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//