beneath mesa top sites range from 0.006 to 23 cm/yr. High precipitation or surface disturbances, including disposal ponds, lead to higher fluxes beneath some mesas. Hypothesized evaporation resulting from air movement through the mesa apparently creates a barrier to infiltration beneath Mesita del Buey. Apparent canyon bottom infiltration rates are about 0.02 to 0.2 cm/yr beneath two dry canyons, and 0.02 to 0.1 cm/yr beneath Mortandad Canyon, the only relatively wet canyon represented. Canyon bottom infiltration rates beneath wetter canyons such as Los Alamos Canyon are likely much greater, but no data for those sites are currently available. JF - Guidebook - New Mexico Geological Society AU - Rogers, David B AU - Gallaher, Bruce M AU - Vold, Erik L A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 413 EP - 420 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - mesas KW - Mortandad Canyon KW - Mesita del Buey KW - Pajarito Plateau KW - unsaturated zone KW - atmospheric precipitation KW - New Mexico KW - Los Alamos County New Mexico KW - erosion features KW - preferential flow KW - Canada del Buey KW - ground water KW - Cenozoic KW - Bandelier Tuff KW - Potrillo Canyon KW - retention KW - hydrology KW - Quaternary KW - Los Alamos National Laboratory KW - canyons KW - evaporation KW - hydraulic head KW - boreholes KW - infiltration KW - Pleistocene KW - Los Alamos Canyon KW - hydraulic conductivity KW - waste disposal KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Vadose+zone+infiltration+beneath+the+Pajarito+Plateau+at+Los+Alamos+National+Laboratory&rft.au=Rogers%2C+David+B%3BGallaher%2C+Bruce+M%3BVold%2C+Erik+L&rft.aulast=Rogers&rft.aufirst=David&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 19 N1 - PubXState - NM N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; Bandelier Tuff; boreholes; Canada del Buey; canyons; Cenozoic; erosion features; evaporation; ground water; hydraulic conductivity; hydraulic head; hydrology; infiltration; Los Alamos Canyon; Los Alamos County New Mexico; Los Alamos National Laboratory; mesas; Mesita del Buey; Mortandad Canyon; New Mexico; Pajarito Plateau; Pleistocene; Potrillo Canyon; preferential flow; Quaternary; retention; United States; unsaturated zone; waste disposal ER - TY - JOUR T1 - Trace element distributions in the upper Bandelier Tuff, New Mexico; zircon zoning and implications for magmatic evolution of the Valles system AN - 50413227; 2009-057281 AB - Trace element distributions in the upper Bandelier Tuff (UBT) are highly dependent on crystallization of minor minerals such as zircon and chevkinite. Our study concentrates on the systematics of U, Th, Y, Zr, Hf, and the rare earth elements (REE) in individual zircons and bulk-rock pumices. SEM backscattered imaging revealed zoning with signs of truncation and resorption in many but not all zircons from each cooling unit in the UBT. EMP analyses showed compositional changes across zone boundaries, ranging from 0.5 to 0.3 wt% U and Th oxide in the core regions respectively to 0 wt% in the rim regions. SIMS analysis gave corresponding values up to 4600 and 1640 ppm U and Th in the core regions, respectively. Uranium, Th and the heavy REEs for the zircon cores are all enriched with respect to zircon rims, whereas the light REEs show variable results. This data indicates change in the REE budget between the onset of zircon crystallization and eruption of the UBT. Whole-rock INAA data show systematic enrichments of U and Th toward the basal plinian fall unit, which indicates an increase of these elements toward the top of the UBT magma chamber. Using the combined data, we discuss several magmatic processes to explain the observed textural and compositional zoning in the UBT zircons. These include post-eruption vapor phase growth of zircon rims, inheritance of zircon cores from assimilated Precambrian basement, density separation and regrowth in a zoned magma chamber, and inheritance of zircon cores from ancestral Bandelier magmas. We prefer the model in which zoned zircons are related to an ancestral Bandelier magma body. JF - Guidebook - New Mexico Geological Society AU - Werner, Cindy AU - Stimac, James A AU - Hickmott, Donald A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 285 EP - 291 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - silicates KW - neutron activation analysis data KW - ion probe data KW - mass spectra KW - zirconium KW - New Mexico KW - Los Alamos County New Mexico KW - accessory minerals KW - electron probe data KW - Cenozoic KW - assimilation KW - partitioning KW - Bandelier Tuff KW - hafnium KW - crystal zoning KW - Valles Caldera KW - orthosilicates KW - spectra KW - rare earths KW - trace elements KW - zircon group KW - Quaternary KW - zircon KW - Los Alamos National Laboratory KW - nesosilicates KW - metals KW - magmas KW - thorium KW - Pleistocene KW - crystallization KW - uranium KW - actinides KW - SEM data KW - magma chambers KW - yttrium KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Trace+element+distributions+in+the+upper+Bandelier+Tuff%2C+New+Mexico%3B+zircon+zoning+and+implications+for+magmatic+evolution+of+the+Valles+system&rft.au=Werner%2C+Cindy%3BStimac%2C+James+A%3BHickmott%2C+Donald&rft.aulast=Werner&rft.aufirst=Cindy&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 21 N1 - PubXState - NM N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - accessory minerals; actinides; assimilation; Bandelier Tuff; Cenozoic; crystal zoning; crystallization; electron probe data; hafnium; ion probe data; Los Alamos County New Mexico; Los Alamos National Laboratory; magma chambers; magmas; mass spectra; metals; nesosilicates; neutron activation analysis data; New Mexico; orthosilicates; partitioning; Pleistocene; Quaternary; rare earths; SEM data; silicates; spectra; thorium; trace elements; United States; uranium; Valles Caldera; yttrium; zircon; zircon group; zirconium ER - TY - JOUR T1 - The earthquake potential of the Pajarito fault system, New Mexico AN - 50413172; 2009-057264 AB - Geologic mapping, topographic profiling, drilling, and trenching studies were conducted to investigate the earthquake potential of the Pajarito fault system (PFS) as part of a seismic hazard investigation for Los Alamos National Laboratory. This complex, north-striking system of normal faults bounds the Jemez Mountains and forms the active western margin of the Espanola Basin in the Rio Grande rift, New Mexico. The PFS is geomorphically well expressed in early Pleistocene volcanic rocks that erupted from the nearby Valles caldera, but latest Pleistocene and Holocene fault scarps are generally absent, largely because of the sparsity of late Quaternary alluvium along the faults. The main 41-km-long Pajarito fault forms a prominent east-facing escarpment as high as 180 m, offsetting the 1.2 Ma Tshirege member of the Bandelier Tuff down to the east. Topographic profiles on the Pajarito fault suggest average and maximum net vertical tectonic displacements (NVTD) of 81 m and 154 m, yielding average and maximum NVTD rates of 0.07 and 0.13 mm/yr, respectively, for the past 1.2 Ma. The shorter Rendija Canyon and Guaje Mountain faults (9 to 14 km) lie within 5 km to the east of the Pajarito fault and dip steeply to the west. The maximum NVTD estimated for the Rendija Canyon fault of 36 m yields a maximum NVTD rate of 0.03 mm/yr, whereas the average NVTD of 22 m yields an average NVTD rate of 0.02 mm/yr for the past 1.2 Ma. The maximum NVTD estimated for the Guaje Mountain fault of 27 m yields a maximum NVTD rate of 0.03 mm/yr, and an average NVTD of 15 m over the past 1.2 Ma yields an average rate of 0.01 mm/yr. Shorter-term (past 0.3 Ma) vertical separation rates for the Guaje Mountain fault, estimated from offsets of fluvial terraces, range from 0.01 to 0.03 mm/yr. Paleoseismic evidence from nine excavation sites on the PFS suggests complex rupture behavior, including variations in rupture patterns through time and independent rupture behavior of closely-spaced faults. Trenches at the base of the Pajarito fault escarpment exposed indirect stratigraphic and structural evidence for as many as five surface-faulting events, with the youngest event probably having occurred shortly before deposition of the El Cajete pumice, 50 to 60 ka. However, this record is ambiguous and incomplete because the main scarp-forming fault was probably not exposed. Geomorphic, stratigraphic and structural evidence for two or three events on the Guaje Mountain fault since 150 to 300 ka suggests average recurrence intervals between 47 and 300 ka. Stratigraphic and structural evidence for three (possibly four) events on the Rendija Canyon fault since more than 140 ka suggests a preferred recurrence interval of 33 to 66 ka, although if four events did occur, average recurrence intervals would range from 16 to 33 ka. Available data suggest independent rupture behavior between the Rendija Canyon and Guaje Mountain faults. However, it is unknown whether these faults are newly forming rift-bounding structures that rupture independent of the Pajarito fault, or are antithetic faults that rupture dependently with the Pajarito fault. JF - Guidebook - New Mexico Geological Society AU - Olig, Susan S AU - Kelson, Keith I AU - Gardner, Jamie N AU - Reneau, Steven L AU - Hemphill-Haley, Mark A A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 143 EP - 151 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - paleoseismicity KW - geologic hazards KW - landfills KW - waste disposal sites KW - slip rates KW - mapping KW - New Mexico KW - Los Alamos County New Mexico KW - displacements KW - Holocene KW - Rio Grande Rift KW - Cenozoic KW - topography KW - recurrence interval KW - seismic risk KW - Valles Caldera KW - sediments KW - Jemez Mountains KW - Pajarito Fault KW - active faults KW - faults KW - Espanola Basin KW - Rendija Canyon Fault KW - Pajarito fault system KW - North America KW - Quaternary KW - clastic sediments KW - Los Alamos National Laboratory KW - rupture KW - Pleistocene KW - alluvium KW - scarps KW - geomorphology KW - Guaje Mountain Fault KW - earthquakes KW - 19:Seismology KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=The+earthquake+potential+of+the+Pajarito+fault+system%2C+New+Mexico&rft.au=Olig%2C+Susan+S%3BKelson%2C+Keith+I%3BGardner%2C+Jamie+N%3BReneau%2C+Steven+L%3BHemphill-Haley%2C+Mark+A&rft.aulast=Olig&rft.aufirst=Susan&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 38 N1 - PubXState - NM N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - active faults; alluvium; Cenozoic; clastic sediments; displacements; earthquakes; Espanola Basin; faults; geologic hazards; geomorphology; Guaje Mountain Fault; Holocene; Jemez Mountains; landfills; Los Alamos County New Mexico; Los Alamos National Laboratory; mapping; New Mexico; North America; Pajarito Fault; Pajarito fault system; paleoseismicity; Pleistocene; Quaternary; recurrence interval; Rendija Canyon Fault; Rio Grande Rift; rupture; scarps; sediments; seismic risk; slip rates; topography; United States; Valles Caldera; waste disposal sites ER - TY - JOUR T1 - Application of the (super 36) Cl isotopic system to the tracing of hydrothermal fluids at Valles Caldera, New Mexico AN - 50413073; 2009-057303 AB - Valles caldera hosts a high-temperature geothermal system (220-300 degrees C), which has surface expression in hot springs, fumaroles and other features in the area. In order to trace the sources of solutes in the hydrothermal fluids, we analyzed springs and well waters in the region for (super 36) Cl and chloride. The fluids sampled are of two types, one characterized by relative high (super 36) Cl/Cl ratios and low Cl concentrations, and the other with low (super 36) Cl/Cl ratios and high Cl concentrations. The results for the first group (Cl<10 mg/L; (super 36) Cl/Cl of 300-1000X10 (super -15) ) are typical of rainwater, whereas the second group of samples (Cl, 800 to 9400 mg/L; (super 36) Cl/Cl, 11-26X10 (super -15) ) are geothermal brines reflecting longer residence times in the subsurface, with associated leaching of solutes from subsurface sources. The history of the first group of samples is fairly uncomplicated, reflecting the recent meteoric nature of the waters with perhaps some anthropogenic addition, but the second group must derive its salts from non-meteoric sources which are assessed here. We calculated (super 36) Cl/Cl ratios in the major formations in the region, based on estimated subsurface neutron fluxes for these formations. A comparison of calculated (super 36) Cl/Cl ratios with measured (super 36) Cl/Cl ratios in the hydrothermal brines eliminates the Quaternary volcanic rocks that the waters currently reside in as a likely source for chloride in the waters. More likely sources are formations at depth, such as the Precambrian basement and Paleozoic rocks, especially the Madera and Abo Formations. A likely scenario is that meteoric waters penetrate to depths of 2-3 km, and leach solutes from rocks there before coming to reside in near-surface volcanics (residence time <0.1 Ma) after convective upwelling. JF - Guidebook - New Mexico Geological Society AU - Rao, Usha AU - Fehn, Udo AU - Teng, Ray AU - Goff, Fraser A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 463 EP - 468 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - isotopes KW - fumaroles KW - halogens KW - Madera Formation KW - New Mexico KW - Lower Permian KW - ground water KW - radioactive isotopes KW - geothermal systems KW - water-rock interaction KW - Valles Caldera KW - tracers KW - springs KW - chlorine KW - meteoric water KW - Paleozoic KW - human activity KW - Cl-36 KW - Abo Formation KW - solutes KW - convection KW - Permian KW - thermal waters KW - hydrothermal conditions KW - recharge KW - residence time KW - leaching KW - hot springs KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Application+of+the+%28super+36%29+Cl+isotopic+system+to+the+tracing+of+hydrothermal+fluids+at+Valles+Caldera%2C+New+Mexico&rft.au=Rao%2C+Usha%3BFehn%2C+Udo%3BTeng%2C+Ray%3BGoff%2C+Fraser&rft.aulast=Rao&rft.aufirst=Usha&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=463&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 25 N1 - PubXState - NM N1 - Document feature - illus. incl. sect., 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - Abo Formation; chlorine; Cl-36; convection; fumaroles; geothermal systems; ground water; halogens; hot springs; human activity; hydrothermal conditions; isotopes; leaching; Lower Permian; Madera Formation; meteoric water; New Mexico; Paleozoic; Permian; radioactive isotopes; recharge; residence time; solutes; springs; thermal waters; tracers; United States; Valles Caldera; water-rock interaction ER - TY - JOUR T1 - Recharge to the Pajarito Plateau regional aquifer system AN - 50413047; 2009-057295 AB - We present a picture of water balance in the Pajarito Plateau regional aquifer system based on a synthesis of geochemical and water level information and prior work. Assuming that water table rather than confined aquifer conditions apply, depletion of the Pajarito Plateau regional aquifer system based on limited water level data appears to equal total pumping for water supply for the period 1950-1993. This suggests that aquifer recharge could be far smaller than withdrawal of water, and that the resource is being mined. Carbon-14 data indicate that the age of aquifer water ranges from about 1000 to more than 35,000 years and that age increases towards the Rio Grande. These data support the possibility that part of the aquifer is recharged from the Sangre de Cristo Mountains, and that a groundwater divide in the aquifer lies west of the Rio Grande. In other cases, tritium detected at trace levels shows the presence of minor recent recharge to the top of the aquifer, particularly beneath canyons on the Pajarito Plateau. JF - Guidebook - New Mexico Geological Society AU - Rogers, David B AU - Stoker, Alan K AU - McLin, Stephen G AU - Gallaher, Bruce M A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 407 EP - 412 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - isotopes KW - pumping KW - Pajarito Plateau KW - tritium KW - New Mexico KW - Los Alamos County New Mexico KW - preferential flow KW - ground water KW - Cenozoic KW - radioactive isotopes KW - dates KW - carbon KW - age KW - absolute age KW - geochemistry KW - Rio Grande KW - water supply KW - Quaternary KW - water balance KW - Los Alamos National Laboratory KW - aquifers KW - water table KW - recharge KW - hydrogen KW - upper Quaternary KW - C-14 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Recharge+to+the+Pajarito+Plateau+regional+aquifer+system&rft.au=Rogers%2C+David+B%3BStoker%2C+Alan+K%3BMcLin%2C+Stephen+G%3BGallaher%2C+Bruce+M&rft.aulast=Rogers&rft.aufirst=David&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 18 N1 - PubXState - NM N1 - Document feature - illus. incl. sects., 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - absolute age; age; aquifers; C-14; carbon; Cenozoic; dates; geochemistry; ground water; hydrogen; isotopes; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; Pajarito Plateau; preferential flow; pumping; Quaternary; radioactive isotopes; recharge; Rio Grande; tritium; United States; upper Quaternary; water balance; water supply; water table ER - TY - JOUR T1 - Introduction; what are the "hot" earth science projects in the Jemez Mountains region? AN - 50413022; 2009-057257 JF - Guidebook - New Mexico Geological Society AU - Goff, Fraser A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 99 EP - 100 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - volcanic rocks KW - igneous rocks KW - geothermal wells KW - Sandoval County New Mexico KW - New Mexico KW - Los Alamos County New Mexico KW - drinking water KW - areal geology KW - ground water KW - seismic risk KW - Valles Caldera KW - springs KW - Jemez Mountains KW - Jemez Springs New Mexico KW - active faults KW - faults KW - Los Alamos National Laboratory KW - Toledo Caldera KW - thermal waters KW - aquifers KW - geothermal energy KW - Pajarito fault zone KW - waste disposal KW - hot springs KW - water resources KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Introduction%3B+what+are+the+%22hot%22+earth+science+projects+in+the+Jemez+Mountains+region%3F&rft.au=Goff%2C+Fraser&rft.aulast=Goff&rft.aufirst=Fraser&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - NM N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - active faults; aquifers; areal geology; drinking water; faults; geothermal energy; geothermal wells; ground water; hot springs; igneous rocks; Jemez Mountains; Jemez Springs New Mexico; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; Pajarito fault zone; seismic risk; springs; thermal waters; Toledo Caldera; United States; Valles Caldera; volcanic rocks; waste disposal; water resources; Sandoval County New Mexico ER - TY - JOUR T1 - Buried early Pleistocene landscapes beneath the Pajarito Plateau, northern New Mexico AN - 50412850; 2009-057286 AB - This paper describes the early Pleistocene landscapes of the northern and central Pajarito Plateau area prior to the eruption of the Otowi (1.61 Ma) and Tshirege (1.22 Ma) Members of the Bandelier Tuff, and the effects of these eruptions on the landscapes. Borehole and surface outcrop data were used to prepare preliminary pre-Otowi and pre-Tshirege structure contour and bedrock geologic maps, and isopach maps for the Otowi and Tshirege Members. The central part of this area was occupied by a broad SSW-trending valley prior to eruption of the Otowi Member. This early Pleistocene valley was flanked on the west by deeply dissected volcanic highlands of the Sierra de los Valles and on the east by a low north-trending basaltic ridge that stood approximately 500 ft higher than the valley floor. The basaltic ridge was a western extension of the Cerros del Rio volcanic field that was largely buried by the Bandelier Tuff. Gravity data and the lithology of the upper Santa Fe Group suggest that the early Pleistocene valley overlies a Tertiary graben on the western side of the Espanola basin, in turn suggesting an inherited structural control on valley location. Deposition of both the Otowi and the Tshirege Members significantly changed the landscape; subsequent drainage channels were commonly strongly oblique to prior channels and locally were superimposed on prior bedrock highs. Future monitoring wells evaluating the nature and extent of perched ground water systems beneath the Pajarito Plateau, and targeting specific geohydrologic horizons associated with these paleotopographic surfaces, should consider the flow paths controlled by these buried landscapes. JF - Guidebook - New Mexico Geological Society AU - Broxton, David E AU - Reneau, Steven L A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 325 EP - 334 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - volcanic rocks KW - paleorelief KW - igneous rocks KW - Pajarito Plateau KW - New Mexico KW - Cenozoic KW - gravity methods KW - Tshirege Member KW - Santa Fe Group KW - Bandelier Tuff KW - thickness KW - dacites KW - outcrops KW - faults KW - Espanola Basin KW - buried features KW - Quaternary KW - ignimbrite KW - drainage KW - geophysical methods KW - channels KW - Puye Formation KW - grabens KW - pyroclastics KW - boreholes KW - eruptions KW - Pleistocene KW - Otowi Member KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412850?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Buried+early+Pleistocene+landscapes+beneath+the+Pajarito+Plateau%2C+northern+New+Mexico&rft.au=Broxton%2C+David+E%3BReneau%2C+Steven+L&rft.aulast=Broxton&rft.aufirst=David&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 31 N1 - PubXState - NM N1 - Document feature - geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; boreholes; buried features; Cenozoic; channels; dacites; drainage; eruptions; Espanola Basin; faults; geophysical methods; grabens; gravity methods; igneous rocks; ignimbrite; New Mexico; Otowi Member; outcrops; Pajarito Plateau; paleorelief; Pleistocene; Puye Formation; pyroclastics; Quaternary; Santa Fe Group; thickness; Tshirege Member; United States; volcanic rocks ER - TY - JOUR T1 - Temporal and geochemical trends of lavas in White Rock Canyon and the Pajarito Plateau, Jemez volcanic field, New Mexico, USA AN - 50412847; 2009-057277 AB - (super 40) Ar/ (super 39) Ar dates and geochemical analyses provide insights into the geochronology and petrologic evolution of Miocene-Pliocene volcanism in the vicinity of White Rock Canyon and the adjacent Pajarito Plateau. Lava flows and some dikes were sampled from several stratigraphic sections in this area. (super 40) Ar/ (super 39) Ar results indicate 3 distinct pulses of volcanic activities at 9.3,2.8 and 2.6-2.3 Ma. A single 9.3 Ma mugearitic lava flow occurs only locally, whereas the Pliocene volcanism is voluminous, widespread, and geochemically diverse. The earlier (2.8-2.4 Ma) Pliocene lavas are predominantly evolved compositions (hawaiite, mugearite, benmorite, and dacite), whereas the latest (2.5-2.3 Ma) and stratigraphically uppermost flows are entirely tholeiitic basalts. The 9.3 Ma mugearite lava was erupted coevally with intense late Miocene (10-7 Ma) magmatic and tectonic activities in the Jemez volcanic field. The Pliocene (2.8-2.3 Ma) rift-bound volcanism appears to be contemporaneous with initiation of movement along the Pajarito fault zone. Despite temporal similarities and geographic proximity, the geochemical diversity of the White Rock Canyon volcanic rocks reflects different magmatic sources modified by differentiation and crustal contamination. JF - Guidebook - New Mexico Geological Society AU - WoldeGabriel, Giday AU - Laughlin, A William AU - Dethier, David P AU - Heizler, Matthew A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 251 EP - 262 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - alkali basalts KW - White Rock Canyon KW - volcanic rocks KW - igneous rocks KW - Pajarito Plateau KW - New Mexico KW - Cenozoic KW - mugearite KW - chronology KW - major elements KW - dates KW - volcanism KW - basalts KW - absolute age KW - X-ray fluorescence spectra KW - Jemez Mountains KW - dacites KW - tectonics KW - spectra KW - trace elements KW - geochemistry KW - Ar/Ar KW - lava flows KW - magma contamination KW - differentiation KW - Miocene KW - Tertiary KW - intrusions KW - dikes KW - Neogene KW - benmoreite KW - Pliocene KW - hawaiite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Temporal+and+geochemical+trends+of+lavas+in+White+Rock+Canyon+and+the+Pajarito+Plateau%2C+Jemez+volcanic+field%2C+New+Mexico%2C+USA&rft.au=WoldeGabriel%2C+Giday%3BLaughlin%2C+A+William%3BDethier%2C+David+P%3BHeizler%2C+Matthew&rft.aulast=WoldeGabriel&rft.aufirst=Giday&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 28 N1 - PubXState - NM N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - absolute age; alkali basalts; Ar/Ar; basalts; benmoreite; Cenozoic; chronology; dacites; dates; differentiation; dikes; geochemistry; hawaiite; igneous rocks; intrusions; Jemez Mountains; lava flows; magma contamination; major elements; Miocene; mugearite; Neogene; New Mexico; Pajarito Plateau; Pliocene; spectra; tectonics; Tertiary; trace elements; United States; volcanic rocks; volcanism; White Rock Canyon; X-ray fluorescence spectra ER - TY - JOUR T1 - Quartz in post-caldera rhyolites of Valles Caldera, New Mexico; ESR finger printing and discussion of ESR ages AN - 50412835; 2009-057283 AB - The eruption ages and stratigraphic sequence of the youngest members of the Valles Rhyolite are of interest for understanding the Quaternary volcanic history of the Valles caldera and for investigating volcanic hazards. ESR signals due to three types of Ti centers in quartz were employed to clarify the debated stratigraphic sequence found in the VC-1 core. Samples of xenocrystic quartz from the Banco Bonito, El Cajete and Battleship Rock Members have distinctive signal patterns, indicating that each magma had captured quartz grains from different sources, although the major and trace chemical composition of the magmas are similar. Comparing the patterns observed in the samples from the VC-1 core with those in the samples from outcrops, our results generally support the stratigraphic assignments of volcanic units made by Goff and Gardner (1987). The possible problems of ESR ages recently published by Toyoda et al. (1995) are also discussed, concluding that ESR ages of 53+ or -6 ka for the El Cajete Member and 59+ or -6 ka for the Battleship Rock Member, supported by the recent TL age on the El Cajete Member, are presently the best estimates of the eruption ages of these units. JF - Guidebook - New Mexico Geological Society AU - Toyoda, Shin AU - Goff, Fraser A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 303 EP - 309 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - silicates KW - volcanic rocks KW - silica minerals KW - El Cajete Member KW - igneous rocks KW - New Mexico KW - cores KW - Cenozoic KW - age KW - Valles Caldera KW - framework silicates KW - spectra KW - trace elements KW - chemical composition KW - EPR spectra KW - Valles Rhyolite KW - Battleship Rock Member KW - rhyolites KW - Quaternary KW - ignimbrite KW - Banco Bonito Member KW - pyroclastics KW - titanium KW - metals KW - eruptions KW - quartz KW - Pleistocene KW - xenocrysts KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Quartz+in+post-caldera+rhyolites+of+Valles+Caldera%2C+New+Mexico%3B+ESR+finger+printing+and+discussion+of+ESR+ages&rft.au=Toyoda%2C+Shin%3BGoff%2C+Fraser&rft.aulast=Toyoda&rft.aufirst=Shin&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 49 N1 - PubXState - NM N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - age; Banco Bonito Member; Battleship Rock Member; Cenozoic; chemical composition; cores; El Cajete Member; EPR spectra; eruptions; framework silicates; igneous rocks; ignimbrite; metals; New Mexico; Pleistocene; pyroclastics; quartz; Quaternary; rhyolites; silica minerals; silicates; spectra; titanium; trace elements; United States; Valles Caldera; Valles Rhyolite; volcanic rocks; xenocrysts ER - TY - JOUR T1 - In situ tritium production and fluid mean residence times in the two subsystems of the Valles Caldera hydrothermal system, New Mexico AN - 50412764; 2009-057302 AB - Tritium ( (super 3) H) concentrations in precipitation are used to calculate fluid mean residence times using two end-member cases, piston-flow and well-mixed reservoirs. These simplified models using (super 3) H yield relative fluid mean residence times in different portions of the system. In situ (super 3) H production in the reservoir through neutron interaction with (super 6) Li is considered, and only very low levels of (super 3) H ( 0.01 T.U.) contribute to the waters by this process. Calculations using the end-member cases at Valles caldera indicate that mean residence times of geothermal waters in the reservoir are between 3000 and 10,000 yrs, if all post-bomb (super 3) H has entered and mixed with the reservoir waters. The results from this model indicate that the two distinct subsystems of the main reservoir are associated with different fluid mean residence times. Waters in the Redondo Creek subsystem are older (4300 to >10,000 yrs) than waters in the Sulphur Springs subsystem (2000 to 4400 yrs). When accounting for the likelihood that not all post-bomb recharge water has mixed with the reservoir fluids, much younger mean residence times are obtained (660 to 1280 yrs). The oldest water occurs in the Redondo Creek subsystem, but some waters in this subsystem are similar in age to those at Sulphur Springs, possibly suggesting stratification in the reservoir. Comparison of the results of the end-member cases with those obtained using more sophisticated methods indicates that the two end-member cases, with the use of (super 3) H, can provide acceptable limits (order of magnitude) on a fluid's mean residence time and volumes within a reservoir. JF - Guidebook - New Mexico Geological Society AU - Shevenell, Lisa AU - Goff, Fraser A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 455 EP - 461 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - dispersivity KW - numerical models KW - in situ KW - isotopes KW - tritium KW - New Mexico KW - porosity KW - thermal waters KW - hydrothermal conditions KW - ground water KW - recharge KW - radioactive isotopes KW - hydrogen KW - residence time KW - Valles Caldera KW - Sulphur Springs KW - hydraulic conductivity KW - Redondo Creek KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412764?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=In+situ+tritium+production+and+fluid+mean+residence+times+in+the+two+subsystems+of+the+Valles+Caldera+hydrothermal+system%2C+New+Mexico&rft.au=Shevenell%2C+Lisa%3BGoff%2C+Fraser&rft.aulast=Shevenell&rft.aufirst=Lisa&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 34 N1 - PubXState - NM N1 - Document feature - illus. incl. 7 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - dispersivity; ground water; hydraulic conductivity; hydrogen; hydrothermal conditions; in situ; isotopes; New Mexico; numerical models; porosity; radioactive isotopes; recharge; Redondo Creek; residence time; Sulphur Springs; thermal waters; tritium; United States; Valles Caldera ER - TY - JOUR T1 - General soil-landscape relationships and soil-forming processes in the Pajarito Plateau, Los Alamos National Laboratory area, New Mexico AN - 50412732; 2009-057289 AB - Soils in the landscapes of the Pajarito Plateau, located on the east side of the Jemez Mountains of northern New Mexico, have been strongly influenced by the volcanic origin of this ignimbritic plateau. The overall character of many soils in this region ultimately reflects their formation in parent materials with abundant, silicarich volcanic lithologies in a generally semi-arid climate on geomorphically stable landforms. Increases in the degree of soil development in certain properties such as soil reddening and iron oxide accumulation and values of the soil profile development index are largely time-dependent, but climatic variability and slope position have also affected soil development in this region. Chemical weathering explains the development of some soil properties, but the entrapment and incorporation of dust in this semiarid climate can also strongly influence soil development. In upland positions on the Pajarito Plateau, the most recent period of rapid accumulation of eolian material exceeded the rate at which dust could be incorporated within soils, causing the burial of older landscapes and soils on mesa tops. The formation of a very strongly developed soil on mesa tops of the Pajarito Plateau over possibly several hundred thousand years owes to the widespread deposition of alluvium on the underlying, resistant Bandelier Tuff. Such a soil could not have formed in the dense, fractured tuff itself, but could form in the permeable alluvium given the subsequently long interval of surface stability; moreover, the tuff's presence may strongly affect soil forming processes in the alluvium by influencing deeper soil-water movement. The presence of the widespread, welded tuff has also favored the evolution of many narrow, deep canyons that cut the plateau, circumstances generally unfavorable for preservation of older Pleistocene fill terraces. Thus, only weakly or very weakly developed soils typically occur on Holocene terraces and associated colluvial deposits in many canyons. Such soil-landscape patterns markedly contrast in many respects with those typical of other landscapes flanking mountains elsewhere in New Mexico and other areas of the Southwest. JF - Guidebook - New Mexico Geological Society AU - McFadden, Leslie D AU - Watt, Paula Muir AU - Reneau, Steven L AU - McDonald, Eric V A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 357 EP - 365 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - terrestrial environment KW - mesas KW - volcanic rocks KW - igneous rocks KW - semi-arid environment KW - Pajarito Plateau KW - landforms KW - New Mexico KW - Los Alamos County New Mexico KW - erosion features KW - vegetation KW - terraces KW - Holocene KW - Cenozoic KW - Bandelier Tuff KW - silica KW - carbon KW - sediments KW - Jemez Mountains KW - organic carbon KW - climate KW - soils KW - chemical weathering KW - pedogenesis KW - soil profiles KW - Quaternary KW - cation exchange capacity KW - colluvium KW - clastic sediments KW - ignimbrite KW - landform evolution KW - Los Alamos National Laboratory KW - weathering KW - pyroclastics KW - parent materials KW - Pleistocene KW - alluvium KW - geomorphology KW - landscapes KW - 24:Quaternary geology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=General+soil-landscape+relationships+and+soil-forming+processes+in+the+Pajarito+Plateau%2C+Los+Alamos+National+Laboratory+area%2C+New+Mexico&rft.au=McFadden%2C+Leslie+D%3BWatt%2C+Paula+Muir%3BReneau%2C+Steven+L%3BMcDonald%2C+Eric+V&rft.aulast=McFadden&rft.aufirst=Leslie&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 69 N1 - PubXState - NM N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - alluvium; Bandelier Tuff; carbon; cation exchange capacity; Cenozoic; chemical weathering; clastic sediments; climate; colluvium; erosion features; geomorphology; Holocene; igneous rocks; ignimbrite; Jemez Mountains; landform evolution; landforms; landscapes; Los Alamos County New Mexico; Los Alamos National Laboratory; mesas; New Mexico; organic carbon; Pajarito Plateau; parent materials; pedogenesis; Pleistocene; pyroclastics; Quaternary; sediments; semi-arid environment; silica; soil profiles; soils; terraces; terrestrial environment; United States; vegetation; volcanic rocks; weathering ER - TY - JOUR T1 - Reservoir geochemistry from flow tests of scientific core holes, Sulphur Springs, Valles Caldera AN - 50412705; 2009-057249 JF - Guidebook - New Mexico Geological Society AU - Janik, Cathy J AU - Goff, Fraser A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 52 EP - 53 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - volcanic rocks KW - igneous rocks KW - geothermal wells KW - halogens KW - water vapor KW - New Mexico KW - metasomatism KW - temperature KW - carbon dioxide KW - Cenozoic KW - Santa Fe Group KW - geothermal systems KW - enthalpy KW - Bandelier Tuff KW - sampling KW - circulation KW - chloride ion KW - Valles Caldera KW - hydrothermal alteration KW - geochemistry KW - chlorine KW - Quaternary KW - gaseous phase KW - ignimbrite KW - pyroclastics KW - volatiles KW - geothermal reservoirs KW - Continental Scientific Drilling Program KW - boreholes KW - Sulphur Springs KW - Pleistocene KW - Otowi Member KW - flow tests KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412705?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Reservoir+geochemistry+from+flow+tests+of+scientific+core+holes%2C+Sulphur+Springs%2C+Valles+Caldera&rft.au=Janik%2C+Cathy+J%3BGoff%2C+Fraser&rft.aulast=Janik&rft.aufirst=Cathy&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=52&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - NM N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; boreholes; carbon dioxide; Cenozoic; chloride ion; chlorine; circulation; Continental Scientific Drilling Program; enthalpy; flow tests; gaseous phase; geochemistry; geothermal reservoirs; geothermal systems; geothermal wells; halogens; hydrothermal alteration; igneous rocks; ignimbrite; metasomatism; New Mexico; Otowi Member; Pleistocene; pyroclastics; Quaternary; sampling; Santa Fe Group; Sulphur Springs; temperature; United States; Valles Caldera; volatiles; volcanic rocks; water vapor ER - TY - JOUR T1 - A conceptual model for flow in the vadose zone beneath the finger mesas of the Pajarito Plateau AN - 50412700; 2009-057252 JF - Guidebook - New Mexico Geological Society AU - Turin, H J AU - Rosenberg, N D A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 74 EP - 76 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - halides KW - mesas KW - volcanic rocks KW - moisture KW - igneous rocks KW - Pajarito Plateau KW - waste disposal sites KW - unsaturated zone KW - New Mexico KW - erosion features KW - Cenozoic KW - fractures KW - sedimentary rocks KW - Bandelier Tuff KW - gypsum KW - movement KW - tracers KW - chlorides KW - tuff KW - water KW - hydrology KW - migration KW - chemically precipitated rocks KW - Quaternary KW - sulfates KW - evapotranspiration KW - evaporites KW - canyons KW - halite KW - pyroclastics KW - evaporation KW - infiltration KW - theoretical models KW - Pleistocene KW - meltwater KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=A+conceptual+model+for+flow+in+the+vadose+zone+beneath+the+finger+mesas+of+the+Pajarito+Plateau&rft.au=Turin%2C+H+J%3BRosenberg%2C+N+D&rft.aulast=Turin&rft.aufirst=H&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - NM N1 - Document feature - block diags. N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; canyons; Cenozoic; chemically precipitated rocks; chlorides; erosion features; evaporation; evaporites; evapotranspiration; fractures; gypsum; halides; halite; hydrology; igneous rocks; infiltration; meltwater; mesas; migration; moisture; movement; New Mexico; Pajarito Plateau; Pleistocene; pyroclastics; Quaternary; sedimentary rocks; sulfates; theoretical models; tracers; tuff; United States; unsaturated zone; volcanic rocks; waste disposal sites; water ER - TY - JOUR T1 - Natural major and trace element background geochemistry of selected soil profiles, Los Alamos, New Mexico AN - 50412682; 2009-057291 AB - Background-elemental concentrations for 24 metals and nonmetals relevant to the Environmental Restoration Project at Los Alamos National Laboratory were determined for a variety of soils and geomorphic settings across the Pajarito Plateau. Approximately 175 soil samples were analyzed for background-elemental concentrations using HNO (sub 3) (leachable element concentration) and HF (total element concentration) sample digestion techniques. Leachable background elemental concentrations in soils provide information for risk calculations relevant to the bioavailability of elements. Background-elemental concentrations in soils on the Pajarito Plateau generally vary with parent material, the degree of soil development, and other factors. Soil B horizons typically have higher concentrations of several trace elements, including As, Be, Th, and U, relative to soil A and C horizons. Higher concentrations of these trace elements in B horizons may be due to higher abundances of chemically active phases that enhance the adsorption of metals, such as ferric (oxy)hydroxides and clay minerals. Variations in soil-elemental concentrations may also be related to mineralogical variations in soil parent materials. Background-elemental soil data are used to determine possible contamination or to establish clean-up levels based on the calculation of a horizon-specific upper tolerance limit (UTL) for each element. JF - Guidebook - New Mexico Geological Society AU - McDonald, Eric V AU - Longmire, Patrick A AU - Watt, Paula Muir AU - Ryti, Randall T AU - Reneau, Steven L A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 375 EP - 382 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - Pajarito Plateau KW - characterization KW - bioavailability KW - New Mexico KW - Los Alamos County New Mexico KW - Los Alamos New Mexico KW - environmental effects KW - Cenozoic KW - Bandelier Tuff KW - major elements KW - leachate KW - horizons KW - trace elements KW - geochemistry KW - soils KW - alkaline earth metals KW - pedogenesis KW - soil profiles KW - Quaternary KW - statistical analysis KW - arsenic KW - adsorption KW - metals KW - parent materials KW - thorium KW - Pleistocene KW - uranium KW - actinides KW - beryllium KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Natural+major+and+trace+element+background+geochemistry+of+selected+soil+profiles%2C+Los+Alamos%2C+New+Mexico&rft.au=McDonald%2C+Eric+V%3BLongmire%2C+Patrick+A%3BWatt%2C+Paula+Muir%3BRyti%2C+Randall+T%3BReneau%2C+Steven+L&rft.aulast=McDonald&rft.aufirst=Eric&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=375&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 28 N1 - PubXState - NM N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - actinides; adsorption; alkaline earth metals; arsenic; Bandelier Tuff; beryllium; bioavailability; Cenozoic; characterization; environmental effects; geochemistry; horizons; leachate; Los Alamos County New Mexico; Los Alamos New Mexico; major elements; metals; New Mexico; Pajarito Plateau; parent materials; pedogenesis; Pleistocene; Quaternary; soil profiles; soils; statistical analysis; thorium; trace elements; United States; uranium ER - TY - JOUR T1 - Late Pleistocene and possibly Holocene displacement along the Rendija Canyon Fault, Los Alamos County, New Mexico AN - 50412605; 2009-057265 AB - The Rendija Canyon fault is an integral part of the Pajarito fault system, which forms the active western margin of the Espanola Basin in the Rio Grande rift. As part of a paleoseismic study, we excavated two exploratory trenches across the central part of the fault. These trenches exposed faulted alluvium overlain by two packages of scarp-derived colluvial deposits that resulted from degradation of a scarp produced by west-down normal displacement on the Rendija Canyon fault. Each colluvial package contains a lower, discontinuous debris facies close to the fault, and an upper, fine-grained wash facies. Ages of the alluvial and colluvial deposits are estimated from radiocarbon and luminescence analyses, and relative soil development. The trench exposures provided evidence of at least three and possibly as many as five surface-faulting events, with the oldest of these occurring prior to about 140 ka. Three or four events occurred since deposition of a colluvium that is more than 140+ or -26 ka. The most recent rupture occurred at about 9 or 23 ka, indicating a latest Pleistocene or early Holocene event along the fault. The thickness of the upper colluvial package suggests 2.0+ or -0.5 m of vertical displacement during the most recent paleoearthquake. We estimate an average recurrence interval for surface-rupture earthquakes of between 33 and 66 ka from age estimates of scarp-derived colluvium, and an interval of about 38 to 83 ka from long-term slip rate and displacement-per-event data. The timing of the most recent earthquake on the Rendija Canyon fault suggests that it may rupture independently from the nearby Guaje Mountain fault, which has also been active during the Holocene. JF - Guidebook - New Mexico Geological Society AU - Kelson, Keith I AU - Hemphill-Haley, Mark A AU - Olig, Susan S AU - Simpson, Gary D AU - Gardner, Jamie N AU - Reneau, Steven L AU - Kolbe, Thomas R AU - Forman, Steven L AU - Wong, Ivan G A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 153 EP - 160 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - paleoseismicity KW - geologic hazards KW - slip rates KW - thermoluminescence KW - New Mexico KW - Los Alamos County New Mexico KW - displacements KW - Holocene KW - upper Pleistocene KW - Rio Grande Rift KW - Cenozoic KW - recurrence interval KW - seismic risk KW - sediments KW - tectonics KW - active faults KW - faults KW - Espanola Basin KW - soils KW - Rendija Canyon Fault KW - Pajarito fault system KW - North America KW - trenching KW - Quaternary KW - colluvium KW - clastic sediments KW - Los Alamos National Laboratory KW - rupture KW - Pleistocene KW - alluvium KW - scarps KW - Guaje Mountain Fault KW - earthquakes KW - 24:Quaternary geology KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Late+Pleistocene+and+possibly+Holocene+displacement+along+the+Rendija+Canyon+Fault%2C+Los+Alamos+County%2C+New+Mexico&rft.au=Kelson%2C+Keith+I%3BHemphill-Haley%2C+Mark+A%3BOlig%2C+Susan+S%3BSimpson%2C+Gary+D%3BGardner%2C+Jamie+N%3BReneau%2C+Steven+L%3BKolbe%2C+Thomas+R%3BForman%2C+Steven+L%3BWong%2C+Ivan+G&rft.aulast=Kelson&rft.aufirst=Keith&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 15 N1 - PubXState - NM N1 - Document feature - illus. incl. sects., 2 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - active faults; alluvium; Cenozoic; clastic sediments; colluvium; displacements; earthquakes; Espanola Basin; faults; geologic hazards; Guaje Mountain Fault; Holocene; Los Alamos County New Mexico; Los Alamos National Laboratory; New Mexico; North America; Pajarito fault system; paleoseismicity; Pleistocene; Quaternary; recurrence interval; Rendija Canyon Fault; Rio Grande Rift; rupture; scarps; sediments; seismic risk; slip rates; soils; tectonics; thermoluminescence; trenching; United States; upper Pleistocene ER - TY - JOUR T1 - Geology of the northern Valles Caldera and Toledo Embayment, New Mexico AN - 50412563; 2009-057273 AB - Detailed geologic mapping supported by geochronology and petrography shows that the northern Valles caldera records a complex history of pre-caldera volcanism and Rio Grande rift-related sedimentation, caldera collapse and mass wasting, ring-fracture volcanism and structurally focused volcanism within the Toledo embayment, and formation of intracaldera lacustrine deposits and alluvial terraces. The prominent northeastern grain of the Jemez lineament is locally defined by the Jemez fault zone, Redondo Creek graben, Toledo embayment, a structural discontinuity, the Embudo fault zone, and short faults in the map area. The main ring fracture collapse structures of the Toledo and Valles calderas were nearly coincident. Although the origin of the Toledo embayment is not entirely resolved, geologic arguments constrain its formation between 2.3 and 1.5 Ma. Based on geomorphic and other field relations of domes and flows, the structural history of the area, and timing constraints, we argue that the Toledo embayment formed during collapse of the Toledo caldera (1.61 Ma) along a structurally controlled zone that had hosted a northeasterly-elongated offshoot from the main Toledo caldera magma body. Field and laboratory data suggest that the hypabyssal rocks of the Cerro Rubio hills are shallow remnants of earlier Tschicoma volcanoes that covered the present area of the embayment before formation of Toledo caldera. The embayment became the site of structurally focused rhyolitic extrusions and explosive eruptions after caldera formation. JF - Guidebook - New Mexico Geological Society AU - Gardner, Jamie N AU - Goff, Fraser A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 225 EP - 230 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - volcanic rocks KW - collapse structures KW - igneous rocks KW - lakes KW - mapping KW - Toledo Embayment KW - New Mexico KW - terraces KW - crater lakes KW - metasomatism KW - areal geology KW - explosive eruptions KW - Tschicoma Formation KW - soft sediment deformation KW - Cenozoic KW - fractures KW - Bandelier Tuff KW - volcanism KW - mass movements KW - age KW - Valles Caldera KW - sediments KW - hydrothermal alteration KW - tectonics KW - sedimentary structures KW - Valles Rhyolite KW - rhyolites KW - Quaternary KW - clastic sediments KW - landslides KW - Tertiary KW - Paliza Canyon Formation KW - Neogene KW - concentric fractures KW - lacustrine environment KW - Pliocene KW - Pleistocene KW - petrography KW - alluvium KW - Jemez Lineament KW - geomorphology KW - domes KW - Cerro Toledo Rhyolite KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Geology+of+the+northern+Valles+Caldera+and+Toledo+Embayment%2C+New+Mexico&rft.au=Gardner%2C+Jamie+N%3BGoff%2C+Fraser&rft.aulast=Gardner&rft.aufirst=Jamie&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 40 N1 - PubXState - NM N1 - Document feature - geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - age; alluvium; areal geology; Bandelier Tuff; Cenozoic; Cerro Toledo Rhyolite; clastic sediments; collapse structures; concentric fractures; crater lakes; domes; explosive eruptions; fractures; geomorphology; hydrothermal alteration; igneous rocks; Jemez Lineament; lacustrine environment; lakes; landslides; mapping; mass movements; metasomatism; Neogene; New Mexico; Paliza Canyon Formation; petrography; Pleistocene; Pliocene; Quaternary; rhyolites; sedimentary structures; sediments; soft sediment deformation; tectonics; terraces; Tertiary; Toledo Embayment; Tschicoma Formation; United States; Valles Caldera; Valles Rhyolite; volcanic rocks; volcanism ER - TY - JOUR T1 - Volcaniclastic rocks of the Keres Group; insights into mid-Miocene volcanism and sedimentation in the southeastern Jemez Mountains AN - 50412537; 2009-057271 AB - Volcaniclastic rocks of the Keres Group (13-6 Ma; Gardner et al., 1986) in the southeastern Jemez Mountains consist of autoclastic flow breccias, pyroclastic-flow deposits, and debris-flow, hyperconcentrated-flow, and streamflow deposits that were deposited primarily between 11 and 9 Ma. Volcaniclastic sediments are interbedded with pyroclastic-flow and fall deposits and lava flows of the Paliza Canyon Formation, and are derived primarily from basalts, andesites and dacites of the Paliza Canyon Formation. Channel orientations and thickness of volcaniclastic sediments suggest that most of the sediments were derived from the northeast. Volcaniclastic sediments near Boundary Peak are interbedded with several pyroclastic-flow deposits and andesitic lava flows indicating proximity to eruptive centers. The much thicker volcaniclastic sediments in Sanchez Canyon, to the southwest, are dominated by shallow braided stream deposits, typical of volcaniclastic aprons, and are in part the distal equivalent of deposits near Boundary Peak. The greater accumulation of volcaniclastic sediments in Sanchez Canyon also may have been accommodated by faulting. Volcaniclastic sediments in Cochiti Canyon are channeled into cone-forming andesitic flow breccias, but were largely derived from andesitic and dacitic sources to the northeast. The lack of interbedded rhyolitic pyroclastic deposits, and sparsity of rhyolite clasts in sediments suggests that there was little or no explosive rhyolitic volcanism during this time or that rhyolites were deposited elsewhere. JF - Guidebook - New Mexico Geological Society AU - Lavine, Alexis AU - Smith, Gary A AU - Goff, Fraser AU - McIntosh, William C A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 211 EP - 218 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - andesites KW - volcanic rocks KW - slopes KW - igneous rocks KW - Cochiti Canyon KW - New Mexico KW - debris flows KW - Cenozoic KW - volcaniclastics KW - pyroclastic flows KW - dates KW - volcanism KW - normal faults KW - mass movements KW - basalts KW - absolute age KW - thickness KW - Jemez Mountains KW - dacites KW - tectonics KW - faults KW - orientation KW - rhyolites KW - Keres Group KW - breccia KW - lava flows KW - sediment transport KW - Sanchez Canyon KW - sedimentation KW - middle Miocene KW - channels KW - correlation KW - distribution KW - Miocene KW - flows KW - Tertiary KW - K/Ar KW - streamflow KW - Paliza Canyon Formation KW - Neogene KW - Boundary Peak KW - facies KW - 12:Stratigraphy KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Volcaniclastic+rocks+of+the+Keres+Group%3B+insights+into+mid-Miocene+volcanism+and+sedimentation+in+the+southeastern+Jemez+Mountains&rft.au=Lavine%2C+Alexis%3BSmith%2C+Gary+A%3BGoff%2C+Fraser%3BMcIntosh%2C+William+C&rft.aulast=Lavine&rft.aufirst=Alexis&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 16 N1 - PubXState - NM N1 - Document feature - illus. incl. block diags., strat. cols., 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - absolute age; andesites; basalts; Boundary Peak; breccia; Cenozoic; channels; Cochiti Canyon; correlation; dacites; dates; debris flows; distribution; facies; faults; flows; igneous rocks; Jemez Mountains; K/Ar; Keres Group; lava flows; mass movements; middle Miocene; Miocene; Neogene; New Mexico; normal faults; orientation; Paliza Canyon Formation; pyroclastic flows; rhyolites; Sanchez Canyon; sediment transport; sedimentation; slopes; streamflow; tectonics; Tertiary; thickness; United States; volcanic rocks; volcaniclastics; volcanism ER - TY - JOUR T1 - New evidence for the age of the youngest eruptions in the Valles Caldera, New Mexico AN - 50332324; 1996-007243 AB - New geochronologic data provide evidence for an age of about 50 to 60 ka for the youngest volcanic eruptions within the Valles caldera, New Mexico--an age that is significantly younger than most previous age determinations. Thermoluminescence age estimates for buried soils beneath the El Cajete pumice, a key stratigraphic marker in the region, range from 48 to 61 ka, and (super 14) C analyses of burnt logs within volcanic surge beds near the El Cajete vent yield similar ages of 50 to >58 ka. These data conflict with fission-track, (super 40) Ar/ (super 39) Ar, and K-Ar ages of 130 to >200 ka, but are supported by recent analyses by electron spin resonance. The results of this study reinforce the need to apply a variety of dating methods when evaluating the age of young volcanic events and support the hypothesis that the El Cajete eruptions were part of a new cycle of volcanic activity in the Valles caldera after an exceptionally long period of quiescence of approximately 460 ka. The new age constraints also suggest a previously unrecognized link between cycles of volcanism and pulses of hydrothermal activity in the caldera, such that hydrothermal outflow appears to decrease significantly following completion of eruptive cycles. JF - Geology (Boulder) AU - Reneau, Steven L AU - Gardner, Jamie N AU - Forman, Steven L Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 7 EP - 10 PB - Geological Society of America (GSA), Boulder, CO VL - 24 IS - 1 SN - 0091-7613, 0091-7613 KW - United States KW - cycles KW - wood KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Sandoval County New Mexico KW - thermoluminescence KW - New Mexico KW - El Cajete Vent KW - upper Pleistocene KW - Cenozoic KW - volcanic features KW - radioactive isotopes KW - geochronology KW - dates KW - carbon KW - Valles Caldera KW - absolute age KW - paleosols KW - vents KW - tephrochronology KW - marker beds KW - Quaternary KW - northern New Mexico KW - calderas KW - pyroclastics KW - key beds KW - eruptions KW - pumice KW - Pleistocene KW - C-14 KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50332324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=New+evidence+for+the+age+of+the+youngest+eruptions+in+the+Valles+Caldera%2C+New+Mexico&rft.au=Reneau%2C+Steven+L%3BGardner%2C+Jamie+N%3BForman%2C+Steven+L&rft.aulast=Reneau&rft.aufirst=Steven&rft.date=1996-01-01&rft.volume=24&rft.issue=1&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281996%290242.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 24 N1 - PubXState - CO N1 - Document feature - illus. incl. sects., 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - absolute age; C-14; calderas; carbon; Cenozoic; cycles; dates; El Cajete Vent; eruptions; geochronology; igneous rocks; isotopes; key beds; marker beds; New Mexico; northern New Mexico; paleosols; Pleistocene; pumice; pyroclastics; Quaternary; radioactive isotopes; Sandoval County New Mexico; tephrochronology; thermoluminescence; United States; upper Pleistocene; Valles Caldera; vents; volcanic features; volcanic rocks; wood DO - http://dx.doi.org/10.1130/0091-7613(1996)024<0007:NEFTAO>2.3.CO;2 ER - TY - JOUR T1 - Field excursions to the Jemez Mountains, New Mexico AN - 50320368; 1999-068808 JF - Bulletin - New Mexico Bureau of Geology & Mineral Resources AU - Self, Stephen AU - Heiken, Grant AU - Sykes, Martha L AU - Wohletz, Kenneth AU - Fisher, Richard V AU - Dethier, David P Y1 - 1996 PY - 1996 DA - 1996 SP - 72 PB - New Mexico Bureau of Mines and Mineral Resources, Socorro, NM SN - 0096-4581, 0096-4581 KW - United States KW - White Rock Canyon KW - volcanic rocks KW - igneous rocks KW - guidebook KW - Sandoval County New Mexico KW - field trips KW - New Mexico KW - areal geology KW - road log KW - Rio Grande Rift KW - Cenozoic KW - volcanic features KW - Bandelier Tuff KW - Valles Caldera KW - Jemez Mountains KW - tuff KW - tectonics KW - Tewa Group KW - North America KW - Quaternary KW - ignimbrite KW - pipes KW - calderas KW - pyroclastics KW - intrusions KW - eruptions KW - pumice KW - maars KW - volcanoes KW - Pleistocene KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50320368?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Self%2C+Stephen%3BHeiken%2C+Grant%3BSykes%2C+Martha+L%3BWohletz%2C+Kenneth%3BFisher%2C+Richard+V%3BDethier%2C+David+P&rft.aulast=Self&rft.aufirst=Stephen&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Field+excursions+to+the+Jemez+Mountains%2C+New+Mexico&rft.title=Field+excursions+to+the+Jemez+Mountains%2C+New+Mexico&rft.issn=00964581&rft_id=info:doi/ L2 - http://geoinfo.nmt.edu/publications/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 103 N1 - PubXState - NM N1 - Document feature - illus. incl. sects., strat. cols., 3 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NEXBAJ N1 - SubjectsTermNotLitGenreText - areal geology; Bandelier Tuff; calderas; Cenozoic; eruptions; field trips; guidebook; igneous rocks; ignimbrite; intrusions; Jemez Mountains; maars; New Mexico; North America; pipes; Pleistocene; pumice; pyroclastics; Quaternary; Rio Grande Rift; road log; Sandoval County New Mexico; tectonics; Tewa Group; tuff; United States; Valles Caldera; volcanic features; volcanic rocks; volcanoes; White Rock Canyon ER - TY - JOUR T1 - Carbon 14 measurements of the Martian atmosphere as an indicator of atmosphere-regolith exchange of CO (sub 2) AN - 50153373; 1997-012450 AB - A determination of the mixing ratio of (super 14) CO (sub 2) in the Martian atmosphere would provide a direct measurement of the degree of exchange of CO (sub 2) in the Martian atmosphere with CO (sub 2) in the regolith and polar caps. This is the case because production of (super 14) C occurs in the atmosphere and in the very-near-surface regolith and decays away in a timescale of 10 (super 4) years. The resulting steady state abundance in the atmosphere can be diluted by mixing with nonatmospheric reservoirs. The degree of mixing expected is such that an order-of-magnitude measurement would provide definitive information on the state of the regolith. Although in situ measurements probably are not possible, determination could be made easily on a sample of pristine Martian atmosphere returned to the Earth. Copyright 1996 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Jakosky, Bruce M AU - Reedy, Robert C AU - Masarik, J Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 2 EP - 2,252 PB - American Geophysical Union, Washington, DC VL - 101 IS - E1 SN - 0148-0227, 0148-0227 KW - isotopes KW - atmosphere KW - Mars KW - polar caps KW - carbon dioxide KW - terrestrial planets KW - planets KW - radioactive isotopes KW - carbon KW - C-14 KW - geochemistry KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50153373?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Carbon+14+measurements+of+the+Martian+atmosphere+as+an+indicator+of+atmosphere-regolith+exchange+of+CO+%28sub+2%29&rft.au=Jakosky%2C+Bruce+M%3BReedy%2C+Robert+C%3BMasarik%2C+J&rft.aulast=Jakosky&rft.aufirst=Bruce&rft.date=1996-01-01&rft.volume=101&rft.issue=E1&rft.spage=2&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F95JE03362 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; C-14; carbon; carbon dioxide; geochemistry; isotopes; Mars; planets; polar caps; radioactive isotopes; regolith; terrestrial planets DO - http://dx.doi.org/10.1029/95JE03362 ER - TY - JOUR T1 - Runoff and erosion on the Pajarito Plateau; observation from the field AN - 50150725; 2009-057299 AB - Sites within the Pajarito Plateau have widespread, if low levels, of surface contamination. The major mechanism by which contaminants are moved and redistributed is surface runoff and associated soil erosion. To better understand the processes involved, we have been making detailed measurements of water and sediment movement at three sites across the plateau, one located in a ponderosa pine forest, one in a stable pinyon-juniper woodland, and one in a rapidly eroding pinyon-juniper woodland. For the ponderosa pine site, both surface runoff (overland flow) and subsurface runoff (interflow) are important. Overland flow can be generated by intense summer rain storms, more gentle frontal storms, or snowmelt while soils are frozen; interflow, although generated mostly by melting snow, can occur any time of the year. For the pinyon-juniper sites, the most important producer of runoff is summer thunderstorms, but at all scales snowmelt runoff can be important as well. The rapidly eroding pinyon-juniper site produces more runoff than the stable pinyon-juniper site and hundreds of times more erosion than either the stable pinyon-juniper or the ponderosa site. These long-term studies are providing a better conceptual understanding of runoff and erosion on the Pajarito Plateau and other similar semiarid regions and enabling better assessments of the potential for contaminant transport in these systems. JF - Guidebook - New Mexico Geological Society AU - Wilcox, Bradford P AU - Newman, Brent D AU - Allen, Craig D AU - Reid, Kevin D AU - Brandes, David AU - Pitlich, John AU - Davenport, David W A2 - Goff, Fraser A2 - Kues, Barry S. A2 - Rogers, Margaret Anne A2 - McFadden, Leslie D. A2 - Gardner, Jamie N. Y1 - 1996 PY - 1996 DA - 1996 SP - 433 EP - 439 PB - New Mexico Geological Society, Socorro, NM VL - 47 SN - 0077-8567, 0077-8567 KW - United States KW - solute transport KW - erosion KW - pollutants KW - Pajarito Plateau KW - New Mexico KW - vegetation KW - snow KW - runoff KW - storms KW - soil erosion KW - slope stability KW - meltwater KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50150725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Guidebook+-+New+Mexico+Geological+Society&rft.atitle=Runoff+and+erosion+on+the+Pajarito+Plateau%3B+observation+from+the+field&rft.au=Wilcox%2C+Bradford+P%3BNewman%2C+Brent+D%3BAllen%2C+Craig+D%3BReid%2C+Kevin+D%3BBrandes%2C+David%3BPitlich%2C+John%3BDavenport%2C+David+W&rft.aulast=Wilcox&rft.aufirst=Bradford&rft.date=1996-01-01&rft.volume=47&rft.issue=&rft.spage=433&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society forty-seventh annual field conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 11 N1 - PubXState - NM N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - NMGGA5 N1 - SubjectsTermNotLitGenreText - erosion; field studies; meltwater; New Mexico; Pajarito Plateau; pollutants; runoff; slope stability; snow; soil erosion; solute transport; storms; United States; vegetation ER - TY - JOUR T1 - Redistribution of Pb during eruption, devitrification and vapor-phase crystallization of the Bandelier Tuff, New Mexico AN - 50088672; 2010-019983 JF - Program with Abstracts - Geological Association of Canada; Mineralogical Association of Canada: Joint Annual Meeting AU - Stimac, J A AU - Larocque, A C L AU - Abell, R AU - Hickmott, D AU - Broxton, D AU - Gauerke, E AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 1 PB - Geological Association of Canada, Waterloo, ON VL - 21 SN - 0701-8738, 0701-8738 KW - United States KW - volcanic rocks KW - Quaternary KW - pollutants KW - ignimbrite KW - igneous rocks KW - pollution KW - lead KW - New Mexico KW - environmental analysis KW - Cenozoic KW - spatial distribution KW - pyroclastics KW - volatiles KW - devitrification KW - Bandelier Tuff KW - metals KW - eruptions KW - vitrification KW - Pleistocene KW - trace metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50088672?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+with+Abstracts+-+Geological+Association+of+Canada%3B+Mineralogical+Association+of+Canada%3A+Joint+Annual+Meeting&rft.atitle=Redistribution+of+Pb+during+eruption%2C+devitrification+and+vapor-phase+crystallization+of+the+Bandelier+Tuff%2C+New+Mexico&rft.au=Stimac%2C+J+A%3BLarocque%2C+A+C+L%3BAbell%2C+R%3BHickmott%2C+D%3BBroxton%2C+D%3BGauerke%2C+E%3BAnonymous&rft.aulast=Stimac&rft.aufirst=J&rft.date=1996-01-01&rft.volume=21&rft.issue=&rft.spage=A91&rft.isbn=&rft.btitle=&rft.title=Program+with+Abstracts+-+Geological+Association+of+Canada%3B+Mineralogical+Association+of+Canada%3A+Joint+Annual+Meeting&rft.issn=07018738&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Association of Canada, Mineralogical Association of Canada; joint annual meeting--Association geologique du Canada, Association mineralogique du Canada; reunion annuelle conjointe N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - PubXState - ON N1 - Last updated - 2012-06-07 N1 - CODEN - PAACD6 N1 - SubjectsTermNotLitGenreText - Bandelier Tuff; Cenozoic; devitrification; environmental analysis; eruptions; igneous rocks; ignimbrite; lead; metals; New Mexico; Pleistocene; pollutants; pollution; pyroclastics; Quaternary; spatial distribution; trace metals; United States; vitrification; volatiles; volcanic rocks ER - TY - JOUR T1 - Entrainment of country rock during basaltic eruptions of the Lucero volcanic field, New Mexico AN - 50074685; 1996-012521 JF - Journal of Geology AU - Valentine, Greg A AU - Groves, Kristelle R Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 71 EP - 90 PB - University of Chicago Press, Chicago, IL VL - 104 IS - 1 SN - 0022-1376, 0022-1376 KW - water KW - United States KW - volcanic rocks KW - igneous rocks KW - New Mexico KW - volcanic fields KW - Valencia County New Mexico KW - country rocks KW - intrusions KW - dikes KW - Alkali Buttes KW - transport KW - wall rocks KW - volcanism KW - magmas KW - eruptions KW - inclusions KW - basalts KW - Cibola County New Mexico KW - west-central New Mexico KW - Lucero volcanic field KW - xenoliths KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50074685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geology&rft.atitle=Entrainment+of+country+rock+during+basaltic+eruptions+of+the+Lucero+volcanic+field%2C+New+Mexico&rft.au=Valentine%2C+Greg+A%3BGroves%2C+Kristelle+R&rft.aulast=Valentine&rft.aufirst=Greg&rft.date=1996-01-01&rft.volume=104&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geology&rft.issn=00221376&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 54 N1 - PubXState - IL N1 - Document feature - illus. incl. strat. cols., 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JGEOAZ N1 - SubjectsTermNotLitGenreText - Alkali Buttes; basalts; Cibola County New Mexico; country rocks; dikes; eruptions; igneous rocks; inclusions; intrusions; Lucero volcanic field; magmas; New Mexico; transport; United States; Valencia County New Mexico; volcanic fields; volcanic rocks; volcanism; wall rocks; water; west-central New Mexico; xenoliths ER - TY - BOOK T1 - Phylogenetic perspective on microbial life in hydrothermal ecosystems, past and present AN - 17124524; 4431288 AB - Understanding hydrothermal ecosystems, both past and present, requires basic information on the types of organisms present. Traditional methods, which require cultivation of microorganisms, fail to detect many taxa. We have used phylogenetic analyses of small subunit rRNA sequences obtained from microorganisms of a hot spring in Yellowstone National Park to explore the archaeal (archaebacterial) diversity present. Analysis of these sequences reveals several novel groups of archaea, greatly expanding our conception of the diversity of high temperature microorganisms, and demonstrating that hydrothermal systems harbour a rich variety of life. Many of these groups diverged from the archaeal line of descent early during evolution, and an understanding of their common properties may assist in inference of the nature of the last common ancestor of all life. The data also show a specific relationship between low-temperature marine archaea and some hot spring archaea, consistent with a thermophilic origin of life. Future use of rRNA-sequence-based techniques in exploration of hydrothermal systems should greatly facilitate study of modern thermophiles and give us insight into the activities of extinct communities as well. JF - EVOLUTION OF HYDROTHERMAL ECOSYSTEMS ON EARTH (AND MARS?) AU - Barns, S M AU - Delwiche, C F AU - Palmer, J D AU - Dawson, S C AU - Hershberger, K L AU - Pace, N R A2 - Bock, GR A2 - Goode, JA (eds) Y1 - 1996 PY - 1996 DA - 1996 SP - 16 EP - 39 PB - John Wiley & Sons, [URL:http://www.wiley.co.ukhttp://www.wiley.com] SN - 047196509X KW - Bacteria KW - Microorganisms KW - Phylogeny KW - USA, Yellowstone National Park KW - aquatic bacteria KW - ecosystems KW - hot springs KW - phylogeny KW - thermophilic bacteria KW - Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts KW - Ecosystems KW - Biochemistry KW - Thermophilic bacteria KW - National parks KW - Hot springs KW - Archaebacteria KW - Freshwater KW - USA, Yellowstone Natl. Park KW - Hydrothermal studies KW - SW 0880:Chemical processes KW - Q1 08201:General KW - J 02710:Identification, taxonomy and typing KW - SW 0810:General KW - J 02905:Water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17124524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Bacteriology+Abstracts+%28Microbiology+B%29&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Barns%2C+S+M%3BDelwiche%2C+C+F%3BPalmer%2C+J+D%3BDawson%2C+S+C%3BHershberger%2C+K+L%3BPace%2C+N+R&rft.aulast=Barns&rft.aufirst=S&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=24&rft.isbn=047196509X&rft.btitle=Phylogenetic+perspective+on+microbial+life+in+hydrothermal+ecosystems%2C+past+and+present&rft.title=Phylogenetic+perspective+on+microbial+life+in+hydrothermal+ecosystems%2C+past+and+present&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Chiba Foundation Symposium 202 N1 - Last updated - 2014-05-06 ER - TY - JOUR T1 - Characterizing soils contaminated with heavy metals; a uranium contamination case study AN - 1566811275; 2014-078340 AB - To stem rising remediation costs for soils contaminated with hazardous metals, increased emphasis is being placed on the development of in-situ and ex-situ treatment technologies. Often, a lack of basic information on the chemical and physical characteristics of the soil and contaminants hampers treatability studies used to design these technologies. This article proposes and demonstrates a characterization program to meet these information needs, employing standard analytical techniques coupled with advanced spectroscopy and microscopy techniques. To support treatments involving physical separation strategies, the program uses standard analytical techniques to characterize the soil and the association of contaminants with different soil fractions (e.g., size and density fractions). Where chemical treatments are required, spectroscopy and microscopy methods are employed to yield quantitative information on the oxidation state and speciation of the contaminant. Examples demonstrate the use of measured soil and contaminant characteristics in the screening of alternative treatment technologies and in the selection of soils for use in treatability studies. Also demonstrated is the use of these characterization tools in the design and optimization of treatment strategies and in support of risk assessment determinations. Abstract Copyright (1996), Wiley Periodicals, Inc., A Wiley Company. JF - Remediation (New York, NY) AU - Tidwell, Vincent C AU - Morris, David E AU - Cunnane, James C AU - Lee, S Y Y1 - 1996 PY - 1996 DA - 1996 SP - 81 EP - 96 PB - John Wiley & Sons, New York, NY VL - 6 IS - 2 SN - 1051-5658, 1051-5658 KW - United States KW - silicates KW - hazardous waste KW - isotopes KW - characterization KW - techniques KW - chemical waste KW - soil washing KW - remediation KW - XANES spectra KW - radioactive isotopes KW - decontamination KW - spectra KW - heavy metals KW - Ohio KW - soils KW - monitoring KW - cation exchange capacity KW - pollutants KW - oxidation KW - Fernald Nuclear Facility KW - uranyl ion KW - pollution KW - X-ray spectra KW - TEM data KW - clay minerals KW - detection KW - sheet silicates KW - SEM data KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566811275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remediation+%28New+York%2C+NY%29&rft.atitle=Characterizing+soils+contaminated+with+heavy+metals%3B+a+uranium+contamination+case+study&rft.au=Tidwell%2C+Vincent+C%3BMorris%2C+David+E%3BCunnane%2C+James+C%3BLee%2C+S+Y&rft.aulast=Tidwell&rft.aufirst=Vincent&rft.date=1996-01-01&rft.volume=6&rft.issue=2&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Remediation+%28New+York%2C+NY%29&rft.issn=10515658&rft_id=info:doi/10.1002%2Frem.3440060208 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291520-6831 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 19 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-10-02 N1 - SubjectsTermNotLitGenreText - cation exchange capacity; characterization; chemical waste; clay minerals; decontamination; detection; Fernald Nuclear Facility; hazardous waste; heavy metals; isotopes; monitoring; Ohio; oxidation; pollutants; pollution; radioactive isotopes; remediation; SEM data; sheet silicates; silicates; soil washing; soils; spectra; techniques; TEM data; United States; uranyl ion; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1002/rem.3440060208 ER - TY - JOUR T1 - Passive soil vapor extraction; a cost effectiveness study AN - 1566811170; 2014-078345 AB - An analysis of the cost effectiveness of passive soil vapor extraction (PSVE) is presented. PSVE, or "barometric pumping," is an approach to the remediation of volatile organic compounds (VOCs) that seeks to harness and enhance the naturally occurring processes of wind and atmospheric pressure changes to facilitate the release of gas-phase contaminants from the subsurface. The technology background and current status are discussed, niches for the potential applicability of PSVE are identified, and a cost comparison with the conventional treatment method of active soil vapor extraction (ASVE) is examined. Abstract Copyright (1996), Wiley Periodicals, Inc., A Wiley Company. JF - Remediation (New York, NY) AU - Cummings, Mark AU - Booth, Steven R Y1 - 1996 PY - 1996 DA - 1996 SP - 69 EP - 79 PB - John Wiley & Sons, New York, NY VL - 6 IS - 3 SN - 1051-5658, 1051-5658 KW - chlorinated hydrocarbons KW - soil vapor extraction KW - pumping KW - soil treatment KW - pollution KW - optimization KW - tetrachloroethylene KW - cost KW - remediation KW - volatiles KW - organic compounds KW - transport KW - volatile organic compounds KW - steady-state processes KW - halogenated hydrocarbons KW - economics KW - trichloroethylene KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566811170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remediation+%28New+York%2C+NY%29&rft.atitle=Passive+soil+vapor+extraction%3B+a+cost+effectiveness+study&rft.au=Cummings%2C+Mark%3BBooth%2C+Steven+R&rft.aulast=Cummings&rft.aufirst=Mark&rft.date=1996-01-01&rft.volume=6&rft.issue=3&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Remediation+%28New+York%2C+NY%29&rft.issn=10515658&rft_id=info:doi/10.1002%2Frem.3440060306 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291520-6831 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 7 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-10-02 N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; cost; economics; halogenated hydrocarbons; optimization; organic compounds; permeability; pollution; pumping; remediation; soil treatment; soil vapor extraction; steady-state processes; tetrachloroethylene; transport; trichloroethylene; volatile organic compounds; volatiles DO - http://dx.doi.org/10.1002/rem.3440060306 ER - TY - JOUR T1 - Choosing the most effective hazardous waste landfill cover AN - 1566809501; 2014-078337 AB - Determining the appropriate criteria and designs for hazardous waste landfill covers has spawned much discussion within the environmental remediation arena. Very little reliable comparison of various technologies exists. Researchers at Los Alamos National Laboratory studied the relative hydrologic performance of four landfill cover designs-two capillary barrier designs, one modified EPA RCRA design, and one control cover. Monitoring the fate of natural precipitation for nearly four years showed that the covers with barrier layers more effectively reduced deep percolation than the control cover. Although none entirely eliminated deep percolation, the RCRA cover, incorporating a clay hydraulic barrier, most effectively controlled it. The two capillary barriers reduced deep percolation, but significant amounts were still produced. Over 90 percent of all percolation through the covers, and lateral flow within the covers, occurred during February through May each year, primarily as a result of snowmelt, early spring rains, and low evapotranspiration. The study also showed that gravel mulch surface treatments (70- to 80-percent ground cover) reduced runoff and erosion. Despite additional shrubs planted on one, the two plots receiving the gravel mulch treatments exhibited equally enhanced amounts of evapotranspiration. Abstract Copyright (1996), Wiley Periodicals, Inc., A Wiley Company. JF - Remediation (New York, NY) AU - Warren, Ronald W AU - Hakonson, Thomas E AU - Bostick, Kenneth V Y1 - 1996 PY - 1996 DA - 1996 SP - 23 EP - 41 PB - John Wiley & Sons, New York, NY VL - 6 IS - 2 SN - 1051-5658, 1051-5658 KW - United States KW - hazardous waste KW - Resource Conservation and Recovery Act KW - topsoil KW - technology KW - moisture KW - landfills KW - remediation KW - environmental management KW - controls KW - percolation KW - soil-water balance KW - breakthrough curves KW - disposal barriers KW - soils KW - hydrology KW - monitoring KW - soil treatment KW - porous materials KW - migration of elements KW - capillary water KW - water balance KW - evapotranspiration KW - cost KW - case studies KW - runoff KW - Hill Air Force Base KW - Utah KW - seasonal variations KW - waste disposal KW - leaching KW - pore water KW - meltwater KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566809501?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remediation+%28New+York%2C+NY%29&rft.atitle=Choosing+the+most+effective+hazardous+waste+landfill+cover&rft.au=Warren%2C+Ronald+W%3BHakonson%2C+Thomas+E%3BBostick%2C+Kenneth+V&rft.aulast=Warren&rft.aufirst=Ronald&rft.date=1996-01-01&rft.volume=6&rft.issue=2&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Remediation+%28New+York%2C+NY%29&rft.issn=10515658&rft_id=info:doi/10.1002%2Frem.3440060205 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291520-6831 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 46 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-10-02 N1 - SubjectsTermNotLitGenreText - breakthrough curves; capillary water; case studies; controls; cost; disposal barriers; environmental management; evapotranspiration; hazardous waste; Hill Air Force Base; hydrology; landfills; leaching; meltwater; migration of elements; moisture; monitoring; percolation; pore water; porous materials; remediation; Resource Conservation and Recovery Act; runoff; seasonal variations; soil treatment; soil-water balance; soils; technology; topsoil; United States; Utah; waste disposal; water balance DO - http://dx.doi.org/10.1002/rem.3440060205 ER -