TY - JOUR T1 - Exposure temperature, but not donor age, is a confounding factor for in vitro translocation production by chronic irradiation. AN - 69884219; 10404996 AB - PURPOSETo assess the effects of incubation temperature during irradiation, and of donor age, on the in vitro induction of chromosomal translocations in human lymphocytes.MATERIAL AND METHODSLymphocytes from six human male donors were scored, using fluorescence in situ hybridization, for the presence of chromosomal translocations involving chromosomes 1 to 6 after in vitro, chronic exposure (delivered continuously over 48 h at 37 degrees C or at 20 degrees C) to tritium beta-rays or 60Co gamma-rays.RESULTSNo age-related difference in the alpha coefficients of the fitted induction curves was observed for gamma-ray-exposed lymphocytes obtained from four donors whose ages ranged from 24 to 79 years, or for tritium beta-ray-exposed lymphocytes from two donors aged 36 and 62 years. Duplicate samples from one donor, irradiated concurrently at 20 degrees C or 37 degrees C, gave significantly different alpha coefficients: 0.128+/-0.008 and 0.053+/-0.004, respectively (p<0.0001). The S-ratio (the ratio of induced complete to incomplete translocations) was found to be independent of radiation dose, donor age and exposure temperature.CONCLUSIONSFor biodosimetry in chronic irradiation situations, the use of alpha coefficients derived from the dose-response curves of cells chronically irradiated in vitro at body temperature is recommended. With respect to induction rates, donor age does not appear to be a confounding factor. The S-ratio is independent of radiation doses, exposure temperatures, or donor ages. JF - International journal of radiation biology AU - Lucas, J N AU - Deng, W AU - Hsieh, W A AU - Galvan, N AU - Gale, K L AU - Morrison, D P AD - University of California, Lawrence Livermore National Laboratory, Livermore 94550, USA. lucas1@llnl.gov Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 673 EP - 680 VL - 75 IS - 6 SN - 0955-3002, 0955-3002 KW - Index Medicus KW - Space life sciences KW - Relative Biological Effectiveness KW - Age Factors KW - DNA Repair KW - DNA Damage KW - Humans KW - Adult KW - Temperature KW - Aged KW - Middle Aged KW - Dose-Response Relationship, Radiation KW - Male KW - Translocation, Genetic -- radiation effects KW - Lymphocytes -- radiation effects KW - Lymphocytes -- ultrastructure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69884219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+journal+of+radiation+biology&rft.atitle=Exposure+temperature%2C+but+not+donor+age%2C+is+a+confounding+factor+for+in+vitro+translocation+production+by+chronic+irradiation.&rft.au=Lucas%2C+J+N%3BDeng%2C+W%3BHsieh%2C+W+A%3BGalvan%2C+N%3BGale%2C+K+L%3BMorrison%2C+D+P&rft.aulast=Lucas&rft.aufirst=J&rft.date=1999-06-01&rft.volume=75&rft.issue=6&rft.spage=673&rft.isbn=&rft.btitle=&rft.title=International+journal+of+radiation+biology&rft.issn=09553002&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-07-22 N1 - Date created - 1999-07-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - DNA and protein adduct formation in the colon and blood of humans after exposure to a dietary-relevant dose of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine. AN - 69852149; 10385140 AB - Epidemiology studies have indicated that certain dietary components, including well-cooked meat, are risk determinants for colon cancer. Cooked meat can contain significant quantities of heterocyclic aromatic amines (HCAs), which have been established as carcinogens in laboratory animals. 2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) is usually the most mass-abundant HCA, with concentrations up to 480 ppb. We used accelerator mass spectrometry to establish whether DNA and protein adducts can be detected in humans exposed to a quantity of PhIP comparable with levels of exposure that occur in the diet. Five human volunteers were administered a dietary-relevant dose of [14C]PhIP (70-84 microg) 48-72 h before surgery for removal of colon tumors. Blood samples were collected at various time points, and albumin, hemoglobin, and WBC DNA were extracted for analysis by accelerator mass spectrometry. Tissue samples were collected during surgery and used to assess either tissue available doses of [14C]PhIP or adduct levels. The results of this study show: (a) PhIP is activated to a form that will bind to albumin, hemoglobin, and WBC DNA in peripheral blood. WBC DNA adducts were unstable and declined substantially over 24 h; (b) PhIP is bioavailable to the colon, with levels in normal tissue in the range 42-122 pg PhIP/g tissue; and (c) PhIP binds to both protein and DNA in the colon. DNA adduct levels in the normal tissue were 35-135 adducts/10(12) nucleotides, which was significantly lower than tumor tissue. The results of this study demonstrate that PhIP is bioavailable to the human colon following defined dietary-relevant doses and forms DNA and protein adducts. JF - Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology AU - Dingley, K H AU - Curtis, K D AU - Nowell, S AU - Felton, J S AU - Lang, N P AU - Turteltaub, K W AD - Biology and Biotechnology Research Program and Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, California 94551-9900, USA. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 507 EP - 512 VL - 8 IS - 6 SN - 1055-9965, 1055-9965 KW - Carcinogens KW - 0 KW - DNA Adducts KW - Hemoglobins KW - Imidazoles KW - Serum Albumin KW - 2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine KW - 909C6UN66T KW - Index Medicus KW - Mass Spectrometry KW - Leukocytes -- chemistry KW - Serum Albumin -- analysis KW - Humans KW - Aged KW - Pilot Projects KW - Biological Availability KW - Diet -- adverse effects KW - Hemoglobins -- analysis KW - Aged, 80 and over KW - Meat -- adverse effects KW - Adult KW - Cooking KW - Male KW - DNA Adducts -- blood KW - Carcinogens -- metabolism KW - DNA Adducts -- analysis KW - Colonic Neoplasms -- etiology KW - Imidazoles -- metabolism KW - Carcinogens -- chemistry KW - Colonic Neoplasms -- surgery KW - Colonic Neoplasms -- pathology KW - Colonic Neoplasms -- blood KW - Imidazoles -- adverse effects KW - Imidazoles -- chemistry KW - Carcinogens -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69852149?accountid=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+epidemiology%2C+biomarkers+%26+prevention+%3A+a+publication+of+the+American+Association+for+Cancer+Research%2C+cosponsored+by+the+American+Society+of+Preventive+Oncology&rft.atitle=DNA+and+protein+adduct+formation+in+the+colon+and+blood+of+humans+after+exposure+to+a+dietary-relevant+dose+of+2-amino-1-methyl-6-phenylimidazo%5B4%2C5-b%5Dpyridine.&rft.au=Dingley%2C+K+H%3BCurtis%2C+K+D%3BNowell%2C+S%3BFelton%2C+J+S%3BLang%2C+N+P%3BTurteltaub%2C+K+W&rft.aulast=Dingley&rft.aufirst=K&rft.date=1999-06-01&rft.volume=8&rft.issue=6&rft.spage=507&rft.isbn=&rft.btitle=&rft.title=Cancer+epidemiology%2C+biomarkers+%26+prevention+%3A+a+publication+of+the+American+Association+for+Cancer+Research%2C+cosponsored+by+the+American+Society+of+Preventive+Oncology&rft.issn=10559965&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-07-29 N1 - Date created - 1999-07-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Effect of four computer keyboards in computer users with upper extremity musculoskeletal disorders. AN - 69764584; 10332518 AB - Eighty computer users with musculoskeletal disorders participated in a 6-month, randomized, placebo-controlled trial evaluating the effects of four computer keyboards on clinical findings, pain severity, functional hand status, and comfort. The alternative geometry keyboards tested were: the Apple Adjustable Keyboard [kb1], Comfort Keyboard System [kb2], Microsoft Natural Keyboard [kb3], and placebo. Compared to placebo, kb3 and to a lesser extent kb1 groups demonstrated an improving trend in pain severity and hand function following 6 months of keyboard use. However, there was no corresponding consistent improvement in clinical findings in the alternative geometry keyboard groups compared to the placebo group. Overall, there was a significant correlation between improvement of pain severity and greater satisfaction with the keyboards. These results provide evidence that keyboard users may experience a reduction in hand pain after several months of use of some alternative geometry keyboards. JF - American journal of industrial medicine AU - Tittiranonda, P AU - Rempel, D AU - Armstrong, T AU - Burastero, S AD - Interdisciplinary Ergonomics Research Program, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 647 EP - 661 VL - 35 IS - 6 SN - 0271-3586, 0271-3586 KW - Index Medicus KW - Equipment Design KW - Analysis of Variance KW - Humans KW - Linear Models KW - Adult KW - Disability Evaluation KW - Pain Measurement KW - Middle Aged KW - Statistics, Nonparametric KW - Male KW - Female KW - Human Engineering KW - Computer Terminals KW - Tendinopathy -- rehabilitation KW - Occupational Diseases -- rehabilitation KW - Carpal Tunnel Syndrome -- rehabilitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69764584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+industrial+medicine&rft.atitle=Effect+of+four+computer+keyboards+in+computer+users+with+upper+extremity+musculoskeletal+disorders.&rft.au=Tittiranonda%2C+P%3BRempel%2C+D%3BArmstrong%2C+T%3BBurastero%2C+S&rft.aulast=Tittiranonda&rft.aufirst=P&rft.date=1999-06-01&rft.volume=35&rft.issue=6&rft.spage=647&rft.isbn=&rft.btitle=&rft.title=American+journal+of+industrial+medicine&rft.issn=02713586&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-07-13 N1 - Date created - 1999-07-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Recognizing explosion sites with a self-organizing network for unsupervised learning AN - 52465294; 1999-046943 AB - A self-organizing neural network model has been developed for identifying mining explosion locations in different environments in Finland and adjacent areas. The main advantage of the method is its ability to automatically find a suitable network structure and naturally correctly identify explosions as such. The explosion site recognition was done using extracted waveform attributes of various kind event records from the small-aperture array FINESS in Finland. The recognition was done by using P-S phase arrival differences and rough azimuth estimates to provide a first robust epicentre location. This, in turn, leads to correct mining district identification where more detailed tuning was performed using different phase amplitude and signal-to-noise attributes. The explosions studied here originated in mines and quarries located in Finland, coast of Estonia and in the St. Petersburg area, Russia. Although the Helsinki bulletins in 1995 and 1996 listed 1649 events in these areas, analysis was restricted to the 380 (ML> or =2) events which, besides, were found in the reviewed event bulletins (REB) of the CTBTO/UN prototype international data centre (pIDC) in Arlington, VA, USA. These 380 events with different attributes were selected for the learning stage. Because no "ground-truth" information was available the corresponding mining, "code" coordinates used earlier to compile Helsinki bulletins were utilized instead. The novel self-organizing method was tested on 18 new event recordings in the mentioned area in January-February 1997, out of which 15 were connected to correct mines. The misconnected three events were those which did not have all matching attributes in the self-organizing maps (SOMs) network. JF - Physics of the Earth and Planetary Interiors AU - Tarvainen, Matti A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 143 EP - 154 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - P-waves KW - FINESS seismic network KW - Estonia KW - self-organization KW - data processing KW - Europe KW - elastic waves KW - waveforms KW - Russian Federation KW - Commonwealth of Independent States KW - Saint Petersburg Russian Federation KW - Leningrad Oblast Russian Federation KW - neural networks KW - Baltic region KW - algorithms KW - mines KW - body waves KW - monitoring KW - Western Europe KW - Finland KW - explosions KW - quarries KW - models KW - computer programs KW - SOM KW - artificial intelligence KW - Scandinavia KW - identification KW - epicenters KW - seismic waves KW - seismic networks KW - earthquakes KW - S-waves KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52465294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Recognizing+explosion+sites+with+a+self-organizing+network+for+unsupervised+learning&rft.au=Tarvainen%2C+Matti&rft.aulast=Tarvainen&rft.aufirst=Matti&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 25 N1 - Document feature - illus. incl. 5 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - algorithms; artificial intelligence; Baltic region; body waves; Commonwealth of Independent States; Comprehensive Test Ban Treaty; computer programs; data processing; earthquakes; elastic waves; epicenters; Estonia; Europe; explosions; FINESS seismic network; Finland; identification; Leningrad Oblast Russian Federation; mines; models; monitoring; neural networks; P-waves; quarries; Russian Federation; S-waves; Saint Petersburg Russian Federation; Scandinavia; seismic networks; seismic waves; self-organization; SOM; waveforms; Western Europe ER - TY - JOUR T1 - First application of ASDP software; a case study at Mt. Etna Volcano and in the Acri region (southern Italy) AN - 52465252; 1999-046938 AB - The PC-based automatic seismic data processing (ASDP) software module uses a multi-algorithm approach and a new procedure (MSA) for signal detection, phase grouping and event identification and location. It is designed for an efficient and accurate processing of local earthquakes records provided by single-site and array stations. Results from ASDP processing of two different data sets are analysed to evaluate its performance. By comparing of ASDP pickings with those revised manually the detection and subsequently the location capabilities of this software are assessed. The first data set is composed of 330 local microearthquakes (1.7< or =M< or =3.8) recorded in the Mt. Etna volcano area by a telemetered analog seismic network. Digital data conversion of data is performed at the network centre operated by the Istituto Internazionale di Vulcanologia of C.N.R. The second data set comprises 40 ultra-microearthquakes (0.5< or =M< or =2.0) recorded by a temporary array of four digital three-component stations, deployed in the Acri region (southern Calabria). For the Etnean earthquakes, a comparison of the automatic results with the manual picks indicates that the ASDP module can accurately pick 80% of the P-waves (differences are within 0.15 s) and 65% of the S-waves (differences are within 0.3 s). A peculiarity for these events is that the majority of the 3 three-component station records do not exhibit distinct S-waves. This statistics includes records with a strong noise (ground tremors and/or system electronic disturbances), but does not include false alarms due to non-seismic signals. Conversely, if we consider high-dynamic recordings of seismic digital data in a low-noise environment (Acri temporary array) the ASDP module can accurately pick 93% of the P-waves (differences with manual estimations are less than 0.1 s) and 87% of the S-waves (differences with manual estimations are less than 0.2 s). For this type of data with a favourable signal-to-noise ratio the automatic back-azimuths estimates are also extremely accurate in the 87% of the cases (differences estimations with those revised by an analyst and deriving from hypocenter solutions are generally within 10 degrees ). In general, our results indicate that both automatic ASDP and manual hypocenter locations are comparable within the estimated errors bounds. Furthermore, the comparison of ASDP automatic locations with those performed by XRTP-IASPEI software, routinely used for automatic locations at the Mt. Etna seismic network, indicates a better performance of the ASDP module. JF - Physics of the Earth and Planetary Interiors AU - Patane, Domenico AU - Ferrari, Ferruccio AU - Ferrucci, Fabrizio A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 75 EP - 88 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - P-waves KW - body waves KW - Mount Etna KW - data processing KW - Europe KW - elastic waves KW - Italy KW - Southern Europe KW - computer programs KW - case studies KW - Sicily Italy KW - detection KW - Calabria Italy KW - ASDP KW - identification KW - signal-to-noise ratio KW - seismic waves KW - algorithms KW - seismic networks KW - earthquakes KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52465252?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=First+application+of+ASDP+software%3B+a+case+study+at+Mt.+Etna+Volcano+and+in+the+Acri+region+%28southern+Italy%29&rft.au=Patane%2C+Domenico%3BFerrari%2C+Ferruccio%3BFerrucci%2C+Fabrizio&rft.aulast=Patane&rft.aufirst=Domenico&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 28 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - algorithms; ASDP; body waves; Calabria Italy; case studies; computer programs; data processing; detection; earthquakes; elastic waves; Europe; identification; Italy; Mount Etna; P-waves; S-waves; seismic networks; seismic waves; Sicily Italy; signal-to-noise ratio; Southern Europe ER - TY - JOUR T1 - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI AN - 52465227; 1999-046932 JF - Physics of the Earth and Planetary Interiors A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 369 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - monitoring KW - symposia KW - seismic networks KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52465227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Physics+of+the+Earth+and+Planetary+Interiors&rft.atitle=Seismological+data+and+practice%3B+beyond+year+2000%3B+the+29th+General+Assembly+of+IASPEI&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - Document feature - illus. N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - earthquakes; monitoring; seismic networks; symposia ER - TY - JOUR T1 - Explosion site recognition; neural net discriminator using single three-component stations AN - 52464624; 1999-046942 AB - In monitoring of local seismicity, the occurrence of many chemical explosions poses sever practical problems of two kinds: (i) such recordings add significantly to the analyst workload and (ii) in extreme cases, pollute the seismicity data base to the extent of rendering it useless for serious scientific studies. In some countries, the local seismicity is equivalent to felt earthquakes but the problem remains since both earthquakes and explosions are and will be recorded by local stations. These events will therefore enter the network data center processing system, and thus, be subjected to further analysis. Source classification schemes are not always well suited for this kind of needed analysis at local distance ranges (not easily transportable). Besides, epicenter determinations may be less accurate in cases of few station reportings. The common denominator for failures is the modest usages of the information potential contained in seismic recordings being represented by a few time/amplitude parameters for the Pn- and Lg-phases. On the other hand, seismic waveform similarities for closely spaced earthquakes and explosions in particular are well established observationally. In this study period, we explore the possibility of using single station three-component (3C) covariance matrix traces from a priori known explosion sites (learning) for automatically recognizing subsequent explosions from the same site. To ensure adequate sampling, we used the nine different complex covariance time domain elements in combination with a suit of 12 bandpass filters equivalent to 108 observation pieces for a single event recording. We used a neural net scheme for teaching the computer to recognize new explosion recordings from a specific site through scanning of hundreds of detector segmented waveform files. No epicenter information was used in this analysis. The output was a single number between Zero and Four (log-scale) with an acceptance threshold (repeated explosion) of 1.2-analyst friendly usage. Actual tests were performed on two explosion sites of western Norway for which ground truth information was available. The 100% correct decisions were obtained between "site explosions" and hundreds of non-site events. A brute force test on the relative merits of the 12 frequency bands used gave that the 2-4 Hz and 8-12 Hz spectral parts were most informative. Experiment tied to two quarry sites for which ground truth information was lacking gave less sharp separation of site and non-site events. Since covariance elements comprise P- and S-waveform jointly, good spatial sampling is ensured even for single site 3C stations; beyond 10 km from the epicenter the scores were in the non-site category. The above approach to event discrimination is very flexible as we may combine several 3C stations with even z-component stations and besides, no analyst action in any way will be needed. JF - Physics of the Earth and Planetary Interiors AU - Fedorenko, Yu V AU - Husebye, Eystein S AU - Ruud, Bent O A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 131 EP - 142 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - monitoring KW - discriminant analysis KW - Western Europe KW - explosions KW - chemical explosions KW - statistical analysis KW - passband filters KW - data processing KW - Europe KW - waveforms KW - artificial intelligence KW - Scandinavia KW - detection KW - data bases KW - epicenters KW - neural networks KW - Norway KW - earthquakes KW - covariance analysis KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52464624?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Explosion+site+recognition%3B+neural+net+discriminator+using+single+three-component+stations&rft.au=Fedorenko%2C+Yu+V%3BHusebye%2C+Eystein+S%3BRuud%2C+Bent+O&rft.aulast=Fedorenko&rft.aufirst=Yu&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 31 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - artificial intelligence; chemical explosions; covariance analysis; data bases; data processing; detection; discriminant analysis; earthquakes; epicenters; Europe; explosions; monitoring; neural networks; Norway; passband filters; Scandinavia; statistical analysis; waveforms; Western Europe ER - TY - JOUR T1 - ASDP; a PC-based program using a multi-algorithm approach for automatic detection and location of local earthquakes AN - 52464592; 1999-046937 AB - A few automated data acquisition and processing systems operate on mainframes, some are run on UNIX-based workstations and others on personal computer, equipped with either DOS or UNIX-derived operating systems. Several large and complex software packages for automatic and interactive analysis of seismic data have been developed in recent years mainly for UNIX-based systems, and some of these programs use a variety of artificial intelligence techniques. Here, the first operational version of a new software package, named PC-Seism, for analyzing seismic data from a local network is presented. This package, composed of three separate modules, provides an example of a new generation of visual object-oriented programs for interactive and automatic seismic data processing run on a personal computer. In particular, we discuss the automatic procedures implemented in the ASDP (Automatic Seismic Data Processing) module. A multi-algorithm approach to the on-line detection and location of local earthquakes is adopted in ASDP, and its operative mode is similar to that used in more complex systems, where the algorithms run on different processors and parallel computations are generally performed. Since highly complex computation routines may still be prohibitive for current PC when the number of analyzing traces becomes large, we have opted for simplicity and have planned three main routines (working in cascade mode) and a multi-station analysis (MSA) procedure in ASDP, to recognize phase picking, declare and locate earthquakes. Basically, signal detection on a single-component trace is obtained by a short-term average to long-term average ratio (STA/LTA) taken along a characteristic function (CF) envelope generated from the seismogram. To confirm and identify earthquake phase arrivals and to discard noise disturbances, two other sections of analysis are applied on short signal windows after the declared triggers. A spectral analysis is applied as detector of earthquake phase arrivals. Furthermore, for three-component data, the application of a polarization filter is used to identify P- and S-phases. Therefore in order to optimize the efficiency of a seismic monitoring system, the software is provided with full detection capability and makes use of a high degree of automation, aimed at minimizing the analyst's workload. PC-Seism and, in particular, the ASDP module are under constant review. In fact, the modular structure of the program will allow us to develop it with new and improved capabilities. Future developments improvements in ASDP will concern the application of other detection algorithms and routines to recognize secondary phases in regional and teleseismic earthquakes. JF - Physics of the Earth and Planetary Interiors AU - Patane, Domenico AU - Ferrari, Ferruccio A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 57 EP - 74 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - P-waves KW - body waves KW - data acquisition KW - data processing KW - elastic waves KW - PC-SEISM KW - noise KW - computer programs KW - visualization KW - artificial intelligence KW - detection KW - ASDP KW - seismic waves KW - algorithms KW - earthquakes KW - S-waves KW - filters KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52464592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=ASDP%3B+a+PC-based+program+using+a+multi-algorithm+approach+for+automatic+detection+and+location+of+local+earthquakes&rft.au=Patane%2C+Domenico%3BFerrari%2C+Ferruccio&rft.aulast=Patane&rft.aufirst=Domenico&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 43 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - algorithms; artificial intelligence; ASDP; body waves; computer programs; data acquisition; data processing; detection; earthquakes; elastic waves; filters; noise; P-waves; PC-SEISM; S-waves; seismic waves; visualization ER - TY - JOUR T1 - Source classification in the Northern Caucasus AN - 52463946; 1999-046946 AB - Regional records of-well documented mine blasts in the area of Caucasian Mineral Water (Northern Caucasus, Russia) are analyzed to test the efficiency of the spectrogram method and Pg/Lg spectral ratios as discriminants between small earthquakes (magnitude <4.5) and comparable magnitude chemical explosions. Being a very useful tool for frequency content studies, the spectrogram method sometimes failed to recognize ripple-fired or spatially separated mine blasts. Due to short delays commonly used (20-40 ms) and complicated crust structure in the region, prominent spectral scalloping of the spectrogram is not observed regularly and is not coherent at different stations. Mean vertical-component Pg/Lg spectral ratio in the band 8 to 20 Hz serves quite well as a discriminant but its value, in general, significantly depends on the particular mine and epicenter location. We have found that no single method can yet assure reliable discrimination between seismic signals from earthquakes and explosions in this region. A self-training algorithm, based on the comparison of "demeaned" envelopes, which grouped events by means of hierarchical cluster analysis, P/S discriminant, was implemented to classify a data set of 18 months of routine observations. A total of 366 out of 374 records were successfully classified and separated into 19 groups of events. This algorithm is especially useful when data analyzed are from sparse networks or from a region of complicated crust structure where averaging over the network can lead to systematic error. JF - Physics of the Earth and Planetary Interiors AU - Chernobay, I P AU - Gabsatarova, I P A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 183 EP - 201 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - seismograms KW - mines KW - discriminant analysis KW - explosions KW - chemical explosions KW - statistical analysis KW - magnitude KW - data processing KW - spectral analysis KW - Europe KW - waveforms KW - Russian Federation KW - cluster analysis KW - computer programs KW - artificial intelligence KW - Commonwealth of Independent States KW - classification KW - epicenters KW - spectra KW - algorithms KW - Caucasus KW - Northern Caucasus KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Source+classification+in+the+Northern+Caucasus&rft.au=Chernobay%2C+I+P%3BGabsatarova%2C+I+P&rft.aulast=Chernobay&rft.aufirst=I&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 25 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - algorithms; artificial intelligence; Caucasus; chemical explosions; classification; cluster analysis; Commonwealth of Independent States; computer programs; data processing; discriminant analysis; earthquakes; epicenters; Europe; explosions; magnitude; mines; Northern Caucasus; Russian Federation; seismograms; spectra; spectral analysis; statistical analysis; waveforms ER - TY - JOUR T1 - Application of quadratic neural networks to seismic signal classification AN - 52463909; 1999-046940 AB - This paper solves the seismic signal classification problem using the quadratic neural networks with closed-boundary discriminating surfaces. In this study, we have demonstrated the quadratic neural network (QNN) potential capabilities in application to the seismic signal classification problems and show that the efficiency achieved here, is much better to what obtained with conventional multilayer neural networks. Firstly, we have performed some pre-processing on the long period recordings to cancel out the instrumental and attenuation side effects. Secondly, we have extracted the ARMA filter coefficients of the windowed P-wave phase through some matrix manipulations using the conventional Prony ARMA modeling scheme. The derived coefficients are then applied to QNN for training and classification. The results have shown that a quadratic neuron is likely to have a performance similar to that of a multilayer perceptron when the target is to discriminate distribution of points in clusters within the input space. JF - Physics of the Earth and Planetary Interiors AU - Allameh Zadeh, M AU - Nassery, P A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 103 EP - 110 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - P-waves KW - body waves KW - experimental studies KW - explosions KW - data processing KW - ARMA model KW - elastic waves KW - signals KW - models KW - computer programs KW - artificial intelligence KW - classification KW - Eurasia KW - seismic waves KW - neural networks KW - seismic networks KW - nuclear explosions KW - earthquakes KW - filters KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Application+of+quadratic+neural+networks+to+seismic+signal+classification&rft.au=Allameh+Zadeh%2C+M%3BNassery%2C+P&rft.aulast=Allameh+Zadeh&rft.aufirst=M&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 10 N1 - Document feature - illus. incl. 6 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - ARMA model; artificial intelligence; body waves; classification; computer programs; data processing; earthquakes; elastic waves; Eurasia; experimental studies; explosions; filters; models; neural networks; nuclear explosions; P-waves; seismic networks; seismic waves; signals ER - TY - JOUR T1 - Statistical classification approach to discrimination between weak earthquakes and quarry blasts recorded by the Israel seismic network AN - 52463534; 1999-046945 AB - A semi-automatic procedure has been developed to achieve statistically optimum discrimination between earthquakes and explosions at local or regional distances based on a learning set specific to a given region. The method is used for step-by-step testing of candidate discrimination features to find the optimum (combination) subset of features, with the decision taken on a rigorous statistical basis. Linear (LDF) and Quadratic (QDF) Discriminant Functions based on Gaussian distributions of the discrimination features are implemented and statistically grounded; the features may be transformed by the Box-Cox transformation z = (1/alpha )(y (super alpha ) -1) to make them more Gaussian. Tests of the method were successfully conducted on seismograms from the Israel Seismic Network using features consisting of spectral ratios between and within phases. Results showed that the QDF was more effective than the LDF and required five features out of 18 candidates for the optimum set. It was found that discrimination improved with increasing distance within the local range, and that eliminating transformation of the features and failing to correct for noise led to degradation of discrimination. JF - Physics of the Earth and Planetary Interiors AU - Kushnir, A F AU - Troitsky, E V AU - Haikin, L M AU - Dainty, A A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 161 EP - 182 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - seismograms KW - experimental studies KW - quadratic discriminant analysis KW - discriminant analysis KW - explosions KW - quarries KW - statistical analysis KW - data processing KW - Israel KW - distribution KW - noise KW - classification KW - Israel seismic network KW - Gaussian distribution KW - seismic networks KW - linear discriminant analysis KW - Asia KW - earthquakes KW - Middle East KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Statistical+classification+approach+to+discrimination+between+weak+earthquakes+and+quarry+blasts+recorded+by+the+Israel+seismic+network&rft.au=Kushnir%2C+A+F%3BTroitsky%2C+E+V%3BHaikin%2C+L+M%3BDainty%2C+A&rft.aulast=Kushnir&rft.aufirst=A&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 28 N1 - Document feature - illus. incl. 6 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - Asia; classification; data processing; discriminant analysis; distribution; earthquakes; experimental studies; explosions; Gaussian distribution; Israel; Israel seismic network; linear discriminant analysis; Middle East; noise; quadratic discriminant analysis; quarries; seismic networks; seismograms; statistical analysis ER - TY - JOUR T1 - The (super 36) Cl- (super 36) Ar- (super 40) K- (super 41) K records and cosmic ray production rates in iron meteorites AN - 52463364; 1999-046815 AB - This is the first contribution towards a reevaluation of exposure histories of iron meteorites and of the constancy of the cosmic ray flux over the last billion years, as recorded in these fossil detectors. We have performed new (super 36) Cl, (super 26) Al, (super 10) Be, and noble gas measurements, including determination of the shielding parameter, S = (super 4) He/ (super 21) Ne, in samples with published K data. The K isotopic data, coupled to (super 36) Ar and (super 36) Cl concentrations permit selection of meteorites which have only experienced simple (constant geometry) irradiation histories. These objects can be used for the calibration of shielding-dependent production rates within these metallic detectors. In order to carry out production rate calibrations based on (super 40) K- (super 41) K data, we assume constancy of the cosmic flux during the interval 150 to 700 My ago. We note that meteorites with very old potassium ages cannot be included in this calibration, as these meteorites require distinct parameter sets. A calibration data set representing a total of 13 meteorites was used to compute long-term (0.5 Gy) average production rates. These average production rates of (super 36) Cl from this particular calibration set are significantly (28%) lower than those determined for the recent (< or =10 My) cosmic ray flux. We also document here the quality of the resulting potassium production rate parameter M (sub 0) (S) with a calculated isochron for irons of group IVA. JF - Earth and Planetary Science Letters AU - Lavielle, B AU - Marti, K AU - Jeannot, J P AU - Nishiizumi, K AU - Caffee, M Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 93 EP - 104 PB - Elsevier, Amsterdam VL - 170 IS - 1-2 SN - 0012-821X, 0012-821X KW - isotopes KW - halogens KW - cosmogenic elements KW - K-41 KW - calibration KW - K-40 KW - exposure age KW - stable isotopes KW - meteorites KW - radioactive isotopes KW - iron meteorites KW - noble gases KW - cosmic rays KW - geochemistry KW - chlorine KW - experimental studies KW - isotope ratios KW - Cl-36 KW - alkali metals KW - cosmochemistry KW - isochrons KW - argon KW - Ar-36 KW - metals KW - potassium KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=The+%28super+36%29+Cl-+%28super+36%29+Ar-+%28super+40%29+K-+%28super+41%29+K+records+and+cosmic+ray+production+rates+in+iron+meteorites&rft.au=Lavielle%2C+B%3BMarti%2C+K%3BJeannot%2C+J+P%3BNishiizumi%2C+K%3BCaffee%2C+M&rft.aulast=Lavielle&rft.aufirst=B&rft.date=1999-06-01&rft.volume=170&rft.issue=1-2&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2FS0012-821X%2899%2900099-0 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 - 38 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes an appendix N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - alkali metals; Ar-36; argon; calibration; chlorine; Cl-36; cosmic rays; cosmochemistry; cosmogenic elements; experimental studies; exposure age; geochemistry; halogens; iron meteorites; isochrons; isotope ratios; isotopes; K-40; K-41; metals; meteorites; noble gases; potassium; radioactive isotopes; stable isotopes DO - http://dx.doi.org/10.1016/S0012-821X(99)00099-0 ER - TY - JOUR T1 - Optimal filter parameters for low SNR seismograms as a function of station and event location AN - 52463247; 1999-046948 AB - Global seismic monitoring requires deployment of seismic sensors worldwide, in many areas that have not been studied or have few useable recordings. Using events with lower signal-to-noise ratios (SNR) would increase the amount of data from these regions. Lower SNR events can add significant numbers to data sets, but recordings of these events must be carefully filtered. For a given region, conventional methods of filter selection can be quite subjective and may require intensive analysis of many events. To reduce this laborious process, we have developed an automated method to provide optimal filters for low SNR regional or teleseismic events. As seismic signals are often localized in frequency and time with distinct time-frequency characteristics, our method is based on the decomposition of a time series into a set of subsignals, each representing a band with f/Delta f constant (constant Q). The SNR is calculated on the pre-event noise and signal window. The band pass signals with high SNR are used to indicate the cutoff filter limits for the optimized filter. Results indicate a significant improvement in SNR, particularly for low SNR events. The method provides an optimum filter which can be immediately applied to unknown regions. The filtered signals are used to map the seismic frequency response of a region and may provide improvements in travel-time picking, azimuth estimation, regional characterization, and event detection. For example, when an event is detected and a preliminary location is determined, the computer could automatically select optimal filter bands for data from non-reporting stations. Results are shown for a set of low SNR events as well as 379 regional and teleseismic events recorded at stations ABKT, KIV, and ANTO in the Middle East. JF - Physics of the Earth and Planetary Interiors AU - Leach, Richard R, Jr AU - Dowla, Farid U AU - Schultz, Craig A A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 213 EP - 226 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - seismograms KW - monitoring KW - explosions KW - optimal filters KW - global KW - passband filters KW - data processing KW - elastic waves KW - frequency KW - teleseismic signals KW - detection KW - wavelets KW - traveltime KW - signal-to-noise ratio KW - nuclear explosions KW - Asia KW - earthquakes KW - Middle East KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Optimal+filter+parameters+for+low+SNR+seismograms+as+a+function+of+station+and+event+location&rft.au=Leach%2C+Richard+R%2C+Jr%3BDowla%2C+Farid+U%3BSchultz%2C+Craig+A&rft.aulast=Leach&rft.aufirst=Richard&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 17 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - Asia; Comprehensive Test Ban Treaty; data processing; detection; earthquakes; elastic waves; explosions; frequency; global; Middle East; monitoring; nuclear explosions; optimal filters; passband filters; seismograms; signal-to-noise ratio; teleseismic signals; traveltime; wavelets ER - TY - JOUR T1 - Spectral discrimination analysis of Eurasian nuclear tests and earthquakes recorded by the Israel seismic network and the NORESS Array AN - 52463241; 1999-046941 AB - The energy spectral ratio and the innovative spectral semblance discriminants, successfully performed previously on a local Israeli events, were verified on teleseismic short-period recordings. The events tested include 29 nuclear explosions and 41 earthquakes (m (sub b) = 5.2-6.5), mainly from China and Kazakhstan, recorded by the Israel Seismic Network (ISN) and the NORESS array. A 15-s window comprising P- and P-coda waves was selected for the analysis. The "semblance" statistic commonly used in seismic prospecting for phase correlation in the time domain was modified and utilized as a measure of coherency of the smoothed spectra across the network/array. The semblance and the average spectral ratio of low-to-high frequency energy were evaluated, using a subset of 7-10 stations for a given event. Semblance and spectral ratio values, calculated from ISN seismograms, were found to be higher for earthquakes, where the analyzed waves are richer in low-frequency energy and have more coherent spectral shapes than explosions. These observations are contrary to those observed for local events. The best performance is provided in the frequency bands (0.6-1 Hz)/(1-3 Hz) (for the ratio) and (0.6-2 Hz) (for the semblance). Joint application of the two discriminants showed almost full separation (95%) between the two populations. Some explosions exhibited pronounced minima (nulls) near 1 Hz which could be interpreted in terms of interference of P- and pP-waves from a source at the depth of several hundreds of meters. Nevertheless, this feature could not be utilized as a discriminant: many explosions revealed strong variability of this minimum across the ISN network and some earthquakes also distinctly exhibited this feature. The ISN and NORESS discrimination performances were compared. The latter records showed the same (as the ISN) relation between spectral ratio values for earthquakes and explosions, whereas the character of semblance was reversed. The ratios in the frequency bands (0.6-0.8 Hz)/(0.6-10 Hz) yield full separation of the two populations. In general, the spectral ratio performance appears to be better for NORESS recordings, whereas the spectral semblance is better for the ISN data. JF - Physics of the Earth and Planetary Interiors AU - Gitterman, Y AU - Pinsky, V AU - Shapira, A A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 111 EP - 129 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - P-waves KW - body waves KW - discriminant analysis KW - guided waves KW - explosions KW - statistical analysis KW - data processing KW - coda waves KW - elastic waves KW - frequency KW - teleseismic signals KW - surface waves KW - Israel seismic network KW - Eurasia KW - data bases KW - spectra KW - seismic waves KW - seismic networks KW - nuclear explosions KW - NORESS KW - earthquakes KW - arrays KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Spectral+discrimination+analysis+of+Eurasian+nuclear+tests+and+earthquakes+recorded+by+the+Israel+seismic+network+and+the+NORESS+Array&rft.au=Gitterman%2C+Y%3BPinsky%2C+V%3BShapira%2C+A&rft.aulast=Gitterman&rft.aufirst=Y&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 21 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - arrays; body waves; coda waves; data bases; data processing; discriminant analysis; earthquakes; elastic waves; Eurasia; explosions; frequency; guided waves; Israel seismic network; NORESS; nuclear explosions; P-waves; seismic networks; seismic waves; spectra; statistical analysis; surface waves; teleseismic signals ER - TY - JOUR T1 - Effective discrimination of icequakes on seismic records from Mawson Station AN - 52463139; 1999-046947 AB - The telemetered seismic station at Mawson, Antarctica, was one of the primary Australian stations participating in the Group of Scientific Experts Technical Test (GSETT) experiment to test an international seismic monitoring system. Mawson signals are continuously transmitted to the National Data Center (NDC) in Canberra and also forwarded to the International Data Centre (IDC) in Washington, where further event analysis is performed. Numerous seismic signals are recorded on seismograms from the Mawson station, with a likely mechanism of sudden fracturing of ice. The aim of this study was to find a procedure which will effectively discriminate seismic signals from these icequakes and thus speed up the analysis of the other detected events. An automatic algorithm was designed to identify icequakes according to their characteristics: frequency content, duration, azimuth, inclination and magnitude. The program was tested on a few datasets of randomly selected periods and one comprised of records of nuclear explosions detonated in the period of 1995/96. The preliminary results showed that this method was capable of distinguishing icequakes and could substantially improve the production of an automated event list. JF - Physics of the Earth and Planetary Interiors AU - Sinadinovski, C AU - Muirhead, K AU - Leonard, M AU - Spiliopoulos, S AU - Jepsen, D A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 203 EP - 211 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - seismograms KW - monitoring KW - discriminant analysis KW - explosions KW - icequakes KW - statistical analysis KW - magnitude KW - data processing KW - international cooperation KW - elastic waves KW - frequency KW - Mawson Station KW - detection KW - Antarctica KW - seismic waves KW - algorithms KW - nuclear explosions KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463139?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Effective+discrimination+of+icequakes+on+seismic+records+from+Mawson+Station&rft.au=Sinadinovski%2C+C%3BMuirhead%2C+K%3BLeonard%2C+M%3BSpiliopoulos%2C+S%3BJepsen%2C+D&rft.aulast=Sinadinovski&rft.aufirst=C&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 15 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - algorithms; Antarctica; data processing; detection; discriminant analysis; earthquakes; elastic waves; explosions; frequency; icequakes; international cooperation; magnitude; Mawson Station; monitoring; nuclear explosions; seismic waves; seismograms; statistical analysis ER - TY - JOUR T1 - The SIL data acquisition system; at present and beyond year 2000 AN - 52463087; 1999-046939 AB - The South Iceland Lowland (SIL) data acquisition system presently consists of 33 digital, three component seismic stations connected to a common data center. The automatic, on-line, earthquake analysis performed by the SIL network can be divided into three categories. (1) Single-station analysis performed at the site stations producing information about all incoming phases. A short message with data on the phase is sent to the center. (2) Multi-station analysis done at the center, using the phase reports from the stations and producing information about all detected events including estimates of location, magnitude and fault plane solutions. (3) Alert reporting to notify the operators of the network in cases of a priori defined changes in parameters derived from the single- and multi-station analysis. The system is designed for maximum automatic operation and minimum operational cost and has shown to be capable of automatic evaluation of more then 1000 earthquakes per day or episodically several earthquakes per minute. While no attempt is made to detect and locate teleseismic events, teleseismic data is automatically saved, based on e-mail messages from global seismological networks. Groups of events are analyzed using correlation techniques to obtain accurate absolute and relative locations of earthquakes with similar waveforms. In some areas within the network, most of the earthquakes correlate very highly with each other. Based on this a new approach is being taken regarding the automatic operation of the network. A geographically indexed data base will be created where different classes of earthquakes are stored. As new earthquakes are recorded by the network the system automatically looks for similar waveforms in this data base and, if found, takes the onset and first motion direction picks from there. The algorithm is planned to be implemented in late 1999. New methods have been developed to estimate the stress tensor based only on the microearthquake focal mechanisms and accurate relative locations. This is planned to be implemented into the automatic on-line procedures. Methods and related software are being developed for real-time monitoring of fault movements based on the high accuracy locations and fault plane solutions. JF - Physics of the Earth and Planetary Interiors AU - Bodvarsson, Reynir AU - Rognvaldsson, Sigurdur T AU - Slunga, Ragnar AU - Kjartansson, Einar A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 89 EP - 101 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - programs KW - focal mechanism KW - Western Europe KW - data acquisition KW - data processing KW - Europe KW - correlation KW - waveforms KW - displacements KW - teleseismic signals KW - computer programs KW - fault planes KW - volcanism KW - jokulhlaups KW - future KW - ground motion KW - data bases KW - South Iceland Lowland Program KW - seismic networks KW - Iceland KW - microearthquakes KW - earthquakes KW - faults KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+SIL+data+acquisition+system%3B+at+present+and+beyond+year+2000&rft.au=Bodvarsson%2C+Reynir%3BRognvaldsson%2C+Sigurdur+T%3BSlunga%2C+Ragnar%3BKjartansson%2C+Einar&rft.aulast=Bodvarsson&rft.aufirst=Reynir&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 38 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - computer programs; correlation; data acquisition; data bases; data processing; displacements; earthquakes; Europe; fault planes; faults; focal mechanism; future; ground motion; Iceland; jokulhlaups; microearthquakes; programs; seismic networks; South Iceland Lowland Program; teleseismic signals; volcanism; waveforms; Western Europe ER - TY - JOUR T1 - ORFEUS, a European initiative in broadband seismology; status and future plans AN - 52463062; 1999-046936 AB - Observatories and Research Facilities for European Seismology (ORFEUS) is the European initiative for the coordination of broadband seismology in Europe and the Mediterranean area. The organization is unique in its field, because it does not operate any stations, but acts as an intermediate between data users and data producers. The core activity of ORFEUS is the operation of a data center, which archives seismic waveform data of large seismic events and offers both off-line (CD-ROM) and on-line (Internet, WWW) access to both the archived data and global near real time Spyder (super R) data. ORFEUS coordination function is largely realized through its working groups and web site, which presently provide, among others, station siting and equipment overviews, technical information and support and a Seismological Software Library (SSL). Cooperation with other centers, for example, on data formats, is coordinated through the Federation of Digital Seismograph Networks (FDSN). Future developments emphasize improved data access through the Internet (WWW, Automatic Data Request Manager, NetDC protocol) and a regional version of the Global Spyder (super R) : EuroSpyder. Regularly, work meetings and workshops are organized to discuss future developments and its impact on ORFEUS. JF - Physics of the Earth and Planetary Interiors AU - van Eck, Torild AU - Dost, Bernard A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 45 EP - 55 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - programs KW - data processing KW - Europe KW - waveforms KW - information management KW - World Wide Web KW - data management KW - ORFEUS Program KW - computer programs KW - future KW - data bases KW - CD-ROM KW - broad-band spectra KW - earthquakes KW - Mediterranean region KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=ORFEUS%2C+a+European+initiative+in+broadband+seismology%3B+status+and+future+plans&rft.au=van+Eck%2C+Torild%3BDost%2C+Bernard&rft.aulast=van+Eck&rft.aufirst=Torild&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 20 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - broad-band spectra; CD-ROM; computer programs; data bases; data management; data processing; earthquakes; Europe; future; information management; Mediterranean region; ORFEUS Program; programs; waveforms; World Wide Web ER - TY - JOUR T1 - Phase onset time estimation at regional distances using the CUSUM algorithm AN - 52461791; 1999-046949 AB - A simple approach for the estimation of onset times of regional arrivals was tested. The method consists of the computation of the cumulative sum (CUSUM) of a test statistic, in this case, the absolute value of the trace amplitude, addition of a linear trend to the result and finding minima of the resulting function by various methods. The minima are located at the times where sudden increases in the trace amplitudes occur, i.e., at the phase onsets. The method requires frequency prefiltering in order to enhance the amplitude changes at the phase onsets. It was found that this algorithm performed comparably to a human analyst in finding onset times for Pn arrivals with varying S/N ratios. Moreover, when applied to the rest of the seismogram, it was effective in finding the onset times of the rest of the regional arrivals as long as these were clearly visible. In the rest of the cases, where there are many poorly defined arrivals, an analyst would also have difficulties in uniquely defining onset times. The method also shares with the human analyst the tendency to pick the onset times late when an emergent arrival is buried in noise. JF - Physics of the Earth and Planetary Interiors AU - Der, Zoltan A AU - Shumway, Robert H A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 227 EP - 246 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - seismograms KW - body waves KW - monitoring KW - explosions KW - quarries KW - Pn-waves KW - data processing KW - CUSUM algorithm KW - Kola Peninsula KW - Europe KW - elastic waves KW - Russian Federation KW - frequency KW - computer programs KW - Commonwealth of Independent States KW - signal-to-noise ratio KW - seismic waves KW - algorithms KW - arrival time KW - earthquakes KW - filters KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52461791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Phase+onset+time+estimation+at+regional+distances+using+the+CUSUM+algorithm&rft.au=Der%2C+Zoltan+A%3BShumway%2C+Robert+H&rft.aulast=Der&rft.aufirst=Zoltan&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 22 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - algorithms; amplitude; arrival time; body waves; Commonwealth of Independent States; computer programs; CUSUM algorithm; data processing; earthquakes; elastic waves; Europe; explosions; filters; frequency; Kola Peninsula; monitoring; Pn-waves; quarries; Russian Federation; seismic waves; seismograms; signal-to-noise ratio ER - TY - JOUR T1 - Development of calibration techniques for the Comprehensive Nuclear-Test-Ban Treaty (CTBT) international monitoring system AN - 52461767; 1999-046934 AB - A prototype International Data Centre (pIDC) is developing and testing concepts for the International Monitoring System that will be put into place to monitor compliance with the recently-signed Comprehensive Test Ban Treaty (CTBT). The testing includes the routine production of a daily bulletin of global seismic activity, several days after real time, since the beginning of 1995. A wider variety of seismic phases are used for location than is the practice of existing agencies producing global bulletins at greater delays, and another difference is that observed slowness vectors are used in addition to arrival time. Comparisons of pIDC bulletins with those provided by national agencies that operate denser networks have demonstrated both random and systematic errors in location that often exceed the formal error estimates. The pIDC is developing and testing techniques to reduce systematic biases through region- and path-dependent corrections to travel-time and slowness, and to better account for random errors. Initial results from this very long-term project are encouraging. JF - Physics of the Earth and Planetary Interiors AU - Bondar, Istvan AU - North, Robert G A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 11 EP - 24 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - monitoring KW - explosions KW - global KW - international cooperation KW - elastic waves KW - calibration KW - seismic sources KW - International Monitoring System seismic network KW - errors KW - traveltime KW - seismic networks KW - nuclear explosions KW - arrival time KW - earthquakes KW - accuracy KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52461767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Development+of+calibration+techniques+for+the+Comprehensive+Nuclear-Test-Ban+Treaty+%28CTBT%29+international+monitoring+system&rft.au=Bondar%2C+Istvan%3BNorth%2C+Robert+G&rft.aulast=Bondar&rft.aufirst=Istvan&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 5 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - accuracy; arrival time; calibration; Comprehensive Test Ban Treaty; earthquakes; elastic waves; errors; explosions; global; international cooperation; International Monitoring System seismic network; monitoring; nuclear explosions; seismic networks; seismic sources; traveltime ER - TY - JOUR T1 - Multi-component autoregressive techniques for the analysis of seismograms AN - 52461500; 1999-046950 AB - Autoregressive methods provide a very useful means of characterising a seismic record; calculating the power spectra of a seismic record and determining the onset time of different classes of arrivals. The representation of a time series with an autoregressive (AR) process of low order can be applied to both multi-component and single-component traces of broadband and short period seismograms. In three-component analysis the AR coefficients are represented as second-order tensors and include potential cross-coupling between the different components of the seismogram. Power spectrum estimation using autoregressive methods is demonstrated to be effective for both signal and noise and has the advantage over FFT methods in that it is smoother and less susceptible to statistical noise. The order of the AR process required to resolve the detail of the spectra is higher for a complex signal than for the preceding noise. This variation in the weighting of the AR coefficients provides an effective way to characterise data in a similar way to Spectragrams and Vespagrams and can be achieved with as few as five AR coefficients. For three-component analysis a display of the nine AR coefficients can be readily organised with three AR-grams for each of the original data components. The various elements of the AR tensor coefficients reflect different changes in the seismogram. The presence of secondary phases is often clearer on a cross-correlation AR-gram (NE or EN) than on the autocorrelation AR-gram (NN or NE). The variations in the weighting of the AR coefficients can be exploited in two different styles of approach to onset time estimation (phase picking). In the first method, two different AR representations are constructed for different portions of the record and the onset time is estimated from the point of transition. In the second method, a single AR representation is constructed and the onset time estimation is based on the growth of a component which is not represented by the AR process. Both methods can be applied to both single and three-component data. For large impulsive P phases, both methods picked the onset time within two samples of the manually estimated onset time. For S phases, where the energy is present on all three components, three-component AR onset time estimation is preferred to that using a single component. The approach is very robust with the three-component method picking the onset time of a very small S phase on a broad-band record to within 0.5 s of the best manual estimate. JF - Physics of the Earth and Planetary Interiors AU - Leonard, M AU - Kennett, B L N A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 247 EP - 263 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - seismograms KW - time series analysis KW - statistical analysis KW - data processing KW - correlation KW - seismographs KW - short-period seismographs KW - onset time KW - autoregression KW - Fiji KW - Oceania KW - broad-band spectra KW - signal-to-noise ratio KW - Melanesia KW - Talaud Island KW - earthquakes KW - regression analysis KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52461500?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Multi-component+autoregressive+techniques+for+the+analysis+of+seismograms&rft.au=Leonard%2C+M%3BKennett%2C+B+L+N&rft.aulast=Leonard&rft.aufirst=M&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 15 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - autoregression; broad-band spectra; correlation; data processing; earthquakes; Fiji; Melanesia; Oceania; onset time; regression analysis; seismograms; seismographs; short-period seismographs; signal-to-noise ratio; statistical analysis; Talaud Island; time series analysis ER - TY - JOUR T1 - The GEOSCOPE Program; its data center AN - 52461472; 1999-046935 AB - The purpose of the GEOSCOPE program was the installation of about 20 stations well distributed worldwide (in particular in the southern hemisphere), in the standard configuration defined by the FDSN (VBB 24 bit, continuous recording at 20 samples/s (sps)). The installation is almost complete. The effort has been focused on the accessibility of data from our Data Center. Data can be obtained either on line through the WWW GEOSCOPE server (http://geoscope.ipgp.jussieu.fr), or through our anonymous ftp, or through CD-ROM production or through the IRIS/SPYDER system for large earthquakes. In the near future easier ways will be available, such as autoDRM (automatic Data Request Management) and NetDC requests (Networked Data Centers, protocol proposed by the IRIS DMC of Seattle). JF - Physics of the Earth and Planetary Interiors AU - Roult, Genevieve AU - Montagner, Jean-Paul AU - Stutzmann, Eleonore AU - Sylvie, Barbier AU - Guiveneux, Gwenola A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 25 EP - 43 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - programs KW - global KW - data bases KW - CD-ROM KW - seismic networks KW - information management KW - GEOSCOPE KW - earthquakes KW - World Wide Web KW - data management KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52461472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+GEOSCOPE+Program%3B+its+data+center&rft.au=Roult%2C+Genevieve%3BMontagner%2C+Jean-Paul%3BStutzmann%2C+Eleonore%3BSylvie%2C+Barbier%3BGuiveneux%2C+Gwenola&rft.aulast=Roult&rft.aufirst=Genevieve&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 30 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - CD-ROM; data bases; data management; earthquakes; GEOSCOPE; global; information management; programs; seismic networks; World Wide Web ER - TY - JOUR T1 - Introduction to the verification regime of the Comprehensive Nuclear-Test-Ban Treaty AN - 52461451; 1999-046933 AB - In 1996 Comprehensive Nuclear-Test-Ban Treaty, known as CTBT, was adopted. In this brief paper, some background information on the new organization to prepare for the effective implementation of the Treaty is given. For the benefit of the scientific community, some research topics for the implementation of the Treaty are outlined. The focus is on topics selected from the realm of geosciences only. JF - Physics of the Earth and Planetary Interiors AU - Hoffmann, Wolfgang AU - Kebeasy, Rashad AU - Firbas, Petr A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 5 EP - 9 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - monitoring KW - explosions KW - regulations KW - global KW - geophysical methods KW - international cooperation KW - calibration KW - acoustical methods KW - hydroacoustic methods KW - seismic networks KW - nuclear explosions KW - earthquakes KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52461451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Introduction+to+the+verification+regime+of+the+Comprehensive+Nuclear-Test-Ban+Treaty&rft.au=Hoffmann%2C+Wolfgang%3BKebeasy%2C+Rashad%3BFirbas%2C+Petr&rft.aulast=Hoffmann&rft.aufirst=Wolfgang&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 3 N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - acoustical methods; calibration; Comprehensive Test Ban Treaty; earthquakes; explosions; geophysical methods; global; hydroacoustic methods; international cooperation; monitoring; nuclear explosions; regulations; seismic networks ER - TY - JOUR T1 - Using group velocities of seismic phases for regional event discrimination AN - 52460325; 1999-046944 AB - We examined over the Israel Seismic Network (ISN) the seismogram envelopes vs. group velocity V = R/T, where R is the epicenter distance and T the travel time, and found out a persistent difference between quarry blasts and earthquakes. The data include 53 seismic events occurring in northern Israel with magnitudes of M (sub L) = 1.0-2.6 and at distances of 15-310 km. Within the 1-4 km/s range we measured the velocity V (sub ms) at which the envelope reaches its maximum for each ISN station. A simple linear discrimination function c = b+0.33a, based on an empirical relationship between the V (sub ms) and R: V (sub ms) = a+b ln(R) provides effective separation between the regional earthquakes and explosions. These results are attributed to different excitation of regional surface waves from these two types of seismic events. JF - Physics of the Earth and Planetary Interiors AU - Pinsky, Vladimir AU - Shapira, Avi AU - Gitterman, Yefim A2 - Husebye, E. S. A2 - Dowla, F. U. Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 155 EP - 159 PB - Elsevier, Amsterdam VL - 113 IS - 1-4 SN - 0031-9201, 0031-9201 KW - Galilee KW - discriminant analysis KW - guided waves KW - explosions KW - quarries KW - statistical analysis KW - magnitude KW - data processing KW - elastic waves KW - Israel KW - surface waves KW - velocity structure KW - traveltime KW - epicenters KW - seismic waves KW - seismic networks KW - Asia KW - earthquakes KW - Middle East KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52460325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Using+group+velocities+of+seismic+phases+for+regional+event+discrimination&rft.au=Pinsky%2C+Vladimir%3BShapira%2C+Avi%3BGitterman%2C+Yefim&rft.aulast=Pinsky&rft.aufirst=Vladimir&rft.date=1999-06-01&rft.volume=113&rft.issue=1-4&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Conference title - Seismological data and practice; beyond year 2000; the 29th General Assembly of IASPEI 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 - 11 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - Asia; data processing; discriminant analysis; earthquakes; elastic waves; epicenters; explosions; Galilee; guided waves; Israel; magnitude; Middle East; quarries; seismic networks; seismic waves; statistical analysis; surface waves; traveltime; velocity structure ER - TY - JOUR T1 - The isotopic composition of atmospheric methane AN - 50164638; 1999-070704 AB - Measurements of the (super 13) C/ (super 12) C, D/H and (super 14) C composition of atmospheric methane (CH (sub 4) ) between 1988 and 1995 are presented. The (super 13) C/ (super 12) C measurements represent the first global data set with time series records presented for Point Barrow, Alaska (71 degrees N), Olympic Peninsula, Washington (48 degrees N), Mauna Loa, Hawaii (20 degrees N), American Samoa (14 degrees S), Cape Grim, Australia (41 degrees S), and Baring Head, New Zealand (41 degrees S). North-south trends of the (super 13) C/ (super 12) C and D/H of atmospheric CH (sub 4) from air samples collected during oceanographic research cruises in the Pacific Ocean are also presented. The mean annual delta (super 13) C increased southward from about -47.7 per mil at 71 degrees N to -41.2 per mil at 41 degrees S. The amplitude of the seasonal cycle in delta (super 13) C ranged from about 0.4 per mil at 71 degrees N to 0.1 per mil at 14 degrees S. The seasonal delta (super 13) C cycle at sites in tropical latitudes could be explained by CH (sub 4) loss via reaction with OH radical, whereas at temperate and polar latitudes in the northern hemisphere seasonal changes in the delta (super 13) C of the CH (sub 4) source were needed to explain the seasonal cycle. The higher delta (super 13) C value in the southern (-47.2 per mil) versus northern (-47.4 per mil) hemisphere was a result of interhemispheric transport of CH (sub 4) . A slight interannual delta (super 13) C increase of 0.02+ or -0.005 per mil yr (super -1) was measured at all sites between 1990 and 1995. The mean delta D of atmospheric CH (sub 4) was -86+ or -3 per mil between 1989 and 1995 with a 10 per mil depletion in the northern versus southern hemisphere. The (super 14) C content of CH (sub 4) measured at 48 degrees N increased from 122 to 128 percent modern between 1987 and 1995. The proportion of CH (sub 4) released from fossil sources was 18+ or -9% in the early 1990s as derived from the (super 14) C content of CH (sub 4) . Copyright 1999 by the American Geophysical Union. JF - Global Biogeochemical Cycles AU - Quay, Paul AU - Stutsman, John AU - Wilbur, David AU - Snover, Amy AU - Dlugokencky, Ed AU - Brown, Tom Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 445 EP - 461 PB - American Geophysical Union, Washington, DC VL - 13 IS - 2 SN - 0886-6236, 0886-6236 KW - United States KW - isotopes KW - aliphatic hydrocarbons KW - Mauna Loa KW - stable isotopes KW - Olympic Peninsula KW - radioactive isotopes KW - carbon KW - Australia KW - deuterium KW - geochemistry KW - Washington KW - methane KW - Australasia KW - annual variations KW - time series analysis KW - Samoa KW - isotope ratios KW - global KW - C-13/C-12 KW - statistical analysis KW - Hawaii KW - atmosphere KW - East Pacific Ocean Islands KW - alkanes KW - Point Barrow KW - measurement KW - geochemical cycle KW - organic compounds KW - D/H KW - hydrogen KW - Northern Alaska KW - Oceania KW - hydrocarbons KW - Alaska KW - air KW - seasonal variations KW - Polynesia KW - carbon cycle KW - C-14 KW - New Zealand KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50164638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Biogeochemical+Cycles&rft.atitle=The+isotopic+composition+of+atmospheric+methane&rft.au=Quay%2C+Paul%3BStutsman%2C+John%3BWilbur%2C+David%3BSnover%2C+Amy%3BDlugokencky%2C+Ed%3BBrown%2C+Tom&rft.aulast=Quay&rft.aufirst=Paul&rft.date=1999-06-01&rft.volume=13&rft.issue=2&rft.spage=445&rft.isbn=&rft.btitle=&rft.title=Global+Biogeochemical+Cycles&rft.issn=08866236&rft_id=info:doi/10.1029%2F1998GB900006 L2 - http://www.agu.org/journals/gb/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 63 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Univ. Wash., Sch. Oceanogr., Contrib. No. 2200 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - air; Alaska; aliphatic hydrocarbons; alkanes; annual variations; atmosphere; Australasia; Australia; C-13/C-12; C-14; carbon; carbon cycle; D/H; deuterium; East Pacific Ocean Islands; geochemical cycle; geochemistry; global; Hawaii; hydrocarbons; hydrogen; isotope ratios; isotopes; Mauna Loa; measurement; methane; New Zealand; Northern Alaska; Oceania; Olympic Peninsula; organic compounds; Point Barrow; Polynesia; radioactive isotopes; Samoa; seasonal variations; stable isotopes; statistical analysis; time series analysis; United States; Washington DO - http://dx.doi.org/10.1029/1998GB900006 ER - TY - JOUR T1 - Effects of sinking of salt rejected during formation of sea ice on results of an ocean-atmosphere-sea ice climate model AN - 17375346; 4582971 AB - We show that results of an ocean-atmosphere-sea-ice model are sensitive to the treatment of salt rejected during formation of sea ice. In our Control simulation, we place all rejected salt in the top ocean-model level. In the Plume simulation, we instantaneously mix rejected salt into the subsurface ocean, to a maximum depth which depends on local density gradients. This mimics the effects of subgrid-scale convection of rejected salt. The results of the Plume simulation are more realistic than those of the Control simulation: the spatial pattern of simulated salinities (especially in the Southern Ocean), deep-ocean temperatures, simulated sea-ice extents and surface air temperatures all agree better with observations. A similar pair of simulations using horizontal tracer diffusion instead of the Gent-McWilliams eddy parameterization show similar changes due to instantaneous mixing of rejected salt. JF - Geophysical Research Letters AU - Duffy, P B AU - Eby, M AU - Weaver, A J AD - Atmopheric Science Division, L-256, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA Y1 - 1999/06// PY - 1999 DA - Jun 1999 SP - 1739 EP - 1742 VL - 26 IS - 12 SN - 0094-8276, 0094-8276 KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Convection KW - Ice formation KW - Ocean-ice-atmosphere system KW - Climate KW - Sinking KW - Atmosphere KW - Mixing KW - Models KW - Salts KW - Sea ice KW - Salinity KW - Eddies KW - Oceans KW - Sea Ice KW - PS, Antarctic Ocean KW - Plumes KW - O 2090:Instruments/Methods KW - Q2 09241:General KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17375346?accountid=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=Geophysical+Research+Letters&rft.atitle=Effects+of+sinking+of+salt+rejected+during+formation+of+sea+ice+on+results+of+an+ocean-atmosphere-sea+ice+climate+model&rft.au=Duffy%2C+P+B%3BEby%2C+M%3BWeaver%2C+A+J&rft.aulast=Duffy&rft.aufirst=P&rft.date=1999-06-01&rft.volume=26&rft.issue=12&rft.spage=1739&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F1999GL900286 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Convection; Ice formation; Salts; Salinity; Sea ice; Ocean-ice-atmosphere system; Climate; Sinking; Plumes; Models; Eddies; Oceans; Sea Ice; Mixing; Atmosphere; PS, Antarctic Ocean DO - http://dx.doi.org/10.1029/1999GL900286 ER - TY - JOUR T1 - Aqueous oxidation of trichloroethene (TCE): a kinetic analysis AN - 16130694; 4547206 AB - An empirical kinetic rate law appropriate for many ground waters (neutral pH, aerobic) has been determined for the aqueous oxidation of trichloroethene (TCE), one of the most volumetrically important chlorinated hydrocarbon pollutants. Mass balances were monitored by measuring both the rate of disappearance of TCE and the rate of appearance of CO sub(2) and Cl super(-). Dilute buffer solutions were used to fix pH and stoichiometrically sufficient amounts of dissolved O sub(2) were used to make the reactions pseudo zero-order in O sub(2). Using a standard chemical kinetic approach, two orders-of-magnitude in initial TCE concentration were spanned and the resulting double-log plot (log concentration vs. log initial rate) was used to determine the rate constant (k = 5.77 plus or minus 1.06x10 super(-7) s super(-1)) and "true" (i.e., with respect to concentration, not time) reaction order (n sub(c) = 0.85 plus or minus 0.03) for the rate law. By determining rate constants over the temperature interval 343-373 K, the Arrhenius activation energy (E sub(a)) for the reaction was determined to be 108.0 plus or minus 4.5 kJ/mol. The rate law and derived kinetic parameters may be used in reactive transport simulators in order to account for aqueous oxidation of TCE as a function of temperature. JF - Applied Geochemistry AU - Knauss, K G AU - Dibley, MJ AU - Leif, R N AU - Mew, DA AU - Aines, R D AD - Geosciences and Environmental Technologies Division, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA, knauss@llnl.gov Y1 - 1999/06// PY - 1999 DA - Jun 1999 SP - 531 EP - 541 VL - 14 IS - 4 SN - 0883-2927, 0883-2927 KW - trichloroethene KW - Pollution Abstracts KW - Oxidation KW - Temperature KW - Groundwater pollution KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16130694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Aqueous+oxidation+of+trichloroethene+%28TCE%29%3A+a+kinetic+analysis&rft.au=Knauss%2C+K+G%3BDibley%2C+MJ%3BLeif%2C+R+N%3BMew%2C+DA%3BAines%2C+R+D&rft.aulast=Knauss&rft.aufirst=K&rft.date=1999-06-01&rft.volume=14&rft.issue=4&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2FS0883-2927%2898%2900084-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-10-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Oxidation; Temperature; Groundwater pollution DO - http://dx.doi.org/10.1016/S0883-2927(98)00084-5 ER - TY - JOUR T1 - Clinopyroxene + liquid equilibria to 100 kbar and 2450 K AN - 52446054; 1999-057659 AB - Accurate predictions of clinopyroxene compositions in natural systems must be available before alternative hypotheses for melting and differentiation can be evaluated. Expressions derived from least squares regression analysis of experimental clinopyroxene-liquid pairs describe clinopyroxene-melt equilibria, and allow calculation of equilibrium clinopyroxene compositions. The calibration database includes clinopyroxenes synthesized from natural and synthetic basalt compositions at 0-100 kbar and 1350-2450 K. Empirical expressions were also derived since these provide more precise estimates of clinopyroxene compositions, and may be easily incorporated into existing liquid line-of-descent models. They are also useful for calculation of high P liquid fractionation and for constraining P-T conditions for basalts produced by partial melting of a pyroxene-bearing source. Since models of mantle melting often rely on expressions involving simple element ratios, partition coefficients (K (super cpx/liq) (sub d) ) for Na and Ti were calibrated as a function of P, T and composition. K (super cpx/liq) (sub Na) , while sensitive to composition was relatively insentitive to P and T, whereas K (super cpx/liq) (sub Na) increased substantially with increasing P, being > 1 in some experiments. Since oceanic basalts have variable Na/Ti values, the potential exists for partial melting depths to be inferred from K (super cpx/liq) (sub Na) . JF - Contributions to Mineralogy and Petrology AU - Putirka, Keith Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 151 EP - 163 PB - Springer International, Heidelberg-New York VL - 135 IS - 2-3 SN - 0010-7999, 0010-7999 KW - silicates KW - partial melting KW - regression KW - calibration KW - temperature KW - pyroxene group KW - melting KW - clinopyroxene KW - chemical reactions KW - phase equilibria KW - thermodynamic properties KW - chemical composition KW - P-T conditions KW - chain silicates KW - experimental studies KW - pressure KW - jadeite KW - differentiation KW - statistical analysis KW - free energy KW - high pressure KW - equilibrium KW - least-squares analysis KW - computer programs KW - sea-level changes KW - partition coefficients KW - crystallization KW - phenocrysts KW - high temperature KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52446054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Contributions+to+Mineralogy+and+Petrology&rft.atitle=Clinopyroxene+%2B+liquid+equilibria+to+100+kbar+and+2450+K&rft.au=Putirka%2C+Keith&rft.aulast=Putirka&rft.aufirst=Keith&rft.date=1999-05-01&rft.volume=135&rft.issue=2-3&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Contributions+to+Mineralogy+and+Petrology&rft.issn=00107999&rft_id=info:doi/10.1007%2Fs004100050503 L2 - http://www.springerlink.com/(zmx2wiu4y01pcgigj5i3jxf5)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100406,1 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 - 52 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMPEAP N1 - SubjectsTermNotLitGenreText - calibration; chain silicates; chemical composition; chemical reactions; clinopyroxene; computer programs; crystallization; differentiation; equilibrium; experimental studies; free energy; high pressure; high temperature; jadeite; least-squares analysis; melting; P-T conditions; partial melting; partition coefficients; phase equilibria; phenocrysts; pressure; pyroxene group; regression; sea-level changes; silicates; statistical analysis; temperature; thermodynamic properties DO - http://dx.doi.org/10.1007/s004100050503 ER - TY - JOUR T1 - A high resolution estimate of the inorganic nitrogen flux from the Scheldt Estuary to the coastal North Sea during a nitrogen-limited algal bloom, spring 1995 AN - 52444037; 1999-057802 AB - A fully transient, multicomponent reactive transport model is used to calculate N (sub 2) cycling in the Scheldt estuary in Belgium and the Netherlands, to provide an acceptable description of the estuarine residual circulation, including daily runoff values and the forcing from the long-term change in tidal amplitude. The inorganic N (sub 2) fluxes were computed during 210 days from 1 December 1994 to 30 June 1995, and input to the model included sets of upstream river discharges and solute concentrations and tidal forcings. The computed transient N (sub 2) fluxes are compared to estimates based on an estuarine steady-state assumption for the period when an N (sub 2) -limited Phaeocystis bloom developed in the North Sea; underestimation of the steady-state method is of an order of 100 %. JF - Geochimica et Cosmochimica Acta AU - Regnier, Pierre AU - Steefel, Carl I Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 1359 EP - 1374 PB - Pergamon, Oxford VL - 63 IS - 9 SN - 0016-7037, 0016-7037 KW - sea water KW - stream transport KW - rivers and streams KW - data processing KW - Europe KW - salinity KW - algae KW - Phaeocystis KW - nitrogen KW - North Sea Coast KW - Scheldt River KW - digital simulation KW - CONTRASTE KW - Netherlands KW - estuarine environment KW - geochemistry KW - productivity KW - hydrology KW - high-resolution methods KW - Plantae KW - ocean circulation KW - Western Europe KW - numerical models KW - pelagic environment KW - surface water KW - solutes KW - migration of elements KW - hydrochemistry KW - inorganic materials KW - geochemical cycle KW - tides KW - marine environment KW - Belgium KW - coastal environment KW - seasonal variations KW - North Sea KW - North Atlantic KW - Atlantic Ocean KW - algal blooms KW - 02B:Hydrochemistry KW - 21:Hydrogeology KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52444037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=A+high+resolution+estimate+of+the+inorganic+nitrogen+flux+from+the+Scheldt+Estuary+to+the+coastal+North+Sea+during+a+nitrogen-limited+algal+bloom%2C+spring+1995&rft.au=Regnier%2C+Pierre%3BSteefel%2C+Carl+I&rft.aulast=Regnier&rft.aufirst=Pierre&rft.date=1999-05-01&rft.volume=63&rft.issue=9&rft.spage=1359&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2899%2900034-4 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 69 N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - Includes an appendix N1 - Last updated - 2014-03-14 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - algae; algal blooms; Atlantic Ocean; Belgium; coastal environment; CONTRASTE; data processing; digital simulation; estuarine environment; Europe; geochemical cycle; geochemistry; high-resolution methods; hydrochemistry; hydrology; inorganic materials; marine environment; migration of elements; Netherlands; nitrogen; North Atlantic; North Sea; North Sea Coast; numerical models; ocean circulation; pelagic environment; Phaeocystis; Plantae; productivity; rivers and streams; salinity; Scheldt River; sea water; seasonal variations; solutes; stream transport; surface water; tides; Western Europe DO - http://dx.doi.org/10.1016/S0016-7037(99)00034-4 ER - TY - JOUR T1 - Ground water plume migration in a complex hydrogeologic setting at Lawrence Livermore National Laboratory (LLNL), Site 300 AN - 52067418; 2002-067696 JF - Abstracts with Programs - Geological Society of America AU - Madrid, Victor AU - Hoffman, Fredric AU - Demir, Zafer AU - Anonymous Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 76 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - chlorinated hydrocarbons KW - contaminant plumes KW - isotopes KW - pollution KW - tritium KW - environmental analysis KW - Tracy California KW - ground water KW - aquifers KW - California KW - organic compounds KW - radioactive isotopes KW - transport KW - San Joaquin County California KW - hydrogen KW - halogenated hydrocarbons KW - trichloroethylene KW - Superfund sites KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52067418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ground+water+plume+migration+in+a+complex+hydrogeologic+setting+at+Lawrence+Livermore+National+Laboratory+%28LLNL%29%2C+Site+300&rft.au=Madrid%2C+Victor%3BHoffman%2C+Fredric%3BDemir%2C+Zafer%3BAnonymous&rft.aulast=Madrid&rft.aufirst=Victor&rft.date=1999-05-01&rft.volume=31&rft.issue=6&rft.spage=76&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 95th 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 - aquifers; California; chlorinated hydrocarbons; contaminant plumes; environmental analysis; ground water; halogenated hydrocarbons; hydrogen; isotopes; organic compounds; pollution; radioactive isotopes; San Joaquin County California; Superfund sites; Tracy California; transport; trichloroethylene; tritium; United States ER - TY - JOUR T1 - Hydrostratigraphic analysis; ground water cleanup at Lawrence Livermore National Laboratory, Livermore, California AN - 52067143; 2002-067739 JF - Abstracts with Programs - Geological Society of America AU - Noyes, Charles D AU - Maley, Michael P AU - Blake, Richard G AU - Anonymous Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 84 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Livermore California KW - pollution KW - Alameda County California KW - environmental analysis KW - remediation KW - ground water KW - aquifers KW - California KW - mitigation KW - hydrostratigraphy KW - alluvium aquifers KW - transport KW - Lawrence Livermore National Laboratory KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52067143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Hydrostratigraphic+analysis%3B+ground+water+cleanup+at+Lawrence+Livermore+National+Laboratory%2C+Livermore%2C+California&rft.au=Noyes%2C+Charles+D%3BMaley%2C+Michael+P%3BBlake%2C+Richard+G%3BAnonymous&rft.aulast=Noyes&rft.aufirst=Charles&rft.date=1999-05-01&rft.volume=31&rft.issue=6&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 95th 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 - Alameda County California; alluvium aquifers; aquifers; California; environmental analysis; ground water; hydrostratigraphy; Lawrence Livermore National Laboratory; Livermore California; mitigation; pollution; remediation; transport; United States ER - TY - JOUR T1 - Earthquake source and Earth structural influences on strong ground motions AN - 52066033; 2002-067542 JF - Abstracts with Programs - Geological Society of America AU - Dreger, Douglas AU - Stidham, Christiane AU - Larsen, Shawn AU - Anonymous Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 51 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - focal mechanism KW - three-dimensional models KW - direct problem KW - models KW - California KW - kinematics KW - San Francisco Bay region KW - earthquake prediction KW - ground motion KW - earthquakes KW - Santa Cruz County California KW - Loma Prieta earthquake 1989 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52066033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Earthquake+source+and+Earth+structural+influences+on+strong+ground+motions&rft.au=Dreger%2C+Douglas%3BStidham%2C+Christiane%3BLarsen%2C+Shawn%3BAnonymous&rft.aulast=Dreger&rft.aufirst=Douglas&rft.date=1999-05-01&rft.volume=31&rft.issue=6&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 95th 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 - California; direct problem; earthquake prediction; earthquakes; focal mechanism; ground motion; kinematics; Loma Prieta earthquake 1989; models; San Francisco Bay region; Santa Cruz County California; three-dimensional models; United States ER - TY - JOUR T1 - A three-dimensional seismic velocity model of the San Francisco Bay area AN - 52064963; 2002-067828 JF - Abstracts with Programs - Geological Society of America AU - Stidham, Christiane AU - Dreger, Douglas AU - Romanowicz, Barbara AU - Larsen, Shawn AU - Anonymous Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 98 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - upper mantle KW - three-dimensional models KW - mantle KW - elastic waves KW - continental crust KW - California KW - San Francisco Bay region KW - seismicity KW - velocity KW - propagation KW - seismic waves KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52064963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+three-dimensional+seismic+velocity+model+of+the+San+Francisco+Bay+area&rft.au=Stidham%2C+Christiane%3BDreger%2C+Douglas%3BRomanowicz%2C+Barbara%3BLarsen%2C+Shawn%3BAnonymous&rft.aulast=Stidham&rft.aufirst=Christiane&rft.date=1999-05-01&rft.volume=31&rft.issue=6&rft.spage=98&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 95th 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 - California; continental crust; crust; elastic waves; mantle; propagation; San Francisco Bay region; seismic waves; seismicity; three-dimensional models; United States; upper mantle; velocity ER - TY - JOUR T1 - Field, laboratory, and geochemical modeling studies of metal mobility from base-metal slag deposits at Penn Mine, California AN - 52063772; 2002-067746 JF - Abstracts with Programs - Geological Society of America AU - Parsons, Michael B AU - Bird, Dennis K AU - Einaudi, Marco T AU - Alpers, Charles N AU - Bourcier, William L AU - Anonymous Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 85 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Penn Mine KW - water supply KW - slag KW - pollutants KW - Central California KW - surface water KW - agriculture KW - pollution KW - irrigation KW - ground water KW - California KW - transport KW - metal ores KW - chemical composition KW - base metals KW - Calaveras County California 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/52063772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Field%2C+laboratory%2C+and+geochemical+modeling+studies+of+metal+mobility+from+base-metal+slag+deposits+at+Penn+Mine%2C+California&rft.au=Parsons%2C+Michael+B%3BBird%2C+Dennis+K%3BEinaudi%2C+Marco+T%3BAlpers%2C+Charles+N%3BBourcier%2C+William+L%3BAnonymous&rft.aulast=Parsons&rft.aufirst=Michael&rft.date=1999-05-01&rft.volume=31&rft.issue=6&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 95th 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 - agriculture; base metals; Calaveras County California; California; Central California; chemical composition; ground water; irrigation; metal ores; Penn Mine; pollutants; pollution; slag; surface water; transport; United States; water supply ER - TY - JOUR T1 - Results of the geothermal geobotany hyperspectral imaging program AN - 50869714; 2008-095919 JF - DOE/ID Report AU - Martini, Brigette A AU - Cochran, S A AU - Potts, D C AU - Silver, E A AU - Pickles, William L AU - Reed, Marshall Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 2.25 EP - 2.29 PB - U. S. Department of Energy, Office of Fossil Energy, Washington, DC KW - United States KW - high-resolution methods KW - imagery KW - Mono County California KW - geophysical methods KW - indicators KW - Long Valley Caldera KW - geothermal energy KW - California KW - geothermal fields KW - The Geysers KW - infrared methods KW - AVIRIS KW - energy sources KW - Mammoth Mountain KW - heat transfer KW - paleobotany KW - spectroscopy KW - remote sensing KW - airborne methods KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50869714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Results+of+the+geothermal+geobotany+hyperspectral+imaging+program&rft.au=Martini%2C+Brigette+A%3BCochran%2C+S+A%3BPotts%2C+D+C%3BSilver%2C+E+A%3BPickles%2C+William+L%3BReed%2C+Marshall&rft.aulast=Martini&rft.aufirst=Brigette&rft.date=1999-05-01&rft.volume=&rft.issue=&rft.spage=2.25&rft.isbn=&rft.btitle=&rft.title=DOE%2FID+Report&rft.issn=&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 - 4 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - #06452 N1 - SubjectsTermNotLitGenreText - airborne methods; AVIRIS; California; energy sources; geophysical methods; geothermal energy; geothermal fields; heat transfer; high-resolution methods; imagery; indicators; infrared methods; Long Valley Caldera; Mammoth Mountain; Mono County California; paleobotany; remote sensing; spectroscopy; The Geysers; United States ER - TY - JOUR T1 - Microseismicity survey of the El Hoyo-Monte Galan geothermal region in Nicaragua AN - 50864080; 2008-095921 JF - DOE/ID Report AU - Kasameyer, Paul AU - Smith, Albert T AU - Hutchings, Lawrence J AU - Reed, Marshall Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 2.35 EP - 2.40 PB - U. S. Department of Energy, Office of Fossil Energy, Washington, DC KW - Marabios Range KW - focal mechanism KW - microseismic methods KW - statistical analysis KW - geophysical methods KW - Nicaragua KW - cluster analysis KW - models KW - geothermal energy KW - geothermal fields KW - fracture zones KW - energy sources KW - velocity structure KW - volcanoes KW - surveys KW - reservoir properties KW - earthquakes KW - Central America KW - uncertainty KW - El Hoyo-Monte Galan Field 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/50864080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Microseismicity+survey+of+the+El+Hoyo-Monte+Galan+geothermal+region+in+Nicaragua&rft.au=Kasameyer%2C+Paul%3BSmith%2C+Albert+T%3BHutchings%2C+Lawrence+J%3BReed%2C+Marshall&rft.aulast=Kasameyer&rft.aufirst=Paul&rft.date=1999-05-01&rft.volume=&rft.issue=&rft.spage=2.35&rft.isbn=&rft.btitle=&rft.title=DOE%2FID+Report&rft.issn=&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 - 3 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #06452 N1 - SubjectsTermNotLitGenreText - Central America; cluster analysis; earthquakes; El Hoyo-Monte Galan Field; energy sources; focal mechanism; fracture zones; geophysical methods; geothermal energy; geothermal fields; Marabios Range; microseismic methods; models; Nicaragua; reservoir properties; statistical analysis; surveys; uncertainty; velocity structure; volcanoes ER - TY - JOUR T1 - Extensional structure on the eastern edge of the Burang Basin, southwestern Xizang, China AN - 50567200; 2008-124722 AB - 1:100000 geological mapping has revealed a previously unrecognized Cenozoic N-S-trending extensional fault on the eastern edge of the Burang Basin, southwestern Xizang. Its hanging wall consists of conglomerate of the Pliocene Burang Formation, and its footwall is composed of granite-gneiss, granitic mylonite and carbonate mylonite of the Pre-Cambrian Nyalam Group. 208Pb/232Th ion microprobe dating of undeformed and deformed leucogranite emplaced into the mylonite in the footwall of the fault yields ages of 8.0+ or -0.2 Ma and 19+ or -1 Ma respectively, and regional geological data also show that the normal fault is a component part of the large-scale WNW-trending southern Xizang detachment extensional structure developed along the northern slope of the Higher Himalayas. The authors infer that the change of the strike of the extensional fault from NNW to N-S in the Burang Basin and the formation of the basin are related to the right-lateral Karakorum fault system. JF - Dizhi Lunping = Geological Review AU - Chen, Zhengle AU - Wang, Xiaofeng AU - Ryerson, J F AU - Yin, An AU - Murphy, M Y1 - 1999/05// PY - 1999 DA - May 1999 SP - 295 EP - 300 PB - Science Press, Beijing VL - 45 IS - 3 SN - 0371-5736, 0371-5736 KW - Far East KW - right-lateral faults KW - lateral faults KW - extension tectonics KW - Cenozoic KW - southwestern Xizang China KW - sedimentary rocks KW - neotectonics KW - Xizang China KW - metamorphic rocks KW - Burang Basin KW - Himalayas KW - tectonics KW - Asia KW - cleavage KW - faults KW - China KW - shear zones KW - structural analysis KW - decollement KW - mylonites KW - conglomerate KW - Tertiary KW - Neogene KW - Pliocene KW - foliation KW - clastic rocks KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50567200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Dizhi+Lunping+%3D+Geological+Review&rft.atitle=Extensional+structure+on+the+eastern+edge+of+the+Burang+Basin%2C+southwestern+Xizang%2C+China&rft.au=Chen%2C+Zhengle%3BWang%2C+Xiaofeng%3BRyerson%2C+J+F%3BYin%2C+An%3BMurphy%2C+M&rft.aulast=Chen&rft.aufirst=Zhengle&rft.date=1999-05-01&rft.volume=45&rft.issue=3&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=Dizhi+Lunping+%3D+Geological+Review&rft.issn=03715736&rft_id=info:doi/ LA - Chinese DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. sects. N1 - Last updated - 2012-06-07 N1 - CODEN - TCLPAJ N1 - SubjectsTermNotLitGenreText - Asia; Burang Basin; Cenozoic; China; clastic rocks; cleavage; conglomerate; decollement; extension tectonics; Far East; faults; foliation; Himalayas; lateral faults; metamorphic rocks; mylonites; Neogene; neotectonics; Pliocene; right-lateral faults; sedimentary rocks; shear zones; southwestern Xizang China; structural analysis; tectonics; Tertiary; Xizang China ER - TY - JOUR T1 - PCR detection of bacteria in seven minutes AN - 17214548; 4493278 AB - Identifying, monitoring, and isolating the source of an outbreak of infectious disease can sometimes be difficult. The process would be greatly facilitated by a portable instrument that could be used in any suspect location and was capable of rapidly detecting and characterizing microbial pathogens. Nucleic acid analysis is preferable to immunoassays for such a test because detailed genetic information can be obtained about a particular microbe's virulence, antibiotic resistance, and epidemiology. A growing number of these bacterial test use polymerase chain reaction (PCR) because of its demonstrated effectiveness, sensitivity, and reliability. For field use, a variation of standard PCR called real-time PCR is the most practical, because it does not require time-consuming post-PCR manipulation and processing of the reaction with slab gel and capillary electrophoresis, hybridization to immobilized oligonucleotides, or mass spectrometry. JF - Science (Washington) AU - Belgrader, P AU - Benett, W AU - Hadley, D AU - Richards, J AU - Stratton, P AU - Mariella, R Jr AU - Milanovich, F AD - Lawrence Livermore Natl. Lab., Biol. and Biotechnol. Res. Program, P.O. Box 808, L-452, 7000 East Ave., Livermore, CA 94551, USA, belgrader1@llnl.gov Y1 - 1999/04/16/ PY - 1999 DA - 1999 Apr 16 SP - 449 EP - 450 PB - American Association for the Advancement of Science VL - 284 IS - 5413 SN - 0036-8075, 0036-8075 KW - Polymerase chain reaction KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Characterization KW - Virulence KW - Detection KW - Antibiotic resistance KW - Bacteria KW - Identification KW - Epidemiology KW - N 14610:Occurrence, isolation & assay KW - A 01116:Bacteria KW - J 02704:Enumeration KW - W 30965:Miscellaneous, Reviews KW - W3 33130:Genetic based (PCR, etc.) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17214548?accountid=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=Science+%28Washington%29&rft.atitle=PCR+detection+of+bacteria+in+seven+minutes&rft.au=Belgrader%2C+P%3BBenett%2C+W%3BHadley%2C+D%3BRichards%2C+J%3BStratton%2C+P%3BMariella%2C+R+Jr%3BMilanovich%2C+F&rft.aulast=Belgrader&rft.aufirst=P&rft.date=1999-04-16&rft.volume=284&rft.issue=5413&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&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 - Virulence; Antibiotic resistance; Identification; Detection; Characterization; Polymerase chain reaction; Epidemiology; Bacteria ER - TY - JOUR T1 - Occupational allergy to animals. AN - 69757900; 10329906 AB - This chapter reviews the epidemiology, manifestations, etiologic agents, and exposure controls related to occupational allergies from animals and insects, including both respiratory and dermatologic responses. The overall prevalence of allergic respiratory symptoms in exposed workers is about 23% 4-9% of exposed individuals develop asthma. Symptom development is related to duration and intensity of exposure. The most prevalent dermatologic findings are contact urticaria and eczematous dermatitis. While a history of atopy is associated with the risk of symptom development, this factor has poor predictive value for any given individual. Similarly, skin testing and RAST testing are not sufficiently predictive to be recommended as screening tools, although they may identify individuals at some increased risk. The specific tissue sources of the major allergens are reviewed; for laboratory rats and mice, a urinary protein complex has been implicated. Environmental control of antigens is key in the prevention of allergic disease. Task-specific engineering controls, general environmental hygiene, training, and medical surveillance of workers are important elements of the prevention program. JF - Occupational medicine (Philadelphia, Pa.) AU - Seward, J P AD - Health Services Department, Lawrence Livermore National Laboratory, Livermore, California 94551, USA. PY - 1999 SP - 285 EP - 304 VL - 14 IS - 2 SN - 0885-114X, 0885-114X KW - Index Medicus KW - Rats KW - Animals KW - Cattle KW - Risk Factors KW - Humans KW - Dogs KW - Incidence KW - Mice KW - Prevalence KW - Hypersensitivity -- epidemiology KW - Occupational Diseases -- diagnosis KW - Occupational Health KW - Hypersensitivity -- diagnosis KW - Animal Technicians -- education KW - Animal Population Groups KW - Occupational Diseases -- prevention & control KW - Occupational Diseases -- etiology KW - Hypersensitivity -- prevention & control KW - Veterinarians -- statistics & numerical data KW - Animal Husbandry -- education KW - Animal Technicians -- statistics & numerical data KW - Animal Husbandry -- statistics & numerical data KW - Hypersensitivity -- etiology KW - Occupational Diseases -- epidemiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69757900?accountid=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=Occupational+medicine+%28Philadelphia%2C+Pa.%29&rft.atitle=Occupational+allergy+to+animals.&rft.au=Seward%2C+J+P&rft.aulast=Seward&rft.aufirst=J&rft.date=1999-04-01&rft.volume=14&rft.issue=2&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Occupational+medicine+%28Philadelphia%2C+Pa.%29&rft.issn=0885114X&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 - Assimilation of seawater-derived components in an oceanic volcano; evidence from matrix glasses and glass inclusions from Loihi Seamount, Hawaii AN - 52491261; 1999-032025 AB - We report major element, H (sub 2) O, Cl, B, and Be analyses of matrix glass and olivine-hosted glass inclusions from two pillow lava samples dredged from 4200 m on the southern rift zone of Loihi seamount, Hawaii. Matrix glasses (MgO approximately 9 wt.%) have H (sub 2) O, Cl, and B contents considerably in excess of the values expected from mantle melting or fractional crystallization of parental Loihi magmas. Glass inclusions have H (sub 2) O, Cl, and B contents ranging from the high values of the matrix glasses to lower concentrations that are more typical of Hawaiian magmas. Concentrations of other incompatible elements (e.g., K (sub 2) O, P (sub 2) O (sub 5) , and Be) in matrix glasses and glass inclusions are uncorrelated with their H (sub 2) O, Cl, and B contents. Glass inclusions show considerable scatter in major element compositions compared to matrix glasses, but except for H (sub 2) O, Cl, and B, the average glass inclusion composition corresponds well to the matrix glass compositions. We propose that the glass inclusions represent compositionally diverse liquids present within the magmatic plumbing system at Loihi that were mixed and homogenized to produce the liquid that quenched to the matrix glass on eruption. This range of liquid compositions present at depth was trapped by crystallizing olivine prior to blending and homogenizing and therefore preserves a compositional diversity not present in erupted whole rocks. The high H (sub 2) O, Cl, and B contents of matrix glasses and some glass inclusions, and the range of H (sub 2) O, Cl, and B concentrations in glass inclusions, are best explained by variable extents of assimilation by Loihi magmas of H (sub 2) O-Cl-B-rich, seawater-derived components prior to eruption. The required assimilants range from material similar in composition to seawater to materials with Cl/H (sub 2) O and B/H (sub 2) O ratios much higher than seawater. Our preferred explanation (similar to that suggested for MORB by Michael and Schilling, 1989) [Michael, P. J., Schilling, J. G., 1989. Chlorine in mid-ocean ridge magmas: Evidence for assimilation of seawater-influenced components. Geochim. Cosmochim. Acta, 53, p. 3131-3143.] is that most of the assimilated materials were brines (or rocks containing brines in inclusions or along grain boundaries) enriched in Cl by high temperature phase separation of seawater in sub-sea-floor hydrothermal circulation systems. Addition of approximately 1.0 wt.% of a 15 wt.% NaCl brine can explain the H (sub 2) O and Cl contents of the matrix glasses. Addition of altered basalt cannot readily account for the Cl and H (sub 2) O contents of matrix glasses and glass inclusions, but may be required to account for their elevated B contents. The enrichment in Cl and contamination with atmospheric noble gases observed in other samples from Loihi could also result from assimilation of Cl-enriched, seawater-derived components. JF - Chemical Geology AU - Kent, Adam J R AU - Norman, Marc D AU - Hutcheon, Ian D AU - Stolper, Edward M Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 299 EP - 319 PB - Elsevier, Amsterdam VL - 156 IS - 1-4 SN - 0009-2541, 0009-2541 KW - silicates KW - sea water KW - volcanic rocks KW - Northeast Pacific KW - glasses KW - igneous rocks KW - halogens KW - olivine group KW - Loihi Seamount KW - assimilation KW - major elements KW - volatile elements KW - olivine KW - inclusions KW - orthosilicates KW - geochemistry KW - water KW - East Pacific KW - chlorine KW - alkaline earth metals KW - matrix KW - pillow lava KW - seamounts KW - nesosilicates KW - volcanic glass KW - North Pacific KW - lava KW - metals KW - magmas KW - Pacific Ocean KW - submarine volcanoes KW - volcanoes KW - boron KW - phenocrysts KW - dredged samples KW - beryllium 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/52491261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Assimilation+of+seawater-derived+components+in+an+oceanic+volcano%3B+evidence+from+matrix+glasses+and+glass+inclusions+from+Loihi+Seamount%2C+Hawaii&rft.au=Kent%2C+Adam+J+R%3BNorman%2C+Marc+D%3BHutcheon%2C+Ian+D%3BStolper%2C+Edward+M&rft.aulast=Kent&rft.aufirst=Adam+J&rft.date=1999-04-01&rft.volume=156&rft.issue=1-4&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2FS0009-2541%2898%2900188-0 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1999-01-01 N1 - Number of references - 58 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Calif. Inst. Technol., Div. Geol. and Planet. Sci., Contrib. No. 5706; GEMOC Contrib. No. 136 N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - alkaline earth metals; assimilation; beryllium; boron; chlorine; dredged samples; East Pacific; geochemistry; glasses; halogens; igneous rocks; inclusions; lava; Loihi Seamount; magmas; major elements; matrix; metals; nesosilicates; North Pacific; Northeast Pacific; olivine; olivine group; orthosilicates; Pacific Ocean; phenocrysts; pillow lava; sea water; seamounts; silicates; submarine volcanoes; volatile elements; volcanic glass; volcanic rocks; volcanoes; water DO - http://dx.doi.org/10.1016/S0009-2541(98)00188-0 ER - TY - JOUR T1 - Nuclear fusion from explosions of femtosecond laser-heated deuterium dusters AN - 52490335; 1999-032786 JF - Nature (London) AU - Ditmire, T AU - Zweiback, J AU - Yanovsky, V P AU - Cowan, T E AU - Hays, G AU - Wharton, K B Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 489 EP - 492 PB - Macmillan Journals, London VL - 398 IS - 6727 SN - 0028-0836, 0028-0836 KW - laser methods KW - isotopes KW - explosions KW - ions KW - stable isotopes KW - temperature KW - atomic clusters KW - radioactive isotopes KW - photoionization KW - neutrons KW - hydrogen KW - fusion KW - deuterium KW - nuclear explosions KW - geochemistry KW - energy KW - electrons KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52490335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Nuclear+fusion+from+explosions+of+femtosecond+laser-heated+deuterium+dusters&rft.au=Ditmire%2C+T%3BZweiback%2C+J%3BYanovsky%2C+V+P%3BCowan%2C+T+E%3BHays%2C+G%3BWharton%2C+K+B&rft.aulast=Ditmire&rft.aufirst=T&rft.date=1999-04-01&rft.volume=398&rft.issue=6727&rft.spage=489&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/ L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 28 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - atomic clusters; deuterium; electrons; energy; explosions; fusion; geochemistry; hydrogen; ions; isotopes; laser methods; neutrons; nuclear explosions; photoionization; radioactive isotopes; stable isotopes; temperature ER - TY - JOUR T1 - Why most "dry" rocks should cool "wet" AN - 52482591; 1999-037007 AB - A new consideration of oxygen isotope resetting among metamorphic minerals is made accounting for (1) the possibility of f (sub H2O) -buffering by typical mineral assemblages during cooling and (2) experimental data that show that high f (sub H2O) correlates with high diffusion rates. Isotope closure temperatures in buffered rocks are intermediate between simpler predictions based on "wet" (1 kbar hydrothermal) and "dry" (P<1 atm, H (sub 2) O-absent) diffusion experiments, but are typically within approximately 50 degrees C of closure temperature estimates that use "wet" diffusion rates, yet 200-300 degrees C different from "dry." Even though many rocks may be "dry" in that they lack a hydrous fluid that is physically present during cooling, buffering of f (sub H2O) results in quasi-"wet" diffusion rates. Re-evaluation of published data shows that most rocks indeed exhibit substantial isotope resetting that is best matched by predictions of f (sub H2O) -buffering models. Wet- and dry-diffusion models somewhat overestimate and greatly underestimate resetting respectively. Previous interpretations invoking "dry" diffusion rates may derive from erroneous fractionation factors or faster cooling rates than assumed. The rare preservation of isotope closure temperatures that are higher than predicted may reflect faster than expected cooling rates or extraordinarily low f (sub H2O) in conjunction with anhydrous assemblages. JF - American Mineralogist AU - Kohn, Matthew J Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 570 EP - 580 PB - Mineralogical Society of America, Washington, DC VL - 84 IS - 4 SN - 0003-004X, 0003-004X KW - metaigneous rocks KW - granulite facies KW - oxygen KW - isotopes KW - isotope ratios KW - metabasite KW - O-18/O-16 KW - metamorphism KW - stable isotopes KW - fugacity KW - P-T-t paths KW - metamorphic rocks KW - amphibolite facies KW - cooling KW - thermodynamic properties KW - facies 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/52482591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Why+most+%22dry%22+rocks+should+cool+%22wet%22&rft.au=Kohn%2C+Matthew+J&rft.aulast=Kohn&rft.aufirst=Matthew&rft.date=1999-04-01&rft.volume=84&rft.issue=4&rft.spage=570&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 77 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - amphibolite facies; chemical fractionation; cooling; facies; fugacity; granulite facies; isotope ratios; isotopes; metabasite; metaigneous rocks; metamorphic rocks; metamorphism; O-18/O-16; oxygen; P-T-t paths; stable isotopes; thermodynamic properties ER - TY - JOUR T1 - Observations in support of Rg scattering as source for explosion S waves; regional and local recordings of the 1997 Kazakhstan depth of burial experiment AN - 52472859; 1999-042623 AB - In August and September of 1997, three 25-ton chemical explosions were detonated at nominal depths of 550, 300, and 50 m in boreholes at the former Soviet test site at Balapan, Kazakhstan. One objective of this experiment was to evaluate the effect of differing source depth on the regional wave field. Analysis of regional seismic phases lead to the observation that regional P/S wave amplitude ratios in the 1- to 5-Hz band increase as a function of source depth. However, at frequencies greater than about 5 Hz, the relative amplitudes of P and S waves remain approximately constant for the differing depth shots. Similarly, regional coda spectra are amplified in the 1- to 5-Hz band for the shallow shots. At local distances, Rg is the dominant seismic phase, with peak amplitudes in the 0.7- to 5-Hz range, and Rg is strongest for the shallower shots. Within the short distance spanned by the local stations (<20 km), Rg is rapidly attenuated, and the attenuation is accompanied by a significant shift in peak amplitude toward lower frequency. At regional distances, Rg is below the noise level. The coincident frequency band in which local Rg rapidly loses energy and regional S phases are amplified points toward Rg scattering as the dominant mechanism causing the discrepancies between P/S amplitude ratios in this study. These observations are particularly relevant to the understanding of physical processes affecting regional P/S discriminants and may lead to improvements in discriminant methods. JF - Bulletin of the Seismological Society of America AU - Myers, Stephen C AU - Walter, William R AU - Mayeda, Kevin AU - Glenn, Lewis Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 544 EP - 549 PB - Seismological Society of America, Berkeley, CA VL - 89 IS - 2 SN - 0037-1106, 0037-1106 KW - body waves KW - guided waves KW - explosions KW - chemical explosions KW - elastic waves KW - short-period waves KW - frequency KW - Balapan Kazakhstan KW - seismic sources KW - Rayleigh waves KW - depth KW - Central Asia KW - observations KW - surface waves KW - Commonwealth of Independent States KW - Rg-waves KW - Kazakhstan KW - seismic waves KW - Asia KW - S-waves KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52472859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Observations+in+support+of+Rg+scattering+as+source+for+explosion+S+waves%3B+regional+and+local+recordings+of+the+1997+Kazakhstan+depth+of+burial+experiment&rft.au=Myers%2C+Stephen+C%3BWalter%2C+William+R%3BMayeda%2C+Kevin%3BGlenn%2C+Lewis&rft.aulast=Myers&rft.aufirst=Stephen&rft.date=1999-04-01&rft.volume=89&rft.issue=2&rft.spage=544&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 - 16 N1 - PubXState - CA N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - amplitude; Asia; Balapan Kazakhstan; body waves; Central Asia; chemical explosions; Commonwealth of Independent States; depth; elastic waves; explosions; frequency; guided waves; Kazakhstan; observations; Rayleigh waves; Rg-waves; S-waves; seismic sources; seismic waves; short-period waves; surface waves ER - TY - JOUR T1 - A comparison of methodologies for representing path effects on regional P/S discriminants AN - 52470071; 1999-042612 AB - Short-period regional P/S amplitude ratios hold much promise for discriminating low-magnitude explosions from earthquakes in a Comprehensive Test Ban Treaty (CTBT) monitoring context. However, propagation path effects lead to variability in regional-phase amplitudes that, if not accounted for, can reduce or eliminate the ability of P/S ratios to identify the seismic source. Here we compare four different methodologies that account for the effect of heterogeneous structure on P/S amplitude variance: (1) distance corrections, (2) path-specific crustal wave-guide parameter regressions, (3) cap averaging (running mean smoothing), and (4) kriging. The predictability of each method is established by cross-validation (leave-one-out) analysis. We apply these techniques to Pn/Lg, Pg/Lg, and Pn/Sn observations in three frequency bands from 0.75 to 6.0 Hz at station ABKT (Alibek, Turkmenistan), site of a primary station of the International Monitoring System (IMS). Paths to ABKT sample diverse crustal structures (e.g., various topographic, sedimentary, and geologic structures), leading to great variability in the observed P/S amplitude ratios. For these data to be useful for isolating source characteristics, the scatter needs to be reduced by accounting for the path effects, and the resulting distribution needs to be Gaussian for most existing spatial interpolation and discrimination strategies to have valid application. Each method reduces the scatter of the P/S amplitude measurements with varying degrees of success; however, kriging has the distinct advantages of providing the greatest variance reduction and a continuous correction surface with an estimate of the model uncertainty. The largest reductions in scatter are found for the lowest frequency P/S ratios (<3.0 Hz). JF - Bulletin of the Seismological Society of America AU - Rodgers, Arthur J AU - Walter, William R AU - Schultz, Craig A AU - Myers, Stephen C AU - Lay, Thorne Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 394 EP - 408 PB - Seismological Society of America, Berkeley, CA VL - 89 IS - 2 SN - 0037-1106, 0037-1106 KW - body waves KW - monitoring KW - guided waves KW - explosions KW - Pn-waves KW - statistical analysis KW - Lg-waves KW - kriging KW - elastic waves KW - waveforms KW - equations KW - seismic sources KW - Sn-waves KW - attenuation KW - surface waves KW - multivariate analysis KW - seismic waves KW - corrections KW - nuclear explosions 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/52470071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=A+comparison+of+methodologies+for+representing+path+effects+on+regional+P%2FS+discriminants&rft.au=Rodgers%2C+Arthur+J%3BWalter%2C+William+R%3BSchultz%2C+Craig+A%3BMyers%2C+Stephen+C%3BLay%2C+Thorne&rft.aulast=Rodgers&rft.aufirst=Arthur&rft.date=1999-04-01&rft.volume=89&rft.issue=2&rft.spage=394&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 - 37 N1 - PubXState - CA N1 - Document feature - illus. incl. 3 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - amplitude; attenuation; body waves; Comprehensive Test Ban Treaty; corrections; earthquakes; elastic waves; equations; explosions; guided waves; kriging; Lg-waves; monitoring; multivariate analysis; nuclear explosions; Pn-waves; seismic sources; seismic waves; Sn-waves; statistical analysis; surface waves; waveforms ER - TY - JOUR T1 - Oxygen and carbon isotope study of natural and synthetic malachite AN - 52463612; 1999-043310 AB - Malachite, a common secondary mineral in the zone of oxidation, has recently become a major source of Cu due to the development of solution extraction-electrowinning (SXEW) technologies. Stable isotope characterization can contribute needed information on the formative mechanisms of malachite by establishing the source materials and temperature of formation. The equilibrium (super 18) O and (super 13) C isotope fractionations between malachite (super *) and water and between CO (sub 2) gas and malachite were determined by slow precipitation experiments over the temperature range 0 to 50 degrees C: 1000 ln alpha Oxygen mal (super AK) -water = 2.66 (10 (super 6) /T (super 2) ) + 2.66 and 1000 ln alpha Carbon CO (sub 2) -mal = -1.85 (10 (super 6) /T (super 2) ) + 10.51 where temperature (T) is in Kelvin, and where mal (super *) represents the acid liberated CO (sub 2) corrected as total calcite oxygen. This internally consistent method renders the acid correction unnecessary for application of the mal (super *) -water thermometer. Natural malachites have delta (super 18) O and delta (super 13) C values that are similar to those for caliches and speleothems. This similarity supports the field evidence of malachite forming caliche-like crusts and speleothem-like structures, and bears upon the conditions of its genesis. The delta (super 18) O values of +18 to +31 per mil standard mean ocean water (SMOW) for natural malachites are dominantly controlled by the delta (super 18) O values of ambient meteoric waters and the surface temperatures. Most malachites have delta (super 13) C values between 0 and -21 per mil Peedee belemnite (PDB) reflecting a combination of vegetation-respired soil CO (sub 2) and carbonate rock-derived carbon. A strong correlation between the delta (super 18) O values of malachites and local modern meteoric waters suggests that malachites are relatively young, or alternatively, that they are easily exchanged. Using the mal (super *) -water thermometer, formation temperatures of 5 degrees to 35 degrees C are estimated. These temperatures correlate reasonably well with the modern local air temperatures. However, samples from massive sulfide deposits such as Broken Hill, Australia, have estimated temperatures as high as 58 degrees C, probably reflecting the heat generated by sulfide oxidation during weathering. JF - Economic Geology and the Bulletin of the Society of Economic Geologists AU - Melchiorre, Erik B AU - Criss, Robert E AU - Rose, Timothy P Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 245 EP - 259 PB - Economic Geology Publishing Company, Lancaster, PA VL - 94 IS - 2 SN - 0361-0128, 0361-0128 KW - United States KW - isotope fractionation KW - experimental studies KW - geologic thermometry KW - oxygen KW - isotopes KW - isotope ratios KW - oxidation KW - natural materials KW - C-13/C-12 KW - O-18/O-16 KW - stable isotopes KW - temperature KW - Western U.S. KW - precipitation KW - carbon KW - metal ores KW - copper ores KW - malachite KW - carbonates KW - synthetic materials 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/52463612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Economic+Geology+and+the+Bulletin+of+the+Society+of+Economic+Geologists&rft.atitle=Oxygen+and+carbon+isotope+study+of+natural+and+synthetic+malachite&rft.au=Melchiorre%2C+Erik+B%3BCriss%2C+Robert+E%3BRose%2C+Timothy+P&rft.aulast=Melchiorre&rft.aufirst=Erik&rft.date=1999-04-01&rft.volume=94&rft.issue=2&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Economic+Geology+and+the+Bulletin+of+the+Society+of+Economic+Geologists&rft.issn=03610128&rft_id=info:doi/10.2113%2Fgsecongeo.94.2.245 L2 - http://www.segweb.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 62 N1 - PubXState - PA N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - ECGLAL N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; carbonates; copper ores; experimental studies; geologic thermometry; isotope fractionation; isotope ratios; isotopes; malachite; metal ores; natural materials; O-18/O-16; oxidation; oxygen; precipitation; stable isotopes; synthetic materials; temperature; United States; Western U.S. DO - http://dx.doi.org/10.2113/gsecongeo.94.2.245 ER - TY - JOUR T1 - Evidence for mixing of shallow and deep sources in overpressured saline fluids AN - 52454799; 1999-054783 AB - Deformation along the eastern California Coast Ranges forms wedge structures having shallow westward-vergent backthrusts rooted to deep eastward-vergent blind thrusts. Overpressured fluids commonly emerge from high elevation springs in these areas, having a typical basinal fluid character. For example, in the Rumsey Hills, springs are saline (up to 2 wt. percent NaCl) and have isotopically enriched delta (super 18) O values (-7.5 to +5.0 per mil; Davisson et al., 1994). delta (super 11) B decreases from +39.5 to +21.5 per mil as boron concentrations increase from 4 to 200 ppm, consistent with boron desorption from clays at approximately 100 degrees C. Similar temperatures calculated from chemical geothermometers suggest fluid sources of approximately 4km . (super 87) Sr/ (super 86) Sr ratios of dissolved Sr decrease from 0.70702 to 0.70585 with increasing Ca/Na ratios, consistent with active plagioclase albitization at similar depths. However, two (super 3) He/ (super 4) He ratios (Ra = 0.2 and 1.9) measured in natural gases effervescing from springs indicate significant mantle contribution and possible fluid sources >>4 km. The saline spring discharge can be related to volume strain, such as pore volume dewatering in undeformed sediments within the wedge. This type of fluid expulsion has been shown in similar areas to occur aseismically within fault-bounded blocks (Melchiorre et al., 1999). However, at depth sediments are likely already dewatered and fluid transport probably occurs along faults rooted to the mantle. Additional evidence is inferred from CO (sub 2) -rich saline waters emerging as springs from Great Valley rocks approximately 40 km north of Mt. Diablo. The delta (super 13) C of the CO (sub 2) (-5.0+ or -1.0 per mil) in equilibrium with high dissolved inorganic carbon (up to 8300 ppm) is similar to known mantle values. JF - AAPG Bulletin AU - Davisson, M Lee AU - Criss, Robert E AU - Rose, Timothy P AU - Anonymous Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 685 PB - American Association of Petroleum Geologists, Tulsa, OK VL - 83 IS - 4 SN - 0149-1423, 0149-1423 KW - United States KW - overpressure KW - oxygen KW - isotopes KW - mantle KW - stable isotopes KW - temperature KW - California KW - transport KW - noble gases KW - mixing KW - helium KW - eastern California KW - faults KW - alkaline earth metals KW - isotope ratios KW - Rumsey Hills KW - O-18/O-16 KW - deformation KW - tectonic wedges KW - Central Valley KW - Sr-87/Sr-86 KW - Coast Ranges KW - thrust faults KW - metals KW - B-11/B-10 KW - boron KW - He-4/He-3 KW - strontium KW - 16:Structural geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52454799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AAPG+Bulletin&rft.atitle=Evidence+for+mixing+of+shallow+and+deep+sources+in+overpressured+saline+fluids&rft.au=Davisson%2C+M+Lee%3BCriss%2C+Robert+E%3BRose%2C+Timothy+P%3BAnonymous&rft.aulast=Davisson&rft.aufirst=M&rft.date=1999-04-01&rft.volume=83&rft.issue=4&rft.spage=685&rft.isbn=&rft.btitle=&rft.title=AAPG+Bulletin&rft.issn=01491423&rft_id=info:doi/ L2 - http://aapgbull.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - 1999 AAPG Pacific Section meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 1999-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - AABUD2 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; B-11/B-10; boron; California; Central Valley; Coast Ranges; deformation; eastern California; faults; He-4/He-3; helium; isotope ratios; isotopes; mantle; metals; mixing; noble gases; O-18/O-16; overpressure; oxygen; Rumsey Hills; Sr-87/Sr-86; stable isotopes; strontium; tectonic wedges; temperature; thrust faults; transport; United States ER - TY - JOUR T1 - Fluids, faults and tectonic evolution of the California Coast Ranges AN - 52454768; 1999-054782 AB - Field, geochemical and production data across the central California Coast Ranges document intimate relationships between tectonically-overpressured formation fluids and geologic structures, uplift, and seismicity. The overpressured fluids emerge at high elevations (to 1500') as geochemically distinctive, high- (super 18) O springs and have resulted in numerous blowouts. From west to east, fluid chemistry grades from CO (sub 2) -rich, travertine-depositing springs and mud volcanoes, to chloride-rich springs that deposit halite, and finally to overpressured, chloride-rich, subsurface fluids commonly associated with oil or gas. Fluid chemistry parallels the change in the predominant tectonic character from strike-slip dominated in the western Coast Ranges to the fold and thrust structures of the eastern Coast Ranges, and ultimately to the Sacramento Valley. JF - AAPG Bulletin AU - Criss, Robert E AU - Davisson, M Lee AU - Anonymous Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 685 PB - American Association of Petroleum Geologists, Tulsa, OK VL - 83 IS - 4 SN - 0149-1423, 0149-1423 KW - United States KW - overpressure KW - oxygen KW - isotopes KW - natural gas KW - Sacramento Valley KW - uplifts KW - petroleum KW - block structures KW - strike-slip faults KW - salinity KW - production KW - stable isotopes KW - carbon dioxide KW - California KW - neotectonics KW - seismicity KW - folds KW - springs KW - tectonics KW - geochemistry KW - faults KW - systems KW - failures KW - isotope ratios KW - O-18/O-16 KW - deformation KW - Coast Ranges KW - thrust faults KW - structural traps KW - traps KW - fold and thrust belts KW - blowouts KW - 29A:Economic geology, geology of energy sources KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52454768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AAPG+Bulletin&rft.atitle=Fluids%2C+faults+and+tectonic+evolution+of+the+California+Coast+Ranges&rft.au=Criss%2C+Robert+E%3BDavisson%2C+M+Lee%3BAnonymous&rft.aulast=Criss&rft.aufirst=Robert&rft.date=1999-04-01&rft.volume=83&rft.issue=4&rft.spage=685&rft.isbn=&rft.btitle=&rft.title=AAPG+Bulletin&rft.issn=01491423&rft_id=info:doi/ L2 - http://aapgbull.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - 1999 AAPG Pacific Section meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 1999-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - AABUD2 N1 - SubjectsTermNotLitGenreText - block structures; blowouts; California; carbon dioxide; Coast Ranges; deformation; failures; faults; fold and thrust belts; folds; geochemistry; isotope ratios; isotopes; natural gas; neotectonics; O-18/O-16; overpressure; oxygen; petroleum; production; Sacramento Valley; salinity; seismicity; springs; stable isotopes; strike-slip faults; structural traps; systems; tectonics; thrust faults; traps; United States; uplifts ER - TY - JOUR T1 - Similarity of gases in the Cape Mendocino-Eel River basin area, offshore and onshore northwestern California AN - 52454571; 1999-054823 AB - The Eel River basin and adjacent areas underlain by melange of the Franciscan Complex of northwestern California have seeps and minor commercial production of natural gas, condensate, and light crude oil. Hydrocarbon gas geochemistry provides evidence that gases from onshore gas seeps and wells in Franciscan melanges as far south as Briceland are related to one another and to offshore gas seeps in the Eel River basin west of Eureka. Ten onshore gas occurrences and two submarine seeps (at water depths of 520 m and 41 m) were sampled. Each onshore occurrence produces wet gas. The onshore occurrences are clearly related by similar hydrocarbon gas composition and, in most cases, by carbon isotopic composition of the hydrocarbon gases methane through butane. Methane carbon isotopic compositions ranged from -53 to -31 per mil. JF - AAPG Bulletin AU - Lorenson, Thomas D AU - Magoon, L B AU - Kvenvolden, Keith A AU - Davisson, M Lee AU - Orange, Daniel L AU - Brewer, P G AU - Martin, J B AU - Anonymous Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 694 EP - 695 PB - American Association of Petroleum Geologists, Tulsa, OK VL - 83 IS - 4 SN - 0149-1423, 0149-1423 KW - United States KW - offshore KW - isotopes KW - natural gas KW - source rocks KW - aliphatic hydrocarbons KW - petroleum KW - onshore KW - stable isotopes KW - Cape Mendocino KW - Cenozoic KW - California KW - oil wells KW - butane KW - carbon KW - crude oil KW - condensates KW - Northern California KW - geochemistry KW - Franciscan Complex KW - Eel River basin KW - gas seeps KW - methane KW - northwestern California KW - isotope ratios KW - C-13/C-12 KW - Wildcat Group KW - alkanes KW - Miocene KW - Mesozoic KW - gases KW - Tertiary KW - organic compounds KW - Humboldt County California KW - Neogene KW - hydrocarbons KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52454571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AAPG+Bulletin&rft.atitle=Similarity+of+gases+in+the+Cape+Mendocino-Eel+River+basin+area%2C+offshore+and+onshore+northwestern+California&rft.au=Lorenson%2C+Thomas+D%3BMagoon%2C+L+B%3BKvenvolden%2C+Keith+A%3BDavisson%2C+M+Lee%3BOrange%2C+Daniel+L%3BBrewer%2C+P+G%3BMartin%2C+J+B%3BAnonymous&rft.aulast=Lorenson&rft.aufirst=Thomas&rft.date=1999-04-01&rft.volume=83&rft.issue=4&rft.spage=694&rft.isbn=&rft.btitle=&rft.title=AAPG+Bulletin&rft.issn=01491423&rft_id=info:doi/ L2 - http://aapgbull.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - 1999 AAPG Pacific Section meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 1999-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - AABUD2 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; butane; C-13/C-12; California; Cape Mendocino; carbon; Cenozoic; condensates; crude oil; Eel River basin; Franciscan Complex; gas seeps; gases; geochemistry; Humboldt County California; hydrocarbons; isotope ratios; isotopes; Mesozoic; methane; Miocene; natural gas; Neogene; Northern California; northwestern California; offshore; oil wells; onshore; organic compounds; petroleum; source rocks; stable isotopes; Tertiary; United States; Wildcat Group ER - TY - JOUR T1 - The geology and geochemistry of oil and gas seeps in California indicate up to tens of kilometers of petroleum migration AN - 52451340; 1999-054827 AB - Over 500 oil and gas seeps have been mapped in California along the coast and inland. Numerous seeps occur in the Cape Mendocino-Eel River basin areas, Point Arena, Point Reyes, San Mateo-Santa Cruz-Santa Clara counties, western San Joaquin Valley, the coastal and mountainous areas of Santa Barbara-Ventura counties, and in the Los Angeles basin (the Rancho La Brea Tar Pit being a famous example). Many natural gas seeps occur with active springs throughout the Coast Ranges. These oil and gas seeps generally occur in the western and southern portion of California where tectonic activity has uplifted petroleum carrier beds and reservoir rocks which are then breached by erosion. On the basis of available thermal maturity data, these oil and gas seeps generally occur in thermally immature host rock. JF - AAPG Bulletin AU - Magoon, L B AU - Lorenson, Thomas D AU - McLaughlin, R J AU - Stanley, R G AU - Valin, Z C AU - Lillis, Paul G AU - Hodgson, S F AU - Davisson, M Lee AU - Underwood, M B AU - Anonymous Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 695 EP - 696 PB - American Association of Petroleum Geologists, Tulsa, OK VL - 83 IS - 4 SN - 0149-1423, 0149-1423 KW - United States KW - maturity KW - isotopes KW - Cretaceous KW - uplifts KW - source rocks KW - petroleum KW - stable isotopes KW - temperature KW - reservoir rocks KW - Point Arena KW - Cape Mendocino KW - Cenozoic KW - California KW - Santa Clara County California KW - carbon KW - thermal maturity KW - tectonics KW - Rancho La Brea KW - geochemistry KW - Santa Cruz County California KW - Eel River basin KW - migration KW - Los Angeles County California KW - gas seeps KW - Ventura County California KW - San Joaquin Valley KW - Eocene KW - isotope ratios KW - C-13/C-12 KW - Paleogene KW - Miocene KW - Mesozoic KW - oil seeps KW - genesis KW - Tertiary KW - Santa Barbara County California KW - Coast Ranges KW - Southern California KW - Humboldt County California KW - Neogene KW - Los Angeles Basin KW - San Mateo County California KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52451340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AAPG+Bulletin&rft.atitle=The+geology+and+geochemistry+of+oil+and+gas+seeps+in+California+indicate+up+to+tens+of+kilometers+of+petroleum+migration&rft.au=Magoon%2C+L+B%3BLorenson%2C+Thomas+D%3BMcLaughlin%2C+R+J%3BStanley%2C+R+G%3BValin%2C+Z+C%3BLillis%2C+Paul+G%3BHodgson%2C+S+F%3BDavisson%2C+M+Lee%3BUnderwood%2C+M+B%3BAnonymous&rft.aulast=Magoon&rft.aufirst=L&rft.date=1999-04-01&rft.volume=83&rft.issue=4&rft.spage=695&rft.isbn=&rft.btitle=&rft.title=AAPG+Bulletin&rft.issn=01491423&rft_id=info:doi/ L2 - http://aapgbull.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - 1999 AAPG Pacific Section meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 1999-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - AABUD2 N1 - SubjectsTermNotLitGenreText - C-13/C-12; California; Cape Mendocino; carbon; Cenozoic; Coast Ranges; Cretaceous; Eel River basin; Eocene; gas seeps; genesis; geochemistry; Humboldt County California; isotope ratios; isotopes; Los Angeles Basin; Los Angeles County California; maturity; Mesozoic; migration; Miocene; Neogene; oil seeps; Paleogene; petroleum; Point Arena; Rancho La Brea; reservoir rocks; San Joaquin Valley; San Mateo County California; Santa Barbara County California; Santa Clara County California; Santa Cruz County California; source rocks; Southern California; stable isotopes; tectonics; temperature; Tertiary; thermal maturity; United States; uplifts; Ventura County California ER - TY - JOUR T1 - Timing of millennial-scale IRD events in the Atlantic sector of the Southern Ocean during the past 67-kyrs AN - 51332739; 2001-065893 JF - Eos, Transactions, American Geophysical Union AU - Kanfoush, Sharon L AU - Hodell, David A AU - Charles, Christopher D AU - Guilderson, T P AU - Anonymous Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 198 EP - 199 PB - American Geophysical Union, Washington, DC VL - 80 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - Sargasso Sea KW - oxygen KW - isotopes KW - sea ice KW - Holocene KW - stable isotopes KW - cores KW - climate change KW - upper Pleistocene KW - Cenozoic KW - upper Weichselian KW - Greenland KW - debris KW - Weichselian KW - ice KW - sediments KW - Bermuda Rise KW - deuterium KW - Younger Dryas KW - volcanic ash KW - ice cores KW - Quaternary KW - isotope ratios KW - Arctic region KW - correlation KW - O-18/O-16 KW - ice sheets KW - ice rafting KW - Antarctic ice sheet KW - Antarctica KW - Southeast Atlantic KW - hydrogen KW - Pleistocene KW - South Atlantic KW - seasonal variations KW - glacial geology KW - Vostok Station KW - North Atlantic KW - Atlantic Ocean KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51332739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Timing+of+millennial-scale+IRD+events+in+the+Atlantic+sector+of+the+Southern+Ocean+during+the+past+67-kyrs&rft.au=Kanfoush%2C+Sharon+L%3BHodell%2C+David+A%3BCharles%2C+Christopher+D%3BGuilderson%2C+T+P%3BAnonymous&rft.aulast=Kanfoush&rft.aufirst=Sharon&rft.date=1999-04-01&rft.volume=80&rft.issue=17%2C+Suppl.&rft.spage=198&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 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Antarctic ice sheet; Antarctica; Arctic region; Atlantic Ocean; Bermuda Rise; Cenozoic; climate change; cores; correlation; debris; deuterium; glacial geology; Greenland; Holocene; hydrogen; ice; ice cores; ice rafting; ice sheets; isotope ratios; isotopes; North Atlantic; O-18/O-16; oxygen; Pleistocene; Quaternary; Sargasso Sea; sea ice; seasonal variations; sediments; South Atlantic; Southeast Atlantic; stable isotopes; upper Pleistocene; upper Weichselian; volcanic ash; Vostok Station; Weichselian; Younger Dryas ER - TY - JOUR T1 - Improving regional seismic event location through calibration of the International Monitoring System AN - 51208670; 2000-056511 JF - Seismological Research Letters AU - Schultz, Craig A AU - Myers, Stephen C AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 213 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - explosions KW - magnitude KW - elastic waves KW - calibration KW - seismic sources KW - teleseismic signals KW - International Monitoring System KW - traveltime KW - seismic networks KW - nuclear explosions KW - earthquakes KW - accuracy KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51208670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Improving+regional+seismic+event+location+through+calibration+of+the+International+Monitoring+System&rft.au=Schultz%2C+Craig+A%3BMyers%2C+Stephen+C%3BMalone%2C+Steve+D&rft.aulast=Schultz&rft.aufirst=Craig&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=213&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; calibration; Comprehensive Test Ban Treaty; earthquakes; elastic waves; explosions; International Monitoring System; magnitude; nuclear explosions; seismic networks; seismic sources; teleseismic signals; traveltime ER - TY - JOUR T1 - Elastic coarse-graining of memory variables; memory efficient Q simulation for finite difference methods AN - 51205748; 2000-056727 JF - Seismological Research Letters AU - Bradley, C R AU - Day, S M AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 259 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - coarse-graining theory KW - three-dimensional models KW - finite difference analysis KW - elastic properties KW - statistical analysis KW - damage KW - elastic waves KW - teleseismic signals KW - ground motion KW - propagation KW - seismic waves KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51205748?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Elastic+coarse-graining+of+memory+variables%3B+memory+efficient+Q+simulation+for+finite+difference+methods&rft.au=Bradley%2C+C+R%3BDay%2C+S+M%3BMalone%2C+Steve+D&rft.aulast=Bradley&rft.aufirst=C&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=259&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 - coarse-graining theory; damage; earthquakes; elastic properties; elastic waves; finite difference analysis; ground motion; propagation; seismic waves; statistical analysis; teleseismic signals; three-dimensional models 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=Seismological+Research+Letters&rft.atitle=Amplitude+corrections+for+regional+seismic+discriminants&rft.au=Taylor%2C+S+R%3BVelasco%2C+A+A%3BHartse%2C+H+E%3BPhillips%2C+W+S%3BWalter%2C+William+R%3BRodgers%2C+Arthur+J%3BMalone%2C+Steve+D&rft.aulast=Taylor&rft.aufirst=S&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 - amplitude; Comprehensive Test Ban Treaty; corrections; discriminant analysis; earthquakes; elastic waves; frequency; identification; Q; seismic sources; statistical analysis ER - TY - JOUR T1 - Compressional and shear wave velocities of soils at low pressures; theoretical estimates, and comparison to laboratory and field data AN - 51205043; 2000-056573 JF - Seismological Research Letters AU - Berge, P A AU - Bonner, B P AU - Aracne-Ruddle, C AU - Trombino, C AU - Berryman, J G 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 - soils KW - P-waves KW - body waves KW - experimental studies KW - pressure KW - mechanical properties KW - elastic waves KW - low pressure KW - laboratory studies KW - ground motion KW - velocity KW - seismic waves KW - earthquakes KW - S-waves KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51205043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Compressional+and+shear+wave+velocities+of+soils+at+low+pressures%3B+theoretical+estimates%2C+and+comparison+to+laboratory+and+field+data&rft.au=Berge%2C+P+A%3BBonner%2C+B+P%3BAracne-Ruddle%2C+C%3BTrombino%2C+C%3BBerryman%2C+J+G%3BMalone%2C+Steve+D&rft.aulast=Berge&rft.aufirst=P&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 - body waves; earthquakes; elastic waves; experimental studies; ground motion; laboratory studies; low pressure; mechanical properties; P-waves; pressure; S-waves; seismic waves; soils; velocity ER - TY - JOUR T1 - Seismic discrimination of recent Indian and Pakistan nuclear tests with short-period amplitude ratios AN - 51203972; 2000-056507 JF - Seismological Research Letters AU - Rodgers, A W AU - Walter, William R AU - Sicherman, A AU - Hanley, William G 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 - upper mantle KW - Pakistan KW - explosions KW - magnitude KW - mantle KW - elastic waves KW - seismic sources KW - India KW - Indian Peninsula KW - identification KW - signal-to-noise ratio KW - corrections KW - algorithms KW - seismic networks KW - nuclear explosions KW - Asia KW - arrival time KW - earthquakes KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51203972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+discrimination+of+recent+Indian+and+Pakistan+nuclear+tests+with+short-period+amplitude+ratios&rft.au=Rodgers%2C+A+W%3BWalter%2C+William+R%3BSicherman%2C+A%3BHanley%2C+William+G%3BMalone%2C+Steve+D&rft.aulast=Rodgers&rft.aufirst=A&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 - algorithms; amplitude; arrival time; Asia; corrections; earthquakes; elastic waves; explosions; identification; India; Indian Peninsula; magnitude; mantle; nuclear explosions; Pakistan; seismic networks; seismic sources; seismograms; signal-to-noise ratio; upper mantle ER - TY - JOUR T1 - Statistical analysis of travel time residuals applied to the analysis of station quality AN - 51202795; 2000-056577 JF - Seismological Research Letters AU - Hanley, William G AU - Schultz, Craig A AU - Myers, Stephen C AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 227 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - traveltime residuals KW - traveltime KW - statistical analysis KW - focus KW - elastic waves KW - earthquakes KW - accuracy KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51202795?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Statistical+analysis+of+travel+time+residuals+applied+to+the+analysis+of+station+quality&rft.au=Hanley%2C+William+G%3BSchultz%2C+Craig+A%3BMyers%2C+Stephen+C%3BMalone%2C+Steve+D&rft.aulast=Hanley&rft.aufirst=William&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=227&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; Comprehensive Test Ban Treaty; earthquakes; elastic waves; focus; statistical analysis; traveltime; traveltime residuals ER - TY - JOUR T1 - Improvement in seismic location using non-stationary Bayesian kriging AN - 51202656; 2000-056575 JF - Seismological Research Letters AU - Myers, Stephen C AU - Schultz, Craig A AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 227 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - focal mechanism KW - monitoring KW - Bayesian analysis KW - statistical analysis KW - magnitude KW - kriging KW - Europe KW - elastic waves KW - Racha earthquake 1991 KW - teleseismic signals KW - Commonwealth of Independent States KW - traveltime KW - corrections KW - seismic networks KW - Caucasus KW - earthquakes KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51202656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Improvement+in+seismic+location+using+non-stationary+Bayesian+kriging&rft.au=Myers%2C+Stephen+C%3BSchultz%2C+Craig+A%3BMalone%2C+Steve+D&rft.aulast=Myers&rft.aufirst=Stephen&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=227&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 - Bayesian analysis; Caucasus; Commonwealth of Independent States; Comprehensive Test Ban Treaty; corrections; earthquakes; elastic waves; Europe; focal mechanism; kriging; magnitude; monitoring; Racha earthquake 1991; seismic networks; statistical analysis; teleseismic signals; traveltime ER - TY - JOUR T1 - Surface wave measurements across the Middle East and North Africa AN - 51202376; 2000-056581 JF - Seismological Research Letters AU - Pasyanos, Michael E AU - Walter, William R AU - Hazler, Shannon E 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 - tomography KW - seismograms KW - dispersivity KW - North Africa KW - guided waves KW - elastic waves KW - group velocity KW - conjugate gradient method KW - surface waves KW - Africa KW - seismic waves KW - seismic networks KW - Asia KW - portable arrays KW - Middle East KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51202376?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Surface+wave+measurements+across+the+Middle+East+and+North+Africa&rft.au=Pasyanos%2C+Michael+E%3BWalter%2C+William+R%3BHazler%2C+Shannon+E%3BMalone%2C+Steve+D&rft.aulast=Pasyanos&rft.aufirst=Michael&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 - Africa; Asia; conjugate gradient method; dispersivity; elastic waves; group velocity; guided waves; Middle East; North Africa; portable arrays; seismic networks; seismic waves; seismograms; surface waves; tomography ER - TY - JOUR T1 - Regional waveform modeling in southwestern Asia; tectonic release from the May 11, 1998 Indian nuclear tests AN - 51202031; 2000-056582 JF - Seismological Research Letters 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 - guided waves KW - explosions KW - elastic waves KW - waveforms KW - Rayleigh waves KW - signals KW - India KW - models KW - surface waves KW - Indian Peninsula KW - velocity structure KW - tectonics KW - seismic waves KW - nuclear explosions KW - Asia KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51202031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Regional+waveform+modeling+in+southwestern+Asia%3B+tectonic+release+from+the+May+11%2C+1998+Indian+nuclear+tests&rft.au=Walter%2C+William+R%3BRodgers%2C+Arthur+J%3BMalone%2C+Steve+D&rft.aulast=Walter&rft.aufirst=William&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; Comprehensive Test Ban Treaty; elastic waves; explosions; guided waves; India; Indian Peninsula; models; nuclear explosions; Rayleigh waves; seismic waves; signals; surface waves; tectonics; velocity structure; waveforms ER - TY - JOUR T1 - Investigating the effects of 3D structure on strong ground motions in Santa Clara Valley AN - 51201214; 2000-056525 JF - Seismological Research Letters AU - Stidham, C AU - Dreger, D AU - Romanowicz, Barbara AU - Larsen, S AU - Malone, Steve D Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 216 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 70 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - seismograms KW - upper mantle KW - Santa Clara Valley KW - three-dimensional models KW - magnitude KW - mantle KW - simulation KW - California KW - strong motion KW - San Francisco Bay KW - synthetic seismograms KW - ground motion KW - earthquakes KW - faults KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51201214?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Investigating+the+effects+of+3D+structure+on+strong+ground+motions+in+Santa+Clara+Valley&rft.au=Stidham%2C+C%3BDreger%2C+D%3BRomanowicz%2C+Barbara%3BLarsen%2C+S%3BMalone%2C+Steve+D&rft.aulast=Stidham&rft.aufirst=C&rft.date=1999-04-01&rft.volume=70&rft.issue=2&rft.spage=216&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 - California; crust; earthquakes; faults; ground motion; magnitude; mantle; San Francisco Bay; Santa Clara Valley; seismograms; simulation; strong motion; synthetic seismograms; three-dimensional models; United States; upper mantle ER - TY - JOUR T1 - Partial-melt electrical conductivity; influence of melt composition AN - 50156526; 2000-038604 AB - The electrical conductivity of a partial melt is influenced by many factors, including melt conductivity, crystalline conductivity, and melt fraction, each of which is influenced by temperature. We have performed measurements of bulk conductivity as a function of temperature of an Fo (sub 80) -basalt partial melt between 684 degrees and 1244 degrees C at controlled oxygen fugacity. Melt fraction and composition variations with temperature calculated using MELTS [Ghiorso and Sack, 1995] indicate that the effect on melt conductivity of changing melt composition is balanced by changes in temperature (T). Thus bulk conductivity as a function of T or melt fraction in this system can be calculated assuming a constant melt conductivity. The bulk conductivity is well modeled by simple parallel calculations, by the Hashin-Shtrikman upper bound, or by Archie's law (sigma (sub partial) (sub melt) /sigma (sub melt) = C (sub 1) X (sub m) (super n) ). We estimate apparent values of the Archie's law parameters between 1150 degrees and 1244 degrees C as C (sub 1) = 0.73 + or - 0.02 and n = 0.98 + or -0.01. Estimates of the permeability of the system are obtained by using an electrical conductivity-critical scale length relationship and range from approximately 10 (super -14) to 10 (super -18) m (super 2) , comparing favorably with previously published values. Copyright 1999 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Roberts, Jeffery J AU - Tyburczy, James A Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 7055 EP - 7065 PB - American Geophysical Union, Washington, DC VL - 104 IS - B4 SN - 0148-0227, 0148-0227 KW - tholeiitic basalt KW - electrical properties KW - electrical conductivity KW - volcanic rocks KW - oxygen KW - igneous rocks KW - partial melting KW - geophysical methods KW - melts KW - fugacity KW - temperature KW - mineral composition KW - mixing KW - basalts KW - electromagnetic methods KW - permeability KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50156526?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Partial-melt+electrical+conductivity%3B+influence+of+melt+composition&rft.au=Roberts%2C+Jeffery+J%3BTyburczy%2C+James+A&rft.aulast=Roberts&rft.aufirst=Jeffery&rft.date=1999-04-01&rft.volume=104&rft.issue=B4&rft.spage=7055&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F1998JB900111 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 - 48 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - basalts; electrical conductivity; electrical properties; electromagnetic methods; fugacity; geophysical methods; igneous rocks; melts; mineral composition; mixing; oxygen; partial melting; permeability; temperature; tholeiitic basalt; volcanic rocks DO - http://dx.doi.org/10.1029/1998JB900111 ER - TY - JOUR T1 - A Numerical Simulation of Groundwater Flow and Contaminant Transport on the CRAY T3D and C90 Supercomputers AN - 21066571; 11106710 AB - Numerical simulations of groundwater flow and chemical transport through three-dimensional heterogeneous porous media are described. The authors employ two CRAY supercomputers for different parts of the decoupled calculation: the flow field is computed on the T3D massively parallel computer, and the contaminant migration is simulated on the C90 vector supercomputer. The authors compare simulation results for subsurface models based on homogeneous and heterogeneous conceptual models and find that the heterogeneities have a profound impact on the character of contaminant migration. JF - International Journal of High Performance Computing Applications AU - Ashby, S F AU - Bosl, W J AU - Falgout, R D AU - Smith, S G AU - Tompson, AFB AU - Williams, T J AD - Lawrence Livermore National Laboratory, California, U.S.A Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 80 EP - 93 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 13 IS - 1 SN - 1094-3420, 1094-3420 KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Migration KW - Pollutants KW - Heterogeneity KW - migration KW - Porous Media KW - Computers KW - Chemical transport KW - Simulation KW - Model Studies KW - Performance Evaluation KW - Groundwater KW - Contaminants KW - Groundwater Movement KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21066571?accountid=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=International+Journal+of+High+Performance+Computing+Applications&rft.atitle=A+Numerical+Simulation+of+Groundwater+Flow+and+Contaminant+Transport+on+the+CRAY+T3D+and+C90+Supercomputers&rft.au=Ashby%2C+S+F%3BBosl%2C+W+J%3BFalgout%2C+R+D%3BSmith%2C+S+G%3BTompson%2C+AFB%3BWilliams%2C+T+J&rft.aulast=Ashby&rft.aufirst=S&rft.date=1999-04-01&rft.volume=13&rft.issue=1&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+High+Performance+Computing+Applications&rft.issn=10943420&rft_id=info:doi/10.1177%2F109434209901300105 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - migration; Chemical transport; Simulation; Contaminants; Groundwater; Performance Evaluation; Porous Media; Pollutants; Computers; Heterogeneity; Groundwater Movement; Migration; Model Studies DO - http://dx.doi.org/10.1177/109434209901300105 ER - TY - JOUR T1 - The identification of [2- super(14)C]2-amino-1-methyl-6-phenylimidazo [4,5-b]pyridine metabolites in humans AN - 17260262; 4542513 AB - [2- super(14)C]2-amino-1-methyl-phenlimidazo[4,5-b]pyridine ([ super(14)C]PhIP), a putative human carcinogenic heterocyclic amine found in well-done cooked meat, was administered orally to three colon cancer patients undergoing a partial colonectomy. Forty-eight to seventy-two hours prior to surgery, subjects received a 70-84 [mgr]g dose of super(14)C. Urine and blood were analyzed by HPLC for PhIP and PhIP metabolites. Metabolites were identified based on HPLC co-elution with authentic PhIP metabolite standards, mass spectral analysis and susceptibility to enzymatic cleavage. In two subjects, 90% of the administered [ super(14)CPhIP dose was eliminated in the urine, whereas in the other, only 50% of the dose was found in the urine. One subject excreted three times more radioactivity in the first 4 h than did the others. Twelve radioactive peaks associated with PhIP were detected in the urine samples. The relative amount of each metabolite varied by subject, and the amounts of each metabolite within subjects changed over time. In all three subjects the most abundant urinary metabolite was identified as 2-hydroxyamino-1-methyl-6-phenylimidazo[4,5-b]pyridine- N super(2)-glucuronide (N-hydroxy-PhIP-N super(2)-glucuronide, accounting for 47-60% of the recovered counts in 24 h. PhIP accounted for <1% of the excreted radiolabel in all three patients. Other metabolites detected in the urine at significant amounts were 4-(2-amino-1-methylimidazo[4,5-b]pyrid-6-yl)phenyl sulfate, N-hydroxy-PhIP-N super(3)-glucuronide and PhIP-N super(2)-glucuronide. In the plasma, N-hydroxy-PhIP-N super(2)-glucuronide accounted for 60, 18 and 20% of the recovered plasma radioactivity at 1 h post PhIP dose in subjects 1, 2 and 3 respectively. Plasma PhIP was 56-17% of the recovered dose at 1 h post exposure. The relatively high concentration of N-hydroxy-PhIP-N super(2)-glucuronide and the fact that it is an indicator of bioactivation make this metabolite a potential biomarker for PhIP exposure and activation. Determining the relative differences in PhIP metabolites among individuals will indicate metabolic differences that may predict individual susceptibility to carcinogenic risk from this suspected dietary carcinogen. JF - Carcinogenesis AU - Malfatti, MA AU - Kulp, K S AU - Knize, M G AU - Davis, C AU - Massengill, J P AU - Williams, S AU - Nowell, S AU - MacLeod, S AU - Dingley, KH AU - Turteltaub, K W AU - Lang, N P AU - Felton, J S AD - Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, PO Box 808, L-452, Livermore, CA 94551, USA, felton1@linl.gov Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 705 EP - 713 VL - 20 IS - 4 SN - 0143-3334, 0143-3334 KW - man KW - metabolites KW - Toxicology Abstracts KW - Meat KW - Heterocyclic amines KW - Urine KW - Carcinogenicity KW - Food KW - Cooking KW - Dietary intake KW - X 24120:Food, additives & contaminants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17260262?accountid=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=Carcinogenesis&rft.atitle=The+identification+of+%5B2-+super%2814%29C%5D2-amino-1-methyl-6-phenylimidazo+%5B4%2C5-b%5Dpyridine+metabolites+in+humans&rft.au=Malfatti%2C+MA%3BKulp%2C+K+S%3BKnize%2C+M+G%3BDavis%2C+C%3BMassengill%2C+J+P%3BWilliams%2C+S%3BNowell%2C+S%3BMacLeod%2C+S%3BDingley%2C+KH%3BTurteltaub%2C+K+W%3BLang%2C+N+P%3BFelton%2C+J+S&rft.aulast=Malfatti&rft.aufirst=MA&rft.date=1999-04-01&rft.volume=20&rft.issue=4&rft.spage=705&rft.isbn=&rft.btitle=&rft.title=Carcinogenesis&rft.issn=01433334&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 - Carcinogenicity; Urine; Dietary intake; Heterocyclic amines; Cooking; Food; Meat ER - TY - JOUR T1 - Frequency of spontaneous chromosome aberrations in mice: effects of age. AN - 69638222; 10082924 AB - In this paper, we present data on chromosome aberration frequencies in mice which served as unexposed controls in a variety of radiation and chemical toxicology experiments conducted in our laboratory in recent years. All chromosome aberration data were obtained by chromosome painting. In peripheral blood lymphocytes from 102 animals, the frequencies of translocations and insertions increased significantly with age. No increase with age was seen for dicentrics or acentric fragments. When the data were analyzed by strain, the age-related increase in translocation frequencies was observed only in the 71 homozygous C57BL/6 mice and not in any of the three heterozygous strains. Very few aberrations of any type were observed in 62 bone marrow samples, and no effect of age was seen for any aberration type in this tissue. These results are similar to those observed in unexposed humans, and suggest that the increase in translocations is not the result of accumulated damage from chronic 'background' environmental exposures but instead may be due to biological processes associated with aging. JF - Mutation research AU - Tucker, J D AU - Spruill, M D AU - Ramsey, M J AU - Director, A D AU - Nath, J AD - Biology and Biotechnology Research Program, P.O. Box 808, L-452, Lawrence Livermore National Laboratory, Livermore, CA 94551-9900, USA. tucker5@11nl.gov Y1 - 1999/03/10/ PY - 1999 DA - 1999 Mar 10 SP - 135 EP - 141 VL - 425 IS - 1 SN - 0027-5107, 0027-5107 KW - Index Medicus KW - Animals KW - Heterozygote KW - Mice, Inbred C57BL KW - Mice KW - Chromosome Aberrations KW - Aging -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69638222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Frequency+of+spontaneous+chromosome+aberrations+in+mice%3A+effects+of+age.&rft.au=Tucker%2C+J+D%3BSpruill%2C+M+D%3BRamsey%2C+M+J%3BDirector%2C+A+D%3BNath%2C+J&rft.aulast=Tucker&rft.aufirst=J&rft.date=1999-03-10&rft.volume=425&rft.issue=1&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-04-13 N1 - Date created - 1999-04-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Use of Kodak Ektapro High-Speed Digital Cameras in Laryngoscopy AN - 85619216; 9910074 AB - The use of videostroboscopic cameras operating at normal speeds (24-30 frames per second or fps) is commonplace in laryngoscopy. However, the time between recorded frames can include several glottal cycles. Thus, only disorders that persist for many tens of cycles can be distinguished. To observe more transient events, a higher frame rate is needed. Highspeed digital cameras provide such an option. These cameras offer good resolution, easy operation, & very fast frame rates (up to 12000 fps) that allow for capture of transitory events, such as onsets & offsets of voicing & the details of a single vibratory cycle. These attributes can prove useful to voice clinicians & researchers alike. Here, the use of such cameras with & without image intensifiers is examined in a clinical & research setting & recommendations are offered for their operation, including the synchronization of the frame information with audio or other data. Specific information is offered on the Kodak EktaPro Hi-Spec Motion Analyzer Model 1012 with Intensified lmager Model VSG. 7 Figures, 2 References. Adapted from the source document JF - Phonoscope AU - Burnett, Gregory C AU - Leonard, Rebecca AD - Lawrence Livermore National Laboratory, POB 808 L-272 Livermore, CA 94551 burnett5@llnl.gov Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 33 EP - 40 VL - 2 IS - 1 SN - 1073-378X, 1073-378X KW - Laryngology (45350) KW - Visual Media (94550) KW - Phonation Structures (64550) KW - Phonation Disorders (64450) KW - Speech Therapy (83200) KW - article KW - 6812: special education; language therapy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85619216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Allba&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Phonoscope&rft.atitle=Use+of+Kodak+Ektapro+High-Speed+Digital+Cameras+in+Laryngoscopy&rft.au=Burnett%2C+Gregory+C%3BLeonard%2C+Rebecca&rft.aulast=Burnett&rft.aufirst=Gregory&rft.date=1999-03-01&rft.volume=2&rft.issue=1&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Phonoscope&rft.issn=1073378X&rft_id=info:doi/ LA - English DB - Linguistics and Language Behavior Abstracts (LLBA) N1 - Date revised - 2003-10-01 N1 - Last updated - 2016-09-27 N1 - SubjectsTermNotLitGenreText - Phonation Structures (64550); Phonation Disorders (64450); Speech Therapy (83200); Visual Media (94550); Laryngology (45350) ER - TY - JOUR T1 - Formation of mutagenic/carcinogenic heterocyclic amines in dry-heated model systems, meats, and meat drippings. AN - 69275693; 10552422 AB - Mixtures of amino acids, creatine, and glucose simulating the composition of six different kinds of meats (beef, chicken breast, chicken thigh, turkey breast, pork, and fish) were dry-heated to simulate the formation of heterocyclic amines in meats. The presence of 16 heterocyclic amines was investigated in the model systems and in the six meats and their corresponding meat drippings to determine the importance of meat composition to heterocyclic amine formation. Nine mutagenic amines (IQ, MeIQ, 8-MeIQx, 4,8-DiMeIQx, PhIP, IQx, IFP, DMIP, and TMIP) were found to be present at concentrations >0.1 ng/g in some of the model systems and in some of the meats or pan residues. Heterocyclic amine concentrations clearly are affected by precursor composition in this model system, and the same nine heterocyclic amines formed in the meat and in the model system show that this is a well-controlled surrogate for the reaction conditions that occur in meats during cooking. JF - Journal of agricultural and food chemistry AU - Pais, P AU - Salmon, C P AU - Knize, M G AU - Felton, J S AD - Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, University of California, P.O. Box 808, Livermore, California 94551-9900, USA. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 1098 EP - 1108 VL - 47 IS - 3 SN - 0021-8561, 0021-8561 KW - Amines KW - 0 KW - Carcinogens KW - Mutagens KW - Quinolines KW - Index Medicus KW - Swine KW - Animals KW - Chickens KW - Cattle KW - Turkeys KW - Fishes KW - Meat KW - Quinolines -- chemistry KW - Mutagens -- analysis KW - Cooking KW - Amines -- chemistry KW - Quinolines -- isolation & purification KW - Carcinogens -- analysis KW - Amines -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69275693?accountid=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+agricultural+and+food+chemistry&rft.atitle=Formation+of+mutagenic%2Fcarcinogenic+heterocyclic+amines+in+dry-heated+model+systems%2C+meats%2C+and+meat+drippings.&rft.au=Pais%2C+P%3BSalmon%2C+C+P%3BKnize%2C+M+G%3BFelton%2C+J+S&rft.aulast=Pais&rft.aufirst=P&rft.date=1999-03-01&rft.volume=47&rft.issue=3&rft.spage=1098&rft.isbn=&rft.btitle=&rft.title=Journal+of+agricultural+and+food+chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-21 N1 - Date created - 2000-08-21 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Dating Quaternary lacustrine sediments in the McMurdo dry valleys, Antarctica AN - 52501238; 1999-024855 AB - Reports of erroneously old (super 14) C dates for modern Antarctic materials have thrown doubt into (super 14) C chronologies. The carbon reservoir effect purported to exist in Quaternary lacustrine sediments of the McMurdo Dry Valleys was investigated by studying (super 14) C distribution, and testing alternate dating techniques. Our results show that the carbon reservoir effect is not pervasive. Stream and near-shore microbial mats and dissolved inorganic carbon (DIC) in the surface waters of Lake Fryxell are in equilibrium with modern (super 14) CO (sub 2) . The surface waters of Lake Hoare and Lake Bonney, however, have DIC (super 14) C ages of 1650 and 2080 yr B.P., respectively. These older age estimates are suggested to be due to the direct input of large amounts of glacial melt with relict DIC. On the other hand, Lake Fryxell receives only a minor component of its inflow directly from a glacier, while a large component must travel long distances in numerous shallow ephemeral streams after leaving local valley glaciers. This mode of melt-water input allows the water to equilibrate with modern CO (sub 2) before entering the lake. Bottom-water (super 14) C ages for Lake Hoare closely match surface sediment ages, supporting the widely published period approximately 1200 yr B.P. (after a 1650 yr reservoir correction) when most dry valley lakes apparently evaporated to small brine ponds and/or disappeared completely. Lake Bonney bottom-water is approximately 8000 yr B.P. Carbon dating is shown to be a viable technique for lake edge deposits, and possibly lake bottom deposits where a correction to the sediment surface age can be obtained. However, we conclude that deep-water paleolake deposits can not be reliably dated using (super 14) C alone because of an inability to determine the age of the reservoir correction (i.e. accounting for the initial carbon reservoir, plus the age of the bottom water). A suite of alternative and complimentary dating techniques were tested on modern and late Holocene lacustrine deposits. These include thermoluminescence (TL), (super 210) Pb, (super 137) Cs, and paleomagnetism. Of these techniques, TL (or the more sensitive optically stimulated luminescence) holds the most promise for correcting lake sediment (super 14) C ages. TL dating of the modern Lake Hoare sediments showed an approximately 1000 yr relict signal. This signal is unaffected by the age of the lake water. Both (super 210) Pb and (super 137) Cs occurred in very low levels in the sediments and do not appear to be viable dating techniques for the perennially ice-covered lakes of the McMurdo Dry Valleys. Paleomagnetism was not suited to the coarse-grained nature of Lake Hoare bottom sediments, but could be a useful alternative given a finer sediment type. JF - Palaeogeography, Palaeoclimatology, Palaeoecology AU - Doran, Peter T AU - Berger, G W AU - Lyons, W B AU - Wharton, R A, Jr AU - Davisson, M L AU - Southon, J AU - Dibb, J E Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 223 EP - 239 PB - Elsevier, Amsterdam VL - 147 IS - 3-4 SN - 0031-0182, 0031-0182 KW - isotopes KW - lead KW - dry valleys KW - thermoluminescence KW - Holocene KW - Cenozoic KW - radioactive isotopes KW - cesium KW - dates KW - carbon KW - sediments KW - absolute age KW - depositional environment KW - Quaternary KW - alkali metals KW - paleomagnetism KW - correlation KW - inorganic materials KW - Antarctica KW - Cs-137 KW - metals KW - McMurdo dry valleys KW - lacustrine environment KW - Victoria Land KW - C-14 KW - accuracy KW - Pb-210 KW - lake sediments KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52501238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Palaeogeography%2C+Palaeoclimatology%2C+Palaeoecology&rft.atitle=Dating+Quaternary+lacustrine+sediments+in+the+McMurdo+dry+valleys%2C+Antarctica&rft.au=Doran%2C+Peter+T%3BBerger%2C+G+W%3BLyons%2C+W+B%3BWharton%2C+R+A%2C+Jr%3BDavisson%2C+M+L%3BSouthon%2C+J%3BDibb%2C+J+E&rft.aulast=Doran&rft.aufirst=Peter&rft.date=1999-03-01&rft.volume=147&rft.issue=3-4&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Palaeogeography%2C+Palaeoclimatology%2C+Palaeoecology&rft.issn=00310182&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00310182 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1999-01-01 N1 - Number of references - 63 N1 - Document feature - illus. incl. 8 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - PPPYAB N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; alkali metals; Antarctica; C-14; carbon; Cenozoic; cesium; correlation; Cs-137; dates; depositional environment; dry valleys; Holocene; inorganic materials; isotopes; lacustrine environment; lake sediments; lead; McMurdo dry valleys; metals; paleomagnetism; Pb-210; Quaternary; radioactive isotopes; sediments; thermoluminescence; Victoria Land ER - TY - JOUR T1 - Quartzlike carbon dioxide; an optically nonlinear extended solid at high pressures and temperatures AN - 52482244; 1999-036791 JF - Science AU - Iota, V AU - Yoo, C S AU - Cynn, H Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 1510 EP - 1513 PB - American Association for the Advancement of Science, Washington, DC VL - 283 IS - 5407 SN - 0036-8075, 0036-8075 KW - silicates KW - experimental studies KW - pressure KW - silica minerals KW - phase transitions KW - crystal structure KW - high pressure KW - temperature KW - carbon dioxide KW - laboratory studies KW - Raman spectra KW - polymorphism KW - vibrational spectra KW - quartz KW - framework silicates KW - spectra KW - anvil cells KW - minerals KW - high temperature KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52482244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Quartzlike+carbon+dioxide%3B+an+optically+nonlinear+extended+solid+at+high+pressures+and+temperatures&rft.au=Iota%2C+V%3BYoo%2C+C+S%3BCynn%2C+H&rft.aulast=Iota&rft.aufirst=V&rft.date=1999-03-01&rft.volume=283&rft.issue=5407&rft.spage=1510&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 - 22 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - anvil cells; carbon dioxide; crystal structure; experimental studies; framework silicates; high pressure; high temperature; laboratory studies; minerals; phase transitions; polymorphism; pressure; quartz; Raman spectra; silica minerals; silicates; spectra; temperature; vibrational spectra ER - TY - JOUR T1 - The phosphates of IIIAB iron meteorites AN - 52464219; 1999-043290 AB - Thirteen phosphate minerals are found in IIIAB iron meteorites. Four of these (sarcopside, graftonite, johnsomervilleite, and galileiite) constitute the majority of occurrences. The IIIB iron meteorites are confined to occurrences of only these four phosphates. The IIIA iron meteorites may contain one or more of these four phases; they may also contain other rarer phosphates, and silica (in two instances) and a silicate rock (in one instance). Thus, the IIIA lithophile chemistry is more varied than that of the IIB meteorites. Based on petrographic relations, sarcopside appears to be the first phosphate to form. Graftonite is probably formed by recrystallization of sarcopside. Johnsomervilleite and galileiite exsolved as enclaves in sarcopside or graftonite at lower temperatures, although some of these also nucleated as separate crystals. The IIIAB phosphates are carriers of a group of incompatible lithophile elements: Fe, Mn, Na, Ca, and K, and, rarely, Mg as well as Pb. These elements (and O) were concentrated in a residual, S-rich liquid during igneous fractional crystallization of the IIIAB core mass. The phosphates formed by oxidation of P as the core solidified and excluded O, which increased its partial pressure in the residual liquid. The trace siderophile trends in bulk IIIAB metal are paralleled by a mineralogical trend of the phosphate minerals that formed. For IIIAB meteorites with low-Ir contents in the metal, the phosphates are mainly Fe-Mn phases; at intermediate Ir values, more Na-bearing phosphates appear; at the highest Ir values, the rarer Na-, K-, Mg-, Cr-, and Pb- bearing phosphates appear. The absence of significant amounts of Mg, Si, Al, and Ti suggest depletion of these elements in the core by the overlying mantle. JF - Meteoritics & Planetary Science AU - Olsen, Edward J AU - Kracher, Alfred AU - Davis, Andrew M AU - Steele, Ian M AU - Hutcheon, Ian D AU - Bunch, T E Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 285 EP - 300 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 2 SN - 1086-9379, 1086-9379 KW - graftonite KW - sarcopside KW - phosphates KW - lithophile elements KW - electron probe data KW - meteorites KW - mineral composition KW - iron meteorites KW - metals KW - magmas KW - galileiite KW - petrography KW - rare earths KW - johnsomervilleite KW - fractional crystallization KW - trace elements KW - chemical composition KW - sulfides KW - troilite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52464219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+phosphates+of+IIIAB+iron+meteorites&rft.au=Olsen%2C+Edward+J%3BKracher%2C+Alfred%3BDavis%2C+Andrew+M%3BSteele%2C+Ian+M%3BHutcheon%2C+Ian+D%3BBunch%2C+T+E&rft.aulast=Olsen&rft.aufirst=Edward&rft.date=1999-03-01&rft.volume=34&rft.issue=2&rft.spage=285&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 - 41 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical composition; electron probe data; fractional crystallization; galileiite; graftonite; iron meteorites; johnsomervilleite; lithophile elements; magmas; metals; meteorites; mineral composition; petrography; phosphates; rare earths; sarcopside; sulfides; trace elements; troilite ER - TY - JOUR T1 - The Altyn Tagh Fault-Tanghenan Shan Thrust triple junction; kinematic constraints and implications for the growth of the Tibetan Plateau AN - 52403301; 2000-011717 JF - Journal of Conference Abstracts AU - van der Woerd, Jerome AU - Tapponnier, Paul AU - Meyer, Bertrand AU - Xu, Xiwei AU - Ryerson, Frederick J AU - Meriaux, Anne-Sophie AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 55 EP - 56 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - Far East KW - coupling KW - slip rates KW - terraces KW - strike-slip faults KW - geodesy KW - Cenozoic KW - topography KW - neotectonics KW - Tibetan Plateau KW - tectonics KW - Asia KW - active faults KW - faults KW - China KW - Inner Mongolia China KW - Subei China KW - Quaternary KW - leveling KW - triple junctions KW - Tanghenan Shan Fault KW - Qilian Mountains KW - extension KW - kinematics KW - Altyn Tagh Fault KW - plate tectonics KW - thrust faults KW - Qinghai China KW - SPOT KW - remote sensing KW - field studies KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52403301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+Altyn+Tagh+Fault-Tanghenan+Shan+Thrust+triple+junction%3B+kinematic+constraints+and+implications+for+the+growth+of+the+Tibetan+Plateau&rft.au=van+der+Woerd%2C+Jerome%3BTapponnier%2C+Paul%3BMeyer%2C+Bertrand%3BXu%2C+Xiwei%3BRyerson%2C+Frederick+J%3BMeriaux%2C+Anne-Sophie%3BAnonymous&rft.aulast=van+der+Woerd&rft.aufirst=Jerome&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=55&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 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - active faults; Altyn Tagh Fault; Asia; Cenozoic; China; coupling; extension; Far East; faults; field studies; geodesy; Inner Mongolia China; kinematics; leveling; neotectonics; plate tectonics; Qilian Mountains; Qinghai China; Quaternary; remote sensing; slip rates; SPOT; strike-slip faults; Subei China; Tanghenan Shan Fault; tectonics; terraces; thrust faults; Tibetan Plateau; topography; triple junctions ER - TY - JOUR T1 - Post-collision volcanic rocks from the Kokoshili Shan, northeastern Tibetan Plateau; mafic to acidic young volcanism AN - 52403231; 2000-011684 JF - Journal of Conference Abstracts AU - Crambes, Christine AU - Tait, Stephen R AU - Tapponnier, Paul AU - Arnaud, Nicolas AU - Ryerson, Frederick J AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 48 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - post-tectonic processes KW - Far East KW - volcanic rocks KW - igneous rocks KW - mafic composition KW - continental crust KW - Kokoshili Shan KW - Cenozoic KW - melting KW - volcanism KW - Tibetan Plateau KW - acidic composition KW - Asia KW - China KW - Quaternary KW - textures KW - magmatism KW - pyroclastics KW - Tertiary KW - intrusions KW - dikes KW - lava KW - Neogene KW - crust KW - field studies KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52403231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Post-collision+volcanic+rocks+from+the+Kokoshili+Shan%2C+northeastern+Tibetan+Plateau%3B+mafic+to+acidic+young+volcanism&rft.au=Crambes%2C+Christine%3BTait%2C+Stephen+R%3BTapponnier%2C+Paul%3BArnaud%2C+Nicolas%3BRyerson%2C+Frederick+J%3BAnonymous&rft.aulast=Crambes&rft.aufirst=Christine&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=48&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 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acidic composition; Asia; Cenozoic; China; continental crust; crust; dikes; Far East; field studies; igneous rocks; intrusions; Kokoshili Shan; lava; mafic composition; magmatism; melting; Neogene; post-tectonic processes; pyroclastics; Quaternary; Tertiary; textures; Tibetan Plateau; volcanic rocks; volcanism ER - TY - JOUR T1 - Holocene slip-rates on the Kunlun Fault determined by cosmic-ray exposure and radiocarbon dating AN - 52402072; 2000-011730 JF - Journal of Conference Abstracts AU - Ryerson, Frederick J AU - van der Woerd, Jerome AU - Tapponnier, Paul AU - Finkel, Robert AU - Caffee, Marc AU - Meriaux, Anne-Sophie AU - Kashgarian, Michaele AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 58 EP - 59 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - silicates KW - terrestrial environment KW - Far East KW - silica minerals KW - isotopes KW - postglacial environment KW - cosmogenic elements KW - slip rates KW - terraces KW - paleoclimatology KW - Holocene KW - exposure age KW - climate change KW - Cenozoic KW - Al-26 KW - recurrence interval KW - radioactive isotopes KW - dates KW - Xizang China KW - carbon KW - aluminum KW - sediments KW - moraines KW - absolute age KW - framework silicates KW - Asia KW - active faults KW - faults KW - China KW - charcoal KW - alkaline earth metals KW - Quaternary KW - Be-10 KW - clastic sediments KW - landform evolution KW - Kunlun Mountains KW - coseismic processes KW - metals KW - quartz KW - Kunlun Fault KW - alluvium KW - C-14 KW - earthquakes KW - beryllium KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52402072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Holocene+slip-rates+on+the+Kunlun+Fault+determined+by+cosmic-ray+exposure+and+radiocarbon+dating&rft.au=Ryerson%2C+Frederick+J%3Bvan+der+Woerd%2C+Jerome%3BTapponnier%2C+Paul%3BFinkel%2C+Robert%3BCaffee%2C+Marc%3BMeriaux%2C+Anne-Sophie%3BKashgarian%2C+Michaele%3BAnonymous&rft.aulast=Ryerson&rft.aufirst=Frederick&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=58&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 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; active faults; Al-26; alkaline earth metals; alluvium; aluminum; Asia; Be-10; beryllium; C-14; carbon; Cenozoic; charcoal; China; clastic sediments; climate change; coseismic processes; cosmogenic elements; dates; earthquakes; exposure age; Far East; faults; framework silicates; Holocene; isotopes; Kunlun Fault; Kunlun Mountains; landform evolution; metals; moraines; paleoclimatology; postglacial environment; quartz; Quaternary; radioactive isotopes; recurrence interval; sediments; silica minerals; silicates; slip rates; terraces; terrestrial environment; Xizang China ER - TY - JOUR T1 - Large-scale strain patterns, great earthquake breaks, and late Pleistocene slip-rate along the Altyn Tagh Fault (China) AN - 52398717; 2000-011716 JF - Journal of Conference Abstracts AU - Meriaux, Anne-Sophie AU - Tapponnier, Paul AU - Ryerson, Frederick J AU - van der Woerd, Jerome AU - Lasserre, Cecile AU - Xu, Xiwei AU - Finkel, Robert AU - Caffee, Marc AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 55 PB - Cambridge Publications, Cambridge VL - 4 IS - 1 SN - 1362-0886, 1362-0886 KW - Far East KW - strain KW - isotopes KW - cosmogenic elements KW - slip rates KW - terraces KW - exposure age KW - upper Pleistocene KW - Cenozoic KW - Al-26 KW - radioactive isotopes KW - neotectonics KW - dates KW - carbon KW - aluminum KW - moraines KW - absolute age KW - tectonics KW - Asia KW - active faults KW - seismotectonics KW - faults KW - China KW - alkaline earth metals KW - Quaternary KW - Be-10 KW - Altyn Tagh Fault KW - metals KW - Pleistocene KW - C-14 KW - earthquakes KW - beryllium KW - field studies KW - 24:Quaternary geology KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52398717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Large-scale+strain+patterns%2C+great+earthquake+breaks%2C+and+late+Pleistocene+slip-rate+along+the+Altyn+Tagh+Fault+%28China%29&rft.au=Meriaux%2C+Anne-Sophie%3BTapponnier%2C+Paul%3BRyerson%2C+Frederick+J%3Bvan+der+Woerd%2C+Jerome%3BLasserre%2C+Cecile%3BXu%2C+Xiwei%3BFinkel%2C+Robert%3BCaffee%2C+Marc%3BAnonymous&rft.aulast=Meriaux&rft.aufirst=Anne-Sophie&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=55&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 - SuppNotes - Terra Abstracts, Vol. 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; active faults; Al-26; alkaline earth metals; Altyn Tagh Fault; aluminum; Asia; Be-10; beryllium; C-14; carbon; Cenozoic; China; cosmogenic elements; dates; earthquakes; exposure age; Far East; faults; field studies; isotopes; metals; moraines; neotectonics; Pleistocene; Quaternary; radioactive isotopes; seismotectonics; slip rates; strain; tectonics; terraces; upper Pleistocene ER - TY - JOUR T1 - Plutonium behavior in the environment AN - 52375860; 2000-027579 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Haken, N AU - Al Mahamid, I AU - Stringfellow, W AU - Morss, L R Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 142 PB - American Chemical Society, Washington, DC VL - 217, Part 2 SN - 0065-7727, 0065-7727 KW - soils KW - colloidal materials KW - plutonium KW - complexing KW - pollution KW - hydrolysis KW - Pseudomonas KW - migration of elements KW - solubility KW - radioactive waste KW - detection KW - metals KW - bacteria KW - tracers KW - chemical properties KW - chelation KW - waste disposal KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52375860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+behavior+in+the+environment&rft.au=Haken%2C+N%3BAl+Mahamid%2C+I%3BStringfellow%2C+W%3BMorss%2C+L+R&rft.aulast=Haken&rft.aufirst=N&rft.date=1999-03-01&rft.volume=217%2C+Part+2&rft.issue=&rft.spage=142&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; bacteria; chelation; chemical properties; colloidal materials; complexing; detection; hydrolysis; metals; migration of elements; plutonium; pollution; Pseudomonas; radioactive waste; soils; solubility; tracers; waste disposal ER - TY - JOUR T1 - Strontium sorption to amorphous silica, kaolinite, geothite, and gibbsite AN - 52281915; 2001-002166 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Carroll, S A AU - Roberts, R AU - Hayden, C 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 - alkaline earth metals KW - goethite KW - amorphous materials KW - physicochemical properties KW - complexing KW - kaolinite KW - clay minerals KW - saturation KW - silica KW - metals KW - chemical properties KW - oxides KW - sheet silicates KW - gibbsite KW - strontium KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52281915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Strontium+sorption+to+amorphous+silica%2C+kaolinite%2C+geothite%2C+and+gibbsite&rft.au=Carroll%2C+S+A%3BRoberts%2C+R%3BHayden%2C+C%3BAnonymous&rft.aulast=Carroll&rft.aufirst=S&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 - alkaline earth metals; amorphous materials; chemical properties; clay minerals; complexing; gibbsite; goethite; kaolinite; metals; oxides; physicochemical properties; saturation; sheet silicates; silica; silicates; strontium ER - TY - JOUR T1 - EXAFS study of Sr (super 2+) sorption on goethite, kaolinite and silica AN - 52279973; 2001-002162 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Sahai, Nita AU - O'Day, P A AU - Carroll, S A AU - Roberts, S 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 - hydration KW - sorption KW - goethite KW - saturation KW - silica KW - thermal properties KW - oxides KW - sheet silicates KW - kaolinite KW - clay minerals KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52279973?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=EXAFS+study+of+Sr+%28super+2%2B%29+sorption+on+goethite%2C+kaolinite+and+silica&rft.au=Sahai%2C+Nita%3BO%27Day%2C+P+A%3BCarroll%2C+S+A%3BRoberts%2C+S%3BAnonymous&rft.aulast=Sahai&rft.aufirst=Nita&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 - clay minerals; goethite; hydration; kaolinite; oxides; saturation; sheet silicates; silica; silicates; sorption; thermal properties ER - TY - JOUR T1 - Hydrothermal atomic force microscopic investigations of barium sulfate dissolution AN - 52279916; 2001-002187 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Higgins, Steven R AU - Jordan, Guntram AU - Eggleston, Carrick M AU - Knauss, G 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 - sulfates KW - crystal structure KW - two-dimensional models KW - temperature KW - hydrothermal conditions KW - kinematics KW - atomic force microscopy data KW - barium sulfate KW - chemical properties KW - crystallization KW - barite KW - geochemistry KW - high temperature KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52279916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Hydrothermal+atomic+force+microscopic+investigations+of+barium+sulfate+dissolution&rft.au=Higgins%2C+Steven+R%3BJordan%2C+Guntram%3BEggleston%2C+Carrick+M%3BKnauss%2C+G%3BAnonymous&rft.aulast=Higgins&rft.aufirst=Steven&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 - atomic force microscopy data; barite; barium sulfate; chemical properties; crystal structure; crystallization; geochemistry; high temperature; hydrothermal conditions; kinematics; sulfates; temperature; two-dimensional models ER - TY - JOUR T1 - Isopiestic study of aqueous sodium sulfate and a variable-temperature extended Pitzer model valid to high temperatures and molalities AN - 52278153; 2001-002202 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Rard, Joseph A AU - Clegg, Simon L AU - Palmer, Donald A 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 - liquid phase KW - molalities KW - pressure KW - physicochemical properties KW - solutes KW - aqueous solutions KW - sodium sulfate KW - temperature KW - enthalpy KW - saturation KW - chemical properties KW - chemical composition KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52278153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Isopiestic+study+of+aqueous+sodium+sulfate+and+a+variable-temperature+extended+Pitzer+model+valid+to+high+temperatures+and+molalities&rft.au=Rard%2C+Joseph+A%3BClegg%2C+Simon+L%3BPalmer%2C+Donald+A%3BAnonymous&rft.aulast=Rard&rft.aufirst=Joseph&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 - aqueous solutions; chemical composition; chemical properties; enthalpy; geochemistry; liquid phase; molalities; physicochemical properties; pressure; saturation; sodium sulfate; solutes; temperature ER - TY - JOUR T1 - Multinuclear NMR investigations on the influence of alkali cations on glass dissolution AN - 52276323; 2001-002188 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Maxwell, R S AU - Carroll, S A AU - Bourcier, W L 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 - concentration KW - experimental studies KW - colloidal materials KW - complexing KW - alkali metals KW - solution KW - NMR spectra KW - gels KW - solid phase KW - sample preparation KW - cesium KW - silica KW - metals KW - chemical properties KW - cations KW - alkalinity KW - spectra KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52276323?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Multinuclear+NMR+investigations+on+the+influence+of+alkali+cations+on+glass+dissolution&rft.au=Maxwell%2C+R+S%3BCarroll%2C+S+A%3BBourcier%2C+W+L%3BAnonymous&rft.aulast=Maxwell&rft.aufirst=R&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 - alkali metals; alkalinity; cations; cesium; chemical properties; colloidal materials; complexing; concentration; experimental studies; gels; metals; NMR spectra; sample preparation; silica; solid phase; solution; spectra ER - TY - JOUR T1 - Electrical Impedance tomography of known targets AN - 51966892; 2003-051549 AB - Electrical impedance tomographs (showing magnitude and phase) of known, laboratory-scale targets are reported. Also presented is a generalization of a proven electrical resistance tomography (ERT) algorithm, to account for electrical impedance. Three methods are used to reconstruct electrical impedance data and their results compared. The first two methods employ approximate relationships between the measurements and reconstructed tomograph while the third approach employs fully complex algebra to account for the real and imaginary components of electrical impedance data. The electrical impedance tomography (EIT) and the perturbation analysis (PA) algorithms provided useful magnitude and phase images for the frequency range of 0.0625 to 64 Hz; images for 256 and 1024 Hz are also presented but these were not reliable. The frequency effect (FE) approach did not produce reliable phase images. Comparisons of the ERT and EIT magnitude images show that both methods provided equivalent results for the water blank, copper rod and PVC rod targets. The EIT magnitude images showed better spatial resolution for the sand-lead mixture target. Phase images from both methods located reasonably well anomalies of both high and low contrast induced polarization (IP) and provided better spatial resolution than the magnitude images. When IP was absent from the data, the EIT and PA algorithms reconstructed phase values consistent with the data noise levels. JF - Journal of Environmental & Engineering Geophysics AU - Ramirez, Abelardo L AU - Daily, William AU - Binley, Andrew AU - LaBrecque, Douglas Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 11 EP - 26 PB - Environmental and Engineering Geophysical Society, Englewood, CO VL - 4 IS - 1 SN - 1083-1363, 1083-1363 KW - tomography KW - experimental studies KW - geophysical methods KW - electrical methods KW - frequency KW - electrical resistence tomography KW - resistivity KW - electrical impedance tomography KW - theoretical studies KW - mathematical methods KW - induced polarization KW - impedance KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51966892?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Environmental+%26+Engineering+Geophysics&rft.atitle=Electrical+Impedance+tomography+of+known+targets&rft.au=Ramirez%2C+Abelardo+L%3BDaily%2C+William%3BBinley%2C+Andrew%3BLaBrecque%2C+Douglas&rft.aulast=Ramirez&rft.aufirst=Abelardo&rft.date=1999-03-01&rft.volume=4&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+%26+Engineering+Geophysics&rft.issn=10831363&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 44 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - electrical impedance tomography; electrical methods; electrical resistence tomography; experimental studies; frequency; geophysical methods; impedance; induced polarization; mathematical methods; resistivity; theoretical studies; tomography ER - TY - JOUR T1 - Comparing geophysical measurements to theoretical estimates for soil mixtures at low pressures AN - 50884307; 2002-029273 AB - Relationships between geophysical and hydrogeological properties are needed for improving characterization of the subsurface at contaminated sites using geophysical methods. As part of an on-going project with the goal of improving underground imaging, we are developing rock physics theories for relating elastic wave velocities to soil composition and fluid-flow parameters. Here we use effective medium theories to estimate velocities of unconsolidated sand-peat moss mixtures and compare the estimates to measured compressional and shear velocities from low-pressure laboratory experiments. We found that a self-consistent effective medium theory model using sand and porous peat as the constituents provides estimated velocities that are in good agreement with measured velocities. Understanding the microstructural assumptions inherent in various mixture theories guides the selection of appropriate theories for modeling velocities in soils. JF - Proceedings of SAGEEP AU - Berge, P A AU - Berryman, James G AU - Bonner, B P AU - Roberts, Jeffrey J AU - Wildenschild, Dorthe A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 465 EP - 472 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - soils KW - sand KW - experimental studies KW - pressure KW - clastic sediments KW - geophysical methods KW - elastic waves KW - low pressure KW - porosity KW - measurement KW - models KW - peat KW - laboratory studies KW - theoretical studies KW - sediments KW - velocity KW - image analysis KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50884307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Comparing+geophysical+measurements+to+theoretical+estimates+for+soil+mixtures+at+low+pressures&rft.au=Berge%2C+P+A%3BBerryman%2C+James+G%3BBonner%2C+B+P%3BRoberts%2C+Jeffrey+J%3BWildenschild%2C+Dorthe&rft.aulast=Berge&rft.aufirst=P&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=465&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 - 28 N1 - PubXState - CO N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - clastic sediments; elastic waves; experimental studies; geophysical methods; image analysis; laboratory studies; low pressure; measurement; models; peat; porosity; pressure; sand; sediments; soils; theoretical studies; velocity ER - TY - JOUR T1 - A finite-difference frequency-domain code for electromagnetic induction tomography AN - 50882790; 2002-029323 AB - We are developing a new 3D code for application to electromagnetic induction tomography and to environmental imaging problems. We have used the finite-difference frequency-domain formulation of Beilenhoff et al. (1992) and the anisotropic PML (perfectly matched layer) approach (Berenger, 1994) to specify boundary conditions following Wu et al. (1997). PML deals with the fact that the computations must be done in a finite domain even though the real problem is effectively of infinite extent. The resulting formulas for the forward solver reduce to a problem of the form Ax = y, where A is a non-Hermitian matrix with real values off the diagonal and complex values along its diagonal. The matrix A may be either symmetric or nonsymmetric depending on details of the boundary conditions chosen (i.e., the particular PML used in the application). The basic equation must be solved for the vector x (which represents field quantities such as electric and magnetic fields) with the vector y determined by the boundary conditions and transmitter location. Of the many forward solvers that could be used for this system, relatively few have been thoroughly tested for the type of matrix encountered in our problem. Our studies of the stability characteristics of the Bi-CG algorithm raised questions about its reliability and uniform accuracy for this application. We have found the stability characteristics of Bi-CGSTAB [an alternative developed by van der Vorst (1992) for such problems] to be entirely adequate for our application, whereas the standard Bi-CG was quite inadequate. We have also done extensive validation of our code using semianalytical results as well as other codes. The new code is written in Fortran 90 and is designed to be easily parallelized, but we have not yet tested this feature of the code. An adjoint method is being developed for solving the inverse problem for conductivity imaging (for mapping underground plumes), and this approach, when ready, will make repeated use of the current forward modeling code. JF - Proceedings of SAGEEP AU - Champagne, Nathan J, II AU - Berryman, James G AU - Buettner, H Michael AU - Grant, J Brian AU - Sharpe, Robert M A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 931 EP - 940 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - tomography KW - three-dimensional models KW - finite difference analysis KW - computer languages KW - statistical analysis KW - data processing KW - electrical field KW - inverse problem KW - equations KW - magnetic field KW - frequency domain analysis KW - mathematical methods KW - Fortran KW - algorithms KW - accuracy KW - electromagnetic induction KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50882790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=A+finite-difference+frequency-domain+code+for+electromagnetic+induction+tomography&rft.au=Champagne%2C+Nathan+J%2C+II%3BBerryman%2C+James+G%3BBuettner%2C+H+Michael%3BGrant%2C+J+Brian%3BSharpe%2C+Robert+M&rft.aulast=Champagne&rft.aufirst=Nathan&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=931&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 - 14 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, block diag. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; algorithms; computer languages; data processing; electrical field; electromagnetic induction; equations; finite difference analysis; Fortran; frequency domain analysis; inverse problem; magnetic field; mathematical methods; statistical analysis; three-dimensional models; tomography ER - TY - JOUR T1 - An integrated approach to monitoring a field test of in situ contaminant destruction AN - 50882633; 2002-029280 AB - The development of in situ thermal remediation techniques requires parallel development of techniques capable of monitoring the physical and chemical changes for purposes of process control. Recent research indicates that many common contaminants can be destroyed in situ by hydrous pyrolysis/oxidation (HPO), eliminating the need for costly surface treatment and disposal. Steam injection, combined with supplemental air, can create the conditions in which HPO occurs. Field testing of this process, conducted in the summer of 1997, indicates rapid destruction of polycyclic aromatic hydrocarbons (PAHs). Previous work established a suite of underground geophysical imaging techniques capable of providing sufficient knowledge of the physical changes in the subsurface during thermal treatment at sufficient frequencies to be used to monitor and guide the heating and extraction processes. In this field test, electrical resistance tomography (ERT) and temperature measurements provided the primary information regarding the temporal and spatial distribution of the heated zones. Verifying the in situ chemical destruction posed new challenges. We developed field methods for sampling and analyzing hot water for contaminants, oxygen, intermediates and products of reaction. Since the addition of air or oxygen to the contaminated region is a critical aspect of HPO, noble gas tracers were used to identify fluids from different sources. The combination of physical monitoring with noble gas identification of the native and injected fluids and accurate fluid sampling resulted in an excellent temporal and spatial evaluation of the subsurface processes, from which the amount of in situ destruction occurring in the treated region could be quantified. The experimental field results constrain the destruction rates throughout the site, and enable site management to make accurate estimates of total in situ destruction based on the recovered carbon. As of October, 1998, over 400,000 kg (900,000 lb) of contaminant have been removed from the site; about 18% of this has been destroyed in situ. JF - Proceedings of SAGEEP AU - Newmark, Robin L AU - Aines, Roger D AU - Hudson, G Bryant AU - Leif, Roald AU - Chiarappa, Marina AU - Carrigan, Charles AU - Nitao, John J AU - Elsholz, Allen AU - Eaker, Craig A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 527 EP - 539 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - United States KW - Tulare County California KW - monitoring KW - in situ KW - geophysical surveys KW - pollutants KW - oxidation KW - geophysical methods KW - pollution KW - recovery KW - remediation KW - California KW - steam injection KW - organic compounds KW - pyrolysis KW - noble gases KW - carbon KW - tracers KW - hydrocarbons KW - Visalia California KW - surveys KW - polycyclic aromatic hydrocarbons KW - aromatic hydrocarbons KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50882633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+integrated+approach+to+monitoring+a+field+test+of+in+situ+contaminant+destruction&rft.au=Newmark%2C+Robin+L%3BAines%2C+Roger+D%3BHudson%2C+G+Bryant%3BLeif%2C+Roald%3BChiarappa%2C+Marina%3BCarrigan%2C+Charles%3BNitao%2C+John+J%3BElsholz%2C+Allen%3BEaker%2C+Craig&rft.aulast=Newmark&rft.aufirst=Robin&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=527&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 - 15 N1 - PubXState - CO N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; California; carbon; geophysical methods; geophysical surveys; hydrocarbons; in situ; monitoring; noble gases; organic compounds; oxidation; pollutants; pollution; polycyclic aromatic hydrocarbons; pyrolysis; recovery; remediation; steam injection; surveys; tracers; Tulare County California; United States; Visalia California 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 - An electromagnetic induction tomography field experiment at Lost Hills, CA AN - 50882387; 2002-029295 AB - We have collected borehole to surface electromagnetic induction field data for a shallow steam injection that is underway at Mobil Oil's Lost Hills-3 field in San Joaquin Valley. Earlier work had been done at the same site by Wilt et al. (1996). This site is an interesting test for techniques under development for environmental engineering, because it can be viewed as an excellent analog of a shallow environmental remediation using steam injection. Surface magnetic field data (vertical and radial fields, magnitude and phase) were collected using 18 receiver stations along two profiles which ran radially from the EM transmitter well from 5 m to 120 m. The data at each surface station were collected while the EM transmitter was raised slowly from a depth of 120 m to a final depth of 20 m. As part of this experiment, a calibration of the EM transmitter was also performed. Magnetic field data from Lost Hills were successfully collected, including both vertical and horizontal (surface radial) magnitude and phase data along a northerly profile and along a westerly profile. We have observed that the radial receiver data appear to be better behaved than the vertical receiver data, suggesting that these data may be less sensitive to environmental clutter (numerous metallic pipes crisscrossing the site at the surface) than are the vertical data. Some simple 1-D modeling has been done to confirm that the expected conductivity change in the steam zone should produce an observable anomaly in the measured data when comparing the pre-steam to the post-steam conditions. Results of this test were positive. Further analyses of these data making use of a new code developed in a companion paper are in progress and will presented separately. JF - Proceedings of SAGEEP AU - Buettner, H Michael AU - Berryman, James G A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 663 EP - 672 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - United States KW - tomography KW - experimental studies KW - San Joaquin Valley KW - geophysical surveys KW - one-dimensional models KW - geophysical methods KW - Lost Hills-3 Field KW - water vapor KW - anomalies KW - Cenozoic KW - California KW - steam injection KW - conductivity KW - Tulare Formation KW - electromagnetic methods KW - surveys KW - geophysical profiles KW - instruments KW - electromagnetic induction KW - field studies KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50882387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+electromagnetic+induction+tomography+field+experiment+at+Lost+Hills%2C+CA&rft.au=Buettner%2C+H+Michael%3BBerryman%2C+James+G&rft.aulast=Buettner&rft.aufirst=H&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=663&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 - 16 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anomalies; California; Cenozoic; conductivity; electromagnetic induction; electromagnetic methods; experimental studies; field studies; geophysical methods; geophysical profiles; geophysical surveys; instruments; Lost Hills-3 Field; one-dimensional models; San Joaquin Valley; steam injection; surveys; tomography; Tulare Formation; United States; water vapor ER - TY - JOUR T1 - Use of VSP techniques to view, in 3D, partially saturated layers in the shallow subsurface at Lawrence Livermore National Laboratory, California AN - 50880662; 2002-029290 AB - A multi-offset VSP (vertical seismic profiling) method was developed to help define aquifer boundaries and below water table partially saturated zones at the Lawrence Livermore National Laboratory, Livermore Site, California. The VSP method consisted of using a multilevel hydrophone array giving 48 channels of recorded seismic data per shot. Hydrophone spacing was 0.5 m, with anti-tubewave baffling devices inserted between each phone, and at each end of the array to slow down and attenuate tube wave noise contaminating the desired data signals. The seismic source consisted of an impact weight-drop machine. The VSP data was processed, and inverted to produce 2D p-wave interval velocity sections with up to 0.5 m of vertical resolution in the unconsolidated sediments below the water table. Multiple 2D velocity sections were created, corresponding to radial arms of walk-away shot point records from multiple wells. These 2D velocity sections were then visually projected into the 3D survey volume, together with well locations, predefined hydrostratigraphic unit (HSU) layer boundaries, and the interpreted isopach map of a major HSU of interest. The interactive graphical display of all these data in 3D allowed correlations to be made between the VSP velocity images and the pre-existing data. The discovery of several low velocity zones below the water table was attributed to partially saturated pore spaces. Two thin (less than 1 m thick) layers with p-wave velocities as low as 500 m/s appeared to be perched on top of major aquifers undergoing pump extraction and treatment. Gas analysis from water samples taken from one of the aquifers indicated normal atmospheric air as a probable gas source. High pumping flow rates (20 to 30 gal/min) may help to explain how venturi action could be responsible for the intake of air from the vadose zone into porous but less permeable silty-sand units overlying sand-gravel aquifers. Possible uses for this VSP technique would be to delineate the zone of pumping influence, and help in the choice of suitable new well locations for either pumping or monitoring. JF - Proceedings of SAGEEP AU - Milligan, Paul A AU - Rector, James W, III AU - Bainer, Robert A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 619 EP - 628 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - United States KW - geophysical surveys KW - pumping KW - data processing KW - unsaturated zone KW - Alameda County California KW - seismic sources KW - ground water KW - California KW - vertical seismic profiles KW - saturated zone KW - Lawrence Livermore National Laboratory KW - seismic profiles KW - monitoring KW - three-dimensional models KW - geophysical methods KW - porosity KW - two-dimensional models KW - seismic methods KW - aquifers KW - water table KW - surveys KW - geophysical profiles KW - hydrophones KW - arrays KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50880662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Use+of+VSP+techniques+to+view%2C+in+3D%2C+partially+saturated+layers+in+the+shallow+subsurface+at+Lawrence+Livermore+National+Laboratory%2C+California&rft.au=Milligan%2C+Paul+A%3BRector%2C+James+W%2C+III%3BBainer%2C+Robert&rft.aulast=Milligan&rft.aufirst=Paul&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=619&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 - 5 N1 - PubXState - CO N1 - Document feature - illus. incl. sects., sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alameda County California; aquifers; arrays; California; data processing; geophysical methods; geophysical profiles; geophysical surveys; ground water; hydrophones; Lawrence Livermore National Laboratory; monitoring; porosity; pumping; saturated zone; seismic methods; seismic profiles; seismic sources; surveys; three-dimensional models; two-dimensional models; United States; unsaturated zone; vertical seismic profiles; water table ER - TY - JOUR T1 - Influence of microstructural properties on geophysical measurements in sand-clay mixtures AN - 50880512; 2002-029271 AB - We have performed a series of laboratory experiments on saturated sand-clay mixtures. Measurements include frequency-dependent electrical properties using the four-electrode technique (10 mHz to 1 MHz), permeability, porosity, and acoustic velocities. We mixed clean Ottawa (quartz) sand with Na-montmorillonite (Wyoming bentonite) in a number of different configurations containing 0 to 10% clay: as a dispersed mixture, as discrete clay clusters, and arranged in distinct layers. Solutions of CaCl (sub 2) ranging from 0.0005 N to 0.75 N (0.05 to 64 mS/cm) and deionized water were used as saturating fluids. We found the electrical properties to be dependent on clay content, fluid conductivity, and microstructure in a complex fashion. Increasing fluid conductivity and increasing clay content generally resulted in higher electrical conductivity. For an individual sample, two main regions of conduction exist: a region dominated by surface conduction and a region where the ionic strength of the saturating fluid controlled conduction. The sample geometry (dispersed, nondispersed, or layered clay configuration) was found to greatly affect the magnitude of the surface conductance in the range of low fluid conductivity. JF - Proceedings of SAGEEP AU - Wildenschild, Dorthe AU - Roberts, Jeffrey J AU - Carlberg, Eric D Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 445 EP - 454 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - silicates KW - clay KW - electrodes KW - electrical conductivity KW - silica minerals KW - microstructure KW - laboratory studies KW - sedimentary rocks KW - sediments KW - velocity KW - framework silicates KW - sand KW - experimental studies KW - electrical properties KW - bentonite KW - clastic sediments KW - geophysical methods KW - electrical methods KW - porous materials KW - porosity KW - measurement KW - quartz KW - clastic rocks KW - permeability KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50880512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Influence+of+microstructural+properties+on+geophysical+measurements+in+sand-clay+mixtures&rft.au=Wildenschild%2C+Dorthe%3BRoberts%2C+Jeffrey+J%3BCarlberg%2C+Eric+D&rft.aulast=Wildenschild&rft.aufirst=Dorthe&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=445&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 2014, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 9 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - bentonite; clastic rocks; clastic sediments; clay; electrical conductivity; electrical methods; electrical properties; electrodes; experimental studies; framework silicates; geophysical methods; laboratory studies; measurement; microstructure; permeability; porosity; porous materials; quartz; sand; sedimentary rocks; sediments; silica minerals; silicates; velocity ER - TY - JOUR T1 - High-performance computational and geostatistical experiments for testing the capabilities of 3-D electrical resistance tomography AN - 50880271; 2002-029296 AB - This project explores the feasibility of combining geologic insight, geostatistics, and high-performance computing to analyze the capabilities of 3-D electrical resistance tomography (ERT). Geostatistical methods are used to characterize the spatial variability of geologic facies that control subsurface variability of permeability and electrical resistivity. Synthetic ERT data sets are generated from geostatistical realizations of alluvial facies architecture. The synthetic data sets enable comparison of the "truth" to inversion results, quantification of the ability to detect particular facies at particular locations, and sensitivity studies on inversion parameters. JF - Proceedings of SAGEEP AU - Carle, Steven AU - Ramirez, Abelardo AU - Daily, William AU - Newmark, Robin L AU - Tompson, Andrew A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 673 EP - 682 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - tomography KW - experimental studies KW - three-dimensional models KW - statistical analysis KW - geophysical methods KW - electrical methods KW - geostatistics KW - resistivity KW - detection KW - mathematical methods KW - permeability KW - facies KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50880271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=High-performance+computational+and+geostatistical+experiments+for+testing+the+capabilities+of+3-D+electrical+resistance+tomography&rft.au=Carle%2C+Steven%3BRamirez%2C+Abelardo%3BDaily%2C+William%3BNewmark%2C+Robin+L%3BTompson%2C+Andrew&rft.aulast=Carle&rft.aufirst=Steven&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=673&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 - 10 N1 - PubXState - CO N1 - Document feature - illus. incl. block diags. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - detection; electrical methods; experimental studies; facies; geophysical methods; geostatistics; mathematical methods; permeability; resistivity; statistical analysis; three-dimensional models; tomography ER - TY - JOUR T1 - Laboratory scale tests of electrical impedance tomography AN - 50879530; 2002-029298 AB - Electrical impedance tomographs (magnitude and phase) of known, laboratory-scale targets are reported. Three methods are used to invert electrical impedance data and their tomographs compared. The first method uses an electrical resistance tomography (ERT) algorithm (designed for DC resistivity inversion) to perform impedance magnitude inversion and a linearized perturbation approach (PA) to invert the imaginary part. The second approximate method compares ERT magnitude inversions at two frequencies and uses the frequency effect (FE) to compute phase tomographs. The third approach, electrical impedance tomography (EIT), employs fully complex algebra to account for the real and imaginary components of electrical impedance data. The EIT approach provided useful magnitude and phase images for the frequency range of 0.0625 to 64 Hz; images for higher frequencies were not reliable. Comparisons of the ERT and EIT magnitude images show that both methods provided equivalent results for the water blank, copper rod and PVC rod targets. The EIT magnitude images showed better spatial resolution for a sand-lead mixture target. Phase images located anomalies of both high and low contrast IP and provided better spatial resolution than the magnitude images. When IP was absent from the data, the EIT algorithm reconstructed phase values consistent with the data noise levels. JF - Proceedings of SAGEEP AU - Ramirez, Abelardo AU - Daily, William AU - Binley, Andrew AU - LaBrecque, Douglas J A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 693 EP - 701 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - tomography KW - electrodes KW - experimental studies KW - crosshole methods KW - geophysical methods KW - electrical methods KW - inverse problem KW - anomalies KW - frequency KW - physical models KW - laboratory studies KW - mathematical methods KW - algorithms KW - image analysis KW - impedance KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50879530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Laboratory+scale+tests+of+electrical+impedance+tomography&rft.au=Ramirez%2C+Abelardo%3BDaily%2C+William%3BBinley%2C+Andrew%3BLaBrecque%2C+Douglas+J&rft.aulast=Ramirez&rft.aufirst=Abelardo&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=693&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 - 18 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; anomalies; crosshole methods; electrical methods; electrodes; experimental studies; frequency; geophysical methods; image analysis; impedance; inverse problem; laboratory studies; mathematical methods; physical models; tomography ER - TY - JOUR T1 - Electrical imaging of engineered hydraulic barriers AN - 50879487; 2002-029297 AB - Electrical resistance tomography (ERT) was used to image the full scale test emplacement of a thin-wall grout barrier installed by high pressure jetting. ERT was also used to monitor the water flood of a thin-wall grout barrier to verify its hydraulic integrity. Both case studies were done by comparing images of electrical resistivity before and after a change was induced in the subsurface. Barrier materials or flood water were imaged as anomalies which were more electrically conducting than the native sandy soils at the test sites. Although the spatial resolution of the ERT was not sufficient to resolve flaws in the barrier under construction smaller than a reconstruction voxel (50 cm on a side), the images did show the spatial extent of the barrier materials and therefore the general shape of the structure. JF - Proceedings of SAGEEP AU - Daily, William AU - Ramirez, Abelardo A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 683 EP - 691 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - United States KW - tomography KW - soils KW - Delaware KW - Kent County Delaware KW - geophysical surveys KW - geophysical methods KW - electrical methods KW - grouting KW - resistivity KW - structures KW - ground water KW - Dover Air Force Base KW - floods KW - surveys KW - testing KW - waste disposal KW - military facilities KW - image analysis KW - disposal barriers KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50879487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+imaging+of+engineered+hydraulic+barriers&rft.au=Daily%2C+William%3BRamirez%2C+Abelardo&rft.aulast=Daily&rft.aufirst=William&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=683&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 - 3 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Delaware; disposal barriers; Dover Air Force Base; electrical methods; floods; geophysical methods; geophysical surveys; ground water; grouting; image analysis; Kent County Delaware; military facilities; resistivity; soils; structures; surveys; testing; tomography; United States; waste disposal ER - TY - JOUR T1 - Ultrasonic characterization of synthetic soils for application to near surface geophysics AN - 50879455; 2002-029272 AB - Effective seismic interrogation of the near subsurface requires that measured parameters, such as compressional and shear velocities and attenuation, be related to important soil properties. Porosity, composition (clay content), and fluid content and identification are of particular interest. The ultrasonic (100-500 kHz) pulse transmission technique was used to collect data for highly attenuating materials appropriate to the vadose zone. Up to several meters of overburden was simulated by applying low uniaxial stress of 0.1 MPa to the sample. The approach has been to make baseline measurements for pure quartz sand, because the elastic properties are relatively well known except at the lowest pressures. Second phases are then added to modify the sample microstructure and ultrasonic measurements are made to characterize the effect of the admixed second phase. Samples are fabricated from Ottawa sand mixed with a swelling clay (Wyoming bentonite), and with a common organic soil amendment, peat. Compressional (P) velocities are low, ranging from 169 to 360 m/s for the mixtures at low stress. Shear (S) velocities are about half of the compressional velocity, but show different sensitivity to microstructure. Adding clay increases the shear amplitude dramatically with respect to P, and also changes the sensitivity of the velocities to load. These experiments demonstrate that P and S velocities are sensitive to the amount and type of admixed second phase, even at low concentrations. Other properties of the transmitted signals which include the ratio of S and P amplitudes, velocity gradient with depth, and the frequency content of transmitted pulses, provide additional information and are not now used in near-surface surveys. JF - Proceedings of SAGEEP AU - Bonner, B P AU - Berge, P A AU - Aracne-Ruddle, C AU - Boro, C AU - Hardy, E AU - Trombino, C A2 - Powers, Michael H. A2 - Cramer, Lynn A2 - Bell, Ronald S. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 455 EP - 463 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1999 KW - velocity analysis KW - P-waves KW - geophysical surveys KW - elastic properties KW - unsaturated zone KW - elastic waves KW - Ottawa Sand KW - sedimentary rocks KW - sediments KW - velocity KW - synthetic materials KW - soils KW - body waves KW - bentonite KW - clastic sediments KW - geophysical methods KW - properties KW - ultrasonic methods KW - porosity KW - seismic methods KW - surveys KW - quartz sand KW - seismic waves KW - clastic rocks KW - S-waves KW - 20:Applied geophysics KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50879455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ultrasonic+characterization+of+synthetic+soils+for+application+to+near+surface+geophysics&rft.au=Bonner%2C+B+P%3BBerge%2C+P+A%3BAracne-Ruddle%2C+C%3BBoro%2C+C%3BHardy%2C+E%3BTrombino%2C+C&rft.aulast=Bonner&rft.aufirst=B&rft.date=1999-03-01&rft.volume=1999&rft.issue=&rft.spage=455&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 - 15 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bentonite; body waves; clastic rocks; clastic sediments; elastic properties; elastic waves; geophysical methods; geophysical surveys; Ottawa Sand; P-waves; porosity; properties; quartz sand; S-waves; sedimentary rocks; sediments; seismic methods; seismic waves; soils; surveys; synthetic materials; ultrasonic methods; unsaturated zone; velocity; velocity analysis ER - TY - JOUR T1 - Terrestrial ages and exposure ages of Antarctic H-chondrites from Frontier Mountain, North Victoria Land AN - 50299186; 2000-001991 AB - We measured the isotopic compositions and concentrations of He, Ne and Ar as well as the concentrations of cosmogenic (super 10) Be, (super 26) Al and (super 36) Cl in 26 H-chondrites and 1 L-chondrite from a meteorite stranding area near the Frontier Mountain Range, East Antarctica. Based on the radionuclide concentrations and the noble gas signatures we conclude the 26 H-chondrite samples represent at least 13 different falls. The exposure ages of most H-chondrites are in the range of 4-10 million years (My). This age range encompasses the well-established exposure age peak at approximately 7 My and an additional feature at approximately 4 My. We determined the terrestrial ages on the basis of the (super 36) Cl concentration as well as using the relation between the (super 36) Cl/ (super 10) Be ratio and the (super 10) Be concentration. This relation also corrects for shielding effects and reduces the uncertainty in the age by approximately 25% compared to simple (super 36) Cl terrestrial ages. About 40% of the meteorites are older than 100 thousand years (ky), but none are older than 200 ky. The relatively short terrestrial ages suggest that Frontier Mountain is a young meteorite stranding area. This seems to be supported by the bedrock exposure history, which shows a recent surface exposure < or =70 ky. JF - Antarctic Meteorite Research AU - Welten, Kees C AU - Nishizumi, Kunihiko AU - Caffee, Marc W AU - Schaefer, Joerg AU - Wieler, Rainer Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 94 EP - 107 PB - National Institute of Polar Research, Tokyo VL - 12 SN - 1343-4284, 1343-4284 KW - ordinary chondrites KW - stony meteorites KW - isotopes KW - halogens KW - mass spectra KW - cosmogenic elements KW - Paleoarchean KW - exposure age KW - accelerator mass spectra KW - meteorites KW - Al-26 KW - radioactive isotopes KW - aluminum KW - Archean KW - spectra KW - chondrites KW - geochemistry KW - Frontier Mountain KW - chlorine KW - concentration KW - alkaline earth metals KW - Precambrian KW - cation exchange capacity KW - Be-10 KW - Cl-36 KW - terrestrial age KW - H chondrites KW - Antarctica KW - metals KW - chromatograms KW - Victoria Land KW - beryllium KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50299186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Antarctic+Meteorite+Research&rft.atitle=Terrestrial+ages+and+exposure+ages+of+Antarctic+H-chondrites+from+Frontier+Mountain%2C+North+Victoria+Land&rft.au=Welten%2C+Kees+C%3BNishizumi%2C+Kunihiko%3BCaffee%2C+Marc+W%3BSchaefer%2C+Joerg%3BWieler%2C+Rainer&rft.aulast=Welten&rft.aufirst=Kees&rft.date=1999-03-01&rft.volume=12&rft.issue=&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Antarctic+Meteorite+Research&rft.issn=13434284&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twentythird symposium on Antarctic meteorites N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - accelerator mass spectra; Al-26; alkaline earth metals; aluminum; Antarctica; Archean; Be-10; beryllium; cation exchange capacity; chlorine; chondrites; chromatograms; Cl-36; concentration; cosmogenic elements; exposure age; Frontier Mountain; geochemistry; H chondrites; halogens; isotopes; mass spectra; metals; meteorites; ordinary chondrites; Paleoarchean; Precambrian; radioactive isotopes; spectra; stony meteorites; terrestrial age; Victoria Land ER - TY - JOUR T1 - Workplace Use of an Adjustable Keyboard: Adjustment Preferences and Effect on Wrist Posture AN - 17266919; 4576648 AB - This study presents an evaluation of an adjustable keyboard based on subjective preference and wrist joint motion during typing. Thirty-five computer users used the adjustable split design keyboard for 7-14 days during their usual work and were instructed to adjust the keyboard to the opening angle they preferred. At the end of this period, three-dimensional motion analysis was performed to compare the distribution of wrist joint angles while subjects typed on a conventional keyboard and the adjustable keyboard adjusted to the subject's preferred angle. The mean preferred opening angle was 14 degree plus or minus 10. The mean ulnar deviation of the subjects who selected the opening angles between 21 and 28 degree (n = 12) decreased from 18 degree plus or minus 5 on the flat to 14 degree plus or minus 5 on the adjustable (p < 0.05), while those who selected 0 to 10 degree (n = 6) and 11 to 20 degree (n = 17) split angles showed no significant differences in ulnar deviation. Mean wrist extension on the adjustable keyboard was 17 degree plus or minus 5 and was significantly less than the 24 degree plus or minus 5 observed on the conventional keyboard and most likely due to the presence of palm support. On average, subjects reported that the adjustable keyboard was more comfortable (0.5 plus or minus 0.5) (worse = -1, same = 0, better, = 1) in comparison with the conventional keyboard. JF - American Industrial Hygiene Association Journal AU - Tittiranonda, P AU - Rempel, D AU - Armstrong, T AU - Burastero, S AD - Interdisciplinary Ergonomics Program, Mailstop L-723, Lawrence Livermore National Laboratory, University of California, Livermore, CA. 94550, USA Y1 - 1999/03// PY - 1999 DA - Mar 1999 SP - 340 EP - 348 VL - 60 IS - 3 SN - 0002-8894, 0002-8894 KW - keyboards KW - man-machine interactions KW - Health & Safety Science Abstracts KW - Ergonomics KW - H 10000:Ergonomics/Human Factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17266919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Industrial+Hygiene+Association+Journal&rft.atitle=Workplace+Use+of+an+Adjustable+Keyboard%3A+Adjustment+Preferences+and+Effect+on+Wrist+Posture&rft.au=Tittiranonda%2C+P%3BRempel%2C+D%3BArmstrong%2C+T%3BBurastero%2C+S&rft.aulast=Tittiranonda&rft.aufirst=P&rft.date=1999-03-01&rft.volume=60&rft.issue=3&rft.spage=340&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 - Ergonomics ER - TY - JOUR T1 - Comparison of DNA-adduct and tissue-available dose levels of MeIQx in human and rodent colon following administration of a very low dose. AN - 69563345; 9935154 AB - [2-14C]2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx) was administered orally (304 ng/kg body-weight dose based upon an average 70-kg-body-weight subject) to 5 human colon-cancer patients (58 to 84 years old), as well as to F344 rats and B6C3F1 mice. Colon tissue was collected from the human subjects at surgery and from the rodents 3.5 to 6 hr after administration. Colon DNA-adduct levels and tissue available doses were measured by accelerator mass spectrometry (AMS). The mean levels of MeIQx in the histologically normal colon tissue were not different among the human (97 +/- 26 pg MeIQx/g), rat (133 +/- 15 pg/g) or mouse (78 +/- 10 pg/g) tissues; and no difference existed between the levels detected in human normal and tumor tissue (101 +/- 15 pg/g). Mean DNA-adduct levels in normal human colon (26 +/- 4 adducts/10(12) nucleotides) were significantly greater (p < 0.01) than in rats (17.1 +/- 1 adduct/10(12) nucleotides) or mice (20.6 +/- 0.9 adduct/10(12) nucleotides). No difference existed in adduct levels between normal and tumor tissue in humans. These results show that MeIQx forms DNA adducts in human colon at low dose, and that the human colon may be more sensitive to the effects of MeIQx than that of mice or rats. JF - International journal of cancer AU - Mauthe, R J AU - Dingley, K H AU - Leveson, S H AU - Freeman, S P AU - Turesky, R J AU - Garner, R C AU - Turteltaub, K W AD - Molecular and Structural Biology Division and Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA. Y1 - 1999/02/09/ PY - 1999 DA - 1999 Feb 09 SP - 539 EP - 545 VL - 80 IS - 4 SN - 0020-7136, 0020-7136 KW - DNA Adducts KW - 0 KW - Mutagens KW - Quinoxalines KW - 2-amino-4-hydroxymethyl-3,8-dimethylimidazo(4,5-f)quinoxaline KW - 153954-29-1 KW - Index Medicus KW - Rats KW - Administration, Oral KW - Animals KW - Rats, Inbred F344 KW - Aged, 80 and over KW - Humans KW - Aged KW - Middle Aged KW - Mice KW - Male KW - Biological Availability KW - Mutagens -- metabolism KW - Colon -- metabolism KW - Quinoxalines -- metabolism KW - Quinoxalines -- administration & dosage KW - Mutagens -- administration & dosage KW - DNA Adducts -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69563345?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+journal+of+cancer&rft.atitle=Comparison+of+DNA-adduct+and+tissue-available+dose+levels+of+MeIQx+in+human+and+rodent+colon+following+administration+of+a+very+low+dose.&rft.au=Mauthe%2C+R+J%3BDingley%2C+K+H%3BLeveson%2C+S+H%3BFreeman%2C+S+P%3BTuresky%2C+R+J%3BGarner%2C+R+C%3BTurteltaub%2C+K+W&rft.aulast=Mauthe&rft.aufirst=R&rft.date=1999-02-09&rft.volume=80&rft.issue=4&rft.spage=539&rft.isbn=&rft.btitle=&rft.title=International+journal+of+cancer&rft.issn=00207136&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-02-16 N1 - Date created - 1999-02-16 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Elevated frequencies of hypoxanthine phosphoribosyltransferase lymphocyte mutants are detected in Russian liquidators 6 to 10 years after exposure to radiation from the Chernobyl nuclear power plant accident. AN - 69593496; 10029687 AB - This study was conducted to determine whether the frequency of hypoxanthine phosphoribosyltransferase (HPRT) deficient lymphocyte mutants would detect an effect of radiation exposure in a population of Russians who were exposed to low levels of radiation while working in 1986 and 1987 as liquidators cleaning up after the Chernobyl nuclear power reactor accident. The HPRT lymphocyte cloning assay was performed on peripheral blood lymphocytes collected between 1992 and 1996 from 142 liquidators and 66 Russian controls, and between 1989 and 1993 from 231 American controls. Russian and American controls were not significantly different for either cloning efficiency or mutant frequency (MF); inclusion of both sets of controls in the analysis increased the ability to detect a Chernobyl exposure effect in the liquidators. After adjusting for age and smoking, the results revealed no significant difference in cloning efficiency of Chernobyl liquidators relative to Russian controls but a significant, 24% increase in liquidator HPRT mutant frequency over Russian controls (90% confidence interval was 7% to 45% increase). The analytical method also accounted for differences in precision of the individual estimates of log CE and log MF and accommodated for outliers. The increase in HPRT mutant frequency of liquidators is an attribute of the exposed population as a whole rather than of individuals. These results demonstrate that, under appropriate circumstances, the HPRT specific locus mutation assay of peripheral blood lymphocytes can be used to detect a semi-acute, low dose radiation exposure of a population, even 6 to 10 years after the exposure. JF - Mutation research AU - Thomas, C B AU - Nelson, D O AU - Pleshanov, P AU - Vorobstova, I AU - Tureva, L AU - Jensen, R AU - Jones, I M AD - Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, L-452, P.O. Box 808, Livermore, CA 94550, USA. Y1 - 1999/02/02/ PY - 1999 DA - 1999 Feb 02 SP - 105 EP - 119 VL - 439 IS - 1 SN - 0027-5107, 0027-5107 KW - Hypoxanthine Phosphoribosyltransferase KW - EC 2.4.2.8 KW - Index Medicus KW - Occupational Exposure KW - Smoking KW - Regression Analysis KW - Age Factors KW - Radiometry KW - Power Plants KW - Radioactive Hazard Release KW - Humans KW - Ukraine KW - Adult KW - Russia KW - Clone Cells -- metabolism KW - Lymphocytes -- pathology KW - Hypoxanthine Phosphoribosyltransferase -- genetics KW - Lymphocytes -- enzymology KW - Mutation -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69593496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Elevated+frequencies+of+hypoxanthine+phosphoribosyltransferase+lymphocyte+mutants+are+detected+in+Russian+liquidators+6+to+10+years+after+exposure+to+radiation+from+the+Chernobyl+nuclear+power+plant+accident.&rft.au=Thomas%2C+C+B%3BNelson%2C+D+O%3BPleshanov%2C+P%3BVorobstova%2C+I%3BTureva%2C+L%3BJensen%2C+R%3BJones%2C+I+M&rft.aulast=Thomas&rft.aufirst=C&rft.date=1999-02-02&rft.volume=439&rft.issue=1&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-03-29 N1 - Date created - 1999-03-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Cosmogenic nuclides, topography, and the spatial variation of soil depth AN - 51021407; 1999-058916 AB - If the rate of bedrock conversion to a mobile layer of soil depends on the local thickness of soil, then hillslopes on uniform bedrock in a landscape approaching dynamic equilibrium should be mantled by a uniform thickness of soil. Conversely, if the depth of soil varies across an actively eroding landscape, then rates of soil production will also vary and, consequently the landscape will not be in morphologic equilibrium. The slow evolution of hillslopes relative to the tempo of climatic variations and tectonic adjustments would suggest that local morphologic disequilibrium may be expected in many landscapes. Here, we explore this issue of equilibrium landscapes through a previously developed model that predicts the spatial variation in thickness of soil as a consequence of the local balance between soil production and erosion. First, we confirm the assumption in the model that soil production varies inversely with the thickness of soil using two independent methods. One method uses the theoretical prediction that at local steady state (soil production equals removal), the depth of soil should vary inversely with hillslope curvature. The second method relies on direct measurements of in situ produced concentrations of cosmogenic (super 10) Be and (super 26) Al in bedrock at the base of the soil column. For our study site in Northern California, the two methods agree and yield the expression that the rate of soil production declines exponentially with the thickness of soil from 0.077 mm/year with no soil mantle to 0.0077 mm/year under 1 m of soil. We then use this function of soil production in a coupled production and diffusive model of sediment transport to explore the controls on the spatial variation of the depth of soil on four separate spur ridges (noses) where we measured the data for the function of soil production. Model predictions are sensitive to boundary conditions, grid scale, and run time. Nonetheless, we found good agreement between predicted and observed depths of soil as long as we used the observed function of soil production. The four noses each have spatially varying curvature and, consequently, have varying depths of soil, implying morphologic disequilibrium. We suggest that our study site has been subjected to a wave of incision and varying intensities of erosion because of tectonic and climatic oscillations that have a frequency shorter than the morphologic response time of the landscape. JF - Geomorphology AU - Heimsath, Arjun M AU - Dietrich, William E AU - Nishiizumi, Kunihiko AU - Finkel, Robert C A2 - Harbor, J. Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 151 EP - 172 PB - Elsevier, Amsterdam VL - 27 IS - 1-2 SN - 0169-555X, 0169-555X KW - United States KW - methods KW - isotopes KW - erosion KW - slopes KW - cosmogenic elements KW - erosion rates KW - California KW - Al-26 KW - spatial variations KW - topography KW - radioactive isotopes KW - aluminum KW - Marin County California KW - drainage basins KW - thickness KW - Point Bonita Quadrangle KW - applications KW - Northern California KW - soils KW - alkaline earth metals KW - pedogenesis KW - numerical models KW - Be-10 KW - sediment transport KW - landform evolution KW - rates KW - noses KW - equilibrium KW - Tennessee Valley KW - depth KW - measurement KW - models KW - San Francisco Bay region KW - factors KW - metals KW - steady-state processes KW - soil surveys KW - surveys KW - geomorphology KW - landscapes KW - beryllium KW - 23:Geomorphology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51021407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomorphology&rft.atitle=Cosmogenic+nuclides%2C+topography%2C+and+the+spatial+variation+of+soil+depth&rft.au=Heimsath%2C+Arjun+M%3BDietrich%2C+William+E%3BNishiizumi%2C+Kunihiko%3BFinkel%2C+Robert+C&rft.aulast=Heimsath&rft.aufirst=Arjun&rft.date=1999-02-01&rft.volume=27&rft.issue=1-2&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Geomorphology&rft.issn=0169555X&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0169555X 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 - 70 N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; applications; Be-10; beryllium; California; cosmogenic elements; depth; drainage basins; equilibrium; erosion; erosion rates; factors; geomorphology; isotopes; landform evolution; landscapes; Marin County California; measurement; metals; methods; models; Northern California; noses; numerical models; pedogenesis; Point Bonita Quadrangle; radioactive isotopes; rates; San Francisco Bay region; sediment transport; slopes; soil surveys; soils; spatial variations; steady-state processes; surveys; Tennessee Valley; thickness; topography; United States ER - TY - JOUR T1 - Mid-Pleistocene cosmogenic minimum-age limits for pre-Wisconsinan glacial surfaces in southwestern Minnesota and southern Baffin Island; a multiple nuclide approach AN - 51019513; 1999-058909 AB - Paired (super 10) Be and (super 26) Al analyses (n = 14) indicate that pre-Wisconsinan, glaciated bedrock surfaces near the northern (Baffin Island) and southern (Minnesota) paleo-margins of the Laurentide Ice Sheet have long and complex histories of cosmic-ray exposure, including significant periods of partial or complete shielding from cosmic rays. Using the ratio, (super 26) Al/ (super 10) Be, we calculate that striated outcrops of Sioux Quartzite in southwestern Minnesota (southern margin) were last overrun by ice at least 500,000 years ago. Weathered bedrock tors on the once-glaciated uplands of Baffin Island (northern margin) are eroding no faster than 1.1 m Myr (super -1) , the equivalent of at least 450,000 years of surface and near-surface exposure. Our data demonstrate that exposure ages and erosion rates calculated from single nuclides can underestimate surface stability dramatically because any intermittent burial, and the resultant lowering of nuclide production rates and nuclide abundances, will remain undetected. JF - Geomorphology AU - Bierman, Paul R AU - Marsella, Kimberly A AU - Patterson, Carrie AU - Davis, P Thompson AU - Caffee, Marc A2 - Harbor, J. Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 25 EP - 39 PB - Elsevier, Amsterdam VL - 27 IS - 1-2 SN - 0169-555X, 0169-555X KW - United States KW - relative age KW - Cumberland Peninsula KW - Laurentide ice sheet KW - isotopes KW - erosion KW - middle Pleistocene KW - cosmogenic elements KW - erosion rates KW - exposure age KW - Cenozoic KW - Al-26 KW - radioactive isotopes KW - geochronology KW - aluminum KW - weathered materials KW - Nunavut KW - particle-track dating KW - Baffin Island KW - Pipestone County Minnesota KW - Franklin District Northwest Territories KW - Sioux Quartzite KW - North America KW - Minnesota KW - alkaline earth metals KW - southwestern Minnesota KW - Al/Be KW - Quaternary KW - Precambrian KW - Be-10 KW - tors KW - Pangnirtung Fiord KW - rates KW - weathering KW - Northwest Territories KW - burial age KW - Canada KW - metals KW - Rock County Minnesota KW - Pleistocene KW - Western Canada KW - glacial geology KW - geomorphology KW - Eastern Canada KW - beryllium KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51019513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomorphology&rft.atitle=Mid-Pleistocene+cosmogenic+minimum-age+limits+for+pre-Wisconsinan+glacial+surfaces+in+southwestern+Minnesota+and+southern+Baffin+Island%3B+a+multiple+nuclide+approach&rft.au=Bierman%2C+Paul+R%3BMarsella%2C+Kimberly+A%3BPatterson%2C+Carrie%3BDavis%2C+P+Thompson%3BCaffee%2C+Marc&rft.aulast=Bierman&rft.aufirst=Paul&rft.date=1999-02-01&rft.volume=27&rft.issue=1-2&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Geomorphology&rft.issn=0169555X&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0169555X 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 - 31 N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Al-26; Al/Be; alkaline earth metals; aluminum; Baffin Island; Be-10; beryllium; burial age; Canada; Cenozoic; cosmogenic elements; Cumberland Peninsula; Eastern Canada; erosion; erosion rates; exposure age; Franklin District Northwest Territories; geochronology; geomorphology; glacial geology; isotopes; Laurentide ice sheet; metals; middle Pleistocene; Minnesota; North America; Northwest Territories; Nunavut; Pangnirtung Fiord; particle-track dating; Pipestone County Minnesota; Pleistocene; Precambrian; Quaternary; radioactive isotopes; rates; relative age; Rock County Minnesota; Sioux Quartzite; southwestern Minnesota; tors; United States; weathered materials; weathering; Western Canada ER - TY - JOUR T1 - Dating fluvial terraces with (super 10) Be and (super 26) Al profiles; application to the Wind River, Wyoming AN - 51016419; 1999-058910 AB - Fluvial strath terraces provide a record of river incision and the timing of climatic perturbations to the fluvial system. Dating depositional surfaces like terraces that are older than the range of (super 14) C, however, is difficult. We employ a cosmogenic radionuclide (CRN) profile technique that addresses a major problem of CRN dating on such surfaces: nuclide inheritance. By measuring (super 10) Be and (super 26) Al profiles, we constrain the exposure age and the mean CRN inheritance for the deposit. The CRN profile also yields a self-check on the assumptions underlying the method. We report our attempts to date terraces along the Wind River, WY. Like many sequences of western North American fluvial terraces, these are inferred to reflect oscillation between glacial and interglacial conditions in the headwaters. Previous dating of some of these terraces and the associated terraces and glacial deposits makes this a unique location to compare dating methods. Dates from five sites along the Bull Lake-glacial correlative terrace (WR-3) are approximately 118-125 ka, which agrees with dates on Bull Lake-age moraines and independent age estimates on the terrace, and is consistent with the model of terrace-glacial relationship. CRN inheritance is significant and highly variable, requiring it be considered despite the additional sampling complexity. Assuming all inheritance in WR-3 deposits arises during exhumation in the headwaters, we obtain minimum mean rates of exhumation of approximately 13-130 m/My for the source rocks. Alternatively, assuming the CRNs are inherited during clast transport, the time of fluvial transport from source to terrace is > approximately 10 ka; it increases downstream and is lower for sand than cobbles. The CRN ages for older terraces (WR-7 = approximately 300 ka and WR-15 = approximately 510 ka) are lower by approximately 50% than previous estimates based on tephrochronology; the most plausible explanation is eolian deflation of a once thicker loess cover on the terrace surfaces. Mean thicknesses of loess of approximately 0.5-1.5 m are required to reconcile these concentrations of CRN with the previous estimates of age. Difficulty in dating the older terraces emphasizes that geologic caution, independent estimates of age, and multiple sample sites should still be part of dating depositional surfaces with CRNs, even when employing the inheritance-correction technique. JF - Geomorphology AU - Hancock, Gregory S AU - Anderson, Robert S AU - Chadwick, Oliver A AU - Finkel, Robert C A2 - Harbor, J. Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 41 EP - 60 PB - Elsevier, Amsterdam VL - 27 IS - 1-2 SN - 0169-555X, 0169-555X KW - United States KW - silicates KW - relative age KW - glaciation KW - silica minerals KW - isotopes KW - cosmogenic elements KW - terraces KW - exposure age KW - upper Pleistocene KW - strath terraces KW - Cenozoic KW - Al-26 KW - radioactive isotopes KW - geochronology KW - Wind River KW - transport KW - aluminum KW - exhumation KW - framework silicates KW - North America KW - alkaline earth metals KW - Quaternary KW - Be-10 KW - clasts KW - Wyoming KW - Wind River basin KW - metals KW - upper Quaternary KW - fluvial features KW - quartz KW - Pleistocene KW - glacial geology KW - geomorphology KW - corrections KW - beryllium KW - Bull Lake Glaciation KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51016419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomorphology&rft.atitle=Dating+fluvial+terraces+with+%28super+10%29+Be+and+%28super+26%29+Al+profiles%3B+application+to+the+Wind+River%2C+Wyoming&rft.au=Hancock%2C+Gregory+S%3BAnderson%2C+Robert+S%3BChadwick%2C+Oliver+A%3BFinkel%2C+Robert+C&rft.aulast=Hancock&rft.aufirst=Gregory&rft.date=1999-02-01&rft.volume=27&rft.issue=1-2&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Geomorphology&rft.issn=0169555X&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0169555X 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. 4 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Be-10; beryllium; Bull Lake Glaciation; Cenozoic; clasts; corrections; cosmogenic elements; exhumation; exposure age; fluvial features; framework silicates; geochronology; geomorphology; glacial geology; glaciation; isotopes; metals; North America; Pleistocene; quartz; Quaternary; radioactive isotopes; relative age; silica minerals; silicates; strath terraces; terraces; transport; United States; upper Pleistocene; upper Quaternary; Wind River; Wind River basin; Wyoming ER - TY - JOUR T1 - Estimates of frequency-dependent compressibility from a quasistatic double-porosity model AN - 50415351; 2009-058249 JF - LBNL - Lawrence Berkeley National Laboratory AU - Wang, Herbert F AU - Berryman, J G AU - Berge, P A A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 371 EP - 374 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - hydrology KW - elastic properties KW - matrix KW - sandstone KW - porous materials KW - mathematical models KW - equations KW - elastic constants KW - bulk modulus KW - porosity KW - boundary conditions KW - reservoir rocks KW - sedimentary rocks KW - saturation KW - pore pressure KW - confining pressure KW - clastic rocks KW - compressibility KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50415351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Estimates+of+frequency-dependent+compressibility+from+a+quasistatic+double-porosity+model&rft.au=Wang%2C+Herbert+F%3BBerryman%2C+J+G%3BBerge%2C+P+A&rft.aulast=Wang&rft.aufirst=Herbert&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=371&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 - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - boundary conditions; bulk modulus; clastic rocks; compressibility; confining pressure; elastic constants; elastic properties; equations; hydrology; mathematical models; matrix; pore pressure; porosity; porous materials; reservoir rocks; sandstone; saturation; sedimentary rocks ER - TY - JOUR T1 - Prediction of fracture slip and associated permeability changes in a geologic repository for nuclear waste AN - 50415343; 2009-058238 JF - LBNL - Lawrence Berkeley National Laboratory AU - Berge, P A AU - Blair, S C AU - Wang, Herbert F A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 329 EP - 332 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - United States KW - finite difference analysis KW - fluid dynamics KW - temperature KW - reservoir rocks KW - radioactive waste KW - fractures KW - Yucca Mountain KW - Nevada KW - hydrology KW - high-level waste KW - three-dimensional models KW - thermal properties KW - stress KW - prediction KW - pollution KW - migration of elements KW - Nye County Nevada KW - two-dimensional models KW - models KW - waste disposal KW - underground disposal KW - permeability KW - high temperature KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50415343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Prediction+of+fracture+slip+and+associated+permeability+changes+in+a+geologic+repository+for+nuclear+waste&rft.au=Berge%2C+P+A%3BBlair%2C+S+C%3BWang%2C+Herbert+F&rft.aulast=Berge&rft.aufirst=P&rft.date=1999-02-01&rft.volume=&rft.issue=&rft.spage=329&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 - 11 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #04577 N1 - SubjectsTermNotLitGenreText - finite difference analysis; fluid dynamics; fractures; high temperature; high-level waste; hydrology; migration of elements; models; Nevada; Nye County Nevada; permeability; pollution; prediction; radioactive waste; reservoir rocks; stress; temperature; thermal properties; three-dimensional models; two-dimensional models; underground disposal; United States; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Correlation of mineral and porosity distribution at the sub-millimeter scale, and its implications for reactive transport simulations AN - 50414896; 2009-058215 JF - LBNL - Lawrence Berkeley National Laboratory AU - Glassley, William E AU - Simmons, Ardyth AU - Lamble, Geraldine M A2 - Faybishenko, Boris Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 244 EP - 246 PB - University of California, Lawrence Berkeley National Laboratory, Berkeley, CA KW - sorption KW - volcanic rocks KW - igneous rocks KW - fluid dynamics KW - simulation KW - reservoir rocks KW - ground water KW - spatial distribution KW - mineral composition KW - chemical reactions KW - tracers KW - reactive transport KW - tuff KW - concentration KW - numerical models KW - pollutants KW - matrix KW - grain size KW - pollution KW - porous materials KW - porosity KW - aquifers KW - pyroclastics KW - permeability KW - homogeneous materials KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50414896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Gold+Bugs+Are+Puzzled+By+This+Risky+Business&rft.au=Hoyle%2C+Rhiannon&rft.aulast=Hoyle&rft.aufirst=Rhiannon&rft.date=2011-11-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&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 - aquifers; chemical reactions; concentration; fluid dynamics; grain size; ground water; homogeneous materials; igneous rocks; matrix; mineral composition; numerical models; permeability; pollutants; pollution; porosity; porous materials; pyroclastics; reactive transport; reservoir rocks; simulation; sorption; spatial distribution; tracers; tuff; volcanic rocks 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 - Melting depths and mantle heterogeneity beneath Hawaii and the East Pacific Rise; constraints from Na/Ti and rare earth element ratios AN - 50162789; 1999-033930 AB - Mantle melting calculations are presented that place constraints on the mineralogy of the basalt source region and partial melting depths for oceanic basalts. Melting depths are obtained from pressure-sensitive mineral-melt partition coefficients for Na, Ti, Hf, and the rare earth elements (REE). Melting depths are estimated by comparing model aggregate melt compositions to natural basalts from Hawaii and the East Pacific Rise (EPR). Variations in melting depths in a peridotite mantle are sufficient to yield observed differences in Na/Ti, Lu/Hf, and Sm/Yb between Hawaii and the EPR. Initial melting depths of 95-120 km are calculated for EPR basalts, while melting depths of 200-400 km are calculated for Hawaii, indicating a mantle that is 300 degrees C hotter at Hawaii. Some isotope ratios at Hawaii are correlated with Na/Ti, indicating vertical stratification to isotopic heterogeneity in the mantle; similar comparisons involving EPR lavas support a layered mantle model. Abundances of Na, Ti, and REE indicate that garnet pyroxenite and eclogite are unlikely source components at Hawaii and may be unnecessary at the EPR. The result that some geochemical features of oceanic lavas appear to require only minor variations in mantle mineral proportions (2% or less) may have important implications regarding the efficiency of mantle mixing. Heterogeneity required by isotopic studies might be accompanied by only subtle differences in bulk composition, and material that is recycled at subduction zones might not persist as mineralogically distinct mantle components. Copyright 1999 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Putirka, Keith Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 2817 EP - 2829 PB - American Geophysical Union, Washington, DC VL - 104 IS - B2 SN - 0148-0227, 0148-0227 KW - United States KW - volcanic rocks KW - igneous rocks KW - partial melting KW - mantle KW - temperature KW - Lu/Hf KW - mineral composition KW - melting KW - metamorphic rocks KW - basalts KW - rare earths KW - heterogeneity KW - chemical composition KW - chemical ratios KW - East Pacific KW - Hawaii KW - East Pacific Ocean Islands KW - depth KW - metals KW - Pacific Ocean KW - Oceania KW - Polynesia KW - East Pacific Rise KW - high temperature KW - eclogite KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50162789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Melting+depths+and+mantle+heterogeneity+beneath+Hawaii+and+the+East+Pacific+Rise%3B+constraints+from+Na%2FTi+and+rare+earth+element+ratios&rft.au=Putirka%2C+Keith&rft.aulast=Putirka&rft.aufirst=Keith&rft.date=1999-02-01&rft.volume=104&rft.issue=B2&rft.spage=2817&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F1998JB900048 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 - 110 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - basalts; chemical composition; chemical ratios; depth; East Pacific; East Pacific Ocean Islands; East Pacific Rise; eclogite; Hawaii; heterogeneity; high temperature; igneous rocks; Lu/Hf; mantle; melting; metals; metamorphic rocks; mineral composition; Oceania; Pacific Ocean; partial melting; Polynesia; rare earths; temperature; United States; volcanic rocks DO - http://dx.doi.org/10.1029/1998JB900048 ER - TY - JOUR T1 - Edades de cosmonuclideos (super 10) Be y (super 26) Al en avalanchas de rocas de la Sierra de San Luis; implicancias paleosismologicas TT - Age of cosmonuclide (super 10) Be and (super 26) Al in rock avalanches of the Sierra de San Luis; paleoseimologic implications AN - 916839119; 2012-012978 JF - Actas del Congreso Geologico Argentino AU - Gonzalez Diaz, Emilio F AU - Costa, Carlos H AU - Giaccardi, Aldo D AU - Bierman, Paul E AU - Caffee, Marc AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 81 EP - 82 PB - Asociacion Geologica Argentina, Buenos Aires VL - 14 IS - 1 SN - 0325-2620, 0325-2620 KW - alkaline earth metals KW - paleoseismicity KW - Quaternary KW - Be-10 KW - isotopes KW - Sierra de San Luis KW - Cenozoic KW - avalanches KW - landslides KW - Al-26 KW - radioactive isotopes KW - geochronology KW - seismicity KW - metals KW - aluminum KW - seismic risk KW - mass movements KW - absolute age KW - Pleistocene KW - beryllium KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916839119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Actas+del+Congreso+Geologico+Argentino&rft.atitle=Edades+de+cosmonuclideos+%28super+10%29+Be+y+%28super+26%29+Al+en+avalanchas+de+rocas+de+la+Sierra+de+San+Luis%3B+implicancias+paleosismologicas&rft.au=Gonzalez+Diaz%2C+Emilio+F%3BCosta%2C+Carlos+H%3BGiaccardi%2C+Aldo+D%3BBierman%2C+Paul+E%3BCaffee%2C+Marc%3BAnonymous&rft.aulast=Gonzalez+Diaz&rft.aufirst=Emilio&rft.date=1999-01-01&rft.volume=14&rft.issue=1&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Actas+del+Congreso+Geologico+Argentino&rft.issn=03252620&rft_id=info:doi/ LA - Spanish DB - GeoRef N1 - Conference title - XIV congreso geologico argentino N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Al-26; alkaline earth metals; aluminum; avalanches; Be-10; beryllium; Cenozoic; geochronology; isotopes; landslides; mass movements; metals; paleoseismicity; Pleistocene; Quaternary; radioactive isotopes; seismic risk; seismicity; Sierra de San Luis 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 - Influence of microstructural properties on geophysical measurements in sand-clay mixtures AN - 911677972; 2012-005832 AB - We have performed a series of laboratory experiments on saturated sand-clay mixtures. Measurements include frequency-dependent electrical properties using the four-electrode technique (10 mHz to 1 MHz), permeability, porosity, and acoustic velocities. We mixed clean quartz sand with Na-montmorillonite in a number of different configurations containing 0 to 10% clay: as a dispersed mixture, as discrete clay clusters, and arranged in distinct layers. Solutions of CaCl2 ranging from 0.0005 N to 0.75 N (0.05 to 64 mS/cm) and deionized water were used as saturating fluids. We found the electrical properties to be dependent on clay content, fluid conductivity, and microstructure in a complex fashion. Increasing fluid conductivity and increasing clay content generally resulted in higher electrical conductivity. For an individual sample, two main regions of conduction exist: a region dominated by surface conduction and a region where the ionic strength of the saturating fluid controlled conduction. The sample geometry (dispersed, non-dispersed, or layered clay configuration) was found to greatly affect the magnitude of the surface conductance in the range of low fluid conductivity. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Wildenschild, Dorthe AU - Roberts, J J AU - Carlberg, Eric D AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 461 EP - 464 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - United States KW - silicates KW - clay KW - electrical conductivity KW - fluid phase KW - laboratory studies KW - sedimentary rocks KW - sediments KW - montmorillonite KW - sand KW - experimental studies KW - electrical properties KW - bentonite KW - clastic sediments KW - geophysical methods KW - electrical methods KW - properties KW - measurement KW - geometry KW - clay minerals KW - Wyoming KW - sample preparation KW - physical properties KW - saturation KW - mathematical methods KW - sheet silicates KW - clastic rocks KW - permeability KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911677972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Influence+of+microstructural+properties+on+geophysical+measurements+in+sand-clay+mixtures&rft.au=Wildenschild%2C+Dorthe%3BRoberts%2C+J+J%3BCarlberg%2C+Eric+D%3BAnonymous&rft.aulast=Wildenschild&rft.aufirst=Dorthe&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=461&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1821053 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. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bentonite; clastic rocks; clastic sediments; clay; clay minerals; electrical conductivity; electrical methods; electrical properties; experimental studies; fluid phase; geometry; geophysical methods; laboratory studies; mathematical methods; measurement; montmorillonite; permeability; physical properties; properties; sample preparation; sand; saturation; sedimentary rocks; sediments; sheet silicates; silicates; United States; Wyoming DO - http://dx.doi.org/10.1190/1.1821053 ER - TY - JOUR T1 - Advances in crosswell electromagnetics; steel-cased boreholes AN - 911675663; 2012-005795 AB - The Crosswell electromagnetic (EM) induction technique ideally measures the resistivity distribution between boreholes which may often be cased with carbon steel. Quantification of the effect of such steel casing on the induced field is the most significant limitation of the technique. Recent data acquired at a site in Richmond, California quantify the effect of steel casing on induction measurements and demonstrate this effect to be separable. This unique site contains adjacent steel and plastic wells in which frequency soundings demonstrate low spectrum (1.0 - 50 Hz) measurements an effective means of isolating the casing response from the formation response. It is also shown that the steel casing effect on the induction coil is highly localized, and limited to less than 0.30 meters above and below the coil. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Kirkendall, Barry AU - Harben, P AU - Lewis, Pat AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 323 EP - 326 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - United States KW - Richmond Field Station KW - electrodes KW - electrical conductivity KW - crosshole methods KW - well-logging KW - geophysical methods KW - mapping KW - steel KW - Richmond California KW - magnetic properties KW - exploration KW - California KW - boreholes KW - electromagnetic methods KW - Contra Costa County California KW - permeability KW - electromagnetic induction KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Advances+in+crosswell+electromagnetics%3B+steel-cased+boreholes&rft.au=Kirkendall%2C+Barry%3BHarben%2C+P%3BLewis%2C+Pat%3BAnonymous&rft.aulast=Kirkendall&rft.aufirst=Barry&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1821012 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 - 4 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boreholes; California; Contra Costa County California; crosshole methods; electrical conductivity; electrodes; electromagnetic induction; electromagnetic methods; exploration; geophysical methods; magnetic properties; mapping; permeability; Richmond California; Richmond Field Station; steel; United States; well-logging DO - http://dx.doi.org/10.1190/1.1821012 ER - TY - JOUR T1 - Array TDEM survey in Dixie Valley, Nevada AN - 911675656; 2012-005788 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Mogi, Toru AU - Jomori, Akira AU - Lippert, Donald R AU - Clyde, John AU - Rock, Donald AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 295 EP - 298 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - United States KW - Churchill County Nevada KW - geophysical surveys KW - Basin and Range Province KW - magnetometers KW - extension tectonics KW - magnetic field KW - Dixie Valley KW - exploration KW - Cenozoic KW - gravity methods KW - geothermal systems KW - electromagnetic methods KW - tectonics KW - Nevada KW - faults KW - transient methods KW - North America KW - geophysical methods KW - magnetic methods KW - anomalies KW - resistivity KW - seismic methods KW - measurement KW - geothermal energy KW - LOTEM KW - surveys KW - instruments 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/911675656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Array+TDEM+survey+in+Dixie+Valley%2C+Nevada&rft.au=Mogi%2C+Toru%3BJomori%2C+Akira%3BLippert%2C+Donald+R%3BClyde%2C+John%3BRock%2C+Donald%3BAnonymous&rft.aulast=Mogi&rft.aufirst=Toru&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1821004 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. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anomalies; Basin and Range Province; Cenozoic; Churchill County Nevada; Dixie Valley; electromagnetic methods; exploration; extension tectonics; faults; geophysical methods; geophysical surveys; geothermal energy; geothermal systems; gravity methods; instruments; LOTEM; magnetic field; magnetic methods; magnetometers; measurement; Nevada; North America; resistivity; seismic methods; surveys; tectonics; transient methods; United States DO - http://dx.doi.org/10.1190/1.1821004 ER - TY - JOUR T1 - 3-D elastic modeling of VSP surveys in the Gulf of Mexico AN - 911675649; 2012-005770 AB - 3D finite difference elastic modeling has been applied to simulate elastic wave propagation in a VSP survey over a field in the Gulf of Mexico. Several features in the elastic modeling code implemented on a massive parallel computer have been enhanced for realistic simulation of elastic waves in large geological models. Based on a velocity model derived from horizon-based pre-stack depth migration velocity analysis, multi-component synthetic seismograms have been generated. The synthetics resemble the field observations in terms of the arrival times of many coherent events including strong converted waves and differential waveform characteristics exhibited in the vertical and horizontal components, respectively. Many of these coherent arrivals can be identified through observation of the time-lapse snapshots of the velocity/stress distribution in a grid volume. Comparison of the synthetic and observed VSP gathers reveals the effects of the complex subsurface media on elastic wave propagation. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Liu, W AU - Wyatt, Kay D AU - Larsen, S C AU - Cook, A C AU - Grieger, John C AU - Valasek, Paul A AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 224 EP - 227 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - petroleum exploration KW - seismic profiles KW - geophysical surveys KW - three-dimensional models KW - salt domes KW - offshore KW - geophysical methods KW - data processing KW - petroleum KW - elastic waves KW - simulation KW - seismic migration KW - oil and gas fields KW - Gulf of Mexico KW - seismic methods KW - vertical seismic profiles KW - surveys KW - propagation KW - geophysical profiles KW - North Atlantic KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=3-D+elastic+modeling+of+VSP+surveys+in+the+Gulf+of+Mexico&rft.au=Liu%2C+W%3BWyatt%2C+Kay+D%3BLarsen%2C+S+C%3BCook%2C+A+C%3BGrieger%2C+John+C%3BValasek%2C+Paul+A%3BAnonymous&rft.aulast=Liu&rft.aufirst=W&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=224&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1820985 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 - 4 N1 - PubXState - OK N1 - Document feature - illus. incl. sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; data processing; elastic waves; geophysical methods; geophysical profiles; geophysical surveys; Gulf of Mexico; North Atlantic; offshore; oil and gas fields; petroleum; petroleum exploration; propagation; salt domes; seismic methods; seismic migration; seismic profiles; simulation; surveys; three-dimensional models; vertical seismic profiles DO - http://dx.doi.org/10.1190/1.1820985 ER - TY - JOUR T1 - Electrical resistance tomography using steel-cased boreholes as electrodes AN - 911675289; 2012-005796 AB - Electrical resistance tomography (ERT) using multiple electrodes installed in boreholes has been shown to be useful for both site characterization and process monitoring. In some cases, however, installing multiple downhole electrodes is too costly (e.g., deep targets) or risky (e.g., contaminated sites). For these cases we have examined the possibility of using the steel casings of existing boreholes as electrodes. The first case we investigated used an array of steel casings as electrodes. This results in very few data and thus requires additional constraints to limit the domain of possible inverse solutions. Simulations indicate that the spatial resolution and sensitivity are understandably low but it is possible to coarsely map the lateral extent of subsurface processes such as steam floods. A hybrid case uses traditional point electrode arrays combined with long-conductor electrodes (steel casings). Although this arrangement provides more data, in many cases it results in poor reconstructions of test targets. Results indicate that this method may hold promise for low resolution imaging where steel casings can be used as electrodes. JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Newmark, Robin L AU - Daily, W AU - Ramirez, A AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 327 EP - 330 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - tomography KW - electrodes KW - imagery KW - crosshole methods KW - well-logging KW - geophysical methods KW - electrical methods KW - mapping KW - fluid phase KW - steel KW - resistivity KW - simulation KW - ground water KW - models KW - environmental management KW - boreholes KW - movement KW - arrays KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Electrical+resistance+tomography+using+steel-cased+boreholes+as+electrodes&rft.au=Newmark%2C+Robin+L%3BDaily%2C+W%3BRamirez%2C+A%3BAnonymous&rft.aulast=Newmark&rft.aufirst=Robin&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1821013 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. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arrays; boreholes; crosshole methods; electrical methods; electrodes; environmental management; fluid phase; geophysical methods; ground water; imagery; mapping; models; movement; resistivity; simulation; steel; tomography; well-logging DO - http://dx.doi.org/10.1190/1.1821013 ER - TY - JOUR T1 - Role of lambda diagrams in estimating porosity and saturation from seismic velocities AN - 911675277; 2012-005758 JF - SEG Annual Meeting Expanded Technical Program Abstracts with Biographies AU - Berryman, J G AU - Berge, P A AU - Bonner, B P AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 176 EP - 179 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 69 SN - 1052-3812, 1052-3812 KW - petroleum exploration KW - P-waves KW - body waves KW - density KW - elastic properties KW - well-logging KW - geophysical methods KW - petroleum KW - fluid phase KW - elastic waves KW - correlation KW - porosity KW - seismic methods KW - reservoir rocks KW - models KW - Gassmann equation KW - saturation KW - velocity KW - reservoir properties KW - propagation KW - seismic waves KW - S-waves KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Role+of+lambda+diagrams+in+estimating+porosity+and+saturation+from+seismic+velocities&rft.au=Berryman%2C+J+G%3BBerge%2C+P+A%3BBonner%2C+B+P%3BAnonymous&rft.aulast=Berryman&rft.aufirst=J&rft.date=1999-01-01&rft.volume=69&rft.issue=&rft.spage=176&rft.isbn=&rft.btitle=&rft.title=SEG+Annual+Meeting+Expanded+Technical+Program+Abstracts+with+Biographies&rft.issn=10523812&rft_id=info:doi/10.1190%2F1.1820880 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 - body waves; correlation; density; elastic properties; elastic waves; fluid phase; Gassmann equation; geophysical methods; models; P-waves; petroleum; petroleum exploration; porosity; propagation; reservoir properties; reservoir rocks; S-waves; saturation; seismic methods; seismic waves; velocity; well-logging DO - http://dx.doi.org/10.1190/1.1820880 ER - TY - JOUR T1 - Food heating and the formation of heterocyclic aromatic amine and polycyclic aromatic hydrocarbon mutagens/carcinogens. AN - 69768418; 10335376 AB - Heterocyclic aromatic amines (HAA) and polycyclic aromatic hydrocarbons (PAH) are mutagens and animal carcinogens sometimes formed when foods are heated or processed. Determining their role in cancer etiology depends on comparing human exposures and determining any significant dose-related effects. Chemical analysis of foods shows that flame-grilling can form both PAH and HAA, and that frying forms predominantly HAA. With detection limits of about 0.1 ng/g, amounts found in commercially processed or restaurant foods range from 0.1 to 14 ng/g for HAA, and levels of PAH up to 1 ng/g in a liquid smoke flavoring. Laboratory fried samples have greater amounts of PAH, up to 38 ng/g in hamburgers, and high levels of HAA, over 300 ng/g, are measured in grilled chicken breast. Understanding the processing conditions that form PAH and HAA can lead to methods to greatly reduce their occurrence in processed foods. JF - Advances in experimental medicine and biology AU - Knize, M G AU - Salmon, C P AU - Pais, P AU - Felton, J S AD - Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, University of California, Livermore 94551-9900, USA. Y1 - 1999 PY - 1999 DA - 1999 SP - 179 EP - 193 VL - 459 SN - 0065-2598, 0065-2598 KW - Amines KW - 0 KW - Benz(a)Anthracenes KW - Benzopyrenes KW - Hydrocarbons, Aromatic KW - Mutagens KW - Index Medicus KW - Swine KW - Animals KW - Benzopyrenes -- analysis KW - Benz(a)Anthracenes -- chemistry KW - Chromatography, High Pressure Liquid KW - Risk Assessment KW - Benzopyrenes -- chemistry KW - Rats KW - Hot Temperature KW - Cattle KW - Chickens KW - Mutagenicity Tests KW - Microwaves KW - Benz(a)Anthracenes -- analysis KW - Amines -- analysis KW - Hydrocarbons, Aromatic -- analysis KW - Hydrocarbons, Aromatic -- chemistry KW - Mutagens -- analysis KW - Meat Products KW - Cooking -- methods KW - Amines -- chemistry KW - Mutagens -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69768418?accountid=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=Advances+in+experimental+medicine+and+biology&rft.atitle=Food+heating+and+the+formation+of+heterocyclic+aromatic+amine+and+polycyclic+aromatic+hydrocarbon+mutagens%2Fcarcinogens.&rft.au=Knize%2C+M+G%3BSalmon%2C+C+P%3BPais%2C+P%3BFelton%2C+J+S&rft.aulast=Knize&rft.aufirst=M&rft.date=1999-01-01&rft.volume=459&rft.issue=&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Advances+in+experimental+medicine+and+biology&rft.issn=00652598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-07-21 N1 - Date created - 1999-07-21 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Numerical and structural chromosomal abnormalities detected in human sperm with a combination of multicolor FISH assays. AN - 69594072; 10037323 AB - A pair of multicolor FISH assays (X-Y-21 and A-M-16) was developed for human sperm to simultaneously measure sex ratios; aneuploidies involving chromosomes 1, 16, 21, X, and Y; meiotic diploidies; and structural aberrations involving chromosome 1p. Sex ratios in sperm were not significantly different from unity among healthy men. Baseline frequencies of disomic sperm for chromosomes 1, 8, and 21 were similar (6.7 per 10(4) sperm, 95% CI of 5.6-8.1), suggesting that among these three chromosomes, chromosome 21 was not especially prone to nondisjunction. Frequencies of disomy 16 sperm were significantly lower, however (3.5 per 10(4) sperm, 95% CI of 2.0-6.2; P < 0.02). The baseline frequencies of sperm disomy by FISH for chromosomes 16 and 21 were validated against aneuploidy data obtained by the hamster-egg technique for human sperm cytogenetics. The frequencies of X-X, Y-Y, X-Y ("Klinefelter") sperm and sex-null ("Turner") sperm were 5.5, 5.1, 5.5, and 7.8 per 10(4) sperm, respectively. For chromosomes 16 and 21, the frequencies of nullisomic and disomic sperm were similar, suggesting that gain and loss events occurred symmetrically. However, more gain than loss was reported for chromosomes 1, X, and Y. The frequency of MI and MII diploid sperm (with flagella) was approximately 12 per 10(4) (range 8.3-16.7 per 10(4) sperm). Based on flagella data, the frequency of somatic cells in the semen was estimated to be approximately 1.8 per 10(4) sperm. Loss or gain of a portion of chromosome-arm 1p occurred in 5.5 per 10(4) sperm, and the percentage of sperm carrying structural aberrations within the haploid genome as calculated from FISH (1.4%), was similar to that obtained with the hamster-egg technique. These complementary sperm FISH assays have promising applications in studies of chromosomally abnormal sperm after exposure to occupational, medical, and environmental toxicants. JF - Environmental and molecular mutagenesis AU - Baumgartner, A AU - Van Hummelen, P AU - Lowe, X R AU - Adler, I D AU - Wyrobek, A J AD - Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, California 94550, USA. Y1 - 1999 PY - 1999 DA - 1999 SP - 49 EP - 58 VL - 33 IS - 1 SN - 0893-6692, 0893-6692 KW - Index Medicus KW - Ovum -- chemistry KW - Animals KW - Chromosomes, Human, Pair 1 -- genetics KW - Aneuploidy KW - Reproducibility of Results KW - Humans KW - Chromosome Disorders KW - Chromosomes, Human, Pair 8 -- genetics KW - Chromosomes, Human, Pair 21 -- genetics KW - Haploidy KW - Adult KW - Middle Aged KW - Male KW - Chromosomes, Human, Pair 16 -- genetics KW - Cricetinae KW - Cytogenetics KW - Diploidy KW - Chromosome Aberrations -- genetics KW - Chromosome Aberrations -- diagnosis KW - Spermatozoa -- pathology KW - In Situ Hybridization, Fluorescence -- methods KW - Chromosome Aberrations -- pathology KW - Spermatozoa -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69594072?accountid=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+and+molecular+mutagenesis&rft.atitle=Numerical+and+structural+chromosomal+abnormalities+detected+in+human+sperm+with+a+combination+of+multicolor+FISH+assays.&rft.au=Baumgartner%2C+A%3BVan+Hummelen%2C+P%3BLowe%2C+X+R%3BAdler%2C+I+D%3BWyrobek%2C+A+J&rft.aulast=Baumgartner&rft.aufirst=A&rft.date=1999-01-01&rft.volume=33&rft.issue=1&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Environmental+and+molecular+mutagenesis&rft.issn=08936692&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-03-04 N1 - Date created - 1999-03-04 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Theoretical and experimental tests of a chromosomal fingerprint for densely ionizing radiation based on F ratios calculated from stable and unstable chromosome aberrations. AN - 69571462; 9973089 AB - In the present study, F ratios for both stable chromosome aberrations, i.e. ratios of translocations to pericentric inversions, and unstable aberrations, i.e. dicentrics and centric rings, were measured using fluorescence in situ hybridization. F ratios for stable aberrations measured after exposure to low (2.89 Gy 60Co gamma rays) and high-LET (0.25 Gy 56Fe ions; 1.25 Gy 56Fe ions; 3.0 Gy 12C ions) radiation were 6.5 +/- 1.5, 4.7 +/- 1.6, 9.3 +/- 2.5 and 10.4 +/- 3.0, respectively. F ratios for unstable aberrations measured after low (2.89 Gy 60Co gamma rays) and high-LET (0.25 Gy 56Fe ions; 3.0 Gy 12C ions) radiations were 6.5 +/- 1.6, 6.3 +/- 2.3 and 11.1 +/- 3.7, respectively. No significant difference between the F ratios for low- and high-LET radiation was found. Further tests on the models for calculation of the F ratio proposed by Brenner and Sachs (Radiat. Res. 140, 134-142, 1994) showed that the F ratio may not be straightforward as a practical fingerprint for densely ionizing radiation. JF - Radiation research AU - Lucas, J N AU - Deng, W AU - Oram, S W AU - Hill, F S AU - Durante, M AU - George, K AU - Wu, H AU - Owens, C L AU - Yang, T AD - University of California, Lawrence Livermore National Laboratory, Livermore 94550, USA. Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 85 EP - 91 VL - 151 IS - 1 SN - 0033-7587, 0033-7587 KW - Index Medicus KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Center JSC KW - Cells, Cultured KW - Humans KW - Lymphocytes -- radiation effects KW - In Situ Hybridization, Fluorescence KW - Lymphocytes -- ultrastructure KW - Dose-Response Relationship, Radiation KW - Linear Energy Transfer KW - Chromosomes, Human -- radiation effects KW - DNA Fingerprinting KW - Chromosome Inversion KW - Translocation, Genetic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69571462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Theoretical+and+experimental+tests+of+a+chromosomal+fingerprint+for+densely+ionizing+radiation+based+on+F+ratios+calculated+from+stable+and+unstable+chromosome+aberrations.&rft.au=Lucas%2C+J+N%3BDeng%2C+W%3BOram%2C+S+W%3BHill%2C+F+S%3BDurante%2C+M%3BGeorge%2C+K%3BWu%2C+H%3BOwens%2C+C+L%3BYang%2C+T&rft.aulast=Lucas&rft.aufirst=J&rft.date=1999-01-01&rft.volume=151&rft.issue=1&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-02-25 N1 - Date created - 1999-02-25 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Risk factors for musculoskeletal disorders among computer users. AN - 69563312; 9950008 AB - This investigation of current epidemiologic and ergonomic research demonstrates consistent relationships between certain computer-related factors and musculoskeletal disorders. JF - Occupational medicine (Philadelphia, Pa.) AU - Tittiranonda, P AU - Burastero, S AU - Rempel, D AD - Interdisciplinary Ergonomics Research Program, Lawrence Livermore National Laboratory, California 94551, USA. PY - 1999 SP - 17 EP - 38, iii VL - 14 IS - 1 SN - 0885-114X, 0885-114X KW - Index Medicus KW - Human Engineering KW - Risk Factors KW - Humans KW - Carpal Tunnel Syndrome -- epidemiology KW - Computers KW - Tendinopathy -- epidemiology KW - Occupational Diseases -- epidemiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69563312?accountid=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=Occupational+medicine+%28Philadelphia%2C+Pa.%29&rft.atitle=Risk+factors+for+musculoskeletal+disorders+among+computer+users.&rft.au=Tittiranonda%2C+P%3BBurastero%2C+S%3BRempel%2C+D&rft.aulast=Tittiranonda&rft.aufirst=P&rft.date=1999-01-01&rft.volume=14&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Occupational+medicine+%28Philadelphia%2C+Pa.%29&rft.issn=0885114X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-04-13 N1 - Date created - 1999-04-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Cadmium concentrations in the testes, sperm, and spermatids of mice subjected to long-term cadmium chloride exposure. AN - 69243238; 10554178 AB - BACKGROUNDExposures to cadmium have been reported to reduce male fertility and there are several hypotheses that suggest how reduced male fertility may result from incorporation of cadmium into sperm chromatin. The purpose of this study was to determine whether mice subjected to long-term intraperitoneal cadmium exposure incorporated cadmium into their sperm chromatin.METHODSMale mice were exposed to 0.1 mg/kg body weight cadmium in the form of CdCl2 via intraperitoneal injection once per week for 4, 10, 26, and 52 weeks and then sacrificed. The cadmium contents of the liver, testes, pooled sperm, and pooled spermatids from dosed and control animals were determined by atomic absorption spectroscopy. Cadmium and zinc contents in individual sperm and spermatid heads were determined by particle-induced x-ray emission.RESULTSAtomic absorption spectroscopy revealed that although cadmium accumulated in the liver and testes, cadmium was not detected in pooled sperm or spermatid samples down to minimum detectable limits of 0.02 microg/g dry weight. Particle-induced x-ray emission analyses did not show the presence of cadmium in any sperm or spermatid head down to minimum detectable limits of 15 microg/g dry weight. Particle-induced x-ray emission analyses also demonstrated that phosphorus, sulfur, and zinc concentrations in individual sperm and spermatid heads were not altered by exposure to CdCl2.CONCLUSIONSBecause cadmium was not incorporated into sperm chromatin at levels above 0.02 microg/g dry weight, the data cast doubt on hypotheses that suggest that reduced male fertility may result from incorporation of cadmium into sperm chromatin. JF - Cytometry AU - Bench, G AU - Corzett, M H AU - Martinelli, R AU - Balhorn, R AD - Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, California 94550, USA. bench1@llnl.gov Y1 - 1999/01/01/ PY - 1999 DA - 1999 Jan 01 SP - 30 EP - 36 VL - 35 IS - 1 SN - 0196-4763, 0196-4763 KW - Chromatin KW - 0 KW - Cadmium KW - 00BH33GNGH KW - Phosphorus KW - 27YLU75U4W KW - Sulfur KW - 70FD1KFU70 KW - Zinc KW - J41CSQ7QDS KW - Cadmium Chloride KW - J6K4F9V3BA KW - Index Medicus KW - Animals KW - Spermatids -- chemistry KW - Chromatin -- metabolism KW - Cadmium Chloride -- adverse effects KW - Mice KW - Spectrophotometry, Atomic KW - Tissue Distribution KW - Infertility, Male -- etiology KW - Zinc -- analysis KW - Environmental Monitoring -- methods KW - Male KW - Phosphorus -- analysis KW - Sulfur -- analysis KW - Cadmium -- analysis KW - Environmental Exposure -- analysis KW - Environmental Exposure -- adverse effects KW - Testis -- chemistry KW - Spermatozoa -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69243238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cytometry&rft.atitle=Cadmium+concentrations+in+the+testes%2C+sperm%2C+and+spermatids+of+mice+subjected+to+long-term+cadmium+chloride+exposure.&rft.au=Bench%2C+G%3BCorzett%2C+M+H%3BMartinelli%2C+R%3BBalhorn%2C+R&rft.aulast=Bench&rft.aufirst=G&rft.date=1999-01-01&rft.volume=35&rft.issue=1&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Cytometry&rft.issn=01964763&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-11-23 N1 - Date created - 1999-11-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - The influence of a Soil-Vegetation-Atmosphere Transfer scheme on the simulated climate of LLNL/UCLA AGCM AN - 52516223; 1999-016071 AB - The sensitivity of the Lawrence Livermore National Laboratory (LLNL)/University of California, Los Angeles (UCLA) Atmospheric General Circulation Model (AGCM) to coupling with a Soil-Vegetation-Atmosphere Transfer (SVAT) scheme is investigated in this paper. The SVAT leads to general warming of the climate over continents in association with enhanced sensible heat fluxes. The wetness bias of AGCM is reduced drastically with reductions in latent heat fluxes and precipitation. There is reduction in cloudiness when the SVAT is coupled which results in increased solar radiation at the surface. Upward long wave radiation increases in association with increases in land surface temperature. Although the coupling of SVAT improves surface fluxes of heat and water vapor, these changes are mainly offset by changes in solar and infrared radiative fluxes. Global mean energy balance at the surface and the top of atmosphere is improved marginally. JF - Global and Planetary Change AU - Govindasamy, B AU - Wehner, M F AU - Mechoso, C R AU - Duffy, P Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 67 EP - 86 PB - Elsevier, Amsterdam VL - 20 IS - 1 SN - 0921-8181, 0921-8181 KW - data processing KW - coupling KW - water vapor KW - global change KW - atmospheric precipitation KW - Soil-Vegetation-Atmosphere Transfer model KW - energy balance KW - temperature KW - SVAT KW - mass balance KW - digital simulation KW - continents KW - academic institutions KW - solar activity KW - global warming KW - clouds KW - programs KW - general circulation models KW - heat flux KW - global KW - LLNL/UCLA model KW - models KW - humidity KW - University of California KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52516223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+and+Planetary+Change&rft.atitle=The+influence+of+a+Soil-Vegetation-Atmosphere+Transfer+scheme+on+the+simulated+climate+of+LLNL%2FUCLA+AGCM&rft.au=Govindasamy%2C+B%3BWehner%2C+M+F%3BMechoso%2C+C+R%3BDuffy%2C+P&rft.aulast=Govindasamy&rft.aufirst=B&rft.date=1999-01-01&rft.volume=20&rft.issue=1&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Global+and+Planetary+Change&rft.issn=09218181&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/09218181 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 - 35 N1 - Document feature - 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - academic institutions; atmospheric precipitation; clouds; continents; coupling; data processing; digital simulation; energy balance; general circulation models; global; global change; global warming; heat flux; humidity; LLNL/UCLA model; mass balance; models; programs; Soil-Vegetation-Atmosphere Transfer model; solar activity; SVAT; temperature; University of California; water vapor 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 - A simple method to separate pollen for AMS radiocarbon dating and its application to lacustrine and marine sediments AN - 52460281; 1999-049441 AB - We present a simple method for manually separating pollen concentrates for radiocarbon accelerator mass spectrometry (AMS) dating using a mouth pipetting system. The required equipment is readily available from scientific equipment supply houses at minimal cost. Pollen samples from lake sediments required about 4 h of hand picking, whereas samples from marine sediments required about 8 h labor. Pollen dates from marine sediments were much older than expected. We are attempting to resolve whether this is due to contamination of the pollen or the presence of significant quantities of old reworked pollen. Pollen dates from lake sediments associated with Mazama Ash were consistent with other published ages; however, replicate dates on pollen samples from above the ash were consistently older than the surrounding sediment. Our results suggest that caution must be used when interpreting pollen dates if the potential for sediment reworking is present. JF - Radiocarbon AU - Mensing, Scott A AU - Southon, John R Y1 - 1999 PY - 1999 DA - 1999 SP - 1 EP - 8 PB - University of Arizona, Department of Geosciences, Tucson, AZ VL - 41 IS - 1 SN - 0033-8222, 0033-8222 KW - United States KW - Sierra Nevada KW - methods KW - isotopes KW - Santa Barbara Basin KW - Holocene KW - Cenozoic KW - California KW - marine sediments KW - radioactive isotopes KW - pollen KW - geochronology KW - dates KW - carbon KW - sediments KW - absolute age KW - miospores KW - accelerator mass spectroscopy KW - Lake Moran KW - Quaternary KW - mass spectroscopy KW - Mazama Ash KW - sample preparation KW - palynomorphs KW - lacustrine environment KW - C-14 KW - spectroscopy KW - microfossils KW - instruments KW - lake sediments KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52460281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiocarbon&rft.atitle=A+simple+method+to+separate+pollen+for+AMS+radiocarbon+dating+and+its+application+to+lacustrine+and+marine+sediments&rft.au=Mensing%2C+Scott+A%3BSouthon%2C+John+R&rft.aulast=Mensing&rft.aufirst=Scott&rft.date=1999-01-01&rft.volume=41&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Radiocarbon&rft.issn=00338222&rft_id=info:doi/ L2 - http://www.radiocarbon.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 30 N1 - PubXState - AZ N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - absolute age; accelerator mass spectroscopy; C-14; California; carbon; Cenozoic; dates; geochronology; Holocene; instruments; isotopes; lacustrine environment; Lake Moran; lake sediments; marine sediments; mass spectroscopy; Mazama Ash; methods; microfossils; miospores; palynomorphs; pollen; Quaternary; radioactive isotopes; sample preparation; Santa Barbara Basin; sediments; Sierra Nevada; spectroscopy; United States ER - TY - JOUR T1 - Geobotanical characterization of a geothermal system using hyperspectral imagery; Long Valley Caldera, CA, USA AN - 52454182; 1999-051306 AB - We have analyzed hyperspectral Airborne Visible-Infrared Imaging System (AVIRIS) imagery taken in September of 1992 in Long Valley Caldera, CA, a geothermally active region expressed surficially by hot springs and fumaroles. Geological and vegetation mapping are attempted through spectral classification of imagery. Particular hot spring areas in the caldera are targeted for analysis. The data is analyzed for unique geobotanical patterns in the vicinity of hot springs as well as gross identification of dominant plant and mineral species. Spectra used for the classifications come from a vegetation spectral library created for plant species found to be associated with geothermal processes. This library takes into account the seasonality of vegetation by including spectra for species on a monthly basis. Geological spectra are taken from JPL and USGS mineral libraries. Preliminary classifications of hot spring areas indicate some success in mineral identification and less successful vegetation species identification. The small spatial extent of individual plants demands either subpixel analysis or increased spatial resolution of imagery. Future work will also include preliminary analysis of a hyperspectral thermal imagery dataset and a multitemporal air photo dataset. The combination of these remotely sensed datasets for Long Valley will yield a valuable product for geothermal exploration efforts in other regions. JF - Proceedings of the Thematic Conference on Geologic Remote Sensing AU - Martini, B A AU - Cochran, S A AU - Potts, D C AU - Silver, E A AU - Pickles, W L AU - Carter, M R AU - Priest, R E AU - Wayne, B M AU - White, W T, III AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 337 EP - 341 PB - Environmental Research Institute of Michigan, Ann Arbor, MI VL - 13 IS - 1 SN - 1067-0106, 1067-0106 KW - United States KW - mineral exploration KW - geobotanical methods KW - imagery KW - Mono County California KW - geophysical methods KW - spectral analysis KW - Long Valley Caldera KW - thermal waters KW - ground water KW - California KW - infrared methods KW - geothermal systems KW - detection KW - AVIRIS KW - springs KW - hot springs KW - spectroscopy KW - remote sensing KW - airborne methods 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/52454182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.atitle=Geobotanical+characterization+of+a+geothermal+system+using+hyperspectral+imagery%3B+Long+Valley+Caldera%2C+CA%2C+USA&rft.au=Martini%2C+B+A%3BCochran%2C+S+A%3BPotts%2C+D+C%3BSilver%2C+E+A%3BPickles%2C+W+L%3BCarter%2C+M+R%3BPriest%2C+R+E%3BWayne%2C+B+M%3BWhite%2C+W+T%2C+III%3BAnonymous&rft.aulast=Martini&rft.aufirst=B&rft.date=1999-01-01&rft.volume=13&rft.issue=1&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.issn=10670106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Thirteenth international conference on Applied geologic remote sensing N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 11 N1 - PubXState - MI N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - airborne methods; AVIRIS; California; detection; geobotanical methods; geophysical methods; geothermal systems; ground water; hot springs; imagery; infrared methods; Long Valley Caldera; mineral exploration; Mono County California; remote sensing; spectral analysis; spectroscopy; springs; thermal waters; United States ER - TY - JOUR T1 - P-T paths from anatectic pelites AN - 52447085; 1999-057610 AB - A petrogenetic grid for partial melting of pelitic rocks in the NCKFMASH system, based on the assumption that the only H (sub 2) O available for melting is through dehydration reaction, is presented. It includes both discontinuous and continuous Fe-Mg reactions; contours of Fe/(Fe + Mg) for continuous reactions define P-T vectors along which continuous melting will occur. For biotite-bearing assemblages (garnet + biotite + sillimanite + K-feldspar + liquid, and garnet + biotite + cordierite + K-feldspar + liquid), Fe/(Fe + Mg) contours have negative gradients; melting occurs with increasing T or P. For biotite-absent assemblages (garnet + cordierite + sillimanite + K-feldspar + liquid, and garnet + cordierite + orthopyroxene + K-feldspar + liquid), Fe/(Fe + Mg) contours have zero gradients; melting occurs only with increasing P. The grid predicts abundant matrix K-feldspar only if rocks are heated at 3.8 kbar, and generation of late biotite + sillimanite replacing garnet, cordierite, or as selvages around leucosomes, is only common in rocks in which melt is not removed. Also there is a predicted field for dehydration melting of staurolite at 5-12 kbar. Textures in migmatities from New Hampshire, USA, suggest that prograde dehydration melting reactions are very nearly completely reversible during cooling and crystallization in rocks in which melt is not removed. Therefore many reaction textures in 'low-grade' migmatites may represent retrograde rather than prograde reactions. JF - Contributions to Mineralogy and Petrology AU - Spear, Frank S AU - Kohn, Matthew J AU - Cheney, John T Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 17 EP - 32 PB - Springer International, Heidelberg-New York VL - 134 IS - 1 SN - 0010-7999, 0010-7999 KW - United States KW - Fall Mountain Nappe KW - retrograde metamorphism KW - textures KW - anatexis KW - partial melting KW - metamorphism KW - paragenesis KW - New Hampshire KW - migmatites KW - metamorphic rocks KW - petrography KW - pelitic texture KW - low-grade metamorphism KW - mineral assemblages KW - dehydration KW - prograde metamorphism KW - Chesham Pond Nappe KW - P-T conditions KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52447085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Contributions+to+Mineralogy+and+Petrology&rft.atitle=P-T+paths+from+anatectic+pelites&rft.au=Spear%2C+Frank+S%3BKohn%2C+Matthew+J%3BCheney%2C+John+T&rft.aulast=Spear&rft.aufirst=Frank&rft.date=1999-01-01&rft.volume=134&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Contributions+to+Mineralogy+and+Petrology&rft.issn=00107999&rft_id=info:doi/10.1007%2Fs004100050466 L2 - http://www.springerlink.com/(zmx2wiu4y01pcgigj5i3jxf5)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100406,1 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 - 50 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - CMPEAP N1 - SubjectsTermNotLitGenreText - anatexis; Chesham Pond Nappe; dehydration; Fall Mountain Nappe; low-grade metamorphism; metamorphic rocks; metamorphism; migmatites; mineral assemblages; New Hampshire; P-T conditions; paragenesis; partial melting; pelitic texture; petrography; prograde metamorphism; retrograde metamorphism; textures; United States DO - http://dx.doi.org/10.1007/s004100050466 ER - TY - JOUR T1 - Isotopic evidence for biological controls on migration of petroleum hydrocarbons AN - 52432896; 1999-066479 JF - Organic Geochemistry AU - Conrad, Mark E AU - Templeton, Alexis S AU - Daley, Paul F AU - Alvarez-Cohen, Lisa AU - Abrajano, Teofilo A, Jr A2 - Lollar, Barbara Sherwood Y1 - 1999 PY - 1999 DA - 1999 SP - 843 EP - 859 PB - Pergamon, Oxford-New York VL - 30 IS - 8A SN - 0146-6380, 0146-6380 KW - United States KW - degradation KW - oxygen KW - contaminant plumes KW - isotopes KW - gas chromatograms KW - aliphatic hydrocarbons KW - mass spectra KW - stable isotopes KW - remediation KW - nitrogen KW - ground water KW - carbon dioxide KW - California KW - controls KW - radioactive isotopes KW - sampling KW - carbon KW - spectra KW - migration KW - biodegradation KW - methane KW - isotope ratios KW - gasoline KW - Central California KW - C-13/C-12 KW - pollution KW - rates KW - alkanes KW - petroleum products KW - bioremediation KW - benzene KW - volatiles KW - organic compounds KW - San Francisco Bay region KW - D/H KW - hydrogen KW - AVGAS KW - volatile organic compounds KW - hydrocarbons KW - C-14 KW - soil gases KW - aromatic hydrocarbons KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52432896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Organic+Geochemistry&rft.atitle=Isotopic+evidence+for+biological+controls+on+migration+of+petroleum+hydrocarbons&rft.au=Conrad%2C+Mark+E%3BTempleton%2C+Alexis+S%3BDaley%2C+Paul+F%3BAlvarez-Cohen%2C+Lisa%3BAbrajano%2C+Teofilo+A%2C+Jr&rft.aulast=Conrad&rft.aufirst=Mark&rft.date=1999-01-01&rft.volume=30&rft.issue=8A&rft.spage=843&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01466380 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aromatic hydrocarbons; AVGAS; benzene; biodegradation; bioremediation; C-13/C-12; C-14; California; carbon; carbon dioxide; Central California; contaminant plumes; controls; D/H; degradation; gas chromatograms; gasoline; ground water; hydrocarbons; hydrogen; isotope ratios; isotopes; mass spectra; methane; migration; nitrogen; organic compounds; oxygen; petroleum products; pollution; radioactive isotopes; rates; remediation; sampling; San Francisco Bay region; soil gases; spectra; stable isotopes; United States; volatile organic compounds; volatiles ER - TY - JOUR T1 - Numerical models are the key to understanding the mechanics of jointed rocks AN - 52425927; 1999-068634 AB - There is much evidence that the mechanics of discontinuous media such as jointed rocks is neither tractable by conventional continuum methods, nor is readily amenable to intuitive analysis. Highlights from four case histories will illustrate the peculiar behavior of rock masses in both quasistatic and dynamic conditions. A brief summary is presented here. JF - Proceedings - Symposium on Rock Mechanics AU - Heuze, F E A2 - Amadei, Bernard A2 - Kranz, Robert L. A2 - Scott, Gregg A. A2 - Smeallie, Peter H. Y1 - 1999 PY - 1999 DA - 1999 SP - 27 EP - 28 PB - A.A. Balkema, [location varies] VL - 37, Vol. 1 SN - 0586-3031, 0586-3031 KW - United States KW - rock masses KW - Climax Mine KW - mining KW - underground mining KW - roof control KW - Riverside California KW - joints KW - rock mechanics KW - radioactive waste KW - Crestmore Mine KW - California KW - fractures KW - discontinuities KW - mining geology KW - shear tests KW - room-and-pillar mining KW - Nevada KW - mines KW - numerical models KW - stress KW - Riverside County California KW - case studies KW - waste disposal KW - underground disposal KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52425927?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+Symposium+on+Rock+Mechanics&rft.atitle=Numerical+models+are+the+key+to+understanding+the+mechanics+of+jointed+rocks&rft.au=Heuze%2C+F+E&rft.aulast=Heuze&rft.aufirst=F&rft.date=1999-01-01&rft.volume=37%2C+Vol.+1&rft.issue=&rft.spage=27&rft.isbn=905809099X&rft.btitle=&rft.title=Proceedings+-+Symposium+on+Rock+Mechanics&rft.issn=05863031&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 37th U. S. rock mechanics symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 7 N1 - Last updated - 2012-06-07 N1 - CODEN - PSRMA6 N1 - SubjectsTermNotLitGenreText - California; case studies; Climax Mine; Crestmore Mine; discontinuities; fractures; joints; mines; mining; mining geology; Nevada; numerical models; radioactive waste; Riverside California; Riverside County California; rock masses; rock mechanics; roof control; room-and-pillar mining; shear tests; stress; underground disposal; underground mining; United States; waste disposal ER - TY - JOUR T1 - Timing of paleoearthquakes on the northern Hayward Fault; preliminary evidence in El Cerrito, California AN - 52402837; 2000-009960 JF - Open-File Report - U. S. Geological Survey AU - Lienkaemper, J J AU - Schwartz, D P AU - Kelson, K I AU - Lettis, William R AU - Simpson, Gary D AU - Southon, J R AU - Wanket, J A AU - Williams, P L Y1 - 1999 PY - 1999 DA - 1999 SP - 34 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - lithostratigraphy KW - paleoseismicity KW - slip rates KW - frequency KW - Holocene KW - Cenozoic KW - California KW - recurrence interval KW - seismicity KW - seismic risk KW - probability KW - USGS KW - Contra Costa County California KW - El Cerrito California KW - trenching KW - Quaternary KW - biostratigraphy KW - statistical analysis KW - San Francisco Bay region KW - earthquake prediction KW - Hayward Fault KW - upper Holocene KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52402837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Timing+of+paleoearthquakes+on+the+northern+Hayward+Fault%3B+preliminary+evidence+in+El+Cerrito%2C+California&rft.au=Lienkaemper%2C+J+J%3BSchwartz%2C+D+P%3BKelson%2C+K+I%3BLettis%2C+William+R%3BSimpson%2C+Gary+D%3BSouthon%2C+J+R%3BWanket%2C+J+A%3BWilliams%2C+P+L&rft.aulast=Lienkaemper&rft.aufirst=J&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/of99-318/ 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 - 31 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. sects., 1 table, sketch maps N1 - Last updated - 2016-09-16 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - biostratigraphy; California; Cenozoic; Contra Costa County California; earthquake prediction; earthquakes; El Cerrito California; frequency; Hayward Fault; Holocene; lithostratigraphy; paleoseismicity; probability; Quaternary; recurrence interval; San Francisco Bay region; seismic risk; seismicity; slip rates; statistical analysis; trenching; United States; upper Holocene; USGS ER - TY - JOUR T1 - Fruitland Formation waters, San Juan Basin, Colorado, and their relevance to understanding Fruitland coalbed methane reservoirs AN - 52391306; 2000-018153 AB - Published descriptions of reservoir dynamics for coalbed methane reservoirs of the Cretaceous Fruitland Formation of the San Juan Basin, New Mexico and Colorado, USA, hypothesize the importance of present day groundwater recharge to maintain a state of hydrodynamic overpressure and to assure that methane generated in the coals will remain adsorbed. Without recharge, hydrodynamic pressures would eventually fall, and methane would desorb and be lost. Recharge is also thought to be responsible for sustaining convergent, upward flow of water on which other hydrodynamic elements of the trap are partially dependent. Our work suggests that the pervasive permeability (cleat) system necessary to sustain this type of hydraulic conductivity does not exist in the Fruitland Formation. Nor do we find evidence for the upward (cross-formational) flow that this model requires. Waters from wells in the Colorado portion of the basin show higher TDS and chloride concentrations closer to outcrop than should be expected if the proposed models are correct. Iodine ( (super 129) I) dating of waters indicates minimum ages of 4 mybp (Pleistocene) to 45 mybp (Eocene). Spatial distributions of these ages and water chemistry suggest significant barriers to down-dip water flow from the outcrop and appear to correlate with patterns in well performance. These data, interpreted in the context of available production data, indicate that at least some portions of the basin contain waters relatively unaffected by outcrop recharge. JF - Annual Meeting Expanded Abstracts - American Association of Petroleum Geologists AU - Riese, W C AU - Franks, S G AU - Fehn, Udo AU - Moran, Jean E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - A116 EP - A117 PB - American Association of Petroleum Geologists and Society of Economic Paleontologists and Mineralogists, Tulsa, OK VL - 1999 SN - 0094-0038, 0094-0038 KW - United States KW - overpressure KW - desorption KW - Cretaceous KW - natural gas KW - halogens KW - petroleum KW - New Mexico KW - Upper Cretaceous KW - reservoir rocks KW - ground water KW - Cenozoic KW - chloride ion KW - hydrodynamics KW - outcrops KW - San Juan Basin KW - geochemistry KW - chlorine KW - Quaternary KW - Eocene KW - Paleogene KW - hydrochemistry KW - Mesozoic KW - Fruitland Formation KW - models KW - Tertiary KW - recharge KW - dissolved materials KW - traps KW - coalbed methane KW - Pleistocene KW - hydraulic conductivity KW - Colorado KW - water wells KW - permeability KW - 29A:Economic geology, geology of energy sources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52391306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Meeting+Expanded+Abstracts+-+American+Association+of+Petroleum+Geologists&rft.atitle=Fruitland+Formation+waters%2C+San+Juan+Basin%2C+Colorado%2C+and+their+relevance+to+understanding+Fruitland+coalbed+methane+reservoirs&rft.au=Riese%2C+W+C%3BFranks%2C+S+G%3BFehn%2C+Udo%3BMoran%2C+Jean+E%3BAnonymous&rft.aulast=Riese&rft.aufirst=W&rft.date=1999-01-01&rft.volume=1999&rft.issue=&rft.spage=A116&rft.isbn=&rft.btitle=&rft.title=Annual+Meeting+Expanded+Abstracts+-+American+Association+of+Petroleum+Geologists&rft.issn=00940038&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Association of Petroleum Geologists 1999 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2000-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - APGAB2 N1 - SubjectsTermNotLitGenreText - Cenozoic; chloride ion; chlorine; coalbed methane; Colorado; Cretaceous; desorption; dissolved materials; Eocene; Fruitland Formation; geochemistry; ground water; halogens; hydraulic conductivity; hydrochemistry; hydrodynamics; Mesozoic; models; natural gas; New Mexico; outcrops; overpressure; Paleogene; permeability; petroleum; Pleistocene; Quaternary; recharge; reservoir rocks; San Juan Basin; Tertiary; traps; United States; Upper Cretaceous; water wells ER - TY - JOUR T1 - Energetics of formation of brannerites and pyrochlores AN - 52369287; 2000-031095 AB - Since the end of the cold war and the ratification of several arms reduction treaties the United States has designated approximately 60 metric tons of weapons grade plutonium as excess of defense needs. The current plan for the disposal of the excess Pu is to incorporate it into a crystalline ceramic with a matrix composition described by the quaternary zirconolite/pyrochlore system: CaHfTi (sub 2) O (sub 7) - CaPuTi (sub 2) O (sub 7) - CaUTi (sub 2) O (sub 7) - Gd (sub 2) Ti (sub 2) O (sub 7) . An impurity phase found in this system is U-rich brannerite, UTi (sub 2) O (sub 6) , which is also commonly found in many uranium deposits as (U,Th,Ca,Y)(Ti,Fe) (sub 2) O (sub 6) . Pyrochlore is a common accessory mineral in many geologic settings and has a nominal stoichiometry, ABTi (sub 2) O (sub 7) , where A = Ca, REE and B = U, Th, REE, and can occur with a wide variety of substitutions on the A and B sites. In order to develop a useful model for the thermodynamic stability of these complex solid solutions, it is necessary to determine the energetics of the end-member phases. High temperature oxide melt solution calorimetry was used to characterize the energetics of CaMTi (sub 2) O (sub 7) -pyrochlore where M = Hf, Zr, Ce; a Gd-substituted pyrochlore, Gd (sub 2) Ti (sub 2) O (sub 7) ; and MTi (sub 2) O (sub 6) - brannerite where M = Ce, Th. The enthalpies of formation from the binary oxides at 298.15 K were calculated (kJ per mole, errors are reported as 2 standard deviaitons of the mean in parentheses): CaHfTi (sub 2) O (sub 7) = -111.2(4.3), CaZrTi (sub 2) O (sub 7) = -88.7(4.0), CaCeTi (sub 2) O (sub 7) = +67.9(25.7), Gd (sub 2) Ti (sub 2) O (sub 7) = -113.0(5.0), CeTi (sub 2) O (sub 6) = +113.3(3.1) and ThTi (sub 2) O (sub 6) = +18.3(1.6). Solution calorimetry of uranium pyrochlore, CaUTi (sub 2) O (sub 7) and uranium brannerite, UTi (sub 2) O (sub 6) is underway. Data for their formation enthalpies will be presented. The enthalpy of formation of the brannerites becomes more exothermic with increasing tetravalent cation radius, that of the pyrochlores becomes more endothermic. JF - Abstracts with Programs - Geological Society of America AU - Helean, Katheryn B AU - Majzlan, Juraj AU - Putnam, Robert L AU - Navrotsky, Alexandra AU - Ebbinghaus, Bart AU - Krikorian, Oscar AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 134 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - halides KW - zirconolite KW - fluorides KW - solutions KW - plutonium KW - standard deviation KW - brannerite KW - pyrochlore KW - errors KW - enthalpy KW - composition KW - oxides KW - rare earths KW - thermodynamic properties KW - calorimetry KW - tantalates KW - matrix KW - statistical analysis KW - models KW - uranium ores KW - niobotantalates KW - metals KW - niobates KW - metal ores KW - uranium KW - waste disposal KW - actinides KW - energy KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52369287?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Energetics+of+formation+of+brannerites+and+pyrochlores&rft.au=Helean%2C+Katheryn+B%3BMajzlan%2C+Juraj%3BPutnam%2C+Robert+L%3BNavrotsky%2C+Alexandra%3BEbbinghaus%2C+Bart%3BKrikorian%2C+Oscar%3BAnonymous&rft.aulast=Helean&rft.aufirst=Katheryn&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=134&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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; brannerite; calorimetry; composition; energy; enthalpy; errors; fluorides; halides; matrix; metal ores; metals; models; niobates; niobotantalates; oxides; plutonium; pyrochlore; rare earths; solutions; standard deviation; statistical analysis; tantalates; thermodynamic properties; uranium; uranium ores; waste disposal; zirconolite ER - TY - JOUR T1 - Shock deformation of autochthonous conglomerates near the Azuara impact structure, Spain AN - 52369154; 2000-031019 AB - Quartzite cobbles in Lower Triassic conglomerates in northern Spain are marked by circular and elongated "craters" of millimeter to centimeter size, which are commonly explained as the product of tectonic compression and pressure dissolution of neighboring clasts. The craters are usually sharply defined, show a distinct central mound, and are surrounded by radial fractures. Vertical sections show prominent conical fracturing, and a bright halo zone below the crater floors. Thin sections exhibit distinct open (tensile) fractures below the crater floor, and zones adjacent to the craters where 100% of the quartz grains show well-developed planar features. On the other hand, thin sections of the contact zones lack evidence of any dissolution processes. Thus, we reject the pressure dissolution model and favor dynamical deformation by shock from the nearby Azuara impact structure and its possible Rubielos de la Cerida twin crater (mid-Tertiary? age). Accordingly, the cratering in the conglomerates is explained by shock acceleration of the cobbles combined with rarefaction, spallation, and reverberation processes. The shock cratering of the quartzite cobbles is associated with intense subparallel macroscopic and microscopic fracturing in the conglomerates that shows radial and/or tangential orientation with respect to the centers of Azuara and proposed Rubielos structures. The closely spaced intergranular microfractures are decorated with fresh-water fluid inclusions, which have hydrothermal trapping temperatures of about 200 degrees C. This type of deformation has now been simulated in shock experiments on artificial conglomerates, confirming the impact model. We suggest that these deformations may be typical in shocked autochthonous conglomerates, and that they may provide a signature of impacts in cases where shock metamorphism is weak or absent. JF - Abstracts with Programs - Geological Society of America AU - Ernstson, K AU - Rampino, M R AU - Anguita, F AU - Hiltl, M AU - Siegert, I AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 122 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - impact features KW - Spain KW - Europe KW - Iberian Peninsula KW - solution KW - temperature KW - Southern Europe KW - Lower Triassic KW - fractures KW - sedimentary rocks KW - Triassic KW - northern Spain KW - inclusions KW - sediments KW - compression KW - spallation KW - processes KW - clastic sediments KW - clasts KW - deformation KW - metamorphism KW - Mesozoic KW - conglomerate KW - Azuara impact structure KW - models KW - cobbles KW - Rubielos de la Cerida Crater KW - impact craters KW - fluid inclusions KW - pressure solution KW - clastic rocks KW - shock metamorphism KW - autochthons KW - 23:Geomorphology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52369154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Shock+deformation+of+autochthonous+conglomerates+near+the+Azuara+impact+structure%2C+Spain&rft.au=Ernstson%2C+K%3BRampino%2C+M+R%3BAnguita%2C+F%3BHiltl%2C+M%3BSiegert%2C+I%3BAnonymous&rft.aulast=Ernstson&rft.aufirst=K&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=122&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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - autochthons; Azuara impact structure; clastic rocks; clastic sediments; clasts; cobbles; compression; conglomerate; deformation; Europe; fluid inclusions; fractures; Iberian Peninsula; impact craters; impact features; inclusions; Lower Triassic; Mesozoic; metamorphism; models; northern Spain; pressure solution; processes; Rubielos de la Cerida Crater; sedimentary rocks; sediments; shock metamorphism; solution; Southern Europe; Spain; spallation; temperature; Triassic ER - TY - JOUR T1 - Timing of late Quaternary glaciations throughout the Himalayas AN - 52363607; 2000-035671 AB - Past and present glaciation in Tibet and the bordering mountains has had a profound influence on global climate, as well as the climates and hydrology of the densely populated adjacent regions. There is a need to reconstruct the magnitude and frequency of past climatic change in this region to understand and model the dynamics of the main climatic systems that operate today in Central Asia and for testing general circulation models that are used to predict future global and regional environmental change. However, the timing of glaciation in these regions is poorly constrained. This is partially due to the lack of organic material within sediments in these high altitude environments which therefore inhibits the use of radiocarbon dating. During the last few years, however, we have been able to make improved reconstructions of the former extent and timing of glaciation in the Himalayas using detailed mapping, and optically stimulated luminescence and cosmogenic dating. Our results show that in the Karakoram Mountains of northern Pakistan, preliminary cosmogenic dating constrains four glaciations at approximately 50-60 ka, approximately 22-25 ka, approximately 16-18 ka and approximately 10-12 ka. Further south in the middle Indus valley and Swat Himalaya OSL dates constrain glaciations at approximately 77 ka, approximately 38 ka, approximately 27 ka, approximately 21-23 and approximately 15 ka. In northern India cosmogenic dating provides evidence for glacial advances at approximately 10 ka and approximately 14 ka. In the Khumbu Himal, OSL dating constrains two advances at approximately 10 ka and at approximately 18-25 ka. These data show that multiple glaciations have occurred throughout the Himalayas during the last glacial cycle, and that glaciation was regionally asynchronous. Furthermore, the maximum extent of glaciation occurred earlier than the northern hemisphere last glacial maximum (LGM: approximately 18-22 ka) when the northern hemisphere ice sheets reached their maximum. JF - Abstracts with Programs - Geological Society of America AU - Owen, Lewis Andrew AU - Caffee, Marc AU - Finkel, Robert AU - Gualtieri, Lyn AU - Spencer, Joel Q AU - Richards, Ben AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 141 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - cycles KW - general circulation models KW - climatic controls KW - Far East KW - Quaternary KW - glaciation KW - glacial extent KW - paleohydrology KW - Indus River KW - paleoclimatology KW - ice sheets KW - Cenozoic KW - luminescence KW - dates KW - Xizang China KW - upper Quaternary KW - Himalayas KW - glacial geology KW - Asia KW - China KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52363607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Reproductive+and+Infant+Psychology&rft.atitle=Defence+against+trauma%3A+Women%E2%80%99s+use+of+defence+mechanisms+following+childbirth-related+trauma&rft.au=Fenech%2C+Giliane%3BThomson%2C+Gill&rft.aulast=Fenech&rft.aufirst=Giliane&rft.date=2015-05-01&rft.volume=33&rft.issue=3&rft.spage=268&rft.isbn=&rft.btitle=&rft.title=Journal+of+Reproductive+and+Infant+Psychology&rft.issn=02646838&rft_id=info:doi/10.1080%2F02646838.2015.1030731 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Asia; Cenozoic; China; climatic controls; cycles; dates; Far East; general circulation models; glacial extent; glacial geology; glaciation; Himalayas; ice sheets; Indus River; luminescence; paleoclimatology; paleohydrology; Quaternary; upper Quaternary; Xizang China ER - TY - JOUR T1 - Geophysical monitoring of the Busted Butte unsaturated zone transport test AN - 52361755; 2000-035720 AB - The goal of the Busted Butte Unsaturated Zone Transport Test is to understand the processes that control movement of readionuclides through the unsaturated geologic units in Yucca Mountain, Nevada. Of particular interest are effects of heterogeneities on flow and transport under unsaturated and partially saturated conditions, migration behavior of colloids in fractured and unfractured tuff and the effect of scaling (lab scale to field scale and then to site scale). Implementation of the test requires determining the movement of radionuclide surrogates tracers in a closely-monitored infiltration experiment using a large, in situ, 10 mX10 mX7 m tuff block. Several geophysical methods are used to monitor tracer position as a function of time: 1- Electrical resistance tomography (ERT) provides 3D images of electrical resisitvity at approximately one month intervals. Of course, introduction of the tracer into the rock mass changes the electrical resistivity, therefore the ERT images are interpreted in terms of moisture content changes relative to a background, pretest condition. In addition, however, pre-experiment, baseline images have helped to delineate heterogeneity in the test block. 2- Cross borehole radar tomography provides 2D images of electromagnetic permitivity in four planes. These images can also be interpreted in terms of moisture content changes. As a result of the 200 MHz operating frequency, this method provides particularly high resolution images. 3- Borehole neutron logging provides 1D data of moisture content along several boreholes. This method provides the highest spatial resolution data but with limited spatial coverage. Taken together, these data provide valuable insight into the actual flow and transport during the test and make it possible to extend the limited information available from the post experiment coring. JF - Abstracts with Programs - Geological Society of America AU - Daily, William AU - Buettner, Mike AU - Ramirez, Abelardo AU - Williams, Kenneth AU - Bussod, Gilles AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 150 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - tomography KW - fractured materials KW - electrical conductivity KW - volcanic rocks KW - geophysical surveys KW - isotopes KW - one-dimensional models KW - moisture KW - igneous rocks KW - unsaturated zone KW - cores KW - ground water KW - radioactive isotopes KW - transport KW - movement KW - electromagnetic methods KW - tuff KW - heterogeneity KW - Yucca Mountain KW - Nevada KW - experimental studies KW - colloidal materials KW - monitoring KW - well logs KW - in situ KW - three-dimensional models KW - crosshole methods KW - geophysical methods KW - radar methods KW - Nye County Nevada KW - two-dimensional models KW - pyroclastics KW - surveys KW - testing KW - Busted Butte KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52361755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geophysical+monitoring+of+the+Busted+Butte+unsaturated+zone+transport+test&rft.au=Daily%2C+William%3BBuettner%2C+Mike%3BRamirez%2C+Abelardo%3BWilliams%2C+Kenneth%3BBussod%2C+Gilles%3BAnonymous&rft.aulast=Daily&rft.aufirst=William&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=150&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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Busted Butte; colloidal materials; cores; crosshole methods; electrical conductivity; electromagnetic methods; experimental studies; fractured materials; geophysical methods; geophysical surveys; ground water; heterogeneity; igneous rocks; in situ; isotopes; moisture; monitoring; movement; Nevada; Nye County Nevada; one-dimensional models; pyroclastics; radar methods; radioactive isotopes; surveys; testing; three-dimensional models; tomography; transport; tuff; two-dimensional models; United States; unsaturated zone; volcanic rocks; well logs; Yucca Mountain ER - TY - JOUR T1 - Connected network model of subsurface heterogeneity; perspective on evolution of hydrogeologic paradigms AN - 52361587; 2000-035715 AB - In-depth analysis of subsurface geologic and hydrologic data together with development of new geostatistical simulation techniques and knowledge of depositional processes led to creation of a detailed hydrofacies model of an alluvial fan aquifer system underlying the Lawrence Livermore National Laboratory (LLNL). Analysis of aquifer (channel) connectivity, simulation of complex response to a pumping test, assessment of effective hydraulic conductivity, and transport analysis provokes a "connected network" paradigm for the system and suggests potential shortcomings of more conventional paradigms of subsurface heterogeneity. Owing to mathematical expediency, most previous models of complex heterogeneity (e.g., Gaussian random field models) have focused on aquifer units, thereby neglecting potentially critical processes occurring in aquitard units. This evolution of assumptions and paradigms closely parallels the history of pumping-test model development, which initially emphasized simplified, homogeneous models (e.g., Theis equation), but were gradually improved to include aquitard materials as well (e.g., leaky aquifer theory). In typically heterogeneous formations, aquitard materials comprise 50-percent or more of the system. Simulation of complex response to a 24-hr pumping test demonstrated plausibility of the connected network paradigm while providing insights into hydraulic processes. Simulated time-drawdown responses at observation well locations were most sensitive to hydraulic properties of the aquitard materials. Contrary to conventional leaky aquifer paradigms, decreasing K of the aquitard (floodplain) facies increased, rather than decreased, drawdowns at observation points located in aquifer zones that would appear to be separate from the channel stratum being pumped. Because of the extensive connectivity of channel sediments effective hydraulic conductivity parallel to the channels (dip direction) is merely the arithmetic mean. K in strike and vertical directions are both controlled by more complex hydraulics due to circuitous connectivity transverse to the channel orientations. Channel connectivity and vertical K are sensitive to spatial cross correlation between channel and levee facies in the geostatistical spatial model, demonstrating that facies juxtapositional tendencies can be hydrologically significant. High-resolution transport simulations further illustrate the network paradigm and demonstrate the negative consequences of characterizing only the aquifers and neglecting the aquitards. JF - Abstracts with Programs - Geological Society of America AU - Fogg, Graham E AU - Carle, S F AU - Green, C T AU - LaBolle, E M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 149 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - observation wells KW - Alameda County California KW - simulation KW - ground water KW - California KW - pump tests KW - transport KW - Lawrence Livermore National Laboratory KW - leaky aquifers KW - hydrofacies KW - heterogeneity KW - networks KW - Central California KW - statistical analysis KW - connectivity KW - geostatistics KW - properties KW - aquitards KW - aquifers KW - models KW - lithofacies KW - heterogeneous materials KW - alluvial fans KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52361587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Connected+network+model+of+subsurface+heterogeneity%3B+perspective+on+evolution+of+hydrogeologic+paradigms&rft.au=Fogg%2C+Graham+E%3BCarle%2C+S+F%3BGreen%2C+C+T%3BLaBolle%2C+E+M%3BAnonymous&rft.aulast=Fogg&rft.aufirst=Graham&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=149&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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Alameda County California; alluvial fans; aquifers; aquitards; California; Central California; connectivity; geostatistics; ground water; heterogeneity; heterogeneous materials; hydrofacies; Lawrence Livermore National Laboratory; leaky aquifers; lithofacies; models; networks; observation wells; properties; pump tests; simulation; statistical analysis; transport; United States ER - TY - JOUR T1 - Calcite growth kinetics; in situ observations of surface processes and relationships to chemical affinity-based rate laws AN - 52343665; 2000-045184 AB - Chemical affinity-based rate laws are widely used to quantify dissolution and growth kinetics. There are two uncertainties associated with them: 1) surface processes that control the overall growth rate; 2) dependence of growth mechanism upon supersaturation. We compare experimental evidence with fundamental growth theories to show where popular affinity-based rate expressions hold or break down. Using in situ Atomic Force Microscopy (AFM), we conducted calcite growth experiments to determine (1) the supersaturation (s) range where growth occurs only by spiral formation; (2) the critical supersaturation that initiates a surface nucleation mechanism; (3) step velocities, Vs, and the slopes of growth hillocks, p; (4) normal growth rates, Rm, for single spirals; and (5) dependence of Rm upon dislocation source structure. We find that, at lower values of s (0 to 0.8), growth is initiated solely by surface imperfections including screw dislocations. Thus, crystal defect-originated growth, in particular, spiral growth, is the manifested mechanism. When s >0.8, 2-D nucleation becomes increasingly important. Measurements of Rm for {104} faces grown by single spirals indicate a superlinear dependence of Rm upon chemical affinity. AFM observations demonstrate that growth kinetics is controlled by dislocation source structures in addition to supersaturation and the dominant growth mode is hillock formation initiated at complex dislocation sources. General surface process-based rate expressions were derived by analyzing the dependence of p upon dislocation source structures to reveal a complex relationship between Rm and chemical affinity. These expressions can be approximated by second order affinity-based rate laws only under special conditions: (1) growth proceeds only by the development of single-sourced, single spirals and (2) growth occurs at the very near-equilibrium conditions where spiral formation is the only operative mechanism. This suggests that chemical affinity-based rate laws obtained by measuring temporal changes in solution chemistry yield composite rates from different dislocation sources and do not generally give meaningful interpretations of growth mechanism. By combining direct observations with macroscopic methods, improved rate laws with greater predictive capabilities may be possible. JF - Abstracts with Programs - Geological Society of America AU - Teng, H Henry AU - Dove, Patricia M AU - De Yoreo, James J 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 - experimental studies KW - mechanism KW - rates KW - crystal growth KW - solution KW - calcite KW - atomic force microscopy data KW - nucleation KW - saturation KW - quantitative analysis KW - kinetics KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52343665?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Calcite+growth+kinetics%3B+in+situ+observations+of+surface+processes+and+relationships+to+chemical+affinity-based+rate+laws&rft.au=Teng%2C+H+Henry%3BDove%2C+Patricia+M%3BDe+Yoreo%2C+James+J%3BAnonymous&rft.aulast=Teng&rft.aufirst=H&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 - 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; calcite; carbonates; crystal growth; experimental studies; kinetics; mechanism; nucleation; processes; quantitative analysis; rates; saturation; solution ER - TY - JOUR T1 - An early Asian monsoon; monitoring uplift of the Tibetan Plateau via fossil tooth enamel? AN - 52275415; 2001-006905 AB - A popular model for the origin of the Tibetan plateau invokes rapid uplift at approximately 8 Ma resulting from lithospheric delamination. Numerous data have been used to support this model, including onset of extension in one well-dated Tibetan graben, a shift in plant communities from C3- to C4-dominated, and changes in Indian Ocean sedimentation patterns, all occurring at about 8 Ma. Independent GCM's further indicate that rapid plateau uplift should have initiated or intensified the monsoon throughout southeastern Asia and the Indian subcontinent. Thus, if Tibetan uplift indeed occurred rapidly at approximately 8 Ma, there should be a readily recognizable change in climate seasonality (i.e., variations in temperature and/or rainfall patterns), with low seasonality prior to 8 Ma, and high seasonality after 8 Ma. New oxygen isotope data from fossil tooth enamel from the Siwaliks of Pakistan show little difference in seasonal climate intensity from at least 9.5 Ma to the present. 61 analyses from 1 bovid and 9 equid teeth reveal smooth changes in isotope composition along each tooth, consistent with seasonal changes in climate. These data show a shift from an average composition of approximately 18 per mil (SMOW) at 9.5 Ma to approximately 23.5 per mil at 0-3 Ma, as expected from well-documented changes in animal diet from C3- to C4-dominated during this time (C4 plants have a higher d18O compared to C3 plants). Most importantly, however, there is little obvious change in isotope variability: samples from 9.5 Ma vary between 15 and 20 per mil, whereas samples from 0-3 Ma vary between 21 and 26 per mil. The approximately 5 per mil variation in 0-3 Ma samples closely matches the approximately 5 per mil seasonal variation observed in Pakistani river water. The lack of a significant change in isotope seasonality between 3 and 9.5 Ma implies the Asian monsoon was already intensely active by 9.5 Ma. Thus if indeed the Asian monsoon was triggered by the establishment of some critical plateau elevation, then that elevation must have been reached prior to 9.5 Ma. JF - Abstracts with Programs - Geological Society of America AU - Kohn, Matthew J AU - Quade, Jay AU - Ryerson, F J AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 66 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - Far East KW - communities KW - oxygen KW - isotopes KW - altitude KW - uplifts KW - paleoclimatology KW - stable isotopes KW - variations KW - Cenozoic KW - monsoons KW - Indian Ocean KW - Indian Peninsula KW - Tibetan Plateau KW - Asia KW - Siwalik System KW - China KW - general circulation models KW - Plantae KW - patterns KW - Pakistan KW - monitoring KW - isotope ratios KW - enamel KW - O-18/O-16 KW - teeth KW - Miocene KW - models KW - Tertiary KW - deposition KW - Neogene KW - upper Miocene KW - seasonal variations KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52275415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+early+Asian+monsoon%3B+monitoring+uplift+of+the+Tibetan+Plateau+via+fossil+tooth+enamel%3F&rft.au=Kohn%2C+Matthew+J%3BQuade%2C+Jay%3BRyerson%2C+F+J%3BAnonymous&rft.aulast=Kohn&rft.aufirst=Matthew&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=66&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 - altitude; Asia; Cenozoic; China; communities; deposition; enamel; Far East; general circulation models; Indian Ocean; Indian Peninsula; isotope ratios; isotopes; Miocene; models; monitoring; monsoons; Neogene; O-18/O-16; oxygen; Pakistan; paleoclimatology; patterns; Plantae; seasonal variations; Siwalik System; stable isotopes; teeth; Tertiary; Tibetan Plateau; uplifts; upper Miocene; variations ER - TY - JOUR T1 - Oxygen and carbon isotope study of natural and synthetic azurite AN - 52261527; 2001-015045 JF - Abstracts with Programs - Geological Society of America AU - Melchiorre, Erik B AU - Criss, Robert E AU - Rose, Timothy P AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 220 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - speleothems KW - meteoric water KW - isotope fractionation KW - azurite KW - experimental studies KW - geologic thermometry KW - oxygen KW - isotopes KW - isotope ratios KW - natural materials KW - C-13/C-12 KW - O-18/O-16 KW - stable isotopes KW - carbon dioxide KW - massive sulfide deposits KW - precipitation KW - carbon KW - massive deposits KW - solution features KW - carbonates KW - synthetic materials KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52261527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Oxygen+and+carbon+isotope+study+of+natural+and+synthetic+azurite&rft.au=Melchiorre%2C+Erik+B%3BCriss%2C+Robert+E%3BRose%2C+Timothy+P%3BAnonymous&rft.aulast=Melchiorre&rft.aufirst=Erik&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=220&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 - azurite; C-13/C-12; carbon; carbon dioxide; carbonates; experimental studies; geologic thermometry; isotope fractionation; isotope ratios; isotopes; massive deposits; massive sulfide deposits; meteoric water; natural materials; O-18/O-16; oxygen; precipitation; solution features; speleothems; stable isotopes; synthetic materials ER - TY - JOUR T1 - Effect of organic compounds on calcite growth; determining foundations of biomineral formation AN - 52245229; 2001-027684 AB - Calcium carbonate precipitation is central to biomineralization processes in marine and freshwater environments by photosynthesizing microorganisms. Complex proteins and their amino acid residues are believed to play determinate roles in biomineralization phenomena but their effects on kinetics, thermodynamics, and growth morphology are not understood. Advances in our ability to unravel biologically-induced mineralization by microscopic in situ observation have rejuvenated interests in understanding how microbes and higher organisms synthesize minerals at very near-equilibrium conditions.This study quantifies the effect of amino acids and related organic compounds on step migration rates for the (104) calcite surface using in situ Fluid Cell AFM. L-aspartic and L-glutamic acids are abundant in natural biomineralizing systems while maleic, malonic, and L-alpha-aminobutyric acids were selected to probe mechanisms by which individual functional groups modify growth. Experiments were conducted using control and 0.01 molal organic-doped solutions, at pH = 8.5, IS = 0.1, and supersaturations = 0.6-1.2. Calcium and carbonate activity ratios were adjusted to approximately 1.0 for each solution. Measurements of step velocities show that glutamic acid acts as an overall inhibitor to single spiral growth. In contrast, L-alpha-aminobutyric acid, which lacks a carboxylic functional group, increased step velocities. All of the compounds affected growth morphology by changing and rounding the dominant step edge directions except L-alpha-aminobutyric acid. The extents of the rate enhancing/inhibiting effects were dependent upon supersaturation. These findings indicate the site-specific interactions of carboxyl and amine groups with the four types of kink sites found at calcite step edges. Our analysis suggests that unique growth geometries result from perturbations in microscopic kinetics and possibly thermodynamics. JF - Abstracts with Programs - Geological Society of America AU - Grantham, Meg C AU - Teng, H Henry AU - Davis, Kevin J AU - De Yoreo, James J AU - Dove, Patricia M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 393 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - photosynthesis KW - solutions KW - crystal growth KW - organization KW - atomic force microscopy data KW - quantitative analysis KW - thermodynamic properties KW - kinetics KW - pH KW - processes KW - biomineralization KW - experimental studies KW - in situ KW - photochemistry KW - effects KW - fresh-water environment KW - calcite KW - organic compounds KW - saturation KW - precipitation KW - marine environment KW - proteins KW - carbonates KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52245229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Effect+of+organic+compounds+on+calcite+growth%3B+determining+foundations+of+biomineral+formation&rft.au=Grantham%2C+Meg+C%3BTeng%2C+H+Henry%3BDavis%2C+Kevin+J%3BDe+Yoreo%2C+James+J%3BDove%2C+Patricia+M%3BAnonymous&rft.aulast=Grantham&rft.aufirst=Meg&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=393&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 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 - atomic force microscopy data; biomineralization; calcite; carbonates; crystal growth; effects; experimental studies; fresh-water environment; in situ; kinetics; marine environment; microorganisms; organic compounds; organization; pH; photochemistry; photosynthesis; precipitation; processes; proteins; quantitative analysis; saturation; solutions; thermodynamic properties ER - TY - JOUR T1 - The temperature of formation of carbonates in Martian meteorite ALH84001; constraints from cation diffusion AN - 52244790; 2001-030543 AB - Calculations based on our measurements of the diffusivities of Mg in calcite and Ca in magnesite indicate that carbonate rosettes in martian meteorite ALH84001 formed at temperatures that are at least below 400 degrees C, and most likely less than 200 degrees -250 degrees C. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kent, A J R AU - Hutcheon, I D AU - Ryerson, F J AU - Phinney, D L AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1473 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - calcium KW - alkaline earth metals KW - magnesium KW - experimental studies KW - diffusion KW - stony meteorites KW - ion probe data KW - Martian meteorites KW - mass spectra KW - magnesite KW - achondrites KW - temperature KW - calcite KW - meteorites KW - geochemical profiles KW - Allan Hills Meteorites KW - mineral composition KW - metals KW - cations KW - spectra KW - ALH 84001 KW - geochemistry KW - carbonates KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52244790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+temperature+of+formation+of+carbonates+in+Martian+meteorite+ALH84001%3B+constraints+from+cation+diffusion&rft.au=Kent%2C+A+J+R%3BHutcheon%2C+I+D%3BRyerson%2C+F+J%3BPhinney%2C+D+L%3BAnonymous&rft.aulast=Kent&rft.aufirst=A+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 - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; alkaline earth metals; Allan Hills Meteorites; calcite; calcium; carbonates; cations; diffusion; experimental studies; geochemical profiles; geochemistry; ion probe data; magnesite; magnesium; Martian meteorites; mass spectra; metals; meteorites; mineral composition; spectra; stony meteorites; temperature ER - TY - JOUR T1 - Magnesium as an impurity on calcite growth; a model system for the incorporation of inorganic impurities into biominerals AN - 52244662; 2001-027688 AB - Calcium carbonate (CaCO (sub 3) ) mineralization is currently the focus of intense research due to its importance in biogeochemical systems. The incorporation of Mg (super 2+) into magnesian calcite is of particular interest due to its ubiquitous occurrence as an impurity in carbonate biominerals and the accompanying organism-specific controls on Mg content through the complex processes of biomineralization. A complete understanding of the macroscopic processes that govern calcium carbonate formation in Mg-bearing biogeochemical environments, requires a microscopic understanding of the mechanisms involved. Contact mode fluid-cell Atomic Force Microscopy (AFM) was used to determine the effect of Mg (super 2+) on calcite growth kinetics in a flow-through environment. The parameters fundamental to calcite mineralization, step velocity (v) and hillock slope (p), were measured through in situ observations of individual growth spirals, as a function of supersaturation and Mg (super 2+) impurity levels. Individual step velocities for both the (+) and (-) vicinal faces were measured to be uninhibited in solutions with [Mg (super 2+) ]/[Ca (super 2+) ] up to 0.2, although steps along the (-) direction appeared to be pinned by an impurity fence. At higher [Mg (super 2+) ]/[Ca (super 2+) ], step velocities along both directions steadily decreased, and step edges along all directions were significantly pinned by impurities. Complete inhibition of growth was observed as [Mg (super 2+) ]/[Ca (super 2+) ] approached two. Significant changes in hillock morphology that resulted from deviations in both the dominant growth direction and terrace widths were observed as a function of Mg. The step velocity and terrace width data are consistent with established crystal growth impurity models for inhibition by incorporation. Findings from this study are the first to document the microscopic role of magnesium in mediating calcite growth kinetics and the first to determine the mechanism of inhibition within the context of crystal growth impurity models. JF - Abstracts with Programs - Geological Society of America AU - Davis, Kevin J AU - Dove, Patricia M AU - De Yoreo, James J AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 393 EP - 394 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - biomineralization KW - alkaline earth metals KW - magnesium KW - solutions KW - biochemistry KW - mechanism KW - crystal growth KW - calcite KW - models KW - atomic force microscopy data KW - saturation KW - metals KW - velocity KW - calcium carbonate KW - magnesian calcite KW - kinetics KW - geochemistry KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52244662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Magnesium+as+an+impurity+on+calcite+growth%3B+a+model+system+for+the+incorporation+of+inorganic+impurities+into+biominerals&rft.au=Davis%2C+Kevin+J%3BDove%2C+Patricia+M%3BDe+Yoreo%2C+James+J%3BAnonymous&rft.aulast=Davis&rft.aufirst=Kevin&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=393&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 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; atomic force microscopy data; biochemistry; biomineralization; calcite; calcium carbonate; carbonates; crystal growth; geochemistry; kinetics; magnesian calcite; magnesium; mechanism; metals; models; saturation; solutions; velocity ER - TY - JOUR T1 - Exposure history of new Martian meteorite Dar al Gani 476 AN - 52244211; 2001-030537 AB - A basaltic shergottite, Dar al Gani 476 was found May 1, 1998, in the Libyan part of the Sahara. This fragment represents the thirteenth individual martian meteorite. We report here preliminary results of cosmogenic 14 C, 41 Ca, 36 Cl, 26 Al, and 10 Be. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nishiizumi, K AU - Masarik, J AU - Welten, K C AU - Caffee, Marc W AU - Jull, A J T AU - Klandrud, S E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1966 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - calcium KW - stony meteorites KW - isotopes KW - Ca-41 KW - Martian meteorites KW - halogens KW - cosmogenic elements KW - exposure age KW - SNC Meteorites KW - meteorites KW - radioactive isotopes KW - Dar al Gani Meteorites KW - carbon KW - basaltic composition KW - geochemistry KW - chlorine KW - concentration KW - alkaline earth metals KW - Be-10 KW - Cl-36 KW - achondrites KW - shergottite KW - metals KW - C-14 KW - beryllium KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52244211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Exposure+history+of+new+Martian+meteorite+Dar+al+Gani+476&rft.au=Nishiizumi%2C+K%3BMasarik%2C+J%3BWelten%2C+K+C%3BCaffee%2C+Marc+W%3BJull%2C+A+J+T%3BKlandrud%2C+S+E%3BAnonymous&rft.aulast=Nishiizumi&rft.aufirst=K&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 - achondrites; alkaline earth metals; basaltic composition; Be-10; beryllium; C-14; Ca-41; calcium; carbon; chlorine; Cl-36; concentration; cosmogenic elements; Dar al Gani Meteorites; exposure age; geochemistry; halogens; isotopes; Martian meteorites; metals; meteorites; radioactive isotopes; shergottite; SNC Meteorites; stony meteorites ER - TY - JOUR T1 - Sediment generation and export rates in the Nahal Yael drainage basin, determined from cosmogenic 10Be and 26Al, Negev Desert, southern Israel AN - 52240235; 2001-035588 AB - Sediment flux from Nahal Yael, a small (0.6 km (super 2) ) mountainous drainage basin in the Negev Desert has been monitored for 3 decades, an abundance of data replicated in few other basins. We measured 10Be and 26Al in 16 sediment and 8 bedrock samples representing sediment sources and sinks. We use these data to determine long-term, time-integrated (10 (super 4) years) rates of sediment generation, identify sediment source areas and sediment generation processes, and compare rates of bedrock erosion for different lithologies. We calculated a basin-wide bedrock-equivalent lowering rate of 29+ or -6 m/My and, assuming steady-state, a long-term sediment export rate of 79+ or -17 tons/km (super 2) /yr from channel sediment collected near the outlet of Nahal Yael. Our data yield erosion rate estimates slightly lower (36%) than sediment export rates calculated using the historical sediment loading data. Measurement of cosmogenic nuclides in geomorphic features provides insight into processes shaping desert environments. Throughout most of the basin (excluding the uppermost highlands), average 10Be concentrations measured in the bedrock samples (2.4+ or -0.63X10 (super 5) atoms/g) were significantly greater than those measured in the channel sediment (1.25+ or -0.04X10 (super 5) atoms/g), hillslope colluvium (1.25+ or -0.05X10 (super 5) atoms/g), and basin alluvium stored in terraces (1.56+ or -0.15X10 (super 5) atoms/g). These data suggest that most sediment is generated on the hillslopes under colluvial cover rather than from weathering of exposed bedrock. The slightly higher nuclide concentrations measured in basin alluvium as compared to channel sediment and hillslope colluvium indicate sediment storage for a minimum of 5 ky. Additionally, nuclide data suggests differences in rates of erosion for different lithologies. From our data, we find that gneissic granite erodes more slowly (13.8 + or - 3.4 m/My), than pelitic schist (28.0+ or -19.6 m/My) or amphibolite (16.5+ or -5.4 m/My). JF - Abstracts with Programs - Geological Society of America AU - Clapp, Erik M AU - Bierman, Paul R AU - Caffee, Marc W AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 256 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - isotopes KW - erosion KW - igneous rocks KW - granites KW - cosmogenic elements KW - amphibolites KW - Israel KW - erosion rates KW - terraces KW - Al-26 KW - radioactive isotopes KW - plutonic rocks KW - aluminum KW - metamorphic rocks KW - sediments KW - drainage basins KW - Nahal Yael KW - Negev KW - Asia KW - Middle East KW - southern Israel KW - bedrock KW - alkaline earth metals KW - monitoring KW - Be-10 KW - sediment transport KW - colluvium KW - clastic sediments KW - schists KW - measurement KW - history KW - genesis KW - provenance KW - metals KW - alluvium KW - beryllium KW - 06A:Sedimentary petrology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52240235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Sediment+generation+and+export+rates+in+the+Nahal+Yael+drainage+basin%2C+determined+from+cosmogenic+10Be+and+26Al%2C+Negev+Desert%2C+southern+Israel&rft.au=Clapp%2C+Erik+M%3BBierman%2C+Paul+R%3BCaffee%2C+Marc+W%3BAnonymous&rft.aulast=Clapp&rft.aufirst=Erik&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=256&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 - Al-26; alkaline earth metals; alluvium; aluminum; amphibolites; Asia; Be-10; bedrock; beryllium; clastic sediments; colluvium; cosmogenic elements; drainage basins; erosion; erosion rates; genesis; granites; history; igneous rocks; isotopes; Israel; measurement; metals; metamorphic rocks; Middle East; monitoring; Nahal Yael; Negev; plutonic rocks; provenance; radioactive isotopes; schists; sediment transport; sediments; southern Israel; terraces ER - TY - JOUR T1 - In situ growth of fayalite and hedenbergite in the ungrouped carbonaceous chondrite MAC88107 with affinities to the CM-CO clan AN - 52240194; 2001-030456 AB - The ungrouped carbonaceous chondrite MAC88107 contains secondary fayalite (Fa90-100), hedenbergite ( nearly equal Fs50Wo50), phyllosilicates, magnetite, and Ni-bearing sulfides. Fayalite and hedenbergite formed during aqueous alteration in an asteroidal environment. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Krot, A N AU - Brearley, A J AU - Kallemeyn, G W AU - Hutcheon, I D AU - Petaev, M I AU - Keil, K AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1514 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - silicates KW - stony meteorites KW - affinities KW - olivine group KW - MAC 88107 KW - crystal growth KW - electron probe data KW - CO chondrites KW - meteorites KW - pyroxene group KW - mineral composition KW - clinopyroxene KW - fayalite KW - orthosilicates KW - chondrites KW - chain silicates KW - in situ KW - textures KW - carbonaceous chondrites KW - MacAlpine Hills Meteorites KW - nesosilicates KW - hedenbergite KW - petrography KW - CM chondrites KW - SEM data KW - backscattering KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52240194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=In+situ+growth+of+fayalite+and+hedenbergite+in+the+ungrouped+carbonaceous+chondrite+MAC88107+with+affinities+to+the+CM-CO+clan&rft.au=Krot%2C+A+N%3BBrearley%2C+A+J%3BKallemeyn%2C+G+W%3BHutcheon%2C+I+D%3BPetaev%2C+M+I%3BKeil%2C+K%3BAnonymous&rft.aulast=Krot&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 - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - affinities; backscattering; carbonaceous chondrites; chain silicates; chondrites; clinopyroxene; CM chondrites; CO chondrites; crystal growth; electron probe data; fayalite; hedenbergite; in situ; MAC 88107; MacAlpine Hills Meteorites; meteorites; mineral composition; nesosilicates; olivine group; orthosilicates; petrography; pyroxene group; SEM data; silicates; stony meteorites; textures ER - TY - JOUR T1 - Geochemical tracer ages and their relation to spring water chemistry, Sagehen Springs, CA AN - 52238051; 2001-031656 AB - Geochemical ages of spring waters from the high Sierra Mountains, CA, were determined using chlorofluorocarbons (CFC) and Tritium/ (super 3) He. These methods have been used to successfully date shallow groundwater in numerous settings. CFC ages are based on the atmospheric growth curve of CFCs and the solubility relationship between dissolved gases and natural waters. The Tritium/ (super 3) He method of groundwater dating is based on the decay relationship between tritium derived primarily from thermonuclear bomb tests in the early 1960s, and its daughter isotope, (super 3) He (half-life = 12.43 yr). Tracer ages produced by both methods agree reasonably well, however, the Tritium/ (super 3) He ages are systematically younger. The difference between the tracer ages is most likely caused by a relatively deep unsaturated zone (causing the CFC concentration of the soil air at the water table to lag behind the free atmosphere). Degradation of CFC can be ruled out because (1) the spring water is oxygenated and (2) the CFC-11 and CFC-12 ages agree. Mixing with a very old water (>50 yrs) seems unlikely because of the relatively low (super 4) He concentrations. Excellent agreement was found between the calculated tracer ages and the chemistry of the spring waters in the study area. Springs with similar tracer ages had very similar chemistry despite the fact that they could be found in different areas of the watershed. With increasing age of the spring water, there is an increase in total conductivity, suggestive of more evolved groundwaters and longer exposure to chemical weathering reactions. This is further evidenced by the similar correlation between calcium, the primary cation released by chemical weathering reactions in this area, and tracer age. Calculated chemical weathering rates decrease with increasing spring water age. JF - Abstracts with Programs - Geological Society of America AU - Rademacher, L K AU - Clark, J F AU - Hudson, G B AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 330 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - degradation KW - isotopes KW - watersheds KW - tritium KW - He-3 KW - He-4 KW - stable isotopes KW - chlorofluorocarbons KW - California KW - Sierra Mountains KW - radioactive isotopes KW - dates KW - noble gases KW - tracers KW - springs KW - halogenated hydrocarbons KW - helium KW - Sagehen Springs KW - geochemistry KW - hydrology KW - chemical weathering KW - solutes KW - solubility KW - hydrochemistry KW - weathering KW - organic compounds KW - hydrogen KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52238051?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geochemical+tracer+ages+and+their+relation+to+spring+water+chemistry%2C+Sagehen+Springs%2C+CA&rft.au=Rademacher%2C+L+K%3BClark%2C+J+F%3BHudson%2C+G+B%3BAnonymous&rft.aulast=Rademacher&rft.aufirst=L&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=330&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1999 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 - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2014-03-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - California; chemical weathering; chlorofluorocarbons; dates; degradation; geochemistry; halogenated hydrocarbons; He-3; He-4; helium; hydrochemistry; hydrogen; hydrology; isotopes; noble gases; organic compounds; radioactive isotopes; Sagehen Springs; Sierra Mountains; solubility; solutes; springs; stable isotopes; tracers; tritium; United States; watersheds; weathering ER - TY - JOUR T1 - Mg diffusion in melilite; thermal histories for CAIs and their parent bodies AN - 52237843; 2001-036352 AB - Experimentally measured Mg diffusion coefficients in aakermanite are used to constrain the thermal history of isotopically disturbed CAIs. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - LaTourrette, T AU - Hutcheon, Ian D AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - unpaginated PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - sorosilicates KW - silicates KW - alkaline earth metals KW - magnesium KW - experimental studies KW - diffusion KW - parent bodies KW - calcium-aluminum inclusions KW - thermal history KW - meteorites KW - melilite group KW - melilite KW - metals KW - inclusions KW - orthosilicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52237843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mg+diffusion+in+melilite%3B+thermal+histories+for+CAIs+and+their+parent+bodies&rft.au=LaTourrette%2C+T%3BHutcheon%2C+Ian+D%3BAnonymous&rft.aulast=LaTourrette&rft.aufirst=T&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 - alkaline earth metals; calcium-aluminum inclusions; diffusion; experimental studies; inclusions; magnesium; melilite; melilite group; metals; meteorites; orthosilicates; parent bodies; silicates; sorosilicates; thermal history ER - TY - JOUR T1 - Relic Ca, Al-rich inclusions in chondrules from the carbonaceous chondrites Acfer 182 and Acfer 094 AN - 52236648; 2001-036350 AB - We describe the discovery of two relic CAIs inside chondrules. The relic CAIs and host chondrules contain phases, plagioclase and hibonite, suitable for Al-Mg isotopic study, and may provide information on the time difference between CAI and chondrule formation. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Krot, Alexander N AU - Weber, Dietmar AU - Greshake, Ansgar AU - Ulyanov, Alexander A (Aleksandr A) AU - McKeegan, Kevin D AU - Hutcheon, Ian D AU - Sahijpal, Sandeep AU - Keil, Klaus AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - unpaginated PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - calcium KW - concentration KW - alkaline earth metals KW - stony meteorites KW - calcium-aluminum inclusions KW - Acfer Meteorites KW - carbonaceous chondrites KW - Acfer 094 KW - Acfer 182 KW - meteorites KW - mineral composition KW - metals KW - chondrules KW - aluminum KW - inclusions KW - chondrites KW - chemical composition KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52236648?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Relic+Ca%2C+Al-rich+inclusions+in+chondrules+from+the+carbonaceous+chondrites+Acfer+182+and+Acfer+094&rft.au=Krot%2C+Alexander+N%3BWeber%2C+Dietmar%3BGreshake%2C+Ansgar%3BUlyanov%2C+Alexander+A+%28Aleksandr+A%29%3BMcKeegan%2C+Kevin+D%3BHutcheon%2C+Ian+D%3BSahijpal%2C+Sandeep%3BKeil%2C+Klaus%3BAnonymous&rft.aulast=Krot&rft.aufirst=Alexander&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. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Acfer 094; Acfer 182; Acfer Meteorites; alkaline earth metals; aluminum; calcium; calcium-aluminum inclusions; carbonaceous chondrites; chemical composition; chondrites; chondrules; concentration; inclusions; metals; meteorites; mineral composition; stony meteorites ER - TY - JOUR T1 - Exposure histories of pair lunar meteorites EET 96008 and EET 87521 AN - 52235664; 2001-037606 AB - The lunar basaltic breccia EET 96008 is the eighteenth fragment thought to represent fourteen lunar meteorites. We report here preliminary results of cosmogenic (super 14) C, (super 41) Ca, (super 36) Cl, (super 26) Al, and (super 10) Be. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nishiizumi, K AU - Masarik, J AU - Caffee, M W AU - Jull, A J T AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1980 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - lunar meteorites KW - Earth KW - breccia KW - stony meteorites KW - Moon KW - isotopes KW - EET 96008 KW - EET 87521 KW - Elephant Moraine Meteorites KW - ejecta KW - achondrites KW - meteorites KW - radioactive isotopes KW - fragments KW - carbon KW - cosmic rays KW - C-14 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52235664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Exposure+histories+of+pair+lunar+meteorites+EET+96008+and+EET+87521&rft.au=Nishiizumi%2C+K%3BMasarik%2C+J%3BCaffee%2C+M+W%3BJull%2C+A+J+T%3BAnonymous&rft.aulast=Nishiizumi&rft.aufirst=K&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. N1 - Date revised - 2001-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; breccia; C-14; carbon; cosmic rays; Earth; EET 87521; EET 96008; ejecta; Elephant Moraine Meteorites; fragments; isotopes; lunar meteorites; meteorites; Moon; radioactive isotopes; stony meteorites ER - TY - JOUR T1 - Revisiting the pediment problem using (super 10) Be and (super 26) Al; a case study of the Iron and Granite Mountain piedmonts, Mojave Desert, California AN - 52235426; 2001-035586 JF - Abstracts with Programs - Geological Society of America AU - Nichols, Kyle K AU - Bierman, Paul R AU - Caffee, Marc W AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 256 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Iron Mountain KW - terrestrial environment KW - pediments KW - isotopes KW - Granite Mountains KW - erosion features KW - piedmonts KW - California KW - Al-26 KW - radioactive isotopes KW - quantitative analysis KW - aluminum KW - Mojave Desert KW - sediments KW - thickness KW - horizons KW - processes KW - alkaline earth metals KW - soil profiles KW - Be-10 KW - sediment transport KW - arid environment KW - rates KW - time scales KW - models KW - case studies KW - deposition KW - metals KW - beryllium KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52235426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Revisiting+the+pediment+problem+using+%28super+10%29+Be+and+%28super+26%29+Al%3B+a+case+study+of+the+Iron+and+Granite+Mountain+piedmonts%2C+Mojave+Desert%2C+California&rft.au=Nichols%2C+Kyle+K%3BBierman%2C+Paul+R%3BCaffee%2C+Marc+W%3BAnonymous&rft.aulast=Nichols&rft.aufirst=Kyle&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=256&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 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; arid environment; Be-10; beryllium; California; case studies; deposition; erosion features; Granite Mountains; horizons; Iron Mountain; isotopes; metals; models; Mojave Desert; pediments; piedmonts; processes; quantitative analysis; radioactive isotopes; rates; sediment transport; sediments; soil profiles; terrestrial environment; thickness; time scales; United States ER - TY - JOUR T1 - Integration of lunar polar datasets AN - 52234426; 2001-037413 AB - We continue our studies of the environment and the deposits of the poles of the Moon. In this paper, we describe our integration of Clementine, Lunar Prospector, and ground-based radar data to provide additional insight into the nature of the lunar polar ice deposits. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nozette, Stewart AU - Spudis, Paul D AU - Robinson, Mark S AU - Bussey, Ben AU - Lichtenberg, Chris AU - Bonner, Robert AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1665 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - methods KW - polar regions KW - Moon KW - cartography KW - orbits KW - Shackleton Crater KW - data processing KW - radar methods KW - correlation KW - ice KW - data bases KW - Clementine Program KW - spectroscopy KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52234426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Integration+of+lunar+polar+datasets&rft.au=Nozette%2C+Stewart%3BSpudis%2C+Paul+D%3BRobinson%2C+Mark+S%3BBussey%2C+Ben%3BLichtenberg%2C+Chris%3BBonner%2C+Robert%3BAnonymous&rft.aulast=Nozette&rft.aufirst=Stewart&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. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cartography; Clementine Program; correlation; data bases; data processing; ice; methods; Moon; orbits; polar regions; radar methods; remote sensing; Shackleton Crater; spectroscopy ER - TY - JOUR T1 - Ti(IV) hydrolysis constants derived from rutile solubility measurements made from 100 to 300C AN - 52234128; 2001-037278 AB - Using a Au-Ir hydrothermal reaction cell and dilute buffer solutions to control pH, the isobaric solubility of rutile was measured over a broad pH range from pH 1 to pH 13 between 100 and 300C. The solubility data were regressed to derive the cumulative and stepwise hydrolysis constants for Ti(IV) in aqueous solution. The data were accurately modeled using the hydrolysis species: Ti(OH)3(+), Ti(OH)4(aq) and Ti(OH)5(-). The following cumulative hydrolysis constants (log K, reactions written with respect to the solid oxide) and stepwise hydrolysis constants were determined by regression. These data are required to model the aqueous geochemical behavior of Ti(IV) in solution and provide a baseline for the Ti solubility-limited radionuclide release rates for ceramic titanate wasteforms of interest to the Plutonium Immobilization Project. JF - Abstracts with Programs - Geological Society of America AU - Knauss, Kevin G AU - Dibley, Michael J AU - Bourcier, William L AU - Shaw, Henry F 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 - solutions KW - buffers KW - statistical analysis KW - hydrolysis KW - aqueous solutions KW - solubility KW - solution KW - temperature KW - measurement KW - models KW - titanium KW - metals KW - rutile KW - oxides KW - geochemistry KW - accuracy KW - regression analysis KW - pH KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52234128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ti%28IV%29+hydrolysis+constants+derived+from+rutile+solubility+measurements+made+from+100+to+300C&rft.au=Knauss%2C+Kevin+G%3BDibley%2C+Michael+J%3BBourcier%2C+William+L%3BShaw%2C+Henry+F%3BAnonymous&rft.aulast=Knauss&rft.aufirst=Kevin&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 - accuracy; aqueous solutions; buffers; geochemistry; hydrolysis; measurement; metals; models; oxides; pH; regression analysis; rutile; solubility; solution; solutions; statistical analysis; temperature; titanium 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=68&rft.issue=7&rft.spage=742&rft.isbn=&rft.btitle=&rft.title=Archives+of+General+Psychiatry&rft.issn=0003990X&rft_id=info:doi/10.1001%2Farchgenpsychiatry.2011.62 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 - Layered tektites of Southeast Asia; results of 1998 expedition to Laos and Vietnam AN - 52218061; 2001-046962 AB - We carried out a field investigation of layered tektite localities in Laos and Vietnam. We recovered 18 kg of tektite fragments from 10 sites, including 5 around the town of Muong Nong. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fiske, P S AU - Schnetzler, C C AU - McHone, J F AU - Chanthavaichith, K K AU - Homsombath, I AU - Phouthakayalat, T AU - Khenthavong, B AU - Xuan, P T AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1937 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - strewn fields KW - Far East KW - ejecta KW - layered materials KW - Vietnam KW - spatial distribution KW - size distribution KW - Laos KW - fragments KW - Southeast Asia KW - Asia KW - tektites KW - muong nong-type tektites KW - field studies KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52218061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Layered+tektites+of+Southeast+Asia%3B+results+of+1998+expedition+to+Laos+and+Vietnam&rft.au=Fiske%2C+P+S%3BSchnetzler%2C+C+C%3BMcHone%2C+J+F%3BChanthavaichith%2C+K+K%3BHomsombath%2C+I%3BPhouthakayalat%2C+T%3BKhenthavong%2C+B%3BXuan%2C+P+T%3BAnonymous&rft.aulast=Fiske&rft.aufirst=P&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. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Asia; ejecta; Far East; field studies; fragments; Laos; layered materials; muong nong-type tektites; size distribution; Southeast Asia; spatial distribution; strewn fields; tektites; Vietnam ER - TY - JOUR T1 - Radiogenic (super 53) Cr in Kaidun carbonates; evidence for very early aqueous activity AN - 52217050; 2001-048892 AB - Kaidun carbonates contain large excesses of radiogenic 53 Cr, corresponding to an initial 53 Mn/ 55 Mn of nearly equal 9 X 10 -6 . This value is similar to that measured in chondrules and much higher than in CI carbonates. Kaidun carbonates formed within nearly equal 1 Ma of CAI. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hutcheon, Ian D AU - Weisberg, M K AU - Phinney, D L AU - Zolensky, M E AU - Prinz, Martin AU - Ivanov, A V AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1722 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - experimental studies KW - breccia KW - stony meteorites KW - ion probe data KW - isotopes KW - mass spectra KW - Cr-53 KW - manganese KW - stable isotopes KW - Mn-55/Mn-53 KW - meteorites KW - Kaidun Meteorite KW - sedimentary rocks KW - radioactive isotopes KW - metals KW - chondrules KW - spectra KW - chondrites KW - geochemistry KW - clastic rocks KW - carbonates KW - chromium KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52217050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Radiogenic+%28super+53%29+Cr+in+Kaidun+carbonates%3B+evidence+for+very+early+aqueous+activity&rft.au=Hutcheon%2C+Ian+D%3BWeisberg%2C+M+K%3BPhinney%2C+D+L%3BZolensky%2C+M+E%3BPrinz%2C+Martin%3BIvanov%2C+A+V%3BAnonymous&rft.aulast=Hutcheon&rft.aufirst=Ian&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 - breccia; carbonates; chondrites; chondrules; chromium; clastic rocks; Cr-53; experimental studies; geochemistry; ion probe data; isotopes; Kaidun Meteorite; manganese; mass spectra; metals; meteorites; Mn-55/Mn-53; radioactive isotopes; sedimentary rocks; spectra; stable isotopes; stony meteorites ER - TY - JOUR T1 - New neon production cross section measurements needed for cosmic ray studies AN - 52216572; 2001-048045 AB - We present new proton production cross sections for 20 Ne, 21 Ne, 22 Ne and 22 TNe from Mg and Al. These cross sections are essential as input to models used to analyse the production of these isotopes in lunar rocks and meteorites. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sisterson, J M AU - Caffee, M W AU - Hudson, G B AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1283 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - Ne-21 KW - Ne-20 KW - alkaline earth metals KW - magnesium KW - experimental studies KW - Ne-22 KW - isotopes KW - cosmogenic elements KW - cosmochemistry KW - protons KW - silicon KW - stable isotopes KW - measurement KW - laboratory studies KW - radioactive isotopes KW - noble gases KW - neon KW - metals KW - aluminum KW - theoretical models KW - graphic methods KW - cosmic rays KW - geochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52216572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+neon+production+cross+section+measurements+needed+for+cosmic+ray+studies&rft.au=Sisterson%2C+J+M%3BCaffee%2C+M+W%3BHudson%2C+G+B%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 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aluminum; cosmic rays; cosmochemistry; cosmogenic elements; experimental studies; geochemistry; graphic methods; isotopes; laboratory studies; magnesium; measurement; metals; Ne-20; Ne-21; Ne-22; neon; noble gases; protons; radioactive isotopes; silicon; stable isotopes; theoretical models ER - TY - JOUR T1 - Fluid flow in 0.5-m scale blocks of Topopah Spring Tuff AN - 52128753; 2002-026733 AB - A laboratory experiment was conducted on a 0.5-m scale block of Topopah Spring tuff, to measure fluid flow and mechanical deformation properties under conditions that approximate the near-field environment of a potential nuclear waste repository, and to provide an intermediate-scale test case for numerical model validation. The test specimen is a 0.25 X 0.25 X 0.50 m rectangular prism bisected by an artificial (saw-cut) fracture orthogonal to the tuff fabric. Water was supplied by a point source at the center of the fracture under various pressures of up to 0.04 MPa. Both fluid flow and mechanical properties were found to be anisotropic and strongly correlated with the ash flow fabric. Fluid mass-balance measurements revealed that only minor imbibition of water occurred through the fracture surfaces and that flow rates were independent of normal stress to 14.0 MPa and temperature to 140 degrees C. Flow through the fracture occurred largely through un-correlated porosity that intersected the fracture plane. JF - Proceedings - Symposium on Rock Mechanics AU - Costantino, M S AU - Blair, S C AU - Carlson, S R A2 - Amadei, Bernard A2 - Kranz, Robert L. A2 - Scott, Gregg A. A2 - Smeallie, Peter H. Y1 - 1999 PY - 1999 DA - 1999 SP - 691 EP - 698 PB - A.A. Balkema, [location varies] VL - 37, Vol. 2 SN - 0586-3031, 0586-3031 KW - United States KW - volcanic rocks KW - igneous rocks KW - rock mechanics KW - Cenozoic KW - tuff KW - Yucca Mountain KW - Nevada KW - high-level waste KW - underground storage KW - thermal properties KW - mechanical properties KW - deformation KW - Nye County Nevada KW - porosity KW - Miocene KW - Topopah Spring Member KW - pyroclastics KW - Tertiary KW - Neogene KW - underground installations KW - shear KW - hydraulic conductivity KW - waste disposal KW - permeability KW - hydrostatic pressure KW - anisotropy KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52128753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+Symposium+on+Rock+Mechanics&rft.atitle=Fluid+flow+in+0.5-m+scale+blocks+of+Topopah+Spring+Tuff&rft.au=Costantino%2C+M+S%3BBlair%2C+S+C%3BCarlson%2C+S+R&rft.aulast=Costantino&rft.aufirst=M&rft.date=1999-01-01&rft.volume=37%2C+Vol.+2&rft.issue=&rft.spage=691&rft.isbn=905809099X&rft.btitle=&rft.title=Proceedings+-+Symposium+on+Rock+Mechanics&rft.issn=05863031&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 37th U.S. rock mechanics symposium on Rock mechanics for industry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 14 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PSRMA6 N1 - SubjectsTermNotLitGenreText - anisotropy; Cenozoic; deformation; high-level waste; hydraulic conductivity; hydrostatic pressure; igneous rocks; mechanical properties; Miocene; Neogene; Nevada; Nye County Nevada; permeability; porosity; pyroclastics; rock mechanics; shear; Tertiary; thermal properties; Topopah Spring Member; tuff; underground installations; underground storage; United States; volcanic rocks; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Thermomechanical effects on permeability for a 3-D model of YM rock AN - 52125239; 2002-026738 AB - We estimate how thermomechanical processes affect the spatial variability of fracture permeability for a 3-D model representing Topopah Spring tuff at the nuclear-waste repository horizon in Yucca Mountain, Nevada. Using a finite-difference code, we compute thermal stress changes. We evaluate possible permeability enhancement resulting from shear slip along various mapped fracture sets after 50 years of heating, for rock in the near-field environment of the proposed repository. Our results indicate permeability enhancement of a factor of 2 for regions about 10 to 30 m above drifts, for north-south striking vertical fractures. Shear slip and permeability increases of a factor of 4 can occur in regions just above drifts, for east-west striking vertical fractures. Information on how permeability may change over the lifetime of a geologic repository is important to the prediction and evaluation of repository performance. JF - Proceedings - Symposium on Rock Mechanics AU - Berge, P A AU - Blair, S C AU - Wang, H F A2 - Amadei, Bernard A2 - Kranz, Robert L. A2 - Scott, Gregg A. A2 - Smeallie, Peter H. Y1 - 1999 PY - 1999 DA - 1999 SP - 729 EP - 734 PB - A.A. Balkema, [location varies] VL - 37, Vol. 2 SN - 0586-3031, 0586-3031 KW - United States KW - volcanic rocks KW - welded tuff KW - igneous rocks KW - elastic constants KW - Nye County Nevada KW - Miocene KW - rock mechanics KW - Cenozoic KW - Topopah Spring Member KW - pyroclastics KW - fractures KW - Tertiary KW - Neogene KW - near-field KW - thermomechanical properties KW - waste disposal KW - Yucca Mountain KW - thermal effects KW - permeability KW - Nevada KW - Young's modulus KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52125239?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+Symposium+on+Rock+Mechanics&rft.atitle=Thermomechanical+effects+on+permeability+for+a+3-D+model+of+YM+rock&rft.au=Berge%2C+P+A%3BBlair%2C+S+C%3BWang%2C+H+F&rft.aulast=Berge&rft.aufirst=P&rft.date=1999-01-01&rft.volume=37%2C+Vol.+2&rft.issue=&rft.spage=729&rft.isbn=905809099X&rft.btitle=&rft.title=Proceedings+-+Symposium+on+Rock+Mechanics&rft.issn=05863031&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 37th U.S. rock mechanics symposium on Rock mechanics for industry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 24 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PSRMA6 N1 - SubjectsTermNotLitGenreText - Cenozoic; elastic constants; fractures; igneous rocks; Miocene; near-field; Neogene; Nevada; Nye County Nevada; permeability; pyroclastics; rock mechanics; Tertiary; thermal effects; thermomechanical properties; Topopah Spring Member; United States; volcanic rocks; waste disposal; welded tuff; Young's modulus; Yucca Mountain ER - TY - JOUR T1 - Coupled THM analysis of the single heater test at Yucca Mountain AN - 52125015; 2002-026736 AB - This paper presents a summary of results from the Single-Heater Test (SHT) at Yucca Mountain, Nevada. In the SHT, a horizontal, 5-m-long, line-heat source was used to heat a rock pillar for nine months. Moisture movement was monitored during and after heating using electrical-resistance tomography (ERT) and neutron-logging techniques. Results indicate drying in regions of the rock where temperature reached 60 degrees C and above. The drying zone is asymmetric and is not centered on the heater, but has lobes extending above and to the sides of the heater. Predicted temperatures agreed well with observations. A coldtrap effect was predicted, in the heater borehole, that efficiently transfers heat along the heater borehole to the excavation wall. A simple thermomechanical analysis of the SHT shows that shear zones predicted for vertical fractures coincide with regions of increased moisture content derived from ERT measurements. JF - Proceedings - Symposium on Rock Mechanics AU - Blair, S C AU - Lin, W AU - Ramirez, Abelardo L AU - Daily, William D AU - Buscheck, T A A2 - Amadei, Bernard A2 - Kranz, Robert L. A2 - Scott, Gregg A. A2 - Smeallie, Peter H. Y1 - 1999 PY - 1999 DA - 1999 SP - 715 EP - 719 PB - A.A. Balkema, [location varies] VL - 37, Vol. 2 SN - 0586-3031, 0586-3031 KW - United States KW - tomography KW - volcanic rocks KW - site exploration KW - igneous rocks KW - thermal properties KW - Nye County Nevada KW - Miocene KW - rock mechanics KW - Cenozoic KW - Topopah Spring Member KW - pyroclastics KW - Tertiary KW - Neogene KW - thermomechanical properties KW - tuff KW - hydraulic conductivity KW - Yucca Mountain KW - permeability KW - Nevada KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52125015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+Symposium+on+Rock+Mechanics&rft.atitle=Coupled+THM+analysis+of+the+single+heater+test+at+Yucca+Mountain&rft.au=Blair%2C+S+C%3BLin%2C+W%3BRamirez%2C+Abelardo+L%3BDaily%2C+William+D%3BBuscheck%2C+T+A&rft.aulast=Blair&rft.aufirst=S&rft.date=1999-01-01&rft.volume=37%2C+Vol.+2&rft.issue=&rft.spage=715&rft.isbn=905809099X&rft.btitle=&rft.title=Proceedings+-+Symposium+on+Rock+Mechanics&rft.issn=05863031&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 37th U.S. rock mechanics symposium on Rock mechanics for industry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 8 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PSRMA6 N1 - SubjectsTermNotLitGenreText - Cenozoic; hydraulic conductivity; igneous rocks; Miocene; Neogene; Nevada; Nye County Nevada; permeability; pyroclastics; rock mechanics; site exploration; Tertiary; thermal properties; thermomechanical properties; tomography; Topopah Spring Member; tuff; United States; volcanic rocks; Yucca Mountain ER - TY - JOUR T1 - Measurement of surface and borehole electromagnetic fields in 2-D and 3-D geology AN - 52085306; 2002-056122 JF - Geophysical Development Series AU - Wilt, Michael AU - Schenkel, Clifford AU - Spies, Brian AU - Torres-Verdin, Carlos AU - Alumbaugh, David A2 - Oristaglio, Michael A2 - Spies, Brian A2 - Cooper, Michael R. Y1 - 1999 PY - 1999 DA - 1999 SP - 545 EP - 563 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 7 SN - 1046-0586, 1046-0586 KW - United States KW - petroleum engineering KW - geophysical surveys KW - mapping KW - Alameda County California KW - salt water KW - oil and gas fields KW - ground water KW - California KW - steam injection KW - Kern County California KW - electromagnetic methods KW - three-dimensional models KW - crosshole methods KW - geophysical methods KW - two-and-a-half-dimensional models KW - two-dimensional models KW - measurement KW - Berkeley California KW - aquifers KW - boreholes KW - surveys KW - reservoir properties KW - Lost Hills Field 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/52085306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Development+Series&rft.atitle=Measurement+of+surface+and+borehole+electromagnetic+fields+in+2-D+and+3-D+geology&rft.au=Wilt%2C+Michael%3BSchenkel%2C+Clifford%3BSpies%2C+Brian%3BTorres-Verdin%2C+Carlos%3BAlumbaugh%2C+David&rft.aulast=Wilt&rft.aufirst=Michael&rft.date=1999-01-01&rft.volume=7&rft.issue=&rft.spage=545&rft.isbn=&rft.btitle=&rft.title=Geophysical+Development+Series&rft.issn=10460586&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 27 N1 - PubXState - OK N1 - Document feature - illus. incl. sects., block diags. N1 - Last updated - 2012-06-07 N1 - CODEN - #02687 N1 - SubjectsTermNotLitGenreText - Alameda County California; aquifers; Berkeley California; boreholes; California; crosshole methods; electromagnetic methods; geophysical methods; geophysical surveys; ground water; Kern County California; Lost Hills Field; mapping; measurement; oil and gas fields; petroleum engineering; reservoir properties; salt water; steam injection; surveys; three-dimensional models; two-and-a-half-dimensional models; two-dimensional models; United States ER - TY - BOOK T1 - Flow rate dependence of hydraulic properties of unsaturated porous media AN - 52083382; 2002-053205 JF - Characterization and measurement of the hydraulic properties of unsaturated porous media AU - Widenschild, D AU - Hopmans, J W 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 - United States KW - soils KW - Ada Oklahoma KW - Pontotoc County Oklahoma KW - Kerr Environmental Laboratory KW - hydraulics KW - unsaturated zone KW - porous materials KW - properties KW - Sacramento River KW - measurement KW - ground water KW - California KW - Oklahoma KW - tensiometers KW - hydraulic conductivity KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52083382?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=Widenschild%2C+D%3BHopmans%2C+J+W&rft.aulast=Widenschild&rft.aufirst=D&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Flow+rate+dependence+of+hydraulic+properties+of+unsaturated+porous+media&rft.title=Flow+rate+dependence+of+hydraulic+properties+of+unsaturated+porous+media&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 - 20 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Occam's inversion of 3-D electrical resistivity tomography AN - 52081421; 2002-056124 JF - Geophysical Development Series AU - LaBrecque, Douglas J AU - Morelli, Gianfranco AU - Daily, William AU - Ramirez, Abelardo AU - Lundegard, Paul A2 - Oristaglio, Michael A2 - Spies, Brian A2 - Cooper, Michael R. Y1 - 1999 PY - 1999 DA - 1999 SP - 575 EP - 590 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 7 SN - 1046-0586, 1046-0586 KW - United States KW - tomography KW - leaking underground storage tanks KW - electrodes KW - penetrometers KW - Washington KW - monitoring KW - three-dimensional models KW - Central California KW - statistical analysis KW - injection KW - geophysical methods KW - inverse problem KW - resistivity KW - remediation KW - oil seeps KW - California KW - finite element analysis KW - boreholes KW - algorithms KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52081421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3A&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Stress%3A+The+International+Journal+on+the+Biology+of+Stress&rft.atitle=Lifetime+exposure+to+traumatic+and+other+stressful+life+events+and+hair+cortisol+in+a+multi-racial%2Fethnic+sample+of+pregnant+women&rft.au=Schreier%2C+Hannah+M.+C.%3BEnlow%2C+Michelle+Bosquet%3BRitz%2C+Thomas%3BCoull%2C+Brent+A.%3BGennings%2C+Chris%3BWright%2C+Robert+O.%3BWright%2C+Rosalind+J.&rft.aulast=Schreier&rft.aufirst=Hannah+M.&rft.date=2016-01-01&rft.volume=19&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Stress%3A+The+International+Journal+on+the+Biology+of+Stress&rft.issn=10253890&rft_id=info:doi/10.3109%2F10253890.2015.1117447 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 16 N1 - PubXState - OK N1 - Document feature - illus. incl. block diags. N1 - Last updated - 2012-06-07 N1 - CODEN - #02687 N1 - SubjectsTermNotLitGenreText - algorithms; boreholes; California; Central California; electrodes; finite element analysis; geophysical methods; injection; inverse problem; leaking underground storage tanks; monitoring; oil seeps; penetrometers; remediation; resistivity; statistical analysis; three-dimensional models; tomography; United States; Washington ER - TY - JOUR T1 - ARAC simulations of the ash plum from the December 1997 eruption of Soufriere Hills Volcano, Montserrat AN - 52060329; 2002-075136 JF - Conference on Aviation, Range, and Aerospace Meteorology - Preprints AU - Pace, John C AU - Vogt, Philip J AU - Ellis, James S AU - Voight, Barry AU - Lefevre, Randy J AU - Sankey, David A AU - Sherretz, Lynn A Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 299 EP - 303 PB - American Meteorological Society, Boston, MA VL - 8 KW - geologic hazards KW - Montserrat Island KW - West Indies KW - Caribbean region KW - Atmospheric Release Advisory Capability KW - satellite methods KW - models KW - Antilles KW - eruptions KW - aircraft KW - Soufriere KW - Lesser Antilles KW - volcanoes KW - ash clouds KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52060329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+on+Aviation%2C+Range%2C+and+Aerospace+Meteorology+-+Preprints&rft.atitle=ARAC+simulations+of+the+ash+plum+from+the+December+1997+eruption+of+Soufriere+Hills+Volcano%2C+Montserrat&rft.au=Pace%2C+John+C%3BVogt%2C+Philip+J%3BEllis%2C+James+S%3BVoight%2C+Barry%3BLefevre%2C+Randy+J%3BSankey%2C+David+A%3BSherretz%2C+Lynn+A&rft.aulast=Pace&rft.aufirst=John&rft.date=1999-01-01&rft.volume=8&rft.issue=&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Conference+on+Aviation%2C+Range%2C+and+Aerospace+Meteorology+-+Preprints&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eighth conference on Aviation, range, and aerospace meteorology N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 4 N1 - PubXState - MA N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2015-04-16 N1 - CODEN - #06112 N1 - SubjectsTermNotLitGenreText - aircraft; Antilles; ash clouds; Atmospheric Release Advisory Capability; Caribbean region; eruptions; geologic hazards; Lesser Antilles; models; Montserrat Island; remote sensing; satellite methods; Soufriere; volcanoes; West Indies ER - TY - JOUR T1 - The role of capillary barriers in reducing moisture content on waste packages AN - 51877979; 2004-024012 JF - USA/CIS Joint Conference on Environmental Hydrology and Hydrogeology AU - Rosenberg, N D AU - Buscheck, T A AU - Sun, Yunwei A2 - Apps, John A. A2 - Tsang, Chin-Fu Y1 - 1999 PY - 1999 DA - 1999 SP - 102 PB - American Institute of Hydrology VL - 4 KW - United States KW - hydrology KW - backfill KW - moisture KW - Nye County Nevada KW - radioactive waste KW - waste disposal KW - Yucca Mountain KW - construction KW - Nevada KW - disposal barriers KW - design KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51877979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=USA%2FCIS+Joint+Conference+on+Environmental+Hydrology+and+Hydrogeology&rft.atitle=The+role+of+capillary+barriers+in+reducing+moisture+content+on+waste+packages&rft.au=Rosenberg%2C+N+D%3BBuscheck%2C+T+A%3BSun%2C+Yunwei&rft.aulast=Rosenberg&rft.aufirst=N&rft.date=1999-01-01&rft.volume=4&rft.issue=&rft.spage=102&rft.isbn=&rft.btitle=&rft.title=USA%2FCIS+Joint+Conference+on+Environmental+Hydrology+and+Hydrogeology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1999 annual meeting of the American Institute of Hydrology and Fourth USA/CIS joint conference on Environmental hydrology and hydrogeology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #03842 N1 - SubjectsTermNotLitGenreText - backfill; construction; design; disposal barriers; hydrology; moisture; Nevada; Nye County Nevada; radioactive waste; United States; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Infiltration relations for Yucca Mountain future climates based on surface hydrology approaches AN - 51877753; 2004-024010 JF - USA/CIS Joint Conference on Environmental Hydrology and Hydrogeology AU - Wilder, Dale G A2 - Apps, John A. A2 - Tsang, Chin-Fu Y1 - 1999 PY - 1999 DA - 1999 SP - 100 EP - 101 PB - American Institute of Hydrology VL - 4 KW - United States KW - hydrology KW - fissures KW - prediction KW - Nye County Nevada KW - radioactive waste KW - risk assessment KW - percolation KW - waste disposal KW - Yucca Mountain KW - Nevada KW - climate KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51877753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=USA%2FCIS+Joint+Conference+on+Environmental+Hydrology+and+Hydrogeology&rft.atitle=Infiltration+relations+for+Yucca+Mountain+future+climates+based+on+surface+hydrology+approaches&rft.au=Wilder%2C+Dale+G&rft.aulast=Wilder&rft.aufirst=Dale&rft.date=1999-01-01&rft.volume=4&rft.issue=&rft.spage=100&rft.isbn=&rft.btitle=&rft.title=USA%2FCIS+Joint+Conference+on+Environmental+Hydrology+and+Hydrogeology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1999 annual meeting of the American Institute of Hydrology and Fourth USA/CIS joint conference on Environmental hydrology and hydrogeology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #03842 N1 - SubjectsTermNotLitGenreText - climate; fissures; hydrology; Nevada; Nye County Nevada; percolation; prediction; radioactive waste; risk assessment; United States; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Using engineering design to control the influence of thermal processes on the hydrologic system around an underground nuclear waste repository AN - 51877033; 2004-024014 JF - USA/CIS Joint Conference on Environmental Hydrology and Hydrogeology AU - Buscheck, T A AU - Rosenberg, N D AU - Gansemer, Jim AU - Sun, Yunwei A2 - Apps, John A. A2 - Tsang, Chin-Fu Y1 - 1999 PY - 1999 DA - 1999 SP - 103 EP - 104 PB - American Institute of Hydrology VL - 4 KW - United States KW - hydrology KW - backfill KW - underground storage KW - Nye County Nevada KW - radioactive waste KW - controls KW - underground installations KW - waste disposal KW - Yucca Mountain KW - Nevada KW - design KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51877033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=USA%2FCIS+Joint+Conference+on+Environmental+Hydrology+and+Hydrogeology&rft.atitle=Using+engineering+design+to+control+the+influence+of+thermal+processes+on+the+hydrologic+system+around+an+underground+nuclear+waste+repository&rft.au=Buscheck%2C+T+A%3BRosenberg%2C+N+D%3BGansemer%2C+Jim%3BSun%2C+Yunwei&rft.aulast=Buscheck&rft.aufirst=T&rft.date=1999-01-01&rft.volume=4&rft.issue=&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=USA%2FCIS+Joint+Conference+on+Environmental+Hydrology+and+Hydrogeology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1999 annual meeting of the American Institute of Hydrology and Fourth USA/CIS joint conference on Environmental hydrology and hydrogeology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #03842 N1 - SubjectsTermNotLitGenreText - backfill; controls; design; hydrology; Nevada; Nye County Nevada; radioactive waste; underground installations; underground storage; United States; waste disposal; Yucca Mountain 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 fundamentals of calcite mineralization; surface processes of spiral growth AN - 51604504; 2006-032496 JF - LPI Contribution AU - Teng, H H AU - Dove, P M AU - De Yoreo, J 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 - 294 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - processes KW - atomic force microscopy data KW - mineralization KW - crystallization KW - crystal growth KW - kinetics KW - geochemistry KW - carbonates KW - calcite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51604504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+fundamentals+of+calcite+mineralization%3B+surface+processes+of+spiral+growth&rft.au=Teng%2C+H+H%3BDove%2C+P+M%3BDe+Yoreo%2C+J+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=Teng&rft.aufirst=H&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=294&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 - Document feature - illus. N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; calcite; carbonates; crystal growth; crystallization; geochemistry; kinetics; mineralization; processes ER - TY - JOUR T1 - Melt inclusions in subduction-related basalts; an example from the Mariana Arc AN - 51603885; 2006-032223 JF - LPI Contribution AU - Kent, Adam J R AU - Elliot, T 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 - 152 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - silicates KW - Mariana Islands KW - volcanic rocks KW - Agrigan Island KW - igneous rocks KW - Guguan Island KW - subduction KW - melts KW - pyroxene group KW - plate tectonics KW - mineral composition KW - clinopyroxene KW - lava KW - magmas KW - inclusions KW - basalts KW - Oceania KW - petrography KW - Micronesia KW - Northern Mariana Islands KW - chain silicates KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51603885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Melt+inclusions+in+subduction-related+basalts%3B+an+example+from+the+Mariana+Arc&rft.au=Kent%2C+Adam+J+R%3BElliot%2C+T%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=Kent&rft.aufirst=Adam+J&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=152&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 - 7 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 - Agrigan Island; basalts; chain silicates; clinopyroxene; Guguan Island; igneous rocks; inclusions; lava; magmas; Mariana Islands; melts; Micronesia; mineral composition; Northern Mariana Islands; Oceania; petrography; plate tectonics; pyroxene group; silicates; subduction; volcanic rocks ER - TY - JOUR T1 - Kinetics of calcite growth; analysis of surface processes and relationships to macroscopic rate laws AN - 51603118; 2006-032497 JF - LPI Contribution AU - Teng, H H AU - Dove, P M AU - De Yoreo, J 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 - 294 EP - 295 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - processes KW - atomic force microscopy data KW - rates KW - crystal growth KW - kinetics KW - carbonates KW - calcite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51603118?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Kinetics+of+calcite+growth%3B+analysis+of+surface+processes+and+relationships+to+macroscopic+rate+laws&rft.au=Teng%2C+H+H%3BDove%2C+P+M%3BDe+Yoreo%2C+J+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=Teng&rft.aufirst=H&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=294&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 - Document feature - illus. N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; calcite; carbonates; crystal growth; kinetics; processes; rates ER - TY - JOUR T1 - Timescale of aqueous activity in the early solar system AN - 51603028; 2006-032190 JF - LPI Contribution AU - Hutcheon, I D AU - Browning, L AU - Keil, K AU - Krot, A N AU - Phinney, D L AU - Prinz, M AU - Weisberg, M K 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 - 132 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - silicates KW - solar system KW - stony meteorites KW - secondary minerals KW - olivine group KW - carbonaceous chondrites KW - time scales KW - nesosilicates KW - meteorites KW - fayalite KW - orthosilicates KW - planetology KW - chondrites KW - geochemistry KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51603028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Timescale+of+aqueous+activity+in+the+early+solar+system&rft.au=Hutcheon%2C+I+D%3BBrowning%2C+L%3BKeil%2C+K%3BKrot%2C+A+N%3BPhinney%2C+D+L%3BPrinz%2C+M%3BWeisberg%2C+M+K%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=Hutcheon&rft.aufirst=I&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=132&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 - 7 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 - carbonaceous chondrites; chondrites; fayalite; geochemistry; meteorites; nesosilicates; olivine group; orthosilicates; planetology; secondary minerals; silicates; solar system; stony meteorites; time scales ER - TY - JOUR T1 - Controls on ocean pH and alkalinity; atmospheric carbon dioxide and carbonate sediments AN - 51602086; 2006-032028 JF - LPI Contribution AU - Caldeira, K AU - Berner, R 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 - 47 EP - 48 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - processes KW - carbonate sediments KW - oxidation KW - marine geology KW - atmosphere KW - carbon dioxide KW - models KW - controls KW - sediments KW - alkalinity KW - geochemistry KW - carbonates KW - world ocean KW - pH KW - 02B:Hydrochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51602086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Controls+on+ocean+pH+and+alkalinity%3B+atmospheric+carbon+dioxide+and+carbonate+sediments&rft.au=Caldeira%2C+K%3BBerner%2C+R+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=Caldeira&rft.aufirst=K&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=47&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 - 1 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 - alkalinity; atmosphere; carbon dioxide; carbonate sediments; carbonates; controls; geochemistry; marine geology; models; oxidation; pH; processes; sediments; world ocean ER - TY - JOUR T1 - Spectroscopic probes of degradation reactions promoted by metal oxide surfaces AN - 51601798; 2006-032534 JF - LPI Contribution AU - Wang, D AU - Dubbin, W E AU - Shin, J Y AU - Zavarin, M AU - Cheney, M A AU - Spiro, T G AU - Sposito, G 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 - 317 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - United States KW - degradation KW - data processing KW - ground water KW - absorption KW - triazines KW - chemical reactions KW - oxides KW - spectra KW - gibbsite KW - water pollution KW - geochemistry KW - soils KW - pollutants KW - herbicides KW - pollution KW - X-ray spectra KW - computer programs KW - organic compounds KW - detection KW - atrazine KW - soil pollution KW - metals KW - pesticides KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51601798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Spectroscopic+probes+of+degradation+reactions+promoted+by+metal+oxide+surfaces&rft.au=Wang%2C+D%3BDubbin%2C+W+E%3BShin%2C+J+Y%3BZavarin%2C+M%3BCheney%2C+M+A%3BSpiro%2C+T+G%3BSposito%2C+G%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=Wang&rft.aufirst=D&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=317&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 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - absorption; atrazine; chemical reactions; computer programs; data processing; degradation; detection; geochemistry; gibbsite; ground water; herbicides; metals; organic compounds; oxides; pesticides; pollutants; pollution; soil pollution; soils; spectra; triazines; United States; water pollution; X-ray spectra ER - TY - JOUR T1 - The effect of magnesium as an impurity on calcite growth; a model system for biomineralization AN - 51600983; 2006-032065 JF - LPI Contribution AU - Davis, K J AU - Dove, P M AU - De Yoreo, J 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 - 68 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - processes KW - biomineralization KW - alkaline earth metals KW - magnesium KW - impurities KW - crystal growth KW - calcite KW - models KW - metals KW - calcium carbonate KW - kinetics KW - geochemistry KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51600983?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+effect+of+magnesium+as+an+impurity+on+calcite+growth%3B+a+model+system+for+biomineralization&rft.au=Davis%2C+K+J%3BDove%2C+P+M%3BDe+Yoreo%2C+J+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=Davis&rft.aufirst=K&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=68&rft.isbn=&rft.btitle=&rft.title=Journal+of+Prenatal+%26+Perinatal+Psychology+%26+Health&rft.issn=10978003&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 - Document feature - illus. N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - alkaline earth metals; biomineralization; calcite; calcium carbonate; carbonates; crystal growth; geochemistry; impurities; kinetics; magnesium; metals; models; processes 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 - 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 - Electrical resistivity measurements of brine saturated porous media near reservoir conditions; Awibengkok preliminary results AN - 51208703; 2000-052987 AB - Laboratory measurements of the electrical resistivity of rocks and synthetic rocks with confining pressures up to 100 bars and temperatures between 20 and 211 degrees C were performed to further investigate how the pore-size distribution and capillarity affects boiling in porous media. Similar to previous measurements on samples from The Geysers, CA, we observed a gradual increase in resistivity when pore pressure was decreased below the phase-boundary pressure of free water, an indication that boiling is controlled not only by temperature and pressure, but also by pore size distribution. Other important phenomena observed were strong resistance fluctuations during boiling that may be chaotic, and salt deposition that caused sample cracking. If confirmed in further experiments, these results may lead to a new geophysical diagnostic for locating boiling in high permeability areas of geothermal reservoirs and for methods of permeability alteration. JF - Transactions - Geothermal Resources Council AU - Roberts, Jeff AU - Bonner, Brian AU - Duba, Al 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 - 35 EP - 39 PB - GRC - Geothermal Resources Council, Davis, CA VL - 23 SN - 0193-5933, 0193-5933 KW - United States KW - Far East KW - Indonesia KW - Java KW - temperature KW - exploration KW - California KW - laboratory studies KW - pore pressure KW - Asia KW - synthetic materials KW - experimental studies KW - pressure KW - geophysical methods KW - electrical methods KW - porous materials KW - capillarity KW - resistivity KW - samples KW - measurement KW - geothermal energy KW - western Java KW - geothermal fields KW - sample preparation KW - geothermal reservoirs KW - The Geysers KW - boiling KW - brines KW - Awibengkok Field KW - permeability KW - instruments 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/51208703?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Electrical+resistivity+measurements+of+brine+saturated+porous+media+near+reservoir+conditions%3B+Awibengkok+preliminary+results&rft.au=Roberts%2C+Jeff%3BBonner%2C+Brian%3BDuba%2C+Al%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=Roberts&rft.aufirst=Jeff&rft.date=1999-01-01&rft.volume=23&rft.issue=&rft.spage=35&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 - 14 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Asia; Awibengkok Field; boiling; brines; California; capillarity; electrical methods; experimental studies; exploration; Far East; geophysical methods; geothermal energy; geothermal fields; geothermal reservoirs; Indonesia; instruments; Java; laboratory studies; measurement; permeability; pore pressure; porous materials; pressure; resistivity; sample preparation; samples; synthetic materials; temperature; The Geysers; United States; western Java ER - TY - JOUR T1 - Cosmogenic analysis of glacial terrains in the eastern Canadian Arctic; a test for inherited nuclides and the effectiveness of glacial erosion AN - 51176734; 2001-056272 JF - Annals of Glaciology AU - Davis, P Thomas AU - Bierman, Paul R AU - Marsella, Kimberly A AU - Caffee, Marc W AU - Southon, John R AU - Kleman, Johan AU - Holmlund, Per AU - Jansson, Peter Y1 - 1999 PY - 1999 DA - 1999 SP - 181 EP - 188 PB - International Glaciological Society, Cambridge VL - 28 SN - 0260-3055, 0260-3055 KW - isotopes KW - erosion KW - cosmogenic elements KW - Holocene KW - Cenozoic KW - Al-26 KW - glacial erosion KW - radioactive isotopes KW - aluminum KW - Nunavut KW - moraines KW - Baffin Island KW - chemical composition KW - alkaline earth metals KW - Quaternary KW - Be-10 KW - Arctic region KW - Northwest Territories KW - terrains KW - Canada KW - Tumbling Glacier KW - Neoglacial KW - metals KW - Western Canada KW - Eastern Canada KW - beryllium KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51176734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+Glaciology&rft.atitle=Cosmogenic+analysis+of+glacial+terrains+in+the+eastern+Canadian+Arctic%3B+a+test+for+inherited+nuclides+and+the+effectiveness+of+glacial+erosion&rft.au=Davis%2C+P+Thomas%3BBierman%2C+Paul+R%3BMarsella%2C+Kimberly+A%3BCaffee%2C+Marc+W%3BSouthon%2C+John+R%3BKleman%2C+Johan%3BHolmlund%2C+Per%3BJansson%2C+Peter&rft.aulast=Davis&rft.aufirst=P&rft.date=1999-01-01&rft.volume=28&rft.issue=&rft.spage=181&rft.isbn=0946417237&rft.btitle=&rft.title=Annals+of+Glaciology&rft.issn=02603055&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on glaciers and the glaciated landscape N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Al-26; alkaline earth metals; aluminum; Arctic region; Baffin Island; Be-10; beryllium; Canada; Cenozoic; chemical composition; cosmogenic elements; Eastern Canada; erosion; glacial erosion; Holocene; isotopes; metals; moraines; Neoglacial; Northwest Territories; Nunavut; Quaternary; radioactive isotopes; terrains; Tumbling Glacier; Western Canada ER - TY - JOUR T1 - Past ocean-atmosphere radiocarbon age differences in the New Zealand region of the Southwest Pacific AN - 51165121; 2003-012552 JF - Geological Society of New Zealand Miscellaneous Publication AU - Sikes, E L AU - Samson, C R AU - Guilderson, T P AU - Howard, W R AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 149 PB - Geological Society of New Zealand, Lower Hutt SN - 0113-1532, 0113-1532 KW - glaciation KW - Southwest Pacific KW - isotopes KW - paleo-oceanography KW - Holocene KW - deglaciation KW - cores KW - West Pacific KW - upper Pleistocene KW - Foraminifera KW - Cenozoic KW - upper Weichselian KW - radioactive isotopes KW - Weichselian KW - carbon KW - tracers KW - Invertebrata KW - Younger Dryas KW - ocean circulation KW - Protista KW - Quaternary KW - biostratigraphy KW - paleoatmosphere KW - South Pacific KW - Pacific Ocean KW - Pleistocene KW - glacial geology KW - C-14 KW - microfossils KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51165121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+New+Zealand+Miscellaneous+Publication&rft.atitle=Past+ocean-atmosphere+radiocarbon+age+differences+in+the+New+Zealand+region+of+the+Southwest+Pacific&rft.au=Sikes%2C+E+L%3BSamson%2C+C+R%3BGuilderson%2C+T+P%3BHoward%2C+W+R%3BAnonymous&rft.aulast=Sikes&rft.aufirst=E&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=149&rft.isbn=0908678800&rft.btitle=&rft.title=Geological+Society+of+New+Zealand+Miscellaneous+Publication&rft.issn=01131532&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of New Zealand 1999 annual conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand N1 - Date revised - 2003-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biostratigraphy; C-14; carbon; Cenozoic; cores; deglaciation; Foraminifera; glacial geology; glaciation; Holocene; Invertebrata; isotopes; microfossils; ocean circulation; Pacific Ocean; paleo-oceanography; paleoatmosphere; Pleistocene; Protista; Quaternary; radioactive isotopes; South Pacific; Southwest Pacific; tracers; upper Pleistocene; upper Weichselian; Weichselian; West Pacific; Younger Dryas ER - TY - JOUR T1 - GEIMS and GeoTracker; using the Internet to manage environmental impacts and water resources AN - 50908146; 2001-016961 JF - Technical Publication Series - American Water Resources Association AU - Dooher, Brendan P AU - Happel, Anne M AU - Legg, Michael J A2 - Sakrison, Rodney A2 - Sturtevant, Peter Y1 - 1999 PY - 1999 DA - 1999 SP - 269 EP - 272 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 99-4 SN - 0731-9789, 0731-9789 KW - water quality KW - biodegradation KW - GeoTracker KW - legislation KW - data processing KW - water management KW - pollution KW - effects KW - ecosystems KW - GEIMS KW - geographic information systems KW - data bases KW - information systems KW - ecology KW - applications KW - computer networks KW - water resources KW - Internet KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50908146?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=GEIMS+and+GeoTracker%3B+using+the+Internet+to+manage+environmental+impacts+and+water+resources&rft.au=Dooher%2C+Brendan+P%3BHappel%2C+Anne+M%3BLegg%2C+Michael+J&rft.aulast=Dooher&rft.aufirst=Brendan&rft.date=1999-01-01&rft.volume=99-4&rft.issue=&rft.spage=269&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 - 1 N1 - PubXState - MD N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; biodegradation; computer networks; data bases; data processing; ecology; ecosystems; effects; GEIMS; geographic information systems; GeoTracker; information systems; Internet; legislation; pollution; water management; water quality; water resources ER - TY - JOUR T1 - Decay of a carbon dioxide Mars south polar ice cap AN - 50314536; 2001-037404 AB - Decay of a pure CO (sub 2) south polar cap of Mars is calculated based on experimentally determined CO (sub 2) rheology and an ice cap model. The maximum ice cap thickness allowed is about 2000 m. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nye, J F AU - Durham, W B AU - Schenk, P M AU - Moore, J M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1965 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - experimental studies KW - ablation KW - erosion KW - slopes KW - Viking Program KW - Mars KW - Mars Polar Lander KW - crystallinity KW - polar caps KW - carbon dioxide KW - terrestrial planets KW - models KW - planets KW - Antarctica KW - ductility KW - ice KW - shear KW - Victoria Land KW - velocity KW - thickness KW - plasticity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50314536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Decay+of+a+carbon+dioxide+Mars+south+polar+ice+cap&rft.au=Nye%2C+J+F%3BDurham%2C+W+B%3BSchenk%2C+P+M%3BMoore%2C+J+M%3BAnonymous&rft.aulast=Nye&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 - 10 N1 - PubXState - TX N1 - Document feature - illus. incl. sect. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ablation; Antarctica; carbon dioxide; crystallinity; ductility; erosion; experimental studies; ice; Mars; Mars Polar Lander; models; planets; plasticity; polar caps; shear; slopes; terrestrial planets; thickness; velocity; Victoria Land; Viking Program ER - TY - JOUR T1 - Neutron-capture production of (super 36) Cl and (super 41) Ca in two H-chondrite showers from Frontier Mountain, Antarctica AN - 50313940; 2001-037516 AB - (super 36) Cl and (super 41) Ca in the silicate phase of two Antarctic H-chondrite showers. The results are compared with model calculations to estimate the pre-atmospheric size and constrain the exposure history. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Welten, K C AU - Masarik, J AU - Nishiizumi, K AU - Caffee, M W AU - Wieler, Rainer AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1899 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - silicates KW - calcium KW - ordinary chondrites KW - stony meteorites KW - isotopes KW - Ca-41 KW - halogens KW - mass spectra KW - cosmogenic elements KW - stable isotopes KW - accelerator mass spectra KW - meteorites KW - radioactive isotopes KW - noble gases KW - neon KW - spectra KW - chondrites KW - Frontier Mountain KW - chlorine KW - alkaline earth metals KW - experimental studies KW - isotope ratios KW - Cl-36 KW - Ne-22/Ne-21 KW - H chondrites KW - atomic absorption spectra KW - models KW - Antarctica KW - neutrons KW - metals KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50313940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+production+of+%28super+36%29+Cl+and+%28super+41%29+Ca+in+two+H-chondrite+showers+from+Frontier+Mountain%2C+Antarctica&rft.au=Welten%2C+K+C%3BMasarik%2C+J%3BNishiizumi%2C+K%3BCaffee%2C+M+W%3BWieler%2C+Rainer%3BAnonymous&rft.aulast=Welten&rft.aufirst=K&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 - accelerator mass spectra; alkaline earth metals; Antarctica; atomic absorption spectra; Ca-41; calcium; chlorine; chondrites; Cl-36; cosmogenic elements; experimental studies; Frontier Mountain; H chondrites; halogens; isotope ratios; isotopes; mass spectra; metals; meteorites; models; Ne-22/Ne-21; neon; neutrons; noble gases; ordinary chondrites; radioactive isotopes; silicates; spectra; stable isotopes; stony meteorites ER - TY - JOUR T1 - Cosmogenic radionuclide studies of the nakhlites AN - 50311304; 2001-048906 AB - Due to their apparent origin on Mars, the nakhlites are of great interest. Scattered radionuclide data paint an incomplete picture of the histories of meteorites. In this study, we tried to confirm earlier radionuclide data on these meteorites from various sources. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jull, A J T AU - Klandrud, S E AU - Schnabel, C AU - Herzog, G F AU - Nishiizumi, K AU - Caffee, Marc W AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1004 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - nakhlite KW - stony meteorites KW - isotopes KW - Martian meteorites KW - Lafayette Meteorite KW - Governador Valadares Meteorite KW - cosmogenic elements KW - Mars KW - cosmochemistry KW - Nakhla Meteorite KW - achondrites KW - terrestrial planets KW - SNC Meteorites KW - planets KW - meteorites KW - radioactive isotopes KW - geochemistry KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50311304?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Cosmogenic+radionuclide+studies+of+the+nakhlites&rft.au=Jull%2C+A+J+T%3BKlandrud%2C+S+E%3BSchnabel%2C+C%3BHerzog%2C+G+F%3BNishiizumi%2C+K%3BCaffee%2C+Marc+W%3BAnonymous&rft.aulast=Jull&rft.aufirst=A+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 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; cosmochemistry; cosmogenic elements; geochemistry; Governador Valadares Meteorite; isotopes; Lafayette Meteorite; Mars; Martian meteorites; meteorites; Nakhla Meteorite; nakhlite; planets; radioactive isotopes; SNC Meteorites; stony meteorites; terrestrial planets ER - TY - JOUR T1 - The rheology of solid carbon dioxide; new measurements AN - 50307769; 2001-048069 AB - Experimental deformation of solid CO (sub 2) at low stresses under hydrostatic confining pressure indicates a very weak material (10-15 times weaker than water ice at similar conditions) with an unusually high stress exponent of n = 4.5 to 7. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Durham, W B AU - Kirby, S H AU - Stern, L A AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 2017 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - experimental studies KW - strain KW - strength KW - analog simulation KW - stress KW - rates KW - Mars KW - polar caps KW - measurement KW - carbon dioxide KW - terrestrial planets KW - solid phase KW - planets KW - laboratory studies KW - rheology KW - ice KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50307769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+rheology+of+solid+carbon+dioxide%3B+new+measurements&rft.au=Durham%2C+W+B%3BKirby%2C+S+H%3BStern%2C+L+A%3BAnonymous&rft.aulast=Durham&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 - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - analog simulation; carbon dioxide; experimental studies; ice; laboratory studies; Mars; measurement; planets; polar caps; rates; rheology; solid phase; strain; strength; stress; terrestrial planets ER - TY - JOUR T1 - High-resolution coral D14C records from the tropical and subtropical Pacific; reconstruction ocean dynamics AN - 50304421; 2002-034422 JF - International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la ...Assemblee Generale AU - Guilderson, T P AU - Schrag, D P AU - Kashgarian, M AU - Southon, J AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 180 PB - IUGG, [location varies] VL - 99, Week A KW - tropical environment KW - atomic bomb KW - isotopes KW - paleo-oceanography KW - Holocene KW - Cenozoic KW - El Nino Southern Oscillation KW - radioactive isotopes KW - Galapagos Islands KW - dates KW - carbon KW - Anthozoa KW - absolute age KW - Invertebrata KW - nuclear explosions KW - currents KW - high-resolution methods KW - Quaternary KW - time series analysis KW - explosions KW - statistical analysis KW - East Pacific Ocean Islands KW - Equatorial Pacific KW - Coelenterata KW - ocean currents KW - time scales KW - Pacific Ocean KW - reconstruction KW - Cnidaria KW - C-14 KW - upper Holocene KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50304421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=High-resolution+coral+D14C+records+from+the+tropical+and+subtropical+Pacific%3B+reconstruction+ocean+dynamics&rft.au=Guilderson%2C+T+P%3BSchrag%2C+D+P%3BKashgarian%2C+M%3BSouthon%2C+J%3BAnonymous&rft.aulast=Guilderson&rft.aufirst=T&rft.date=1999-01-01&rft.volume=99%2C+Week+A&rft.issue=&rft.spage=180&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 - 2002-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABAX N1 - SubjectsTermNotLitGenreText - absolute age; Anthozoa; atomic bomb; C-14; carbon; Cenozoic; Cnidaria; Coelenterata; currents; dates; East Pacific Ocean Islands; El Nino Southern Oscillation; Equatorial Pacific; explosions; Galapagos Islands; high-resolution methods; Holocene; Invertebrata; isotopes; nuclear explosions; ocean currents; Pacific Ocean; paleo-oceanography; Quaternary; radioactive isotopes; reconstruction; statistical analysis; time scales; time series analysis; tropical environment; upper Holocene ER - TY - JOUR T1 - Relationship between seismicity and subsurface fluids, central Coast Ranges, California AN - 50160278; 2000-032602 AB - Seismicity is irregularly distributed in the central Coast Ranges of California, with several large areas having virtually no seismic activity since 1968. Aseismic areas correlate with zones of abnormally high pore fluid pressures (AHPs) >130% of hydrostatic. Level line surveys suggest that aseismic areas have experienced significant historical uplift. Moreover, these aseismic areas show a remarkable correlation with perennial saline springs that represent technically expelled formation fluid, as indicated by their perennial flow, delta (super 18) O and delta D enrichment to +6.3 per mil and -13 per mil respectively, elevated [B] to 331 ppm, and chemistry dominated by Na and Cl. Aseismic areas are dominantly located at the center of structural blocks that are under compression and are bounded by major faults and seismicity belts. Volumetric strain within these blocks creates pockets of overpressured formation fluid that greatly reduce seismic activity while promoting aseismic uplift. Seismic cross sections reveal three-dimensional pockets of aseismicity that are floored and surrounded by scattered hypocenters. We suggest that overpressured formation fluids originate at depths of 1 to 7 km within these pockets, on the basis of Na-K-Ca geothermometry estimates that are consistent with stratigraphic information and available drill hole data. These overpressured fluid pockets may also influence seismicity on major faults, such as the upper 3 km of the active Greenville fault, which is relatively aseismic where it separates two overpressured pockets. Decreasing flow rates observed at some saline springs may represent a local transition to a period of increased seismic activity. While many studies have linked generation of earthquakes to man-made fluid overpressures, our data show that the dominant, long-term effect of AHPs is to reduce seismicity and promote uplift. Copyright 1999 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Melchiorre, E B AU - Criss, R E AU - Davisson, M L Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 921 EP - 939 PB - American Geophysical Union, Washington, DC VL - 104 IS - B1 SN - 0148-0227, 0148-0227 KW - United States KW - geologic thermometry KW - isotopes KW - uplifts KW - halogens KW - Alameda County California KW - salt water KW - stable isotopes KW - ground water KW - California KW - Santa Clara County California KW - neotectonics KW - seismicity KW - pore pressure KW - springs KW - tectonics KW - Stanislaus County California KW - geochemistry KW - Contra Costa County California KW - faults KW - chlorine KW - isotope ratios KW - alkali metals KW - sodium KW - hydrochemistry KW - Coast Ranges KW - D/H KW - San Joaquin County California KW - metals KW - hydrogen KW - earthquake prediction KW - earthquakes KW - pore water KW - 19:Seismology KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50160278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Relationship+between+seismicity+and+subsurface+fluids%2C+central+Coast+Ranges%2C+California&rft.au=Melchiorre%2C+E+B%3BCriss%2C+R+E%3BDavisson%2C+M+L&rft.aulast=Melchiorre&rft.aufirst=E&rft.date=1999-01-01&rft.volume=104&rft.issue=B1&rft.spage=921&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F1998JB900038 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 - 69 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alameda County California; alkali metals; California; chlorine; Coast Ranges; Contra Costa County California; D/H; earthquake prediction; earthquakes; faults; geochemistry; geologic thermometry; ground water; halogens; hydrochemistry; hydrogen; isotope ratios; isotopes; metals; neotectonics; pore pressure; pore water; salt water; San Joaquin County California; Santa Clara County California; seismicity; sodium; springs; stable isotopes; Stanislaus County California; tectonics; United States; uplifts DO - http://dx.doi.org/10.1029/1998JB900038 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=9&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=PLoS+ONE&rft.issn=1932-6203&rft_id=info:doi/10.1371%2Fjournal.pone.0094674 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 - Analysis of groundwater migration from artificial recharge in a large urban aquifer a simulation perspective AN - 17703760; 4815675 AB - The development and initial application of a detailed numerical model of groundwater flow and migration are reviewed for Orange County, Calif., where there was a large groundwater recharge operation. The results of isotopic analyses are first described then a 2-dimensional scoping model developed to gain insights into the groundwater movement revealed by the analyses. The production of a more realistic 3-dimensional model of groundwater flow in the forebay recharge area is discussed. The model was based on a new representation of geological heterogeneity which was known to influence local flow and transport behaviour in the subsurface. It and the isotopic analyses helped the understanding of flow paths, migration rates and residence times of recharged groundwater and the identification of source composition. These issues were important from the perspective of the regulation of recharge facilities and nearby production wells. Although isotopic estimates of groundwater age served to discriminate between several equally acceptable simulations calibrated to head data only, the results also suggested that groundwater reaching a well spanned a wide range of ages, thus demonstrating the importance of geological heterogeneity. Detailed results are shown for the region. JF - Water Resources Research AU - Tompson, AFB AU - Carle, S F AU - Rosenberg, N D AU - Maxwell, R M AD - Lawrence Livermore National Laboratory, Calif. Y1 - 1999 PY - 1999 DA - 1999 SP - 2981 EP - 2998 VL - 35 IS - 10 SN - 0043-1397, 0043-1397 KW - Discussed KW - Estimates KW - Insights KW - Scoping KW - Aqualine Abstracts KW - Flow KW - Aquifers KW - Recharge KW - Isotopes KW - Pathways KW - Retention periods KW - Behaviour KW - Calibration KW - Modelling (-general-) KW - Wells (see also Boreholes) KW - Colour KW - Analysis KW - Reviews KW - Transport KW - Migrations KW - Groundwater (see also Aquifers) KW - Subsurface KW - Geology KW - USA, California KW - Storage reservoirs KW - Heterogeneity KW - Time (see also Period of time) KW - Urban areas KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17703760?accountid=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=Water+Resources+Research&rft.atitle=Analysis+of+groundwater+migration+from+artificial+recharge+in+a+large+urban+aquifer+a+simulation+perspective&rft.au=Tompson%2C+AFB%3BCarle%2C+S+F%3BRosenberg%2C+N+D%3BMaxwell%2C+R+M&rft.aulast=Tompson&rft.aufirst=AFB&rft.date=1999-01-01&rft.volume=35&rft.issue=10&rft.spage=2981&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Recharge; Aquifers; Flow; Isotopes; Pathways; Retention periods; Behaviour; Calibration; Modelling (-general-); Wells (see also Boreholes); Colour; Transport; Reviews; Analysis; Groundwater (see also Aquifers); Migrations; Subsurface; Geology; Storage reservoirs; Heterogeneity; Urban areas; Time (see also Period of time); USA, California ER - TY - JOUR T1 - Parallel simulations of pore-scale flow through porous media AN - 17499747; 4693927 AB - Smoothed particle hydrodynamics (SPH) is a versatile technique which can be applied to single and multiphase flow through porous media. The versatility of SPH is offset by its computational expense which limits the practicability of SPH for large problems involving low Reynolds number flow. A parallel pore-scale numerical model based on SPH is described for modeling flow phenomena in porous media. Aspects of SPH which complicate parallelization are emphasized. The speed of the method is demonstrated to be proportional to the number of processors for test cases where load balance was achieved. The parallel algorithm permits the application of SPH to more complicated porous media problems than previously considered. For such problems, best performance is achieved when several soil grains are simulated by each processor. Finally, future applications of the method and possible extensions are discussed. JF - Computers and Geotechnics AU - Morris, J P AU - Zhu, Y AU - Fox, P J AD - Geophysics and Global Security Division, Lawrence Livermore National Laboratory, PO Box 808, L-219. Livermore, CA 94551-9900, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 227 EP - 246 VL - 25 IS - 4 SN - 0266-352X, 0266-352X KW - Water Resources Abstracts KW - Numerical Analysis KW - Pores KW - Hydrodynamics KW - Porous Media KW - Reynolds Number KW - Algorithms KW - Particulate Matter KW - Simulation KW - Multiphase Flow KW - Model Studies KW - SW 6020:Hydraulics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17499747?accountid=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=Computers+and+Geotechnics&rft.atitle=Parallel+simulations+of+pore-scale+flow+through+porous+media&rft.au=Morris%2C+J+P%3BZhu%2C+Y%3BFox%2C+P+J&rft.aulast=Morris&rft.aufirst=J&rft.date=1999-01-01&rft.volume=25&rft.issue=4&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Computers+and+Geotechnics&rft.issn=0266352X&rft_id=info:doi/10.1016%2FS0266-352X%2899%2900026-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Simulation; Pores; Porous Media; Hydrodynamics; Particulate Matter; Multiphase Flow; Reynolds Number; Numerical Analysis; Model Studies; Algorithms DO - http://dx.doi.org/10.1016/S0266-352X(99)00026-9 ER - TY - JOUR T1 - Isotope hydrology of southern Nevada groundwater: Stable isotopes and radiocarbon AN - 17277057; 4590128 AB - A new delta super(18)O map of southern Nevada groundwater shows a systematic decrease in delta super(18)O of similar to 5ppt from 36 degree to 39 degree N latitude. The variation is consistent with higher-latitude recharge following continuous flow paths along north-south trending graben valleys and systematically increasing in delta super(18)O due to mixing with lower-latitude, higher- delta super(18)O recharge. The data do not suggest that large masses of groundwater with unusually low delta super(18)O values were recharged during the last pluvial period as suggested by previous workers. Many delta super(18)O- delta D pairs in groundwater indicate variable amounts of evaporation relative to the global meteoric water line. The precipitation rate and type (rain versus snow) for a given geographic area controls the extent of evaporation. A "model" delta super(18)O value was calculated from evaporated groundwaters by subtracting postcloud evaporation. The distribution of these model delta super(18)O values suggest new regional groundwater flow paths previously undocumented. Dissolved inor anic carbon in groundwaters collected from deep regional flow systems typically has low super(14)C concentrations ( less than or equal to 12% modern carbon). In contrast, groundwaters collected from the carbonate rock of the Spring Mountains and alluvium of Forty Mile Canyon have higher super(14)C contents, indicating more recent recharge. Because of nonlinear mixing of super(14)C, groundwater in the regional flow system likely acquired most of its observable super(14)C from mixtures of young, locally recharged groundwater. JF - Water Resources Research AU - Davisson, M L AU - Smith, D K AU - Kenneally, J AU - Rose, T P AD - Isotope Sciences Division, Lawrence Livermore National Laboratory, Livermore, California, USA Y1 - 1999/01// PY - 1999 DA - Jan 1999 SP - 279 EP - 294 PB - American Geophysical Union VL - 35 IS - 1 SN - 0043-1397, 0043-1397 KW - USA, Nevada KW - Water Resources Abstracts KW - Oxygen isotopes KW - Groundwater recharge KW - Meteoric water KW - Evaporation KW - Radioisotopes KW - Hydrology KW - Precipitation KW - Groundwater KW - Stable isotopes KW - SW 0880:Chemical processes KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17277057?accountid=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=Isotope+hydrology+of+southern+Nevada+groundwater%3A+Stable+isotopes+and+radiocarbon&rft.au=Davisson%2C+M+L%3BSmith%2C+D+K%3BKenneally%2C+J%3BRose%2C+T+P&rft.aulast=Davisson&rft.aufirst=M&rft.date=1999-01-01&rft.volume=35&rft.issue=1&rft.spage=279&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 - Oxygen isotopes; Meteoric water; Groundwater recharge; Evaporation; Radioisotopes; Hydrology; Precipitation; Groundwater; Stable isotopes ER - TY - JOUR T1 - Application of accelerated mass spectrometry (AMS) in DNA adduct quantification and identification. AN - 69168849; 10022292 AB - DNA adducts are nucleotide bases that have been covalently modified by reactive electrophilic chemical intermediates, and have been extensively researched for their role in mutagenesis and carcinogenesis. However, many DNA adduct measurement techniques have difficulty in the quantification of adducts at realistic human exposure levels. We are using the extremely sensitive analytical technique of accelerator mass spectrometry (AMS) to study adducts either at low dose or directly in humans. AMS is a technique for measuring isotope ratios with high selectivity, attomole sensitivity (10(-18) mol) and precision of 0.5-10%, depending on isotope level and preparation method. This sensitivity and precision is being used to study the dose-response, toxicokinetics, and toxicodynamics of DNA adduct formation and removal following administration of very low doses of chemicals. JF - Toxicology letters AU - Turteltaub, K W AU - Dingley, K H AD - Biology and Biotechnology Research Program and Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA. Y1 - 1998/12/28/ PY - 1998 DA - 1998 Dec 28 SP - 435 EP - 439 VL - 102-103 SN - 0378-4274, 0378-4274 KW - DNA Adducts KW - 0 KW - Imidazoles KW - Quinoxalines KW - 2-amino-3,8-dimethylimidazo(4,5-f)quinoxaline KW - 77500-04-0 KW - 2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine KW - 909C6UN66T KW - Index Medicus KW - Sensitivity and Specificity KW - Mass Spectrometry KW - Imidazoles -- metabolism KW - Quinoxalines -- metabolism KW - DNA Adducts -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69168849?accountid=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=Toxicology+letters&rft.atitle=Application+of+accelerated+mass+spectrometry+%28AMS%29+in+DNA+adduct+quantification+and+identification.&rft.au=Turteltaub%2C+K+W%3BDingley%2C+K+H&rft.aulast=Turteltaub&rft.aufirst=K&rft.date=1998-12-28&rft.volume=102-103&rft.issue=&rft.spage=435&rft.isbn=&rft.btitle=&rft.title=Toxicology+letters&rft.issn=03784274&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-02-25 N1 - Date created - 1999-02-25 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Mechanistic model predicts a U-shaped relation of radon exposure to lung cancer risk reflected in combined occupational and US residential data. AN - 69170343; 9988374 AB - A mechanistically based cytodynamic two-stage (CD2) cancer model was shown recently to predict both ecologic US county data and underground-miner data on lung-cancer mortality (LCM) vs radon concentration, indicating biological plausibility of the apparent negative dose-response relation exhibited by the ecologic data. To further investigate this hypothesis, the CD2 model was fitted to combine age-specific LCM data vs estimated radon-exposure in white females of age 40+ years in 2821 US counties during 1950-1954 using new estimates of county-specific mean residential radon exposure, and in five cohorts of underground nonsmoking miners. The negative association of radon levels and corresponding county-level LCM rates apparent in women dying in 1950-1954 (11% of whom never smoked) was also apparent in women of age 60+ years (5% of whom never smoked). The CD2 fit obtained to the combined residential and occupational data was found to predict the combined data using biologically plausible parameter values, and also to predict inverse dose-rate effects exhibited in nonsmoking miner data to which the CD2 model was not fit. These results are consistent with the hypothesis that residential radon exposure has a nonlinear U-shaped relation to LCM risk, and that current linear extrapolation models substantially overestimate such risk. JF - Human & experimental toxicology AU - Bogen, K T AD - Health and Ecological Assessment Division, Lawrence Livermore National Laboratory, University of California, Livermore 94550, USA. Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 691 EP - 6; discussion 701-4, 708-18 VL - 17 IS - 12 SN - 0960-3271, 0960-3271 KW - Radon KW - Q74S4N8N1G KW - Index Medicus KW - Dose-Response Relationship, Drug KW - Humans KW - Adult KW - Environmental Exposure KW - Smoking -- adverse effects KW - Aged KW - Middle Aged KW - Mining KW - Female KW - Lung Neoplasms -- mortality KW - Lung Neoplasms -- chemically induced KW - Models, Biological KW - Risk Assessment KW - Radon -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69170343?accountid=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=Human+%26+experimental+toxicology&rft.atitle=Mechanistic+model+predicts+a+U-shaped+relation+of+radon+exposure+to+lung+cancer+risk+reflected+in+combined+occupational+and+US+residential+data.&rft.au=Bogen%2C+K+T&rft.aulast=Bogen&rft.aufirst=K&rft.date=1998-12-01&rft.volume=17&rft.issue=12&rft.spage=691&rft.isbn=&rft.btitle=&rft.title=Human+%26+experimental+toxicology&rft.issn=09603271&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-10-21 N1 - Date created - 1999-10-21 N1 - Date revised - 2017-02-18 N1 - SuppNotes - Comment In: Hum Exp Toxicol. 1998 Dec;17(12):705-7; discussion 716-8 [9988376] N1 - Last updated - 2017-02-23 ER - TY - JOUR T1 - (super 53) Mn- (super 53) Cr dating of fayalite formation in the CV3 Chondrite Mokoia; evidence for asteroidal alteration AN - 52526732; 1999-007831 JF - Science AU - Hutcheon, Ian D AU - Krot, Alexander N AU - Keil, Klaus AU - Phinney, Douglas L AU - Scott, Edward R D Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 1865 EP - 1867 PB - American Association for the Advancement of Science, Washington, DC VL - 282 IS - 5395 SN - 0036-8075, 0036-8075 KW - silicates KW - stony meteorites KW - asteroids KW - isotopes KW - calcium-aluminum inclusions KW - halogens KW - olivine group KW - CV chondrites KW - manganese KW - stable isotopes KW - electron probe data KW - Mn-53 KW - meteorites KW - iodine KW - Al-26 KW - radioactive isotopes KW - I-129 KW - fayalite KW - dates KW - aluminum KW - inclusions KW - orthosilicates KW - absolute age KW - chondrites KW - chromium KW - secondary minerals KW - carbonaceous chondrites KW - metamorphism KW - Mn/Cr KW - hydrothermal conditions KW - solar nebula KW - nesosilicates KW - Cr-53/Cr-52 KW - metals KW - Mokaia Meteorite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52526732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=%28super+53%29+Mn-+%28super+53%29+Cr+dating+of+fayalite+formation+in+the+CV3+Chondrite+Mokoia%3B+evidence+for+asteroidal+alteration&rft.au=Hutcheon%2C+Ian+D%3BKrot%2C+Alexander+N%3BKeil%2C+Klaus%3BPhinney%2C+Douglas+L%3BScott%2C+Edward+R+D&rft.aulast=Hutcheon&rft.aufirst=Ian&rft.date=1998-12-01&rft.volume=282&rft.issue=5395&rft.spage=1865&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 - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - absolute age; Al-26; aluminum; asteroids; calcium-aluminum inclusions; carbonaceous chondrites; chondrites; chromium; Cr-53/Cr-52; CV chondrites; dates; electron probe data; fayalite; halogens; hydrothermal conditions; I-129; inclusions; iodine; isotopes; manganese; metals; metamorphism; meteorites; Mn-53; Mn/Cr; Mokaia Meteorite; nesosilicates; olivine group; orthosilicates; radioactive isotopes; secondary minerals; silicates; solar nebula; stable isotopes; stony meteorites ER - TY - JOUR T1 - Biologically mediated dissolution of volcanic glass in seawater AN - 52514985; 1999-009358 AB - We studied the effects of biological mediation on the dissolution of basaltic glass in seawater. Experiments with typical seawater microbial populations were contrasted with a sterile control, and reactions were monitored chemically and isotopically. Biologically mediated experiments produce twice the mass of authigenic phases than abiotic experiments and the phases are different. Abiotic alteration of glass dissolves basaltic Si and Ca and scavenges seawater Mg, while biotic alteration removes Ca from seawater. Such opposing behavior of Ca and Mg in biotic and abiotic alteration of basaltic glass may have important implications for the carbon cycle and the exchange processes between ocean crust and seawater. (super 87) Sr/ (super 86) Sr data of glass and alteration products suggest that biological mediation enhances both the diffusion of seawater Sr into glass by a factor of 3-4, and the dissolution of basaltic Sr into seawater by a factor of 20-40. The dependence of chemical exchange processes between seawater and glass on biological activity implies that chemical fluxes from water-rock interaction at low temperatures may change as life on Earth evolves. JF - Earth and Planetary Science Letters AU - Staudigel, H AU - Yayanos, A AU - Chastain, R AU - Davies, G AU - Verdurmen, E A T AU - Schiffman, P AU - Bourcier, R AU - de Baar, H Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 233 EP - 244 PB - Elsevier, Amsterdam VL - 164 IS - 1-2 SN - 0012-821X, 0012-821X KW - sea water KW - volcanic rocks KW - glasses KW - isotopes KW - igneous rocks KW - solution KW - stable isotopes KW - laboratory studies KW - chemical reactions KW - water-rock interaction KW - geochemistry KW - alkaline earth metals KW - experimental studies KW - isotope ratios KW - biochemistry KW - Sr-87/Sr-86 KW - sample preparation KW - biogenic processes KW - volcanic glass KW - metals KW - strontium KW - SEM data KW - instruments KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52514985?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Biologically+mediated+dissolution+of+volcanic+glass+in+seawater&rft.au=Staudigel%2C+H%3BYayanos%2C+A%3BChastain%2C+R%3BDavies%2C+G%3BVerdurmen%2C+E+A+T%3BSchiffman%2C+P%3BBourcier%2C+R%3Bde+Baar%2C+H&rft.aulast=Staudigel&rft.aufirst=H&rft.date=1998-12-01&rft.volume=164&rft.issue=1-2&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2FS0012-821X%2898%2900207-6 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 - 19 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; biochemistry; biogenic processes; chemical reactions; experimental studies; geochemistry; glasses; igneous rocks; instruments; isotope ratios; isotopes; laboratory studies; metals; microorganisms; sample preparation; sea water; SEM data; solution; Sr-87/Sr-86; stable isotopes; strontium; volcanic glass; volcanic rocks; water-rock interaction DO - http://dx.doi.org/10.1016/S0012-821X(98)00207-6 ER - TY - JOUR T1 - Sulfur isotope variability in biogenic pyrite; reflections of heterogeneous bacterial colonization? AN - 52506365; 1999-018671 AB - The top 20 cm of sediments at active cold seeps in Monterey Bay, coastal California, contain framboidal pyrite that occurs as infillings and pseudomorphs of the chambers of the tests of foraminifera and rarely as irregularly shaped grains. Sulfur isotope compositions obtained with the ion microprobe show depletions in (super 34) S (delta (super 34) S = -41 to -5 per mil, CDT), and large variations both within and among these pyrite grains. Intergranular differences in delta (super 34) S values in the same sediment are as large as 35 per mil, and intragranular zoning reaches 15 per mil. Zoning is regular in some grains, with systematic isotope changes from core to rim or from one foraminiferal chamber to another, but irregular in others. The regular zoning is consistent with an increase in (super 34) S through time. Backscattered-electron imaging reveals three types of pyrite: isolated framboids in a porous aggregation ("PF-pyrite"), agglomerated framboids with cementing interstitial pyrite ("F+I-pyrite"), and recrystallized pyrite with isolated relicts of framboids ("RF-pyrite"). In individual grains, RF-pyrite cores grade into F+I-pyrite toward grain rims, and F+I-pyrite grades into PF-pyrite at the grain edges. These textures are consistent with a paragenetic sequence whereby framboids first agglomerate (PF-pyrite), then cement (F-I-pyrite), and finally recrystallize (RF-pyrite). The delta (super 34) S values of RF-pyrite are generally lower than that of F+I-pyrite; if the paragenetic sequence is correct, then this trend parallels the regular core-rim isotopic zoning observed in some grains. The implied increase in delta (super 34) S with time is consistent with Rayleigh fractionation of sulfur in a closed system. Bacteria are intimately involved in the production of pyrite from our samples, and heterogeneous colonization by bacteria provides a simple explanation for the sulfur isotope heterogeneity among and within grains: The foraminifera provide open space for colonization and local nutrients for bacterial growth, whereas the cell walls of the bacteria may provide a local nucleation site for sulfides. If so, then initial colonization is reflected in lower delta (super 34) S values, whereas later bacterial emigration to other foraminifera chambers is indicated by higher delta (super 34) S values. JF - American Mineralogist AU - Kohn, Matthew J AU - Riciputi, Lee R AU - Stakes, Debra AU - Orange, Daniel L Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 1454 EP - 1468 PB - Mineralogical Society of America, Washington, DC VL - 83 IS - 11-12, Part 2 SN - 0003-004X, 0003-004X KW - United States KW - biomineralization KW - Protista KW - isotopes KW - textures KW - isotope ratios KW - stable isotopes KW - colonization KW - Foraminifera KW - California KW - marine sediments KW - biogenic processes KW - S-34/S-32 KW - Monterey Bay KW - iron sulfides KW - framboidal texture KW - bacteria KW - sediments KW - sulfur KW - Invertebrata KW - pyrite KW - sulfides KW - microfossils KW - 02D:Isotope geochemistry KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52506365?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Sulfur+isotope+variability+in+biogenic+pyrite%3B+reflections+of+heterogeneous+bacterial+colonization%3F&rft.au=Kohn%2C+Matthew+J%3BRiciputi%2C+Lee+R%3BStakes%2C+Debra%3BOrange%2C+Daniel+L&rft.aulast=Kohn&rft.aufirst=Matthew&rft.date=1998-12-01&rft.volume=83&rft.issue=11-12%2C+Part+2&rft.spage=1454&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 61 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; biomineralization; California; colonization; Foraminifera; framboidal texture; Invertebrata; iron sulfides; isotope ratios; isotopes; marine sediments; microfossils; Monterey Bay; Protista; pyrite; S-34/S-32; sediments; stable isotopes; sulfides; sulfur; textures; United States ER - TY - JOUR T1 - Shocked quartz; a (super 29) Si magic-angle-spinning nuclear magnetic resonance study AN - 52414332; 2000-001211 AB - Quantitative (super 29) Si NMR spectra of single-crystal alpha -quartz, shock compressed to 12-38 GPa and recovered, provide new information about the complex response of quartz to shock loading. Spectra from samples recovered from shock pressures of 12-20 GPa show a broadening of the (super 29) Si NMR peak and the development of asymmetry toward lower NMR frequency (indicating an increase in the mean Si-O-Si intertetrahedral bond angle). NMR spectra of samples shock compressed above approximately 25 GPa show increasing amounts of a separate amorphous phase of SiO (sub 2) with a mean Si-O-Si bond angle roughly 5 degrees narrower, and 10-15% denser, than fused SiO (sub 2) . Small amounts of crystalline material remain with a mean Si-O-Si bond angle up to 3 degrees larger than unshocked alpha -quartz. The recovery of dense glass indicates that post-shock temperatures were sufficiently low to also preserve stishovite, had any been created in our experiments. The paucity of stishovite or (super [6]) Si in an amorphous phase in our recovered samples suggests that the formation of stable, high-coordinated Si is kinetically hindered in shock compression experiments up to about 35-40 GPa, except in regions of high temperature, such as planar deformation features (PDFs), microfaults (pseudotachylites), or voids. JF - American Mineralogist AU - Fiske, Peter S AU - Nellis, William J AU - Xu, Zhi AU - Stebbins, Jonathan F Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 1285 EP - 1292 PB - Mineralogical Society of America, Washington, DC VL - 83 IS - 11-12, Part 1 SN - 0003-004X, 0003-004X KW - silicates KW - experimental studies KW - shock waves KW - pressure KW - silica minerals KW - phase transitions KW - stishovite KW - impacts KW - high pressure KW - NMR spectra KW - laboratory studies KW - single-crystal method KW - quartz KW - framework silicates KW - spectra KW - magic-angle-spinning NMR spectra KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52414332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Shocked+quartz%3B+a+%28super+29%29+Si+magic-angle-spinning+nuclear+magnetic+resonance+study&rft.au=Fiske%2C+Peter+S%3BNellis%2C+William+J%3BXu%2C+Zhi%3BStebbins%2C+Jonathan+F&rft.aulast=Fiske&rft.aufirst=Peter&rft.date=1998-12-01&rft.volume=83&rft.issue=11-12%2C+Part+1&rft.spage=1285&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - experimental studies; framework silicates; high pressure; impacts; laboratory studies; magic-angle-spinning NMR spectra; NMR spectra; phase transitions; pressure; quartz; shock waves; silica minerals; silicates; single-crystal method; spectra; stishovite ER - TY - JOUR T1 - Abrupt Holocene climate change in the Santa Barbara Basin; results from decadal-scale oxygen isotope records AN - 904458349; 2011-097942 JF - Eos, Transactions, American Geophysical Union AU - Friddell, Julie E AU - Thunell, Robert C AU - Kashgarian, Michael AU - Guilderson, Tom AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 494 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - decadal variations KW - Protista KW - Quaternary KW - oxygen KW - isotopes KW - isotope ratios KW - O-18/O-16 KW - Santa Barbara Basin KW - Holocene KW - stable isotopes KW - cores KW - climate change KW - Foraminifera KW - Cenozoic KW - California KW - radioactive isotopes KW - carbon KW - Invertebrata KW - C-14 KW - microfossils KW - sediment traps KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904458349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+Holocene+climate+change+in+the+Santa+Barbara+Basin%3B+results+from+decadal-scale+oxygen+isotope+records&rft.au=Friddell%2C+Julie+E%3BThunell%2C+Robert+C%3BKashgarian%2C+Michael%3BGuilderson%2C+Tom%3BAnonymous&rft.aulast=Friddell&rft.aufirst=Julie&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=494&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 - 2011-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - C-14; California; carbon; Cenozoic; climate change; cores; decadal variations; Foraminifera; Holocene; Invertebrata; isotope ratios; isotopes; microfossils; O-18/O-16; oxygen; Protista; Quaternary; radioactive isotopes; Santa Barbara Basin; sediment traps; stable isotopes; United States ER - TY - JOUR T1 - Audio frequency observations of local earthquakes at 2000 m depth in the Long Valley exploratory well, California AN - 742900386; 2010-035202 JF - Eos, Transactions, American Geophysical Union AU - Prejean, Stephanie AU - Ellsworth, William AU - Wilkinson, S AU - Rock, D AU - Harben, P AU - Kasameyer, P AU - Ito, H AU - Ohminato, T AU - Malin, P AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 651 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - P-waves KW - digital data KW - body waves KW - three-component seismographs KW - Mono County California KW - Long Valley exploratory well KW - elastic waves KW - frequency KW - seismographs KW - Long Valley Caldera KW - California KW - boreholes KW - metapelite KW - seismicity KW - metamorphic rocks KW - metasedimentary rocks KW - seismic waves KW - seismic networks KW - S-waves KW - instruments KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742900386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Audio+frequency+observations+of+local+earthquakes+at+2000+m+depth+in+the+Long+Valley+exploratory+well%2C+California&rft.au=Prejean%2C+Stephanie%3BEllsworth%2C+William%3BWilkinson%2C+S%3BRock%2C+D%3BHarben%2C+P%3BKasameyer%2C+P%3BIto%2C+H%3BOhminato%2C+T%3BMalin%2C+P%3BAnonymous&rft.aulast=Prejean&rft.aufirst=Stephanie&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=651&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 - body waves; boreholes; California; digital data; elastic waves; frequency; instruments; Long Valley Caldera; Long Valley exploratory well; metamorphic rocks; metapelite; metasedimentary rocks; Mono County California; P-waves; S-waves; seismic networks; seismic waves; seismicity; seismographs; three-component seismographs; United States ER - TY - JOUR T1 - Pn velocity of the Tethyan collision zone; from Western Europe to western Asia AN - 742898834; 2010-035217 JF - Eos, Transactions, American Geophysical Union AU - McNamara, Daniel E AU - Schultz, Craig AU - Walter, William R AU - Hansen, Roger AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 653 EP - 654 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - Tethys KW - P-waves KW - sedimentary basins KW - Pn-waves KW - mantle KW - Europe KW - elastic waves KW - continental crust KW - suture zones KW - Indian Ocean KW - volcanism KW - basins KW - propagation KW - Asia KW - Middle East KW - Zagros KW - upper mantle KW - body waves KW - Western Europe KW - plate collision KW - Persian Gulf KW - inverse problem KW - Arabian Sea KW - plate tectonics KW - velocity structure KW - traveltime KW - seismic waves KW - crust KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742898834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Pn+velocity+of+the+Tethyan+collision+zone%3B+from+Western+Europe+to+western+Asia&rft.au=McNamara%2C+Daniel+E%3BSchultz%2C+Craig%3BWalter%2C+William+R%3BHansen%2C+Roger%3BAnonymous&rft.aulast=McNamara&rft.aufirst=Daniel&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=653&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 - Arabian Sea; Asia; basins; body waves; Comprehensive Test Ban Treaty; continental crust; crust; elastic waves; Europe; Indian Ocean; inverse problem; mantle; Middle East; P-waves; Persian Gulf; plate collision; plate tectonics; Pn-waves; propagation; sedimentary basins; seismic waves; suture zones; Tethys; traveltime; upper mantle; velocity structure; volcanism; Western Europe; Zagros ER - TY - JOUR T1 - Observations of earthquakes at very high resolution; implications for fractal deformation and earthquake hazard models AN - 742896842; 2010-035188 JF - Eos, Transactions, American Geophysical Union AU - Foxall, William AU - Nadeau, Robert M AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 649 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - Parkfield earthquakes KW - models KW - high-resolution methods KW - imagery KW - geologic hazards KW - seismicity KW - time factor KW - San Andreas Fault KW - deformation KW - fractals KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742896842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+earthquakes+at+very+high+resolution%3B+implications+for+fractal+deformation+and+earthquake+hazard+models&rft.au=Foxall%2C+William%3BNadeau%2C+Robert+M%3BAnonymous&rft.aulast=Foxall&rft.aufirst=William&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=649&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 - deformation; earthquakes; fractals; geologic hazards; high-resolution methods; imagery; models; Parkfield earthquakes; San Andreas Fault; seismicity; time factor ER - TY - JOUR T1 - The role of fluids in crustal stress evolution following the 1992 Landers earthquake AN - 742896693; 2010-035185 JF - Eos, Transactions, American Geophysical Union AU - Bosl, William J AU - Nur, Amos AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 648 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - stress KW - porous materials KW - mechanical properties KW - elastic waves KW - fluid dynamics KW - Landers earthquake 1992 KW - seismicity KW - fluid pressure KW - pore pressure KW - velocity KW - seismic waves KW - earthquakes KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742896693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+role+of+fluids+in+crustal+stress+evolution+following+the+1992+Landers+earthquake&rft.au=Bosl%2C+William+J%3BNur%2C+Amos%3BAnonymous&rft.aulast=Bosl&rft.aufirst=William&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=648&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 - crust; earthquakes; elastic waves; fluid dynamics; fluid pressure; Landers earthquake 1992; mechanical properties; pore pressure; porous materials; seismic waves; seismicity; stress; velocity ER - TY - JOUR T1 - Evidence for Proterozoic and Late Cretaceous-early Tertiary ore-forming events in the Coeur d'Alene District, Idaho and Montana; discussion AN - 52534508; 1999-000532 JF - Economic Geology and the Bulletin of the Society of Economic Geologists AU - Criss, R E AU - Eaton, G F Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 1103 EP - 1105 PB - Economic Geology Publishing Company, Lancaster, PA VL - 93 IS - 7 SN - 0361-0128, 0361-0128 KW - United States KW - mineral deposits, genesis KW - Idaho KW - upper Precambrian KW - Precambrian KW - oxygen KW - isotopes KW - Cretaceous KW - isotope ratios KW - Proterozoic KW - O-18/O-16 KW - Upper Cretaceous KW - stable isotopes KW - Mesozoic KW - lower Tertiary KW - Montana KW - Idaho Batholith KW - Cenozoic KW - Tertiary KW - Coeur d'Alene mining district KW - metal ores KW - mineralization KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52534508?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Economic+Geology+and+the+Bulletin+of+the+Society+of+Economic+Geologists&rft.atitle=Evidence+for+Proterozoic+and+Late+Cretaceous-early+Tertiary+ore-forming+events+in+the+Coeur+d%27Alene+District%2C+Idaho+and+Montana%3B+discussion&rft.au=Criss%2C+R+E%3BEaton%2C+G+F&rft.aulast=Criss&rft.aufirst=R&rft.date=1998-11-01&rft.volume=93&rft.issue=7&rft.spage=1103&rft.isbn=&rft.btitle=&rft.title=Economic+Geology+and+the+Bulletin+of+the+Society+of+Economic+Geologists&rft.issn=03610128&rft_id=info:doi/10.2113%2Fgsecongeo.93.7.1103 L2 - http://www.segweb.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 31 N1 - PubXState - PA N1 - Document feature - 1 table N1 - SuppNotes - For reference to original see Leach, D. L., Hofstra, A. H., Church, S. E., Snee, L. W., Vaughn, R. B. and Zartman, R. E., Econ. Geol., Vol. 93, No. 3, p. 347-359, May 1998 N1 - Last updated - 2012-06-07 N1 - CODEN - ECGLAL N1 - SubjectsTermNotLitGenreText - Cenozoic; Coeur d'Alene mining district; Cretaceous; Idaho; Idaho Batholith; isotope ratios; isotopes; lower Tertiary; Mesozoic; metal ores; mineral deposits, genesis; mineralization; Montana; O-18/O-16; oxygen; Precambrian; Proterozoic; stable isotopes; Tertiary; United States; Upper Cretaceous; upper Precambrian DO - http://dx.doi.org/10.2113/gsecongeo.93.7.1103 ER - TY - JOUR T1 - Noble gases, stable isotopes, and radiocarbon as tracers of flow in the Dakota Aquifer, Colorado and Kansas AN - 52530617; 1999-007014 AB - A suite of chemical and isotope tracers (dissolved noble gases, stable isotopes of water, radiocarbon, and Cl) have been analyzed along a flow path in the Dakota aquifer system to determine likely recharge sources, ground water residence times, and the extent of mixing between local and intermediate flow systems, presumably caused by large well screens. Three water types were distinguished with the tracers, each having a very different history. Two of the water types were found in south-eastern Colorado where the Dakota is poorly confined. The tracer data suggest that the first group recharged locally during the last few thousand years and the second group was composed of ground water that recharged earlier during a cooler climate, presumably during the last glacial period (LGP) and mixed aged water. The paleotemperature record archived in this groundwater system indicates that south-eastern Colorado was about 5 degrees C cooler during the LGP than during the late Holocene. Similar temperature changes derived from dissolved noble gases in other aquifer systems have been reported earlier for the south-western United States. The third water type was located down gradient of the first two in the confined Dakota in western and central Kansas. Groundwater residence time of this water mass is on the order of 104-105 yrs and its recharge location is near the Colorado and Kansas border down gradient of the other water types. The study shows the importance of using multiple tracers when investigating ground water systems. JF - Journal of Hydrology AU - Clark, Jordan F AU - Davisson, M Lee AU - Hudson, G Bryant AU - Macfarlane, P Allen Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 151 EP - 167 PB - Elsevier, Amsterdam VL - 211 IS - 1-4 SN - 0022-1694, 0022-1694 KW - United States KW - oxygen KW - isotopes KW - characterization KW - paleoclimatology KW - stable isotopes KW - ground water KW - geochemical indicators KW - regional patterns KW - Cenozoic KW - radioactive isotopes KW - major elements KW - paleotemperature KW - noble gases KW - mixing KW - carbon KW - movement KW - tracers KW - Great Plains KW - geochemistry KW - North America KW - Quaternary KW - minor elements KW - paleohydrology KW - isotope ratios KW - well screens KW - O-18/O-16 KW - hydrochemistry KW - aquifers KW - recharge KW - Kansas KW - upper Quaternary KW - C-14 KW - Colorado KW - Dakota Aquifer KW - 24:Quaternary geology KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52530617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Noble+gases%2C+stable+isotopes%2C+and+radiocarbon+as+tracers+of+flow+in+the+Dakota+Aquifer%2C+Colorado+and+Kansas&rft.au=Clark%2C+Jordan+F%3BDavisson%2C+M+Lee%3BHudson%2C+G+Bryant%3BMacfarlane%2C+P+Allen&rft.aulast=Clark&rft.aufirst=Jordan&rft.date=1998-11-01&rft.volume=211&rft.issue=1-4&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1999-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - aquifers; C-14; carbon; Cenozoic; characterization; Colorado; Dakota Aquifer; geochemical indicators; geochemistry; Great Plains; ground water; hydrochemistry; isotope ratios; isotopes; Kansas; major elements; minor elements; mixing; movement; noble gases; North America; O-18/O-16; oxygen; paleoclimatology; paleohydrology; paleotemperature; Quaternary; radioactive isotopes; recharge; regional patterns; stable isotopes; tracers; United States; upper Quaternary; well screens ER - TY - JOUR T1 - Summary of LLNL/UC LUFT clean-up recommendations AN - 52442166; 1999-062116 JF - Report - California Water Resources Center AU - Rice, David W AU - Dooher, Brendan P AU - Cullen, Stephen J AU - Everett, Lorne G AU - Kastenberg, William E A2 - DeVries, Johannes J. A2 - Woled, Jeff Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 35 EP - 43 PB - University of California, California Water Resources Center, Davis, CA VL - 95 SN - 0575-4968, 0575-4968 KW - United States KW - programs KW - leaking underground storage tanks KW - underground storage KW - legislation KW - government agencies KW - pollution KW - petroleum products KW - bioremediation KW - seepage KW - remediation KW - California KW - mitigation KW - fuel tanks KW - planning KW - underground installations KW - water resources KW - water pollution KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52442166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Report+-+California+Water+Resources+Center&rft.atitle=Summary+of+LLNL%2FUC+LUFT+clean-up+recommendations&rft.au=Rice%2C+David+W%3BDooher%2C+Brendan+P%3BCullen%2C+Stephen+J%3BEverett%2C+Lorne+G%3BKastenberg%2C+William+E&rft.aulast=Rice&rft.aufirst=David&rft.date=1998-11-01&rft.volume=95&rft.issue=&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Report+-+California+Water+Resources+Center&rft.issn=05754968&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-first biennial conference on Ground water N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 41 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - RUCCD8 N1 - SubjectsTermNotLitGenreText - bioremediation; California; fuel tanks; government agencies; leaking underground storage tanks; legislation; mitigation; petroleum products; planning; pollution; programs; remediation; seepage; underground installations; underground storage; United States; water pollution; water resources ER - TY - JOUR T1 - Risk-based corrective action; application to California LUFT sites AN - 52439741; 1999-062121 JF - Report - California Water Resources Center AU - Kastenberg, William E AU - Rice, David AU - Dooher, Brendan P AU - Cullen, Stephen J AU - Everett, Lorne G A2 - DeVries, Johannes J. A2 - Woled, Jeff Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 79 EP - 86 PB - University of California, California Water Resources Center, Davis, CA VL - 95 SN - 0575-4968, 0575-4968 KW - United States KW - programs KW - leaking underground storage tanks KW - underground storage KW - government agencies KW - pollution KW - petroleum KW - bioremediation KW - remediation KW - ground water KW - California KW - progress report KW - objectives KW - underground installations KW - report KW - risk assessment KW - applications KW - California State Water Resources Control Board KW - design KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52439741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Report+-+California+Water+Resources+Center&rft.atitle=Risk-based+corrective+action%3B+application+to+California+LUFT+sites&rft.au=Kastenberg%2C+William+E%3BRice%2C+David%3BDooher%2C+Brendan+P%3BCullen%2C+Stephen+J%3BEverett%2C+Lorne+G&rft.aulast=Kastenberg&rft.aufirst=William&rft.date=1998-11-01&rft.volume=95&rft.issue=&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Report+-+California+Water+Resources+Center&rft.issn=05754968&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-first biennial conference on Ground water N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 1 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - RUCCD8 N1 - SubjectsTermNotLitGenreText - applications; bioremediation; California; California State Water Resources Control Board; design; government agencies; ground water; leaking underground storage tanks; objectives; petroleum; pollution; programs; progress report; remediation; report; risk assessment; underground installations; underground storage; United States ER - TY - JOUR T1 - Guest editorial; Special section on visualization; an introduction AN - 52365358; 2000-032577 JF - Advances in Water Resources AU - Tompson, Andrew F B A2 - Hassanizadeh, S. M. A2 - Miller, C. T. A2 - Parlange, M. B. Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 201 PB - Elsevier, Oxford VL - 22 IS - 3 SN - 0309-1708, 0309-1708 KW - visualization KW - graphic display KW - data bases KW - water resources KW - instruments KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52365358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Guest+editorial%3B+Special+section+on+visualization%3B+an+introduction&rft.au=Tompson%2C+Andrew+F+B&rft.aulast=Tompson&rft.aufirst=Andrew+F&rft.date=1998-11-01&rft.volume=22&rft.issue=3&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - data bases; graphic display; instruments; visualization; water resources ER - TY - JOUR T1 - Fluid flow in 0.5-m scale blocks of Topopah Spring Tuff AN - 51840728; 2004-043951 JF - Eos, Transactions, American Geophysical Union AU - Costantino, Marc S AU - Blair, Stephen C AU - Carlson, Steven R AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 801 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - volcanic rocks KW - igneous rocks KW - waste disposal sites KW - fluid dynamics KW - radioactive waste KW - Cenozoic KW - laboratory studies KW - tuff KW - Yucca Mountain KW - Nevada KW - experimental studies KW - numerical models KW - roughness KW - pollution KW - mechanical properties KW - migration of elements KW - deformation KW - Nye County Nevada KW - Miocene KW - aquifers KW - Topopah Spring Member KW - pyroclastics KW - Tertiary KW - transmissivity KW - Neogene KW - waste disposal KW - underground disposal KW - point sources KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51840728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Fluid+flow+in+0.5-m+scale+blocks+of+Topopah+Spring+Tuff&rft.au=Costantino%2C+Marc+S%3BBlair%2C+Stephen+C%3BCarlson%2C+Steven+R%3BAnonymous&rft.aulast=Costantino&rft.aufirst=Marc&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=801&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 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 - aquifers; Cenozoic; deformation; experimental studies; fluid dynamics; igneous rocks; laboratory studies; mechanical properties; migration of elements; Miocene; Neogene; Nevada; numerical models; Nye County Nevada; permeability; point sources; pollution; pyroclastics; radioactive waste; roughness; Tertiary; Topopah Spring Member; transmissivity; tuff; underground disposal; United States; volcanic rocks; waste disposal; waste disposal sites; Yucca Mountain ER - TY - JOUR T1 - Direct imaging of fractures by profilometry AN - 51839284; 2004-043946 JF - Eos, Transactions, American Geophysical Union AU - Durham, William B AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 800 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - scale factor KW - imagery KW - experimental studies KW - numerical models KW - three-dimensional models KW - structural analysis KW - roughness KW - preferential flow KW - fluid dynamics KW - deformation KW - simulation KW - measurement KW - models KW - laboratory studies KW - fractures KW - profilometry KW - permeability KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51839284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Direct+imaging+of+fractures+by+profilometry&rft.au=Durham%2C+William+B%3BAnonymous&rft.aulast=Durham&rft.aufirst=William&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=800&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 - deformation; experimental studies; fluid dynamics; fractures; imagery; laboratory studies; measurement; models; numerical models; permeability; preferential flow; profilometry; roughness; scale factor; simulation; structural analysis; three-dimensional models ER - TY - JOUR T1 - Infrared speckle imaging of Io's volcanoes with 60 km/pixel resolution AN - 51806446; 2004-067593 JF - Eos, Transactions, American Geophysical Union AU - Macintosh, Bruce A AU - Gavel, Don AU - Gibbard, Seran AU - Max, Claire E AU - de Pater, Imke AU - Ghez, Andrea AU - Eckart, Megan AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 539 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - SSI KW - near-infrared spectra KW - Galileo Program KW - Jupiter KW - geophysical methods KW - Io Satellite KW - Galilean satellites KW - pixels KW - W. M. Keck Telescope KW - Kanehekili KW - observations KW - giant planets KW - Loki KW - planets KW - infrared methods KW - volcanism KW - Hubble Space Telescope KW - spectra KW - outer planets KW - satellites KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51806446?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Infrared+speckle+imaging+of+Io%27s+volcanoes+with+60+km%2Fpixel+resolution&rft.au=Macintosh%2C+Bruce+A%3BGavel%2C+Don%3BGibbard%2C+Seran%3BMax%2C+Claire+E%3Bde+Pater%2C+Imke%3BGhez%2C+Andrea%3BEckart%2C+Megan%3BAnonymous&rft.aulast=Macintosh&rft.aufirst=Bruce&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=539&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 - Galilean satellites; Galileo Program; geophysical methods; giant planets; Hubble Space Telescope; image analysis; infrared methods; Io Satellite; Jupiter; Kanehekili; Loki; near-infrared spectra; observations; outer planets; pixels; planets; satellites; spectra; SSI; volcanism; W. M. Keck Telescope ER - TY - JOUR T1 - Demonstrating improvement in seismic source location using Bayesian kriging; a case study of the 1991 Racha aftershock sequence AN - 51784259; 2004-082295 JF - Eos, Transactions, American Geophysical Union AU - Myers, Stephen C AU - Schultz, Craig A AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 558 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - monitoring KW - Bayesian analysis KW - statistical analysis KW - kriging KW - Europe KW - elastic waves KW - Racha earthquake 1991 KW - aftershocks KW - Commonwealth of Independent States KW - seismicity KW - Racha KW - Greater Caucasus KW - Caucasus KW - arrival time KW - earthquakes KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51784259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Demonstrating+improvement+in+seismic+source+location+using+Bayesian+kriging%3B+a+case+study+of+the+1991+Racha+aftershock+sequence&rft.au=Myers%2C+Stephen+C%3BSchultz%2C+Craig+A%3BAnonymous&rft.aulast=Myers&rft.aufirst=Stephen&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=558&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 - aftershocks; arrival time; Bayesian analysis; Caucasus; Commonwealth of Independent States; Comprehensive Test Ban Treaty; earthquakes; elastic waves; Europe; Greater Caucasus; kriging; monitoring; Racha; Racha earthquake 1991; seismicity; statistical analysis ER - TY - JOUR T1 - Nonstationary Bayesian kriging; applying spatial corrections to improve seismic detection, location, and discrimination AN - 51784230; 2004-082279 JF - Eos, Transactions, American Geophysical Union AU - Schultz, Craig A AU - Myers, Stephen C AU - Ruppert, Stanley D AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 556 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - discriminant analysis KW - spatial data KW - North Africa KW - Bayesian analysis KW - statistical analysis KW - kriging KW - observations KW - detection KW - seismicity KW - Africa KW - algorithms KW - Asia KW - Middle East KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51784230?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Nonstationary+Bayesian+kriging%3B+applying+spatial+corrections+to+improve+seismic+detection%2C+location%2C+and+discrimination&rft.au=Schultz%2C+Craig+A%3BMyers%2C+Stephen+C%3BRuppert%2C+Stanley+D%3BAnonymous&rft.aulast=Schultz&rft.aufirst=Craig&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=556&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 - Africa; algorithms; Asia; Bayesian analysis; detection; discriminant analysis; kriging; Middle East; North Africa; observations; seismicity; spatial data; statistical analysis ER - TY - JOUR T1 - Seismic discrimination of recent Indian and Pakistani nuclear tests AN - 51783490; 2004-082285 JF - Eos, Transactions, American Geophysical Union AU - Rodgers, A AU - Walter, W AU - Mayeda, K AU - Myers, Stephen C AU - Pasyanos, M AU - Denny, M 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 - P-waves KW - body waves KW - Pakistan KW - monitoring KW - discriminant analysis KW - guided waves KW - explosions KW - statistical analysis KW - coda waves KW - elastic waves KW - India KW - surface waves KW - seismicity KW - Indian Peninsula KW - seismic waves KW - nuclear explosions KW - Asia KW - earthquakes KW - Comprehensive Test Ban Treaty KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51783490?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+discrimination+of+recent+Indian+and+Pakistani+nuclear+tests&rft.au=Rodgers%2C+A%3BWalter%2C+W%3BMayeda%2C+K%3BMyers%2C+Stephen+C%3BPasyanos%2C+M%3BDenny%2C+M%3BAnonymous&rft.aulast=Rodgers&rft.aufirst=A&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 - Asia; body waves; coda waves; Comprehensive Test Ban Treaty; discriminant analysis; earthquakes; elastic waves; explosions; guided waves; India; Indian Peninsula; monitoring; nuclear explosions; P-waves; Pakistan; seismic waves; seismicity; statistical analysis; surface waves 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 - Leaching of trace elements from estuary sediments, Alameda Naval Air Station, California AN - 51740098; 2005-024095 JF - Eos, Transactions, American Geophysical Union AU - Carroll, Susan A AU - O'Day, Peggy A AU - Esser, Brad 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 - pollution KW - Alameda County California KW - California KW - Alameda Naval Air Station KW - metals KW - sediments KW - cadmium KW - trace elements KW - military facilities KW - leaching KW - estuarine environment KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51740098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Leaching+of+trace+elements+from+estuary+sediments%2C+Alameda+Naval+Air+Station%2C+California&rft.au=Carroll%2C+Susan+A%3BO%27Day%2C+Peggy+A%3BEsser%2C+Brad%3BAnonymous&rft.aulast=Carroll&rft.aufirst=Susan&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 - Alameda County California; Alameda Naval Air Station; cadmium; California; estuarine environment; heavy metals; leaching; metals; military facilities; pollution; sediments; trace elements; United States ER - TY - JOUR T1 - Geostatistical characterization and numerical modeling of the vadose zone transport of tritium released from an underground storage tank AN - 51739718; 2005-024187 JF - Eos, Transactions, American Geophysical Union AU - Lee, Kenrick H AU - Nitao, John J AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 361 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - solute transport KW - soils KW - numerical models KW - isotopes KW - pollutants KW - underground storage tanks KW - statistical analysis KW - unsaturated zone KW - pollution KW - geostatistics KW - tritium KW - Alameda County California KW - preferential flow KW - California KW - radioactive isotopes KW - Lawrence Livermore National Laboratory KW - hydrogen KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51739718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Geostatistical+characterization+and+numerical+modeling+of+the+vadose+zone+transport+of+tritium+released+from+an+underground+storage+tank&rft.au=Lee%2C+Kenrick+H%3BNitao%2C+John+J%3BAnonymous&rft.aulast=Lee&rft.aufirst=Kenrick&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=361&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 - Alameda County California; California; geostatistics; hydrogen; isotopes; Lawrence Livermore National Laboratory; numerical models; pollutants; pollution; preferential flow; radioactive isotopes; soils; solute transport; statistical analysis; tritium; underground storage tanks; United States; unsaturated zone ER - TY - JOUR T1 - Radionuclide transport through fractured, hydrothermally altered concrete AN - 51739195; 2005-024158 JF - Eos, Transactions, American Geophysical Union AU - Matzen, Sara L AU - Torretto, Philip C AU - Zhao, Pihong AU - Viani, Brian E AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 355 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - fractured materials KW - isotopes KW - pollutants KW - waste disposal sites KW - pollution KW - Nye County Nevada KW - metasomatism KW - concrete KW - radioactive waste KW - radioactive isotopes KW - transport KW - infiltration KW - tracers KW - hydrothermal alteration KW - waste disposal KW - Yucca Mountain KW - Nevada KW - construction materials KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51739195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Radionuclide+transport+through+fractured%2C+hydrothermally+altered+concrete&rft.au=Matzen%2C+Sara+L%3BTorretto%2C+Philip+C%3BZhao%2C+Pihong%3BViani%2C+Brian+E%3BAnonymous&rft.aulast=Matzen&rft.aufirst=Sara&rft.date=1998-11-01&rft.volume=19&rft.issue=1&rft.spage=180&rft.isbn=&rft.btitle=&rft.title=Maternal+and+Child+Health+Journal&rft.issn=10927875&rft_id=info:doi/10.1007%2Fs10995-014-1508-x 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 - concrete; construction materials; fractured materials; hydrothermal alteration; infiltration; isotopes; metasomatism; Nevada; Nye County Nevada; pollutants; pollution; radioactive isotopes; radioactive waste; tracers; transport; United States; waste disposal; waste disposal sites; Yucca Mountain ER - TY - JOUR T1 - Advances in reactive transport modeling of field-scale environmental systems AN - 51739055; 2005-024091 JF - Eos, Transactions, American Geophysical Union AU - van Cappellen, Philippe AU - Steefel, Carl I 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 - soils KW - pollutants KW - landfills KW - sediments KW - pollution KW - leachate KW - waste disposal KW - radioactive waste KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51739055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Advances+in+reactive+transport+modeling+of+field-scale+environmental+systems&rft.au=van+Cappellen%2C+Philippe%3BSteefel%2C+Carl+I%3BAnonymous&rft.aulast=van+Cappellen&rft.aufirst=Philippe&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 - landfills; leachate; pollutants; pollution; radioactive waste; sediments; soils; solute transport; waste disposal ER - TY - JOUR T1 - Speciation and bioavailability of trace metals in contaminated estuary sediments, Alameda Naval Air Station, CA AN - 51738938; 2005-024157 JF - Eos, Transactions, American Geophysical Union AU - O'Day, Peggy A AU - Carroll, Susan A AU - Martinelli, Roger AU - Randall, Simon AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 355 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - toxic materials KW - pollutants KW - pollution KW - bioavailability KW - authigenic minerals KW - Alameda County California KW - X-ray spectra KW - XANES spectra KW - California KW - Alameda Naval Air Station KW - transport KW - sediments KW - EXAFS data KW - trace metals KW - spectra KW - military facilities KW - estuarine environment KW - sulfides KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51738938?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Speciation+and+bioavailability+of+trace+metals+in+contaminated+estuary+sediments%2C+Alameda+Naval+Air+Station%2C+CA&rft.au=O%27Day%2C+Peggy+A%3BCarroll%2C+Susan+A%3BMartinelli%2C+Roger%3BRandall%2C+Simon%3BAnonymous&rft.aulast=O%27Day&rft.aufirst=Peggy&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=355&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 - Alameda County California; Alameda Naval Air Station; authigenic minerals; bioavailability; California; estuarine environment; EXAFS data; heavy metals; military facilities; pollutants; pollution; sediments; spectra; sulfides; toxic materials; trace metals; transport; United States; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Compressibility of natural (Mg,Fe) (sub 2) SiO (sub 4) gamma -spinel at transition zone pressures AN - 51730750; 2005-025468 JF - Eos, Transactions, American Geophysical Union AU - Caldwell, Wendel Alexander AU - Simogeikin, Stas V AU - Bass, Jay D AU - Kavner, Abby AU - Nguyen, Jeffrey H AU - Kruger, Michael AU - Jeanloz, Raymond AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 866 EP - 867 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - nesosilicates KW - ringwoodite KW - pressure KW - orthosilicates KW - spinel KW - oxides KW - phase transitions KW - olivine group KW - anvil cells KW - compression KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730750?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Compressibility+of+natural+%28Mg%2CFe%29+%28sub+2%29+SiO+%28sub+4%29+gamma+-spinel+at+transition+zone+pressures&rft.au=Caldwell%2C+Wendel+Alexander%3BSimogeikin%2C+Stas+V%3BBass%2C+Jay+D%3BKavner%2C+Abby%3BNguyen%2C+Jeffrey+H%3BKruger%2C+Michael%3BJeanloz%2C+Raymond%3BAnonymous&rft.aulast=Caldwell&rft.aufirst=Wendel&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 - anvil cells; compression; nesosilicates; olivine group; orthosilicates; oxides; phase transitions; pressure; ringwoodite; silicates; spinel 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 - Calibration of a large-volume multianvil apparatus for a 5000-tonne press AN - 51730335; 2005-025572 JF - Eos, Transactions, American Geophysical Union AU - Poe, Brent AU - Frost, Daniel J AU - Duba, Al AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 882 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - technology KW - perovskite KW - phase transitions KW - olivine group KW - calibration KW - nesosilicates KW - ringwoodite KW - sampling KW - metals KW - orthosilicates KW - oxides KW - anvil cells KW - instruments KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Calibration+of+a+large-volume+multianvil+apparatus+for+a+5000-tonne+press&rft.au=Poe%2C+Brent%3BFrost%2C+Daniel+J%3BDuba%2C+Al%3BAnonymous&rft.aulast=Poe&rft.aufirst=Brent&rft.date=1998-11-01&rft.volume=23&rft.issue=4&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Journal+of+Psychosomatic+Obstetrics+%26+Gynecology&rft.issn=0167482X&rft_id=info:doi/10.3109%2F01674820209074677 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 - anvil cells; calibration; instruments; metals; nesosilicates; olivine group; orthosilicates; oxides; perovskite; phase transitions; ringwoodite; sampling; silicates; technology ER - TY - JOUR T1 - Subduction zone processes, atmospheric carbon dioxide, and the mantle carbon budget AN - 51705223; 2005-045169 JF - Eos, Transactions, American Geophysical Union AU - Bebout, Gray E AU - Caldeira, Ken AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 397 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - subduction zones KW - Alps KW - mantle KW - atmosphere KW - Europe KW - subduction KW - Mesozoic KW - geochemical cycle KW - carbon dioxide KW - plate tectonics KW - carbon KW - carbon cycle KW - organic carbon KW - Franciscan Complex KW - 18:Solid-earth geophysics KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51705223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Subduction+zone+processes%2C+atmospheric+carbon+dioxide%2C+and+the+mantle+carbon+budget&rft.au=Bebout%2C+Gray+E%3BCaldeira%2C+Ken%3BAnonymous&rft.aulast=Bebout&rft.aufirst=Gray&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=397&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 - Alps; atmosphere; carbon; carbon cycle; carbon dioxide; Europe; Franciscan Complex; geochemical cycle; mantle; Mesozoic; organic carbon; plate tectonics; subduction; subduction zones ER - TY - JOUR T1 - The Vadose Zone Observatory; dynamical characterization of liquid- and gas-phase contaminant transport in a heterogeneous soil regime AN - 51704164; 2005-045104 JF - Eos, Transactions, American Geophysical Union AU - Carrigan, C R AU - Hudson, G B AU - Ramirez, A L AU - Daily, W D AU - Buettner, H M AU - Martins, S AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 384 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - hydrology KW - U. S. Department of Energy KW - pollutants KW - government agencies KW - unsaturated zone KW - prediction KW - pollution KW - mathematical models KW - preferential flow KW - gases KW - transport KW - stochastic processes KW - noble gases KW - tracers KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51704164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+Vadose+Zone+Observatory%3B+dynamical+characterization+of+liquid-+and+gas-phase+contaminant+transport+in+a+heterogeneous+soil+regime&rft.au=Carrigan%2C+C+R%3BHudson%2C+G+B%3BRamirez%2C+A+L%3BDaily%2C+W+D%3BBuettner%2C+H+M%3BMartins%2C+S%3BAnonymous&rft.aulast=Carrigan&rft.aufirst=C&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=384&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 - gases; government agencies; hydrology; mathematical models; noble gases; pollutants; pollution; pore water; prediction; preferential flow; soils; stochastic processes; tracers; transport; U. S. Department of Energy; unsaturated zone ER - TY - JOUR T1 - Fracture-matrix interaction under boiling conditions; behavior of water and solutes in a hot fracture AN - 51702777; 2005-045096 JF - Eos, Transactions, American Geophysical Union AU - Kneafsey, Timothy J AU - Roberts, Jeffery J AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 383 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - hydrology KW - unsaturated zone KW - solutes KW - Alameda County California KW - preferential flow KW - thermal regime KW - Nye County Nevada KW - California KW - fractures KW - evaporation KW - Lawrence Livermore National Laboratory KW - water regimes KW - Yucca Mountain KW - Nevada KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51702777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Fracture-matrix+interaction+under+boiling+conditions%3B+behavior+of+water+and+solutes+in+a+hot+fracture&rft.au=Kneafsey%2C+Timothy+J%3BRoberts%2C+Jeffery+J%3BAnonymous&rft.aulast=Kneafsey&rft.aufirst=Timothy&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=383&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 - Alameda County California; California; evaporation; fractures; hydrology; Lawrence Livermore National Laboratory; Nevada; Nye County Nevada; preferential flow; solutes; thermal regime; United States; unsaturated zone; water regimes; Yucca Mountain ER - TY - JOUR T1 - Shear velocity structure of the African continent AN - 51650042; 2006-005395 JF - Eos, Transactions, American Geophysical Union AU - Hazler, S E AU - Sheehan, A F AU - Walter, W R AU - Pasyanos, M E AU - McNamara, D E AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 574 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - body waves KW - North Africa KW - lithosphere KW - mantle KW - elastic waves KW - continental crust KW - teleseismic signals KW - continental lithosphere KW - plate tectonics KW - velocity structure KW - Africa KW - seismic waves KW - S-waves KW - mantle plumes KW - crust KW - Comprehensive Test Ban Treaty KW - African Plate KW - 19:Seismology KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51650042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Shear+velocity+structure+of+the+African+continent&rft.au=Hazler%2C+S+E%3BSheehan%2C+A+F%3BWalter%2C+W+R%3BPasyanos%2C+M+E%3BMcNamara%2C+D+E%3BAnonymous&rft.aulast=Hazler&rft.aufirst=S&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=574&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 - Africa; African Plate; body waves; Comprehensive Test Ban Treaty; continental crust; continental lithosphere; crust; elastic waves; lithosphere; mantle; mantle plumes; North Africa; plate tectonics; S-waves; seismic waves; teleseismic signals; velocity structure ER - TY - JOUR T1 - Shock-recovery experiments on Berea Sandstone under dry and water-pressurized conditions AN - 51647227; 2006-004819 JF - Eos, Transactions, American Geophysical Union AU - Hiltl, Michael AU - Nellis, William J AU - Fiske, Peter S AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 824 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - petroleum engineering KW - X-ray diffraction data KW - sandstone KW - petroleum KW - rock mechanics KW - electron probe data KW - oil wells KW - sedimentary rocks KW - explosives KW - Ohio KW - experimental studies KW - shock waves KW - pressure KW - Paleozoic KW - structural analysis KW - stress KW - Berea Sandstone KW - optical mineralogy KW - enhanced recovery KW - recovery KW - Devonian KW - clastic rocks KW - hydrostatic pressure 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/51647227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Shock-recovery+experiments+on+Berea+Sandstone+under+dry+and+water-pressurized+conditions&rft.au=Hiltl%2C+Michael%3BNellis%2C+William+J%3BFiske%2C+Peter+S%3BAnonymous&rft.aulast=Hiltl&rft.aufirst=Michael&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=824&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; clastic rocks; Devonian; electron probe data; enhanced recovery; experimental studies; explosives; hydrostatic pressure; Ohio; oil wells; optical mineralogy; Paleozoic; petroleum; petroleum engineering; pressure; recovery; rock mechanics; sandstone; sedimentary rocks; shock waves; stress; structural analysis; United States; X-ray diffraction data ER - TY - JOUR T1 - Surface wave measurements in North Africa and the Middle East AN - 51647056; 2006-005440 JF - Eos, Transactions, American Geophysical Union AU - Pasyanos, M E AU - Walter, W R AU - Hazler, S E AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 581 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - Saudi Arabia KW - PASSCAL KW - North Africa KW - guided waves KW - data processing KW - elastic waves KW - GEOSCOPE KW - measurement KW - IRIS network KW - Arabian Peninsula KW - surface waves KW - Love waves KW - data bases KW - velocity KW - Africa KW - seismic waves KW - seismic networks KW - MEDNET KW - Asia KW - Middle East KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51647056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Surface+wave+measurements+in+North+Africa+and+the+Middle+East&rft.au=Pasyanos%2C+M+E%3BWalter%2C+W+R%3BHazler%2C+S+E%3BAnonymous&rft.aulast=Pasyanos&rft.aufirst=M&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=581&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 - Africa; Arabian Peninsula; Asia; data bases; data processing; elastic waves; GEOSCOPE; guided waves; IRIS network; Love waves; measurement; MEDNET; Middle East; North Africa; PASSCAL; Saudi Arabia; seismic networks; seismic waves; surface waves; velocity ER - TY - JOUR T1 - Direct observation of morphology of sand-clay mixtures with implications for mechanical properties in sediments AN - 51646426; 2006-004796 JF - Eos, Transactions, American Geophysical Union AU - Aracne-Ruddle, Chantel AU - Wildenschild, Dorthe AU - Bonner, Brian AU - Berge, Patricia AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 820 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - clay KW - electrical conductivity KW - silica minerals KW - elastic properties KW - suspended materials KW - fluid phase KW - elastic waves KW - salinity KW - mixing KW - sediments KW - velocity KW - propagation KW - framework silicates KW - compression KW - chemical composition KW - soil mechanics KW - sand KW - body waves KW - clastic sediments KW - grain size KW - geophysical methods KW - mechanical properties KW - properties KW - ultrasonic methods KW - seismic methods KW - measurement KW - shear KW - quartz KW - seismic waves KW - S-waves KW - pore water KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Direct+observation+of+morphology+of+sand-clay+mixtures+with+implications+for+mechanical+properties+in+sediments&rft.au=Aracne-Ruddle%2C+Chantel%3BWildenschild%2C+Dorthe%3BBonner%2C+Brian%3BBerge%2C+Patricia%3BAnonymous&rft.aulast=Aracne-Ruddle&rft.aufirst=Chantel&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=820&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 - body waves; chemical composition; clastic sediments; clay; compression; elastic properties; elastic waves; electrical conductivity; fluid phase; framework silicates; geophysical methods; grain size; measurement; mechanical properties; mixing; pore water; propagation; properties; quartz; S-waves; salinity; sand; sediments; seismic methods; seismic waves; shear; silica minerals; silicates; soil mechanics; suspended materials; ultrasonic methods; velocity ER - TY - JOUR T1 - Transport and microstructural properties of sand-clay mixtures AN - 51646221; 2006-004797 JF - Eos, Transactions, American Geophysical Union AU - Wildenschild, Dorthe AU - Roberts, Jeffrey J AU - Carlberg, Eric D AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 820 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - clay KW - electrical conductivity KW - silica minerals KW - characterization KW - Wyoming Bentonite KW - Ottawa Sand KW - laboratory studies KW - sedimentary rocks KW - mixing KW - sediments KW - framework silicates KW - soils KW - sand KW - experimental studies KW - electrical properties KW - bentonite KW - acoustical properties KW - sediment transport KW - clastic sediments KW - sedimentation KW - geophysical methods KW - properties KW - porosity KW - quartz KW - computed tomography data KW - clastic rocks KW - permeability KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Transport+and+microstructural+properties+of+sand-clay+mixtures&rft.au=Wildenschild%2C+Dorthe%3BRoberts%2C+Jeffrey+J%3BCarlberg%2C+Eric+D%3BAnonymous&rft.aulast=Wildenschild&rft.aufirst=Dorthe&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=820&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 - acoustical properties; bentonite; characterization; clastic rocks; clastic sediments; clay; computed tomography data; electrical conductivity; electrical properties; experimental studies; framework silicates; geophysical methods; laboratory studies; mixing; Ottawa Sand; permeability; porosity; properties; quartz; sand; sediment transport; sedimentary rocks; sedimentation; sediments; silica minerals; silicates; soils; Wyoming Bentonite ER - TY - JOUR T1 - Integration of geologic interpretation, geostatistics, parallel computing, and electrical resistance tomography for characterization of 3-D aquifer system heterogeneity AN - 51645857; 2006-006633 JF - Eos, Transactions, American Geophysical Union AU - Carle, Steven F AU - Ramirez, Abelardo L AU - Daily, William D AU - Newmark, Robin L AU - Tompson, Andrew F B 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 - tomography KW - geophysical surveys KW - three-dimensional models KW - statistical analysis KW - geophysical methods KW - data processing KW - characterization KW - properties KW - resistivity KW - ground water KW - aquifers KW - models KW - movement KW - surveys KW - heterogeneity KW - permeability KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51645857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Integration+of+geologic+interpretation%2C+geostatistics%2C+parallel+computing%2C+and+electrical+resistance+tomography+for+characterization+of+3-D+aquifer+system+heterogeneity&rft.au=Carle%2C+Steven+F%3BRamirez%2C+Abelardo+L%3BDaily%2C+William+D%3BNewmark%2C+Robin+L%3BTompson%2C+Andrew+F+B%3BAnonymous&rft.aulast=Carle&rft.aufirst=Steven&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 - aquifers; characterization; data processing; geophysical methods; geophysical surveys; ground water; heterogeneity; models; movement; permeability; properties; resistivity; statistical analysis; surveys; three-dimensional models; tomography ER - TY - JOUR T1 - Episodic erosion of the Idaho Batholith inferred from measurements over 10-year and 10,000-year timescales AN - 51632243; 2006-013477 JF - Eos, Transactions, American Geophysical Union AU - Kirchner, James W AU - Finkel, Robert C AU - Riebe, Clifford S AU - Granger, Darryl E AU - Clayton, James L AU - Megahan, Walter F AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 338 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - geologic hazards KW - isotopes KW - erosion KW - watersheds KW - ecosystems KW - erosion rates KW - Al-26 KW - radioactive isotopes KW - denudation KW - aluminum KW - sediment yield KW - sediments KW - drainage basins KW - batholiths KW - hydrology KW - Idaho KW - alkaline earth metals KW - Be-10 KW - landform evolution KW - sedimentation KW - measurement KW - Idaho Batholith KW - intrusions KW - metals KW - risk assessment KW - geomorphology KW - beryllium KW - 23:Geomorphology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51632243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Episodic+erosion+of+the+Idaho+Batholith+inferred+from+measurements+over+10-year+and+10%2C000-year+timescales&rft.au=Kirchner%2C+James+W%3BFinkel%2C+Robert+C%3BRiebe%2C+Clifford+S%3BGranger%2C+Darryl+E%3BClayton%2C+James+L%3BMegahan%2C+Walter+F%3BAnonymous&rft.aulast=Kirchner&rft.aufirst=James&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=338&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 - Al-26; alkaline earth metals; aluminum; batholiths; Be-10; beryllium; denudation; drainage basins; ecosystems; erosion; erosion rates; geologic hazards; geomorphology; hydrology; Idaho; Idaho Batholith; intrusions; isotopes; landform evolution; measurement; metals; radioactive isotopes; risk assessment; sediment yield; sedimentation; sediments; United States; watersheds ER - TY - JOUR T1 - Dynamic underground stripping removal and in situ hydrous pyrolysis/oxidation destruction of hydrocarbons and chlorinated hydrocarbons AN - 51631961; 2006-013448 JF - Eos, Transactions, American Geophysical Union AU - Aines, Roger D AU - Newmark, Robin L AU - Knauss, Kevin G AU - Hudson, G Bryant AU - Leif, Roald AU - Chiarappa, Marina AU - Eaker, Craig AU - Weidner, Randall AU - Sciarotta, Terry AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 333 EP - 334 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Tulare County California KW - chlorinated hydrocarbons KW - dynamic underground stripping KW - government agencies KW - remediation KW - ground water KW - environmental management KW - California KW - pyrolysis KW - halogenated hydrocarbons KW - water pollution KW - monitoring KW - in situ KW - pollutants KW - oxidation KW - U. S. Environmental Protection Agency KW - pollution KW - hydration KW - organic compounds KW - hydrocarbons KW - Visalia California KW - polycyclic aromatic hydrocarbons KW - heating KW - electrical currents KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51631961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Dynamic+underground+stripping+removal+and+in+situ+hydrous+pyrolysis%2Foxidation+destruction+of+hydrocarbons+and+chlorinated+hydrocarbons&rft.au=Aines%2C+Roger+D%3BNewmark%2C+Robin+L%3BKnauss%2C+Kevin+G%3BHudson%2C+G+Bryant%3BLeif%2C+Roald%3BChiarappa%2C+Marina%3BEaker%2C+Craig%3BWeidner%2C+Randall%3BSciarotta%2C+Terry%3BAnonymous&rft.aulast=Aines&rft.aufirst=Roger&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=333&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/10.1111%2Fj.1440-1800.2011.00533.x 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 - aromatic hydrocarbons; California; chlorinated hydrocarbons; dynamic underground stripping; electrical currents; environmental management; government agencies; ground water; halogenated hydrocarbons; heating; hydration; hydrocarbons; in situ; monitoring; organic compounds; oxidation; pollutants; pollution; polycyclic aromatic hydrocarbons; pyrolysis; remediation; Tulare County California; U. S. Environmental Protection Agency; United States; Visalia California; water pollution ER - TY - JOUR T1 - Characterization of a hydrothermal system geologically and geobotanically using hyperspectral imagery; Long Valley Caldera, California, USA AN - 50490582; 2009-024867 JF - Eos, Transactions, American Geophysical Union AU - Martini, Brigette A AU - Cochran, Susan A AU - Silver, Eli A AU - Pickles, William L AU - Potts, Donald C AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 964 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - imagery KW - Mono County California KW - fumaroles KW - geophysical methods KW - vegetation KW - metasomatism KW - Long Valley Caldera KW - geothermal energy KW - California KW - geothermal fields KW - fractures KW - mineral composition KW - infrared methods KW - geothermal systems KW - AVIRIS KW - springs KW - hydrothermal alteration KW - mineral assemblages KW - hot springs KW - spectroscopy KW - remote sensing KW - airborne methods 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/50490582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Characterization+of+a+hydrothermal+system+geologically+and+geobotanically+using+hyperspectral+imagery%3B+Long+Valley+Caldera%2C+California%2C+USA&rft.au=Martini%2C+Brigette+A%3BCochran%2C+Susan+A%3BSilver%2C+Eli+A%3BPickles%2C+William+L%3BPotts%2C+Donald+C%3BAnonymous&rft.aulast=Martini&rft.aufirst=Brigette&rft.date=1998-11-01&rft.volume=79&rft.issue=45%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 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 - airborne methods; AVIRIS; California; fractures; fumaroles; geophysical methods; geothermal energy; geothermal fields; geothermal systems; hot springs; hydrothermal alteration; imagery; infrared methods; Long Valley Caldera; metasomatism; mineral assemblages; mineral composition; Mono County California; remote sensing; spectroscopy; springs; United States; vegetation ER - TY - JOUR T1 - The temperature of formation of carbonate minerals in Martian meteorite ALH84001; constraints from cation diffusion AN - 50489389; 2009-024931 JF - Eos, Transactions, American Geophysical Union AU - Hutcheon, Ian D AU - Kent, Adam J R AU - Ryerson, Frederick J AU - Phinney, Douglas L AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 967 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - methods KW - stony meteorites KW - Martian meteorites KW - achondrites KW - temperature KW - meteorites KW - Allan Hills Meteorites KW - Antarctica KW - major elements KW - cations KW - ALH 84001 KW - chemical composition KW - carbonates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50489389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+temperature+of+formation+of+carbonate+minerals+in+Martian+meteorite+ALH84001%3B+constraints+from+cation+diffusion&rft.au=Hutcheon%2C+Ian+D%3BKent%2C+Adam+J+R%3BRyerson%2C+Frederick+J%3BPhinney%2C+Douglas+L%3BAnonymous&rft.aulast=Hutcheon&rft.aufirst=Ian&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=967&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 - achondrites; ALH 84001; Allan Hills Meteorites; Antarctica; carbonates; cations; chemical composition; major elements; Martian meteorites; meteorites; methods; stony meteorites; temperature ER - TY - JOUR T1 - Thermal decomposition of methane hydrate at 0.1 MPa; short-term preservation by rapid depressurization AN - 50095387; 2010-016142 JF - Eos, Transactions, American Geophysical Union AU - Stern, L A AU - Circone, S AU - Kirby, S H AU - Pinkston, J C AU - Durham, W B AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 462 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - experimental studies KW - methane KW - gas hydrates KW - aliphatic hydrocarbons KW - stability KW - alkanes KW - organic compounds KW - marine sediments KW - P-T-t paths KW - ice KW - sediments KW - hydrocarbons KW - polycrystalline materials KW - kinetics KW - synthetic materials KW - preservation KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50095387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Thermal+decomposition+of+methane+hydrate+at+0.1+MPa%3B+short-term+preservation+by+rapid+depressurization&rft.au=Stern%2C+L+A%3BCircone%2C+S%3BKirby%2C+S+H%3BPinkston%2C+J+C%3BDurham%2C+W+B%3BAnonymous&rft.aulast=Stern&rft.aufirst=L&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=462&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 - aliphatic hydrocarbons; alkanes; experimental studies; gas hydrates; hydrocarbons; ice; kinetics; marine sediments; methane; organic compounds; P-T-t paths; polycrystalline materials; preservation; sediments; stability; synthetic materials ER - TY - JOUR T1 - First measurements of P- and S-wave speed on pure methane gas hydrate AN - 50093012; 2010-016144 JF - Eos, Transactions, American Geophysical Union AU - Waite, W F AU - Helgerud, M B AU - Nur, A AU - Pinkston, J C AU - Stern, L A AU - Kirby, S H AU - Durham, W B AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 463 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - P-waves KW - body waves KW - methane KW - pressure KW - gas hydrates KW - natural gas KW - aliphatic hydrocarbons KW - petroleum KW - elastic waves KW - alkanes KW - porosity KW - measurement KW - organic compounds KW - marine sediments KW - sediments KW - hydrocarbons KW - velocity KW - seismic waves KW - S-waves KW - pore water KW - P-T conditions KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50093012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=First+measurements+of+P-+and+S-wave+speed+on+pure+methane+gas+hydrate&rft.au=Waite%2C+W+F%3BHelgerud%2C+M+B%3BNur%2C+A%3BPinkston%2C+J+C%3BStern%2C+L+A%3BKirby%2C+S+H%3BDurham%2C+W+B%3BAnonymous&rft.aulast=Waite&rft.aufirst=W&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=463&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 - aliphatic hydrocarbons; alkanes; body waves; elastic waves; gas hydrates; hydrocarbons; marine sediments; measurement; methane; natural gas; organic compounds; P-T conditions; P-waves; petroleum; pore water; porosity; pressure; S-waves; sediments; seismic waves; velocity ER - TY - JOUR T1 - Limitations to laser-heated diamond-anvil cell studies of deep mantle phases AN - 50071912; 2010-023384 JF - Eos, Transactions, American Geophysical Union AU - Duba, Al AU - Mackwell, Steve AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 845 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - laser methods KW - oxidation KW - perovskite KW - mantle KW - phase transitions KW - San Carlos Olivine KW - temperature KW - lower mantle KW - oxides KW - heating KW - anvil cells KW - P-T conditions KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50071912?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Limitations+to+laser-heated+diamond-anvil+cell+studies+of+deep+mantle+phases&rft.au=Duba%2C+Al%3BMackwell%2C+Steve%3BAnonymous&rft.aulast=Duba&rft.aufirst=Al&rft.date=1998-11-01&rft.volume=79&rft.issue=45%2C+Suppl.&rft.spage=845&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 - anvil cells; heating; laser methods; lower mantle; mantle; oxidation; oxides; P-T conditions; perovskite; phase transitions; San Carlos Olivine; temperature ER - TY - JOUR T1 - Iron sound velocities in shock wave experiments up to 400 GPa AN - 50070952; 2010-023389 JF - Eos, Transactions, American Geophysical Union AU - Nguyen, Jeffrey H AU - Holmes, Neil C AU - Anonymous Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 846 PB - American Geophysical Union, Washington, DC VL - 79 IS - 45, Suppl. SN - 0096-3941, 0096-3941 KW - outer core KW - experimental studies KW - shock waves KW - pressure KW - metals KW - phase transitions KW - core KW - high pressure KW - iron KW - P-T conditions KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50070952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Iron+sound+velocities+in+shock+wave+experiments+up+to+400+GPa&rft.au=Nguyen%2C+Jeffrey+H%3BHolmes%2C+Neil+C%3BAnonymous&rft.aulast=Nguyen&rft.aufirst=Jeffrey&rft.date=1998-11-01&rft.volume=9&rft.issue=4&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=Archives+of+Women%27s+Mental+Health&rft.issn=14341816&rft_id=info:doi/10.1007%2Fs00737-006-0131-2 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 - core; experimental studies; high pressure; iron; metals; outer core; P-T conditions; phase transitions; pressure; shock waves ER - TY - JOUR T1 - Smoking cigarettes is associated with increased sperm disomy in teenage men. AN - 70006457; 9797104 AB - OBJECTIVETo determine whether moderate cigarette smoking and alcohol consumption in teenage men is associated with increases in disomic sperm and detectable changes in semen quality.DESIGNCohort study.SETTINGMilitary recruiting station, Teplice, Czech Republic.PATIENT(S)Ten current smokers (20 cigarettes per day for at least 2 years, exposure confirmed by urine cotinine) who also consumed alcohol and 15 nonsmokers. All patients were exactly 18 years old, healthy, and of unproven fertility.MAIN OUTCOME MEASURE(S)Sperm aneuploidy by multicolor fluorescence in situ hybridization for chromosomes 8, X, and Y; conventional semen analyses; computer-aided sperm analysis for motility; and sperm chromatin structure analysis.RESULTSSmokers showed elevated frequencies of sperm aneuploidy (Y disomy, P <0.001; aggregate of X, Y, and 8 disomies, P <0.01); reduced linearity of sperm motion (P <0.05); and more "round-headed" sperm (P <0.01). Smokers' semen contained fewer sperm (P <0.001) and fewer motile sperm (P <0.02), which was attributable, in part, to shorter abstinence intervals among smokers (P <0.02).CONCLUSION(S)Cigarette smoking among teenagers was associated with increases in disomic sperm and a diminution in specific aspects of semen quality. Such defects may affect male fertility and may increase future chances of fathering offspring with aneuploidy syndromes. JF - Fertility and sterility AU - Rubes, J AU - Lowe, X AU - Moore, D AU - Perreault, S AU - Slott, V AU - Evenson, D AU - Selevan, S G AU - Wyrobek, A J AD - Lawrence Livermore National Laboratory, Livermore, California 94550, USA. Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 715 EP - 723 VL - 70 IS - 4 SN - 0015-0282, 0015-0282 KW - Chromatin KW - 0 KW - Caffeine KW - 3G6A5W338E KW - Index Medicus KW - Videotape Recording KW - Reference Values KW - Aneuploidy KW - Humans KW - Alcohol Drinking -- adverse effects KW - In Situ Hybridization, Fluorescence KW - Sperm Motility KW - Chromatin -- ultrastructure KW - Sperm Count KW - Caffeine -- adverse effects KW - Adolescent KW - Male KW - Statistics, Nonparametric KW - Spermatozoa -- pathology KW - Smoking -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70006457?accountid=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=Fertility+and+sterility&rft.atitle=Smoking+cigarettes+is+associated+with+increased+sperm+disomy+in+teenage+men.&rft.au=Rubes%2C+J%3BLowe%2C+X%3BMoore%2C+D%3BPerreault%2C+S%3BSlott%2C+V%3BEvenson%2C+D%3BSelevan%2C+S+G%3BWyrobek%2C+A+J&rft.aulast=Rubes&rft.aufirst=J&rft.date=1998-10-01&rft.volume=70&rft.issue=4&rft.spage=715&rft.isbn=&rft.btitle=&rft.title=Fertility+and+sterility&rft.issn=00150282&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-11-12 N1 - Date created - 1998-11-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Attomole detection of 3H in biological samples using accelerator mass spectrometry: application in low-dose, dual-isotope tracer studies in conjunction with 14C accelerator mass spectrometry. AN - 69970443; 9778319 AB - This is the first demonstration of the use of accelerator mass spectrometry (AMS) as a tool for the measurement of 3H with attomole (10(-18) mol) sensitivity in a biological study. AMS is an analytical technique for quantifying rare isotopes with high sensitivity and precision and has been most commonly used to measure 14C in both the geosciences and more recently in biomedical research. AMS measurement of serially diluted samples containing a 3H-labeled tracer showed a strong correlation with liquid scintillation counting. The mean coefficient of variation of 3H AMS based upon the analysis of separately prepared aliquots of these samples was 12%. The sensitivity for 3H detection in tissue, protein, and DNA was approximately 2-4 amol/mg of sample. This high sensitivity is comparable to detection limits for 14C-labeled carcinogens using 14C AMS and demonstrates the feasibility of 3H AMS for biomedical studies. One application of this technique is in low-dose, dual-isotope studies in conjunction with 14C AMS. We measured the levels of 3H-labeled 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) and 14C-labeled 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx) in rat liver tissue and bound to liver DNA and protein 4.5 h following acute administration of individual or coadministered doses in the range of 4-5100 pmol/kg of body weight. Levels of PhIP and MeIQx in whole tissue and bound to liver protein were dose-dependent. MeIQx-protein and -DNA adduct levels were higher than PhIP adduct levels, which is consistent with their respective carcinogenicity in this organ. Coadministration of PhIP and MeIQx did not demonstrate any measurable synergistic effects compared to administration of these compounds individually. These studies demonstrate the application of AMS for the low-level detection of 3H in small biological samples and for its use in conjunction with 14C AMS for dual-labeling studies. JF - Chemical research in toxicology AU - Dingley, K H AU - Roberts, M L AU - Velsko, C A AU - Turteltaub, K W AD - Biology and Biotechnology Research Program and Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, California 94551-9900, USA. Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 1217 EP - 1222 VL - 11 IS - 10 SN - 0893-228X, 0893-228X KW - Carbon Radioisotopes KW - 0 KW - DNA Adducts KW - Imidazoles KW - Quinolines KW - Tritium KW - 10028-17-8 KW - 2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine KW - 909C6UN66T KW - 2-amino-3,4-dimethylimidazo(4,5-f)quinoline KW - G2Q7M1P33X KW - Index Medicus KW - Sensitivity and Specificity KW - Rats KW - Radiation Dosage KW - Mass Spectrometry KW - Animals KW - Rats, Inbred F344 KW - Quinolines -- metabolism KW - DNA Adducts -- analysis KW - Imidazoles -- metabolism KW - Male KW - Tritium -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69970443?accountid=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=Chemical+research+in+toxicology&rft.atitle=Attomole+detection+of+3H+in+biological+samples+using+accelerator+mass+spectrometry%3A+application+in+low-dose%2C+dual-isotope+tracer+studies+in+conjunction+with+14C+accelerator+mass+spectrometry.&rft.au=Dingley%2C+K+H%3BRoberts%2C+M+L%3BVelsko%2C+C+A%3BTurteltaub%2C+K+W&rft.aulast=Dingley&rft.aufirst=K&rft.date=1998-10-01&rft.volume=11&rft.issue=10&rft.spage=1217&rft.isbn=&rft.btitle=&rft.title=Chemical+research+in+toxicology&rft.issn=0893228X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-11-25 N1 - Date created - 1998-11-25 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Biological dosimetry of beta-ray exposure from tritium using chromosome translocations in human lymphocytes analyzed by fluorescence in situ hybridization. AN - 69954414; 9768853 AB - Radiation exposures from tritium make up a substantial fraction of the occupational and accidental radiation exposures associated with the nuclear power industry. Tritiated water, the most abundant form of tritium, is of particular interest because it is readily taken up by human cells and its irradiation of the cells is spread over a period of days. To approximate the prolonged exposure and the conditions that the cells of an individual would experience in vivo, we irradiated human lymphocytes with tritiated water for 48 h in a 1:1 blood:medium mix. For estimation of the tritium beta-ray dose, a cellular water content of 0.78, based on measurements of human lymphoblastoid cells in culture medium, was used. A modified dose calculation formula was developed for the radiation exposure conditions. A total of 48,014 metaphases (14,482 in irradiated samples and 33,532 in control, unirradiated samples) in human lymphocytes cultured for 72 h after exposure were analyzed for chromosome translocations using fluorescence in situ hybridization. The linear slope (alpha coefficient) of the dose-response curve was measured to be (3.93+/-0.42) x 10(-2) and (5.26+/-0.48) x 10(-2) translocations per cell per gray for complete translocations (tc) and complete translocations plus incomplete translocations [ti(Ab)], respectively, when the data were fitted to a linear model using a weighted least-squares method. The alpha coefficient for tc is significantly lower than that for conventionally measured dicentrics after tritium beta irradiation, but the alpha coefficient for tc + ti(Ab) does not differ significantly from that for dicentrics. This is in agreement with theoretical considerations. The importance of scoring criteria is stressed. The frequency of tc + ti(Ab) is proposed to be a reliable biodosimeter for tritium exposures, and its practical use in a dose reconstruction is presented. JF - Radiation research AU - Deng, W AU - Morrison, D P AU - Gale, K L AU - Lucas, J N AD - University of California, Lawrence Livermore National Laboratory, Livermore 94551, USA. Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 400 EP - 405 VL - 150 IS - 4 SN - 0033-7587, 0033-7587 KW - Tritium KW - 10028-17-8 KW - Index Medicus KW - Space life sciences KW - Radiation Dosage KW - Humans KW - In Vitro Techniques KW - In Situ Hybridization, Fluorescence KW - Dose-Response Relationship, Radiation KW - Beta Particles KW - Male KW - Lymphocytes -- radiation effects KW - Translocation, Genetic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69954414?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Biological+dosimetry+of+beta-ray+exposure+from+tritium+using+chromosome+translocations+in+human+lymphocytes+analyzed+by+fluorescence+in+situ+hybridization.&rft.au=Deng%2C+W%3BMorrison%2C+D+P%3BGale%2C+K+L%3BLucas%2C+J+N&rft.aulast=Deng&rft.aufirst=W&rft.date=1998-10-01&rft.volume=150&rft.issue=4&rft.spage=400&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-10-20 N1 - Date created - 1998-10-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Analysis of compressive fracture in rock using statistical techniques; Part I, A non-linear rule-based model AN - 52555692; 1998-067107 JF - International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts AU - Blair, S C AU - Cook, N G W Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 837 EP - 848 PB - Pergamon, Oxford-New York VL - 35 IS - 7 SN - 0148-9062, 0148-9062 KW - strain KW - strength KW - stress KW - statistical analysis KW - uniaxial tests KW - rock mechanics KW - measurement KW - models KW - fractures KW - cracks KW - heterogeneous materials KW - compressive strength KW - heterogeneity KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52555692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.atitle=Analysis+of+compressive+fracture+in+rock+using+statistical+techniques%3B+Part+I%2C+A+non-linear+rule-based+model&rft.au=Blair%2C+S+C%3BCook%2C+N+G+W&rft.aulast=Blair&rft.aufirst=S&rft.date=1998-10-01&rft.volume=35&rft.issue=7&rft.spage=837&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%26+Geomechanics+Abstracts&rft.issn=01489062&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - IJRMA2 N1 - SubjectsTermNotLitGenreText - compressive strength; cracks; fractures; heterogeneity; heterogeneous materials; measurement; models; rock mechanics; statistical analysis; strain; strength; stress; uniaxial tests ER - TY - JOUR T1 - Nonstationary Bayesian kriging; a predictive technique to generate spatial corrections for seismic detection, location, and identification AN - 52524202; 1999-011981 AB - Seismic characterization works to improve the detection, location, and identification of seismic events by correcting for inaccuracies in geophysical models. These inaccuracies are caused by inherent averaging in the model, and, as a result, exact data values cannot be directly recovered at a point in the model. Seismic characterization involves cataloging reference events so that inaccuracies in the model can be mapped at these points and true data values can be retained through a correction. Application of these corrections to a new event requires the accurate prediction of the correction value at a point that is near but not necessarily coincident with the reference events. Given that these reference events can be sparsely distributed geographically, both interpolation and extrapolation of corrections to the new point are required. In this study, we develop a closed-form representation of Bayesian kriging (linear prediction) that incorporates variable spatial damping. The result is a robust nonstationary algorithm for spatially interpolating geophysical corrections. This algorithm extends local trends when data coverage is good and allows for damping (blending) to an a priori background mean when data coverage is poor. Benchmark tests show that the technique gives reliable predictions of the correction value along with an appropriate uncertainty estimate. Tests with travel-time residual data demonstrate that combining variable damping with an azimuthal coverage criterion reduces the large errors that occur with more classical linear prediction techniques, especially when values are extrapolated in poor coverage regions. In the travel-time correction case, this technique generates both seismic corrections along with uncertainties and can properly incorporate model error in the final location estimate. Results favor the applicability of this nonstationary algorithm to other types of seismic corrections such as amplitude and attenuation measures. JF - Bulletin of the Seismological Society of America AU - Schultz, Craig A AU - Myers, Stephen C AU - Hipp, James AU - Young, Christopher J Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 1275 EP - 1288 PB - Seismological Society of America, Berkeley, CA VL - 88 IS - 5 SN - 0037-1106, 0037-1106 KW - methods KW - Bayesian analysis KW - statistical analysis KW - kriging KW - spatial distribution KW - attenuation KW - detection KW - seismicity KW - earthquake prediction KW - corrections KW - algorithms KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52524202?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Nonstationary+Bayesian+kriging%3B+a+predictive+technique+to+generate+spatial+corrections+for+seismic+detection%2C+location%2C+and+identification&rft.au=Schultz%2C+Craig+A%3BMyers%2C+Stephen+C%3BHipp%2C+James%3BYoung%2C+Christopher+J&rft.aulast=Schultz&rft.aufirst=Craig&rft.date=1998-10-01&rft.volume=88&rft.issue=5&rft.spage=1275&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 - 18 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - algorithms; attenuation; Bayesian analysis; corrections; detection; earthquake prediction; earthquakes; kriging; methods; seismicity; spatial distribution; statistical analysis ER - TY - JOUR T1 - Polymorphic transformations between olivine, wadsleyite and ringwoodite; mechanisms of intracrystalline nucleation and the role of elastic strain AN - 52508254; 1999-018498 AB - Kinetic models and rate equations for polymorphic reconstructive phase transformations in polycrystalline aggregates are usually based on the assumptions that (a) the product phase nucleates on grain boundaries in the reactant phase and (b) growth rates of the product phase remain constant with time at fixed P-T. Recent observations of experimentally induced transformations between (Mg,Fe) (sub 2) SiO (sub 4) olivine (alpha ) and its high pressure polymorphs, wadsleyite (beta ) and ringwoodite (gamma ), demonstrate that both these assumptions can be invalid, thus complicating the extrapolation of experimental kinetic data. Incoherent grain boundary nucleation appears to have dominated in most previous experimental studies of the alpha -beta -gamma transformations because of the use of starting materials with small (<10-20 mu m) grain sizes. In contrast, when large (0.6 mm) olivine single crystals are reacted, intracrystalline nucleation of both beta and gamma becomes the dominant mechanism, particularly when the P-T conditions significantly overstep the equilibrium boundary. At pressures of 18-20 GPa intracrystalline nucleation involves (i) the formation of stacking faults in the olivine, (ii) coherent nucleation of gamma -lamellae on these faults and (iii) nucleation of beta on gamma . In other experiments, intracrystalline nucleation is also observed during the beta -gamma transformation. In this case coherent nucleation of gamma appears to occur at the intersections of dislocations with (010) stacking faults in beta , which suggests that the nucleation rate is stress dependent. Reaction rims of beta /gamma form at the margins of the olivine single crystals by grain boundary nucleation. Measurements of growth distance as a function of time indicate that the growth rate of these rims decrease towards zero as transformation progresses. The growth rate slows because of the decrease in the magnitude of the Gibbs free energy (stored elastic strain energy) that develops as a consequence of the large volume change of transformation. On a longer time scale, growth kinetics may be controlled by viscoelastic relaxation. JF - Mineralogical Magazine AU - Kerschhofer, Ljuba AU - Dupas, Catherine AU - Liu, Ming AU - Sharp, Thomas G AU - Durham, William B AU - Rubie, David C A2 - Redfern, Simon A. T. Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 617 EP - 638 PB - Mineralogical Society, London VL - 62 IS - 5 SN - 0026-461X, 0026-461X KW - silicates KW - subduction zones KW - pressure KW - phase transitions KW - olivine group KW - high pressure KW - elastic strain KW - nesosilicates KW - ringwoodite KW - polymorphism KW - nucleation KW - phase equilibria KW - wadsleyite KW - orthosilicates KW - transformations KW - P-T conditions KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52508254?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Polymorphic+transformations+between+olivine%2C+wadsleyite+and+ringwoodite%3B+mechanisms+of+intracrystalline+nucleation+and+the+role+of+elastic+strain&rft.au=Kerschhofer%2C+Ljuba%3BDupas%2C+Catherine%3BLiu%2C+Ming%3BSharp%2C+Thomas+G%3BDurham%2C+William+B%3BRubie%2C+David+C&rft.aulast=Kerschhofer&rft.aufirst=Ljuba&rft.date=1998-10-01&rft.volume=62&rft.issue=5&rft.spage=617&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/10.1180%2F002646198548016 L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Equilibrium and kinetic properties of minerals N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 69 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - elastic strain; high pressure; nesosilicates; nucleation; olivine group; orthosilicates; P-T conditions; phase equilibria; phase transitions; polymorphism; pressure; ringwoodite; silicates; subduction zones; transformations; wadsleyite DO - http://dx.doi.org/10.1180/002646198548016 ER - TY - JOUR T1 - The role of aqueous fluids in the slab-to-mantle transfer of boron, beryllium, and lithium during subduction; experiments and models AN - 52480287; 1999-030788 AB - Clinopyroxene- and garnet-aqueous fluid partition coefficients are presented for B, Be and Li from experiments conducted at 900 degrees C and 2.0 GPa. The data are assembled for assessing quantitatively the hypothesis that dense, aqueous fluids are the medium for mass transfer of B, Be and Li during subduction, and that these elements in fluid coexist with phases that may be residual during high-P slab dehydration. A model is presented for the behaviour of these elements during progressive dehydration of the oceanic crust. Average clinopyroxene-fluid partition coefficients are approximately 0.02 (B), approximately 2 (Be) and approximately 0.2 (Li) and are 100 X (B, Li) to 1000 X (Be) larger than values for garnet. A comparison of clinopyroxene-fluid partition coefficients for B-Be, B-Nb and Li-Yb with clinopyroxene-silicate melt values shows that B/Be, B/Nb and Li/Yb ratios will be significantly fractionated in coexisting aqueous fluid with respect to the residual solid. Raised ratios of these elements in island arc lavas relative to MORB are consistent with their origin by fluid-mediated slab-to-mantle transport. When a slab reaches a depth of 200 km, B/Be and B/Nb in the dehydration residue has been reduced to approximately 5-12 % of initial values. JF - Geochimica et Cosmochimica Acta AU - Brenan, James M AU - Ryerson, Frederick J AU - Shaw, Henry F Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 3337 EP - 3347 PB - Pergamon, Oxford VL - 62 IS - 19-20 SN - 0016-7037, 0016-7037 KW - silicates KW - oceanic crust KW - volcanic rocks KW - igneous rocks KW - garnet group KW - mantle KW - fluid phase KW - aqueous solutions KW - temperature KW - laboratory studies KW - pyroxene group KW - clinopyroxene KW - major elements KW - chemical reactions KW - orthosilicates KW - trace elements KW - geochemistry KW - chemical ratios KW - P-T conditions KW - chain silicates KW - alkaline earth metals KW - experimental studies KW - pressure KW - lithium KW - alkali metals KW - mineral-water interface KW - subduction KW - migration of elements KW - high pressure KW - nesosilicates KW - models KW - partition coefficients KW - plate tectonics KW - niobium KW - lava KW - island arcs KW - metals KW - slabs KW - boron KW - dehydration KW - high temperature KW - crust KW - beryllium KW - chemical fractionation KW - 17B:Geophysics of minerals and rocks KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52480287?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+role+of+aqueous+fluids+in+the+slab-to-mantle+transfer+of+boron%2C+beryllium%2C+and+lithium+during+subduction%3B+experiments+and+models&rft.au=Brenan%2C+James+M%3BRyerson%2C+Frederick+J%3BShaw%2C+Henry+F&rft.aulast=Brenan&rft.aufirst=James&rft.date=1998-10-01&rft.volume=62&rft.issue=19-20&rft.spage=3337&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900224-5 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 - 64 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; aqueous solutions; beryllium; boron; chain silicates; chemical fractionation; chemical ratios; chemical reactions; clinopyroxene; crust; dehydration; experimental studies; fluid phase; garnet group; geochemistry; high pressure; high temperature; igneous rocks; island arcs; laboratory studies; lava; lithium; major elements; mantle; metals; migration of elements; mineral-water interface; models; nesosilicates; niobium; oceanic crust; orthosilicates; P-T conditions; partition coefficients; plate tectonics; pressure; pyroxene group; silicates; slabs; subduction; temperature; trace elements; volcanic rocks DO - http://dx.doi.org/10.1016/S0016-7037(98)00224-5 ER - TY - JOUR T1 - Thermodynamics of calcite growth; baseline for understanding biomineral formation AN - 52359023; 2000-038587 JF - Science AU - Teng, H Henry AU - Dove, Patricia M AU - Orme, Christine A AU - De Yoreo, James J Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 724 EP - 727 PB - American Association for the Advancement of Science, Washington, DC VL - 282 IS - 5389 SN - 0036-8075, 0036-8075 KW - biomineralization KW - solutions KW - atomic force microscopy KW - crystal growth KW - calcite KW - organic compounds KW - organic acids KW - nucleation KW - amino acids KW - thermodynamic properties KW - carbonates KW - aspartic acid KW - baseline studies KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52359023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Thermodynamics+of+calcite+growth%3B+baseline+for+understanding+biomineral+formation&rft.au=Teng%2C+H+Henry%3BDove%2C+Patricia+M%3BOrme%2C+Christine+A%3BDe+Yoreo%2C+James+J&rft.aulast=Teng&rft.aufirst=H&rft.date=1998-10-01&rft.volume=282&rft.issue=5389&rft.spage=724&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 - 2000-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - amino acids; aspartic acid; atomic force microscopy; baseline studies; biomineralization; calcite; carbonates; crystal growth; nucleation; organic acids; organic compounds; solutions; thermodynamic properties ER - TY - JOUR T1 - Structural organization of virulence-associated plasmids of Yersinia pestis AN - 17133798; 4436513 AB - The complete nucleotide sequence and gene organization of the three virulence plasmids from Yersinia pestis KIM5 were determined. Plasmid pPCP1 (9.610 bp) has a GC content of 45.3% and encodes two previously known virulence factors, an associated protein, and a single copy of IS100. Plasmid pCD1 (70,504 bp) has a GC content of 44.8%. It is known to encode a number of essential virulence determinants, regulatory functions, and a multiprotein secretory system comprising the low-calcium response stimulation that is shared with the other two Yersinia species pathogenic for humans (Y. pseudotuberculosis and Y. enterocolitica). A new pseudogene, which occurs as an intact gene in the Y. enterocolitica and Y. pseudotuberculosis-derived analogues, was found in pCD1. It corresponds to that encoding the lipoprotein YlpA. Several intact and partial insertion sequences and/or transposons were also found in pCD1, as well as six putative structural genes with high homology to proteins of unknown function in other yersiniae. The sequences of the genes involved in the replication of pCD1 are highly homologous to those of the cognate plasmids in Y. pseudotuberculosis and Y. enterocolitica, but their localization within the plasmid differs markedly from those of the latter. Plasmid pMT1 (100,984 bp) has a GC content of 50.2%. It possesses two copies of IS100, which are located 25 kb apart and in opposite orientations. Adjacent to one of these IS100 inserts is a partial copy of IS285. A single copy of an IS200-like element (recently named IS1541) was also located in pMT1. In addition to 5 previously described genes, such as murine toxin, capsule antigen, capsule anchoring protein, etc., 30 homologues to genes of several bacterial species were found in this plasmid, and another 44 open reading frames without homology to any known or hypothetical protein in the databases were predicted. JF - Journal of Bacteriology AU - Hu, P AU - Elliott, J AU - McCready, P AU - Skowronski, E AU - Garnes, J AU - Kobayashi, A AU - Brubaker, R R AU - Garcia, E AD - Human Genome Center, Biology and Biotechnology Research Program, L-452, Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, CA 94550, USA, garcial2@llnl.gov Y1 - 1998/10// PY - 1998 DA - Oct 1998 SP - 5192 EP - 5202 VL - 180 IS - 19 SN - 0021-9193, 0021-9193 KW - Insertion sequence IS100 KW - Insertion sequence IS200 KW - Insertion sequence IS285 KW - Plasmid pCD1 KW - Plasmid pMT1 KW - Plasmid pPCP1 KW - YlpA protein KW - insertion sequence IS100 KW - man KW - mice KW - nucleotide sequence KW - plasmid pCD1 KW - plasmid pMT1 KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - Yersinia pseudotuberculosis KW - Yersinia pestis KW - Insertion sequences KW - Virulence KW - Fingerprinting KW - Genes KW - Copy number control KW - Homology KW - Yersinia enterocolitica KW - J 02725:DNA KW - G 07203:Plasmids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17133798?accountid=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=Structural+organization+of+virulence-associated+plasmids+of+Yersinia+pestis&rft.au=Hu%2C+P%3BElliott%2C+J%3BMcCready%2C+P%3BSkowronski%2C+E%3BGarnes%2C+J%3BKobayashi%2C+A%3BBrubaker%2C+R+R%3BGarcia%2C+E&rft.aulast=Hu&rft.aufirst=P&rft.date=1998-10-01&rft.volume=180&rft.issue=19&rft.spage=5192&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 - Yersinia enterocolitica; Yersinia pestis; Yersinia pseudotuberculosis; Virulence; Homology; Insertion sequences; Fingerprinting; Genes; Copy number control ER - TY - JOUR T1 - Role of plate kinematics and plate-slip-vector partitioning in continental magmatic arcs; evidence from the Cordillera Blanca, Peru AN - 52563267; 1998-058253 AB - New structural and geochronological data from the Cordillera Blanca batholith in the Peruvian Andes, coupled with Nazca-South American plate-slip-vector data, indicate that oblique convergence and associated strike-slip partitioning strongly influenced continental magmatic arc evolution. Both the strain field and mode of magmatism (plutonism vs. volcanism) in the late Miocene Peruvian Andes were controlled by the degree to which the arc-parallel component of the plate slip vector was partitioned into the arc. Strong strike-slip partitioning at ca. 8 Ma produced arc-parallel sinistral shear, strike-slip intercordilleran basins and east-west-oriented tension fractures that facilitated emplacement of the Cordillera Blanca batholith (ca. 8.2+ or -0.2 Ma). Periods during which the strike-slip component was not partitioned into the arc (ca. 10 and ca. 7 Ma) were associated with roughly arc-normal contraction and ignimbrite volcanism. The data thus support the contention that contraction within continental magmatic arcs favors volcanism, whereas transcurrent shear favors plutonism. The tie between oblique convergence and batholith emplacement in late Miocene Peruvian Andes provides a modern analogue for batholiths emplaced as the result of transcurrent shear in ancient arcs. JF - Geology (Boulder) AU - McNulty, Brendan A AU - Farber, Daniel L AU - Wallace, Glen S AU - Lopez, Robert AU - Palacios, Oscar Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 827 EP - 830 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 9 SN - 0091-7613, 0091-7613 KW - silicates KW - U/Pb KW - strain KW - igneous rocks KW - South American Plate KW - granites KW - strike-slip faults KW - Cenozoic KW - plutonic rocks KW - dates KW - volcanism KW - granodiorites KW - orthosilicates KW - absolute age KW - Peru KW - batholiths KW - faults KW - zircon group KW - Andes KW - magmatism KW - zircon KW - paleomagnetism KW - plate convergence KW - Miocene KW - emplacement KW - nesosilicates KW - kinematics KW - Tertiary KW - South America KW - intrusions KW - Cordillera Blanca Batholith KW - plate tectonics KW - Neogene KW - magnetic susceptibility KW - shear KW - upper Miocene KW - Nazca Plate KW - 18:Solid-earth geophysics KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52563267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Role+of+plate+kinematics+and+plate-slip-vector+partitioning+in+continental+magmatic+arcs%3B+evidence+from+the+Cordillera+Blanca%2C+Peru&rft.au=McNulty%2C+Brendan+A%3BFarber%2C+Daniel+L%3BWallace%2C+Glen+S%3BLopez%2C+Robert%3BPalacios%2C+Oscar&rft.aulast=McNulty&rft.aufirst=Brendan&rft.date=1998-09-01&rft.volume=26&rft.issue=9&rft.spage=827&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281998%290262.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - Number of references - 39 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - SuppNotes - With GSA Data Repository Item 9878 N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - absolute age; Andes; batholiths; Cenozoic; Cordillera Blanca Batholith; dates; emplacement; faults; granites; granodiorites; igneous rocks; intrusions; kinematics; magmatism; magnetic susceptibility; Miocene; Nazca Plate; Neogene; nesosilicates; orthosilicates; paleomagnetism; Peru; plate convergence; plate tectonics; plutonic rocks; shear; silicates; South America; South American Plate; strain; strike-slip faults; Tertiary; U/Pb; upper Miocene; volcanism; zircon; zircon group DO - http://dx.doi.org/10.1130/0091-7613(1998)026<0827:ROPKAP>2.3.CO;2 ER - TY - JOUR T1 - A recent drilling program to investigate radionuclide migration at the Nevada Test Site AN - 52482033; 1999-036523 AB - Recent drilling affords new opportunities to investigate the occurrence, distribution, and transport of radionuclides above and below the water table at the Nevada Test Site (NTS), Nye County, Nevada. This program is unique because of elevated levels of radioactivity encountered during drilling (>3.7E+6 Bq/I (super 3) H), extreme completion depths (>950 m), and the expense of constructing new wells (>$1E+6/borehole). Sites of five nuclear tests have been drilled. Three of the events were fired in Yucca Flat which is a hydrologically closed basin and two were fired in fractured volcanics of Pahute Mesa. Results from Yucca Flat indicate that volatile and refractory radionuclides, fractionated at zero time, are not highly mobile under saturated conditions. In contrast, boreholes completed on Pahute Mesa intercept high concentrations of tritium (>3.7E+6 Bq/I (super 3) H) and other radionuclides transported more than 300 m from event cavities as dissolved species or as colloids. JF - Journal of Radioanalytical and Nuclear Chemistry AU - Smith, D K AU - Anonymous Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 159 EP - 166 PB - Elsevier, Lausanne-Budapest VL - 235 IS - 1-2 SN - 1417-2097, 1417-2097 KW - United States KW - Sr-90 KW - Eu-155 KW - Eu-154 KW - Basin and Range Province KW - isotopes KW - Eu-152 KW - halogens KW - tritium KW - Clark County Nevada KW - environmental analysis KW - stable isotopes KW - ground water KW - Nevada Test Site KW - Kr-85 KW - geochemical surveys KW - radioactive isotopes KW - cesium KW - Rainier Mesa KW - Pahute Mesa KW - noble gases KW - carbon KW - movement KW - tracers KW - rare earths KW - europium KW - Lincoln County Nevada KW - Xe-137 KW - Nevada KW - chlorine KW - North America KW - alkaline earth metals KW - pollutants KW - Cl-36 KW - alkali metals KW - pollution KW - xenon KW - Nye County Nevada KW - krypton KW - water table KW - Cs-137 KW - metals KW - hydrogen KW - surveys KW - C-14 KW - water wells KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52482033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Radioanalytical+and+Nuclear+Chemistry&rft.atitle=A+recent+drilling+program+to+investigate+radionuclide+migration+at+the+Nevada+Test+Site&rft.au=Smith%2C+D+K%3BAnonymous&rft.aulast=Smith&rft.aufirst=D&rft.date=1998-09-01&rft.volume=235&rft.issue=1-2&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.issn=14172097&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fourth international conference on Methods and applications of radioanalytical chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JRNCDM N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; Basin and Range Province; C-14; carbon; cesium; chlorine; Cl-36; Clark County Nevada; Cs-137; environmental analysis; Eu-152; Eu-154; Eu-155; europium; geochemical surveys; ground water; halogens; hydrogen; isotopes; Kr-85; krypton; Lincoln County Nevada; metals; movement; Nevada; Nevada Test Site; noble gases; North America; Nye County Nevada; Pahute Mesa; pollutants; pollution; radioactive isotopes; Rainier Mesa; rare earths; Sr-90; stable isotopes; strontium; surveys; tracers; tritium; United States; water table; water wells; Xe-137; xenon ER - TY - JOUR T1 - A coupled molecular isotopic approach to trace sources of organic carbon preserved in the sedimentary record AN - 52156548; 2002-008908 JF - Mineralogical Magazine AU - Eglinton, T I AU - Benitez-Nelson, B C AU - Pearson, A AU - McNichol, A P AU - Goni, M A AU - Ertel, J R AU - Anonymous Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 413 EP - 414 PB - Mineralogical Society, London VL - 62A, Part 1 SN - 0026-461X, 0026-461X KW - United States KW - Northeast Pacific KW - lignin KW - isotopes KW - coupling KW - Lake Washington KW - stable isotopes KW - Gulf of Mexico KW - phenols KW - marine sediments KW - radioactive isotopes KW - Indian Ocean KW - carbon KW - sediments KW - organic carbon KW - East Pacific KW - Washington KW - isotope ratios KW - C-13/C-12 KW - Black Sea KW - Arabian Sea KW - East Mediterranean KW - organic compounds KW - Santa Monica Basin KW - North Pacific KW - Pacific Ocean KW - Mediterranean Sea KW - C-14 KW - North Atlantic KW - Atlantic Ocean KW - 06A:Sedimentary petrology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52156548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=A+coupled+molecular+isotopic+approach+to+trace+sources+of+organic+carbon+preserved+in+the+sedimentary+record&rft.au=Eglinton%2C+T+I%3BBenitez-Nelson%2C+B+C%3BPearson%2C+A%3BMcNichol%2C+A+P%3BGoni%2C+M+A%3BErtel%2C+J+R%3BAnonymous&rft.aulast=Eglinton&rft.aufirst=T&rft.date=1998-09-01&rft.volume=62A%2C+Part+1&rft.issue=&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 5 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Arabian Sea; Atlantic Ocean; Black Sea; C-13/C-12; C-14; carbon; coupling; East Mediterranean; East Pacific; Gulf of Mexico; Indian Ocean; isotope ratios; isotopes; Lake Washington; lignin; marine sediments; Mediterranean Sea; North Atlantic; North Pacific; Northeast Pacific; organic carbon; organic compounds; Pacific Ocean; phenols; radioactive isotopes; Santa Monica Basin; sediments; stable isotopes; United States; Washington ER - TY - JOUR T1 - In-situ observation of oxide and silicate mineral dissolution by hydrothermal scanning force microscopy; initial results for hematite and albite AN - 52152187; 2002-009016 JF - Mineralogical Magazine AU - Higgins, Steven R AU - Eggleston, Carrick M AU - Jordan, G AU - Knauss, Kevin G AU - Boro, C O AU - Anonymous Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 618 EP - 619 PB - Mineralogical Society, London VL - 62A, Part 1 SN - 0026-461X, 0026-461X KW - silicates KW - surface properties KW - plagioclase KW - in situ KW - crystal growth KW - albite KW - solution KW - hematite KW - scanning force microscopy data KW - oxides KW - framework silicates KW - feldspar group KW - 01A:General mineralogy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52152187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=In-situ+observation+of+oxide+and+silicate+mineral+dissolution+by+hydrothermal+scanning+force+microscopy%3B+initial+results+for+hematite+and+albite&rft.au=Higgins%2C+Steven+R%3BEggleston%2C+Carrick+M%3BJordan%2C+G%3BKnauss%2C+Kevin+G%3BBoro%2C+C+O%3BAnonymous&rft.aulast=Higgins&rft.aufirst=Steven&rft.date=1998-09-01&rft.volume=62A%2C+Part+1&rft.issue=&rft.spage=618&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 3 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - albite; crystal growth; feldspar group; framework silicates; hematite; in situ; oxides; plagioclase; scanning force microscopy data; silicates; solution; surface properties ER - TY - JOUR T1 - Using glass inclusions to investigate a heterogeneous mantle; an example from N- and EMORB-like lavas from Baffin Island AN - 51577403; 2006-052188 JF - Mineralogical Magazine AU - Kent, A J R AU - Stolper, E M AU - Woodhead, J AU - Hutcheon, I D AU - Francis, D A2 - Schott, Jacques Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 765 EP - 766 PB - Mineralogical Society, London VL - 62A, Part 2 SN - 0026-461X, 0026-461X KW - silicates KW - volcanic rocks KW - glasses KW - isotopes KW - igneous rocks KW - mantle KW - olivine group KW - stable isotopes KW - melts KW - Cenozoic KW - major elements KW - Paleocene KW - olivine KW - Nunavut KW - inclusions KW - basalts KW - orthosilicates KW - Baffin Island KW - rare earths KW - heterogeneity KW - chemical composition KW - geochemistry KW - picrite KW - alkaline earth metals KW - isotope ratios KW - Paleogene KW - Northwest Territories KW - nesosilicates KW - Nd-144/Nd-143 KW - Sr-87/Sr-86 KW - Tertiary KW - Canada KW - lava KW - metals KW - magmas KW - mid-ocean ridge basalts KW - Western Canada KW - neodymium KW - Eastern Canada KW - strontium KW - phenocrysts KW - magma chambers KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51577403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Using+glass+inclusions+to+investigate+a+heterogeneous+mantle%3B+an+example+from+N-+and+EMORB-like+lavas+from+Baffin+Island&rft.au=Kent%2C+A+J+R%3BStolper%2C+E+M%3BWoodhead%2C+J%3BHutcheon%2C+I+D%3BFrancis%2C+D&rft.aulast=Kent&rft.aufirst=A+J&rft.date=1998-09-01&rft.volume=62A%2C+Part+2&rft.issue=&rft.spage=765&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 4 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Baffin Island; basalts; Canada; Cenozoic; chemical composition; Eastern Canada; geochemistry; glasses; heterogeneity; igneous rocks; inclusions; isotope ratios; isotopes; lava; magma chambers; magmas; major elements; mantle; melts; metals; mid-ocean ridge basalts; Nd-144/Nd-143; neodymium; nesosilicates; Northwest Territories; Nunavut; olivine; olivine group; orthosilicates; Paleocene; Paleogene; phenocrysts; picrite; rare earths; silicates; Sr-87/Sr-86; stable isotopes; strontium; Tertiary; volcanic rocks; Western Canada ER - TY - JOUR T1 - Dissolution of baryte (001) observed by hydrothermal scanning force microscopy AN - 51577326; 2006-052166 JF - Mineralogical Magazine AU - Jordan, G AU - Higgins, S R AU - Eggleston, C M AU - Knauss, K G AU - Boro, C O A2 - Schott, Jacques Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 725 EP - 726 PB - Mineralogical Society, London VL - 62A, Part 2 SN - 0026-461X, 0026-461X KW - experimental studies KW - in situ KW - sulfates KW - crystal structure KW - crystal growth KW - temperature KW - activation energy KW - mineral composition KW - scanning force microscopy data KW - barite KW - kinetics KW - high temperature KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51577326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Dissolution+of+baryte+%28001%29+observed+by+hydrothermal+scanning+force+microscopy&rft.au=Jordan%2C+G%3BHiggins%2C+S+R%3BEggleston%2C+C+M%3BKnauss%2C+K+G%3BBoro%2C+C+O&rft.aulast=Jordan&rft.aufirst=G&rft.date=1998-09-01&rft.volume=62A%2C+Part+2&rft.issue=&rft.spage=725&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 4 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - activation energy; barite; crystal growth; crystal structure; experimental studies; high temperature; in situ; kinetics; mineral composition; scanning force microscopy data; sulfates; temperature ER - TY - JOUR T1 - Effects of cation substitutions in garnet and pyroxene on equilibrium oxygen isotope fractionations AN - 51037290; 1998-049130 AB - High-grade metamorphic rocks were used to explore oxygen isotope fractionations between pyroxene and garnet, and to investigate the effects on fractionation factors of the cation substitutions Fe (super 3+) Al (sub -1) and Ca(Fe,Mg) (sub -1) . Recrystallized, granulite-facies (725 degrees C) wollastonite ores from the N Adirondack highlands essentially contain clinopyroxene (a Di-Hd solid solution) + garnet (a Grs-Adr solid solution) + or - wollastonite, and exhibit a systematic dependence of measured fractionations on the Fe (super 3+) content of calcic garnet: Delta (Cpx-CaGrt) = (0.14 + or - 0.12) + (0.78 + or - 0.20)X (sub Adr) and Delta (Wo-CaGrt) = (0.15 + or - 0.22) + (0.57 + or - 0.33)X (sub Adr) . In eclogites formed at T < or = 650 degrees C: measured compositions of Ca-poor garnet and omphacite combined with experimental data indicate that Ca-poor, Fe-rich garnet is enriched in (super 18) O compared to both diopside and grossular. Extrapolating to 1000 K, Delta (Alm-Di) approximately 0.2% and Delta (Alm-Grs) approximately 0.5%. Orthopyroxene and clinopyroxene from Gore Mountain, New York, show a constant fractionation, independent of rock type, as expected if they have the same closure T. These data imply Delta (Opx-Cpx)Delta approximately 0.7% at 1000 K. Measured fractionations among Ca-poor garnet, orthopyroxene, clinopyroxene and hornblende in the Gore Mountain rocks further indicate an (super 18) O enrichment in Ca-poor garnet over Grs ( approximately 0.5% at 1000 K). The new measurements consistently indicate a significant isotope effect for the simple octahedral cation substitutions Fe (super 3+) Al (sub -1) (Grs vs Adr) and Ca(Fe,Mg) (sub -1) (Ca-poor garnet vs Grs; Opx vs Cpx). JF - Journal of Metamorphic Geology AU - Kohn, M J AU - Valley, J W Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 625 EP - 639 PB - Blackwell, Oxford VL - 16 IS - 5 SN - 0263-4929, 0263-4929 KW - United States KW - silicates KW - retrograde metamorphism KW - isotope fractionation KW - oxygen KW - isotopes KW - isotope ratios KW - garnet group KW - O-18/O-16 KW - metamorphism KW - stable isotopes KW - high-grade metamorphism KW - Gore Mountain KW - nesosilicates KW - New York KW - pyroxene group KW - mineral composition KW - metamorphic rocks KW - orthosilicates KW - chemical composition KW - geochemistry KW - Adirondack Mountains KW - chain silicates KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51037290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3A&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Trauma+%26+Dissociation&rft.atitle=Exploring+dissociation+and+oxytocin+as+pathways+between+trauma+exposure+and+trauma-related+hyperemesis+gravidarum%3A+A+test-of-concept+pilot&rft.au=Seng%2C+Julia%3BMiller%2C+Janis%3BSperlich%2C+Mickey%3Bvan+de+Ven%2C+Cosmas+J.+M.%3BBrown%2C+Stephanie%3BCarter%2C+C.+Sue%3BLiberzon%2C+Israel&rft.aulast=Seng&rft.aufirst=Julia&rft.date=2013-01-01&rft.volume=14&rft.issue=1&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Journal+of+Trauma+%26+Dissociation&rft.issn=15299732&rft_id=info:doi/10.1080%2F15299732.2012.694594 L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1525-1314 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 59 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2016-09-16 N1 - SubjectsTermNotLitGenreText - Adirondack Mountains; chain silicates; chemical composition; garnet group; geochemistry; Gore Mountain; high-grade metamorphism; isotope fractionation; isotope ratios; isotopes; metamorphic rocks; metamorphism; mineral composition; nesosilicates; New York; O-18/O-16; orthosilicates; oxygen; pyroxene group; retrograde metamorphism; silicates; stable isotopes; United States ER - TY - JOUR T1 - Continuous lake-sediment records of glaciation in the Sierra Nevada between 52,600 and 12,500 (super 14) C yr B.P. AN - 50919305; 1999-022178 JF - Quaternary Research AU - Benson, Larry V AU - May, Howard M AU - Antweiler, Ronald C AU - Brinton, Terry I AU - Kashgarian, Michaele AU - Smoot, Joseph P AU - Lund, Steve P Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 113 EP - 127 PB - Academic Press, New York, NY VL - 50 IS - 2 SN - 0033-5894, 0033-5894 KW - United States KW - Sierra Nevada KW - glaciation KW - isotopes KW - glaciolacustrine environment KW - upper Pleistocene KW - Cenozoic KW - California KW - Inyo County California KW - radioactive isotopes KW - dates KW - carbon KW - glacial environment KW - sediments KW - absolute age KW - Pyramid Lake KW - Nevada KW - Tioga Glaciation KW - Quaternary KW - Owens Lake KW - lacustrine environment KW - Pleistocene KW - C-14 KW - Washoe County Nevada KW - lake sediments KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50919305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Research&rft.atitle=Continuous+lake-sediment+records+of+glaciation+in+the+Sierra+Nevada+between+52%2C600+and+12%2C500+%28super+14%29+C+yr+B.P.&rft.au=Benson%2C+Larry+V%3BMay%2C+Howard+M%3BAntweiler%2C+Ronald+C%3BBrinton%2C+Terry+I%3BKashgarian%2C+Michaele%3BSmoot%2C+Joseph+P%3BLund%2C+Steve+P&rft.aulast=Benson&rft.aufirst=Larry&rft.date=1998-09-01&rft.volume=50&rft.issue=2&rft.spage=113&rft.isbn=&rft.btitle=&rft.title=Quaternary+Research&rft.issn=00335894&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00335894 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 48 N1 - PubXState - NY N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - QRESAV N1 - SubjectsTermNotLitGenreText - absolute age; C-14; California; carbon; Cenozoic; dates; glacial environment; glaciation; glaciolacustrine environment; Inyo County California; isotopes; lacustrine environment; lake sediments; Nevada; Owens Lake; Pleistocene; Pyramid Lake; Quaternary; radioactive isotopes; sediments; Sierra Nevada; Tioga Glaciation; United States; upper Pleistocene; Washoe County Nevada ER - TY - JOUR T1 - The 0.78 Ae Structure of a Serine Protease: Bacillus lentus Subtilisin AN - 17180960; 4471560 AB - Ultrahigh-resolution X-ray diffraction data from cryo-cooled, B. lentus subtilisin crystals has been collected to a resolution of 0.78 Ae. The refined model coordinates have a rms deviation of 0.22 Ae relative to the same structure determined at room temperature and 2.0 Ae resolution. Several regions of main-chain and side-chain disorder have been identified for 21 out of 269 residues in one polypeptide chain. Hydrogen atoms appear as significant peaks in the F sub(o) - F sub(c) difference electron density map, and carbon, nitrogen, and oxygen atoms can be differentiated. The estimated standard deviation (ESD) for all main-chain non-hydrogen bond lengths is 0.009 Ae and 0.5 degree for bond angles based on an unrestrained full-matrix least-squares refinement. Hydrogen bonds are resolved in the serine protease catalytic triad (Ser-His-Asp). Electron density is observed for an unusual, short hydrogen bond between aspartic acid and histidine in the catalytic triad. The hydrogen atom, identified by NMR in numerous serine proteases, appears to be shared by the heteroatoms in the bond. This represents the first reported correlation between detailed chemical features identified by NMR and those in a cryo-cooled crystallographic structure determination at ultrahigh resolution. The short hydrogen bond, designated "catalytic hydrogen bond", occurs as part of an elaborate hydrogen bond network, involving Asp of the catalytic triad. While unusual, these features appear to have conserved analogues in other serine protease families although specific details differ from family to family. JF - Biochemistry (Washington) AU - Kuhn, P AU - Knapp, M AU - Soltis, S M AU - Ganshaw, G AU - Thoene, M AU - Bott, R AD - Lawrence Livermore National Laboratory, Livermore, California, and Genencor International, Palo Alto, CA 94304, USA Y1 - 1998/09// PY - 1998 DA - Sep 1998 SP - 13446 EP - 13452 VL - 37 IS - 39 SN - 0006-2960, 0006-2960 KW - Microbiology Abstracts B: Bacteriology KW - Protein structure KW - Bacillus lentus KW - Subtilisin KW - X-ray diffraction KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17180960?accountid=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=The+0.78+Ae+Structure+of+a+Serine+Protease%3A+Bacillus+lentus+Subtilisin&rft.au=Kuhn%2C+P%3BKnapp%2C+M%3BSoltis%2C+S+M%3BGanshaw%2C+G%3BThoene%2C+M%3BBott%2C+R&rft.aulast=Kuhn&rft.aufirst=P&rft.date=1998-09-01&rft.volume=37&rft.issue=39&rft.spage=13446&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bacillus lentus; Subtilisin; X-ray diffraction; Protein structure ER - TY - JOUR T1 - Covalent binding of 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline to albumin and hemoglobin at environmentally relevant doses. Comparison of human subjects and F344 rats. AN - 80056133; 9698300 AB - Covalent binding of the food-borne heterocyclic amine 2-amino-3, 8-dimethylimidazo[4,5-f]quinoxaline (MeIQx) to albumin and hemoglobin (Hb), 3.5-6.0 hr after oral administration of a single dose of either 21.3 or 228.0 microg of [14C]MeIQx (304 and 3257 ng/kg of body weight, respectively, based on a 70-kg subject weight), was studied in human volunteers using accelerator mass spectrometry. Human protein adduct levels were compared with data obtained for male F344 rats 4.5 hr after oral administration of 0.94-11,420 ng/kg of body weight [14C]MeIQx. Dose-dependent levels of MeIQx-albumin and MeIQx-Hb adducts were detected in both humans and rats. In each case, the regression coefficient (slope) of the dose-response curve was approximately 1. The highest levels of adduct formation per unit dose of MeIQx occurred with human albumin, followed by rat albumin, human Hb, and rat Hb (in that order). Although the human subjects were elderly and underwent colon resection surgery during the study period, the results indicate that formation of albumin and Hb adducts is dose dependent and that a trend exists for higher adduct levels per unit dose in humans, compared with F344 rats. Furthermore, MeIQx-albumin adducts are likely to provide a more sensitive marker of exposure to MeIQx than are MeIQx-Hb adducts. JF - Drug metabolism and disposition: the biological fate of chemicals AU - Dingley, K H AU - Freeman, S P AU - Nelson, D O AU - Garner, R C AU - Turteltaub, K W AD - Biology and Biotechnology Research Program and Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94551-9900, USA. Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 825 EP - 828 VL - 26 IS - 8 SN - 0090-9556, 0090-9556 KW - Carbon Radioisotopes KW - 0 KW - Carcinogens KW - Hemoglobins KW - Quinoxalines KW - Serum Albumin KW - 2-amino-3,8-dimethylimidazo(4,5-f)quinoxaline KW - 77500-04-0 KW - Index Medicus KW - Sensitivity and Specificity KW - Rats KW - Mass Spectrometry KW - Animals KW - Rats, Inbred F344 KW - Dose-Response Relationship, Drug KW - Humans KW - Adult KW - Aged KW - Protein Binding KW - Male KW - Serum Albumin -- metabolism KW - Quinoxalines -- blood KW - Carcinogens -- metabolism KW - Hemoglobins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80056133?accountid=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=Drug+metabolism+and+disposition%3A+the+biological+fate+of+chemicals&rft.atitle=Covalent+binding+of+2-amino-3%2C8-dimethylimidazo%5B4%2C5-f%5Dquinoxaline+to+albumin+and+hemoglobin+at+environmentally+relevant+doses.+Comparison+of+human+subjects+and+F344+rats.&rft.au=Dingley%2C+K+H%3BFreeman%2C+S+P%3BNelson%2C+D+O%3BGarner%2C+R+C%3BTurteltaub%2C+K+W&rft.aulast=Dingley&rft.aufirst=K&rft.date=1998-08-01&rft.volume=26&rft.issue=8&rft.spage=825&rft.isbn=&rft.btitle=&rft.title=Drug+metabolism+and+disposition%3A+the+biological+fate+of+chemicals&rft.issn=00909556&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-08-31 N1 - Date created - 1998-08-31 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Quantitative imaging microscopy for the sensitive detection of administered metal containing drugs in single cells and tissue slices--a demonstration using platinum based chemotherapeutic agent. AN - 80033142; 9682148 AB - We described the use of Nuclear microscopy (microbeam PIXE) for the quantitative micron scale analysis of platinum based chemotherapeutic agents in individual cell and tissue slices. We demonstrate that microbeam PIXE has the sensitivity and accuracy to quantitatively measure the uptake of the chemotherapeutic agent cis-diamminedichloroplatinum (II) (cisplatin) and monitor other endogenous metal contents in single cells in a time- and dose-dependent fashion. Additionally, the technique can quantitatively image therapeutic levels of cisplatin and cisplatin analogs including cis-diammine[1,1-cyclobutanedicarboxylato] platinum (II) (carboplatin) in tissues from an animal model. This quantitative imaging microscopy has general application for the sensitive measurement of metal containing drugs/compounds at the cellular level and allows the study of cellular distribution and mechanism of action related to toxic response and cell function. JF - Journal of pharmaceutical and biomedical analysis AU - Mauthe, R J AU - Sideras-Haddad, E AU - Turteltaub, K W AU - Bench, G AD - Biological and Biotechnology Research Program, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA. Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 651 EP - 663 VL - 17 IS - 4-5 SN - 0731-7085, 0731-7085 KW - Antineoplastic Agents KW - 0 KW - transplatin KW - 14913-33-8 KW - Platinum KW - 49DFR088MY KW - Carboplatin KW - BG3F62OND5 KW - Cisplatin KW - Q20Q21Q62J KW - Index Medicus KW - Sensitivity and Specificity KW - Rats KW - Animals KW - Rats, Inbred F344 KW - CHO Cells KW - Kidney Tubules -- metabolism KW - Male KW - Cricetinae KW - Cisplatin -- pharmacokinetics KW - Spectrometry, X-Ray Emission -- methods KW - Cisplatin -- chemistry KW - Carboplatin -- chemistry KW - Antineoplastic Agents -- pharmacokinetics KW - Platinum -- analysis KW - Antineoplastic Agents -- chemistry KW - Carboplatin -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80033142?accountid=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+pharmaceutical+and+biomedical+analysis&rft.atitle=Quantitative+imaging+microscopy+for+the+sensitive+detection+of+administered+metal+containing+drugs+in+single+cells+and+tissue+slices--a+demonstration+using+platinum+based+chemotherapeutic+agent.&rft.au=Mauthe%2C+R+J%3BSideras-Haddad%2C+E%3BTurteltaub%2C+K+W%3BBench%2C+G&rft.aulast=Mauthe&rft.aufirst=R&rft.date=1998-08-01&rft.volume=17&rft.issue=4-5&rft.spage=651&rft.isbn=&rft.btitle=&rft.title=Journal+of+pharmaceutical+and+biomedical+analysis&rft.issn=07317085&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-10-14 N1 - Date created - 1998-10-14 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Erratum In: J Pharm Biomed Anal 1999 Jan;18(6):following 1067 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Holocene left-slip rate determined by cosmogenic surface dating on the Xidatan segment of the Kunlun Fault (Qinghai, China) AN - 52578018; 1998-049977 AB - Cosmogenic dating, using in situ (super 26) Al and (super 10) Be in quartz pebbles from alluvial terrace surfaces, constrains the late Holocene slip rate on the Xidatan segment of the Kunlun fault in northeastern Tibet. Two terrace risers offset by 24+ or -3 and 33+ or -4 m, having respective ages of 1788+ or -388 and 2914+ or -471 yr, imply a slip rate of 12.1+ or -2.6 mm/yr. The full range of ages obtained (< or =22.8 k.y., most of them between 6.7 and 1.4 k.y.) confirm that terrace deposition and incision, hence landform evolution, are modulated by post-glacial climate change. Coupled with minimum offsets of 9-12 m, this slip rate implies that great earthquakes (M approximately 8) with a recurrence time of 800-1000 yr, rupture the Kunlun fault near 94 degrees E. JF - Geology (Boulder) AU - van der Woerd, J AU - Ryerson, F J AU - Tapponnier, P AU - Gaudemer, Y AU - Finkel, R AU - Meriaux, A S AU - Caffee, M AU - Zhao, Guoguang AU - He, Qunlu Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 695 EP - 698 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 8 SN - 0091-7613, 0091-7613 KW - Far East KW - isotopes KW - postglacial environment KW - lateral faults KW - cosmogenic elements KW - slip rates KW - terraces KW - strike-slip faults KW - Holocene KW - exposure age KW - climate change KW - Cenozoic KW - Al-26 KW - radioactive isotopes KW - geochronology KW - aluminum KW - sediments KW - tectonics KW - Asia KW - active faults KW - seismotectonics KW - faults KW - China KW - alkaline earth metals KW - Quaternary KW - Be-10 KW - clastic sediments KW - landform evolution KW - Xidatan Fault KW - metals KW - Qinghai China KW - Kunlun Fault KW - alluvium KW - left-lateral faults KW - earthquakes KW - beryllium KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52578018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Holocene+left-slip+rate+determined+by+cosmogenic+surface+dating+on+the+Xidatan+segment+of+the+Kunlun+Fault+%28Qinghai%2C+China%29&rft.au=van+der+Woerd%2C+J%3BRyerson%2C+F+J%3BTapponnier%2C+P%3BGaudemer%2C+Y%3BFinkel%2C+R%3BMeriaux%2C+A+S%3BCaffee%2C+M%3BZhao%2C+Guoguang%3BHe%2C+Qunlu&rft.aulast=van+der+Woerd&rft.aufirst=J&rft.date=1998-08-01&rft.volume=26&rft.issue=8&rft.spage=695&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281998%290262.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - Number of references - 15 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - Inst. Phys. Globe de Paris, Contrib. No. 1538 N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - active faults; Al-26; alkaline earth metals; alluvium; aluminum; Asia; Be-10; beryllium; Cenozoic; China; clastic sediments; climate change; cosmogenic elements; earthquakes; exposure age; Far East; faults; geochronology; Holocene; isotopes; Kunlun Fault; landform evolution; lateral faults; left-lateral faults; metals; postglacial environment; Qinghai China; Quaternary; radioactive isotopes; sediments; seismotectonics; slip rates; strike-slip faults; tectonics; terraces; Xidatan Fault DO - http://dx.doi.org/10.1130/0091-7613(1998)026<0695:HLSRDB>2.3.CO;2 ER - TY - JOUR T1 - Measurements of the equation of state of deuterium at the fluid insulator-metal transition AN - 52571768; 1998-055204 JF - Science AU - Collins, G W AU - da Silva, L B AU - Celliers, P AU - Gold, D M AU - Foord, M E AU - Wallace, R J AU - Ng, A AU - Weber, S V AU - Budil, K S AU - Cauble, R Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 1178 EP - 1181 PB - American Association for the Advancement of Science, Washington, DC VL - 281 IS - 5380 SN - 0036-8075, 0036-8075 KW - electrical conductivity KW - X-ray radiography KW - pressure KW - laser methods KW - density KW - isotopes KW - fluid phase KW - high pressure KW - stable isotopes KW - interferometry KW - temperature KW - radiography KW - planets KW - stars KW - metals KW - hydrogen KW - equations of state KW - deuterium KW - thermodynamic properties KW - compression KW - high temperature KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52571768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Measurements+of+the+equation+of+state+of+deuterium+at+the+fluid+insulator-metal+transition&rft.au=Collins%2C+G+W%3Bda+Silva%2C+L+B%3BCelliers%2C+P%3BGold%2C+D+M%3BFoord%2C+M+E%3BWallace%2C+R+J%3BNg%2C+A%3BWeber%2C+S+V%3BBudil%2C+K+S%3BCauble%2C+R&rft.aulast=Collins&rft.aufirst=G&rft.date=1998-08-01&rft.volume=281&rft.issue=5380&rft.spage=1178&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 28 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - compression; density; deuterium; electrical conductivity; equations of state; fluid phase; high pressure; high temperature; hydrogen; interferometry; isotopes; laser methods; metals; planets; pressure; radiography; stable isotopes; stars; temperature; thermodynamic properties; X-ray radiography ER - TY - JOUR T1 - The radiocarbon content of individual lignin-derived phenols; tracing terrestrial carbon in the marine environment AN - 52542571; 1998-066025 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - McNichol, Ann P AU - Ertel, J R AU - Eglinton, Timothy I AU - Benitez-Nelson, B Y1 - 1998/08// PY - 1998 DA - August 1998 PB - American Chemical Society, Washington, DC VL - 216 SN - 0065-7727, 0065-7727 KW - lignin KW - isotopes KW - gas chromatograms KW - vascular taxa KW - biomarkers KW - geochemical cycle KW - phenols KW - organic compounds KW - radioactive isotopes KW - marine environment KW - carbon KW - terrigenous materials KW - carbon cycle KW - C-14 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52542571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=The+radiocarbon+content+of+individual+lignin-derived+phenols%3B+tracing+terrestrial+carbon+in+the+marine+environment&rft.au=McNichol%2C+Ann+P%3BErtel%2C+J+R%3BEglinton%2C+Timothy+I%3BBenitez-Nelson%2C+B&rft.aulast=McNichol&rft.aufirst=Ann&rft.date=1998-08-01&rft.volume=216&rft.issue=&rft.spage=NUCL+081&rft.isbn=0841236275&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 216th American Chemical Society national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biomarkers; C-14; carbon; carbon cycle; gas chromatograms; geochemical cycle; isotopes; lignin; marine environment; organic compounds; phenols; radioactive isotopes; terrigenous materials; vascular taxa ER - TY - JOUR T1 - Crystal chemical control of clinopyroxene-melt partitioning in the Di-Ab-An system; implications for elemental fractionations in the depleted mantle AN - 52521184; 1999-003039 AB - The results are presented of the experimental partitioning of 15 trace elements (Rb, Sr, Zr, Nb, Ba, La, Ce, Nd, Sm, Gd, Yb, Hf, Ta, Pb, Th) between clinopyroxene and synthetic melt in two compositions along an isotherm in the diopside-albite-anorthite ternary at 1 bar P; the compositions are approximately Di (sub 65) An (sub 35) and approximately Di (sub 55) Ab (sub 45) . The results show that changes in clinopyroxene chemistry produce important shifts in inter-element partitioning. The partition coefficients of HFSE increase by factors of 2-8 due to increased (super [4]) Al in the clinopyroxenes, while other elements show little change between compositions. The relative partitioning of HFSE is also affected by (super [4]) Al variations in the clinopyroxene. The decoupling of HFSE and Sr from the REE in peridotites and melt inclusions may be due to partition coefficient changes due to decreases in clinopyroxene Al (sub 2) O (sub 3) with progressive melting. Depletions of Nb relative to Ta and Zr relative to Hf in mantle-derived magmas, reflect their peridotite source previously depleted by melt extraction in the presence of residual clinopyroxene with moderate Al (sub 2) O (sub 3) amounts. JF - Geochimica et Cosmochimica Acta AU - Lundstrom, C C AU - Shaw, H F AU - Ryerson, F J AU - Williams, Q AU - Gill, J Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 2849 EP - 2862 PB - Pergamon, Oxford VL - 62 IS - 16 SN - 0016-7037, 0016-7037 KW - silicates KW - mantle KW - substitution KW - elastic constants KW - melts KW - anorthite KW - partitioning KW - laboratory studies KW - theoretical studies KW - pyroxene group KW - clinopyroxene KW - phase equilibria KW - framework silicates KW - diopside KW - trace elements KW - geochemistry KW - synthetic materials KW - P-T conditions KW - high-field-strength elements KW - chain silicates KW - upper mantle KW - plagioclase KW - experimental studies KW - albite KW - partition coefficients KW - magmas KW - crystal chemistry KW - feldspar group KW - Young's modulus KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52521184?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Crystal+chemical+control+of+clinopyroxene-melt+partitioning+in+the+Di-Ab-An+system%3B+implications+for+elemental+fractionations+in+the+depleted+mantle&rft.au=Lundstrom%2C+C+C%3BShaw%2C+H+F%3BRyerson%2C+F+J%3BWilliams%2C+Q%3BGill%2C+J&rft.aulast=Lundstrom&rft.aufirst=C&rft.date=1998-08-01&rft.volume=62&rft.issue=16&rft.spage=2849&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900197-5 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 - 55 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - albite; anorthite; chain silicates; chemical fractionation; clinopyroxene; crystal chemistry; diopside; elastic constants; experimental studies; feldspar group; framework silicates; geochemistry; high-field-strength elements; laboratory studies; magmas; mantle; melts; P-T conditions; partition coefficients; partitioning; phase equilibria; plagioclase; pyroxene group; silicates; substitution; synthetic materials; theoretical studies; trace elements; upper mantle; Young's modulus DO - http://dx.doi.org/10.1016/S0016-7037(98)00197-5 ER - TY - JOUR T1 - (super 10) Be and (super 36) Cl concentrations in the GISP2 and Siple Dome ice cores AN - 50144442; 2009-090824 JF - Chinese Science Bulletin AU - Nishiizumi, K AU - Finkel, R C AU - Anonymous Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 94 PB - Science Press, Beijing VL - 43, Suppl. SN - 1001-6538, 1001-6538 KW - chlorine KW - concentration KW - alkaline earth metals KW - ice cores KW - Quaternary KW - Be-10 KW - isotopes KW - Cl-36 KW - halogens KW - GISP2 KW - Holocene KW - Cenozoic KW - radioactive isotopes KW - Antarctica KW - dates KW - metals KW - absolute age KW - Pleistocene KW - Siple Dome KW - accuracy KW - beryllium KW - Marie Byrd Land KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50144442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chinese+Science+Bulletin&rft.atitle=%28super+10%29+Be+and+%28super+36%29+Cl+concentrations+in+the+GISP2+and+Siple+Dome+ice+cores&rft.au=Nishiizumi%2C+K%3BFinkel%2C+R+C%3BAnonymous&rft.aulast=Nishiizumi&rft.aufirst=K&rft.date=1998-08-01&rft.volume=43%2C+Suppl.&rft.issue=&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Chinese+Science+Bulletin&rft.issn=10016538&rft_id=info:doi/ L2 - http://www.springer.com/new+%26+forthcoming+titles+%28default%29/journal/11434 LA - English DB - GeoRef N1 - Conference title - Ninth international conference on Geochronology, cosmochronology and isotope geology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; alkaline earth metals; Antarctica; Be-10; beryllium; Cenozoic; chlorine; Cl-36; concentration; dates; GISP2; halogens; Holocene; ice cores; isotopes; Marie Byrd Land; metals; Pleistocene; Quaternary; radioactive isotopes; Siple Dome ER - TY - JOUR T1 - Risk management for plausibly hormetic environmental carcinogens: The case of radon AN - 17140198; 4442498 AB - Risk management typically involves efforts to reduce human exposures by establishing regulations that limit the concentration of the substance in environmental media. In cases where a substance is widely used in commerce or is naturally occurring in the environment, compliance costs can be substantial because of nationwide requirements to add expensive control technologies. Uncertainties in a dose-response function further impact risk management decisions because they may correspond to large differences in health benefit per unit exposure reduction. These problems are highlighted in the case of plausibly hormetic environmental carcinogens, for which a linear-no-threshold (LNT) dose-response model has been the traditional regulatory default assumption. In this case, model uncertainty is pivotal, and risk management is consequently inherently controversial. However, marginal cost functions that arise for plausibly hormetic carcinogens are expected to possess a common analytic feature that may be particularly useful for this type of risk management problem. Specifically, marginal cost functions in this context are expected to have roots reflecting contaminant concentration values above which regulatory goals may be optimally placed subject to cost constraints. Here we illustrate this heuristic feature in the case of residential radon, using both a LNT model and a biologically plausible hormetic model to predict associated risks of lung cancer mortality. JF - Human & Experimental Toxicology AU - Bogen, K T AU - Layton, D W AD - Lawrence Livermore National Laboratory, Health and Ecological Assessment Division L-396, University of California, Livermore, California 94550, USA Y1 - 1998/08// PY - 1998 DA - Aug 1998 SP - 463 EP - 467 VL - 17 IS - 8 SN - 0960-3721, 0960-3721 KW - hormesis KW - risk assessment KW - risk management KW - risk reduction KW - Risk Abstracts; Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Environmental quality KW - Dose-response effects KW - Toxicity KW - Environmental health KW - Carcinogens KW - Radiation KW - Risk assessment KW - Lung cancer KW - Radon KW - R2 23030:Natural hazards KW - X 24210:Radiation & radioactive materials KW - P 8000:RADIATION KW - H 14000:Toxicology KW - H 12000:Epidemiology and Public Health KW - R2 23060:Medical and environmental health KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17140198?accountid=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=Human+%26+Experimental+Toxicology&rft.atitle=Risk+management+for+plausibly+hormetic+environmental+carcinogens%3A+The+case+of+radon&rft.au=Bogen%2C+K+T%3BLayton%2C+D+W&rft.aulast=Bogen&rft.aufirst=K&rft.date=1998-08-01&rft.volume=17&rft.issue=8&rft.spage=463&rft.isbn=&rft.btitle=&rft.title=Human+%26+Experimental+Toxicology&rft.issn=09603721&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 - Radiation; Lung cancer; Environmental quality; Radon; Risk assessment; Environmental health; Dose-response effects; Carcinogens; Toxicity ER - TY - JOUR T1 - Reactive transport modeling of plug-flow reactor experiments: quartz and tuff dissolution at 240 degree C AN - 17123699; 4425157 AB - Extension of reactive transport modeling to predict the coupled thermal, hydrological, and chemical evolution of complex geological systems is predicated on successful application of the approach to simulate well-constrained physical experiments. In this study, steady-state effluent concentrations and dissolution/precipitation features associated with crushed quartz and tuff dissolution at 240 degree C have been determined experimentally using a plug-flow reactor (PFR) and scanning electron microscopy (SEM) techniques, then modeled with the reactive transport simulator GIMRT using a linear rate law from transition state theory (TST). For quartz dissolution, interdependence of the specific surface area (A sub(m)) and reaction rate constant (k sub(m)) predicted from the modeling agrees closely with that obtained from an analytical solution to the reaction-transport equation without diffusion/dispersion, verifying the advection-dominant nature of the PFR experiments. Independently-determined A sub(qtz) and k sub(qtz) from the literature are shown to be internally consistent with respect to the model and analytical interdependence, implying appropriateness of the linear TST rate law and adequacy of BET-determined A sub(m) for use in modeling PFR experiments. Applications of this integrated approach for monomineralic dissolution include assessment of internal consistency among independent A sub(m) and k sub(m) data, estimation of k sub(m) from BET-determined A sub(m), and rapid evaluation of alternative rate laws. For tuff dissolution, accurate simulation of the experimental steady-state effluent concentrations (to within 3% for Na, Al and K; to within 15% for Si and Ca) and dearth of alteration phases (<1 vol.% in the model) defines minimum supersaturation thresholds for nucleation of primary minerals (to suppress their secondary precipitation) and the (non-unique) relative k sub(m) of hydrous aluminosilicates. For such multicomponent, multiphase experiments, reactive transport simulators provide the only practical means of estimating and constraining these kinetic parameters. Despite the approximations and uncertainties inherent in present-day models, close agreement between the experimental and simulation results reported herein provides an important measure of confidence for extending the modeling approach to address increasingly complex systems for which development of experimental analogs is impractical or impossible. JF - Journal of Hydrology (Amsterdam) AU - Johnson, J W AU - Knauss, K G AU - Glassley, W E AU - DeLoach, L D AU - Tompson, AFB AD - Geosciences and Environmental Technologies Division, L-219, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA Y1 - 1998/08// PY - 1998 DA - Aug 1998 SP - 81 EP - 111 VL - 209 IS - 1-4 SN - 0022-1694, 0022-1694 KW - GIMRT KW - SEM KW - reactive transport KW - Water Resources Abstracts KW - Prediction KW - Solubility KW - Experimental data KW - Chemical precipitation KW - Kinetics KW - Quartz KW - Simulation KW - Model studies KW - Plug flow KW - Effluents KW - Electron microscopy KW - SW 0880:Chemical processes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17123699?accountid=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=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Reactive+transport+modeling+of+plug-flow+reactor+experiments%3A+quartz+and+tuff+dissolution+at+240+degree+C&rft.au=Johnson%2C+J+W%3BKnauss%2C+K+G%3BGlassley%2C+W+E%3BDeLoach%2C+L+D%3BTompson%2C+AFB&rft.aulast=Johnson&rft.aufirst=J&rft.date=1998-08-01&rft.volume=209&rft.issue=1-4&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Reactive transport modeling of natural systems. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Prediction; Solubility; Chemical precipitation; Experimental data; Quartz; Kinetics; Simulation; Plug flow; Model studies; Effluents; Electron microscopy ER - TY - JOUR T1 - Uncertainty Analyses of Fuel Hydrocarbon Biodegradation Signatures in Ground Water by Probabilistic Modeling AN - 16550073; 4365081 AB - Natural attenuation processes, such as biodegradation, may serve as a means for remediating ground water contaminated by fuel hydrocarbons from leaking underground fuel tanks (LUFTs). Quantification of the uncertainties associated with natural attenuation, and hence the capacity to limit plume migration and restore an aquifer, is important. In this study, a probabilistic screening model is developed to quantify uncertainties involved in the impact of biodegradation on hydrocarbon plume behavior. The approach is based on Monte Carlo simulation using an analytical solution to the advective-dispersive solute transport equation, including a first-order degradation term, coupled with mass balance constraints on electron acceptor use. Empirical probability distributions for governing parameters are provided as input to the model. Application of the model to an existing LUFT site illustrates the degree of uncertainty associated with model-predicted hydrocarbon concentrations and geochemical indicators at individual site monitoring wells as well as the roles of various parameter assumptions (e.g., hydraulic conductivity, first-order decay coefficient, source term) in influencing forecasts. This information is useful for risk management planning because the degree of confidence that biodegradation will limit the impact of a hydrocarbon plume on potential receptors can be quantified. JF - Ground Water AU - McNab, WW Jr AU - Dooher, B P AD - Environmental Restoration Division, Lawrence Livermore National Laboratory, P.O. Box 808, L-530, Livermore, CA 94551, USA Y1 - 1998/08// PY - 1998 DA - Aug 1998 SP - 691 EP - 698 VL - 36 IS - 4 SN - 0017-467X, 0017-467X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Water Resources Abstracts KW - Biodegradation KW - Fuels KW - Water pollution treatment KW - Ground water KW - Monte carlo method KW - Plumes KW - Fuel KW - Mathematical models KW - Leakage KW - Hydrocarbons KW - Simulation KW - Water pollution KW - Underground storage tanks KW - Remediation KW - Groundwater pollution KW - A 01063:Utilization KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16550073?accountid=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=Ground+Water&rft.atitle=Uncertainty+Analyses+of+Fuel+Hydrocarbon+Biodegradation+Signatures+in+Ground+Water+by+Probabilistic+Modeling&rft.au=McNab%2C+WW+Jr%3BDooher%2C+B+P&rft.aulast=McNab&rft.aufirst=WW&rft.date=1998-08-01&rft.volume=36&rft.issue=4&rft.spage=691&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&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 - Biodegradation; Leakage; Mathematical models; Hydrocarbons; Water pollution treatment; Fuels; Remediation; Ground water; Simulation; Groundwater pollution; Plumes; Water pollution; Underground storage tanks; Monte carlo method; Fuel ER - TY - JOUR T1 - Chinese hamster cells meet DNA repair: an entirely acceptable affair. AN - 73876674; 9723009 AB - This personal account relates the advent of mutant isolation and other developments in somatic cell genetics that were critical steps toward isolating DNA repair mutants in mammalian cells. The isolation of auxotrophic and temperature-sensitive mutants in genetically stable Chinese hamster cell during the late 1960s and early 1970s provided a conceptual framework in which to later isolate mutations conferring hypersensitivity to ultraviolet radiation, ionizing radiation, and various chemical mutagens. Complementation group analysis of ultraviolet-sensitive mutants helped identify multiple genes that overlapped with the groups of cancer-prone xeroderma pigmentosum, as well as Cockayne syndrome. The first mammalian cell mutants defective in strand-break repair were also discovered. Subsequent cloning of human genes that corrected CHO-cell mutations in nucleotide-excision repair groups 1-6 later led to identifying the key enzymes in the incision steps of this pathway, as well as the CSB protein, which is involved in coupling excision repair and transcription. JF - BioEssays : news and reviews in molecular, cellular and developmental biology AU - Thompson, L H AD - Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, Livermore, CA 94551-0808, USA. thompson14@llnl.gov Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 589 EP - 597 VL - 20 IS - 7 SN - 0265-9247, 0265-9247 KW - Index Medicus KW - History of medicine KW - Thompson KW - United States KW - Animals KW - History, 20th Century KW - Research -- history KW - Humans KW - Genetic Complementation Test -- history KW - CHO Cells KW - Mutation KW - Cricetinae KW - DNA Repair -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/73876674?accountid=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=BioEssays+%3A+news+and+reviews+in+molecular%2C+cellular+and+developmental+biology&rft.atitle=Chinese+hamster+cells+meet+DNA+repair%3A+an+entirely+acceptable+affair.&rft.au=Thompson%2C+L+H&rft.aulast=Thompson&rft.aufirst=L&rft.date=1998-07-01&rft.volume=20&rft.issue=7&rft.spage=589&rft.isbn=&rft.btitle=&rft.title=BioEssays+%3A+news+and+reviews+in+molecular%2C+cellular+and+developmental+biology&rft.issn=02659247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-30 N1 - Date created - 1998-09-30 N1 - Date revised - 2017-02-17 N1 - People - Thompson N1 - Last updated - 2017-02-22 N1 - SubjectsTermNotLitGenreText - Thompson ER - TY - JOUR T1 - Meteoritic event recorded in Antarctic ice AN - 52586349; 1998-044251 AB - During systematic sampling of volcanic ash (tephra) layers at a well-known Antarctic meteorite collection site (the Allan Hills main ice field), a band of unusually dark and rounded (many spheroidal) particles was discovered. This debris layer (BIT-58) extends parallel to the stratigraphy of the ice established from the tephra bands, apparently marking a single depositional event. The shapes, internal texture, major element composition, and levels of cosmogenic nuclides of particles from within BIT-58 all strongly suggest that this material represents ablation debris from the passage of a large H-group ordinary chondrite. Preliminary cosmogenic isotope dating suggests an age of 2.8 Ma, implying that the East Antarctic ice sheet has been stable since that time. The relationship of the Bit-58 layer to known impact events is not clear. JF - Geology (Boulder) AU - Harvey, Ralph P AU - Dunbar, Nelia W AU - McIntosh, William C AU - Esser, Richard P AU - Nishiizumi, Kuni AU - Taylor, Susan AU - Caffee, Marc W Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 607 EP - 610 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0091-7613, 0091-7613 KW - ablation KW - isotopes KW - halogens KW - cosmogenic elements KW - upper Pliocene KW - meteorite flux KW - exposure age KW - Cenozoic KW - meteorites KW - Al-26 KW - debris KW - radioactive isotopes KW - major elements KW - dates KW - aluminum KW - Allan Hills KW - geochemistry KW - spherules KW - tephrochronology KW - chlorine KW - alkaline earth metals KW - Be-10 KW - grain size KW - Cl-36 KW - East Antarctica KW - ice sheets KW - micrometeorites KW - Tertiary KW - Antarctica KW - Neogene KW - metals KW - Victoria Land KW - Pliocene KW - beryllium KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52586349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Meteoritic+event+recorded+in+Antarctic+ice&rft.au=Harvey%2C+Ralph+P%3BDunbar%2C+Nelia+W%3BMcIntosh%2C+William+C%3BEsser%2C+Richard+P%3BNishiizumi%2C+Kuni%3BTaylor%2C+Susan%3BCaffee%2C+Marc+W&rft.aulast=Harvey&rft.aufirst=Ralph&rft.date=1998-07-01&rft.volume=26&rft.issue=7&rft.spage=607&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281998%290262.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - Number of references - 24 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - ablation; Al-26; alkaline earth metals; Allan Hills; aluminum; Antarctica; Be-10; beryllium; Cenozoic; chlorine; Cl-36; cosmogenic elements; dates; debris; East Antarctica; exposure age; geochemistry; grain size; halogens; ice sheets; isotopes; major elements; metals; meteorite flux; meteorites; micrometeorites; Neogene; Pliocene; radioactive isotopes; spherules; tephrochronology; Tertiary; upper Pliocene; Victoria Land DO - http://dx.doi.org/10.1130/0091-7613(1998)026<0607:MERIAI>2.3.CO;2 ER - TY - JOUR T1 - Manganese-53/chromium-53 dating of fayalite in Mokoia; evidence for asteroidal alteration of CV chondrites AN - 52559254; 1998-067243 JF - Meteoritics & Planetary Science AU - Hutcheon, I D AU - Krot, A N AU - Keil, K AU - Phinney, D L AU - Scott, E R D AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - A72 EP - A73 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - silicates KW - alteration KW - stony meteorites KW - asteroids KW - isotopes KW - olivine group KW - CV chondrites KW - manganese KW - stable isotopes KW - Mn-53 KW - meteorites KW - radioactive isotopes KW - Mokoia Meteorite KW - fayalite KW - orthosilicates KW - absolute age KW - Archean KW - chondrites KW - chromium KW - Precambrian KW - isotope ratios KW - carbonaceous chondrites KW - Mn/Cr KW - solar nebula KW - nesosilicates KW - Cr-53/Cr-52 KW - metals KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52559254?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Manganese-53%2Fchromium-53+dating+of+fayalite+in+Mokoia%3B+evidence+for+asteroidal+alteration+of+CV+chondrites&rft.au=Hutcheon%2C+I+D%3BKrot%2C+A+N%3BKeil%2C+K%3BPhinney%2C+D+L%3BScott%2C+E+R+D%3BAnonymous&rft.aulast=Hutcheon&rft.aufirst=I&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A72&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 10 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; alteration; Archean; asteroids; carbonaceous chondrites; chondrites; chromium; Cr-53/Cr-52; CV chondrites; fayalite; isotope ratios; isotopes; manganese; metals; meteorites; Mn-53; Mn/Cr; Mokoia Meteorite; nesosilicates; olivine group; orthosilicates; Precambrian; radioactive isotopes; silicates; solar nebula; stable isotopes; stony meteorites ER - TY - JOUR T1 - Terrestrial ages of H chondrites from Frontier Mountain, Antarctica AN - 52558325; 1998-067417 JF - Meteoritics & Planetary Science AU - Welten, K C AU - Nishiizumi, K AU - Caffee, M W AU - Wieler, R AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - ordinary chondrites KW - stony meteorites KW - isotopes KW - halogens KW - exposure age KW - stable isotopes KW - meteorites KW - radioactive isotopes KW - noble gases KW - neon KW - chondrites KW - chemical ratios KW - Frontier Mountain KW - chlorine KW - alkaline earth metals KW - Be-10 KW - isotope ratios KW - Cl-36 KW - terrestrial age KW - Ne-22/Ne-21 KW - H chondrites KW - Cl-36/Be-10 KW - weathering KW - Antarctica KW - metals KW - Victoria Land KW - beryllium KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52558325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Terrestrial+ages+of+H+chondrites+from+Frontier+Mountain%2C+Antarctica&rft.au=Welten%2C+K+C%3BNishiizumi%2C+K%3BCaffee%2C+M+W%3BWieler%2C+R%3BAnonymous&rft.aulast=Welten&rft.aufirst=K&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A166&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Antarctica; Be-10; beryllium; chemical ratios; chlorine; chondrites; Cl-36; Cl-36/Be-10; exposure age; Frontier Mountain; H chondrites; halogens; isotope ratios; isotopes; metals; meteorites; Ne-22/Ne-21; neon; noble gases; ordinary chondrites; radioactive isotopes; stable isotopes; stony meteorites; terrestrial age; Victoria Land; weathering ER - TY - JOUR T1 - Aqueous alteration on the CI parent-body evidence from oxygen- and carbon-isotopic studies of single carbonate grains from Orgueil AN - 52558020; 1998-067426 JF - Meteoritics & Planetary Science AU - Zito, K L AU - McKeegan, K D AU - Kerridge, J F AU - Hutcheon, I D AU - Leshin, L A AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - A171 EP - A172 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - alteration KW - stony meteorites KW - oxygen KW - Orgueil Meteorite KW - ion probe data KW - asteroids KW - isotopes KW - mass spectra KW - stable isotopes KW - temperature KW - dolomite KW - meteorites KW - breunnerite KW - carbon KW - spectra KW - chondrites KW - CI chondrites KW - isotope ratios KW - parent bodies KW - C-13/C-12 KW - O-18/O-16 KW - carbonaceous chondrites KW - grains KW - carbonates KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52558020?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Aqueous+alteration+on+the+CI+parent-body+evidence+from+oxygen-+and+carbon-isotopic+studies+of+single+carbonate+grains+from+Orgueil&rft.au=Zito%2C+K+L%3BMcKeegan%2C+K+D%3BKerridge%2C+J+F%3BHutcheon%2C+I+D%3BLeshin%2C+L+A%3BAnonymous&rft.aulast=Zito&rft.aufirst=K&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A171&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alteration; asteroids; breunnerite; C-13/C-12; carbon; carbonaceous chondrites; carbonates; chondrites; CI chondrites; dolomite; grains; ion probe data; isotope ratios; isotopes; mass spectra; meteorites; O-18/O-16; Orgueil Meteorite; oxygen; parent bodies; spectra; stable isotopes; stony meteorites; temperature ER - TY - JOUR T1 - Cosmogenic radionuclide studies of desert meteorites, including a new lunar meteorite AN - 52557947; 1998-067256 JF - Meteoritics & Planetary Science AU - Jull, A J T AU - Bland, P A AU - Klandrud, S E AU - McHargue, L R AU - Nishiizumi, K AU - Caffee, M W AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - meteorites KW - lunar meteorites KW - terrestrial environment KW - radioactive isotopes KW - stony meteorites KW - isotopes KW - arid environment KW - age KW - cosmogenic elements KW - achondrites KW - weathering KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52557947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Cosmogenic+radionuclide+studies+of+desert+meteorites%2C+including+a+new+lunar+meteorite&rft.au=Jull%2C+A+J+T%3BBland%2C+P+A%3BKlandrud%2C+S+E%3BMcHargue%2C+L+R%3BNishiizumi%2C+K%3BCaffee%2C+M+W%3BAnonymous&rft.aulast=Jull&rft.aufirst=A+J&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A80&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; age; arid environment; cosmogenic elements; isotopes; lunar meteorites; meteorites; radioactive isotopes; stony meteorites; terrestrial environment; weathering ER - TY - JOUR T1 - Measurements of cosmogenic calcium-41 and calcium-41/chlorine-36 terrestrial ages AN - 52556168; 1998-067323 JF - Meteoritics & Planetary Science AU - Nishiizumi, K AU - Caffee, M W AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - methods KW - chlorine KW - calcium KW - alkaline earth metals KW - isotopes KW - Ca-41 KW - isotope ratios KW - Cl-36 KW - halogens KW - terrestrial age KW - cosmogenic elements KW - measurement KW - meteorites KW - radioactive isotopes KW - chronology KW - Antarctica KW - dates KW - metals KW - mathematical methods KW - age KW - absolute age KW - Ca-41/Cl-36 KW - accuracy KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52556168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3A&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Interpersonal+Violence&rft.atitle=Witnessing+versus+experiencing+direct+violence+in+childhood+as+correlates+of+adulthood+PTSD&rft.au=Kulkarni%2C+Madhur+R.%3BGraham-Bermann%2C+Sandra%3BRauch%2C+Sheila+A.+M.%3BSeng%2C+Julia&rft.aulast=Kulkarni&rft.aufirst=Madhur&rft.date=2011-04-01&rft.volume=26&rft.issue=6&rft.spage=1264&rft.isbn=&rft.btitle=&rft.title=Journal+of+Interpersonal+Violence&rft.issn=08862605&rft_id=info:doi/10.1177%2F0886260510368159 LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 3 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; accuracy; age; alkaline earth metals; Antarctica; Ca-41; Ca-41/Cl-36; calcium; chlorine; chronology; Cl-36; cosmogenic elements; dates; halogens; isotope ratios; isotopes; mathematical methods; measurement; metals; meteorites; methods; radioactive isotopes; terrestrial age ER - TY - JOUR T1 - In situ decontamination of soil AN - 52554357; 1998-064059 AB - Methods for decontamination of soil in situ are receiving increased attention, as the requirement to clean these sites has become a national concern. The continual and costly liability is an important corporate incentive to clean contaminated soils. The development of an effective technology for in situ decontamination is a priority issue. Some in situ decontamination processes are similar to enhanced oil recovery schemes and use an integrated heating approach. One such method consists of heating by conduction and convection in conjunction with electrical heating. Advantages of electrical heating are that the energy can be focussed and the soil heated uniformly. The integrated heating approach has been extensively tested in the United States in a joint venture between Lawrence Livermore National Laboratories (LLNL) and the University of California at Berkeley. The most significant test was done at an abandoned Naval Air Base, now named the LLNL Gasoline Spill Site. It has been demonstrated that such an integrated approach can remove hydrocarbon contaminates from in situ at an accelerated rate. The objective of this paper is to present a mathematical model that solves the heat transfer problem for the integrated heating process. The model is also used to investigate the practicality of the process in terms of energy requirements and the time it takes to clean the soil. The mathematical model combines all of the principal heat transfer mechanisms of the process. These are electrical heating, convection, conduction and accumulation of energy. In addition, conductive heat losses from the sides and bottom of the heated volume and the substantial variation of electrical resistivity with temperature are included. Calculations made using the mathematical model developed in this paper are in good agreement with results obtained with the general-purpose reservoir simulator, TETRAD. JF - Journal of Canadian Petroleum Technology AU - McGee, B C W AU - Vermeulen, F E AU - Vinsome, P K W AU - Buettner, H M Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 15 EP - 22 PB - Canadian Institute of Mining and Metallurgy, Montreal, QC VL - 37 IS - 7 SN - 0021-9487, 0021-9487 KW - soils KW - TETRAD KW - technology KW - in situ KW - pollution KW - heat transfer KW - mathematical models KW - equations KW - simulation KW - temperature KW - remediation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52554357?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Canadian+Petroleum+Technology&rft.atitle=In+situ+decontamination+of+soil&rft.au=McGee%2C+B+C+W%3BVermeulen%2C+F+E%3BVinsome%2C+P+K+W%3BBuettner%2C+H+M&rft.aulast=McGee&rft.aufirst=B+C&rft.date=1998-07-01&rft.volume=37&rft.issue=7&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Journal+of+Canadian+Petroleum+Technology&rft.issn=00219487&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 13 N1 - PubXState - QC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JCPMAM N1 - SubjectsTermNotLitGenreText - equations; heat transfer; in situ; mathematical models; pollution; remediation; simulation; soils; technology; temperature; TETRAD ER - TY - JOUR T1 - Experimental investigation of cement, Topopah Spring tuff, and water interactions at 200 degree C AN - 16555507; 4377110 AB - The stability of minerals that tend to form in cementitious materials at elevated temperatures has been investigated experimentally. This information is needed to predict the effect of these materials on the performance of geologic radioactive waste repositories. Reaction of large amounts of cement used to build the repository with the surrounding rock and groundwater may cause changes in the hydrologic properties of the repository, impact metal canister and waste form corrosion rates, and alter the mobility of actinides in the subsurface. We have determined that 11 angstrom-tobermorite, calcite and quartz is the stable (or at least metastable) mineral assemblage at 200 degree C of complex experiments containing mixtures of cement, Topopah Spring tuff, diesel fuel and 3 mM NaHCO sub(3) from analyses of the solids and solutions. Mesolite did not form in these experiments, despite predictions that it is the most stable phase. A solubility constant for 11 angstrom-tobermorite was calculated to be equal to 10 super(39.4( plus or minus 1.3)) at 200 degree C for the following reaction: Ca sub(5)(SiO sub(2)) sub(6)(OH) sub(10*)0.5H sub(2)O + 10H super(+) = 5Ca super(2+) + 6SiO sub(2(aq)) + 10.5H sub(2)O. 11angstrom - tobermorite (1). This work shows that reaction periods of at least 20 days are required to reach local equilibrium or steady-state. JF - Applied Geochemistry AU - Carroll, SA AU - Alai, M AU - Bruton, C J AD - Lawrence Livermore National Laboratory, Environmental Programs Directorate, L-219, Livermore, CA 94550, USA Y1 - 1998/07// PY - 1998 DA - Jul 1998 SP - 571 EP - 579 VL - 13 IS - 5 SN - 0883-2927, 0883-2927 KW - Pollution Abstracts; Water Resources Abstracts KW - Mineralogy KW - Waste management KW - Hydrology KW - Waste disposal KW - Containment KW - Cement KW - Geochemistry KW - Radioactive wastes KW - Storage KW - Rocks KW - Corrosion KW - Groundwater KW - Minerals KW - P 8000:RADIATION KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16555507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Experimental+investigation+of+cement%2C+Topopah+Spring+tuff%2C+and+water+interactions+at+200+degree+C&rft.au=Carroll%2C+SA%3BAlai%2C+M%3BBruton%2C+C+J&rft.aulast=Carroll&rft.aufirst=SA&rft.date=1998-07-01&rft.volume=13&rft.issue=5&rft.spage=571&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&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 - Storage; Cement; Geochemistry; Corrosion; Radioactive wastes; Mineralogy; Hydrology; Waste disposal; Containment; Groundwater; Minerals; Waste management; Rocks ER - TY - JOUR T1 - A silicon-based ultrasonic immunoassay for detection of breast cancer antigens AN - 17158061; 4447630 AB - The authors report on a silicon-based immunosensor package that has direct application to the diagnostic detection of a breast cancer antigen in the sera of breast cancer patients. The authors couple the flexural plate wave (FPW) gravimetric sensor (S.W. Wenzel, R.M. White, IEEE Trans. Electron Devices 35 (1988) 735-743) with a novel mass-amplifying label that increases sensor signal level (a shift of resonant frequency) from that of previous acoustic immunoassays, in which frequency shifts were due solely to the weight of the immunoglobulins. The use of a gravimetric immunoassay with a mass-amplifying label provides an alternative to radioimmunoassay, eliminating the need for radioactive labels that require costly disposal. In addition to gravimetric sensing, the FPW device is also capable of providing a source of ultrasonic agitation, which results in localized mixing near the active immunoglobulin binding area of the device. The authors have observed increased antibody binding using ultrasonic agitation during immunoglobulin incubation periods. Consequently, with ultrasonic agitation, the authors are able to reduce the length of time necessary to complete the immunoassay and also affect the amount of antibody binding. JF - Sensors and Actuators B: Chemical AU - Wang, A W AU - Kiwan, R AU - White, R M AU - Ceriani, R L AD - Lawrence Livermore National Laboratory, 7000 East Avenue L-222, Livermore CA 94550, USA, wang24@llnl.gov Y1 - 1998/06/25/ PY - 1998 DA - 1998 Jun 25 SP - 13 EP - 21 VL - B49 IS - 1-2 SN - 0925-4005, 0925-4005 KW - man KW - silicon KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Biosensors KW - Ultrasonics KW - Antigen (tumor-associated) KW - Breast cancer KW - Immunoassays KW - W3 33120:Receptor based (antibodies, etc.) KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17158061?accountid=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=Sensors+and+Actuators+B%3A+Chemical&rft.atitle=A+silicon-based+ultrasonic+immunoassay+for+detection+of+breast+cancer+antigens&rft.au=Wang%2C+A+W%3BKiwan%2C+R%3BWhite%2C+R+M%3BCeriani%2C+R+L&rft.aulast=Wang&rft.aufirst=A&rft.date=1998-06-25&rft.volume=B49&rft.issue=1-2&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Sensors+and+Actuators+B%3A+Chemical&rft.issn=09254005&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 - Ultrasonics; Immunoassays; Antigen (tumor-associated); Breast cancer; Biosensors ER - TY - JOUR T1 - Behaviour of boron, beryllium, and lithium during melting and crystallization; constraints from mineral-melt partitioning experiments AN - 52580221; 1998-050604 AB - Analyses are presented of the partition coefficients for B, Be and Li from experiments conducted at ambient P and 1-1.5 GPa involving olivine, clinopyroxene, orthopyroxene and pargasitic amphibole coexisting with broadly basaltic melt compositions. B, Be and Li are moderately to strongly incompatible in these minerals, the mineral/melt partition coefficients decreasing in the order for olivine, clinopyroxene and orthopyroxene: Li (0.1-0.2) > Be approximately B (0.002-0.03). Amphibole/melt partition coefficients for Be and Li are similar ( approximately 0.2) and larger than those for B ( approximately 0.02). Combining the partitioning data with simple models of melting and solidification allows the evaluation of the accuracy of B/Be, B/K, B/Nb, Be/Nd, Li/V and Li/Yb ratios in primitive magmas reflecting that of their source. The distinction of IAB and OIB sources relative to MORB should be increased to include B/Be, B/Nb and Li/Yb. JF - Geochimica et Cosmochimica Acta AU - Brenan, J M AU - Neroda, E AU - Lundstrom, C C AU - Shaw, H F AU - Ryerson, F J AU - Phinney, D L Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 2129 EP - 2141 PB - Pergamon, Oxford VL - 62 IS - 12 SN - 0016-7037, 0016-7037 KW - silicates KW - igneous rocks KW - olivine group KW - melts KW - temperature KW - laboratory studies KW - pyroxene group KW - melting KW - clinopyroxene KW - phase equilibria KW - olivine KW - orthosilicates KW - trace elements KW - basaltic composition KW - geochemistry KW - chain silicates KW - liquid phase KW - alkaline earth metals KW - experimental studies KW - lithium KW - amphibole group KW - alkali metals KW - solid phase KW - nesosilicates KW - partition coefficients KW - metals KW - magmas KW - crystallization KW - boron KW - orthopyroxene KW - andesitic composition KW - high temperature KW - beryllium 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/52580221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Behaviour+of+boron%2C+beryllium%2C+and+lithium+during+melting+and+crystallization%3B+constraints+from+mineral-melt+partitioning+experiments&rft.au=Brenan%2C+J+M%3BNeroda%2C+E%3BLundstrom%2C+C+C%3BShaw%2C+H+F%3BRyerson%2C+F+J%3BPhinney%2C+D+L&rft.aulast=Brenan&rft.aufirst=J&rft.date=1998-06-01&rft.volume=62&rft.issue=12&rft.spage=2129&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900131-8 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 - 1998-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; amphibole group; andesitic composition; basaltic composition; beryllium; boron; chain silicates; clinopyroxene; crystallization; experimental studies; geochemistry; high temperature; igneous rocks; laboratory studies; liquid phase; lithium; magmas; melting; melts; metals; nesosilicates; olivine; olivine group; orthopyroxene; orthosilicates; partition coefficients; phase equilibria; pyroxene group; silicates; solid phase; temperature; trace elements DO - http://dx.doi.org/10.1016/S0016-7037(98)00131-8 ER - TY - JOUR T1 - Geochimica et Cosmochimica Acta AN - 52577058; 1998-050611 AB - The author asserts that Lewan makes statements on oil generation kinetics and expulsion which are incorrect, in particular in quoting results for activation energies that are inconsistent with kinetic analysis or geological extrapolation. JF - Geochimica et Cosmochimica Acta AU - Burnham, Alan K AU - Lewan, Michael D Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 2207 EP - 2216 PB - Pergamon, Oxford VL - 62 IS - 12 SN - 0016-7037, 0016-7037 KW - water KW - migration KW - experimental studies KW - source rocks KW - petroleum KW - genesis KW - organic compounds KW - chemical reactions KW - pyrolysis KW - open systems KW - hydrocarbons KW - kinetics KW - geochemistry KW - 29A:Economic geology, geology of energy sources KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52577058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geochimica+et+Cosmochimica+Acta&rft.au=Burnham%2C+Alan+K%3BLewan%2C+Michael+D&rft.aulast=Burnham&rft.aufirst=Alan&rft.date=1998-06-01&rft.volume=62&rft.issue=12&rft.spage=2207&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900149-5 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 - 1998-01-01 N1 - Number of references - 74 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - For reference to original see Lewan, M. D., Geochim. Cosmochim. Acta, Vol. 61, p. 3691, 1997 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical reactions; experimental studies; genesis; geochemistry; hydrocarbons; kinetics; migration; open systems; organic compounds; petroleum; pyrolysis; source rocks; water DO - http://dx.doi.org/10.1016/S0016-7037(98)00149-5 ER - TY - JOUR T1 - Oxygen isotope geochemistry of the amphiboles; isotope effects of cation substitutions in minerals AN - 52574511; 1998-050555 AB - Analyses are presented of the oxygen isotopic compositions of coexisting calcic and Fe-Mg amphiboles; these are particularly suited for examining the effects of cation substitution of O isotope partitioning. The results show significant O isotope effects associated with cation exchange, and using a new predictive approach, high-T fractionations are reproduced. Although O isotope effects of cation exchanges are generally 500 degrees C, they increase strongly at lower T. Because the cation exchanges in amphiboles also occur in many other minerals, the data presented and predictive approach suggest strong control of O isotope fractionations by mineral chemistry in surficial, diagenetic and low-T metamorphic systems. Coexisting amphiboles increasingly partition delta (super 18) O in the order: hornblende < gedrite < cummingtonite < or = anthophyllite. JF - Geochimica et Cosmochimica Acta AU - Kohn, Matthew J AU - Valley, John W Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 1947 EP - 1958 PB - Pergamon, Oxford VL - 62 IS - 11 SN - 0016-7037, 0016-7037 KW - silicates KW - calcium KW - isotope fractionation KW - oxygen KW - isotopes KW - natural materials KW - substitution KW - stable isotopes KW - clinoamphibole KW - laboratory studies KW - metamorphic rocks KW - ion exchange KW - hornblende KW - geochemistry KW - coexisting minerals KW - chain silicates KW - alkaline earth metals KW - experimental studies KW - gedrite KW - isotope ratios KW - amphibole group KW - O-18/O-16 KW - cummingtonite KW - metals KW - O-18 KW - cations KW - orthoamphibole KW - crystal chemistry KW - anthophyllite KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52574511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Oxygen+isotope+geochemistry+of+the+amphiboles%3B+isotope+effects+of+cation+substitutions+in+minerals&rft.au=Kohn%2C+Matthew+J%3BValley%2C+John+W&rft.aulast=Kohn&rft.aufirst=Matthew&rft.date=1998-06-01&rft.volume=62&rft.issue=11&rft.spage=1947&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900117-3 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 64 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; amphibole group; anthophyllite; calcium; cations; chain silicates; clinoamphibole; coexisting minerals; crystal chemistry; cummingtonite; experimental studies; gedrite; geochemistry; hornblende; ion exchange; isotope fractionation; isotope ratios; isotopes; laboratory studies; metals; metamorphic rocks; natural materials; O-18; O-18/O-16; orthoamphibole; oxygen; silicates; stable isotopes; substitution DO - http://dx.doi.org/10.1016/S0016-7037(98)00117-3 ER - TY - JOUR T1 - Multicomponent diffusion and convection in molten MgO-Al (sub 2) O (sub 3) -SiO (sub 2) AN - 52572452; 1998-050558 AB - The results are presented of the experimental determination of these processes at 1550 degrees C and 0.5 GPa in diffusion couples formed around 22.5 wt.% MgO, 17.5 wt.% Al (sub 2) O (sub 3) and 60 wt.% SiO (sub 2) . X-ray concentration maps of the sectioned diffusion charges showed that double-diffusive convection occurred in the experiments along the direction of constant SiO (sub 2) even though the denser melt was placed below the less dense composition; such double-diffusive fingering instabilities are consistent with predictions of linear stability theory. This work is an extension of earlier work on diffusion and convection (Y. Liang in Double-Diffusive Convection, 1995, ed. A. Brandt & J. Fernando: AGU Geophys. Monogr. Ser, 94 115-124), for CAS liquids. JF - Geochimica et Cosmochimica Acta AU - Richter, Frank M AU - Liang, Yan AU - Minarik, William G Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 1985 EP - 1991 PB - Pergamon, Oxford VL - 62 IS - 11 SN - 0016-7037, 0016-7037 KW - silicates KW - liquid phase KW - experimental studies KW - diffusion KW - statistical analysis KW - convection KW - least-squares analysis KW - electron probe data KW - magnesium oxide KW - laboratory studies KW - X-ray data KW - aluminum oxides KW - phase equilibria KW - oxides KW - synthesis KW - mass transfer KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52572452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Multicomponent+diffusion+and+convection+in+molten+MgO-Al+%28sub+2%29+O+%28sub+3%29+-SiO+%28sub+2%29&rft.au=Richter%2C+Frank+M%3BLiang%2C+Yan%3BMinarik%2C+William+G&rft.aulast=Richter&rft.aufirst=Frank&rft.date=1998-06-01&rft.volume=62&rft.issue=11&rft.spage=1985&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900123-9 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aluminum oxides; convection; diffusion; electron probe data; experimental studies; geochemistry; laboratory studies; least-squares analysis; liquid phase; magnesium oxide; mass transfer; oxides; phase equilibria; silicates; statistical analysis; synthesis; X-ray data DO - http://dx.doi.org/10.1016/S0016-7037(98)00123-9 ER - TY - JOUR T1 - Exposure ages and terrestrial ages of H chondrites from Frontier Mountain, North Victoria Land AN - 52452869; 1999-051014 JF - Papers Presented to the ... Symposium on Antarctic Meteorites AU - Wieler, Rainer AU - Welten, Kees C AU - Nishiizumi, Kunihiko AU - Caffee, Marc W A2 - Hirasawa, Takeo Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 170 EP - 172 PB - National Institute of Polar Research, Tokyo VL - 23 KW - Ne-21 KW - ordinary chondrites KW - stony meteorites KW - isotopes KW - halogens KW - exposure age KW - stable isotopes KW - meteorites KW - radioactive isotopes KW - noble gases KW - neon KW - chondrites KW - Frontier Mountain KW - chlorine KW - alkaline earth metals KW - Be-10 KW - isotope ratios KW - Cl-36 KW - statistical analysis KW - terrestrial age KW - Ne-22/Ne-21 KW - H chondrites KW - weathering KW - Antarctica KW - metals KW - Victoria Land KW - histograms KW - beryllium KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52452869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Papers+Presented+to+the+...+Symposium+on+Antarctic+Meteorites&rft.atitle=Exposure+ages+and+terrestrial+ages+of+H+chondrites+from+Frontier+Mountain%2C+North+Victoria+Land&rft.au=Wieler%2C+Rainer%3BWelten%2C+Kees+C%3BNishiizumi%2C+Kunihiko%3BCaffee%2C+Marc+W&rft.aulast=Wieler&rft.aufirst=Rainer&rft.date=1998-06-01&rft.volume=23&rft.issue=&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=Papers+Presented+to+the+...+Symposium+on+Antarctic+Meteorites&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 23rd symposium on Antarctic meteorites N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 13 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #03644 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Antarctica; Be-10; beryllium; chlorine; chondrites; Cl-36; exposure age; Frontier Mountain; H chondrites; halogens; histograms; isotope ratios; isotopes; metals; meteorites; Ne-21; Ne-22/Ne-21; neon; noble gases; ordinary chondrites; radioactive isotopes; stable isotopes; statistical analysis; stony meteorites; terrestrial age; Victoria Land; weathering ER - TY - JOUR T1 - What's new in SAC2000? Enhanced processing and database access AN - 50565115; 2008-126670 JF - Seismological Research Letters AU - Goldstein, Peter AU - Dodge, Doug AU - Firpo, Mike AU - Ruppert, Stan Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 202 EP - 205 PB - Seismological Society of America, El Cerrito, CA VL - 69 IS - 3 SN - 0895-0695, 0895-0695 KW - computer programs KW - seismology KW - data processing KW - data bases KW - SAC2000 computer program KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50565115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=What%27s+new+in+SAC2000%3F+Enhanced+processing+and+database+access&rft.au=Goldstein%2C+Peter%3BDodge%2C+Doug%3BFirpo%2C+Mike%3BRuppert%2C+Stan&rft.aulast=Goldstein&rft.aufirst=Peter&rft.date=1998-06-01&rft.volume=69&rft.issue=3&rft.spage=202&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 3 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - computer programs; data bases; data processing; SAC2000 computer program; seismology ER - TY - JOUR T1 - Chromosome aberrations induced in mice by chronic feeding of 2-amino-3,4-dimethylimidazo[4,5-f]quinoline (MeIQ) AN - 17100374; 4403867 AB - Dietary intake of mutagenic compounds is considered to be an important factor for the induction of some human cancers. Highly mutagenic compounds are known to be formed in meat during the cooking process. Since the discovery of such compounds, many studies have been conducted to evaluate their carcinogenic potential. One of the most mutagenic compounds formed in the cooking of meat is 2-amino-3,4-dimethylimidazo[4,5-f]quinoline (MeIQ). The recent development of mouse chromosome painting probes expand the capability of evaluating these food mutagens as potential clastogens in vivo. In this paper, we demonstrate the induction of chromosome aberrations in mice chronically exposed to MeIQ in their diet. CDF1 female mice were fed 400 ppm MeIQ beginning at 7 wk of age. At 76 wk of age, five control and eight exposed mice were euthanized. Blood and bone marrow cells were obtained and arrested in metaphase. Whole chromosome painting probes were used for fluorescence in situ hybridization of metaphase cells from blood and bone marrow. MeIQ-exposed mice were found to have a twofold increase in translocations and a 16-fold increase in fragments in their peripheral blood compared with controls. No aberrations were observed in the bone marrow. All organs were examined for the presence of tumours and routine histopathological analysis was performed on all organs as well as any tissue with macroscopic abnormalities. Forestomach and/or liver tumours developed in all but one of the mice fed MeIQ, but no such tumours were observed in the control mice. These data indicate that MeIQ is clastogenic and carcinogenic in vivo.. JF - Food and Chemical Toxicology AU - Ramsey, MJ AU - Nagao, M AU - Inoue, R AU - Fujita, H AU - Matsushima, T AU - Tucker, J D AD - Biology and Biotechnology Research Program, PO Box 808 L-452, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA Y1 - 1998/06// PY - 1998 DA - Jun 1998 SP - 467 EP - 474 VL - 36 IS - 6 SN - 0278-6915, 0278-6915 KW - 2-amino-3,4-dimethylimidazo(4,5-f)quinoline KW - mice KW - Toxicology Abstracts KW - Meat KW - Cooking KW - Chromosome aberrations KW - X 24120:Food, additives & contaminants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17100374?accountid=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=Food+and+Chemical+Toxicology&rft.atitle=Chromosome+aberrations+induced+in+mice+by+chronic+feeding+of+2-amino-3%2C4-dimethylimidazo%5B4%2C5-f%5Dquinoline+%28MeIQ%29&rft.au=Ramsey%2C+MJ%3BNagao%2C+M%3BInoue%2C+R%3BFujita%2C+H%3BMatsushima%2C+T%3BTucker%2C+J+D&rft.aulast=Ramsey&rft.aufirst=MJ&rft.date=1998-06-01&rft.volume=36&rft.issue=6&rft.spage=467&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&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 - Chromosome aberrations; Cooking; Meat ER - TY - JOUR T1 - Elements in abasic site recognition by the major human and Escherichia coli apurinic/apyrimidinic endonucleases AN - 16469392; 4335209 AB - Sites of base loss in DNA arise spontaneously, are induced by damaging agents or are generated by DNA glycosylases. Repair of these potentially mutagenic or lethal lesions is carried out by apurinic/apyrimidinic (AP) endonucleases. To test current models of AP site recognition, we examined the effects of site-specific DNA structural modifications and an F266A mutation on incision and protein-DNA complex formation by the major human AP endonuclease, Ape. Changing the ring component of the abasic site from a neutral tetrahydrofuran (F) to a positively charged pyrrolidine had only a 4-fold effect on the binding capacity of Ape. A non-polar 4-methylindole base analog opposite F had a <2-fold effect on the incision activity of Ape and the human protein was unable to incise or specifically bind 'bulged' DNA substrates. Mutant Ape F266A protein complexed with F-containing DNA with only a 6-fold reduced affinity relative to wild-type protein. Similar studies are described using Escherichia coli AP endonucleases, exonuclease III and endonuclease IV. The results, in combination with previous findings, indicate that the ring structure of an AP site, the base opposite an AP site, the conformation of AP-DNA prior to protein binding and the F266 residue of Ape are not critical elements in targeted recognition by AP endonucleases. JF - Nucleic Acids Research AU - Erzberger, J P AU - Barsky, D AU - Schaerer, O D AU - Colvin, ME AU - Wilson, DM III AD - Biology and Biotechnology Research Program, L-452, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA, wilson61@llnl.gov Y1 - 1998/06/01/ PY - 1998 DA - 1998 Jun 01 SP - 2771 EP - 2778 VL - 26 IS - 11 SN - 0305-1048, 0305-1048 KW - DNA damage KW - DNA glycosylase KW - DNA-(apurinic or apyrimidinic site) lyase KW - double prime AP endonuclease KW - endonuclease IV KW - exonuclease III KW - man KW - pyrrolidine KW - tetrahydrofuran KW - Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids KW - J 02728:Enzymes KW - N 14740:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16469392?accountid=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=Nucleic+Acids+Research&rft.atitle=Elements+in+abasic+site+recognition+by+the+major+human+and+Escherichia+coli+apurinic%2Fapyrimidinic+endonucleases&rft.au=Erzberger%2C+J+P%3BBarsky%2C+D%3BSchaerer%2C+O+D%3BColvin%2C+ME%3BWilson%2C+DM+III&rft.aulast=Erzberger&rft.aufirst=J&rft.date=1998-06-01&rft.volume=26&rft.issue=11&rft.spage=2771&rft.isbn=&rft.btitle=&rft.title=Nucleic+Acids+Research&rft.issn=03051048&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Variation in DNA repair is a factor in cancer susceptibility: a paradigm for the promises and perils of individual and population risk estimation? AN - 80044453; 9685572 AB - The repair of DNA damage protects the genome of the cell from the insults of cancer causing agents. This was originally demonstrated in individuals with the rare genetic disease, xeroderma pigmentosum, the prototype of cancer genes, and subsequently in the relationship of mismatch repair to colon cancer. Recent studies suggest that individuals with less dramatic reductions in the capacity to repair DNA damage are observed at polymorphic frequency and these individuals have an increased susceptibility to several types of cancer. Screening of individuals for DNA sequence variation in the exons of 9 DNA repair genes has resulted in identification of 15 different polymorphic amino acid substitution variants. Although the studies to relate these variants to reduced DNA repair capacity and cancer status have not been completed, the available information is sufficient to suggest that DNA repair genes should be incorporated into molecular epidemiology and cancer susceptibility studies. The availability of molecular epidemiology data presents exciting opportunities for refinement of risk estimation models and identification of individuals at increased risk of disease, with resultant opportunities for effective surveillance and early intervention and treatment. The opportunities to acquire susceptibility data are associated with possible perils for establishment of regulations for permissible exposures to carcinogenic agents and also stigmatization of 'at risk' individuals that may result in decreased access to employment opportunities and health care. JF - Mutation research AU - Mohrenweiser, H W AU - Jones, I M AD - Biology and Biotechnology Research Program, L-452, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA. mohrenweiser1@llnl.gov Y1 - 1998/05/25/ PY - 1998 DA - 1998 May 25 SP - 15 EP - 24 VL - 400 IS - 1-2 SN - 0027-5107, 0027-5107 KW - Index Medicus KW - Animals KW - Oncogenes -- genetics KW - Disease Susceptibility KW - Humans KW - Risk Assessment KW - DNA Repair -- genetics KW - Genetic Variation KW - Neoplasms -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80044453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Variation+in+DNA+repair+is+a+factor+in+cancer+susceptibility%3A+a+paradigm+for+the+promises+and+perils+of+individual+and+population+risk+estimation%3F&rft.au=Mohrenweiser%2C+H+W%3BJones%2C+I+M&rft.aulast=Mohrenweiser&rft.aufirst=H&rft.date=1998-05-25&rft.volume=400&rft.issue=1-2&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-23 N1 - Date created - 1998-09-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - The accumulation of chromosome aberrations and Dlb-1 mutations in mice with highly fractionated exposure to gamma radiation. AN - 80042993; 9685691 AB - The dichotomy between the doses at which experimental measurements of genetic effects can be made and the doses to which people are exposed is often different by two or more orders of magnitude. This presents a significant problem when determining the effects of low doses of radiation or chemicals. The solution has usually involved extrapolating the data by curve-fitting or by applying theoretical considerations. Both approaches are unsatisfactory due to uncertainties of the assumptions used in each process. The alternative solution has been to increase the sample size enormously at the lower doses. This is impractical beyond a certain point due to the variation in the spontaneous frequency and the need to quadruple the sample size for a doubling of precision. The development of new methods for measuring stable genetic effects, however, permits a simple and effective approach to this problem: if the genetic events being detected have no effect on survival, i.e., are selectively neutral, then the effects of multiple independent treatments will be additive. If the independent treatments are identical, then the effect of each is easily calculated by dividing the total effect by the number of treatments. Here we report a limited test of this approach using mice. Chromosome aberrations induced in lymphocytes and Dlb-1 mutations induced in the small intestine were measured after daily doses of 0.64, 1.85 or 5.5 cGy 137Cs gamma rays administered for 21, 42 or 63 days. The dose response curve for chromosome translocations obtained in this way, combined with the data from single larger acute doses, shows no evidence for a threshold over a 500-fold dose range. Dlb-1 mutations were increased at each dose and time but the results do not permit reliable extrapolations. The results suggest that translocations might be useful for quantifying the effect of doses below 0.05 cGy and that the effect of dose rate and dose fractionation at much lower doses than reported here could be investigated. JF - Mutation research AU - Tucker, J D AU - Sorensen, K J AU - Chu, C S AU - Nelson, D O AU - Ramsey, M J AU - Urlando, C AU - Heddle, J A AD - Biology and Biotechnology Research Program, PO Box 808, L-452, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA. tucker5@11nl.gov Y1 - 1998/05/25/ PY - 1998 DA - 1998 May 25 SP - 321 EP - 335 VL - 400 IS - 1-2 SN - 0027-5107, 0027-5107 KW - Genetic Markers KW - 0 KW - Lectins KW - Plant Lectins KW - dolichos biflorus agglutinin KW - Index Medicus KW - Translocation, Genetic -- drug effects KW - Mice, Inbred Strains KW - Animals KW - Dose Fractionation KW - Mice, Inbred C57BL KW - Intestine, Small -- chemistry KW - Mice KW - Dose-Response Relationship, Radiation KW - Female KW - Mutagenesis -- radiation effects KW - Chromosome Aberrations -- genetics KW - Lectins -- analysis KW - Gene Expression Regulation -- radiation effects KW - Gamma Rays KW - Lectins -- radiation effects KW - Lectins -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80042993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3A&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Interpersonal+Violence&rft.atitle=Intimate+partner+violence%2C+depression%2C+and+posttraumatic+stress+disorder+as+additional+predictors+of+low+birth+weight+infants+among+low-income+mothers&rft.au=Rosen%2C+Daniel%3BSeng%2C+Julia+S.%3BTolman%2C+Richard+M.%3BMallinger%2C+Gayle&rft.aulast=Rosen&rft.aufirst=Daniel&rft.date=2007-10-01&rft.volume=22&rft.issue=10&rft.spage=1305&rft.isbn=&rft.btitle=&rft.title=Journal+of+Interpersonal+Violence&rft.issn=08862605&rft_id=info:doi/10.1177%2F0886260507304551 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-23 N1 - Date created - 1998-09-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Chemical and biological factors affecting mutagen potency. AN - 80038294; 9685706 AB - This review surveys the chemical and biological factors that are correlated with the mutagenic activity of the aromatic and heterocyclic amines. Particular attention is given to the predicted quantum chemical properties of the parent amines and their metabolites. A number of chemical properties have been found to correlate well with measured mutagenic potency, including log P, the energies of the frontier orbitals of the parent amines, and the thermodynamic stability of the nitrenium ion, possibly the ultimate DNA-binding species. These correlations are intriguing clues to the mutagenic activity of the aromatic amines; however, many factors still await final explanation, including the exact mechanisms of the metabolic enzymes, the identity(s) of the ultimate DNA-binding species, the reaction mechanism in the DNA-adduction, the role of sequence context in the covalent and non-covalent binding of the adducts, and the role of DNA repair. JF - Mutation research AU - Colvin, M E AU - Hatch, F T AU - Felton, J S AD - Biology and Biotechnology Research Program Lawrence Livermore National Laboratory, Mailstop L-452, Livermore, CA 94550, USA. colvin2@llnl.gov Y1 - 1998/05/25/ PY - 1998 DA - 1998 May 25 SP - 479 EP - 492 VL - 400 IS - 1-2 SN - 0027-5107, 0027-5107 KW - Mutagens KW - 0 KW - Index Medicus KW - Animals KW - Mutagenicity Tests KW - Humans KW - Biotransformation -- drug effects KW - Structure-Activity Relationship KW - Mutagenesis KW - Mutagens -- metabolism KW - Mutagens -- pharmacology KW - Mutagens -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80038294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Chemical+and+biological+factors+affecting+mutagen+potency.&rft.au=Colvin%2C+M+E%3BHatch%2C+F+T%3BFelton%2C+J+S&rft.aulast=Colvin&rft.aufirst=M&rft.date=1998-05-25&rft.volume=400&rft.issue=1-2&rft.spage=479&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-23 N1 - Date created - 1998-09-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - XRCC2 and XRCC3, new human Rad51-family members, promote chromosome stability and protect against DNA cross-links and other damages. AN - 79997292; 9660962 AB - The phenotypically similar hamster mutants irs1 and irs1SF exhibit high spontaneous chromosome instability and broad-spectrum mutagen sensitivity, including extreme sensitivity to DNA cross-linking agents. The human XRCC2 and XRCC3 genes, which functionally complement irs1 and irs1SF, respectively, were previously mapped in somatic cell hybrids. Characterization of these genes and sequence alignments reveal that XRCC2 and XRCC3 are members of an emerging family of Rad51-related proteins that likely participate in homologous recombination to maintain chromosome stability and repair DNA damage. XRCC3 is shown to interact directly with HsRad51, and like Rad55 and Rad57 in yeast, may cooperate with HsRad51 during recombinational repair. Analysis of the XRCC2 mutation in irs1 implies that XRCC2's function is not essential for viability in cultured hamster cells. JF - Molecular cell AU - Liu, N AU - Lamerdin, J E AU - Tebbs, R S AU - Schild, D AU - Tucker, J D AU - Shen, M R AU - Brookman, K W AU - Siciliano, M J AU - Walter, C A AU - Fan, W AU - Narayana, L S AU - Zhou, Z Q AU - Adamson, A W AU - Sorensen, K J AU - Chen, D J AU - Jones, N J AU - Thompson, L H AD - Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, Livermore, California 94551, USA. Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 783 EP - 793 VL - 1 IS - 6 SN - 1097-2765, 1097-2765 KW - Cross-Linking Reagents KW - 0 KW - DNA, Complementary KW - DNA-Binding Proteins KW - RNA, Messenger KW - XRCC2 protein, human KW - RAD51 protein, human KW - EC 2.7.7.- KW - Rad51 Recombinase KW - Index Medicus KW - Animals KW - Genome, Human KW - HeLa Cells KW - Humans KW - Yeasts -- genetics KW - RNA, Messenger -- analysis KW - Cross-Linking Reagents -- metabolism KW - Precipitin Tests KW - Base Sequence KW - Transformation, Genetic KW - Genetic Complementation Test KW - Molecular Sequence Data KW - Sequence Homology, Amino Acid KW - Cricetinae KW - DNA Damage -- physiology KW - DNA-Binding Proteins -- genetics KW - Chromosomes -- physiology KW - DNA-Binding Proteins -- radiation effects KW - DNA-Binding Proteins -- metabolism KW - Chromosomes -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79997292?accountid=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+cell&rft.atitle=XRCC2+and+XRCC3%2C+new+human+Rad51-family+members%2C+promote+chromosome+stability+and+protect+against+DNA+cross-links+and+other+damages.&rft.au=Liu%2C+N%3BLamerdin%2C+J+E%3BTebbs%2C+R+S%3BSchild%2C+D%3BTucker%2C+J+D%3BShen%2C+M+R%3BBrookman%2C+K+W%3BSiciliano%2C+M+J%3BWalter%2C+C+A%3BFan%2C+W%3BNarayana%2C+L+S%3BZhou%2C+Z+Q%3BAdamson%2C+A+W%3BSorensen%2C+K+J%3BChen%2C+D+J%3BJones%2C+N+J%3BThompson%2C+L+H&rft.aulast=Liu&rft.aufirst=N&rft.date=1998-05-01&rft.volume=1&rft.issue=6&rft.spage=783&rft.isbn=&rft.btitle=&rft.title=Molecular+cell&rft.issn=10972765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-07-27 N1 - Date created - 1998-07-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Frequency, distribution and clonality of chromosome damage in human lymphocytes by multi-color FISH. AN - 79969029; 9643579 AB - Whole chromosome painting was used to determine whether the use of different sets of paints would influence results obtained from the analysis of human peripheral blood lymphocytes from 27 healthy unexposed subjects. Painting was also used to determine if aberration frequencies are proportional to the size of selected chromosomes in human lymphocytes irradiated in vitro. The in vitro results showed that the frequencies of radiation-induced stable aberrations (i.e. translocations and insertions) in chromosomes 3, 5 and 6 painted in unique colors are proportional to chromosome size. Aberration frequencies in the normal subjects were measured using two different sets of paints, one set for chromosomes 3, 5 and 6 where each chromosome was labeled in a unique color and one set where chromosomes 1, 2 and 4 were painted in a single color. The frequency of aberrations among chromosomes 1-6 in the population as a whole was also found to be proportional to chromosome size. However, some individual subjects had a distribution of damage that was not proportional to chromosome size due to the presence of clones of abnormal cells. Aberration frequencies measured in chromosomes 3, 5 and 6 as a set were highly correlated with those observed in chromosomes 1, 2 and 4 as a set, after adjusting for the different amounts of the genome that were painted. We also determined whether differences exist in the aberration frequencies measured by two scoring systems: the classical method, where reciprocal exchanges are scored as single events, and PAINT, where each break junction is scored as a single event. The two scoring systems gave highly correlated results for translocations and differed by a constant value (PAINT x 0.58 = classical method). Approximately 27% of translocations were observed to be non-reciprocal due to a failure to detect exchanges involving small amounts of material or to a non-reciprocal exchange mechanism. Our results support the hypothesis that cytogenetic evaluations for biodosimetry can be performed with any one or more of the chromosomes studied here and indicate that the aberration frequency measurements are independent of the scoring system selected for the evaluation. We also present a simple statistical method for identifying subjects that may possess clonal aberrations. JF - Mutagenesis AU - Johnson, K L AU - Tucker, J D AU - Nath, J AD - Biology and Biotechnology Research Program, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA. Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 217 EP - 227 VL - 13 IS - 3 SN - 0267-8357, 0267-8357 KW - Index Medicus KW - Translocation, Genetic -- radiation effects KW - Clone Cells KW - Gamma Rays KW - Humans KW - Adult KW - Infant, Newborn KW - Middle Aged KW - Dose-Response Relationship, Radiation KW - Cell Line, Transformed KW - Chromosome Mapping -- methods KW - Adolescent KW - Chromosome Breakage -- genetics KW - Chromosome Aberrations -- genetics KW - Lymphocytes -- radiation effects KW - In Situ Hybridization, Fluorescence -- methods KW - Lymphocytes -- cytology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79969029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutagenesis&rft.atitle=Frequency%2C+distribution+and+clonality+of+chromosome+damage+in+human+lymphocytes+by+multi-color+FISH.&rft.au=Johnson%2C+K+L%3BTucker%2C+J+D%3BNath%2C+J&rft.aulast=Johnson&rft.aufirst=K&rft.date=1998-05-01&rft.volume=13&rft.issue=3&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Mutagenesis&rft.issn=02678357&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-04-15 N1 - Date created - 1999-04-15 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Distribution and metabolism of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) in female rats and their pups at dietary doses. AN - 79950022; 9635883 AB - 2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) is a mammary carcinogen in female rats and is present in a wide variety of cooked meats. We address here the excretion of PhIP and its metabolites into the breast-milk of lactating rats and the ability of chlorophyllin, a food product derivative with chemopreventive properties, to affect these levels at low PhIP doses. Lactating female F344 rats with suckling pups were orally administered 50, 500 and 1000 ng [14C]PhIP/kg body weight. The excretion of the [14C]PhIP into milk and its distribution among the mammary tissue, liver and blood of the dam, as well as among stomach contents and liver of their suckling pups was measured using accelerator mass spectrometry (AMS). PhIP, PhIP-4'-sulfate, 4'-hydroxy-PhIP, and N2-hydroxy-PhIP-N3-glucuronide were found in the milk at all doses. The chlorophyllin (500 microg/kg) co-administration with PhIP (500 ng/kg) caused increased levels of [14C]PhIP in the milk (32%) and stomach contents (35%) of the pups relative to the animals not receiving chlorophyllin at these low PhIP doses. In contrast, lower [14C]PhIP levels in the chlorophyllin treated animals were observed in the blood (47%) and mammary tissue (68%) of the dam, as well as the pup's liver tissue (37%) compared to the animals receiving only PhIP. Chlorophyllin co-administration resulted in an increased amount of N2-hydroxy-PhIP-N3-glucuronide (42%), increased PhIP (79%) and decreased levels of PhIP-4'-sulphate (77%) relative to the animals not receiving chlorophyllin. These results suggest that PhIP and PhIP metabolites are present in the breast-milk of lactating rats at human dietary PhIP exposures and that PhIP is absorbed by the newborn. Furthermore, these results suggest that other dietary components can affect the dosimetry of PhIP in breast-feeding offspring. JF - Carcinogenesis AU - Mauthe, R J AU - Snyderwine, E G AU - Ghoshal, A AU - Freeman, S P AU - Turteltaub, K W AD - Molecular and Structural Biology Division and Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA. Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 919 EP - 924 VL - 19 IS - 5 SN - 0143-3334, 0143-3334 KW - Carcinogens KW - 0 KW - Chlorophyllides KW - Imidazoles KW - chlorophyllin KW - 1D276TYV9O KW - 2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine KW - 909C6UN66T KW - Index Medicus KW - Rats KW - Animals, Suckling KW - Administration, Oral KW - Animals, Newborn KW - Animals KW - Rats, Inbred F344 KW - Chlorophyllides -- pharmacology KW - Tissue Distribution KW - Diet KW - Female KW - Chromatography, High Pressure Liquid KW - Lactation KW - Imidazoles -- pharmacokinetics KW - Carcinogens -- metabolism KW - Carcinogens -- administration & dosage KW - Imidazoles -- metabolism KW - Imidazoles -- administration & dosage KW - Carcinogens -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79950022?accountid=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+Neuroendocrinology&rft.atitle=In+search+of+neural+endophenotypes+of+postpartum+psychopathology+and+disrupted+maternal+caregiving&rft.au=Moses%E2%80%90Kolko%2C+E.+L.%3BHorner%2C+M.+S.%3BPhillips%2C+M.+L.%3BHipwell%2C+A.+E.%3BSwain%2C+J.+E.&rft.aulast=Moses%E2%80%90Kolko&rft.aufirst=E.&rft.date=2014-10-01&rft.volume=26&rft.issue=10&rft.spage=665&rft.isbn=&rft.btitle=&rft.title=Journal+of+Neuroendocrinology&rft.issn=09538194&rft_id=info:doi/10.1111%2Fjne.12183 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-07-09 N1 - Date created - 1998-07-09 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Hydrostratigraphic analysis; ground water cleanup at Lawrence Livermore National Laboratory AN - 52609074; 1998-034774 AB - Cost-effective ground water cleanup requires a thorough understanding of the hydrogeologic factors that control subsurface flow and transport of contaminants. At Lawrence Livermore National Laboratory (LLNL), a methodology termed hydrostratigraphic analysis is employed to divide the complex alluvial sediments beneath LLNL into hydrostratigraphic units (HSUs). HSUs are defined as sedimentary sequences whose permeable layers show evidence of hydraulic communication and interconnection. In contrast, hydraulic communication between HSUs is restricted across HSU boundaries. HSUs are based on a comprehensive analysis and integration of chemical, hydrogeological, geological, geophysical, and aquifer test data. At LLNL, eight HSUs have been identified in the underlying 300 foot thick sequence of unconsolidated sediments. The HSU approach is used to optimize the location of wells associated with the monitoring, hydraulic containment, and systematic cleanup of ground water contaminant plumes and their source areas. Borehole and well locations are based on detailed mapping of higher-permeability sediment distribution, ground water gradients, and contaminant distributions in soil and ground water in each HSU. Understanding the subsurface features that control contaminant flow and transport has enabled LLNL to effectively implement remediation plans, decrease cleanup times, and reduce overall project costs. The significant progress made towards hydraulically controlling and cleaning up the contaminant plumes over the last eight years is clearly evidenced by isoconcentration time series maps, hydraulic capture maps, and mass removal rate plots for each HSU. Hydrostratigraphic analysis is a key tool for demonstrating cost-effective ground water cleanup to DOE, the regulators, and the community. JF - AAPG Bulletin AU - Blake, Richard G AU - Anonymous Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 842 PB - American Association of Petroleum Geologists, Tulsa, OK VL - 82 IS - 5A SN - 0149-1423, 0149-1423 KW - United States KW - soils KW - monitoring KW - contaminant plumes KW - Central California KW - pollution KW - Alameda County California KW - cost KW - remediation KW - ground water KW - aquifers KW - California KW - hydrostratigraphy KW - planning KW - Lawrence Livermore National Laboratory KW - movement KW - water wells KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52609074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AAPG+Bulletin&rft.atitle=Hydrostratigraphic+analysis%3B+ground+water+cleanup+at+Lawrence+Livermore+National+Laboratory&rft.au=Blake%2C+Richard+G%3BAnonymous&rft.aulast=Blake&rft.aufirst=Richard&rft.date=1998-05-01&rft.volume=82&rft.issue=5A&rft.spage=842&rft.isbn=&rft.btitle=&rft.title=AAPG+Bulletin&rft.issn=01491423&rft_id=info:doi/ L2 - http://aapgbull.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - 1998 AAPG Pacific Section meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 1998-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - AABUD2 N1 - SubjectsTermNotLitGenreText - Alameda County California; aquifers; California; Central California; contaminant plumes; cost; ground water; hydrostratigraphy; Lawrence Livermore National Laboratory; monitoring; movement; permeability; planning; pollution; remediation; soils; United States; water wells ER - TY - JOUR T1 - The need for mass balance and feedback in the geochemical carbon cycle; discussion and reply AN - 52608536; 1998-033594 JF - Geology (Boulder) AU - Bickle, Mike J AU - Caldeira, Ken AU - Berner, Robert A Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 477 EP - 478 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 5 SN - 0091-7613, 0091-7613 KW - chemical weathering KW - plate collision KW - uplifts KW - atmosphere KW - global change KW - weathering KW - orogeny KW - geochemical cycle KW - carbon dioxide KW - plate tectonics KW - mass balance KW - carbon KW - silicate rocks KW - Himalayas KW - carbon cycle KW - Asia KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52608536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+need+for+mass+balance+and+feedback+in+the+geochemical+carbon+cycle%3B+discussion+and+reply&rft.au=Bickle%2C+Mike+J%3BCaldeira%2C+Ken%3BBerner%2C+Robert+A&rft.aulast=Bickle&rft.aufirst=Mike&rft.date=1998-05-01&rft.volume=39&rft.issue=4&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Birth%3A+Issues+in+Perinatal+Care&rft.issn=07307659&rft_id=info:doi/10.1111%2Fbirt.12005 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - Number of references - 27 N1 - PubXState - CO N1 - SuppNotes - For reference to original see Berner, R. A., and Caldeira, K., Geology (Boulder), Vol. 25, p. 955, 1997 N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Asia; atmosphere; carbon; carbon cycle; carbon dioxide; chemical weathering; geochemical cycle; geochemistry; global change; Himalayas; mass balance; orogeny; plate collision; plate tectonics; silicate rocks; uplifts; weathering DO - http://dx.doi.org/10.1130/0091-7613(1998)026<0477:TNFMBA>2.3.CO;2 ER - TY - JOUR T1 - Ground water plume migration in a complex hydrogeologic setting at Lawrence Livermore National Laboratory (LLNL), Site 300 AN - 52605886; 1998-034816 AB - We are evaluating the influence of two separate ground water flow systems on plume migration in a complex hydrogeologic setting at Lawrence Livermore National Laboratory, Site 300. Site 300 is an 11-square mile Department of Energy experimental test facility and superfund site located in the semi-arid, rugged terrain of the Altamont Hills near Tracy, California. Ground water flow at Site 300 occurs mainly in two distinct aquifer types, alluvial and bedrock. The Quaternary alluvial aquifers are 10-30 feet-thick and consist of sand and gravel deposited in southeast- to northeast-trending canyons that ultimately flow into the San Joaquin Valley. The bedrock aquifers occur in the Miocene Neroly Formation, a 500+ foot-thick, fluvial-lacustrine sequence consisting of interbedded claystone, siltstone, sandstone, and conglomerate. The alluvial aquifers are characterized by high hydraulic conductivity and flow velocity. Ground water flow is controlled by channel geometry and contaminant transport is dominated by advective and dispersive processes due to high flow velocities. In contrast, the bedrock aquifers are characterized by low hydraulic conductivity and low ground water flow velocity. Ground water flow is controlled by bedrock structure and contaminant transport is strongly influenced by diffusive and sorptive processes due to very low flow velocities. Plume migration at the site is influenced by the seasonal interaction between these two flow systems. Evidence demonstrating the interaction between these two flow systems and their impact on trichloroethylene and tritium plumes will be presented to illustrate these concepts. JF - AAPG Bulletin AU - Madrid, Vic AU - Demir, Zafer AU - Landgraf, Richard AU - Hoffman, Fred AU - Anonymous Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 852 PB - American Association of Petroleum Geologists, Tulsa, OK VL - 82 IS - 5A SN - 0149-1423, 0149-1423 KW - United States KW - chlorinated hydrocarbons KW - sorption KW - terrestrial environment KW - contaminant plumes KW - isotopes KW - semi-arid environment KW - Altamont Hills KW - tritium KW - Alameda County California KW - gravel KW - ground water KW - California KW - radioactive isotopes KW - Lawrence Livermore National Laboratory KW - movement KW - sediments KW - velocity KW - thickness KW - halogenated hydrocarbons KW - sand KW - diffusion KW - San Joaquin Valley KW - clastic sediments KW - chemical dispersion KW - pollutants KW - Central California KW - pollution KW - Neroly Formation KW - aquifers KW - organic compounds KW - LLNL Site 300 KW - hydrogen KW - channel geometry KW - trichloroethylene KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52605886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AAPG+Bulletin&rft.atitle=Ground+water+plume+migration+in+a+complex+hydrogeologic+setting+at+Lawrence+Livermore+National+Laboratory+%28LLNL%29%2C+Site+300&rft.au=Madrid%2C+Vic%3BDemir%2C+Zafer%3BLandgraf%2C+Richard%3BHoffman%2C+Fred%3BAnonymous&rft.aulast=Madrid&rft.aufirst=Vic&rft.date=1998-05-01&rft.volume=82&rft.issue=5A&rft.spage=852&rft.isbn=&rft.btitle=&rft.title=AAPG+Bulletin&rft.issn=01491423&rft_id=info:doi/ L2 - http://aapgbull.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - 1998 AAPG Pacific Section meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 1998-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - AABUD2 N1 - SubjectsTermNotLitGenreText - Alameda County California; Altamont Hills; aquifers; California; Central California; channel geometry; chemical dispersion; chlorinated hydrocarbons; clastic sediments; contaminant plumes; diffusion; gravel; ground water; halogenated hydrocarbons; hydrogen; isotopes; Lawrence Livermore National Laboratory; LLNL Site 300; movement; Neroly Formation; organic compounds; pollutants; pollution; radioactive isotopes; San Joaquin Valley; sand; sediments; semi-arid environment; sorption; terrestrial environment; thickness; trichloroethylene; tritium; United States; velocity ER - TY - JOUR T1 - Relative contributions of plume migration, source impact, and radioactive decay in the attenuation of two tritium ground water plumes at Lawrence Livermore National Laboratory Site 300 AN - 52605860; 1998-034857 AB - We are studying spatial and temporal variations in two tritium ground water plumes in the complex hydrogeologic setting of Lawrence Livermore National Laboratory Site 300. Site 300 is an 11-square mile Department of Energy explosives test facility and Superfund site located in the semi-arid, rugged terrain of the California Coast Ranges near Tracy, California. The sources for one plume are two unlined landfills containing tritium-bearing debris. Local changes in ground water levels have caused releases of tritium from the landfills to the vadose zone and ground water. The source for the second plume is an explosives testing platform, where tritium has accumulated in the shallow subsurface. Rainfall percolating through the platform carries tritium downward to ground water. Semi-annual tritium activity contour maps and saturated thickness maps from 1985 to 1997 (approximately one tritium half-life) were developed to determine changes in plume locations and total tritium activity. We find that despite releases of tritium to ground water, 1) the locations of the lower tritium-activity contours do not change substantially with time, and 2) the dominant plume attenuation mechanism appears to be radioactive decay. JF - AAPG Bulletin AU - Woodward, R AU - Madrid, Vic AU - Green-Horner, L AU - Taffet, M AU - Oberdorfer, J AU - Anonymous Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 862 PB - American Association of Petroleum Geologists, Tulsa, OK VL - 82 IS - 5A SN - 0149-1423, 0149-1423 KW - United States KW - terrestrial environment KW - contaminant plumes KW - isotopes KW - landfills KW - semi-arid environment KW - mechanism KW - radioactive decay KW - tritium KW - Alameda County California KW - variations KW - ground water KW - California KW - attenuation KW - saturated zone KW - radioactive isotopes KW - levels KW - Lawrence Livermore National Laboratory KW - LLNL Site 300 KW - hydrogen KW - temporal distribution KW - waste disposal KW - Northern California KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52605860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AAPG+Bulletin&rft.atitle=Relative+contributions+of+plume+migration%2C+source+impact%2C+and+radioactive+decay+in+the+attenuation+of+two+tritium+ground+water+plumes+at+Lawrence+Livermore+National+Laboratory+Site+300&rft.au=Woodward%2C+R%3BMadrid%2C+Vic%3BGreen-Horner%2C+L%3BTaffet%2C+M%3BOberdorfer%2C+J%3BAnonymous&rft.aulast=Woodward&rft.aufirst=R&rft.date=1998-05-01&rft.volume=82&rft.issue=5A&rft.spage=862&rft.isbn=&rft.btitle=&rft.title=AAPG+Bulletin&rft.issn=01491423&rft_id=info:doi/ L2 - http://aapgbull.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - 1998 AAPG Pacific Section meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 1998-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - AABUD2 N1 - SubjectsTermNotLitGenreText - Alameda County California; attenuation; California; contaminant plumes; ground water; hydrogen; isotopes; landfills; Lawrence Livermore National Laboratory; levels; LLNL Site 300; mechanism; Northern California; radioactive decay; radioactive isotopes; saturated zone; semi-arid environment; temporal distribution; terrestrial environment; tritium; United States; variations; waste disposal ER - TY - JOUR T1 - Radiocarbon dates of Kennewick Man; discussion AN - 52600578; 1998-036075 JF - Science AU - Taylor, R E AU - Kirner, Donna L AU - Southon, John R AU - Chatters, James C Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 1171 EP - 1173 PB - American Association for the Advancement of Science, Washington, DC VL - 280 IS - 5367 SN - 0036-8075, 0036-8075 KW - anthropology KW - lower Holocene KW - diet KW - isotopes KW - Holocene KW - stable isotopes KW - upper Pleistocene KW - Cenozoic KW - radioactive isotopes KW - errors KW - sampling KW - Kennewick Man KW - dates KW - ion chromatography KW - carbon KW - bones KW - amino acids KW - skeletons KW - absolute age KW - accelerator mass spectroscopy KW - uncertainty KW - Quaternary KW - C-13/C-12 KW - mass spectroscopy KW - morphology KW - organic compounds KW - organic acids KW - collagen KW - fossil man KW - DNA KW - Pleistocene KW - C-14 KW - spectroscopy KW - proteins KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52600578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Radiocarbon+dates+of+Kennewick+Man%3B+discussion&rft.au=Taylor%2C+R+E%3BKirner%2C+Donna+L%3BSouthon%2C+John+R%3BChatters%2C+James+C&rft.aulast=Taylor&rft.aufirst=R&rft.date=1998-05-01&rft.volume=280&rft.issue=5367&rft.spage=1171&rft.isbn=&rft.btitle=&rft.title=Maternal+and+Child+Health+Journal&rft.issn=10927875&rft_id=info:doi/10.1007%2Fs10995-010-0638-z L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 7 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Morell, Virginia, Science, vol. 280, no. 5361, p. 190, 1998 N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - absolute age; accelerator mass spectroscopy; amino acids; anthropology; bones; C-13/C-12; C-14; carbon; Cenozoic; collagen; dates; diet; DNA; errors; fossil man; Holocene; ion chromatography; isotopes; Kennewick Man; lower Holocene; mass spectroscopy; morphology; organic acids; organic compounds; Pleistocene; proteins; Quaternary; radioactive isotopes; sampling; skeletons; spectroscopy; stable isotopes; uncertainty; upper Pleistocene ER - TY - JOUR T1 - Mechanisms of transformation and deformation in Mg (sub 1.8) Fe (sub 0.2) SiO (sub 4) olivine and wadsleyite under non-hydrostatic stress AN - 52595169; 1998-040920 AB - We have studied the effect of non-hydrostatic stress on the mechanisms of the olivine-wadsleyite-ringwoodite (alpha -beta -gamma ) phase transformations and deformation mechanisms of olivine and wadsleyite at high pressure. Experiments were performed at 900 degrees C in the beta -stability field (15 GPa) for 0.5 h and in the beta +gamma stability field (16 GPa) for 11 h using a multianvil apparatus with San Carlos olivine as the starting material. A sample assembly designed to produce non-hydrostatic stress was used. The deformed samples have been characterised using optical and transmission electron microscopy. Remnant olivine contains high densities of mostly c dislocations and deformation occurs by dislocation glide involving the slip systems (010)[001] and (100)[001]. In wadsleyite, dislocations are in a climb configuration which suggests that self diffusion of Si and/or O is much faster in wadsleyite than in olivine at approximately 900 degrees C. Wadsleyite also contains (010) (sub beta ) stacking faults which are interpreted to be growth defects that anneal out with time. During the olivine-wadsleyite transformation, non-hydrostatic stress results in anisotropic reaction textures. Wadsleyite nucleates preferentially on olivine grain boundaries which are oriented at a high angle to the direction of principal compressive stress and/or the growth of wadsleyite occurs preferentially in this direction. Wadsleyite transforms to ringwoodite by two competing mechanisms: (i) coherent intracrystalline nucleation on a dislocations, probably where they intersect (010) (sub beta ) stacking faults, and (ii) partially-coherent nucleation at wadsleyite grain boundaries. Non-hydrostatic stress enhances transformation rates by increasing the density of dislocations which act as nucleation sites for ringwoodite. Although the samples were partially reacted under non-hydrostatic stress, there is no evidence for transformational faulting. JF - Physics of the Earth and Planetary Interiors AU - Dupas-Bruzek, Catherine AU - Sharp, Thomas G AU - Rubie, David C AU - Durham, William B Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 33 EP - 48 PB - Elsevier, Amsterdam VL - 108 IS - 1 SN - 0031-9201, 0031-9201 KW - silicates KW - experimental studies KW - pressure KW - stress KW - stability KW - mantle KW - phase transitions KW - olivine group KW - subduction KW - high pressure KW - TEM data KW - temperature KW - nesosilicates KW - ringwoodite KW - plate tectonics KW - chemical reactions KW - wadsleyite KW - olivine KW - orthosilicates KW - anvil cells KW - high temperature KW - crust KW - P-T conditions KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52595169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mechanisms+of+transformation+and+deformation+in+Mg+%28sub+1.8%29+Fe+%28sub+0.2%29+SiO+%28sub+4%29+olivine+and+wadsleyite+under+non-hydrostatic+stress&rft.au=Dupas-Bruzek%2C+Catherine%3BSharp%2C+Thomas+G%3BRubie%2C+David+C%3BDurham%2C+William+B&rft.aulast=Dupas-Bruzek&rft.aufirst=Catherine&rft.date=1998-05-01&rft.volume=108&rft.issue=1&rft.spage=33&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 - 1998-01-01 N1 - Number of references - 69 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - anvil cells; chemical reactions; crust; experimental studies; high pressure; high temperature; mantle; nesosilicates; olivine; olivine group; orthosilicates; P-T conditions; phase transitions; plate tectonics; pressure; ringwoodite; silicates; stability; stress; subduction; TEM data; temperature; wadsleyite ER - TY - JOUR T1 - DeepLook researches a new strategy; neural networks AN - 52566889; 1998-057855 JF - World Oil AU - Stoessel, Ed AU - Johnson, Virginia AU - Rogers, Leah AU - Scheevel, Jay Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 83 EP - 84, 91 PB - [IRM, etc.], Houston, TX VL - 219 IS - 5 SN - 0043-8790, 0043-8790 KW - petroleum exploration KW - technology KW - optimization KW - petroleum KW - Gulf of Mexico KW - reservoir rocks KW - models KW - DeepLook KW - neural networks KW - algorithms KW - North Atlantic KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52566889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Oil&rft.atitle=DeepLook+researches+a+new+strategy%3B+neural+networks&rft.au=Stoessel%2C+Ed%3BJohnson%2C+Virginia%3BRogers%2C+Leah%3BScheevel%2C+Jay&rft.aulast=Stoessel&rft.aufirst=Ed&rft.date=1998-05-01&rft.volume=219&rft.issue=5&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=World+Oil&rft.issn=00438790&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - WOOIAS N1 - SubjectsTermNotLitGenreText - algorithms; Atlantic Ocean; DeepLook; Gulf of Mexico; models; neural networks; North Atlantic; optimization; petroleum; petroleum exploration; reservoir rocks; technology ER - TY - RPRT T1 - The isotope hydrology of catchment basins; lithogenic and cosmogenic isotopic systems AN - 51389049; 2007-091337 JF - The isotope hydrology of catchment basins; lithogenic and cosmogenic isotopic systems AU - Nimz, Gregory J Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 43 VL - UCRL-JC-131027 KW - isotopes KW - halogens KW - cosmogenic elements KW - stable isotopes KW - hydrologic cycle KW - radioactive isotopes KW - chemical reactions KW - water-rock interaction KW - weathered materials KW - drainage basins KW - trace elements KW - geochemistry KW - hydrology KW - chlorine KW - concentration KW - alkaline earth metals KW - isotope ratios KW - Cl-36 KW - solutes KW - Sr-87 KW - water balance KW - hydrochemistry KW - streamflow KW - dissolved materials KW - metals KW - uranium KW - U-238/U-234 KW - U-238 KW - actinides KW - strontium KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51389049?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=Archives+of+Women%27s+Mental+Health&rft.atitle=Anxiety+and+depression+in+women+and+men+from+early+pregnancy+to+3-months+postpartum&rft.au=Figueiredo%2C+B%C3%A1rbara%3BConde%2C+Ana&rft.aulast=Figueiredo&rft.aufirst=B%C3%A1rbara&rft.date=2011-06-01&rft.volume=14&rft.issue=3&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Archives+of+Women%27s+Mental+Health&rft.issn=14341816&rft_id=info:doi/10.1007%2Fs00737-011-0217-3 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 202 N1 - Availability - National Technical Information Service, Springfield, VA, United States N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Mantle melting systematics; transition from continental to oceanic volcanism on the Southeast Greenland margin AN - 50497740; 1999-065276 JF - Proceedings of the Ocean Drilling Program, Scientific Results AU - Fram, Miranda S AU - Lesher, C E AU - Volpe, A M AU - Clift, Peter D AU - Ali, Jason Richard AU - Beget, James AU - Cambray, Herve AU - Demant, Alain AU - Fitton, J Godfrey AU - Fukuma, Koji AU - Gieskes, Joris M AU - Holmes, Mary Anne AU - Hunt, John M AU - Lacasse, Christian AU - Larsen, Lotte Melchior AU - Lykke-Andersen, Holger AU - Meltser, Alexandr AU - Morrison, Martin L AU - Nemoto, Naoki AU - Okay, Nilgun AU - Saito, Saneatsu AU - Sinton, Christopher W AU - Spezzaferri, Silvia AU - Stax, Rainer AU - Vallier, Tracy L AU - Vandamme, Didier AU - Wei, Wuchang AU - Werner, Reinhard A2 - Saunders, Andrew D. A2 - Larsen, Hans Christian A2 - Wise, S. W., Jr. Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 373 EP - 386 PB - Texas A & M University, Ocean Drilling Program, College Station, TX VL - 152 SN - 0884-5891, 0884-5891 KW - oceanic crust KW - igneous rocks KW - mantle KW - continental crust KW - ultramafic composition KW - rifting KW - Greenland KW - melting KW - volcanism KW - trace elements KW - chemical composition KW - basaltic composition KW - geochemistry KW - mantle plumes KW - picrite KW - continental margin KW - Leg 152 KW - Arctic region KW - plate tectonics KW - transition zones KW - Ocean Drilling Program KW - North Atlantic KW - East Greenland KW - crust KW - Atlantic Ocean KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50497740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Ocean+Drilling+Program%2C+Scientific+Results&rft.atitle=Mantle+melting+systematics%3B+transition+from+continental+to+oceanic+volcanism+on+the+Southeast+Greenland+margin&rft.au=Fram%2C+Miranda+S%3BLesher%2C+C+E%3BVolpe%2C+A+M%3BClift%2C+Peter+D%3BAli%2C+Jason+Richard%3BBeget%2C+James%3BCambray%2C+Herve%3BDemant%2C+Alain%3BFitton%2C+J+Godfrey%3BFukuma%2C+Koji%3BGieskes%2C+Joris+M%3BHolmes%2C+Mary+Anne%3BHunt%2C+John+M%3BLacasse%2C+Christian%3BLarsen%2C+Lotte+Melchior%3BLykke-Andersen%2C+Holger%3BMeltser%2C+Alexandr%3BMorrison%2C+Martin+L%3BNemoto%2C+Naoki%3BOkay%2C+Nilgun%3BSaito%2C+Saneatsu%3BSinton%2C+Christopher+W%3BSpezzaferri%2C+Silvia%3BStax%2C+Rainer%3BVallier%2C+Tracy+L%3BVandamme%2C+Didier%3BWei%2C+Wuchang%3BWerner%2C+Reinhard&rft.aulast=Fram&rft.aufirst=Miranda&rft.date=1998-05-01&rft.volume=152&rft.issue=&rft.spage=373&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Scientific+Results&rft.issn=08845891&rft_id=info:doi/10.2973%2Fodp.proc.sr.152.236.1998 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 61 N1 - PubXState - TX N1 - Document feature - illus. incl. 6 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Arctic region; Atlantic Ocean; basaltic composition; chemical composition; continental crust; continental margin; crust; East Greenland; geochemistry; Greenland; igneous rocks; Leg 152; mantle; mantle plumes; melting; North Atlantic; Ocean Drilling Program; oceanic crust; picrite; plate tectonics; rifting; trace elements; transition zones; ultramafic composition; volcanism DO - http://dx.doi.org/10.2973/odp.proc.sr.152.236.1998 ER - TY - JOUR T1 - A study of porosity and permeability using a lattice Boltzmann simulation AN - 50161715; 1998-058081 AB - We explicitly calculate the absolute (single-phase) permeability of simulated granular rocks as the pore space is evolved by various diagenetic schemes. Our goal is to match our computed curves to laboratory measurements of porosity-permeability relationships in real rocks. To achieve this goal we model rock as a dense random pack of identical spherical grains with diagenetic cement deposited in the pore space. The positions of the sphere centers in our numerical model are taken from experimental measurements (the Finney pack). The diagenesis is simulated in various ways: uniform cement deposition on the surface of each grain (uniform growth of the grains); cement deposition at grain contacts; cement deposition away from grain contacts; random filling of the pore spaces; and various combinations of these. Permeability is computed by explicitly modeling Stokes flow in the simulated pore space using a lattice Boltzmann method. Our simulations produce distinctively different porosity-permeability relationships which are characteristic of the cement deposition pattern. The distinctive porosity-permeability relationships found in laboratory measurements of real rocks are matched by certain simulation schemes. Copyright 1998 by the American Geophysical Union. JF - Geophysical Research Letters AU - Bosl, William J AU - Dvorkin, Jack AU - Nur, Amos Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 1475 EP - 1478 PB - American Geophysical Union, Washington, DC VL - 25 IS - 9 SN - 0094-8276, 0094-8276 KW - Boltzmann simulation KW - Stokes flow KW - cementation KW - grain size KW - sandstone KW - simulation KW - porosity KW - boundary conditions KW - reservoir rocks KW - sedimentary rocks KW - granular materials KW - diagenesis KW - lattice parameters KW - clastic rocks KW - pore water KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50161715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Mental+Health+Systems&rft.atitle=Socio-cultural+factors+surrounding+mental+distress+during+the+perinatal+period+in+Zambia%3A+A+qualitative+investigation&rft.au=Mwape%2C+Lonia%3BMcGuinness%2C+Teena+M.%3BDixey%2C+Rachael%3BJohnson%2C+Sally+E.&rft.aulast=Mwape&rft.aufirst=Lonia&rft.date=2012-09-06&rft.volume=6&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Mental+Health+Systems&rft.issn=1752-4458&rft_id=info:doi/10.1186%2F1752-4458-6-12 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 8 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Boltzmann simulation; boundary conditions; cementation; clastic rocks; diagenesis; grain size; granular materials; lattice parameters; permeability; pore water; porosity; reservoir rocks; sandstone; sedimentary rocks; simulation; Stokes flow DO - http://dx.doi.org/10.1029/98GL00859 ER - TY - JOUR T1 - Evaluation of the annual cycle of precipitation over the United States in GCMs: AMIP simulations AN - 17186870; 4478525 AB - The monthly mean precipitation patterns of the Atmospheric Model Intercomparison Project decadal simulations over the United States and adjoining oceans are intercompared. A simple harmonic analysis of the 12-month seasonal mean precipitation values and a principal component (PC) analysis of the 120 monthly values were carried out. Emphasis is placed on the basic seasonal variation for three subregions: the eastern and central United States and the U.S. west coast. It is vital for GCM simulations to accurately portray the seasonal cycle. The results indicate the following. 1) There are problems for almost all the models in capturing the seasonal variation of the precipitation over the eastern United States. The models typically overemphasize the summer-spring rainfall amounts. The PC analysis indicates that many of the models tend to extend the precipitation regime typical of the central United States too far to the east, resulting in a precipitation maxima occurring in the summer for the eastern region. 2) The seasonal variation of the West Coast is handled with the greatest fidelity. This result cuts across all the models and may be attributable to the fact the SST forcing is specified and common to all the simulations. The common SST forcing is apparently a dominant factor in determining this region's precipitation climatology. 3) On the space scales of the regions selected, there is little consistent evidence that points to any specific model feature as a predictor of model performance. None of the obvious candidates such as horizontal resolution, convective closure schemes, or land surface schemes are reliable discriminators of a model's ability to simulate precipitation. 4) For one smaller subregion centered over Arizona, chosen because of the dominance of the semiannual cycle, there is evidence that increased horizontal resolution has an effect. For this intermountain region the higher-resolution models as a whole do better than the low-resolution models. However, even in this case there is enough variation among the individual simulations to obscure the conclusion that increased horizontal resolution is a necessary or sufficient quality to produce a reliable simulation. 5) The models tend to have less interannual variation than the observations with more variance being explained by the leading (annual cycle) PC, whereas the observations have a less peaked spectrum. JF - Journal of Climate AU - Boyle, J S AD - PCMDI, Lawrence Livermore National Laboratory, University of California, Mail Stop L-264, P.O. Box 808, Livermore, CA 94550, USA Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 1041 EP - 1055 VL - 11 IS - 5 SN - 0894-8755, 0894-8755 KW - General Circulation Models KW - Water Resources Abstracts KW - Principal component analysis KW - Rainfall KW - Climates KW - Model studies KW - Precipitation KW - Atmosphere KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17186870?accountid=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=Journal+of+Climate&rft.atitle=Evaluation+of+the+annual+cycle+of+precipitation+over+the+United+States+in+GCMs%3A+AMIP+simulations&rft.au=Boyle%2C+J+S&rft.aulast=Boyle&rft.aufirst=J&rft.date=1998-05-01&rft.volume=11&rft.issue=5&rft.spage=1041&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&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 - Principal component analysis; Rainfall; Climates; Model studies; Precipitation; Atmosphere ER - TY - JOUR T1 - Initial uptake kinetics in human skin exposed to dilute aqueous trichloroethylene in vitro. AN - 79836461; 9577754 AB - In vitro uptake of 14C-labeled trichloroethylene (TCE) from dilute (approximately 5-ppb) aqueous solutions into human surgical skin was measured using accelerator mass spectrometry (AMS). We analyzed 105 breast-tissue samples obtained from three subjects, representing 27 separate exposure experiments conducted at approximately 20 degrees C for 0, 1, 5, 15, 30, or 60 min. The AMS data obtained positively correlate with (p approximately 0) and vary significantly nonlinearly with (p = 0.0094) exposure duration. These data are inconsistent (p approximately 0) with predictions made for TCE by a proposed U.S. Environmental Protection Agency (USEPA) dermal-exposure model, even when uncertainties in its recommended parameter values for TCE are considered, but are consistent (p = 0.17) with a 1-compartment model for exposed skin-surface tissue governed in vitro by a maximum effective permeability of K*p = 0.28 cm h-1 (+/- 7.0%) and a first-order rate constant of k1 = 1.2 h-1 (+/- 16%). The apparent compartment depth is estimated to be approximately 40-100 microns, i.e., to comprise much or all of the epidermis. In contrast, the USEPA model implies only negligible TCE penetration beyond SC during a 1-h exposure. The K*p estimate based on the 1-compartment model fit is consistent with estimates for TCE based on in vivo studies, which supports the hypothesis that the USEPA model underpredicts short-term dermal uptake of TCE from water. It is shown that for humans, this fit also implies that normalized total uptake of TCE from water by short-term dermal contact in vivo is predicted to be fK*p, where f is approximately 80% for longer normothermic exposures and approximately 95% during a brief hot shower or bath. This study illustrates the power of AMS to facilitate analyses of contaminant biodistribution and uptake kinetics at very low environmental concentrations. JF - Journal of exposure analysis and environmental epidemiology AU - Bogen, K T AU - Keating, G A AU - Meissner, S AU - Vogel, J S AD - Health and Ecological Assessment Division, Lawrence Livermore National Laboratory, University of California, Livermore 94550-9900, USA. PY - 1998 SP - 253 EP - 271 VL - 8 IS - 2 SN - 1053-4245, 1053-4245 KW - Solvents KW - 0 KW - Trichloroethylene KW - 290YE8AR51 KW - Index Medicus KW - Culture Techniques KW - Kinetics KW - Humans KW - Environmental Exposure -- analysis KW - Breast KW - Forecasting KW - Tissue Distribution KW - Female KW - Trichloroethylene -- pharmacokinetics KW - Solvents -- pharmacokinetics KW - Trichloroethylene -- adverse effects KW - Skin -- metabolism KW - Solvents -- adverse effects KW - Models, Statistical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79836461?accountid=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+exposure+analysis+and+environmental+epidemiology&rft.atitle=Initial+uptake+kinetics+in+human+skin+exposed+to+dilute+aqueous+trichloroethylene+in+vitro.&rft.au=Bogen%2C+K+T%3BKeating%2C+G+A%3BMeissner%2C+S%3BVogel%2C+J+S&rft.aulast=Bogen&rft.aufirst=K&rft.date=1998-04-01&rft.volume=8&rft.issue=2&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Journal+of+exposure+analysis+and+environmental+epidemiology&rft.issn=10534245&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-07-01 N1 - Date created - 1998-07-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Metamorphic CO (sub 2) degassing from orogenic belts AN - 52601769; 1998-040082 AB - Kerrick and Caldeira (1993, 1994a) concluded that metamorphic CO (sub 2) degassing in collisional orogens, and especially the Himalayan orogenic belt, could have been an important factor in enhancing paleoatmospheric CO (sub 2) levels and contributing to early Cenozoic global greenhouse warming [Kerrick, D. M., Caldeira, K., 1993. Paleoatmospheric consequences of CO (sub 2) released during early Cenozoic regional metamorphism in the Tethyan orogen. In: Touret, J. L. R., Thompson, A. B. (Guest-Eds.), Fluid-Rock Interaction in the Deeper Continental Lithosphere. Chem. Geol. 108, 201-230.] [Kerrick, D. M., Caldeira, K., 1994a. Metamorphic CO (sub 2) degassing and early Cenozoic paleoclimate. GSA (Geol. Soc. Am.) Today 4, 57-65.]. However, our revised CO (sub 2) mass loss computations for regional metamorphism in the Himalaya-Karakoram belt incorporating recent geochronologic data and revised estimates of the proportion of carbonate source rocks indicate that metamorphic CO (sub 2) degassing from this orogen cannot explain Early Eocene warmth. Widespread pluton-induced hydrothermal flow occurred during the Eocene in the Cordilleran belt of western North America. Synmetamorphic intrusions, which are common in metamorphic belts, may cause significant regional fluid flow. To obtain a representative CO (sub 2) flux from such environments, we computed a CO (sub 2) flux of 1.5X10 (super 12) mol km (super -2) Ma (super -1) from petrologic and geochemical studies of the Paleozoic plutonic-metamorphic belt in New England (northeastern United States). For the 2X10 (super 6) km (super 2) area of Eocene metamorphism in the North American Cordillera, the CO (sub 2) fluxes derived from the New England metamorphic belt yield an area-integrated flux of approximately 3X10 (super 18) mol Ma (super -1) . If a significant fraction of this CO (sub 2) entered the atmosphere, this degassing flux would alone account for Eocene greenhouse global warming. For the Ominica belt within the Cordilleran orogen, a volumetric estimate of the mass of carbonate veins indicates that the consumption of CO (sub 2) by precipitation of carbonate veins may not significantly decrease the amount of CO (sub 2) in fluids that convect to near-surface crustal levels. Compared to other Eocene metamorphic belts, the widespread hydrothermal activity in the North American Cordillera may have been the largest, and most climatically significant, source of metamorphic CO (sub 2) to the Eocene atmosphere. CO (sub 2) degassing by active metamorphism is most significant in extensional regimes of high heat flow. Extensional tectonism and hydrothermal activity in metamorphic belts may have substantially contributed to atmospheric CO (sub 2) content throughout the Phanerozoic. Examples include the Mesozoic circum-Pacific metamorphic belt, and Oligocene-Miocene regional metamorphism in the Himalayan orogen. JF - Chemical Geology AU - Kerrick, Derrill M AU - Caldeira, Ken A2 - Albarede, Francis A2 - Blichert-Toft, Janne A2 - Staudigel, Hubert A2 - White, William M. Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 213 EP - 232 PB - Elsevier, Amsterdam VL - 145 IS - 3-4 SN - 0009-2541, 0009-2541 KW - North America KW - plate collision KW - Himalayan Orogeny KW - Eocene KW - paleoatmosphere KW - global change KW - Paleogene KW - orogenic belts KW - metamorphism KW - carbon dioxide KW - Cenozoic KW - Tertiary KW - plate tectonics KW - magmas KW - tectonics KW - Ominica Belt KW - North American Cordillera KW - global warming KW - degassing KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52601769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Metamorphic+CO+%28sub+2%29+degassing+from+orogenic+belts&rft.au=Kerrick%2C+Derrill+M%3BCaldeira%2C+Ken&rft.aulast=Kerrick&rft.aufirst=Derrill&rft.date=1998-04-01&rft.volume=145&rft.issue=3-4&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2FS0009-2541%2897%2900144-7 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 99 N1 - Document feature - geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - carbon dioxide; Cenozoic; degassing; Eocene; global change; global warming; Himalayan Orogeny; magmas; metamorphism; North America; North American Cordillera; Ominica Belt; orogenic belts; paleoatmosphere; Paleogene; plate collision; plate tectonics; tectonics; Tertiary DO - http://dx.doi.org/10.1016/S0009-2541(97)00144-7 ER - TY - JOUR T1 - Geochemical Earth Reference Model (GERM); description of the initiative AN - 52600651; 1998-040079 AB - The Geochemical Earth Reference Model (GERM) initiative is a grass-root effort with the goals of establishing a community consensus on a chemical characterization of the Earth, its major reservoirs, and the fluxes between them. The GERM initiative will provide a review of available scientific constraints for: (1) the composition of all major chemical reservoirs of the present-day Earth, from core to atmosphere; (2) present-day fluxes between reservoirs; (3) the Earth's chemical and isotopic evolution since accretion; and (4) the chemical and isotopic evolution of seawater as a record of global tectonics and climate. Even though most of the constraints for the GERM will be drawn from chemical data sets, some data will have to come from other disciplines, such as geophysics, nuclear physics, and cosmochemistry. GERM also includes a diverse chemical and physical data base and computer codes that are useful for our understanding of how the Earth works as a dynamic chemical and physical system. The GERM initiative is developed in an open community discussion on the World Wide Web (http://www-ep.es.llnl.gov/germ/germ-home.html) that is moderated by editors with responsibilities for different reservoirs, fluxes, data bases, and other scientific or technical aspects. These editors have agreed to lay out an initial, strawman GERM for their respective sections and to moderate community discussions leading to a first, preliminary consensus. The development of the GERM began with an initial workshop in Lyon, France in March, 1996. Since then, the GERM has continued to be developed on the Internet, punctuated by workshops and special sessions at professional meetings. A second GERM workshop will be held in La Jolla, CA USA on March 10-13, 1998. Abstract Copyright (1998) Elsevier, B.V. JF - Chemical Geology AU - Staudigel, Hubert AU - Albarede, Francis AU - Blichert-Toft, Janne AU - Edmond, John AU - McDonough, Bill AU - Jacobsen, Stein B AU - Keeling, Ralph AU - Langmuir, Charles H AU - Nielsen, Roger L AU - Plank, Terry AU - Rudnick, Roberta AU - Shaw, Henry F AU - Shirey, Steven B AU - Veizer, Jan AU - White, William Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 153 EP - 159 PB - Elsevier, Amsterdam VL - 145 IS - 3-4 SN - 0009-2541, 0009-2541 KW - Earth KW - Geochemical Earth Reference Model KW - mantle KW - atmosphere KW - current research KW - World Wide Web KW - hydrosphere KW - models KW - GERM KW - core KW - geochemistry KW - crust KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52600651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Geochemical+Earth+Reference+Model+%28GERM%29%3B+description+of+the+initiative&rft.au=Staudigel%2C+Hubert%3BAlbarede%2C+Francis%3BBlichert-Toft%2C+Janne%3BEdmond%2C+John%3BMcDonough%2C+Bill%3BJacobsen%2C+Stein+B%3BKeeling%2C+Ralph%3BLangmuir%2C+Charles+H%3BNielsen%2C+Roger+L%3BPlank%2C+Terry%3BRudnick%2C+Roberta%3BShaw%2C+Henry+F%3BShirey%2C+Steven+B%3BVeizer%2C+Jan%3BWhite%2C+William&rft.aulast=Staudigel&rft.aufirst=Hubert&rft.date=1998-04-01&rft.volume=145&rft.issue=3-4&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00092541 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 - 1998-01-01 N1 - Number of references - 18 N1 - Last updated - 2014-09-18 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - atmosphere; core; crust; current research; Earth; Geochemical Earth Reference Model; geochemistry; GERM; hydrosphere; mantle; models; World Wide Web ER - TY - JOUR T1 - Amorphous silica precipitation (60 to 120 degrees C); comparison of laboratory and field rates AN - 52597166; 1998-041015 AB - Amorphous silica precipitation behavior was investigated in simple laboratory experiments and more complex field experiments in the Wairakei, New Zealand, geothermal area. Both the laboratory and field precipitation rates are dependent on reaction affinity for SiO (sub 2(AmSi)) +2H (sub 2) O = H (sub 4) SiO (sub 4) (AB1). In simple laboratory solutions supersaturated with respect to amorphous silica by a factor less than 1.3 and in the absence of chemical impurities, precipitation rates have a first-order dependence on f(delta G (sub r) ) Rate (sub ppt) ([Si] m (super -2) s (super -1) ) = k (sub ppt) exp (E (sub a) /RT) (1-exp delta G (sub r) /RT) (AB2) where k (sub ppt) = 10 (super -1.9) [Si] m (super -2) s (super -1) and E (sub a) = 61+ or -1 kJ mol (super -1) . In more supersaturated and chemically complex field solutions, amorphous silica precipitation rates have a nonlinear dependence on f(delta G (sub r) ) and may be described by Rate (sub ppt) ([Si] m (super -2) s (super -1) ) = 10 (super -10.00+ or -0.06) (exp delta G (sub r) /RT) (super 4.4+ or -0.3) (AB3) or Rate (sub ppt) ([Si] m (super -2) s (super -1) ) = 10 (super -9.29+ or -0.03) (delta G (sub r) /RT) (super 1.7+ or -0.1) (AB4). The changes in reaction order, form of f(delta G (sub r) , and chemical impurities suggest that the dominant amorphous silica precipitation mechanism changes from elementary reaction control in the simple laboratory experiments to surface defect surface nucleation control in the complex field experiments. JF - Geochimica et Cosmochimica Acta AU - Carroll, Susan AU - Mroczek, Edward K AU - Alai, Maureen AU - Ebert, Margaret Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 1379 EP - 1396 PB - Pergamon, Oxford VL - 62 IS - 8 SN - 0016-7037, 0016-7037 KW - experimental studies KW - Australasia KW - amorphous materials KW - rates KW - hydrochemistry KW - North Island KW - thermal waters KW - temperature KW - hydrothermal conditions KW - Wairakei KW - laboratory studies KW - geothermal fields KW - chemical reactions KW - silica KW - precipitation KW - geochemistry KW - SEM data KW - New Zealand KW - field studies KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52597166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Amorphous+silica+precipitation+%2860+to+120+degrees+C%29%3B+comparison+of+laboratory+and+field+rates&rft.au=Carroll%2C+Susan%3BMroczek%2C+Edward+K%3BAlai%2C+Maureen%3BEbert%2C+Margaret&rft.aulast=Carroll&rft.aufirst=Susan&rft.date=1998-04-01&rft.volume=62&rft.issue=8&rft.spage=1379&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900052-0 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand N1 - Date revised - 1998-01-01 N1 - Number of references - 41 N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Includes 2 appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - amorphous materials; Australasia; chemical reactions; experimental studies; field studies; geochemistry; geothermal fields; hydrochemistry; hydrothermal conditions; laboratory studies; New Zealand; North Island; precipitation; rates; SEM data; silica; temperature; thermal waters; Wairakei DO - http://dx.doi.org/10.1016/S0016-7037(98)00052-0 ER - TY - JOUR T1 - Radiocarbon studies of organic compound classes in plankton and sediment of the northeastern Pacific Ocean AN - 52594669; 1998-041014 AB - Analyses are presented of samples of silty clay from an abyssal site in the NE Pacific, 220 km W of Point Conception, California, and of phytoplankton, zooplankton and sediment floc, for Delta (super 14) C, delta (super 13) C, measured in total hydrolysable amino acid (THAA), total carbohydrate (TCHO), total lipid and acid-insoluble organic fractions separated from the samples. THAA, TCHO and lipids account for 91-99% of the TOC in phytoplankton and zooplankton, 57% of TOC in sediment floc and 18-99% of the TOC in phytoplankton and zooplankton, 57% of TOC in sediment floc and 18-38% of TOC in the sediment. Calculated rate constants are THAA approximately TCHO > TOC approximately TN > lipid indicating their relative reactivities in the sediment during early diagenesis. Delta (super 14) C of organic fractions decreased from the surface plankton to ocean-floor sediment at 4100 m; lower Delta (super 14) C signatures occur in the lipid fraction than in THAA and TCHO fractions, and these differences are attributed to differential decomposition of organic material and sorption and/or biological incorporation of DOC into the sediment. JF - Geochimica et Cosmochimica Acta AU - Wang, Xu-Chen AU - Druffel, Ellen R M AU - Griffin, Sheila AU - Lee, Cindy AU - Kashgarian, Michaele Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 1365 EP - 1378 PB - Pergamon, Oxford VL - 62 IS - 8 SN - 0016-7037, 0016-7037 KW - sea water KW - Northeast Pacific KW - fatty acids KW - lipids KW - isotopes KW - suspended materials KW - plankton KW - stable isotopes KW - geochemical profiles KW - marine sediments KW - radioactive isotopes KW - chemical reactions KW - total organic carbon KW - insoluble residues KW - carbon KW - amino acids KW - sediments KW - carbohydrates KW - organic carbon KW - sedimentary structures KW - geochemistry KW - East Pacific KW - isotope ratios KW - biogenic structures KW - C-13/C-12 KW - C-14/C-12 KW - measurement KW - geochemical cycle KW - organic compounds KW - organic acids KW - North Pacific KW - diagenesis KW - Pacific Ocean KW - carbon cycle KW - bioturbation KW - 02D:Isotope geochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52594669?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Radiocarbon+studies+of+organic+compound+classes+in+plankton+and+sediment+of+the+northeastern+Pacific+Ocean&rft.au=Wang%2C+Xu-Chen%3BDruffel%2C+Ellen+R+M%3BGriffin%2C+Sheila%3BLee%2C+Cindy%3BKashgarian%2C+Michaele&rft.aulast=Wang&rft.aufirst=Xu-Chen&rft.date=1998-04-01&rft.volume=62&rft.issue=8&rft.spage=1365&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900074-X L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 80 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - amino acids; biogenic structures; bioturbation; C-13/C-12; C-14/C-12; carbohydrates; carbon; carbon cycle; chemical reactions; diagenesis; East Pacific; fatty acids; geochemical cycle; geochemical profiles; geochemistry; insoluble residues; isotope ratios; isotopes; lipids; marine sediments; measurement; North Pacific; Northeast Pacific; organic acids; organic carbon; organic compounds; Pacific Ocean; plankton; radioactive isotopes; sea water; sedimentary structures; sediments; stable isotopes; suspended materials; total organic carbon DO - http://dx.doi.org/10.1016/S0016-7037(98)00074-X ER - TY - JOUR T1 - Diamond capsules and diamond aggregates; polishing the high pressure silicates in-between with colloidal silica AN - 52452151; 1999-056368 JF - Eos, Transactions, American Geophysical Union AU - Minarik, W G AU - Fei, Y AU - Ryerson, F J AU - Farber, D L AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 379 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - colloidal materials KW - pressure KW - native elements KW - high pressure KW - graphite KW - sample preparation KW - silica KW - diamond KW - polycrystalline materials KW - pH KW - instruments KW - P-T conditions KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52452151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Diamond+capsules+and+diamond+aggregates%3B+polishing+the+high+pressure+silicates+in-between+with+colloidal+silica&rft.au=Minarik%2C+W+G%3BFei%2C+Y%3BRyerson%2C+F+J%3BFarber%2C+D+L%3BAnonymous&rft.aulast=Minarik&rft.aufirst=W&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=379&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - colloidal materials; diamond; graphite; high pressure; instruments; native elements; P-T conditions; pH; polycrystalline materials; pressure; sample preparation; silica; silicates ER - TY - JOUR T1 - Why most "dry" rocks should cool "wet" AN - 52451210; 1999-056295 JF - Eos, Transactions, American Geophysical Union AU - Kohn, M J AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 369 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - water KW - diffusion KW - oxygen KW - metamorphism KW - hydration KW - metamorphic rocks KW - amphibolite facies KW - cooling KW - greenschist facies KW - mineral assemblages KW - geochemistry KW - P-T conditions KW - facies KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52451210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Why+most+%22dry%22+rocks+should+cool+%22wet%22&rft.au=Kohn%2C+M+J%3BAnonymous&rft.aulast=Kohn&rft.aufirst=M&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - amphibolite facies; cooling; diffusion; facies; geochemistry; greenschist facies; hydration; metamorphic rocks; metamorphism; mineral assemblages; oxygen; P-T conditions; water ER - TY - JOUR T1 - P-T paths from anatectic pelites AN - 52450792; 1999-056376 JF - Eos, Transactions, American Geophysical Union AU - Spear, F S AU - Kohn, M J AU - Cheney, John T AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 380 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - water KW - United States KW - silicates KW - textures KW - muscovite KW - anatexis KW - partial melting KW - porosity KW - chemical reactions KW - phase equilibria KW - P-T-t paths KW - mica group KW - migmatites KW - metamorphic rocks KW - biotite KW - New England KW - metasedimentary rocks KW - sheet silicates KW - pelitic texture KW - mineral assemblages KW - dehydration KW - geochemistry KW - P-T conditions KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52450792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=P-T+paths+from+anatectic+pelites&rft.au=Spear%2C+F+S%3BKohn%2C+M+J%3BCheney%2C+John+T%3BAnonymous&rft.aulast=Spear&rft.aufirst=F&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=380&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anatexis; biotite; chemical reactions; dehydration; geochemistry; metamorphic rocks; metasedimentary rocks; mica group; migmatites; mineral assemblages; muscovite; New England; P-T conditions; P-T-t paths; partial melting; pelitic texture; phase equilibria; porosity; sheet silicates; silicates; textures; United States; water ER - TY - JOUR T1 - Calibration of garnet+ and clinopyroxene+liquid saturation surfaces, and some preliminary applications to komatiite petrogenesis AN - 52450496; 1999-056358 JF - Eos, Transactions, American Geophysical Union AU - Putirka, Keith AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 378 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - segregation KW - volcanic rocks KW - igneous rocks KW - garnet group KW - komatiite KW - calibration KW - ultramafic composition KW - pyrope KW - laboratory studies KW - pyroxene group KW - clinopyroxene KW - inclusions KW - orthosilicates KW - xenoliths KW - P-T conditions KW - chain silicates KW - liquid phase KW - experimental studies KW - pressure KW - mineral-water interface KW - high pressure KW - solid phase KW - nesosilicates KW - grossular KW - saturation KW - lava KW - magmas KW - 17A:General geophysics KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52450496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Calibration+of+garnet%2B+and+clinopyroxene%2Bliquid+saturation+surfaces%2C+and+some+preliminary+applications+to+komatiite+petrogenesis&rft.au=Putirka%2C+Keith%3BAnonymous&rft.aulast=Putirka&rft.aufirst=Keith&rft.date=1998-04-01&rft.volume=79&rft.issue=17%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 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - calibration; chain silicates; clinopyroxene; experimental studies; garnet group; grossular; high pressure; igneous rocks; inclusions; komatiite; laboratory studies; lava; liquid phase; magmas; mineral-water interface; nesosilicates; orthosilicates; P-T conditions; pressure; pyrope; pyroxene group; saturation; segregation; silicates; solid phase; ultramafic composition; volcanic rocks; xenoliths ER - TY - JOUR T1 - Electrical conductivity of partial melts at low melt fractions; effects of melt composition AN - 52417647; 2000-003398 JF - Eos, Transactions, American Geophysical Union AU - Tyburczy, J A AU - Roberts, J J AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 232 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - experimental studies KW - electrical conductivity KW - volcanic rocks KW - igneous rocks KW - partial melting KW - olivine group KW - melts KW - temperature KW - nesosilicates KW - laboratory studies KW - theoretical studies KW - olivine basalt KW - olivine KW - basalts KW - orthosilicates KW - composition KW - permeability KW - 17A:General geophysics KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52417647?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+partial+melts+at+low+melt+fractions%3B+effects+of+melt+composition&rft.au=Tyburczy%2C+J+A%3BRoberts%2C+J+J%3BAnonymous&rft.aulast=Tyburczy&rft.aufirst=J&rft.date=1998-04-01&rft.volume=79&rft.issue=17%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 spring 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 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - basalts; composition; electrical conductivity; experimental studies; igneous rocks; laboratory studies; melts; nesosilicates; olivine; olivine basalt; olivine group; orthosilicates; partial melting; permeability; silicates; temperature; theoretical studies; volcanic rocks ER - TY - JOUR T1 - Three-dimensional simulations of the 1989 Loma Prieta, California, earthquake and comparisons with local strong motion records AN - 52415163; 2000-003359 JF - Eos, Transactions, American Geophysical Union AU - Antolik, M AU - Freger, D S AU - Stidham, C AU - Romanowicz, Barbara AU - Larsen, S AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 226 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - velocity analysis KW - United States KW - tomography KW - Sacramento-San Joaquin Delta KW - sedimentary basins KW - finite difference analysis KW - data processing KW - elastic waves KW - waveforms KW - strike-slip faults KW - California KW - San Francisco Bay KW - digital simulation KW - sediments KW - basins KW - active faults KW - Loma Prieta earthquake 1989 KW - faults KW - San Pablo Bay KW - Santa Clara Valley KW - focal mechanism KW - three-dimensional models KW - clastic sediments KW - statistical analysis KW - strong motion KW - San Francisco Bay region KW - ground motion KW - alluvium KW - seismic waves KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52415163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+simulations+of+the+1989+Loma+Prieta%2C+California%2C+earthquake+and+comparisons+with+local+strong+motion+records&rft.au=Antolik%2C+M%3BFreger%2C+D+S%3BStidham%2C+C%3BRomanowicz%2C+Barbara%3BLarsen%2C+S%3BAnonymous&rft.aulast=Antolik&rft.aufirst=M&rft.date=1998-04-01&rft.volume=43&rft.issue=3&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Psychiatry+in+Medicine&rft.issn=00912174&rft_id=info:doi/10.2190%2FPM.43.3.b LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring 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 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - active faults; alluvium; basins; California; clastic sediments; data processing; digital simulation; earthquakes; elastic waves; faults; finite difference analysis; focal mechanism; ground motion; Loma Prieta earthquake 1989; Sacramento-San Joaquin Delta; San Francisco Bay; San Francisco Bay region; San Pablo Bay; Santa Clara Valley; sedimentary basins; sediments; seismic waves; statistical analysis; strike-slip faults; strong motion; three-dimensional models; tomography; United States; velocity analysis; waveforms ER - TY - JOUR T1 - Rock-water interactions controlling zinc, cadmium, and lead concentrations in surface waters and sediments, U.S. Tri-State mining district; 1, Molecular identification using X-ray absorption spectroscopy AN - 52330418; 2000-052246 JF - Environmental Science & Technology, ES & T AU - O'Day, Peggy A AU - Carroll, Susan A AU - Waychunas, Glenn A Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 943 EP - 955 PB - American Chemical Society, Washington, DC VL - 32 IS - 7 SN - 0013-936X, 0013-936X KW - United States KW - zinc KW - Missouri KW - rivers and streams KW - lead KW - mineral composition KW - water-rock interaction KW - Tri-State mining district KW - sediments KW - cadmium KW - spectra KW - trace elements KW - discharge KW - chemical composition KW - mines KW - concentration KW - monitoring KW - surface water KW - sphalerite KW - prediction KW - pollution KW - atomic absorption spectra KW - X-ray spectra KW - molecular structure KW - Oklahoma KW - galena KW - Kansas KW - metals KW - sulfides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52330418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Rock-water+interactions+controlling+zinc%2C+cadmium%2C+and+lead+concentrations+in+surface+waters+and+sediments%2C+U.S.+Tri-State+mining+district%3B+1%2C+Molecular+identification+using+X-ray+absorption+spectroscopy&rft.au=O%27Day%2C+Peggy+A%3BCarroll%2C+Susan+A%3BWaychunas%2C+Glenn+A&rft.aulast=O%27Day&rft.aufirst=Peggy&rft.date=1998-04-01&rft.volume=32&rft.issue=7&rft.spage=943&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 - 48 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - atomic absorption spectra; cadmium; chemical composition; concentration; discharge; galena; Kansas; lead; metals; mineral composition; mines; Missouri; molecular structure; monitoring; Oklahoma; pollution; prediction; rivers and streams; sediments; spectra; sphalerite; sulfides; surface water; trace elements; Tri-State mining district; United States; water-rock interaction; X-ray spectra; zinc ER - TY - JOUR T1 - Selenium diffusion and reduction at the water-sediment boundary; micro-XANES spectroscopy of reactive transport AN - 52330125; 2000-052256 JF - Environmental Science & Technology, ES & T AU - Tokunaga, Tetsu K AU - Sutton, Stephen R AU - Bajt, Sasa AU - Nuessle, Patterson AU - Shea-McCarthy, Grace Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 1092 EP - 1098 PB - American Chemical Society, Washington, DC VL - 32 IS - 8 SN - 0013-936X, 0013-936X KW - soils KW - concentration KW - sediment-water interface KW - selenium KW - pollutants KW - surface water KW - pollution KW - solubility KW - X-ray spectra KW - boundary conditions KW - chemical reactions KW - transport KW - sediments KW - spectra KW - reduction KW - trace elements KW - spectroscopy KW - diffusivity KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52330125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Selenium+diffusion+and+reduction+at+the+water-sediment+boundary%3B+micro-XANES+spectroscopy+of+reactive+transport&rft.au=Tokunaga%2C+Tetsu+K%3BSutton%2C+Stephen+R%3BBajt%2C+Sasa%3BNuessle%2C+Patterson%3BShea-McCarthy%2C+Grace&rft.aulast=Tokunaga&rft.aufirst=Tetsu&rft.date=1998-04-01&rft.volume=32&rft.issue=8&rft.spage=1092&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 - 48 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - boundary conditions; chemical reactions; concentration; diffusivity; pollutants; pollution; reduction; sediment-water interface; sediments; selenium; soils; solubility; spectra; spectroscopy; surface water; trace elements; transport; X-ray spectra ER - TY - JOUR T1 - Rock-water interactions controlling zinc, cadmium and lead concentrations in surface waters and sediments, U.S. Tri-State mining district; 2, Geochemical interpretation AN - 52330090; 2000-052247 JF - Environmental Science & Technology, ES & T AU - Carroll, Susan A AU - O'Day, Peggy A AU - Piechowski, Mike Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 956 EP - 965 PB - American Chemical Society, Washington, DC VL - 32 IS - 7 SN - 0013-936X, 0013-936X KW - United States KW - zinc KW - Missouri KW - rivers and streams KW - lead KW - aqueous solutions KW - mineral composition KW - chemical reactions KW - water-rock interaction KW - Tri-State mining district KW - sediments KW - cadmium KW - oxides KW - spectra KW - trace elements KW - thermodynamic properties KW - discharge KW - chemical composition KW - kinetics KW - pH KW - mines KW - concentration KW - monitoring KW - pollutants KW - surface water KW - sphalerite KW - prediction KW - pollution KW - X-ray spectra KW - iron hydroxides KW - hydroxides KW - Oklahoma KW - galena KW - Kansas KW - dissolved materials KW - metals KW - trace metals KW - sulfides KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52330090?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Rock-water+interactions+controlling+zinc%2C+cadmium+and+lead+concentrations+in+surface+waters+and+sediments%2C+U.S.+Tri-State+mining+district%3B+2%2C+Geochemical+interpretation&rft.au=Carroll%2C+Susan+A%3BO%27Day%2C+Peggy+A%3BPiechowski%2C+Mike&rft.aulast=Carroll&rft.aufirst=Susan&rft.date=1998-04-01&rft.volume=32&rft.issue=7&rft.spage=956&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 - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aqueous solutions; cadmium; chemical composition; chemical reactions; concentration; discharge; dissolved materials; galena; hydroxides; iron hydroxides; Kansas; kinetics; lead; metals; mineral composition; mines; Missouri; monitoring; Oklahoma; oxides; pH; pollutants; pollution; prediction; rivers and streams; sediments; spectra; sphalerite; sulfides; surface water; thermodynamic properties; trace elements; trace metals; Tri-State mining district; United States; water-rock interaction; X-ray spectra; zinc ER - TY - JOUR T1 - Depth and mechanism estimation using waveform modeling AN - 52179607; 2001-071071 JF - Eos, Transactions, American Geophysical Union AU - Goldstein, Peter AU - Dodge, Doug AU - Larsen, Shawn AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 210 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - P-waves KW - body waves KW - focal mechanism KW - guided waves KW - statistical analysis KW - elastic waves KW - waveforms KW - seismic sources KW - teleseismic signals KW - depth KW - models KW - surface waves KW - ground truth KW - probability KW - tectonics KW - seismic waves KW - algorithms KW - earthquakes KW - accuracy KW - uncertainty KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52179607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Depth+and+mechanism+estimation+using+waveform+modeling&rft.au=Goldstein%2C+Peter%3BDodge%2C+Doug%3BLarsen%2C+Shawn%3BAnonymous&rft.aulast=Goldstein&rft.aufirst=Peter&rft.date=1998-04-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - accuracy; algorithms; amplitude; body waves; depth; earthquakes; elastic waves; focal mechanism; ground truth; guided waves; models; P-waves; probability; seismic sources; seismic waves; statistical analysis; surface waves; tectonics; teleseismic signals; uncertainty; waveforms ER - TY - JOUR T1 - On the paleoenvironment of the central part of the Sea of Okhotsk during the past Holocene glaciation AN - 51322478; 1999-029214 AB - Sediments referring to the last glaciation, deglaciation, and Holocene times were identified in core V34-90 in the Sea of Okhotsk from the species composition of planktonic foraminifers, isotopic oxygen composition, nutrient content, and radiocarbon dating of the deposits. The most significant changes in the condition of the surface water occurred about 12.5 and 9 ka BP during deglaciation. They were caused by warming and, probably, by water freshening, and they resulted in growth of productivity. JF - Oceanology AU - Gorbarenko, S A AU - Chekhovskaya, M P AU - Southon, J R Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 277 EP - 280 PB - MAIK Nauka/Interperiodica, Birmingham, AL VL - 38 IS - 2 SN - 0001-4370, 0001-4370 KW - oxygen KW - glaciation KW - isotopes KW - sea ice KW - biogeography KW - Holocene KW - stable isotopes KW - deglaciation KW - cores KW - climate change KW - West Pacific KW - temperature KW - paleoecology KW - Okhotsk Sea KW - Globigerinacea KW - upper Pleistocene KW - Foraminifera KW - Cenozoic KW - Neogloboquadrina KW - marine sediments KW - Akademiy Nauk Rise KW - ice KW - Globigerina KW - carbon KW - Globigerinidae KW - sediments KW - Invertebrata KW - calcium carbonate KW - depositional environment KW - organic carbon KW - Northwest Pacific KW - Protista KW - Quaternary KW - isotope ratios KW - Rotaliina KW - planktonic taxa KW - O-18/O-16 KW - Neogloboquadrina pachyderma KW - paleoenvironment KW - North Pacific KW - Pacific Ocean KW - central Okhotsk Sea KW - Pleistocene KW - Globigerina bulloides KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51322478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oceanology&rft.atitle=On+the+paleoenvironment+of+the+central+part+of+the+Sea+of+Okhotsk+during+the+past+Holocene+glaciation&rft.au=Gorbarenko%2C+S+A%3BChekhovskaya%2C+M+P%3BSouthon%2C+J+R&rft.aulast=Gorbarenko&rft.aufirst=S&rft.date=1998-04-01&rft.volume=38&rft.issue=2&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Oceanology&rft.issn=00014370&rft_id=info:doi/ L2 - http://www.maik.rssi.ru/cgi-bin/journal.pl?name=ocean&page=main LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 11 N1 - PubXState - AL N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ONLGAE N1 - SubjectsTermNotLitGenreText - Akademiy Nauk Rise; biogeography; calcium carbonate; carbon; Cenozoic; central Okhotsk Sea; climate change; cores; deglaciation; depositional environment; Foraminifera; glacial geology; glaciation; Globigerina; Globigerina bulloides; Globigerinacea; Globigerinidae; Holocene; ice; Invertebrata; isotope ratios; isotopes; marine sediments; Neogloboquadrina; Neogloboquadrina pachyderma; North Pacific; Northwest Pacific; O-18/O-16; Okhotsk Sea; organic carbon; oxygen; Pacific Ocean; paleoecology; paleoenvironment; planktonic taxa; Pleistocene; Protista; Quaternary; Rotaliina; sea ice; sediments; stable isotopes; temperature; upper Pleistocene; West Pacific ER - TY - JOUR T1 - Repeating earthquakes and the long-term evolution of seismicity on the San Andreas Fault near Bear Valley, California AN - 51034738; 1998-052230 JF - Seismological Research Letters AU - Ellsworth, W I AU - Cole, A T AU - Dietz, L D AU - Dodge, D A AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 144 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - Bear Valley KW - spatial data KW - Central California KW - magnitude KW - foreshocks KW - history KW - California KW - aftershocks KW - seismicity KW - San Andreas Fault KW - temporal distribution KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51034738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Repeating+earthquakes+and+the+long-term+evolution+of+seismicity+on+the+San+Andreas+Fault+near+Bear+Valley%2C+California&rft.au=Ellsworth%2C+W+I%3BCole%2C+A+T%3BDietz%2C+L+D%3BDodge%2C+D+A%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Ellsworth&rft.aufirst=W&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=144&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - aftershocks; Bear Valley; California; Central California; earthquakes; foreshocks; history; magnitude; San Andreas Fault; seismicity; spatial data; temporal distribution; United States ER - TY - JOUR T1 - Recent developments in SAC2000 AN - 51034569; 1998-052272 JF - Seismological Research Letters AU - Dodge, Doug AU - Firpo, Mike AU - Goldstein, Peter AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 157 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - Seismic Analysis Code KW - data processing KW - elastic waves KW - Alameda County California KW - computer programs KW - California KW - Lawrence Livermore National Laboratory KW - traveltime KW - data bases KW - applications KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51034569?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Recent+developments+in+SAC2000&rft.au=Dodge%2C+Doug%3BFirpo%2C+Mike%3BGoldstein%2C+Peter%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Dodge&rft.aufirst=Doug&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - Alameda County California; applications; California; computer programs; data bases; data processing; earthquakes; elastic waves; Lawrence Livermore National Laboratory; Seismic Analysis Code; traveltime; United States ER - TY - JOUR T1 - Characteristics of seismic signals from the collapse of underground cavities AN - 51034343; 1998-052265 JF - Seismological Research Letters AU - Walter, William R AU - Mayeda, Kevin M AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 155 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - body waves KW - collapse structures KW - explosions KW - magnitude KW - elastic waves KW - seismic sources KW - Nevada Test Site KW - underground cavities KW - seismic waves KW - earthquakes KW - Nevada KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51034343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Brain+%26+Development&rft.atitle=Tourette+syndrome+and+obsessive-compulsive+disorder&rft.au=Lombroso%2C+Paul+J.%3BScahill%2C+Lawrence&rft.aulast=Lombroso&rft.aufirst=Paul&rft.date=2008-04-01&rft.volume=30&rft.issue=4&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Brain+%26+Development&rft.issn=03877604&rft_id=info:doi/10.1016%2Fj.braindev.2007.09.001 LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - body waves; collapse structures; earthquakes; elastic waves; explosions; magnitude; Nevada; Nevada Test Site; seismic sources; seismic waves; underground cavities; United States ER - TY - JOUR T1 - Testing the DOE model for improving seismic event location using kriged traveltime corrections AN - 51031987; 1998-052270 JF - Seismological Research Letters AU - Young, Christopher J AU - Hipp, James R AU - Shepherd, E AU - Moore, S G AU - Schultz, Craig A AU - Myers, Stephen C AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 156 EP - 157 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - models KW - U. S. Department of Energy KW - detection KW - traveltime KW - statistical analysis KW - kriging KW - government agencies KW - elastic waves KW - algorithms KW - seismic sources KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51031987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Testing+the+DOE+model+for+improving+seismic+event+location+using+kriged+traveltime+corrections&rft.au=Young%2C+Christopher+J%3BHipp%2C+James+R%3BShepherd%2C+E%3BMoore%2C+S+G%3BSchultz%2C+Craig+A%3BMyers%2C+Stephen+C%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Young&rft.aufirst=Christopher&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - algorithms; detection; earthquakes; elastic waves; government agencies; kriging; models; seismic sources; statistical analysis; traveltime; U. S. Department of Energy ER - TY - JOUR T1 - Representing short-period regional P/S discriminants for CTBT monitoring in the Middle East AN - 51031969; 1998-052266 JF - Seismological Research Letters AU - Rodgers, A AU - Walter, W AU - Lay, T AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 156 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - P-waves KW - body waves KW - monitoring KW - elastic waves KW - seismic sources KW - seismicity KW - seismic waves KW - Asia KW - earthquakes KW - S-waves KW - Middle East KW - Comprehensive Test Ban Treaty KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51031969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Representing+short-period+regional+P%2FS+discriminants+for+CTBT+monitoring+in+the+Middle+East&rft.au=Rodgers%2C+A%3BWalter%2C+W%3BLay%2C+T%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Rodgers&rft.aufirst=A&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - amplitude; Asia; body waves; Comprehensive Test Ban Treaty; earthquakes; elastic waves; Middle East; monitoring; P-waves; S-waves; seismic sources; seismic waves; seismicity ER - TY - JOUR T1 - Nonstationary Bayesian kriging; application of spatial travel-time corrections to improve seismic location AN - 51031469; 1998-052269 JF - Seismological Research Letters AU - Schultz, Craig A AU - Myers, Stephen C AU - Ruppert, Stanley D AU - Hipp, James R AU - Young, Christopher J AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 156 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - detection KW - spatial data KW - Bayesian analysis KW - traveltime KW - statistical analysis KW - kriging KW - elastic waves KW - applications KW - seismic sources KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51031469?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Nonstationary+Bayesian+kriging%3B+application+of+spatial+travel-time+corrections+to+improve+seismic+location&rft.au=Schultz%2C+Craig+A%3BMyers%2C+Stephen+C%3BRuppert%2C+Stanley+D%3BHipp%2C+James+R%3BYoung%2C+Christopher+J%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Schultz&rft.aufirst=Craig&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - applications; Bayesian analysis; detection; earthquakes; elastic waves; kriging; seismic sources; spatial data; statistical analysis; traveltime ER - TY - JOUR T1 - Regional recordings of the 1997 Kazakhstan depth of burial experiment AN - 51029430; 1998-052364 JF - Seismological Research Letters AU - Myers, Stephen C AU - Walter, William AU - Mayeda, Kevin M AU - Glenn, Lewis AU - Shedlock, Kaye M AU - Sheehan, Anne F Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 177 PB - Seismological Society of America, Eastern Section, [Berkeley, CA] VL - 69 IS - 2 SN - 0895-0695, 0895-0695 KW - P-waves KW - body waves KW - explosions KW - chemical explosions KW - elastic waves KW - Balapan Kazakhstan KW - seismic sources KW - Central Asia KW - Commonwealth of Independent States KW - seismicity KW - Kazakhstan KW - seismic waves KW - Asia KW - S-waves KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51029430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Regional+recordings+of+the+1997+Kazakhstan+depth+of+burial+experiment&rft.au=Myers%2C+Stephen+C%3BWalter%2C+William%3BMayeda%2C+Kevin+M%3BGlenn%2C+Lewis%3BShedlock%2C+Kaye+M%3BSheehan%2C+Anne+F&rft.aulast=Myers&rft.aufirst=Stephen&rft.date=1998-04-01&rft.volume=69&rft.issue=2&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 93rd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - CA] N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - amplitude; Asia; Balapan Kazakhstan; body waves; Central Asia; chemical explosions; Commonwealth of Independent States; elastic waves; explosions; Kazakhstan; P-waves; S-waves; seismic sources; seismic waves; seismicity ER - TY - JOUR T1 - On the development of a new methodology for groundwater-driven health risk assessment AN - 50167312; 1998-033237 AB - A methodology and hypothetical case study are presented for incorporation of uncertainty and variability into calculations of human health risk appropriate for regional, or basin-scale, groundwater management problems. Uncertainty in well water concentration is introduced through complex contaminant migration patterns in the subsurface. Variability is considered in parameters related to individual behavior patterns and biological effects and to groundwater extraction and distribution networks. A joint uncertainty and variability (JUV) analysis is used to generate a two-dimensional distribution or risk surface that spans both transport uncertainty as well as individual variability. Cuts in this distributional surface (fractiles of variability and percentiles of uncertainty) are presented and discussed. Comparisons with alternative approaches based upon deterministic transport models are also made. In addition, important distinctions are made between the case where household water is derived from the nearest well and the case where household water is mixed from many wells in a distribution system. Copyright 1998 by the American Geophysical Union. JF - Water Resources Research AU - Maxwell, Reed M AU - Pelmulder, Susan D AU - Tompson, Andrew F B AU - Kastenberg, William E Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 833 EP - 847 PB - American Geophysical Union, Washington, DC VL - 34 IS - 4 SN - 0043-1397, 0043-1397 KW - solute transport KW - fertilizers KW - concentration KW - water supply KW - geologic hazards KW - pollutants KW - water management KW - pollution KW - simulation KW - new methods KW - two-dimensional models KW - human ecology KW - ground water KW - case studies KW - spatial distribution KW - safety KW - factors KW - risk assessment KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50167312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=On+the+development+of+a+new+methodology+for+groundwater-driven+health+risk+assessment&rft.au=Maxwell%2C+Reed+M%3BPelmulder%2C+Susan+D%3BTompson%2C+Andrew+F+B%3BKastenberg%2C+William+E&rft.aulast=Maxwell&rft.aufirst=Reed&rft.date=1998-04-01&rft.volume=34&rft.issue=4&rft.spage=833&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F97WR03605 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - case studies; concentration; factors; fertilizers; geologic hazards; ground water; human ecology; new methods; pollutants; pollution; risk assessment; safety; simulation; solute transport; spatial distribution; two-dimensional models; water management; water supply DO - http://dx.doi.org/10.1029/97WR03605 ER - TY - JOUR T1 - Lithospheric structure of the Qiantang Terrane, northern Tibetan Plateau, from complete regional waveform modeling; evidence for partial melt AN - 50165576; 1999-013355 AB - We report models of P and S wave velocity and attenuation for the the crust and uppermost mantle of the Qiangtang Terrane, northern Tibetan Plateau, inferred by fitting reflectivity synthetic seismograms to observed complete regional waveforms. The data are three-component broadband seismograms recorded by the 1991-1992 IRIS-PASSCAL (Incorporated Research Institutions for Seismology-Program for Array Seismic Studies of the Continental Lithosphere) Tibetan Plateau Experiment and Global Seismic Network stations in the region. The Qiangtang Terrane has thick crust (65 + or - 5 km) with P and S wave velocities of 6.1-6.3 and 3.34-3.43 km/s, respectively, yielding an anomalously high crustal Poisson's ratio of 0.29+ or -0.02. Seismic velocities of the upper mantle of the Qiangtang Terrane are normal for P waves and slow for S waves (8.10 and 4.35-4.41 km/s, respectively) with a high mantle Poisson's ratio of 0.29+ or -0.01. Attenuation in the crust and upper mantle is high (Q (sub P ) = 100-200 and Q (sub S ) = 44-89). Modeling of the broadband P waveforms suggests that a decrease in mantle velocity occurs at about 160 km depth in the mantle; however, this is not unambiguously supported by the data and modeling. The crust and uppermost mantle of the Qiangtang Terrane probably contains partial melt based on the high Poisson's ratio, low shear wave velocities, and low Q. The absence of high-frequency S (sub n) and the presence of volcanism of mantle lithospheric origin support the presence of partial melt. Crustal and uppermost mantle structure in the Qiangtang Terrane is different from that for the Lhasa Terrane (immediately to the south) based on results of our previous studies. The average crustal P and S wave velocities are 4% faster and 2% slower, respectively, in the Qiangtang Terrane relative to the Lhasa Terrane. This yields a significant difference in the crustal Poisson's ratio with values of 0.29 for the Qiangtang Terrane and 0.25 for the Lhasa Terrane. Differences in the uppermost mantle P and S wave velocities and Poisson's ratios of these two adjacent terranes cannot be explained by temperature differences alone. Using the mantle temperature estimates of McNamara et al.. [1997] we suggest that partial melt of an ultramafic composition beneath the Qiangtang Terrane fits the velocity and Poisson's ratio estimates. Copyright 1998 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Rodgers, Arthur J AU - Schwartz, Susan Y Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 7137 EP - 7152 PB - American Geophysical Union, Washington, DC VL - 103 IS - B4 SN - 0148-0227, 0148-0227 KW - P-waves KW - Poisson's ratio KW - Far East KW - igneous rocks KW - partial melting KW - mantle KW - elastic waves KW - waveforms KW - elastic constants KW - attenuation KW - plutonic rocks KW - Tibetan Plateau KW - velocity KW - Asia KW - China KW - seismograms KW - upper mantle KW - body waves KW - seismic profiles KW - lithosphere KW - ultramafics KW - Qiantang Terrane KW - models KW - velocity structure KW - geophysical profiles KW - seismic waves KW - S-waves KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50165576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lithospheric+structure+of+the+Qiantang+Terrane%2C+northern+Tibetan+Plateau%2C+from+complete+regional+waveform+modeling%3B+evidence+for+partial+melt&rft.au=Rodgers%2C+Arthur+J%3BSchwartz%2C+Susan+Y&rft.aulast=Rodgers&rft.aufirst=Arthur&rft.date=1998-04-01&rft.volume=103&rft.issue=B4&rft.spage=7137&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F97JB03535 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 - 64 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Asia; attenuation; body waves; China; crust; elastic constants; elastic waves; Far East; geophysical profiles; igneous rocks; lithosphere; mantle; models; P-waves; partial melting; plutonic rocks; Poisson's ratio; Qiantang Terrane; S-waves; seismic profiles; seismic waves; seismograms; Tibetan Plateau; ultramafics; upper mantle; velocity; velocity structure; waveforms DO - http://dx.doi.org/10.1029/97JB03535 ER - TY - JOUR T1 - Hydrogen production from wastes AN - 16547647; 4382591 AB - A process for the conversion of municipal solid waste, automobile shredder residue and other plastic/rubber wastes to hydrogen is described both from a technical and an economic point of view. Pilot-plant and modeling results are tools in the analysis. The conversion is carried out in two major process steps. The first or pre-treatment step is based on pyrolysis and results in an intermediate product containing approximately 90% of the primary feed in a suitable physical form for the second step. This second step is Texaco's high-temperature, high-pressure gasifier which is based on partial oxidation and converts the organic components to synthesis gas (CO and H sub(2)). Total thermal conversion efficiency for waste to hydrogen is found to be a strong function of feedstock quality. For typical MSW feedstocks, an efficiency of 40-50% is predicted for an integrated process. Fossil-fuel feedstocks such as waste plastics and scrap tires result in efficiencies of the order 60-70%. The cost of produced hydrogen is approximately $15/GJ for typical MSW with a tipping fee of $50/ton, but drops to $6/ton for high-plastics waste that carry a tipping fee of $100/ton. JF - Energy (Oxford) AU - Wallman, PH AU - Thorsness, C B AU - Winter, J D AD - Lawrence Livermore National Laboratory L-369Livermore, CA 94550, USA, hwallman@llnl.gov Y1 - 1998/04// PY - 1998 DA - Apr 1998 SP - 271 EP - 278 VL - 23 IS - 4 SN - 0360-5442, 0360-5442 KW - Pollution Abstracts KW - Materials recovery KW - Hydrogen KW - Recycling KW - Municipal solid wastes KW - Waste management KW - Pyrolysis KW - Economics KW - gasification KW - Technology KW - Rubber products KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16547647?accountid=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=Energy+%28Oxford%29&rft.atitle=Hydrogen+production+from+wastes&rft.au=Wallman%2C+PH%3BThorsness%2C+C+B%3BWinter%2C+J+D&rft.aulast=Wallman&rft.aufirst=PH&rft.date=1998-04-01&rft.volume=23&rft.issue=4&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&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 - Rubber products; Economics; Hydrogen; Municipal solid wastes; gasification; Recycling; Pyrolysis; Waste management; Technology; Materials recovery ER - TY - JOUR T1 - Radioactive sealed source accountability - A risk-based approach AN - 16540718; 4311972 AB - This paper provides a risk-based approach for establishing threshold accountability values for radioactive sealed sources based on current scientific information and realistic assumptions. Although this paper focuses specifically on accountability thresholds, the methodology provided can be easily modified to determine risk-based exemption and licensing thresholds. JF - Health Physics AU - Shingleton, K L AU - Lee, D W AD - Lawrence Livermore National Laboratory, P.O. Box 808, L-384, Livermore, CA 94551-9900, USA Y1 - 1998/04// PY - 1998 DA - Apr 1998 SP - 435 EP - 441 VL - 74 IS - 4 SN - 0017-9078, 0017-9078 KW - licensing KW - threshold limits KW - Risk Abstracts KW - Hazardous materials KW - Radioactive materials KW - R2 23020:Technological risks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16540718?accountid=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=Health+Physics&rft.atitle=Radioactive+sealed+source+accountability+-+A+risk-based+approach&rft.au=Shingleton%2C+K+L%3BLee%2C+D+W&rft.aulast=Arai&rft.aufirst=Makoto&rft.date=2011-10-01&rft.volume=65&rft.issue=6&rft.spage=606&rft.isbn=&rft.btitle=&rft.title=Psychiatry+and+Clinical+Neurosciences&rft.issn=13231316&rft_id=info:doi/10.1111%2Fj.1440-1819.2011.02261.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hazardous materials; Radioactive materials ER - TY - JOUR T1 - Sensitivity of simulated CFC-11 distributions in a global ocean model to the treatment of salt rejected during sea-ice formation AN - 16535344; 4324529 AB - We show that simulated oceanic absorption of an atmospheric gas is very sensitive to the representation of a process that occurs beneath sea ice. As sea ice forms, salt is rejected, locally increasing surface sea-water density. This dense water can sink to the pycnocline at the base of the mixed-layer. Previous studies have not considered the impact of this subgrid-scale process on transient tracers in the ocean. To assess the potential importance of this process to the oceanic absorption of atmospheric gases, we performed two idealized simulations: a Control simulation in which salt rejected during sea-ice formation is placed in the model's 25 m thick surface layer; and a Test simulation in which salt rejected during sea-ice formation is distributed uniformly through the upper 160 m beneath the forming sea ice. Our treatment of rejected salt is highly idealized, and is intended to demonstrate the need for a physically-based parameterization of subgrid-scale convection for use in ocean general circulation models that takes into account the subgrid-scale heterogeneity of surface buoyancy forcing. Distributing rejected salt more deeply during periods of ice formation helps to maintain vertical density gradients, inhibiting grid-scale convection, especially in the Southern Ocean. This greatly diminishes simulated ocean uptake of CFC-11, and generally improves simulated CFC-11 and salinity fields. The modeled global ocean inventory of CFC-11 for year 1990 is about 30% lower, and modeled column inventories in the Southern Ocean are up to 90% lower, in our Test simulation relative to our Control simulation. We infer that a more detailed treatment of subgrid-scale processes occurring beneath sea ice may diminish simulated oceanic absorption of anthropogenic CO sub(2), especially in the Southern Ocean. JF - Geophysical Research Letters AU - Caldeira, K AU - Duffy, P B AD - Climate System Modeling Group, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA Y1 - 1998/04// PY - 1998 DA - Apr 1998 SP - 1003 EP - 1006 VL - 25 IS - 7 SN - 0094-8276, 0094-8276 KW - Southern Ocean KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Convection KW - Marine KW - Ice formation KW - Density KW - Thermohaline circulation KW - Simulation KW - Salt rejection KW - Sea ice KW - Salinity KW - Oceans KW - Absorption KW - Ocean-atmosphere system KW - PS, Antarctic Ocean KW - Carbon dioxide KW - Air-water exchanges KW - SW 0810:General KW - Q2 09244:Air-sea coupling KW - SW 0820:Snow, ice and frost KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16535344?accountid=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=Geophysical+Research+Letters&rft.atitle=Sensitivity+of+simulated+CFC-11+distributions+in+a+global+ocean+model+to+the+treatment+of+salt+rejected+during+sea-ice+formation&rft.au=Caldeira%2C+K%3BDuffy%2C+P+B&rft.aulast=Caldeira&rft.aufirst=K&rft.date=1998-04-01&rft.volume=25&rft.issue=7&rft.spage=1003&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Convection; Ice formation; Salinity; Sea ice; Oceans; Density; Ocean-atmosphere system; Thermohaline circulation; Simulation; Carbon dioxide; Air-water exchanges; Absorption; Salt rejection; PS, Antarctic Ocean; Marine ER - TY - JOUR T1 - Effects of long-term elevated [CO sub(2)] from natural CO sub(2) springs on Nardus stricta: photosynthesis, biochemistry, growth and phenology AN - 16490317; 4354718 AB - Plants of Nardus stricta growing near a cold, naturally emitting CO sub(2) spring in Iceland were used to investigate the long-term (> 100 years) effects of elevated [CO sub(2)] on photosynthesis, biochemistry, growth and phenology in a northern grassland ecosystem. Comparisons were made between plants growing in an atmosphere naturally enriched with CO sub(2) ( approximately 790 mu mol mol super(-1)) near the CO sub(2) spring and plants of the same species growing in adjacent areas exposed to ambient CO sub(2) concentrations ( approximately 360 mu mol mol super(-1)). Nardus stricta growing near the spring exhibited earlier senescence and reductions in photosynthetic capacity ( approximately 25%), Rubisco content ( approximately 26%), Rubisco activity ( approximately 40%), Rubisco activation state ( approximately 23%), chlorophyll content ( approximately 33%) and leaf area index ( approximately 22%) compared with plants growing away from the spring. The potential positive effects of elevated [CO sub(2)] on grassland ecosystems in Iceland are likely to be reduced by strong down-regulation in the photosynthetic apparatus of the abundant N. stricta species. JF - Plant, Cell & Environment AU - Cook, A C AU - Tissue, D T AU - Roberts, S W AU - Oechel, W C AD - Lawrence Livermore National Laboratory, Center for Accelerator Mass Spectrometry, PO Box 808, L397 Livermore, CA 94551-9900, USA, acook@llnl.gov Y1 - 1998/04// PY - 1998 DA - Apr 1998 SP - 417 EP - 425 VL - 21 IS - 4 SN - 0140-7791, 0140-7791 KW - Iceland KW - Nardus stricta KW - carbon dioxide KW - Ecology Abstracts; Pollution Abstracts KW - P 5000:LAND POLLUTION KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16490317?accountid=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=Plant%2C+Cell+%26+Environment&rft.atitle=Effects+of+long-term+elevated+%5BCO+sub%282%29%5D+from+natural+CO+sub%282%29+springs+on+Nardus+stricta%3A+photosynthesis%2C+biochemistry%2C+growth+and+phenology&rft.au=Cook%2C+A+C%3BTissue%2C+D+T%3BRoberts%2C+S+W%3BOechel%2C+W+C&rft.aulast=Cook&rft.aufirst=A&rft.date=1998-04-01&rft.volume=21&rft.issue=4&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Plant%2C+Cell+%26+Environment&rft.issn=01407791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Thin crust and active upper mantle beneath the southern Sierra Nevada in the Western United States AN - 52616770; 1998-027867 AB - Analysis of seismic-refraction/wide-angle reflection travel-time and seismic amplitude data collected during the 1993 Southern Sierra Nevada Continental Dynamics (SSCD) project resolves a small crustal root (40-42 km thick) centered 80 km west of the Sierran topographic crest. The SSCD experiment consisted of a west-east profile across the Sierra Nevada at approximately 36.5 degrees N and a north-south profile extending the length of Owens Valley, located eastward of the Sierran topographic crest. Two-dimensional finite-difference travel-time inversion of P (sub g) and P (sub n) arrivals resolves upper-crustal velocities of 6.0 to 6.4 km s (super -1) within the Sierran Batholith and Basin and Range, an upper-crustal west-dipping wedge of higher velocities (6.8-7.2 km s (super -1) ) consistent with ophiolitic material underlying the Great Valley sedimentary sequence, and higher velocities in the lower crust beneath the Basin and Range (6.8-7.0 km s (super -1) ) than those beneath the Sierran Batholith (6.6 km s (super -1) ). Low average P (sub n) velocities (7.6-7.9 km s (super -1) ) and a laminated transitional Moho imaged beneath the Sierran Batholith also differ from the higher P (sub n) velocities (7.9-8.0 km s (super -1) ) and sharp first-order Moho observed beneath the Basin and Range. The crust decreases in thickness both westward of the root to 28-34 km beneath the Great Valley and eastward to 35 km beneath the highest Sierran topography and decreases further to 27-30 km beneath the Basin and Range. Crustal thickness also appears to increase southeast to northwest from 29-30 km beneath the Garlock Fault in the south to 38-40 km beneath the north end of Chalfant Valley. Juxtaposition of the crustal model with previous P-wave tomography models of the southernmost Sierra Nevada upper-mantle reveal that the thickest Sierran crust on the west-east profile overlies a pronounced upper-mantle high-velocity anomaly (+5%), whereas the region of laminated Moho overlies a flanking upper-mantle low-velocity region (-3%). The upper-mantle velocity anomalies, relatively low P (sub n) , and relatively flat Moho, observed beneath the Sierran crest suggest that the recent uplift of the Sierra Nevada is due to asthenospheric flow and/or lithospheric thinning beneath the southeastern Sierra Nevada and Basin and Range. JF - Tectonophysics AU - Ruppert, Stanley AU - Fliedner, Moritz M AU - Zandt, George A2 - Klemperer, Simon L. A2 - Mooney, Walter D. Y1 - 1998/03// PY - 1998 DA - March 1998 SP - 237 EP - 252 PB - Elsevier, Amsterdam VL - 286 IS - 1-4 SN - 0040-1951, 0040-1951 KW - United States KW - tomography KW - Sierra Nevada KW - P-waves KW - geophysical surveys KW - Basin and Range Province KW - finite difference analysis KW - mantle KW - elastic waves KW - continental crust KW - refraction methods KW - SSCD Program KW - California KW - vertical seismic profiles KW - Western U.S. KW - Sierra Nevada Batholith KW - deep seismic sounding KW - upper mantle KW - North America KW - body waves KW - seismic profiles KW - lithosphere KW - statistical analysis KW - geophysical methods KW - Southern Sierra Nevada Continental Dynamics Program KW - reflection methods KW - inverse problem KW - Mohorovicic discontinuity KW - two-dimensional models KW - seismic methods KW - Southern California KW - velocity structure KW - traveltime KW - surveys KW - geophysical profiles KW - seismic waves KW - crust KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52616770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=Thin+crust+and+active+upper+mantle+beneath+the+southern+Sierra+Nevada+in+the+Western+United+States&rft.au=Ruppert%2C+Stanley%3BFliedner%2C+Moritz+M%3BZandt%2C+George&rft.aulast=Ruppert&rft.aufirst=Stanley&rft.date=1998-03-01&rft.volume=286&rft.issue=1-4&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Conference title - 7th international symposium on Deep seismic profiling of the continents N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1998-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. sects., sketch map N1 - SuppNotes - Special issue N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - Basin and Range Province; body waves; California; continental crust; crust; deep seismic sounding; elastic waves; finite difference analysis; geophysical methods; geophysical profiles; geophysical surveys; inverse problem; lithosphere; mantle; Mohorovicic discontinuity; North America; P-waves; reflection methods; refraction methods; seismic methods; seismic profiles; seismic waves; Sierra Nevada; Sierra Nevada Batholith; Southern California; Southern Sierra Nevada Continental Dynamics Program; SSCD Program; statistical analysis; surveys; tomography; traveltime; two-dimensional models; United States; upper mantle; velocity structure; vertical seismic profiles; Western U.S. ER - TY - JOUR T1 - Monitoring DNAPL pumping using integrated geophysical techniques AN - 51279423; 2008-039971 AB - The removal of DNAPL during pumping has been monitored using integrated in situ geophysical techniques. At Hill Air Force Base in Utah, a free-product DNAPL plume (consisting predominantly of TCE) is pooled in water-wet soil on a thick clay aquitard. Groundwater pumping at Operable Unit 2 (OU 2) began in 1994; to date, over 30,000 gallons of DNAPL have been recovered from the site. From September, 1994 through September, 1995, changes in the basin during DNAPL pumping were monitored using fiber optic chemical sensors, neutron logs and electrical resistance tomography (ERT). Fiber optic sensors and neutron logs verify the presence of DNAPL in the vicinity of three boreholes which form a cross section from the perimeter of the basin to its center. Cross borehole ERT images the changes in formation electrical properties due to the removal of DNAPL, extending the understanding of DNAPL removal between the boreholes. During pumping, electrical resistivities decreased; we suggest that these decreases are directly caused by the reduction in DNAPL. During ground water pumping, water with relatively low resistivity replaces some of the DNAPL pockets as the highly insulating DNAPL is removed. The results suggest that, as DNAPL is pumped from a nearby well, product slowly drains along the top of an aquitard and into the pump well, where it collects. JF - Journal of Environmental & Engineering Geophysics AU - Newmark, Robin L AU - Daily, William D AU - Kyle, Kevin R AU - Ramirez, Abelardo L Y1 - 1998/03// PY - 1998 DA - March 1998 SP - 7 EP - 13 PB - Environmental and Engineering Geophysical Society, Englewood, CO VL - 3 IS - 1 SN - 1083-1363, 1083-1363 KW - United States KW - clay KW - aquifer vulnerability KW - neutron methods KW - contaminant plumes KW - pumping KW - techniques KW - dense nonaqueous phase liquids KW - remediation KW - ground water KW - decontamination KW - sediments KW - clastic sediments KW - geophysical methods KW - pollution KW - resistivity KW - petroleum products KW - aquitards KW - aquifers KW - nonaqueous phase liquids KW - organic compounds KW - saturation KW - Hill Air Force Base KW - hydrocarbons KW - theoretical models KW - Utah KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51279423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Environmental+%26+Engineering+Geophysics&rft.atitle=Monitoring+DNAPL+pumping+using+integrated+geophysical+techniques&rft.au=Newmark%2C+Robin+L%3BDaily%2C+William+D%3BKyle%2C+Kevin+R%3BRamirez%2C+Abelardo+L&rft.aulast=Newmark&rft.aufirst=Robin&rft.date=1998-03-01&rft.volume=3&rft.issue=1&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+%26+Engineering+Geophysics&rft.issn=10831363&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 - 7 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; aquitards; clastic sediments; clay; contaminant plumes; decontamination; dense nonaqueous phase liquids; geophysical methods; ground water; Hill Air Force Base; hydrocarbons; neutron methods; nonaqueous phase liquids; organic compounds; petroleum products; pollution; pumping; remediation; resistivity; saturation; sediments; techniques; theoretical models; United States; Utah ER - TY - JOUR T1 - Verification of subsurface barriers using integrated geophysical techniques AN - 50916344; 1999-060528 JF - Proceedings of SAGEEP AU - Pellerin, Louise AU - Reichhardt, David AU - Daley, Thomas AU - Gilbert, Fabien AU - Hubbard, Susan AU - Majer, Ernest AU - Peterson, John AU - Daily, William AU - Ramirez, Abelardo A2 - Bell, Ronald S. A2 - Powers, Michael H. A2 - Larson, Timothy Y1 - 1998/03// PY - 1998 DA - March 1998 SP - 635 EP - 643 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1998 KW - United States KW - Delaware KW - Kent County Delaware KW - geophysical surveys KW - ground-penetrating radar KW - well-logging KW - geophysical methods KW - electrical methods KW - radar methods KW - seismic logging KW - resistivity KW - seismic methods KW - case studies KW - Dover Air Force Base KW - verification KW - electromagnetic methods KW - surveys KW - waste disposal KW - military facilities KW - electromagnetic logging KW - underground disposal KW - electromagnetic induction KW - disposal barriers KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50916344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Verification+of+subsurface+barriers+using+integrated+geophysical+techniques&rft.au=Pellerin%2C+Louise%3BReichhardt%2C+David%3BDaley%2C+Thomas%3BGilbert%2C+Fabien%3BHubbard%2C+Susan%3BMajer%2C+Ernest%3BPeterson%2C+John%3BDaily%2C+William%3BRamirez%2C+Abelardo&rft.aulast=Pellerin&rft.aufirst=Louise&rft.date=1998-03-01&rft.volume=1998&rft.issue=&rft.spage=635&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Environmental and Engineering Geophysical Society 11th annual meeting , symposium on the Application of geophysics to environmental and engineering problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 3 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - case studies; Delaware; disposal barriers; Dover Air Force Base; electrical methods; electromagnetic induction; electromagnetic logging; electromagnetic methods; geophysical methods; geophysical surveys; ground-penetrating radar; Kent County Delaware; military facilities; radar methods; resistivity; seismic logging; seismic methods; surveys; underground disposal; United States; verification; waste disposal; well-logging ER - TY - JOUR T1 - Localized corrosion behavior of candidate nuclear waste package container materials AN - 17137086; 4435568 AB - Electrochemical cyclic potentiodynamic polarization experiments were performed on six types of alloys to evaluate their susceptibility to localized corrosion in aqueous environments relevant to the potential underground, high-level nuclear waste repository. The effects of chloride ion (Cl super(-)) concentration, pH, temperature, and electrochemical potential scan rate on the pitting/crevice corrosion behavior of these materials were investigated. The results indicated that alloys 825, G-3, and G-30 suffered from pitting and crevice corrosion in all tested environments. Alloy C-4 showed localized attack in 90 degree C brines, but alloys C-22 and Ti Grade-12 were immune to localized corrosion under all experimental conditions studied. JF - Materials Performance AU - Roy, A K AU - Fleming, D L AU - Lum, B Y AD - Lawrence Livermore National Laboratory, P.O. Box 808, M/S L-369, Livermore, CA 94551, USA Y1 - 1998/03// PY - 1998 DA - Mar 1998 SP - 54 EP - 60 VL - 37 IS - 3 SN - 0094-1492, 0094-1492 KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Materials testing KW - Containment KW - Packaging KW - Radioactive wastes KW - Storage KW - Corrosion 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/17137086?accountid=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=Materials+Performance&rft.atitle=Localized+corrosion+behavior+of+candidate+nuclear+waste+package+container+materials&rft.au=Roy%2C+A+K%3BFleming%2C+D+L%3BLum%2C+B+Y&rft.aulast=Roy&rft.aufirst=A&rft.date=1998-03-01&rft.volume=37&rft.issue=3&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Materials+Performance&rft.issn=00941492&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 - Containment; Corrosion; Hazardous wastes; Radioactive wastes; Packaging; Materials testing; Storage ER - TY - JOUR T1 - Molecular bases of hprt mutations in malathion-treated human T-lymphocytes. AN - 79791894; 9541638 AB - Recently, we reported that 6 of 84 (7.1%) hprt mutants arising in in vitro malathion-treated human T-lymphocytes were characterized by specific genomic deletions in a 125-bp region of exon 3 (Pluth et al., Cancer Research 56 (1996) 2393-2399. We have now extended study to determine whether additional differences in molecular spectrum at a basepair level exist between control and malathion-treated mutations, and investigated whether there is evidence to support the hypothesis that malathion is an alkylating agent. We analyzed 101 hprt mutants (24 from control and 77 from treated cultures) isolated form six in vitro malathion exposures of T-lymphocytes from four healthy male donors. Analysis consisted of: Southern blotting, genomic multiplex PCR, genomic DNA sequencing and reverse transcription of PCR amplification (RT/PCR) and sequencing of the cDNA product. Mutations at several basepair sites were frequent after malathion exposure and were isolated from treated cells from at least two different individuals. Using a human hprt mutation database for comparison, the frequency of mutations at one of these sites (basepair 134) was found to be significantly elevated in the malathion-treated cell (p < 0.0005). Hprt mutations in malathion-treated cells arose preferentially at G:C basepairs, which is consistent with earlier reports that malathion alkylates guanine nucleotides. Assessing molecular changes at both genomic and cDNA levels in the same mutants revealed that many small, partial exon deletions (< 20 bp) in genomic DNA were often represented in the cDNA at the loss of one or more exons. In addition, It was noted that identical genomic mutations can result in different cDNA products in different T-cell isolates. These observations affirm the importance of genomic sequence analysis in combination with RT/PCR for a more accurate definition of the mutation spectrum. JF - Mutation research AU - Pluth, J M AU - O'Neill, J P AU - Nicklas, J A AU - Albertini, R J AD - Genetic Toxicology Laboratory, University of Vermont, Burlington 05401, USA. pluth1@llnl.gov Y1 - 1998/02/02/ PY - 1998 DA - 1998 Feb 02 SP - 137 EP - 148 VL - 397 IS - 2 SN - 0027-5107, 0027-5107 KW - Insecticides KW - 0 KW - Hypoxanthine Phosphoribosyltransferase KW - EC 2.4.2.8 KW - Malathion KW - U5N7SU872W KW - Index Medicus KW - Polymerase Chain Reaction KW - RNA Splicing KW - Humans KW - Male KW - Sequence Deletion KW - Insecticides -- toxicity KW - Hypoxanthine Phosphoribosyltransferase -- genetics KW - T-Lymphocytes -- drug effects KW - Mutation KW - T-Lymphocytes -- enzymology KW - Malathion -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79791894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+research&rft.atitle=Molecular+bases+of+hprt+mutations+in+malathion-treated+human+T-lymphocytes.&rft.au=Pluth%2C+J+M%3BO%27Neill%2C+J+P%3BNicklas%2C+J+A%3BAlbertini%2C+R+J&rft.aulast=Pluth&rft.aufirst=J&rft.date=1998-02-02&rft.volume=397&rft.issue=2&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Mutation+research&rft.issn=00275107&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-04-22 N1 - Date created - 1998-04-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Redox ratios with relevant resolution; solving an old problem by using the synchrotron microXANES probe AN - 52628296; 1998-022953 AB - In situ measurements of the oxidation state of iron in common minerals have been made by using the synchrotron microXANES (SmX) technique. The results compare very well with wet-chemical and Mossbauer spectroscopic analyses of the same samples. Areas of 10X20 mu m have been measured successfully, and the results demonstrate that both zoning of Fe (super 3+) and the effect of oxide inclusions on bulk analyses can be quantified. Such sample heterogeneity cannot be detected by conventional bulk analytical techniques. The ability to measure Fe (super 3+) /Sigma Fe with spatial resolution comparable to that of the electron probe further enhances the importance of microbeam techniques in the earth and planetary sciences. Direct measurements of elemental oxidation states that can constrain oxidation-reduction processes are now possible with close to the spatial resolution of traditional compositional analyses derived from electron, or ion, beam and optical microscopic techniques. New, more intense, synchrotron sources such as the Advanced Photon Source at Argonne National Laboratory, are becoming available for analyses of 1-10 mu m areas. JF - Geology (Boulder) AU - Delaney, Jeremy S AU - Dyar, M Darby AU - Sutton, S R AU - Bajt, Sasa Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 139 EP - 142 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 2 SN - 0091-7613, 0091-7613 KW - silicates KW - ring silicates KW - techniques KW - olivine group KW - iron KW - XANES spectra KW - synchrotron radiation KW - ferric iron KW - pyroxene group KW - clinopyroxene KW - mica group KW - olivine KW - orthosilicates KW - X-ray analysis KW - spectra KW - Eh KW - tourmaline group KW - chain silicates KW - chemical analysis KW - oxidation KW - amphibole group KW - X-ray spectra KW - ferrous iron KW - nesosilicates KW - metals KW - biotite KW - X-ray spectroscopy KW - sheet silicates KW - spectroscopy KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52628296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Redox+ratios+with+relevant+resolution%3B+solving+an+old+problem+by+using+the+synchrotron+microXANES+probe&rft.au=Delaney%2C+Jeremy+S%3BDyar%2C+M+Darby%3BSutton%2C+S+R%3BBajt%2C+Sasa&rft.aulast=Delaney&rft.aufirst=Jeremy&rft.date=1998-02-01&rft.volume=26&rft.issue=2&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281998%290262.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1998-01-01 N1 - Number of references - 28 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - amphibole group; biotite; chain silicates; chemical analysis; clinopyroxene; Eh; ferric iron; ferrous iron; iron; metals; mica group; nesosilicates; olivine; olivine group; orthosilicates; oxidation; pyroxene group; ring silicates; sheet silicates; silicates; spectra; spectroscopy; synchrotron radiation; techniques; tourmaline group; X-ray analysis; X-ray spectra; X-ray spectroscopy; XANES spectra DO - http://dx.doi.org/10.1130/0091-7613(1998)026<0139:RRWRRS>2.3.CO;2 ER - TY - JOUR T1 - Late Cenozoic tectonic evolution of the southern Chinese Tien Shan AN - 50165865; 1998-030771 AB - Structural, sedimentological, magnetostratigraphic, and (super 40) Ar/ (super 39) Ar thermochronological investigations were conducted in the southern Chinese Tian Shan. On the basis of our own mapping and earlier investigations in the area, the Late Cenozoic southern Tian Shan thrust belt may be divided into four segments based on their style of deformation. From west to east, they are (1) Kashi-Aksu imbricate thrust system, (2) the Baicheng-Kuche fold and thrust system, (3) the Korla right-slip transfer system, and (4) the Lop-Nor thrust system. The westernmost Kashi-Aksu system is characterized by the occurrence of evenly spaced (12-15 km) imbricate thrusts. The Baicheng-Kuche and Korla systems are expressed by a major north dipping thrust (the Kuche thrust) that changes its strike eastward to become a NW striking oblique thrust ramp (the Korla transfer zone). The Lop Nor system in the eastern-most part of the southern Chinese Tian Shan consists of widely spaced thrusts, all involved with basement rocks. Geologic mapping and cross-section construction suggest that at least 20-40 km of crustal shortening with a horizontal shortening strain of 20-30% has occurred in the southern Chinese Tian Shan during the late Cenozoic. These estimates are minimum because of both conservative extrapolation of the thrust geometries and partial coverage of the thrust belt by the cross sections. The timing of initial thrusting is best constrained in the Kuche basin where crustal shortening may have occurred at 21-24 Ma, the time of a major facies transition between lacusrine and braided-fluvial sequences constrained in general by biostratigraphy and in detail by magnetostratigraphy. This estimate represents only a minimum age, as development of thrusts in the southern Chinese Tian Shan may have propagated southward toward the foreland. Thus the sedimentary record only represents the southernmost and therefore youngest phase of thrusting. If our estimate of timing for the thrust initiation (21-24 Ma) is correct, using the estimated magnitude of shortening (20-40 km) and shortening strain (20-30%), the averaged rates of late Cenozoic horizontal slip and shortening strain are 1-1.9 mm yr (super -1) and 2.9-4.5 X 10 (super -16) s (super -1) , respectively. Our reconnaissance (super 40) Ar/ (super 39) Ar thermochronological analysis in conjunction with earlier published results of apatite fission track analysis by other workers in the Chinese Tian Shan suggests that the magnitude of Cenozoic denudation is no more than 10 km, most likely less than 5 km. We demonstrate via a simple Airy-isostasy model that when the thermal effect on changes in surface elevation is negligible, determination of the spatial distribution and temporal variation of both horizontal shortening strain and denudation becomes a key to reconstructing the elevation history of the Tian Shan. Using this simple model, the loosely constrained magnitude of crustal-shortening strain and denudation in the southern Chinese Tian Shan implies that it may have been elevated 1.0-2.0 km since the onset of Cenozoic thrusting. Copyright 1998 by the American Geophysical Union. JF - Tectonics AU - Yin, A AU - Nie, S AU - Craig, P AU - Harrison, T M AU - Ryerson, F J AU - Qian, Xianglin AU - Yang, Geng Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 1 EP - 27 PB - American Geophysical Union, Washington, DC VL - 17 IS - 1 SN - 0278-7407, 0278-7407 KW - Scale: 1:50,000 KW - Type: geologic map KW - Far East KW - strain KW - isotopes KW - Tien Shan KW - geologic maps KW - magnetostratigraphy KW - stable isotopes KW - Cenozoic KW - Ar-40/Ar-39 KW - sedimentary rocks KW - radioactive isotopes KW - denudation KW - noble gases KW - thermochronology KW - tectonics KW - Asia KW - China KW - upper Cenozoic KW - thrust sheets KW - deformation KW - argon KW - imbricate tectonics KW - crustal shortening KW - maps KW - fold and thrust belts KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50165865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonics&rft.atitle=Late+Cenozoic+tectonic+evolution+of+the+southern+Chinese+Tien+Shan&rft.au=Yin%2C+A%3BNie%2C+S%3BCraig%2C+P%3BHarrison%2C+T+M%3BRyerson%2C+F+J%3BQian%2C+Xianglin%3BYang%2C+Geng&rft.aulast=Yin&rft.aufirst=A&rft.date=1998-02-01&rft.volume=17&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Tectonics&rft.issn=02787407&rft_id=info:doi/10.1029%2F97TC03140 L2 - http://www.agu.org/journals/tc/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 96 N1 - PubXState - DC N1 - Document feature - illus. incl. sects., strat. col., 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - TCTNDM N1 - SubjectsTermNotLitGenreText - Ar-40/Ar-39; argon; Asia; Cenozoic; China; crustal shortening; deformation; denudation; Far East; fold and thrust belts; geologic maps; imbricate tectonics; isotopes; magnetostratigraphy; maps; noble gases; radioactive isotopes; sedimentary rocks; stable isotopes; strain; tectonics; thermochronology; thrust sheets; Tien Shan; upper Cenozoic DO - http://dx.doi.org/10.1029/97TC03140 ER - TY - JOUR T1 - Lagrangian stochastic particle model simulations of turbulent dispersion around buildings AN - 16400873; 4316174 AB - This paper describes a numerical modeling approach that can be used to provide estimates of air concentrations due to emissions at industrial sites or other sites where buildings may have an important impact on the dispersion patterns. The procedure consists of two sequential steps: (i) Prediction of mean flow and turbulence fields via a turbulent flow model; and, (ii) Employment of the calculated flow and turbulence fields to drive a Lagrangian stochastic particle model. Two flow scenarios are used as input to a Lagrangian model; the scenarios assume neutral atmospheric conditions and incoming winds that are from 270 and 240 degree . The problem configuration for the first calculation is based on an earlier transport and diffusion simulation that employed an existing particle-in-cell flux-gradient dispersion model. The second simulation is used to demonstrate the strong spatial variations that the concentration field exhibit within the highly complex separation zones of building wakes. The relationship between concentration levels and toxic load are discussed for the case of a chemical spill. JF - Atmospheric Environment AU - Lee, R L AU - Naeslund, E AD - Atmospheric Science Division, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA, lee34@llnl.gov Y1 - 1998/02// PY - 1998 DA - Feb 1998 SP - 665 EP - 672 VL - 32 IS - 4 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16400873?accountid=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=Atmospheric+Environment&rft.atitle=Lagrangian+stochastic+particle+model+simulations+of+turbulent+dispersion+around+buildings&rft.au=Lee%2C+R+L%3BNaeslund%2C+E&rft.aulast=Lee&rft.aufirst=R&rft.date=1998-02-01&rft.volume=32&rft.issue=4&rft.spage=665&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Ancient trees in Amazonia AN - 807273715; 13760249 AB - The ages of tropical rain forest trees provide critical information for understanding the dynamics of tree populations, determining historical patterns of disturbance, developing sustainable forestry practices and calculating carbon cycling rates. Nevertheless, the ecological life history of most tropical trees is unknown and even the ages of the largest trees remain to be determined. Tree ages are typi