TY - JOUR T1 - Record of fluid-rock interactions on Mars from the meteorite ALH84001 AN - 50187812; 1995-010350 AB - Allan Hills (ALH)84001 is the most recently recognized member of a suite of meteorites--the SNCs--that almost certainly originated on Mars. Preliminary studies suggest that it may be older than other martian meteorites, and may hold important clues regarding near-surface processes on Mars and the evolution of the martian atmosphere. Reported here are analyses of the carbon and oxygen stable-isotope compositions of the carbonates that place constraints on their formation conditions. The results imply the presence of at least two chemically distinct carbonates--one Ca, Fe-rich, the other Mg-rich--that are enriched in (super 13) C relative to terrestrial carbonates, consistent with martian atmospheric CO (sub 2) as the carbon source. The oxygen isotope compositions of the carbonates indicate that they precipitated from a low-temperature fluid in the martian crust. Combined with textural and bulk geochemical considerations, the isotope data suggest that carbonate deposition took place in an open-system environment in which the ambient temperature fluctuated. (Auth. mod.) JF - Nature (London) AU - Romanek, C S AU - Grady, M M AU - Wright, I P AU - Mittlefehldt, D W AU - Socki, R A AU - Pillinger, C T AU - Gibson, E K, Jr Y1 - 1994/12/15/ PY - 1994 DA - 1994 Dec 15 SP - 655 EP - 657 PB - Macmillan Journals, London VL - 372 IS - 6507 SN - 0028-0836, 0028-0836 KW - calcium KW - magnesium KW - stony meteorites KW - oxygen KW - isotopes KW - Martian meteorites KW - fluid phase KW - stable isotopes KW - iron KW - temperature KW - meteorites KW - water-rock interaction KW - open systems KW - carbon KW - ALH 84001 KW - geochemistry KW - alkaline earth metals KW - textures KW - parent bodies KW - C-13/C-12 KW - O-18/O-16 KW - achondrites KW - Allan Hills Meteorites KW - precipitation KW - metals KW - terrestrial comparison KW - carbonates KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50187812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Record+of+fluid-rock+interactions+on+Mars+from+the+meteorite+ALH84001&rft.au=Romanek%2C+C+S%3BGrady%2C+M+M%3BWright%2C+I+P%3BMittlefehldt%2C+D+W%3BSocki%2C+R+A%3BPillinger%2C+C+T%3BGibson%2C+E+K%2C+Jr&rft.aulast=Romanek&rft.aufirst=C&rft.date=1994-12-15&rft.volume=372&rft.issue=6507&rft.spage=655&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F372655a0 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-08-16 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; alkaline earth metals; Allan Hills Meteorites; C-13/C-12; calcium; carbon; carbonates; fluid phase; geochemistry; iron; isotopes; magnesium; Martian meteorites; metals; meteorites; O-18/O-16; open systems; oxygen; parent bodies; precipitation; stable isotopes; stony meteorites; temperature; terrestrial comparison; textures; water-rock interaction DO - http://dx.doi.org/10.1038/372655a0 ER - TY - JOUR T1 - Correlation of ozone loss with the presence of volcanic aerosols AN - 50160033; 1995-029816 JF - Geophysical Research Letters AU - McGee, Thomas J AU - Newman, Paul AU - Gross, Michael AU - Singh, Upendra AU - Godin, Sophie AU - Lacoste, Anne-Marie AU - Megie, Gerard Y1 - 1994/12/15/ PY - 1994 DA - 1994 Dec 15 SP - 2801 EP - 2804 PB - American Geophysical Union, Washington, DC VL - 21 IS - 25 SN - 0094-8276, 0094-8276 KW - Luzon KW - Far East KW - laser methods KW - radar methods KW - global change KW - satellite methods KW - volcanology KW - ozone KW - stratosphere KW - Mount Pinatubo KW - lidar methods KW - Philippine Islands KW - volcanism KW - aerosols KW - Asia KW - climate KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50160033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Correlation+of+ozone+loss+with+the+presence+of+volcanic+aerosols&rft.au=McGee%2C+Thomas+J%3BNewman%2C+Paul%3BGross%2C+Michael%3BSingh%2C+Upendra%3BGodin%2C+Sophie%3BLacoste%2C+Anne-Marie%3BMegie%2C+Gerard&rft.aulast=McGee&rft.aufirst=Thomas&rft.date=1994-12-15&rft.volume=21&rft.issue=25&rft.spage=2801&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F94GL02350 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 10 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2013-01-17 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Asia; climate; Far East; global change; laser methods; lidar methods; Luzon; Mount Pinatubo; ozone; Philippine Islands; radar methods; satellite methods; stratosphere; volcanism; volcanology DO - http://dx.doi.org/10.1029/94GL02350 ER - TY - JOUR T1 - Fractionation of nitrogen isotopes on Mars; the role of the regolith as a buffer AN - 916840370; 2012-012690 JF - Icarus AU - Zent, A P AU - Quinn, R C AU - Jakosky, B M Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 537 EP - 540 PB - Elsevier, New York, NY VL - 112 IS - 2 SN - 0019-1035, 0019-1035 KW - United States KW - isotope fractionation KW - Hawaii Island KW - volcanic rocks KW - glasses KW - isotopes KW - igneous rocks KW - Mauna Kea KW - Mars KW - stable isotopes KW - nitrogen KW - carbon dioxide KW - degassing KW - N-15/N-14 KW - Hawaii County Hawaii KW - isotope ratios KW - Hawaii KW - atmosphere KW - East Pacific Ocean Islands KW - adsorption KW - palagonite KW - terrestrial planets KW - planets KW - Oceania KW - terrestrial comparison KW - Polynesia KW - regolith KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916840370?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Fractionation+of+nitrogen+isotopes+on+Mars%3B+the+role+of+the+regolith+as+a+buffer&rft.au=Zent%2C+A+P%3BQuinn%2C+R+C%3BJakosky%2C+B+M&rft.aulast=Zent&rft.aufirst=A&rft.date=1994-12-01&rft.volume=112&rft.issue=2&rft.spage=537&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 20 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - adsorption; atmosphere; carbon dioxide; degassing; East Pacific Ocean Islands; glasses; Hawaii; Hawaii County Hawaii; Hawaii Island; igneous rocks; isotope fractionation; isotope ratios; isotopes; Mars; Mauna Kea; N-15/N-14; nitrogen; Oceania; palagonite; planets; Polynesia; regolith; stable isotopes; terrestrial comparison; terrestrial planets; United States; volcanic rocks ER - TY - JOUR T1 - Learning Words from Context and Dictionaries: An Experimental Comparison AN - 85324896; llba-9502373 AB - German students of English (total N = 94 eleventh graders) received either a text with unfamiliar English words or their monolingual English dictionary entries, in an attempt to determine the independent & interactive effects of contextual & definitional information on vocabulary learning. A third group of Ss was given both text & dictionary entries. Ss used each target word in an English sentence & then translated their sentences into German. Ss who had received text & dictionary entries tended to favor the dictionary & thus performed no better than the other Ss. Ss learning words from context replaced unfamiliar words with familiar words conforming to contextual constraints. Ss in the dictionary group commonly substituted a relevant part of the definition for the headword. Lexical errors occurred for different reasons, which are described here. Results demonstrated that information about the contexts in which words are used is crucial for acquiring an adequate understanding of word meanings. 6 Tables, 5 Figures, 45 References. Adapted from the source document JF - Applied Psycholinguistics AU - Fischer, Ute AD - NASA Ames Research Center, MS 262-3 Moffett Field CA 94035-1000 Y1 - 1994/12// PY - 1994 DA - Dec 1994 SP - 551 EP - 574 VL - 15 IS - 4 SN - 0142-7164, 0142-7164 KW - second-language vocabulary learning, contextual/dictionary definitional information factors KW - experiment KW - German-speaking 11th graders learning English as a second language KW - *Lexicon (47150) KW - *German (27700) KW - *English as a Second Language (22100) KW - *Second Language Learning (75850) KW - *Context Clues (15300) KW - *Word Meaning (97700) KW - article KW - 4113: applied linguistics; non-native language acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85324896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Psycholinguistics&rft.atitle=Learning+Words+from+Context+and+Dictionaries%3A+An+Experimental+Comparison&rft.au=Fischer%2C+Ute&rft.aulast=Fischer&rft.aufirst=Ute&rft.date=1994-12-01&rft.volume=15&rft.issue=4&rft.spage=551&rft.isbn=&rft.btitle=&rft.title=Applied+Psycholinguistics&rft.issn=01427164&rft_id=info:doi/ LA - English DB - ComDisDome N1 - Date revised - 2003-10-01 N1 - Last updated - 2014-06-17 N1 - CODEN - APPSDZ N1 - SubjectsTermNotLitGenreText - *English as a Second Language (22100); *Second Language Learning (75850); *German (27700); *Lexicon (47150); *Context Clues (15300); *Word Meaning (97700) ER - TY - JOUR T1 - Earth from sky AN - 52841120; 1996-038141 JF - Scientific American AU - Evans, Diane L AU - Stofan, Ellen R AU - Jones, Thomas D AU - Godwin, Linda M Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 70 EP - 75 PB - Scientific American, Inc., New York, NY VL - 271 IS - 6 SN - 0036-8733, 0036-8733 KW - imagery KW - popular geology KW - Shuttle Imaging Radar KW - space photography KW - radar methods KW - Endeavour Space Shuttle KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52841120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientific+American&rft.atitle=Earth+from+sky&rft.au=Evans%2C+Diane+L%3BStofan%2C+Ellen+R%3BJones%2C+Thomas+D%3BGodwin%2C+Linda+M&rft.aulast=Evans&rft.aufirst=Diane&rft.date=1994-12-01&rft.volume=271&rft.issue=6&rft.spage=70&rft.isbn=&rft.btitle=&rft.title=Scientific+American&rft.issn=00368733&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCAMAC N1 - SubjectsTermNotLitGenreText - Endeavour Space Shuttle; imagery; popular geology; radar methods; remote sensing; Shuttle Imaging Radar; space photography ER - TY - JOUR T1 - Desertification on the south side of the Sahara; did the desert expand from 1980 to 1993 AN - 52018843; 2003-018115 AB - Polar-orbiting meteorological satellite data have been used to determine the extent of the Sahara Desert and document its Interannual variation from 1980 to 1993. The Sahara Desert ranged in size from 8,633,000 square kilometers in 1980 to 9,982,000 square kilometers in 1984. The greatest north-south latitudinal movement of the southern Saharan boundary was 110 km from 1984 to 1985 and resulted in a decrease in desert area of 724,000 square kilometers. While the Sahara was greater In area in 1993 than it was in 1980, it was smaller in area in 1993 than it was in 1984. A tremendous degree of interannual climatic variation has been documented at a sub-continental scale over fourteen years. JF - Revista SELPER AU - Tucker, Compton J AU - Newcomb, Wilbur W AU - Dregne, Harold E AU - Anonymous Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 76 EP - 80 PB - Sociedad de Especialistas Latinoamericanos en Perception Remota y Sistemas de Informacion Espatial (SELPER), Santiago VL - 10 IS - 3-4 SN - 0717-2915, 0717-2915 KW - hydrology KW - eolian features KW - rainfall KW - desertification KW - atmospheric precipitation KW - satellite methods KW - deserts KW - climate change KW - Africa KW - Sahara KW - meteorology KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Revista+SELPER&rft.atitle=Desertification+on+the+south+side+of+the+Sahara%3B+did+the+desert+expand+from+1980+to+1993&rft.au=Tucker%2C+Compton+J%3BNewcomb%2C+Wilbur+W%3BDregne%2C+Harold+E%3BAnonymous&rft.aulast=Tucker&rft.aufirst=Compton&rft.date=1994-12-01&rft.volume=10&rft.issue=3-4&rft.spage=76&rft.isbn=&rft.btitle=&rft.title=Revista+SELPER&rft.issn=07172915&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eco Rio' 94; international symposium on Resource and environmental monitoring N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Africa; atmospheric precipitation; climate change; desertification; deserts; eolian features; hydrology; meteorology; rainfall; remote sensing; Sahara; satellite methods ER - TY - JOUR T1 - The shape and internal structure of the Moon from the Clementine mission AN - 50191562; 1995-010355 JF - Science AU - Zuber, Maria T AU - Smith, David E AU - Lemoine, Frank G AU - Neumann, Gregory A Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 1839 EP - 1843 PB - American Association for the Advancement of Science, Washington, DC VL - 266 IS - 5192 SN - 0036-8075, 0036-8075 KW - impact features KW - Moon KW - crustal thinning KW - isostatic compensation KW - mapping KW - selenodesy KW - thermal history KW - isostasy KW - gravity field KW - topography KW - craters KW - lunar interior KW - lunar crust KW - basins KW - thickness KW - Clementine Program KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50191562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=The+shape+and+internal+structure+of+the+Moon+from+the+Clementine+mission&rft.au=Zuber%2C+Maria+T%3BSmith%2C+David+E%3BLemoine%2C+Frank+G%3BNeumann%2C+Gregory+A&rft.aulast=Zuber&rft.aufirst=Maria&rft.date=1994-12-01&rft.volume=266&rft.issue=5192&rft.spage=1839&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - basins; Clementine Program; craters; crustal thinning; gravity field; impact craters; impact features; isostasy; isostatic compensation; lunar crust; lunar interior; mapping; Moon; selenodesy; thermal history; thickness; topography ER - TY - JOUR T1 - Fullerenes in Allende Meteorite AN - 50189247; 1995-007537 JF - Nature (London) AU - Becker, L AU - Bada, J L AU - Winans, R E AU - Bunch, T E Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 507 PB - Macmillan Journals, London VL - 372 IS - 6506 SN - 0028-0836, 0028-0836 KW - organic materials KW - stony meteorites KW - laser methods KW - mass spectra KW - native elements KW - carbonaceous chondrites KW - CV chondrites KW - Allende Meteorite KW - meteorites KW - organic compounds KW - detection KW - fullerene KW - carbon KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - spectra KW - chondrites KW - aromatic hydrocarbons 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/50189247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Fullerenes+in+Allende+Meteorite&rft.au=Becker%2C+L%3BBada%2C+J+L%3BWinans%2C+R+E%3BBunch%2C+T+E&rft.aulast=Becker&rft.aufirst=L&rft.date=1994-12-01&rft.volume=372&rft.issue=6506&rft.spage=507&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 - 1995-01-01 N1 - Number of references - 10 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - Allende Meteorite; aromatic hydrocarbons; carbon; carbonaceous chondrites; chondrites; CV chondrites; detection; fullerene; hydrocarbons; laser methods; mass spectra; meteorites; native elements; organic compounds; organic materials; polycyclic aromatic hydrocarbons; spectra; stony meteorites ER - TY - JOUR T1 - Topographic-compositional units on the Moon and the early evolution of the lunar crust AN - 50187881; 1995-010359 JF - Science AU - Lucey, Paul G AU - Spudis, Paul D AU - Zuber, Maria T AU - Smith, David E AU - Malaret, Erick Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 1855 EP - 1858 PB - American Association for the Advancement of Science, Washington, DC VL - 266 IS - 5192 SN - 0036-8075, 0036-8075 KW - albedo KW - surface properties KW - imagery KW - Moon KW - altimetry KW - hypsograms KW - evolution KW - South Pole-Aitken Basin KW - topography KW - lunar crust KW - composition KW - basins KW - Clementine Program KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50187881?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Topographic-compositional+units+on+the+Moon+and+the+early+evolution+of+the+lunar+crust&rft.au=Lucey%2C+Paul+G%3BSpudis%2C+Paul+D%3BZuber%2C+Maria+T%3BSmith%2C+David+E%3BMalaret%2C+Erick&rft.aulast=Lucey&rft.aufirst=Paul&rft.date=1994-12-01&rft.volume=266&rft.issue=5192&rft.spage=1855&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Univ. Hawaii, Sch. Ocean and Earth Sci. and Technol., Contrib. No. 3759; Hawaii Inst. Geophys. and Planetol., Contrib. No. 785, Lunar and Planet. Inst., Contrib. No. 849 N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - albedo; altimetry; basins; Clementine Program; composition; evolution; hypsograms; imagery; lunar crust; Moon; South Pole-Aitken Basin; surface properties; topography ER - TY - JOUR T1 - Joint investigations of the middle Pliocene climate; II, GISS GCM Northern Hemisphere results AN - 50171429; 1995-019252 AB - Marine microfaunal data and terrestrial pollen records indicate that the middle Pliocene (ca. 3 Ma) climate is the most recent period in geologic history with global temperatures nearly as warm as those predicted for the coming century. We used the GISS GCM to examine the Pliocene climate by specifying sea surface temperatures and vegetation distributions derived from U.S.G.S. data sets. The simulation resulted in 1.4 degrees C warming, annually averaged over the Northern Hemisphere. Warming was greatest at high latitudes; consequently, the equator to pole temperature gradient decreased by 11.5 degrees C. Surface air temperature increases were greatest in winter, as decreased snow and sea ice triggered a positive albedo feedback effect. At low latitudes, temperatures were mostly unchanged except for an anomalous 3 degrees C cooling over eastern Africa. This anomaly is supported by palynological data and, in the simulation, was a response to the weakening of the Hadley circulation, which caused subtropical clouds and evapotranspiration rates to increase. Evaporation and precipitation rates decreased over the oceans and the appearance of negative P-E anomalies might have implications for the Pliocene thermohaline circulation. The hydrological cycle intensified over the continents, where annual evaporation, rainfall, and soil moisture all increased. However, simulated summer drought conditions are not corroborated by terrestrial records, pointing to deficiencies in either the model, the boundary conditions, or the terrestrial data interpretations. The Pliocene SST pattern implicates increased ocean heat flux as a component force behind the middle Pliocene warmth, since levels of CO (sub 2) , large enough to cause the extreme high latitude temperatures, would generate more tropical warming than is indicated by floral and faunal records. Surface energy fluxes, calculated by the GCM, indicate that an increased meridional ocean heat flux of 32% could reproduce the data-derived SST distribution, despite weakened atmospheric transports. The decreased wind stress values suggest that any increase of ocean heat transports would probably have resulted from a strengthening of the thermohaline circulation. JF - Global and Planetary Change AU - Chandler, Mark AU - Rind, David AU - Thompson, Robert Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 197 EP - 219 PB - Elsevier, Amsterdam VL - 9 IS - 3-4 SN - 0921-8181, 0921-8181 KW - general circulation models KW - patterns KW - middle Pliocene KW - paleoclimatology KW - models KW - Cenozoic KW - Tertiary KW - Neogene KW - Pliocene KW - Northern Hemisphere KW - GISS GCM KW - changes KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50171429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Joint+investigations+of+the+middle+Pliocene+climate%3B+II%2C+GISS+GCM+Northern+Hemisphere+results&rft.au=Chandler%2C+Mark%3BRind%2C+David%3BThompson%2C+Robert&rft.aulast=Chandler&rft.aufirst=Mark&rft.date=1994-12-01&rft.volume=9&rft.issue=3-4&rft.spage=197&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 - 1995-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cenozoic; changes; general circulation models; GISS GCM; middle Pliocene; models; Neogene; Northern Hemisphere; paleoclimatology; patterns; Pliocene; Tertiary ER - TY - JOUR T1 - Gravity model development for TOPEX/POSEIDON; Joint Gravity Models 1 and 2 AN - 50162897; 1998-074673 AB - The TOPEX/POSEIDON (T/P) prelaunch Joint Gravity Model-1 (JGM-I) and the postlaunch JGM-2 Earth gravitational models have been developed to support precision orbit determination for T/P. Each of these models is complete to degree 70 in spherical harmonics and was computed from a combination of satellite tracking data, satellite altimetry, and surface gravimetry. While improved orbit determination accuracies for T/P have driven the improvements in the models, the models are general in application and also provide an improved geoid for oceanographic computations. The postlaunch model, JGM-2, which includes T/P satellite laser ranging (SLR) and Doppler orbitography and radiopositioning integrated by satellite (DORIS) tracking data, introduces radial orbit errors for T/P that are only 2 cm RMS with the commission errors of the marine geoid for terms to degree 70 being + or - 25 cm. Errors in modeling the nonconservative forces acting on T/P increase the total radial errors to only 3-4 cm RMS, a result much better than premission goals. While the orbit accuracy goal for T/P has been far surpassed, geoid errors still prevent the absolute determination of the ocean dynamic topography for wavelengths shorter than about 2500 km. Only a dedicated gravitational field satellite mission will likely provide the necessary improvement in the geoid. JF - Journal of Geophysical Research AU - Nerem, R S AU - Lerch, F J AU - Marshall, J A AU - Pavlis, E C AU - Putney, B H AU - Tapley, B D AU - Eanes, R J AU - Ries, J C AU - Schutz, B E AU - Shum, C K AU - Watkins, M M AU - Klosko, S M AU - Chan, J C AU - Luthcke, S B AU - Patel, G B AU - Pavlis, N K AU - Williamson, R G AU - Rapp, R H AU - Biancale, R AU - Nouel, F Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 24 EP - 24,447 PB - American Geophysical Union, Washington, DC VL - 99 IS - C12 SN - 0148-0227, 0148-0227 KW - TOPEX KW - gravity field KW - equipotential surface KW - Joint Gravity Model-1 KW - laser ranging KW - Doppler orbitography KW - box-wing model KW - altimetry KW - satellite methods KW - geoid KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50162897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Gravity+model+development+for+TOPEX%2FPOSEIDON%3B+Joint+Gravity+Models+1+and+2&rft.au=Nerem%2C+R+S%3BLerch%2C+F+J%3BMarshall%2C+J+A%3BPavlis%2C+E+C%3BPutney%2C+B+H%3BTapley%2C+B+D%3BEanes%2C+R+J%3BRies%2C+J+C%3BSchutz%2C+B+E%3BShum%2C+C+K%3BWatkins%2C+M+M%3BKlosko%2C+S+M%3BChan%2C+J+C%3BLuthcke%2C+S+B%3BPatel%2C+G+B%3BPavlis%2C+N+K%3BWilliamson%2C+R+G%3BRapp%2C+R+H%3BBiancale%2C+R%3BNouel%2C+F&rft.aulast=Nerem&rft.aufirst=R&rft.date=1994-12-01&rft.volume=99&rft.issue=C12&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JC01376 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 84 N1 - PubXState - DC N1 - Document feature - illus. incl. 11 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - altimetry; box-wing model; Doppler orbitography; equipotential surface; geoid; gravity field; Joint Gravity Model-1; laser ranging; satellite methods; TOPEX DO - http://dx.doi.org/10.1029/94JC01376 ER - TY - JOUR T1 - Aqueous alteration of the Bali CV3 chondrite; evidence from mineralogy, mineral chemistry, and oxygen isotope compositions AN - 50155458; 1995-036721 AB - The mineralogy, petrology and chemistry of altered and unaltered regions of this meteorite are reported using SEM, TEM, CL spectroscopy, with Delta (super 18) O compositions of altered and unaltered regions. The results show that the chondrite has undergone extensive deformation and aqueous alteration on its parent body; deformation occurred prior to aqueous alteration with the formation of secondary Mg-rich saponite, framboidal magnetite and Ca phosphates at << 100 degrees C under highly oxidizing conditions. Na, Ca and P are higher in altered regions than in unaltered indicating redistribution between chondrules and matrix. The post-foliation alteration and deformed olivines in altered and unaltered regions indicates that the aqueous alteration occurred on the parent body and not in a nebular environment. JF - Geochimica et Cosmochimica Acta AU - Keller, Lindsay P AU - Thomas, Kathie L AU - Clayton, Robert N AU - Mayeda, Toshiko K AU - DeHart, John M AU - McKay, David S Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 5589 EP - 5598 PB - Pergamon, Oxford VL - 58 IS - 24 SN - 0016-7037, 0016-7037 KW - silicates KW - alteration KW - stony meteorites KW - oxygen KW - isotopes KW - isotope ratios KW - olivine group KW - O-18/O-16 KW - carbonaceous chondrites KW - aqueous solutions KW - deformation KW - stable isotopes KW - nesosilicates KW - meteorites KW - olivine KW - Bali Meteorite KW - orthosilicates KW - O-17 KW - chondrites KW - chemical composition KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50155458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Aqueous+alteration+of+the+Bali+CV3+chondrite%3B+evidence+from+mineralogy%2C+mineral+chemistry%2C+and+oxygen+isotope+compositions&rft.au=Keller%2C+Lindsay+P%3BThomas%2C+Kathie+L%3BClayton%2C+Robert+N%3BMayeda%2C+Toshiko+K%3BDeHart%2C+John+M%3BMcKay%2C+David+S&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=1994-12-01&rft.volume=58&rft.issue=24&rft.spage=5589&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990252-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1995-01-01 N1 - Number of references - 29 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alteration; aqueous solutions; Bali Meteorite; carbonaceous chondrites; chemical composition; chondrites; deformation; isotope ratios; isotopes; meteorites; nesosilicates; O-17; O-18/O-16; olivine; olivine group; orthosilicates; oxygen; silicates; stable isotopes; stony meteorites DO - http://dx.doi.org/10.1016/0016-7037(94)90252-6 ER - TY - JOUR T1 - Towards managing user-led services AN - 38575765; 1432992 JF - Care in place AU - Begum, Nasa AU - Gillespie-Sells, Kath AU - Rose, Diana AU - Rose, Diana Y1 - 1994/12// PY - 1994 DA - Dec 1994 SP - 284 EP - 285 VL - 1 IS - 3 SN - 0969-2304, 0969-2304 KW - Sociology KW - Ethnic minorities KW - Mental health KW - Social services KW - Community care UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/38575765?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Care+in+place&rft.atitle=Towards+managing+user-led+services&rft.au=Begum%2C+Nasa%3BGillespie-Sells%2C+Kath%3BRose%2C+Diana&rft.aulast=Begum&rft.aufirst=Nasa&rft.date=1994-12-01&rft.volume=1&rft.issue=3&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Care+in+place&rft.issn=09692304&rft_id=info:doi/ LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2013-06-12 N1 - Last updated - 2013-09-16 N1 - SubjectsTermNotLitGenreText - 11928 11949 13521; 2604 11949 13521; 7947 5772 7954; 4427 8122 ER - TY - JOUR T1 - Reflections: The Views of Black Disabled People on Their Lives and Community Care AN - 1761691707; 199504837 JF - Care in Place AU - Butt, Jabeer AU - Butt, Jabeer Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 280 EP - 282 VL - 1 IS - 3 SN - 0969-2304, 0969-2304 KW - article KW - 6148: problems of minority groups UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1761691707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocialservices&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Care+in+Place&rft.atitle=Reflections%3A+The+Views+of+Black+Disabled+People+on+Their+Lives+and+Community+Care&rft.au=Butt%2C+Jabeer%3BBegum%2C+Nasa&rft.aulast=Butt&rft.aufirst=Jabeer&rft.date=1994-12-01&rft.volume=1&rft.issue=3&rft.spage=280&rft.isbn=&rft.btitle=&rft.title=Care+in+Place&rft.issn=09692304&rft_id=info:doi/ LA - English DB - Social Services Abstracts N1 - Date revised - 2016-02-01 N1 - SuppNotes - Edition date: 1994. N1 - Last updated - 2016-09-28 ER - TY - JOUR T1 - Climatic implications of the seasonal variation of upper troposphere water vapor AN - 1524425370; 19555203 AB - Satellite observations indicate that the humidity of the upper troposphere is higher in summer than in winter. We use general circulation model (GCM) simulations to explore the processes that maintain upper troposphere water vapor and determine its seasonal cycle. In the subtropics, drying by Hadley cell subsidence and stratiform condensation is offset primarily by moistening by eddies, with moist convection playing a minor role. Elsewhere, both mean meridional circulation and eddies moisten the upper troposphere and are balanced primarily by stratiform condensation drying. The effect of the seasonal shift of the Hadley cell is limited to latitudes equatorward of 30 degree . At higher latitudes where the largest observed summer moistening occurs, eddy moisture fluxes are primarily responsible despite the eddies being weaker in summer than winter. The same mechanism causes upper level humidity to increase in GCM climate warming simulations. The observed seasonal variation may thus be a good proxy for decadal climate change. This suggests that upper troposphere water vapor feedback is positive at all latitudes, consistent with GCM predictions. JF - Geophysical Research Letters AU - Del Genio, Anthony D AU - Kovari, William AU - Yao, Mao-Sung AD - NASA Goddard Institute for Space Studies, New York, New York. Y1 - 1994/12// PY - 1994 DA - December 1994 SP - 2701 EP - 2704 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 21 IS - 24 SN - 0094-8276, 0094-8276 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts; Sustainability Science Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Convection KW - Seasonal Variations KW - Hadley cells KW - Subsidence KW - Seasonal variations KW - Water vapor KW - Humidity KW - Atmospheric circulation KW - Numerical simulations KW - General circulation models KW - Condensation KW - Prediction KW - Water Vapor KW - Climate change KW - Summer KW - Mean meridional circulation KW - Winter KW - Sulfur dioxide KW - Latitude KW - Marine KW - Climate warming KW - Troposphere KW - Drying KW - Simulation KW - Ocean circulation KW - Oceanic eddies KW - Satellites KW - Moist convection KW - Satellite data KW - Eddies KW - Global warming KW - Q2 09242:Observations and measurements at sea KW - AQ 00006:Sewage KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1524425370?accountid=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=Geophysical+Research+Letters&rft.atitle=Climatic+implications+of+the+seasonal+variation+of+upper+troposphere+water+vapor&rft.au=Del+Genio%2C+Anthony+D%3BKovari%2C+William%3BYao%2C+Mao-Sung&rft.aulast=Del+Genio&rft.aufirst=Anthony&rft.date=1994-12-01&rft.volume=21&rft.issue=24&rft.spage=2701&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F94GL02658 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-05-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Convection; Ocean circulation; Simulation; Drying; Humidity; Troposphere; Oceanic eddies; Atmospheric circulation; Seasonal variations; Satellite data; Numerical simulations; General circulation models; Subsidence; Climate change; Climate warming; Hadley cells; Condensation; Mean meridional circulation; Moist convection; Prediction; Water vapor; Summer; Satellites; Winter; Sulfur dioxide; Latitude; Global warming; Seasonal Variations; Water Vapor; Eddies; Marine DO - http://dx.doi.org/10.1029/94GL02658 ER - TY - JOUR T1 - Risks of radiation cataracts from interplanetary space missions. AN - 77127699; 11538452 AB - Recognition of the human risks from radiation exposure during manned missions in deep space has been fostered by international co-operation; interagency collaboration is facilitating their evaluation. Further co-operation can lead, perhaps by the end of this decade, to an evaluation of one of the three major risks, namely radiation cataractogenesis, sufficient for use in the planning of the manned mission to Mars. JF - Acta astronautica AU - Lett, J T AU - Lee, A C AU - Cox, A B AD - Department of Radiological Health Sciences, Colorado State University, Fort Collins 80523, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 739 EP - 748 VL - 32 IS - 11 SN - 0094-5765, 0094-5765 KW - Protons KW - 0 KW - Aluminum KW - CPD4NFA903 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Non-NASA Center KW - United States KW - Animals KW - Radiation Dosage KW - Humans KW - Disease Models, Animal KW - Europe KW - Mars KW - Rabbits KW - Risk Assessment KW - Radiation Protection -- standards KW - Rats KW - Rats, Inbred F344 KW - Aluminum -- standards KW - International Cooperation KW - United States National Aeronautics and Space Administration KW - Dogs KW - Macaca mulatta KW - Linear Energy Transfer KW - Space Flight KW - Cataract -- epidemiology KW - Solar System KW - Lens, Crystalline -- radiation effects KW - Cataract -- etiology KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77127699?accountid=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=Acta+astronautica&rft.atitle=Risks+of+radiation+cataracts+from+interplanetary+space+missions.&rft.au=Lett%2C+J+T%3BLee%2C+A+C%3BCox%2C+A+B&rft.aulast=Lett&rft.aufirst=J&rft.date=1994-11-01&rft.volume=32&rft.issue=11&rft.spage=739&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-03-19 N1 - Date created - 1996-03-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Space radiation dosimetry. AN - 77115117; 11538447 AB - In this report dosimetric measurements are presented which were performed during the missions Spacelab 1, D 1, Biocosmos 8 and Biocosmos 9. Detector packages consisting of plastic nuclear track detectors, nuclear emulsions and thermoluminescence dosimeters were exposed at different locations inside and outside spacecrafts behind more or less well defined shielding thicknesses. These detector systems which supplement each other in their registration characteristic allow to record all biological relevant portions of the radiation field separately. Dose equivalents for the astronauts have been calculated from the measurements using the quality factors as defined in the old and the new recommendations of the International Commission on Radiation Protection (ICRP). JF - Acta astronautica AU - Reitz, G AD - DLR, Aerospace Medicine, Koln, Germany. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 715 EP - 720 VL - 32 IS - 11 SN - 0094-5765, 0094-5765 KW - Space life sciences KW - manned KW - STS-9 Shuttle Project KW - unmanned KW - STS-61A Shuttle Project KW - Flight Experiment KW - Cosmos 1887 Project KW - short duration KW - Cosmos 2044 Project KW - Thermoluminescent Dosimetry KW - Radiation Dosage KW - Radiometry -- instrumentation KW - Radiation Protection KW - Maximum Allowable Concentration KW - Humans KW - Linear Energy Transfer KW - Neutrons KW - Space Flight -- instrumentation KW - Solar Activity KW - Cosmic Radiation KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115117?accountid=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=Acta+astronautica&rft.atitle=Space+radiation+dosimetry.&rft.au=Reitz%2C+G&rft.aulast=Reitz&rft.aufirst=G&rft.date=1994-11-01&rft.volume=32&rft.issue=11&rft.spage=715&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-18 N1 - Date created - 1998-09-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Toluene removal from air by Dieffenbachia in a closed environment. AN - 77114232; 11540224 AB - Higher plants are likely to play a major role in bioregeneration systems for food, air and water supplies. Plants may also contribute by the removal of toxic organic substances from the air of a closed environment. Dieffenbachia amoena plants were exposed to 0 to 1.2 x 10(6) micrograms toluene m-3 at light intensities of 35 and 90 micromoles m-2 s-1 in sealed chambers. Toluene removal, photosynthesis and respiration were measured. An increased light intensity increased the rate of toluene removal five-fold over the rate at the lower intensity; the kinetics suggest active regulation by the plant. The removal rate saturated at 2700 micrograms toluene h-1 at the lower intensity and failed to saturate at the higher intensity. Toluene exposure inhibited photosynthesis and respiration only transiently and without correlation to toluene concentration. These plants can act as efficient scavengers of toluene in a contaminated environment. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Porter, J R AD - Department of Biological Sciences, Philadelphia College of Pharmacy and Science, PA 19104, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 99 EP - 103 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Carcinogens KW - 0 KW - Toluene KW - 3FPU23BG52 KW - Benzene KW - J64922108F KW - Space life sciences KW - Carcinogens -- metabolism KW - Cell Respiration KW - Benzene -- metabolism KW - Carcinogens -- pharmacokinetics KW - Benzene -- pharmacokinetics KW - Light KW - Plants -- metabolism KW - Toluene -- pharmacokinetics KW - Toluene -- metabolism KW - Photosynthesis -- radiation effects KW - Air Pollution, Indoor -- prevention & control KW - Air Conditioning -- methods KW - Ecological Systems, Closed KW - Photosynthesis -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77114232?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Toluene+removal+from+air+by+Dieffenbachia+in+a+closed+environment.&rft.au=Porter%2C+J+R&rft.aulast=Porter&rft.aufirst=J&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-05 N1 - Date created - 1998-03-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Autolysis and extension of isolated walls from growing cucumber hypocotyls. AN - 77113651; 11540379 AB - Walls isolated from cucumber hypocotyls retain autolytic activities and the ability to extend when placed under the appropriate conditions. To test whether autolysis and extension are related, we treated the walls in various ways to enhance or inhibit long-term wall extension ('creep') and measured autolysis as release of various saccharides from the wall. Except for some non-specific inhibitors of enzymatic activity, we found no correlation between wall extension and wall autolysis. Most notably, autolysis and extension differed strongly in their pH dependence. We also found that exogenous cellulases and pectinases enhanced extension in native walls, but when applied to walls previously inactivated with heat or protease these enzymes caused breakage without sustained extension. In contrast, pretreatment of walls with pectinase or cellulase, followed by boiling in methanol to inactivate the enzymes, resulted in walls with much stronger expansin-mediated extension responses. Crude protein preparations from the digestive tracts of snails enhanced extension of both native and inactivated walls, and these preparations contained expansin-like proteins (assessed by Western blotting). Our results indicate that the extension of isolated cucumber walls does not depend directly on the activity of endogenous wall-bound autolytic enzymes. The results with exogenous enzymes suggest that the hydrolysis of matrix polysaccharides may not induce wall creep by itself, but may act synergistically with expansins to enhance wall extension. JF - Journal of experimental botany AU - Cosgrove, D J AU - Durachko, D M AD - Department of Biology, Pennsylvania State University, University Park 16802, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 1711 EP - 1719 VL - 45 SN - 0022-0957, 0022-0957 KW - Enzyme Inhibitors KW - 0 KW - Glutarates KW - Monosaccharides KW - Plant Proteins KW - Polysaccharides KW - Sulfhydryl Reagents KW - expansin protein, plant KW - 3,3-dimethylglutarate KW - 4839-46-7 KW - Sodium Fluoride KW - 8ZYQ1474W7 KW - Hydrolases KW - EC 3.- KW - Polygalacturonase KW - EC 3.2.1.15 KW - Cellulase KW - EC 3.2.1.4 KW - Pronase KW - EC 3.4.24.- KW - Mercury KW - FXS1BY2PGL KW - Potassium Cyanide KW - MQD255M2ZO KW - Dithiothreitol KW - T8ID5YZU6Y KW - Space life sciences KW - NASA Discipline Plant Biology KW - Non-NASA Center KW - Extracellular Matrix -- metabolism KW - Mercury -- pharmacology KW - Hydrogen-Ion Concentration KW - Cell Wall -- metabolism KW - Pronase -- pharmacology KW - Cell Wall -- drug effects KW - Cellulase -- pharmacology KW - Hydrolysis KW - Potassium Cyanide -- pharmacology KW - Cell Wall -- enzymology KW - Dithiothreitol -- pharmacology KW - Sulfhydryl Reagents -- pharmacology KW - Sodium Fluoride -- pharmacology KW - Enzyme Inhibitors -- pharmacology KW - Monosaccharides -- metabolism KW - Time Factors KW - Polygalacturonase -- pharmacology KW - Autolysis -- enzymology KW - Cucumis sativus -- physiology KW - Hydrolases -- pharmacology KW - Hypocotyl -- growth & development KW - Polysaccharides -- metabolism KW - Hypocotyl -- cytology KW - Hypocotyl -- physiology KW - Cucumis sativus -- cytology KW - Cucumis sativus -- growth & development KW - Plant Proteins -- metabolism KW - Hypocotyl -- enzymology KW - Plant Proteins -- physiology KW - Glutarates -- pharmacology KW - Cucumis sativus -- enzymology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113651?accountid=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+experimental+botany&rft.atitle=Autolysis+and+extension+of+isolated+walls+from+growing+cucumber+hypocotyls.&rft.au=Cosgrove%2C+D+J%3BDurachko%2C+D+M&rft.aulast=Cosgrove&rft.aufirst=D&rft.date=1994-11-01&rft.volume=45&rft.issue=&rft.spage=1711&rft.isbn=&rft.btitle=&rft.title=Journal+of+experimental+botany&rft.issn=00220957&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-04-04 N1 - Date created - 1998-04-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Object-oriented model-driven control. AN - 77113585; 11540199 AB - A monitoring and control subsystem architecture has been developed that capitalizes on the use of model-driven monitoring and predictive control, knowledge-based data representation, and artificial reasoning in an operator support mode. We have developed an object-oriented model of a Controlled Ecological Life Support System (CELSS). The model, based on the NASA Kennedy Space Center CELSS breadboard data, tracks carbon, hydrogen, and oxygen, carbon dioxide, and water. It estimates and tracks resource-related parameters such as mass, energy, and manpower measurements such as growing area required for balance. We are developing an interface with the breadboard systems that is compatible with artificial reasoning. Initial work is being done on use of expert systems and user interface development. This paper presents our approach to defining universally applicable CELSS monitor and control issues, and implementing appropriate monitor and control capability for a particular instance: the KSC CELSS Breadboard Facility. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Drysdale, A AU - McRoberts, M AU - Sager, J AU - Wheeler, R AD - McDonnell Douglas Space Systems, Kennedy Space Center, FL 32815, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 313 EP - 322 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Carbon Dioxide KW - 142M471B3J KW - Space life sciences KW - NASA Center KSC KW - NASA Discipline Life Support Systems KW - Solanum tuberosum -- growth & development KW - Animals KW - Systems Integration KW - Environment, Controlled KW - Humans KW - Decision Making, Computer-Assisted KW - Carbon Dioxide -- metabolism KW - Solanum tuberosum -- metabolism KW - Environmental Monitoring -- methods KW - Photosynthesis -- physiology KW - Environmental Monitoring -- instrumentation KW - Computer Simulation KW - Life Support Systems -- instrumentation KW - Expert Systems KW - Biomass KW - Models, Biological KW - Ecological Systems, Closed UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113585?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Object-oriented+model-driven+control.&rft.au=Drysdale%2C+A%3BMcRoberts%2C+M%3BSager%2C+J%3BWheeler%2C+R&rft.aulast=Drysdale&rft.aufirst=A&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=313&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-10 N1 - Date created - 1998-03-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - HZE particle effects in space. AN - 77113297; 11538453 AB - Among the various particulate components of ionizing radiation in space, heavy ions (the so-called HZE particles) have been of special concern to radiobiologists. To understand the ways by which HZE particles of cosmic radiation interact with biological systems, methods have been developed to precisely localize the trajectory of an HZE particle relative to the biological object and to correlate the physical data of the particle with the biological effects observed along its path. In a variety of test systems, injuries were traced back to the traversal of a single HZE particle, such as somatic mutations, and chromosomal aberrations in plant seeds, development disturbances and malformations in insect and salt shrimp embryos, or cell death in bacterial spores. In the latter case, a long-ranging killing effect around the particle's track was observed. Whereas, from spaceflight experiments, substantial infomation has been accumulated on single HZE particle effects in resting systems and in a few embryonic systems, there is a paucity of data on cosmic radiation effects in whole tissues or animals, especially mammalians. JF - Acta astronautica AU - Horneck, G AD - DLR, Institute of Aerospace Medicine, Koln, Germany. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 749 EP - 755 VL - 32 IS - 11 SN - 0094-5765, 0094-5765 KW - Space life sciences KW - manned KW - unmanned KW - Flight Experiment KW - Cosmos Project KW - short duration KW - Apollo Project KW - STS Shuttle Project KW - Animals KW - Bacillus subtilis KW - Embryo, Nonmammalian -- radiation effects KW - Humans KW - Mice KW - Eye -- radiation effects KW - Insects KW - Rats KW - Relative Biological Effectiveness KW - Radiometry KW - Artemia KW - Seeds -- radiation effects KW - Weightlessness KW - Plants -- radiation effects KW - Space Flight -- instrumentation KW - Cosmic Radiation KW - Extraterrestrial Environment KW - Radiobiology -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113297?accountid=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=Acta+astronautica&rft.atitle=HZE+particle+effects+in+space.&rft.au=Horneck%2C+G&rft.aulast=Horneck&rft.aufirst=G&rft.date=1994-11-01&rft.volume=32&rft.issue=11&rft.spage=749&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-22 N1 - Date created - 1998-09-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Rapid assessment of radiobiological doses for terrestrial and interplanetary space missions. AN - 77113246; 11538449 AB - This paper presents the doses levels expected in orbits in chart form, covering the range 300-800 km of altitude and 0-90 degrees of inclination behind shieldings similar to the Hermes spacecraft and the EVA spacesuit matter distributions. These charts allow users to rapidly find the radiobiological dose received in the most critical organs of the human body either in normal situations or during a large solar event. Outside the magnetosphere, during interplanetary or lunar missions, when the dose received during crossing of the radiation belts become negligible, the dose is due to galactic cosmic rays (GCR) and solar flares. The correct radiobiological assessment of the components of this radiation field becomes a major problem. On the Moon a permanent ground-based station can be shielded by lunar materials against meteoroids and radiations. The radiobiological hazard, essentially linked to the solar flare risk during the transfer phase and the extra-station activities, may be solved by mission planning. For interplanetary flights the problem comes from both increased risk of solar events and from the continuous exposure to GCR. These energetic particles cannot be easily stopped by shieldings; cost considerations imply that more effective materials must be used. Impact on the vehicle design and the mission planning is important. JF - Acta astronautica AU - Melkonian, G AU - Bourrieau, J AD - Dassault Aviation, Saint-Cloud, France. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 721 EP - 730 VL - 32 IS - 11 SN - 0094-5765, 0094-5765 KW - Space life sciences KW - Radiation Dosage KW - South America KW - Magnetics KW - Maximum Allowable Concentration KW - Humans KW - Extraterrestrial Environment KW - Stochastic Processes KW - Lens, Crystalline -- radiation effects KW - Eye -- radiation effects KW - Gonads -- radiation effects KW - Atlantic Ocean KW - Hematopoietic System -- radiation effects KW - Extravehicular Activity KW - Solar Activity KW - Radiation Protection KW - Cosmic Radiation KW - Space Flight KW - Space Suits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113246?accountid=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=Acta+astronautica&rft.atitle=Rapid+assessment+of+radiobiological+doses+for+terrestrial+and+interplanetary+space+missions.&rft.au=Melkonian%2C+G%3BBourrieau%2C+J&rft.aulast=Melkonian&rft.aufirst=G&rft.date=1994-11-01&rft.volume=32&rft.issue=11&rft.spage=721&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-18 N1 - Date created - 1998-09-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Cosmic dosimetry using TLD aboard spacecrafts of the "Cosmos" series. AN - 77112909; 11538450 AB - Thermoluminescent (TL) detectors were used for dosimetric investigations on the outer surface as well as inside Soviet spacecrafts of the "Cosmos" series. At the outer surface, ultrathin TL detectors, based on CaF2-PTFE and LiF, were arranged in special stacks and exposed to unshielded cosmic radiation. The strong decrease of dose within a few mg/cm2 demonstrates that weakly penetrating radiation is dominating in the radiation field under investigation. On the basis of glow curve analysis of LiF thermoluminescent detectors it could be shown, that the high doses are caused by electrons. JF - Acta astronautica AU - Hubner, K AU - Schmidt, P AU - Fellinger, J AD - Dresden University of Technology, Institute of Radiation Protection Physics, Germany. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 731 EP - 734 VL - 32 IS - 11 SN - 0094-5765, 0094-5765 KW - Protons KW - 0 KW - Deuterium KW - AR09D82C7G KW - Space life sciences KW - unmanned KW - Flight Experiment KW - Cosmos Project KW - short duration KW - Radiation Dosage KW - Electrons KW - Gamma Rays KW - Radiation Monitoring -- instrumentation KW - Thermoluminescent Dosimetry KW - Space Flight -- instrumentation KW - Spacecraft -- instrumentation KW - Cosmic Radiation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112909?accountid=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=Acta+astronautica&rft.atitle=Cosmic+dosimetry+using+TLD+aboard+spacecrafts+of+the+%22Cosmos%22+series.&rft.au=Hubner%2C+K%3BSchmidt%2C+P%3BFellinger%2C+J&rft.aulast=Hubner&rft.aufirst=K&rft.date=1994-11-01&rft.volume=32&rft.issue=11&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-18 N1 - Date created - 1998-09-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Lunar base CELSS design and analysis. AN - 77112748; 11540172 AB - This paper describes the conceptual development of a hybrid biological-physical/chemical (P/C) life support system model for a lunar outpost. It presents steps that lead to loop closure and determines mass flow characteristics for an inedible biomass enzyme reactor and an activated sludge bioreactor. Computer modeling techniques were used to determine that the cellulose reactor has the design capabilities to provide significant increases in the plant harvest index. Activated sludge was found to fit design demands for a small, continuous-flow, steady-state system. Systems analysis and component sizing for these two bioreactors and information regarding supporting bioregenerative and physical/chemical components are presented. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Sirko, R J AU - Smith, G C AU - Hamlin, L A AU - Tazawa, R AU - Uchida, T AU - Suzuki, S AD - McDonnell Douglas Aerospace, Huntington Beach, CA, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 105 EP - 112 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Sewage KW - 0 KW - Waste Products KW - Cellulose KW - 9004-34-6 KW - Cellulase KW - EC 3.2.1.4 KW - Space life sciences KW - Equipment Design KW - Cellulose -- metabolism KW - Systems Integration KW - Extraterrestrial Environment KW - Cellulase -- metabolism KW - Facility Design and Construction KW - Biomass KW - Environmental Microbiology KW - Computer Simulation KW - Moon KW - Life Support Systems -- instrumentation KW - Bioreactors KW - Waste Management -- methods KW - Ecological Systems, Closed UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112748?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Lunar+base+CELSS+design+and+analysis.&rft.au=Sirko%2C+R+J%3BSmith%2C+G+C%3BHamlin%2C+L+A%3BTazawa%2C+R%3BUchida%2C+T%3BSuzuki%2C+S&rft.aulast=Sirko&rft.aufirst=R&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-05 N1 - Date created - 1998-03-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Specific effects of irradiance and CO2 concentration doublings on productivity and mineral content in lettuce. AN - 77112252; 11540192 AB - Experiments in growth chambers with controlled atmosphere were performed to compare the effects on the productivity of two treatments stimulating photosynthesis: the doubling of CO2 concentration, the doubling of irradiance; the combining of both was also tested. A large effect of light was noticed: (i) the accumulation of carbon was, contrarily to CO2 effect, amplified within time, and led to the most important dry matter production. (ii) the specific leaf weight was about two-fold increased. (iii) the nitrate content was 2-3 fold less. A significant positive effect of CO2 was detected on the fresh biomass production and the iron content of lettuce. A synergy was observed on dry matter production by the interaction of the two factors. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Chagvardieff, P AU - d'Aletto, T AU - Andre, M AD - Commissariat a l'Energie Atomique, Departement de Physiologie Vegetale et Ecosystemes, Saint-Paul-lez-Durance, France. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 269 EP - 275 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Minerals KW - 0 KW - Carbon Dioxide KW - 142M471B3J KW - Nitrogen KW - N762921K75 KW - Space life sciences KW - Dose-Response Relationship, Drug KW - Photosynthesis -- drug effects KW - Photosynthesis -- radiation effects KW - Dose-Response Relationship, Radiation KW - Nitrogen -- metabolism KW - Ecological Systems, Closed KW - Lettuce -- radiation effects KW - Environment, Controlled KW - Lettuce -- growth & development KW - Light KW - Lettuce -- drug effects KW - Carbon Dioxide -- metabolism KW - Biomass KW - Minerals -- metabolism KW - Carbon Dioxide -- pharmacology KW - Lettuce -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112252?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Specific+effects+of+irradiance+and+CO2+concentration+doublings+on+productivity+and+mineral+content+in+lettuce.&rft.au=Chagvardieff%2C+P%3Bd%27Aletto%2C+T%3BAndre%2C+M&rft.aulast=Chagvardieff&rft.aufirst=P&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=269&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-10 N1 - Date created - 1998-03-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of sublethal irradiation with helium ions (300 MeV/nucleon) on basic hematological parameters of mice. AN - 77112167; 11538454 AB - The aim of the experiment was to obtain new knowledge on the biological effectiveness of high-energy (300 MeV/nucleon) helium ions, which represent a part of the spectrum of cosmic rays. Male (CBA x C57BL)F1 mice, 4 months old, were exposed to a dose of 4 Gy helium ions (exposure rate 0.05 Gy/min). As a comparative standard irradiation the same dose of 4 Gy of 137Cs gamma-rays (exposure rate 0.07 Gy/min) was used. Material sampling was performed 6-8 h, 4 days and 9 days after irradiation for both experimental groups mentioned above. There were 7 animals in each group including the control group of non-irradiated mice. Eight basic hematological parameters of peripheral blood, bone marrow, spleen and thymus were studied. On day 4 after the irradiation with helium ions, the values of leukocyte counts in peripheral blood, bone marrow cellularity and spleen cellularity were reduced to about 10% of the respective control values while the decline after irradiation with gamma-rays amounted to about 50%. These and other results presented reflect a high relative biological effectiveness of 300 MeV/nucleon helium ions. JF - Acta astronautica AU - Hofer, M AU - Viklicka, S AU - Gerasimenko, V N AU - Kabachenko, A N AD - Institute of Biophysics, Czechoslovak Academy of Sciences, Brno, Czech Republic. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 757 EP - 760 VL - 32 IS - 11 SN - 0094-5765, 0094-5765 KW - Ions KW - 0 KW - Helium KW - 206GF3GB41 KW - Space life sciences KW - Animals KW - Radiation Dosage KW - Granulocytes -- radiation effects KW - Spleen -- radiation effects KW - Spleen -- cytology KW - Erythrocytes -- radiation effects KW - Mice KW - Relative Biological Effectiveness KW - Leukocytes -- radiation effects KW - Thymus Gland -- radiation effects KW - Lymphocytes -- radiation effects KW - Time Factors KW - Male KW - Gamma Rays KW - Cosmic Radiation KW - Hematopoietic System -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112167?accountid=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=Acta+astronautica&rft.atitle=Effects+of+sublethal+irradiation+with+helium+ions+%28300+MeV%2Fnucleon%29+on+basic+hematological+parameters+of+mice.&rft.au=Hofer%2C+M%3BViklicka%2C+S%3BGerasimenko%2C+V+N%3BKabachenko%2C+A+N&rft.aulast=Hofer&rft.aufirst=M&rft.date=1994-11-01&rft.volume=32&rft.issue=11&rft.spage=757&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-22 N1 - Date created - 1998-09-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CONF T1 - Radiation effects and dosimetry and protection guidelines. A selection of papers presented at the 9th IAA Man-in-Space Symposium, Cologne, Germany, 17-21 June 1991. AN - 77112131; 11538448 JF - Acta astronautica Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 715 EP - 766 VL - 32 IS - 11 KW - Space life sciences KW - NASA Discipline Radiation Health KW - Non-NASA Center KW - Radiation Dosage KW - Animals KW - Relative Biological Effectiveness KW - Radiometry KW - Humans KW - Aerospace Medicine KW - Dose-Response Relationship, Radiation KW - Cosmic Radiation KW - Space Flight -- standards KW - Radiation Effects KW - Radiation Monitoring KW - Weightlessness KW - Radiation Protection -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112131?accountid=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=conference&rft.jtitle=Acta+astronautica&rft.atitle=Radiation+effects+and+dosimetry+and+protection+guidelines.+A+selection+of+papers+presented+at+the+9th+IAA+Man-in-Space+Symposium%2C+Cologne%2C+Germany%2C+17-21+June+1991.&rft.au=&rft.aulast=&rft.aufirst=Elena&rft.date=2014-09-01&rft.volume=13&rft.issue=3&rft.spage=265&rft.isbn=&rft.btitle=&rft.title=The+International+Journal+of+Technology+Management+%26+Sustainable+Development&rft.issn=14742748&rft_id=info:doi/10.1386%2Ftmsd.13.3.265_1 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-18 N1 - Date created - 1998-09-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Analysis of remote reflection spectroscopy to monitor plant health. AN - 77111492; 11540181 AB - Remote non-contact reflection spectroscopy is examined as a method for detecting stress in Controlled Ecological Life Support System CELSS type crops. Lettuce (Lactuca [correction of Latuca] Sativa L. cv. Waldmans Green) and wheat (Triticum Aestivum L. cv. Yecora Rojo) were grown hydroponically. Copper and zinc treatments provided toxic conditions. Nitrogen, phosphorous, and potassium treatments were used for deficiency conditions. Water stress was also induced in test plants. Reflectance spectra were obtained in the visible and near infrared (400nm to 2600nm) wavebands. Numerous effects of stress conditions can be observed in the collected spectra and this technique appears to have promise as a remote monitor of plant health, but significant research remains to be conducted to realize the promise. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Woodhouse, R AU - Heeb, M AU - Berry, W AU - Hoshizaki, T AU - Wood, M AD - Agave Analytics, Los Angeles, CA 90045, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 199 EP - 202 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Water KW - 059QF0KO0R KW - Copper KW - 789U1901C5 KW - Zinc KW - J41CSQ7QDS KW - Nitrogen KW - N762921K75 KW - Space life sciences KW - Plant Leaves -- metabolism KW - Water -- metabolism KW - Algorithms KW - Plant Leaves -- growth & development KW - Nitrogen -- metabolism KW - Plant Diseases KW - Life Support Systems KW - Lettuce -- physiology KW - Hydroponics -- methods KW - Triticum -- physiology KW - Lettuce -- growth & development KW - Spectroscopy, Near-Infrared -- methods KW - Triticum -- growth & development KW - Triticum -- metabolism KW - Ecological Systems, Closed KW - Lettuce -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111492?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Analysis+of+remote+reflection+spectroscopy+to+monitor+plant+health.&rft.au=Woodhouse%2C+R%3BHeeb%2C+M%3BBerry%2C+W%3BHoshizaki%2C+T%3BWood%2C+M&rft.aulast=Woodhouse&rft.aufirst=R&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=199&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-09 N1 - Date created - 1998-03-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiation protection guidelines for space activities. AN - 77110766; 11538451 AB - At the beginning of the space age the dangers of hurtling into space were considerable. Despite this fact, radiation risks were examined in the U.S.S.R. and the U.S.A. and recommendations were made to limit the exposure of the crews to radiation. To date the radiation exposures of crews on missions in low-Earth orbits have been low. Now that missions in low-Earth orbit are becoming longer in duration and new missions into deep space are being considered, radiation protection guidelines become more important. Recently the estimates of the risks of radiation-induced cancer have been increased and new guidelines on radiation exposure limits for crew members must be developed. For deep space missions the guidelines take into account the risks posed by heavy ions. Unfortunately, knowledge about these risks is insufficient. If the new risk estimates are applied, current career dose limits may have to be reduced by a factor of two. JF - Acta astronautica AU - Fry, R J AD - Biology Division, Oak Ridge National Laboratory, TN 37831-8077, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 735 EP - 737 VL - 32 IS - 11 SN - 0094-5765, 0094-5765 KW - Space life sciences KW - Radiation Dosage KW - Age Factors KW - Maximum Allowable Concentration KW - Humans KW - Extraterrestrial Environment KW - Risk Assessment KW - Models, Theoretical KW - Space Flight -- standards KW - Neoplasms, Radiation-Induced KW - Radiation Protection -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110766?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Learning+class+descriptions+from+a+data+base+of+spectral+reflectance+of+soil+samples&rft.au=Kimes%2C+D+S%3BIrons%2C+J+R%3BLevine%2C+E+R%3BHorning%2C+N+A&rft.aulast=Kimes&rft.aufirst=D&rft.date=1993-02-01&rft.volume=43&rft.issue=2&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-18 N1 - Date created - 1998-09-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Atmospheric dynamics and bioregenerative technologies in a soil-based ecological life support system: initial results from Biosphere 2. AN - 77110517; 11540215 AB - Biosphere 2 is the first man-made, soil-based, bioregenerative life support system to be developed and tested. The utilization and amendment of local space resources, e.g. martian soil or lunar regolith, for agricultural and other purposes will be necessary if we are to minimize the requirement for Earth materials in the creation of long-term off-planet bases and habitations. Several of the roles soil plays in Biosphere 2 are 1) for air purification 2) as a key component in created wetland systems to recycle human and animal wastes and 3) as nutrient base for a sustainable agricultural cropping program. Initial results from the Biosphere 2 closure experiment are presented. These include the accelerated cycling rates due to small reservoir sizes, strong diurnal and seasonal fluxes in atmospheric CO2, an unexpected and continuing decline in atmospheric oxygen, overall maintenance of low levels of trace gases, recycling of waste waters through biological regeneration systems, and operation of an agriculture designed to provide diverse and nutritionally adequate diets for the crew members. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Nelson, M AU - Dempster, W AU - Alvarez-Romo, N AU - MacCallum, T AD - Space Biospheres Ventures, Oracle, AZ 85623, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 417 EP - 426 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Air Pollutants KW - 0 KW - Gases KW - Soil KW - Carbon Dioxide KW - 142M471B3J KW - Oxygen KW - S88TT14065 KW - Space life sciences KW - Ecosystem KW - Crops, Agricultural -- growth & development KW - Agriculture -- methods KW - Photosynthesis KW - Gases -- analysis KW - Humans KW - Food Supply KW - Space Simulation KW - Oxygen -- analysis KW - Waste Management -- methods KW - Life Support Systems KW - Carbon Dioxide -- analysis KW - Air Conditioning -- methods KW - Ecological Systems, Closed UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110517?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Atmospheric+dynamics+and+bioregenerative+technologies+in+a+soil-based+ecological+life+support+system%3A+initial+results+from+Biosphere+2.&rft.au=Nelson%2C+M%3BDempster%2C+W%3BAlvarez-Romo%2C+N%3BMacCallum%2C+T&rft.aulast=Nelson&rft.aufirst=M&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-11 N1 - Date created - 1998-03-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - CO2 crop growth enhancement and toxicity in wheat and rice. AN - 77110463; 11540191 AB - The effects of elevated CO2 on plant growth are reviewed and the implications for crop yields in regenerative systems are discussed. There is considerable theoretical and experimental evidence indicating that the beneficial effects of CO2 are saturated at about 0.12% CO2 in air. However, CO2 can easily rise above 1% of the total gas in a closed system, and we have thus studied continuous exposure to CO2 levels as high as 2%. Elevating CO2 from 340 to 1200 micromoles mol-1 can increase the seed yield of wheat and rice by 30 to 40%; unfortunately, further CO2 elevation to 2500 micromoles mol-1 (0.25%) has consistently reduced yield by 25% compared to plants grown at 1200 micromoles mol-1; fortunately, there was only an additional 10% decrease in yield as the CO2 level was further elevated to 2% (20,000 micromoles mol-1). Yield increases in both rice and wheat were primarily the result of increased number of heads per m2, with minor effects on seed number per head and seed size. Yield increases were greatest in the highest photosynthetic photon flux. We used photosynthetic gas exchange to analyze CO2 effects on radiation interception, canopy quantum yield, and canopy carbon use efficiency. We were surprised to find that radiation interception during early growth was not improved by elevated CO2. As expected, CO2 increased quantum yield, but there was also a small increase in carbon use efficiency. Super-optimal CO2 levels did not reduce vegetative growth, but decreased seed set and thus yield. The reduced seed set is not visually apparent until final yield is measured. The physiological mechanism underlying CO2 toxicity is not yet known, but elevated CO2 levels (0.1 to 1% CO2) increase ethylene synthesis in some plants and ethylene is a potent inhibitor of seed set in wheat. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Bugbee, B AU - Spanarkel, B AU - Johnson, S AU - Monje, O AU - Koerner, G AD - Plants, Soils, and Biometeorology Department, Utah State University, Logan 84322-4820, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 257 EP - 267 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Ethylenes KW - 0 KW - Plant Growth Regulators KW - Water KW - 059QF0KO0R KW - Carbon Dioxide KW - 142M471B3J KW - ethylene KW - 91GW059KN7 KW - Ribulose-Bisphosphate Carboxylase KW - EC 4.1.1.39 KW - Space life sciences KW - Non-NASA Center KW - NASA Discipline Life Support Systems KW - Plant Transpiration -- physiology KW - Water -- metabolism KW - Seeds -- physiology KW - Dose-Response Relationship, Drug KW - Photosynthesis -- drug effects KW - Plant Growth Regulators -- metabolism KW - Light KW - Seeds -- growth & development KW - Biomass KW - Seeds -- drug effects KW - Ethylenes -- metabolism KW - Ecological Systems, Closed KW - Oryza -- metabolism KW - Temperature KW - Carbon Dioxide -- metabolism KW - Triticum -- growth & development KW - Oryza -- enzymology KW - Triticum -- drug effects KW - Oryza -- drug effects KW - Environment, Controlled KW - Oryza -- growth & development KW - Triticum -- metabolism KW - Carbon Dioxide -- pharmacology KW - Ribulose-Bisphosphate Carboxylase -- metabolism KW - Triticum -- enzymology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110463?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=CO2+crop+growth+enhancement+and+toxicity+in+wheat+and+rice.&rft.au=Bugbee%2C+B%3BSpanarkel%2C+B%3BJohnson%2C+S%3BMonje%2C+O%3BKoerner%2C+G&rft.aulast=Bugbee&rft.aufirst=B&rft.date=1993-02-01&rft.volume=9&rft.issue=&rft.spage=345&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 - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-10 N1 - Date created - 1998-03-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Optical sensors for monitoring and control of plant growth systems. AN - 77110411; 11540186 AB - Optical chemical sensors have been developed for monitoring several parameters relevant to plant growth systems. These sensors utilize porous polymer and porous glass as the sensing element, and optical fiber input/output lines connected to a custom optoelectronic interface. Present in the sensing element are immobilized colorimetric indicators, which react with the analyte to be sensed. This reaction results in a change in the optical properties of the sensor. These sensors are particularly suited to in-situ monitoring of nutrient solution parameters and atmospheric trace contaminants in life support and plant growth systems. Sensors for monitoring pH, ammonia, and ethylene will be discussed. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Tabacco, M B AU - Zhou, Q AU - DiGiuseppe, T G AD - GEO-CENTERS, Newton Centre, MA 02159, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 223 EP - 226 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Culture Media KW - 0 KW - Ethylenes KW - Plant Growth Regulators KW - Polymers KW - Ammonia KW - 7664-41-7 KW - Carbon Monoxide KW - 7U1EE4V452 KW - ethylene KW - 91GW059KN7 KW - Space life sciences KW - Equipment Design KW - Carbon Monoxide -- analysis KW - Ammonia -- analysis KW - Environment, Controlled KW - Hydrogen-Ion Concentration KW - Plant Growth Regulators -- analysis KW - Culture Media -- analysis KW - Glass KW - Biomass KW - Ethylenes -- analysis KW - Optical Fibers KW - Signal Processing, Computer-Assisted KW - Plant Development KW - Fiber Optic Technology -- instrumentation KW - Life Support Systems -- instrumentation KW - Hydroponics -- instrumentation KW - Environmental Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110411?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Optical+sensors+for+monitoring+and+control+of+plant+growth+systems.&rft.au=Tabacco%2C+M+B%3BZhou%2C+Q%3BDiGiuseppe%2C+T+G&rft.aulast=Tabacco&rft.aufirst=M&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-09 N1 - Date created - 1998-03-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Controlled Ecological Life Support Systems (CELSS) flight experimentation. AN - 77109125; 11540219 AB - The NASA CELSS program has the goal of developing life support systems for humans in space based on the use of higher plants. The program has supported research at universities with a primary focus of increasing the productivity of candidate crop plants. To understand the effects of the space environment on plant productivity, the CELSS Test Facility (CTF) has been been conceived as an instrument that will permit the evaluation of plant productivity on Space Station Freedom. The CTF will maintain specific environmental conditions and collect data on gas exchange rates and biomass accumulation over the growth period of several crop plants grown sequentially from seed to harvest. The science requirements of the CTF will be described, as will current design concepts and specific technology requirements for operation in micro-gravity. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kliss, M AU - MacElroy, R AU - Borchers, B AU - Farrance, M AU - Nelson, T AU - Blackwell, C AU - Yendler, B AU - Tremor, J AD - Advanced Life Support Division, GE Government Services, Moffett Field, CA 94035, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 61 EP - 69 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Culture Media KW - 0 KW - Space life sciences KW - NASA Center ARC KW - Non-NASA Center KW - NASA Discipline Life Support Systems KW - United States KW - Germination KW - Evaluation Studies as Topic KW - Environmental Pollution -- prevention & control KW - Equipment Design KW - Systems Integration KW - United States National Aeronautics and Space Administration KW - Space Flight KW - Water Supply KW - Lighting KW - Automatic Data Processing KW - Weightlessness KW - Crops, Agricultural -- growth & development KW - Spacecraft -- instrumentation KW - Life Support Systems -- instrumentation KW - Facility Design and Construction KW - Ecological Systems, Closed UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109125?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Controlled+Ecological+Life+Support+Systems+%28CELSS%29+flight+experimentation.&rft.au=Kliss%2C+M%3BMacElroy%2C+R%3BBorchers%2C+B%3BFarrance%2C+M%3BNelson%2C+T%3BBlackwell%2C+C%3BYendler%2C+B%3BTremor%2C+J&rft.aulast=Kliss&rft.aufirst=M&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=61&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-03-04 N1 - Date created - 1998-03-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Recent results of the joint ESA-DARA/IBMP experiments Biokosmos "Seeds". AN - 77108822; 11538455 AB - Comparison of experimental data obtained from short (SDEF) and long duration exposure flights (LDEF) have recently led to results which will be significant for longer and/or repeated sojourn of man in space. Under orbital conditions biological stress and damage are induced in test subjects by cosmic radiation, especially the high energetic, densely ionizing component of heavy ions. Plant seeds were successful model systems for a biotest in studying the physiological damages and mutagenic effect caused by ionizing cosmic radiation in particular stem cells. Dosimetrically, the subdivision into charge- and Let-groups reveals the contribution of the intermediate group (LET = 350-1000 MeV/cm) due to the medium heavy ions (Z = 6-10). Their relative contribution increases with the lower inclination of the orbit of LDEF-1; on the other hand, the total fluence becomes higher with longer duration of the flight. The observed endpoints of the biological radiation damage hint at a correlation with particle dose rate rather than with the dose; additionally, data on shielding effects inside and outside the space craft and its exposure were gained from the different SDEF- and LDEF-missions. JF - Acta astronautica AU - Kranz, A R AU - Gartenbach, K E AU - Shevchenko, V V AU - Schopper, E AU - Baican, B AU - Schott, J U AU - Seltz, R AU - Heilmann, C AU - Dudkin, D AU - Nefedov, N AU - Potapov, Y AD - Botanical Institute, J.W. Goethe University, Frankfurt am Main, Germany. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 761 EP - 766 VL - 32 IS - 11 SN - 0094-5765, 0094-5765 KW - Silver Compounds KW - 0 KW - silver chloride KW - MWB0804EO7 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - short duration KW - long duration KW - LDEF Project KW - Cosmos 2044 Project KW - Relative Biological Effectiveness KW - Extraterrestrial Environment KW - Dose-Response Relationship, Radiation KW - Linear Energy Transfer KW - Radiation Monitoring -- instrumentation KW - Mutagenesis KW - Germination -- radiation effects KW - Arabidopsis -- genetics KW - Space Flight -- instrumentation KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Arabidopsis -- radiation effects KW - Seeds -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77108822?accountid=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=Acta+astronautica&rft.atitle=Recent+results+of+the+joint+ESA-DARA%2FIBMP+experiments+Biokosmos+%22Seeds%22.&rft.au=Kranz%2C+A+R%3BGartenbach%2C+K+E%3BShevchenko%2C+V+V%3BSchopper%2C+E%3BBaican%2C+B%3BSchott%2C+J+U%3BSeltz%2C+R%3BHeilmann%2C+C%3BDudkin%2C+D%3BNefedov%2C+N%3BPotapov%2C+Y&rft.aulast=Kranz&rft.aufirst=A&rft.date=1994-11-01&rft.volume=32&rft.issue=11&rft.spage=761&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-22 N1 - Date created - 1998-09-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - An initiation-promotion model of tumour prevalence from high-charge and energy radiations. AN - 77108468; 11541517 AB - A repair/misrepair kinetic model for multiple radiation-induced lesions (mutation inactivation) is coupled to a two-mutation model of initiation-promotion in tissue to provide a parametric description of tumour prevalence in the mouse Harderian gland from high-energy and charge radiations. Track-structure effects are considered using an action-cross section model. Dose-response curves are described for gamma rays and relativistic ions, and good agreement with experiment is found. The effects of nuclear fragmentation are also considered for high-energy proton and alpha-particle exposures. The model described provides a parametric description of age-dependent cancer induction for a wide range of radiation fields. Radiosensitivity parameters found in the model for an initiation mutation (sigma 0 = 7.6 x 10(-10) cm2 and D0 = 148.0 Gy) are somewhat different than previously observed for neoplastic transformation of C3H10T1/2 cell cultures (sigma 0 = 0.7 x 10(-10) cm2 and D0 = 117.0 Gy). We consider the two hypotheses that radiation acts solely as an initiator or as both initiator and promoter and make model calculations for fractionation exposures from gamma rays and relativistic Fe ions. For fractionated Fe exposures, an inverse-dose-rate effect is provided by a promotion hypothesis with an increase of 30% or more, dependent on the dose level and fractionation schedule, using a mutation rate for promotion similar to that of single-gene mutations. JF - Physics in medicine and biology AU - Cucinotta, F A AU - Wilson, J W AD - NASA Langley Research Center, Hampton, VA 23681-0001, USA. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 1811 EP - 1831 VL - 39 IS - 11 SN - 0031-9155, 0031-9155 KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Radiation Health KW - Animals KW - Disease Models, Animal KW - Mice KW - Dose-Response Relationship, Radiation KW - Mutagenesis KW - Mice, Inbred Strains KW - Heavy Ions KW - Kinetics KW - Incidence KW - Cell Line, Transformed KW - Time Factors KW - Mutation KW - Female KW - Prevalence KW - Neoplasms, Radiation-Induced -- epidemiology KW - Harderian Gland -- radiation effects KW - Models, Biological KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77108468?accountid=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=Physics+in+medicine+and+biology&rft.atitle=An+initiation-promotion+model+of+tumour+prevalence+from+high-charge+and+energy+radiations.&rft.au=Cucinotta%2C+F+A%3BWilson%2C+J+W&rft.aulast=Cucinotta&rft.aufirst=F&rft.date=1994-11-01&rft.volume=39&rft.issue=11&rft.spage=1811&rft.isbn=&rft.btitle=&rft.title=Physics+in+medicine+and+biology&rft.issn=00319155&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-04-11 N1 - Date created - 1999-04-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A self-consistent model of subduction zone crustal deformation incorporating viscoelastic flow, gravitational relaxation and steady-state and transient fault creep-at-depth effects AN - 52852248; 1996-034047 JF - Eos, Transactions, American Geophysical Union AU - Cohen, Steven C AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 177 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Alaska earthquake 1964 KW - subduction zones KW - uplifts KW - mechanism KW - relaxation KW - deformation KW - viscoelasticity KW - Southern Alaska KW - models KW - Kenai Peninsula KW - creep KW - steady-state processes KW - applications KW - Alaska KW - tectonics KW - earthquakes KW - seismotectonics KW - faults KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52852248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+self-consistent+model+of+subduction+zone+crustal+deformation+incorporating+viscoelastic+flow%2C+gravitational+relaxation+and+steady-state+and+transient+fault+creep-at-depth+effects&rft.au=Cohen%2C+Steven+C%3BAnonymous&rft.aulast=Cohen&rft.aufirst=Steven&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Alaska; Alaska earthquake 1964; applications; creep; deformation; earthquakes; faults; Kenai Peninsula; mechanism; models; relaxation; seismotectonics; Southern Alaska; steady-state processes; subduction zones; tectonics; United States; uplifts; viscoelasticity ER - TY - JOUR T1 - Long-period variations in UT1 and gravitational field caused by mantle anelasticity AN - 52851374; 1996-034080 JF - Eos, Transactions, American Geophysical Union AU - Zhu, Y Z AU - Chao, B F AU - Shum, C K AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 181 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - tides KW - gravity field KW - tectonophysics KW - Earth tides KW - mantle KW - anelasticity KW - variations KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52851374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Long-period+variations+in+UT1+and+gravitational+field+caused+by+mantle+anelasticity&rft.au=Zhu%2C+Y+Z%3BChao%2C+B+F%3BShum%2C+C+K%3BAnonymous&rft.aulast=Zhu&rft.aufirst=Y&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anelasticity; Earth tides; gravity field; mantle; tectonophysics; tides; variations ER - TY - JOUR T1 - GPS and ISAR; tools for continuous surface strain mapping in time and space AN - 52818380; 1996-061180 JF - Proceedings of the ... Joint Meeting of the U.J.N.R. Panel on Earthquake Prediction Technology AU - Baltuck, M AU - LaBrecque, J L AU - Paylor, E D AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 403 EP - 428 PB - Ministry of Construction, Geographical Survey Institute, Ibaraki VL - 9 KW - Global Positioning System KW - strain KW - mapping KW - geodesy KW - interferometry KW - measurement KW - spatial variations KW - SAR KW - time factor KW - applications KW - very long baseline interferometry KW - crust KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52818380?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+...+Joint+Meeting+of+the+U.J.N.R.+Panel+on+Earthquake+Prediction+Technology&rft.atitle=GPS+and+ISAR%3B+tools+for+continuous+surface+strain+mapping+in+time+and+space&rft.au=Baltuck%2C+M%3BLaBrecque%2C+J+L%3BPaylor%2C+E+D%3BAnonymous&rft.aulast=Baltuck&rft.aufirst=M&rft.date=1994-11-01&rft.volume=9&rft.issue=&rft.spage=403&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+...+Joint+Meeting+of+the+U.J.N.R.+Panel+on+Earthquake+Prediction+Technology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Proceedings of the 9th joint meeting of the U.J.N.R. Panel on Earthquake Prediction Technology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 26 N1 - Last updated - 2012-06-07 N1 - CODEN - #04209 N1 - SubjectsTermNotLitGenreText - applications; crust; geodesy; Global Positioning System; interferometry; mapping; measurement; SAR; spatial variations; strain; time factor; very long baseline interferometry ER - TY - JOUR T1 - The role of the ocean in climate at the last glacial maximum AN - 52808573; 1996-068556 JF - Eos, Transactions, American Geophysical Union AU - Webb, R AU - Lehman, S J AU - Rind, D H AU - Healy, R J AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 381 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - Cenozoic KW - last glacial maximum KW - Quaternary KW - marine environment KW - cooling KW - paleo-oceanography KW - reconstruction KW - paleoclimatology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52808573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Technology+Transfer&rft.atitle=Corporate+Incubators%3A+Industrial+R%26amp%3BD+and+What+Universities+can+Learn+from+them&rft.au=Becker%2C+Barbara%3BGassmann%2C+Oliver&rft.aulast=Becker&rft.aufirst=Barbara&rft.date=2006-07-01&rft.volume=31&rft.issue=4&rft.spage=469&rft.isbn=&rft.btitle=&rft.title=Journal+of+Technology+Transfer&rft.issn=08929912&rft_id=info:doi/10.1007%2Fs10961-006-0008-6 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Cenozoic; cooling; last glacial maximum; marine environment; paleo-oceanography; paleoclimatology; Quaternary; reconstruction ER - TY - JOUR T1 - Climatic impact of deglacial polar motion AN - 52807027; 1996-068548 JF - Eos, Transactions, American Geophysical Union AU - Bills, Bruce G AU - Mengel, John G AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 380 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - motions KW - Earth KW - glaciation KW - polar wandering KW - paleomagnetism KW - glacial geology KW - paleoclimatology KW - deglaciation KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52807027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Climatic+impact+of+deglacial+polar+motion&rft.au=Bills%2C+Bruce+G%3BMengel%2C+John+G%3BAnonymous&rft.aulast=Bills&rft.aufirst=Bruce&rft.date=1994-11-01&rft.volume=75&rft.issue=44%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, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - deglaciation; Earth; glacial geology; glaciation; motions; paleoclimatology; paleomagnetism; polar wandering ER - TY - JOUR T1 - Ocean heat transports and LGM cooling AN - 52806276; 1996-068555 JF - Eos, Transactions, American Geophysical Union AU - Webb, R AU - Lehman, S J AU - Rind, D H AU - Healy, R J AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 381 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - last glacial maximum KW - Quaternary KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - paleo-oceanography KW - marine transport KW - paleoclimatology KW - stable isotopes KW - ice sheets KW - Cenozoic KW - carbon KW - cooling KW - reconstruction KW - glacial geology KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52806276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Ocean+heat+transports+and+LGM+cooling&rft.au=Webb%2C+R%3BLehman%2C+S+J%3BRind%2C+D+H%3BHealy%2C+R+J%3BAnonymous&rft.aulast=Webb&rft.aufirst=R&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; Cenozoic; cooling; glacial geology; ice sheets; isotope ratios; isotopes; last glacial maximum; marine transport; paleo-oceanography; paleoclimatology; Quaternary; reconstruction; stable isotopes ER - TY - JOUR T1 - On Milankovitch glaciation cycles AN - 52773496; 1997-002908 JF - Eos, Transactions, American Geophysical Union AU - Liu, H S AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 240 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - cycles KW - Quaternary KW - oxygen KW - glaciation KW - isotopes KW - isotope ratios KW - O-18/O-16 KW - stable isotopes KW - ice sheets KW - deglaciation KW - variations KW - Cenozoic KW - Milankovitch theory KW - Pleistocene KW - glacial geology KW - climate KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52773496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=On+Milankovitch+glaciation+cycles&rft.au=Liu%2C+H+S%3BAnonymous&rft.aulast=Liu&rft.aufirst=H&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=240&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Cenozoic; climate; cycles; deglaciation; glacial geology; glaciation; ice sheets; isotope ratios; isotopes; Milankovitch theory; O-18/O-16; oxygen; Pleistocene; Quaternary; stable isotopes; variations ER - TY - JOUR T1 - Cr (super 2+) /(Cr (super 2+) PLCr (super 3+) ) measurements in synthetic olivine and coexisting glass as a function of oxygen fugacity using synchrotron microXANES AN - 52748548; 1997-021728 JF - Eos, Transactions, American Geophysical Union AU - Bajt, S AU - McKay, G AU - Mikouchi, T AU - Sutton, S R AU - Delaney, J S AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 748 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - experimental studies KW - volcanic rocks KW - oxygen KW - glasses KW - igneous rocks KW - olivine group KW - ions KW - X-ray spectra KW - fugacity KW - temperature KW - XANES spectra KW - nesosilicates KW - partitioning KW - volcanic glass KW - metals KW - olivine KW - orthosilicates KW - spectra KW - basaltic composition KW - synthetic materials KW - high temperature KW - chromium KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52748548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Cr+%28super+2%2B%29+%2F%28Cr+%28super+2%2B%29+PLCr+%28super+3%2B%29+%29+measurements+in+synthetic+olivine+and+coexisting+glass+as+a+function+of+oxygen+fugacity+using+synchrotron+microXANES&rft.au=Bajt%2C+S%3BMcKay%2C+G%3BMikouchi%2C+T%3BSutton%2C+S+R%3BDelaney%2C+J+S%3BAnonymous&rft.aulast=Bajt&rft.aufirst=S&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=748&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 2 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - basaltic composition; chromium; experimental studies; fugacity; glasses; high temperature; igneous rocks; ions; metals; nesosilicates; olivine; olivine group; orthosilicates; oxygen; partitioning; silicates; spectra; synthetic materials; temperature; volcanic glass; volcanic rocks; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Partitioning of Ir, Re, and Os between solid metal and liquid metal AN - 52745749; 1997-021779 JF - Eos, Transactions, American Geophysical Union AU - Jones, J H AU - Jurewicz, A J G AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 694 EP - 695 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - systems KW - rhenium KW - platinum group KW - iron KW - iridium KW - partitioning KW - phase equilibria KW - metals KW - nickel KW - sulfur KW - osmium KW - fractionation KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52745749?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Partitioning+of+Ir%2C+Re%2C+and+Os+between+solid+metal+and+liquid+metal&rft.au=Jones%2C+J+H%3BJurewicz%2C+A+J+G%3BAnonymous&rft.aulast=Jones&rft.aufirst=J&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=694&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - fractionation; iridium; iron; metals; nickel; osmium; partitioning; phase equilibria; platinum group; rhenium; sulfur; systems ER - TY - JOUR T1 - Narrowband angular reflectance properties of the alkali flats at White Sands, New Mexico AN - 52599479; 1998-038142 JF - Remote Sensing of Environment AU - Whitlock, Charles H AU - LeCroy, Stuart R AU - Wheeler, Robert J Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 171 EP - 181 PB - Elsevier, New York, NY VL - 50 IS - 2 SN - 0034-4257, 0034-4257 KW - United States KW - eolian features KW - moisture KW - finite difference analysis KW - Dona Ana County New Mexico KW - calibration KW - salt flats KW - New Mexico KW - deserts KW - AVHRR KW - infrared methods KW - Sierra County New Mexico KW - helicopter methods KW - Tularosa Basin KW - alkali flats KW - statistical analysis KW - geophysical methods KW - narrowband spectra KW - satellite methods KW - angular reflectance KW - White Sands KW - reflectance KW - remote sensing KW - airborne methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52599479?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Narrowband+angular+reflectance+properties+of+the+alkali+flats+at+White+Sands%2C+New+Mexico&rft.au=Whitlock%2C+Charles+H%3BLeCroy%2C+Stuart+R%3BWheeler%2C+Robert+J&rft.aulast=Whitlock&rft.aufirst=Charles&rft.date=1994-11-01&rft.volume=50&rft.issue=2&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00344257 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 25 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - RSEEA7 N1 - SubjectsTermNotLitGenreText - airborne methods; alkali flats; angular reflectance; AVHRR; calibration; deserts; Dona Ana County New Mexico; eolian features; finite difference analysis; geophysical methods; helicopter methods; infrared methods; moisture; narrowband spectra; New Mexico; reflectance; remote sensing; salt flats; satellite methods; Sierra County New Mexico; statistical analysis; Tularosa Basin; United States; White Sands ER - TY - JOUR T1 - Use of planetary soils within CELSS; the plant viewpoint AN - 52592862; 1998-041822 JF - Advances in Space Research AU - Spomer, L Art A2 - MacElroy, R. D. A2 - Andre, M. A2 - Blackwell, C. C. A2 - Banin, A. A2 - Levine, J. S. A2 - Tibbitts, T. W. A2 - Mitchell, C. A. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 411 EP - 416 PB - Pergamon, Oxford-New York VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - soils KW - planets KW - Plantae KW - controlled environment life support systems KW - roots KW - planetology KW - astrobiology KW - water regimes KW - growth KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52592862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Space+Research&rft.atitle=A+Review+of+Commercialization+Tools%3A+University+Incubators+and+Technology+Parks&rft.au=Jamil%2C+Farhan%3BIsmail%2C+Kamariah%3BMahmood%2C+Nasir&rft.aulast=Jamil&rft.aufirst=Farhan&rft.date=2015-01-01&rft.volume=5&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Economics+and+Financial+Issues&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Conference title - Topical meeting of the COSPAR Interdisciplinary Scientific Commission F (meeting F4) of the COSPAR twenty-ninth plenary meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 13 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - astrobiology; controlled environment life support systems; growth; planetology; planets; Plantae; roots; soils; water regimes ER - TY - JOUR T1 - Topical meeting of the COSPAR Interdisciplinary Scientific Commission F (meeting F4) of the COSPAR twenty-ninth plenary meeting AN - 52592831; 1998-041821 JF - Advances in Space Research A2 - MacElroy, R. D. A2 - Andre, M. A2 - Blackwell, C. C. A2 - Banin, A. A2 - Levine, J. S. A2 - Tibbitts, T. W. A2 - Mitchell, C. A. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 466 PB - Pergamon, Oxford-New York VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - symposia KW - natural materials KW - astrobiology KW - terrestrial comparison KW - ecosystems KW - current research KW - synthetic materials KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52592831?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=Advances+in+Space+Research&rft.atitle=Topical+meeting+of+the+COSPAR+Interdisciplinary+Scientific+Commission+F+%28meeting+F4%29+of+the+COSPAR+twenty-ninth+plenary+meeting&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=&rft.isbn=0080424880&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Conference title - Topical meeting of the COSPAR Interdisciplinary Scientific Commission F (meeting F4) of the COSPAR twenty-ninth plenary meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - astrobiology; current research; ecosystems; natural materials; symposia; synthetic materials; terrestrial comparison ER - TY - JOUR T1 - Use of lunar regolith as a substrate for plant growth AN - 52589471; 1998-041823 JF - Advances in Space Research AU - Ming, D W AU - Henninger, D L A2 - MacElroy, R. D. A2 - Andre, M. A2 - Blackwell, C. C. A2 - Banin, A. A2 - Levine, J. S. A2 - Tibbitts, T. W. A2 - Mitchell, C. A. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 435 EP - 443 PB - Pergamon, Oxford-New York VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Plantae KW - cation exchange capacity KW - Moon KW - astrobiology KW - cosmochemistry KW - nutrients KW - lunar samples KW - regenerative life support systems KW - regolith KW - pH KW - lunar soils KW - growth KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52589471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Space+Research&rft.atitle=Use+of+lunar+regolith+as+a+substrate+for+plant+growth&rft.au=Ming%2C+D+W%3BHenninger%2C+D+L&rft.aulast=Ming&rft.aufirst=D&rft.date=1994-11-01&rft.volume=14&rft.issue=11&rft.spage=435&rft.isbn=0080424880&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Conference title - Topical meeting of the COSPAR Interdisciplinary Scientific Commission F (meeting F4) of the COSPAR twenty-ninth plenary meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - astrobiology; cation exchange capacity; cosmochemistry; growth; lunar samples; lunar soils; Moon; nutrients; pH; Plantae; regenerative life support systems; regolith ER - TY - JOUR T1 - Formation of iron oxide pigments on Mars by meteoritic impact AN - 52024241; 2003-016037 JF - Eos, Transactions, American Geophysical Union AU - Morris, R V AU - Bell, J F, III AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 406 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - surface properties KW - imagery KW - iron oxides KW - impact features KW - Quebec KW - pigments KW - Mars KW - impacts KW - melts KW - terrestrial planets KW - planets KW - meteorites KW - organic compounds KW - Canada KW - hematite KW - Manicouagan Crater KW - oxides KW - terrestrial comparison KW - impact craters KW - Eastern Canada KW - color imagery KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52024241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Formation+of+iron+oxide+pigments+on+Mars+by+meteoritic+impact&rft.au=Morris%2C+R+V%3BBell%2C+J+F%2C+III%3BAnonymous&rft.aulast=Morris&rft.aufirst=R&rft.date=1994-11-01&rft.volume=&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=ICSB+World+Conference+Proceedings&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Canada; color imagery; Eastern Canada; hematite; imagery; impact craters; impact features; impacts; iron oxides; Manicouagan Crater; Mars; melts; meteorites; organic compounds; oxides; pigments; planets; Quebec; surface properties; terrestrial comparison; terrestrial planets ER - TY - JOUR T1 - A possible explanation for the apparent scarcity of Martian carbonates AN - 52023456; 2003-016046 JF - Eos, Transactions, American Geophysical Union AU - Zent, A P AU - Quinn, R C AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 407 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - terrestrial planets KW - planets KW - numerical models KW - chemical reactions KW - oxidation KW - photochemistry KW - atmosphere KW - Mars KW - thermodynamic properties KW - carbonates KW - carbon dioxide KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52023456?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+possible+explanation+for+the+apparent+scarcity+of+Martian+carbonates&rft.au=Zent%2C+A+P%3BQuinn%2C+R+C%3BAnonymous&rft.aulast=Zent&rft.aufirst=A&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; carbonates; chemical reactions; Mars; numerical models; oxidation; photochemistry; planets; terrestrial planets; thermodynamic properties ER - TY - JOUR T1 - Why Mars is red; a process-oriented viewpoint AN - 52023245; 2003-016035 JF - Eos, Transactions, American Geophysical Union AU - Bell, J F, III AU - Morris, R V AU - Adams, J B AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 406 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - terrestrial planets KW - surface properties KW - planets KW - alteration KW - iron minerals KW - color KW - weathered materials KW - Mars KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52023245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+Mars+is+red%3B+a+process-oriented+viewpoint&rft.au=Bell%2C+J+F%2C+III%3BMorris%2C+R+V%3BAdams%2C+J+B%3BAnonymous&rft.aulast=Bell&rft.aufirst=J&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=406&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alteration; color; iron minerals; Mars; planets; surface properties; terrestrial planets; weathered materials ER - TY - JOUR T1 - X-ray diffraction techniques for in-situ analysis of Martian surface materials AN - 52022802; 2003-016030 JF - Eos, Transactions, American Geophysical Union AU - Marshall, J R AU - Keaten, R AU - Metzger, E P AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 400 EP - 401 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - terrestrial planets KW - planets KW - polar regions KW - volcanic rocks KW - in situ KW - igneous rocks KW - basalts KW - X-ray analysis KW - techniques KW - Mars KW - X-ray diffraction analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52022802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=X-ray+diffraction+techniques+for+in-situ+analysis+of+Martian+surface+materials&rft.au=Marshall%2C+J+R%3BKeaten%2C+R%3BMetzger%2C+E+P%3BAnonymous&rft.aulast=Marshall&rft.aufirst=J&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=400&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - basalts; igneous rocks; in situ; Mars; planets; polar regions; techniques; terrestrial planets; volcanic rocks; X-ray analysis; X-ray diffraction analysis ER - TY - JOUR T1 - Topography of the Moon from the Clementine mission AN - 52022726; 2003-016024 JF - Eos, Transactions, American Geophysical Union AU - Smith, D E AU - Zuber, M T AU - Neumann, G A AU - Lemoine, F G AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 399 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - topography KW - farside KW - rilles KW - impact features KW - Moon KW - surface features KW - Clementine Program KW - impact craters KW - maria KW - lunar craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52022726?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+hemispherical+asymmetry+in+the+Martian+polar+caps&rft.au=Lindner%2C+Bernhard+Lee%3BHaberle%2C+Robert+M&rft.aulast=Lindner&rft.aufirst=Bernhard&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3339&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02975 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Clementine Program; farside; impact craters; impact features; lunar craters; maria; Moon; rilles; surface features; topography ER - TY - JOUR T1 - The missing Southeast Asian impact crater; a progress report AN - 52022484; 2003-016053 JF - Eos, Transactions, American Geophysical Union AU - Schnetzler, C C AU - Garvin, J B AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 409 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - microtektites KW - impact features KW - impact craters KW - Southeast Asia KW - impacts KW - Asia KW - distribution KW - tektites KW - 05B:Petrology of meteorites and tektites KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52022484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+missing+Southeast+Asian+impact+crater%3B+a+progress+report&rft.au=Schnetzler%2C+C+C%3BGarvin%2C+J+B%3BAnonymous&rft.aulast=Schnetzler&rft.aufirst=C&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; distribution; impact craters; impact features; impacts; microtektites; Southeast Asia; tektites ER - TY - JOUR T1 - The influence of the Martian atmosphere on the measurement of surface center AN - 52022277; 2003-016047 JF - Eos, Transactions, American Geophysical Union AU - Ockert-Bell, M E AU - Bell, J F, III AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 407 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - surface properties KW - imagery KW - atmosphere KW - Viking Program KW - Mars KW - measurement KW - terrestrial planets KW - brightness KW - planets KW - cosmic dust KW - optical properties KW - color KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52022277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+influence+of+the+Martian+atmosphere+on+the+measurement+of+surface+center&rft.au=Ockert-Bell%2C+M+E%3BBell%2C+J+F%2C+III%3BAnonymous&rft.aulast=Ockert-Bell&rft.aufirst=M&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; brightness; color; cosmic dust; imagery; Mars; measurement; optical properties; planets; surface properties; terrestrial planets; Viking Program ER - TY - JOUR T1 - Gravity, topography and the internal structure of the Moon from the Clementine mission AN - 52022197; 2003-016026 JF - Eos, Transactions, American Geophysical Union AU - Zuber, M T AU - Smith, D E AU - Neumann, G A AU - Lemoine, F G AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 400 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - gravity field KW - topography KW - Moon KW - lunar interior KW - lunar crust KW - isostatic compensation KW - lunar mantle KW - Clementine Program KW - lunar highlands KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52022197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Gravity%2C+topography+and+the+internal+structure+of+the+Moon+from+the+Clementine+mission&rft.au=Zuber%2C+M+T%3BSmith%2C+D+E%3BNeumann%2C+G+A%3BLemoine%2C+F+G%3BAnonymous&rft.aulast=Zuber&rft.aufirst=M&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=400&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Clementine Program; gravity field; isostatic compensation; lunar crust; lunar highlands; lunar interior; lunar mantle; Moon; topography ER - TY - JOUR T1 - Goddard lunar gravity model-1 (GLGM-1); a 70th degree and order gravity model for the Moon AN - 52021112; 2003-016025 JF - Eos, Transactions, American Geophysical Union AU - Lemoine, F G AU - Smith, D E AU - Zuber, M T AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 400 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - models KW - gravity anomalies KW - gravity field KW - Moon KW - Goddard model KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52021112?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Goddard+lunar+gravity+model-1+%28GLGM-1%29%3B+a+70th+degree+and+order+gravity+model+for+the+Moon&rft.au=Lemoine%2C+F+G%3BSmith%2C+D+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Lemoine&rft.aufirst=F&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=400&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Goddard model; gravity anomalies; gravity field; models; Moon ER - TY - JOUR T1 - Understanding metal-silicate fractionation in natural impact melts AN - 52016999; 2003-016094 JF - Eos, Transactions, American Geophysical Union AU - Rowan, Linda R AU - Horz, Friedrich AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 417 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - Yucatan Mexico KW - impact features KW - meteor craters KW - impacts KW - metamorphism KW - melts KW - Mexico KW - metals KW - impact craters KW - Chicxulub Crater KW - shock metamorphism KW - chemical fractionation KW - 23:Geomorphology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016999?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Understanding+metal-silicate+fractionation+in+natural+impact+melts&rft.au=Rowan%2C+Linda+R%3BHorz%2C+Friedrich%3BAnonymous&rft.aulast=Rowan&rft.aufirst=Linda&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chemical fractionation; Chicxulub Crater; impact craters; impact features; impacts; melts; metals; metamorphism; meteor craters; Mexico; shock metamorphism; silicates; Yucatan Mexico ER - TY - JOUR T1 - Chondrule clumping and chondrite formation AN - 52016603; 2003-016097 JF - Eos, Transactions, American Geophysical Union AU - Hogan, R C AU - Dobrovolskis, A R AU - Cuzzi, J N AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 417 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - meteorites KW - stony meteorites KW - numerical models KW - chondrules KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Chondrule+clumping+and+chondrite+formation&rft.au=Hogan%2C+R+C%3BDobrovolskis%2C+A+R%3BCuzzi%2C+J+N%3BAnonymous&rft.aulast=Hogan&rft.aufirst=R&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chondrites; chondrules; meteorites; numerical models; stony meteorites ER - TY - JOUR T1 - Macroprobing the lunar crust with the microprobe; sources of mineral clasts in Apollo 17 impact melt breccia AN - 52016566; 2003-016095 JF - Eos, Transactions, American Geophysical Union AU - Ryder, G AU - Kuebler, K AU - Norman, M AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 417 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - breccia KW - impactites KW - Moon KW - lunar breccia KW - Apollo Program KW - impact breccia KW - clasts KW - impacts KW - melts KW - electron probe data KW - lunar samples KW - metamorphic rocks KW - lunar crust KW - Apollo 17 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52016566?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Macroprobing+the+lunar+crust+with+the+microprobe%3B+sources+of+mineral+clasts+in+Apollo+17+impact+melt+breccia&rft.au=Ryder%2C+G%3BKuebler%2C+K%3BNorman%2C+M%3BAnonymous&rft.aulast=Ryder&rft.aufirst=G&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Apollo 17; Apollo Program; breccia; clasts; electron probe data; impact breccia; impactites; impacts; lunar breccia; lunar crust; lunar samples; melts; metamorphic rocks; Moon ER - TY - JOUR T1 - Dynamic ocean tide, and mantle anelasticity effects on short period terms in the length of day AN - 51992849; 2003-037705 JF - Eos, Transactions, American Geophysical Union AU - Tamura, Y AU - Merriam, J B AU - Chao, B F AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 158 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - tides KW - ocean circulation KW - rotation KW - mantle KW - anelasticity KW - elastic waves KW - core KW - short-period waves KW - length of day KW - decoupling KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51992849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+ocean+tide%2C+and+mantle+anelasticity+effects+on+short+period+terms+in+the+length+of+day&rft.au=Tamura%2C+Y%3BMerriam%2C+J+B%3BChao%2C+B+F%3BAnonymous&rft.aulast=Tamura&rft.aufirst=Y&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=158&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anelasticity; core; decoupling; elastic waves; length of day; mantle; ocean circulation; rotation; short-period waves; tides ER - TY - JOUR T1 - Biological oxidation of methyl bromide in Mono Lake, California AN - 51992790; 2003-037667 JF - Eos, Transactions, American Geophysical Union AU - Connell, T L AU - Miller, L G AU - Oremland, R S AU - Jahnke, L AU - Joye, S B AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 110 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - hydrology KW - experimental studies KW - solutions KW - Mono County California KW - pollutants KW - oxidation KW - surface water KW - lakes KW - pollution KW - environmental analysis KW - California KW - ozone KW - organic compounds KW - methyl bromide KW - biogenic processes KW - Mono Lake KW - halogenated hydrocarbons KW - geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51992790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+analysis+of+the+history+of+dust+activity+on+Mars&rft.au=Martin%2C+Leonard+J%3BZurek%2C+Richard+W%3BHaberle%2C+Robert+M&rft.aulast=Martin&rft.aufirst=Leonard&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3221&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02937 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - biogenic processes; California; environmental analysis; experimental studies; geochemistry; halogenated hydrocarbons; hydrology; lakes; methyl bromide; Mono County California; Mono Lake; organic compounds; oxidation; ozone; pollutants; pollution; solutions; surface water; United States ER - TY - JOUR T1 - Comparison of the dispersion of the Mt. Pinatubo and El Chichon stratospheric aerosol clouds AN - 51992751; 2003-037665 JF - Eos, Transactions, American Geophysical Union AU - Young, R E AU - Houben, H AU - Toon, O B AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 101 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - clouds KW - Luzon KW - diffusion KW - Far East KW - atmosphere KW - El Chichon KW - Mexico KW - stratosphere KW - Mount Pinatubo KW - Philippine Islands KW - eruptions KW - volcanoes KW - aerosols KW - Asia KW - Chiapas Mexico KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51992751?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Comparison+of+the+dispersion+of+the+Mt.+Pinatubo+and+El+Chichon+stratospheric+aerosol+clouds&rft.au=Young%2C+R+E%3BHouben%2C+H%3BToon%2C+O+B%3BAnonymous&rft.aulast=Young&rft.aufirst=R&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; Chiapas Mexico; clouds; diffusion; El Chichon; eruptions; Far East; Luzon; Mexico; Mount Pinatubo; Philippine Islands; stratosphere; volcanoes ER - TY - JOUR T1 - NASA's Space Geodesy Project; a summary of GPS footprint results AN - 51991678; 2003-037706 JF - Eos, Transactions, American Geophysical Union AU - Bell, L AU - Bryant, M AU - Nelson, V AU - Allenby, R AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 158 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - California KW - Global Positioning System KW - experimental studies KW - Texas KW - Maryland KW - geodesy KW - satellite methods KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51991678?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=NASA%27s+Space+Geodesy+Project%3B+a+summary+of+GPS+footprint+results&rft.au=Bell%2C+L%3BBryant%2C+M%3BNelson%2C+V%3BAllenby%2C+R%3BAnonymous&rft.aulast=Bell&rft.aufirst=L&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=158&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - California; experimental studies; geodesy; Global Positioning System; Maryland; remote sensing; satellite methods; Texas; United States ER - TY - JOUR T1 - Global biogeochemical controls and seasonality of atmospheric methane consumption in soils AN - 51991550; 2003-037677 JF - Eos, Transactions, American Geophysical Union AU - Potter, C S AU - Davidson, E A AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 140 EP - 141 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - diffusion KW - methane KW - biochemistry KW - global KW - aliphatic hydrocarbons KW - atmosphere KW - alkanes KW - water balance KW - geochemical cycle KW - models KW - organic compounds KW - hydrocarbons KW - seasonal variations KW - 25:Soils KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51991550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Global+biogeochemical+controls+and+seasonality+of+atmospheric+methane+consumption+in+soils&rft.au=Potter%2C+C+S%3BDavidson%2C+E+A%3BAnonymous&rft.aulast=Potter&rft.aufirst=C&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=140&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; biochemistry; diffusion; geochemical cycle; global; hydrocarbons; methane; models; organic compounds; seasonal variations; soils; water balance ER - TY - JOUR T1 - Airborne laser altimeter survey of Long Valley, California AN - 51991385; 2003-037709 JF - Eos, Transactions, American Geophysical Union AU - Ridgway, J R AU - Minster, J B AU - Williams, N P AU - Bufton, J AU - Krabill, W AU - Rabine, D AU - Vaughn, C AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 160 EP - 161 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - vertical movements KW - United States KW - California KW - topography KW - laser methods KW - geophysical surveys KW - uplifts KW - surveys KW - tectonics KW - Long Valley KW - airborne methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51991385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Airborne+laser+altimeter+survey+of+Long+Valley%2C+California&rft.au=Ridgway%2C+J+R%3BMinster%2C+J+B%3BWilliams%2C+N+P%3BBufton%2C+J%3BKrabill%2C+W%3BRabine%2C+D%3BVaughn%2C+C%3BAnonymous&rft.aulast=Ridgway&rft.aufirst=J&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=160&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - airborne methods; California; geophysical surveys; laser methods; Long Valley; surveys; tectonics; topography; United States; uplifts; vertical movements ER - TY - JOUR T1 - Zonal tidal signals in the Earth's polar motion AN - 51990732; 2003-037704 JF - Eos, Transactions, American Geophysical Union AU - Chao, B F AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 158 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - tides KW - long-period waves KW - ocean circulation KW - rotation KW - Earth tides KW - polar wandering KW - paleomagnetism KW - elastic waves KW - length of day KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51990732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Zonal+tidal+signals+in+the+Earth%27s+polar+motion&rft.au=Chao%2C+B+F%3BAnonymous&rft.aulast=Chao&rft.aufirst=B&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=158&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Earth tides; elastic waves; length of day; long-period waves; ocean circulation; paleomagnetism; polar wandering; rotation; tides ER - TY - JOUR T1 - Contemporary plate motions from VLBI AN - 51990281; 2003-037712 JF - Eos, Transactions, American Geophysical Union AU - Ma, C AU - Gipson, J M AU - Ryan, J W AU - Clark, T A AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 161 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - plate tectonics KW - movement KW - global KW - velocity KW - very long baseline interferometry KW - geodesy KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51990281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Contemporary+plate+motions+from+VLBI&rft.au=Ma%2C+C%3BGipson%2C+J+M%3BRyan%2C+J+W%3BClark%2C+T+A%3BAnonymous&rft.aulast=Ma&rft.aufirst=C&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - geodesy; global; movement; plate tectonics; velocity; very long baseline interferometry ER - TY - JOUR T1 - Design of VLBI networks for efficient realization of an accurate global terrestrial reference frame AN - 51990104; 2003-037725 JF - Eos, Transactions, American Geophysical Union AU - Vandenberg, N R AU - Ryan, J W AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 163 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - Global Positioning System KW - very long baseline interferometry KW - geodetic networks KW - geodetic coordinates KW - geodesy KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51990104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Design+of+VLBI+networks+for+efficient+realization+of+an+accurate+global+terrestrial+reference+frame&rft.au=Vandenberg%2C+N+R%3BRyan%2C+J+W%3BAnonymous&rft.aulast=Vandenberg&rft.aufirst=N&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - geodesy; geodetic coordinates; geodetic networks; Global Positioning System; very long baseline interferometry ER - TY - JOUR T1 - Topographic characterization and monitoring of Mount Rainier and Mount St. Helens via laser altimetry AN - 51990076; 2003-037708 JF - Eos, Transactions, American Geophysical Union AU - Garvin, J B AU - Harding, D J AU - Blair, J Bryan AU - Coyle, J Barry AU - Frawley, J J AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 160 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Skamania County Washington KW - high-resolution methods KW - Washington KW - monitoring KW - laser methods KW - geophysical surveys KW - three-dimensional models KW - Mount Saint Helens KW - Pierce County Washington KW - altimetry KW - Cascade Range KW - topography KW - Mount Rainier KW - volcanoes KW - surveys KW - airborne methods KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51990076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Topographic+characterization+and+monitoring+of+Mount+Rainier+and+Mount+St.+Helens+via+laser+altimetry&rft.au=Garvin%2C+J+B%3BHarding%2C+D+J%3BBlair%2C+J+Bryan%3BCoyle%2C+J+Barry%3BFrawley%2C+J+J%3BAnonymous&rft.aulast=Garvin&rft.aufirst=J&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=160&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - airborne methods; altimetry; Cascade Range; geophysical surveys; high-resolution methods; laser methods; monitoring; Mount Rainier; Mount Saint Helens; Pierce County Washington; Skamania County Washington; surveys; three-dimensional models; topography; United States; volcanoes; Washington ER - TY - JOUR T1 - A mechanism for volcanic influences on anomalous El Nino events AN - 51989966; 2003-037672 JF - Eos, Transactions, American Geophysical Union AU - Harris, I AU - Schatten, K H AU - Mayr, H G AU - Taylor, H A, Jr AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 121 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - eruptions KW - El Nino KW - climate effects KW - volcanoes KW - mechanism KW - atmosphere KW - anomalies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51989966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+mechanism+for+volcanic+influences+on+anomalous+El+Nino+events&rft.au=Harris%2C+I%3BSchatten%2C+K+H%3BMayr%2C+H+G%3BTaylor%2C+H+A%2C+Jr%3BAnonymous&rft.aulast=Harris&rft.aufirst=I&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anomalies; atmosphere; climate effects; El Nino; eruptions; mechanism; volcanoes ER - TY - JOUR T1 - A global solution for plate kinematics AN - 51988856; 2003-037713 JF - Eos, Transactions, American Geophysical Union AU - Torrence, M H AU - Robbins, J W AU - Williamson, R G AU - Rachlin, K E AU - Smith, D E AU - Kolenkiewicz, R AU - Nerem, R S AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 161 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - kinematics KW - plate tectonics KW - movement KW - global KW - geodesy KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51988856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+global+solution+for+plate+kinematics&rft.au=Torrence%2C+M+H%3BRobbins%2C+J+W%3BWilliamson%2C+R+G%3BRachlin%2C+K+E%3BSmith%2C+D+E%3BKolenkiewicz%2C+R%3BNerem%2C+R+S%3BAnonymous&rft.aulast=Torrence&rft.aufirst=M&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - geodesy; global; kinematics; movement; plate tectonics ER - TY - JOUR T1 - The history of the Martian atmosphere AN - 50301935; 2003-016038 JF - Eos, Transactions, American Geophysical Union AU - Jakosky, B M AU - Jones, J H AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 406 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - surface properties KW - stony meteorites KW - isotopes KW - Martian meteorites KW - isotope ratios KW - atmosphere KW - Mars KW - achondrites KW - stable isotopes KW - terrestrial planets KW - SNC Meteorites KW - planets KW - meteorites KW - D/H KW - hydrogen KW - deuterium KW - Martian atmosphere KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50301935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+history+of+the+Martian+atmosphere&rft.au=Jakosky%2C+B+M%3BJones%2C+J+H%3BAnonymous&rft.aulast=Jakosky&rft.aufirst=B&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=406&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - achondrites; atmosphere; D/H; deuterium; hydrogen; isotope ratios; isotopes; Mars; Martian atmosphere; Martian meteorites; meteorites; planets; SNC Meteorites; stable isotopes; stony meteorites; surface properties; terrestrial planets ER - TY - JOUR T1 - A new spectral analog for the dark regions of Mars AN - 50301878; 2003-016034 JF - Eos, Transactions, American Geophysical Union AU - Bass, D S AU - Calvin, W M AU - Paige, D A AU - Morris, R V AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 405 EP - 406 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - terrestrial planets KW - planets KW - imagery KW - hematite KW - oxides KW - terrestrial comparison KW - Mars KW - spectra KW - remote sensing KW - Mossbauer spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50301878?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+new+spectral+analog+for+the+dark+regions+of+Mars&rft.au=Bass%2C+D+S%3BCalvin%2C+W+M%3BPaige%2C+D+A%3BMorris%2C+R+V%3BAnonymous&rft.aulast=Bass&rft.aufirst=D&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=405&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - hematite; imagery; Mars; Mossbauer spectra; oxides; planets; remote sensing; spectra; terrestrial comparison; terrestrial planets ER - TY - JOUR T1 - A global view of Venus; summary status of geology at Magellan's end AN - 50298846; 2003-016060 JF - Eos, Transactions, American Geophysical Union AU - Saunders, R Stephen AU - Stofan, Ellen R AU - Plaut, Jeffrey J AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 412 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - terrestrial planets KW - surface properties KW - planets KW - imagery KW - Magellan Program KW - Venus KW - global KW - radar methods KW - atmosphere KW - mapping KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50298846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+global+view+of+Venus%3B+summary+status+of+geology+at+Magellan%27s+end&rft.au=Saunders%2C+R+Stephen%3BStofan%2C+Ellen+R%3BPlaut%2C+Jeffrey+J%3BAnonymous&rft.aulast=Saunders&rft.aufirst=R&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=412&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; global; imagery; Magellan Program; mapping; planets; radar methods; surface properties; terrestrial planets; Venus ER - TY - JOUR T1 - Seismic observations from the Shoemaker-Levy 9 impacts AN - 50298607; 2003-016033 JF - Eos, Transactions, American Geophysical Union AU - Lognonne, Philippe AU - Mosser, B AU - Lagage, P O AU - Galdemard, P AU - Sauvage, M AU - Billebaud, F AU - Vauglin, I AU - Merlin, P AU - Sybille, F AU - Gautier, D AU - Drossart, P AU - Livengood, T AU - Kaeufl, U AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 405 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - seismograms KW - body waves KW - guided waves KW - Jupiter KW - geophysical methods KW - Shoemaker-Levy 9 Comet KW - elastic waves KW - impacts KW - seismic methods KW - observations KW - giant planets KW - planets KW - surface waves KW - comets KW - seismicity KW - synthetic seismograms KW - seismic waves KW - outer planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50298607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Excitation+of+Earth%27s+polar+motion+by+atmospheric+angular+momentum+variations%2C+1980-1990&rft.au=Chao%2C+Benjamin+Fong&rft.aulast=Chao&rft.aufirst=Benjamin&rft.date=1993-02-01&rft.volume=20&rft.issue=3&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - body waves; comets; elastic waves; geophysical methods; giant planets; guided waves; impacts; Jupiter; observations; outer planets; planets; seismic methods; seismic waves; seismicity; seismograms; Shoemaker-Levy 9 Comet; surface waves; synthetic seismograms ER - TY - JOUR T1 - Is Deimos uniform in density? AN - 50297951; 2003-016099 JF - Eos, Transactions, American Geophysical Union AU - Rubincam, D P AU - Chao, B F AU - Thomas, P C AU - Anonymous Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 417 PB - American Geophysical Union, Washington, DC VL - 75 IS - 44, Suppl. SN - 0096-3941, 0096-3941 KW - terrestrial planets KW - planets KW - gravity field KW - density KW - Mars KW - satellites KW - Deimos Satellite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50297951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Is+Deimos+uniform+in+density%3F&rft.au=Rubincam%2C+D+P%3BChao%2C+B+F%3BThomas%2C+P+C%3BAnonymous&rft.aulast=Rubincam&rft.aufirst=D&rft.date=1994-11-01&rft.volume=75&rft.issue=44%2C+Suppl.&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Deimos Satellite; density; gravity field; Mars; planets; satellites; terrestrial planets ER - TY - JOUR T1 - Contemporary global horizontal crustal motion AN - 50196780; 1995-006311 JF - Geophysical Journal International AU - Smith, D E AU - Kolenkiewicz, R AU - Nerem, R S AU - Dunn, P J AU - Torrence, M H AU - Robbins, J W AU - Klosko, S M AU - Williamson, R G AU - Pavlis, E C Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 511 EP - 520 PB - Blackwell Scientific, Oxford VL - 119 IS - 2 SN - 0956-540X, 0956-540X KW - plate tectonics KW - movement KW - rates KW - Lageos KW - applications KW - geodesy KW - satellite methods KW - crust KW - remote sensing KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50196780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Journal+International&rft.atitle=Contemporary+global+horizontal+crustal+motion&rft.au=Smith%2C+D+E%3BKolenkiewicz%2C+R%3BNerem%2C+R+S%3BDunn%2C+P+J%3BTorrence%2C+M+H%3BRobbins%2C+J+W%3BKlosko%2C+S+M%3BWilliamson%2C+R+G%3BPavlis%2C+E+C&rft.aulast=Smith&rft.aufirst=D&rft.date=1994-11-01&rft.volume=119&rft.issue=2&rft.spage=511&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; crust; geodesy; Lageos; movement; plate tectonics; rates; remote sensing; satellite methods ER - TY - JOUR T1 - Neodymium, strontium and chromium isotopic studies of the LEW86010 and Angra dos Reis meteorites and the chronology of the angrite parent body AN - 50191886; 1995-010325 AB - Nd, Sr and Cr isotopic studies of the LEW86010 angrite establish its absolute age and the formation interval between its crystallization and formation of Allende CAIs. Pyroxene and phosphate contain approximately 98% of its Sm and Nd inventory. A conventional (super 147) Sm- (super 143) Nd isochron yielded an age of 4530 + or - 40 m.y. and epsilon (super 143) (sub roman Nd ) = 0.45 + or - 1.1. An (super 146) Sm- (super 142) Nd isochron gives initial (super 146) Sm/ (super 144) Sm = 0.0076 + or - 0.0009 and epsilon (super 143) (sub roman Nd ) = -2.5 + or - 0.4. The Rb-Sr analyses give initial (super 87) Sr/ (super 86) Sr 0.698972 + or - 8 and 0.698970 + or - 18 for LEW and ADOR respectively. The difference between the ages of angrites and Allende CAIs corresponds with about 9 m.y. in a solar nebula with a CI chondrite value of (super 87) Rb/ (super 86) Sr = 0.91, and 5 m.y. in a nebula with solar photospheric (super 87) Rb/ (super 86) Sr = 1.51. Excess from extinct (super 53) Mn in LEW86010 corresponds with initial (super 53) Mn/ (super 55) Mn = 1.44 + or - 0.07 X 10 (super -6) and closure to Cr isotopic homogenization 18.2 + or - 1.7 m.y. after formation of the Allende inclusions. The (super 146) Sm/ (super 144) Sm value found for LEW86010 corresponds with solar system initial ( (super 146) Sm/ (super 144) Sm) (sub o) = 0.0080 + or - 0.0009 for crystallization 8 m.y. after Allende, the difference between Pb-Pb ages of angrites and Allende, or 0.0086 + or - 0.0009 for crystallization 18 m.y. after Allende, using the Mn-Cr formation interval. A model is proposed in which an undifferentiated 'chondritic' parent body formed from the solar nebula approximately 2 m.y. after Allende CAIs and subsequently underwent differentiation accompanied by loss of volatiles. Parent bodies with Rb/Sr similar to CI, CM, or CO chondrites could satisfy the Cr and Sr isotopic systematics. An angrite parent body with Rb/Sr similar to CV chondrites would have to form slightly later, approximately 2.6 m.y. after the CAIs. JF - Meteoritics AU - Nyquist, L E AU - Bansal, B AU - Wiesmann, H AU - Shih, C Y Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 872 EP - 885 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 6 SN - 0026-1114, 0026-1114 KW - Angra dos Reis Meteorite KW - stony meteorites KW - isotopes KW - Lewis Cliff Meteorites KW - LEW 86010 KW - angrite KW - stable isotopes KW - meteorites KW - radioactive isotopes KW - Sm-147/Nd-144 KW - samarium KW - rare earths KW - chromium KW - alkaline earth metals KW - Sm-146/Sm-144 KW - isotope ratios KW - achondrites KW - Sr-87/Sr-86 KW - Cr-53/Cr-52 KW - metals KW - Nd-143/Nd-142 KW - parent materials KW - neodymium KW - strontium KW - SEM data KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50191886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Neodymium%2C+strontium+and+chromium+isotopic+studies+of+the+LEW86010+and+Angra+dos+Reis+meteorites+and+the+chronology+of+the+angrite+parent+body&rft.au=Nyquist%2C+L+E%3BBansal%2C+B%3BWiesmann%2C+H%3BShih%2C+C+Y&rft.aulast=Nyquist&rft.aufirst=L&rft.date=1994-11-01&rft.volume=29&rft.issue=6&rft.spage=872&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1995-01-01 N1 - Number of references - 73 N1 - PubXState - AZ N1 - Document feature - 4 tables N1 - SuppNotes - Includes 1 appendix N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; Angra dos Reis Meteorite; angrite; chromium; Cr-53/Cr-52; isotope ratios; isotopes; LEW 86010; Lewis Cliff Meteorites; metals; meteorites; Nd-143/Nd-142; neodymium; parent materials; radioactive isotopes; rare earths; samarium; SEM data; Sm-146/Sm-144; Sm-147/Nd-144; Sr-87/Sr-86; stable isotopes; stony meteorites; strontium ER - TY - JOUR T1 - Infrared diffuse reflectance spectra of carbonaceous chondrites; amount of hydrous minerals AN - 50191546; 1995-010321 AB - Infrared diffuse reflectance spectra (2.53-25 microns) of some carbonaceous (C) chondrites, including antarctic meteorites, were measured. The integrated intensity of the absorption bands near 3 microns caused by hydrous minerals was compared with the modal content of hydrous minerals for the meteorites. The CM and CI chondrites show larger values of the integrated intensity than those of the unique C chondrites Y82162, Y86720 and B7904, suggesting that the amount of hydrous minerals in the CM and CI chondrites is larger. This supports the contention that hydrous minerals were dehydrated by thermal metamorphism in the unique chondrites. Orgueil (CI) has the largest value of the integrated intensity among the C chondrites measured, and shows a sharp absorption band at 3685/cm (2.71 microns) that is not seen in the spectra of the CM chondrites. There is an excellent correlation between the observed hydrogen content in C chondrites and the integrated intensity. The CM chondrites show a wide variation in the strength of absorption bands at 1470/cm (6.8 microns), despite the similarity in absorption features near 3 microns for all CM chondrites. The 1470/cm band could be due to the presence of some hydrocarbons but may also be a result of terrestrial alteration processes. (Auth.) JF - Meteoritics AU - Miyamoto, M AU - Zolensky, M E Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 849 EP - 853 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 6 SN - 0026-1114, 0026-1114 KW - hydrates KW - meteorites KW - Allan Hills Meteorites KW - stony meteorites KW - CM chondrites KW - carbonaceous chondrites KW - chondrites KW - reflectance KW - ALHA 831 KW - ALHA 812 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50191546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Infrared+diffuse+reflectance+spectra+of+carbonaceous+chondrites%3B+amount+of+hydrous+minerals&rft.au=Miyamoto%2C+M%3BZolensky%2C+M+E&rft.aulast=Miyamoto&rft.aufirst=M&rft.date=1994-11-01&rft.volume=29&rft.issue=6&rft.spage=849&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 36 N1 - PubXState - AZ N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - ALHA 812; ALHA 831; Allan Hills Meteorites; carbonaceous chondrites; chondrites; CM chondrites; hydrates; meteorites; reflectance; stony meteorites ER - TY - JOUR T1 - New gravity model for earth science studies AN - 50189201; 1995-011009 JF - GSA Today AU - Heirtzler, J R AU - Frawley, J J Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 269 EP - 270 PB - Geological Society of America (GSA), Boulder, CO VL - 4 IS - 11 SN - 1052-5173, 1052-5173 KW - models KW - gravity anomalies KW - gravity field KW - Earth KW - subduction zones KW - mapping KW - satellites KW - ocean floors KW - geodesy KW - geoid KW - mid-ocean ridges KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50189201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=GSA+Today&rft.atitle=New+gravity+model+for+earth+science+studies&rft.au=Heirtzler%2C+J+R%3BFrawley%2C+J+J&rft.aulast=Heirtzler&rft.aufirst=J&rft.date=1994-11-01&rft.volume=4&rft.issue=11&rft.spage=269&rft.isbn=&rft.btitle=&rft.title=GSA+Today&rft.issn=10525173&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 5 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Earth; geodesy; geoid; gravity anomalies; gravity field; mapping; mid-ocean ridges; models; ocean floors; satellites; subduction zones ER - TY - JOUR T1 - Carbonates and sulfates in the Chassigny Meteorite; further evidence for aqueous chemistry on the SNC parent planet AN - 50187643; 1995-010323 AB - SEM and ED X-ray spectrometry of untreated interior chips from three different specimens of Chassigny confirm the presence of discrete grains of Ca-carbonate, Mg-carbonate, and Ca-sulphate. Morphologies of these grains suggest that the Ca-carbonate is calcite and that the Ca-sulphate is gypsum or bassanite. The Mg-carbonate has rhombohedral and acicular crystal habits suggesting magnesite and hydromagnesite, respectively. The salts occur as discontinuous veins in primary igneous minerals and are similar to those documented previously in Nakhla, Lafayette, and EETA79001. The Chassigny salts occur without associated ferric oxides or aluminosilicate clays unlike in the nakhlites. Traces of Cl and P are consistent with precipitation of the Chassigny salts from short-lived, saline, aqueous solutions that post-dated igneous crystallization. A pre-terrestrial origin for the Chassigny salts is ambiguous, but best explains the available evidence. They provide clear evidence that igneous amphiboles might have experienced isotopic-exchange reactions with near-surface water, thereby compromising the stable-isotope signature of magmatic water in melt inclusions. JF - Meteoritics AU - Wentworth, Susan J AU - Gooding, James L Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 860 EP - 863 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 6 SN - 0026-1114, 0026-1114 KW - stony meteorites KW - sulfates KW - Martian meteorites KW - chassignite KW - aqueous solutions KW - achondrites KW - SNC Meteorites KW - meteorites KW - mineral composition KW - parent materials KW - Chassigny Meteorite KW - carbonates KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50187643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Carbonates+and+sulfates+in+the+Chassigny+Meteorite%3B+further+evidence+for+aqueous+chemistry+on+the+SNC+parent+planet&rft.au=Wentworth%2C+Susan+J%3BGooding%2C+James+L&rft.aulast=Wentworth&rft.aufirst=Susan&rft.date=1994-11-01&rft.volume=29&rft.issue=6&rft.spage=860&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1995-01-01 N1 - Number of references - 16 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; aqueous solutions; carbonates; chassignite; Chassigny Meteorite; Martian meteorites; meteorites; mineral composition; parent materials; SEM data; SNC Meteorites; stony meteorites; sulfates ER - TY - JOUR T1 - Igneous petrology of the new ureilites Nova 001 and Nullarbor 010 AN - 50187594; 1995-010320 AB - Nova 001 and Nullarbor 010 are ureilites that both contain euhedral graphite crystals. They consist predominantly of olivine (Fo (sub 79) ), pigeonite (Wo (sub 9) En (sub 73) Fs (sub 18) ), and orthopyroxene (Wo (sub 3) En (sub 77) Fs (sub 20) ), with few % graphite and minor amounts of troilite, Fe,Ni metal, and possibly diamond. The rims of olivine grains are reduced, and contain abundant blebs of Fe metal. Euhedral graphite crystals (up to 1 X 0.3 mm) are present at silicate grain boundaries, along boundaries and protruding into the silicates, and entirely within silicate grains. They also occur as radiating clusters and groups of parallel plates embedded in olivine. Minute lumps within graphite grains are possibly diamond, inferred to be the result of shock. Both ureilites have been weathered significantly, and they are probably paired. The presence of euhedral graphite crystals within the silicate minerals is consistent with an igneous origin, and suggests that large proportions of silicate magma were present locally and crystallized in situ. JF - Meteoritics AU - Treiman, Allan H AU - Berkley, John L Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 843 EP - 848 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 6 SN - 0026-1114, 0026-1114 KW - silicates KW - stony meteorites KW - igneous rocks KW - Nullarbor Meteorite KW - olivine group KW - native elements KW - ureilite KW - achondrites KW - nesosilicates KW - meteorites KW - graphite KW - pyroxene group KW - mineral composition KW - olivine KW - orthosilicates KW - Nova Meteorite KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50187594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Igneous+petrology+of+the+new+ureilites+Nova+001+and+Nullarbor+010&rft.au=Treiman%2C+Allan+H%3BBerkley%2C+John+L&rft.aulast=Treiman&rft.aufirst=Allan&rft.date=1994-11-01&rft.volume=29&rft.issue=6&rft.spage=843&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1995-01-01 N1 - Number of references - 30 N1 - PubXState - AZ N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; chain silicates; graphite; igneous rocks; meteorites; mineral composition; native elements; nesosilicates; Nova Meteorite; Nullarbor Meteorite; olivine; olivine group; orthosilicates; pyroxene group; silicates; stony meteorites; ureilite ER - TY - JOUR T1 - Mineralogy of new Antarctic achondrites with affinity to Lodran and a model of their evolution in an asteroid AN - 50187255; 1995-010319 AB - Five new antarctic achondrites, MacAlpine Hills (MAC) 88177, Yamato (Y)74357, Y75274, Y791491 and Elephant Moraine (EET)84302 were studied by mineralogical techniques to gain a better understanding of the mineral assemblages of a group of meteorites with an affinity to Lodran (stony-iron meteorite) and their formation processes. This group is being called lodranites. These meteorites contain major coarse-grained orthopyroxene (Opx) and olivine as in Lodran and variable amounts of FeNi metal and troilite etc. MAC88177 has more augite and less FeNi than Lodran; Y74357 has more olivine and contains minor augite; Y791491 contains in addition plagioclase. EET84302 has an Acapulco-like chondritic mineral assemblage and is enriched in FeNi metal and plagioclase, but one part is enriched in Opx and chromite. The EET84302 and MAC88177 Opx crystals have dusty cores as in Acapulco. EET84302 and Y75274 are more Mg-rich than other members of the lodranite group, and Y74357 is intermediate. Since these meteorites all have coarse-grained textures, similar major mineral assemblages, variable amounts of augite, plagioclase, FeNi metal, chromite and olivine, the authors suggest that they are related and are linked to a parent body with modified chondritic composition. The variability of the abundances of these minerals is in line with a proposed model of the surface mineral assemblages of the S asteroids. (Auth. mod.) JF - Meteoritics AU - Takeda, Hiroshi AU - Mori, Hiroshi AU - Hiroi, Takahiro AU - Saito, Jun Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 830 EP - 842 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 6 SN - 0026-1114, 0026-1114 KW - stony irons KW - Yamato Meteorites KW - asteroids KW - Elephant Moraine Meteorites KW - MacAlpine Hills Meteorites KW - lodranite KW - meteorites KW - mineral composition KW - parent materials KW - S-type asteroids KW - MAC 88177 KW - mineral assemblages KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50187255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Mineralogy+of+new+Antarctic+achondrites+with+affinity+to+Lodran+and+a+model+of+their+evolution+in+an+asteroid&rft.au=Takeda%2C+Hiroshi%3BMori%2C+Hiroshi%3BHiroi%2C+Takahiro%3BSaito%2C+Jun&rft.aulast=Takeda&rft.aufirst=Hiroshi&rft.date=1994-11-01&rft.volume=29&rft.issue=6&rft.spage=830&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 51 N1 - PubXState - AZ N1 - Document feature - 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; Elephant Moraine Meteorites; lodranite; MAC 88177; MacAlpine Hills Meteorites; meteorites; mineral assemblages; mineral composition; parent materials; S-type asteroids; stony irons; Yamato Meteorites ER - TY - JOUR T1 - Evaluation of sulfur dioxide emissions from explosive volcanism: the 1982-1983 eruptions of Galunggung, Java, Indonesia AN - 50185805; 1995-010056 AB - Galunggung volcano, Java, awoke from a 63-year quiescence in April 1982, and erupted sporadically through January 1983. During its most violent period from April to October, the Cikasasah Volcano Observatory reported 32 large and 56 moderate to small eruptions. From April 5 through September 19 the Total Ozone Mapping Spectrometer (TOMS), carried on NASA's Nimbus-7 satellite, detected and measured 24 different sulfur dioxide clouds; an estimated 1730 kilotons (kt) of SO (sub 2) were outgassed by these explosive eruptions. The trajectories, and rapid dispersion rates, of the SO (sub 2) clouds were consistent with injection altitudes below the tropopause. An additional 300 kt of SO (sub 2) were estimated to have come from 64 smaller explosive eruptions, based on the detection limit of the TOMS instrument. For the first time, an extended period of volcanic activity was monitored by remote sensing techniques which enabled observations of both the entire SO (sub 2) clouds produced by large explosive eruptions (using TOMS), and the relatively lower levels of SO (sub 2) emissions during non-explosive outgassing (using the Correlation Spectrometer, or COSPEC). Based on COSPEC measurements from August 1982 to January 1983, and on the relationship between explosive and non-explosive degassing, approximately 400 kt of SO (sub 2) were emitted during non-explosive activity. The total sulfur dioxide outgassed from Galunggung volcano from April 1982 to January 1983 is calculated to be 2500 kt (+ or -30%) from both explosive and non-explosive activity. While Galunggung added large quantities of sulfur dioxide to the atmosphere, its sporadic emissions occurred in relatively small events distributed over several months, and reached relatively low altitudes, and are unlikely to have significantly affected aerosol loading of the stratosphere in 1982 by volcanic activity. JF - Journal of Volcanology and Geothermal Research AU - Bluth, G J S AU - Casadevall, T J AU - Schnetzler, C C AU - Doiron, S D AU - Walter, L S AU - Krueger, A J AU - Badruddin, M Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 243 EP - 256 PB - Elsevier, Amsterdam VL - 63 IS - 3-4 SN - 0377-0273, 0377-0273 KW - sulfur dioxide KW - Far East KW - Indonesia KW - atmosphere KW - Galunggung KW - distribution KW - Java KW - explosive eruptions KW - volcanism KW - eruptions KW - volcanoes KW - Asia KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50185805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Evaluation+of+sulfur+dioxide+emissions+from+explosive+volcanism%3A+the+1982-1983+eruptions+of+Galunggung%2C+Java%2C+Indonesia&rft.au=Bluth%2C+G+J+S%3BCasadevall%2C+T+J%3BSchnetzler%2C+C+C%3BDoiron%2C+S+D%3BWalter%2C+L+S%3BKrueger%2C+A+J%3BBadruddin%2C+M&rft.aulast=Bluth&rft.aufirst=G+J&rft.date=1994-11-01&rft.volume=63&rft.issue=3-4&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2F0377-0273%2894%2990077-9 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1995-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Asia; atmosphere; distribution; eruptions; explosive eruptions; Far East; Galunggung; geochemistry; Indonesia; Java; sulfur dioxide; volcanism; volcanoes DO - http://dx.doi.org/10.1016/0377-0273(94)90077-9 ER - TY - JOUR T1 - Trace-element partition coefficients for perovskite and hibonite in meteorite compositions AN - 50184768; 1995-009653 AB - The concentrations of 28 elements were measured using an ion microprobe in perovskite, hibonite and coexisting melts, in isothermal crystallization experiments on chemical compositions similar to those of Compact Type A (CTA) Ca-, Al-rich inclusions (CAI) and to a hibonite - glass microspherule. The mineral/melt partition coefficients (D) calculated from the measured concentrations for both minerals define reliable D-values. Perovskite and hibonite D's have ranges of 10 (super -2) for Si to 20 for Th and 3.10 (super -3) for Si to approximately 8 for La, respectively. There are regular relationships between the ionic radius, the valence of the trace element and the partition coefficients in perovskite and hibonite. While there are differences in the D-values between perovskite and hibonite, they follow very similar trends with perovskite typically having D-values that are 5-10 times higher for the same element. Perovskite and hibonite D's are almost identical for the divalent cations Ba (0.02 and 0.03, respectively) and Sr (1.1 and 0.8, respectively) in our experiments. D (sub Mg) for perovskite is low, 0.03, when compared with the value for hibonite, 0.5. Mineral/melt D's for the REE decrease continuously from D (sub La) = 6 to D (sub Lu) = 0.03 in hibonite. For perovskite, REE D's increase slightly from D (sub La) = 10 to D (sub Nd) = 15 and then decrease continuously to D (sub Lu) = 1.0 and D's for trivalent cations with smaller ionic radii than the REE are lower, with D (sub Al) = 0.08 and D (sub Sc) = 0.15 lower than D (sub Cr) = 0.8 and D (sub V) = 1.0. With the exception of D (sub Th) and D (sub Si) in perovskite and D (sub Si) in hibonite, the D-values for tetravalent cations and Nb, the only pentavalent element, fall within the range of D's for the REE. D (sub Th) /D (sub U) equals 3 in perovskite and approximately 15 in hibonite. Our data can be applied to the genesis and evolution of hibonite in refractory meteorite inclusions. For example, low Ba relative to other refractory elements, such as Hf, Zr, La, etc., in hibonite has been observed in some hibonite-bearing inclusions. Since D (sub Ba) 50 for hibonite, LREE/HREE ratios of 1 in hibonite in some CTA CAI from Leoville and Allende are inconsistent with hibonite equilibrating with the melts that formed these inclusions and the hibonite is relict. Similar applications are possible with our perovskite partitioning data. For example, it is likely that high-REE (500-1000Xchondritic) perovskite with Th/U of 3-4 that are found in the outer region of Type B1 CAI have not been in equilibrium with the CAI melt that contains approximately 20Xch REE and a Th/U ratio of 3 and they are probably relics that survived the most recent partial melting event. JF - Chemical Geology AU - Kennedy, A K AU - Lofgren, G E AU - Wasserburg, G J A2 - Foley, Stephen F. A2 - van der Laan, Sieger R. Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 379 EP - 390 PB - Elsevier, Amsterdam VL - 117 IS - 1-4 SN - 0009-2541, 0009-2541 KW - experimental studies KW - oxygen KW - ion probe data KW - calcium-aluminum inclusions KW - perovskite KW - mass spectra KW - hibonite KW - melts KW - fugacity KW - partitioning KW - meteorites KW - partition coefficients KW - major elements KW - phase equilibria KW - metals KW - inclusions KW - steady-state processes KW - oxides KW - spectra KW - rare earths KW - trace elements KW - synthesis 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/50184768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Trace-element+partition+coefficients+for+perovskite+and+hibonite+in+meteorite+compositions&rft.au=Kennedy%2C+A+K%3BLofgren%2C+G+E%3BWasserburg%2C+G+J&rft.aulast=Kennedy&rft.aufirst=A&rft.date=1994-11-01&rft.volume=117&rft.issue=1-4&rft.spage=379&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2F0009-2541%2894%2990139-2 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 - 1995-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Calif. Inst. Technol, Div. Geol. and Planet. Sci., Contrib. No. 6347(825) N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - calcium-aluminum inclusions; experimental studies; fugacity; hibonite; inclusions; ion probe data; major elements; mass spectra; melts; metals; meteorites; oxides; oxygen; partition coefficients; partitioning; perovskite; phase equilibria; rare earths; spectra; steady-state processes; synthesis; trace elements DO - http://dx.doi.org/10.1016/0009-2541(94)90139-2 ER - TY - JOUR T1 - Viscosity estimates for the crust and upper mantle from patterns of lacustrine shoreline deformation in the eastern Great Basin AN - 50181227; 1995-022086 AB - The deformed shorelines of Lake Bonneville constitute a classic source of information on lithospheric elastic thickness and upper mantle viscosity. We describe and apply a new model to a recently augmented data set. New data better constrain both the complex spatio-temporal pattern of the lake load and the crustal deformation response to that load. The history of lake level fluctuations has been significantly refined and somewhat modified. This is due to both more radiocarbon dates from within the Bonneville basin and to an improved calibration of the radiocarbon timescale itself. The data which constrain the crustal deformation pattern consist of ages and shoreline elevations from several hundred points which sample three major levels of Lake Bonneville and corresponding elevations from the high stands of three smaller lakes situated to the west of Lake Bonneville. The data from the smaller lakes help elucidate the pattern of deflection which occurred beyond the edge of the big lake. The geometry of the Earth model incorporates an arbitrary number of layers overlying a half-space, and the rheology of each level can accommodate an arbitrary number of Maxwell viscoelastic elements in parallel. The inverse modeling comprises three complementary approaches: for the simplest configurations, we performed a direct search of the parameter space and delineated the irregular boundary of the subspace of acceptable models. For more complex configurations, we constrained the elastic parameters to their seismically determined values and then solved for viscosity versus depth profiles by either expressing the log(viscosity) versus log(depth) profile as a series of specially constructed orthogonal polynomials, or by allowing each of 8-10 layers (plus the half-space) to have an independently determined viscosity. We found that the data do not strongly support (nor can they conclusively exclude) a more complex rheology than simple Maxwell viscoelasticity. The orthogonal polynomial solution exhibits an essentially monotonic decrease in viscosity with depth. The most rapid change occurs at shallow depths, decreasing from 10 (super 23) Pa s at 3 km to 10 (super 20) Pa s at 30 km. The decrease is much more gradual below, with only another factor of 5 decrease between 30 and 300 km depth. The unconstrained solution exhibits a rapid decrease in viscosity with depth from 2X10 (super 24) Pa s in the top 10 km to 4X10 (super 17) Pa s at a depth of 40 km. A nearly isoviscous asthenospheric region extends from 40 to 150 km and is underlain by a mantle lithospheric region with increased viscosity (2X10 (super 20) Pa s) extending from 150 to 300 km depth and by a uniform viscosity (10 (super 19) Pa s) half-space below. Copyright 1994 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Bills, Bruce G AU - Currey, Donald R AU - Marshall, Grant A Y1 - 1994/11// PY - 1994 DA - November 1994 SP - 22 EP - 22,086 PB - American Geophysical Union, Washington, DC VL - 99 IS - B11 SN - 0148-0227, 0148-0227 KW - United States KW - Basin and Range Province KW - isotopes KW - lakes KW - mantle KW - upper Pleistocene KW - isostasy KW - Cenozoic KW - radioactive isotopes KW - dates KW - rheology KW - carbon KW - absolute age KW - thickness KW - upper mantle KW - North America KW - shore features KW - Quaternary KW - Lake Bonneville KW - loading KW - lithosphere KW - Great Basin KW - shorelines KW - deformation KW - models KW - extinct lakes KW - viscosity KW - Pleistocene KW - C-14 KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Viscosity+estimates+for+the+crust+and+upper+mantle+from+patterns+of+lacustrine+shoreline+deformation+in+the+eastern+Great+Basin&rft.au=Bills%2C+Bruce+G%3BCurrey%2C+Donald+R%3BMarshall%2C+Grant+A&rft.aulast=Bills&rft.aufirst=Bruce&rft.date=1994-11-01&rft.volume=99&rft.issue=B11&rft.spage=22&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JB01192 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 97 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Basin and Range Province; C-14; carbon; Cenozoic; crust; dates; deformation; extinct lakes; Great Basin; isostasy; isotopes; Lake Bonneville; lakes; lithosphere; loading; mantle; models; North America; Pleistocene; Quaternary; radioactive isotopes; rheology; shore features; shorelines; thickness; United States; upper mantle; upper Pleistocene; viscosity DO - http://dx.doi.org/10.1029/94JB01192 ER - TY - JOUR T1 - Partial melting of apatite-bearing charnockite, granulite, and diorite; melt compositions, restite mineralogy, and petrologic implications AN - 50179460; 1995-022055 AB - Melting experiments (P = 6.9 kbar, T = 850-950 degrees C, NNO or = 6) were also detected in the IRB. As to the anomalous cosmic ray component (ACRC), in addition to C, N and O, anomalous iron particles were also recorded. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Ye, Z h AU - Chen, G f AU - Zhu, G w AU - Shen, S z AU - Liang, J b AU - Huang, H j AD - Center for Space Science and Applied Researchs Academia Sinica, Beijing, China. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 701 EP - 705 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Elements KW - 0 KW - Protons KW - Space life sciences KW - Chinese Satellite KW - unmanned KW - Flight Experiment KW - short duration KW - South America KW - Earth (Planet) KW - Atlantic Ocean KW - Solar Activity KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115630?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Up-to-date+observations+of+space+energetic+particles+made+by+the+Chinese+satellite+Fengyun-1+%28B%29.&rft.au=Ye%2C+Z+h%3BChen%2C+G+f%3BZhu%2C+G+w%3BShen%2C+S+z%3BLiang%2C+J+b%3BHuang%2C+H+j&rft.aulast=Ye&rft.aufirst=Z&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=701&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-27 N1 - Date created - 1997-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Significant proton events of solar cycle 22 and a comparison with events of previous solar cycles. AN - 77115585; 11540001 AB - The sun has produced several high energy and large fluence solar proton events during solar cycle 22. This recent activity is similar to activity that occurred in the 19th solar cycle before the advent of routine space measurements. In a review of the recent events and a comparison with significant solar proton events of previous solar cycles, it appears that the 20th and 21st solar cycles were deficient in the total fluence of solar particles as detected at the earth. Therefore, when models of maximum solar proton fluxes to be encountered for deep space missions are developed, solar proton data acquired during the present solar cycle should be incorporated. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Shea, M A AU - Smart, D F AD - Space Physics Division, Hanscom AFB, Bedford, MA 01731-3010, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 631 EP - 638 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - Magnetics KW - Earth (Planet) KW - Astronomy -- trends KW - Solar Activity KW - Astronomy -- instrumentation KW - Radiation Monitoring -- instrumentation KW - Astronomy -- statistics & numerical data UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115585?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Significant+proton+events+of+solar+cycle+22+and+a+comparison+with+events+of+previous+solar+cycles.&rft.au=Shea%2C+M+A%3BSmart%2C+D+F&rft.aulast=Shea&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=631&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of radiation on rat respiratory epithelial cells: critical target cell populations and the importance of cell-cell interactions. AN - 77115542; 11539993 AB - The oncongenic effects of radiation on rat respiratory tissues are modulated in vivo within the intact tissue. The degree of modulation as well as the mechanism whereby modulation occurs appears to be different for different types of ionizing radiations. A combined cell culture -in vivo model is described. This model has been developed to evaluate the influence of the host and tissue environment on development and expression of the neoplastic phenotype in irradiated rat trachea. Our data indicates that the potentially oncogenic effects of neutrons, X Rays, and alpha-particles are different depending on the exposure conditions employed and the conditions under which exposed cells are maintained following exposure. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Terzaghi-Howe, M AU - Ford, J AD - Oak Ridge National Laboratory, TN 37831-8077, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 565 EP - 572 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Polonium KW - DQY03U61EJ KW - Space life sciences KW - Rats KW - Radiation Dosage KW - Animals KW - X-Rays KW - Tumor Cells, Cultured KW - Epithelial Cells KW - Cells, Cultured KW - Radiation Injuries, Experimental KW - Cell Survival -- radiation effects KW - Epithelium -- radiation effects KW - Neutrons KW - Cell Transformation, Neoplastic -- radiation effects KW - Neoplasms, Radiation-Induced KW - Alpha Particles KW - Trachea -- cytology KW - Trachea -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115542?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Effects+of+radiation+on+rat+respiratory+epithelial+cells%3A+critical+target+cell+populations+and+the+importance+of+cell-cell+interactions.&rft.au=Terzaghi-Howe%2C+M%3BFord%2C+J&rft.aulast=Terzaghi-Howe&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=565&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Molecular analysis of mutagenesis by high LET radiation. AN - 77115491; 11539971 AB - Mutation induction by high linear energy transfer [LET] alpha particles and gamma-rays was scored in the human hamster hybrid [AL] cells. Southern blotting technique was used to analyse the molecular changes in the DNA from both the HGPRT- and S1- mutants. Dose dependent mutagenesis in the AL cells irradiated with the charged particles was higher by almost 20 fold at the S1 than the corresponding HGPRT locus. Southern analysis of the mutants induced by the high LET particles showed mostly multilocus deletion at both the HGPRT and S1 genes. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Hei, T K AU - Zhu, L X AU - Vannais, D AU - Waldren, C A AD - Center for Radiological Research, Columbia University, New York 10032, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 355 EP - 361 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Antigens, Surface KW - 0 KW - DNA, Complementary KW - Helium KW - 206GF3GB41 KW - Hypoxanthine Phosphoribosyltransferase KW - EC 2.4.2.8 KW - Space life sciences KW - Animals KW - Cosmic Radiation KW - DNA Damage KW - Humans KW - Antigens, Surface -- radiation effects KW - Dose-Response Relationship, Radiation KW - Antigens, Surface -- genetics KW - Risk Assessment KW - Gene Deletion KW - Fibroblasts KW - Chromosomes, Human, Pair 11 -- radiation effects KW - Relative Biological Effectiveness KW - Blotting, Southern KW - Particle Accelerators KW - CHO Cells KW - Cell Line KW - Cricetinae KW - Mutagenesis -- radiation effects KW - Hypoxanthine Phosphoribosyltransferase -- radiation effects KW - DNA, Complementary -- radiation effects KW - Hypoxanthine Phosphoribosyltransferase -- genetics KW - Gamma Rays KW - Alpha Particles KW - Hybrid Cells -- radiation effects KW - Cell Survival -- radiation effects KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115491?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Molecular+analysis+of+mutagenesis+by+high+LET+radiation.&rft.au=Hei%2C+T+K%3BZhu%2C+L+X%3BVannais%2C+D%3BWaldren%2C+C+A&rft.aulast=Hei&rft.aufirst=T&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=355&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mutation induction in yeast by very heavy ions. AN - 77115452; 11539969 AB - Resistance to canavanine was studied in haploid yeast after exposure to heavy ions (argon to uranium) of energies between 1 and 10 MeV/u covering a LET-range up to about 10000 keV/micrometer. Mutations were found in all instances but the induction cross sections increased with ion energy. This is taken to mean that the contribution of penumbra electrons plays an important role. The probability to recover surviving mutants is highest if the cell is not directly hit by the particle. The experiments demonstrate that the geometrical dimensions of the target cell nucleus as well as its sensitivity in terms of survival have a critical influence on mutation induction with very heavy ions. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kiefer, J AD - Strahlenzentrum der Justus-Liebig-Universitat, Giessen, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 331 EP - 338 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Ions KW - 0 KW - Lead KW - 2P299V784P KW - Xenon KW - 3H3U766W84 KW - Uranium KW - 4OC371KSTK KW - Argon KW - 67XQY1V3KH KW - Space life sciences KW - Cosmic Radiation KW - Particle Accelerators KW - Dose-Response Relationship, Radiation KW - Mutation KW - Linear Energy Transfer KW - Radiation, Ionizing KW - Saccharomyces cerevisiae -- genetics KW - Mutagenesis -- radiation effects KW - Saccharomyces cerevisiae -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115452?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Mutation+induction+in+yeast+by+very+heavy+ions.&rft.au=Kiefer%2C+J&rft.aulast=Kiefer&rft.aufirst=J&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mechanisms underlying cellular radiosensitivity and RBE: concluding remarks. AN - 77115424; 11539964 JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Lett, J T AD - Department of Radiological Health Sciences, Colorado State University, Fort Collins 80523, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 295 EP - 296 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Radiation Health KW - NASA Program NSCORT KW - NASA Discipline Number 04-10 KW - NASA Program Radiation Health KW - Non-NASA Center KW - Relative Biological Effectiveness KW - Radiation Tolerance KW - Cells -- radiation effects KW - Radiobiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Stoker%2C+C+R%3BGooding%2C+J+L%3BRoush%2C+T%3BBanin%2C+A%3BBurt%2C+Donald+M%3BClark%2C+Benton+C%3BFlynn%2C+G%3BGwynne%2C+Owen+E&rft.aulast=Stoker&rft.aufirst=C&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=The+physical+and+chemical+properties+and+resource+potential+of+Martian+surface+soils&rft.title=The+physical+and+chemical+properties+and+resource+potential+of+Martian+surface+soils&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Double strand breaks in the DNA of Bacillus subtilis cells irradiated by heavy ions. AN - 77115387; 11539952 AB - Cells of Bacillus subtilis strain TKJ 8431 in stationary phase were irradiated with X-rays (150 kV at DLR) or heavy ions (Ne, Ar, Pb with residual energies between 3 and 15 MeV/u at GSI). The action cross section for the formation of double strand breaks in the DNA of the irradiated cells follows a similar dependence on mass and energy of the ions as has been found for various biological endpoints, e.g. inactivation, mutagenesis and repair efficacy. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Micke, U AU - Horneck, G AU - Kozubek, S AD - DLR, Institute of Aerospace Medicine, Koln, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 207 EP - 211 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA, Bacterial KW - 0 KW - Lead KW - 2P299V784P KW - Neon KW - 4VB4Y46AHD KW - Argon KW - 67XQY1V3KH KW - Space life sciences KW - X-Rays KW - Particle Accelerators KW - Electrophoresis, Gel, Pulsed-Field KW - Dose-Response Relationship, Radiation KW - Mutation KW - Bacillus subtilis -- genetics KW - DNA Damage KW - Bacillus subtilis -- radiation effects KW - Radiation, Ionizing KW - DNA, Bacterial -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115387?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Double+strand+breaks+in+the+DNA+of+Bacillus+subtilis+cells+irradiated+by+heavy+ions.&rft.au=Micke%2C+U%3BHorneck%2C+G%3BKozubek%2C+S&rft.aulast=Micke&rft.aufirst=U&rft.date=1994-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=Utilizing+Martian+resources+for+life+support&rft.title=Utilizing+Martian+resources+for+life+support&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Behavioral endpoints for radiation injury. AN - 77115023; 11539983 AB - The relative behavioral effectiveness of heavy particles was evaluated. Using the taste aversion paradigm in rats, the behavioral toxicity of most types of radiation (including 20Ne and 40Ar) was similar to that of 60Co photons. Only 56Fe and 93Nb particles and fission neutrons were significantly more effective. Using emesis in ferrets as the behavioral endpoint, 56Fe particles and neutrons were again the most effective; however, 60Co photons were significantly more effective than 18 MeV electrons. These results suggest that LET does not completely predict behavioral effectiveness. Additionally, exposing rats to 10 cGy of 56Fe particles attenuated amphetamine-induced taste aversion learning. This behavior is one of a broad class of behaviors which depends on the integrity of the dopaminergic system and suggests the possibility of alterations in these behaviors following exposure to heavy particles in a space radiation environment. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Rabin, B M AU - Joseph, J A AU - Hunt, W A AU - Dalton, T B AU - Kandasamy, S B AU - Harris, A H AU - Ludewigt, B AD - Behavioral Sciences Department, Armed Forces Radiobiology Research Institute, Bethesda, MD 20889, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 457 EP - 466 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Central Nervous System Stimulants KW - 0 KW - Dopamine Antagonists KW - Dopamine Uptake Inhibitors KW - Niobium KW - 05175J654G KW - Helium KW - 206GF3GB41 KW - Neon KW - 4VB4Y46AHD KW - Argon KW - 67XQY1V3KH KW - Amphetamine KW - CK833KGX7E KW - Iron KW - E1UOL152H7 KW - Lithium Chloride KW - G4962QA067 KW - Haloperidol KW - J6292F8L3D KW - Dopamine KW - VTD58H1Z2X KW - Space life sciences KW - Animals KW - Central Nervous System Stimulants -- pharmacology KW - Vomiting KW - Gamma Rays KW - Dopamine Antagonists -- pharmacology KW - Dopamine -- metabolism KW - Dose-Response Relationship, Radiation KW - Taste KW - Rats KW - Neutrons KW - Relative Biological Effectiveness KW - Particle Accelerators KW - Ferrets KW - Haloperidol -- pharmacology KW - Lithium Chloride -- pharmacology KW - Linear Energy Transfer KW - Amphetamine -- pharmacology KW - Dopamine Uptake Inhibitors -- pharmacology KW - Behavior, Animal -- drug effects KW - Cosmic Radiation KW - Avoidance Learning -- radiation effects KW - Avoidance Learning -- drug effects KW - Behavior, Animal -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115023?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Behavioral+endpoints+for+radiation+injury.&rft.au=Rabin%2C+B+M%3BJoseph%2C+J+A%3BHunt%2C+W+A%3BDalton%2C+T+B%3BKandasamy%2C+S+B%3BHarris%2C+A+H%3BLudewigt%2C+B&rft.aulast=Rabin&rft.aufirst=B&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=457&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of 40Ar and 56Fe ions on retinal photoreceptor cells of the rabbit: implications for manned missions to Mars. AN - 77114908; 11539955 AB - Losses of photoreceptor cells (rods) from the retinas of New Zealand white (NZW) rabbits were detectable within 2 years after localized acute irradiation of optic and proximal tissues with > or = 7 Gy of 530 MeV u-1 40Ar ions or > or = 2 Gy of 465 MeV u-1 56Fe ions in the Bragg plateau region of energy deposition. Those limits were determined only from an analysis of variance of dose groups because the shapes of the dose response curves at early post-irradiation times are not known, a concern being addressed by experiments in progress. Losses of photoreceptor cells for the period 0.5-2.5 years post-irradiation, determined by provisional linear regression analysis, were approximately 1.7% Gy-1 and 2.5% Gy-1 for 40Ar and 56Fe ions, respectively. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Williams, G R AU - Lett, J T AD - Department of Radiological Health Sciences, Colorado State University, Fort Collins 80523, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 217 EP - 220 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Argon KW - 67XQY1V3KH KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Program Radiation Health KW - Non-NASA Center KW - Animals KW - Analysis of Variance KW - Particle Accelerators KW - Rabbits KW - Dose-Response Relationship, Radiation KW - Time Factors KW - Linear Energy Transfer KW - Retina -- cytology KW - Photoreceptor Cells -- radiation effects KW - Retina -- radiation effects KW - Cosmic Radiation -- adverse effects KW - Radiation, Ionizing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77114908?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Effects+of+40Ar+and+56Fe+ions+on+retinal+photoreceptor+cells+of+the+rabbit%3A+implications+for+manned+missions+to+Mars.&rft.au=Williams%2C+G+R%3BLett%2C+J+T&rft.aulast=Williams&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of heavy ions on inactivation and DNA double strand breaks in Deinococcus radiodurans R1. AN - 77114854; 11539954 AB - Inactivation and double strand break (dsb) induction after heavy ion irradiation were studied in stationary phase cells of the highly radiation resistant bacterium Deinococcus radiodurans R1. There is evidence that the radiation sensitivity of this bacterium is nearly independent on energy in the range of up to 15 MeV/u for lighter ions (Ar). The responses to dsb induction for charged particles show direct relationship between increasing radiation dose and residual intact DNA. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Zimmermann, H AU - Schafer, M AU - Schmitz, C AU - Bucker, H AD - DLR, Institute of Aerospace Medicine, Koln, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 213 EP - 216 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA, Bacterial KW - 0 KW - Lead KW - 2P299V784P KW - Argon KW - 67XQY1V3KH KW - Nickel KW - 7OV03QG267 KW - Space life sciences KW - Particle Accelerators KW - Electrophoresis, Gel, Pulsed-Field KW - Radiation Tolerance KW - Dose-Response Relationship, Radiation KW - DNA Damage KW - Gram-Positive Cocci -- radiation effects KW - Gram-Positive Cocci -- genetics KW - Radiation, Ionizing KW - DNA, Bacterial -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77114854?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Effects+of+heavy+ions+on+inactivation+and+DNA+double+strand+breaks+in+Deinococcus+radiodurans+R1.&rft.au=Zimmermann%2C+H%3BSchafer%2C+M%3BSchmitz%2C+C%3BBucker%2C+H&rft.aulast=Zimmermann&rft.aufirst=H&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Long-term survival of bacterial spores in space. AN - 77114762; 11539977 AB - On board of the NASA Long Duration Exposure Facility (LDEF), spores of Bacillus subtilis in monolayers (10(6)/sample) or multilayers (10(8)/sample) were exposed to the space environment for nearly six years and their survival was analyzed after retrieval. The response to space parameters, such as vacuum (10(-6) Pa), solar electromagnetic radiation up to the highly energetic vacuum-ultraviolet range (10(9) J/m2) and/or cosmic radiation (4.8 Gy), was studied and compared to the results of a simultaneously running ground control experiment. If shielded against solar ultraviolet (UV)-radiation, up to 80 % of spores in multilayers survive in space. Solar UV-radiation, being the most deleterious parameter of space, reduces survival by 4 orders of magnitude or more. However, up to 10(4) viable spores were still recovered, even in completely unprotected samples. Substances, such as glucose or buffer salts serve as chemical protectants. With this 6 year study in space, experimental data are provided to the discussion on the likelihood of "Panspermia". JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Horneck, G AU - Bucker, H AU - Reitz, G AD - DLR, Institute of Aerospace Medicine, Biophysics Division, Koln, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 41 EP - 45 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - long duration KW - LDEF Project KW - Spores, Bacterial -- growth & development KW - Vacuum KW - Radiation Tolerance KW - Spores, Bacterial -- radiation effects KW - Spacecraft KW - Ultraviolet Rays KW - Radiation Protection KW - Cosmic Radiation KW - Bacillus subtilis -- growth & development KW - Space Flight KW - Bacillus subtilis -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77114762?accountid=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=Transactions+of+the+Kansas+Academy+of+Science.+Kansas+Academy+of+Science&rft.atitle=Preliminary+observations+on+the+effects+of+selenate+on+the+development+of+the+embryonic+skate%2C+Raja+eglanteria.&rft.au=Conrad%2C+G+W%3BLuer%2C+C+A%3BPaulsen%2C+A+Q%3BFunderburgh%2C+J+L&rft.aulast=Conrad&rft.aufirst=G&rft.date=1993-01-01&rft.volume=96&rft.issue=1-2&rft.spage=62&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+Kansas+Academy+of+Science.+Kansas+Academy+of+Science&rft.issn=00228443&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mutagenic effects of heavy ion radiation in plants. AN - 77113959; 11539972 AB - Genetic and developmental effects of heavy ions in maize and rice were investigated. Heavy particles with various charges and energies were accelerated at the BEVALAC. The frequency of occurrence of white-yellow stripes on leaves of plants developed from irradiated maize seeds increased linearly with dose, and high-LET heavy charged particles, e.g., neon, argon, and iron, were 2-12 times as effective as gamma rays in inducing this type of mutation. The effectiveness of high-LET heavy ion in (1) inhibiting rice seedling growth, (2) reducing plant fertility, (3) inducing chromosome aberration and micronuclei in root tip cells and pollen mother cells of the first generation plants developed from exposed seeds, and (4) inducing mutation in the second generation, were greater than that of low-LET gamma rays. All effects observed were dose-dependent; however, there appeared to be an optimal range of doses for inducing certain types of mutation, for example, for argon ions (400 MeV/u) at 90-100 Gy, several valuable mutant lines with favorable characters, such as semidwarf, early maturity and high yield ability, were obtained. Experimental results suggest that the potential application of heavy ions in crop improvement is promising. RFLP analysis of two semidwarf mutants induced by argon particles revealed that large DNA alterations might be involved in these mutants. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Mei, M AU - Deng, H AU - Lu, Y AU - Zhuang, C AU - Liu, Z AU - Qiu, Q AU - Qiu, Y AU - Yang, T C AD - South China Agricultural University, Guangzhou. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 363 EP - 372 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Cobalt Radioisotopes KW - 0 KW - Ions KW - Argon KW - 67XQY1V3KH KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Center JSC KW - NASA Program Radiation Health KW - Germination KW - Relative Biological Effectiveness KW - Particle Accelerators KW - Chromosome Aberrations KW - Genes, Plant KW - Dose-Response Relationship, Radiation KW - Linear Energy Transfer KW - Seeds -- genetics KW - Mutation -- radiation effects KW - Oryza -- genetics KW - Mutagenesis KW - Plant Leaves -- anatomy & histology KW - Oryza -- growth & development KW - Oryza -- radiation effects KW - Plant Leaves -- growth & development KW - Zea mays -- radiation effects KW - Plant Leaves -- genetics KW - Seeds -- radiation effects KW - Zea mays -- genetics KW - Zea mays -- growth & development KW - Radiation, Ionizing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113959?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Mutagenic+effects+of+heavy+ion+radiation+in+plants.&rft.au=Mei%2C+M%3BDeng%2C+H%3BLu%2C+Y%3BZhuang%2C+C%3BLiu%2C+Z%3BQiu%2C+Q%3BQiu%2C+Y%3BYang%2C+T+C&rft.aulast=Mei&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=363&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Repair of DNA double-strand breaks and its effect on RBE. AN - 77113878; 11539957 AB - DNA double-strand breaks (DSB) are induced linearly with absorbed dose both for sparsely and densely ionizing radiations. By enzymatic repair the linear relationship between the number of DSB and absorbed dose is converted into a non linear one. Furthermore, the RBE-values of high LET radiations for residual DSB increase with increasing amount of DSB repair especially in the low dose range. Unrepaired and/or misrepaired DSB are supposed to be responsible for chromosomal aberrations, cell killing, oncogenic cell transformation and gene mutation. At low doses, for these endpoints much higher RBE-values than those for initial DSB are observed. However, with increasing doses the RBE-values for these endpoints approach those for initial DSB. These observations are likely to be interpreted using the following two parameters of the energy deposition structure: 1. The distribution of clusters with respect to their size at the nm-scale and to the number of ionizations per cluster (cluster distribution). 2. The distribution of distances between clusters of definite size and with definite number of ionizations (distance distribution of clusters). For the induction of DSB solely the ionization density in clusters of nm-dimensions (i.e. the cluster distribution) is important. For unrepaired or misrepaired DSB (responsible for chromosome aberrations, cell killing, oncogenic cell transformation and gene mutation) both the cluster distribution and the distance distribution of clusters are relevant. At low doses the distance distribution of clusters along a single particle track determines the RBE-value. However, with increasing dose the distribution of clusters produced by all particles traversing the cell nucleus becomes increasingly determinant. Here, solely the cluster distribution is important as it is the case for the induction of DSB. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Frankenberg, D AD - Abteilung Klinische Strahlenbiologie und Klinische Strahlenphysik, Universitat Gottingen, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 235 EP - 248 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA, Fungal KW - 0 KW - DNA KW - 9007-49-2 KW - Space life sciences KW - Animals KW - Relative Biological Effectiveness KW - Electrons KW - Cell Transformation, Neoplastic -- radiation effects KW - Humans KW - Yeasts -- genetics KW - Yeasts -- radiation effects KW - Dose-Response Relationship, Radiation KW - Cell Survival -- radiation effects KW - Yeasts -- cytology KW - Mutation KW - Linear Energy Transfer KW - Radiation, Ionizing KW - Fibroblasts KW - DNA, Fungal -- radiation effects KW - DNA Repair KW - Photons KW - DNA Damage KW - Alpha Particles KW - DNA -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113878?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Repair+of+DNA+double-strand+breaks+and+its+effect+on+RBE.&rft.au=Frankenberg%2C+D&rft.aulast=Frankenberg&rft.aufirst=D&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comparison of model predictions with LDEF satellite radiation measurements. AN - 77113829; 11539949 AB - Some early results are summarized from a program under way to utilize LDEF satellite data for evaluating and improving current models of the space radiation environment in low Earth orbit. Reported here are predictions and comparisons with some of the LDEF dose and induced radioactivity data, which are used to check the accuracy of current models describing the magnitude and directionality of the trapped proton environment. Preliminary findings are that the environment models underestimate both dose and activation from trapped protons by a factor of about two, and the observed anisotropy is higher than predicted. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Armstrong, T W AU - Colborn, B L AU - Harmon, B A AU - Parnell, T A AU - Watts, J W AU - Benton, E V AD - Science Applications International Corporation, Prospect, TN, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 17 EP - 20 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - NASA Discipline Radiation Health KW - unmanned KW - Flight Experiment KW - NASA Discipline Number 04-10 KW - long duration KW - LDEF Project KW - NASA Program Radiation Health KW - Non-NASA Center KW - Thermoluminescent Dosimetry KW - Radiation Dosage KW - Solar Activity KW - Radiometry KW - Cosmic Radiation KW - Forecasting KW - Radiation Protection -- instrumentation KW - Space Flight -- instrumentation KW - Spacecraft KW - Radiation Monitoring -- instrumentation KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113829?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Comparison+of+model+predictions+with+LDEF+satellite+radiation+measurements.&rft.au=Armstrong%2C+T+W%3BColborn%2C+B+L%3BHarmon%2C+B+A%3BParnell%2C+T+A%3BWatts%2C+J+W%3BBenton%2C+E+V&rft.aulast=Armstrong&rft.aufirst=T&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Haemopoietic cell renewal in radiation fields. AN - 77113134; 11539991 AB - Space flight activities are inevitably associated with a chronic exposure of astronauts to a complex mixture of ionising radiation. Although no acute radiation consequences are to be expected as a rule, the possibility of Solar Particle Events (SPE) associated with relatively high doses of radiation (1 or more Gray) cannot be excluded. It is the responsibility of physicians in charge of the health of astronauts to evaluate before, during and after space flight activities the functional status of haemopoietic cell renewal. Chronic low level exposure of dogs indicate that daily gamma-exposure doses below about 2 cGy are tolerated for several years as far as blood cell concentrations are concerned. However, the stem cell pool may be severely affected. The maintenance of sufficient blood cell counts is possible only through increased cell production to compensate for the radiation inflicted excess cell loss. This behaviour of haemopoietic cell renewal during chronic low level exposure can be simulated by bioengineering models of granulocytopoiesis. It is possible to define a "turbulence region" for cell loss rates, below which an prolonged adaptation to increased radiation fields can be expected to be tolerated. On the basis of these experimental results, it is recommended to develop new biological indicators to monitor haemopoietic cell renewal at the level of the stem cell pool using blood stem cells in addition to the determination of cytokine concentrations in the serum (and other novel approaches). To prepare for unexpected haemopoietic effects during prolonged space missions, research should be increased to modify the radiation sensitivity of haemopoietic stem cells (for instance by the application of certain regulatory molecules). In addition, a "blood stem cell bank" might be established for the autologous storage of stem cells and for use in space activities keeping them in a radiation protected container. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Fliedner, T M AU - Nothdurft, W AU - Tibken, B AU - Hofer, E AU - Weiss, M AU - Kindler, H AD - Department of Clinical Physiology, Occupational and Social Medicine, University of Ulm (Donau), Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 541 EP - 554 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Rats KW - Radiation Dosage KW - Animals KW - Space Flight KW - Humans KW - Dogs KW - Aerospace Medicine KW - Radiation Tolerance KW - Dose-Response Relationship, Radiation KW - Mathematics KW - Hematopoiesis -- physiology KW - Solar Activity KW - Gamma Rays KW - Hematopoiesis -- radiation effects KW - Cosmic Radiation KW - Blood Cells -- radiation effects KW - Bone Marrow -- radiation effects KW - Models, Biological KW - Blood Cells -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113134?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Haemopoietic+cell+renewal+in+radiation+fields.&rft.au=Fliedner%2C+T+M%3BNothdurft%2C+W%3BTibken%2C+B%3BHofer%2C+E%3BWeiss%2C+M%3BKindler%2C+H&rft.aulast=Fliedner&rft.aufirst=T&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=541&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Anatomical models for space radiation applications: an overview. AN - 77113088; 11539978 AB - Extremely detailed computerized anatomical male (CAM) and female (CAF) models that have been developed for use in space radiation analyses are discussed and reviewed. Recognizing that the level of detail may currently be inadequate for certain radiological applications, one of the purposes of this paper is to elicit specific model improvements or requirements from the scientific user-community. Methods and rationale are presented which describe the approach used in the Space Shuttle program to extrapolate dosimetry measurements (skin doses) to realistic astronaut body organ doses. Several mission scenarios are presented which demonstrate the utility of the anatomical models for obtaining specific body organ exposure estimates and can be used for establishing cancer morbidity and mortality risk assessments. These exposure estimates are based on the trapped Van Allen belt and galactic cosmic radiation environment models and data from the major historical solar particle events. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Atwell, W AD - Rockwell International, Space Systems Division, Houston, TX 77058, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 415 EP - 422 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - manned KW - Flight Experiment KW - short duration KW - STS Shuttle Project KW - Software KW - Radiation Dosage KW - Radiometry KW - Maximum Allowable Concentration KW - Humans KW - Radiobiology KW - Male KW - Female KW - Radiation Protection -- standards KW - Phantoms, Imaging KW - Computer Simulation KW - Solar Activity KW - Cosmic Radiation KW - Space Flight KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113088?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Anatomical+models+for+space+radiation+applications%3A+an+overview.&rft.au=Atwell%2C+W&rft.aulast=Atwell&rft.aufirst=W&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Dictyostelium discoideum, a lower eukaryote model for the study of DNA repair: implications for the role of DNA-damaging chemicals in the evolution of repair proficient cells. AN - 77113044; 11539974 AB - The evolution of the ability of living cells to cope with stress is crucial for the maintenance of their genetic integrity. Yet low levels of mutation must remain to allow adaptation to environmental changes. The cellular slime mold D. discoideum is a good system for studying molecular aspects of the repair of lethal and mutagenic damage to DNA by radiation and chemicals. The wild-type strains of this soil microorganism are extremely resistant to DNA damaging agents. In nature the amoeboid cells in their replicative stage feed on soil bacteria and are exposed to numerous DNA-damaging chemicals produced by various soil microorganisms. It is probable that the evolution of repair systems in this organism and perhaps in others is a consequence of the necessity to cope with chemical damage which also confers resistance to radiation. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Deering, R A AD - Department of Molecular and Cell Biology, The Pennsylvania State University, University Park 16802, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 389 EP - 393 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA, Fungal KW - 0 KW - Bleomycin KW - 11056-06-7 KW - Space life sciences KW - Mutation -- drug effects KW - Animals KW - Biological Evolution KW - Radiation Tolerance KW - Colony Count, Microbial KW - Dictyostelium -- genetics KW - Bleomycin -- pharmacology KW - DNA Damage KW - Dictyostelium -- drug effects KW - Dictyostelium -- growth & development KW - DNA Repair -- drug effects KW - Mutagenesis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113044?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Dictyostelium+discoideum%2C+a+lower+eukaryote+model+for+the+study+of+DNA+repair%3A+implications+for+the+role+of+DNA-damaging+chemicals+in+the+evolution+of+repair+proficient+cells.&rft.au=Deering%2C+R+A&rft.aulast=Deering&rft.aufirst=R&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=389&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Changes in whole-body metabolic parameters associated with radiation. AN - 77113006; 11539990 AB - Continuous irradiation of experimental animals is an appropriate model for the research in space radiobiology. The onset and recovery of radiation injury can be estimated on the basis of the concentration/content of glycogen in liver, the phospholipid content in thymus and other radiosensitive organs and the triacylglycerol concentration in bone marrow. Further, the picture of the metabolism in irradiated organism may be completed by the analysis of serum glucocorticoid and thyroid hormone levels. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Ahlers, I AD - Institute of Animal Physiology, P.J. Safarik University, Kosice, Czech Republic. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 531 EP - 539 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Blood Glucose KW - 0 KW - Fatty Acids, Nonesterified KW - Phospholipids KW - Triglycerides KW - Glycogen KW - 9005-79-2 KW - Cholesterol KW - 97C5T2UQ7J KW - Space life sciences KW - Triglycerides -- blood KW - Radiation Dosage KW - Animals KW - Glycogen -- radiation effects KW - Blood Glucose -- metabolism KW - Gamma Rays KW - Thymus Gland -- metabolism KW - Liver -- metabolism KW - Fatty Acids, Nonesterified -- radiation effects KW - Rats KW - Cholesterol -- blood KW - Cholesterol -- radiation effects KW - Glycogen -- metabolism KW - Triglycerides -- radiation effects KW - Cholesterol -- metabolism KW - Triglycerides -- metabolism KW - Thymus Gland -- radiation effects KW - Rats, Wistar KW - Blood Glucose -- radiation effects KW - Male KW - Liver -- radiation effects KW - Fatty Acids, Nonesterified -- metabolism KW - Phospholipids -- blood KW - Phospholipids -- radiation effects KW - Whole-Body Irradiation KW - Phospholipids -- metabolism KW - Bone Marrow -- metabolism KW - Radiation Injuries, Experimental KW - Bone Marrow -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113006?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Changes+in+whole-body+metabolic+parameters+associated+with+radiation.&rft.au=Ahlers%2C+I&rft.aulast=Ahlers&rft.aufirst=I&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Overview of the space environmental effects observed on the retrieved Long Duration Exposure Facility (LDEF). AN - 77112991; 11540010 AB - The Long Duration Exposure Facility (LDEF), which encompassed 57 experiments with more than 10,000 test specimens, spent 69 months in low Earth orbit (LEO) before it was retrieved by the Space Shuttle in January 1990. Hundreds of LDEF investigators, after studying for over two years these retrieved test specimens and the onboard recorded data and systems hardware, have generated a unique first-hand view of the long term synergistic effects that the LEO environment can have on spacecraft. These studies have also contributed significantly toward more accurate models of the LEO radiation, meteoroid, manmade debris and atomic oxygen environments. This paper provides an overview of some of the many LDEF observations and the implications these can have on future spacecraft such as Space Station Freedom. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kinard, W AU - O'Neal, R AU - Wilson, B AU - Jones, J AU - Levine, A AU - Calloway, R AD - NASA Langley Research Center, Hampton, VA 23681, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 7 EP - 16 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Aluminum KW - CPD4NFA903 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - long duration KW - LDEF Project KW - Meteoroids KW - Databases, Factual KW - Aluminum -- radiation effects KW - Materials Testing KW - Radiation, Ionizing KW - Space Flight -- instrumentation KW - Spacecraft KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112991?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Overview+of+the+space+environmental+effects+observed+on+the+retrieved+Long+Duration+Exposure+Facility+%28LDEF%29.&rft.au=Kinard%2C+W%3BO%27Neal%2C+R%3BWilson%2C+B%3BJones%2C+J%3BLevine%2C+A%3BCalloway%2C+R&rft.aulast=Kinard&rft.aufirst=W&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Overview on experience to date on human exposure to space radiations. AN - 77112948; 11539975 AB - The human exposure in space depends on the three factors: the flight trajectory, its date and duration and the cyclogram of the cosmonaut's activities. In the near-Earth orbits the daily dose varies within the limits of (1.5-5.0) 10(-4) Gy day-1 and greatly increases if the altitude increases. The mean daily quality factor is 1.6-2.0. Strong solar proton events in the orbits with the inclination of < 52 degrees result in the dose rate increase up to 2-3 cGy day-1. On the surface of the orbital spacecrafts the daily dose reaches 2 Gy. The neutron dose depends on the shielding mass distribution varying within the limits of 6%-30% of the charged particles dose. In deep space the dose is mainly formed by the galactic and solar cosmic rays(GCR,SCR). Behind the shielding of 2-3 g cm-2 Al the GCR dose varies in the range of (20-30) 10(-5) Gy day-1. The SCR dose can reach hundreds of cSv. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Petrov, V M AD - Institute of Biomedical Problems, Moscow, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 397 EP - 408 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - manned KW - unmanned KW - Flight Experiment KW - Cosmos 1887 Project KW - Salyut Project KW - Zond 7 Project KW - short duration KW - long duration KW - Thermoluminescent Dosimetry KW - Phantoms, Imaging KW - Radiation Dosage KW - Relative Biological Effectiveness KW - Radiation Protection KW - Maximum Allowable Concentration KW - Humans KW - Spacecraft -- standards KW - Linear Energy Transfer KW - Electrons KW - Solar Activity KW - Cosmic Radiation KW - Space Flight -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112948?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Overview+on+experience+to+date+on+human+exposure+to+space+radiations.&rft.au=Petrov%2C+V+M&rft.aulast=Petrov&rft.aufirst=V&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=397&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - First radiobiological results of LDEF-1 experiment A0015 with Arabidopsis seed embryos and Sordaria fungus spores. AN - 77112942; 11539984 AB - This article highlights the first results of investigations on the general vitality and damage endpoints caused by cosmic ionizing radiation in dry, dormant plant seeds of the crucifer plant Arabidopsis thaliana (L.) Heynh. and the ascomycete Sordaria fimicola after 69 month stay in space. Wild-type and mutant gene marker lines were included in Free Flyer Biostack containers and exposed on earth and side tray of the LDEF-1 satellite. The damage in biological endpoints observed in the seeds increased in the side tray sample compared to the earth tray sample. For the ascospores we found different effects depending on the biological endpoints investigated for both expositions. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Zimmermann, M W AU - Gartenbach, K E AU - Kranz, A R AD - Botanical Institute, Johann Wolfgang Goethe University, Frankfurt/Main, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 47 EP - 51 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - long duration KW - LDEF Project KW - Radiation Protection KW - Spores, Fungal -- genetics KW - Spores, Fungal -- growth & development KW - Genes, Plant KW - Spores, Fungal -- radiation effects KW - Spacecraft KW - Mutation KW - Germination -- radiation effects KW - Arabidopsis -- genetics KW - Ascomycota -- radiation effects KW - Cosmic Radiation KW - Arabidopsis -- radiation effects KW - Space Flight KW - Arabidopsis -- growth & development KW - Ascomycota -- genetics KW - Seeds -- genetics KW - Ascomycota -- growth & development KW - Seeds -- growth & development KW - Seeds -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112942?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=First+radiobiological+results+of+LDEF-1+experiment+A0015+with+Arabidopsis+seed+embryos+and+Sordaria+fungus+spores.&rft.au=Zimmermann%2C+M+W%3BGartenbach%2C+K+E%3BKranz%2C+A+R&rft.aulast=Zimmermann&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - RBE: mechanisms inferred from cytogenetics. AN - 77112906; 11539958 AB - Cyclotron-accelerated heavy ion beams provide a fine degree of control over the physical parameters of radiation. Cytogenetics affords a view into the irradiated cell at the resolution of chromosomes. Combined they form a powerful means to probe the mechanisms of RBE. Cytogenetic studies with high energy heavy ion beams reveal three LET-dependent trends for 1) level of initial damage, 2) distribution of damage among cells, and 3) lesion severity. The number of initial breaks per unit dose increases from a low-LET plateau to a peak at approximately 180 keV/micrometer and declines thereafter. Overdispersion of breaks is significant above approximately 100 keV/micrometer. Lesion severity, indicated by the level of chromosomal fragments that have not restituted even after long repair times, increases with LET. Similar studies with very low energy 238Pu alpha particles (120 keV/micrometer) reveal higher levels of initial breakage per unit dose, fewer residual fragments and a higher level of misrepair when compared to high energy heavy ions at the same LET. These observations would suggest that track structure is an important factor in genetic damage in addition to LET. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Goodwin, E H AU - Cornforth, M N AD - Los Alamos National Laboratory, Life Sciences Division, Los Alamos, NM 87545, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 249 EP - 255 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Chromatin KW - 0 KW - Space life sciences KW - Animals KW - Relative Biological Effectiveness KW - Cosmic Radiation KW - Humans KW - Cyclotrons KW - CHO Cells KW - Linear Energy Transfer KW - Cell Line KW - Risk Assessment KW - Fibroblasts KW - Cytogenetics KW - Cricetinae KW - DNA Repair KW - Chromatin -- radiation effects KW - DNA Damage KW - Chromosome Aberrations KW - Alpha Particles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112906?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=RBE%3A+mechanisms+inferred+from+cytogenetics.&rft.au=Goodwin%2C+E+H%3BCornforth%2C+M+N&rft.aulast=Goodwin&rft.aufirst=E&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Survival of irradiated mice treated with WR-151327, synthetic trehalose dicorynomycolate, or ofloxacin. AN - 77112536; 11539995 AB - Spaceflight personnel need treatment options that would enhance survival from radiation and would not disrupt task performance. Doses of prophylactic or therapeutic agents known to induce significant short-term (30-day) survival with minimal behavioral (locomotor) changes were used for 180-day survival studies. In protection studies, groups of mice were treated with the phosphorothioate WR-151327 (200 mg/kg, 25% of the LD(10)) or the immunomodulator, synthetic trehalose dicorynomycolate (S-TDCM; 8 mg/kg), before lethal irradiation with reactor-generated fission neutrons and gamma-rays (n/gamma=1) or 60Co gamma-rays. In therapy studies, groups of mice received either S-TDCM, the antimicrobial ofloxacin, or S-TDCM plus ofloxacin after irradiation. For WR-151327 treated-mice, survival at 180 days for n/gamma=1 and gamma-irradiated mice was 90% and 92%, respectively; for S-TDCM (protection), 57% and 78%, respectively; for S-TDCM (therapy), 20% and 25%, respectively; for ofloxacin, 38% and 5%, respectively; for S-TDCM combined with ofloxacin, 30% and 30%, respectively; and for saline, 8% and 5%, respectively. Ofloxacin or combined ofloxacin and S-TDCM increased survival from the gram-negative bacterial sepsis that predominated in n/gamma=1 irradiated mice. The efficacies of the treatments depended on radiation quality, treatment agent and its mode of use, and microflora of the host. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Ledney, G D AU - Elliott, T B AU - Landauer, M R AU - Vigneulle, R M AU - Henderson, P L AU - Harding, R A AU - Tom, S P AD - Armed forces Radiobiology Research Institute, Bethesda, MD 20889-5603, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 583 EP - 586 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Adjuvants, Immunologic KW - 0 KW - Anti-Infective Agents KW - Cephalosporins KW - Cord Factors KW - Organothiophosphorus Compounds KW - Radiation-Protective Agents KW - Ceftriaxone KW - 75J73V1629 KW - WR 151327 KW - 82147-31-7 KW - 6,6'-dicorynomycolyl trehalose KW - 93379-98-7 KW - Ofloxacin KW - A4P49JAZ9H KW - Space life sciences KW - Mice, Inbred Strains KW - Animals KW - Cord Factors -- therapeutic use KW - Survival Rate KW - Liver -- immunology KW - Gram-Negative Bacterial Infections -- etiology KW - Gram-Negative Bacterial Infections -- drug therapy KW - Mice KW - Cephalosporins -- therapeutic use KW - Liver -- microbiology KW - Female KW - Ceftriaxone -- therapeutic use KW - Adjuvants, Immunologic -- therapeutic use KW - Neutrons KW - Radiation Injuries, Experimental -- mortality KW - Anti-Infective Agents -- therapeutic use KW - Radiation-Protective Agents -- therapeutic use KW - Gamma Rays KW - Organothiophosphorus Compounds -- therapeutic use KW - Radiation Tolerance -- drug effects KW - Radiation Injuries, Experimental -- drug therapy KW - Ofloxacin -- therapeutic use KW - Radiation Injuries, Experimental -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112536?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Survival+of+irradiated+mice+treated+with+WR-151327%2C+synthetic+trehalose+dicorynomycolate%2C+or+ofloxacin.&rft.au=Ledney%2C+G+D%3BElliott%2C+T+B%3BLandauer%2C+M+R%3BVigneulle%2C+R+M%3BHenderson%2C+P+L%3BHarding%2C+R+A%3BTom%2C+S+P&rft.aulast=Ledney&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=583&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Helium-ion-induced human cataractogenesis. AN - 77112465; 11539986 AB - Retrospective and ongoing analyses of clinical records from 347 primary intraocular melanoma patients treated with helium ions at LBL will allow examination of the exposure-response data for human cataract; which is a complication of the therapy from incidental exposure of the lens. Direct particle beam traversal of at least a portion of the lens usually is unavoidable in treatment of posterior intraocular tumors. The precise treatment planned for each patient permits quantitative assessment of the lenticular dose and its radiation quality. We are reporting our preliminary results on the development of helium-ion-induced lens opacifications and cataracts in 54 of these patients who had 10% or less of their lens in the treatment field. We believe these studies will be relevant to estimating the human risk for cataract in space flight. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Blakely, E A AU - Daftari, I K AU - Meecham, W J AU - Alonso, L C AU - Collier, J M AU - Kroll, S M AU - Gillette, E L AU - Lee, A C AU - Lett, J T AU - Cox, A B AU - Castro, J R AU - Char, D H AD - Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 501 EP - 505 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Ions KW - 0 KW - Helium KW - 206GF3GB41 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Radiation Health KW - NASA Program NSCORT KW - Non-NASA Center KW - Humans KW - Particle Accelerators KW - Adult KW - Aerospace Medicine KW - Aged KW - Middle Aged KW - Follow-Up Studies KW - Risk Assessment KW - Radiotherapy -- adverse effects KW - Radiation Injuries -- etiology KW - Uveal Neoplasms -- radiotherapy KW - Helium -- adverse effects KW - Lens, Crystalline -- radiation effects KW - Melanoma -- radiotherapy KW - Cataract -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112465?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Helium-ion-induced+human+cataractogenesis.&rft.au=Blakely%2C+E+A%3BDaftari%2C+I+K%3BMeecham%2C+W+J%3BAlonso%2C+L+C%3BCollier%2C+J+M%3BKroll%2C+S+M%3BGillette%2C+E+L%3BLee%2C+A+C%3BLett%2C+J+T%3BCox%2C+A+B%3BCastro%2C+J+R%3BChar%2C+D+H&rft.aulast=Blakely&rft.aufirst=E&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=501&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Realistic computerized human phantoms. AN - 77112411; 11539979 AB - To estimate the risk resulting from exposures to ionizing radiation, the organ and tissue doses should be assessed. A convenient method is the calculation of these doses using representations of the human body, called models or phantoms, together with computer codes simulating the transport of radiation in the body. Most commonly used are mathematical phantoms whose external and internal volumes are defined by simple geometric bodies. More recently, phantoms constructed from computed tomographic data of real persons were introduced as an improvement. These phantoms present advantages concerning the location and shape of the organs, in particular the hard bone and bone marrow, whose distribution can be assessed with high resolution. So far, three of these phantoms were constructed at the GSF, a fourth is under process. The construction technique is described, and some calculational results of organ doses due to external photon irradiation are presented. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Zankl, M AU - Veit, R AU - Petoussi, N AU - Mannweiler, E AU - Wittmann, A AU - Drexler, G AD - GSF, Forschungszentrum fur Umwelt und Gesundheit GmbH, Neuherberg, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 423 EP - 431 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Infant KW - Bone Marrow KW - Radiation Dosage KW - Equipment Design KW - Radiation Monitoring -- methods KW - Humans KW - Adult KW - Tomography, X-Ray Computed KW - Child KW - Radiation Monitoring -- instrumentation KW - Male KW - Female KW - Mathematics KW - Computer Simulation KW - Phantoms, Imaging -- trends KW - Radiobiology -- instrumentation KW - Radiobiology -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112411?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Realistic+computerized+human+phantoms.&rft.au=Zankl%2C+M%3BVeit%2C+R%3BPetoussi%2C+N%3BMannweiler%2C+E%3BWittmann%2C+A%3BDrexler%2C+G&rft.aulast=Zankl&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=423&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Induction of high grade astrocytoma (HGA) by protons: molecular mechanisms and RBE considerations. AN - 77112355; 11539960 AB - Protons of a specific energy, 55 MeV, have been found to induce primary high grade astrocytomas (HGA) in the Rhesus monkey (Macaca mulatta). Brain tumors of this type were not induced by protons of other energies (32-2,300 MeV). Induction of HGA has been identified in human patients who have had radiation therapy to the head. We believe that the induction of HGA in the monkey is a consequence of dose distribution, not some unique "toxic" property of protons. Comparison of the human experience with the monkey data indicates the RBE for induction of brain tumors to be about one. It is unlikely that protons cause an unusual change in oncogenic expression, as compared to conventional electromagnetic radiation. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Dalrymple, G V AU - Leichner, P K AU - Harrison, K A AU - Cox, A B AU - Hardy, K A AU - Salmon, Y L AU - Mitchell, J C AD - Department of Radiology, University of Nebraska Medical Center, Omaha 68144, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 267 EP - 270 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Program Radiation Health KW - Non-NASA Center KW - Radiation Dosage KW - Animals KW - Relative Biological Effectiveness KW - Humans KW - Macaca mulatta KW - Ependymoma -- etiology KW - Dose-Response Relationship, Radiation KW - Neoplasms, Radiation-Induced KW - Astrocytoma -- etiology KW - Radiation, Ionizing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112355?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Induction+of+high+grade+astrocytoma+%28HGA%29+by+protons%3A+molecular+mechanisms+and+RBE+considerations.&rft.au=Dalrymple%2C+G+V%3BLeichner%2C+P+K%3BHarrison%2C+K+A%3BCox%2C+A+B%3BHardy%2C+K+A%3BSalmon%2C+Y+L%3BMitchell%2C+J+C&rft.aulast=Dalrymple&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Models of CNS radiation damage during space flight. AN - 77112314; 11539980 AB - The primary structural and functional arrangement of the different cell types within the CNS are reviewed. This was undertaken with a view to providing a better understanding of the complex interrelationships that may contribute to the pathogenesis of lesions in this tissue after exposure to ionizing radiation. The spectrum of possible CNS radiation-induced syndromes are discussed although not all have an immediate relevance to exposure during space flight. The specific characteristics of the lesions observed would appear to be dose related. Very high doses may produce an acute CNS syndrome that can cause death. Of the delayed lesions, selective coagulation necrosis of white matter and a later appearing vascular microangiopathy, have been reported in patients after cancer therapy doses. Lower doses, perhaps very low doses, may produce a delayed generalised CNS atrophy; this effect and the probability of the induction of CNS tumors could potentially have the greatest significance for space flight. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Hopewell, J W AD - CRC Normal Tissue Radiobiology Research Group, Research Institute (University of Oxford), U.K. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 433 EP - 442 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Swine KW - Rats KW - Spinal Cord -- physiopathology KW - Radiation Dosage KW - Animals KW - Spinal Cord -- radiation effects KW - Space Flight KW - Dose-Response Relationship, Radiation KW - Central Nervous System -- physiopathology KW - Central Nervous System Diseases -- physiopathology KW - Central Nervous System -- radiation effects KW - Central Nervous System -- blood supply KW - Blood-Brain Barrier -- radiation effects KW - Central Nervous System Diseases -- etiology KW - Neoplasms, Radiation-Induced KW - Demyelinating Diseases -- etiology KW - Central Nervous System -- cytology KW - Demyelinating Diseases -- physiopathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112314?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Models+of+CNS+radiation+damage+during+space+flight.&rft.au=Hopewell%2C+J+W&rft.aulast=Hopewell&rft.aufirst=J&rft.date=1994-10-01&rft.volume=28&rft.issue=2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Radioprotection&rft.issn=00338451&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Space radiobiology program in Russia. AN - 77112284; 11539945 AB - The space radiobiology program in Russia is aimed at obtaining fundamental data for developing radiation safety criteria. These criteria are necessary for long-term space missions. This program includes : -substantiation of radiation hazard estimation principles based on the radiation risk conception, -investigation of the radiation affection regularities under the combined influence of the spaceflight factors, -experimental investigation of the HZE-particle delayed effects and acute somatic effects induced by protons and electrons, -individual radiosensitivity investigation, -mathematic modeling of radiobiological effects , -radiobiological basis of control and forecast of radiation influence in space, -development of methods and means of an organism's radioresistance increase. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Antipov, V V AU - Petrov, V M AU - Shafirkin, A V AU - Gorlov, V V AU - Fedorenko, B S AU - Chertkov, K S AD - Institute of Biomedical Problems, Moscow, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 139 EP - 144 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Radiation-Protective Agents KW - 0 KW - Space life sciences KW - Space Flight KW - Humans KW - Radiation Tolerance KW - Russia KW - Research KW - Risk Assessment KW - Models, Theoretical KW - Aerospace Medicine -- organization & administration KW - Neoplasms, Radiation-Induced KW - Elementary Particles KW - Radiobiology KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112284?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Space+radiobiology+program+in+Russia.&rft.au=Antipov%2C+V+V%3BPetrov%2C+V+M%3BShafirkin%2C+A+V%3BGorlov%2C+V+V%3BFedorenko%2C+B+S%3BChertkov%2C+K+S&rft.aulast=Antipov&rft.aufirst=V&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mutagenic effects of heavy ions in bacteria. AN - 77112259; 11539967 AB - Various mutagenic effects by heavy ions were studied in bacteria, irradiated at accelerators in Dubna, Prague, Berkeley or Darmstadt. Endpoints investigated are histidine reversion (B. subtilis, S. typhimurium), azide resistance (B. subtilis), mutation in the lactose operon (E. coli), SOS chromotest (E. coli) and lambda-prophage induction (E. coli). It was found that the cross sections of the different endpoints show a similar dependence on energy. For light ions (Z or = 26) it increases with energy up to a maximum or saturation. The increment becomes steeper with increasing Z. This dependence on energy suggests a "mutagenic belt" inside the track that is restricted to an area where the density of departed energy is low enough not to kill the cell, but high enough to induce mutations. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Horneck, G AU - Krasavin, E A AU - Kozubek, S AD - DLR, Institute of Aerospace Medicine, Biophysics Division, Koln, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 315 EP - 329 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Azides KW - 0 KW - Mutagens KW - Histidine KW - 4QD397987E KW - Sodium Azide KW - 968JJ8C9DV KW - Space life sciences KW - Mutation -- drug effects KW - Lac Operon -- radiation effects KW - SOS Response (Genetics) KW - Genes, Bacterial -- radiation effects KW - Histidine -- radiation effects KW - Dose-Response Relationship, Radiation KW - Mutation -- radiation effects KW - Particle Accelerators KW - Azides -- pharmacology KW - Cyclotrons KW - Spores, Bacterial -- radiation effects KW - Linear Energy Transfer KW - Mutagenesis -- radiation effects KW - Bacillus subtilis -- genetics KW - Cosmic Radiation KW - Radiation Tolerance KW - Escherichia coli -- genetics KW - Bacillus subtilis -- radiation effects KW - Salmonella typhimurium -- genetics KW - Salmonella typhimurium -- radiation effects KW - Radiation, Ionizing KW - Escherichia coli -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112259?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Mutagenic+effects+of+heavy+ions+in+bacteria.&rft.au=Horneck%2C+G%3BKrasavin%2C+E+A%3BKozubek%2C+S&rft.aulast=Horneck&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=315&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The dose rate observed on 19-21 October 1989 and its modulation by geophysical effects. AN - 77112204; 11540004 AB - The Liulin dosimeter-radiometer on the MIR space station detected the 19 October 1989 high energy solar proton event. These results show that the main particle increase contains protons with energies up to about 9 GeV. After the main particle onset the Liulin dosimeter observed a typical geomagnetic cutoff modulation of the dose rate from the solar particles as the MIR space station traversed magnetic latitudes. When the interplanetary shock and associated solar plasma enveloped the earth on 20 October between 14 and 17 UT the radiation exposure increased significantly due to the lowering of the geomagnetic cutoff. The analysis of this event shows how various geophysical phenomena can significantly modulate the dose rate encountered by earth-orbiting spacecraft. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Smart, D F AU - Shea, M A AU - Dachev TsP AU - Bankov, N G AU - Petrov, V M AU - Bengin, V V AD - Geophysics Directorate, Phillips Laboratory, Hanscom AFB, Bedford, MA 01731, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 651 EP - 654 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - manned KW - Flight Experiment KW - Mir Project KW - long duration KW - Radiation Dosage KW - Magnetics KW - Radiometry KW - Space Flight -- instrumentation KW - Solar Activity KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112204?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=The+dose+rate+observed+on+19-21+October+1989+and+its+modulation+by+geophysical+effects.&rft.au=Smart%2C+D+F%3BShea%2C+M+A%3BDachev+TsP%3BBankov%2C+N+G%3BPetrov%2C+V+M%3BBengin%2C+V+V&rft.aulast=Smart&rft.aufirst=D&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=651&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-27 N1 - Date created - 1997-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiobiology and photobiology on Earth and in space: points of encounter and protection considerations. AN - 77112197; 11539963 AB - All radiations originate in space, and the spectrum of radiations reaching the troposphere is limited only because of their range and absorption by the ozone layer above the atmosphere. Ultraviolet-C and the very heavy ions are therefore produced on earth only artificially, by special lamps and in accelerators. The range of biological effects of the different UV radiations and low and high LET radiations have been studied extensively, yet only recently new facts such as the production of DNA strand breaks by long wave UV light were established, adding to the various points of encounter existing between ionizing and nonionizing radiations. There are some similarities in radiation products, and the resulting effects of insult by radiation on biological systems very often are similar, if not the same. A common phenomenon that exists in all healthy biological cells is the ability to repair damage to DNA and thus either survive or mutate, and although the specific mechanisms of repair are somewhat different, the end result is the same. Recently a mechanism of improved radioprotection was found to involve an effect of certain radioprotective compounds on DNA repair. It is suggested that improved, and nontoxic, modes of protection may be offered by employing such compounds as biological response modifiers and natural substances. Further research is needed and is under way. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Riklis, E AD - Nuclear Research Center-Negev, Beer-Sheva, Israel. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 285 EP - 293 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Radiation-Protective Agents KW - 0 KW - DNA KW - 9007-49-2 KW - Space life sciences KW - Ultraviolet Rays KW - Relative Biological Effectiveness KW - Cell Survival -- drug effects KW - DNA Damage KW - Photobiology KW - Vacuum KW - Linear Energy Transfer KW - Radiobiology KW - Gamma Rays KW - Cosmic Radiation KW - Radiation-Protective Agents -- pharmacology KW - DNA -- radiation effects KW - DNA Repair -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112197?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Radiobiology+and+photobiology+on+Earth+and+in+space%3A+points+of+encounter+and+protection+considerations.&rft.au=Riklis%2C+E&rft.aulast=Riklis&rft.aufirst=E&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Investigation of the low-energy component of primary cosmic radiation on the outside of spacecrafts. AN - 77112190; 11539998 AB - We have developed a method to investigate the low-energy radiation environment on the outside of spacecrafts. Thereby, ultra-thin thermoluminescent (TL) detectors on the base of CaF2:Mn-PTFE are arranged in stacks and exposed to the unshielded cosmic radiation. The dose distribution within a stack is determined by successive evaluation of the thin TL sheets. The analysis of LiF thermoluminescent detector glow curves permits conclusions on the dose contribution caused by either low-energy electrons or by protons. The method was applied aboard Russian COSMOS spacecrafts as well as the MIR station. It was shown that along low-earth orbits dose rates up to 10 Gy/day within the first few mg/cm2 are typical, mainly as a result of the electron impact. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Schmidt, P AU - Fellinger, J AU - Hahn, T AU - Hubner, K AD - Institute of Radiation Protection Physics, Dresden University of Technology, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 61 EP - 65 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Lithium Compounds KW - 0 KW - lithium fluoride KW - 1485XST65B KW - Polytetrafluoroethylene KW - 9002-84-0 KW - Fluorides KW - Q80VPU408O KW - Space life sciences KW - manned KW - unmanned KW - Flight Experiment KW - Mir Project KW - Cosmos Project KW - short duration KW - long duration KW - Radiation Dosage KW - Radiation Protection KW - Linear Energy Transfer KW - Thermoluminescent Dosimetry KW - Electrons KW - Space Flight -- instrumentation KW - Cosmic Radiation KW - Spacecraft UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112190?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Investigation+of+the+low-energy+component+of+primary+cosmic+radiation+on+the+outside+of+spacecrafts.&rft.au=Schmidt%2C+P%3BFellinger%2C+J%3BHahn%2C+T%3BHubner%2C+K&rft.aulast=Schmidt&rft.aufirst=P&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=61&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Research needed to improve solar flare and particle forecasting. AN - 77112122; 11540002 AB - We briefly review the status of our physical understanding of energy buildup and release in transient active phenomena on the Sun. Such understanding is necessary in order to improve our capabilities to predict such events and their effects in interplanetary space and near-Earth environment. We then discuss the research that we consider is needed for such improvement. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Machado, M E AD - Department of Physics, The University of Alabama in Huntsville 35899, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 639 EP - 644 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Astronomy -- trends KW - Forecasting KW - Research KW - Solar Activity KW - Radiation Monitoring UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112122?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Research+needed+to+improve+solar+flare+and+particle+forecasting.&rft.au=Machado%2C+M+E&rft.aulast=Machado&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=639&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-27 N1 - Date created - 1997-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Track structure and DNA damage. AN - 77112082; 11539947 AB - Heavy particles like protons or heavier ions are different in their biological efficiency when compared to sparsely ionizing radiation. These differences have been attributed to the different pattern of energy deposition in the track of the particles. In radiobiological models two different approaches are used for the characterization of the radiation quality: the continuous dose distribution of the various track structure models and the separation in small compartments inside the track which are used in microdosimetry. In a recent Monte Carlo calculation using the binary encounter approximation as input for the electron emission process, the radial distribution of the dose is calculated for heavy ions. The result of this calculation is compared to other models and used for a qualitative interpretation of the induction of DNA damage by particles. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kramer, M AU - Kraft, G AD - Biophysik, Gesellschaft fur Schwerionenforschung mbH, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 151 EP - 159 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA KW - 9007-49-2 KW - Space life sciences KW - Relative Biological Effectiveness KW - Elementary Particle Interactions KW - Nuclear Physics KW - Models, Theoretical KW - Electrons KW - DNA Damage KW - Monte Carlo Method KW - DNA -- radiation effects KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112082?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Track+structure+and+DNA+damage.&rft.au=Kramer%2C+M%3BKraft%2C+G&rft.aulast=Kramer&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiation effects on late cytopathological parameters in the murine lens relative to particle fluence. AN - 77112080; 11539985 AB - Lenses of mice irradiated with 250 MeV protons, 670 MeV/amu 20Ne, 600 MeV/amu 56Fe, 600 MeV/amu 93Nb and 593 MeV/amu 139La ions were evaluated by analyzing cytopathological indicators which have been implicated in the cataractogenic process. The LETs ranged from 0.40 keV/micrometer to 953 keV/micrometer and fluences from 1.31 10(3)/mm2 to 4.99 x 10(7)/mm2. 60Co gamma-rays were used as the reference radiation. The doses ranged from 10 to 40 cGy. The lenses were assessed 64 weeks post irradiation in order to observe the late effects of LET and dose on the target cell population of the lens epithelium. Our study shows that growth dependent pathological changes occur at the cellular level as a function of dose and LET. The shapes of the RBE-LET and RBE-dose curves are consistent with previous work on eye and other biological systems done in both our laboratory and others. The RBEmax's were estimated, for the most radiation cataract related cytological changes, MN frequency and MR disorganization, by calculating the ratio of the initial slopes of dose effect curve for various heavy ions to that of 60Co gamma-ray. For each ion studied, the RBEmax derived from micronucleus (MN) frequency is similar to that derived from meridional row (MR) disorganization, suggesting that heavy ions are equally efficient at producing each type of damage. Furthermore, on a per particle basis (particle/cell nucleus), both MN frequency and MR disorganization are LET dependent indicating that these classic precataractogenic indicators are multi-gene effects. Poisson probability analysis of the particle number traversing cell nuclei (average area = 24 micrometers2) suggested that single nuclear traversals determine these changes. By virtue of their precataractogenic nature the data on these endpoints intimate that radiation cataract may also be the consequence of single hits. In any case, these observations are consistent with the current theory of the mechanism of radiation cataractogenesis, which proposes that genomic damage to the epithelial cells surviving the exposure is responsible for opacification. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Tao, F AU - Powers-Risius, P AU - Alpen, E L AU - Medvedovsky, C AU - David, J AU - Worgul, B V AD - Department of Ophthalmology, Columbia University, New York 10032, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 483 EP - 491 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Niobium KW - 05175J654G KW - Neon KW - 4VB4Y46AHD KW - Lanthanum KW - 6I3K30563S KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Program Radiation Health KW - Non-NASA Center KW - Mice, Inbred Strains KW - Animals KW - Relative Biological Effectiveness KW - Particle Accelerators KW - Radiation Injuries, Experimental KW - Mice KW - Poisson Distribution KW - Dose-Response Relationship, Radiation KW - Lens, Crystalline -- pathology KW - Lens, Crystalline -- cytology KW - Cataract -- physiopathology KW - Lens, Crystalline -- radiation effects KW - Micronuclei, Chromosome-Defective -- radiation effects KW - Cataract -- etiology KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112080?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Radiation+effects+on+late+cytopathological+parameters+in+the+murine+lens+relative+to+particle+fluence.&rft.au=Tao%2C+F%3BPowers-Risius%2C+P%3BAlpen%2C+E+L%3BMedvedovsky%2C+C%3BDavid%2C+J%3BWorgul%2C+B+V&rft.aulast=Tao&rft.aufirst=F&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=483&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Angular distributions of energetic charged particles observed with HELIOS-1 and -2 between 0.3 amd 1 AU and their relevance to manned interplanetary space missions. AN - 77112072; 11539997 AB - The University of Kiel Cosmic Ray Instrument on board the solar probes HELIOS-1 and -2 measured angular distributions of electrons, protons, and heavier nuclei between 0.3 and 1 AU over one complete solar cycle between 1974 and 1986. Anisotropies are observed mainly during the rising phase of solar particle events or close to the passage of certain interplanetary shocks. The anisotropies are presented as proton data of energies between 27 and 37 MeV. The dependence of the anisotropies on particle energy and distance from the sun is provided based on diffusive propagation in interplanetary space. Strong anisotropies could provide a chance of efficient shielding of the passenger compartment by moving heavier parts of the spacecraft structure into the direction of the highest flux. A reduction of the total radiation dose by less than a factor of 2 might be achievable, however, selection of quiet times for the mission reduces the radiation hazard much more. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kunow, H AD - Institut fur Reine und Angewandte Kernphysik, Universitat Kiel, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 599 EP - 610 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - HELIOS Project KW - Scattering, Radiation KW - Magnetics KW - Anisotropy KW - Radiation Protection KW - Solar System KW - Mathematics KW - Solar Activity KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Space Flight KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112072?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Angular+distributions+of+energetic+charged+particles+observed+with+HELIOS-1+and+-2+between+0.3+amd+1+AU+and+their+relevance+to+manned+interplanetary+space+missions.&rft.au=Kunow%2C+H&rft.aulast=Kunow&rft.aufirst=H&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=599&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Investigation on rice embryos and seeds after the LDEF flight: electronic spin resonance identification. AN - 77112027; 11539989 AB - Rice caryopsis of Cigalon variety with short grain of the LDEF mission can develop and grow as well as those of the laboratory control. Rice caryopsis of Delta variety with long grain did not develop while a small number of excised embryos can develop and grow as well as the control group. A preliminary study of the Electron Spin Resonance (ESR) spectra of Rice embryos and seeds recorded several month after the flight on flight samples and on control ones has been carried out. All these samples had the same storage time. During storage the radical concentration which usually decreases, now depends on irradiation doses and on whether or not they were delivered in presence of oxygen. The signal variations are smaller than those usually observed in the different parts of the starch. An estimation of a "gamma-equivalent-dose" can be reached. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Bayonove, J F AU - Raffi, J J AU - Agnel, J P AD - Biologie Vegetale, Universite Montpellier II, France. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 53 EP - 57 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Culture Media KW - 0 KW - Free Radicals KW - Water KW - 059QF0KO0R KW - Oxygen KW - S88TT14065 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - long duration KW - LDEF Project KW - Radiation Dosage KW - Gamma Rays KW - Cosmic Radiation KW - Electron Spin Resonance Spectroscopy KW - Spacecraft KW - Oryza -- growth & development KW - Space Flight KW - Oryza -- radiation effects KW - Oryza -- embryology KW - Seeds -- growth & development KW - Seeds -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112027?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Investigation+on+rice+embryos+and+seeds+after+the+LDEF+flight%3A+electronic+spin+resonance+identification.&rft.au=Bayonove%2C+J+F%3BRaffi%2C+J+J%3BAgnel%2C+J+P&rft.aulast=Bayonove&rft.aufirst=J&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Space radiation dosimetry using bubble detectors. AN - 77112024; 11540018 AB - Bubble detectors--a new development in radiation detection--has only recently been used for radiation measurements in space. One important characteristic of the bubble detector is that it operates on a phenomenon which bears considerable resemblance to biological response. Recent experimental results from irradiating bubble detectors with high-energy heavy ions point to the need to re-examine the methodology used for assessing space radiation and the relevance of conventional quantities such as dose equivalent for space dosimetry. It may be that biological hazard associated with the intensely ionizing events--associated with nuclear fragmentation but delivering relatively small dose equivalent--may be much more important than that associated with lightly ionizing events which comprise the bulk of the conventional radiation dose equivalent. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Ing, H AU - Mortimer, A AD - Bubble Technology Industries, Chalk River, Canada. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 73 EP - 76 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Polymers KW - 0 KW - Protons KW - Space life sciences KW - unmanned KW - Flight Experiment KW - short duration KW - Cosmos 2044 Project KW - Radiation Dosage KW - Radiometry KW - International Cooperation KW - Canada KW - Russia KW - Neutrons KW - Space Flight -- instrumentation KW - Cosmic Radiation KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112024?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Space+radiation+dosimetry+using+bubble+detectors.&rft.au=Ing%2C+H%3BMortimer%2C+A&rft.aulast=Ing&rft.aufirst=H&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Heavy ion induced changes in small intestinal parameters. AN - 77112008; 11539988 AB - The effects on 17 different structural parameters of mouse small intestine three days after treatment with three types of heavy ion (neon, iron and niobium) are compared, the first two being of particular relevance to space flight. The data for niobium are given in full, showing that changes after niobium ion treatment are not standard and are concentrated in the epithelial compartment, with few of the parameters having a response which is dose dependent. When comparisons are made for the three types of heavy ion, the damage is greatest after neon ion irradiation, implying that the additional non-epithelial damage produced as LET rises from X rays through neutrons to neon ions is not necessarily maintained as LET continues to rise. Further understanding is therefore needed of the balance between changes affecting the vascular and absorptive components of the organ. Variation from group to group is also important, as is variation of strain or gastrointestinal status. All such factors are important in the understanding of changes in multicellular organs after exposure to heavy ion radiation. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Carr, K E AU - McCullough, J S AU - Brennan, P AU - Hayes, T L AU - Ainsworth, E J AU - Nelson, A C AD - School of Biomedical Science, The Queen's University of Belfast, Ireland. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 521 EP - 530 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Resins, Plant KW - 0 KW - Niobium KW - 05175J654G KW - Neon KW - 4VB4Y46AHD KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - Mice, Inbred Strains KW - Animals KW - Mice KW - Dose-Response Relationship, Radiation KW - Statistics, Nonparametric KW - Female KW - Microscopy, Electron, Scanning KW - Intestine, Small -- cytology KW - Intestine, Small -- ultrastructure KW - Intestine, Small -- pathology KW - Linear Energy Transfer KW - Intestine, Small -- radiation effects KW - Radiation, Ionizing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112008?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Heavy+ion+induced+changes+in+small+intestinal+parameters.&rft.au=Carr%2C+K+E%3BMcCullough%2C+J+S%3BBrennan%2C+P%3BHayes%2C+T+L%3BAinsworth%2C+E+J%3BNelson%2C+A+C&rft.aulast=Carr&rft.aufirst=K&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=521&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiation risk of the crew members of the expeditions on the "MIR" station during the 22nd solar activity cycle. AN - 77111960; 11539976 AB - The radiation risk at the end of the flight was calculated for the members of the main expeditions on the "Mir" station. It was based on the absorbed dose dynamics data measured by the board dosimeter. The radiation damage models created for standards of the radiation safety of the space flights were used in the calculations. The analysis of the obtained values of the risk and its dynamics for some cosmonauts are presented in the topic. The risk values delta P are close to the limited levels given by equation of delta P = 0.6 x 10 x T(-4), [this equation appears also as delta RHrad = 0.6 x 10(-4) x T later in the text] where T--is flight duration in months. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Alekhina, I G AU - Mitrikas, V G AU - Petrov, V M AD - Institute of Biomedical Problems, Moscow, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 409 EP - 414 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - manned KW - Flight Experiment KW - Mir Project KW - long duration KW - Radiation Dosage KW - Mortality KW - Relative Biological Effectiveness KW - Age Factors KW - Radiometry KW - Humans KW - Adult KW - Middle Aged KW - Russia KW - Spacecraft KW - Male KW - Risk Assessment KW - Radiation Protection -- standards KW - Occupational Exposure KW - Solar Activity KW - Astronauts KW - Space Flight -- standards KW - Space Flight -- statistics & numerical data KW - Models, Statistical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111960?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Radiation+risk+of+the+crew+members+of+the+expeditions+on+the+%22MIR%22+station+during+the+22nd+solar+activity+cycle.&rft.au=Alekhina%2C+I+G%3BMitrikas%2C+V+G%3BPetrov%2C+V+M&rft.aulast=Alekhina&rft.aufirst=I&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Charged-particle mutagenesis II. Mutagenic effects of high energy charged particles in normal human fibroblasts. AN - 77111910; 11539970 AB - The biological effects of high LET charged particles are a subject of great concern with regard to the prediction of radiation risk in space. In this report, mutagenic effects of high LET charged particles are quantitatively measured using primary cultures of human skin fibroblasts, and the spectrum of induced mutations are analyzed. The LET of the charged particles ranged from 25 KeV/micrometer to 975 KeV/micrometer with particle energy (on the cells) between 94-603 MeV/u. The X-chromosome linked hypoxanthine guanine phosphoribosyl transferase (hprt) locus was used as the target gene. Exposure to these high LET charged particles resulted in exponential survival curves; whereas, mutation induction was fitted by a linear model. The Relative Biological Effect (RBE) for cell-killing ranged from 3.73 to 1.25, while that for mutant induction ranged from 5.74 to 0.48. Maximum RBE values were obtained at the LET of 150 keV/micrometer. The inactivation cross-section (alpha i) and the action cross-section for mutant induction (alpha m) ranged from 2.2 to 92.0 micrometer2 and 0.09 to 5.56 x 10(-3) micrometer2, respectively. The maximum values were obtained by 56Fe with an LET of 200 keV/micrometer. The mutagenicity (alpha m/alpha i) ranged from 2.05 to 7.99 x 10(-5) with the maximum value at 150 keV/micrometer. Furthermore, molecular analysis of mutants induced by charged particles indicates that higher LET beams are more likely to cause larger deletions in the hprt locus. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Chen, D J AU - Tsuboi, K AU - Nguyen, T AU - Yang, T C AD - Life Sciences Division, Los Alamos National Laboratory, NM 87545, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 347 EP - 354 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Hypoxanthine Phosphoribosyltransferase KW - EC 2.4.2.8 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Center JSC KW - NASA Program Radiation Health KW - Relative Biological Effectiveness KW - Skin -- radiation effects KW - Humans KW - Particle Accelerators KW - Cell Death KW - Skin -- cytology KW - Dose-Response Relationship, Radiation KW - Fibroblasts KW - Mutagenesis -- radiation effects KW - Hypoxanthine Phosphoribosyltransferase -- radiation effects KW - Hypoxanthine Phosphoribosyltransferase -- genetics KW - Cosmic Radiation KW - Cells, Cultured -- radiation effects KW - Cell Survival -- radiation effects KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111910?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Charged-particle+mutagenesis+II.+Mutagenic+effects+of+high+energy+charged+particles+in+normal+human+fibroblasts.&rft.au=Chen%2C+D+J%3BTsuboi%2C+K%3BNguyen%2C+T%3BYang%2C+T+C&rft.aulast=Chen&rft.aufirst=D&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=347&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Cosmic ionizing radiation effects in plant seeds after short and long duration exposure flights. AN - 77111753; 11539941 AB - Recently, comparison of biophysical data obtained from orbital flights of short and long duration led to results which will be significant for long and/or repeated stay of man in space. Under orbital conditions biological stress is induced in dry seeds of Arabidopsis thaliana by cosmic radiation especially its high energetic, densely ionizing component, the heavy ions (HZE). For comparison of radiation impact during different space flights a biological attempt at estimating the impact of single particles with high mass and energy (HZE-particles) on seeds was developed. Subdivision into LET-groups showed a remarkable contribution of an intermediate group (LET = 35 to 100 keV/micrometer) due to medium heavy ions (Z = 6 to 10). Efficiency factors for radiation damage experimentally determined and assigned to different LET-classes were compared to radiation quality factors discussed in literature. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Gartenbach, K E AU - Pickert, M AU - Zimmermann, M W AU - Kranz, A R AD - Botanisches Institut, Johann Wolfgang Goethe-Universitat, Frankfurt/Main, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 105 EP - 108 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - manned KW - STS-9 Shuttle Project KW - unmanned KW - Flight Experiment KW - Cosmos 1887 Project KW - STS-42 Shuttle Project KW - short duration KW - long duration KW - LDEF Project KW - Cosmos 2044 Project KW - Relative Biological Effectiveness KW - Radiometry KW - Spacecraft KW - Time Factors KW - Linear Energy Transfer KW - Arabidopsis -- radiation effects KW - Space Flight KW - Arabidopsis -- growth & development KW - Seeds -- growth & development KW - Seeds -- radiation effects KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111753?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Cosmic+ionizing+radiation+effects+in+plant+seeds+after+short+and+long+duration+exposure+flights.&rft.au=Gartenbach%2C+K+E%3BPickert%2C+M%3BZimmermann%2C+M+W%3BKranz%2C+A+R&rft.aulast=Gartenbach&rft.aufirst=K&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Influence of a long duration exposure, 69 months, to the space flight factors in Artemia cysts, tobacco and rice seeds. AN - 77111649; 11539953 AB - Three french laboratories have participated in the Free Flyer Biostack experiment. Artemia cysts, tobacco seeds and rice caryopsis and embryos were used. Biological objects in monolayers were dead. In opposite, a large fraction of samples used in bulk survived. A stimulatory effect occurred in the first steps of development in Artemia cysts. In fact, the larval survival was unchanged or slightly reduced. In tobacco a drastic decrease in germination and survival rate was observed. Space flight did not induce genetic changes. In rice, results depend on the variety which was investigated; the growth rate stimulation in flight samples is discussed with respect to controls. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Planel, H AU - Gaubin, Y AU - Pianezzi, B AU - Delpoux, M AU - Bayonove, J AU - Bes, J C AU - Heilmann, C AU - Gasset, G AD - Laboratoire de Radiobiologie et Biologie Spatiale, Toulouse, France. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 21 EP - 32 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - long duration KW - LDEF Project KW - Thermoluminescent Dosimetry KW - Animals KW - Gamma Rays KW - Spacecraft KW - Time Factors KW - Seeds -- radiation effects KW - Germination -- radiation effects KW - Artemia -- radiation effects KW - Cosmic Radiation KW - Tobacco -- growth & development KW - Artemia -- embryology KW - Oryza -- genetics KW - Tobacco -- genetics KW - Plants, Toxic KW - Space Flight -- instrumentation KW - Oryza -- growth & development KW - Oryza -- radiation effects KW - Artemia -- genetics KW - Tobacco -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111649?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Influence+of+a+long+duration+exposure%2C+69+months%2C+to+the+space+flight+factors+in+Artemia+cysts%2C+tobacco+and+rice+seeds.&rft.au=Planel%2C+H%3BGaubin%2C+Y%3BPianezzi%2C+B%3BDelpoux%2C+M%3BBayonove%2C+J%3BBes%2C+J+C%3BHeilmann%2C+C%3BGasset%2C+G&rft.aulast=Planel&rft.aufirst=H&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Proton flare and magnetic storm effect in the vicinity of the Earth. AN - 77111601; 11540005 AB - We have developed a model and associated computational procedure for estimating energetic proton exposures during a major solar proton event that occur in combination with a large magnetic storm. Transmission functions for solar protons are computed using geomagnetic vertical cutoff data for quiescent and disturbed conditions. Predicted exposures in low altitude polar orbit are found to be orders of magnitude greater for severe magnetic storm conditions than are corresponding exposures in the absence of major disturbances. We examine the response scenario for the events of November 1960 as an example. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Nealy, J E AU - Wilson, J W AU - Shea, M A AU - Smart, D F AD - NASA Langley Research Center, Hampton, VA 23665, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 655 EP - 660 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Program Radiation Health KW - Radiation Dosage KW - Radiometry KW - Space Flight KW - Magnetics KW - Computer Simulation KW - Solar Activity KW - Spacecraft KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111601?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Proton+flare+and+magnetic+storm+effect+in+the+vicinity+of+the+Earth.&rft.au=Nealy%2C+J+E%3BWilson%2C+J+W%3BShea%2C+M+A%3BSmart%2C+D+F&rft.aulast=Nealy&rft.aufirst=J&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=655&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-27 N1 - Date created - 1997-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Fluence-based relative biological effectiveness for charged particle carcinogenesis in mouse Harderian gland. AN - 77111526; 11539994 AB - Neoplasia in the rodent Harderian gland has been used to determine the carcinogenic potential of irradiation by HZE particles. Ions from protons to lanthanum at energies up to 670 MeV/a have been used to irradiate mice, and prevalence of Harderian gland tumors has been measured 16 months after irradiation. The RBE for tumor induction has been expressed as the RBEmax, which is the ratio of the initial slopes of the dose vs prevalence curve. The RBEmax has been found to be approximately 30 for ions with LET values in excess of 100 keV/micrometer. Analysis on the basis of fluence as a substitute for dose has shown that on a per particle basis all of the ions with LET values in excess of 100 keV/micrometer have equal effectiveness. An analysis of the probabilities of ion traversals of the nucleus has shown that for these high stopping powers that a single hit is effective in producing neoplastic transformation. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Alpen, E L AU - Powers-Risius, P AU - Curtis, S B AU - DeGuzman, R AU - Fry, R J AD - Lawrence Berkeley Laboratory, University of California, Berkeley, 94720, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 573 EP - 581 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Lanthanum KW - 6I3K30563S KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Program Radiation Health KW - Non-NASA Center KW - Radiation Dosage KW - Animals KW - Relative Biological Effectiveness KW - Gamma Rays KW - Particle Accelerators KW - Mice KW - Dose-Response Relationship, Radiation KW - Linear Energy Transfer KW - Female KW - Prevalence KW - Neoplasms, Radiation-Induced -- etiology KW - Cosmic Radiation KW - Neoplasms, Radiation-Induced -- epidemiology KW - Harderian Gland -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111526?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Fluence-based+relative+biological+effectiveness+for+charged+particle+carcinogenesis+in+mouse+Harderian+gland.&rft.au=Alpen%2C+E+L%3BPowers-Risius%2C+P%3BCurtis%2C+S+B%3BDeGuzman%2C+R%3BFry%2C+R+J&rft.aulast=Alpen&rft.aufirst=E&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=573&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Monte Carlo track structure studies of energy deposition and calculation of initial DSB and RBE. AN - 77111386; 11539948 AB - Estimation of exposure due to environmental and other sources of radiations of high-LET and low-LET is of interest in radiobiology and radiation protection for risk assessment. To account for the differences in effectiveness of different types of radiations various parameters have been used. However, the relative inadequacy of the commonly used parameters, including dose, fluence, linear energy transfer, lineal energy, specific energy and quality factor, has been made manifest by the biological importance of the microscopic track structure and primary modes of interaction. Monte Carlo track structure simulations have been used to calculate the frequency of energy deposition by radiations of high- and low-LET in target sizes similar to DNA and higher order genomic structure. Tracks of monoenergetic heavy ions and electrons were constructed by following the molecular interaction-by-interaction histories of the particles down to 10 eV. Subsequently, geometrical models of these assumed biological targets were randomly exposed to the radiation tracks and the frequency of energy depositions obtained were normalized to unit dose in unit density liquid water (l0(3) kg m-3). From these data and a more sophisticated model of the DNA, absolute yields of both single- and double-strand breaks expressed in number of breaks per dalton per Gray were obtained and compared with the measured yields. The relative biological effectiveness (RBE) for energy depositions in cylindrical targets has been calculated using 100 keV electrons as the reference radiation assuming the electron track-ends contribution is similar to that in 250 kV X-ray or Co60 gamma-ray irradiations. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Nikjoo, H AU - Charlton, D E AU - Goodhead, D T AD - MRC Radiobiology Unit, Didcot, U.K. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 161 EP - 180 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Free Radicals KW - 0 KW - Nucleosomes KW - Carbon KW - 7440-44-0 KW - DNA KW - 9007-49-2 KW - Aluminum KW - CPD4NFA903 KW - Titanium KW - D1JT611TNE KW - Space life sciences KW - Nucleosomes -- radiation effects KW - Animals KW - Relative Biological Effectiveness KW - Elementary Particle Interactions KW - Nuclear Physics -- methods KW - Radiobiology KW - Models, Theoretical KW - Electrons KW - Photons KW - DNA Damage KW - Monte Carlo Method KW - DNA -- radiation effects KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111386?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Monte+Carlo+track+structure+studies+of+energy+deposition+and+calculation+of+initial+DSB+and+RBE.&rft.au=Nikjoo%2C+H%3BCharlton%2C+D+E%3BGoodhead%2C+D+T&rft.aulast=Nikjoo&rft.aufirst=H&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Cellular changes in microgravity and the design of space radiation experiments. AN - 77111371; 11539937 AB - Cell metabolism, secretion and cell-cell interactions can be altered during space flight. Early radiobiology experiments have demonstrated synergistic effects of radiation and microgravity as indicated by increased mutagenesis, increased chromosome aberrations, inhibited development, and retarded growth. Microgravity-induced changes in immune cell functions include reduced blastogenesis and cell-mediated, delayed-type hypersensitivity responses, increased cytokine secretions, but inhibited cytotoxic effects and macrophage differentiation. These effects are important because of the high radiosensitivity of immune cells. It is difficult to compare ground studies with space radiation biology experiments because of the complexity of the space radiation environment, types of radiation damage and repair mechanisms. Altered intracellular functions and molecular mechanisms must be considered in the design and interpretation of space radiation experiments. Critical steps in radiocarcinogenesis could be affected. New cell systems and hardware are needed to determine the biological effectiveness of the low dose rate, isotropic, multispectral space radiation and the potential usefulness of radioprotectants during space flight. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Morrison, D R AD - Biomedical Operations and Research Branch, Johnson Space Center, Houston, TX 77058, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 1005 EP - 1019 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA KW - 9007-49-2 KW - Space life sciences KW - manned KW - NASA Discipline Cell Biology KW - STS-61A Shuttle Project KW - Flight Experiment KW - short duration KW - Non-NASA Center KW - NASA Program Space Biology KW - NASA Discipline Number 28-20 KW - Radiation Dosage KW - Animals KW - Relative Biological Effectiveness KW - Bacteria -- radiation effects KW - Humans KW - DNA -- radiation effects KW - Seeds -- radiation effects KW - Research Design KW - Linear Energy Transfer KW - Cell Division -- radiation effects KW - Cell Differentiation -- radiation effects KW - Lymphocytes -- immunology KW - Cosmic Radiation KW - Space Flight KW - Lymphocytes -- radiation effects KW - Weightlessness KW - Radiobiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111371?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Cellular+changes+in+microgravity+and+the+design+of+space+radiation+experiments.&rft.au=Morrison%2C+D+R&rft.aulast=Morrison&rft.aufirst=D&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=1005&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mechanisms underlying cellular radiosensitivity and R.B.E.: introductory remarks. AN - 77111329; 11539946 AB - A general outline of the symposium titled "Mechanisms underlying cellular radiosensitivity and R.B.E." will be given in the introduction. The essential topics of molecular radiation biology are described with respect to the damage, repair and mutagenesis caused by high-LET irradiation to cellular DNA. The importance of clustered DNA lesions (locally multiply damaged sites) formed in vivo is discussed. This symposium is devoted to the mechanisms of the biological effects of radiation with high LET, especially with regard to the effects of heavy ions and neutrons which may cause possible risks in space flight, (e.g. carcinogenesis and mutagenesis). Detailed understanding of these risks, however, demands knowledge of the molecular mechanisms involved in the biological effects of high-LET radiations. Thus, it was the organizers' idea to hold a symposium dealing with primary physical and chemical events caused in cellular deoxyribonucleoproteins by densely-ionizing radiations and to relate them to track structures and energy transfer processes. The mechanisms of DNA damage were regarded from different points of view including those considering DNA repair and mutagenesis. Problems associated with cell survival and radiation protection were discussed as well. Our knowledge of the molecular mechanisms of high-LET radiation actions, however, is limited compared to what we know about low-LET radiation effects (e.g. from gamma-rays or X-rays). To emphasize this statement, I would like to summarize briefly the open questions in molecular radiation biology, what we know already about low-LET effects and what is lacking describing the effect of high-LET radiation. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Hagen, U AD - Institut fur Strahlenbiologie, Neuherberg, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 147 EP - 150 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA KW - 9007-49-2 KW - Space life sciences KW - Relative Biological Effectiveness KW - DNA Repair KW - DNA Damage KW - DNA -- radiation effects KW - Linear Energy Transfer KW - Cells -- radiation effects KW - Radiobiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111329?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Mechanisms+underlying+cellular+radiosensitivity+and+R.B.E.%3A+introductory+remarks.&rft.au=Hagen%2C+U&rft.aulast=Hagen&rft.aufirst=U&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=147&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Dosimetric investigations on Mars-96 mission. AN - 77111024; 11540012 AB - The dosimetric experiments Dose-M and Liulin as part of the more complex French-German-Bulgarian-Russian experiments for the investigation of the radiation environment for Mars-96 mission are described. The experiments will be realized with dosemeter-radiometer instruments, measuring absorbed dose in semiconductor detectors and the particle flux. Two detectors will be mounted on board the Mars-96 orbiter. Another detector will be on the guiderope of the Mars-96 Aerostate station. The scientific aims of Dose-M and Liulin experiments are: Analysis of the absorbed dose and the flux on the path and around Mars behind different shielding. Study of the shielding characteristics of the Martian atmosphere from galactic and solar cosmic rays including solar proton events. Together with the French gamma-spectrometer and the German neutron detectors the investigation of the radiation environment on the surface of Mars and in the atmosphere up to 4000 m altitude will be conducted. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Semkova, J AU - Dachev, T s AU - Matviichuk, Y u AU - Koleva, R AU - Tomov, B AU - Baynov, P AU - Petrov, V AU - Nguyen, V AU - Siegrist, M AU - Chene, J AU - d'Uston, C AU - Cotin, F AD - Solar-Terrestrial Influences Laboratory, Bulgarian Academy of Sciences, Sofia, Bulgaria. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 707 EP - 710 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Radiation Dosage KW - Radiometry KW - Radiation Protection KW - Mars KW - Research Design KW - Space Flight -- instrumentation KW - Solar Activity KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Spacecraft -- standards KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111024?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Dosimetric+investigations+on+Mars-96+mission.&rft.au=Semkova%2C+J%3BDachev%2C+T+s%3BMatviichuk%2C+Y+u%3BKoleva%2C+R%3BTomov%2C+B%3BBaynov%2C+P%3BPetrov%2C+V%3BNguyen%2C+V%3BSiegrist%2C+M%3BChene%2C+J%3Bd%27Uston%2C+C%3BCotin%2C+F&rft.aulast=Semkova&rft.aufirst=J&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=707&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-27 N1 - Date created - 1997-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Estimation of risk based on multiple events in radiation carcinogenesis of rat skin. AN - 77110930; 11539987 AB - In the multistage theory of carcinogenesis, cells progress to cancer through a series of discrete, irreversible, heritable genetic alterations or mutations. However data on radiation-induced cancer incidence in rat skin suggests that some part of an intermediate repairable alteration may occur. Data are presented on cancer induction in rat skin exposed to the following radiations: 1. an electron beam (LET=0.34 keV/um, 2. a neon ion beam (LET=25 keV/um and 3. an argon ion beam (LET=125 keV/um. The latter 2 beams were generated by the Bevalac at the Lawrence Berkeley Laboratory, Berkeley, CA. About 6.0 cm2 of skin was irradiated per rat. The rats were observed every 6 weeks for at least 78 weeks and tumors were scored at first occurrence. Several histological types of cancer, including squamous and basal cell carcinomas, were induced. The cancer yield versus radiation dose was fitted by the quadratic equation (Y(D)=CLD+BD2), and the parameters C and B were estimated for each type of radiation. Analysis of the DNA from the electron-induced carcinomas indicated that K-ras and/or c-myc oncogenes were activated in all tumors tested, although only a small proportion of neon-induced tumors showed similar activation. In situ hybridization indicated that the cancers contain subpopulations of cells with differing amounts of c-myc and H-ras amplification. The results are consistent with the idea that ionizing radiation produces carcinogenically relevant lesions via 2 repairable events at low LET and via a non-repairable, linked event pathway at high LET; either pathway may advance the cell by 1 stage in the multistage model. The model, if validated, permits the direct calculation of cancer risk in rat skin in a way that can be subjected to experimental testing. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Burns, F J AU - Jin, Y AU - Garte, S J AU - Hosselet, S AD - Institute of Environmental Medicine, New York University Medical Center, New York 10016, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 507 EP - 519 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA, Neoplasm KW - 0 KW - Neon KW - 4VB4Y46AHD KW - Argon KW - 67XQY1V3KH KW - Space life sciences KW - Rats KW - Animals KW - DNA Repair KW - DNA Damage KW - Particle Accelerators KW - Dose-Response Relationship, Radiation KW - Linear Energy Transfer KW - Risk Assessment KW - Mathematics KW - Skin Neoplasms -- genetics KW - Skin Neoplasms -- physiopathology KW - Skin -- radiation effects KW - Skin -- physiopathology KW - Electrons KW - Neoplasms, Radiation-Induced -- physiopathology KW - Disease Models, Animal KW - DNA, Neoplasm -- genetics KW - Neoplasms, Radiation-Induced -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110930?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Estimation+of+risk+based+on+multiple+events+in+radiation+carcinogenesis+of+rat+skin.&rft.au=Burns%2C+F+J%3BJin%2C+Y%3BGarte%2C+S+J%3BHosselet%2C+S&rft.aulast=Burns&rft.aufirst=F&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=507&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Histologic effects of high energy electron and proton irradiation of rat brain detected with a silver-degeneration stain. AN - 77110890; 11539981 AB - Application of the degeneration sensitive, cupric-silver staining method to brain sections of male Sprague-Dawley rats irradiated 4 days before sacrifice with 155 Mev protons, 2-8 Gy at 1 Gy/min (N=6) or 22-l0lGy at 20 Gy/min (N=16) or with 18.6 Mev electrons, 32-67 Gy at 20 Gy/min (N=20), doses which elicit behavioral changes (accelerod or conditioned taste aversion), resulted in a display of degeneration of astrocyte-like cell profiles which were not uniformly distributed. Plots of 'degeneration scores' (counts of profiles in 29 areas) vs. dose for the proton and electron irradiations displayed a linear dose response for protons in the range of 2-8 Gy. In the 20-100 Gy range, for both electrons and protons the points were distributed in a broad band suggesting a saturation curve. The dose range in which these astrocyte-like profiles becomes maximal corresponds well with the dose range for the X-ray eradication of a subtype of astrocytes, 'beta astrocytes'. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Switzer RC 3rd AU - Bogo, V AU - Mickley, G A AD - Department of Pathology, University of Tennessee Medical Center, Knoxville 37920, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 443 EP - 451 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - Rats KW - Radiation Dosage KW - Animals KW - Rats, Sprague-Dawley KW - Silver Staining -- methods KW - Dose-Response Relationship, Radiation KW - Behavior, Animal -- radiation effects KW - Male KW - Radiation, Ionizing KW - Electrons KW - Brain -- radiation effects KW - Brain -- pathology KW - Astrocytes -- radiation effects KW - Astrocytes -- pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110890?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Histologic+effects+of+high+energy+electron+and+proton+irradiation+of+rat+brain+detected+with+a+silver-degeneration+stain.&rft.au=Switzer+RC+3rd%3BBogo%2C+V%3BMickley%2C+G+A&rft.aulast=Switzer+RC+3rd&rft.aufirst=&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=443&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Galactic cosmic ray abundances and spectra behind defined shielding. AN - 77110887; 11540030 AB - LET spectra have been measured for lunar missions and for several near Earth orbits ranging from 28 degrees to 83 degrees inclination. In some of the experiments the flux of GCR was determined separately from contributions caused by interactions in the detector material. Results of these experiments are compared to model calculations. The general agreement justifies the use of the model to calculate GCR fluxes. The magnitude of variations caused by solar modulation, geomagnetic shielding, and shielding by matter determined from calculated LET spectra is generally in agreement with experimental data. However, more detailed investigations show that there are some weak points in modeling solar modulation and shielding by material. These points are discussed in more detail. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Heinrich, W AU - Benton, E V AU - Wiegel, B AU - Zens, R AU - Rusch, G AD - Physics Department, University of Siegen, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 815 EP - 824 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - NASA Discipline Radiation Health KW - unmanned KW - Flight Experiment KW - NASA Discipline Number 04-10 KW - Apollo Project KW - NASA Program Radiation Health KW - Non-NASA Center KW - STS Shuttle Project KW - manned KW - Skylab Project KW - Cosmos Project KW - short duration KW - long duration KW - LDEF Project KW - Magnetics KW - Spectrum Analysis KW - Solar Activity KW - Spacecraft -- instrumentation KW - Space Flight -- instrumentation KW - Radiometry KW - Radiation Protection KW - Cosmic Radiation KW - Linear Energy Transfer KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110887?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Galactic+cosmic+ray+abundances+and+spectra+behind+defined+shielding.&rft.au=Heinrich%2C+W%3BBenton%2C+E+V%3BWiegel%2C+B%3BZens%2C+R%3BRusch%2C+G&rft.aulast=Heinrich&rft.aufirst=W&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=815&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-30 N1 - Date created - 1997-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Inactivation of individual Bacillus subtilis spores in dependence on their distance to single cosmic heavy ions. AN - 77110850; 11539939 AB - For radiobiological experiments in space, designed to investigate biological effects of the heavy ions of the cosmic radiation field, a mandatory requirement is the possibility to spatially correlate the observed biological response of individual test organisms to the passage of single heavy ions. Among several undertakings towards this goal, the BIOSTACK experiments in the Apollo missions achieved the highest precision and therefore the most detailed information on this question. Spores of Bacillus subtilis as a highly radiation resistant and microscopically small test organism yielded these quantitative results. This paper will focus on experimental and procedural details, which must be included for an interpretation and a discussion of these findings in comparison to control experiments with accelerated heavy ions. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Facius, R AU - Reitz, G AU - Schafer, M AD - DLR, Institute for Aerospace Medicine, Koln, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 1027 EP - 1038 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - manned KW - Apollo-Soyuz Project KW - Apollo 16 Project KW - Flight Experiment KW - Apollo 17 Project KW - short duration KW - Radiation Dosage KW - Relative Biological Effectiveness KW - Radiometry -- instrumentation KW - Radiation Tolerance KW - Spores, Bacterial -- radiation effects KW - Research Design KW - Spores, Bacterial -- physiology KW - Bacillus subtilis -- physiology KW - Cosmic Radiation KW - Bacillus subtilis -- radiation effects KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110850?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Inactivation+of+individual+Bacillus+subtilis+spores+in+dependence+on+their+distance+to+single+cosmic+heavy+ions.&rft.au=Facius%2C+R%3BReitz%2C+G%3BSchafer%2C+M&rft.aulast=Facius&rft.aufirst=R&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=1027&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The NASA Space Radiation Health Program. AN - 77110829; 11539944 JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Schimmerling, W AU - Sulzman, F M AD - National Aeronautics and Space Administration, Washington, DC 20546, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 133 EP - 137 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Program Life Sciences Management KW - NASA Discipline Number 99-99 KW - NASA Center HQS KW - United States KW - Relative Biological Effectiveness KW - Space Flight KW - Humans KW - Research KW - Radiation Monitoring KW - United States National Aeronautics and Space Administration -- organization & administration KW - Aerospace Medicine KW - Radiobiology KW - Cosmic Radiation -- adverse effects KW - Risk Assessment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110829?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=The+NASA+Space+Radiation+Health+Program.&rft.au=Schimmerling%2C+W%3BSulzman%2C+F+M&rft.aulast=Schimmerling&rft.aufirst=W&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Particle trajectories in seeds of Lactuca sativa and chromosome aberrations after exposure to cosmic heavy ions on Cosmos Biosatellites 8 and 9. AN - 77110777; 11540038 AB - The potentially specific importance of the heavy ions of the galactic cosmic radiation for radiation protection in manned spaceflight continues to stimulate in situ, i.e., spaceflight experiments to investigate their radiobiological properties. Chromosome aberrations as an expression of a direct assault on the genome are of particular interest in view of cancerogenesis being the primary radiation risk for man in space. In such investigations the establishment of the geometrical correlation between heavy ions' trajectories and the location of radiation sensitive biological substructures is an essential task. The overall qualitative and quantitative precision achieved for the identification of particle trajectories in the order of approximately 10 micrometers as well as the contributing sources of uncertainties are discussed. We describe how this was achieved for seeds of Lactuca sativa as biological test organisms, whose location and orientation had to be derived from contact photographies displaying their outlines and those of the holder plates only. The incidence of chromosome aberrations in cells exposed during the COSMOS 1887 (Biosatellite 8) and the COSMOS 2044 (Biosatellite 9) mission was determined for seeds hit by cosmic heavy ions. In those seeds the incidence of both single and multiple chromosome aberrations was enhanced. The results of the Biosatellite 9 experiment, however, are confounded by spaceflight effects unrelated to the passage of heavy ions. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Facius, R AU - Scherer, K AU - Reitz, G AU - Bucker, H AU - Nevzgodina, L V AU - Maximova, E N AD - DLR, Institute for Aerospace Medicine, Koln, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 93 EP - 103 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - Cosmos 1887 Project KW - short duration KW - Cosmos 2044 Project KW - Radiation Dosage KW - Radiometry KW - Nuclear Physics KW - Spacecraft KW - Lettuce -- radiation effects KW - Lettuce -- genetics KW - Space Flight KW - Chromosome Aberrations KW - Seeds -- genetics KW - Genes, Plant -- radiation effects KW - Seeds -- radiation effects KW - Lettuce -- cytology KW - Cosmic Radiation -- adverse effects KW - Seeds -- cytology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110777?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Particle+trajectories+in+seeds+of+Lactuca+sativa+and+chromosome+aberrations+after+exposure+to+cosmic+heavy+ions+on+Cosmos+Biosatellites+8+and+9.&rft.au=Facius%2C+R%3BScherer%2C+K%3BReitz%2C+G%3BBucker%2C+H%3BNevzgodina%2C+L+V%3BMaximova%2C+E+N&rft.aulast=Facius&rft.aufirst=R&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiation factors in space and a system for their monitoring. AN - 77110707; 11540023 AB - The radiation environment is of special concern when the spaceship flies in deep space. The annual fluence of the galactic cosmic rays is approximately 10(8) cm-2 and the absorbed dose of the solar cosmic rays can reach 10 Gy per event behind the shielding thickness of 3-5 g cm-2 Al. For the radiation environment monitoring it is planned to place a measuring complex on the space probes "Mars" and "Spectr" flying outside the magnetosphere. This complex is to measure: cosmic rays composition, particle flux, dose equivalent, energy and LET spectra, solar X-rays spectrum. On line data transmission by the space probes permits to obtain the radiation environment data in space. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kovtunenko, V M AU - Kremnev, R S AU - Pichkhadze, K M AU - Bogomolov, V B AU - Kontor, N N AU - Filippichev, S A AU - Petrov, V M AU - Pissarenko, N F AD - Babakin Research Centre, Moscow, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 77 EP - 84 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Radiation Dosage KW - Space Flight -- instrumentation KW - Radiation Protection KW - Spacecraft KW - Linear Energy Transfer KW - Solar Activity KW - Cosmic Radiation KW - Extraterrestrial Environment KW - Radiation Monitoring -- instrumentation KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110707?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Radiation+factors+in+space+and+a+system+for+their+monitoring.&rft.au=Kovtunenko%2C+V+M%3BKremnev%2C+R+S%3BPichkhadze%2C+K+M%3BBogomolov%2C+V+B%3BKontor%2C+N+N%3BFilippichev%2C+S+A%3BPetrov%2C+V+M%3BPissarenko%2C+N+F&rft.aulast=Kovtunenko&rft.aufirst=V&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - CONF T1 - Life Sciences and Space Research XXV (2) radiation biology. Proceedings of the Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F2) of the COSPAR Twenty-ninth Plenary Meeting held in Washington, DC, 28 August-5 September, 1992. AN - 77110678; 11539965 JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 3 EP - 1050 VL - 14 IS - 10 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Center JSC KW - NASA Program Radiation Health KW - Non-NASA Center KW - Radiation Dosage KW - Animals KW - Relative Biological Effectiveness KW - Radiometry KW - Humans KW - Plants KW - Radiation Tolerance KW - Research KW - Spacecraft KW - Radiation Effects KW - Radiation Genetics KW - Solar Activity KW - Cosmic Radiation KW - Space Flight KW - Radiobiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110678?accountid=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=conference&rft.jtitle=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Life+Sciences+and+Space+Research+XXV+%282%29+radiation+biology.+Proceedings+of+the+Topical+Meeting+of+the+COSPAR+Interdisciplinary+Scientific+Commission+F+%28Meeting+F2%29+of+the+COSPAR+Twenty-ninth+Plenary+Meeting+held+in+Washington%2C+DC%2C+28+August-5+September%2C+1992.&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Peculiarities of the solar proton events of 19 October 1989 and 23 March 1991 according to the measurements onboard the Mir space station. AN - 77110555; 11540003 AB - Flux and dose rate dynamics of solar cosmic rays were measured by the Lyulin dosimeter during the events 19 October 1989 and 23 March 1991. The maximum dose rate registered was 0.4, 0.12 and 0.01 cGy/hour, respectively. Based on the latitude distribution of particle flux a power law form for the energy spectra of solar protons in the anisotropic phase of the events on 19 October 1989 and 23 March 1991 was determined. It was obtained that after the development of geomagnetic storm protons with energies more than 1 GeV were registered. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Petrov, V M AU - Mahkmtov, V S AU - Panova, N A AU - Shurshakov, V A AU - Dachev TsP AU - Semkova, J V AU - Matvijchuk YuP AD - Institute of Biomedical Problems, Moscow, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 645 EP - 650 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - manned KW - Flight Experiment KW - Mir Project KW - long duration KW - Radiation Dosage KW - Magnetics KW - Spacecraft -- instrumentation KW - Radiation Monitoring -- methods KW - Electrons KW - Space Flight -- instrumentation KW - Solar Activity KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110555?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Peculiarities+of+the+solar+proton+events+of+19+October+1989+and+23+March+1991+according+to+the+measurements+onboard+the+Mir+space+station.&rft.au=Petrov%2C+V+M%3BMahkmtov%2C+V+S%3BPanova%2C+N+A%3BShurshakov%2C+V+A%3BDachev+TsP%3BSemkova%2C+J+V%3BMatvijchuk+YuP&rft.aulast=Petrov&rft.aufirst=V&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=645&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-27 N1 - Date created - 1997-06-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Potential vascular damage from radiation in the space environment. AN - 77110498; 11539992 AB - Cultured endothelial cells of blood vessels have a Do of 2 Gy for X-rays. A dose of 0.5 Gy of X-rays has an acute effect on vessel diameter. The vessels may show other acute effects such as change in permeability including a change in the blood brain barrier. Changes occurring from late effects of chronic exposure in vascular architecture include telangiectasia and decrease in vascular density. Changes in the perivascular connective tissue particularly collagen may play a role in these changes. After charged particle exposure of 15 and 30 Gy, radiation changes in the blood brain barrier and vascular changes are noted in the nervous system. These long term changes are recorded by PET, MRI, and CT imaging. Chronic exposure to alpha particles causes vascular damage in compact bone resulting in bone infarcts. Using tandem scanning confocal microscopy in-situ imaging of the capillaries and collagen of the papillary dermis provides a non-invasive method of serial recording of changes in irradiated microvasculature. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Griem, M L AU - Robotewskyj, A AU - Nagel, R H AD - Department of Radiation Oncology, University of Chicago Medical Center, IL 60637, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 555 EP - 563 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Collagen KW - 9007-34-5 KW - Space life sciences KW - Animals KW - Video Recording KW - Humans KW - Rabbits KW - Dose-Response Relationship, Radiation KW - Microscopy, Confocal -- methods KW - Ear -- blood supply KW - Collagen -- metabolism KW - Blood Vessels -- radiation effects KW - Ear -- radiation effects KW - Collagen -- radiation effects KW - Epidermis -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110498?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Potential+vascular+damage+from+radiation+in+the+space+environment.&rft.au=Griem%2C+M+L%3BRobotewskyj%2C+A%3BNagel%2C+R+H&rft.aulast=Griem&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=555&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Solar particle events as seen on CRRES. AN - 77110456; 11540000 AB - High energy proton detectors on the Combined Release and Radiation Effects Satellite (CRRES) were used to measure near-Earth solar protons in an 18 degrees inclination orbit between 350 km and 36000 km from July 1990 to October 1991. CRRES data from the major solar particle event on 23-25 March 1991 show conclusively that MeV solar protons can penetrate deep inside the magnetosphere (to an L-shell of 2.5 RE) when a large shock-induced Sudden Storm Commencement (SSC) occurs and significant solar particle populations are present at geosynchronous altitudes. The penetration of solar particles well inside boundaries predicted by Stormer theory occurred during every large solar event of the CRRES mission, as well as many of the smaller ones. Often the deep penetrations occurred simultaneously with the formation of new trapped radiation populations which peak at L-values between 2.3 and 4 RE (depending on particle energy) and which last from days to months. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Gussenhoven, M S AU - Mullen, E G AU - Violet, M D AD - Phillips Laboratory, PL/GPSP, Hanscom AFB, MA 01731, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 619 EP - 629 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - CRRES Project KW - unmanned KW - Flight Experiment KW - long duration KW - Magnetics KW - Extraterrestrial Environment KW - Earth (Planet) KW - Solar Activity KW - Spacecraft -- instrumentation KW - Space Flight KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110456?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Solar+particle+events+as+seen+on+CRRES.&rft.au=Gussenhoven%2C+M+S%3BMullen%2C+E+G%3BViolet%2C+M+D&rft.aulast=Gussenhoven&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=619&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Cosmic radiation and evolution of life on earth: roles of environment, adaptation and selection. AN - 77110437; 11539966 AB - The role of ionizing radiation in general, and cosmic radiation in particular, in the evolution of organisms on the earth by adaptation and natural selection is considered in a series of questions: (1) Are there times during the evolution of the earth and of life when genetic material could be exposed to heavy ion radiation? (2) Throughout the course of chemical and biological evolution on the earth, what fraction of environmental mutagenesis could be attributable to cosmic and/or solar ionizing radiation? (3) Is ionizing radiation an agent of adaptation or selection, or both? (4) What can the cladistics of the evolution of genetic repair tell us about the global history of genotoxic selection pressures? (5) How much genetic diversity can be attributed to the selection of radiation-damage repair processes? JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Todd, P AD - University of Colorado, Boulder 80309-0424, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 305 EP - 313 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Animals KW - DNA Replication -- radiation effects KW - Plants KW - Radiation Tolerance KW - Earth (Planet) KW - Mutation KW - Mutagenesis -- radiation effects KW - Origin of Life KW - DNA Repair KW - Cosmic Radiation KW - Biological Evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110437?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Cosmic+radiation+and+evolution+of+life+on+earth%3A+roles+of+environment%2C+adaptation+and+selection.&rft.au=Todd%2C+P&rft.aulast=Todd&rft.aufirst=P&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Ulysses charged particle measurements between 1 and 5 AU from the sun. AN - 77110423; 11539999 AB - Proton fluxes obtained by two instruments carried on the ESA/NASA Ulysses spacecraft are reported for the period from launch in October 1990 till Jupiter encounter in February 1992. Proton energy ranges are 24-59, 71-99, 130-320, 320-2100 and > 2100 MeV. The Sun was very active during this period, the events of March 1991 being some of the largest of the solar cycle. The relationship between events on the Sun and the observed proton flux is discussed. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Page, D E AU - Smith, E J AU - Wenzel, K P AD - ESA/JPL, Jet Propulsion Laboratory, Pasadena, CA 91109, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 611 EP - 618 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - Ulysses Project KW - unmanned KW - Flight Experiment KW - Scattering, Radiation KW - Extraterrestrial Environment KW - Jupiter KW - Solar System KW - Electrons KW - Solar Activity KW - Spacecraft -- instrumentation KW - Space Flight KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110423?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Ulysses+charged+particle+measurements+between+1+and+5+AU+from+the+sun.&rft.au=Page%2C+D+E%3BSmith%2C+E+J%3BWenzel%2C+K+P&rft.aulast=Page&rft.aufirst=D&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The role of hydration and radiation quality in the induction of DNA damage--chemical aspects. AN - 77110391; 11539956 AB - The mutagenic and lethal effects of ionising radiation are thought to result from chemical modifications induced within DNA. This DNA damage is significantly influenced by the chemical environment and the radiation quality (LET). Water closely associated with the DNA and its immediate environment is involved in the early chemical pathways which lead to the induction of DNA damage and is reflected in the cellular radiosensitivity. For instance, hydration of DNA influences hole migration leading to its localisation at guanine. Changes in the radiation quality are discussed in terms of the complexity of the radical clusters produced. It is inferred that at higher LET, the influence of the chemical environment (O2 etc) decreases with respect to DNA damage and cellular radiosensitivity. It is therefore important to include these effects of environment of the DNA upon the early chemical pathways in models of radiation action. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - O'Neill, P AD - Division of Radiobiological Mechanisms, MRC Radiobiology Unit, Didcot, U.K. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 221 EP - 234 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Water KW - 059QF0KO0R KW - Hydroxyl Radical KW - 3352-57-6 KW - DNA KW - 9007-49-2 KW - Oxygen KW - S88TT14065 KW - Dimethyl Sulfoxide KW - YOW8V9698H KW - Space life sciences KW - Dimethyl Sulfoxide -- pharmacology KW - Relative Biological Effectiveness KW - Radiation Tolerance KW - Luminescence KW - Radiation, Ionizing KW - Electrons KW - DNA Damage KW - Water -- chemistry KW - DNA -- chemistry KW - DNA -- radiation effects KW - Linear Energy Transfer KW - DNA -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110391?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=The+role+of+hydration+and+radiation+quality+in+the+induction+of+DNA+damage--chemical+aspects.&rft.au=O%27Neill%2C+P&rft.aulast=O%27Neill&rft.aufirst=P&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Initial approach to comparative studies on the evolutionary potentials of space radiation effects in a plant system. AN - 77110352; 11539973 AB - The role of cosmic ionizing radiation, including heavy ions (HZE-particles) in the induction of mutations at the molecule-, chromosome-, genome- and cell-level is discussed on the basis of different DNA organization in a pro- and eukaryotically compartmented plant system (Arabidopsis thaliana (L.) Heynh.). Data recently obtained on the biological effects of ionizing radiation make it timely to discuss comparatively the evolutionary potentials of space radiation effects in the pro- and eukaryotic genomes (plasmon, plastidom, chondriom, and nucleom) during long duration exposure on space flights. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kranz, A R AU - Gartenbach, K E AU - Zimmermann, M W AD - Botanical Institute, J.W. Goethe-University, Frankfurt am Main, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 383 EP - 388 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - Cosmos 1887 Project KW - short duration KW - long duration KW - LDEF Project KW - Spacecraft KW - Mutation KW - Arabidopsis -- genetics KW - Cosmic Radiation KW - Biological Evolution KW - Arabidopsis -- radiation effects KW - Space Flight KW - Seeds -- genetics KW - Seeds -- radiation effects KW - Mutagenesis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110352?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Initial+approach+to+comparative+studies+on+the+evolutionary+potentials+of+space+radiation+effects+in+a+plant+system.&rft.au=Kranz%2C+A+R%3BGartenbach%2C+K+E%3BZimmermann%2C+M+W&rft.aulast=Kranz&rft.aufirst=A&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=383&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Relative biological effectiveness and microdosimetry of a mixed energy field of protons up to 200 MeV. AN - 77110282; 11539961 AB - We have studied radiation effects utilizing the new 250 MeV Synchrotron at Loma Linda University Medical Center. In this paper we present the data collected for the survival of Chinese hamster lung (V79) cells, that were irradiated with a beam of mixed energy protons up to 200 MeV. The RBE for protons, when compared to 60Co gamma rays, ranged from a low of 1.2 at the high energy portion of the field to 1.3+ at the low energy portion of the field. These results are consistent with the measured lineal energy (microdosimetric) spectra. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Robertson, J B AU - Eaddy, J M AU - Archambeau, J O AU - Coutrakon, G B AU - Miller, D W AU - Moyers, M F AU - Siebers, J V AU - Slater, J M AU - Dicello, J F AD - East Carolina University, Greenville, NC 27858, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 271 EP - 275 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Cobalt Radioisotopes KW - 0 KW - Protons KW - Space life sciences KW - Phantoms, Imaging KW - Radiation Dosage KW - Animals KW - Relative Biological Effectiveness KW - Particle Accelerators KW - Cell Survival -- radiation effects KW - Linear Energy Transfer KW - Cell Line KW - Cricetinae KW - Gamma Rays KW - Cells, Cultured -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110282?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Relative+biological+effectiveness+and+microdosimetry+of+a+mixed+energy+field+of+protons+up+to+200+MeV.&rft.au=Robertson%2C+J+B%3BEaddy%2C+J+M%3BArchambeau%2C+J+O%3BCoutrakon%2C+G+B%3BMiller%2C+D+W%3BMoyers%2C+M+F%3BSiebers%2C+J+V%3BSlater%2C+J+M%3BDicello%2C+J+F&rft.aulast=Robertson&rft.aufirst=J&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiation effects in nematodes: results from IML-1 experiments. AN - 77110236; 11540032 AB - The nematode Caenorhabditis elegans was exposed to natural space radiation using the ESA Biorack facility aboard Spacelab on International Microgravity Laboratory 1, STS-42. For the major experimental objective dormant animals were suspended in buffer or on agar or immobilized next to CR-39 plastic nuclear track detectors to correlate fluence of HZE particles with genetic events. This configuration was used to isolate mutations in a set of 350 essential genes as well as in the unc-22 structural gene. From flight samples 13 mutants in the unc-22 gene were isolated along with 53 lethal mutations from autosomal regions balanced by a translocation eT1(III;V). Preliminary analysis suggests that mutants from worms correlated with specific cosmic ray tracks may have a higher proportion of rearrangements than those isolated from tube cultures on a randomly sampled basis. Right sample mutation rate was approximately 8-fold higher than ground controls which exhibited laboratory spontaneous frequencies. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Nelson, G A AU - Schubert, W W AU - Kazarians, G A AU - Richards, G F AU - Benton, E V AU - Benton, E R AU - Henke, R AD - Jet Propulsion Laboratory, California Institute of Technology, Pasadena 91109, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 87 EP - 91 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - manned KW - NASA Discipline Radiation Health KW - Flight Experiment KW - NASA Discipline Number 04-10 KW - STS-42 Shuttle Project KW - short duration KW - NASA Program Radiation Health KW - NASA Center JPL KW - Non-NASA Center KW - Thermoluminescent Dosimetry KW - Radiation Dosage KW - Animals KW - Genes, Helminth -- radiation effects KW - Radiation Monitoring KW - Linear Energy Transfer KW - Caenorhabditis elegans -- radiation effects KW - Cosmic Radiation KW - Space Flight KW - Mutation KW - Weightlessness KW - Caenorhabditis elegans -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110236?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Radiation+effects+in+nematodes%3A+results+from+IML-1+experiments.&rft.au=Nelson%2C+G+A%3BSchubert%2C+W+W%3BKazarians%2C+G+A%3BRichards%2C+G+F%3BBenton%2C+E+V%3BBenton%2C+E+R%3BHenke%2C+R&rft.aulast=Nelson&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-21 N1 - Date created - 1997-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - On the parameterization of the biological effect in a mixed radiation field. AN - 77110139; 11540044 AB - The exposure of astronauts and electronics to the cosmic radiation especially to the particle component pose a major risk to all space flights. Up to now it is not possible to quantify this risk within acceptable limits of accuracy. This uncertainty is not only caused by difficulties in the more or less exact prediction of the incidence of the cosmic radiation but depends also on the problem of the quantification of the radiation field and the correlation of the biological effect. Usually the biological action of a mixed radiation field is estimated as product of the measured dose with an average quality factor, the relative biological efficiency. Because of the large variation in energy and atomic number of the cosmic particles, average values of the quality factor are not precise for risk estimation. A more appropriate way to treat the biological effects of mixed radiation is the concept of particle fluence and action cross section. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kraft, G AU - Scholz, M AD - Biophysik-GSI, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 997 EP - 1004 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - DNA KW - 9007-49-2 KW - Space life sciences KW - Radiation Dosage KW - Animals KW - Cosmic Radiation KW - Cells, Cultured KW - Space Flight KW - Particle Accelerators KW - Radiometry -- methods KW - Electronics KW - Radiobiology KW - Mathematics KW - Cricetinae KW - Relative Biological Effectiveness KW - DNA Damage KW - DNA -- radiation effects KW - Linear Energy Transfer KW - Radiation, Ionizing KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110139?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=On+the+parameterization+of+the+biological+effect+in+a+mixed+radiation+field.&rft.au=Kraft%2C+G%3BScholz%2C+M&rft.aulast=Kraft&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=997&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Issues and problems for radiobiological research in space. AN - 77110077; 11540043 AB - The uniqueness of the space radiation field creates specific problems in the evaluation of hazards to men and materials. Comprehensive measurements of all physical parameters are necessary but not sufficient. Particular attention has to be paid to variables like solar flares by applying fast-responding active dosimetry. The assessment of biological consequences poses even more problems. There are no human data for the kinds of particles seen in space and they will presumably never be available. The only reasonable approach is therefore to use the information obtained for other radiations and check their applicability for the space situation. This involves both the study of fundamental processes in ground experiments as well as their verification in space missions. Special emphasis has to be laid on the modification of radiation effects by flight-dynamic factors and microgravity. Radiation protection guidelines for space flights cannot simply be transformed from existent regulations designed for radiation workers on earth but have to be tailored to the specific situation in space. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kiefer, J AD - Strahlenzentrum der Justus-Liebig-Universitat, Giessen, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 979 EP - 988 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Animals KW - Relative Biological Effectiveness KW - DNA Repair KW - Yeast, Dried KW - DNA Damage KW - Humans KW - Aerospace Medicine KW - Mutation KW - Linear Energy Transfer KW - Risk Assessment KW - Cricetinae KW - Solar Activity KW - Cosmic Radiation KW - Space Flight KW - Cells, Cultured -- radiation effects KW - Radiobiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110077?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Issues+and+problems+for+radiobiological+research+in+space.&rft.au=Kiefer%2C+J&rft.aulast=Kiefer&rft.aufirst=J&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=979&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Large Ground Level events in solar cycle 22 and some peculiarities of relativistic proton acceleration. AN - 77109933; 11540014 AB - Some of the Ground Level Enhancements of Solar Cosmic Rays (SCR) recorded by neutron monitors during solar cycle 22 are analyzed. The events appeared in series, and their occurrence rate in 1989-1991 was a factor of 4 larger than the average value (approximately equal to 1/yr) for the total observation interval (since 1942). The events of Sept. 29 and Oct. 24, 1989 proved to be the more intensive. The analyzed events show no peculiarities as to the distribution of the T1/2 parameter, whereas the shape of the profile of some events is notable for a two peak structure. The latter implies the possibility of a two component SCR ejection from two different sources in the solar atmosphere. For the event of Sep. 29 we have estimated the ejection rigidity spectrum of protons to be D solar (R) = (1-2) 10(32)R(-2.9) Gv-1 at R greater than or equal to 1 Gv. As to its proton flux, this event proved to be by 1-2 orders less intensive than the well known event of Feb. 23 1956. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Vashenyuk, E V AU - Miroshnichenko, L I AU - Sorokin, M O AU - Perez-Peraza, J AU - Gallegos, A AD - Polar Geophysical Institute, Apatity, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 711 EP - 716 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - Scattering, Radiation KW - Magnetics KW - Earth (Planet) KW - Time Factors KW - Models, Theoretical KW - Neutrons KW - Solar Activity KW - Radiation Monitoring -- statistics & numerical data UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109933?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Large+Ground+Level+events+in+solar+cycle+22+and+some+peculiarities+of+relativistic+proton+acceleration.&rft.au=Vashenyuk%2C+E+V%3BMiroshnichenko%2C+L+I%3BSorokin%2C+M+O%3BPerez-Peraza%2C+J%3BGallegos%2C+A&rft.aulast=Vashenyuk&rft.aufirst=E&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=711&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-12-17 N1 - Date created - 1997-12-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Contribution of secondaries to the radiation environment on space missions. AN - 77109925; 11540039 AB - Calculations to predict the radiation environment for spacecraft in low earth orbit sometimes ignore the contribution from secondary radiation products. However, the contribution of secondaries, particularly neutrons, on heavy spacecraft or in planetary bodies can be of concern for biological systems. The Shuttle Activation Monitor (SAM) and Cosmic Radiation Effects and Activation Monitor (CREAM) experiments provide valuable data on secondary (as well as primary) radiation effects. Comparisons have been made between induced activity from flight-exposed samples, induced activity in a ground-irradiated sample, and Monte Carlo-derived predictions with and without secondaries. These comparisons show that for a flight-exposed sample, predictions which omit the secondary contribution result in a spectrum that is too low by a factor of 2. The addition of the secondaries results in a predicted spectrum that closely matches the measured data. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Haskins, P AU - McKisson, J AU - Truscott, P AU - Dyer, C AU - Flatman, J AU - Snead, L AU - Rothmann, J AU - Ward, T AU - Camp, D AD - Institute for Space Science and Technology, Gainesville, FL 32609, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 943 EP - 946 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Germanium KW - 00072J7XWS KW - bismuth germanium oxide KW - 12233-56-6 KW - Bismuth KW - U015TT5I8H KW - Space life sciences KW - manned KW - STS-48 Shuttle Project KW - Flight Experiment KW - short duration KW - Radiation Protection KW - Monte Carlo Method KW - Neutrons KW - Space Flight -- instrumentation KW - Radiation Monitoring -- instrumentation KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109925?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Contribution+of+secondaries+to+the+radiation+environment+on+space+missions.&rft.au=Haskins%2C+P%3BMcKisson%2C+J%3BTruscott%2C+P%3BDyer%2C+C%3BFlatman%2C+J%3BSnead%2C+L%3BRothmann%2C+J%3BWard%2C+T%3BCamp%2C+D&rft.aulast=Haskins&rft.aufirst=P&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=943&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Microelectronics effects as seen on CRRES. AN - 77109861; 11540028 AB - A MicroElectronics Test Package (MEP) measured total dose degradation and single event upsets (SEUs) on 60 device types on the Combined Release and Radiation Effects Satellite (CRRES) in an 18 degrees inclination orbit between 350 km and 36000 km from July 1990 to October 1991. Simultaneous measurements of the high energy particle environment were used to make a direct cause and effect comparison of the energetic particle backgrounds and microelectronic performance characteristics. The galactic cosmic ray background for the period of the CRRES mission was at a minimum. The SEUs experienced from the cosmic ray background were correspondingly few in number, but surprisingly produced an equal probability of upset over an L-shell range of 8.5 Earth radii (RE) down to less than 3.0 RE. Cosmic ray induced upset frequencies in proton sensitive chips were over 2 orders of magnitude lower than those produced by protons in the heart of the inner proton radiation belts. Multiple upsets, those produced when a single particle upsets more than one memory location, were just as common from protons as from cosmic rays. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Mullen, E G AU - Ray, K P AD - Phillips Laboratory, Hanscom AFB, MA 01731, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 797 EP - 807 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - CRRES Project KW - unmanned KW - Flight Experiment KW - long duration KW - Radiometry -- instrumentation KW - Linear Energy Transfer KW - Space Flight -- instrumentation KW - Solar Activity KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Electronics KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109861?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Microelectronics+effects+as+seen+on+CRRES.&rft.au=Mullen%2C+E+G%3BRay%2C+K+P&rft.aulast=Mullen&rft.aufirst=E&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=797&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-30 N1 - Date created - 1997-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Uncertainties in radiation effect predictions for the natural radiation environments of space. AN - 77109850; 11540040 AB - Future manned missions beyond low earth orbit require accurate predictions of the risk to astronauts and to critical systems from exposure to ionizing radiation. For low-level exposures, the hazards are dominated by rare single-event phenomena where individual cosmic-ray particles or spallation reactions result in potentially catastrophic changes in critical components. Examples might be a biological lesion leading to cancer in an astronaut or a memory upset leading to an undesired rocket firing. The risks of such events appears to depend on the amount of energy deposited within critical sensitive volumes of biological cells and microelectronic components. The critical environmental information needed to estimate the risks posed by the natural space environments, including solar flares, is the number of times more than a threshold amount of energy for an event will be deposited in the critical microvolumes. These predictions are complicated by uncertainties in the natural environments, particularly the composition of flares, and by the effects of shielding. Microdosimetric data for large numbers of orbits are needed to improve the environmental models and to test the transport codes used to predict event rates. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - McNulty, P J AU - Stassinopoulos, E G AD - Department of Physics and Astronomy, Clemson University, SC 29634-1911, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 947 EP - 957 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - manned KW - CRRES Project KW - unmanned KW - Skylab Project KW - Flight Experiment KW - short duration KW - long duration KW - Apollo Project KW - Radiometry KW - Humans KW - Electronics KW - Radiation Monitoring KW - Mutation KW - Linear Energy Transfer KW - Eye -- radiation effects KW - Risk Assessment KW - Cosmic Radiation KW - Space Flight KW - Radiobiology -- methods KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109850?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Uncertainties+in+radiation+effect+predictions+for+the+natural+radiation+environments+of+space.&rft.au=McNulty%2C+P+J%3BStassinopoulos%2C+E+G&rft.aulast=McNulty&rft.aufirst=P&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=947&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - An inductive assessment of radiation risks in space. AN - 77109767; 11540034 AB - Procedures for the assessment of risks or vulnerabilities from radiation in space are evaluated in terms of model-independent inductive approaches. The reliability of risks calculated for space applications on the basis of accelerator-based physical and biological data is examined from a microdosimetric perspective. Probability distributions for energy deposition in biologically significant sites extend over several decades in lineal energy even for monoenergetic high-energy particles of relatively high atomic number. Because the response depends on a large number of variables and because of the difficulty of incorporating all such factors into calculations, a precise correlation between a physical descriptor of the field and observed effects in space is not feasible. For the same reasons, it is equally difficult to estimate the accuracies of such risk assessments. We use recently published microdosimetric spectra for HZE particles and biological weighting functions, including those derived from biological measurements with maximum entropy techniques, to illustrate some problems associated with the evaluations of risks from radiation fields in space. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Dicello, J F AU - Zaider, M AU - Varma, M N AD - Radiation Oncology, Johns Hopkins Oncology Center, Baltimore, MD 21287-5001, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 899 EP - 910 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Evaluation Studies as Topic KW - Radiation Dosage KW - Animals KW - Relative Biological Effectiveness KW - Particle Accelerators KW - Mice, Inbred C3H KW - Mice KW - Linear Energy Transfer KW - Radiation Monitoring -- instrumentation KW - Cell Transformation, Neoplastic KW - Risk Assessment KW - Mathematics KW - Cosmic Radiation KW - Space Flight KW - Elementary Particles KW - Radiobiology -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109767?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=An+inductive+assessment+of+radiation+risks+in+space.&rft.au=Dicello%2C+J+F%3BZaider%2C+M%3BVarma%2C+M+N&rft.aulast=Dicello&rft.aufirst=J&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=899&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Stratospheric measurements of cosmic rays in the 19th-22nd solar activity cycles. AN - 77109431; 11540025 AB - Balloon measurements of cosmic rays were made practically every day at several locations of the former USSR and in Antarctica over a period of more than 30 years. These measurements provide a means for assessment and control of ionizing radiation at the altitudes from ground level up to 30-35 km. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Bazilevskaya, G A AU - Krainev, M B AU - Stozhkov YuI AU - Svirzhevskaya, A K AU - Svirzhevsky, N S AD - P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 779 EP - 782 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - unmanned KW - Balloon Flight KW - Flight Experiment KW - Radiometry KW - Earth (Planet) KW - Time Factors KW - Radiation Monitoring -- methods KW - Solar Activity KW - Cosmic Radiation KW - Atmosphere UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109431?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Stratospheric+measurements+of+cosmic+rays+in+the+19th-22nd+solar+activity+cycles.&rft.au=Bazilevskaya%2C+G+A%3BKrainev%2C+M+B%3BStozhkov+YuI%3BSvirzhevskaya%2C+A+K%3BSvirzhevsky%2C+N+S&rft.aulast=Bazilevskaya&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=779&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-30 N1 - Date created - 1997-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Spectrometers for fast neutrons from solar flares. AN - 77109036; 11540017 AB - Neutrons with energies exceeding 1 GeV are emitted in the course of solar flares. Suitable dedicated neutron spectrometers with directional characteristics are necessary for a systematic spectroscopy of solar neutrons. We report here a study of instruments based on the detection of proton recoils from hydrogenous media, with double scattering in order to provide directional information, and also a novel scheme based on the detection of radiation from the neutron magnetic dipole moment, permitting also directional detection of neutrons. Specific designs and detection systems are discussed. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Slobodrian, R J AU - Potvin, L AU - Rioux, C AD - Universite Laval, Departement de Physique, Quebec, Canada. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 725 EP - 730 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - Equipment Design KW - Scattering, Radiation KW - Spacecraft -- instrumentation KW - Spectrum Analysis -- instrumentation KW - Neutrons KW - Radiation Monitoring -- methods KW - Solar Activity KW - Astronomy -- instrumentation KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109036?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Spectrometers+for+fast+neutrons+from+solar+flares.&rft.au=Slobodrian%2C+R+J%3BPotvin%2C+L%3BRioux%2C+C&rft.aulast=Slobodrian&rft.aufirst=R&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=725&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-30 N1 - Date created - 1997-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comparison of measured cosmic ray LET spectra with models and predictions. AN - 77108996; 11540042 AB - Radiation effects of cosmic ray nuclei are generally described as a function of the particle LET. For a large number of space missions LET spectra have been measured and models have been developed to calculate these spectra that include the effects of geomagnetic shielding and shielding provided by material. In this paper we compare measured and calculated LET spectra. For low earth orbits events with high local energy deposition, i.e., short range secondaries, contribute significantly to the measured spectra. These events are produced by nuclear interactions, mainly induced by protons from the south atlantic anomaly. The technique to include these contributions in the models depends on the size of radiation sensitive volumes. For sizes comparable to or larger than the range of target secondaries it is essential to separate contributions by target interactions from those of cosmic rays. This separation is possible in experiments which use stacks of plastic nuclear track detectors. The yield of short range events generated by protons and measured in the detector can be calibrated from accelerator experimental data. We present first results for CR-39 detectors. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Heinrich, W AU - Benton, E V AU - Wiegel, B AU - Rusch, G AU - Becker, E AD - Physics Department, University of Siegen, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 969 EP - 977 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Plastics KW - 0 KW - Protons KW - CR 39 KW - 25656-90-0 KW - Polyethylene Glycols KW - 30IQX730WE KW - Space life sciences KW - unmanned KW - Flight Experiment KW - Cosmos 1887 Project KW - short duration KW - long duration KW - LDEF Project KW - Cosmos 2044 Project KW - Solar Activity KW - Forecasting KW - Mathematics KW - Radiometry -- instrumentation KW - Space Flight -- instrumentation KW - Cosmic Radiation KW - Linear Energy Transfer KW - Radiation Monitoring -- instrumentation KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77108996?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Comparison+of+measured+cosmic+ray+LET+spectra+with+models+and+predictions.&rft.au=Heinrich%2C+W%3BBenton%2C+E+V%3BWiegel%2C+B%3BRusch%2C+G%3BBecker%2C+E&rft.aulast=Heinrich&rft.aufirst=W&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=969&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Biophysical effect of cosmic heavy ions of distinct LET-classes in a plant model system. AN - 77108965; 11539938 AB - Results presented from recent space flight BION 9 show biological effects of different LET-classes of HZE-particles in different target regions of the seed (meristem and the whole embryo) of Arabidopsis thaliana (L.) Heyhn. HZE-one hit events and non-hit events, i.e. only hit by the low-LET background radiation, and their combined effects on the biological damage endpoint lethality are distinguished. This procedure is opening the opportunity of an approach to comparative studies of the biological effects induced by cosmic HZE-particles of different LET-ranges interacting in the complex cosmic radiation spectrum and with other space flight conditions. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kranz, A R AU - Gartenbach, K E AU - Pickert-Andres, M AU - Schopper, E AU - Baican, B AD - J.W. Goethe University, Frankfurt/Mainz, Germany. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 1021 EP - 1026 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - unmanned KW - Flight Experiment KW - short duration KW - Cosmos 2044 Project KW - Radiation Dosage KW - Relative Biological Effectiveness KW - Radiometry KW - Cosmic Radiation KW - Arabidopsis -- radiation effects KW - Space Flight KW - Seeds -- radiation effects KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77108965?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Biophysical+effect+of+cosmic+heavy+ions+of+distinct+LET-classes+in+a+plant+model+system.&rft.au=Kranz%2C+A+R%3BGartenbach%2C+K+E%3BPickert-Andres%2C+M%3BSchopper%2C+E%3BBaican%2C+B&rft.aulast=Kranz&rft.aufirst=A&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=1021&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Recent space shuttle observations of the South Atlantic Anomaly and the radiation belt models. AN - 77108340; 11540035 AB - Active instruments consisting of a tissue equivalent proportional counter (TEPC) and a proton and heavy ion detector (PHIDE) have been carried on a number of Space Shuttle flights. These instruments have allowed us to map out parts of the South Atlantic Particle Anomaly (SAA) and to compare some of its features with predictions of the AP-8 energetic proton flux models. We have observed that consistent with the generally observed westward drift of the surface features of the terrestrial magnetic field the SAA has moved west by about 6.9 degrees longitude between the epoch year 1970 of the AP-8 solar maximum model and the Space Shuttle observations made twenty years later. However, calculations indicate that except for relatively brief periods following very large magnetic storms the SAA seems to occupy the same position in L-space as in 1970. After the great storm of 24 March 1991 reconfiguration of the inner radiation belt and/or proton injection into the inner belt, a second energetic proton belt was observed to form at L approximately = 2. As confirmed by a subsequent flight observations, this belt was shown to persist at least for six months. Our measurements also indicate an upward shift in the L location of the primary belt from L = 1.4 to L = 1.5. In addition we confirm through direct real time observations the existence and the approximate magnitude of the East-West effect. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Konradi, A AU - Badhwar, G D AU - Braby, L A AD - NASA Johnson Space Center, Houston, TX 77058, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 911 EP - 921 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - STS-31 Shuttle Project KW - NASA Discipline Radiation Health KW - Flight Experiment KW - NASA Discipline Number 04-10 KW - NASA Center JSC KW - NASA Program Radiation Health KW - STS-40 Shuttle Project KW - Non-NASA Center KW - manned KW - STS-48 Shuttle Project KW - short duration KW - STS-37 Shuttle Project KW - Radiation Dosage KW - South America KW - Magnetics KW - Radiometry KW - Spacecraft -- instrumentation KW - Atlantic Ocean KW - Space Flight -- instrumentation KW - Solar Activity KW - Atmosphere KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77108340?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Recent+space+shuttle+observations+of+the+South+Atlantic+Anomaly+and+the+radiation+belt+models.&rft.au=Konradi%2C+A%3BBadhwar%2C+G+D%3BBraby%2C+L+A&rft.aulast=Konradi&rft.aufirst=A&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=911&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Measurements of trapped protons and cosmic rays from recent Shuttle flights. AN - 77107827; 11540006 AB - We have flown two new charged particle detectors in five recent Shuttle flights. In this paper we report on the dose rate, equivalent dose rate, and radiation quality factor for trapped protons and cosmic radiation separately. A comparison of the integral linear energy transfer (LET) spectra with recent transport code calculations show significant disagreement. Using the calculated dose rate from the omni-directional AP8MAX model with IGRF reference magnetic field epoch 1970, and observed dose rate as a function of (averaged over all geographic latitude) and longitude, we have determined the westward drift of the South Atlantic anomaly. We have also studied the east-west effect, and observed a 'second' radiation belt. A comparison of the galactic cosmic radiation lineal energy transfer spectra with model calculations shows disagreement comparable to those of the trapped protons. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Badhwar, G D AU - Konradi, A AU - Braby, L A AU - Atwell, W AU - Cucinotta, F A AD - NASA Johnson Space Center, Houston, TX 77058, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 67 EP - 72 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - manned KW - NASA Discipline Radiation Health KW - Flight Experiment KW - NASA Center JSC KW - short duration KW - STS Shuttle Project KW - Radiation Dosage KW - South America KW - Radiometry -- instrumentation KW - Spacecraft -- instrumentation KW - Linear Energy Transfer KW - Atlantic Ocean KW - Radiation Monitoring -- methods KW - Space Flight -- instrumentation KW - Cosmic Radiation KW - Radiation Monitoring -- statistics & numerical data KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77107827?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Measurements+of+trapped+protons+and+cosmic+rays+from+recent+Shuttle+flights.&rft.au=Badhwar%2C+G+D%3BKonradi%2C+A%3BBraby%2C+L+A%3BAtwell%2C+W%3BCucinotta%2C+F+A&rft.aulast=Badhwar&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-12-17 N1 - Date created - 1997-12-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiation environment due to galactic and solar cosmic rays during manned mission to Mars in the periods between maximum and minimum solar activity cycles. AN - 77107795; 11540024 AB - A possibility of a manned mission to Mars without exceeding the current radiation standards is very doubtful during the periods of minimum solar activity since the dose equivalent due to galactic cosmic rays exceeds currently recommended standards even inside a radiation shelter with an equivalent of 30 g cm-2 aluminum. The radiation situation at the time of maximum solar activity is determined by the occurrence of major solar proton events which are exceedingly difficult to forecast. This paper discusses the radiation environment during a manned mission to Mars in the years between minimum and maximum solar activity when the galactic cosmic ray intensity is considerably reduced, but the solar flare activity has not yet maximized. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Pissarenko, N F AD - Space Research Institute, Moscow, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 771 EP - 778 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Radiation Dosage KW - Radiation Protection KW - Maximum Allowable Concentration KW - Mars KW - Time Factors KW - Solar Activity KW - Cosmic Radiation KW - Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77107795?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Radiation+environment+due+to+galactic+and+solar+cosmic+rays+during+manned+mission+to+Mars+in+the+periods+between+maximum+and+minimum+solar+activity+cycles.&rft.au=Pissarenko%2C+N+F&rft.aulast=Pissarenko&rft.aufirst=N&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=771&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-30 N1 - Date created - 1997-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Fluxes of galactic iron nuclei and associated HZE secondaries, and resulting radiation doses, in the brain of an astronaut. AN - 77107420; 11540033 AB - Although galactic iron nuclei constitute only a small percentage of the total flux of radiation in space, they are extremely significant from a biological standpoint, and represent a concern for long-term manned space missions of the future. Dosages resulting from iron nuclei, and the high-charge secondary nuclei subsequently produced in nuclear fragmentation reactions, have been calculated at the centre of a simple model of the human brain, shielded by various thicknesses of aluminium. Three mission scenarios are considered representing different geomagnetic shielding conditions at solar minimum. Without artificial shielding absorbed dose rates outside the magnetosphere, in polar orbit and in the proposed Space Station orbit, are approximately 0.3, 0.1 and 0.03 cGy/year respectively, corresponding to dose equivalent rates of 8.0, 2.5 and 0.8 cSv/year, and decreasing by roughly a factor of two behind 10 g/cm2 of aluminium. In line with new approaches to risk estimation based on particle fluence and track structure, calculations of the number of cell nuclei likely to be struck by these HZE particles are also presented. Behind 10 g/cm2 of aluminium, 3.4%, 1.3% and 0.5% of cell nuclei at the centre of the brain will be traversed at least once by such a particle within three years, for the three mission scenarios respectively. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Craven, P A AU - Rycroft, M J AD - College of Aeronautics, Cranfield Institute of Technology, UK. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 873 EP - 878 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - Phantoms, Imaging KW - Radiation Dosage KW - Radiation Protection KW - Space Flight KW - Humans KW - Linear Energy Transfer KW - Cell Nucleus -- radiation effects KW - Risk Assessment KW - Brain -- cytology KW - Cosmic Radiation KW - Brain -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77107420?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Fluxes+of+galactic+iron+nuclei+and+associated+HZE+secondaries%2C+and+resulting+radiation+doses%2C+in+the+brain+of+an+astronaut.&rft.au=Craven%2C+P+A%3BRycroft%2C+M+J&rft.aulast=Craven&rft.aufirst=P&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=873&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-30 N1 - Date created - 1997-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The influence of interplanetary shocks on solar protons measured in the stratosphere. AN - 77107381; 11540015 AB - Since the beginning of the 22nd solar cycle twenty solar proton events were observed by the regular balloon measurements of cosmic rays. Temporal changes of intensities and energy spectra of solar protons with energy 100-500 MeV were obtained. The strong influence of interplanetary shock waves on the proton flux characteristics near the Earth was observed. Possible effects of solar proton transport in the vicinity of shock fronts are discussed to explain the observational data. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Bazilevskaya, G A AU - Stozhkov YuI AU - Struminsky, A B AD - P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 717 EP - 720 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - unmanned KW - Balloon Flight KW - Flight Experiment KW - GOES Project KW - Earth (Planet) KW - Astronomical Phenomena KW - Astronomy KW - Solar Activity KW - Extraterrestrial Environment KW - Atmosphere KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77107381?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=The+influence+of+interplanetary+shocks+on+solar+protons+measured+in+the+stratosphere.&rft.au=Bazilevskaya%2C+G+A%3BStozhkov+YuI%3BStruminsky%2C+A+B&rft.aulast=Bazilevskaya&rft.aufirst=G&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=717&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-30 N1 - Date created - 1997-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Near-Earth radiation model deficiencies as seen on CRRES. AN - 77107322; 11540037 AB - The Space Radiation (SPACERAD) experiments on the Combined Release and Radiation Effects Satellite (CRRES) gathered 14 months of radiation particle data in an 18 degrees inclination orbit between 350 km and 36000 km from July 1990 to October 1991. When compared to the NASA radiation belt models AP8 and AE8, the data show the proton model (AP8) does not take into account a second belt formed after major solar flare/shock injection events, and the electron model (AE8) is misleading, at best, in calculating dose in near-Earth orbits. The second proton belt, although softer in energy than the main proton belt, can produce upsets in proton sensitive chips and would produce significant dose in satellites orbiting in it. The MeV electrons observed on CRRES show a significant particle population above 5 MeV (not in the AE8 model) which must be included in any meaningful dose predictions for satellites operating between L-shells of 1.7 and 3.0 RE. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Gussenhoven, M S AU - Mullen, E G AU - Brautigam, D H AD - Phillips Laboratory, PL/GPSP, Hanscom AFB, MA 01731, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 927 EP - 941 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Aluminum KW - CPD4NFA903 KW - Space life sciences KW - CRRES Project KW - unmanned KW - Flight Experiment KW - long duration KW - United States KW - Radiation Dosage KW - Radiometry -- instrumentation KW - Radiation Protection KW - United States National Aeronautics and Space Administration KW - Earth (Planet) KW - Software KW - Electrons KW - Space Flight -- instrumentation KW - Spacecraft -- instrumentation KW - Databases, Factual KW - Radiation Monitoring -- instrumentation KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77107322?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Near-Earth+radiation+model+deficiencies+as+seen+on+CRRES.&rft.au=Gussenhoven%2C+M+S%3BMullen%2C+E+G%3BBrautigam%2C+D+H&rft.aulast=Gussenhoven&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=927&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Results of time-resolved radiation exposure measurements made during U.S. Shuttle missions with a tissue equivalent proportional counter. AN - 77106980; 11540036 AB - Time-resolved radiation exposure measurements inside the crew compartment have been made during recent Shuttle missions with the USAF Radiation Monitoring Equipment-III (RME-III), a portable four-channel tissue equivalent proportional counter. Results from the first six missions are presented and discussed. The missions had orbital inclinations ranging from 28.5 degrees to 57 degrees, and altitudes from 200-600 km. Dose equivalent rates ranged from 40-5300 micro Sv/dy. The RME-III measurements are in good agreement with other dosimetry measurements made aboard the vehicle. Measurements indicate that medium- and high-LET particles contribute less than 2% of the particle fluence for all missions, but up to 50% of the dose equivalent, depending on the spacecraft's altitude and orbital inclination. Iso-dose rate contours have been developed from measurements made during the STS-28 mission. The drift rate of the South Atlantic Anomaly (SAA) is estimated to be 0.49 degrees W/yr and 0.12 degrees N/yr. The calculated trapped proton and Galactic Cosmic Radiation (GCR) dose for the STS-28 mission were significantly lower than the measured values. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Golightly, M J AU - Hardy, A C AU - Hardy, K AD - Lyndon B. Johnson Space Center, NASA, Houston, TX 77058, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 923 EP - 926 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - manned KW - NASA Discipline Radiation Health KW - STS-28 Shuttle Project KW - Flight Experiment KW - NASA Discipline Number 04-10 KW - NASA Center JSC KW - short duration KW - NASA Program Radiation Health KW - STS Shuttle Project KW - Radiation Dosage KW - Radiometry -- instrumentation KW - Linear Energy Transfer KW - Space Flight -- instrumentation KW - Solar Activity KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77106980?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Results+of+time-resolved+radiation+exposure+measurements+made+during+U.S.+Shuttle+missions+with+a+tissue+equivalent+proportional+counter.&rft.au=Golightly%2C+M+J%3BHardy%2C+A+C%3BHardy%2C+K&rft.aulast=Golightly&rft.aufirst=M&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=923&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Geomagnetic cutoffs: a review for space dosimetry applications. AN - 77106109; 11540027 AB - The earth's magnetic field acts as a shield against charged particle radiation from interplanetary space, technically described as the geomagnetic cutoff. The cutoff rigidity problem (except for the dipole special case) has "no solution in closed form". The dipole case yields the Stormer equation which has been repeatedly applied to the earth in hopes of providing useful approximations of cutoff rigidities. Unfortunately the earth's magnetic field has significant deviations from dipole geometry, and the Stormer cutoffs are not adequate for most applications. By application of massive digital computer power it is possible to determine realistic geomagnetic cutoffs derived from high order simulation of the geomagnetic field. Using this technique, "world-grids" of directional cutoffs for the earth's surface and for a limited number of satellite altitudes have been derived. However, this approach is so expensive and time consuming it is impractical for most spacecraft orbits, and approximations must be used. The world grids of cutoff rigidities are extensively used as lookup tables, normalization points and interpolation aids to estimate the effective geomagnetic cutoff rigidity of a specific location in space. We review the various options for estimating the cutoff rigidity for earth-orbiting satellites. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Smart, D F AU - Shea, M A AD - Geophysics Directorate, Phillips Laboratory, Bedford, MA 01731, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 787 EP - 796 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - Extraterrestrial Environment KW - Earth (Planet) KW - Spacecraft KW - Models, Theoretical KW - Mathematics KW - Magnetics KW - Radiometry KW - Cosmic Radiation KW - Space Flight KW - Radiation Monitoring UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77106109?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Geomagnetic+cutoffs%3A+a+review+for+space+dosimetry+applications.&rft.au=Smart%2C+D+F%3BShea%2C+M+A&rft.aulast=Smart&rft.aufirst=D&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=787&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-30 N1 - Date created - 1997-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Experimental simulation of proton space radiation environments: a dosimetric perspective. AN - 77106069; 11540041 AB - Three-dimensional dose calculation techniques developed for radiotherapy treatment planning were used to calculate dose distributions from unidirectional, planar rotational and omnidirectional incident radiation (experimental proton beams and solar flares). The calculations predicted regions of high dose within primate heads exposed to 55-MeV protons, supporting the postulate of radiation-induced brain tumors within this population. Comparisons among predicted doses to the human head from solar flares of three different energies demonstrated differences between unidirectional and omnidirectional irradiation in the space environment. The results can be used to estimate dose distributions based on a) limited phantom measurements, or b) nonuniformly incident radiation in orbit; both situations are difficult to replicate under laboratory exposure conditions. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Hardy, K A AU - Leavitt, D D AD - AL/OEBSD, USAF Armstrong Laboratory, Brooks AFB, TX 78235-5000, USA. Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 959 EP - 967 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - Phantoms, Imaging KW - Radiation Dosage KW - Animals KW - Radiometry -- instrumentation KW - Humans KW - Brain -- radiation effects KW - Tomography, X-Ray Computed KW - Neoplasms, Radiation-Induced KW - Radiotherapy KW - Eye -- radiation effects KW - Computer Simulation KW - Solar Activity KW - Models, Biological UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77106069?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Experimental+simulation+of+proton+space+radiation+environments%3A+a+dosimetric+perspective.&rft.au=Hardy%2C+K+A%3BLeavitt%2C+D+D&rft.aulast=Hardy&rft.aufirst=K&rft.date=1994-10-01&rft.volume=14&rft.issue=10&rft.spage=959&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-28 N1 - Date created - 1997-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - AVHRR data sets for determination of desert spatial extent AN - 51278827; 2008-034602 JF - International Journal of Remote Sensing AU - Tucker, C J AU - Newcomb, W W AU - Dregne, H E Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 3547 EP - 3565 PB - Taylor & Francis, London VL - 15 IS - 15 SN - 0143-1161, 0143-1161 KW - terrestrial environment KW - GIMMS KW - semi-arid environment KW - geophysical methods KW - satellite methods KW - climate change KW - AVHRR KW - infrared methods KW - Global Inventory Mapping and Monitoring KW - Africa KW - Sahara KW - Sahel KW - remote sensing KW - airborne methods KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51278827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Remote+Sensing&rft.atitle=AVHRR+data+sets+for+determination+of+desert+spatial+extent&rft.au=Tucker%2C+C+J%3BNewcomb%2C+W+W%3BDregne%2C+H+E&rft.aulast=Tucker&rft.aufirst=C&rft.date=1994-10-01&rft.volume=15&rft.issue=15&rft.spage=3547&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - 42 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Africa; airborne methods; AVHRR; climate change; geophysical methods; GIMMS; Global Inventory Mapping and Monitoring; infrared methods; remote sensing; Sahara; Sahel; satellite methods; semi-arid environment; terrestrial environment ER - TY - JOUR T1 - Ground truth for oblique impact processes; new insight from the Rio Cuarto, Argentina, crater field AN - 50212839; 1994-049138 AB - New evidence for an impact origin of oblong rimmed depressions near Rio Cuarto, Cordoba Province, Argentina, includes shocked silicate phases (e.g., diaplectic glass), thermal decomposition of high-temperature mineral clasts (e.g., baddeleyite from zircon), rapid quenching, very low water contents (< or =0.1 wt%), and generation of identical glasses in hypervelocity laboratory impact experiments. The results indicate that glasses with a wide range in major element concentrations can form from a single target type in a relatively small impact event. Impact glasses with the greatest volatile loss typically exhibit the greatest meteoritic contamination (as defined by Cr, Ni, and Ir abundances). The different impact glass types and the different degrees of impactor contamination are proposed to reflect proximity to the projectile-target interface during shallow penetration in an oblique impact, consistent with laboratory simulations and planetary analogues. JF - Geology (Boulder) AU - Schultz, Peter H AU - Koeberl, Christian AU - Bunch, Theodore AU - Grant, John AU - Collins, William Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 889 EP - 892 PB - Geological Society of America (GSA), Boulder, CO VL - 22 IS - 10 SN - 0091-7613, 0091-7613 KW - experimental studies KW - volcanic rocks KW - glasses KW - thermal alteration KW - igneous rocks KW - impacts KW - Cordoba Argentina KW - metamorphism KW - Rio Cuarto Argentina KW - volatiles KW - South America KW - major elements KW - ground truth KW - craters KW - Argentina KW - depressions KW - petrography KW - thermal effects KW - geochemistry KW - shock metamorphism KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50212839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ground+truth+for+oblique+impact+processes%3B+new+insight+from+the+Rio+Cuarto%2C+Argentina%2C+crater+field&rft.au=Schultz%2C+Peter+H%3BKoeberl%2C+Christian%3BBunch%2C+Theodore%3BGrant%2C+John%3BCollins%2C+William&rft.aulast=Schultz&rft.aufirst=Peter&rft.date=1994-10-01&rft.volume=22&rft.issue=10&rft.spage=889&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281994%290222.3.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 - 1994-01-01 N1 - Number of references - 22 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Argentina; Cordoba Argentina; craters; depressions; experimental studies; geochemistry; glasses; ground truth; igneous rocks; impacts; major elements; metamorphism; petrography; Rio Cuarto Argentina; shock metamorphism; South America; thermal alteration; thermal effects; volatiles; volcanic rocks DO - http://dx.doi.org/10.1130/0091-7613(1994)022<0889:GTFOIP>2.3.CO;2 ER - TY - JOUR T1 - Determination of the flux and energy distribution of energetic solar protons in the past 2 Myr using lunar rock 68815 AN - 50212485; 1994-052280 AB - Analyses are presented of cosmogenic (super 21) Ne, (super 22) Ne, (super 38) Ar and (super 3) He in 11 depth samples of lunar rock 68815; concentrations of these proton-produced solar cosmic ray (SCR) nuclides decrease smoothly from the surface to 4.3 cm where a galactic cosmic ray (GCR) component predominates. The average proton flux over the past 2 m.y. was most likely 60-80 p/cm (super 2) /s and possibly 50-100 p/cm (super 2) /s. Differences in the energetic solar proton flux measured by different SCR nuclides may be errors in cross-section data. JF - Geochimica et Cosmochimica Acta AU - Rao, M N AU - Garrison, D H AU - Bogard, D D AU - Reedy, R C Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 4231 EP - 4245 PB - Pergamon, Oxford VL - 58 IS - 19 SN - 0016-7037, 0016-7037 KW - Ne-21 KW - Ne-22 KW - Moon KW - isotopes KW - He-3 KW - protons KW - Ar-38 KW - manganese KW - krypton KW - stable isotopes KW - argon KW - Mn-53 KW - Kr-81 KW - lunar samples KW - radioactive isotopes KW - noble gases KW - neon KW - metals KW - carbon KW - helium KW - C-14 KW - solar activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50212485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Determination+of+the+flux+and+energy+distribution+of+energetic+solar+protons+in+the+past+2+Myr+using+lunar+rock+68815&rft.au=Rao%2C+M+N%3BGarrison%2C+D+H%3BBogard%2C+D+D%3BReedy%2C+R+C&rft.aulast=Rao&rft.aufirst=M&rft.date=1994-10-01&rft.volume=58&rft.issue=19&rft.spage=4231&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990275-5 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 - 1994-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Ar-38; argon; C-14; carbon; He-3; helium; isotopes; Kr-81; krypton; lunar samples; manganese; metals; Mn-53; Moon; Ne-21; Ne-22; neon; noble gases; protons; radioactive isotopes; solar activity; stable isotopes DO - http://dx.doi.org/10.1016/0016-7037(94)90275-5 ER - TY - JOUR T1 - Carbonaceous components in the Comet Halley dust AN - 50196065; 1995-003469 AB - On-board analyses by MS on the spacecraft GIOTTO and VEGA in 1986 on fly-by missions to comet Halley, identified substantial C probably bonded to H, O and N in complex organic compounds, in the cometary dust. These cometary grains are classified by cluster analysis. Grains containing organic material were relatively more abundant near the nucleus than in the outer parts of the coma indicating decomposition in the coma environment. Pure C grains, hydrocarbons and polymers of cyanopolyynes and multi-C monoxides occur in the dust as compositionally simple and distinctive components. The preservation of different types of dust particles is evidence of the unequilibrated nature of comet Halley material and incomplete mixing of precursor material at the submicron level. The complex organic compounds indicate that relatively unaltered interstellar dust occurs in comets. The comet apparently inherited material from a protosolar molecular cloud in which organic material was produced in different domains or had different histories, or both. JF - Geochimica et Cosmochimica Acta AU - Fomenkova, M N AU - Chang, S AU - Mukhin, L M Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 4503 EP - 4512 PB - Pergamon, Oxford VL - 58 IS - 20 SN - 0016-7037, 0016-7037 KW - organic materials KW - carbonaceous composition KW - clastic sediments KW - statistical analysis KW - cluster analysis KW - organic compounds KW - cosmic dust KW - comets KW - Halley's Comet KW - carbon KW - dust KW - sediments KW - VEGA KW - GIOTTO KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50196065?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Carbonaceous+components+in+the+Comet+Halley+dust&rft.au=Fomenkova%2C+M+N%3BChang%2C+S%3BMukhin%2C+L+M&rft.aulast=Fomenkova&rft.aufirst=M&rft.date=1994-10-01&rft.volume=58&rft.issue=20&rft.spage=4503&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990351-4 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 - 1995-01-01 N1 - Number of references - 87 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - carbon; carbonaceous composition; clastic sediments; cluster analysis; comets; cosmic dust; dust; GIOTTO; Halley's Comet; organic compounds; organic materials; sediments; statistical analysis; VEGA DO - http://dx.doi.org/10.1016/0016-7037(94)90351-4 ER - TY - JOUR T1 - Bell Regio, Venus; integration of remote sensing data and terrestrial analogs for geologic analysis AN - 50165299; 1997-020168 AB - The geology and surface morphology of Bell Regio (18-42 degrees N, 32-58 degrees E) are investigated using a combination of Magellan, Venera, and analogous terrestrial data. The properties of surface units are compared to either direct terrestrial analog measurements or to the behaviors predicted by theoretical models. Five major volcanic sources are identified from geologic mapping (Tepev Mons, Nefertiti corona, a large shield volcano east of Tepev, and two small edifices southeast of Tepev). The volcano Api Mons lies northeast of the main Bell uplift. The oldest volcanic units are associated with an extensive low shield volcano east of Tepev Mons and a small edifice southeast of Tepev. The annular flow apron of Tepev Mons formed next, with volcanism at a second small edifice on the southeast flank of Tepev Mons producing the youngest flow units. Comparisons between Magellan data, terrrestrial radar images, and field topography profiles suggest that only three units resemble terrestrial a'a flows; the remainder are consistent with smoother pahoehoe-type surfaces. This suggests that most of the flow units were erupted at relatively low volume effusion rates (<100 m (super 3) /s) over long periods of time or had very low viscosities. One flow unit has a knobby texture which resembles large tumuli or ridge structures. Much of the tectonic deformation in the area is in the form of fractures circumferential to the edifices and isolated blocks of tessera terrain; there are no rift zones such as those which occur at Beta Regio, Atla Regio, or Western Eistla Regio. Tepev Mons is characterized by very steep slopes (up to 40 degrees along the east flank), a relatively flat summit, and two large (11 and 31 km) calderas. Though covered in places by high-dielectric material, the Tepev Mons summit area is relatively smooth with the exception of annular rough deposits which ring the two calderas. These calderas are quite shallow (on the order of a few hundred meters at most), with no discernible difference in radius between individual altimeter footprints inside and outside the larger eastern feature. Magellan and Venera data suggest that the eastern caldera is covered by a layer of unconsolidated material. Ejecta from Miriam crater has produced a halo with a dielectric constant of 6-7 surrounding Nefertiti corona, and Potanina crater ejecta is the likely source material for radar-dark wind streaks south of Tepev Mons. A low-dielectric (epsilon =2-3) triangular region on the south flank of Tepev Mons may be a pyroclastic or crater ejecta deposit which has been spread westward by the wind. This region has undergone a wide variety of volcanic processes, with a major shift in eruptive style from the older low-relief eastern volcanic center to the steep slopes and large summit calderas characteristic of Tepev Mons and the two smaller edifices. Copyright 1994 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Campbell, Bruce A AU - Rogers, Patricia G Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 21 EP - 21,171 PB - American Geophysical Union, Washington, DC VL - 99 IS - E10 SN - 0148-0227, 0148-0227 KW - imagery KW - Venera Program KW - volcanic rocks KW - Magellan Program KW - igneous rocks KW - Venus KW - Tepev Mons KW - volcanism KW - pahoehoe KW - Api Mons KW - lava flows KW - radar methods KW - Bell Regio KW - rates KW - ejecta KW - terrestrial planets KW - morphology KW - planets KW - lava KW - eruptions KW - Nefertiti Corona KW - volcanoes KW - terrestrial comparison KW - aa lava KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50165299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Bell+Regio%2C+Venus%3B+integration+of+remote+sensing+data+and+terrestrial+analogs+for+geologic+analysis&rft.au=Campbell%2C+Bruce+A%3BRogers%2C+Patricia+G&rft.aulast=Campbell&rft.aufirst=Bruce&rft.date=1994-10-01&rft.volume=99&rft.issue=E10&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JE01862 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 12 plates, 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aa lava; Api Mons; Bell Regio; ejecta; eruptions; igneous rocks; imagery; lava; lava flows; Magellan Program; morphology; Nefertiti Corona; pahoehoe; planets; radar methods; rates; remote sensing; Tepev Mons; terrestrial comparison; terrestrial planets; Venera Program; Venus; volcanic rocks; volcanism; volcanoes DO - http://dx.doi.org/10.1029/94JE01862 ER - TY - JOUR T1 - A ceramic/slag interface as an analog for accretion of hot refractory objects and rim formation AN - 50115623; 1995-054686 JF - LPI Contribution AU - Paque, J M AU - Bunch, T E AU - Hewin, R H Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 31 PB - Lunar and Planetary Institute, Houston, TX VL - 844 SN - 0161-5297, 0161-5297 KW - meteorites KW - mineral composition KW - accretion KW - stony meteorites KW - inclusions KW - calcium-aluminum inclusions KW - carbonaceous chondrites KW - chondrites KW - ceramic materials KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50115623?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=A+ceramic%2Fslag+interface+as+an+analog+for+accretion+of+hot+refractory+objects+and+rim+formation&rft.au=Paque%2C+J+M%3BBunch%2C+T+E%3BHewin%2C+R+H&rft.aulast=Paque&rft.aufirst=J&rft.date=1994-10-01&rft.volume=844&rft.issue=&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Chondrules and the protoplanetary disk N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - accretion; calcium-aluminum inclusions; carbonaceous chondrites; ceramic materials; chondrites; inclusions; meteorites; mineral composition; stony meteorites ER - TY - JOUR T1 - Overview of nebula models; potential chondrule-forming environments AN - 50114768; 1995-054658 JF - LPI Contribution AU - Cassen, P AU - Hewin, R H Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 4 EP - 5 PB - Lunar and Planetary Institute, Houston, TX VL - 844 SN - 0161-5297, 0161-5297 KW - solar nebula KW - models KW - genesis KW - meteorites KW - chondrules KW - cooling KW - interpretation KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50114768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Overview+of+nebula+models%3B+potential+chondrule-forming+environments&rft.au=Cassen%2C+P%3BHewin%2C+R+H&rft.aulast=Cassen&rft.aufirst=P&rft.date=1994-10-01&rft.volume=844&rft.issue=&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Chondrules and the protoplanetary disk N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - chondrules; cooling; genesis; interpretation; meteorites; models; solar nebula ER - TY - JOUR T1 - Experimental constraints on models for the origin of chondrules; cooling rates AN - 50113862; 1995-054675 JF - LPI Contribution AU - Lofgren, G E AU - Hewin, R H Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 19 EP - 20 PB - Lunar and Planetary Institute, Houston, TX VL - 844 SN - 0161-5297, 0161-5297 KW - models KW - genesis KW - meteorites KW - experimental studies KW - mineral composition KW - chondrules KW - cooling KW - crystallization KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50113862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Experimental+constraints+on+models+for+the+origin+of+chondrules%3B+cooling+rates&rft.au=Lofgren%2C+G+E%3BHewin%2C+R+H&rft.aulast=Lofgren&rft.aufirst=G&rft.date=1994-10-01&rft.volume=844&rft.issue=&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Chondrules and the protoplanetary disk N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - chondrules; cooling; crystallization; experimental studies; genesis; meteorites; mineral composition; models ER - TY - JOUR T1 - Turbulent diffusion and concentration of "chondrules" in the protoplanetary nebula AN - 50109680; 1995-054660 JF - LPI Contribution AU - Cuzzi, J N AU - Dobrovolskis, A R AU - Hogan, R C AU - Hewin, R H Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 6 EP - 7 PB - Lunar and Planetary Institute, Houston, TX VL - 844 SN - 0161-5297, 0161-5297 KW - solar nebula KW - meteorites KW - experimental studies KW - diffusion KW - accretion KW - chondrules KW - equations KW - turbulence KW - interpretation KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50109680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Turbulent+diffusion+and+concentration+of+%22chondrules%22+in+the+protoplanetary+nebula&rft.au=Cuzzi%2C+J+N%3BDobrovolskis%2C+A+R%3BHogan%2C+R+C%3BHewin%2C+R+H&rft.aulast=Cuzzi&rft.aufirst=J&rft.date=1994-10-01&rft.volume=844&rft.issue=&rft.spage=6&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Chondrules and the protoplanetary disk N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - accretion; chondrules; diffusion; equations; experimental studies; interpretation; meteorites; solar nebula; turbulence ER - TY - JOUR T1 - Mn-Cr isotopic systematics of Chainpur chondrules and bulk ordinary chondrites AN - 50109279; 1995-054684 JF - LPI Contribution AU - Nyquist, L AU - Lindstrom, D AU - Wiesmann, H AU - Bansal, B AU - Shih, C Y AU - Mittlefehldt, D AU - Martinez, R AU - Wentworth, S AU - Hewin, R H Y1 - 1994/10// PY - 1994 DA - October 1994 SP - 28 EP - 30 PB - Lunar and Planetary Institute, Houston, TX VL - 844 SN - 0161-5297, 0161-5297 KW - silicates KW - ordinary chondrites KW - stony meteorites KW - isotopes KW - Chainpur Meteorite KW - isotope ratios KW - Mn-55/Cr-52 KW - LL chondrites KW - olivine group KW - manganese KW - stable isotopes KW - Mn-55/Mn-53 KW - nesosilicates KW - meteorites KW - pyroxene group KW - mineral composition KW - Cr-53/Cr-52 KW - metals KW - chondrules KW - orthosilicates KW - chondrites KW - chromium KW - chain silicates KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50109279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mn-Cr+isotopic+systematics+of+Chainpur+chondrules+and+bulk+ordinary+chondrites&rft.au=Nyquist%2C+L%3BLindstrom%2C+D%3BWiesmann%2C+H%3BBansal%2C+B%3BShih%2C+C+Y%3BMittlefehldt%2C+D%3BMartinez%2C+R%3BWentworth%2C+S%3BHewin%2C+R+H&rft.aulast=Nyquist&rft.aufirst=L&rft.date=1994-10-01&rft.volume=844&rft.issue=&rft.spage=28&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Chondrules and the protoplanetary disk N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - chain silicates; Chainpur Meteorite; chondrites; chondrules; chromium; Cr-53/Cr-52; isotope ratios; isotopes; LL chondrites; manganese; metals; meteorites; mineral composition; Mn-55/Cr-52; Mn-55/Mn-53; nesosilicates; olivine group; ordinary chondrites; orthosilicates; pyroxene group; silicates; stable isotopes; stony meteorites ER - TY - JOUR T1 - Pyrolysis-gas chromatography/mass spectrometry analyses of biological particulates collected during recent space shuttle missions. AN - 77110825; 11536649 AB - Biological particulates collected on air filters during shuttle missions (STS-40 and STS-42) were identified using pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). A method was developed for identifying the atmospheric particles and their sources through the analysis of standard materials and the selection of "marker" compounds specific to the particle type. Pyrolysis spectra of biological standards were compared with those of airborne particles collected during two space shuttle missions; marker compounds present in the shuttle particle spectra were matched with those of the standards to identify the source of particles. Particles of 0,5--1-mm diameter and weighing as little as 40 micrograms could be identified using this technique. The Py-GC/MS method identified rat food and soilless plant-growth media as two sources of particles collected from the shuttle atmosphere during flight. JF - Analytical chemistry AU - Matney, M L AU - Limero, T F AU - James, J T AD - KRUG Life Sciences Inc., Houston, Texas 77058, USA. Y1 - 1994/09/15/ PY - 1994 DA - 1994 Sep 15 SP - 2820 EP - 2828 VL - 66 IS - 18 SN - 0003-2700, 0003-2700 KW - Air Pollutants KW - 0 KW - Culture Media KW - Space life sciences KW - manned KW - NASA Program Flight KW - NASA Program Environmental Health KW - Flight Experiment KW - NASA Discipline Number 00-00 KW - NASA Discipline Number 04-10 KW - NASA Center JSC KW - STS-42 Shuttle Project KW - short duration KW - STS-40 Shuttle Project KW - NASA Discipline Environmental Health KW - Rats KW - Evaluation Studies as Topic KW - Hot Temperature KW - Animals KW - Rats, Sprague-Dawley KW - Reproducibility of Results KW - Particle Size KW - Reference Standards KW - Animal Feed -- analysis KW - Culture Media -- analysis KW - Feces KW - Air Pollution, Indoor -- analysis KW - Gas Chromatography-Mass Spectrometry -- methods KW - Space Flight -- instrumentation KW - Gas Chromatography-Mass Spectrometry -- instrumentation KW - Air Pollutants -- analysis KW - Weightlessness UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+chemistry&rft.atitle=Pyrolysis-gas+chromatography%2Fmass+spectrometry+analyses+of+biological+particulates+collected+during+recent+space+shuttle+missions.&rft.au=Matney%2C+M+L%3BLimero%2C+T+F%3BJames%2C+J+T&rft.aulast=Matney&rft.aufirst=M&rft.date=1994-09-15&rft.volume=66&rft.issue=18&rft.spage=2820&rft.isbn=&rft.btitle=&rft.title=Analytical+chemistry&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-05-31 N1 - Date created - 1997-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Full-wave and half-wave rectification in second-order motion perception. AN - 85256098; pmid-7941419 AB - Microbalanced stimuli are dynamic displays which do not stimulate motion mechanisms that apply standard (Fourier-energy or autocorrelational) motion analysis directly to the visual signal. In order to extract motion information from microbalanced stimuli, Chubb and Sperling [(1988) Journal of the Optical Society of America, 5, 1986-2006] proposed that the human visual system performs a rectifying transformation on the visual signal prior to standard motion analysis. The current research employs two novel types of microbalanced stimuli: half-wave stimuli preserve motion information following half-wave rectification (with a threshold) but lose motion information following full-wave rectification; full-wave stimuli preserve motion information following full-wave rectification but lose motion information following half-wave rectification. Additionally, Fourier stimuli, ordinary square-wave gratings, were used to stimulate standard motion mechanisms. Psychometric functions (direction discrimination vs stimulus contrast) were obtained for each type of stimulus when presented alone, and when masked by each of the other stimuli (presented as moving masks and also as nonmoving, counterphase-flickering masks). RESULTS: given sufficient contrast, all three types of stimulus convey motion. However, only one-third of the population can perceive the motion of the half-wave stimulus. Observers are able to process the motion information contained in the Fourier stimulus slightly more efficiently than the information in the full-wave stimulus but are much less efficient in processing half-wave motion information. Moving masks are more effective than counterphase masks at hampering direction discrimination, indicating that some of the masking effect is interference between motion mechanisms, and some occurs at earlier stages. When either full-wave and Fourier or half-wave and Fourier gratings are presented simultaneously, there is a wide range of relative contrasts within which the motion directions of both gratings are easily determinable. Conversely, when half-wave and full-wave gratings are combined, the direction of only one of these gratings can be determined with high accuracy. CONCLUSIONS: the results indicate that three motion computations are carried out, any two in parallel: one standard ("first order") and two non-Fourier ("second-order") computations that employ full-wave and half-wave rectification. JF - Vision Research AU - Solomon, J A AU - Sperling, G AD - NASA-Ames Research Ctr, Moffet Field, CA 94035. PY - 1994 SP - 2239 EP - 2257 VL - 34 IS - 17 SN - 0042-6989, 0042-6989 KW - Contrast Sensitivity KW - Discrimination (Psychology) KW - Human KW - Pattern Recognition, Visual KW - Support, U.S. Gov't, Non-P.H.S. KW - Psychophysics KW - Perceptual Masking KW - Male KW - Motion Perception KW - Sensory Thresholds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85256098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vision+Research&rft.atitle=Full-wave+and+half-wave+rectification+in+second-order+motion+perception.&rft.au=Solomon%2C+J+A%3BSperling%2C+G&rft.aulast=Solomon&rft.aufirst=J&rft.date=1994-09-01&rft.volume=34&rft.issue=17&rft.spage=2239&rft.isbn=&rft.btitle=&rft.title=Vision+Research&rft.issn=00426989&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - The molecular emission-line spectrum of IRC +10216 between 330 and 358 GHz. AN - 77114785; 11539132 AB - We have conducted a spectral line survey of IRC +10216 using the Caltech Submillimeter Observatory to an average sensitivity of < or approximately 95 mK. A deconvolution algorithm has been used to derive the continuous single-sideband spectrum from 330.2 to 358.1 GHz. A total of 56 spectral lines were detected of which 54 have been identified with 8 molecules and a total of 18 isotopomers. The observed lines are used to derive column densities and relative abundances for the detected species. Within this frequency range the spectral lines detected contribute the majority of the total flux emitted by IRC +10216. We use the derived column densities and excitation temperatures to simulate the molecular line emission (assuming LTE) at frequencies up to 1000 GHz. The observed and simulated flux from line emission is compared to broadband total flux measurements and to dust emission assuming a power-law variation of the dust emissivity. We conclude that significant corrections for the line flux must be made to broadband flux measurements of IRC +10216 at wavelengths longer than approximately 750 micrometers. JF - The Astrophysical journal. Supplement series AU - Groesbeck, T D AU - Phillips, T G AU - Blake, G A AD - Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena 91125, USA. Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 147 EP - 162 VL - 94 IS - 1 SN - 0067-0049, 0067-0049 KW - Silicon Compounds KW - 0 KW - Hydrogen Cyanide KW - 2WTB3V159F KW - Carbon KW - 7440-44-0 KW - Carbon Monoxide KW - 7U1EE4V452 KW - Space life sciences KW - Spectrum Analysis KW - Hydrogen Cyanide -- chemistry KW - Silicon Compounds -- chemistry KW - Carbon -- chemistry KW - Carbon Monoxide -- chemistry KW - Extraterrestrial Environment KW - Astronomy -- methods KW - Algorithms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77114785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+journal.+Supplement+series&rft.atitle=The+molecular+emission-line+spectrum+of+IRC+%2B10216+between+330+and+358+GHz.&rft.au=Groesbeck%2C+T+D%3BPhillips%2C+T+G%3BBlake%2C+G+A&rft.aulast=Groesbeck&rft.aufirst=T&rft.date=1994-09-01&rft.volume=94&rft.issue=1&rft.spage=147&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+journal.+Supplement+series&rft.issn=00670049&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-01-30 N1 - Date created - 1997-01-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Life-span of irradiated mammals. Mathematical modelling. AN - 77113758; 11540595 AB - A mathematical model of the mortality dynamics of irradiated mammals is developed. It relates the statistical biometrical functions with the statistical and kinetical characteristics of the critical systems in the organism. This model can be used for predicting the life shortening of irradiated mammals. JF - Acta astronautica AU - Kovalev, E E AU - Smirnova, O A AD - Research Center of Spacecraft Radiation Safety, Moscow, Russia. Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 649 EP - 652 VL - 32 IS - 9 SN - 0094-5765, 0094-5765 KW - Space life sciences KW - Radiation Dosage KW - Animals KW - Hematopoiesis -- radiation effects KW - Space Flight KW - Stochastic Processes KW - Mice KW - Dose-Response Relationship, Radiation KW - Mathematics KW - Radiation Injuries, Experimental -- mortality KW - Models, Statistical KW - Longevity KW - Radiation, Ionizing KW - Hematopoietic System -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113758?accountid=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=Acta+astronautica&rft.atitle=Life-span+of+irradiated+mammals.+Mathematical+modelling.&rft.au=Kovalev%2C+E+E%3BSmirnova%2C+O+A&rft.aulast=Kovalev&rft.aufirst=E&rft.date=1994-09-01&rft.volume=32&rft.issue=9&rft.spage=649&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-07-09 N1 - Date created - 1998-07-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Hyperresponsiveness of cardiac muscles to histamine in reserpine-treated guinea pigs. AN - 76949307; 7830330 AB - The hyperresponsiveness of cardiac tissue to histamine following treatment with reserpine was pharmacologically characterized. Guinea pig hearts were isolated 24 hours after intraperitoneal administration of 5 mg/kg reserpine. This treatment resulted in a complete depletion of tissue norepinephrine. Reserpine treatment potentiated the positive inotropic response of isolated perfused hearts to histamine at doses ranging from 0.3 to 3 micrograms (23 to 57% increase for reserpine-treated animals vs. 14 to 32% increase for control animals). Isolated left ventricular papillary muscle of reserpine-treated guinea pig hearts also showed hyperresponsiveness to histamine at concentrations of 0.1 microM or greater. The hyperresponsiveness of the papillary muscle contraction of the reserpine-treated animals to histamine was abolished in the presence of 1 microM cimetidine, but not attenuated in the presence of 1 microM diphenhydramine. This hyperresponsiveness was not modified by 1 microM bunazosin or 1 microM propranolol. The results suggest that H2-receptor mediated action plays a role in the hyperresponsiveness of cardiac muscles to histamine. JF - Japanese heart journal AU - Okazaki, N AU - Tanonaka, K AU - Nasa, Y AU - Takagi, N AU - Yamasaki, T AU - Yoshida, S AU - Takeo, S AD - Department of Pharmacology, Tokyo College of Pharmacy, Hachioji, Japan. Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 661 EP - 671 VL - 35 IS - 5 SN - 0021-4868, 0021-4868 KW - Receptors, Histamine KW - 0 KW - Histamine KW - 820484N8I3 KW - Reserpine KW - 8B1QWR724A KW - Norepinephrine KW - X4W3ENH1CV KW - Index Medicus KW - Animals KW - Heart Rate -- drug effects KW - Down-Regulation KW - Guinea Pigs KW - Norepinephrine -- metabolism KW - Receptors, Histamine -- drug effects KW - In Vitro Techniques KW - Drug Synergism KW - Myocardium -- metabolism KW - Male KW - Female KW - Reserpine -- pharmacology KW - Histamine -- pharmacology KW - Myocardial Contraction -- drug effects KW - Papillary Muscles -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76949307?accountid=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=Japanese+heart+journal&rft.atitle=Hyperresponsiveness+of+cardiac+muscles+to+histamine+in+reserpine-treated+guinea+pigs.&rft.au=Okazaki%2C+N%3BTanonaka%2C+K%3BNasa%2C+Y%3BTakagi%2C+N%3BYamasaki%2C+T%3BYoshida%2C+S%3BTakeo%2C+S&rft.aulast=Okazaki&rft.aufirst=N&rft.date=1994-09-01&rft.volume=35&rft.issue=5&rft.spage=661&rft.isbn=&rft.btitle=&rft.title=Japanese+heart+journal&rft.issn=00214868&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-02-22 N1 - Date created - 1995-02-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Volatile organic contaminants found in the habitable environment of the Space Shuttle: STS-26 to STS-55. AN - 76933578; 7818456 AB - The health and performance of spacecraft crews can be adversely affected by contaminants present in the respirable air. Contaminants originate from hardware offgassing, crew and microbial metabolism, use of utility chemicals, leakage from fluid systems and payload experiments, and from electrical overheating. The quality of Shuttle air is measured by collecting contaminants in evacuated cylinders or on sorbent resin for later ground-based analysis by gas chromatography (GC) and GC mass spectrometry (MS). The results of those analyses are presented for 28 missions, including 5 Spacelabs which were flown in the payload bay of the Shuttle. The major contaminants were relatively nontoxic alcohols (ethanol, isopropanol), ketones (acetone, diacetone alcohol), alkanes, halocarbons (Halon 1301, Freon 113), and siloxanes. Occasionally, more toxic contaminants, such as methanol, acetaldehyde, and tetrachloroethene, were present at low concentrations (below 1 mg/m3). The contaminant concentrations measured in spacecraft air were compared to spacecraft maximum allowable concentrations (SMAC's) which are set to protect the crew from adverse health effects or performance decrements. Aggregate toxicity assessments (T values) of the contaminants present during each mission, calculated by summing the ratios of measured concentrations to each contaminant's SMAC, showed that air quality consistent met the criterion that the T value be less than 1. JF - Aviation, space, and environmental medicine AU - James, J T AU - Limero, T F AU - Leano, H J AU - Boyd, J F AU - Covington, P A AD - Biomedical Operations and Research Branch, NASA/Johnson Space Center, Houston, TX 77058. Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 851 EP - 857 VL - 65 IS - 9 SN - 0095-6562, 0095-6562 KW - Alcohols KW - 0 KW - Alkanes KW - Ketones KW - Index Medicus KW - Space life sciences KW - Alcohols -- analysis KW - Chromatography, Gas KW - Maximum Allowable Concentration KW - Ketones -- analysis KW - Volatilization KW - Alkanes -- analysis KW - Air Pollution, Indoor -- analysis KW - Space Flight KW - Spacecraft UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76933578?accountid=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=Aviation%2C+space%2C+and+environmental+medicine&rft.atitle=Volatile+organic+contaminants+found+in+the+habitable+environment+of+the+Space+Shuttle%3A+STS-26+to+STS-55.&rft.au=James%2C+J+T%3BLimero%2C+T+F%3BLeano%2C+H+J%3BBoyd%2C+J+F%3BCovington%2C+P+A&rft.aulast=James&rft.aufirst=J&rft.date=1994-09-01&rft.volume=65&rft.issue=9&rft.spage=851&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+space%2C+and+environmental+medicine&rft.issn=00956562&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-02-03 N1 - Date created - 1995-02-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Computerized in vitro test for chemical toxicity based on Tetrahymena swimming patterns. AN - 76802158; 7953473 AB - An apparatus and a method for rapidly determining chemical toxicity have been evaluated as an alternative to the rabbit eye initancy test (Draize). The toxicity monitor includes an automated scoring of how motile biological cells (Tetrahymena pyriformis) slow down or otherwise change their swimming patterns in a hostile chemical environment. The method, called the Motility Assay (MA), is tested for 30 s to determine the chemical toxicity in 20 aqueous samples containing trace organics and salts. With equal or better detection limits, results compare favorably to in vivo animal tests of eye irritancy. JF - Chemosphere AU - Noever, D A AU - Matsos, H C AU - Cronise, R J AU - Looger, L L AU - Relwani, R A AU - Johnson, J U AD - NASA Marshall Space Flight Center, Huntsville, AL 35812. Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 1373 EP - 1384 VL - 29 IS - 6 SN - 0045-6535, 0045-6535 KW - Irritants KW - 0 KW - Water Pollutants, Chemical KW - Index Medicus KW - Space life sciences KW - Animals KW - Cell Movement -- drug effects KW - Rabbits KW - Eye -- drug effects KW - Animal Testing Alternatives KW - Water Pollutants, Chemical -- toxicity KW - Irritants -- toxicity KW - Toxicity Tests KW - Tetrahymena pyriformis -- physiology KW - Tetrahymena pyriformis -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76802158?accountid=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=Chemosphere&rft.atitle=Computerized+in+vitro+test+for+chemical+toxicity+based+on+Tetrahymena+swimming+patterns.&rft.au=Noever%2C+D+A%3BMatsos%2C+H+C%3BCronise%2C+R+J%3BLooger%2C+L+L%3BRelwani%2C+R+A%3BJohnson%2C+J+U&rft.aulast=Noever&rft.aufirst=D&rft.date=1994-09-01&rft.volume=29&rft.issue=6&rft.spage=1373&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1994-12-21 N1 - Date created - 1994-12-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Measurements on the shuttle of the LET spectra of galactic cosmic radiation and comparison with the radiation transport model. AN - 76677333; 8073117 AB - A new class of tissue-equivalent proportional counters has been flown on two space shuttle flights. These detectors and their associated electronics cover a lineal energy range from 0.4 to 1250 keV/microns with a multichannel analyzer resolution of 0.1 keV/microns from 0.4 to 20 keV/microns and 5 keV/microns from 20 to 1250 keV/microns. These detectors provide the most complete dynamic range and highest resolution of any technique currently in use. On one mission, one detector was mounted in the Shuttle payload bay and another older model in the mid-deck, thus providing information on the depth dependence of the lineal energy spectrum. A detailed comparison of the observed lineal energy and calculated LET spectra for galactic cosmic radiation shows that, although the radiation transport models provide a rather accurate description of the dose (+/- 15%) and equivalent dose (+/- 15%), the calculations significantly underestimate the frequency of events below about 100 keV/microns. This difference cannot be explained by the inclusion of the contribution of splash protons. The contribution of the secondary pions, kaons and electrons produced in the Shuttle shielding, if included in the radiation transport model, may explain these differences. There are also significant differences between the model predictions and observations above 140 keV/microns, particularly for 28.5 degrees inclination orbit. JF - Radiation research AU - Badhwar, G D AU - Cucinotta, F A AU - Braby, L A AU - Konradi, A AD - NASA Johnson Space Center, Houston, Texas 77058-3696. Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 344 EP - 351 VL - 139 IS - 3 SN - 0033-7587, 0033-7587 KW - Index Medicus KW - Space life sciences KW - manned KW - NASA Discipline Radiation Health KW - Flight Experiment KW - NASA Center JSC KW - short duration KW - STS-56 Shuttle Project KW - STS-51 Shuttle Project KW - Energy Transfer KW - Radiation Monitoring KW - Radiometry -- instrumentation KW - Cosmic Radiation KW - Aerospace Medicine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76677333?accountid=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=Measurements+on+the+shuttle+of+the+LET+spectra+of+galactic+cosmic+radiation+and+comparison+with+the+radiation+transport+model.&rft.au=Badhwar%2C+G+D%3BCucinotta%2C+F+A%3BBraby%2C+L+A%3BKonradi%2C+A&rft.aulast=Badhwar&rft.aufirst=G&rft.date=1994-09-01&rft.volume=139&rft.issue=3&rft.spage=344&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 - 1994-09-27 N1 - Date created - 1994-09-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - GEN T1 - Exploring the Moon: A Teacher's Guide with Activities for Earth and Space Sciences. AN - 62632907; ED390711 AB - These materials have been designed for use with the upper elementary through high school levels especially, but not exclusively, with the Lunar Sample Disk. This book contains: information on the Lunar Sample Disk, a curriculum content matrix, a teacher's guide, Moon ABCs fact sheet, rock ABCs fact sheet, Progress in Lunar Science chart, 17 activities, a resource section for each unit, and a list of National Aeronautics and Space Administration (NASA) educational resources. The activities are divided into three units: pre-Apollo, learning from Apollo, and the future. Classroom activities included promote problem-solving, communication skills, and teamwork. Each activity consists of teacher pages and reproducible student sheets. Teacher pages include a statement of purpose, background information, preparation, in-class suggestions, wrap-up ideas, and extensions. Student sheets include a purpose statement, key words, list of materials, procedure, questions with space provided for answers, and charts. Activities include: distance to the Moon, diameter of the Moon, reaping rocks, Apollo landing sites, Regolith formation, lunar surface, differentiation, impact craters, clay lava flows, lava layering, lunar landing sites, lunar roving vehicle, moon anomalies, lunar land use, life support systems, and lunar biospheres. (JRH) Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 160 PB - NASA, Education Division, Mail Code FET, Washington, DC 20546-0001. KW - ERIC, Resources in Education (RIE) KW - Practitioners KW - Teachers KW - Moons KW - Earth Science KW - Science Activities KW - Elementary Secondary Education KW - Astronomy KW - Space Sciences KW - Problem Solving UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62632907?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Surface ices in the outer solar system AN - 52340167; 2000-051803 JF - LPI Contribution AU - Roush, Ted L AU - Cruikshank, Dale P AU - Anonymous Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 40 EP - 41 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - icy satellites KW - Jupiter KW - aliphatic hydrocarbons KW - dwarf planets KW - nitrogen KW - giant planets KW - carbon dioxide KW - Saturn KW - ice KW - outer planets KW - satellites KW - interpretation KW - geochemistry KW - water KW - processes KW - solar system KW - methane KW - alkanes KW - evolution KW - planets KW - volatiles KW - organic compounds KW - Uranus KW - hydrocarbons KW - Charon KW - Pluto KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52340167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Surface+ices+in+the+outer+solar+system&rft.au=Roush%2C+Ted+L%3BCruikshank%2C+Dale+P%3BAnonymous&rft.aulast=Roush&rft.aufirst=Ted&rft.date=1994-09-01&rft.volume=&rft.issue=&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Conference on Deep Earth and planetary volatiles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; carbon dioxide; Charon; dwarf planets; evolution; geochemistry; giant planets; hydrocarbons; ice; icy satellites; interpretation; Jupiter; methane; nitrogen; organic compounds; outer planets; planets; Pluto; processes; satellites; Saturn; solar system; Uranus; volatiles; water ER - TY - JOUR T1 - Is xenon eldest? AN - 52338276; 2000-051810 JF - LPI Contribution AU - Zahnle, K AU - Anonymous Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 50 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - models KW - noble gases KW - magmas KW - mantle KW - solubility KW - xenon KW - distribution KW - melts KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52338276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Is+xenon+eldest%3F&rft.au=Zahnle%2C+K%3BAnonymous&rft.aulast=Zahnle&rft.aufirst=K&rft.date=1994-09-01&rft.volume=&rft.issue=&rft.spage=50&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Conference on Deep Earth and planetary volatiles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - distribution; magmas; mantle; melts; models; noble gases; solubility; xenon ER - TY - JOUR T1 - Infrared spectroscopy of Triton and Pluto ice analogs; the case for saturated hydrocarbons AN - 51678711; 2005-064365 JF - Icarus (Online) AU - Bohn, Robert B AU - Sandford, Scott A AU - Allamandola, Louis J AU - Cruikshank, Dale P Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 151 EP - 173 PB - Elsevier VL - 111 IS - 1 SN - 1090-2643, 1090-2643 KW - hydrology KW - icy satellites KW - Triton Satellite KW - methane KW - behavior KW - photochemistry KW - aliphatic hydrocarbons KW - atmosphere KW - solid nitrogen KW - alkanes KW - solid solution KW - dwarf planets KW - nitrogen KW - infrared spectra KW - organic compounds KW - ice KW - hydrocarbons KW - spectra KW - satellites KW - geochemistry KW - Pluto KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51678711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Infrared+spectroscopy+of+Triton+and+Pluto+ice+analogs%3B+the+case+for+saturated+hydrocarbons&rft.au=Bohn%2C+Robert+B%3BSandford%2C+Scott+A%3BAllamandola%2C+Louis+J%3BCruikshank%2C+Dale+P&rft.aulast=Bohn&rft.aufirst=Robert&rft.date=1994-09-01&rft.volume=111&rft.issue=1&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 61 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; behavior; dwarf planets; geochemistry; hydrocarbons; hydrology; ice; icy satellites; infrared spectra; methane; nitrogen; organic compounds; photochemistry; Pluto; satellites; solid nitrogen; solid solution; spectra; Triton Satellite ER - TY - JOUR T1 - Extent and timing of the last glacial maximum in Southwestern Alaska AN - 50959804; 1995-052630 JF - Quaternary Research AU - Mann, Daniel H AU - Peteet, Dorothy M Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 136 EP - 148 PB - Academic Press, New York, NY VL - 42 IS - 2 SN - 0033-5894, 0033-5894 KW - United States KW - last glacial maximum KW - glaciation KW - glacial extent KW - isotopes KW - glaciers KW - ice sheets KW - radioactive isotopes KW - geochronology KW - dates KW - carbon KW - glacial environment KW - sediments KW - moraines KW - absolute age KW - Alaska KW - Southwestern Alaska KW - glacial geology KW - depositional environment KW - C-14 KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Extent+and+timing+of+the+last+glacial+maximum+in+Southwestern+Alaska&rft.au=Mann%2C+Daniel+H%3BPeteet%2C+Dorothy+M&rft.aulast=Mann&rft.aufirst=Daniel&rft.date=1994-09-01&rft.volume=42&rft.issue=2&rft.spage=136&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 - 1995-01-01 N1 - Number of references - 69 N1 - PubXState - NY N1 - Document feature - illus. incl. strat. cols., 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - QRESAV N1 - SubjectsTermNotLitGenreText - absolute age; Alaska; C-14; carbon; dates; depositional environment; geochronology; glacial environment; glacial extent; glacial geology; glaciation; glaciers; ice sheets; isotopes; last glacial maximum; moraines; radioactive isotopes; sediments; Southwestern Alaska; United States ER - TY - JOUR T1 - First images of asteroid 243 Ida AN - 50210320; 1994-049086 JF - Science AU - Belton, M J S AU - Chapman, C R AU - Veverka, Joseph AU - Klaasen, K P AU - Harch, A AU - Greeley, Ronald AU - Greenberg, Richard AU - Head, J W, III AU - McEwen, A S AU - Morrison, David AU - Thomas, P C AU - Davies, M E AU - Carr, M H AU - Neukum, Gerhard AU - Fanale, F P AU - Davis, D R AU - Anger, C D AU - Gierasch, P J AU - Ingersoll, A P AU - Pilcher, C B Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 1543 EP - 1547 PB - American Association for the Advancement of Science, Washington, DC VL - 265 IS - 5178 SN - 0036-8075, 0036-8075 KW - albedo KW - surface properties KW - imagery KW - asteroids KW - Galileo Program KW - space photography KW - surficial geology KW - observations KW - Ida Asteroid KW - craters KW - age KW - surface features KW - S-type asteroids KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50210320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=First+images+of+asteroid+243+Ida&rft.au=Belton%2C+M+J+S%3BChapman%2C+C+R%3BVeverka%2C+Joseph%3BKlaasen%2C+K+P%3BHarch%2C+A%3BGreeley%2C+Ronald%3BGreenberg%2C+Richard%3BHead%2C+J+W%2C+III%3BMcEwen%2C+A+S%3BMorrison%2C+David%3BThomas%2C+P+C%3BDavies%2C+M+E%3BCarr%2C+M+H%3BNeukum%2C+Gerhard%3BFanale%2C+F+P%3BDavis%2C+D+R%3BAnger%2C+C+D%3BGierasch%2C+P+J%3BIngersoll%2C+A+P%3BPilcher%2C+C+B&rft.aulast=Belton&rft.aufirst=M+J&rft.date=1994-09-01&rft.volume=265&rft.issue=5178&rft.spage=1543&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - age; albedo; asteroids; craters; Galileo Program; Ida Asteroid; imagery; observations; regolith; S-type asteroids; space photography; surface features; surface properties; surficial geology ER - TY - JOUR T1 - Comparison of the LEW88516 and ALHA77005 Martian meteorites; similar but distinct AN - 50187173; 1995-010809 AB - By mineral and bulk compositions, the Lewis Cliff (LEW) 88516 meteorite is quite similar to the ALHA77005 martian meteorite. These two meteorites are not paired because their mineral compositions are distinct; they were found 500 km apart in ice fields with different sources for meteorites, and their terrestrial residence ages are different. Mineral contents identified, textures observed, and chemical analyses of the samples are compared and discussed. Key element abundance ratios, including those of noble gases, are noted, and cosmic ray exposure dates are deduced. The absence of substantial effects of shielding from cosmic rays suggests that LEW88516 was an object no larger than a few cm in diameter. (Auth. mod.) JF - Meteoritics AU - Treiman, A H AU - McKay, G A AU - Bogard, D D AU - Mittlefehldt, D W AU - Wang, M S AU - Keller, I AU - Lipschutz, M E AU - Lindstrom, M M AU - Garrison, D Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 581 EP - 592 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 5 SN - 0026-1114, 0026-1114 KW - silicates KW - LEW 88516 KW - stony meteorites KW - Martian meteorites KW - Lewis Cliff Meteorites KW - olivine group KW - achondrites KW - electron probe data KW - SNC Meteorites KW - nesosilicates KW - meteorites KW - Allan Hills Meteorites KW - mineral composition KW - shergottite KW - ALHA 77005 KW - olivine KW - orthosilicates KW - trace elements KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50187173?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Comparison+of+the+LEW88516+and+ALHA77005+Martian+meteorites%3B+similar+but+distinct&rft.au=Treiman%2C+A+H%3BMcKay%2C+G+A%3BBogard%2C+D+D%3BMittlefehldt%2C+D+W%3BWang%2C+M+S%3BKeller%2C+I%3BLipschutz%2C+M+E%3BLindstrom%2C+M+M%3BGarrison%2C+D&rft.aulast=Treiman&rft.aufirst=A&rft.date=1994-09-01&rft.volume=29&rft.issue=5&rft.spage=581&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 46 N1 - PubXState - AZ N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; ALHA 77005; Allan Hills Meteorites; electron probe data; LEW 88516; Lewis Cliff Meteorites; Martian meteorites; meteorites; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; shergottite; silicates; SNC Meteorites; stony meteorites; trace elements ER - TY - JOUR T1 - The origin of tektites; discussion and reply AN - 50187025; 1995-010819 JF - Meteoritics AU - Taylor, Stuart Ross AU - Koeberl, Christian AU - O'Keefe, J A Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 739 EP - 744 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 5 SN - 0026-1114, 0026-1114 KW - genesis KW - asteroids KW - volcanism KW - trace elements KW - tektites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50187025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=The+origin+of+tektites%3B+discussion+and+reply&rft.au=Taylor%2C+Stuart+Ross%3BKoeberl%2C+Christian%3BO%27Keefe%2C+J+A&rft.aulast=Taylor&rft.aufirst=Stuart&rft.date=1994-09-01&rft.volume=29&rft.issue=5&rft.spage=739&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 72 N1 - PubXState - AZ N1 - SuppNotes - For reference to original see O'Keefe, J. A., Meteoritics, Vol. 29, p. 73-78, 1994 N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; genesis; tektites; trace elements; volcanism ER - TY - JOUR T1 - Compositional variations of olivines and pyroxenes in chrondritic interplanetary dust particles AN - 50186043; 1995-010812 AB - Analyses of olivines and pyroxenes and petrofabrics are reported for 27 interplanetary dust particles (IDPs), and anhydrous and hydrous types are compared. Approximately 40% of the hydrous particles contain diopside, a probable indicator of thermal metamorphism, but this mineral is rarely present in anhydrous particles. Hydrous and anhydrous IDPs are therefore not directly related. Olivine and pyroxene major-element compositions can be used to help discriminate between IDPs that either: 1) are predominantly nebular condensates, and lately resided in anhydrous or icy primitive parent bodies, or 2) originated from more geochemically active parent bodies, probably hydrous and anhydrous asteroids. JF - Meteoritics AU - Zolensky, Michael E AU - Barrett, Ruth A Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 616 EP - 620 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 5 SN - 0026-1114, 0026-1114 KW - silicates KW - stony meteorites KW - olivine group KW - interplanetary dust KW - nesosilicates KW - meteorites KW - pyroxene group KW - olivine KW - orthosilicates KW - chondrites KW - P-T conditions KW - chain silicates KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50186043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Compositional+variations+of+olivines+and+pyroxenes+in+chrondritic+interplanetary+dust+particles&rft.au=Zolensky%2C+Michael+E%3BBarrett%2C+Ruth+A&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=1994-09-01&rft.volume=29&rft.issue=5&rft.spage=616&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1995-01-01 N1 - Number of references - 27 N1 - PubXState - AZ N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chain silicates; chondrites; interplanetary dust; meteorites; nesosilicates; olivine; olivine group; orthosilicates; P-T conditions; pyroxene group; silicates; stony meteorites ER - TY - JOUR T1 - A new titanium-bearing calcium aluminosilicate phase; I, Meteoritic occurrences and formations in synthetic systems AN - 50184517; 1995-010823 AB - A new Ti-bearing calcium aluminosilicate mineral, temporarily termed 'UNK', has been identified in coarse-grained calcium-aluminium-rich inclusions (CAIs) from carbonaceous chondrites. Its formula is Ca (sub 3) Ti(Al,Ti) (sub 2) (Si,Al) (sub 3) O (sub 14) , and it is present in at least 8 out of 20 coarse-grained CAIs from Allende that have been studied. It occurs in types A and B1 inclusions as small tabular crystals oriented along two mutually perpendicular planes in melilite. UNK crystallizes from melts in dynamic crystallization experiments conducted in air from bulk compositions modelled after Types A, B1, B2 and C inclusions. Cooling rates in the experiments were from 0.5 to 200 degrees C/h from maximum (initial) T of 1375-1580 degrees C, and UNK begins to crystallize below 1190 degrees C. The presence or absence of UNK can be understood in terms of the compositions of residual melts and nucleation probabilities. Compositions of synthetic and meteoritic UNK are very similar in terms of major oxides, differing only in the small amounts of trivalent Ti (7-13% of total Ti) in meteoritic samples. UNK crystallized from Type A analogue is similar texturally to that found in CAIs, although glass is typically associated with synthetic but not meteoritic occurrences. A low-Ti end-member of UNK ('Si-UNK') with a composition near Ca (sub 3) Al (sub 2) Si (sub 4) O (sub 14) was produced in a few samples from the Type B1 analogue, but this phase has not been observed in the meteoritic inclusions. JF - Meteoritics AU - Paque, Julie M AU - Beckett, John R AU - Barber, David J AU - Stolper, Edward M Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 673 EP - 682 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 5 SN - 0026-1114, 0026-1114 KW - silicates KW - calcium KW - alkaline earth metals KW - stony meteorites KW - carbonaceous chondrites KW - CV chondrites KW - CV3 chondrites KW - Allende Meteorite KW - meteorites KW - aluminosilicates KW - phase equilibria KW - titanium KW - metals KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50184517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=A+new+titanium-bearing+calcium+aluminosilicate+phase%3B+I%2C+Meteoritic+occurrences+and+formations+in+synthetic+systems&rft.au=Paque%2C+Julie+M%3BBeckett%2C+John+R%3BBarber%2C+David+J%3BStolper%2C+Edward+M&rft.aulast=Paque&rft.aufirst=Julie&rft.date=1994-09-01&rft.volume=29&rft.issue=5&rft.spage=673&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1995-01-01 N1 - Number of references - 24 N1 - PubXState - AZ N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Allende Meteorite; aluminosilicates; calcium; carbonaceous chondrites; chondrites; CV chondrites; CV3 chondrites; metals; meteorites; phase equilibria; silicates; stony meteorites; titanium ER - TY - JOUR T1 - Horizontal crustal motion in the central and eastern Mediterranean inferred from satellite laser ranging measurements AN - 50178594; 1995-051579 AB - Four campaigns to acquire Satellite Laser Ranging (SLR) measurements at sites in the Mediterranean region have been completed. These measurements to the LAGEOS satellite, made largely by mobile systems, cover a time span beginning in November 1985 and ending in June 1993. The range data from 18 sites in the central and eastern Mediterranean have been simultaneously analyzed with data acquired by the remainder of the global laser tracking network. Estimates of horizontal motion were placed into a regional, northern Europe-fixed, kinematic reference frame. Uncertainties are on the order of 5 mm/yr for sites having at least four occupations by mobile systems and approach 1 mm/yr for permanently located sites with long histories of tracking. The resulting relative motion between sites in the Aegean exhibit characteristics of broadly distributed pattern of radial extension, but at rates that are about 50% larger than those implied from studies of seismic strain rates based on seismicity of magnitude 6 or greater across the region. The motion estimated for sites in Turkey exhibit velocity components associated with the westward motion of the Anatolian Block relative to Eurasia. These results provide a present-day "snapshot" of ongoing deformational processes as experienced by the locations occupied by SLR systems. Copyright 1994 by the American Geophysical Union. JF - Geophysical Research Letters AU - Smith, David E AU - Kolenkiewicz, Ron AU - Robbins, John W AU - Dunn, Peter J AU - Torrence, Mark H Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 1979 EP - 1982 PB - American Geophysical Union, Washington, DC VL - 21 IS - 18 SN - 0094-8276, 0094-8276 KW - laser methods KW - central Mediterranean region KW - rates KW - laser ranging KW - satellite methods KW - MEDLAS KW - East Mediterranean KW - Anatolian Block KW - neotectonics KW - horizontal movements KW - Eurasia KW - Lageos KW - tectonics KW - Mediterranean Sea KW - Mediterranean region KW - crust KW - remote sensing KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50178594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Horizontal+crustal+motion+in+the+central+and+eastern+Mediterranean+inferred+from+satellite+laser+ranging+measurements&rft.au=Smith%2C+David+E%3BKolenkiewicz%2C+Ron%3BRobbins%2C+John+W%3BDunn%2C+Peter+J%3BTorrence%2C+Mark+H&rft.aulast=Smith&rft.aufirst=David&rft.date=1994-09-01&rft.volume=21&rft.issue=18&rft.spage=1979&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F94GL01612 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Anatolian Block; central Mediterranean region; crust; East Mediterranean; Eurasia; horizontal movements; Lageos; laser methods; laser ranging; Mediterranean region; Mediterranean Sea; MEDLAS; neotectonics; rates; remote sensing; satellite methods; tectonics DO - http://dx.doi.org/10.1029/94GL01612 ER - TY - JOUR T1 - Atmospheric pressure loading parameters from very long baseline interferometry observations AN - 50175293; 1995-052164 AB - Atmospheric mass loading produces a primarily vertical displacement of the Earth's crust. This displacement is correlated with surface pressure and is large enough to be detected by very long baseline interferometry (VLBI) measurements. Using the measured surface pressure at VLBI stations, we have estimated the atmospheric loading term for each station location directly from VLBI data acquired from 1979 to 1992. Our estimates of the vertical sensitivity to change in pressure range from 0 to -0.6 mm/mbar depending on the station. These estimates agree with inverted barometer model calculations (Manabe et al., 1991; vanDam and Herring, 1994) of the vertical displacement sensitivity computed by convolving actual pressure distributions with loading Green's functions. The pressure sensitivity tends to be smaller for stations near the coast, which is consistent with the inverted barometer hypothesis. Applying this estimated pressure loading correction in standard VLBI geodetic analysis improves the repeatability of estimated lengths of 25 out of 37 baselines that were measured at least 50 times. In a root-sum-square (rss) sense, the improvement generally increases with baseline length at a rate of about 0.3 to 0.6 ppb depending on whether the baseline stations are close to the coast. For the 5998-km baseline from Westford, Massachusetts, to Wettzell, Germany, the rss improvement is about 3.6 mm out of 11.0 mm. The average rss reduction of the vertical scatter for inland stations ranges from 2.7 to 5.4 mm. JF - Journal of Geophysical Research AU - MacMillan, D S AU - Gipson, John M Y1 - 1994/09// PY - 1994 DA - September 1994 SP - 18 EP - 18,087 PB - American Geophysical Union, Washington, DC VL - 99 IS - B9 SN - 0148-0227, 0148-0227 KW - pressure KW - loading KW - atmospheric pressure KW - atmosphere KW - very long baseline interferometry KW - satellite methods KW - crust KW - remote sensing KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50175293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Atmospheric+pressure+loading+parameters+from+very+long+baseline+interferometry+observations&rft.au=MacMillan%2C+D+S%3BGipson%2C+John+M&rft.aulast=MacMillan&rft.aufirst=D&rft.date=1994-09-01&rft.volume=99&rft.issue=B9&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JB01190 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 14 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric pressure; crust; loading; pressure; remote sensing; satellite methods; very long baseline interferometry DO - http://dx.doi.org/10.1029/94JB01190 ER - TY - GEN T1 - Space-Based Astronomy: A Teacher's Guide with Activities. AN - 62747962; ED384510 AB - This curriculum guide uses hands-on activities to help grade 5-8 students and teachers understand the significance of space-based astronomy--astronomical observations made from outside the Earth's atmosphere. The guide begins with a survey of astronomy-related spacecraft that the National Aeronautics and Space Administration (NASA) has sent into outer space. This is followed by a collection of activities organized into four units: The Atmospheric Filter, The Electromagnetic Spectrum, Collecting Electromagnetic Radiation, and Down to Earth. A curriculum matrix identifies the curriculum areas each activity addresses. Following the activities is information for obtaining a 35 mm slide set with descriptions showing current results from NASA spacecraft such as the Hubble Space Telescope, Compton Gamma Ray Observatory, and the Cosmic Background Explorer. The guide concludes with a glossary, reference list, a NASA Resources list, and an evaluation card. (MKR) Y1 - 1994/08// PY - 1994 DA - August 1994 SP - 97 KW - Hands on Science KW - ERIC, Resources in Education (RIE) KW - Teachers KW - Practitioners KW - Science Education KW - Physics KW - Earth Science KW - Junior High Schools KW - Astronomy KW - Middle Schools KW - Science Activities KW - Curriculum Guides KW - Teaching Guides KW - Learning Activities KW - Space Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62747962?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - GEN T1 - Suited for Spacewalking. Teacher's Guide with Activities for Physical and Life Science. Revised. AN - 62737611; ED381392 AB - This activity guide for teachers interested in using the intense interest many children have in space exploration as a launching point for exciting hands-on learning opportunities begins with brief discussions of the space environment, the history of spacewalking, the Space Shuttle spacesuit, and working in space. These are followed by a series of activities that enable students to explore the space environment as well as the science and technology behind the functions of spacesuits. The activities are not rated for specific grade levels because they can be adapted for students of many ages. A chart on curriculum application is designed to help teachers incorporate activities into various subject areas. Activities and related student projects make use of inexpensive and easy-to-find materials and tools. Activities are arranged into four basic units including: (1) investigating the space environment; (2) dressing for spacewalking; (3) moving and working in space; and (4) exploring the surface of Mars. Contains 17 references and 25 resources. (LZ) AU - Vogt, Gregory L. Y1 - 1994/08// PY - 1994 DA - August 1994 SP - 70 KW - Hands on Science KW - Space Shuttle KW - Space Suits KW - Space Travel KW - ERIC, Resources in Education (RIE) KW - Teachers KW - Practitioners KW - Science Education KW - Science Curriculum KW - Earth Science KW - Physical Sciences KW - Student Projects KW - Science Activities KW - Elementary Secondary Education KW - Space Exploration KW - Space Sciences KW - Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62737611?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Satellite measurement of sulfur dioxide from the Redoubt eruptions of 1989-1990 AN - 52751781; 1997-021849 AB - The mass of SO (sub 2) emitted by the 16 major explosive eruptions of Redoubt Volcano between December 1989 and April 1990 have been examined by the Total Ozone Mapping Spectrometer (TOMS) carried on the Nimbus 7 satellite. Because of low light levels during the winter months, TOMS could not detect SO (sub 2) at high northern latitudes. Thus, the major eruptions from December through February could not be monitored unless winds brought the clouds to latitudes lower than about 58 degrees N. Only two SO (sub 2) clouds were observed in the satellite data--an approximately 100-kiloton (kt) cloud on December 16 over Nevada and eastern California, and a 10-kt cloud on March 9 directly over the volcano. We speculate that the major eruption on December 15 at 1015 hour produced the 100-kt cloud seen on December 16, and the mass of SO (sub 2) injected into the atmosphere at that time was 175+ or -50 kt. JF - Journal of Volcanology and Geothermal Research AU - Schnetzler, C C AU - Doiron, S D AU - Walter, L S AU - Krueger, A J A2 - Miller, Thomas P. A2 - Chouet, Bernard A. Y1 - 1994/08// PY - 1994 DA - August 1994 SP - 353 EP - 357 PB - Elsevier, Amsterdam VL - 62 IS - 1-4 SN - 0377-0273, 0377-0273 KW - United States KW - sulfur dioxide KW - satellite methods KW - production KW - Southern Alaska KW - gases KW - Redoubt KW - volcanism KW - eruptions KW - volcanoes KW - Alaska KW - interpretation KW - geochemistry KW - remote sensing KW - 24:Quaternary geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52751781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Satellite+measurement+of+sulfur+dioxide+from+the+Redoubt+eruptions+of+1989-1990&rft.au=Schnetzler%2C+C+C%3BDoiron%2C+S+D%3BWalter%2C+L+S%3BKrueger%2C+A+J&rft.aulast=Schnetzler&rft.aufirst=C&rft.date=1994-08-01&rft.volume=62&rft.issue=1-4&rft.spage=353&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2F0377-0273%2894%2990041-8 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 4 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - Alaska; eruptions; gases; geochemistry; interpretation; production; Redoubt; remote sensing; satellite methods; Southern Alaska; sulfur dioxide; United States; volcanism; volcanoes DO - http://dx.doi.org/10.1016/0377-0273(94)90041-8 ER - TY - JOUR T1 - Suspended sediment distribution and residual transport in the coastal ocean off the Ganges-Brahmaputra River mouth AN - 50213881; 1994-047052 AB - An examination of suspended sediment dispersal in the coastal ocean off the Ganges-Brahmaputra river system using shipboard and satellite data reveal distinct patterns of sediment distribution and sediment motion which help explain the dynamics of the world's largest sediment dispersal system. During the low-discharge period, suspended sediment concentration distribution is mainly a function of tidal energy and the sediments are primarily transported as a suspension population. Satellite and sea-bed data indicate that transport of river sediments is largely restricted to an area landward of about the 20-isobath during the low-discharge period. A simplistic estimate of residual transport and its separation into tidal and non-tidal components indicate that non-tidal transport contributes about 47% of the total transport and has transport directions mostly southwestward during the northeast monsoon. The tidal residual transport, which contributes about 53% of the total transport, however, does not show any particular direction for most of the stations, although some landward stations show shoreward transport. Although few water-column measurements were made during the high-discharge period, data from this and previous studies suggest that the dominant transport direction is to the southwest for most of the year. JF - Marine Geology AU - Barua, Dilip K AU - Kuehl, Steven A AU - Miller, Richard L AU - Moore, Williard S A2 - Kuehl, Steven A. A2 - Makino, Yasuhiko Y1 - 1994/08// PY - 1994 DA - August 1994 SP - 41 EP - 61 PB - Elsevier, Amsterdam VL - 120 IS - 1-2 SN - 0025-3227, 0025-3227 KW - ocean circulation KW - time series analysis KW - statistical analysis KW - sedimentation KW - nearshore sedimentation KW - suspended materials KW - marine transport KW - tides KW - marine sediments KW - Indian Ocean KW - Bay of Bengal KW - Indian Peninsula KW - sediments KW - continental shelf KW - Asia KW - coastal sedimentation KW - Brahmaputra River KW - Bangladesh KW - remote sensing KW - Ganges River KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50213881?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Geology&rft.atitle=Suspended+sediment+distribution+and+residual+transport+in+the+coastal+ocean+off+the+Ganges-Brahmaputra+River+mouth&rft.au=Barua%2C+Dilip+K%3BKuehl%2C+Steven+A%3BMiller%2C+Richard+L%3BMoore%2C+Williard+S&rft.aulast=Barua&rft.aufirst=Dilip&rft.date=1994-08-01&rft.volume=120&rft.issue=1-2&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Marine+Geology&rft.issn=00253227&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00253227 LA - English DB - GeoRef N1 - Conference title - 29th international geological congress symposium on Tidal and shallow-sea sediments; modern environments N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1994-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - SuppNotes - Coll. William and Mary, Va. Inst. Mar. Sci., Contrib. No. 1858 N1 - Last updated - 2012-06-07 N1 - CODEN - MAGEA6 N1 - SubjectsTermNotLitGenreText - Asia; Bangladesh; Bay of Bengal; Brahmaputra River; coastal sedimentation; continental shelf; Ganges River; Indian Ocean; Indian Peninsula; marine sediments; marine transport; nearshore sedimentation; ocean circulation; remote sensing; sedimentation; sediments; statistical analysis; suspended materials; tides; time series analysis ER - TY - JOUR T1 - TEM study of relationships between the microstructures and magnetic properties of strongly magnetized magnetite and maghemite AN - 50212137; 1994-047747 AB - This study investigates relationships between microstructures revealed by TEM and the magnetic properties of strongly magnetized magnetite iron ore previously described as type I lodestone. JF - American Mineralogist AU - Banfield, Jillian F AU - Wasilewski, Peter J AU - Veblen, David R Y1 - 1994/08// PY - 1994 DA - August 1994 SP - 654 EP - 667 PB - Mineralogical Society of America, Washington, DC VL - 79 IS - 7-8 SN - 0003-004X, 0003-004X KW - thermal demagnetization KW - experimental studies KW - demagnetization KW - natural materials KW - electron diffraction analysis KW - magnetization KW - magnetic hysteresis KW - paleomagnetism KW - crystal structure KW - natural remanent magnetization KW - TEM data KW - temperature KW - magnetic properties KW - ultrastructure KW - remanent magnetization KW - mineral data KW - magnetic susceptibility KW - superstructure KW - oxides KW - maghemite KW - magnetite KW - 18:Solid-earth geophysics KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50212137?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=TEM+study+of+relationships+between+the+microstructures+and+magnetic+properties+of+strongly+magnetized+magnetite+and+maghemite&rft.au=Banfield%2C+Jillian+F%3BWasilewski%2C+Peter+J%3BVeblen%2C+David+R&rft.aulast=Banfield&rft.aufirst=Jillian&rft.date=1994-08-01&rft.volume=79&rft.issue=7-8&rft.spage=654&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - crystal structure; demagnetization; electron diffraction analysis; experimental studies; maghemite; magnetic hysteresis; magnetic properties; magnetic susceptibility; magnetite; magnetization; mineral data; natural materials; natural remanent magnetization; oxides; paleomagnetism; remanent magnetization; superstructure; TEM data; temperature; thermal demagnetization; ultrastructure ER - TY - JOUR T1 - Mechanical and hydrologic basis for the rapid motion of a large tidewater glacier; 1, Observations AN - 50178349; 1995-051465 AB - Measurements of glacier flow velocity and basal water pressure at two sites on Columbia Glacier, Alaska, are combined with meteorological and hydrologic data to provide an observational basis for assessing the role of water storage and basal water pressure in the rapid movement of this large glacier. During the period from July 5 to August 31, 1987, coordinated observations were made of glacier surface motion and of water level in five boreholes drilled to (or in one case near to) the glacier bed at two sites, 5 and 12 km from the terminus. Glacier velocities increased downglacier in this reach from about 4 m d (super -1) to about 7 m d (super -1) . Three types of time variation in velocity and other variables were revealed: (1) Diurnal fluctuation in water input/output, borehole water level, and ice velocity (fluctuation amplitude 5 to 8%); (2) Speed-up events in glacier motion (15-30% speed up), lasting about 3 days, and occurring at times of enhanced input of water, in some cases from rain and in others from ice ablation enhanced by strong, warm winds; (3) "Extra-slowdown" events, in which, after a speed-up event, the ice velocity decreased in about 3 days to a level consistently lower than that prior to the speed-up event. All of the time variations in velocity were due, directly or indirectly, to variations in water input to the glacier. The role of basal water in causing the observed glacier motions is interpreted by Kamb et al. (this issue). JF - Journal of Geophysical Research AU - Meier, Mark AU - Lundstrom, Scott AU - Stone, Dan AU - Kamb, Barclay AU - Engelhardt, Hermann AU - Humphrey, Neil AU - Dunlap, William W AU - Fahnestock, Mark A AU - Krimmel, Robert M AU - Walters, Roy Y1 - 1994/08// PY - 1994 DA - August 1994 SP - 15 EP - 15,229 PB - American Geophysical Union, Washington, DC VL - 99 IS - B8 SN - 0148-0227, 0148-0227 KW - United States KW - Columbia Glacier KW - water storage KW - monitoring KW - tidewater glaciers KW - pressure KW - glaciers KW - rates KW - atmospheric precipitation KW - glacier surges KW - ice movement KW - water pressure KW - velocity KW - Alaska KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50178349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mechanical+and+hydrologic+basis+for+the+rapid+motion+of+a+large+tidewater+glacier%3B+1%2C+Observations&rft.au=Meier%2C+Mark%3BLundstrom%2C+Scott%3BStone%2C+Dan%3BKamb%2C+Barclay%3BEngelhardt%2C+Hermann%3BHumphrey%2C+Neil%3BDunlap%2C+William+W%3BFahnestock%2C+Mark+A%3BKrimmel%2C+Robert+M%3BWalters%2C+Roy&rft.aulast=Meier&rft.aufirst=Mark&rft.date=1994-08-01&rft.volume=99&rft.issue=B8&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JB00237 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 24 N1 - PubXState - DC N1 - Document feature - illus. incl. sect., 1 plate, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; atmospheric precipitation; Columbia Glacier; glacial geology; glacier surges; glaciers; ice movement; monitoring; pressure; rates; tidewater glaciers; United States; velocity; water pressure; water storage DO - http://dx.doi.org/10.1029/94JB00237 ER - TY - JOUR T1 - Pioneer and Voyager observations of solar cycle variations in the outer heliosphere AN - 1671566689; 19554927 AB - Solar wind measurements from the Pioneer 10, Pioneer 11, and Voyager 2 spacecraft are now available through mid-1993. These measurements extend our knowledge of the outer heliosphere to heliographic latitudes that range between -10 degree and 17.5 degree , and provide insight into the variation with solar cycle of the structure of the distant solar wind. The average temperature, mass flux density, dynamic pressure, and kinetic and thermal energy flux densities varied strongly with solar cycle at the latitude of Pioneer 11 (10 degree to 17 degree N), but were almost constant in the vicinity of the solar equator. These parameters may have increased with latitude between the solar equator and 17 degree N. There was also a short-term variation in average solar wind parameters near the time of the 1986 solar minimum, when the inclination of the heliospheric current sheet dropped below the latitude of Pioneer 11. JF - Geophysical Research Letters AU - Gazis, PR AD - San Jose State University Foundation, NASA Ames Research Center, Moffett Field, California. Y1 - 1994/08// PY - 1994 DA - Aug 1994 SP - 1743 EP - 1746 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 21 IS - 16 SN - 0094-8276, 0094-8276 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Inclination KW - Flux density KW - Solar wind KW - Flux KW - Voyager 2 spacecraft KW - Latitude KW - Heliosphere KW - Solar cycles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671566689?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Pioneer+and+Voyager+observations+of+solar+cycle+variations+in+the+outer+heliosphere&rft.au=Gazis%2C+PR&rft.aulast=Gazis&rft.aufirst=PR&rft.date=1994-08-01&rft.volume=21&rft.issue=16&rft.spage=1743&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F94GL01428 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-06-01 N1 - Last updated - 2015-04-09 DO - http://dx.doi.org/10.1029/94GL01428 ER - TY - JOUR T1 - Real time dose rate and LET spectrum aboard MIR station during 1992. AN - 77115874; 11539522 AB - Since the end of July 1992, the NAUSICAA system, a low gas pressured tissue equivalent proportional counter, recorded in real time the dose equivalent rate, the absorbed dose rate, the quality factor and the Linear Energy Transfer spectra, aboard the Russian orbital station MIR. The results since the ANTARES mission are presented. Some parameters like the proton flux, the previous solar cycles, the location of the NAUSICAA system inside the station and the South Atlantic Anomaly crossing seem to have an influence on these results. The total dose equivalent (H) during the ANTARES mission (between 1992 July the 30th and August the 10th) was 12 mSv and the total absorbed dose (D) 6.4 mGy with a quality factor (Q) equal to 1.9. The NAUSICAA system gives a good knowledge of LET spectra for the first time in space dosimetry. JF - Acta astronautica AU - Lebaron-Jacobs, L AU - Bottollier-Depois, J F AU - Nguyen, V D AU - Siegrist, M AU - Andre-Deshays, C AU - Marsal, O AU - Petrov, V M AU - Koslova, S B AU - Tognini, M AU - Avdeev, S AD - IPSN--CEA, France. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 195 EP - 199 VL - 33 SN - 0094-5765, 0094-5765 KW - Protons KW - 0 KW - Space life sciences KW - manned KW - Soyuz TM15 Project KW - Soyuz Project KW - Flight Experiment KW - Mir Project KW - short duration KW - long duration KW - Radiation Dosage KW - South America KW - Spacecraft -- instrumentation KW - Radiation Monitoring -- instrumentation KW - Atlantic Ocean KW - Space Flight -- instrumentation KW - Solar Activity KW - Cosmic Radiation KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115874?accountid=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=Acta+astronautica&rft.atitle=Real+time+dose+rate+and+LET+spectrum+aboard+MIR+station+during+1992.&rft.au=Lebaron-Jacobs%2C+L%3BBottollier-Depois%2C+J+F%3BNguyen%2C+V+D%3BSiegrist%2C+M%3BAndre-Deshays%2C+C%3BMarsal%2C+O%3BPetrov%2C+V+M%3BKoslova%2C+S+B%3BTognini%2C+M%3BAvdeev%2C+S&rft.aulast=Lebaron-Jacobs&rft.aufirst=L&rft.date=1994-07-01&rft.volume=33&rft.issue=&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-24 N1 - Date created - 1997-08-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Contaminant accumulation in space water recycle systems. AN - 77115799; 11539535 JF - Acta astronautica AU - Silverstein, J AU - Brion, G M AU - Barkley, R AU - Dunham, A AU - Hurst, C AU - Todd, P AU - Schulz, J AD - Dept. Civil, Environmental & Architectural Engineering; University of Colorado, Boulder, USA. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 317 EP - 338 VL - 33 SN - 0094-5765, 0094-5765 KW - Disinfectants KW - 0 KW - Iodides KW - Water Pollutants KW - Water KW - 059QF0KO0R KW - Iodine KW - 9679TC07X4 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Program NSCORT KW - Non-NASA Center KW - NASA Discipline Environmental Health KW - Spacecraft KW - Water Microbiology KW - Ecological Systems, Closed KW - Iodides -- chemistry KW - Water Supply -- analysis KW - Iodine -- chemistry KW - Water Supply -- standards KW - Levivirus -- drug effects KW - Water -- chemistry KW - Disinfectants -- chemistry KW - Levivirus -- physiology KW - Iodine -- pharmacology KW - Water Purification -- methods KW - Disinfectants -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77115799?accountid=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=Acta+astronautica&rft.atitle=Contaminant+accumulation+in+space+water+recycle+systems.&rft.au=Silverstein%2C+J%3BBrion%2C+G+M%3BBarkley%2C+R%3BDunham%2C+A%3BHurst%2C+C%3BTodd%2C+P%3BSchulz%2C+J&rft.aulast=Silverstein&rft.aufirst=J&rft.date=1994-07-01&rft.volume=33&rft.issue=&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-12 N1 - Date created - 1997-08-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Anticipating the reaction: public concern about sample return missions. AN - 77113625; 11539584 JF - The Planetary report AU - Race, M S AD - College of Natural Resources, University of California, Berkeley, USA. PY - 1994 SP - 20 EP - 22 VL - 14 IS - 4 SN - 0736-3680, 0736-3680 KW - DNA, Recombinant KW - 0 KW - Space life sciences KW - NASA Discipline Exobiology KW - NASA Center ARC KW - United States KW - Space Flight -- legislation & jurisprudence KW - United States National Aeronautics and Space Administration KW - Space Flight -- standards KW - Earth (Planet) KW - Mars KW - Environmental Pollution -- prevention & control KW - Extraterrestrial Environment KW - Public Opinion KW - Containment of Biohazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Planetary+report&rft.atitle=Anticipating+the+reaction%3A+public+concern+about+sample+return+missions.&rft.au=Race%2C+M+S&rft.aulast=Race&rft.aufirst=M&rft.date=1994-07-01&rft.volume=14&rft.issue=4&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=The+Planetary+report&rft.issn=07363680&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-09-07 N1 - Date created - 1997-09-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Inhalation risk in low-gravity spacecraft. AN - 77113454; 11539534 AB - Inhalation risks on long-duration manned spaced flight include gasses chronically released by outgassing of materials, gasses released during spills, thermodegradation events (including fires) with their attendant particulates, and fire extinguishment. As an example, an event in which electronic insulation consisting of polytetrafluoroethylene undergoes thermodegradation on the Space Station Freedom was modeled experimentally and theoretically from the initial chemistry and convective transport through pulmonary deposition in humans. The low-gravity environment was found to impact various stages of event simulation. Critical unknowns were identified, and these include the extent of production of ultrafine particles and polymeric products at the source in low gravity, the transport of ultrafine particles in the spacecraft air quality control system, and the biological response of the lung, including alveolar macrophages, to this inhalation risk in low gravity. JF - Acta astronautica AU - Todd, P AU - Sklar, V AU - Ramirez, W F AU - Smith, G J AU - Morgenthaler, G W AU - McKinnon, J T AU - Oberdorster, G AU - Schulz, J AD - Department of Chemical Engineering, University of Colorado, Boulder 80309, USA. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 305 EP - 315 VL - 33 SN - 0094-5765, 0094-5765 KW - Aerosols KW - 0 KW - Air Pollutants KW - Polytetrafluoroethylene KW - 9002-84-0 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Program NSCORT KW - Non-NASA Center KW - NASA Discipline Environmental Health KW - Inhalation KW - Convection KW - Computer Simulation KW - Environmental Health KW - Air Pollutants -- pharmacokinetics KW - Humans KW - Lung -- metabolism KW - Spacecraft KW - Lung -- physiology KW - Ecological Systems, Closed KW - Models, Theoretical KW - Respiratory Transport -- physiology KW - Polytetrafluoroethylene -- chemistry KW - Space Flight KW - Weightlessness KW - Polytetrafluoroethylene -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113454?accountid=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=Acta+astronautica&rft.atitle=Inhalation+risk+in+low-gravity+spacecraft.&rft.au=Todd%2C+P%3BSklar%2C+V%3BRamirez%2C+W+F%3BSmith%2C+G+J%3BMorgenthaler%2C+G+W%3BMcKinnon%2C+J+T%3BOberdorster%2C+G%3BSchulz%2C+J&rft.aulast=Todd&rft.aufirst=P&rft.date=1994-07-01&rft.volume=33&rft.issue=&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-12 N1 - Date created - 1997-08-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Risk Assessment Team Report: hazard identification and risk assessment in the extended spaceflight environment. AN - 77112679; 11539532 JF - Acta astronautica AU - Irons, R D AU - Clarkson, T W AU - Schulz, J AU - Eberhardt, R AU - Weiss, B AU - Todd, P AU - Morgenthaler, G W AU - Oberdorster, G AU - Utell, M J Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 277 EP - 287 VL - 33 SN - 0094-5765, 0094-5765 KW - Hazardous Substances KW - 0 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Program NSCORT KW - Non-NASA Center KW - NASA Discipline Environmental Health KW - United States KW - Extravehicular Activity KW - Maximum Allowable Concentration KW - Air Pollution, Indoor KW - United States National Aeronautics and Space Administration KW - Humans KW - Containment of Biohazards -- standards KW - Containment of Biohazards -- methods KW - Ecological Systems, Closed KW - Risk Assessment KW - Occupational Exposure KW - Astronauts KW - Space Flight -- standards KW - Spacecraft -- standards KW - Toxicity Tests -- methods KW - Hazardous Substances -- standards KW - Toxicity Tests -- standards KW - Hazardous Substances -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112679?accountid=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=Acta+astronautica&rft.atitle=Risk+Assessment+Team+Report%3A+hazard+identification+and+risk+assessment+in+the+extended+spaceflight+environment.&rft.au=Irons%2C+R+D%3BClarkson%2C+T+W%3BSchulz%2C+J%3BEberhardt%2C+R%3BWeiss%2C+B%3BTodd%2C+P%3BMorgenthaler%2C+G+W%3BOberdorster%2C+G%3BUtell%2C+M+J&rft.aulast=Irons&rft.aufirst=R&rft.date=1994-07-01&rft.volume=33&rft.issue=&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-12 N1 - Date created - 1997-08-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Heavy ion and cosmic radiation effects in different targets of the Arabidopsis seed. AN - 77112530; 11539523 AB - The seed embryo of Arabidopsis thaliana, the favorite plant of up-to-date molecular developmental biology, represents a valuable model system for space radiation research with heavy ions. For several years, densely ionizing particles have been available for basic studies in nuclear physics and radiation biology through special accelerators as well as through space flight missions. Because of the great variability of the available radiation spectra, the induced relative biological effect (RBE-value) has to be differentiated with respect to the effective charge (z) and the linear energy transfer (LET) deposited in a certain volume of matter, and to the biological targets which differ in size, structure and function. The results of comparative studies of 8 space flight experiments, here by example show increasing damage produced by single heavy ions and/or cosmic background radiation (protons, neutrons, X-rays). These results offer new prospects for molecular investigation of the RBE of heavy ions in space. JF - Acta astronautica AU - Kranz, A R AD - Botanisches Institut, J.W. Goethe-Universitat, Frankfurt am Main, Germany. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 201 EP - 210 VL - 33 SN - 0094-5765, 0094-5765 KW - Space life sciences KW - manned KW - unmanned KW - Flight Experiment KW - Cosmos 1887 Project KW - short duration KW - long duration KW - LDEF Project KW - Cosmos 2044 Project KW - STS Shuttle Project KW - Relative Biological Effectiveness KW - Radiometry KW - Particle Accelerators KW - Chromosome Aberrations KW - Radiobiology -- methods KW - Mutation KW - Linear Energy Transfer KW - Radiation, Ionizing KW - Arabidopsis -- genetics KW - Arabidopsis -- radiation effects KW - Space Flight KW - Seeds -- genetics KW - Seeds -- radiation effects KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112530?accountid=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=Acta+astronautica&rft.atitle=Heavy+ion+and+cosmic+radiation+effects+in+different+targets+of+the+Arabidopsis+seed.&rft.au=Kranz%2C+A+R&rft.aulast=Kranz&rft.aufirst=A&rft.date=1994-07-01&rft.volume=33&rft.issue=&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-12 N1 - Date created - 1997-08-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Kriging in the shadows; geostatistical interpolation for remote sensing AN - 52598313; 1998-038140 JF - Remote Sensing of Environment AU - Rossi, Richard E AU - Dungan, Jennifer L AU - Beck, Louisa R Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 32 EP - 40 PB - Elsevier, New York, NY VL - 49 IS - 1 SN - 0034-4257, 0034-4257 KW - thematic mapper KW - cloud shadows KW - medical geology KW - data handling KW - kriging KW - data processing KW - Anopheles albimanus KW - modern KW - pasture KW - sampling KW - Invertebrata KW - probability KW - Insecta KW - variance analysis KW - statistical analysis KW - agriculture KW - interpolation KW - geostatistics KW - equations KW - satellite methods KW - Tapachula Mexico KW - Landsat KW - variograms KW - Mexico KW - Arthropoda KW - larvae KW - Mandibulata KW - Chiapas Mexico KW - land use KW - image analysis KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52598313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Kriging+in+the+shadows%3B+geostatistical+interpolation+for+remote+sensing&rft.au=Rossi%2C+Richard+E%3BDungan%2C+Jennifer+L%3BBeck%2C+Louisa+R&rft.aulast=Rossi&rft.aufirst=Richard&rft.date=1994-07-01&rft.volume=49&rft.issue=1&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00344257 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 - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RSEEA7 N1 - SubjectsTermNotLitGenreText - agriculture; Anopheles albimanus; Arthropoda; Chiapas Mexico; cloud shadows; data handling; data processing; equations; geostatistics; image analysis; Insecta; interpolation; Invertebrata; kriging; land use; Landsat; larvae; Mandibulata; medical geology; Mexico; modern; pasture; probability; remote sensing; sampling; satellite methods; statistical analysis; Tapachula Mexico; thematic mapper; variance analysis; variograms ER - TY - JOUR T1 - Constraints on the nature of the Kapuskasing structural zone from the study of Proterozoic dyke swarms AN - 50963364; 1994-056103 JF - Canadian Journal of Earth Sciences = Revue Canadienne des Sciences de la Terre AU - Halls, H C AU - Palmer, H C AU - Bates, M P AU - Phinney, W C Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 1182 EP - 1196 PB - National Research Council of Canada, Ottawa, ON VL - 31 IS - 7 SN - 0008-4077, 0008-4077 KW - granulite facies KW - upper Precambrian KW - continental crust KW - dike swarms KW - metamorphic rocks KW - amphibolite facies KW - Canadian Shield KW - tectonics KW - Kapuskasing Zone KW - geochemistry KW - faults KW - North America KW - Matachewan Belt KW - Precambrian KW - Superior Province KW - Proterozoic KW - paleomagnetism KW - Lithoprobe KW - emplacement KW - Ontario KW - imbricate tectonics KW - intrusions KW - dikes KW - Canada KW - thrust faults KW - Eastern Canada KW - Ivanhoe Lake fault zone KW - crust KW - facies KW - 16:Structural geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50963364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Earth+Sciences+%3D+Revue+Canadienne+des+Sciences+de+la+Terre&rft.atitle=Constraints+on+the+nature+of+the+Kapuskasing+structural+zone+from+the+study+of+Proterozoic+dyke+swarms&rft.au=Halls%2C+H+C%3BPalmer%2C+H+C%3BBates%2C+M+P%3BPhinney%2C+W+C&rft.aulast=Halls&rft.aufirst=H&rft.date=1994-07-01&rft.volume=31&rft.issue=7&rft.spage=1182&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Earth+Sciences+%3D+Revue+Canadienne+des+Sciences+de+la+Terre&rft.issn=00084077&rft_id=info:doi/10.1139%2Fe94-104 L2 - http://www.nrcresearchpress.com/journal/cjes LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 61 N1 - PubXState - ON N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Lithoprobe Publ. No. 443 N1 - Last updated - 2016-10-25 N1 - CODEN - CJESAP N1 - SubjectsTermNotLitGenreText - amphibolite facies; Canada; Canadian Shield; continental crust; crust; dike swarms; dikes; Eastern Canada; emplacement; facies; faults; geochemistry; granulite facies; imbricate tectonics; intrusions; Ivanhoe Lake fault zone; Kapuskasing Zone; Lithoprobe; Matachewan Belt; metamorphic rocks; North America; Ontario; paleomagnetism; Precambrian; Proterozoic; Superior Province; tectonics; thrust faults; upper Precambrian DO - http://dx.doi.org/10.1139/e94-104 ER - TY - JOUR T1 - Diffusive modification of primary zoning in olivine cores in angrite LEW 87051 AN - 50425123; 2009-054609 JF - Meteoritics AU - Mikouchi, T AU - McKay, G AU - Miyamoto, M AU - Takeda, H A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 503 EP - 504 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - calcium KW - stony meteorites KW - Lewis Cliff Meteorites KW - angrite KW - olivine group KW - manganese KW - temperature KW - meteorites KW - crystal zoning KW - olivine KW - orthosilicates KW - crystal fractionation KW - chromium KW - alkaline earth metals KW - experimental studies KW - diffusion KW - rates KW - achondrites KW - nesosilicates KW - Antarctica KW - LEW 87051 KW - metals KW - crystallization 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/50425123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Diffusive+modification+of+primary+zoning+in+olivine+cores+in+angrite+LEW+87051&rft.au=Mikouchi%2C+T%3BMcKay%2C+G%3BMiyamoto%2C+M%3BTakeda%2C+H&rft.aulast=Mikouchi&rft.aufirst=T&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=503&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; angrite; Antarctica; calcium; chromium; crystal fractionation; crystal zoning; crystallization; diffusion; experimental studies; LEW 87051; Lewis Cliff Meteorites; manganese; metals; meteorites; nesosilicates; olivine; olivine group; orthosilicates; rates; silicates; stony meteorites; temperature ER - TY - JOUR T1 - Geochemical evidence for mixing of three components in Martian orthopyroxenite ALH 84001 AN - 50423860; 2009-054610 JF - Meteoritics AU - Mittlefehldt, D W AU - Lindstrom, M M A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 504 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - stony meteorites KW - Martian meteorites KW - augite KW - metasomatism KW - lithophile elements KW - meteorites KW - pyroxene group KW - clinopyroxene KW - oxides KW - ALH 84001 KW - trace elements KW - chondrites KW - chemical composition KW - chain silicates KW - apatite KW - alkali metals KW - chromite KW - phosphates KW - sodium KW - achondrites KW - Allan Hills Meteorites KW - Antarctica KW - metals KW - pyrite KW - orthopyroxene KW - sulfides 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/50423860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Geochemical+evidence+for+mixing+of+three+components+in+Martian+orthopyroxenite+ALH+84001&rft.au=Mittlefehldt%2C+D+W%3BLindstrom%2C+M+M&rft.aulast=Mittlefehldt&rft.aufirst=D&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=504&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; alkali metals; Allan Hills Meteorites; Antarctica; apatite; augite; chain silicates; chemical composition; chondrites; chromite; clinopyroxene; lithophile elements; Martian meteorites; metals; metasomatism; meteorites; orthopyroxene; oxides; phosphates; pyrite; pyroxene group; silicates; sodium; stony meteorites; sulfides; trace elements ER - TY - JOUR T1 - Experimental space weathering of regolith material AN - 50423489; 2009-054602 JF - Meteoritics AU - McKay, D S AU - Allen, C C A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 500 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - experimental studies KW - volcanic rocks KW - glasses KW - Moon KW - igneous rocks KW - weathering KW - iron KW - ferrous iron KW - pyroclastics KW - metals KW - basalts KW - reduction KW - kinetics KW - SEM data KW - regolith KW - minerals KW - lunar soils KW - 02C:Geochemistry of rocks, soils, and sediments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50423489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Experimental+space+weathering+of+regolith+material&rft.au=McKay%2C+D+S%3BAllen%2C+C+C&rft.aulast=McKay&rft.aufirst=D&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=500&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - basalts; experimental studies; ferrous iron; glasses; igneous rocks; iron; kinetics; lunar soils; metals; minerals; Moon; pyroclastics; reduction; regolith; SEM data; volcanic rocks; weathering ER - TY - JOUR T1 - What would we miss if we characterized the Moon and Mars with just planetary meteorites, remote mapping, and robotic landers? AN - 50423032; 2009-054584 JF - Meteoritics AU - Lindstrom, M M A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 491 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - volcanic rocks KW - Moon KW - igneous rocks KW - Mars KW - mapping KW - Apollo Program KW - anorthosite KW - exploration KW - terrestrial planets KW - planets KW - meteorites KW - plutonic rocks KW - sampling KW - basalts KW - remote sensing KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50423032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=What+would+we+miss+if+we+characterized+the+Moon+and+Mars+with+just+planetary+meteorites%2C+remote+mapping%2C+and+robotic+landers%3F&rft.au=Lindstrom%2C+M+M&rft.aulast=Lindstrom&rft.aufirst=M&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=491&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - anorthosite; Apollo Program; basalts; exploration; igneous rocks; mapping; Mars; meteorites; Moon; planets; plutonic rocks; remote sensing; sampling; terrestrial planets; volcanic rocks ER - TY - JOUR T1 - Petrologic evolution of CM chondrites; the difficulty of discriminating between nebular and parent-body effects AN - 50422983; 2009-054564 JF - Meteoritics AU - Kerridge, J F AU - McSween, H Y, Jr AU - Bunch, T E A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 481 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - serpentine KW - alteration KW - stony meteorites KW - parent bodies KW - mantle KW - effects KW - carbonaceous chondrites KW - temperature KW - calcite KW - meteorites KW - serpentine group KW - dynamics KW - sheet silicates KW - CM chondrites KW - chondrites KW - carbonates KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50422983?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Petrologic+evolution+of+CM+chondrites%3B+the+difficulty+of+discriminating+between+nebular+and+parent-body+effects&rft.au=Kerridge%2C+J+F%3BMcSween%2C+H+Y%2C+Jr%3BBunch%2C+T+E&rft.aulast=Kerridge&rft.aufirst=J&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alteration; calcite; carbonaceous chondrites; carbonates; chondrites; CM chondrites; dynamics; effects; mantle; meteorites; parent bodies; regolith; serpentine; serpentine group; sheet silicates; silicates; stony meteorites; temperature ER - TY - JOUR T1 - Mn-Cr isotopic systematics of individual Chainpur chondrules AN - 50422935; 2009-054625 JF - Meteoritics AU - Nyquist, L AU - Lindstrom, D AU - Wiesmann, H AU - Martinez, R AU - Bansal, B AU - Mittlefehldt, D AU - Shih, C Y AU - Wentworth, S A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 512 EP - 513 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - zinc KW - concentration KW - ordinary chondrites KW - stony meteorites KW - condensation KW - Chainpur Meteorite KW - refractory materials KW - isotope ratios KW - enrichment KW - Mn-55/Cr-52 KW - LL chondrites KW - carbonaceous chondrites KW - manganese KW - meteorites KW - volatiles KW - mineral composition KW - metals KW - chondrules KW - age KW - chondrites KW - SEM data KW - chromium KW - degassing KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50422935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Mn-Cr+isotopic+systematics+of+individual+Chainpur+chondrules&rft.au=Nyquist%2C+L%3BLindstrom%2C+D%3BWiesmann%2C+H%3BMartinez%2C+R%3BBansal%2C+B%3BMittlefehldt%2C+D%3BShih%2C+C+Y%3BWentworth%2C+S&rft.aulast=Nyquist&rft.aufirst=L&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=512&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 10 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - age; carbonaceous chondrites; Chainpur Meteorite; chondrites; chondrules; chromium; concentration; condensation; degassing; enrichment; isotope ratios; LL chondrites; manganese; metals; meteorites; mineral composition; Mn-55/Cr-52; ordinary chondrites; refractory materials; SEM data; stony meteorites; volatiles; zinc ER - TY - JOUR T1 - Martian carbonates in ALH 84001; textural, elemental, and stable isotopic compositional evidence on their formation AN - 50422666; 2009-054645 JF - Meteoritics AU - Romanek, C S AU - Mittlefehldt, D W AU - Gibson, E K, Jr AU - Socki, R A A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 523 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - stony meteorites KW - oxygen KW - isotopes KW - textures KW - Martian meteorites KW - isotope ratios KW - enrichment KW - C-13/C-12 KW - O-18/O-16 KW - achondrites KW - stable isotopes KW - meteorites KW - Allan Hills Meteorites KW - pyroxene group KW - Antarctica KW - carbon KW - orthopyroxene KW - ALH 84001 KW - chemical composition KW - depletion KW - carbonates KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50422666?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Martian+carbonates+in+ALH+84001%3B+textural%2C+elemental%2C+and+stable+isotopic+compositional+evidence+on+their+formation&rft.au=Romanek%2C+C+S%3BMittlefehldt%2C+D+W%3BGibson%2C+E+K%2C+Jr%3BSocki%2C+R+A&rft.aulast=Romanek&rft.aufirst=C&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=523&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; Allan Hills Meteorites; Antarctica; C-13/C-12; carbon; carbonates; chain silicates; chemical composition; depletion; enrichment; isotope ratios; isotopes; Martian meteorites; meteorites; O-18/O-16; orthopyroxene; oxygen; pyroxene group; silicates; stable isotopes; stony meteorites; textures ER - TY - JOUR T1 - Compound chondrules; an experimental investigation AN - 50422549; 2009-054520 JF - Meteoritics AU - Connolly, H C, Jr AU - Hewins, R H AU - Atre, N AU - Lofgren, G E A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 458 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - experimental studies KW - olivine group KW - nesosilicates KW - meteorites KW - melting KW - pellets KW - nucleation KW - fayalite KW - chondrules KW - orthosilicates KW - chemical composition KW - P-T conditions KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50422549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Compound+chondrules%3B+an+experimental+investigation&rft.au=Connolly%2C+H+C%2C+Jr%3BHewins%2C+R+H%3BAtre%2C+N%3BLofgren%2C+G+E&rft.aulast=Connolly&rft.aufirst=H&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=458&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chemical composition; chondrules; experimental studies; fayalite; melting; meteorites; nesosilicates; nucleation; olivine group; orthosilicates; P-T conditions; pellets; silicates ER - TY - JOUR T1 - Large ejecta fragments from asteroids AN - 50422461; 2009-054484 JF - Meteoritics AU - Asphaug, E A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 440 EP - 441 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - asteroids KW - Vesta Asteroid KW - Mars KW - ejecta KW - terrestrial planets KW - planets KW - craters KW - fragments KW - velocity KW - basaltic composition KW - spallation KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50422461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Large+ejecta+fragments+from+asteroids&rft.au=Asphaug%2C+E&rft.aulast=Asphaug&rft.aufirst=E&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=440&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 10 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; basaltic composition; craters; crust; ejecta; fragments; Mars; planets; spallation; terrestrial planets; velocity; Vesta Asteroid ER - TY - JOUR T1 - Spectral analyses of ALH 84001, a meteorite from Mars AN - 50421774; 2009-054492 JF - Meteoritics AU - Bishop, J AU - Pieters, C AU - Mustard, J AU - Pratt, S AU - Hiroi, T A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 444 EP - 445 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - stony meteorites KW - Martian meteorites KW - igneous rocks KW - spectral analysis KW - achondrites KW - infrared spectra KW - meteorites KW - absorption KW - Allan Hills Meteorites KW - pyroxene group KW - mineral composition KW - Antarctica KW - spectra KW - ALH 84001 KW - reflectance KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50421774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Spectral+analyses+of+ALH+84001%2C+a+meteorite+from+Mars&rft.au=Bishop%2C+J%3BPieters%2C+C%3BMustard%2C+J%3BPratt%2C+S%3BHiroi%2C+T&rft.aulast=Bishop&rft.aufirst=J&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=444&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 2 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absorption; achondrites; ALH 84001; Allan Hills Meteorites; Antarctica; chain silicates; igneous rocks; infrared spectra; Martian meteorites; meteorites; mineral composition; pyroxene group; reflectance; silicates; spectra; spectral analysis; stony meteorites ER - TY - JOUR T1 - Measuring glass abundances in lunar agglutinates AN - 50421679; 2009-054676 JF - Meteoritics AU - Strait, M M AU - Basu, A AU - McKay, D S AU - Robinson, R A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 537 EP - 538 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - high-resolution methods KW - imagery KW - volcanic rocks KW - glasses KW - Moon KW - igneous rocks KW - data processing KW - electron probe data KW - computer programs KW - lunar samples KW - SEM data KW - regolith KW - backscattering KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50421679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Measuring+glass+abundances+in+lunar+agglutinates&rft.au=Strait%2C+M+M%3BBasu%2C+A%3BMcKay%2C+D+S%3BRobinson%2C+R&rft.aulast=Strait&rft.aufirst=M&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=537&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - backscattering; computer programs; data processing; electron probe data; glasses; high-resolution methods; igneous rocks; imagery; lunar samples; Moon; regolith; SEM data; volcanic rocks ER - TY - JOUR T1 - The nature of carbon-bearing phases in hydrated interplanetary dust particles AN - 50421663; 2009-054563 JF - Meteoritics AU - Keller, L P AU - Thomas, K L AU - McKay, D S A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 480 EP - 481 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - methods KW - hydration KW - graphite KW - concentration KW - cosmic dust KW - carbon KW - native elements KW - carbonates KW - TEM data KW - particles KW - energy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50421663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=The+nature+of+carbon-bearing+phases+in+hydrated+interplanetary+dust+particles&rft.au=Keller%2C+L+P%3BThomas%2C+K+L%3BMcKay%2C+D+S&rft.aulast=Keller&rft.aufirst=L&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=480&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 2 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - carbon; carbonates; concentration; cosmic dust; energy; graphite; hydration; methods; native elements; particles; TEM data ER - TY - JOUR T1 - The contribution of vapor deposition to amorphous rims on lunar soil grains AN - 50421641; 2009-054562 JF - Meteoritics AU - Keller, L P AU - McKay, D S A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 480 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - mineral composition KW - Moon KW - grains KW - amorphous materials KW - spectra KW - chemical composition KW - X-ray spectra KW - TEM data KW - lunar soils KW - gases KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50421641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=The+contribution+of+vapor+deposition+to+amorphous+rims+on+lunar+soil+grains&rft.au=Keller%2C+L+P%3BMcKay%2C+D+S&rft.aulast=Keller&rft.aufirst=L&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=480&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 2 N1 - PubXState - AR N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - amorphous materials; chemical composition; gases; grains; lunar soils; mineral composition; Moon; spectra; TEM data; X-ray spectra ER - TY - JOUR T1 - A phyllosilicate-sulphide vein in Kaidun AN - 50421273; 2009-054556 JF - Meteoritics AU - Ivanov, A AU - Zolensky, M E AU - Brandstaetter, F AU - Kurat, G AU - Kononkova, N N A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 477 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - serpentine KW - alteration KW - serpentinization KW - stony meteorites KW - carbonaceous chondrites KW - veins KW - metasomatism KW - meteorites KW - Kaidun Meteorite KW - mineral composition KW - serpentine group KW - sheet silicates KW - chondrites KW - sulfides KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50421273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=A+phyllosilicate-sulphide+vein+in+Kaidun&rft.au=Ivanov%2C+A%3BZolensky%2C+M+E%3BBrandstaetter%2C+F%3BKurat%2C+G%3BKononkova%2C+N+N&rft.aulast=Ivanov&rft.aufirst=A&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=477&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alteration; carbonaceous chondrites; chondrites; Kaidun Meteorite; metasomatism; meteorites; mineral composition; serpentine; serpentine group; serpentinization; sheet silicates; silicates; stony meteorites; sulfides; veins ER - TY - JOUR T1 - Formation of thin sulfide rinds on the CM parent body AN - 50420952; 2009-054504 JF - Meteoritics AU - Browning, L B AU - McSween, H Y, Jr AU - Zolensky, M A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 450 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - alteration KW - stony meteorites KW - textures KW - parent bodies KW - weathering rinds KW - olivine group KW - carbonaceous chondrites KW - nesosilicates KW - models KW - provenance KW - meteorites KW - chondrules KW - olivine KW - orthosilicates KW - sulfur KW - CM chondrites KW - chondrites KW - sulfides KW - pH 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/50420952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Formation+of+thin+sulfide+rinds+on+the+CM+parent+body&rft.au=Browning%2C+L+B%3BMcSween%2C+H+Y%2C+Jr%3BZolensky%2C+M&rft.aulast=Browning&rft.aufirst=L&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=450&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alteration; carbonaceous chondrites; chondrites; chondrules; CM chondrites; meteorites; models; nesosilicates; olivine; olivine group; orthosilicates; parent bodies; pH; provenance; silicates; stony meteorites; sulfides; sulfur; textures; weathering rinds ER - TY - JOUR T1 - CM chondrites exhibit the complete petrologic range form type 2 to 1 AN - 50420752; 2009-054713 JF - Meteoritics AU - Zolensky, M E AU - Browning, L B A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 556 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - serpentine KW - alteration KW - stony meteorites KW - olivine group KW - temperature KW - dolomite KW - meteorites KW - mineral composition KW - serpentine group KW - olivine KW - orthosilicates KW - oxides KW - chondrites KW - pyrrhotite KW - concentration KW - parent bodies KW - oxidation KW - carbonaceous chondrites KW - calcite KW - nesosilicates KW - sheet silicates KW - CM chondrites KW - leaching KW - sulfides KW - carbonates KW - high temperature KW - magnetite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50420752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=CM+chondrites+exhibit+the+complete+petrologic+range+form+type+2+to+1&rft.au=Zolensky%2C+M+E%3BBrowning%2C+L+B&rft.aulast=Zolensky&rft.aufirst=M&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=556&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alteration; calcite; carbonaceous chondrites; carbonates; chondrites; CM chondrites; concentration; dolomite; high temperature; leaching; magnetite; meteorites; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; oxidation; oxides; parent bodies; pyrrhotite; serpentine; serpentine group; sheet silicates; silicates; stony meteorites; sulfides; temperature ER - TY - JOUR T1 - Carbonates in the Kaidun Chondrite AN - 50420462; 2009-054700 JF - Meteoritics AU - Weisberg, M K AU - Prinz, M AU - Zolensky, M E AU - Ivanov, A V A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 549 EP - 550 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - alteration KW - stony meteorites KW - carbonaceous chondrites KW - metasomatism KW - temperature KW - calcite KW - dolomite KW - meteorites KW - Kaidun Meteorite KW - CR chondrites KW - inclusions KW - oxides KW - hydrothermal alteration KW - chondrites KW - chemical composition KW - sulfides KW - carbonates KW - magnetite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50420462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Carbonates+in+the+Kaidun+Chondrite&rft.au=Weisberg%2C+M+K%3BPrinz%2C+M%3BZolensky%2C+M+E%3BIvanov%2C+A+V&rft.aulast=Weisberg&rft.aufirst=M&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=549&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alteration; calcite; carbonaceous chondrites; carbonates; chemical composition; chondrites; CR chondrites; dolomite; hydrothermal alteration; inclusions; Kaidun Meteorite; magnetite; metasomatism; meteorites; oxides; stony meteorites; sulfides; temperature ER - TY - JOUR T1 - Shock recovery analogs and the origin of mesosiderites AN - 50419974; 2009-054647 JF - Meteoritics AU - Rowan, L R A2 - Sears, Derek W. G. Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 524 PB - Meteoritical Society, Fayetteville, AR VL - 29 IS - 4 SN - 0026-1114, 0026-1114 KW - stony irons KW - silicates KW - igneous rocks KW - recrystallization KW - metamorphism KW - temperature KW - meteorites KW - plutonic rocks KW - melting KW - metals KW - mesosiderite KW - gabbros KW - heterogeneity KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50419974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Shock+recovery+analogs+and+the+origin+of+mesosiderites&rft.au=Rowan%2C+L+R&rft.aulast=Rowan&rft.aufirst=L&rft.date=1994-07-01&rft.volume=29&rft.issue=4&rft.spage=524&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 57th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - gabbros; heterogeneity; igneous rocks; melting; mesosiderite; metals; metamorphism; meteorites; plutonic rocks; recrystallization; shock metamorphism; silicates; stony irons; temperature ER - TY - JOUR T1 - Journal of Geology AN - 50241503; 1994-038854 AB - The purpose of this discussion is to review some of the evidence indicating that in the Karoo (Gondwana) Basin of South Africa, (a) the Dwyka Formation is predominantly of glacial origin, and (b) the Cape fold belt cannot be the result of a single bolide impact. Following the presentation of half a dozen elements of this evidence, the conclusion is reached that the field evidence indicating a glacial origin for the Dwyka Formation and a tectonic origin for the Cape fold belt is overwhelming, so until some real evidence for bolide impacts emerges, the hypotheses proposed by Oberbeck et al. (1993) will remain pure speculation. JF - Journal of Geology AU - le Roux, J P AU - Oberbeck, V R AU - Hoerz, F AU - Bunch, T Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 483 EP - 489 PB - University of Chicago Press, Chicago, IL VL - 102 IS - 4 SN - 0022-1376, 0022-1376 KW - United States KW - Dwyka Formation KW - fold belts KW - Europe KW - sedimentary rocks KW - diamictite KW - upper Paleozoic KW - Central Europe KW - Gondwana KW - tectonics KW - South Africa KW - interpretation KW - Bavaria Germany KW - Paleozoic KW - Cape fold belt KW - KwaZulu-Natal South Africa KW - tillite KW - impacts KW - metamorphism KW - continental drift KW - ancient ice ages KW - Southern Africa KW - Ries Crater KW - Africa KW - Utah KW - Germany KW - clastic rocks KW - shock metamorphism KW - 06A:Sedimentary petrology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50241503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geology&rft.atitle=Journal+of+Geology&rft.au=le+Roux%2C+J+P%3BOberbeck%2C+V+R%3BHoerz%2C+F%3BBunch%2C+T&rft.aulast=le+Roux&rft.aufirst=J&rft.date=1994-07-01&rft.volume=102&rft.issue=4&rft.spage=483&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geology&rft.issn=00221376&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1994-01-01 N1 - Number of references - 53 N1 - PubXState - IL N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - For reference to original see Oberbeck, V. R., et al., J. Geol., Vol. 101, p. 1, 1993; for reference to prior discussion and reply see Young, G. M., Vol. 101, p. 675, and Oberbeck, V. R., et al., p. 679, 1993 N1 - Last updated - 2014-03-14 N1 - CODEN - JGEOAZ N1 - SubjectsTermNotLitGenreText - Africa; ancient ice ages; Bavaria Germany; Cape fold belt; Central Europe; clastic rocks; continental drift; diamictite; Dwyka Formation; Europe; fold belts; Germany; Gondwana; impacts; interpretation; KwaZulu-Natal South Africa; metamorphism; Paleozoic; Ries Crater; sedimentary rocks; shock metamorphism; South Africa; Southern Africa; tectonics; tillite; United States; upper Paleozoic; Utah ER - TY - JOUR T1 - Man-made lakes and sea-level rise; discussions and reply AN - 50240637; 1994-038685 JF - Nature (London) AU - Chao, Benjamin Fong AU - Rodenburg, Eric AU - Sahagian, D L AU - Jacobs, D K AU - Schwartz, F W Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 258 PB - Macmillan Journals, London VL - 370 IS - 6487 SN - 0028-0836, 0028-0836 KW - water storage KW - reservoirs KW - human activity KW - changes of level KW - 07:Oceanography KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50240637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Man-made+lakes+and+sea-level+rise%3B+discussions+and+reply&rft.au=Chao%2C+Benjamin+Fong%3BRodenburg%2C+Eric%3BSahagian%2C+D+L%3BJacobs%2C+D+K%3BSchwartz%2C+F+W&rft.aulast=Chao&rft.aufirst=Benjamin&rft.date=1994-07-01&rft.volume=370&rft.issue=6487&rft.spage=258&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 - 1994-01-01 N1 - Number of references - 10 N1 - SuppNotes - For reference to original see Sahagian, D. L., et al., Nature, Vol. 367, p. 54, 1994 N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - changes of level; human activity; reservoirs; water storage ER - TY - JOUR T1 - Fullerenes in the 1.85-billion year-old Sudbury impact structure AN - 50232996; 1994-040906 JF - Science AU - Becker, Luann AU - Bada, Jeffrey L AU - Winans, Randall E AU - Hunt, Jerry E AU - Bunch, Ted E AU - French, Bevan M Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 642 EP - 645 PB - American Association for the Advancement of Science, Washington, DC VL - 265 IS - 5172 SN - 0036-8075, 0036-8075 KW - upper Precambrian KW - laser methods KW - impact features KW - mass spectra KW - C-70 KW - sedimentary rocks KW - fullerene KW - carbon KW - basins KW - spectra KW - Onaping Formation KW - breccia KW - Sudbury Basin KW - Precambrian KW - paleoatmosphere KW - Proterozoic KW - C-60 KW - native elements KW - metamorphism KW - Ontario KW - Canada KW - identification KW - sulfur KW - Huronian KW - Eastern Canada KW - clastic rocks KW - shock metamorphism KW - 02C:Geochemistry of rocks, soils, and sediments KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50232996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Fullerenes+in+the+1.85-billion+year-old+Sudbury+impact+structure&rft.au=Becker%2C+Luann%3BBada%2C+Jeffrey+L%3BWinans%2C+Randall+E%3BHunt%2C+Jerry+E%3BBunch%2C+Ted+E%3BFrench%2C+Bevan+M&rft.aulast=Becker&rft.aufirst=Luann&rft.date=1994-07-01&rft.volume=265&rft.issue=5172&rft.spage=642&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 39 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - basins; breccia; C-60; C-70; Canada; carbon; clastic rocks; Eastern Canada; fullerene; Huronian; identification; impact features; laser methods; mass spectra; metamorphism; native elements; Onaping Formation; Ontario; paleoatmosphere; Precambrian; Proterozoic; sedimentary rocks; shock metamorphism; spectra; Sudbury Basin; sulfur; upper Precambrian ER - TY - JOUR T1 - K-Ca and Rb-Sr dating of two lunar granites; relative chronometer resetting AN - 50231483; 1994-041550 AB - K-Ca and Rb-Sr isotopic analyses are presented of granite sample 12033,576 and Rb-Sr isotopic data for sample 14303,206. Assuming that the first granite sample crystallized approximately 4000 m.y. ago (model formation age) and was shock-heated 800 m.y. ago, the intermediate Rb-Sr and K-Ca ages are perhaps due to partial resetting by thermal diffusion of Sr and Ca. Diffusion data indicate that isotopic exchange of Ca and Sr was responsible for the partial resetting of the K-Ca and Rb-Sr chronometers. The Rb-Sr isotopic data for the second granite sample are comparable to the previously determined age of 4040 + or - 640 m.y. Model ages are within an error of a reported zircon U-Pb age of 4310 m.y.; it is assumed that this granite clast crystallized approximately 4300 m.y. ago and was shock-heated approximately 3830 m.y. ago. JF - Geochimica et Cosmochimica Acta AU - Shih, C Y AU - Nyquist, L E AU - Bogard, D D AU - Wiesmann, H Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 3101 EP - 3116 PB - Pergamon, Oxford VL - 58 IS - 14 SN - 0016-7037, 0016-7037 KW - calcium KW - magmatic differentiation KW - alkaline earth metals KW - Moon KW - isotopes KW - K/Ca KW - isotope ratios KW - igneous rocks KW - granites KW - alkali metals KW - stable isotopes KW - Rb/Sr KW - Sr-87/Sr-86 KW - lunar samples KW - Ca-44/Ca-40 KW - plutonic rocks KW - Head Crater KW - Ca-44/Ca-42 KW - metals KW - magmas KW - potassium KW - strontium KW - diffusivity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50231483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=K-Ca+and+Rb-Sr+dating+of+two+lunar+granites%3B+relative+chronometer+resetting&rft.au=Shih%2C+C+Y%3BNyquist%2C+L+E%3BBogard%2C+D+D%3BWiesmann%2C+H&rft.aulast=Shih&rft.aufirst=C&rft.date=1994-07-01&rft.volume=58&rft.issue=14&rft.spage=3101&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990182-1 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 - 1994-01-01 N1 - Number of references - 54 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; Ca-44/Ca-40; Ca-44/Ca-42; calcium; diffusivity; granites; Head Crater; igneous rocks; isotope ratios; isotopes; K/Ca; lunar samples; magmas; magmatic differentiation; metals; Moon; plutonic rocks; potassium; Rb/Sr; Sr-87/Sr-86; stable isotopes; strontium DO - http://dx.doi.org/10.1016/0016-7037(94)90182-1 ER - TY - JOUR T1 - (super 39) Ar- (super 40) Ar dating of two lunar granites; the age of Copernicus AN - 50226662; 1994-041549 AB - The first (super 39) Ar- (super 40) Ar age of granitic clast 14303,204 reported is in the range 3800-3850 m.y. and agrees with Ar isotopic ages for other lunar granites; it probably represents resetting by a large impact, perhaps Imbrium. A core of granitic composition in soil fragment 12033,507 shows almost complete resetting at 800 + or - 15 m.y. ago indicating the age of formation of Copernicus. Cosmic ray exposure ages of this granite and associated KREEP glass ( approximately 250 m.y. -- much less than the Ar isotopic age) indicate a complex post-injection burial history. JF - Geochimica et Cosmochimica Acta AU - Bogard, D D AU - Garrison, D H AU - Shih, C Y AU - Nyquist, L E Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 3093 EP - 3100 PB - Pergamon, Oxford VL - 58 IS - 14 SN - 0016-7037, 0016-7037 KW - Ar/Ar KW - Moon KW - isotopes KW - isotope ratios KW - igneous rocks KW - granites KW - Apollo Program KW - stable isotopes KW - lunar craters KW - argon KW - Ar-40/Ar-39 KW - lunar samples KW - radioactive isotopes KW - plutonic rocks KW - dates KW - noble gases KW - absolute age KW - Copernicus KW - Apollo 12 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50226662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=%28super+39%29+Ar-+%28super+40%29+Ar+dating+of+two+lunar+granites%3B+the+age+of+Copernicus&rft.au=Bogard%2C+D+D%3BGarrison%2C+D+H%3BShih%2C+C+Y%3BNyquist%2C+L+E&rft.aulast=Bogard&rft.aufirst=D&rft.date=1994-07-01&rft.volume=58&rft.issue=14&rft.spage=3093&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990181-3 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 - 1994-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; Apollo 12; Apollo Program; Ar-40/Ar-39; Ar/Ar; argon; Copernicus; dates; granites; igneous rocks; isotope ratios; isotopes; lunar craters; lunar samples; Moon; noble gases; plutonic rocks; radioactive isotopes; stable isotopes DO - http://dx.doi.org/10.1016/0016-7037(94)90181-3 ER - TY - JOUR T1 - Carbon isotopic fractionation in lipids from methanotrophic bacteria; relevance for interpretation of the geochemical record of biomarkers AN - 50215958; 1994-046410 AB - The (super 13) C isotopic fractionation of Methyloccus capsulatus grown in culture varies according to the stage of growth, due apparently to changes in nature and/or activity of different forms of methane monooxygenase enzyme. Growth on methanol was accompanied by reduced fractionation. An additional 2-40/00 C isotopic fractionation occurs in the total lipid fraction of methanotrophs, and metabolites were depleted by 100/00 compared to whole biomass. Details of (super 13) C fractionation in cultures are discussed. The results have significant implications for the interpretation of specific compound isotopic signatures for hydrocarbons and other lipids in sediments and petroleum. Biomarker lipids produced by a single organism may not have the same C isotopic compositions. JF - Geochimica et Cosmochimica Acta AU - Summons, Roger E AU - Jahnke, Linda L AU - Roksandic, Zarko Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 2853 EP - 2863 PB - Pergamon, Oxford VL - 58 IS - 13 SN - 0016-7037, 0016-7037 KW - thallophytes KW - organic materials KW - Plantae KW - methane KW - fatty acids KW - lipids KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - aliphatic hydrocarbons KW - alkanes KW - biomarkers KW - stable isotopes KW - C-14/C-12 KW - organic compounds KW - organic acids KW - radioactive isotopes KW - carbon KW - bacteria KW - hydrocarbons KW - geochemistry KW - fractionation KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50215958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Carbon+isotopic+fractionation+in+lipids+from+methanotrophic+bacteria%3B+relevance+for+interpretation+of+the+geochemical+record+of+biomarkers&rft.au=Summons%2C+Roger+E%3BJahnke%2C+Linda+L%3BRoksandic%2C+Zarko&rft.aulast=Summons&rft.aufirst=Roger&rft.date=1994-07-01&rft.volume=58&rft.issue=13&rft.spage=2853&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990119-8 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 - 1994-01-01 N1 - Number of references - 54 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; bacteria; biomarkers; C-13/C-12; C-14/C-12; carbon; fatty acids; fractionation; geochemistry; hydrocarbons; isotope ratios; isotopes; lipids; methane; organic acids; organic compounds; organic materials; Plantae; radioactive isotopes; stable isotopes; thallophytes DO - http://dx.doi.org/10.1016/0016-7037(94)90119-8 ER - TY - JOUR T1 - Experimental partitioning of rare earth elements and strontium; constraints on petrogenesis and redox conditions during crystallization of Antarctic angrite Lewis Cliff 86010 AN - 50213142; 1994-046415 AB - The partitioning of REE and Sr among anorthite, fassaitic pyroxene, and synthetic melts similar in bulk composition to antarctic angrite LEW 86010 was studied experimentally at 1 atm and 1175-1210 C using the percent level doping technique. Most experiments were at an oxygen fugacity 1 log unit above the iron-wuestite buffer, but Eu and Gd partitioning were studied from iron-wuestite to just above quartz-fayalite-magnetite. Pyroxene partition coefficients are correlated with Al content of the pyroxene. Despite the fassaitic nature of the synthetic pyroxenes, partition coefficients are not dramatically different from those for diopside. Parent melts calculated by inverting natural pyroxene and anorthite cores from LEW 86010 using partition coefficients from this study are in excellent agreement with one another. This agreement is strong evidence for equilibrium between the natural mineral cores at the time the meteorite crystallized, and lack of subsequent subsolidus diffusive modification of REE abundances in the cores. The overall levels of the computed REE patterns agree well with REE abundances in bulk samples of LEW 86010, supporting the idea that this sample formed through a process approximately closed-system fractional crystallization. Results indicate crystallization at about 1 log unit above iron-wuestite, considerably more oxidizing than conditions under which common basaltic achondrites such as eucrites are thought to have formed. (Auth. mod.) JF - Geochimica et Cosmochimica Acta AU - McKay, Gordon AU - Le, Loan AU - Wagstaff, Jerry AU - Crozaz, Ghislaine Y1 - 1994/07// PY - 1994 DA - July 1994 SP - 2911 EP - 2919 PB - Pergamon, Oxford VL - 58 IS - 13 SN - 0016-7037, 0016-7037 KW - alkaline earth metals KW - stony meteorites KW - oxygen KW - Lewis Cliff Meteorites KW - LEW 86010 KW - angrite KW - achondrites KW - fugacity KW - partitioning KW - meteorites KW - gadolinium KW - Antarctica KW - metals KW - crystallization KW - rare earths KW - europium KW - trace elements KW - strontium KW - Eh KW - P-T conditions 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/50213142?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Experimental+partitioning+of+rare+earth+elements+and+strontium%3B+constraints+on+petrogenesis+and+redox+conditions+during+crystallization+of+Antarctic+angrite+Lewis+Cliff+86010&rft.au=McKay%2C+Gordon%3BLe%2C+Loan%3BWagstaff%2C+Jerry%3BCrozaz%2C+Ghislaine&rft.aulast=McKay&rft.aufirst=Gordon&rft.date=1994-07-01&rft.volume=58&rft.issue=13&rft.spage=2911&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990124-4 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1994-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; angrite; Antarctica; crystallization; Eh; europium; fugacity; gadolinium; LEW 86010; Lewis Cliff Meteorites; metals; meteorites; oxygen; P-T conditions; partitioning; rare earths; stony meteorites; strontium; trace elements DO - http://dx.doi.org/10.1016/0016-7037(94)90124-4 ER - TY - JOUR T1 - Genetic approaches to auxin action. AN - 77107396; 11541116 AB - Answers to long-standing questions concerning the molecular mechanism of auxin action and auxin's exact functions in plant growth and development are beginning to be uncovered through studies using mutant and transgenic plants. We review recent work in this area in vascular plants. A number of conclusions can be drawn from these studies. First, auxin appears essential for cell division and viability, as auxin auxotrophs isolated in tissue culture are dependent on auxin for growth and cannot be regenerated into plants even when auxin is supplied exogenously. Secondly, plants with transgenes that alter auxin levels are able to regulate cellular auxin concentrations by synthesis and conjugation; wild-type plants are probably also capable of such regulation. Thirdly, the phenotypes of transgenic plants with altered auxin levels and of mutant plants with altered sensitivity to auxin confirm earlier physiological studies which indicated a role for auxin in regulation of apical dominance, in development of roots and vascular tissue, and in the gravitropic response. Finally, the cloning of a mutationally identified gene important for auxin action, along with accumulating biochemical evidence, hints at a major role for protein degradation in the auxin response pathway. JF - Plant, cell & environment AU - Hobbie, L AU - Estelle, M AD - Department of Biology, Indiana University, Bloomington 47405, USA. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 525 EP - 540 VL - 17 IS - 6 SN - 0140-7791, 0140-7791 KW - Indoleacetic Acids KW - 0 KW - Plant Growth Regulators KW - indoleacetic acid KW - 6U1S09C61L KW - Space life sciences KW - Plants, Toxic KW - Phenotype KW - Arabidopsis -- genetics KW - Arabidopsis -- metabolism KW - Tobacco -- metabolism KW - Tobacco -- genetics KW - Mutation KW - Plant Growth Regulators -- biosynthesis KW - Indoleacetic Acids -- metabolism KW - Plants, Genetically Modified -- genetics KW - Plant Growth Regulators -- metabolism KW - Genes, Plant KW - Plants, Genetically Modified -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77107396?accountid=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=Plant%2C+cell+%26+environment&rft.atitle=Genetic+approaches+to+auxin+action.&rft.au=Hobbie%2C+L%3BEstelle%2C+M&rft.aulast=Hobbie&rft.aufirst=L&rft.date=1994-06-01&rft.volume=17&rft.issue=6&rft.spage=525&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 completed - 1998-10-18 N1 - Date created - 1998-10-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Fatigue in operational settings: examples from the aviation environment. AN - 76671410; 8070796 AB - The need for 24-h operations creates nonstandard and altered work schedules that can lead to cumulative sleep loss and circadian disruption. These factors can lead to fatigue and sleepiness and affect performance and productivity on the job. The approach, research, and results of the NASA Ames Fatigue Countermeasures Program are described to illustrate one attempt to address these issues in the aviation environment. The scientific and operational relevance of these factors is discussed, and provocative issues for future research are presented. JF - Human factors AU - Rosekind, M R AU - Gander, P H AU - Miller, D L AU - Gregory, K B AU - Smith, R M AU - Weldon, K J AU - Co, E L AU - McNally, K L AU - Lebacqz, J V AD - NASA Ames Research Center, Moffett Field, CA 94035-1000. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 327 EP - 338 VL - 36 IS - 2 SN - 0018-7208, 0018-7208 KW - Index Medicus KW - Space life sciences KW - Circadian Rhythm -- physiology KW - Sleep Deprivation -- physiology KW - Humans KW - Task Performance and Analysis KW - Fatigue -- prevention & control KW - Work Schedule Tolerance -- physiology KW - Occupational Diseases -- prevention & control KW - Occupational Diseases -- etiology KW - Aerospace Medicine KW - Fatigue -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76671410?accountid=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+factors&rft.atitle=Fatigue+in+operational+settings%3A+examples+from+the+aviation+environment.&rft.au=Rosekind%2C+M+R%3BGander%2C+P+H%3BMiller%2C+D+L%3BGregory%2C+K+B%3BSmith%2C+R+M%3BWeldon%2C+K+J%3BCo%2C+E+L%3BMcNally%2C+K+L%3BLebacqz%2C+J+V&rft.aulast=Rosekind&rft.aufirst=M&rft.date=1994-06-01&rft.volume=36&rft.issue=2&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Human+factors&rft.issn=00187208&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1994-09-29 N1 - Date created - 1994-09-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - [Induction of gene expression of cancer-related genes by environmental stresses]. AN - 76306173; 11542736 AB - Many environmental elements induce the stress response in organisms. In order to examine whether the space condition brings cancer causing on mammals, we propose the importance of the study about the effects of various environmental stresses on the gene expression of oncogenes and tumor-suppressor genes. Then we reviewed numerous findings about the induction of gene expression by environmental stresses. Many investigators have reported that three oncogenes of c-fos, c-jun and c-myc, so called "Early Response Genes", were induced at transcriptional level by a diverse set of stresses such as heat, UV and ionizing radiation, and that the accumulation of the product of a tumor-suppressor gene, p53 was induced at post-translational level by the same stresses. JF - Uchu Seibutsu Kagaku AU - Matsumoto, H AU - Ohnishi, T AD - Department of Anatomy, Nara Medical University. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 94 EP - 102 VL - 8 IS - 2 SN - 0914-9201, 0914-9201 KW - Proto-Oncogene Proteins c-fos KW - 0 KW - Proto-Oncogene Proteins c-jun KW - Proto-Oncogene Proteins c-myc KW - Space life sciences KW - Animals KW - Proto-Oncogene Proteins c-fos -- genetics KW - Space Flight KW - Genes, p53 -- genetics KW - Proto-Oncogene Proteins c-myc -- genetics KW - Proto-Oncogene Proteins c-jun -- genetics KW - Environmental Exposure KW - Gene Expression Regulation KW - Stress, Physiological UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76306173?accountid=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=Uchu+Seibutsu+Kagaku&rft.atitle=%5BInduction+of+gene+expression+of+cancer-related+genes+by+environmental+stresses%5D.&rft.au=Matsumoto%2C+H%3BOhnishi%2C+T&rft.aulast=Matsumoto&rft.aufirst=H&rft.date=1994-06-01&rft.volume=8&rft.issue=2&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Uchu+Seibutsu+Kagaku&rft.issn=09149201&rft_id=info:doi/ LA - Japanese DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-08 N1 - Date created - 2000-04-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Double layer hydroxide minerals as host structures for bioorganic molecules AN - 742928790; 2010-062647 JF - Origins of Life and Evolution of the Biosphere AU - Lee, Ton AU - Arrhenius, Meichia L AU - Hui, Stella S Y AU - Ring, Ken M AU - Gedulin, Benjamin I AU - Orgel, Leslie E AU - Arrhenius, Gustaf A2 - Ferris, James P. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 336 PB - Springer, Dordrecht VL - 24 IS - 2-4 SN - 0169-6149, 0169-6149 KW - molecular structure KW - hydroxides KW - sorption KW - chemical reactions KW - biochemistry KW - oxides KW - biologic evolution KW - phosphates KW - life origin KW - layered materials KW - 08:General paleontology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742928790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=Double+layer+hydroxide+minerals+as+host+structures+for+bioorganic+molecules&rft.au=Lee%2C+Ton%3BArrhenius%2C+Meichia+L%3BHui%2C+Stella+S+Y%3BRing%2C+Ken+M%3BGedulin%2C+Benjamin+I%3BOrgel%2C+Leslie+E%3BArrhenius%2C+Gustaf&rft.aulast=Lee&rft.aufirst=Ton&rft.date=1994-06-01&rft.volume=24&rft.issue=2-4&rft.spage=336&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Conference title - ISSOL, seventh meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 3 N1 - Last updated - 2012-06-07 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - biochemistry; biologic evolution; chemical reactions; hydroxides; layered materials; life origin; molecular structure; oxides; phosphates; sorption ER - TY - JOUR T1 - Computer simulation of astrophysical ices AN - 742928402; 2010-062611 JF - Origins of Life and Evolution of the Biosphere AU - Wilson, M A AU - Pohorille, A A2 - Ferris, James P. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 115 EP - 116 PB - Springer, Dordrecht VL - 24 IS - 2-4 SN - 0169-6149, 0169-6149 KW - water KW - solar system KW - methane KW - Earth KW - amorphous materials KW - aliphatic hydrocarbons KW - water vapor KW - cosmochemistry KW - alkanes KW - simulation KW - life origin KW - genesis KW - carbon monoxide KW - organic compounds KW - comets KW - noble gases KW - neon KW - ice KW - hydrocarbons KW - composition KW - 02B:Hydrochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742928402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=Computer+simulation+of+astrophysical+ices&rft.au=Wilson%2C+M+A%3BPohorille%2C+A&rft.aulast=Wilson&rft.aufirst=M&rft.date=1994-06-01&rft.volume=24&rft.issue=2-4&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Conference title - ISSOL, seventh meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; amorphous materials; carbon monoxide; comets; composition; cosmochemistry; Earth; genesis; hydrocarbons; ice; life origin; methane; neon; noble gases; organic compounds; simulation; solar system; water; water vapor ER - TY - JOUR T1 - The Strecker synthesis from interstellar precursors as a source of amino acids in carbonaceous chondrites; deuterium retention during synthesis AN - 742925232; 2010-062610 JF - Origins of Life and Evolution of the Biosphere AU - Lerner, N R AU - Peterson, E AU - Chang, S A2 - Ferris, James P. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 113 EP - 114 PB - Springer, Dordrecht VL - 24 IS - 2-4 SN - 0169-6149, 0169-6149 KW - acetone KW - stony meteorites KW - isotopes KW - acetaldehyde KW - CV chondrites KW - imino diacids KW - stable isotopes KW - life origin KW - Murchison Meteorite KW - Allende Meteorite KW - meteorites KW - chemical reactions KW - amino acids KW - tracers KW - hydrogen cyanide KW - synthesis KW - chondrites KW - ammonia compound KW - water KW - Strecker synthesis KW - isotope ratios KW - biochemistry KW - formaldehyde KW - carbonaceous chondrites KW - organic compounds KW - organic acids KW - cosmic dust KW - D/H KW - hydrogen KW - CM chondrites KW - ketones KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742925232?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=The+Strecker+synthesis+from+interstellar+precursors+as+a+source+of+amino+acids+in+carbonaceous+chondrites%3B+deuterium+retention+during+synthesis&rft.au=Lerner%2C+N+R%3BPeterson%2C+E%3BChang%2C+S&rft.aulast=Lerner&rft.aufirst=N&rft.date=1994-06-01&rft.volume=24&rft.issue=2-4&rft.spage=113&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Conference title - ISSOL, seventh meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 6 N1 - Last updated - 2012-06-07 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - acetaldehyde; acetone; Allende Meteorite; amino acids; ammonia compound; biochemistry; carbonaceous chondrites; chemical reactions; chondrites; CM chondrites; cosmic dust; CV chondrites; D/H; formaldehyde; hydrogen; hydrogen cyanide; imino diacids; isotope ratios; isotopes; ketones; life origin; meteorites; Murchison Meteorite; organic acids; organic compounds; stable isotopes; stony meteorites; Strecker synthesis; synthesis; tracers; water ER - TY - JOUR T1 - Magnetite; what it reveals about the origin of the banded iron formations AN - 742923851; 2010-062632 JF - Origins of Life and Evolution of the Biosphere AU - Schwartz, D E AU - Mancinelli, Rocco L AU - White, M R A2 - Ferris, James P. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 277 EP - 278 PB - Springer, Dordrecht VL - 24 IS - 2-4 SN - 0169-6149, 0169-6149 KW - chemically precipitated rocks KW - Precambrian KW - X-ray diffraction data KW - grain size KW - atmosphere KW - biologic evolution KW - life origin KW - Ontario KW - biogenic processes KW - Aquaspirillium KW - sedimentary rocks KW - iron formations KW - Canada KW - hematite KW - oxides KW - mineral assemblages KW - Eastern Canada KW - DTA data KW - geochemistry KW - Gunflint Iron Formation KW - magnetite KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742923851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=Magnetite%3B+what+it+reveals+about+the+origin+of+the+banded+iron+formations&rft.au=Schwartz%2C+D+E%3BMancinelli%2C+Rocco+L%3BWhite%2C+M+R&rft.aulast=Schwartz&rft.aufirst=D&rft.date=1994-06-01&rft.volume=24&rft.issue=2-4&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Conference title - ISSOL, seventh meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 6 N1 - Last updated - 2012-06-07 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - Aquaspirillium; atmosphere; biogenic processes; biologic evolution; Canada; chemically precipitated rocks; DTA data; Eastern Canada; geochemistry; grain size; Gunflint Iron Formation; hematite; iron formations; life origin; magnetite; mineral assemblages; Ontario; oxides; Precambrian; sedimentary rocks; X-ray diffraction data ER - TY - JOUR T1 - The in situ exobiological investigation of the Martian surface mineralogy during unmanned missions AN - 742923790; 2010-062645 JF - Origins of Life and Evolution of the Biosphere AU - Mancinelli, Rocco L AU - White, Melisa R A2 - Ferris, James P. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 331 EP - 332 PB - Springer, Dordrecht VL - 24 IS - 2-4 SN - 0169-6149, 0169-6149 KW - clay KW - surface properties KW - differential thermal analysis KW - chemically precipitated rocks KW - chemical analysis KW - clastic sediments KW - astrobiology KW - Mars KW - biologic evolution KW - evaporites KW - life origin KW - exploration KW - terrestrial planets KW - thermal analysis KW - planets KW - gas chromatography KW - sedimentary rocks KW - mineral composition KW - sediments KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742923790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=The+in+situ+exobiological+investigation+of+the+Martian+surface+mineralogy+during+unmanned+missions&rft.au=Mancinelli%2C+Rocco+L%3BWhite%2C+Melisa+R&rft.aulast=Mancinelli&rft.aufirst=Rocco&rft.date=1994-06-01&rft.volume=24&rft.issue=2-4&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Conference title - ISSOL, seventh meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 8 N1 - Last updated - 2012-06-07 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - astrobiology; biologic evolution; chemical analysis; chemically precipitated rocks; clastic sediments; clay; differential thermal analysis; evaporites; exploration; gas chromatography; instruments; life origin; Mars; mineral composition; planets; remote sensing; sedimentary rocks; sediments; surface properties; terrestrial planets; thermal analysis ER - TY - JOUR T1 - Ammonia on the prebiotic Earth; iron(II) reduction of nitrite AN - 742923693; 2010-062606 JF - Origins of Life and Evolution of the Biosphere AU - Summers, David P AU - Chang, Sherwood A2 - Ferris, James P. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 99 EP - 100 PB - Springer, Dordrecht VL - 24 IS - 2-4 SN - 0169-6149, 0169-6149 KW - sea water KW - photochemistry KW - rates KW - biologic evolution KW - life origin KW - iron KW - nitrogen KW - ferrous iron KW - chemical reactions KW - metals KW - reduction KW - synthesis KW - kinetics KW - geochemistry KW - pH KW - nitrite ion KW - ammonia compound KW - 08:General paleontology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742923693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=Ammonia+on+the+prebiotic+Earth%3B+iron%28II%29+reduction+of+nitrite&rft.au=Summers%2C+David+P%3BChang%2C+Sherwood&rft.aulast=Summers&rft.aufirst=David&rft.date=1994-06-01&rft.volume=24&rft.issue=2-4&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Conference title - ISSOL, seventh meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 8 N1 - Last updated - 2012-06-07 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - ammonia compound; biologic evolution; chemical reactions; ferrous iron; geochemistry; iron; kinetics; life origin; metals; nitrite ion; nitrogen; pH; photochemistry; rates; reduction; sea water; synthesis ER - TY - JOUR T1 - Feasibility of an integrated X-ray instrument for Mars exobiology and geology AN - 742921500; 2010-062644 JF - Origins of Life and Evolution of the Biosphere AU - Fonda, M L AU - Schwartz, D E AU - Koppel, L N AU - Franco, E D AU - Kerner, J A A2 - Ferris, James P. Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 330 PB - Springer, Dordrecht VL - 24 IS - 2-4 SN - 0169-6149, 0169-6149 KW - surface properties KW - X-ray fluorescence KW - prototypes KW - astrobiology KW - Mars KW - biologic evolution KW - life origin KW - X-ray diffraction analysis KW - exploration KW - terrestrial planets KW - planets KW - mineral composition KW - X-ray analysis KW - chemical composition KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742921500?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=Feasibility+of+an+integrated+X-ray+instrument+for+Mars+exobiology+and+geology&rft.au=Fonda%2C+M+L%3BSchwartz%2C+D+E%3BKoppel%2C+L+N%3BFranco%2C+E+D%3BKerner%2C+J+A&rft.aulast=Fonda&rft.aufirst=M&rft.date=1994-06-01&rft.volume=24&rft.issue=2-4&rft.spage=330&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Conference title - ISSOL, seventh meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-06-07 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - astrobiology; biologic evolution; chemical composition; exploration; instruments; life origin; Mars; mineral composition; planets; prototypes; surface properties; terrestrial planets; X-ray analysis; X-ray diffraction analysis; X-ray fluorescence ER - TY - JOUR T1 - Iron alteration minerals in the visible and near-infrared spectra of low-albedo asteroids AN - 51671576; 2005-069424 JF - Icarus (Online) AU - Vilas, Faith AU - Jarvis, Kandy S AU - Gaffey, Michael J Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 274 EP - 283 PB - Elsevier VL - 109 IS - 2 SN - 1090-2643, 1090-2643 KW - silicates KW - albedo KW - solar system KW - near-infrared spectra KW - iron oxides KW - iron minerals KW - goethite KW - asteroids KW - sulfates KW - aqueous solutions KW - iron KW - infrared spectra KW - wavelength KW - jarosite KW - absorption KW - hematite KW - metals KW - oxides KW - sheet silicates KW - spectra KW - laterization KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51671576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Iron+alteration+minerals+in+the+visible+and+near-infrared+spectra+of+low-albedo+asteroids&rft.au=Vilas%2C+Faith%3BJarvis%2C+Kandy+S%3BGaffey%2C+Michael+J&rft.aulast=Vilas&rft.aufirst=Faith&rft.date=1994-06-01&rft.volume=109&rft.issue=2&rft.spage=274&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1994.1093 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absorption; albedo; aqueous solutions; asteroids; goethite; hematite; infrared spectra; iron; iron minerals; iron oxides; jarosite; laterization; metals; near-infrared spectra; oxides; sheet silicates; silicates; solar system; spectra; sulfates; wavelength DO - http://dx.doi.org/10.1006/icar.1994.1093 ER - TY - JOUR T1 - Sediment oxygen profiles in a super-oxygenated Antarctic lake AN - 51533854; 2006-078201 AB - Perennially ice-covered lakes are found in the McMurdo Dry Valleys of southern Victoria Land, Antarctica. In contrast to temperate lakes that have diurnal photic periods, Antarctic (and Arctic) lakes have a yearly photic period. An unusual feature of the Antarctic lakes is the occurrence of O (sub 2) at supersaturated levels in certain portions of the water column. Here we report the first sediment O (sub 2) profiles obtained using a microelectrode from a perennially ice-covered Antarctic lake. Sediment cores collected in January and October 1987 from Lake Hoare in Taylor Valley show oxygenation down to 15, and in some cases, 25 cm. The oxygenation of sediments several centimeters below the sediment-water interface is atypical for lake sediments and may be characteristic of perennially ice-covered lakes. There is a significant difference between the observed January and October sediment O (sub 2) profiles. Several explanations may account for the difference, including seasonality. A time-dependent model is presented which tests the feasibility of a seasonal cycle resulting from the long photoperiod and benthic primary production in sediments overlain by a highly oxygenated water column. JF - Limnology and Oceanography AU - Wharton, Robert A, Jr AU - Meyer, Michael A AU - McKay, Christopher P AU - Mancinelli, Rocco L AU - Simmons, George M, Jr Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 839 EP - 853 PB - American Society of Limnology and Oceanography, Ann Arbor, MI VL - 39 IS - 4 SN - 0024-3590, 0024-3590 KW - oxygen KW - lakes KW - solutes KW - cores KW - Taylor Valley KW - substrates KW - lake ice KW - supersaturation KW - Antarctica KW - Lake Hoare KW - ice KW - sediments KW - McMurdo dry valleys KW - lacustrine environment KW - Victoria Land KW - lake sediments KW - 21:Hydrogeology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51533854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Limnology+and+Oceanography&rft.atitle=Sediment+oxygen+profiles+in+a+super-oxygenated+Antarctic+lake&rft.au=Wharton%2C+Robert+A%2C+Jr%3BMeyer%2C+Michael+A%3BMcKay%2C+Christopher+P%3BMancinelli%2C+Rocco+L%3BSimmons%2C+George+M%2C+Jr&rft.aulast=Wharton&rft.aufirst=Robert&rft.date=1994-06-01&rft.volume=39&rft.issue=4&rft.spage=839&rft.isbn=&rft.btitle=&rft.title=Limnology+and+Oceanography&rft.issn=00243590&rft_id=info:doi/ L2 - http://aslo.org/lo/toc/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 39 N1 - PubXState - MI N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - LIOCAH N1 - SubjectsTermNotLitGenreText - Antarctica; cores; ice; lacustrine environment; Lake Hoare; lake ice; lake sediments; lakes; McMurdo dry valleys; oxygen; sediments; solutes; substrates; supersaturation; Taylor Valley; Victoria Land ER - TY - JOUR T1 - Tectonic control of the crustal organic carbon reservoir during the Precambrian AN - 50241683; 1994-035297 AB - Carbon isotopic trends indicate that the crustal reservoir of reduced, organic carbon increased during the Proterozoic, particularly during periods of widespread continental rifting and orogeny. No long-term trends are apparent in the concentration of organic carbon in shales, cherts and carbonates. The age distribution of 261 sample site localities sampled for well-preserved sedimentary rocks revealed a 500-700-Ma periodicity which coincided with tectonic cycles. It is assumed that the numbers of sites are a proxy for mass of sediments. A substantial increase in the number of sites in the late Archean correlates with the first appearance between 2.9 and 2.5 Ga of extensive continental platforms and their associated sedimentation. It is proposed that the size of the Proterozoic crustal organic carbon reservoir has been modulated by tectonic control of the volume of sediments deposited in environments favorable for the burial and preservation of organic matter. Stepwise increases in this reservoir would have caused the oxidation state of the Proterozoic environment to increase in a stepwise fashion. JF - Chemical Geology AU - Des Marais, David J A2 - Lee, Cindy Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 303 EP - 314 PB - Elsevier, Amsterdam VL - 114 IS - 3-4 SN - 0009-2541, 0009-2541 KW - isotopes KW - paleo-oceanography KW - stable isotopes KW - sedimentary rocks KW - carbon KW - organic carbon KW - organic materials KW - chemically precipitated rocks KW - Precambrian KW - rift zones KW - shale KW - isotope ratios KW - paleoatmosphere KW - oxidation KW - C-13/C-12 KW - statistical analysis KW - sedimentation KW - structural controls KW - orogeny KW - organic compounds KW - chert KW - carbonate rocks KW - clastic rocks KW - preservation KW - crust KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50241683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Tectonic+control+of+the+crustal+organic+carbon+reservoir+during+the+Precambrian&rft.au=Des+Marais%2C+David+J&rft.aulast=Des+Marais&rft.aufirst=David&rft.date=1994-06-01&rft.volume=114&rft.issue=3-4&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2F0009-2541%2894%2990060-4 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Conference title - Geological Society of America 1992 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1994-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; carbonate rocks; chemically precipitated rocks; chert; clastic rocks; crust; isotope ratios; isotopes; organic carbon; organic compounds; organic materials; orogeny; oxidation; paleo-oceanography; paleoatmosphere; Precambrian; preservation; rift zones; sedimentary rocks; sedimentation; shale; stable isotopes; statistical analysis; structural controls DO - http://dx.doi.org/10.1016/0009-2541(94)90060-4 ER - TY - JOUR T1 - Vapor deposits in the lunar regolith; discussions and reply AN - 50233662; 1994-037446 JF - Science AU - Hapke, Bruce AU - Cassidy, William AU - Wells, Eddie AU - Bernatowicz, T J AU - Nichols, R H, Jr AU - Hohenberg, C M AU - Maurette, M AU - Keller, Lindsay P AU - McKay, David S Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 1779 EP - 1780 PB - American Association for the Advancement of Science, Washington, DC VL - 264 IS - 5166 SN - 0036-8075, 0036-8075 KW - silicates KW - ilmenite KW - Moon KW - clastic sediments KW - amorphous materials KW - impacts KW - gases KW - dust KW - sediments KW - oxides KW - regolith KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50233662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Vapor+deposits+in+the+lunar+regolith%3B+discussions+and+reply&rft.au=Hapke%2C+Bruce%3BCassidy%2C+William%3BWells%2C+Eddie%3BBernatowicz%2C+T+J%3BNichols%2C+R+H%2C+Jr%3BHohenberg%2C+C+M%3BMaurette%2C+M%3BKeller%2C+Lindsay+P%3BMcKay%2C+David+S&rft.aulast=Hapke&rft.aufirst=Bruce&rft.date=1994-06-01&rft.volume=264&rft.issue=5166&rft.spage=1779&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 16 N1 - PubXState - DC N1 - Document feature - 1 table N1 - SuppNotes - For reference to original see Keller, L. P., and McKay, D. S., Science, Vol. 261, p. 1305, 1993 N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - amorphous materials; clastic sediments; dust; gases; ilmenite; impacts; lunar soils; Moon; oxides; regolith; sediments; silicates ER - TY - JOUR T1 - Climatic changes in areas adjacent to the North Atlantic during the last glacial-interglacial transition (14-9 ka BP); a contribution to IGCP-253 AN - 50219479; 1994-046587 JF - JQS. Journal of Quaternary Science AU - Lowe, J John AU - Ammann, B AU - Birks, Hilary H AU - Bjorck, Svante AU - Coope, G R AU - Cwynar, Les C AU - de Beaulieu, J L AU - Mott, R J AU - Peteet, D M AU - Walker, M J C A2 - Lowe, J. John Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 185 EP - 198 PB - John Wiley and Sons for the Quaternary Research Association, Chichester VL - 9 IS - 2 SN - 0267-8179, 0267-8179 KW - North America KW - Laurentide ice sheet KW - Quaternary KW - Europe KW - paleoclimatology KW - ice sheets KW - IGCP KW - upper Pleistocene KW - models KW - Cenozoic KW - upper Weichselian KW - Fennoscandian ice sheet KW - Weichselian KW - Polar Front KW - paleotemperature KW - Pleistocene KW - glacial geology KW - Younger Dryas KW - changes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50219479?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=JQS.+Journal+of+Quaternary+Science&rft.atitle=Climatic+changes+in+areas+adjacent+to+the+North+Atlantic+during+the+last+glacial-interglacial+transition+%2814-9+ka+BP%29%3B+a+contribution+to+IGCP-253&rft.au=Lowe%2C+J+John%3BAmmann%2C+B%3BBirks%2C+Hilary+H%3BBjorck%2C+Svante%3BCoope%2C+G+R%3BCwynar%2C+Les+C%3Bde+Beaulieu%2C+J+L%3BMott%2C+R+J%3BPeteet%2C+D+M%3BWalker%2C+M+J+C&rft.aulast=Lowe&rft.aufirst=J&rft.date=1994-06-01&rft.volume=9&rft.issue=2&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=JQS.+Journal+of+Quaternary+Science&rft.issn=02678179&rft_id=info:doi/ L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/2507 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 64 N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - IGCP Project No. 253 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cenozoic; changes; Europe; Fennoscandian ice sheet; glacial geology; ice sheets; IGCP; Laurentide ice sheet; models; North America; paleoclimatology; paleotemperature; Pleistocene; Polar Front; Quaternary; upper Pleistocene; upper Weichselian; Weichselian; Younger Dryas ER - TY - JOUR T1 - Wisconsinan late-glacial environmental change in southern New England; a regional synthesis AN - 50216141; 1994-046581 JF - JQS. Journal of Quaternary Science AU - Peteet, D M AU - Daniels, R AU - Heusser, L E AU - Vogel, J S AU - Southon, J R AU - Nelson, D E A2 - Lowe, J. John Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 151 EP - 154 PB - John Wiley and Sons for the Quaternary Research Association, Chichester VL - 9 IS - 2 SN - 0267-8179, 0267-8179 KW - United States KW - glaciation KW - isotopes KW - vegetation KW - paleoclimatology KW - deglaciation KW - Wisconsinan KW - upper Pleistocene KW - Cenozoic KW - radioactive isotopes KW - pollen KW - paleotemperature KW - carbon KW - New England KW - miospores KW - southern New England KW - Plantae KW - Quaternary KW - biostratigraphy KW - Connecticut KW - IGCP KW - New York KW - paleoenvironment KW - palynomorphs KW - Pleistocene KW - New Jersey KW - glacial geology KW - C-14 KW - Pennsylvania KW - microfossils KW - changes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50216141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=JQS.+Journal+of+Quaternary+Science&rft.atitle=Wisconsinan+late-glacial+environmental+change+in+southern+New+England%3B+a+regional+synthesis&rft.au=Peteet%2C+D+M%3BDaniels%2C+R%3BHeusser%2C+L+E%3BVogel%2C+J+S%3BSouthon%2C+J+R%3BNelson%2C+D+E&rft.aulast=Peteet&rft.aufirst=D&rft.date=1994-06-01&rft.volume=9&rft.issue=2&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=JQS.+Journal+of+Quaternary+Science&rft.issn=02678179&rft_id=info:doi/ L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/2507 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 24 N1 - Document feature - illus. N1 - SuppNotes - IGCP Project No. 253 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biostratigraphy; C-14; carbon; Cenozoic; changes; Connecticut; deglaciation; glacial geology; glaciation; IGCP; isotopes; microfossils; miospores; New England; New Jersey; New York; paleoclimatology; paleoenvironment; paleotemperature; palynomorphs; Pennsylvania; Plantae; Pleistocene; pollen; Quaternary; radioactive isotopes; southern New England; United States; upper Pleistocene; vegetation; Wisconsinan ER - TY - JOUR T1 - Evolution of Pinatubo aerosol near 19 km altitude over western North America AN - 50185754; 1995-009218 AB - Stratospheric aerosols, collected near 19 km altitude on wire impactors over western North America from August 20, 1991 to May 11, 1993, show strong influence of the June 1991 Mt. Pinatubo eruption. Lognormal size distributions are bimodal; each of the mode radii increases and reaches maximum value at about 15 months after eruption. The second (large particle) mode becomes well developed then, and about 40% of the droplets are larger than 0.4 mu m radius. The eruption of Mt. Spurr (Alaska) may also have contributed to this. Sulfate mass loading decays exponentially (e-folding 216 days), similar to El Chichon. Silicates are present in samples only immediately after eruption. Two years after eruption, sulfate mass loading is about 0.4 mu g/m (super 3) , about an order of magnitude higher than background pre-volcanic values. Aerosol size distributions are still bimodal with a very well-defined large droplet mode. JF - Geophysical Research Letters AU - Goodman, Jindra AU - Snetsinger, K G AU - Pueschel, R F AU - Ferry, G V AU - Verma, S Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 1129 EP - 1132 PB - American Geophysical Union, Washington, DC VL - 21 IS - 12 SN - 0094-8276, 0094-8276 KW - United States KW - North America KW - Luzon KW - Far East KW - western North America KW - Southern Alaska KW - stratosphere KW - Mount Spurr KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - aerosols KW - Alaska KW - Asia KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50185754?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Evolution+of+Pinatubo+aerosol+near+19+km+altitude+over+western+North+America&rft.au=Goodman%2C+Jindra%3BSnetsinger%2C+K+G%3BPueschel%2C+R+F%3BFerry%2C+G+V%3BVerma%2C+S&rft.aulast=Goodman&rft.aufirst=Jindra&rft.date=1994-06-01&rft.volume=21&rft.issue=12&rft.spage=1129&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F94GL00696 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Alaska; Asia; Far East; Luzon; Mount Pinatubo; Mount Spurr; North America; Philippine Islands; Southern Alaska; stratosphere; United States; volcanism; western North America DO - http://dx.doi.org/10.1029/94GL00696 ER - TY - JOUR T1 - Possible radio wave precursors associated with the comet Shoemaker-Levy 9/Jupiter impacts AN - 50182982; 1995-009214 AB - We suggest that prior to its impact with Jupiter, comet Shoemaker-Levy 9 will behave as an electrical generator in the Jovian magnetosphere, converting planetary rotational energy to electrical energy via a dust/plasma interaction. This electrical energy will then be deposited in the dayside auroral region where it may drive various auroral phenomena including cyclotron radio emission. Such emission could be detected by spacecraft like Ulysses and Galileo many hours prior to the actual comet impact with the upper atmosphere. We apply the theory originally developed to explain the spokes in Saturn's rings. This theory allows us to quantify the driving potential associated with the comet and, consequently, to determine the radio power created in the auroral region. We conclude that if enough fine dust is present in the cometary system, comet-induced auroral radio emissions will reach detectable levels. This emission should be observable in the dayside hemisphere about 12-24 hours prior to each fragment impact. Copyright 1994 by the American Geophysical Union. JF - Geophysical Research Letters AU - Farrell, W M AU - Kaiser, M L AU - Desch, M D AU - MacDowall, R J Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 1067 EP - 1070 PB - American Geophysical Union, Washington, DC VL - 21 IS - 11 SN - 0094-8276, 0094-8276 KW - Galileo Program KW - Jupiter KW - Shoemaker-Levy 9 Comet KW - electromagnetic waves KW - impacts KW - interplanetary dust KW - giant planets KW - planets KW - comets KW - radio-wave methods KW - radio emissions KW - outer planets KW - Ulysses Spacecraft KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Possible+radio+wave+precursors+associated+with+the+comet+Shoemaker-Levy+9%2FJupiter+impacts&rft.au=Farrell%2C+W+M%3BKaiser%2C+M+L%3BDesch%2C+M+D%3BMacDowall%2C+R+J&rft.aulast=Farrell&rft.aufirst=W&rft.date=1994-06-01&rft.volume=21&rft.issue=11&rft.spage=1067&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F94GL01066 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 7 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - comets; electromagnetic waves; Galileo Program; giant planets; impacts; interplanetary dust; Jupiter; outer planets; planets; radio emissions; radio-wave methods; Shoemaker-Levy 9 Comet; Ulysses Spacecraft DO - http://dx.doi.org/10.1029/94GL01066 ER - TY - JOUR T1 - The effect of the Mt. Pinatubo aerosol on the HNO (sub 3) column over Mauna Loa, Hawaii AN - 50181545; 1995-009210 AB - A very high resolution infrared solar spectrometer system for the Network for Detection of Stratospheric Change has been routinely operated at the Mauna Loa Observatory in Hawaii since November, 1991. Solar absorption spectra are normally taken one day a week at sunrise. We report the analysis of these spectra for the vertical column amount of nitric acid (HNO (sub 3) ) vapor. The observations began four months after the arrival of volcanic aerosols from Mt. Pinatubo over the site. Although quite variable, total HNO (sub 3) columns were initially about 7X10 (super 15) molecules/cm (super 2) and have decreased about 30% in the following two years. Copyright 1994 by the American Geophysical Union. JF - Geophysical Research Letters AU - David, Shelle J AU - Murcray, Frank J AU - Goldman, Aaron AU - Rinsland, Curtis P AU - Murcray, David G Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 1003 EP - 1006 PB - American Geophysical Union, Washington, DC VL - 21 IS - 11 SN - 0094-8276, 0094-8276 KW - United States KW - Luzon KW - nitric acid KW - Far East KW - Hawaii KW - atmosphere KW - East Pacific Ocean Islands KW - Mauna Loa KW - stratosphere KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - Oceania KW - aerosols KW - Polynesia KW - Asia KW - inorganic acids KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=The+effect+of+the+Mt.+Pinatubo+aerosol+on+the+HNO+%28sub+3%29+column+over+Mauna+Loa%2C+Hawaii&rft.au=David%2C+Shelle+J%3BMurcray%2C+Frank+J%3BGoldman%2C+Aaron%3BRinsland%2C+Curtis+P%3BMurcray%2C+David+G&rft.aulast=David&rft.aufirst=Shelle&rft.date=1994-06-01&rft.volume=21&rft.issue=11&rft.spage=1003&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F94GL00876 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; East Pacific Ocean Islands; Far East; geochemistry; Hawaii; inorganic acids; Luzon; Mauna Loa; Mount Pinatubo; nitric acid; Oceania; Philippine Islands; Polynesia; stratosphere; United States; volcanism DO - http://dx.doi.org/10.1029/94GL00876 ER - TY - JOUR T1 - Contributions of Cretaceous quiet zone natural remanent magnetization to Magsat anomalies in the Southwest Indian Ocean AN - 50176491; 1995-051239 AB - The Magsat magnetic anomalies over the Southwest Indian Ocean are modeled using a combination of induced plus viscous remanent magnetization (IM/VRM) and natural remanent magnetization (NRM). Two broad, roughly parallel, SW to NE trending triple-peaked positive anomalies dominate the region, one lying south of Africa and the other north of Antarctica. Although these anomaly peaks generally correspond with the Agulhas Plateau/Maud Rise, Mozambique Plateau/Astrid Ridge, and Madagascar Ridge/Conrad Rise conjugate pairs, the IM/VRM contribution from structural characteristics (i.e., crustal thickness) accounts for only about 20% of the anomaly amplitudes. A spatially variable but observationally constrained NRM contribution in Cretaceous Quiet Zone (KQZ) crust is required to account for the location, shape, and amplitude contrast of these anomalies. Many crustal features in the Southwest Indian Ocean near Antarctica have little geophysical data to constrain their structure but do have tectonic conjugates near Africa for which much more geophysical data are generally available. Using geophysical and geological constraints from one member to model the magnetization structure of its conjugate reproduces the observed Magsat reduced-to-pole anomalies over both structures very well. This suggests that no significant alteration in their magnetization structure has occurred since the features split. Models of these conjugate structures show that IM/VRM reproduces the Magsat anomalies associated with non-KQZ crust but that both IM/VRM and a dominant NRM component are required to explain the anomalies associated with KQZ crust. Copyright 1994 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Fullerton, Lawrence G AU - Frey, Herbert V AU - Roark, James H AU - Thomas, Herman H Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 11 EP - 11,936 PB - American Geophysical Union, Washington, DC VL - 99 IS - B6 SN - 0148-0227, 0148-0227 KW - Southern Ocean KW - Cretaceous Quiet Period KW - geophysical surveys KW - Cretaceous KW - Antarctic Ocean KW - geophysical methods KW - magnetization KW - magnetic methods KW - magnetic anomalies KW - paleomagnetism KW - Mesozoic KW - Indian Ocean KW - remanent magnetization KW - surveys KW - Magsat KW - tectonics KW - Agulhas Plateau KW - Weddell Sea KW - crust KW - Maud Rise KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50176491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Contributions+of+Cretaceous+quiet+zone+natural+remanent+magnetization+to+Magsat+anomalies+in+the+Southwest+Indian+Ocean&rft.au=Fullerton%2C+Lawrence+G%3BFrey%2C+Herbert+V%3BRoark%2C+James+H%3BThomas%2C+Herman+H&rft.aulast=Fullerton&rft.aufirst=Lawrence&rft.date=1994-06-01&rft.volume=99&rft.issue=B6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JB00645 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 87 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Agulhas Plateau; Antarctic Ocean; Cretaceous; Cretaceous Quiet Period; crust; geophysical methods; geophysical surveys; Indian Ocean; magnetic anomalies; magnetic methods; magnetization; Magsat; Maud Rise; Mesozoic; paleomagnetism; remanent magnetization; Southern Ocean; surveys; tectonics; Weddell Sea DO - http://dx.doi.org/10.1029/94JB00645 ER - TY - JOUR T1 - Relative motions in Europe studied with a geodetic VLBI network AN - 50160468; 1995-031862 JF - Geophysical Journal International AU - Zarraoa, Nestor AU - Rius, Antonio AU - Sardon, Esther AU - Ryan, James W Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 763 EP - 768 PB - Blackwell Scientific, Oxford VL - 117 IS - 3 SN - 0956-540X, 0956-540X KW - experimental studies KW - plate tectonics KW - movement KW - Europe KW - very long baseline interferometry KW - interpretation KW - geodesy KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50160468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Journal+International&rft.atitle=Relative+motions+in+Europe+studied+with+a+geodetic+VLBI+network&rft.au=Zarraoa%2C+Nestor%3BRius%2C+Antonio%3BSardon%2C+Esther%3BRyan%2C+James+W&rft.aulast=Zarraoa&rft.aufirst=Nestor&rft.date=1994-06-01&rft.volume=117&rft.issue=3&rft.spage=763&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 14 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Europe; experimental studies; geodesy; interpretation; movement; plate tectonics; very long baseline interferometry ER - TY - JOUR T1 - Potential causes for rapid climatic changes in the paleorecord AN - 50102261; 1995-067175 JF - Program and Abstracts - American Quaternary Association. Conference AU - Rind, David H AU - Anonymous Y1 - 1994/06// PY - 1994 DA - June 1994 SP - 41 PB - American Quaternary Association, Seattle, WA VL - 13 SN - 0741-059X, 0741-059X KW - hydrology KW - general circulation models KW - Quaternary KW - global change KW - paleoclimatology KW - temperature KW - carbon dioxide KW - upper Pleistocene KW - Cenozoic KW - upper Weichselian KW - North Atlantic Deep Water KW - Weichselian KW - Pleistocene KW - Younger Dryas KW - causes KW - climate KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50102261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+-+American+Quaternary+Association.+Conference&rft.atitle=Potential+causes+for+rapid+climatic+changes+in+the+paleorecord&rft.au=Rind%2C+David+H%3BAnonymous&rft.aulast=Rind&rft.aufirst=David&rft.date=1994-06-01&rft.volume=13&rft.issue=&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+American+Quaternary+Association.+Conference&rft.issn=0741059X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Quaternary Association, 13th biennial meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - WA N1 - Last updated - 2012-06-07 N1 - CODEN - AMQUAM N1 - SubjectsTermNotLitGenreText - carbon dioxide; causes; Cenozoic; climate; general circulation models; global change; hydrology; North Atlantic Deep Water; paleoclimatology; Pleistocene; Quaternary; temperature; upper Pleistocene; upper Weichselian; Weichselian; Younger Dryas ER - TY - JOUR T1 - Human cardiovascular response to sympathomimetic agents during head-down bed rest: the effect of dietary sodium. AN - 77128828; 11538781 AB - Changes in sympathoadrenal function and cardiovascular deconditioning have long been recognized as a feature of the physiological adaptation to microgravity. The deconditioning process, coupled with altered hydration status, is thought to significantly contribute to orthostatic intolerance upon return to Earth gravity. The cardiovascular response to stimulation by sympathomimetic agents before, during, and after exposure to simulated microgravity was determined in healthy volunteers equilibrated on normal or high sodium diets in order to further the understanding of the deconditioning process. JF - Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology AU - Williams, W J AU - Stuart, C A AU - Fortney, S M AU - Pietrzyk, R A AU - Chen, Y M AU - Whitson, P A AD - NASA Johnson Space Center, Houston, TX, USA. Y1 - 1994/05// PY - 1994 DA - May 1994 SP - P98 EP - P99 VL - 1 IS - 1 SN - 1077-9248, 1077-9248 KW - Sodium, Dietary KW - 0 KW - Sympathomimetics KW - Vasopressins KW - 11000-17-2 KW - Phenylephrine KW - 1WS297W6MV KW - Aldosterone KW - 4964P6T9RB KW - Atrial Natriuretic Factor KW - 85637-73-6 KW - Renin KW - EC 3.4.23.15 KW - Isoproterenol KW - L628TT009W KW - Space life sciences KW - NASA Discipline Cardiopulmonary KW - NASA Program Space Physiology and Countermeasures KW - NASA Discipline Regulatory Physiology KW - NASA Center JSC KW - NASA Discipline Number 14-10 KW - NASA Discipline Number 18-10 KW - Vasopressins -- drug effects KW - Head-Down Tilt -- physiology KW - Humans KW - Weightlessness Simulation KW - Adult KW - Middle Aged KW - Renin -- drug effects KW - Atrial Natriuretic Factor -- drug effects KW - Male KW - Isoproterenol -- pharmacology KW - Phenylephrine -- pharmacology KW - Aldosterone -- metabolism KW - Hemodynamics -- drug effects KW - Bed Rest KW - Sodium, Dietary -- adverse effects KW - Sympathomimetics -- pharmacology KW - Water-Electrolyte Balance -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77128828?accountid=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+gravitational+physiology+%3A+a+journal+of+the+International+Society+for+Gravitational+Physiology&rft.atitle=Human+cardiovascular+response+to+sympathomimetic+agents+during+head-down+bed+rest%3A+the+effect+of+dietary+sodium.&rft.au=Williams%2C+W+J%3BStuart%2C+C+A%3BFortney%2C+S+M%3BPietrzyk%2C+R+A%3BChen%2C+Y+M%3BWhitson%2C+P+A&rft.aulast=Williams&rft.aufirst=W&rft.date=1994-05-01&rft.volume=1&rft.issue=1&rft.spage=P98&rft.isbn=&rft.btitle=&rft.title=Journal+of+gravitational+physiology+%3A+a+journal+of+the+International+Society+for+Gravitational+Physiology&rft.issn=10779248&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-08-14 N1 - Date created - 1996-08-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Medical management of U.S. astronauts. AN - 76713746; 8089262 AB - The medical management of U.S. astronauts involves a comprehensive health care program and a variety of NASA and support organizations. The scope of this program includes aspects of medical monitoring and certification, health maintenance and counter-measures programs, medical intervention, psychosocial support, and environmental health monitoring. Each of these areas have activities in all mission phases preflight, inflight, and postflight. The wide range of potential health hazards from space flight mandates an aggressive health care program to maintain crew health and performance, and to prevent unwanted mission and long-term health consequences. JF - Journal of clinical pharmacology AU - Billica, R AD - Medical Operations Branch, NASA Johnson Space Center, Houston, Texas 77058. Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 510 EP - 512 VL - 34 IS - 5 SN - 0091-2700, 0091-2700 KW - Index Medicus KW - Space life sciences KW - Occupational Exposure KW - Humans KW - Aerospace Medicine KW - Preventive Medicine KW - Comprehensive Health Care KW - Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76713746?accountid=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+clinical+pharmacology&rft.atitle=Medical+management+of+U.S.+astronauts.&rft.au=Billica%2C+R&rft.aulast=Billica&rft.aufirst=R&rft.date=1994-05-01&rft.volume=34&rft.issue=5&rft.spage=510&rft.isbn=&rft.btitle=&rft.title=Journal+of+clinical+pharmacology&rft.issn=00912700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1994-10-19 N1 - Date created - 1994-10-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - An analysis of interplanetary space radiation exposure for various solar cycles. AN - 76486521; 8183990 AB - The radiation dose received by crew members in interplanetary space is influenced by the stage of the solar cycle. Using the recently developed models of the galactic cosmic radiation (GCR) environment and the energy-dependent radiation transport code, we have calculated the dose at 0 and 5 cm water depth; using a computerized anatomical man (CAM) model, we have calculated the skin, eye and blood-forming organ (BFO) doses as a function of aluminum shielding for various solar minima and maxima between 1954 and 1989. These results show that the equivalent dose is within about 15% of the mean for the various solar minima (maxima). The maximum variation between solar minimum and maximum equivalent dose is about a factor of three. We have extended these calculations for the 1976-1977 solar minimum to five practical shielding geometries: Apollo Command Module, the least and most heavily shielded locations in the U.S. space shuttle mid-deck, center of the proposed Space Station Freedom cluster and sleeping compartment of the Skylab. These calculations, using the quality factor of ICRP 60, show that the average CAM BFO equivalent dose is 0.46 Sv/year. Based on an approach that takes fragmentation into account, we estimate a calculation uncertainty of 15% if the uncertainty in the quality factor is neglected. JF - Radiation research AU - Badhwar, G D AU - Cucinotta, F A AU - O'Neill, P M AD - NASA Johnson Space Center, Houston, Texas 77058. Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 201 EP - 208 VL - 138 IS - 2 SN - 0033-7587, 0033-7587 KW - Water KW - 059QF0KO0R KW - Index Medicus KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Center JSC KW - Skin Physiological Phenomena KW - Radiation Protection KW - Humans KW - Ocular Physiological Phenomena KW - Models, Theoretical KW - Radiation Dosage KW - Cosmic Radiation KW - Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76486521?accountid=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=An+analysis+of+interplanetary+space+radiation+exposure+for+various+solar+cycles.&rft.au=Badhwar%2C+G+D%3BCucinotta%2C+F+A%3BO%27Neill%2C+P+M&rft.aulast=Badhwar&rft.aufirst=G&rft.date=1994-05-01&rft.volume=138&rft.issue=2&rft.spage=201&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 - 1994-06-14 N1 - Date created - 1994-06-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - RPRT T1 - Active synthetic soil AN - 52747952; 1997-023024 AB - A synthetic soil/fertilizer for horticultural application having all the agronutrients essential for plant growth is disclosed. The soil comprises a synthetic apatite fertilizer having sulfur, magnesium, and micronutrients dispersed in a calcium phosphate matrix, a zeolite cation exchange medium saturated with a charge of potassium and nitrogen cations, and an optional pH buffer. Moisture dissolves the apatite and mobilizes the nutrient elements from the apatite matrix and the zeolite charge sites. JF - Active synthetic soil Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 13 VL - PAT-APPL-8-243 336 KW - zeolitization KW - soils KW - fertilizers KW - alkaline earth metals KW - magnesium KW - cation exchange capacity KW - buffers KW - alkali metals KW - agriculture KW - solution KW - metasomatism KW - nitrogen KW - nutrients KW - calcium phosphate KW - metals KW - potassium KW - sulfur KW - synthetic materials KW - pH KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52747952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Active+synthetic+soil&rft.title=Active+synthetic+soil&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1997-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number N96-12233/8NEG, Springfield, VA, United States N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - 25th annual Precise time and time interval (PTTI) applications and planning meeting AN - 52631577; 1998-007781 JF - 25th annual Precise time and time interval (PTTI) applications and planning meeting AU - Sydnor, R L Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 583 VL - NAS 1.55:3267 | REPT-94B00063 KW - networks KW - Global Positioning System KW - geophysical methods KW - standardization KW - satellite methods KW - symposia KW - planning KW - navigation KW - time factor KW - applications KW - instruments KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52631577?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=Sydnor%2C+R+L&rft.aulast=Sydnor&rft.aufirst=R&rft.date=1994-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=25th+annual+Precise+time+and+time+interval+%28PTTI%29+applications+and+planning+meeting&rft.title=25th+annual+Precise+time+and+time+interval+%28PTTI%29+applications+and+planning+meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 25th annual Precise time and time interval (PTTI) applications and planning meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number N94-30639/6NEG, Springfield, VA, United States N1 - SuppNotes - Sponsored by NASA, U. S. Naval Observ., Calif. Inst. of Technol., Jet Propul. Lab., Space and Naval Warfare Syst. Command, NRL, U. S. Army Res. Lab. and AFOSR; Contract NAS5-31000 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Galileo multispectral imaging of the North Polar and eastern limb regions of the Moon AN - 51320536; 1996-000433 JF - Science AU - Belton, M J S AU - Greeley, Ronald AU - Greenberg, Richard AU - McEwen, A S AU - Klaasen, K P AU - Head, J W, III AU - Pieters, C M AU - Neukum, Gerhard AU - Chapman, C R AU - Geissler, P E AU - Heffernan, C AU - Breneman, H AU - Anger, C D AU - Carr, M H AU - Davies, M E AU - Fanale, F P AU - Gierasch, P J AU - Ingersoll, A P AU - Johnson, T V AU - Pilcher, C B AU - Thompson, W R AU - Veverka, Joseph AU - Sagan, Carl Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 1112 EP - 1115 PB - American Association for the Advancement of Science, Washington, DC VL - 264 IS - 5162 SN - 0036-8075, 0036-8075 KW - nearside KW - Humboldtianum Sea KW - surface properties KW - polar regions KW - imagery KW - impact features KW - Moon KW - Galileo Program KW - maria KW - multispectral analysis KW - Mare Imbrium KW - craters KW - lava KW - titanium KW - metals KW - composition KW - Plato Crater KW - impact craters KW - color imagery KW - remote sensing KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51320536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Galileo+multispectral+imaging+of+the+North+Polar+and+eastern+limb+regions+of+the+Moon&rft.au=Belton%2C+M+J+S%3BGreeley%2C+Ronald%3BGreenberg%2C+Richard%3BMcEwen%2C+A+S%3BKlaasen%2C+K+P%3BHead%2C+J+W%2C+III%3BPieters%2C+C+M%3BNeukum%2C+Gerhard%3BChapman%2C+C+R%3BGeissler%2C+P+E%3BHeffernan%2C+C%3BBreneman%2C+H%3BAnger%2C+C+D%3BCarr%2C+M+H%3BDavies%2C+M+E%3BFanale%2C+F+P%3BGierasch%2C+P+J%3BIngersoll%2C+A+P%3BJohnson%2C+T+V%3BPilcher%2C+C+B%3BThompson%2C+W+R%3BVeverka%2C+Joseph%3BSagan%2C+Carl&rft.aulast=Belton&rft.aufirst=M+J&rft.date=1994-05-01&rft.volume=264&rft.issue=5162&rft.spage=1112&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - color imagery; composition; craters; Galileo Program; Humboldtianum Sea; imagery; impact craters; impact features; lava; lunar soils; Mare Imbrium; maria; metals; Moon; multispectral analysis; nearside; Plato Crater; polar regions; remote sensing; surface properties; titanium ER - TY - JOUR T1 - Mercury; evidence for anorthosite and basalt from mid-infrared (7.3-13.5 mu m) spectroscopy AN - 50267078; 2005-069423 JF - Icarus (Online) AU - Sprague, A L AU - Kozlowski, R W H AU - Witteborn, F C AU - Cruikshank, D P AU - Wooden, D H Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 156 EP - 167 PB - Elsevier VL - 109 IS - 1 SN - 1090-2643, 1090-2643 KW - volcanic rocks KW - density KW - igneous rocks KW - atmosphere KW - thermal models KW - anorthosite KW - temperature KW - infrared spectra KW - wavelength KW - terrestrial planets KW - planets KW - plutonic rocks KW - Mercury Planet KW - basalts KW - planetology KW - spectra KW - Christiansen emission peak KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50267078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Mercury%3B+evidence+for+anorthosite+and+basalt+from+mid-infrared+%287.3-13.5+mu+m%29+spectroscopy&rft.au=Sprague%2C+A+L%3BKozlowski%2C+R+W+H%3BWitteborn%2C+F+C%3BCruikshank%2C+D+P%3BWooden%2C+D+H&rft.aulast=Sprague&rft.aufirst=A&rft.date=1994-05-01&rft.volume=109&rft.issue=1&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1994.1083 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anorthosite; atmosphere; basalts; Christiansen emission peak; density; igneous rocks; infrared spectra; Mercury Planet; planetology; planets; plutonic rocks; spectra; temperature; terrestrial planets; thermal models; volcanic rocks; wavelength DO - http://dx.doi.org/10.1006/icar.1994.1083 ER - TY - JOUR T1 - Diurnal and semidiurnal variations in the Earth's rotation rate induced by oceanic tides AN - 50255346; 1994-028794 JF - Science AU - Ray, R D AU - Steinberg, D J AU - Chao, B F AU - Cartwright, D E Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 830 EP - 832 PB - American Association for the Advancement of Science, Washington, DC VL - 264 IS - 5160 SN - 0036-8075, 0036-8075 KW - motions KW - theoretical studies KW - Global Positioning System KW - Earth KW - rotation KW - rates KW - laser ranging KW - diurnal variations KW - very long baseline interferometry KW - geodesy KW - satellite methods KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50255346?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Diurnal+and+semidiurnal+variations+in+the+Earth%27s+rotation+rate+induced+by+oceanic+tides&rft.au=Ray%2C+R+D%3BSteinberg%2C+D+J%3BChao%2C+B+F%3BCartwright%2C+D+E&rft.aulast=Ray&rft.aufirst=R&rft.date=1994-05-01&rft.volume=264&rft.issue=5160&rft.spage=830&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - diurnal variations; Earth; geodesy; Global Positioning System; laser ranging; motions; rates; rotation; satellite methods; theoretical studies; very long baseline interferometry ER - TY - JOUR T1 - Grain size of the surface regolith of asteroid 4 Vesta estimated from its reflectance spectrum in comparison with HED meteorites AN - 50246825; 1994-040752 JF - Meteoritics AU - Hiroi, Takahiro AU - Pieters, Carle M AU - Takeda, Hiroshi Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 394 EP - 396 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 3 SN - 0026-1114, 0026-1114 KW - meteorites KW - stony meteorites KW - asteroids KW - Vesta Asteroid KW - howardite KW - HED meteorites KW - grain size KW - eucrite KW - diogenite KW - achondrites KW - regolith KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50246825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Grain+size+of+the+surface+regolith+of+asteroid+4+Vesta+estimated+from+its+reflectance+spectrum+in+comparison+with+HED+meteorites&rft.au=Hiroi%2C+Takahiro%3BPieters%2C+Carle+M%3BTakeda%2C+Hiroshi&rft.aulast=Hiroi&rft.aufirst=Takahiro&rft.date=1994-05-01&rft.volume=29&rft.issue=3&rft.spage=394&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 15 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; diogenite; eucrite; grain size; HED meteorites; howardite; meteorites; regolith; stony meteorites; Vesta Asteroid ER - TY - JOUR T1 - Fractional crystallization of iron meteorites; constant versus changing partition coefficients AN - 50236520; 1994-040757 AB - Analyses of magmatic iron meteorites, plotted on logC (sub i) vs logC (sub Ni) diagrams, often form linear arrays. Traditionally, this linearity has been ascribed to fractional crystallization under the assumption of constant partition coefficients (i.e. Rayleigh fractionation). However, solid-metal/liquid-metal partition coefficients in the Fe-Ni-S-P system are decidedly not constant. This paper provides a rationale for understanding how trends on logC (sub i) vs logC (sub Ni) diagrams can be indistinguishable from linear, even when partition coefficients are changing rapidly. JF - Meteoritics AU - Jones, J H Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 423 EP - 426 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 3 SN - 0026-1114, 0026-1114 KW - meteorites KW - partition coefficients KW - iron meteorites KW - crystallization KW - trace elements KW - fractionation KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50236520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Fractional+crystallization+of+iron+meteorites%3B+constant+versus+changing+partition+coefficients&rft.au=Jones%2C+J+H&rft.aulast=Jones&rft.aufirst=J&rft.date=1994-05-01&rft.volume=29&rft.issue=3&rft.spage=423&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 5 N1 - PubXState - AZ N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - crystallization; fractionation; iron meteorites; meteorites; partition coefficients; trace elements ER - TY - JOUR T1 - Apollo 12 ropy glasses revisited AN - 50234345; 1994-040745 AB - Ropy glasses from Apollo 12 soils 12032 and 12033 were analysed by SEM/EDX, EPMA, INAA and (super 40) Ar/ (super 39) Ar dating. The ropy glasses have KREEP-like compositions different from those of local Apollo 12 mare soils, and appear to have an exotic origin. They appear to have been formed from a liquid enriched in KREEP which also contained a significant amount of mare material. The presence of solar Ar and a trace of regolith-derived glass are evidence that they contain a small regolith component. Anorthosite and crystalline breccia (KREEP) clasts occur in some ropy glasses. Clasts of felsite are similar in texture and composition to the larger Apollo 12 felsites, and (super 40) Ar/ (super 39) Ar data indicate that ropy glasses and felsites probably came from the same source, with a degassing age of 800 + or - 15 m.y. The new data reinforce the model that Apollo 12 ropy glasses were part of the ejecta deposited at the Apollo 12 site from the Copernicus impact, and provide new clues to the nature of the target material at the Copernicus site, a part of the Moon that has not been sampled directly. JF - Meteoritics AU - Wentworth, S J AU - McKay, D S AU - Lindstrom, D J AU - Basu, A AU - Martinez, R R AU - Bogard, D D AU - Garrison, D H Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 323 EP - 333 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 3 SN - 0026-1114, 0026-1114 KW - volcanic rocks KW - impact features KW - glasses KW - isotopes KW - igneous rocks KW - meteor craters KW - Apollo Program KW - stable isotopes KW - Ar-40/Ar-39 KW - radioactive isotopes KW - dates KW - noble gases KW - absolute age KW - Upper Jurassic KW - Moon KW - Jurassic KW - isotope ratios KW - Mesozoic KW - argon KW - lunar samples KW - KREEP KW - petrography KW - impact craters KW - Apollo 12 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50234345?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Apollo+12+ropy+glasses+revisited&rft.au=Wentworth%2C+S+J%3BMcKay%2C+D+S%3BLindstrom%2C+D+J%3BBasu%2C+A%3BMartinez%2C+R+R%3BBogard%2C+D+D%3BGarrison%2C+D+H&rft.aulast=Wentworth&rft.aufirst=S&rft.date=1994-05-01&rft.volume=29&rft.issue=3&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 22 N1 - PubXState - AZ N1 - Document feature - 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; Apollo 12; Apollo Program; Ar-40/Ar-39; argon; dates; glasses; igneous rocks; impact craters; impact features; isotope ratios; isotopes; Jurassic; KREEP; lunar samples; Mesozoic; meteor craters; Moon; noble gases; petrography; radioactive isotopes; stable isotopes; Upper Jurassic; volcanic rocks ER - TY - JOUR T1 - Estimation of grain sizes and mixing ratios of the fine powder mixtures of common geologic minerals AN - 50166091; 1997-020162 AB - Two different approaches for modeling reflectance spectra of intimate mixtures, Hapke's model and the isograin model, are used to estimate grain sizes and mixing ratios of powder mixtures of three geologic minerals: olivine, orthopyroxene, and plagioclase. In Hapke's model, scattering and extinction efficiencies are mixed separately, and both models employ semiempirical refractive index spectra for component minerals. Mixing ratios of mixtures of grain size 45-75 mu m are well estimated by both models assuming a common grain size of 60 mu m and optimizing the constants for the single-particle scattering. For each model, effective grain size ratios for mineral constituents in mixtures of grain size <25 mu m, are derived successfully that allows mineral abundances to be accurately predicted within approximately 4 wt%. On the other hand, neither model can accurately predict mineral reflectance spectra for its smaller grain sizes (<25 and 25-45 mu m) using an absorption coefficient spectrum derived from a larger grain size (45-75 mu m). The errors in both models are significantly reduced if surface roughness effects of the smaller grain-size fractions are modeled. Copyright 1994 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Hiroi, Takahiro AU - Pieters, Carle M Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 10 EP - 10,879 PB - American Geophysical Union, Washington, DC VL - 99 IS - E5 SN - 0148-0227, 0148-0227 KW - silicates KW - plagioclase KW - experimental studies KW - grain size KW - olivine group KW - emission spectra KW - electron probe data KW - nesosilicates KW - pyroxene group KW - mixing KW - olivine KW - orthosilicates KW - petrography KW - framework silicates KW - spectra KW - orthopyroxene KW - isograin model KW - reflectance KW - feldspar group KW - refractive index KW - Hapke's model KW - remote sensing KW - chain silicates KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50166091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Estimation+of+grain+sizes+and+mixing+ratios+of+the+fine+powder+mixtures+of+common+geologic+minerals&rft.au=Hiroi%2C+Takahiro%3BPieters%2C+Carle+M&rft.aulast=Hiroi&rft.aufirst=Takahiro&rft.date=1994-05-01&rft.volume=99&rft.issue=E5&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JE00841 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 11 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chain silicates; electron probe data; emission spectra; experimental studies; feldspar group; framework silicates; grain size; Hapke's model; isograin model; mixing; nesosilicates; olivine; olivine group; orthopyroxene; orthosilicates; petrography; plagioclase; pyroxene group; reflectance; refractive index; remote sensing; silicates; spectra DO - http://dx.doi.org/10.1029/94JE00841 ER - TY - JOUR T1 - Reduction of lunar basalt 70035; oxygen yield and reaction product analysis AN - 50165935; 1997-020164 AB - Oxygen production from a lunar rock has been experimentally demonstrated for the first time. A 10 g sample of high-Ti basalt 70035 was reduced with hydrogen in seven experiments at temperatures of 900-1050 degrees C and pressures of 14.7-150 psia. In all experiments, water evolution began almost immediately and was essentially complete in tens of minutes. Oxygen yields ranged from 2.93 to 4.61% of the starting sample weight, and showed weak dependence on temperature and pressure. Analysis of the solid samples demonstrated total reduction of Fe (super 2+) in ilmenite and small degrees of reduction in olivine and pyroxene. TiO (sub 2) was also partially reduced to one or more suboxides. Data from these experiments provide a basis for predicting the yield of oxygen from lunar basalt as well as new constraints on natural reduction in the lunar regolith. Copyright 1994 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Gibson, Michael A AU - Knudsen, Christian W AU - Brueneman, David J AU - Allen, Carlton C AU - Kanamori, Hiroshi AU - McKay, David S Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 10 EP - 10,897 PB - American Geophysical Union, Washington, DC VL - 99 IS - E5 SN - 0148-0227, 0148-0227 KW - silicates KW - ilmenite KW - experimental studies KW - volcanic rocks KW - oxygen KW - Moon KW - igneous rocks KW - olivine group KW - temperature KW - nesosilicates KW - lunar samples KW - pyroxene group KW - olivine KW - basalts KW - orthosilicates KW - oxides KW - reduction KW - crystal chemistry KW - geochemistry KW - high temperature KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50165935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Reduction+of+lunar+basalt+70035%3B+oxygen+yield+and+reaction+product+analysis&rft.au=Gibson%2C+Michael+A%3BKnudsen%2C+Christian+W%3BBrueneman%2C+David+J%3BAllen%2C+Carlton+C%3BKanamori%2C+Hiroshi%3BMcKay%2C+David+S&rft.aulast=Gibson&rft.aufirst=Michael&rft.date=1994-05-01&rft.volume=99&rft.issue=E5&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JE00787 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 46 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 plates, 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - basalts; chain silicates; crystal chemistry; experimental studies; geochemistry; high temperature; igneous rocks; ilmenite; lunar samples; Moon; nesosilicates; olivine; olivine group; orthosilicates; oxides; oxygen; pyroxene group; reduction; silicates; temperature; volcanic rocks DO - http://dx.doi.org/10.1029/94JE00787 ER - TY - JOUR T1 - Lithologic and climatologic controls of river chemistry AN - 50085761; 2010-018239 AB - The chemistry of river waters draining a range of lithologies and climatic regions is reported, with the greatest detail recorded for basaltic catchment areas using 33 rivers from Hawaii, Iceland, the Columbia Plateau and other regions of the USA. For rivers draining most rock types, the sum of cations is balanced mainly by bicarbonate. Of all the major elements, bicarbonate and SiO (sub 2) are relatively unaffected by human action and therefore are good indicators of chemical weathering. For Hawaiian rivers, the average chemistries are related to the relative distribution of soil units in each catchment, with an equilibrium (ion exchange) control on cation ratios. Abundant vegetation and tropical climate favour chemical dissolution, but an excess of soil formation greatly reduces chemical weathering. Changes in climate, continental position and uplift rates are vital components of the global weathering budget. JF - Geochimica et Cosmochimica Acta AU - Bluth, G J S AU - Kump, L R A2 - Ohmoto, Hiroshi A2 - Logsdon, Mark J. Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 2341 EP - 2359 PB - Pergamon, Oxford VL - 58 IS - 10 SN - 0016-7037, 0016-7037 KW - United States KW - Greater Antilles KW - volcanic rocks KW - igneous rocks KW - rivers and streams KW - Europe KW - solution KW - Puerto Rico KW - chemical reactions KW - quantitative analysis KW - silica KW - carbon KW - basalts KW - climate effects KW - geochemistry KW - bedrock KW - Western Europe KW - global KW - surface water KW - drainage patterns KW - West Indies KW - Caribbean region KW - bicarbonate ion KW - hydrochemistry KW - geochemical cycle KW - Antilles KW - runoff KW - cations KW - seasonal variations KW - Iceland KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50085761?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lithologic+and+climatologic+controls+of+river+chemistry&rft.au=Bluth%2C+G+J+S%3BKump%2C+L+R&rft.aulast=Bluth&rft.aufirst=G+J&rft.date=1994-05-01&rft.volume=58&rft.issue=10&rft.spage=2341&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990015-9 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - Symposium in honor of Heinrich D. Holland N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2010-01-01 N1 - Number of references - 67 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Antilles; basalts; bedrock; bicarbonate ion; carbon; Caribbean region; cations; chemical reactions; climate effects; drainage patterns; Europe; geochemical cycle; geochemistry; global; Greater Antilles; hydrochemistry; Iceland; igneous rocks; Puerto Rico; quantitative analysis; rivers and streams; runoff; seasonal variations; silica; solution; surface water; United States; volcanic rocks; West Indies; Western Europe DO - http://dx.doi.org/10.1016/0016-7037(94)90015-9 ER - TY - JOUR T1 - A high resolution bio-optical model of microalgal growth: Tests using sea-ice algal community time-series data AN - 1827925128; PQ0003642438 AB - A high resolution, two-dimensional (z, t) time-dependent model of microalgal growth has been developed in which simulated physiological responses are determined by ambient temperature, spectral irradiance, nutrient concentration, and salinity. The model is based on the concept of a maximum temperature-dependent growth rate that is subsequently reduced by limitations imposed from insufficient light or nutrients, as well as sub- or supraoptimal salinity. Limitation terms for these variables are derived from studies of nutrient-, light-, and salinity-dependent algal growth (or photosynthetic) rates that have been normalized to maximum observed rates with respect to each variable. Particular emphasis was placed on developing the formulation for light limitation, which includes the effects of diel changes in spectral irradiance, seasonal changes in photoperiod, and related adjustments in biochemical C : Chl a ratios. This level of detail was needed because the importance of light limitation has been demonstrated on diurnal, seasonal, and annual time scales in polar regions. The model was tested by comparing simulation results to a sea-ice microalgal bloom in McMurdo Sound, Antarctica, in 1982. Environmental information from 1982 and biological coefficients derived from sea-ice communities were used as model input. Model results showed excellent agreement with microalgal bloom dynamics observed in 1982 under a variety of environmental conditions. Predicted Chl a standing crops were consistently within 15% of observations for the congelation ice and platelet ice, regardless of snow thickness (snow-free, 5-cm, and 10-cm snow-cover scenarios were tested), and predicted vertical distributions of Chl a exhibited the same depth-dependent pattern as observations. JF - Limnology and Oceanography AU - Arrigo, Kevin R AU - Sullivan, Cornelius W AD - Oceans and Ice Branch, Code 971, NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771. Y1 - 1994/05// PY - 1994 DA - May 1994 SP - 609 EP - 631 PB - Association for the Sciences of Limnology and Oceanography VL - 39 IS - 3 SN - 0024-3590, 0024-3590 KW - Ecology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Aqualine Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Algal blooms KW - Chlorophylls KW - Photoperiods KW - Limnology KW - Phytoplankton KW - Nutrients KW - Salinity KW - Sound KW - Seasonal variations KW - PSE, Antarctica, Victoria Land, Arrival Heights, McMurdo Sound KW - Algae KW - Modelling KW - Ice KW - Vertical Distribution KW - Growth Rates KW - Water temperature KW - PS, Antarctica KW - Nutrient concentrations KW - Irradiance KW - Algal Growth KW - Models KW - Growth KW - Salinity effects KW - Temperature effects KW - Growth rate KW - Marine KW - Vertical distribution KW - Data processing KW - Snow KW - Light effects KW - Standing Crops KW - Platelets KW - Environmental conditions KW - Standing crop KW - AQ 00001:Water Resources and Supplies KW - Q1 08482:Ecosystems and energetics KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies KW - K 03450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827925128?accountid=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=Limnology+and+Oceanography&rft.atitle=A+high+resolution+bio-optical+model+of+microalgal+growth%3A+Tests+using+sea-ice+algal+community+time-series+data&rft.au=Arrigo%2C+Kevin+R%3BSullivan%2C+Cornelius+W&rft.aulast=Arrigo&rft.aufirst=Kevin&rft.date=1994-05-01&rft.volume=39&rft.issue=3&rft.spage=609&rft.isbn=&rft.btitle=&rft.title=Limnology+and+Oceanography&rft.issn=00243590&rft_id=info:doi/10.4319%2Flo.1994.39.3.0609 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Growth rate; Chlorophylls; Algal blooms; Growth; Phytoplankton; Water temperature; Environmental conditions; Light effects; Modelling; Temperature effects; Vertical distribution; Ice; Data processing; Photoperiods; Irradiance; Snow; Nutrients; Models; Salinity effects; Sound; Platelets; Seasonal variations; Nutrient concentrations; Standing crop; Algae; Standing Crops; Salinity; Vertical Distribution; Limnology; Growth Rates; Algal Growth; PS, Antarctica; PSE, Antarctica, Victoria Land, Arrival Heights, McMurdo Sound; Marine DO - http://dx.doi.org/10.4319/lo.1994.39.3.0609 ER - TY - JOUR T1 - Uplift of the Kenai Peninsula, Alaska since the 1964 Prince William Sound earthquake AN - 52671815; 1997-071390 JF - Eos, Transactions, American Geophysical Union AU - Cohen, S C AU - Holdahl, S R AU - Caprette, D AU - Hilla, S AU - Safford, R AU - Schultz, D AU - Anonymous Y1 - 1994/04/19/ PY - 1994 DA - 1994 Apr 19 SP - 112 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Global Positioning System KW - Alaska earthquake 1964 KW - uplifts KW - displacements KW - Southern Alaska KW - Kenai Peninsula KW - Alaska KW - tectonics KW - earthquakes KW - seismotectonics KW - faults KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52671815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Uplift+of+the+Kenai+Peninsula%2C+Alaska+since+the+1964+Prince+William+Sound+earthquake&rft.au=Cohen%2C+S+C%3BHoldahl%2C+S+R%3BCaprette%2C+D%3BHilla%2C+S%3BSafford%2C+R%3BSchultz%2C+D%3BAnonymous&rft.aulast=Cohen&rft.aufirst=S&rft.date=1994-04-19&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=112&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2014-03-14 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Alaska; Alaska earthquake 1964; displacements; earthquakes; faults; Global Positioning System; Kenai Peninsula; seismotectonics; Southern Alaska; tectonics; United States; uplifts ER - TY - JOUR T1 - Space proton transport in one dimension. AN - 77109912; 11537897 AB - An approximate evaluation procedure is derived for a second-order theory of coupled nucleon transport in one dimension. An analytical solution with a simplified interaction model is used to determine quadrature parameters to minimize truncation error. Effects of the improved method on transport solutions with the BRYNTRN data base are evaluated. Comparisons with Monte Carlo benchmarks are given. Using different shield materials, the computational procedure is used to study the physics of space protons. A transition effect occurs in tissue near the shield interface and is most important in shields of high atomic number. JF - Nuclear science and engineering : the journal of the American Nuclear Society AU - Lamkin, S L AU - Khandelwal, G S AU - Shinn, J L AU - Wilson, J W AD - Old Dominion University, Department of Physics, Norfolk, Virginia 23529-0116. Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 291 EP - 299 VL - 116 SN - 0029-5639, 0029-5639 KW - Protons KW - 0 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Radiation Dosage KW - Scattering, Radiation KW - Computer Simulation KW - Cosmic Radiation KW - Solar System KW - Elementary Particles KW - Monte Carlo Method KW - Mathematics KW - Energy Transfer KW - Radiation Protection -- statistics & numerical data KW - Models, Statistical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109912?accountid=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=Nuclear+science+and+engineering+%3A+the+journal+of+the+American+Nuclear+Society&rft.atitle=Space+proton+transport+in+one+dimension.&rft.au=Lamkin%2C+S+L%3BKhandelwal%2C+G+S%3BShinn%2C+J+L%3BWilson%2C+J+W&rft.aulast=Lamkin&rft.aufirst=S&rft.date=1994-04-01&rft.volume=116&rft.issue=&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Nuclear+science+and+engineering+%3A+the+journal+of+the+American+Nuclear+Society&rft.issn=00295639&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-06 N1 - Date created - 1995-06-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Prospects for Jovian seismological observations following the impact of Comet SL-9 AN - 52878222; 1996-022475 JF - Eos, Transactions, American Geophysical Union AU - Deming, L D AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 224 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - planets KW - comets KW - seismology KW - Jupiter KW - Shoemaker-Levy 9 Comet KW - outer planets KW - interpretation KW - impacts KW - observations KW - giant planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52878222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Prospects+for+Jovian+seismological+observations+following+the+impact+of+Comet+SL-9&rft.au=Deming%2C+L+D%3BAnonymous&rft.aulast=Deming&rft.aufirst=L&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=224&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - comets; giant planets; impacts; interpretation; Jupiter; observations; outer planets; planets; seismology; Shoemaker-Levy 9 Comet ER - TY - JOUR T1 - Lunar topography and gravity fields from the Clementine Mission AN - 52874863; 1996-022471 JF - Eos, Transactions, American Geophysical Union AU - Zuber, Maria T AU - Smith, David E AU - Lemoine, Frank G AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 222 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - gravity field KW - topography KW - Moon KW - Clementine Program KW - interpretation KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52874863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Lunar+topography+and+gravity+fields+from+the+Clementine+Mission&rft.au=Zuber%2C+Maria+T%3BSmith%2C+David+E%3BLemoine%2C+Frank+G%3BAnonymous&rft.aulast=Zuber&rft.aufirst=Maria&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=222&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Clementine Program; gravity field; interpretation; Moon; observations; topography ER - TY - JOUR T1 - Experimental constraints on the low-pressure evolution of transitional and mildly alkalic basalts; the effect of Fe-Ti oxide minerals and the origin of basaltic andesites AN - 52839542; 1996-045474 AB - One-atmosphere melting experiments, controlled at the F-M-Q oxygen buffer, on mildly alkalic and transitional basalts from Iceland, show that these begin to crystallize Fe-Ti oxide minerals (magnetite and/or ilmenite) at 1105 +- 5 degrees C, apparently independently of bulk composition and the order of silicate and oxide mineral crystallization. Most samples crystallize plagioclase and olivine as the first two crystalline phases, augite as the third phase, and an Fe-Ti oxide mineral as the fourth phase. The main effects of Fe-Ti oxide crystallization are a marked decrease in FeO and TiO (sub 2) in the liquid, and a notable increase in SiO (sub 2) and Al (sub 2) O (sub 3) and the minor oxides K (sub 2) O and P (sub 2) O (sub 5) , with decreasing T. The most silicic glasses are compositionally mugearitic and shoshonitic basaltic andesites. Because the smallest amount of glass that can be analysed with the microprobe represents 20-55% liquid remaining, it can be expected that more silicic liquids will occur at lower T. On normative, pseudoternary projections, the general effect of Fe-Ti oxide crystallization for mildly alkalic and transitional basalts is a marked increase in normative quartz. This is caused by a strong systematic convergence, with the appearance of Fe-Ti oxides of the bulk solid precipitates towards the liquid compositions, as projected on the triangle plagioclase- diopside-olivine. For alkalic basalts, the bulk solid precipitate shows an increase in normative diopside with falling T and Fe-Ti oxide crystallization. This causes the liquids to move towards decreasingnormative diopside and relatively little variation in nepheline. The experimental observations imply that mildly alkalic and transitional magmas without stabilizing a Fe-Ti oxide mineral will not evolve towards early silica saturation. [Authors' abstract] JF - Contributions to Mineralogy and Petrology AU - Thy, P AU - Lofgren, G E Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 340 EP - 351 PB - Springer International, Heidelberg-New York VL - 116 IS - 3 SN - 0010-7999, 0010-7999 KW - ilmenite KW - alkali basalts KW - tholeiitic basalt KW - andesites KW - volcanic rocks KW - iron oxides KW - igneous rocks KW - enrichment KW - Europe KW - iron KW - fugacity KW - melting KW - silica KW - basalts KW - oxides KW - chemical composition KW - basaltic composition KW - Western Europe KW - pressure KW - low pressure KW - titanium oxides KW - transition zones KW - metals KW - Iceland KW - magnetite KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52839542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Experimental+constraints+on+the+low-pressure+evolution+of+transitional+and+mildly+alkalic+basalts%3B+the+effect+of+Fe-Ti+oxide+minerals+and+the+origin+of+basaltic+andesites&rft.au=Thy%2C+P%3BLofgren%2C+G+E&rft.aulast=Thy&rft.aufirst=P&rft.date=1994-04-01&rft.volume=116&rft.issue=3&rft.spage=340&rft.isbn=&rft.btitle=&rft.title=Contributions+to+Mineralogy+and+Petrology&rft.issn=00107999&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1996-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMPEAP N1 - SubjectsTermNotLitGenreText - alkali basalts; andesites; basaltic composition; basalts; chemical composition; enrichment; Europe; fugacity; Iceland; igneous rocks; ilmenite; iron; iron oxides; low pressure; magnetite; melting; metals; oxides; pressure; silica; tholeiitic basalt; titanium oxides; transition zones; volcanic rocks; Western Europe ER - TY - RPRT T1 - Lunar Scout Program; an international program to survey the Moon from orbit for geochemistry, mineralogy, imagery, geodesy, and gravity AN - 52774786; 1997-010055 AB - The Lunar Scout Program was one of a series of attempts by NASA to develop and fly an orbiting mission to the Moon to collect geochemical, geological, and gravity data. Predecessors included the Lunar Observer, the Lunar Geochemical Orbiter, and the Lunar Polar Orbiter-missions studied under the auspices of the Office of Space Science. The Lunar Scout Program, however, was an initiative of the Office of Exploration. It was begun in late 1991 and was transferred to the Office of Space Science after the Office of Exploration was disbanded in 1993. Most of the work was done by a small group of civil servants at the Johnson Space Center; other groups also responsible for mission planning included personnel from the Charles Stark Draper Laboratories, the Lawrence Livermore National Laboratory, Boeing, and Martin Marietta. The Lunar Scout Program failed to achieve new start funding in FY 93 and FY 94 as a result of budget downturns, the de-emphasis of the Space Exploration Initiative, and the fact that lunar science did not rate as high a priority as other planned planetary missions, and was cancelled. The work done on the Lunar Scout Program and other lunar orbiter studies, however, represents assets that will be useful in developing new approaches to lunar orbit science. JF - Lunar Scout Program; an international program to survey the Moon from orbit for geochemistry, mineralogy, imagery, geodesy, and gravity AU - Morrison, D A Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 147 VL - NAS 1.15:104791 | S-762 KW - gravity methods KW - imagery KW - geophysical surveys KW - craters KW - Moon KW - geophysical methods KW - surveys KW - mineralogy KW - geodesy KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52774786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Morrison%2C+D+A&rft.aulast=Morrison&rft.aufirst=D&rft.date=1994-04-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Lunar+Scout+Program%3B+an+international+program+to+survey+the+Moon+from+orbit+for+geochemistry%2C+mineralogy%2C+imagery%2C+geodesy%2C+and+gravity&rft.title=Lunar+Scout+Program%3B+an+international+program+to+survey+the+Moon+from+orbit+for+geochemistry%2C+mineralogy%2C+imagery%2C+geodesy%2C+and+gravity&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1997-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number N94-32923/2NEG, Springfield, VA, United States N1 - SuppNotes - Report, 1991-1993 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Source of the Bangui Magsat anomaly; a testable speculation AN - 52767678; 1997-008303 JF - Eos, Transactions, American Geophysical Union AU - Taylor, P T AU - Girdler, R W AU - Hargraves, R B AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 123 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Central African Republic KW - impact features KW - geophysical surveys KW - geophysical methods KW - magnetization KW - magnetic methods KW - magnetic anomalies KW - paleomagnetism KW - Central Africa KW - Bangui impact structure KW - remanent magnetization KW - thermoremanent magnetization KW - crystalline rocks KW - surveys KW - Africa KW - Magsat KW - impact craters KW - 12:Stratigraphy KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52767678?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Source+of+the+Bangui+Magsat+anomaly%3B+a+testable+speculation&rft.au=Taylor%2C+P+T%3BGirdler%2C+R+W%3BHargraves%2C+R+B%3BAnonymous&rft.aulast=Taylor&rft.aufirst=P&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Africa; Bangui impact structure; Central Africa; Central African Republic; crystalline rocks; geophysical methods; geophysical surveys; impact craters; impact features; magnetic anomalies; magnetic methods; magnetization; Magsat; paleomagnetism; remanent magnetization; surveys; thermoremanent magnetization ER - TY - JOUR T1 - Magnetic characteristics associated with shock in iron and iron-nickel AN - 52767642; 1997-008286 JF - Eos, Transactions, American Geophysical Union AU - Wasilewski, P J AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 121 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - meteorites KW - Campo del Cielo Meteorite KW - iron meteorites KW - metals KW - nickel KW - Odessa Meteorite KW - alloys KW - octahedrite KW - ataxite KW - iron KW - magnetic properties KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52767642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Magnetic+characteristics+associated+with+shock+in+iron+and+iron-nickel&rft.au=Wasilewski%2C+P+J%3BAnonymous&rft.aulast=Wasilewski&rft.aufirst=P&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alloys; ataxite; Campo del Cielo Meteorite; iron; iron meteorites; magnetic properties; metals; meteorites; nickel; octahedrite; Odessa Meteorite ER - TY - JOUR T1 - Time-varying fluid flow at the top of Earth's core derived from definitive geomagnetic reference field models AN - 52762544; 1997-008281 JF - Eos, Transactions, American Geophysical Union AU - Voorhies, C V AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 120 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - outer core KW - models KW - magnetohydrodynamics KW - time variations KW - core KW - magnetic field KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52762544?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Time-varying+fluid+flow+at+the+top+of+Earth%27s+core+derived+from+definitive+geomagnetic+reference+field+models&rft.au=Voorhies%2C+C+V%3BAnonymous&rft.aulast=Voorhies&rft.aufirst=C&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=120&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - core; magnetic field; magnetohydrodynamics; models; outer core; time variations ER - TY - JOUR T1 - Xenolith magnetic petrology AN - 52762132; 1997-008330 JF - Eos, Transactions, American Geophysical Union AU - Warner, R D AU - Wasilewski, P J AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 127 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - remanent magnetization KW - inclusions KW - magnetization KW - natural remanent magnetization KW - Curie point KW - xenoliths KW - magnetic properties KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52762132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Xenolith+magnetic+petrology&rft.au=Warner%2C+R+D%3BWasilewski%2C+P+J%3BAnonymous&rft.aulast=Warner&rft.aufirst=R&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=127&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Curie point; inclusions; magnetic properties; magnetization; natural remanent magnetization; remanent magnetization; xenoliths ER - TY - JOUR T1 - A GPS survey of crustal deformation in interior Alaska AN - 52678190; 1997-071388 JF - Eos, Transactions, American Geophysical Union AU - Bell, L J AU - Sauber, J M AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 112 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - North America KW - Denali Fault KW - Global Positioning System KW - strain KW - geodesy KW - Southern Alaska KW - horizontal movements KW - shear KW - Alaska KW - very long baseline interferometry KW - faults KW - crust KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52678190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+GPS+survey+of+crustal+deformation+in+interior+Alaska&rft.au=Bell%2C+L+J%3BSauber%2C+J+M%3BAnonymous&rft.aulast=Bell&rft.aufirst=L&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=112&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Alaska; crust; Denali Fault; faults; geodesy; Global Positioning System; horizontal movements; North America; shear; Southern Alaska; strain; United States; very long baseline interferometry ER - TY - JOUR T1 - The role of global wind-driven ocean circulation in the Earth's angular momentum budget and time varying gravity field AN - 52677108; 1997-071402 JF - Eos, Transactions, American Geophysical Union AU - Steinberg, D J AU - Marshall, J A AU - Pavlis, N K AU - Chao, B F AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 115 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - motions KW - general circulation models KW - ocean circulation KW - gravity field KW - angular momentum KW - Earth KW - geodesy KW - harmonics KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52677108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+global+wind-driven+ocean+circulation+in+the+Earth%27s+angular+momentum+budget+and+time+varying+gravity+field&rft.au=Steinberg%2C+D+J%3BMarshall%2C+J+A%3BPavlis%2C+N+K%3BChao%2C+B+F%3BAnonymous&rft.aulast=Steinberg&rft.aufirst=D&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - angular momentum; Earth; general circulation models; geodesy; gravity field; harmonics; motions; ocean circulation ER - TY - JOUR T1 - New Madrid seismic zone; bounds on strain rates from preliminary GPS geodesy results AN - 52675949; 1997-071393 JF - Eos, Transactions, American Geophysical Union AU - Weber, John AU - Stein, Seth AU - Engeln, Joseph F AU - Romans, Larry AU - Webb, Frank H AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 113 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Global Positioning System KW - strain KW - seismicity KW - rates KW - very long baseline interferometry KW - geodesy KW - deformation KW - New Madrid region KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52675949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=New+Madrid+seismic+zone%3B+bounds+on+strain+rates+from+preliminary+GPS+geodesy+results&rft.au=Weber%2C+John%3BStein%2C+Seth%3BEngeln%2C+Joseph+F%3BRomans%2C+Larry%3BWebb%2C+Frank+H%3BAnonymous&rft.aulast=Weber&rft.aufirst=John&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=113&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - deformation; geodesy; Global Positioning System; New Madrid region; rates; seismicity; strain; United States; very long baseline interferometry ER - TY - JOUR T1 - Rates of deformation in southern and central Alaska from a combination of VLBI and GPS data; 1984-1993 AN - 52673773; 1997-071389 JF - Eos, Transactions, American Geophysical Union AU - Sauber, J M AU - van Dam, Tonie AU - Gipson, J M AU - Herring, T A AU - Himwich, W E AU - Clark, T AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 112 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Global Positioning System KW - central Alaska KW - rates KW - Alaska KW - very long baseline interferometry KW - geodesy KW - deformation KW - Southern Alaska KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52673773?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Rates+of+deformation+in+southern+and+central+Alaska+from+a+combination+of+VLBI+and+GPS+data%3B+1984-1993&rft.au=Sauber%2C+J+M%3Bvan+Dam%2C+Tonie%3BGipson%2C+J+M%3BHerring%2C+T+A%3BHimwich%2C+W+E%3BClark%2C+T%3BAnonymous&rft.aulast=Sauber&rft.aufirst=J&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=112&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Alaska; central Alaska; deformation; geodesy; Global Positioning System; rates; Southern Alaska; United States; very long baseline interferometry ER - TY - JOUR T1 - Eastern Mediterranean kinematics estimated from satellite laser ranging measurements AN - 52673666; 1997-071406 JF - Eos, Transactions, American Geophysical Union AU - Smith, D E AU - Dunn, P J AU - Torrence, M H AU - Robbins, J W AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 115 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Eurasian Plate KW - plate collision KW - laser ranging KW - geodesy KW - satellite methods KW - Arabian Plate KW - kinematics KW - plate tectonics KW - neotectonics KW - movement KW - tectonics KW - Mediterranean region KW - remote sensing KW - African Plate KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52673666?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Eastern+Mediterranean+kinematics+estimated+from+satellite+laser+ranging+measurements&rft.au=Smith%2C+D+E%3BDunn%2C+P+J%3BTorrence%2C+M+H%3BRobbins%2C+J+W%3BAnonymous&rft.aulast=Smith&rft.aufirst=D&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - African Plate; Arabian Plate; Eurasian Plate; geodesy; kinematics; laser ranging; Mediterranean region; movement; neotectonics; plate collision; plate tectonics; remote sensing; satellite methods; tectonics ER - TY - JOUR T1 - Geodetic aircraft laser altimetry of glaciers AN - 52673253; 1997-071362 JF - Eos, Transactions, American Geophysical Union AU - Garvin, J B AU - Williams, R S, Jr AU - Bufton, J L AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 102 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Global Positioning System KW - Washington KW - Western Europe KW - laser methods KW - data acquisition KW - Arctic region KW - fissures KW - data processing KW - glaciers KW - Europe KW - altimetry KW - glacial features KW - geodetic networks KW - geodesy KW - Greenland KW - Alaska KW - Iceland KW - airborne methods KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52673253?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Geodetic+aircraft+laser+altimetry+of+glaciers&rft.au=Garvin%2C+J+B%3BWilliams%2C+R+S%2C+Jr%3BBufton%2C+J+L%3BAnonymous&rft.aulast=Garvin&rft.aufirst=J&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=102&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - airborne methods; Alaska; altimetry; Arctic region; data acquisition; data processing; Europe; fissures; geodesy; geodetic networks; glacial features; glaciers; Global Positioning System; Greenland; Iceland; laser methods; United States; Washington; Western Europe ER - TY - JOUR T1 - Slip distribution of the 1964 Alaska earthquake from joint inversion of tsunami and geodetic data AN - 52671846; 1997-071391 JF - Eos, Transactions, American Geophysical Union AU - Johnson, J M AU - Satake, K AU - Holdahl, S R AU - Sauber, J M AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 112 EP - 113 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - tsunamis KW - Alaska earthquake 1964 KW - asperities KW - seismic moment KW - geodesy KW - displacements KW - Southern Alaska KW - models KW - movement KW - Alaska KW - tectonics KW - earthquakes KW - seismotectonics KW - faults KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52671846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Slip+distribution+of+the+1964+Alaska+earthquake+from+joint+inversion+of+tsunami+and+geodetic+data&rft.au=Johnson%2C+J+M%3BSatake%2C+K%3BHoldahl%2C+S+R%3BSauber%2C+J+M%3BAnonymous&rft.aulast=Johnson&rft.aufirst=J&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=112&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Alaska; Alaska earthquake 1964; asperities; displacements; earthquakes; faults; geodesy; models; movement; seismic moment; seismotectonics; Southern Alaska; tectonics; tsunamis; United States ER - TY - JOUR T1 - Vertical resolution of SLR stations AN - 52671786; 1997-071372 JF - Eos, Transactions, American Geophysical Union AU - Dunn, P J AU - Torrence, M H AU - Kolenkiewicz, R AU - Smith, D E AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 104 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - geophysical methods KW - laser ranging KW - Lageos KW - seasonal variations KW - geodesy KW - satellite methods KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52671786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Vertical+resolution+of+SLR+stations&rft.au=Dunn%2C+P+J%3BTorrence%2C+M+H%3BKolenkiewicz%2C+R%3BSmith%2C+D+E%3BAnonymous&rft.aulast=Dunn&rft.aufirst=P&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=104&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - geodesy; geophysical methods; Lageos; laser ranging; remote sensing; satellite methods; seasonal variations ER - TY - JOUR T1 - The co-location of global geophysics stations AN - 52671704; 1997-071375 JF - Eos, Transactions, American Geophysical Union AU - Heirtzler, J R AU - Bosworth, J M AU - Langel, R A AU - Baldwin, R T AU - Butler, R AU - Simpson, D AU - Constable, S C AU - Dziewonski, A M AU - Frawley, J J AU - Green, A, Jr AU - LaBrecque, L AU - Purdy, M G AU - Teague, M AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 106 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - networks KW - geophysical methods KW - seismic networks KW - geodetic networks KW - geodesy KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52671704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+co-location+of+global+geophysics+stations&rft.au=Heirtzler%2C+J+R%3BBosworth%2C+J+M%3BLangel%2C+R+A%3BBaldwin%2C+R+T%3BButler%2C+R%3BSimpson%2C+D%3BConstable%2C+S+C%3BDziewonski%2C+A+M%3BFrawley%2C+J+J%3BGreen%2C+A%2C+Jr%3BLaBrecque%2C+L%3BPurdy%2C+M+G%3BTeague%2C+M%3BAnonymous&rft.aulast=Heirtzler&rft.aufirst=J&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - geodesy; geodetic networks; geophysical methods; networks; seismic networks ER - TY - JOUR T1 - The climate history of Venus AN - 50337187; 1996-022451 JF - Eos, Transactions, American Geophysical Union AU - Grinspoon, D H AU - Bullock, M A AU - Pollack, J B AU - Head, J W AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 214 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - terrestrial planets KW - history KW - planets KW - Venus KW - resurfacing KW - atmosphere KW - interpretation KW - climate KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50337187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+climate+history+of+Venus&rft.au=Grinspoon%2C+D+H%3BBullock%2C+M+A%3BPollack%2C+J+B%3BHead%2C+J+W%3BAnonymous&rft.aulast=Grinspoon&rft.aufirst=D&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=214&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; climate; history; interpretation; planets; resurfacing; terrestrial planets; Venus ER - TY - JOUR T1 - CO (sub 2) and diatom mats AN - 50250016; 1994-028235 JF - Nature (London) AU - Rothschild, Lynn J Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 817 PB - Macmillan Journals, London VL - 368 IS - 6474 SN - 0028-0836, 0028-0836 KW - algae KW - Holocene KW - paleoecology KW - carbon dioxide KW - modern KW - Cenozoic KW - diatoms KW - algal mats KW - ecology KW - sedimentary structures KW - pH KW - East Pacific KW - Plantae KW - experimental studies KW - Quaternary KW - living taxa KW - biogenic structures KW - paleoatmosphere KW - planktonic taxa KW - Equatorial Pacific KW - algal structures KW - nutrients KW - Tertiary KW - Neogene KW - Pacific Ocean KW - fossils KW - microfossils KW - 24:Quaternary geology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50250016?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=CO+%28sub+2%29+and+diatom+mats&rft.au=Rothschild%2C+Lynn+J&rft.aulast=Rothschild&rft.aufirst=Lynn&rft.date=1994-04-01&rft.volume=368&rft.issue=6474&rft.spage=817&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 - 1994-01-01 N1 - Number of references - 12 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - algae; algal mats; algal structures; biogenic structures; carbon dioxide; Cenozoic; diatoms; East Pacific; ecology; Equatorial Pacific; experimental studies; fossils; Holocene; living taxa; microfossils; modern; Neogene; nutrients; Pacific Ocean; paleoatmosphere; paleoecology; pH; planktonic taxa; Plantae; Quaternary; sedimentary structures; Tertiary ER - TY - JOUR T1 - Comparison of plate and asthenospheric flow models for the thermal evolution of oceanic lithosphere AN - 50177349; 1994-054464 AB - Although seafloor depth and heat flow for young oceanic lithosphere can be described by modeling the lithosphere as the boundary layer of a cooling halfspace, a long standing question has been why data at older ages deviate from those expected for a halfspace. Two classes of models have been proposed for these deviations. In one, heat added from below "flattens" depth and heat flow. In the other, asthenospheric flow beneath the lithosphere perturbs the depths. We compare recent versions of the model classes: the GDH1 thin-lithosphere plate model [Stein and Stein, 1992] and an asthenospheric flow model [Phipps Morgan and Smith, 1992]. The plate model fits heat flow data better than the flow model for all cases considered, and topographic data in all but one case. The flow model significantly overpredicts depths for the North Atlantic, because the assumed asthenospheric flow in the plate motion direction would yield deepening for old ages rather than the observed flattening. Overall, the GDH1 global average model does better than this flow model, whose parameters were fit to specific plates. Moreover, plate models fit to specific plates do better than the flow model. Plate models thus appear more useful than this flow model, suggesting that deviations from a cooling halfspace are largely thermal in origin. Copyright 1994 by the American Geophysical Union. JF - Geophysical Research Letters AU - Stein, Carol A AU - Stein, Seth Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 709 EP - 712 PB - American Geophysical Union, Washington, DC VL - 21 IS - 8 SN - 0094-8276, 0094-8276 KW - oceanic crust KW - upper mantle KW - Northwest Atlantic KW - lithosphere KW - South American Plate KW - mantle KW - thermal history KW - models KW - asthenosphere KW - plate tectonics KW - North Pacific KW - heat flow KW - Pacific Ocean KW - movement KW - half-space KW - Pacific Plate KW - North Atlantic KW - crust KW - Atlantic Ocean KW - African Plate KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50177349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Comparison+of+plate+and+asthenospheric+flow+models+for+the+thermal+evolution+of+oceanic+lithosphere&rft.au=Stein%2C+Carol+A%3BStein%2C+Seth&rft.aulast=Stein&rft.aufirst=Carol&rft.date=1994-04-01&rft.volume=21&rft.issue=8&rft.spage=709&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F94GL00632 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - African Plate; asthenosphere; Atlantic Ocean; crust; half-space; heat flow; lithosphere; mantle; models; movement; North Atlantic; North Pacific; Northwest Atlantic; oceanic crust; Pacific Ocean; Pacific Plate; plate tectonics; South American Plate; thermal history; upper mantle DO - http://dx.doi.org/10.1029/94GL00632 ER - TY - JOUR T1 - Isotopic evidence for the episodic oxidation of the Precambrian environment; a tectonic role AN - 50100301; 1995-067816 JF - Eos, Transactions, American Geophysical Union AU - Des Marais, D J AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 141 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - cycles KW - isotopes KW - paleo-oceanography KW - banded materials KW - paleoclimatology KW - stable isotopes KW - sedimentary rocks KW - carbon KW - geochemistry KW - organic materials KW - alkaline earth metals KW - chemically precipitated rocks KW - Precambrian KW - isotope ratios KW - biochemistry KW - oxidation KW - C-13/C-12 KW - structural controls KW - Sr-87/Sr-86 KW - organic compounds KW - paleoenvironment KW - iron formations KW - metals KW - kerogen KW - strontium KW - 06A:Sedimentary petrology KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50100301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Isotopic+evidence+for+the+episodic+oxidation+of+the+Precambrian+environment%3B+a+tectonic+role&rft.au=Des+Marais%2C+D+J%3BAnonymous&rft.aulast=Des+Marais&rft.aufirst=D&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; banded materials; biochemistry; C-13/C-12; carbon; chemically precipitated rocks; cycles; geochemistry; iron formations; isotope ratios; isotopes; kerogen; metals; organic compounds; organic materials; oxidation; paleo-oceanography; paleoclimatology; paleoenvironment; Precambrian; sedimentary rocks; Sr-87/Sr-86; stable isotopes; strontium; structural controls ER - TY - JOUR T1 - Lithospheric modeling of regional magnetic and gravity anomalies of the Arabian Plate AN - 50097436; 1995-067754 JF - Eos, Transactions, American Geophysical Union AU - Kim, J W AU - von Frese, R R B AU - Taylor, P T AU - Ravat, D N AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 131 EP - 132 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Zagros KW - free-air anomalies KW - potential field KW - lithosphere KW - Bitlis Turkey KW - Turkey KW - magnetic anomalies KW - Arabian Plate KW - models KW - gravity anomalies KW - Arabian Peninsula KW - suture zones KW - plate tectonics KW - Rub al Khali Basin KW - Arabian Shield KW - Magsat KW - Asia KW - Middle East KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50097436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Lithospheric+modeling+of+regional+magnetic+and+gravity+anomalies+of+the+Arabian+Plate&rft.au=Kim%2C+J+W%3Bvon+Frese%2C+R+R+B%3BTaylor%2C+P+T%3BRavat%2C+D+N%3BAnonymous&rft.aulast=Kim&rft.aufirst=J&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Arabian Peninsula; Arabian Plate; Arabian Shield; Asia; Bitlis Turkey; crust; free-air anomalies; gravity anomalies; lithosphere; magnetic anomalies; Magsat; Middle East; models; plate tectonics; potential field; Rub al Khali Basin; suture zones; Turkey; Zagros ER - TY - JOUR T1 - Isostatic geopotential field anomalies of the Arabian Plate AN - 50090089; 1995-067755 JF - Eos, Transactions, American Geophysical Union AU - von Frese, R R B AU - Kim, J W AU - Taylor, P T AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 132 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - isostatic compensation KW - Bitlis Turkey KW - Red Sea Rift KW - isostasy KW - gravity anomalies KW - suture zones KW - Indian Ocean KW - Magsat KW - Asia KW - Middle East KW - Zagros KW - free-air anomalies KW - rift zones KW - Red Sea KW - potential field KW - lithosphere KW - Dead Sea Rift KW - Turkey KW - magnetic anomalies KW - Arabian Plate KW - Mohorovicic discontinuity KW - plate tectonics KW - Rub al Khali Basin KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50090089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Isostatic+geopotential+field+anomalies+of+the+Arabian+Plate&rft.au=von+Frese%2C+R+R+B%3BKim%2C+J+W%3BTaylor%2C+P+T%3BAnonymous&rft.aulast=von+Frese&rft.aufirst=R+R&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Arabian Plate; Asia; Bitlis Turkey; crust; Dead Sea Rift; free-air anomalies; gravity anomalies; Indian Ocean; isostasy; isostatic compensation; lithosphere; magnetic anomalies; Magsat; Middle East; Mohorovicic discontinuity; plate tectonics; potential field; Red Sea; Red Sea Rift; rift zones; Rub al Khali Basin; suture zones; Turkey; Zagros ER - TY - JOUR T1 - Heat flow, hydrothermal circulation, and thermal structure for young oceanic lithosphere; conventional wisdom versus data AN - 50087918; 1996-003976 JF - Eos, Transactions, American Geophysical Union AU - Stein, Carol A AU - Stein, Seth AU - Pelayo, Aristeo M AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 331 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - oceanic crust KW - lithosphere KW - thermal regime KW - hydrothermal conditions KW - circulation KW - heat flow KW - age KW - cooling KW - ocean floors KW - earthquakes KW - crust KW - mid-ocean ridges KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50087918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Heat+flow%2C+hydrothermal+circulation%2C+and+thermal+structure+for+young+oceanic+lithosphere%3B+conventional+wisdom+versus+data&rft.au=Stein%2C+Carol+A%3BStein%2C+Seth%3BPelayo%2C+Aristeo+M%3BAnonymous&rft.aulast=Stein&rft.aufirst=Carol&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - age; circulation; cooling; crust; earthquakes; heat flow; hydrothermal conditions; lithosphere; mid-ocean ridges; ocean floors; oceanic crust; thermal regime ER - TY - JOUR T1 - Oblique subduction of buoyant lithosphere and asymmetric dip angle transitions; applications to the Central Andes AN - 50083604; 1996-003977 JF - Eos, Transactions, American Geophysical Union AU - Sakimoto, S E H AU - Bills, Bruce G AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 331 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Andes KW - South America KW - plate tectonics KW - transition zones KW - volcanism KW - lithosphere KW - Central Andes KW - subduction KW - asymmetric distribution KW - thermal history KW - Nazca Plate KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50083604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Oblique+subduction+of+buoyant+lithosphere+and+asymmetric+dip+angle+transitions%3B+applications+to+the+Central+Andes&rft.au=Sakimoto%2C+S+E+H%3BBills%2C+Bruce+G%3BAnonymous&rft.aulast=Sakimoto&rft.aufirst=S+E&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Andes; asymmetric distribution; Central Andes; lithosphere; Nazca Plate; plate tectonics; South America; subduction; thermal history; transition zones; volcanism ER - TY - JOUR T1 - Evidence for tilting and deformation in the Central Andes from Lake Minchin shorelines and drainage basin configuration AN - 50082306; 1996-003978 JF - Eos, Transactions, American Geophysical Union AU - Bills, Bruce G AU - Anonymous Y1 - 1994/04// PY - 1994 DA - April 1994 SP - 331 PB - American Geophysical Union, Washington, DC VL - 75 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - vertical movements KW - Andes KW - South America KW - shore features KW - neotectonics KW - tilt KW - drainage basins KW - Central Andes KW - tectonics KW - deformation KW - Lake Minchin KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50082306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Evidence+for+tilting+and+deformation+in+the+Central+Andes+from+Lake+Minchin+shorelines+and+drainage+basin+configuration&rft.au=Bills%2C+Bruce+G%3BAnonymous&rft.aulast=Bills&rft.aufirst=Bruce&rft.date=1994-04-01&rft.volume=75&rft.issue=16%2C+Suppl.&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1994 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Andes; Central Andes; deformation; drainage basins; Lake Minchin; neotectonics; shore features; South America; tectonics; tilt; vertical movements ER - TY - JOUR T1 - Tomato root growth, gravitropism, and lateral development: correlation with auxin transport. AN - 77113053; 11540612 AB - Tomato (Lycopersicon esculentum, Mill.) roots were analyzed during growth on agar plates. Growth of these roots was inhibited by the auxin transport inhibitors naphthylphthalamic acid (NPA) and semicarbazone derivative I (SCB-1). The effect of auxin transport inhibitors on root gravitropism was analyzed by measurement of the angle of gravitropic curvature after the roots were reoriented 90 degrees from the vertical. NPA and SCB-1 abolished both the response of these roots to gravity and the formation of lateral roots, with SCB-1 being the more effective at inhibition. Auxins also inhibited root growth. Both auxins tested has a slight effect on the gravity response, but this effect is probably indirect, since auxins reduced the growth rate. Auxins also stimulated lateral root growth at concentration where primary root growth was inhibited. When roots were treated with both IAA and NPA simultaneously, a cumulative inhibition of root growth was found. When both compounds were applied together, analysis of gravitropism and lateral root formation indicated that the dominant effect was exerted by auxin transport inhibitors. Together, these data suggest a model for the role of auxin transport in controlling both primary and lateral root growth. JF - Plant physiology and biochemistry : PPB AU - Muday, G K AU - Haworth, P AD - Department of Biology, Wake Forest University, Winston-Salem, North Carolina 27109, USA. PY - 1994 SP - 193 EP - 203 VL - 32 IS - 2 SN - 0981-9428, 0981-9428 KW - Herbicides KW - 0 KW - Indoleacetic Acids KW - Naphthaleneacetic Acids KW - Phthalimides KW - Plant Growth Regulators KW - Semicarbazones KW - alpha-naphthylphthalamic acid KW - 306R88V86P KW - 1-naphthaleneacetic acid KW - 33T7G7757C KW - indoleacetic acid KW - 6U1S09C61L KW - Space life sciences KW - NASA Discipline Plant Biology KW - Non-NASA Center KW - Herbicides -- pharmacology KW - Phthalimides -- pharmacology KW - Naphthaleneacetic Acids -- pharmacology KW - Light KW - Biological Transport -- physiology KW - Semicarbazones -- pharmacology KW - Biological Transport -- drug effects KW - Gravitropism -- radiation effects KW - Indoleacetic Acids -- antagonists & inhibitors KW - Plant Roots -- drug effects KW - Lycopersicon esculentum -- radiation effects KW - Plant Growth Regulators -- metabolism KW - Gravitropism -- drug effects KW - Lycopersicon esculentum -- drug effects KW - Plant Growth Regulators -- pharmacology KW - Plant Roots -- radiation effects KW - Plant Growth Regulators -- antagonists & inhibitors KW - Indoleacetic Acids -- metabolism KW - Lycopersicon esculentum -- growth & development KW - Plant Roots -- growth & development KW - Indoleacetic Acids -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113053?accountid=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=Plant+physiology+and+biochemistry+%3A+PPB&rft.atitle=Tomato+root+growth%2C+gravitropism%2C+and+lateral+development%3A+correlation+with+auxin+transport.&rft.au=Muday%2C+G+K%3BHaworth%2C+P&rft.aulast=Muday&rft.aufirst=G&rft.date=1994-03-01&rft.volume=32&rft.issue=2&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=Plant+physiology+and+biochemistry+%3A+PPB&rft.issn=09819428&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 - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Hycrest crested wheatgrass accelerates the degradation of pentachlorophenol in soil. AN - 77112148; 11539191 AB - We investigated the effects of vegetation on the fate of pentachlorophenol (PCP) in soil using a novel high-flow sealed test system. Pentachlorophenol has been widely used as a wood preservative, and this highly toxic biocide contaminates soil and ground water at many sites. Although plants are known to accelerate the rates of degradation of certain soil contaminants, this approach has not been thoroughly investigated for PCP. The fate of [14C]PCP, added to soil at a concentration of 100 mg/kg, was compared in three unplanted and three planted systems. The plant used was Hycrest, a perennial, drought-tolerant cultivar of crested wheatgrass [Agropyron desertorum (Fischer ex Link) Schultes]. The flow-through test system allowed us to maintain a budget for 14C-label as well as monitor mineralization (breakdown to 14CO2) and volatilization of the test compound in a 155-d trial. In the unplanted systems, an average of 88% of the total radiolabel remained in the soil and leachate and only 6% was mineralized. In the planted system, 33% of the radiolabel remained in the soil plus leachate, 22% was mineralized, and 36% was associated with plant tissue (21% with the root fraction and 15% with shoots). Mineralization rates were 23.1 mg PCP mineralized kg-1 soil in 20 wk in the planted system, and for the unplanted system 6.6 mg PCP kg-1 soil for the same time period. Similar amounts of volatile organic material were generated in the two systems (1.5%). Results indicated that establishing crested wheatgrass on PCP-contaminated surface soils may accelerate the removal of the contaminant. JF - Journal of environmental quality AU - Ferro, A M AU - Sims, R C AU - Bugbee, B AD - Dep. of Cellular, Viral, and Molecular Biology, Univ. of Utah, Salt Lake City 84132, USA. PY - 1994 SP - 272 EP - 279 VL - 23 IS - 2 SN - 0047-2425, 0047-2425 KW - Carbon Radioisotopes KW - 0 KW - Environmental Pollutants KW - Phenanthrenes KW - Soil Pollutants KW - Carbon Dioxide KW - 142M471B3J KW - phenanthrene KW - 448J8E5BST KW - Pentachlorophenol KW - D9BSU0SE4T KW - Space life sciences KW - NASA Program CELSS KW - NASA Discipline Number 61-10 KW - Non-NASA Center KW - NASA Discipline Life Support Systems KW - Soil Microbiology KW - Phenanthrenes -- metabolism KW - Equipment Design KW - Plant Shoots -- metabolism KW - Biodegradation, Environmental KW - Phenanthrenes -- chemistry KW - Carbon Dioxide -- metabolism KW - Phenanthrenes -- pharmacokinetics KW - Pentachlorophenol -- pharmacokinetics KW - Environmental Pollutants -- metabolism KW - Soil Pollutants -- metabolism KW - Pentachlorophenol -- chemistry KW - Soil Pollutants -- pharmacokinetics KW - Pentachlorophenol -- metabolism KW - Poaceae -- metabolism KW - Environmental Pollutants -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+quality&rft.atitle=Hycrest+crested+wheatgrass+accelerates+the+degradation+of+pentachlorophenol+in+soil.&rft.au=Ferro%2C+A+M%3BSims%2C+R+C%3BBugbee%2C+B&rft.aulast=Ferro&rft.aufirst=A&rft.date=1994-03-01&rft.volume=23&rft.issue=2&rft.spage=272&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-03-13 N1 - Date created - 1997-03-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Successful unrelated bone marrow transplantation in beta-thalassaemia. AN - 76520677; 8199574 AB - A 16-year-old Sardinian girl affected by homozygous beta-thalassaemia was submitted to allogeneic BMT using an HLA-identical, MLC-negative, unrelated donor. The donor and the patient were homozygous for the entire extended haplotype A30, Cw5, B18, F130, DRB1*0301, DRB3*0202, DQA1*0501, DQB1*0201 and heterozygous for DPB1*0301/DPB1*0202. The conditioning regimen consisted of 14 mg/kg busulphan and 160 mg/kg cyclophosphamide. Engraftment was achieved 14 days from BMT and the haematological reconstitution was complete without any signs of acute or chronic GVHD. Seven months after the transplant the patient was in excellent general condition. The hypothesis is advanced that when two HLA extended haplotypes are shared by donors and recipients, particularly in homozygosity, this is a very favourable immunogenetic condition in unrelated BMT. JF - Bone marrow transplantation AU - Contu, L AU - La Nasa, G AU - Arras, M AU - Ledda, A AU - Pizzati, A AU - Vacca, A AU - Carcassi, C AU - Floris, L AU - Porcella, R AU - Orrù, S AD - Istituto di Clinica Medica, Università di Cagliari, Italy. Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 329 EP - 331 VL - 13 IS - 3 SN - 0268-3369, 0268-3369 KW - HLA Antigens KW - 0 KW - Cyclophosphamide KW - 8N3DW7272P KW - Busulfan KW - G1LN9045DK KW - Index Medicus KW - HLA Antigens -- genetics KW - Homozygote KW - Cyclophosphamide -- therapeutic use KW - Haplotypes KW - Combined Modality Therapy KW - Humans KW - Heterozygote KW - HLA Antigens -- immunology KW - Transplantation, Homologous KW - Adolescent KW - Female KW - Tissue Donors KW - Busulfan -- therapeutic use KW - beta-Thalassemia -- therapy KW - Bone Marrow Transplantation KW - beta-Thalassemia -- drug therapy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76520677?accountid=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=Bone+marrow+transplantation&rft.atitle=Successful+unrelated+bone+marrow+transplantation+in+beta-thalassaemia.&rft.au=Contu%2C+L%3BLa+Nasa%2C+G%3BArras%2C+M%3BLedda%2C+A%3BPizzati%2C+A%3BVacca%2C+A%3BCarcassi%2C+C%3BFloris%2C+L%3BPorcella%2C+R%3BOrr%C3%B9%2C+S&rft.aulast=Contu&rft.aufirst=L&rft.date=1994-03-01&rft.volume=13&rft.issue=3&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Bone+marrow+transplantation&rft.issn=02683369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1994-07-07 N1 - Date created - 1994-07-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - [Genetic effects of cosmic radiation in Drosophila melanogaster]. AN - 76311483; 11542729 AB - To examine possible effects of space radiation on living organism, we have analyzedtwo types of mutations, sex-linked recessive lethal mutations and somatic mutations, in fruit fly of the species Drosophila melanogaster. Drosophila strains used were wild type strains and a radiation-sensitive strain mei-41. Two different developmental stages of samples were sent into space; young adult males to analyze sex-linked recessive lethal mutations and about 30hr-old larvae to detect somatic mutations in wing epidermal cells. For wild type and mei-41 strains each, about 200 adult male flies and about 6,000 larvae were loaded on space shuttle Endeavour. The male flies returned from space were mated to virgin female flies of a tester strain, and the presence of the lethal mutations was analyzed at F2 generation. The frequencies of sex-linked recessive lethal mutations in flight groups were 2 and 3 times higher for wild type Canton-S and mei-4 1, respectively, than those in ground control groups. Most larvae sent to space emerged as adult flies within about 10 days after the landing. The presence of wing-hair somatic mutations, which give morphological change in hairs growing on the surface of wing epidermal cells, was analyzed under microscope. In wild type strain Muller-5, the frequency of wing hair mutant spots in flight group was about 1.5-fold higher than that in ground control, and in Canton-S-derived wild type strain the frequencies were similar between the two groups. By contrast, for mei-41 strain the mutation frequency was lower in flight group than in control group. The observed higher frequency of lethal mutations in the flight group might be due to a possibility that radiation effects on reproductive cells could be greatly enhanced under micro gravity. However, if this would be the case, we do not have appropriate explanation for the apparent absence of such synergistic effects on somatic wing-hair mutation system. JF - Uchu Seibutsu Kagaku AU - Hara, R AD - Radiation Biology Center, Kyoto University. Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 12 EP - 22 VL - 8 IS - 1 SN - 0914-9201, 0914-9201 KW - Space life sciences KW - manned KW - Flight Experiment KW - short duration KW - STS-47 Shuttle Project KW - Animals KW - Larva -- radiation effects KW - Mutation KW - Genes, Lethal KW - Male KW - Genes, Recessive KW - Female KW - Drosophila melanogaster -- genetics KW - Cosmic Radiation KW - Wings, Animal -- radiation effects KW - Space Flight KW - Drosophila melanogaster -- radiation effects KW - Wings, Animal -- cytology KW - Abnormalities, Radiation-Induced KW - Weightlessness UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76311483?accountid=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=Uchu+Seibutsu+Kagaku&rft.atitle=%5BGenetic+effects+of+cosmic+radiation+in+Drosophila+melanogaster%5D.&rft.au=Hara%2C+R&rft.aulast=Hara&rft.aufirst=R&rft.date=1994-03-01&rft.volume=8&rft.issue=1&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Uchu+Seibutsu+Kagaku&rft.issn=09149201&rft_id=info:doi/ LA - Japanese DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-04-08 N1 - Date created - 2000-04-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - GEN T1 - Our Mission to Planet Earth: A Guide to Teaching Earth System Science. AN - 62550235; ED402203 AB - The primary goal of this guide is for children to become familiar with the concept of cycles and to learn that some human activities can cause changes in their environment. Although the guide addresses Earth's components, it does so from the perspective of space to show the planet as a large system with interacting parts. To demonstrate on a much smaller scale how these parts work together, children are asked to build their own Earth system--a terrarium--which is used for experimentation throughout the unit. Through experimentation with the terrarium, children learn about the impact of global change on the system. After completing the lessons, students also learn how scientists use satellite technology to examine the entire planet as a whole to study global climate. They create their own models of instruments and satellites and learn about careers in earth system science. Through hands-on activities, experiments, and discussions, students practice how to identify, classify, organize, and recall information. This guide contains four units: Earth From Space; Forces of Change; Global Change; and Mission to Planet Earth. Also included is a National Aeronautics and Space Administration (NASA) resource list. (JRH) Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 71 KW - ERIC, Resources in Education (RIE) KW - Elementary Education KW - Science Process Skills KW - Earth Science KW - Environmental Education KW - Systems Approach KW - Satellites (Aerospace) KW - Science Activities KW - Conservation (Environment) KW - Science Experiments KW - Space Sciences KW - Global Approach KW - Technology KW - Hands on Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62550235?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - SuppNotes - Contains seven color photographs (lithographs) tha N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Single agglutinates; a comparative study of compositions of agglutinitic glass, whole-grain, bulk soil, and FMR AN - 52798285; 1996-076767 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Basu, A AU - Robinson, R AU - McKay, D S AU - Blanchard, D P AU - Morris, R V AU - Wentworth, S J AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 71 EP - 72 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - lunar samples KW - volcanic rocks KW - glasses KW - Moon KW - igneous rocks KW - lunar sample 61181 KW - chemical composition KW - lunar soils KW - agglutinates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52798285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Single+agglutinates%3B+a+comparative+study+of+compositions+of+agglutinitic+glass%2C+whole-grain%2C+bulk+soil%2C+and+FMR&rft.au=Basu%2C+A%3BRobinson%2C+R%3BMcKay%2C+D+S%3BBlanchard%2C+D+P%3BMorris%2C+R+V%3BWentworth%2C+S+J%3BAnonymous&rft.aulast=Basu&rft.aufirst=A&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - agglutinates; chemical composition; glasses; igneous rocks; lunar sample 61181; lunar samples; lunar soils; Moon; volcanic rocks ER - TY - JOUR T1 - Volcano morphometry and volume scaling on Venus AN - 52795837; 1996-076935 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garvin, J B AU - Williams, R S, Jr AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 409 EP - 410 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - Earth KW - Venus KW - shape analysis KW - morphometry KW - Mars KW - terrestrial planets KW - planets KW - volcanic features KW - volume KW - surface features KW - volcanoes KW - interplanetary comparison KW - terrestrial comparison KW - image analysis KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52795837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Volcano+morphometry+and+volume+scaling+on+Venus&rft.au=Garvin%2C+J+B%3BWilliams%2C+R+S%2C+Jr%3BAnonymous&rft.aulast=Garvin&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Earth; image analysis; interplanetary comparison; Mars; morphometry; planets; shape analysis; surface features; terrestrial comparison; terrestrial planets; Venus; volcanic features; volcanoes; volume ER - TY - JOUR T1 - Grain rims on ilmenite in the lunar regolith; comparison to vapor deposits on regolith silicates AN - 52795514; 1996-076860 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Christoffersen, R AU - McKay, D S AU - Keller, L P AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 259 EP - 260 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - silicates KW - reaction rims KW - ilmenite KW - lunar samples KW - Moon KW - oxides KW - zoning KW - regolith KW - evolution KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52795514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Grain+rims+on+ilmenite+in+the+lunar+regolith%3B+comparison+to+vapor+deposits+on+regolith+silicates&rft.au=Christoffersen%2C+R%3BMcKay%2C+D+S%3BKeller%2C+L+P%3BAnonymous&rft.aulast=Christoffersen&rft.aufirst=R&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - evolution; ilmenite; lunar samples; Moon; oxides; reaction rims; regolith; silicates; zoning ER - TY - JOUR T1 - Reduction of lunar mare soil and pyroclastic glass AN - 52794633; 1996-076743 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Allen, C C AU - Morris, R V AU - McKay, D S AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 23 EP - 24 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - ilmenite KW - experimental studies KW - volcanic rocks KW - glasses KW - Moon KW - igneous rocks KW - maria KW - pyroclastics KW - lunar samples KW - chemical reactions KW - oxides KW - reduction KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52794633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Reduction+of+lunar+mare+soil+and+pyroclastic+glass&rft.au=Allen%2C+C+C%3BMorris%2C+R+V%3BMcKay%2C+D+S%3BAnonymous&rft.aulast=Allen&rft.aufirst=C&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical reactions; experimental studies; glasses; igneous rocks; ilmenite; lunar samples; lunar soils; maria; Moon; oxides; pyroclastics; reduction; volcanic rocks ER - TY - JOUR T1 - High resolution transmission electron microscopy (HRTEM) of nanophase ferric oxides AN - 52794543; 1996-076949 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Golden, D C AU - Morris, R V AU - Ming, D W AU - Lauer, H V, Jr AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 437 EP - 438 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - transmission electron microscopy KW - high-resolution methods KW - iron oxides KW - Mars KW - iron KW - terrestrial planets KW - planets KW - ferric iron KW - metals KW - natural analogs KW - oxides KW - spectra KW - 04:Extraterrestrial geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52794543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=High+resolution+transmission+electron+microscopy+%28HRTEM%29+of+nanophase+ferric+oxides&rft.au=Golden%2C+D+C%3BMorris%2C+R+V%3BMing%2C+D+W%3BLauer%2C+H+V%2C+Jr%3BAnonymous&rft.aulast=Golden&rft.aufirst=D&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=437&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ferric iron; high-resolution methods; iron; iron oxides; Mars; metals; natural analogs; oxides; planets; spectra; terrestrial planets; transmission electron microscopy ER - TY - JOUR T1 - (super 39) Ar- (super 40) Ar ages of four ureilites AN - 52794299; 1996-076800 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bogard, D D AU - Garrison, D H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 137 EP - 138 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - Ar/Ar KW - stony meteorites KW - Precambrian KW - parent bodies KW - Haveroe Meteorite KW - ureilite KW - achondrites KW - meteorites KW - Kenna Meteorite KW - dates KW - absolute age KW - Archean KW - Novo Urei Meteorite KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52794299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=%28super+39%29+Ar-+%28super+40%29+Ar+ages+of+four+ureilites&rft.au=Bogard%2C+D+D%3BGarrison%2C+D+H%3BAnonymous&rft.aulast=Bogard&rft.aufirst=D&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; Ar/Ar; Archean; dates; Haveroe Meteorite; Kenna Meteorite; meteorites; Novo Urei Meteorite; parent bodies; Precambrian; stony meteorites; ureilite ER - TY - JOUR T1 - The occurrence of blue luminescing enstatite in E3 and E4 chondrites AN - 52794248; 1996-076890 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - DeHart, John M AU - Lofgren, Gary E AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 319 EP - 320 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - silicates KW - meteorites KW - pyroxene group KW - stony meteorites KW - chondrules KW - enstatite chondrites KW - orthopyroxene KW - chondrites KW - enstatite KW - cathodoluminescence KW - chain silicates KW - 05B:Petrology of meteorites and tektites KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52794248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+occurrence+of+blue+luminescing+enstatite+in+E3+and+E4+chondrites&rft.au=DeHart%2C+John+M%3BLofgren%2C+Gary+E%3BAnonymous&rft.aulast=DeHart&rft.aufirst=John&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cathodoluminescence; chain silicates; chondrites; chondrules; enstatite; enstatite chondrites; meteorites; orthopyroxene; pyroxene group; silicates; stony meteorites ER - TY - JOUR T1 - On the possible role of elemental carbon in the formation of reduced chondrules AN - 52794095; 1996-076870 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Connolly, Harold C, Jr AU - Hewins, Roger H AU - Ash, Richard D AU - Lofgren, Gary E AU - Zanda, Brigitte AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 279 EP - 280 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - silicates KW - experimental studies KW - siliceous composition KW - olivine group KW - cosmochemistry KW - San Carlos Olivine KW - melts KW - solar nebula KW - nesosilicates KW - genesis KW - meteorites KW - chondrules KW - carbon KW - olivine KW - orthosilicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52794095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=On+the+possible+role+of+elemental+carbon+in+the+formation+of+reduced+chondrules&rft.au=Connolly%2C+Harold+C%2C+Jr%3BHewins%2C+Roger+H%3BAsh%2C+Richard+D%3BLofgren%2C+Gary+E%3BZanda%2C+Brigitte%3BAnonymous&rft.aulast=Connolly&rft.aufirst=Harold&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbon; chondrules; cosmochemistry; experimental studies; genesis; melts; meteorites; nesosilicates; olivine; olivine group; orthosilicates; San Carlos Olivine; silicates; siliceous composition; solar nebula ER - TY - JOUR T1 - Calorimetric thermometry of meteoritic troilite; preliminary thermometer relationships AN - 52793380; 1996-076744 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Allton, Judith H AU - Wentworth, Susan J AU - Gooding, James L AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 25 EP - 26 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - meteorites KW - experimental studies KW - geologic thermometry KW - transformations KW - thermodynamic properties KW - thermal history KW - sulfides KW - troilite KW - calorimetry 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/52793380?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Calorimetric+thermometry+of+meteoritic+troilite%3B+preliminary+thermometer+relationships&rft.au=Allton%2C+Judith+H%3BWentworth%2C+Susan+J%3BGooding%2C+James+L%3BAnonymous&rft.aulast=Allton&rft.aufirst=Judith&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - calorimetry; experimental studies; geologic thermometry; meteorites; sulfides; thermal history; thermodynamic properties; transformations; troilite ER - TY - JOUR T1 - Impact basins in southern Daedalia, Mars; evidence for clustered impactors? AN - 52793133; 1996-076924 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Frey, Herbert AU - Roark, James H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 387 EP - 388 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - terrestrial planets KW - genesis KW - planets KW - impact features KW - surface features KW - basins KW - Mars KW - impacts KW - Daedalia Planum KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52793133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Impact+basins+in+southern+Daedalia%2C+Mars%3B+evidence+for+clustered+impactors%3F&rft.au=Frey%2C+Herbert%3BRoark%2C+James+H%3BAnonymous&rft.aulast=Frey&rft.aufirst=Herbert&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basins; Daedalia Planum; genesis; impact features; impacts; Mars; planets; surface features; terrestrial planets ER - TY - JOUR T1 - Quantifying shapes of volcanoes on Venus AN - 52793087; 1996-076933 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garvin, J B AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 405 EP - 406 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - terrestrial planets KW - morphology KW - planets KW - quantitative analysis KW - Venus KW - surface features KW - volcanoes KW - morphometry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52793087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Quantifying+shapes+of+volcanoes+on+Venus&rft.au=Garvin%2C+J+B%3BAnonymous&rft.aulast=Garvin&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=405&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - morphology; morphometry; planets; quantitative analysis; surface features; terrestrial planets; Venus; volcanoes ER - TY - JOUR T1 - Remote geochemical experiment package for Discovery class missions AN - 52792887; 1996-076864 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Clark, Pamela E AU - Evans, Larry G AU - Trombka, Jacob I AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 267 EP - 268 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - experimental studies KW - Discovery Shuttle KW - gamma-ray spectra KW - space photography KW - planetology KW - applications KW - spectra KW - X-ray spectra KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52792887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Remote+geochemical+experiment+package+for+Discovery+class+missions&rft.au=Clark%2C+Pamela+E%3BEvans%2C+Larry+G%3BTrombka%2C+Jacob+I%3BAnonymous&rft.aulast=Clark&rft.aufirst=Pamela&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - applications; Discovery Shuttle; experimental studies; gamma-ray spectra; instruments; planetology; remote sensing; space photography; spectra; X-ray spectra ER - TY - JOUR T1 - Eureka!! Aerogel capture of meteoroids in space AN - 52792656; 1996-076823 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Brownlee, D E AU - Hoerz, F AU - Hrubsch, L AU - McDonnell, J A M AU - Tsou, P AU - Williams, J AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 183 EP - 184 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - cratering KW - experimental studies KW - aerogels KW - extraterrestrial geology KW - meteoroids KW - impacts KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52792656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Eureka%21%21+Aerogel+capture+of+meteoroids+in+space&rft.au=Brownlee%2C+D+E%3BHoerz%2C+F%3BHrubsch%2C+L%3BMcDonnell%2C+J+A+M%3BTsou%2C+P%3BWilliams%2C+J%3BAnonymous&rft.aulast=Brownlee&rft.aufirst=D&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerogels; cratering; experimental studies; extraterrestrial geology; impacts; meteoroids; particles ER - TY - JOUR T1 - A mineralogical instrument for planetary applications AN - 52792494; 1996-076792 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Blake, David F AU - Vaniman, David T AU - Bish, David L AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 121 EP - 122 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - soils KW - mineral composition KW - X-ray fluorescence KW - sampling KW - planetology KW - applications KW - instruments KW - design KW - X-ray diffraction analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52792494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+mineralogical+instrument+for+planetary+applications&rft.au=Blake%2C+David+F%3BVaniman%2C+David+T%3BBish%2C+David+L%3BAnonymous&rft.aulast=Blake&rft.aufirst=David&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - applications; design; instruments; mineral composition; planetology; sampling; soils; X-ray diffraction analysis; X-ray fluorescence ER - TY - JOUR T1 - Craters in aluminum 1100 targets using glass projectiles at 1-7 km/s AN - 52792453; 1996-076785 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bernhard, R P AU - See, T H AU - Hoerz, F AU - Cintala, M J AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 107 EP - 108 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - cratering KW - experimental studies KW - projectiles KW - impacts KW - simulation KW - interplanetary dust KW - craters KW - metals KW - aluminum KW - natural analogs KW - velocity KW - applications KW - glass materials KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52792453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Craters+in+aluminum+1100+targets+using+glass+projectiles+at+1-7+km%2Fs&rft.au=Bernhard%2C+R+P%3BSee%2C+T+H%3BHoerz%2C+F%3BCintala%2C+M+J%3BAnonymous&rft.aulast=Bernhard&rft.aufirst=R&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aluminum; applications; cratering; craters; experimental studies; glass materials; impacts; interplanetary dust; metals; natural analogs; projectiles; simulation; velocity ER - TY - JOUR T1 - New prospects for analyzing lunar pyroclastic glass AN - 52792418; 1996-076742 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Allen, C C AU - Keller, L P AU - Bradley, J P AU - Brownlee, D E AU - McKay, D S AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 21 EP - 22 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - imagery KW - volcanic rocks KW - glasses KW - Moon KW - igneous rocks KW - multispectral analysis KW - pyroclastics KW - photometry KW - lunar samples KW - microscope methods KW - Clementine Program KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52792418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+prospects+for+analyzing+lunar+pyroclastic+glass&rft.au=Allen%2C+C+C%3BKeller%2C+L+P%3BBradley%2C+J+P%3BBrownlee%2C+D+E%3BMcKay%2C+D+S%3BAnonymous&rft.aulast=Allen&rft.aufirst=C&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Clementine Program; glasses; igneous rocks; imagery; lunar samples; lunar soils; microscope methods; Moon; multispectral analysis; photometry; pyroclastics; volcanic rocks ER - TY - JOUR T1 - Shoemaker-Levy 9 and the tidal disruption of comets AN - 52792402; 1996-076782 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Benz, W AU - Asphaug, E AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 101 EP - 102 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - tides KW - fragmentation KW - comets KW - stress KW - mechanics KW - Shoemaker-Levy 9 Comet KW - tensile strength KW - fracturing KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52792402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Shoemaker-Levy+9+and+the+tidal+disruption+of+comets&rft.au=Benz%2C+W%3BAsphaug%2C+E%3BAnonymous&rft.aulast=Benz&rft.aufirst=W&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - comets; fracturing; fragmentation; mechanics; particles; Shoemaker-Levy 9 Comet; stress; tensile strength; tides ER - TY - JOUR T1 - Mesoscale roughness of Venus AN - 52791734; 1996-076934 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garvin, J B AU - Frawley, J J AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 407 EP - 408 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - terrestrial planets KW - surface properties KW - planets KW - Venus KW - roughness KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52791734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mesoscale+roughness+of+Venus&rft.au=Garvin%2C+J+B%3BFrawley%2C+J+J%3BAnonymous&rft.aulast=Garvin&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - image analysis; planets; roughness; surface properties; terrestrial planets; Venus ER - TY - JOUR T1 - What initiated planetesimal formation? AN - 52791057; 1996-076884 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cuzzi, J N AU - Dobrovolskis, A R AU - Hogan, R C AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 307 EP - 308 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - solar nebula KW - genesis KW - meteorites KW - accretion KW - planetology KW - mechanism KW - Goldreich-Ward model KW - planetesimals KW - particles KW - evolution KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52791057?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=What+initiated+planetesimal+formation%3F&rft.au=Cuzzi%2C+J+N%3BDobrovolskis%2C+A+R%3BHogan%2C+R+C%3BAnonymous&rft.aulast=Cuzzi&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=307&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accretion; evolution; genesis; Goldreich-Ward model; mechanism; meteorites; particles; planetesimals; planetology; solar nebula ER - TY - JOUR T1 - Solar proton produced neon in shergottite meteorites AN - 52790077; 1996-076932 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garrison, D H AU - Rao, M N AU - Bogard, D D AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 403 EP - 404 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - stony meteorites KW - isotopes KW - Martian meteorites KW - isotope ratios KW - Ne-22/Ne-21 KW - protons KW - Ne-22/Ne-20 KW - achondrites KW - stable isotopes KW - SNC Meteorites KW - meteorites KW - Allan Hills Meteorites KW - shergottite KW - ALHA 77005 KW - noble gases KW - neon KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52790077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Solar+proton+produced+neon+in+shergottite+meteorites&rft.au=Garrison%2C+D+H%3BRao%2C+M+N%3BBogard%2C+D+D%3BAnonymous&rft.aulast=Garrison&rft.aufirst=D&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=403&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 22 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; ALHA 77005; Allan Hills Meteorites; isotope ratios; isotopes; Martian meteorites; meteorites; Ne-22/Ne-20; Ne-22/Ne-21; neon; noble gases; protons; shergottite; SNC Meteorites; stable isotopes; stony meteorites ER - TY - JOUR T1 - Block distributions on the lunar surface; a comparison between measurements obtained from surface and orbital photography AN - 52789767; 1996-076861 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cintala, Mark J AU - McBride, Kathleen M AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 261 EP - 262 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - morphology KW - Moon KW - surface features KW - photography KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52789767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Block+distributions+on+the+lunar+surface%3B+a+comparison+between+measurements+obtained+from+surface+and+orbital+photography&rft.au=Cintala%2C+Mark+J%3BMcBride%2C+Kathleen+M%3BAnonymous&rft.aulast=Cintala&rft.aufirst=Mark&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Moon; morphology; photography; remote sensing; surface features ER - TY - JOUR T1 - First Galileo image of Asteroid 243 Ida AN - 52788553; 1996-076978 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chapman, C R AU - Belton, M J S AU - Veverka, J AU - Neukum, G AU - Head, J AU - Greeley, R AU - Klaasen, K AU - Morrison, D AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 237 EP - 238 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - morphology KW - Ida Asteroid KW - craters KW - asteroids KW - Galileo Program KW - description KW - S-type asteroids KW - regolith KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52788553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=First+Galileo+image+of+Asteroid+243+Ida&rft.au=Chapman%2C+C+R%3BBelton%2C+M+J+S%3BVeverka%2C+J%3BNeukum%2C+G%3BHead%2C+J%3BGreeley%2C+R%3BKlaasen%2C+K%3BMorrison%2C+D%3BAnonymous&rft.aulast=Chapman&rft.aufirst=C&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; craters; description; Galileo Program; Ida Asteroid; image analysis; morphology; regolith; S-type asteroids ER - TY - JOUR T1 - Application of an alklylammonium method for characterization of phyllosilicates in CI chondrites AN - 52787389; 1996-076948 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Golden, D C AU - Ming, D W AU - Zolensky, M E AU - Yang, S V AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 435 EP - 436 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - silicates KW - CI chondrites KW - alteration KW - stony meteorites KW - saponite KW - parent bodies KW - Ivuna Meteorite KW - crystal structure KW - carbonaceous chondrites KW - nontronite KW - Alais Meteorite KW - clay minerals KW - meteorites KW - Kaidun Meteorite KW - sheet silicates KW - chondrites KW - 05B:Petrology of meteorites and tektites KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52787389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Application+of+an+alklylammonium+method+for+characterization+of+phyllosilicates+in+CI+chondrites&rft.au=Golden%2C+D+C%3BMing%2C+D+W%3BZolensky%2C+M+E%3BYang%2C+S+V%3BAnonymous&rft.aulast=Golden&rft.aufirst=D&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=435&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Alais Meteorite; alteration; carbonaceous chondrites; chondrites; CI chondrites; clay minerals; crystal structure; Ivuna Meteorite; Kaidun Meteorite; meteorites; nontronite; parent bodies; saponite; sheet silicates; silicates; stony meteorites ER - TY - JOUR T1 - Alteration and formation of rims on the CM parent body AN - 52786383; 1996-076822 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Browning, Lauren B AU - McSween, Harry Y, Jr AU - Zolensky, Michael AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 181 EP - 182 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - alteration KW - stony meteorites KW - parent bodies KW - carbonaceous chondrites KW - reaction rims KW - genesis KW - meteorites KW - water-rock interaction KW - chondrules KW - CM chondrites KW - chondrites KW - zoning KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52786383?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Alteration+and+formation+of+rims+on+the+CM+parent+body&rft.au=Browning%2C+Lauren+B%3BMcSween%2C+Harry+Y%2C+Jr%3BZolensky%2C+Michael%3BAnonymous&rft.aulast=Browning&rft.aufirst=Lauren&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alteration; carbonaceous chondrites; chondrites; chondrules; CM chondrites; genesis; meteorites; parent bodies; reaction rims; stony meteorites; water-rock interaction; zoning ER - TY - JOUR T1 - Lunar mineral feedstocks from rocks and soils; X-ray digital imaging in resource evaluation AN - 52786118; 1996-076849 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chambers, John G AU - Patchen, Allan AU - Taylor, Lawrence A AU - Higgins, Stefan J AU - McKay, David S AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 235 EP - 236 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - lunar samples KW - imagery KW - X-ray data KW - Moon KW - raw materials KW - minerals KW - mineral resources KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52786118?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+mineral+feedstocks+from+rocks+and+soils%3B+X-ray+digital+imaging+in+resource+evaluation&rft.au=Chambers%2C+John+G%3BPatchen%2C+Allan%3BTaylor%2C+Lawrence+A%3BHiggins%2C+Stefan+J%3BMcKay%2C+David+S%3BAnonymous&rft.aulast=Chambers&rft.aufirst=John&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - imagery; lunar samples; lunar soils; mineral resources; minerals; Moon; raw materials; X-ray data ER - TY - JOUR T1 - Measuring track densities in lunar grains using image analysis AN - 52786007; 1996-076794 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Blanford, G E AU - McKay, D S AU - Bernhard, R P AU - Schulz, C K AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 125 EP - 126 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - particle tracks KW - lunar samples KW - Moon KW - lunar sample 60009 KW - image analysis KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52786007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Measuring+track+densities+in+lunar+grains+using+image+analysis&rft.au=Blanford%2C+G+E%3BMcKay%2C+D+S%3BBernhard%2C+R+P%3BSchulz%2C+C+K%3BAnonymous&rft.aulast=Blanford&rft.aufirst=G&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=125&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - image analysis; lunar sample 60009; lunar samples; lunar soils; Moon; particle tracks ER - TY - JOUR T1 - The chemical reactivity of the Martian soil and implications for future missions AN - 51668440; 2005-069419 JF - Icarus (Online) AU - Zent, Aaron P AU - McKay, Christopher P Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 146 EP - 157 PB - Elsevier VL - 108 IS - 1 SN - 1090-2643, 1090-2643 KW - soils KW - experimental studies KW - oxygen KW - water vapor KW - Viking Program KW - Mars KW - porosity KW - measurement KW - terrestrial planets KW - planets KW - reactivity KW - mineral composition KW - chemical reactions KW - gas exchange experiment KW - thermally labile oxidant KW - planetology KW - GEx KW - aerosols KW - geochemistry KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51668440?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=The+chemical+reactivity+of+the+Martian+soil+and+implications+for+future+missions&rft.au=Zent%2C+Aaron+P%3BMcKay%2C+Christopher+P&rft.aulast=Zent&rft.aufirst=Aaron&rft.date=1994-03-01&rft.volume=108&rft.issue=1&rft.spage=146&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1994.1047 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 54 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aerosols; chemical reactions; experimental studies; gas exchange experiment; geochemistry; GEx; Mars; measurement; mineral composition; oxygen; particles; planetology; planets; porosity; reactivity; soils; terrestrial planets; thermally labile oxidant; Viking Program; water vapor DO - http://dx.doi.org/10.1006/icar.1994.1047 ER - TY - JOUR T1 - High spatial resolution telescopic multispectral imaging and spectroscopy of the Moon; I, The Serenitatis/Tranquillitatis border region AN - 51320827; 1996-076772 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bell, J F, III AU - Hawke, B R AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 81 EP - 82 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - multispectral analysis KW - surface properties KW - high-resolution methods KW - imagery KW - Mare Tranquillitatis KW - Moon KW - spectra KW - reflectance KW - Mare Serenitatis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51320827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=High+spatial+resolution+telescopic+multispectral+imaging+and+spectroscopy+of+the+Moon%3B+I%2C+The+Serenitatis%2FTranquillitatis+border+region&rft.au=Bell%2C+J+F%2C+III%3BHawke%2C+B+R%3BAnonymous&rft.aulast=Bell&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - high-resolution methods; imagery; Mare Serenitatis; Mare Tranquillitatis; Moon; multispectral analysis; reflectance; spectra; surface properties ER - TY - JOUR T1 - Mineralogy of an unusual CM clast in the Kaidun Meteorite AN - 50413943; 2009-059520 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zolensky, Michael E AU - Ivanov, A V AU - Yang, S V AU - Barrett, R A AU - Browning, L AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1565 EP - 1566 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - silicates KW - breccia KW - stony meteorites KW - mantle KW - clasts KW - TEM data KW - observations KW - meteorites KW - Kaidun Meteorite KW - pyroxene group KW - mineral composition KW - orthopyroxene KW - mineral assemblages KW - chondrites KW - enstatite KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413943?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogy+of+an+unusual+CM+clast+in+the+Kaidun+Meteorite&rft.au=Zolensky%2C+Michael+E%3BIvanov%2C+A+V%3BYang%2C+S+V%3BBarrett%2C+R+A%3BBrowning%2C+L%3BAnonymous&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1565&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - breccia; chain silicates; chondrites; clasts; enstatite; Kaidun Meteorite; mantle; meteorites; mineral assemblages; mineral composition; observations; orthopyroxene; pyroxene group; silicates; stony meteorites; TEM data ER - TY - JOUR T1 - Inhomogeneous distribution of materials in lodranites-acapulcoites and IAB irons and their common formation processes AN - 50413761; 2009-059425 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Takeda, Hiroshi AU - Otsuki, Mayumi AU - Yamaguchi, Akira AU - Miyamoto, M AU - Otsuki, Masayuki AU - Tomobuchi, M AU - Hiroi, Takahiro AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1375 EP - 1376 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - stony irons KW - processes KW - stony meteorites KW - lodranite KW - distribution KW - spatial distribution KW - meteorites KW - materials KW - iron meteorites KW - acapulcoite KW - heterogeneity KW - chemical composition KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50413761?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Inhomogeneous+distribution+of+materials+in+lodranites-acapulcoites+and+IAB+irons+and+their+common+formation+processes&rft.au=Takeda%2C+Hiroshi%3BOtsuki%2C+Mayumi%3BYamaguchi%2C+Akira%3BMiyamoto%2C+M%3BOtsuki%2C+Masayuki%3BTomobuchi%2C+M%3BHiroi%2C+Takahiro%3BAnonymous&rft.aulast=Takeda&rft.aufirst=Hiroshi&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1375&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - acapulcoite; chemical composition; distribution; heterogeneity; iron meteorites; lodranite; materials; meteorites; processes; spatial distribution; stony irons; stony meteorites ER - TY - JOUR T1 - The mass of Mars, Phobos, and Deimos, from the analysis of the Mariner 9 and Viking Orbiter tracking data AN - 50412476; 2009-059383 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Smith, D E AU - Lemoine, F G AU - Fricke, S K AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1291 EP - 1292 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - terrestrial planets KW - Phobos Satellite KW - planets KW - Mariner 9 KW - Mariner Program KW - Viking Program KW - Mars KW - Mars Orbiter Camera KW - satellites KW - Deimos Satellite KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412476?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+mass+of+Mars%2C+Phobos%2C+and+Deimos%2C+from+the+analysis+of+the+Mariner+9+and+Viking+Orbiter+tracking+data&rft.au=Smith%2C+D+E%3BLemoine%2C+F+G%3BFricke%2C+S+K%3BAnonymous&rft.aulast=Smith&rft.aufirst=D&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1291&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Deimos Satellite; Mariner 9; Mariner Program; Mars; Mars Orbiter Camera; observations; Phobos Satellite; planets; satellites; terrestrial planets; Viking Program ER - TY - JOUR T1 - Chondrule magnetic properties AN - 50412232; 2009-059471 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wasilewski, P J AU - O'Bryan, M V AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1467 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - meteorites KW - saturation magnetization KW - demagnetization KW - remanent magnetization KW - chondrules KW - magnetization KW - paleomagnetism KW - properties KW - magnetic properties KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412232?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chondrule+magnetic+properties&rft.au=Wasilewski%2C+P+J%3BO%27Bryan%2C+M+V%3BAnonymous&rft.aulast=Wasilewski&rft.aufirst=P&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1467&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chondrules; demagnetization; magnetic properties; magnetization; meteorites; paleomagnetism; properties; remanent magnetization; saturation magnetization ER - TY - JOUR T1 - More shock recovery experiments on mesosiderite analogs AN - 50412054; 2009-059323 AB - Mesosiderites, a small but unique group of stony-iron meteorites with affinities to howardites, eucrites, and pallasites, remain enigmatic in terms of their petrogenesis. They are composed of approximately equal weight proportions of Fe-Ni metal plus troilite and gabbroic, basaltic, and orthopyroxenitic materials. The metal and silicates, which display variable grain sizes and shapes, are delicately intermingled, forming irregular grain boundaries that have been attributed to a wide range of origins from subsolidus metamorphism to supersolidus igneous processes. Perhaps the most relevant question regarding the petrogenesis of mesosiderites is: what is the source and duration of heating that could produce the unequilibrated textures and chemistry of these meteorites. A leading candidate appears to be impacts of metallic core fragments with a differentiated asteroidal surface. This provides not only a suitable source of heat, but also the metal component uniquely required by mesosiderites. A series of shock recovery experiments on mesosiderite analogs has been continued. Textural and chemical similarities have been found that support an impact-derived origin for these unusual meteorites. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rowan, L R AU - Mittlefehldt, D W AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1167 EP - 1168 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - stony irons KW - silicates KW - meteorites KW - experimental studies KW - stony meteorites KW - howardite KW - mesosiderite KW - mineral assemblages KW - achondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=More+shock+recovery+experiments+on+mesosiderite+analogs&rft.au=Rowan%2C+L+R%3BMittlefehldt%2C+D+W%3BAnonymous&rft.aulast=Rowan&rft.aufirst=L&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1167&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2009-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; experimental studies; howardite; mesosiderite; meteorites; mineral assemblages; silicates; stony irons; stony meteorites ER - TY - JOUR T1 - Innovative instrumentation for mineralogical and element analyses of solid extraterrestrial surfaces; the backscatter Mossbauer spectrometer/X-ray fluorescence analyzer (BaMS/XRF) AN - 50412028; 2009-059368 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shelfer, T D AU - Morris, Richard V AU - Nguyen, T AU - Agresti, D G AU - Wills, E L AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1261 EP - 1262 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - mineral composition KW - X-ray fluorescence KW - X-ray analysis KW - planetology KW - Mossbauer spectroscopy KW - chemical composition KW - spectroscopy KW - instruments KW - backscattering KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50412028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Innovative+instrumentation+for+mineralogical+and+element+analyses+of+solid+extraterrestrial+surfaces%3B+the+backscatter+Mossbauer+spectrometer%2FX-ray+fluorescence+analyzer+%28BaMS%2FXRF%29&rft.au=Shelfer%2C+T+D%3BMorris%2C+Richard+V%3BNguyen%2C+T%3BAgresti%2C+D+G%3BWills%2C+E+L%3BAnonymous&rft.aulast=Shelfer&rft.aufirst=T&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1261&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - backscattering; chemical composition; instruments; mineral composition; Mossbauer spectroscopy; planetology; spectroscopy; X-ray analysis; X-ray fluorescence ER - TY - JOUR T1 - A quick look method of detecting water of hydration in small solar system bodies AN - 50411811; 2009-059457 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Vilas, F AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1439 EP - 1440 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - water KW - solar system KW - meteorites KW - hydration KW - stony meteorites KW - asteroids KW - equations KW - chondrites KW - chemical composition KW - observations KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+quick+look+method+of+detecting+water+of+hydration+in+small+solar+system+bodies&rft.au=Vilas%2C+F%3BAnonymous&rft.aulast=Vilas&rft.aufirst=F&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1439&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; chemical composition; chondrites; equations; hydration; meteorites; observations; solar system; stony meteorites; water ER - TY - JOUR T1 - Windblown sand on Mars; the effect of saltation threshold on drift potentials derived from Mars GCM AN - 50411592; 2009-059498 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Xu, P AU - Greeley, Ronald AU - Williams, S AU - Pollack, J B AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1521 EP - 1522 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - processes KW - eolian features KW - sand KW - general circulation models KW - clastic sediments KW - Mars KW - drift KW - simulation KW - observations KW - terrestrial planets KW - planets KW - saltation KW - sediments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Windblown+sand+on+Mars%3B+the+effect+of+saltation+threshold+on+drift+potentials+derived+from+Mars+GCM&rft.au=Xu%2C+P%3BGreeley%2C+Ronald%3BWilliams%2C+S%3BPollack%2C+J+B%3BAnonymous&rft.aulast=Xu&rft.aufirst=P&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1521&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - clastic sediments; drift; eolian features; general circulation models; Mars; observations; planets; processes; saltation; sand; sediments; simulation; terrestrial planets ER - TY - JOUR T1 - Thermal emission measurements (5-25) mu ) of Hawaiian palagonitic soils with implications for Mars AN - 50411554; 2009-059320 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Roush, Ted L AU - Bell, James F, III AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1161 EP - 1162 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - United States KW - volcanic rocks KW - glasses KW - igneous rocks KW - Hawaii KW - Mars KW - East Pacific Ocean Islands KW - palagonite KW - observations KW - emission spectra KW - terrestrial planets KW - planets KW - Oceania KW - thermal emission KW - spectra KW - Polynesia KW - mineral assemblages KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Thermal+emission+measurements+%285-25%29+mu+%29+of+Hawaiian+palagonitic+soils+with+implications+for+Mars&rft.au=Roush%2C+Ted+L%3BBell%2C+James+F%2C+III%3BAnonymous&rft.aulast=Roush&rft.aufirst=Ted&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1161&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 31 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - East Pacific Ocean Islands; emission spectra; glasses; Hawaii; igneous rocks; Mars; mineral assemblages; observations; Oceania; palagonite; planets; Polynesia; spectra; terrestrial planets; thermal emission; United States; volcanic rocks ER - TY - JOUR T1 - Purity & cleanness of aerogel as a cosmic dust capture medium AN - 50411520; 2009-059448 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Tsou, P AU - Fleming, R H AU - Lindley, P M AU - Craig, A Y AU - Blake, D AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1421 EP - 1422 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - experimental studies KW - cosmic dust KW - aerogel KW - chemical composition KW - research KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Purity+%26amp%3B+cleanness+of+aerogel+as+a+cosmic+dust+capture+medium&rft.au=Tsou%2C+P%3BFleming%2C+R+H%3BLindley%2C+P+M%3BCraig%2C+A+Y%3BBlake%2C+D%3BAnonymous&rft.aulast=Tsou&rft.aufirst=P&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1421&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerogel; chemical composition; cosmic dust; experimental studies; observations; research ER - TY - JOUR T1 - The temperature of nitrogen on Pluto AN - 50411515; 2009-059447 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Brown, R H AU - Cruikshank, D P AU - Owen, T C AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1419 EP - 1420 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - models KW - Pluto KW - dwarf planets KW - temperature KW - observations KW - nitrogen KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+nitrogen+on+Pluto&rft.au=Brown%2C+R+H%3BCruikshank%2C+D+P%3BOwen%2C+T+C%3BAnonymous&rft.aulast=Brown&rft.aufirst=R&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1419&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - dwarf planets; models; nitrogen; observations; Pluto; temperature ER - TY - JOUR T1 - The anatomy of a cluster IDP; I, Carbon abundance, bulk chemistry and mineralogy of fragments from L2008#5 AN - 50411461; 2009-059434 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Thomas, K L AU - Keller, L P AU - Klock, W AU - Warren, J AU - Blanford, G E AU - McKay, D S AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1393 EP - 1394 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - silicates KW - alkaline earth metals KW - magnesium KW - oxygen KW - L2008-5 KW - olivine group KW - silicon KW - interplanetary dust KW - TEM data KW - iron KW - nesosilicates KW - mineral composition KW - major elements KW - quantitative analysis KW - metals KW - carbon KW - orthosilicates KW - sulfur KW - mineral assemblages KW - heterogeneity KW - chemical composition KW - SEM data KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+anatomy+of+a+cluster+IDP%3B+I%2C+Carbon+abundance%2C+bulk+chemistry+and+mineralogy+of+fragments+from+L2008%235&rft.au=Thomas%2C+K+L%3BKeller%2C+L+P%3BKlock%2C+W%3BWarren%2C+J%3BBlanford%2C+G+E%3BMcKay%2C+D+S%3BAnonymous&rft.aulast=Thomas&rft.aufirst=K&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1393&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; carbon; chemical composition; heterogeneity; interplanetary dust; iron; L2008-5; magnesium; major elements; metals; mineral assemblages; mineral composition; nesosilicates; olivine group; orthosilicates; oxygen; particles; quantitative analysis; SEM data; silicates; silicon; sulfur; TEM data ER - TY - JOUR T1 - Mineralogy of artificially heated carbonaceous chondrites AN - 50411452; 2009-059521 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zolensky, Michael E AU - Lipschutz, Michael E AU - Hiroi, Takahiro AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1567 EP - 1568 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - silicates KW - stony meteorites KW - olivine group KW - carbonaceous chondrites KW - recrystallization KW - temperature KW - observations KW - Murchison Meteorite KW - nesosilicates KW - meteorites KW - sampling KW - orthosilicates KW - mineral assemblages KW - CM chondrites KW - chondrites KW - P-T conditions KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogy+of+artificially+heated+carbonaceous+chondrites&rft.au=Zolensky%2C+Michael+E%3BLipschutz%2C+Michael+E%3BHiroi%2C+Takahiro%3BAnonymous&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1567&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; CM chondrites; meteorites; mineral assemblages; Murchison Meteorite; nesosilicates; observations; olivine group; orthosilicates; P-T conditions; recrystallization; sampling; silicates; stony meteorites; temperature ER - TY - JOUR T1 - Preliminary description of double drive tube 68002/68001 AN - 50411451; 2009-059527 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schwarz, Carol AU - Morris, Richard V AU - Korotev, Randy L AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1223 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - craters KW - Moon KW - South Ray Crater KW - Apollo Program KW - ejecta KW - observations KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preliminary+description+of+double+drive+tube+68002%2F68001&rft.au=Schwarz%2C+Carol%3BMorris%2C+Richard+V%3BKorotev%2C+Randy+L%3BAnonymous&rft.aulast=Schwarz&rft.aufirst=Carol&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1223&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo 16; Apollo Program; craters; ejecta; Moon; observations; South Ray Crater ER - TY - JOUR T1 - Formation of fold and thrust belts on Venus due to horizontal shortening of a laterally heterogeneous lithosphere AN - 50411431; 2009-059526 AB - An outstanding question relevant to understanding the tectonics of Venus is the mechanism of formation of fold and thrust belts, such as the mountain belts that surround Lakshmi Planum in western Ishtar Terra. These structures are typically long (hundreds of km) and narrow (many tens of km), and are often located at the margins of relatively high (km-scale) topographic rises. Previous studies have attempted to explain fold and thrust belts in various areas of Venus in the context of viscous and brittle wedge theory. However, while wedge theory can explain the change in elevation from the rise to the adjacent lowland, it fails to account for a fundamental aspect of the deformation, i.e., the topographic high at the edge of the rise. In this study we quantitatively explore the hypothesis that fold and thrust belt morphology on Venus can alternatively be explained by horizontal shortening of a lithosphere that is laterally heterogeneous, due either to a change in thickness of the lithosphere or the crust. Lateral heterogeneities in lithosphere structure may arise in response to thermal thinning or extensive faulting, while variations in crustal thickness may arise due to either spatially variable melting of mantle material or by horizontal shortening of the crust. In a variable thickness lithosphere or crust that is horizontally shortened, deformation will tend to localize in the vicinity of thickness heterogeneity, resulting in a higher component of dynamic topography there as compared to elsewhere in the shortening lithosphere. This mechanism may thus provide a simple explanation for the topographic high at the edge of the rise. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zuber, M T AU - Parmentier, E M AU - Neumann, G A AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1577 EP - 1578 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - lithosphere KW - Venus KW - equations KW - observations KW - terrestrial planets KW - planets KW - crustal shortening KW - heterogeneous materials KW - viscosity KW - thrust faults KW - folds KW - fold and thrust belts KW - faults KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411431?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Formation+of+fold+and+thrust+belts+on+Venus+due+to+horizontal+shortening+of+a+laterally+heterogeneous+lithosphere&rft.au=Zuber%2C+M+T%3BParmentier%2C+E+M%3BNeumann%2C+G+A%3BAnonymous&rft.aulast=Zuber&rft.aufirst=M&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1577&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2009-01-01 N1 - Number of references - 18 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - crust; crustal shortening; equations; faults; fold and thrust belts; folds; heterogeneous materials; lithosphere; observations; planets; terrestrial planets; thrust faults; Venus; viscosity ER - TY - JOUR T1 - Advanced technology lunar telescope AN - 50411378; 2009-059488 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wilson, Thomas L AU - Chu, Wei-Kan AU - Chen, Peter C AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1501 EP - 1502 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - technology KW - Moon KW - applications KW - telescopes KW - instruments KW - temperature KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411378?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Advanced+technology+lunar+telescope&rft.au=Wilson%2C+Thomas+L%3BChu%2C+Wei-Kan%3BChen%2C+Peter+C%3BAnonymous&rft.aulast=Wilson&rft.aufirst=Thomas&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1501&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - applications; instruments; Moon; observations; technology; telescopes; temperature ER - TY - JOUR T1 - Parental magma compositions of basalts using an artificial neural network; theory AN - 50411357; 2009-059494 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Woronow, A AU - Reid, A M AU - Jones, J H AU - Pingitore, N E, Jr AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1513 EP - 1514 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - silicates KW - volcanic rocks KW - igneous rocks KW - olivine group KW - equations KW - melts KW - nesosilicates KW - theoretical studies KW - fayalite KW - magmas KW - basalts KW - parent materials KW - orthosilicates KW - neural networks KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411357?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Parental+magma+compositions+of+basalts+using+an+artificial+neural+network%3B+theory&rft.au=Woronow%2C+A%3BReid%2C+A+M%3BJones%2C+J+H%3BPingitore%2C+N+E%2C+Jr%3BAnonymous&rft.aulast=Woronow&rft.aufirst=A&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1513&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basalts; equations; fayalite; igneous rocks; magmas; melts; nesosilicates; neural networks; olivine group; orthosilicates; parent materials; silicates; theoretical studies; volcanic rocks ER - TY - JOUR T1 - Lunar horizon glow and the Clementine Mission AN - 50411352; 2009-059524 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zook, H A AU - Potter, A E AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1573 EP - 1574 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - topography KW - optical properties KW - Moon KW - Clementine Program KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+horizon+glow+and+the+Clementine+Mission&rft.au=Zook%2C+H+A%3BPotter%2C+A+E%3BAnonymous&rft.aulast=Zook&rft.aufirst=H&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1573&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Clementine Program; Moon; observations; optical properties; topography ER - TY - JOUR T1 - Simultaneous adsorption of CO (sub 2) and H (sub 2) O under Mars-like conditions and application to the evolution of the Martian climate AN - 50411326; 2009-059509 AB - The Martian regolith is the most substantial volatile reservoir on the planet; it holds CO2 as adsorbate, and can exchange that CO2 with the atmosphere-cap system over timescales of 10(exp 5) to 10(exp 6) years. The climatic response to insolation changes caused by obliquity and eccentricity variations depends in part on the total reservoir of adsorbed CO2. Previous estimates of the adsorbate inventory have been made by measuring the adsorptive behavior of one or more Mars-analyog materials, and deriving an empirical equation that described that adsorption as a function of the partial pressure of CO2 and the temperature of the regolith. The current CO2 inventory is that which satisfies adsorptive equilibrium, observed atmospheric pressure, and no permanent CO2 caps. There is laboratory evidence that H2O poisons the CO2 adsorptive capacity of most materials. No consideration of CO2 - H2O co-adsorption was given in previous estimates of the Martian CO2 inventory, although H2O is present in the vapor phase, and so as adsorbate, throughout the regolith. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zent, Aaron P AU - Quinn, Richard AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1543 EP - 1544 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - water KW - terrestrial planets KW - planets KW - partial pressure KW - Mars KW - equations KW - adsorption KW - regolith KW - climate KW - observations KW - carbon dioxide KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Simultaneous+adsorption+of+CO+%28sub+2%29+and+H+%28sub+2%29+O+under+Mars-like+conditions+and+application+to+the+evolution+of+the+Martian+climate&rft.au=Zent%2C+Aaron+P%3BQuinn%2C+Richard%3BAnonymous&rft.aulast=Zent&rft.aufirst=Aaron&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1543&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - adsorption; carbon dioxide; climate; equations; Mars; observations; partial pressure; planets; regolith; terrestrial planets; water ER - TY - JOUR T1 - The topography of Mars; a re-evaluation of current data AN - 50411277; 2009-059382 AB - Our present knowledge of the topography of Mars is completely inadequate for addressing a wide range of geophysical, geological, and atmospheric problems. The data acquired to date by several techniques has not provided us with reliable and consistent values for even the equatorial and polar radii, and large uncertainties exist in the altitudes of many of the major volcanic constructs. While much of this can be blamed on a lack of reliable data, we feel that much more could be done to improve the analysis of the present data in a consistent global system that would necessarily involve the re-analysis of early spacecraft and Earth-based data in conjunction with more recent models of Mars' gravity field. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Smith, D E AU - Zuber, M T AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1289 EP - 1290 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - terrestrial planets KW - planets KW - gravity field KW - topography KW - radar methods KW - Mars KW - observations KW - evaluation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+topography+of+Mars%3B+a+re-evaluation+of+current+data&rft.au=Smith%2C+D+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Smith&rft.aufirst=D&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1289&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2009-01-01 N1 - Number of references - 23 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - evaluation; gravity field; Mars; observations; planets; radar methods; terrestrial planets; topography ER - TY - JOUR T1 - First observation of a mass independent isotopic fractionation in a condensation reaction AN - 50411155; 2009-059432 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Thiemens, M H AU - Nelson, R AU - Dong, Q W AU - Nuth, J A, III AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1389 EP - 1390 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - processes KW - isotope fractionation KW - oxygen KW - isotopes KW - condensation KW - isotope ratios KW - O-18/O-16 KW - stable isotopes KW - observations KW - chemical reactions KW - sampling KW - interpretation KW - O-16 KW - O-17/O-16 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=First+observation+of+a+mass+independent+isotopic+fractionation+in+a+condensation+reaction&rft.au=Thiemens%2C+M+H%3BNelson%2C+R%3BDong%2C+Q+W%3BNuth%2C+J+A%2C+III%3BAnonymous&rft.aulast=Thiemens&rft.aufirst=M&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1389&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical reactions; condensation; interpretation; isotope fractionation; isotope ratios; isotopes; O-16; O-17/O-16; O-18/O-16; observations; oxygen; processes; sampling; stable isotopes ER - TY - JOUR T1 - Antarctic weathering of the CK chondrites EET9004, 90007 and 90022; nickel and sulfur mobility AN - 50411098; 2009-059317 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Romanek, C S AU - Socki, R A AU - Gibson, E K, Jr AU - Allton, J H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1155 EP - 1156 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - EET 90022 KW - carbonaceous composition KW - EET 9004 KW - stony meteorites KW - Elephant Moraine Meteorites KW - carbonaceous chondrites KW - weathering KW - meteorites KW - Antarctica KW - EET 90007 KW - metals KW - heat flow KW - nickel KW - sulfur KW - CK chondrites KW - chondrites KW - mobility KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Antarctic+weathering+of+the+CK+chondrites+EET9004%2C+90007+and+90022%3B+nickel+and+sulfur+mobility&rft.au=Romanek%2C+C+S%3BSocki%2C+R+A%3BGibson%2C+E+K%2C+Jr%3BAllton%2C+J+H%3BAnonymous&rft.aulast=Romanek&rft.aufirst=C&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1155&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Antarctica; carbonaceous chondrites; carbonaceous composition; chondrites; CK chondrites; EET 90007; EET 90022; EET 9004; heat flow; metals; meteorites; mobility; nickel; stony meteorites; sulfur; weathering; Elephant Moraine Meteorites ER - TY - JOUR T1 - Lunar LIGO and gravitational wave astronomy on the Moon AN - 50411067; 2009-059487 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wilson, Thomas L AU - LaFave, Norman AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1499 EP - 1500 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - gravity field KW - Moon KW - lunar laser interferometer gravitational wave observatory KW - applications KW - astronomy KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+LIGO+and+gravitational+wave+astronomy+on+the+Moon&rft.au=Wilson%2C+Thomas+L%3BLaFave%2C+Norman%3BAnonymous&rft.aulast=Wilson&rft.aufirst=Thomas&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1499&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - applications; astronomy; gravity field; lunar laser interferometer gravitational wave observatory; Moon; observations ER - TY - JOUR T1 - Distribution of siderophile and other trace elements in melt rock at the Chicxulub impact structure AN - 50411029; 2009-059350 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schuraytz, Benjamin C AU - Lindstrom, David J AU - Martinez, Rene R AU - Sharpton, Virgil L AU - Marin, Luis E AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1221 EP - 1222 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - impact features KW - Yucatan Peninsula KW - siderophile elements KW - distribution KW - melts KW - spatial distribution KW - Mexico KW - impact craters KW - Chicxulub Crater KW - mineral assemblages KW - trace elements KW - SEM data KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50411029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Distribution+of+siderophile+and+other+trace+elements+in+melt+rock+at+the+Chicxulub+impact+structure&rft.au=Schuraytz%2C+Benjamin+C%3BLindstrom%2C+David+J%3BMartinez%2C+Rene+R%3BSharpton%2C+Virgil+L%3BMarin%2C+Luis+E%3BAnonymous&rft.aulast=Schuraytz&rft.aufirst=Benjamin&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1221&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Chicxulub Crater; distribution; impact craters; impact features; melts; Mexico; mineral assemblages; SEM data; siderophile elements; spatial distribution; trace elements; Yucatan Peninsula ER - TY - JOUR T1 - Anatomy of a cluster IDP; II, Noble gas abundances, trace element geochemistry, isotopic abundances, and trace organic chemistry of several fragments from L2008#5 AN - 50410936; 2009-059433 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Thomas, K L AU - Clemett, S J AU - Flynn, G J AU - Keller, L P AU - McKay, D S AU - Messenger, S AU - Nier, A O AU - Schlutter, D J AU - Sutton, S R AU - Walker, R M AU - Zare, R N AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1391 EP - 1392 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - zinc KW - stony meteorites KW - ion probe data KW - selenium KW - isotopes KW - copper KW - L2008-5 KW - halogens KW - mass spectra KW - He-4 KW - manganese KW - interplanetary dust KW - stable isotopes KW - iron KW - temperature KW - meteorites KW - mineral composition KW - noble gases KW - neon KW - X-ray fluorescence spectra KW - helium KW - spectra KW - trace elements KW - chondrites KW - chemical composition KW - geochemistry KW - chromium KW - gallium KW - isotope ratios KW - Ne-22/Ne-20 KW - bromine KW - measurement KW - organic compounds KW - D/H KW - metals KW - hydrogen KW - germanium KW - nickel KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - He-4/He-3 KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50410936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Anatomy+of+a+cluster+IDP%3B+II%2C+Noble+gas+abundances%2C+trace+element+geochemistry%2C+isotopic+abundances%2C+and+trace+organic+chemistry+of+several+fragments+from+L2008%235&rft.au=Thomas%2C+K+L%3BClemett%2C+S+J%3BFlynn%2C+G+J%3BKeller%2C+L+P%3BMcKay%2C+D+S%3BMessenger%2C+S%3BNier%2C+A+O%3BSchlutter%2C+D+J%3BSutton%2C+S+R%3BWalker%2C+R+M%3BZare%2C+R+N%3BAnonymous&rft.aulast=Thomas&rft.aufirst=K&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1391&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; bromine; chemical composition; chondrites; chromium; copper; D/H; gallium; geochemistry; germanium; halogens; He-4; He-4/He-3; helium; hydrocarbons; hydrogen; interplanetary dust; ion probe data; iron; isotope ratios; isotopes; L2008-5; manganese; mass spectra; measurement; metals; meteorites; mineral composition; Ne-22/Ne-20; neon; nickel; noble gases; organic compounds; polycyclic aromatic hydrocarbons; selenium; spectra; stable isotopes; stony meteorites; temperature; trace elements; X-ray fluorescence spectra; zinc ER - TY - JOUR T1 - Noachian and Hesperian modification of the original Chryse impact basin topography AN - 50410886; 2009-059410 AB - We propose a new center (35.5 W, 32.5 N) and ring assignment for the original Chryse impact basin based on photogeologic mapping and re-examination of the published geology. Noachian features in the Chryse Planitia area are the best indicators of the original ancient multiringed impact structure. While other workers have centered the Chryse impact on the topographic low associated with Hesperian volcanic and fluvial deposits, we suggest that the center of the original Noachian-age excavation cavity was located 800 km farther NE, and the basin topography was significantly modified over time. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Stockman, Stephanie AU - Frey, Herbert AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1345 EP - 1346 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - terrestrial planets KW - planets KW - topography KW - Noachian KW - impact features KW - Mars KW - impact craters KW - Hesperian KW - Chryse Planitia KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50410886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Noachian+and+Hesperian+modification+of+the+original+Chryse+impact+basin+topography&rft.au=Stockman%2C+Stephanie%3BFrey%2C+Herbert%3BAnonymous&rft.aulast=Stockman&rft.aufirst=Stephanie&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1345&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2009-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Chryse Planitia; Hesperian; impact craters; impact features; Mars; Noachian; observations; planets; terrestrial planets; topography ER - TY - JOUR T1 - Transmission measurements (4000-400 cm (super -1) , 2.5-25 mu m) of crystalline ferric oxides and ferric oxyhydroxides; implications for Mars AN - 50410778; 2009-059322 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Roush, Ted L AU - Bell, James F, III AU - Morris, Richard V AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1165 EP - 1166 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - oxyhydroxides KW - Viking Program KW - Mars KW - iron hydroxides KW - observations KW - infrared spectra KW - terrestrial planets KW - hydroxides KW - planets KW - oxides KW - spectra KW - mineral assemblages KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50410778?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Transmission+measurements+%284000-400+cm+%28super+-1%29+%2C+2.5-25+mu+m%29+of+crystalline+ferric+oxides+and+ferric+oxyhydroxides%3B+implications+for+Mars&rft.au=Roush%2C+Ted+L%3BBell%2C+James+F%2C+III%3BMorris%2C+Richard+V%3BAnonymous&rft.aulast=Roush&rft.aufirst=Ted&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1165&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 30 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - hydroxides; infrared spectra; iron hydroxides; Mars; mineral assemblages; observations; oxides; oxyhydroxides; planets; spectra; terrestrial planets; Viking Program ER - TY - JOUR T1 - Luna 24 regolith breccias; a possible source of the fine size material of the Luna 24 regolith AN - 50410570; 2009-059316 AB - The regolith breccias from the Luna 24 core were analyzed. The Luna 24 regolith is a mixture of fine and coarse grain materials. The comparable analysis of the grain size distributions, the modal and chemical compositions of the breccias, and the regolith from the same levels show that the friable slightly litificated breccia with a friable fine grain matrix may be a source of fine grain material of the Luna 24 present day regolith. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rode, O D AU - Lindstrom, M M AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1153 EP - 1154 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - breccia KW - Moon KW - grain size KW - Luna Program KW - Luna 24 KW - cores KW - observations KW - provenance KW - materials KW - fine-grained materials KW - chemical composition KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50410570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Luna+24+regolith+breccias%3B+a+possible+source+of+the+fine+size+material+of+the+Luna+24+regolith&rft.au=Rode%2C+O+D%3BLindstrom%2C+M+M%3BAnonymous&rft.aulast=Rode&rft.aufirst=O&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1153&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2009-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - breccia; chemical composition; cores; fine-grained materials; grain size; Luna 24; Luna Program; materials; Moon; observations; provenance; regolith ER - TY - JOUR T1 - Attempt to observe the sodium exosphere of Mercury during the 1993 solar transit AN - 50410401; 2009-059289 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Potter, A E AU - Talent, D AU - Kurokawa, H AU - Kawakami, S AU - Morgan, T H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1099 EP - 1100 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - alkali metals KW - sodium KW - observations KW - exosphere KW - emission spectra KW - terrestrial planets KW - planets KW - metals KW - Sun KW - Mercury Planet KW - spectra KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50410401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Attempt+to+observe+the+sodium+exosphere+of+Mercury+during+the+1993+solar+transit&rft.au=Potter%2C+A+E%3BTalent%2C+D%3BKurokawa%2C+H%3BKawakami%2C+S%3BMorgan%2C+T+H%3BAnonymous&rft.aulast=Potter&rft.aufirst=A&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1099&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; emission spectra; exosphere; instruments; Mercury Planet; metals; observations; planets; sodium; spectra; Sun; terrestrial planets ER - TY - JOUR T1 - FeO and MgO in plagioclase of lunar anorthosites; igneous or metamorphic? AN - 50410357; 2009-059280 AB - The combined evidence from terrestrial anorthosites and experimental laboratory studies strongly implies that lunar anorthosites have been subjected to high-grade metamorphic events that have erased the igneous signatures of FeO and MgO in their plagioclases. Arguments to the contrary have, to this point, been more hopeful than rigorous. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Phinney, W C AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1081 EP - 1082 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 3 KW - silicates KW - plagioclase KW - iron oxides KW - Moon KW - igneous rocks KW - melts KW - anorthosite KW - observations KW - partitioning KW - plutonic rocks KW - magnesium oxides KW - oxides KW - framework silicates KW - mineral assemblages KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50410357?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=FeO+and+MgO+in+plagioclase+of+lunar+anorthosites%3B+igneous+or+metamorphic%3F&rft.au=Phinney%2C+W+C%3BAnonymous&rft.aulast=Phinney&rft.aufirst=W&rft.date=1994-03-01&rft.volume=25%2C+Part+3&rft.issue=&rft.spage=1081&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2009-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - anorthosite; feldspar group; framework silicates; igneous rocks; iron oxides; magnesium oxides; melts; mineral assemblages; Moon; observations; oxides; partitioning; plagioclase; plutonic rocks; silicates ER - TY - JOUR T1 - New gravity field for Mars fuels research AN - 50338483; 1994-048897 JF - Eos, Transactions, American Geophysical Union AU - Smith, D E AU - Zuber, M T Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 97 PB - American Geophysical Union, Washington, DC VL - 75 IS - 9 SN - 0096-3941, 0096-3941 KW - terrestrial planets KW - models KW - planets KW - gravity anomalies KW - gravity field KW - Valles Marineris KW - topography KW - impact features KW - Mariner Program KW - Viking Program KW - Mars KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50338483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=New+gravity+field+for+Mars+fuels+research&rft.au=Smith%2C+D+E%3BZuber%2C+M+T&rft.aulast=Smith&rft.aufirst=D&rft.date=1994-03-01&rft.volume=75&rft.issue=9&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 3 N1 - PubXState - DC N1 - Document feature - geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - gravity anomalies; gravity field; impact features; Mariner Program; Mars; models; planets; terrestrial planets; topography; Valles Marineris; Viking Program ER - TY - JOUR T1 - Patterns of brittle deformation under extension on Venus AN - 50337432; 1996-010974 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Neumann, G A AU - Zuber, M T AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 993 EP - 994 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - terrestrial planets KW - planets KW - experimental studies KW - patterns KW - Venus KW - brittle deformation KW - tectonics KW - deformation KW - extension tectonics KW - crust KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50337432?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Patterns+of+brittle+deformation+under+extension+on+Venus&rft.au=Neumann%2C+G+A%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Neumann&rft.aufirst=G&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=993&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - brittle deformation; crust; deformation; experimental studies; extension tectonics; observations; patterns; planets; tectonics; terrestrial planets; Venus ER - TY - JOUR T1 - Shape, size, and distribution of magnetic particles in Bjurbole chondrules AN - 50335731; 1996-010968 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nava, David F AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 977 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - meteorites KW - ordinary chondrites KW - stony meteorites KW - chondrules KW - Bjurbole Meteorite KW - hardness KW - chondrites KW - L chondrites KW - distribution KW - observations KW - magnetic properties KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50335731?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Shape%2C+size%2C+and+distribution+of+magnetic+particles+in+Bjurbole+chondrules&rft.au=Nava%2C+David+F%3BAnonymous&rft.aulast=Nava&rft.aufirst=David&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=977&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Bjurbole Meteorite; chondrites; chondrules; distribution; hardness; L chondrites; magnetic properties; meteorites; observations; ordinary chondrites; stony meteorites ER - TY - JOUR T1 - Partial melting of the St. Severin (LL) and Lost City (H) ordinary chondrites; one step backwards and two steps forward AN - 50335628; 1996-010812 AB - This study looks at partial melting in H and LL chondrites at nearly one atmosphere of total pressure as part of a continuing study of the origins of basaltic achondrites. Previously, melting experiments on anhydrous CM and CV chondrites showed that, near its solidus, the CM chondrite produced melts having major element chemistries similar to the Sioux County eucrite; but, the pyroxenes in the residuum were too iron-rich to form diogenites. Our preliminary results from melting experiments on ordinary (H, LL) chondrites suggested that, although the melts did not look like any known eucrites, pyroxenes from these charges bracketed the compositional range of pyroxenes found in diogenites. We had used the Fe/Mg exchange coefficients calculated for olivine, pyroxene, and melt in these charges to evaluate the approach to equilibrium, which appeared to be excellent. Unfortunately, mass balance calculations later indicated to us that, unlike our CM and CV charges, the LL and H experimental charges had lost significant amounts of iron to their (Pt or PtRh) supports. Apparently, pyroxene stability in chondritic systems is quite sensitive to the amount of FeO, and it was this unrecognized change in the bulk iron content which had stabilized the high temperature, highly magnesian pyroxenes. Accordingly, this work reinvestigates the phase equilibria of ordinary chondrites, eliminating iron and nickel loss, and reports significant differences. It also looks closely at how the iron and sodium in the bulk charge affect the stability of pyroxene, and it comments on how these new results apply to the problems of diogenite and eucrite petrogenesis. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jurewicz, A J G AU - Jones, J H AU - Mittlefehldt, D W AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 651 EP - 652 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - ordinary chondrites KW - experimental studies KW - stony meteorites KW - partial melting KW - LL chondrites KW - diogenite KW - H chondrites KW - achondrites KW - Saint-Severin Meteorite KW - meteorites KW - Lost City Meteorite KW - eucrite KW - mineral assemblages KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50335628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Partial+melting+of+the+St.+Severin+%28LL%29+and+Lost+City+%28H%29+ordinary+chondrites%3B+one+step+backwards+and+two+steps+forward&rft.au=Jurewicz%2C+A+J+G%3BJones%2C+J+H%3BMittlefehldt%2C+D+W%3BAnonymous&rft.aulast=Jurewicz&rft.aufirst=A+J&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=651&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; chondrites; diogenite; eucrite; experimental studies; H chondrites; LL chondrites; Lost City Meteorite; meteorites; mineral assemblages; ordinary chondrites; partial melting; Saint-Severin Meteorite; stony meteorites ER - TY - JOUR T1 - Progress in the development of the GMM-2 gravity field model for Mars AN - 50335393; 1996-010877 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lemoine, F G AU - Smith, D E AU - Lerch, F J AU - Zuber, M T AU - Patel, G B AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 789 EP - 790 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - terrestrial planets KW - models KW - planets KW - gravity field KW - Goddard Mars Model-1 KW - Mars KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50335393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Progress+in+the+development+of+the+GMM-2+gravity+field+model+for+Mars&rft.au=Lemoine%2C+F+G%3BSmith%2C+D+E%3BLerch%2C+F+J%3BZuber%2C+M+T%3BPatel%2C+G+B%3BAnonymous&rft.aulast=Lemoine&rft.aufirst=F&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=789&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Goddard Mars Model-1; gravity field; Mars; models; planets; terrestrial planets ER - TY - JOUR T1 - Fluvial processes in Ma'adim Vallis and the potential of Gusev Crater as a high priority site AN - 50335184; 1996-076838 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cabrol, Nathalie AU - Landheim, Ragnhild AU - Greeley, Ronald AU - Farmer, Jack AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 213 EP - 214 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - erosion KW - paleohydrology KW - sedimentation KW - astrobiology KW - water erosion KW - Mars KW - fluvial sedimentation KW - terrestrial planets KW - planets KW - surface features KW - floods KW - Ma'adim Vallis KW - fluvial environment KW - Gusev Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50335184?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Fluvial+processes+in+Ma%27adim+Vallis+and+the+potential+of+Gusev+Crater+as+a+high+priority+site&rft.au=Cabrol%2C+Nathalie%3BLandheim%2C+Ragnhild%3BGreeley%2C+Ronald%3BFarmer%2C+Jack%3BAnonymous&rft.aulast=Cabrol&rft.aufirst=Nathalie&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - astrobiology; erosion; floods; fluvial environment; fluvial sedimentation; Gusev Crater; Ma'adim Vallis; Mars; paleohydrology; planets; sedimentation; surface features; terrestrial planets; water erosion ER - TY - JOUR T1 - Hematite formed from pyroxene on Mars by meteoritic impact AN - 50335167; 1996-010949 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morris, Richard V AU - Bell, J F, III AU - Lauer, H V, Jr AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 939 EP - 940 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - silicates KW - impact features KW - Quebec KW - meteor craters KW - Mars KW - melts KW - temperature KW - terrestrial planets KW - planets KW - pyroxene group KW - Canada KW - hematite KW - Manicouagan Crater KW - oxides KW - impact craters KW - spectra KW - Eastern Canada KW - basaltic composition KW - high temperature KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50335167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Hematite+formed+from+pyroxene+on+Mars+by+meteoritic+impact&rft.au=Morris%2C+Richard+V%3BBell%2C+J+F%2C+III%3BLauer%2C+H+V%2C+Jr%3BAnonymous&rft.aulast=Morris&rft.aufirst=Richard&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=939&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basaltic composition; Canada; chain silicates; Eastern Canada; hematite; high temperature; impact craters; impact features; Manicouagan Crater; Mars; melts; meteor craters; oxides; planets; pyroxene group; Quebec; silicates; spectra; temperature; terrestrial planets ER - TY - JOUR T1 - Atmospheric effects on the mapping of Martian thermal inertia and thermally derived albedo AN - 50334649; 1996-010746 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hayashi, J N AU - Jakosky, B M AU - Haberle, R M AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 517 EP - 518 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - terrestrial planets KW - albedo KW - planets KW - thermal inertia KW - thermal properties KW - statistical analysis KW - atmosphere KW - Mars KW - mapping KW - histograms KW - two-dimensional models KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50334649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Atmospheric+effects+on+the+mapping+of+Martian+thermal+inertia+and+thermally+derived+albedo&rft.au=Hayashi%2C+J+N%3BJakosky%2C+B+M%3BHaberle%2C+R+M%3BAnonymous&rft.aulast=Hayashi&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - albedo; atmosphere; histograms; mapping; Mars; planets; statistical analysis; terrestrial planets; thermal inertia; thermal properties; two-dimensional models ER - TY - JOUR T1 - Effects due to overlapping large impact basins on Mars AN - 50333994; 1996-076925 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Frey, Herbert AU - Reidy, Anne Marie AU - Roark, James H AU - Stockman, Stephanie AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 389 EP - 390 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - impact features KW - Mars KW - effects KW - Arcadia Planitia KW - terrestrial planets KW - Utopia Planitia KW - planets KW - Elysium KW - surface features KW - basins KW - Acidalia Planitia KW - Chryse Planitia KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333994?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Effects+due+to+overlapping+large+impact+basins+on+Mars&rft.au=Frey%2C+Herbert%3BReidy%2C+Anne+Marie%3BRoark%2C+James+H%3BStockman%2C+Stephanie%3BAnonymous&rft.aulast=Frey&rft.aufirst=Herbert&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=389&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Acidalia Planitia; Arcadia Planitia; basins; Chryse Planitia; effects; Elysium; impact features; Mars; planets; surface features; terrestrial planets; Utopia Planitia ER - TY - JOUR T1 - Subpixel resolution from multiple images AN - 50333935; 1996-076851 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cheeseman, Peter AU - Kanefsky, Bob AU - Stutz, John AU - Kraft, Richard AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 241 EP - 242 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - terrestrial planets KW - planets KW - high-resolution methods KW - Viking Orbiter KW - Voyager Program KW - planetology KW - Viking Program KW - Mars KW - pixels KW - image analysis KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Subpixel+resolution+from+multiple+images&rft.au=Cheeseman%2C+Peter%3BKanefsky%2C+Bob%3BStutz%2C+John%3BKraft%2C+Richard%3BAnonymous&rft.aulast=Cheeseman&rft.aufirst=Peter&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - high-resolution methods; image analysis; Mars; pixels; planetology; planets; remote sensing; terrestrial planets; Viking Orbiter; Viking Program; Voyager Program ER - TY - JOUR T1 - Mars atmospheric escape and isotopic fractionation; synthesis of data and models AN - 50333849; 1996-010794 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jakosky, Bruce M AU - Luhmann, Janet G AU - Jones, John H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 615 EP - 616 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - N-15/N-14 KW - isotopes KW - isotope ratios KW - atmosphere KW - Mars KW - stable isotopes KW - evolution KW - nitrogen KW - argon KW - terrestrial planets KW - models KW - planets KW - radioactive isotopes KW - noble gases KW - Ar-38/Ar-36 KW - fractionation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mars+atmospheric+escape+and+isotopic+fractionation%3B+synthesis+of+data+and+models&rft.au=Jakosky%2C+Bruce+M%3BLuhmann%2C+Janet+G%3BJones%2C+John+H%3BAnonymous&rft.aulast=Jakosky&rft.aufirst=Bruce&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=615&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Ar-38/Ar-36; argon; atmosphere; evolution; fractionation; isotope ratios; isotopes; Mars; models; N-15/N-14; nitrogen; noble gases; planets; radioactive isotopes; stable isotopes; terrestrial planets ER - TY - JOUR T1 - Mercury; mid-infrared (7.3-13.5 mu m) spectroscopic observations showing features characteristic of plagioclase AN - 50333847; 1996-010853 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kozlowski, R W H AU - Sprague, A L AU - Witteborn, F C AU - Cruikshank, D P AU - Wooden, D AU - Snyder, K D AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 739 EP - 740 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - terrestrial planets KW - silicates KW - planets KW - plagioclase KW - metamorphic rocks KW - Mercury Planet KW - quartzites KW - framework silicates KW - spectra KW - feldspar group KW - infrared spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mercury%3B+mid-infrared+%287.3-13.5+mu+m%29+spectroscopic+observations+showing+features+characteristic+of+plagioclase&rft.au=Kozlowski%2C+R+W+H%3BSprague%2C+A+L%3BWitteborn%2C+F+C%3BCruikshank%2C+D+P%3BWooden%2C+D%3BSnyder%2C+K+D%3BAnonymous&rft.aulast=Kozlowski&rft.aufirst=R+W&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=739&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - feldspar group; framework silicates; infrared spectra; Mercury Planet; metamorphic rocks; plagioclase; planets; quartzites; silicates; spectra; terrestrial planets ER - TY - JOUR T1 - Uniqueness of a solution of a steady-state photochemical problem; applications to Mars AN - 50333636; 1996-010856 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Krasnopolsky, V A AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 745 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - terrestrial planets KW - planets KW - steady-state processes KW - photochemistry KW - Mars KW - interpretation KW - chemical composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Uniqueness+of+a+solution+of+a+steady-state+photochemical+problem%3B+applications+to+Mars&rft.au=Krasnopolsky%2C+V+A%3BAnonymous&rft.aulast=Krasnopolsky&rft.aufirst=V&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical composition; interpretation; Mars; photochemistry; planets; steady-state processes; terrestrial planets ER - TY - JOUR T1 - The fretted terrain of the Nilosyrtis Mensae region of Mars; clues to the timing of dichotomy formation and the emplacement of the Northern Plains AN - 50333611; 1996-076894 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - DeTroye, Jeff E AU - Williams, Steven H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 327 EP - 328 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - Northern Plains KW - erosion KW - Mars KW - mapping KW - Hesperian KW - fretted terrain KW - emplacement KW - terrestrial planets KW - morphology KW - planets KW - surface features KW - Nilosyrtis Mensae KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+fretted+terrain+of+the+Nilosyrtis+Mensae+region+of+Mars%3B+clues+to+the+timing+of+dichotomy+formation+and+the+emplacement+of+the+Northern+Plains&rft.au=DeTroye%2C+Jeff+E%3BWilliams%2C+Steven+H%3BAnonymous&rft.aulast=DeTroye&rft.aufirst=Jeff&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - crust; emplacement; erosion; fretted terrain; Hesperian; mapping; Mars; morphology; Nilosyrtis Mensae; Northern Plains; planets; surface features; terrestrial planets ER - TY - JOUR T1 - Dust on Mars; new values for wind threshold AN - 50333505; 1996-076964 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Greeley, R AU - Lacchia, M AU - White, B AU - Leach, R AU - Trilling, D AU - Pollack, J AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 467 EP - 468 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - dust storms KW - clastic sediments KW - grain size KW - Mars KW - physical models KW - terrestrial planets KW - planets KW - saltation KW - transport KW - dust KW - sediments KW - velocity KW - winds KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Dust+on+Mars%3B+new+values+for+wind+threshold&rft.au=Greeley%2C+R%3BLacchia%2C+M%3BWhite%2C+B%3BLeach%2C+R%3BTrilling%2C+D%3BPollack%2C+J%3BAnonymous&rft.aulast=Greeley&rft.aufirst=R&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=467&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - clastic sediments; dust; dust storms; grain size; Mars; physical models; planets; saltation; sediments; terrestrial planets; transport; velocity; winds ER - TY - JOUR T1 - Venus climate stability and volcanic resurfacing rates AN - 50332516; 1996-076827 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bullock, M A AU - Grinspoon, D H AU - Pollack, J B AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 191 EP - 192 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - cratering KW - Venus KW - resurfacing KW - atmosphere KW - rates KW - evolution KW - terrestrial planets KW - models KW - planets KW - volcanism KW - surface features KW - climate KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50332516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Venus+climate+stability+and+volcanic+resurfacing+rates&rft.au=Bullock%2C+M+A%3BGrinspoon%2C+D+H%3BPollack%2C+J+B%3BAnonymous&rft.aulast=Bullock&rft.aufirst=M&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; climate; cratering; evolution; models; planets; rates; resurfacing; surface features; terrestrial planets; Venus; volcanism ER - TY - JOUR T1 - A possible atmospheric water source for the fluvial valleys on Alba Patera AN - 50332477; 1996-076976 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Gulick, Virginia C AU - McKay, Christopher P AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 491 EP - 492 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - water KW - surface water KW - channels KW - atmosphere KW - Mars KW - atmospheric precipitation KW - Alba Patera KW - terrestrial planets KW - models KW - sublimation KW - planets KW - snow KW - surface features KW - fluvial features KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50332477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+possible+atmospheric+water+source+for+the+fluvial+valleys+on+Alba+Patera&rft.au=Gulick%2C+Virginia+C%3BMcKay%2C+Christopher+P%3BAnonymous&rft.aulast=Gulick&rft.aufirst=Virginia&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=491&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Alba Patera; atmosphere; atmospheric precipitation; channels; fluvial features; Mars; models; planets; snow; sublimation; surface features; surface water; terrestrial planets; water ER - TY - JOUR T1 - Exopaleontology and the search for a fossil record on Mars AN - 50331675; 1996-076914 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Farmer, J D AU - Des Marais, D J AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 367 EP - 368 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - terrestrial planets KW - planets KW - springs KW - astrobiology KW - Mars KW - hot springs KW - fossil record KW - climate KW - thermal waters KW - ground water KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50331675?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Exopaleontology+and+the+search+for+a+fossil+record+on+Mars&rft.au=Farmer%2C+J+D%3BDes+Marais%2C+D+J%3BAnonymous&rft.aulast=Farmer&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 22 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - astrobiology; climate; fossil record; ground water; hot springs; Mars; planets; springs; terrestrial planets; thermal waters ER - TY - JOUR T1 - High resolution visible to short-wave near-infrared CCD spectra of Mars during 1990 AN - 50330135; 1996-076773 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bell, James F, III AU - Bornhoeft, Karl AU - Lucey, Paul G AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 83 EP - 84 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - terrestrial planets KW - surface properties KW - planets KW - high-resolution methods KW - imagery KW - Mars KW - spectra KW - remote sensing KW - infrared spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50330135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=High+resolution+visible+to+short-wave+near-infrared+CCD+spectra+of+Mars+during+1990&rft.au=Bell%2C+James+F%2C+III%3BBornhoeft%2C+Karl%3BLucey%2C+Paul+G%3BAnonymous&rft.aulast=Bell&rft.aufirst=James&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 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 - high-resolution methods; imagery; infrared spectra; Mars; planets; remote sensing; spectra; surface properties; terrestrial planets ER - TY - JOUR T1 - Wavelength calibration techniques and subtle surface and atmospheric absorption features in the Mariner 6, 7 IRS reflectance data AN - 50330099; 1996-076775 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bell, J F, III AU - Roush, T L AU - Martin, T Z AU - Pollack, J B AU - Freedman, R AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 87 EP - 88 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - techniques KW - Mars KW - calibration KW - infrared spectra KW - wavelength KW - terrestrial planets KW - planets KW - Mariner Program KW - spectra KW - Mariner 7 KW - reflectance KW - Mariner 6 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50330099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Wavelength+calibration+techniques+and+subtle+surface+and+atmospheric+absorption+features+in+the+Mariner+6%2C+7+IRS+reflectance+data&rft.au=Bell%2C+J+F%2C+III%3BRoush%2C+T+L%3BMartin%2C+T+Z%3BPollack%2C+J+B%3BFreedman%2C+R%3BAnonymous&rft.aulast=Bell&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - calibration; infrared spectra; Mariner 6; Mariner 7; Mariner Program; Mars; planets; reflectance; spectra; techniques; terrestrial planets; wavelength ER - TY - JOUR T1 - The surface and interior of Phobos AN - 50328692; 1996-076753 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Asphaug, E AU - Benz, W AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 43 EP - 44 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - terrestrial planets KW - Phobos Satellite KW - planets KW - impact features KW - three-dimensional models KW - planetary interiors KW - surface features KW - Mars KW - impact craters KW - satellites KW - Stickney Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50328692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+surface+and+interior+of+Phobos&rft.au=Asphaug%2C+E%3BBenz%2C+W%3BAnonymous&rft.aulast=Asphaug&rft.aufirst=E&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - impact craters; impact features; Mars; Phobos Satellite; planetary interiors; planets; satellites; Stickney Crater; surface features; terrestrial planets; three-dimensional models ER - TY - JOUR T1 - Absolute calibration and atmospheric vs. mineralogic origin of absorption features in 2.0 to 2.5 mu m Mars spectra obtained during 1993 AN - 50327711; 1996-076774 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bell, James F, III AU - Pollack, James B AU - Geballe, Thomas R AU - Cruikshank, Dale P AU - Freedman, Richard AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 85 EP - 86 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 1 KW - terrestrial planets KW - surface properties KW - planets KW - mineral composition KW - atmosphere KW - Mars KW - spectra KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50327711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Absolute+calibration+and+atmospheric+vs.+mineralogic+origin+of+absorption+features+in+2.0+to+2.5+mu+m+Mars+spectra+obtained+during+1993&rft.au=Bell%2C+James+F%2C+III%3BPollack%2C+James+B%3BGeballe%2C+Thomas+R%3BCruikshank%2C+Dale+P%3BFreedman%2C+Richard%3BAnonymous&rft.aulast=Bell&rft.aufirst=James&rft.date=1994-03-01&rft.volume=25%2C+Part+1&rft.issue=&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 23 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; Mars; mineral composition; planets; reflectance; spectra; surface properties; terrestrial planets ER - TY - JOUR T1 - Mineralogy and (super 39) Ar- (super 40) Ar age of an old pristine basalt; thermal history of the HED parent body AN - 50266028; 1994-026189 AB - Previous investigations of mineral chemistry and Rb-Sr and Sm-Nd ages indicated that clast,84 from eucrite Yamato 75011 had preserved the pristine nature of its initial crystallization during an early stage of the HED parent body. Microscale mineralogy and (super 39) Ar- (super 40) Ar ages of this clast, however, revealed local disturbance of microtextures and partially reset ages. This evidence suggests that, in addition to initial crystallization and rapid cooling, the Y75011,84 clast experienced shock deformation, reheating of short duration at higher temperature, and brecciation. These characteristics suggest two or more impact events. Fe-rich olivine filling fractures in pyroxene may have been introduced during the accompanying shock fracturing. The inferred (super 39) Ar- (super 40) Ar degassing ages for Y75011 matrix and clast,84 are 3.94+ or -0.04 Ga and 3.98+ or -0.03 Ga, respectively. The suggested degassing age for a clast from Y790020, believed to be paired with Y75011, is approximately 4.03 Ga, but could be younger. We consider it likely that all three samples experienced a common degassing event 3.95+ or -0.05 Ga ago, but we cannot rule out two or more events spaced over a approximately 0.1 Ga interval. Higher temperature extractions of the two clast samples show significantly older apparent ages up to approximately 4.5 Ga and suggest that the time/temperature regime of this event was not sufficient to degas Ar totally. Most likely, the K-Ar ages were reset by thermal metamorphism associated with one or more impact events associated with shock fracturing, formation of Fe-rich olivine veins, and/or meteorite brecciation. The pyroxene annealing that commonly occurs in many eucrites is likely to be a much earlier process than the impact-produced textural changes and reset K-Ar ages observed in these meteorites. The existence of mineralogical and chronological evidence for metamorphism in an otherwise pristine eucrite suggests that the HED parent body experienced an extensive degree of early cratering. JF - Earth and Planetary Science Letters AU - Takeda, Hiroshi AU - Mori, Hiroshi AU - Bogard, Donald D Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 183 EP - 194 PB - Elsevier, Amsterdam VL - 122 IS - 1-2 SN - 0012-821X, 0012-821X KW - volcanic rocks KW - stony meteorites KW - igneous rocks KW - thermal history KW - meteorites KW - fractures KW - mineral composition KW - dates KW - basalts KW - absolute age KW - Archean KW - chemical composition KW - zoning KW - degassing KW - Ar/Ar KW - Yamato Meteorites KW - Precambrian KW - textures KW - parent bodies KW - thermal metamorphism KW - impacts KW - deformation KW - metamorphism KW - achondrites KW - K/Ar KW - eucrite KW - crystallization KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50266028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogy+and+%28super+39%29+Ar-+%28super+40%29+Ar+age+of+an+old+pristine+basalt%3B+thermal+history+of+the+HED+parent+body&rft.au=Takeda%2C+Hiroshi%3BMori%2C+Hiroshi%3BBogard%2C+Donald+D&rft.aulast=Takeda&rft.aufirst=Hiroshi&rft.date=1994-03-01&rft.volume=122&rft.issue=1-2&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2F0012-821X%2894%2990059-0 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 - 1994-01-01 N1 - Number of references - 28 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; Ar/Ar; Archean; basalts; chemical composition; crystallization; dates; deformation; degassing; eucrite; fractures; igneous rocks; impacts; K/Ar; metamorphism; meteorites; mineral composition; parent bodies; Precambrian; stony meteorites; textures; thermal history; thermal metamorphism; volcanic rocks; Yamato Meteorites; zoning DO - http://dx.doi.org/10.1016/0012-821X(94)90059-0 ER - TY - JOUR T1 - Textural variations and impact history of the Millbillillie eucrite AN - 50263792; 1994-026040 AB - Textures and mineral compositions of the Millbillillie eucrite were studied using EPMA and SEM. Although Millbillillie was originally described as having a fine-grained texture, the new samples studied show more diversity. Pyroxene compositions are homogeneous despite the textural variation, and pyroxenes in coarse and fine-grained clasts are partly inverted to orthopyroxene. Zoning of plagioclase from crystal growth is preserved. Millbillillie includes areas of granulitic breccias and impact melts. Large scale textures show a subparallel layering suggesting incomplete mixing and deposition of impact melt and lithic fragments. An (super 39) Ar- (super 40) Ar age determination for a coarse-grained clast indicates a strong degassing event at 3550 + or - 20 m.y. This leads to the conclusion that Millbillillie is among the most equilibrated eucrites produced by thermal annealing after impact brecciation. The last significant thermal event is characterized by network-like glassy veins that run through clasts and matrices. The (super 39) Ar- (super 40) Ar age could in principle date either the earlier brecciation and annealing event or the event which produced the veins. JF - Meteoritics AU - Yamaguchi, Akira AU - Takeda, Hiroshi AU - Bogard, Donald D AU - Garrison, Daniel Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 237 EP - 245 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 2 SN - 0026-1114, 0026-1114 KW - Ar/Ar KW - stony meteorites KW - textures KW - Paleozoic KW - electron microscopy data KW - thermal history KW - achondrites KW - Millbillillie Meteorite KW - history KW - meteorites KW - dates KW - absolute age KW - eucrite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50263792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Textural+variations+and+impact+history+of+the+Millbillillie+eucrite&rft.au=Yamaguchi%2C+Akira%3BTakeda%2C+Hiroshi%3BBogard%2C+Donald+D%3BGarrison%2C+Daniel&rft.aulast=Yamaguchi&rft.aufirst=Akira&rft.date=1994-03-01&rft.volume=29&rft.issue=2&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 28 N1 - PubXState - AZ N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; Ar/Ar; dates; electron microscopy data; eucrite; history; meteorites; Millbillillie Meteorite; Paleozoic; stony meteorites; textures; thermal history ER - TY - JOUR T1 - A mineralogical study of the proposed paired eucrites Y-793164 with reference to cratering events on their parent body AN - 50184824; 1995-009903 AB - A comparison of the mineralogy of Yamato (Y-)792769 and Y-793164 has been performed to confirm the proposed pairing of these two specimens and to correlate their common shock-sintered textures with the resetting of their isotopic ages. The matrices of the two meteorites share this common texture as described for Y-792769, but their clast types are different. Y-792769 contains pyroxene fragments with Mg-rich compositions, which are not present in the matrix. A large basaltic clast present in Y-793164 includes acicular plagioclase crystals replacing the pyroxene grains. Some pyroxenes are more Fe-rich than those of common monomict eucrites such as Juvinas. The common pyroxene components and the shock-sintered textures support the proposed pairing of Y-792769 and Y-793164. Rb and Sr abundances and isotopic data do not strongly support the proposed pairing of the meteorites, but could be consistent with observed compositional heterogeneities within and between them. Sm and Nd abundances and isotopic data are similar for matrix samples of the meteorites and are consistent with their pairing. (Auth. mod.) JF - Proceedings of the NIPR Symposium on Antarctic Meteorites AU - Takeda, Hiroshi AU - Yamaguchi, Akira AU - Nyquist, L E AU - Bogard, D D A2 - Yanai, Keizo Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 73 EP - 93 PB - National Institute of Polar Research, Tokyo VL - 7 SN - 0914-5621, 0914-5621 KW - silicates KW - stony meteorites KW - isotopes KW - stable isotopes KW - Ar-40/Ar-39 KW - meteorites KW - radioactive isotopes KW - pyroxene group KW - mineral composition KW - dates KW - noble gases KW - absolute age KW - chemical composition KW - basaltic composition KW - chain silicates KW - alkaline earth metals KW - Yamato Meteorites KW - isotope ratios KW - rubidium KW - alkali metals KW - achondrites KW - argon KW - Y-793164 KW - Antarctica KW - metals KW - eucrite KW - strontium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50184824?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+NIPR+Symposium+on+Antarctic+Meteorites&rft.atitle=A+mineralogical+study+of+the+proposed+paired+eucrites+Y-793164+with+reference+to+cratering+events+on+their+parent+body&rft.au=Takeda%2C+Hiroshi%3BYamaguchi%2C+Akira%3BNyquist%2C+L+E%3BBogard%2C+D+D&rft.aulast=Takeda&rft.aufirst=Hiroshi&rft.date=1994-03-01&rft.volume=7&rft.issue=&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+NIPR+Symposium+on+Antarctic+Meteorites&rft.issn=09145621&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 18th symposium on Antarctic meteorites N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 19 N1 - Document feature - illus. incl. 3 tables, 7 plates N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; alkali metals; alkaline earth metals; Antarctica; Ar-40/Ar-39; argon; basaltic composition; chain silicates; chemical composition; dates; eucrite; isotope ratios; isotopes; metals; meteorites; mineral composition; noble gases; pyroxene group; radioactive isotopes; rubidium; silicates; stable isotopes; stony meteorites; strontium; Y-793164; Yamato Meteorites ER - TY - JOUR T1 - Possible thermal metamorphism on the C, G, B, and F asteroids detected from their reflectance spectra in comparison with carbonaceous chondrites AN - 50183314; 1995-009916 AB - Reflectance spectra (0.3-2.6 microns) of the C, G, B, and F asteroids and carbonaceous chondrites including antarctic specimens are compared in detail. Mixing calculations of 13 carbonaceous chondrite powders including three unusual CI/CM meteorites are done to characterize reflectance spectra of the 23 C, G, B, and F asteroids. Similar calculations are done with Murchison (CM2) samples heated at 400-1000 C. Each of two sets of calculations show that the C, G, G, and F asteroids may contain significant amounts of thermally metamorphosed materials. Comparison of ultraviolet absorption strengths between 160 C, G, G, and F asteroids and 21 carbonaceous chondrite powders suggests that surface minerals of most of these asteroids are thermally metamorphosed at temperatures around 600-1000 C. (Auth.) JF - Proceedings of the NIPR Symposium on Antarctic Meteorites AU - Hiroi, Takahiro AU - Pieters, Carle M AU - Zolensky, Michael E AU - Lipschutz, Michael E A2 - Yanai, Keizo Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 230 EP - 243 PB - National Institute of Polar Research, Tokyo VL - 7 SN - 0914-5621, 0914-5621 KW - silicates KW - stony meteorites KW - asteroids KW - olivine group KW - Murchison Meteorite KW - meteorites KW - pyroxene group KW - mineral composition KW - olivine KW - orthosilicates KW - chondrites KW - chain silicates KW - C asteroids KW - Yamato Meteorites KW - B asteroids KW - thermal metamorphism KW - carbonaceous chondrites KW - metamorphism KW - G asteroids KW - nesosilicates KW - F asteroids KW - orthopyroxene KW - CM chondrites KW - reflectance KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50183314?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+NIPR+Symposium+on+Antarctic+Meteorites&rft.atitle=Possible+thermal+metamorphism+on+the+C%2C+G%2C+B%2C+and+F+asteroids+detected+from+their+reflectance+spectra+in+comparison+with+carbonaceous+chondrites&rft.au=Hiroi%2C+Takahiro%3BPieters%2C+Carle+M%3BZolensky%2C+Michael+E%3BLipschutz%2C+Michael+E&rft.aulast=Hiroi&rft.aufirst=Takahiro&rft.date=1994-03-01&rft.volume=7&rft.issue=&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+NIPR+Symposium+on+Antarctic+Meteorites&rft.issn=09145621&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 18th symposium on Antarctic meteorites N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 2 tables, 1 plate N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; B asteroids; C asteroids; carbonaceous chondrites; chain silicates; chondrites; CM chondrites; F asteroids; G asteroids; metamorphism; meteorites; mineral composition; Murchison Meteorite; nesosilicates; olivine; olivine group; orthopyroxene; orthosilicates; pyroxene group; reflectance; silicates; stony meteorites; thermal metamorphism; Yamato Meteorites ER - TY - JOUR T1 - SAGE II observations of a previously unreported stratospheric volcanic aerosol cloud in the northern polar summer of 1990 AN - 50178248; 1994-054440 AB - Analysis of aerosol extinction profiles obtained by the spaceborne SAGE II sensor reveals that there was an anomalous increase of aerosol extinction below 18.5 km at latitudes poleward of 50 degrees N from July 28 to September 9, 1990. This widespread increase of aerosol extinction in the lower stratosphere was apparently due to a remote high-latitude volcanic eruption that has not been reported to date. The increase in stratospheric optical depth in the northern polar region was about 50% in August and had diminished by October 1990. This eruption caused an increase in stratospheric aerosol mass of about 0.33 X 10 (super 5) tons, assuming the aerosol was composed of sulfuric acid and water. Copyright 1994 by the American Geophysical Union. JF - Geophysical Research Letters AU - Yue, Glenn K AU - Veiga, Robert E AU - Wang, Pi-Huan Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 429 EP - 432 PB - American Geophysical Union, Washington, DC VL - 21 IS - 6 SN - 0094-8276, 0094-8276 KW - water KW - sulfuric acid KW - polar regions KW - sulfate ion KW - Arctic region KW - space photography KW - Stratospheric Aerosol and Gas Experiment II KW - simulation KW - SAGE II KW - ozone KW - optical properties KW - stratosphere KW - volcanism KW - North Pole KW - eruptions KW - aerosols KW - inorganic acids KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50178248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=SAGE+II+observations+of+a+previously+unreported+stratospheric+volcanic+aerosol+cloud+in+the+northern+polar+summer+of+1990&rft.au=Yue%2C+Glenn+K%3BVeiga%2C+Robert+E%3BWang%2C+Pi-Huan&rft.aulast=Yue&rft.aufirst=Glenn&rft.date=1994-03-01&rft.volume=21&rft.issue=6&rft.spage=429&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL03376 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 13 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Arctic region; eruptions; geochemistry; inorganic acids; North Pole; optical properties; ozone; polar regions; SAGE II; simulation; space photography; stratosphere; Stratospheric Aerosol and Gas Experiment II; sulfate ion; sulfuric acid; volcanism; water DO - http://dx.doi.org/10.1029/93GL03376 ER - TY - JOUR T1 - Radiatively forced dispersion of the Mt. Pinatubo volcanic cloud and induced temperature perturbations in the stratosphere during the first few months following the eruption AN - 50177745; 1994-054411 AB - A combined 3-dimensional circulation model and aerosol microphysical/transport model is used to simulate the dispersion of the Mt. Pinatubo volcanic cloud in the stratosphere for the first few months following the eruption. Radiative heating of the cloud due to upwelling infrared radiation from the troposphere is shown to be an important factor affecting the transport. Without cloud heating, cloud material stays mostly north of the equator, whereas with cloud heating, the cloud is transported southward across the equator within the first two weeks following the eruption. Generally the simulations agree with TOMS, AVHRR, and SAGE satellite observations showing the latitude distribution of cloud material to be between about 20 degrees S and 30 degrees N within the first few months. Temperature perturbations in the stratosphere induced by the aerosol heating are generally 1-4 K, in the range of those observed. JF - Geophysical Research Letters AU - Young, Richard E AU - Houben, Howard AU - Toon, Owen B Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 369 EP - 372 PB - American Geophysical Union, Washington, DC VL - 21 IS - 5 SN - 0094-8276, 0094-8276 KW - sulfur dioxide KW - sulfuric acid KW - Luzon KW - Far East KW - numerical models KW - three-dimensional models KW - atmosphere KW - troposphere KW - simulation KW - temperature KW - gases KW - stratosphere KW - Mount Pinatubo KW - transport KW - Philippine Islands KW - circulation KW - heat transfer KW - aerosols KW - Asia KW - inorganic acids KW - ash clouds KW - climate KW - remote sensing KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50177745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Radiatively+forced+dispersion+of+the+Mt.+Pinatubo+volcanic+cloud+and+induced+temperature+perturbations+in+the+stratosphere+during+the+first+few+months+following+the+eruption&rft.au=Young%2C+Richard+E%3BHouben%2C+Howard%3BToon%2C+Owen+B&rft.aulast=Young&rft.aufirst=Richard&rft.date=1994-03-01&rft.volume=21&rft.issue=5&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL03302 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; ash clouds; Asia; atmosphere; circulation; climate; Far East; gases; heat transfer; inorganic acids; Luzon; Mount Pinatubo; numerical models; Philippine Islands; remote sensing; simulation; stratosphere; sulfur dioxide; sulfuric acid; temperature; three-dimensional models; transport; troposphere DO - http://dx.doi.org/10.1029/93GL03302 ER - TY - JOUR T1 - Preliminary solutions for the lunar gravity field from analysis of Lunar Orbiter tracking data AN - 50086375; 1996-010878 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lemoine, F G AU - Smith, D E AU - Zuber, M T AU - Rowlands, David D AU - Fricke, S K AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 791 EP - 792 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - gravity field KW - Moon KW - equations KW - satellite methods KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50086375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preliminary+solutions+for+the+lunar+gravity+field+from+analysis+of+Lunar+Orbiter+tracking+data&rft.au=Lemoine%2C+F+G%3BSmith%2C+D+E%3BZuber%2C+M+T%3BRowlands%2C+David+D%3BFricke%2C+S+K%3BAnonymous&rft.aulast=Lemoine&rft.aufirst=F&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=791&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 16 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - equations; gravity field; Moon; remote sensing; satellite methods ER - TY - JOUR T1 - The nature of agglutinitic glass in the fine-size fraction of lunar soil 10084 AN - 50086211; 1996-010829 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Keller, Lindsay P AU - McKay, David S AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 685 EP - 686 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - volcanic rocks KW - glasses KW - Moon KW - lunar sample 10084 KW - igneous rocks KW - inclusions KW - Apollo 11 KW - Apollo Program KW - heterogeneity KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50086211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+nature+of+agglutinitic+glass+in+the+fine-size+fraction+of+lunar+soil+10084&rft.au=Keller%2C+Lindsay+P%3BMcKay%2C+David+S%3BAnonymous&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=685&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo 11; Apollo Program; glasses; heterogeneity; igneous rocks; inclusions; lunar sample 10084; lunar soils; Moon; volcanic rocks ER - TY - JOUR T1 - Shocked materials from the Dutch Peak diamictite, Utah AN - 50086018; 1996-010770 AB - Evidence of shock metamorphism in the Dutch Peak diamictite in the Sheeprock Mountains, Utah, is reported. The Dutch Peak diamictite is of Proterozoic age and is a minor part of the Dutch Peak formation. A shocked sample, specimen A250, was collected during a brief visit of the Harker Canyon area of the Sheeprock Mountains. This sample consists of equant, anhedral grains of quartz, K-feldspar, and plagioclase. The crystallographic orientation of 244 lamellae systems in 106 grains was measured. It is presently difficult to evaluate the significance of this single specimen. Without additional and substantial field work, and petrographic characterization of this formation, a number of scenarios for the presence of a shocked clast and the emplacement of the entire formation remain viable. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hoerz, F AU - Bunch, T E AU - Oberbeck, V R AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 565 EP - 566 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - United States KW - silicates KW - orientation KW - plagioclase KW - upper Precambrian KW - Precambrian KW - Harker Canyon KW - Proterozoic KW - tillite KW - Sheeprock Mountains KW - metamorphism KW - evolution KW - sedimentary rocks KW - diamictite KW - Dutch Peak Formation KW - framework silicates KW - Utah KW - mineral assemblages KW - interpretation KW - feldspar group KW - clastic rocks KW - shock metamorphism KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50086018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Shocked+materials+from+the+Dutch+Peak+diamictite%2C+Utah&rft.au=Hoerz%2C+F%3BBunch%2C+T+E%3BOberbeck%2C+V+R%3BAnonymous&rft.aulast=Hoerz&rft.aufirst=F&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=565&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - clastic rocks; diamictite; Dutch Peak Formation; evolution; feldspar group; framework silicates; Harker Canyon; interpretation; metamorphism; mineral assemblages; orientation; plagioclase; Precambrian; Proterozoic; sedimentary rocks; Sheeprock Mountains; shock metamorphism; silicates; tillite; United States; upper Precambrian; Utah ER - TY - JOUR T1 - Mossbauer and spectral (visible and near-IR) data for Fe (super 3+) -substituted rutile AN - 50085405; 1996-010868 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lauer, H V, Jr AU - Morris, R V AU - Vempati, R K AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 771 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - ilmenite KW - Mars KW - iron KW - terrestrial planets KW - planets KW - ferric iron KW - titanohematite KW - metals KW - rutile KW - oxides KW - spectra KW - mineral assemblages KW - Mossbauer spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50085405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mossbauer+and+spectral+%28visible+and+near-IR%29+data+for+Fe+%28super+3%2B%29+-substituted+rutile&rft.au=Lauer%2C+H+V%2C+Jr%3BMorris%2C+R+V%3BVempati%2C+R+K%3BAnonymous&rft.aulast=Lauer&rft.aufirst=H&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=771&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ferric iron; ilmenite; iron; Mars; metals; mineral assemblages; Mossbauer spectra; oxides; planets; rutile; spectra; terrestrial planets; titanohematite ER - TY - JOUR T1 - The compositional similarity between Sioux County and experimentally produced partial melts of the Murchison chondrite favors a partial melting origin for primitive eucrites AN - 50085361; 1996-010806 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, J H AU - Hanson, B Z AU - McKay, G A AU - Jurewicz, A J G AU - Delano, J W AU - Mittlefehldt, D W AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 639 EP - 640 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - experimental studies KW - stony meteorites KW - partial melting KW - Sioux County Meteorite KW - diogenite KW - carbonaceous chondrites KW - achondrites KW - variations KW - Murchison Meteorite KW - electron probe data KW - genesis KW - meteorites KW - eucrite KW - mineral assemblages KW - CM chondrites 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/50085361?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+compositional+similarity+between+Sioux+County+and+experimentally+produced+partial+melts+of+the+Murchison+chondrite+favors+a+partial+melting+origin+for+primitive+eucrites&rft.au=Jones%2C+J+H%3BHanson%2C+B+Z%3BMcKay%2C+G+A%3BJurewicz%2C+A+J+G%3BDelano%2C+J+W%3BMittlefehldt%2C+D+W%3BAnonymous&rft.aulast=Jones&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=639&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; carbonaceous chondrites; chemical composition; chondrites; CM chondrites; diogenite; electron probe data; eucrite; experimental studies; genesis; meteorites; mineral assemblages; Murchison Meteorite; partial melting; Sioux County Meteorite; stony meteorites; variations ER - TY - JOUR T1 - Pigeonholing planetary meteorites; the lessons of misclassification of EET87521 and ALH84001 AN - 50085081; 1996-010881 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lindstrom, M M AU - Treiman, A H AU - Mittlefehldt, D W AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 797 EP - 798 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - lunar meteorites KW - stony meteorites KW - Martian meteorites KW - EET 87521 KW - Elephant Moraine Meteorites KW - achondrites KW - meteorites KW - Allan Hills Meteorites KW - classification KW - mineral assemblages KW - ALH 84001 KW - interpretation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50085081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Pigeonholing+planetary+meteorites%3B+the+lessons+of+misclassification+of+EET87521+and+ALH84001&rft.au=Lindstrom%2C+M+M%3BTreiman%2C+A+H%3BMittlefehldt%2C+D+W%3BAnonymous&rft.aulast=Lindstrom&rft.aufirst=M&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=797&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; Allan Hills Meteorites; classification; EET 87521; Elephant Moraine Meteorites; interpretation; lunar meteorites; Martian meteorites; meteorites; mineral assemblages; stony meteorites ER - TY - JOUR T1 - Textural constraints on the formation of alteration phases in CM chondrites AN - 50084917; 1996-010809 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Joseph, L H AU - Browning, L B AU - Zolensky, M E AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 645 EP - 646 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - solar nebula KW - meteorites KW - stony meteorites KW - textures KW - brecciation KW - parent bodies KW - CM chondrites KW - carbonaceous chondrites KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50084917?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Textural+constraints+on+the+formation+of+alteration+phases+in+CM+chondrites&rft.au=Joseph%2C+L+H%3BBrowning%2C+L+B%3BZolensky%2C+M+E%3BAnonymous&rft.aulast=Joseph&rft.aufirst=L&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=645&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - brecciation; carbonaceous chondrites; chondrites; CM chondrites; meteorites; parent bodies; solar nebula; stony meteorites; textures ER - TY - JOUR T1 - Preliminary results of sulfide melt/silicate wetting experiments in a partially melted ordinary chondrite AN - 50082510; 1996-010813 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jurewicz, Stephen R AU - Jones, John H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 653 EP - 654 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - silicates KW - ordinary chondrites KW - experimental studies KW - stony meteorites KW - grain size KW - partial melting KW - melts KW - meteorites KW - wet methods KW - chondrites KW - sulfides KW - P-T conditions KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50082510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preliminary+results+of+sulfide+melt%2Fsilicate+wetting+experiments+in+a+partially+melted+ordinary+chondrite&rft.au=Jurewicz%2C+Stephen+R%3BJones%2C+John+H%3BAnonymous&rft.aulast=Jurewicz&rft.aufirst=Stephen&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=653&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chondrites; experimental studies; grain size; melts; meteorites; ordinary chondrites; P-T conditions; partial melting; silicates; stony meteorites; sulfides; wet methods ER - TY - JOUR T1 - The structural changes of water ice I during warmup AN - 50082486; 1996-010797 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jenniskens, Peter AU - Blake, David F AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 621 EP - 622 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - comets KW - ice KW - interstellar clouds KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50082486?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+structural+changes+of+water+ice+I+during+warmup&rft.au=Jenniskens%2C+Peter%3BBlake%2C+David+F%3BAnonymous&rft.aulast=Jenniskens&rft.aufirst=Peter&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=621&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - comets; ice; interstellar clouds ER - TY - JOUR T1 - Electron energy-loss spectroscopy of carbon in interplanetary dust particles AN - 50082133; 1996-010830 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Keller, Lindsay P AU - Bradley, John P AU - Thomas, Kathie L AU - McKay, David S AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 687 EP - 688 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - carbon KW - spectra KW - interpretation KW - chemical composition KW - spectroscopy KW - interplanetary dust KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50082133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Electron+energy-loss+spectroscopy+of+carbon+in+interplanetary+dust+particles&rft.au=Keller%2C+Lindsay+P%3BBradley%2C+John+P%3BThomas%2C+Kathie+L%3BMcKay%2C+David+S%3BAnonymous&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=687&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbon; chemical composition; interplanetary dust; interpretation; observations; spectra; spectroscopy ER - TY - JOUR T1 - Dust evolution from comets and asteroids; their velocities at Earth orbit intersection AN - 50082070; 1996-010791 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jackson, A A AU - Zook, H A AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 609 EP - 610 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - models KW - cosmic dust KW - comets KW - asteroids KW - velocity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50082070?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Dust+evolution+from+comets+and+asteroids%3B+their+velocities+at+Earth+orbit+intersection&rft.au=Jackson%2C+A+A%3BZook%2C+H+A%3BAnonymous&rft.aulast=Jackson&rft.aufirst=A&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=609&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; comets; cosmic dust; models; velocity ER - TY - JOUR T1 - Stratigraphic assessment of Gusev Crater as an exobiology landing site AN - 50080943; 1996-010867 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Landheim, Ragnhild AU - Nathalie, A AU - Greeley, Ronald AU - Farmer, Jack D AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 769 EP - 770 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - water KW - terrestrial planets KW - stratigraphy KW - planets KW - craters KW - channels KW - astrobiology KW - Mars KW - Ma'adim Vallis KW - terraces KW - Gusev Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50080943?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stratigraphic+assessment+of+Gusev+Crater+as+an+exobiology+landing+site&rft.au=Landheim%2C+Ragnhild%3BNathalie%2C+A%3BGreeley%2C+Ronald%3BFarmer%2C+Jack+D%3BAnonymous&rft.aulast=Landheim&rft.aufirst=Ragnhild&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=769&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - astrobiology; channels; craters; Gusev Crater; Ma'adim Vallis; Mars; planets; stratigraphy; terraces; terrestrial planets; water ER - TY - JOUR T1 - Experimental impacts into teflon targets and LDEF thermal blankets AN - 50080835; 1996-010771 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hoerz, M J AU - Cintala, M J AU - Zolensky, M E AU - Bernhard, R P AU - See, T H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 567 EP - 568 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - teflon KW - experimental studies KW - craters KW - thermal properties KW - planetology KW - impacts KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50080835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Experimental+impacts+into+teflon+targets+and+LDEF+thermal+blankets&rft.au=Hoerz%2C+M+J%3BCintala%2C+M+J%3BZolensky%2C+M+E%3BBernhard%2C+R+P%3BSee%2C+T+H%3BAnonymous&rft.aulast=Hoerz&rft.aufirst=M&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=567&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - craters; experimental studies; impacts; observations; planetology; teflon; thermal properties ER - TY - JOUR T1 - On the origin of enstatite chondrite chondrules based on their petrography and comparison with experimentally produced chondrules AN - 50079843; 1996-010883 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lofgren, G E AU - DeHart, J M AU - Burkett, P J AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 801 EP - 802 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - silicates KW - experimental studies KW - stony meteorites KW - meteorites KW - pyroxene group KW - chondrules KW - petrography KW - enstatite chondrites KW - orthopyroxene KW - mineral assemblages KW - chondrites KW - enstatite KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=On+the+origin+of+enstatite+chondrite+chondrules+based+on+their+petrography+and+comparison+with+experimentally+produced+chondrules&rft.au=Lofgren%2C+G+E%3BDeHart%2C+J+M%3BBurkett%2C+P+J%3BAnonymous&rft.aulast=Lofgren&rft.aufirst=G&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=801&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chain silicates; chondrites; chondrules; enstatite; enstatite chondrites; experimental studies; meteorites; mineral assemblages; orthopyroxene; petrography; pyroxene group; silicates; stony meteorites ER - TY - JOUR T1 - H (sub 2) O-H (sub 2) SO (sub 4) system in Venus' clouds and OCS, CO, and H (sub 2) SO (sub 4) profiles in Venus' troposphere AN - 50079774; 1996-010857 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Krasnopolsky, V A AU - Pollack, J B AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 747 EP - 748 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - water KW - terrestrial planets KW - clouds KW - planets KW - diffusion KW - mixing KW - Venus KW - hydrogen sulfide KW - troposphere KW - chemical composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=H+%28sub+2%29+O-H+%28sub+2%29+SO+%28sub+4%29+system+in+Venus%27+clouds+and+OCS%2C+CO%2C+and+H+%28sub+2%29+SO+%28sub+4%29+profiles+in+Venus%27+troposphere&rft.au=Krasnopolsky%2C+V+A%3BPollack%2C+J+B%3BAnonymous&rft.aulast=Krasnopolsky&rft.aufirst=V&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=747&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical composition; clouds; diffusion; hydrogen sulfide; mixing; planets; terrestrial planets; troposphere; Venus; water ER - TY - JOUR T1 - Possible spinel absorption bands in S-asteroid visible reflectance spectra AN - 50079579; 1996-010764 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hiroi, T AU - Vilas, F AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 553 EP - 554 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - solar system KW - absorption KW - mineral composition KW - asteroids KW - spinel KW - oxides KW - spectra KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Possible+spinel+absorption+bands+in+S-asteroid+visible+reflectance+spectra&rft.au=Hiroi%2C+T%3BVilas%2C+F%3BAnonymous&rft.aulast=Hiroi&rft.aufirst=T&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=553&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absorption; asteroids; mineral composition; oxides; reflectance; solar system; spectra; spinel ER - TY - JOUR T1 - Exploring meteorite mysteries; a teachers' guide with activities AN - 50079474; 1996-010880 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lindstrom, M M AU - Allen, J AU - Treiman, A H AU - Burch, J AU - Crowell, K AU - Stocco, K AU - Swaby, B AU - Luksch, R AU - Tobola, K AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 795 EP - 796 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - meteorites KW - K-12 education KW - high school KW - curricula KW - interpretation KW - education KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Exploring+meteorite+mysteries%3B+a+teachers%27+guide+with+activities&rft.au=Lindstrom%2C+M+M%3BAllen%2C+J%3BTreiman%2C+A+H%3BBurch%2C+J%3BCrowell%2C+K%3BStocco%2C+K%3BSwaby%2C+B%3BLuksch%2C+R%3BTobola%2C+K%3BAnonymous&rft.aulast=Lindstrom&rft.aufirst=M&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=795&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - curricula; education; high school; interpretation; K-12 education; meteorites ER - TY - JOUR T1 - New phosphides in the Kaidun Meteorite AN - 50079311; 1996-010784 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ivanov, A V AU - Zolensky, M E AU - Macpherson, G J AU - Yang, S V AU - Kononkova, N N AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 595 EP - 596 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - stony meteorites KW - grain size KW - phosphides KW - observations KW - meteorites KW - Kaidun Meteorite KW - crystallization KW - alloys KW - chondrites 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/50079311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+phosphides+in+the+Kaidun+Meteorite&rft.au=Ivanov%2C+A+V%3BZolensky%2C+M+E%3BMacpherson%2C+G+J%3BYang%2C+S+V%3BKononkova%2C+N+N%3BAnonymous&rft.aulast=Ivanov&rft.aufirst=A&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=595&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alloys; chemical composition; chondrites; crystallization; grain size; Kaidun Meteorite; meteorites; observations; phosphides; stony meteorites; sulfides; troilite ER - TY - JOUR T1 - Morphology of meteoroid and space debris craters on LDEF metal targets AN - 50079242; 1996-010887 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Love, S G AU - Brownlee, D E AU - King, N L AU - Hoerz, F AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 809 EP - 810 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - density KW - velocity KW - planetology KW - effects KW - properties KW - meteoroids KW - impacts KW - long duration exposure facility KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Morphology+of+meteoroid+and+space+debris+craters+on+LDEF+metal+targets&rft.au=Love%2C+S+G%3BBrownlee%2C+D+E%3BKing%2C+N+L%3BHoerz%2C+F%3BAnonymous&rft.aulast=Love&rft.aufirst=S&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=809&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - density; effects; impacts; long duration exposure facility; meteoroids; planetology; properties; velocity ER - TY - JOUR T1 - Moessbauer mineralogy of calcined Murchison Meteorite AN - 50079215; 1996-010950 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morris, Richard V AU - Zolensky, M E AU - Hiroi, T AU - Lipschutz, M E AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 941 EP - 942 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - stony meteorites KW - carbonaceous chondrites KW - metamorphism KW - temperature KW - Murchison Meteorite KW - meteorites KW - mineral composition KW - tochilinite KW - oxides KW - spectra KW - CM chondrites KW - chondrites KW - sulfides KW - Mossbauer spectra KW - magnetite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079215?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Moessbauer+mineralogy+of+calcined+Murchison+Meteorite&rft.au=Morris%2C+Richard+V%3BZolensky%2C+M+E%3BHiroi%2C+T%3BLipschutz%2C+M+E%3BAnonymous&rft.aulast=Morris&rft.aufirst=Richard&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=941&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; CM chondrites; magnetite; metamorphism; meteorites; mineral composition; Mossbauer spectra; Murchison Meteorite; oxides; spectra; stony meteorites; sulfides; temperature; tochilinite ER - TY - JOUR T1 - Formation of iron metal and grain coagulation in the solar nebula AN - 50078398; 1996-010983 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nuth, Joseph A, III AU - Berg, Otto AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1011 EP - 1012 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - solar nebula KW - silicates KW - processes KW - experimental studies KW - metals KW - planetology KW - iron KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50078398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Formation+of+iron+metal+and+grain+coagulation+in+the+solar+nebula&rft.au=Nuth%2C+Joseph+A%2C+III%3BBerg%2C+Otto%3BAnonymous&rft.aulast=Nuth&rft.aufirst=Joseph&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=1011&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - experimental studies; iron; metals; planetology; processes; silicates; solar nebula ER - TY - JOUR T1 - Alkali element constraints on Earth-Moon relations AN - 50078374; 1996-010982 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Norman, M D AU - Drake, M J AU - Jones, J H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1009 EP - 1010 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - accretion KW - Moon KW - rubidium KW - alkali metals KW - mantle KW - observations KW - alkalic composition KW - KREEP KW - cesium KW - metals KW - potassium KW - thorium KW - scandium KW - terrestrial comparison KW - uranium KW - rare earths KW - interpretation KW - actinides KW - crust KW - 02C:Geochemistry of rocks, soils, and sediments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50078374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Alkali+element+constraints+on+Earth-Moon+relations&rft.au=Norman%2C+M+D%3BDrake%2C+M+J%3BJones%2C+J+H%3BAnonymous&rft.aulast=Norman&rft.aufirst=M&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=1009&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 21 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accretion; actinides; alkali metals; alkalic composition; cesium; crust; interpretation; KREEP; mantle; metals; Moon; observations; potassium; rare earths; rubidium; scandium; terrestrial comparison; thorium; uranium ER - TY - JOUR T1 - Cr, Mn and Ca distributions for olivine in angritic systems; constraints on the origins of Cr-rich and Ca-poor core olivine in angrite LEW87051 AN - 50077770; 1996-010933 AB - Angrite meteorites are a type of basaltic achondrites that are noted for their very old cyrstallization ages (4.55 b.y.) and unusual chemical and mineralogical properties. In spite of great interest, only four angrites have been found. LEW87051 is the smallest one which weighs 0.6 g. It is a porphyritic rock with coarse subhedral to euhedral olivines set in a fine-grained groundmass which clearly represents a crystallized melt. The largest uncertainty about the petrogenesis of LEW87051 is the relationship between the large olivine crystals and the groundmass. Prinz et al. suggests that olivines are xenocrysts, while McKay et al. proposed a fractional crystallization model based on experimental studies. However, the crystals have Cr-rich and Ca-poor cores which do not match experimental olivines. Although Jurewicz and McKay tried to explaine the zoning of the rim by diffusion, some features are not explained. There also exists a definite composition boundary of Fe(2+) and MnO between the core and the rim. To clarify the origin of these olivines, we have performed experiments using LEW87051 analogs to measure the effects of oxygen fugacity on distribution coefficients of various elements in an angritic system. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mikouchi, T AU - McKay, G AU - Le, L AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 907 EP - 908 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - silicates KW - calcium KW - alkaline earth metals KW - stony meteorites KW - Lewis Cliff Meteorites KW - angrite KW - olivine group KW - manganese KW - distribution KW - achondrites KW - temperature KW - nesosilicates KW - meteorites KW - LEW 87051 KW - metals KW - olivine KW - orthosilicates KW - mineral assemblages KW - chromium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50077770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Cr%2C+Mn+and+Ca+distributions+for+olivine+in+angritic+systems%3B+constraints+on+the+origins+of+Cr-rich+and+Ca-poor+core+olivine+in+angrite+LEW87051&rft.au=Mikouchi%2C+T%3BMcKay%2C+G%3BLe%2C+L%3BAnonymous&rft.aulast=Mikouchi&rft.aufirst=T&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=907&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; angrite; calcium; chromium; distribution; LEW 87051; Lewis Cliff Meteorites; manganese; metals; meteorites; mineral assemblages; nesosilicates; olivine; olivine group; orthosilicates; silicates; stony meteorites; temperature ER - TY - JOUR T1 - New data supporting a (super 146-147) Sm- (super 142-143) Nd formation interval for the lunar mantle AN - 50077614; 1996-010986 AB - Very small variations in Nd-142 abundance in SNC meteorites lunar basalts, and a terrestrial supracrustal rock, have been attributed to the decay of 103 Ma Sm-146 initially present in basalt source regions in varying abundances as a result of planetary differentiation. We previously interpreted variations in Nd-142 abundances in two Apollo 17 high-Ti basalts, three Apollo 12 low-Ti basalts, and two KREEP basalts as defining an isochron giving a formation interval of approximately 94 Ma for the lunar mantle. Here we report new data for a third Apollo 17 high-Ti basalt, two Apollo 15 low-Ti basalts, the VLT basaltic lunar meteorite A881757 (formerly Asuka 31), basalt-like KREEP impact melt rocks 14310 and 14078, and three terrestrial rock standards. Those lunar samples which were not exposed to large lunar surface thermal neutron fluences yield a revised mantle formation interval of 237+ or -64 Ma. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nyquist, L E AU - Wiesmann, H AU - Bansal, B M AU - Shih, C Y AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1017 EP - 1018 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - KREEP KW - Nd-144/Nd-142 KW - volcanic rocks KW - Sm/Nd KW - Moon KW - igneous rocks KW - basalts KW - mantle KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50077614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+data+supporting+a+%28super+146-147%29+Sm-+%28super+142-143%29+Nd+formation+interval+for+the+lunar+mantle&rft.au=Nyquist%2C+L+E%3BWiesmann%2C+H%3BBansal%2C+B+M%3BShih%2C+C+Y%3BAnonymous&rft.aulast=Nyquist&rft.aufirst=L&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=1017&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basalts; igneous rocks; KREEP; mantle; Moon; Nd-144/Nd-142; observations; Sm/Nd; volcanic rocks ER - TY - JOUR T1 - Pre-bombardment crystallization ages of basaltic clasts from Antarctic howardites EET87503 and EET87513 AN - 50077559; 1996-010985 AB - Igneous clasts of basaltic eucrites are found in both howardites and polymict eucrites. We have studied the Rb-Sr and Sm-Nd isotopic systematics of a number of such clasts, of metamorphic grades 1-6, using the classification of Takeda and Graham. Here, we report Rb-Sr, (147)Sm-(143)Nd, and (145)Sm-(142)Nd studies of clast, 53 from Antarctic howardite EET87503. Although there is no evidence of disturbance of trace element systematics by Antarctic weathering, the Rb-Sr and conventional Sm-Nd isotopic systematics are severely disturbed, which we ascribe to thermal metamorphism. The Ar-Ar age spectrum shows ages ranging from approximately 3.85-3.55 Ga in an unusual "down stairstep". The (146)Sm-(142)Nd systematics, however, show the presence of live (146)Sm(t (super 1/2) = 103 Ma), with (146)Sm/(144)Sm = 0.0061+ or -0.0007 at the time of crystallization. This result is very similar to that previously obtained for basaltic clast, 18 from howardite EET87513 (paired with EET87503), which has concordant Rb-Sr and Sm-Nd ages of approximately 4.5 Ga. Thus, the two clasts are nearly the same age, and we conclude further than the EET87503,53 clast crystallized within 33+ or -19 Ma of the LEW86010 angrite by comparing initial (146)Sm/(144)Sm to that of the angrite. We suggest that disturbances in the isotopic systematics of EET87503,53 are consanguineous with pyroxene homogenization. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nyquist, L E AU - Shih, C Y AU - Wiesmann, H AU - Bansal, B M AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1015 EP - 1016 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - Ar/Ar KW - EET 87513 KW - Sm-146/Sm-144 KW - volcanic rocks KW - stony meteorites KW - igneous rocks KW - EET 87503 KW - Elephant Moraine Meteorites KW - clasts KW - achondrites KW - Rb/Sr KW - meteorites KW - Sm/Nd KW - howardite KW - dates KW - basalts KW - age KW - absolute age KW - crystallization KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50077559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Pre-bombardment+crystallization+ages+of+basaltic+clasts+from+Antarctic+howardites+EET87503+and+EET87513&rft.au=Nyquist%2C+L+E%3BShih%2C+C+Y%3BWiesmann%2C+H%3BBansal%2C+B+M%3BAnonymous&rft.aulast=Nyquist&rft.aufirst=L&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=1015&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; age; Ar/Ar; basalts; clasts; crystallization; dates; EET 87503; EET 87513; Elephant Moraine Meteorites; howardite; igneous rocks; meteorites; Rb/Sr; Sm-146/Sm-144; Sm/Nd; stony meteorites; volcanic rocks ER - TY - JOUR T1 - Calorimetric thermobarometry of experimentally shocked quartz AN - 50076064; 1996-010988 AB - Structural damage in experimentally shock-metamorphosed, granular quartz is quantitatively measurable by differential scanning calorimetry (DSC). Shock-induced loss of crystallinity is witnessed by disappearance of the alpha/beta phase transformation and evolution of a broad endoenthalpic strain peak at 650-900 K. The strain-energy peak grows rapidly at less than 10 GPa but declines with increasing shock pressure; it approaches zero at 32 GPa where vitrification is extensive. Effects of grain size and post-shock thermal history must be better understood before calorimetric thermobarometry of naturally shocked samples becomes possible. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ocker, Katherine D AU - Gooding, James L AU - Hoerz, Friedrich AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1021 EP - 1022 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - silicates KW - experimental studies KW - geologic barometry KW - impact features KW - silica minerals KW - meteor craters KW - metamorphism KW - quartz KW - impact craters KW - framework silicates KW - shock metamorphism KW - P-T conditions KW - calorimetry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50076064?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Calorimetric+thermobarometry+of+experimentally+shocked+quartz&rft.au=Ocker%2C+Katherine+D%3BGooding%2C+James+L%3BHoerz%2C+Friedrich%3BAnonymous&rft.aulast=Ocker&rft.aufirst=Katherine&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=1021&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - calorimetry; experimental studies; framework silicates; geologic barometry; impact craters; impact features; metamorphism; meteor craters; P-T conditions; quartz; shock metamorphism; silica minerals; silicates ER - TY - JOUR T1 - Measurement of the decay rate of the SiH feature as a function of temperature AN - 50076018; 1996-010984 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nuth, Joseph A, III AU - Kraus, George F AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 1013 EP - 1014 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - silicates KW - processes KW - oxidation KW - solar wind KW - effects KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50076018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Measurement+of+the+decay+rate+of+the+SiH+feature+as+a+function+of+temperature&rft.au=Nuth%2C+Joseph+A%2C+III%3BKraus%2C+George+F%3BAnonymous&rft.aulast=Nuth&rft.aufirst=Joseph&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=1013&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - effects; oxidation; processes; silicates; solar wind ER - TY - JOUR T1 - Ferromagnetic resonance spectra of H (sub 2) -reduced minerals and glasses AN - 50075321; 1996-010948 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morris, Richard V AU - Allen, Carlton C AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 937 EP - 938 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - volcanic rocks KW - glasses KW - Moon KW - igneous rocks KW - ferromagnetic spectra KW - mineral assemblages KW - basaltic composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50075321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ferromagnetic+resonance+spectra+of+H+%28sub+2%29+-reduced+minerals+and+glasses&rft.au=Morris%2C+Richard+V%3BAllen%2C+Carlton+C%3BAnonymous&rft.aulast=Morris&rft.aufirst=Richard&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=937&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basaltic composition; ferromagnetic spectra; glasses; igneous rocks; mineral assemblages; Moon; volcanic rocks ER - TY - JOUR T1 - Partition coefficents for Al, Ca, Ti, Cr, and Ni in olivine obtained by melting experiment on an LL6 chondrite AN - 50075294; 1996-010941 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Miyamoto, M AU - Mikouchi, T AU - McKay, G A AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 923 EP - 924 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - silicates KW - calcium KW - alkaline earth metals KW - experimental studies KW - stony meteorites KW - olivine group KW - nesosilicates KW - partitioning KW - meteorites KW - melting KW - titanium KW - metals KW - aluminum KW - olivine KW - orthosilicates KW - nickel KW - LL6 Meteorite KW - chondrites KW - chemical composition KW - chromium 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/50075294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Partition+coefficents+for+Al%2C+Ca%2C+Ti%2C+Cr%2C+and+Ni+in+olivine+obtained+by+melting+experiment+on+an+LL6+chondrite&rft.au=Miyamoto%2C+M%3BMikouchi%2C+T%3BMcKay%2C+G+A%3BAnonymous&rft.aulast=Miyamoto&rft.aufirst=M&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=923&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aluminum; calcium; chemical composition; chondrites; chromium; experimental studies; LL6 Meteorite; melting; metals; meteorites; nesosilicates; nickel; olivine; olivine group; orthosilicates; partitioning; silicates; stony meteorites; titanium ER - TY - JOUR T1 - Synthetic and national Nakhla pyroxenes; parent melt composition and REE partition coefficients AN - 50075139; 1996-010923 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McKay, G AU - Le, L AU - Wagstaff, J AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 883 EP - 884 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - silicates KW - nakhlite KW - stony meteorites KW - Martian meteorites KW - parent bodies KW - Nakhla Meteorite KW - achondrites KW - melts KW - SNC Meteorites KW - partitioning KW - meteorites KW - pyroxene group KW - metals KW - crystallization KW - rare earths KW - mineral assemblages KW - chain silicates 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/50075139?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Synthetic+and+national+Nakhla+pyroxenes%3B+parent+melt+composition+and+REE+partition+coefficients&rft.au=McKay%2C+G%3BLe%2C+L%3BWagstaff%2C+J%3BAnonymous&rft.aulast=McKay&rft.aufirst=G&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=883&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; chain silicates; crystallization; Martian meteorites; melts; metals; meteorites; mineral assemblages; Nakhla Meteorite; nakhlite; parent bodies; partitioning; pyroxene group; rare earths; silicates; SNC Meteorites; stony meteorites ER - TY - JOUR T1 - Production of ferroan andesites by the experimental partial melting of an LL chondrite AN - 50074264; 1996-010921 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McGuire, J C AU - Jurewicz, A J G AU - Jones, J H AU - Anonymous Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 879 EP - 880 PB - Lunar and Planetary Science Conference, Houston, TX VL - 25, Part 2 KW - ordinary chondrites KW - experimental studies KW - andesites KW - volcanic rocks KW - stony meteorites KW - oxygen KW - igneous rocks KW - partial melting KW - LL chondrites KW - fugacity KW - meteorites KW - mineral assemblages KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50074264?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Production+of+ferroan+andesites+by+the+experimental+partial+melting+of+an+LL+chondrite&rft.au=McGuire%2C+J+C%3BJurewicz%2C+A+J+G%3BJones%2C+J+H%3BAnonymous&rft.aulast=McGuire&rft.aufirst=J&rft.date=1994-03-01&rft.volume=25%2C+Part+2&rft.issue=&rft.spage=879&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - andesites; chondrites; experimental studies; fugacity; igneous rocks; LL chondrites; meteorites; mineral assemblages; ordinary chondrites; oxygen; partial melting; stony meteorites; volcanic rocks ER - TY - JOUR T1 - Relativistic electron acceleration and decay time scales in the inner and outer radiation belts: SAMPEX AN - 1530980631; 19555361 AB - High-energy electrons have been measured systematically in a low-altitude (520 675 km), nearly polar (inclination = 82 degree ) orbit by sensitive instruments onboard the Solar, Anomalous, and Magnetospheric Particle Explorer (SAMPEX). Count rate channels with electron energy thresholds ranging from 0.4 MeV to 3.5 MeV in three different instruments have been used to examine relativistic electron variations as a function of L-shell parameter and time. A long run of essentially continuous data (July 1992-July 1993) shows substantial acceleration of energetic electrons throughout much of the magnetosphere on rapid time scales. This acceleration appears to be due to solar wind velocity enhancements and is surprisingly large in that the radiation belt "slot" region often is filled temporarily and electron fluxes are strongly enhanced even at very low L-values (L 2). A superposed epoch analysis shows that electron fluxes rise rapidly for 2.5 L 5. These increases occur on a time scale of order 1-2 days and are most abrupt for L-values near 3. The temporal decay rate of the fluxes is dependent on energy and L-value and may be described by J = Ke-t/to with t sub(o) approximately 5-10 days. Thus, these results suggest that the Earth's magnetosphere is a cosmic electron accelerator of substantial strength and efficiency. JF - Geophysical Research Letters AU - Baker, D N AU - Blake, J B AU - Callis, L B AU - Cummings, J R AU - Hovestadt, D AU - Kanekal, S AU - Klecker, B AU - Mewaldt, R A AU - Zwickl, R D AD - NASA/Goddard Space Flight Center, Greenbelt, MD. Y1 - 1994/03// PY - 1994 DA - March 1994 SP - 409 EP - 412 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 21 IS - 6 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Velocity KW - Particulates KW - Acceleration KW - Channels KW - Strength KW - Radiation KW - Energy KW - Cosmic radiation KW - Wind Velocity KW - Decay KW - Wind KW - Q2 09262:Methods and instruments KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1530980631?accountid=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=Relativistic+electron+acceleration+and+decay+time+scales+in+the+inner+and+outer+radiation+belts%3A+SAMPEX&rft.au=Baker%2C+D+N%3BBlake%2C+J+B%3BCallis%2C+L+B%3BCummings%2C+J+R%3BHovestadt%2C+D%3BKanekal%2C+S%3BKlecker%2C+B%3BMewaldt%2C+R+A%3BZwickl%2C+R+D&rft.aulast=Baker&rft.aufirst=D&rft.date=1994-03-01&rft.volume=21&rft.issue=6&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL03532 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Radiation; Decay; Acceleration; Energy; Cosmic radiation; Velocity; Particulates; Wind; Channels; Strength; Wind Velocity DO - http://dx.doi.org/10.1029/93GL03532 ER - TY - JOUR T1 - Remote sensing of tropical wetlands for malaria control in Chiapas, Mexico. AN - 77111243; 11539870 AB - Malaria, transmitted by anopheline mosquitoes, remains a serious health problem in the tropics. Most malaria eradication efforts focus on control of anopheline vectors. These efforts include the NASA Di-Mod project, whose current goal is to integrate remote sensing, geographic information systems (GIS), and field research to predict anopheline mosquito population dynamics in the Pacific coastal plain of Chiapas, Mexico. Field studies demonstrate that high larval production of Anopheles albimanus, the principal malaria vector in the plain, can be linked to a small number of larval habitat-types, determined by larval sampling and cluster analysis of wetlands in the coastal plain. Analysis of wet and dry season Landsat Thematic Mapper (TM) satellite imagery identified 16 land cover units within an 185-km2 study area in the coastal zone. A hierarchical approach was used to link the larval habitat-types with the larger land cover units and make predictions of potential and actual low, medium, and high anopheline production. The TM-based map and GIS techniques were then used to predict differences in anopheline production at two villages, La Victoria and Efrain Gutierrez. La Victoria was predicted to have much higher Anopheles albimanus production, based upon a 2-10 times greater extent of medium- and high-producing land cover units in its vicinity. This difference between villages was independently supported by sampling (with light traps) of adults, which were 5-10 times more abundant in La Victoria. JF - Ecological applications : a publication of the Ecological Society of America AU - Pope, K O AU - Rejmankova, E AU - Savage, H M AU - Arredondo-Jimenez, J I AU - Rodriguez, M H AU - Roberts, D R AD - Geo Eco Arc Research, La Canada, California 91011, USA. Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 81 EP - 90 VL - 4 IS - 1 SN - 1051-0761, 1051-0761 KW - Space life sciences KW - Ecosystem KW - Animals KW - Image Interpretation, Computer-Assisted KW - Larva KW - Epidemiological Monitoring KW - Mexico -- epidemiology KW - Geography KW - Image Processing, Computer-Assisted KW - Mosquito Control -- methods KW - Malaria -- prevention & control KW - Malaria -- epidemiology KW - Anopheles -- growth & development KW - Malaria -- transmission KW - Insect Vectors KW - Satellite Communications KW - Mosquito Control -- instrumentation KW - Environmental Monitoring -- methods KW - Environmental Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111243?accountid=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=Ecological+applications+%3A+a+publication+of+the+Ecological+Society+of+America&rft.atitle=Remote+sensing+of+tropical+wetlands+for+malaria+control+in+Chiapas%2C+Mexico.&rft.au=Pope%2C+K+O%3BRejmankova%2C+E%3BSavage%2C+H+M%3BArredondo-Jimenez%2C+J+I%3BRodriguez%2C+M+H%3BRoberts%2C+D+R&rft.aulast=Pope&rft.aufirst=K&rft.date=1994-02-01&rft.volume=4&rft.issue=1&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Ecological+applications+%3A+a+publication+of+the+Ecological+Society+of+America&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-09-14 N1 - Date created - 1997-09-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Archean geochemistry of formaldehyde and cyanide and the oligomerization of cyanohydrin. AN - 76311501; 11536656 AB - The sources and speciation of reduced carbon and nitrogen inferred for the early Archean are reviewed in terms of current observations and models, and known chemical reactions. Within this framework hydrogen cyanide and cyanide ion in significant concentration would have been eliminated by reaction with excess formaldehyde to form cyanohydrin (glycolonitrile), and with ferrous ion to form ferrocyanide. Natural reactions of these molecules would under such conditions deserve special consideration in modeling of primordial organochemical processes. As a step in this direction, transformation reactions have been investigated involving glycolonitrile in the presence of water. We find that glycolonitrile, formed from formaldehyde and hydrogen cyanide or cyanide ion, spontaneously cyclodimerizes to 4-amino-2-hydroxymethyloxazole. The crystalline dimer is the major product at low temperature (approximately 0 degrees C); the yield diminishes with increasing temperature at the expense of polymerization and hydrolysis products. Hydrolysis of glycolonitrile and of oxazole yields a number of simpler organic molecules, including ammonia and glycolamide. The spontaneous polymerization of glycolonitrile and its dimer gives rise to soluble, cationic oligomers of as yet unknown structure, and, unless arrested, to a viscous liquid, insoluble in water. A loss of cyanide by reaction with formaldehyde, inferred for the early terrestrial hydrosphere and cryosphere would present a dilemma for hypotheses invoking cyanide and related compounds as concentrated reactants capable of forming biomolecular precursor species. Attempts to escape from its horns may take advantage of the efficient concentration and separation of cyanide as solid ferriferrocyanide, and most directly of reactions of glycolonitrile and its derivatives. JF - Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life AU - Arrhenius, T AU - Arrhenius, G AU - Paplawsky, W AD - Cytel Corporation, La Jolla, CA 92121, USA. Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 1 EP - 17 VL - 24 IS - 1 SN - 0169-6149, 0169-6149 KW - Acetonitriles KW - 0 KW - Cyanides KW - Formaldehyde KW - 1HG84L3525 KW - Hydrogen Cyanide KW - 2WTB3V159F KW - Carbon KW - 7440-44-0 KW - Hydrogen KW - 7YNJ3PO35Z KW - Nitrogen KW - N762921K75 KW - glycolonitrile KW - ZCI474BE63 KW - Space life sciences KW - NASA Discipline Exobiology KW - Non-NASA Center KW - Spectrophotometry, Infrared KW - Crystallization KW - Mass Spectrometry KW - Acetylation KW - Nitrogen -- analysis KW - Cold Temperature KW - Carbon -- analysis KW - Hydrogen -- analysis KW - Magnetic Resonance Spectroscopy KW - Evolution, Planetary KW - Acetonitriles -- chemistry KW - Hydrogen Cyanide -- chemical synthesis KW - Cyanides -- chemistry KW - Hydrogen Cyanide -- chemistry KW - Cyanides -- chemical synthesis KW - Formaldehyde -- chemistry KW - Acetonitriles -- chemical synthesis KW - Formaldehyde -- chemical synthesis KW - Evolution, Chemical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76311501?accountid=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=Origins+of+life+and+evolution+of+the+biosphere+%3A+the+journal+of+the+International+Society+for+the+Study+of+the+Origin+of+Life&rft.atitle=Archean+geochemistry+of+formaldehyde+and+cyanide+and+the+oligomerization+of+cyanohydrin.&rft.au=Arrhenius%2C+T%3BArrhenius%2C+G%3BPaplawsky%2C+W&rft.aulast=Arrhenius&rft.aufirst=T&rft.date=1994-02-01&rft.volume=24&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Origins+of+life+and+evolution+of+the+biosphere+%3A+the+journal+of+the+International+Society+for+the+Study+of+the+Origin+of+Life&rft.issn=01696149&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-05-28 N1 - Date created - 2000-05-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Astronaut photographs of Earth; an educational resource AN - 52775653; 1996-079740 JF - Abstracts with Programs - Geological Society of America AU - Willis, Kimberly J AU - Evans, Cynthia A AU - Amsbury, David L AU - Anonymous Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 30 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 1 SN - 0016-7592, 0016-7592 KW - imagery KW - Earth KW - SSEOP KW - government agencies KW - data processing KW - space photography KW - educational resources KW - photogeology KW - NASA KW - data bases KW - geomorphology KW - meteorology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52775653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Astronaut+photographs+of+Earth%3B+an+educational+resource&rft.au=Willis%2C+Kimberly+J%3BEvans%2C+Cynthia+A%3BAmsbury%2C+David+L%3BAnonymous&rft.aulast=Willis&rft.aufirst=Kimberly&rft.date=1994-02-01&rft.volume=26&rft.issue=1&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, South-Central Section, 28th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - data bases; data processing; Earth; educational resources; geomorphology; government agencies; imagery; meteorology; NASA; photogeology; space photography; SSEOP ER - TY - JOUR T1 - The emerging science of exopaleontology AN - 50340286; 1994-054967 JF - Abstracts with Programs - Geological Society of America AU - Farmer, Jack D AU - Des Marais, David J AU - Anonymous Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 50 EP - 51 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 2 SN - 0016-7592, 0016-7592 KW - terrestrial planets KW - planets KW - astrobiology KW - Mars KW - concepts KW - possibilities KW - life origin KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50340286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+emerging+science+of+exopaleontology&rft.au=Farmer%2C+Jack+D%3BDes+Marais%2C+David+J%3BAnonymous&rft.aulast=Farmer&rft.aufirst=Jack&rft.date=1994-02-01&rft.volume=26&rft.issue=2&rft.spage=50&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, 90th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - astrobiology; concepts; life origin; Mars; planets; possibilities; terrestrial planets ER - TY - JOUR T1 - Acidified oxalate and dithionite solubility and color of synthetic, partially oxidized Al-magnetites and their thermal oxidation products AN - 50266205; 1994-026437 AB - Submicron-sized ( approximately 3-60 nm) powders of Al-substituted magnetite were synthesized in the laboratory by precipitation methods by mixing appropriate molar volumes FeCl (sub 2) , FeCl (sub 3) and AlCl (sub 3) solutions and precipitating with 20% NH (sub 4) OH. Precipitates were dialyzed for 48 hr to remove excess salts and then freeze-dried. The nominal Al mole fractions [Al (sub s) = Al/(Al + Fe)] in the initial precipitate ranged from 0.001 to 0.42. Portions of the resulting powders were heated sequentially in air at 400 degrees and 500 degrees C. Powders were examined using X-ray diffraction (XRD), transmission electron microscopy (TEM), and visible and near-IR reflectance spectroscopy. Solubilities were determined in ammonium oxalate (pH = 3) and dithionite-citrate-bicarbonate (DCB) solutions. As determined by XRD, the mineralogy of precipitated powder samples was predominantly magnetite. Powders having Al (sub s) > 0.20 contained minor goethite and a poorly crystalline iron oxide phase (ferrihydrite?), and powders having Al (sub s) > 0.25 also contained gibbsite. The color of the magnetites was black throughout the range of Al-substitution. Powders heated to 400 degrees C were reddish brown; Munsell colors ranged from 5R 2/2 to 10R 3/4 for Al, from 0.1-41.5%, respectively. By XRD, these powders were maghemite, but hematite was also detected by Moessbauer spectroscopy. XRD and Moessbauer data indicate powders heated to 500 degrees C are hematite; their Munsell colors are not noticeably different from the corresponding 400 degrees C samples. Mean crystallite dimensions (MCDs) of the magnetite powders increase with the Al mole fraction from approximately 10 nm for Al (sub s) = 0.001% to a maximum value of 35 nm for Al (sub s) = 0.15 and decrease slightly with further increasing Al substitution. Heating magnetite powders to 400 degrees C did not change the MCDs significantly. Heating to 500 degrees C resulted in hematites having MCDs larger than those for corresponding precursor magnetites for Al (sub s) 0.10. For hematite powders with Al (sub s) > 0.05, MCD decreased with increasing Al-substitution. Solubilities of powders in oxalate solutions were independent of Al content and decreased in the order unheated samples (mostly magnetite) >400 degrees C-heated samples (maghemite + hematite) >500 degrees C-heated samples (hematite). All powders dissolved completely in DCB. The low crystallinity of the magnetite powders and the presence of ferrous iron are responsible for their relatively high solubility in oxalate solutions. JF - Clays and Clay Minerals AU - Golden, D C AU - Ming, D W AU - Bowen, L H AU - Morris, R V AU - Lauer, H V, Jr Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 53 EP - 62 PB - Clay Minerals Society, Clarkson, NY VL - 42 IS - 1 SN - 0009-8604, 0009-8604 KW - experimental studies KW - X-ray diffraction data KW - oxidation KW - clay mineralogy KW - substitution KW - oxalates KW - solubility KW - TEM data KW - crystallinity KW - dithionite KW - hematite KW - metals KW - aluminum KW - chemical properties KW - oxides KW - synthesis KW - maghemite KW - magnetite KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50266205?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Acidified+oxalate+and+dithionite+solubility+and+color+of+synthetic%2C+partially+oxidized+Al-magnetites+and+their+thermal+oxidation+products&rft.au=Golden%2C+D+C%3BMing%2C+D+W%3BBowen%2C+L+H%3BMorris%2C+R+V%3BLauer%2C+H+V%2C+Jr&rft.aulast=Golden&rft.aufirst=D&rft.date=1994-02-01&rft.volume=42&rft.issue=1&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 1994-01-01 N1 - Number of references - 21 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - aluminum; chemical properties; clay mineralogy; crystallinity; dithionite; experimental studies; hematite; maghemite; magnetite; metals; oxalates; oxidation; oxides; solubility; substitution; synthesis; TEM data; X-ray diffraction data ER - TY - JOUR T1 - Comment on Rubidium and cesium in the Earth and the Moon; discussion and reply AN - 50250812; 1994-025939 AB - Jones & Drake do not appear to recognize the large uncertainties in the abundances and distribution of Rb and Cs in the Earth and they also ignore evidence implying the existence of at least one additional mantle reservoir for Rb and Cs apart from continental crustal and the MORB and OIB reservoirs in the mantle. JF - Geochimica et Cosmochimica Acta AU - McDonough, W F AU - Ringwood, A E AU - Sun, S S AU - Jagoutz, E AU - Hofmann, A W AU - Jones, J H AU - Drake, M J Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 1385 EP - 1387 PB - Pergamon, Oxford VL - 58 IS - 4 SN - 0016-7037, 0016-7037 KW - alkaline earth metals KW - volcanic rocks KW - Moon KW - igneous rocks KW - rubidium KW - alkali metals KW - mantle KW - cesium KW - metals KW - mass balance KW - basalts KW - Rb/Cs KW - ocean-island basalts KW - crust KW - 02C:Geochemistry of rocks, soils, and sediments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50250812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Comment+on+Rubidium+and+cesium+in+the+Earth+and+the+Moon%3B+discussion+and+reply&rft.au=McDonough%2C+W+F%3BRingwood%2C+A+E%3BSun%2C+S+S%3BJagoutz%2C+E%3BHofmann%2C+A+W%3BJones%2C+J+H%3BDrake%2C+M+J&rft.aulast=McDonough&rft.aufirst=W&rft.date=1994-02-01&rft.volume=58&rft.issue=4&rft.spage=1385&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990391-3 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 - 1994-01-01 N1 - Number of references - 16 N1 - SuppNotes - For reference to original see Jones, J. H. and Drake, M. J., Geochim. et Cosmochim. Acta, Vol. 57, p. 3785-3792, 1993 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; basalts; cesium; crust; igneous rocks; mantle; mass balance; metals; Moon; ocean-island basalts; Rb/Cs; rubidium; volcanic rocks DO - http://dx.doi.org/10.1016/0016-7037(94)90391-3 ER - TY - JOUR T1 - Trace element identification of three chemically distinct very low titanium (VLT) basalt glasses from Apollo 17 AN - 50250755; 1994-025937 AB - Analyses are presented of major and trace elements of glass samples from these basalts, using wavelength-dispersive microprobe and high-sensitivity INAA methods. The results allow delineation of three distinct VLT compositions -- based on Co contents, MgO, Al (sub 2) O (sub 3) , CaO/Al (sub 2) O (sub 3) and Mg/(Mg+Fe) ratios. High-Co VLT glasses appear to be pristine pyroclasts. Medium-Co glasses may represent impact melts from a pure VLT source, but low- Co glasses are more problematical. JF - Geochimica et Cosmochimica Acta AU - Lindstrom, David J AU - Wentworth, Susan J AU - Martinez, Rene R AU - McKay, David S Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 1367 EP - 1375 PB - Pergamon, Oxford VL - 58 IS - 4 SN - 0016-7037, 0016-7037 KW - volcanic rocks KW - glasses KW - Moon KW - igneous rocks KW - Apollo Program KW - maria KW - volcanic glass KW - titanium KW - metals KW - trace elements KW - chemical composition KW - basaltic composition KW - Apollo 17 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50250755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Trace+element+identification+of+three+chemically+distinct+very+low+titanium+%28VLT%29+basalt+glasses+from+Apollo+17&rft.au=Lindstrom%2C+David+J%3BWentworth%2C+Susan+J%3BMartinez%2C+Rene+R%3BMcKay%2C+David+S&rft.aulast=Lindstrom&rft.aufirst=David&rft.date=1994-02-01&rft.volume=58&rft.issue=4&rft.spage=1367&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2894%2990388-3 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 - 1994-01-01 N1 - Number of references - 26 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Apollo 17; Apollo Program; basaltic composition; chemical composition; glasses; igneous rocks; maria; metals; Moon; titanium; trace elements; volcanic glass; volcanic rocks DO - http://dx.doi.org/10.1016/0016-7037(94)90388-3 ER - TY - JOUR T1 - Ozone response to enhanced heterogeneous processing after the eruption of Mt. Pinatubo AN - 50178908; 1994-054430 AB - Increases in aerosol loading after the Pinatubo eruption are expected to cause additional ozone depletion. Even though aerosol loadings were highest in the winter of 1991-1992, recent analyses of satellite and ground-based ozone measurements indicate that ozone levels in the winter of 1992-1993 are the lowest recorded in recent years, raising the question of the mechanisms responsible for such behavior. We have incorporated aerosol surface areas derived from the Stratospheric Aerosol and Gas Experiment II (SAGE-II) measurements into our two-dimensional model. Inclusion of heterogeneous chemistry on these enhanced aerosol surfaces yields maximum ozone reductions during the winter of 1992-1993 in the Northern Hemisphere, consistent with those derived from observations. This delayed behavior is due to the combination of the non-linear nature of the impact of heterogeneous reactions as a function of aerosol surface area, and the long time constants for ozone in the lower stratosphere. If heterogeneous mechanisms are primarily responsible for the low 1992-1993 ozone levels, we expect ozone concentrations to start recovering in 1994. Copyright 1994 by the American Geophysical Union. JF - Geophysical Research Letters AU - Rodriguez, Jose M AU - Ko, M K W AU - Sze, N D AU - Heisey, C W AU - Yue, Glenn K AU - McCormick, M P Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 209 EP - 212 PB - American Geophysical Union, Washington, DC VL - 21 IS - 3 SN - 0094-8276, 0094-8276 KW - Luzon KW - Far East KW - three-dimensional models KW - mechanism KW - atmosphere KW - Stratospheric Aerosol and Gas Experiment II KW - SAGE II KW - ozone KW - stratosphere KW - Mount Pinatubo KW - heterogeneous materials KW - chemical reactions KW - Philippine Islands KW - eruptions KW - volcanoes KW - aerosols KW - Northern Hemisphere KW - Asia KW - geochemistry KW - 24:Quaternary geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50178908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Ozone+response+to+enhanced+heterogeneous+processing+after+the+eruption+of+Mt.+Pinatubo&rft.au=Rodriguez%2C+Jose+M%3BKo%2C+M+K+W%3BSze%2C+N+D%3BHeisey%2C+C+W%3BYue%2C+Glenn+K%3BMcCormick%2C+M+P&rft.aulast=Rodriguez&rft.aufirst=Jose&rft.date=1994-02-01&rft.volume=21&rft.issue=3&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL03537 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; chemical reactions; eruptions; Far East; geochemistry; heterogeneous materials; Luzon; mechanism; Mount Pinatubo; Northern Hemisphere; ozone; Philippine Islands; SAGE II; stratosphere; Stratospheric Aerosol and Gas Experiment II; three-dimensional models; volcanoes DO - http://dx.doi.org/10.1029/93GL03537 ER - TY - JOUR T1 - A geopotential model from satellite tracking, altimeter, and surface gravity data AN - 50173165; 1995-037353 AB - An improved model of Earth's gravitational field, GEM-T3, has been developed from a combination of satellite tracking, satellite altimeter, and surface gravimetric data. GEM-T3 provides a significant improvement in the modeling of the gravity field at half wavelengths of 400 km and longer. This model, complete to degree and order 50, yields more accurate satellite orbits and an improved geoid representation than previous Goddard Earth Models. GEM-T3 uses altimeter data from GEOS 3 (1975-1976), Seasat (1978) and Geosat (1986-1987). Tracking information used in the solution includes more than 1300 arcs of data encompassing 31 different satellites. The recovery of the long-wavelength components of the solution relies mostly on highly precise satellite laser ranging (SLR) data, but also includes TRANET Doppier, optical, and satellite-to-satellite tracking acquired between the ATS 6 and GEOS 3 satellites. The main advances over GEM-T2 (beyond the inclusion of altimeter and surface gravity information which is essential for the resolution of the shorter wavelength geoid) are some improved tracking data analysis approaches and additional SLR data. Although the use of altimeter data has greatly enhanced the modeling of the ocean geoid between 65 degrees N and 60 degrees S latitudes in GEM-T3, the lack of accurate detailed surface gravimetry leaves poor geoid resolution over many continental regions of great tectonic interest (e.g., Himalayas, Andes). Estimates of polar motion, tracking station coordinates, and long-wavelength ocean tidal terms were also made (accounting for 6330 parameters). GEM-T3 has undergone error calibration using a technique based on subset solutions to produce reliable error estimates. The calibration is based on the condition that the expected mean square deviation of a subset gravity solution from the full set values is predicted by the solutions' error covariances. Data weights are iteratively adjusted until this condition for the error calibration is satisfied. In addition, gravity field tests were performed on strong satellite data sets withheld from the solution (thereby ensuring their independence). In these tests, the performance of the subset models on the withheld observations is compared to error projections based on their calibrated error covariances. These results demonstrate that orbit accuracy projections are reliable for new satellites which were not included in GEM-T3. Copyright 1994 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Lerch, F J AU - Nerem, R S AU - Putney, B H AU - Felsentreger, T L AU - Sanchez, B V AU - Marshall, J A AU - Klosko, S M AU - Patel, G B AU - Williamson, R G AU - Chinn, D S AU - Chan, J C AU - Rachlin, K E AU - Chandler, N L AU - McCarthy, J J AU - Luthcke, S B AU - Pavlis, N K AU - Pavlis, D E AU - Robbins, J W AU - Kopoor, S AU - Pavlis, E C Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 2815 EP - 2839 PB - American Geophysical Union, Washington, DC VL - 99 IS - B2 SN - 0148-0227, 0148-0227 KW - GEM-T3 KW - laser ranging KW - altimetry KW - geodesy KW - satellite methods KW - models KW - gravity field KW - Goddard Earth Models series KW - orbital observations KW - accuracy KW - geoid KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50173165?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=A+geopotential+model+from+satellite+tracking%2C+altimeter%2C+and+surface+gravity+data&rft.au=Lerch%2C+F+J%3BNerem%2C+R+S%3BPutney%2C+B+H%3BFelsentreger%2C+T+L%3BSanchez%2C+B+V%3BMarshall%2C+J+A%3BKlosko%2C+S+M%3BPatel%2C+G+B%3BWilliamson%2C+R+G%3BChinn%2C+D+S%3BChan%2C+J+C%3BRachlin%2C+K+E%3BChandler%2C+N+L%3BMcCarthy%2C+J+J%3BLuthcke%2C+S+B%3BPavlis%2C+N+K%3BPavlis%2C+D+E%3BRobbins%2C+J+W%3BKopoor%2C+S%3BPavlis%2C+E+C&rft.aulast=Lerch&rft.aufirst=F&rft.date=1994-02-01&rft.volume=99&rft.issue=B2&rft.spage=2815&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JB02759 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 48 N1 - PubXState - DC N1 - Document feature - illus. incl. 12 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; altimetry; GEM-T3; geodesy; geoid; Goddard Earth Models series; gravity field; laser ranging; models; orbital observations; remote sensing; satellite methods DO - http://dx.doi.org/10.1029/93JB02759 ER - TY - JOUR T1 - Gravity model improvement using the DORIS tracking system on the SPOT 2 satellite AN - 50170283; 1995-037352 AB - A high-precision radiometric satellite tracking system, DORIS, has recently been developed by the French space agency, Centre National d'Etudes Spatiales (CNES). DORIS was designed to provide tracking support for missions such as the joint United States/French TOPEX/Poseidon. As part of the flight testing process, a DORIS package was flown on the French SPOT 2 satellite. A substantial quantity of geodetic quality tracking data was obtained on SPOT 2 from an extensive international DORIS tracking network. These data were analyzed to assess their accuracy and to evaluate the gravitational modeling enhancements provided by these data in combination with the GEM-T3 gravitational model. These observations have noise levels of 0.4 to 0.5 mm/s, with few residual systematic effects. Although the SPOT 2 satellite experiences high atmospheric drag forces, the precision and global coverage of the DORIS tracking data have enabled more extensive orbit parameterization to mitigate these effects. As a result, the SPOT 2 orbital errors have been reduced to an estimated radial accuracy in the 10-20 cm RMS range. The addition of these data, which encompass many regions heretofore lacking in precision satellite tracking, has significantly improved GEM-T3 and allowed greatly improved orbit accuracies for Sun-synchronous satellites like SPOT 2 (such as ERS 1 and EOS). Comparison of the ensuing gravity model with other contemporary fields (GRIM-4C2, TEG2B, and OSU91 A) provides a means to assess the current state of knowledge of the Earth's gravity field. Thus, the DORIS experiment on SPOT 2 has provided a strong basis for evaluating this new orbit tracking technology and has demonstrated the important contribution of the DORIS network to the success of the TOPEX/Poseidon mission. Copyright 1994 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Nerem, R S AU - Lerch, F J AU - Williamson, R G AU - Klosko, S M AU - Robbins, J W AU - Patel, G B Y1 - 1994/02// PY - 1994 DA - February 1994 SP - 2791 EP - 2813 PB - American Geophysical Union, Washington, DC VL - 99 IS - B2 SN - 0148-0227, 0148-0227 KW - Earth KW - GEM-T3 KW - DORIS KW - geophysical methods KW - geodetic coordinates KW - geodesy KW - satellite methods KW - TOPEX/Poseidon Program KW - models KW - gravity methods KW - gravity field KW - orbital observations KW - geoid KW - SPOT KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50170283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Gravity+model+improvement+using+the+DORIS+tracking+system+on+the+SPOT+2+satellite&rft.au=Nerem%2C+R+S%3BLerch%2C+F+J%3BWilliamson%2C+R+G%3BKlosko%2C+S+M%3BRobbins%2C+J+W%3BPatel%2C+G+B&rft.aulast=Nerem&rft.aufirst=R&rft.date=1994-02-01&rft.volume=99&rft.issue=B2&rft.spage=2791&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JB02567 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - DORIS; Earth; GEM-T3; geodesy; geodetic coordinates; geoid; geophysical methods; gravity field; gravity methods; models; orbital observations; remote sensing; satellite methods; SPOT; TOPEX/Poseidon Program DO - http://dx.doi.org/10.1029/93JB02567 ER - TY - JOUR T1 - Hydro-isostatic deflection and tectonic tilting in the central Andes: Initial results of a GPS survey of Lake Minchin shorelines AN - 1524417815; 19555323 AB - Sufficiently large lake loads provide a means of probing rheological stratification of the crust and upper mantle. Lake Minchin was the largest of the late Pleistocene pluvial lakes in the central Andes. Prominent shorelines, which formed during temporary still-stands in the climatically driven lake level history, preserve records of lateral variations in subsequent net vertical motions. At its maximum extent the lake was 140 m deep and spanned 400 km N-S and 200 km E-W. The load of surficial water contained in Lake Minchin was sufficient to depress the crust and underlying mantle by 20-40 m, depending on the subjacent rheology. Any other differential vertical motions will also be recorded as departures from horizontality of the shorelines. We recently conducted a survey of shoreline elevations of Lake Minchin with the express intent of monitoring the hydro-isostatic deflection and tectonic tilting. Using real-time differential GPS, we measured topographic profiles across suites of shorelines at 15 widely separated locations throughout the basin. Horizontal and vertical accuracies attained are roughly 30 and 70 cm, respectively. Geomorphic evidence suggests that the highest shoreline was occupied only briefly (probably less than 200 years) and radiocarbon dates on gastropod shells found in association with the shore deposits constrain the age to roughly 17 kyr. The basin-wide pattern of elevations of the highest shoreline is composed of two distinct signals: (27 plus or minus 1) m of hydro-isostatic deflection due to the lake load, and a planar tilt with east and north components of (6.8 plus or minus 0.4) 10 super(-5) and (-5.3 plus or minus 0.3) 10 super(-5). This rate of tilting is too high to be plausibly attributed to steady tectonism, and presumably reflects some unresolved combination of tectonism plus the effects of oceanic and lacustrine loads on a laterally heterogeneous substrate. The history of lake level fluctuations is still inadequately known to allow detailed inferences of crust and mantle rheology. However, it is already clear that the effective elastic plate thickness is closer to 40 km than the 60-70 km crustal thickness in the central Andes and the effective viscosity is less than 5 10 super(20) Pa s. JF - Geophysical Research Letters AU - Bills, Bruce G AU - de Silva, Shanaka L AU - Currey, Donald R AU - Emenger, Robert S AU - Lillquist, Karl D AU - Donnellan, Andrea AU - Worden, Bruce AD - Geodynamics Branch, NASA Goddard Space Flight Center. Y1 - 1994/02// PY - 1994 DA - Feb 1994 SP - 293 EP - 296 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 21 IS - 4 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Shores KW - South America, Andes Mts. KW - Deflection KW - Vertical motion KW - Water levels KW - Lakes KW - Geomorphology KW - History KW - Ocean-atmosphere system KW - Surveys KW - Crustal thickness KW - Rheology KW - Elevation KW - Shells KW - Monitoring KW - Tectonics KW - AQ 00001:Water Resources and Supplies KW - Q2 09148:Palaeo-studies KW - SW 5010:Network design UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1524417815?accountid=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=Geophysical+Research+Letters&rft.atitle=Hydro-isostatic+deflection+and+tectonic+tilting+in+the+central+Andes%3A+Initial+results+of+a+GPS+survey+of+Lake+Minchin+shorelines&rft.au=Bills%2C+Bruce+G%3Bde+Silva%2C+Shanaka+L%3BCurrey%2C+Donald+R%3BEmenger%2C+Robert+S%3BLillquist%2C+Karl+D%3BDonnellan%2C+Andrea%3BWorden%2C+Bruce&rft.aulast=Bills&rft.aufirst=Bruce&rft.date=1994-02-01&rft.volume=21&rft.issue=4&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL03544 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-05-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Water levels; Rheology; Geomorphology; Ocean-atmosphere system; Crustal thickness; Shells; Deflection; Vertical motion; Tectonics; Lakes; History; Elevation; Shores; Surveys; Monitoring; South America, Andes Mts. DO - http://dx.doi.org/10.1029/93GL03544 ER - TY - JOUR T1 - A spaceflight study of synaptic plasticity in adult rat vestibular maculas. AN - 85417378; pmid-7976320 AB - Behavioral signs of vestibular perturbation in altered gravity have not been well correlated with structural modifications in neurovestibular centers. This ultrastructural research investigated synaptic plasticity in hair cells of adult rat utricular maculas exposed to microgravity for nine days on a space shuttle. The hypothesis was that synaptic plasticity would be more evident in type II hair cells because they are part of a distributed modifying macular circuitry. All rats were shared with other investigators and were subjected to treatments unrelated to this experiment. Maculas were obtained from flight and control rats after shuttle return (R + 0) and nine days post-flight (R + 9). R + 9 rats had chromodacryorrhea, a sign of acute stress. Tissues were prepared for ultrastructural study by conventional methods. Ribbon synapses were counted in fifty serial sections from medial utricular macular regions of three rats of each flight and control group. Counts in fifty additional consecutive sections from one sample in each group established method reliability. All synapses were photographed and located to specific cells on mosaics of entire sections. Pooled data were analyzed statistically. Flown rats showed abnormal posture and movement at R + 0. They had statistically significant increases in total ribbon synapses and in sphere-like ribbons in both kinds of hair cells; in type II cells, pairs of synapses nearly doubled and clusters of 3 to 6 synapses increased twelve-fold. At R + 9, behavioral signs were normal. However, synapse counts remained high in both kinds of hair cells of flight maculas and were elevated in control type II cells. Only counts in type I cells showed statistically significant differences at R + 9. High synaptic counts at R + 9 may have resulted from stress due to experimental treatments. The results nevertheless demonstrate that adult maculas retain the potential for synaptic plasticity. Type II cells exhibited more synaptic plasticity, but space flight induced synaptic plasticity in type I cells. JF - Acta oto-laryngologica. Supplementum AU - Ross, M D AD - Biocomputation Center, NASA Ames Research Center, Moffett Field, CA 94035-1000. Y1 - 1994 PY - 1994 DA - 1994 SP - 1 EP - 14 VL - 516 SN - 0365-5237, 0365-5237 KW - Index Medicus; Space life sciences KW - National Library of Medicine KW - Animals KW - Presynaptic Terminals -- ultrastructure KW - Hair Cells, Vestibular -- ultrastructure KW - Cytoplasm -- ultrastructure KW - Microfilaments -- ultrastructure KW - Cell Membrane -- ultrastructure KW - Endoplasmic Reticulum -- ultrastructure KW - Rats KW - Rats, Sprague-Dawley KW - Locomotion -- physiology KW - Intercellular Junctions -- ultrastructure KW - Posture -- physiology KW - Presynaptic Terminals -- physiology KW - Hair Cells, Vestibular -- physiology KW - Synapses -- physiology KW - Acoustic Maculae -- innervation KW - Synapses -- ultrastructure KW - Space Flight KW - Acoustic Maculae -- ultrastructure KW - Neuronal Plasticity -- physiology KW - Weightlessness UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85417378?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+oto-laryngologica.+Supplementum&rft.atitle=A+spaceflight+study+of+synaptic+plasticity+in+adult+rat+vestibular+maculas.&rft.au=Ross%2C+M+D&rft.aulast=Ross&rft.aufirst=M&rft.date=1994-01-01&rft.volume=516&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Acta+oto-laryngologica.+Supplementum&rft.issn=03655237&rft_id=info:doi/ LA - English DB - ComDisDome N1 - Date revised - 2008-02-14 N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Single-track effects and new directions in GCR risk assessment. AN - 77129392; 11538039 AB - Light flashes in the eye as recorded by astronauts on missions outside the geomagnetosphere are presumably caused by single particle traversals of galactic cosmic rays traversing the retina. Although these flashes are not considered to have deleterious short- or long-term effects on vision, they are testimony that the body can detect single particle traversals. The frequencies of the flashes implicate ions in the charge range of 6 to 8 (i.e., carbon and/or oxygen ions). Other particles with higher charge and causing more ionization are present at lower frequencies. The possibility of the importance of such single-track effects in radiation carcinogenesis and other late effects suggest that a risk assessment system based on particle fluence rather than absorbed dose might be useful for assessing risk on long-term space missions. Such a system based on the concept of a risk cross section is described. Human cancer risk cross sections obtained from recently compiled A-bomb survival data are presented, and problems involving the determination of the LET-dependence of such cross sections are discussed. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Curtis, S B AD - Life Sciences Division, Lawrence Berkeley Laboratory, University of California, Berkeley 94720, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 885 EP - 894 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Ions KW - 0 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program NSCORT KW - NASA Program Radiation Health KW - Non-NASA Center KW - Stomach Neoplasms -- pathology KW - Gamma Rays KW - Humans KW - Methods KW - Breast Neoplasms -- epidemiology KW - Dose-Response Relationship, Radiation KW - Risk Assessment KW - Breast Neoplasms -- mortality KW - Breast Neoplasms -- pathology KW - Stomach Neoplasms -- mortality KW - Space Flight KW - Risk Factors KW - Incidence KW - Stomach Neoplasms -- epidemiology KW - Linear Energy Transfer KW - Female KW - Male KW - Cell Transformation, Neoplastic -- pathology KW - Neoplasms, Radiation-Induced -- pathology KW - Neoplasms, Radiation-Induced -- epidemiology KW - Neoplasms, Radiation-Induced -- mortality KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77129392?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Single-track+effects+and+new+directions+in+GCR+risk+assessment.&rft.au=Curtis%2C+S+B&rft.aulast=Curtis&rft.aufirst=S&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=885&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-02-13 N1 - Date created - 1996-02-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - GEN T1 - Space program spin-offs of environmental systems underway AN - 77127416; 11538576 AB - Several large NASA contractors are reevaluating their investments in space programs. As future NASA projects are put on hold or reduced in scope, companies are having to look to other areas in marketing their products. The companies that have invested in developing environmental systems for the space program are starting to realize they have a valuable product in non-space related projects. The environmental systems that are proving valuable were developed for space shuttle, space station and lunar/Mars stations. These are systems that handle air, waste, process water, potable water, solid waste, liquid waste and plant systems. With the development of longer space flights, environmental systems are developing which match Earth's environment. Now environmental systems developed for space are valuable on Earth. JF - Life support & biosphere science : international journal of earth space AU - Huff, W Y1 - 1994 PY - 1994 DA - 1994 SP - 14 EP - 16 VL - 1 IS - 1 KW - Space life sciences KW - United States KW - Air Pollution KW - Waste Management KW - United States National Aeronautics and Space Administration KW - Water Purification KW - Industry KW - Space Flight KW - Life Support Systems -- instrumentation KW - Technology Transfer KW - Ecological Systems, Closed UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77127416?accountid=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=unknown&rft.jtitle=Life+support+%26+biosphere+science+%3A+international+journal+of+earth+space&rft.atitle=Space+program+spin-offs+of+environmental+systems+underway&rft.au=Huff%2C+W&rft.aulast=Huff&rft.aufirst=W&rft.date=1994-01-01&rft.volume=1&rft.issue=1&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=Life+support+%26+biosphere+science+%3A+international+journal+of+earth+space&rft.issn=10699422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-07-25 N1 - Date created - 1996-07-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Teratogenic effects of gravitational changes. AN - 77125288; 11537927 AB - In investigating the effect of gravitational changes on development, it is instructive to think of altered gravity (delta g) as a teratogen--that is, an environmental factor influencing development. Observed effects on skeletal development include: suppression of morphogenesis in centrifuged mouse limb buds; advanced fusion stages in centrifuged mouse palates; smaller crown rump lengths (CRL) and decreased number of pregnancies in centrifuged rats and mice; altered differentiation of growth plates in young growing rats in space; and decreased length of calcified long bone regions in fetal rats exposed to microgravity in utero. These studies show that delta g is able to alter development in vivo and in vitro and suggest that delta g operates, at least in part, at the cellular level. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Duke, P J AU - Montufar-Solis, D AU - Daane, E AD - University of Texas-Houston, Department of Orthodontics 77225, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 281 EP - 287 VL - 14 IS - 8 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - manned KW - NASA Program Flight KW - Cosmos 1129 Project KW - NASA Discipline Developmental Biology KW - unmanned KW - Flight Experiment KW - NASA Discipline Number 00-00 KW - STS-42 Shuttle Project KW - short duration KW - Non-NASA Center KW - Cosmos 1514 Project KW - Animals KW - Growth Plate -- cytology KW - Mice KW - Growth Plate -- embryology KW - Pregnancy KW - Palate -- embryology KW - Rats KW - Centrifugation KW - Gravitation KW - Cells, Cultured KW - Space Flight KW - Weightlessness Simulation KW - Teratology KW - Palate -- cytology KW - Rotation KW - Organ Culture Techniques KW - Weightlessness KW - Female KW - Hypergravity KW - Male KW - Gravity, Altered -- adverse effects KW - Extremities -- embryology KW - Embryonic and Fetal Development -- physiology KW - Bone and Bones -- embryology KW - Bone and Bones -- cytology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77125288?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Teratogenic+effects+of+gravitational+changes.&rft.au=Duke%2C+P+J%3BMontufar-Solis%2C+D%3BDaane%2C+E&rft.aulast=Duke&rft.aufirst=P&rft.date=1994-01-01&rft.volume=14&rft.issue=8&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-02-01 N1 - Date created - 1996-02-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiosensitivity parameters for lethal mutagenesis in Caenorhabditis elegans. AN - 77113919; 11537891 AB - For the first time track structure theory has been applied to radiobiological effects in a living organism. Data for lethal mutagenesis in Caenorhabditis elegans, obtained after irradiation with nine different types of ions of atomic number 1-57 and gamma rays have yielded radiosensitivity parameters (E0, sigma 0, kappa, m = 68 Gy, 2.5 x 10(-9) cm2, 750, 2) comparable with those found for the transformation of C3HT10 1/2 cells (180 Gy, 1.15 x 10(-10) cm2, 750, 2) but remote from those (E0 and sigma 0 = approximately 2 Gy, approximately 5 x 10(-7) cm2) for mammalian cell survival. JF - Radiation protection dosimetry AU - Cucinotta, F A AU - Wilson, J W AU - Katz, R AD - NASA Langley Research Center, Hampton, VA 23681-0002. Y1 - 1994 PY - 1994 DA - 1994 SP - 25 EP - 27 VL - 52 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Ions KW - 0 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Animals KW - Cosmic Radiation KW - Radiobiology -- methods KW - Genes, Helminth KW - Mutagenesis KW - Caenorhabditis elegans -- radiation effects KW - Gamma Rays KW - Mutation KW - Models, Biological KW - Caenorhabditis elegans -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113919?accountid=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+protection+dosimetry&rft.atitle=Radiosensitivity+parameters+for+lethal+mutagenesis+in+Caenorhabditis+elegans.&rft.au=Cucinotta%2C+F+A%3BWilson%2C+J+W%3BKatz%2C+R&rft.aulast=Cucinotta&rft.aufirst=F&rft.date=1994-01-01&rft.volume=52&rft.issue=1-4&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-06 N1 - Date created - 1995-06-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Ground-based simulations of galactic cosmic ray fragmentation and transport. AN - 77113144; 11538034 AB - Since mean free paths for nuclear fragmentation are of the order of the ranges of primary Galactic Cosmic Ray (GCR) nuclei, determination of the radiation field produced by successive fragmentations of nuclei in material and tissue is essential to accurate assessment of GCR radiation risk to humans on long-duration missions outside the geomagnetosphere. We describe some recent measurements made at the Bevalac of heavy ion transport through materials, with representative results and examples of how they may be applied to aspects of the space radiation problem, including efforts to devise analytical tools for predicting biological effects and for designing spacecraft shielding. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Miller, J AD - Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 831 EP - 840 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Neon KW - 4VB4Y46AHD KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Non-NASA Center KW - Relative Biological Effectiveness KW - Synchrotrons KW - Radiometry KW - Humans KW - Materials Testing KW - Linear Energy Transfer KW - Risk Assessment KW - Models, Theoretical KW - Computer Simulation KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Radiation Protection -- statistics & numerical data KW - Radiation Protection -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113144?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Ground-based+simulations+of+galactic+cosmic+ray+fragmentation+and+transport.&rft.au=Miller%2C+J&rft.aulast=Miller&rft.aufirst=J&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=831&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Solar modulation and nuclear fragmentation effects in galactic cosmic ray transport through shielding. AN - 77113103; 11538036 AB - Crews of manned interplanetary missions may accumulate significant radiation exposures from the galactic cosmic ray (GCR) environment in space. Estimates of how these dose levels are affected by the assumed temporal and spatial variations in the composition of the GCR environment, and by the effects of the spacecraft and body self-shielding on the transported radiation fields are presented. In this work, the physical processes through which shielding alters the transported radiation fields are described. We then present estimates of the effects on model calculations of (1) nuclear fragmentation model uncertainties, (2) solar modulation, (3) variations between solar cycles, and (4) proposed changes to the quality factors which relate dose equivalent to absorbed dose. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Townsend, L W AU - Cucinotta, F A AU - Wilson, J W AU - Shinn, J L AU - Badhwar, G AD - NASA Langley Research Center, Hampton, VA 23681-0001, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 853 EP - 861 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Aluminum KW - CPD4NFA903 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Center JSC KW - NASA Program Radiation Health KW - Radiation Dosage KW - Radiometry KW - Space Flight KW - Humans KW - Elementary Particles KW - Bone Marrow -- radiation effects KW - Linear Energy Transfer KW - Risk Assessment KW - Computer Simulation KW - Spacecraft -- instrumentation KW - Radiation Protection -- statistics & numerical data KW - Solar System KW - Cosmic Radiation -- adverse effects KW - Radiation Protection -- standards KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113103?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Solar+modulation+and+nuclear+fragmentation+effects+in+galactic+cosmic+ray+transport+through+shielding.&rft.au=Townsend%2C+L+W%3BCucinotta%2C+F+A%3BWilson%2C+J+W%3BShinn%2C+J+L%3BBadhwar%2C+G&rft.aulast=Townsend&rft.aufirst=L&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=853&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A coupled soil-atmosphere model of H2O2 on Mars. AN - 77113001; 11539124 AB - The Viking Gas Chromatograph Mass Spectrometer failed to detect organic compounds on Mars, and both the Viking Labeled Release and the Viking Gas Exchange experiments indicated a reactive soil surface. These results have led to the widespread belief that there are oxidants in the martian soil. Since H2O2 is produced by photochemical processes in the atmosphere of Mars, and has been shown in the laboratory to reproduce closely the Viking LR results, it is a likely candidate for a martian soil oxidant. Here, we report on the results of a coupled soil/atmosphere transport model for H2O2 on Mars. Upon diffusing into the soil, its concentration is determined by the extent to which it is adsorbed and by the rate at which it is catalytically destroyed. An analytical model for calculating the distribution of H2O2 in the martian atmosphere and soil is developed. The concentration of H2O2 in the soil is shown to go to zero at a finite depth, a consequence of the nonlinear soil diffusion equation. The model is parameterized in terms of an unknown quantity, the lifetime of H2O2 against heterogeneous catalytic destruction in the soil. Calculated concentrations are compared with a H2O2 concentration of 30 nmoles/cm3, inferred from the Viking Labeled Release experiment. A significant result of this model is that for a wide range of H2O2 lifetimes (up to 10(5) years), the extinction depth was found to be less than 3 m. The maximum possible concentration in the top 4 cm is calculated to be approximately 240 nmoles/cm3, achieved with lifetimes of greater than 1000 years. Concentrations higher than 30 nmoles/cm3 require lifetimes of greater than 4.3 terrestrial years. For a wide range of H2O2 lifetimes, it was found that the atmospheric concentration is only weakly coupled with soil loss processes. Losses to the soil become significant only when lifetimes are less than a few hours. If there are depths below which H2O2 is not transported, it is plausible that organic compounds, protected from an oxidizing environment, may still exist. They would have been deposited by meteors, or be the organic remains of past life. JF - Icarus AU - Bullock, M A AU - Stoker, C R AU - McKay, C P AU - Zent, A P AD - Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder 80309-0392, USA. ZODIAC::BULLOCK Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 142 EP - 154 VL - 107 IS - 1 SN - 0019-1035, 0019-1035 KW - Oxidants KW - 0 KW - Soil KW - Hydrogen Peroxide KW - BBX060AN9V KW - Space life sciences KW - NASA Discipline Exobiology KW - NASA Program Exobiology KW - NASA Center ARC KW - NASA Discipline Number 52-70 KW - Photochemistry KW - Extraterrestrial Environment KW - Space Flight KW - Oxidants -- chemistry KW - Soil -- analysis KW - Models, Chemical KW - Mars KW - Hydrogen Peroxide -- analysis KW - Oxidants -- analysis KW - Atmosphere -- analysis KW - Hydrogen Peroxide -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77113001?accountid=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=Icarus&rft.atitle=A+coupled+soil-atmosphere+model+of+H2O2+on+Mars.&rft.au=Bullock%2C+M+A%3BStoker%2C+C+R%3BMcKay%2C+C+P%3BZent%2C+A+P&rft.aulast=Bullock&rft.aufirst=M&rft.date=1994-01-01&rft.volume=107&rft.issue=1&rft.spage=142&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-01-31 N1 - Date created - 1997-01-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Optical properties of poly-HCN and their astronomical applications. AN - 77112988; 11540502 AB - Matthews (1992) has proposed that HCN "polymer" is ubiquitous in the solar system. We apply vacuum deposition and spectroscopic techniques previously used on synthetic organic heteropolymers (tholins), kerogens, and meteoritic organic residues to the measurement of the optical constants of poly-HCN in the wavelength range 0.05-40 micrometers. These measurements allow quantitative comparison with spectrophotometry of organic-rich bodies in the outer solar system. In a specific test of Matthews' hypothesis, poly-HCN fails to match the optical constants of the haze of the Saturnian moon, Titan, in the visible and near-infrared derived from astronomical observations and standard models of the Titan atmosphere. In contrast, a tholin produced from a simulated Titan atmosphere matches within the probable errors. Poly-HCN is much more N-rich than Titan tholin. JF - Canadian journal of chemistry AU - Khare, B N AU - Sagan, C AU - Thompson, W R AU - Arakawa, E T AU - Meisse, C AU - Tuminello, P S AD - Laboratory for Planetary Studies, Cornell University, Ithaca, NY 14853, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 678 EP - 694 VL - 72 SN - 0008-4042, 0008-4042 KW - Polymers KW - 0 KW - Hydrogen Cyanide KW - 2WTB3V159F KW - Space life sciences KW - Spectrophotometry, Infrared KW - Saturn KW - Refractometry KW - Photolysis KW - Scattering, Radiation KW - Optics and Photonics KW - Dimerization KW - Vacuum KW - Astronomical Phenomena KW - Hydrogen Cyanide -- chemical synthesis KW - Hydrogen Cyanide -- analysis KW - Polymers -- isolation & purification KW - Polymers -- chemical synthesis KW - Hydrogen Cyanide -- chemistry KW - Hydrogen Cyanide -- isolation & purification KW - Solar System KW - Polymers -- chemistry KW - Astronomy KW - Polymers -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112988?accountid=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=Canadian+journal+of+chemistry&rft.atitle=Optical+properties+of+poly-HCN+and+their+astronomical+applications.&rft.au=Khare%2C+B+N%3BSagan%2C+C%3BThompson%2C+W+R%3BArakawa%2C+E+T%3BMeisse%2C+C%3BTuminello%2C+P+S&rft.aulast=Khare&rft.aufirst=B&rft.date=1994-01-01&rft.volume=72&rft.issue=&rft.spage=678&rft.isbn=&rft.btitle=&rft.title=Canadian+journal+of+chemistry&rft.issn=00084042&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-05-30 N1 - Date created - 1998-05-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Analysis of radiation risk from alpha particle component of solar particle events. AN - 77112227; 11538031 AB - The solar particle events (SPE) will contain a primary alpha particle component, representing a possible increase in the potential risk to astronauts during an SPE over the often studied proton component. We discuss the physical interactions of alpha particles important in describing the transport of these particles through spacecraft and body shielding. Models of light ion reactions are presented and their effects on energy and linear energy transfer (LET) spectra in shielding discussed. We present predictions of particle spectra, dose, and dose equivalent in organs of interest for SPE spectra typical of those occurring in recent solar cycles. The large events of solar cycle 19 are found to have substantial increase in biological risk from alpha particles, including a large increase in secondary neutron production from alpha particle breakup. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Cucinotta, F A AU - Townsend, L W AU - Wilson, J W AU - Golightly, M J AU - Weyland, M AD - NASA Langley Research Center, Hampton, VA 23681, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 661 EP - 670 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Helium KW - 206GF3GB41 KW - Aluminum KW - CPD4NFA903 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Neutrons KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Space Flight KW - Humans KW - Dose-Response Relationship, Radiation KW - Linear Energy Transfer KW - Risk Assessment KW - Radiation Protection -- methods KW - Computer Simulation KW - Radiation Protection -- statistics & numerical data KW - Alpha Particles -- adverse effects KW - Solar System KW - Radiation Protection -- instrumentation KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77112227?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Analysis+of+radiation+risk+from+alpha+particle+component+of+solar+particle+events.&rft.au=Cucinotta%2C+F+A%3BTownsend%2C+L+W%3BWilson%2C+J+W%3BGolightly%2C+M+J%3BWeyland%2C+M&rft.aulast=Cucinotta&rft.aufirst=F&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=661&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Approaches to resource recovery in Controlled Ecological Life Support Systems. AN - 77111976; 11538020 AB - Recovery of resources from waste streams in a space habitat is essential to minimize the resupply burden and achieve self sufficiency. The ultimate goal of a Controlled Ecological Life Support System (CELSS) is to achieve the greatest practical level of mass recycle and provide self sufficiency and safety for humans. Several mission scenarios leading to the ultimate application could employ CELSS component technologies or subsystems with initial emphasis on recycle of the largest mass components of the waste stream. Candidate physical/chemical and biological processes for resource recovery from liquid and solid waste streams are discussed and the current fundamental recovery potentials are estimated. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Bubenheim, D L AU - Wydeven, T AD - NASA-Ames Research Center, Advanced Life Support Division, Moffett Field, CA 94035, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 113 EP - 123 VL - 14 IS - 11 SN - 0273-1177, 0273-1177 KW - Waste Products KW - 0 KW - Water KW - 059QF0KO0R KW - Space life sciences KW - NASA Center ARC KW - NASA Discipline Life Support Systems KW - United States KW - Life Support Systems KW - Incineration KW - Filtration KW - United States National Aeronautics and Space Administration KW - Humans KW - Crops, Agricultural KW - Research KW - Technology Transfer KW - Spacecraft KW - Biomass KW - Waste Management -- methods KW - Water Purification -- methods KW - Ecological Systems, Closed UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111976?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Approaches+to+resource+recovery+in+Controlled+Ecological+Life+Support+Systems.&rft.au=Bubenheim%2C+D+L%3BWydeven%2C+T&rft.aulast=Bubenheim&rft.aufirst=D&rft.date=1994-01-01&rft.volume=14&rft.issue=11&rft.spage=113&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-04-28 N1 - Date created - 1998-04-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - NUCFRG2: a semiempirical nuclear fragmentation model. AN - 77111965; 11541190 AB - The semiempirical abrasion/ablation model has been successful in generating a large nuclear data base for use in the study of high charge and energy (HZE) ion beams, radiation physics and galactic cosmic ray shielding. The cross sections generated agree with the measured HZE fragmentation data to the degree that different experimental groups agree among themselves. Several improvements in the model have been made including a Coulomb trajectory correction, an improved treatment of nuclear attenuation factors, an improved second order correction to the spectator fragment excitation spectrum, a pre-equilibrium emission process, and competitive equilibrium emission of additional hydrogen and helium isotope fragments. JF - Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms AU - Wilson, J W AU - Shinn, J L AU - Townsend, L W AU - Tripathi, R K AU - Badavi, F F AU - Chun, S Y AD - NASA Langley Research Center, Hampton, VA 23681-0001, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 95 EP - 102 VL - 94 SN - 0168-583X, 0168-583X KW - Ions KW - 0 KW - Lead KW - 2P299V784P KW - Carbon KW - 7440-44-0 KW - Copper KW - 789U1901C5 KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Radiation Health KW - Radiation Protection KW - Energy Transfer KW - Elementary Particle Interactions KW - Mathematics KW - Cosmic Radiation KW - Nuclear Physics KW - Elementary Particles KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111965?accountid=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=Nuclear+instruments+%26+methods+in+physics+research.+Section+B%2C+Beam+interactions+with+materials+and+atoms&rft.atitle=NUCFRG2%3A+a+semiempirical+nuclear+fragmentation+model.&rft.au=Wilson%2C+J+W%3BShinn%2C+J+L%3BTownsend%2C+L+W%3BTripathi%2C+R+K%3BBadavi%2C+F+F%3BChun%2C+S+Y&rft.aulast=Wilson&rft.aufirst=J&rft.date=1994-01-01&rft.volume=94&rft.issue=&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Nuclear+instruments+%26+methods+in+physics+research.+Section+B%2C+Beam+interactions+with+materials+and+atoms&rft.issn=0168583X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-11-29 N1 - Date created - 1998-11-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - HZE beam transport in multilayered materials. AN - 77111933; 11538017 AB - A nonperturbative analytic solution of the high charge and energy (HZE) Green's function is used to implement a computer code for laboratory ion beam transport in multiple-layered materials. The code is established to operate on the Langley nuclear fragmentation model used in space engineering applications. Computational procedures are established to generate linear energy transfer (LET) distributions for a specified ion beam and target for comparison with experimental measurement. Comparison with 56Fe ion with Pb-Al and Pb-(CH2)x targets shows reasonable agreement. JF - Radiation measurements AU - Shinn, J L AU - Wilson, J W AU - Badavi, F F AU - Benton, E V AU - Csige, I AU - Frank, A L AU - Benton, E R AD - NASA Langley Research Center, Hampton, VA 23681. Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 57 EP - 64 VL - 23 IS - 1 SN - 1350-4487, 1350-4487 KW - Ions KW - 0 KW - Polyethylenes KW - Protons KW - Lead KW - 2P299V784P KW - Aluminum KW - CPD4NFA903 KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Non-NASA Center KW - Scattering, Radiation KW - Radiometry KW - Radiation Protection -- statistics & numerical data KW - Radiation Protection -- instrumentation KW - Models, Theoretical KW - Mathematics KW - Cosmic Radiation KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111933?accountid=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+measurements&rft.atitle=HZE+beam+transport+in+multilayered+materials.&rft.au=Shinn%2C+J+L%3BWilson%2C+J+W%3BBadavi%2C+F+F%3BBenton%2C+E+V%3BCsige%2C+I%3BFrank%2C+A+L%3BBenton%2C+E+R&rft.aulast=Shinn&rft.aufirst=J&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-21 N1 - Date created - 1995-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Isotopic biogeochemistry of the Oxford Clay Formation (Jurassic), UK. AN - 77111799; 11539496 AB - A total of 165 samples was obtained from the Oxford Clay Formation at seven different sites. Nearly all were from the Peterborough Member (Lower Oxford Clay), but seven were from the Stewartby and Weymouth Members (Middle and Upper Oxford Clay respectively). Five samples from the underlying Kellaways Formation were also examined. Stratigraphic relationships were estimated on the basis of ammonite subzones and results from all locations can be placed along a single stratigraphic scale. The following were determined for all samples: abundance and isotopic composition of organic carbon, abundances of carbonate carbon and total sulphur, and the Rock-Eval pyrolysis parameters hydrogen index, oxygen index and Tmax. For a subset of eight samples selected to be representative of geochemical and apparent palaeoenvironmental variations, soluble organic compounds were extracted and the isotopic composition of pristane, phytane, and long-chain n-alkanes determined by isotope-ratio-monitoring gas chromatograph mass spectrometry. Concentrations of organic carbon in samples from the Peterborough Member ranged from 0.5 to 16.6 % and delta values of total organic carbon (TOC) ranged from -27.7 to -23.1% v. PDB. Shales dominated by epifaunal bivalve assemblages have high concentrations of TOC and values of H index approaching 800, indicating preservation of hydrogen-rich organic material. Conversely, shell beds and calcareous and silty clay beds have lower abundances of TOC and values of H index dropping below 100, indicating extensive oxidation of the organic matter. Isotopic composition of pristane and phytane in the Peterborough and Stewartby Members average -31.7%, those in the Weymouth Member average -29.8. Values of delta for long-chain n-alkanes average -28%. Together these results indicate delta values for primary inputs as follows: terrestrial vascular plants, -23.5%; Peterborough Member algae, -28.2; Stewartby Member algae, -29.1%; Weymouth Member algae, -26.6% Comparison of primary delta values to those of TOC indicates that in some cases secondary processes enriched TOC relative to primary inputs by as much as 4%. Paleontological evidence in these same beds indicates development of extensive food-webs and supports attribution of this isotopic enrichment to heterotrophic reworking. JF - Journal of the Geological Society AU - Kenig, F AU - Hayes, J M AU - Popp, B N AU - Summons, R E AD - Biogeochemical Laboratories, Indiana University, Bloomington 47405, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 139 EP - 152 VL - 151 SN - 0016-7649, 0016-7649 KW - Alkanes KW - 0 KW - Aluminum Silicates KW - Carbon Isotopes KW - Diterpenes KW - Terpenes KW - clay KW - 1302-87-0 KW - pristane KW - 26HZV48DT1 KW - phytane KW - 638-36-8 KW - Carbon KW - 7440-44-0 KW - Hydrogen KW - 7YNJ3PO35Z KW - Oxygen KW - S88TT14065 KW - Space life sciences KW - Animals KW - Diterpenes -- analysis KW - Terpenes -- analysis KW - Biomass KW - Eukaryota KW - United Kingdom KW - Diterpenes -- chemistry KW - Oceans and Seas KW - Terpenes -- chemistry KW - Fossils KW - Hydrogen -- chemistry KW - Plants KW - Oxygen -- chemistry KW - Paleontology KW - Alkanes -- analysis KW - Mollusca KW - Geologic Sediments -- chemistry KW - Aluminum Silicates -- chemistry KW - Geologic Sediments -- analysis KW - Aluminum Silicates -- analysis KW - Carbon -- analysis KW - Carbon -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111799?accountid=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+the+Geological+Society&rft.atitle=Isotopic+biogeochemistry+of+the+Oxford+Clay+Formation+%28Jurassic%29%2C+UK.&rft.au=Kenig%2C+F%3BHayes%2C+J+M%3BPopp%2C+B+N%3BSummons%2C+R+E&rft.aulast=Kenig&rft.aufirst=F&rft.date=1994-01-01&rft.volume=151&rft.issue=&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Geological+Society&rft.issn=00167649&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-09 N1 - Date created - 1997-08-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Oncogenic transformation through the cell cycle and the LET dependent inverse dose rate effect. AN - 77111744; 11537892 AB - Synchronised populations of mouse C3H/10T-1/2 cells were obtained by a stringent mitotic dislodgment procedure. Mitotic cells rapidly attach and progress sequentially through the cell cycle. Irradiation (3 Gy of X rays) was carried out at intervals from 0 to 18 h after initiating cell cycle progression of the mitotic cells. Oncogenic transformation was enhanced 10-fold over cells irradiated soon after replating (G1 and S phases) for cells in a near 2 h period corresponding to cells in G2 phase but not in mitosis. The cell surviving fraction had a 2-1/2-fold variation with resistant peaks corresponding to the late G1 and late S phases. These findings provide experimental support for the hypothesis initiated by Rossi and Kellerer and developed by Brenner and Hall to explain the LET dependent inverse dose rate effect for oncogenic transformation. JF - Radiation protection dosimetry AU - Geard, C R AU - Miller, R C AU - Brenner, D J AU - Hall, E J AD - Center for Radiological Research, Columbia University, New York 10032, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 367 EP - 371 VL - 52 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Space life sciences KW - NASA Discipline Radiation Health KW - Non-NASA Center KW - Animals KW - Mice KW - Dose-Response Relationship, Radiation KW - Cell Line, Transformed KW - Cell Cycle -- radiation effects KW - Fibroblasts KW - Cell Survival KW - Mitosis -- radiation effects KW - Linear Energy Transfer KW - Cell Transformation, Neoplastic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111744?accountid=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+protection+dosimetry&rft.atitle=Oncogenic+transformation+through+the+cell+cycle+and+the+LET+dependent+inverse+dose+rate+effect.&rft.au=Geard%2C+C+R%3BMiller%2C+R+C%3BBrenner%2C+D+J%3BHall%2C+E+J&rft.aulast=Geard&rft.aufirst=C&rft.date=1994-01-01&rft.volume=52&rft.issue=1-4&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-22 N1 - Date created - 1998-09-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Acute, 2-week, and 13-week inhalation toxicity studies on dimethylethoxysilane vapor in Fischer 344 rats. AN - 77111546; 11537968 AB - Dimethylethoxysilane (DMES), a volatile liquid, is used by NASA to waterproof the heat-protective silica tiles and blankets on the Space Shuttle. Acute, 2-wk, and 13-wk inhalation exposures to DMES vapor were conducted in male and female Fischer 344 rats. In the acute study, rats were exposed to 4000, 2000, 1000, 500, or 0 (control) ppm DMES for 4 h and observed for 14 days. There were no deaths. Narcosis and ataxia were observed in rats of the two highest concentrations only. These signs disappeared within 1 h following exposure. There were no DMES-related gross or microscopic tissue lesions in rats of all exposure groups. In the 2-wk study, rats were exposed for 6 h/day, 5 days/wk to 3000, 1000, 300, 100, or 0 ppm DMES. During exposure, narcosis was observed in rats of the 3000 and 1000 ppm groups. There was a mild decrease in body weight gain in rats of the 3000 ppm group. A decrease in platelet count, an increase in bile acids, and reduced weights of the thymus, testis, and liver were observed in rats of the 3000 ppm group. Microscopically, hypospermatogenesis and spermatid giant cells were observed in the seminiferous tubules of the testes of rats exposed to 3000 ppm DMES. In the 13-wk study, rats were exposed 6 h/day, 5 days/wk to 2000, 600, 160, 40, or 0 ppm DMES. During exposure, rats of the 2000 ppm group exhibited mild narcosis and loss of startle reflex. Recovery from these central nervous system signs was rapid. Body weights were mildly decreased for rats of the 2000 ppm group. There were no exposure-related effects in hematology, serum chemistry, or urinalysis. Female rats of the 2000 ppm group had delayed estrous cycles (6 days compared to 5 days in control rats). Noteworthy organ weight changes in rats of the 2000 ppm group included decreases in thymus, liver, and testicular weights; however, pathologic lesions were observed in the testes only. Sperm motility, epididymal sperm count, and testicular spermatid count were dramatically reduced. Microscopic lesions included degeneration of the seminiferous tubular cells, pyknosis or absence of germ cells, and hypospermia in the epididymis. Rats of the 600 ppm group had a slight decrease in thymic weight and a transient decrease in body weight. Results of the acute, 2-wk, and 13-wk inhalation studies indicate DMES concentrations of 1000 ppm and higher produce narcosis that rapidly disappears following exposure. Repeated exposure of rats to DMES at either 3000 ppm for 2 wk or 2000 ppm for 13 wk caused testicular atrophy and hypospermia in male rats. Female rats exposed to 2000 ppm for 13 wk had delayed estrous cycles. Toxicological effects in rats of the 600 ppm group were minimal and equivocal. The 160 ppm concentration was a no-observable-effect level (NOEL) for 13 wk of exposure to DMES. JF - Inhalation toxicology AU - Dodd, D E AU - Stuart, B O AU - Rothenberg, S J AU - Kershaw, M AU - Mann, P C AU - James, J T AU - Lam, C W AD - ManTech Environmental Technology, Inc., Dayton, Ohio. Y1 - 1994 PY - 1994 DA - 1994 SP - 151 EP - 166 VL - 6 SN - 0895-8378, 0895-8378 KW - Bile Acids and Salts KW - 0 KW - Silanes KW - Space life sciences KW - NASA Discipline Number 04-10 KW - NASA Center JSC KW - NASA Discipline Environmental Health KW - Spermatogenesis -- physiology KW - Animals KW - Liver -- anatomy & histology KW - Sperm Count -- drug effects KW - Blood Chemical Analysis KW - Spacecraft -- instrumentation KW - Dose-Response Relationship, Drug KW - Platelet Count -- drug effects KW - Spermatogenesis -- drug effects KW - Sperm Motility -- drug effects KW - Bile Acids and Salts -- metabolism KW - Thymus Gland -- drug effects KW - Sperm Motility -- physiology KW - Rats KW - Rats, Inbred F344 KW - Thymus Gland -- anatomy & histology KW - Liver -- drug effects KW - Body Weight -- drug effects KW - Urinalysis KW - Administration, Inhalation KW - Female KW - Male KW - Organ Size -- drug effects KW - Estrus -- physiology KW - Testis -- drug effects KW - Silanes -- toxicity KW - Testis -- pathology KW - Silanes -- administration & dosage KW - Estrus -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111546?accountid=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=Inhalation+toxicology&rft.atitle=Acute%2C+2-week%2C+and+13-week+inhalation+toxicity+studies+on+dimethylethoxysilane+vapor+in+Fischer+344+rats.&rft.au=Dodd%2C+D+E%3BStuart%2C+B+O%3BRothenberg%2C+S+J%3BKershaw%2C+M%3BMann%2C+P+C%3BJames%2C+J+T%3BLam%2C+C+W&rft.aulast=Dodd&rft.aufirst=D&rft.date=1994-01-01&rft.volume=6&rft.issue=&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Inhalation+toxicology&rft.issn=08958378&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-07-07 N1 - Date created - 1995-07-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Neuritogenesis: a model for space radiation effects on the central nervous system. AN - 77111447; 11538028 AB - Pivotal to the astronauts' functional integrity and survival during long space flights are the strategies to deal with space radiations. The majority of the cellular studies in this area emphasize simple endpoints such as growth related events which, although useful to understand the nature of primary cell injury, have poor predictive value for extrapolation to more complex tissues such as the central nervous system (CNS). In order to assess the radiation damage on neural cell populations, we developed an in vitro model in which neuronal differentiation, neurite extension, and synaptogenesis occur under controlled conditions. The model exploits chick embryo neural explants to study the effects of radiations on neuritogenesis. In addition, neurobiological problems associated with long-term space flights are discussed. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Vazquez, M E AU - Broglio, T M AU - Worgul, B V AU - Benton, E V AD - Department of Ophthalmology, Columbia University, New York 10032, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 467 EP - 474 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Non-NASA Center KW - Radiation Dosage KW - Animals KW - Retina -- embryology KW - Culture Techniques KW - DNA Damage KW - Space Flight KW - Chick Embryo KW - Radiobiology -- methods KW - Cytoskeleton -- radiation effects KW - Linear Energy Transfer KW - Retina -- radiation effects KW - Neuronal Plasticity -- radiation effects KW - Central Nervous System -- embryology KW - Central Nervous System -- physiology KW - Central Nervous System -- radiation effects KW - Neurons -- radiation effects KW - Neurons -- physiology KW - Neurites -- radiation effects KW - Neurites -- physiology KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111447?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Neuritogenesis%3A+a+model+for+space+radiation+effects+on+the+central+nervous+system.&rft.au=Vazquez%2C+M+E%3BBroglio%2C+T+M%3BWorgul%2C+B+V%3BBenton%2C+E+V&rft.aulast=Vazquez&rft.aufirst=M&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=467&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-08-08 N1 - Date created - 1995-08-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The organic surface of 5145 Pholus: constraints set by scattering theory. AN - 77111313; 11539180 AB - No known body in the Solar System has a spectrum redder than that of object 5145 Pholus. We use Hapke scattering theory and optical constants measured in this laboratory to examine the ability of mixtures of a number of organic solids and ices to reproduce the observed spectrum and phase variation. The primary materials considered are poly-HCN, kerogen, Murchison organic extract, Titan tholin, ice tholin, and water ice. In a computer grid search of over 10 million models, we find an intraparticle mixture of 15% Titan tholin, 10% poly-HCN, and 75% water ice with 10-micrometers particles to provide an excellent fit. Replacing water ice with ammonia ice improves the fits significantly while using a pure hydrocarbon tholin, Tholin alpha, instead of Titan tholin makes only modest improvements. All acceptable fits require Titan tholin or some comparable material to provide the steep slope in the visible, and poly-HCN or some comparable material to provide strong absorption in the near-infrared. A pure Titan tholin surface with 16-micrometers particles, as well as all acceptable Pholus models, fit the present spectrophotometric data for the transplutonian object 1992 QB1. The feasibility of gas-phase chemistry to generate material like Titan tholin on such small objects is examined. An irradiated transient atmosphere arising from sublimating ices may generate at most a few centimeters of tholin over the lifetime of the Solar System, but this is insignificant compared to the expected lag deposit of primordial contaminants left behind by the sublimating ice. Irradiation of subsurface N2/CH4 or NH3/CH4 ice by cosmic rays may generate approximately 20 cm of tholin in the upper 10 m of regolith in the same time scale but the identity of this tholin to its gas-phase equivalent has not been demonstrated. JF - Icarus AU - Wilson, P D AU - Sagan, C AU - Thompson, W R AD - Laboratory for Planetary Studies, Cornell University, Ithaca, New York 14853, USA. wilson@astrosun.tn.cornell.edu Y1 - 1994 PY - 1994 DA - 1994 SP - 288 EP - 303 VL - 107 SN - 0019-1035, 0019-1035 KW - Hydrocarbons KW - 0 KW - Ice KW - Polymers KW - Water KW - 059QF0KO0R KW - Hydrogen Cyanide KW - 2WTB3V159F KW - Ammonia KW - 7664-41-7 KW - Nitrogen KW - N762921K75 KW - Methane KW - OP0UW79H66 KW - Space life sciences KW - NASA Discipline Exobiology KW - Non-NASA Center KW - Spectrophotometry, Infrared KW - Nitrogen -- chemistry KW - Hydrocarbons -- chemistry KW - Scattering, Radiation KW - Hydrogen Cyanide -- chemistry KW - Water -- chemistry KW - Ammonia -- chemistry KW - Astronomical Phenomena KW - Polymers -- chemistry KW - Astronomy KW - Minor Planets KW - Models, Theoretical KW - Methane -- chemistry KW - Extraterrestrial Environment KW - Solar System KW - Atmosphere UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111313?accountid=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=Icarus&rft.atitle=The+organic+surface+of+5145+Pholus%3A+constraints+set+by+scattering+theory.&rft.au=Wilson%2C+P+D%3BSagan%2C+C%3BThompson%2C+W+R&rft.aulast=Wilson&rft.aufirst=P&rft.date=1994-01-01&rft.volume=107&rft.issue=&rft.spage=288&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-02 N1 - Date created - 1997-08-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Estimates of HZE particle contributions to SPE radiation exposures on interplanetary missions. AN - 77111080; 11538032 AB - Estimates of radiation doses resulting from possible HZE (high energy heavy ion) components of solar particle events (SPEs) are presented for crews of manned interplanetary missions. The calculations assume a model spectrum obtained by folding measured solar flare HZE particle abundances with the measured energy spectra of SPE alpha particles. These hypothetical spectra are then transported through aluminum spacecraft shielding. The results, presented as estimates of absorbed dose and dose equivalent, indicate that HZE components by themselves are not a major concern for crew protection but should be included in any overall risk assessment. The predictions are found to be sensitive to the assumed spectral hardness parameters. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Townsend, L W AU - Cucinotta, F A AU - Wilson, J W AU - Bagga, R AD - NASA Langley Research Center, Hampton, VA 23681-0001, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 671 EP - 674 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Ions KW - 0 KW - Aluminum KW - CPD4NFA903 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Radiation Dosage KW - Computer Simulation KW - Skin KW - Humans KW - Lens, Crystalline KW - Radiation Protection -- standards KW - Risk Assessment KW - Bone Marrow KW - Space Flight KW - Radiation Protection -- statistics & numerical data KW - Models, Theoretical KW - Cosmic Radiation KW - Extraterrestrial Environment KW - Alpha Particles KW - Solar System KW - Elementary Particles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111080?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Estimates+of+HZE+particle+contributions+to+SPE+radiation+exposures+on+interplanetary+missions.&rft.au=Townsend%2C+L+W%3BCucinotta%2C+F+A%3BWilson%2C+J+W%3BBagga%2C+R&rft.aulast=Townsend&rft.aufirst=L&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=671&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Galactic cosmic ray radiation levels in spacecraft on interplanetary missions. AN - 77111018; 11538037 AB - Using the Langley Research Center galactic cosmic ray (GCR) transport computer code (HZETRN) and the computerized anatomical man (CAM) model, crew radiation levels inside manned spacecraft on interplanetary missions are estimated. These radiation-level estimates include particle fluxes, LET (linear energy transfer) spectra, absorbed dose, and dose equivalent within various organs of interest in GCR protection studies. Changes in these radiation levels resulting from the use of various different types of shield materials are presented. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Shinn, J L AU - Nealy, J E AU - Townsend, L W AU - Wilson, J W AU - Wood, J S AD - National Aeronautics and Space Administration, Langley Research Center, Hampton, VA 23681, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 863 EP - 871 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Radiation Dosage KW - Computer Simulation KW - Radiometry KW - Space Flight KW - Humans KW - Lens, Crystalline -- radiation effects KW - Bone Marrow -- radiation effects KW - Models, Biological KW - Linear Energy Transfer KW - Thyroid Gland -- radiation effects KW - Models, Theoretical KW - Radiation Protection -- methods KW - Spacecraft -- instrumentation KW - Radiation Protection -- statistics & numerical data KW - Solar System KW - Radiation Protection -- instrumentation KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77111018?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Galactic+cosmic+ray+radiation+levels+in+spacecraft+on+interplanetary+missions.&rft.au=Shinn%2C+J+L%3BNealy%2C+J+E%3BTownsend%2C+L+W%3BWilson%2C+J+W%3BWood%2C+J+S&rft.aulast=Shinn&rft.aufirst=J&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=863&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Non-subjective cataract analysis and its application in space radiation risk assessment. AN - 77110856; 11538030 AB - Experimental animal studies and human observations suggest that the question is not whether or not prolonged space missions will cause cataracts to appear prematurely in the astronauts, but when and to what degree. Historically the major impediment to radiation cataract follow-up has been the necessarily subjective nature of assessing the degree of lens transparency. This has spurred the development of instruments which produce video images amenable to digital analysis. One such system, the Zeiss Scheimpflug slit lamp measuring system (SLC), was incorporated into our ongoing studies of radiation cataractogenesis. It was found that the Zeiss SLC measuring system has high resolution and permits the acquisition of reproducible images of the anterior segment of the eye. Our results, based on about 650 images of the rats lens, and followed over a period of 91 weeks of radiation cataract development, showed that the integrated optical density (IOD) of the lens correlated well with conventional assessment with the added advantages of objectivity, permanent and transportable records and linearity as cataracts become more severe. This continuous data acquisition, commencing with cataract onset, can proceed through more advanced stages. The SLC exhibits much greater sensitivity reflected in a continuously progressive severity despite the artifactual plateaus in staging which occur using conventional scoring methods. Systems such as the Zeiss SLC should be used to monitor astronauts frequent visits to low earth orbit to obtain a longitudinal data-base on the influence of this activity on the lens. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Wu, B AU - Medvedovsky, C AU - Worgul, B V AD - Columbia University, Department of Ophthalmology, New York 10032, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 493 EP - 500 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Ions KW - 0 KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Discipline Number 04-10 KW - NASA Program Radiation Health KW - Non-NASA Center KW - Rats KW - Animals KW - Rats, Sprague-Dawley KW - Microscopy -- methods KW - Photography -- methods KW - Space Flight KW - Iron -- adverse effects KW - Incidence KW - Image Processing, Computer-Assisted KW - Risk Assessment KW - Cataract -- epidemiology KW - Cataract -- diagnosis KW - Lens, Crystalline -- radiation effects KW - Cataract -- etiology KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110856?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Non-subjective+cataract+analysis+and+its+application+in+space+radiation+risk+assessment.&rft.au=Wu%2C+B%3BMedvedovsky%2C+C%3BWorgul%2C+B+V&rft.aulast=Wu&rft.aufirst=B&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=493&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A modular solid state detector for measuring high energy heavy ion fragmentation near the beam axis. AN - 77110618; 11539880 AB - A multi-element solid state detector has been designed to measure fluences of fragments produced near the beam axis by high energy heavy ion beams in thick targets. The detector is compact and modular, so as to be readily reconfigured according to the range of fragment charges and energies to be measured. Preamplifier gain settings and detector calibrations are adjustable remotely under computer control. We describe the central detector, its associated detectors and electronics, triggering scheme, data acquisition and particle identification techniques, illustrated by data taken with 600 MeV/u 56Fe beams and thick polyethylene targets at the LBL Bevalac. The applications of this work to space radiation protection are discussed. JF - Radiation measurements AU - Zeitlin, C J AU - Frankel, K A AU - Gong, W AU - Heilbronn, L AU - Lampo, E J AU - Leres, R AU - Miller, J AU - Schimmerling, W AD - Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 65 EP - 81 VL - 23 IS - 1 SN - 1350-4487, 1350-4487 KW - Ions KW - 0 KW - Polyethylenes KW - Iron KW - E1UOL152H7 KW - Silicon KW - Z4152N8IUI KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Center HQS KW - Non-NASA Center KW - Evaluation Studies as Topic KW - Equipment Design KW - Radiometry KW - Elementary Particle Interactions KW - Computers KW - Particle Accelerators KW - Algorithms KW - Calibration KW - Automatic Data Processing KW - Software KW - Cosmic Radiation KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110618?accountid=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+measurements&rft.atitle=A+modular+solid+state+detector+for+measuring+high+energy+heavy+ion+fragmentation+near+the+beam+axis.&rft.au=Zeitlin%2C+C+J%3BFrankel%2C+K+A%3BGong%2C+W%3BHeilbronn%2C+L%3BLampo%2C+E+J%3BLeres%2C+R%3BMiller%2C+J%3BSchimmerling%2C+W&rft.aulast=Zeitlin&rft.aufirst=C&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-10-18 N1 - Date created - 1997-10-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mutation induction in human lymphoid cells by energetic heavy ions. AN - 77110484; 11538026 AB - One of the concerns for extended space flight outside the magnetosphere is exposure to galactic cosmic radiation. In the series of studies presented herein, the mutagenic effectiveness of high energy heavy ions is examined using human B-lymphoblastoid cells across an LET range from 32keV/micrometer to 190 keV/micrometer. Mutations were scored for an autosomal locus, thymidine kinase (tk), and for an X-linked locus, hypoxanthine phosphoribosyltransferase (hprt). For each of the radiations studied, the autosomal locus is more sensitive to mutation induction than is the X-linked locus. When mutational yields are expressed in terms of particle fluence, the two loci respond quite differently across the range of LET. The action cross section for mutation induction peaks at 61 keV/micrometer for the tk locus and then declines for particles of higher LET, including Fe ions. For the hprt locus, the action cross section for mutation is maximal at 95 keV/micrometer but is relatively constant across the range from 61 keV/micrometer to 190 keV/micrometer. The yields of hprt-deficient mutants obtained after HZE exposure to TK6 lymphoblasts may be compared directly with published data on the induction of hprt-deficient mutants in human neonatal fibroblasts exposed to similar ions. The action cross section for induction of hprt-deficient mutants by energetic Fe ions is more than 10-fold lower for lymphoblastoid cells than for fibroblasts. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Kronenberg, A AD - Life Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 339 EP - 346 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Ions KW - 0 KW - Iron KW - E1UOL152H7 KW - Hypoxanthine Phosphoribosyltransferase KW - EC 2.4.2.8 KW - Thymidine Kinase KW - EC 2.7.1.21 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Non-NASA Center KW - Relative Biological Effectiveness KW - Hypoxanthine Phosphoribosyltransferase -- genetics KW - Humans KW - Dose-Response Relationship, Radiation KW - Radiation Genetics KW - Linear Energy Transfer KW - Cell Line KW - Thymidine Kinase -- genetics KW - Mutagenesis KW - Lymphocytes -- radiation effects KW - Lymphocytes -- enzymology KW - Lymphocytes -- cytology KW - Mutation KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110484?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Mutation+induction+in+human+lymphoid+cells+by+energetic+heavy+ions.&rft.au=Kronenberg%2C+A&rft.aulast=Kronenberg&rft.aufirst=A&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Development of human epithelial cell systems for radiation risk assessment. AN - 77110448; 11538024 AB - The most important health effect of space radiation for astronauts is cancer induction. For radiation risk assessment, an understanding of carcinogenic effect of heavy ions in human cells is most essential. In our laboratory, we have successfully developed a human mammary epithelial cell system for studying the neoplastic transformation in vitro. Growth variants were obtained from heavy ion irradiated immortal mammary cell line. These cloned growth variants can grow in regular tissue culture media and maintain anchorage dependent growth and density inhibition property. Upon further irradiation with high-LET radiation, transformed foci were found. Experimental results from these studies suggest that multiexposure of radiation is required to induce neoplastic transformation of human epithelial cells. This multihits requirement may be due to high genomic stability of human cells. These growth variants can be useful model systems for space flight experiments to determine the carcinogenic effect of space radiation in human epithelial cells. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Yang, C H AU - Craise, L M AD - NASA Johnson Space Center, Houston, TX 77058, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 115 EP - 120 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Argon KW - 67XQY1V3KH KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Center JSC KW - NASA Program Radiation Health KW - Humans KW - Neoplasms, Radiation-Induced -- epidemiology KW - Radiobiology -- methods KW - Risk Assessment KW - Astronauts KW - Epithelial Cells KW - Cells, Cultured KW - Space Flight KW - Solar System KW - Epithelium -- radiation effects KW - Linear Energy Transfer KW - Cell Line KW - Female KW - Breast -- radiation effects KW - Cell Transformation, Neoplastic -- radiation effects KW - Breast -- cytology KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110448?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Development+of+human+epithelial+cell+systems+for+radiation+risk+assessment.&rft.au=Yang%2C+C+H%3BCraise%2C+L+M&rft.aulast=Yang&rft.aufirst=C&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The influence of dose, dose-rate and particle fragmentation on cataract induction by energetic iron ions. AN - 77110132; 11538029 AB - Because activities in space necessarily involve chronic exposure to a heterogeneous charged particle radiation field it is important to assess the influence of dose-rate and the possible modulating role of heavy particle fragmentation on biological systems. Using the well-studied cataract model, mice were exposed to plateau 600 MeV/amu 56Fe ions either as acute or fractionated exposures at total doses of 5 - 504 cGy. Additional groups of mice received 20, 360 and 504 cGy behind 50 mm of polyethylene, which simulates body shielding. The reference radiation consisted of 60Co gamma radiation. The animals were examined by slit lamp biomicroscopy over their three year life spans. In accordance with our previous observations with heavy particles, the cataractogenic potential of the 600 MeV/amu 56Fe ions was greater than for low-LET radiation and increased with decreasing dose relative to gamma-rays. Fractionation of a given dose of 56Fe ions did not reduce the cataractogenicity of the radiation compared to the acute regimen. Fragmentation of the beam in the polyethylene did not alter the cataractotoxicity of the ions, either when administered singly or in fractions. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Medvedovsky, C AU - Worgul, B V AU - Huang, Y AU - Brenner, D J AU - Tao, F AU - Miller, J AU - Zeitlin, C AU - Ainsworth, E J AD - The Eye Radiation and Environmental Research Laboratory, Columbia University, New York, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 475 EP - 482 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Cobalt Radioisotopes KW - 0 KW - Ions KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Non-NASA Center KW - Animals KW - Radiation Dosage KW - Radiation Protection KW - Gamma Rays KW - Iron -- adverse effects KW - Mice KW - Dose-Response Relationship, Radiation KW - Risk Assessment KW - Radiation Injuries, Experimental -- etiology KW - Radiation Injuries, Experimental -- physiopathology KW - Time Factors KW - Linear Energy Transfer KW - Male KW - Cataract -- physiopathology KW - Lens, Crystalline -- radiation effects KW - Cataract -- etiology KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77110132?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=The+influence+of+dose%2C+dose-rate+and+particle+fragmentation+on+cataract+induction+by+energetic+iron+ions.&rft.au=Medvedovsky%2C+C%3BWorgul%2C+B+V%3BHuang%2C+Y%3BBrenner%2C+D+J%3BTao%2C+F%3BMiller%2C+J%3BZeitlin%2C+C%3BAinsworth%2C+E+J&rft.aulast=Medvedovsky&rft.aufirst=C&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=475&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-08-10 N1 - Date created - 1995-08-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Importance of dose-rate and cell proliferation in the evaluation of biological experimental results. AN - 77109181; 11538040 AB - The nuclei of cells within the bodies of astronauts traveling on extended missions outside the geomagnetosphere will experience single traversals of particles with high LET (e.g., one iron ion per one hundred years, on average) superimposed on a background of tracks with low LET (approximately one proton every two to three days, and one helium ion per month). In addition, some cell populations within the body will be proliferating, thus possibly providing increasing numbers of cells with "initiated" targets for subsequent radiation hits. These temporal characteristics are not generally reproduced in laboratory experimental protocols. Implications of the differences in the temporal patterns of radiation delivery between conventionally designed radiation biology experiments and the pattern to be experienced in space are examined and the importance of dose-rate and cell proliferation are pointed out in the context of radiation risk assessment on long missions in space. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Curtis, S B AD - Lawrence Berkeley Laboratory, University of California, Berkeley 94720, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 989 EP - 996 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program NSCORT KW - NASA Program Radiation Health KW - Non-NASA Center KW - Cell Count KW - Space Flight KW - Methods KW - Humans KW - Particle Accelerators KW - Dose-Response Relationship, Radiation KW - Time Factors KW - Linear Energy Transfer KW - Risk Assessment KW - Cell Division -- radiation effects KW - Cosmic Radiation -- adverse effects KW - Cell Nucleus -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109181?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Importance+of+dose-rate+and+cell+proliferation+in+the+evaluation+of+biological+experimental+results.&rft.au=Curtis%2C+S+B&rft.aulast=Curtis&rft.aufirst=S&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=989&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-10-06 N1 - Date created - 1995-10-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Head and neck tumors after energetic proton irradiation in rats. AN - 77109129; 11538033 AB - This is a two-year progress report on a life span dose-response study of brain tumor risk at moderate to high doses of energetic protons. It was initiated because a joint NASA/USAF life span study of rhesus monkeys that were irradiated with 55-MeV protons (average surface dose, 3.5 Gy) indicated that the incidence of brain tumors per unit surface absorbed dose was over 19 times that of the human tinea capitis patients whose heads were exposed to 100 kv x-rays. Examination of those rats that died in the two-year interval after irradiation of the head revealed a linear dose-response for total head and neck tumor incidence in the dose range of 0-8.5 Gy. The exposed rats had a greater incidence of pituitary chromophobe adenomas, epithelial and mesothelial cell tumors than the unexposed controls but the excessive occurrence of malignant gliomas that was observed in the monkeys was absent in the rats. The estimated dose required to double the number of all types of head and neck tumors was 5.2 Gy. The highest dose, 18 Gy, resulted in high mortality due to obstructive squamous metaplasia at less than 50 weeks, prompting a new study of the relative biological effectiveness of high energy protons in producing this lesion. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Wood, D AU - Cox, A AU - Hardy, K AU - Salmon, Y AU - Trotter, R AD - Southwest Research Institute, San Antonio, TX 78228, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 681 EP - 684 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Non-NASA Center KW - Rats KW - Pituitary Neoplasms -- epidemiology KW - Animals KW - Relative Biological Effectiveness KW - Rats, Inbred F344 KW - Carcinoma -- epidemiology KW - Adenoma -- epidemiology KW - Incidence KW - Dose-Response Relationship, Radiation KW - Male KW - Longevity KW - Risk Assessment KW - Protons -- adverse effects KW - Brain Neoplasms -- epidemiology KW - Neoplasms, Radiation-Induced -- epidemiology KW - Head and Neck Neoplasms -- epidemiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109129?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Head+and+neck+tumors+after+energetic+proton+irradiation+in+rats.&rft.au=Wood%2C+D%3BCox%2C+A%3BHardy%2C+K%3BSalmon%2C+Y%3BTrotter%2C+R&rft.aulast=Wood&rft.aufirst=D&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=681&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiation protection issues in galactic cosmic ray risk assessment. AN - 77109074; 11538038 AB - Radiation protection involves the limitation of exposure to below threshold doses for direct (or deterministic) effects and a knowledge of the risk of stochastic effects after low doses. The principal stochastic risk associated with low dose rate galactic cosmic rays is the increased risk of cancer. Estimates of this risk depend on two factors (a) estimates of cancer risk for low-LET radiation and (b) values of the appropriate radiation weighting factors, WR, for the high-LET radiations of galactic cosmic rays. Both factors are subject to considerable uncertainty. The low-LET cancer risk derived from the late effects of the atomic bombs is vulnerable to a number of uncertainties including especially that from projection in time, and from extrapolation from high to low dose rate. Nevertheless, recent low dose studies of workers and others tend to confirm these estimates. WR, relies on biological effects studied mainly in non-human systems. Additional laboratory studies could reduce the uncertainties in WR and thus produce a more confident estimate of the overall risk of galactic cosmic rays. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Sinclair, W K AD - National Council on Radiation Protection and Measurements, Bethesda, MD 20814, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 879 EP - 884 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Non-NASA Center KW - Radiation Dosage KW - Humans KW - Infant, Newborn KW - Aged KW - Child KW - Dose-Response Relationship, Radiation KW - Risk Assessment KW - Child, Preschool KW - Infant KW - Astronauts KW - Aged, 80 and over KW - Space Flight KW - Risk Factors KW - Adult KW - Middle Aged KW - Adolescent KW - Linear Energy Transfer KW - Male KW - Female KW - Neoplasms, Radiation-Induced -- epidemiology KW - Cosmic Radiation -- adverse effects KW - Radiation Protection -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77109074?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Radiation+protection+issues+in+galactic+cosmic+ray+risk+assessment.&rft.au=Sinclair%2C+W+K&rft.aulast=Sinclair&rft.aufirst=W&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=879&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Heavy-ion induced genetic changes and evolution processes. AN - 77108616; 11538027 AB - On Moon and Mars, there will be more galactic cosmic rays and higher radiation doses than on earth. Our experimental studies showed that heavy ion radiation can effectively cause mutation and chromosome aberrations and that high-LET heavy-ion induced mutants can be irreversible. Chromosome translocations and deletions are common in cells irradiated by heavy particles, and ionizing radiations are effective in causing hyperploidy. The importance of the genetic changes in the evolution of life is an interesting question. Through evolution, there is an increase of DNA content in cells from lower forms of life to higher organisms. The DNA content, however, reached a plateau in vertebrates. By increasing DNA content, there can be an increase of information in the cell. For a given DNA content, the quality of information can be changed by rearranging the DNA. Because radiation can cause hyperploidy, an increase of DNA content in cells, and can induce DNA rearrangement, it is likely that the evolution of life on Mars will be effected by its radiation environment. A simple analysis shows that the radiation level on Mars may cause a mutation frequency comparable to that of the spontaneous mutation rate on Earth. To the extent that mutation plays a role in adaptation, radiation alone on Mars may thus provide sufficient mutation for the evolution of life. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Yang, C H AU - Craise, L M AU - Durante, M AU - Mei, M AD - NASA Johnson Space Center, Houston, TX 77058, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 373 EP - 382 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Center JSC KW - NASA Program Radiation Health KW - Rats KW - Mutagenesis -- radiation effects KW - Animals KW - Relative Biological Effectiveness KW - Moon KW - Embryo, Mammalian -- cytology KW - Embryo, Mammalian -- radiation effects KW - Mice KW - Dose-Response Relationship, Radiation KW - Radiation Genetics KW - Linear Energy Transfer KW - Cell Line KW - Radiation, Ionizing KW - Biological Evolution KW - Chromosome Aberrations KW - Mars KW - Mutation KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77108616?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Heavy-ion+induced+genetic+changes+and+evolution+processes.&rft.au=Yang%2C+C+H%3BCraise%2C+L+M%3BDurante%2C+M%3BMei%2C+M&rft.aulast=Yang&rft.aufirst=C&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=373&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Galactic cosmic ray transport methods: past, present, and future. AN - 77108124; 11538035 AB - The development of the theory of high charge and energy (HZE) ion transport is reviewed. The basic solution behavior and approximation techniques will be described. An overview of the HZE transport codes currently available at the Langley Research Center will be given. The near term goal of the Langley program is to produce a complete set of one-dimensional transport codes. The ultimate goal is to produce a set of complete three-dimensional codes which have been validated in the laboratory and can be applied in the engineering design environment. Recent progress toward completing these goals is discussed. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Wilson, J W AU - Townsend, L W AU - Shinn, J L AU - Cucinotta, F A AU - Costen, R C AU - Badavi, F F AU - Lamkin, S L AD - NASA Langley Research Center, Hampton, VA 23681, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 841 EP - 852 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Scattering, Radiation KW - Radiation Protection KW - Nuclear Physics KW - Models, Theoretical KW - Mathematics KW - Cosmic Radiation KW - Computer Simulation -- trends UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77108124?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Galactic+cosmic+ray+transport+methods%3A+past%2C+present%2C+and+future.&rft.au=Wilson%2C+J+W%3BTownsend%2C+L+W%3BShinn%2C+J+L%3BCucinotta%2C+F+A%3BCosten%2C+R+C%3BBadavi%2C+F+F%3BLamkin%2C+S+L&rft.aulast=Wilson&rft.aufirst=J&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=841&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Dose rate and repair effects on cell damage in Earth orbit. AN - 77108061; 11538025 AB - Radiobiology experiments performed in space will encounter continuous exposures to the cosmic rays and fractionated exposures to trapped protons which accumulate to several hundred dose fractions in a few weeks. Using models of track structure and cellular kinetics combined with models of the radiation environment and radiation transport, we consider calculations of damage rates for cell cultures. Analysis of the role of repair mechanisms for space exposures for the endpoints of survival and transformation is emphasized. JF - Advances in space research : the official journal of the Committee on Space Research (COSPAR) AU - Cucinotta, F A AU - Wilson, J W AU - Shinn, J L AU - Atwell, W AU - Fong, M AD - NASA Langley Research Center, Hampton, VA 23681, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 121 EP - 124 VL - 14 IS - 10 SN - 0273-1177, 0273-1177 KW - Protons KW - 0 KW - Aluminum KW - CPD4NFA903 KW - Space life sciences KW - NASA Discipline Number 45-10 KW - NASA Discipline Radiation Health KW - NASA Program Radiation Health KW - Radiation Dosage KW - Animals KW - Radiometry KW - Radiation Protection KW - Cells, Cultured KW - Space Flight KW - Mice KW - Dose-Response Relationship, Radiation KW - Cell Cycle -- radiation effects KW - Cell Transformation, Neoplastic KW - DNA Repair KW - Models, Biological KW - Cosmic Radiation -- adverse effects KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77108061?accountid=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+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.atitle=Dose+rate+and+repair+effects+on+cell+damage+in+Earth+orbit.&rft.au=Cucinotta%2C+F+A%3BWilson%2C+J+W%3BShinn%2C+J+L%3BAtwell%2C+W%3BFong%2C+M&rft.aulast=Cucinotta&rft.aufirst=F&rft.date=1994-01-01&rft.volume=14&rft.issue=10&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Advances+in+space+research+%3A+the+official+journal+of+the+Committee+on+Space+Research+%28COSPAR%29&rft.issn=02731177&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-28 N1 - Date created - 1995-06-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Body and brain development following exposure to 60Co gamma-irradiation during pregnancy in mice. AN - 76328441; 12703523 AB - We studied the dose-response effects of gamma-irradiation on the weight gains of the body and the brain in ICR mice exposed to various doses of 60Co gamma-irradiation ranging from 0 to 1.5 Gy on day 13 of pregnancy (El3). We found that 0.5 Gy gamma-irradiation caused a significant reduction in brain weight but not in body weight among 6-week-old mice. Higher doses (1.0, 1.5 Gy) seriously inhibited body and brain development, resulting in significantly low weights at 6 weeks of age. A significantly lower brain weight among fetuses exposed to 1.5 Gy was found as early as 24 hours after exposure, while significant reductions in the body weight of these same fetuses appeared 3 days after exposure. The effects of radiation on brain and body development were similar for both males and females. JF - Environmental medicine : annual report of the Research Institute of Environmental Medicine, Nagoya University AU - Sun, X Z AU - Inouye, M AU - Hayasaka, S AU - Yamamura, H AD - Department of Teratology and Genetics, Division of Molecular and Cellular Adaptation, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan. Y1 - 1994 PY - 1994 DA - 1994 SP - 111 EP - 114 VL - 38 IS - 2 SN - 0287-0517, 0287-0517 KW - Cobalt Radioisotopes KW - 0 KW - Space life sciences KW - Animals KW - Mice, Inbred ICR KW - Whole-Body Irradiation KW - Pregnancy, Animal KW - Mice KW - Organ Size -- radiation effects KW - Dose-Response Relationship, Radiation KW - Maternal Exposure KW - Male KW - Female KW - Pregnancy KW - Body Weight -- radiation effects KW - Gamma Rays KW - Embryonic and Fetal Development -- radiation effects KW - Brain -- radiation effects KW - Brain -- pathology KW - Animals, Newborn -- growth & development KW - Brain -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76328441?accountid=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+medicine+%3A+annual+report+of+the+Research+Institute+of+Environmental+Medicine%2C+Nagoya+University&rft.atitle=Body+and+brain+development+following+exposure+to+60Co+gamma-irradiation+during+pregnancy+in+mice.&rft.au=Sun%2C+X+Z%3BInouye%2C+M%3BHayasaka%2C+S%3BYamamura%2C+H&rft.aulast=Sun&rft.aufirst=X&rft.date=1994-01-01&rft.volume=38&rft.issue=2&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Environmental+medicine+%3A+annual+report+of+the+Research+Institute+of+Environmental+Medicine%2C+Nagoya+University&rft.issn=02870517&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-07-08 N1 - Date created - 2003-04-19 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - GEN T1 - Special section on space radiation. AN - 76311444; 11538015 JF - Radiation measurements Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 5 EP - 81 VL - 23 IS - 1 KW - Space life sciences KW - NASA Discipline Radiation Health KW - Non-NASA Center KW - Radiation Dosage KW - Radiation Protection KW - Cosmic Radiation KW - Space Flight KW - Radiation Monitoring UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76311444?accountid=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=unknown&rft.jtitle=Radiation+measurements&rft.atitle=Special+section+on+space+radiation.&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-18 N1 - Date created - 2000-03-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A spacecraft shielding model for calculating exposures to radiation. AN - 76310261; 11538013 AB - A spacecraft shielding model for calculating exposure to radiation is proposed. This model is based on the concept of the randomly inhomogeneous character of the material thickness distribution both in separate equipment units and the spacecraft as a whole. This concept has made it possible to obtain the shielding function of an arbitrary point in a spacecraft necessary to calculate the radiation exposure using its mean density, geometry and the ratio of the shielding function dispersion to its mean. This is constant for the spacecraft. This conclusion was verified for several Soviet and U.S.A. spacecraft, including the Space Shuttle. JF - Radiation measurements AU - Sakcharov, V M AD - Research Center of Spacecraft Radiation Safety, Moscow, Russia. Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 49 EP - 52 VL - 23 IS - 1 SN - 1350-4487, 1350-4487 KW - Space life sciences KW - United States KW - Reproducibility of Results KW - United States National Aeronautics and Space Administration KW - USSR KW - Space Flight -- instrumentation KW - Spacecraft -- instrumentation KW - Space Flight -- standards KW - Spacecraft -- standards KW - Radiation Protection -- standards KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76310261?accountid=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+measurements&rft.atitle=A+spacecraft+shielding+model+for+calculating+exposures+to+radiation.&rft.au=Sakcharov%2C+V+M&rft.aulast=Sakcharov&rft.aufirst=V&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-18 N1 - Date created - 2000-03-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Secondary radiations in spacecraft shieldings. AN - 76309314; 11538018 AB - Some problems are discussed which relate to the generation of secondary radiation under the effects of heavy charged cosmic ray particles in spacecraft shielding and in biological tissue. Methods for obtaining the total and differential inelastic interaction cross sections are recommended for use in the calculation of heavy charged particle transport in the shielding. The most extensively used methods for calculating heavy charged particle passage through matter are appraised. The results of calculating cosmic ray doses in biological tissue behind shielding, which allow for the secondary particle contribution, are presented. All the calculations have been made using the set of radiation protection standards approved by the Russian State Committee for Standards. The set of standards has been verified experimentally on board satellites of the Cosmos series. JF - Radiation measurements AU - Dudkin, V E AD - Research Center for Spacecraft Radiation Safety, Moscow, Russia. Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 9 EP - 23 VL - 23 IS - 1 SN - 1350-4487, 1350-4487 KW - Protons KW - 0 KW - Space life sciences KW - Phantoms, Imaging KW - Gamma Rays KW - Elementary Particle Interactions KW - Monte Carlo Method KW - Linear Energy Transfer KW - Software KW - Spacecraft -- instrumentation KW - Cosmic Radiation KW - Radiation Protection -- instrumentation KW - Radiation Protection -- standards KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76309314?accountid=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+measurements&rft.atitle=Secondary+radiations+in+spacecraft+shieldings.&rft.au=Dudkin%2C+V+E&rft.aulast=Dudkin&rft.aufirst=V&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-18 N1 - Date created - 2000-03-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Single track effects, Biostack and risk assessment. AN - 76309267; 11538014 AB - The scientific career of Prof. Bucker has spanned a very exciting period in the fledgling science of Space Radiation Biology. The capability for placing biological objects in space was developed, and the methods for properly packaging, retrieving and analyzing them were worked out. Meaningful results on the effects of radiation were obtained for the first time. In fact, many of the successful techniques and methodologies for handling biological samples were developed in Prof. Bucker's laboratories, as attested by the extensive Biostack program. He was the first to suggest and successfully carry out experiments in space directly aimed at measuring effects of single tracks of high-energy heavy galactic cosmic rays by specifically identifying whether or not the object had been hit by a heavy particle track. Because the "hit" frequencies of heavy galactic cosmic rays to cell nuclei in the bodies of space travelers will be low, it is expected that any effects to humans on the cellular level will be dominated by single-track cell traversals. This includes the most important generally recognized late effect of space radiation exposure: radiation-induced cancer. This paper addresses the single-track nature of the space radiation environment, and points out the importance of single "hits" in the evaluation of radiation risk for long-term missions occurring outside the earth's magnetic field. A short review is made of biological objects found to show increased effects when "hit" by a single heavy charged-particle in space. A brief discussion is given of the most provocative results from the bacterial spore Bacillus subtilis: experimental evidence that tracks can affect biological systems at much larger distances from the trajectory than previously suspected, and that the resultant inactivation cross section in space calculated for this system is very large. When taken at face value, the implication of these results, when compared to those from experiments performed at ground-based accelerators with beams at low energies in the same LET range, is that high-energy particles can exert their influence a surprising distance from their trajectory and the inactivation cross sections are some 20 times larger than expected. Clearly, beams from high-energy heavy-ion accelerators should be used to confirm these results. For those end points that can also be caused by low-LET beams such as high-energy protons, it is important to measure their action cross sections as well. The ratio of the cross sections for a high-LET beam to that of a low-LET beam is an interesting experimental ratio and, we suggest, of more intrinsic interest than the RBE (Relative Biological Effectiveness). It is a measure of the "biological" importance of one particle type relative to another particle type. This ratio will be introduced and given the name RPPE (Relative Per Particle Effectiveness). Values of RPPE have appeared in the literature and will be discussed. A rather well-known value of this quantity (13,520) has been suggested for the RPPE of high-energy iron ions to high-energy protons. This value was suggested by Letaw et al. Nature 330, 709-710 (1987)] we will call it the Letaw limit. It will be discussed in terms of the importance of the heavy-ion component vs light-ion component of the galactic cosmic rays. It is also pointed out, however, that there may be unique effects from single tracks of heavy ions that do not occur from light-ion tracks. For such effects, the concepts of both RBE and RPPE lose their meaning. JF - Radiation measurements AU - Curtis, S B AD - Lawrence Berkeley Laboratory, University of California 94720, USA. Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 5 EP - 8 VL - 23 IS - 1 SN - 1350-4487, 1350-4487 KW - Protons KW - 0 KW - Iron KW - E1UOL152H7 KW - Space life sciences KW - NASA Discipline Radiation Health KW - Non-NASA Center KW - Relative Biological Effectiveness KW - Radiation Protection KW - Elementary Particle Interactions KW - Bacillus subtilis -- radiation effects KW - Risk Assessment KW - Models, Theoretical KW - Cosmic Radiation KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76309267?accountid=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+measurements&rft.atitle=Single+track+effects%2C+Biostack+and+risk+assessment.&rft.au=Curtis%2C+S+B&rft.aulast=Curtis&rft.aufirst=S&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-18 N1 - Date created - 2000-03-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Radiation dosimetry measurements during U.S. Space Shuttle missions with the RME-III. AN - 76307514; 11538011 AB - Time-resolved radiation dosimetry measurements inside the crew compartment have been made during recent Shuttle missions with the U.S. Air Force Radiation Monitoring Equipment-III (RME-III), a portable battery-powered four-channel tissue equivalent proportional counter. Results from the first six missions are presented and discussed. Half of the missions had orbital inclinations of 28.5 degrees with the remainder at inclinations of 57 degrees or greater; altitudes ranged from 300 to 600 km. The determined dose equivalent rates ranged from 70 to 5300 microSv/day. The RME-III measurements are in good agreement with other dosimetry measurements made aboard the vehicles. Measurements indicate that medium- and high-LET particles contribute less than 2% of the particle fluence for all missions, but up to 50% of the dose equivalent, depending on the spacecraft's altitude and orbital inclination. Isocontours of fluence, dose and dose equivalent rate have been developed from measurements made during the STS-28 mission. The drift rate of the South Atlantic Anomaly is estimated to be 0.49 degrees W/yr and 0.12 degrees N/yr. The calculated trapped proton and GCR dose for the STS-28 mission was significantly lower than the measured values. JF - Radiation measurements AU - Golightly, M J AU - Hardy, K AU - Quam, W AD - NASA Johnson Space Center, Houston, TX 77058, USA. Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 25 EP - 42 VL - 23 IS - 1 SN - 1350-4487, 1350-4487 KW - Protons KW - 0 KW - Space life sciences KW - manned KW - STS-28 Shuttle Project KW - Flight Experiment KW - short duration KW - STS Shuttle Project KW - Radiation Dosage KW - South America KW - Radiometry -- instrumentation KW - Equipment Design KW - Spacecraft -- instrumentation KW - Linear Energy Transfer KW - Atlantic Ocean KW - Space Flight -- instrumentation KW - Solar Activity KW - Cosmic Radiation KW - Extraterrestrial Environment KW - Radiation Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76307514?accountid=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+measurements&rft.atitle=Radiation+dosimetry+measurements+during+U.S.+Space+Shuttle+missions+with+the+RME-III.&rft.au=Golightly%2C+M+J%3BHardy%2C+K%3BQuam%2C+W&rft.aulast=Golightly&rft.aufirst=M&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-18 N1 - Date created - 2000-03-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A note on vector flux models for radiation dose calculations. AN - 76306129; 11538012 AB - This paper reviews and extends modelling of anisotropic fluxes for radiation belt protons to provide closed-form equations for vector proton fluxes and proton flux anisotropy in terms of standard omnidirectional flux models. These equations provide a flexible alternative to the data-based vector flux models currently available. At higher energies, anisotropy of trapped proton flux in the upper atmosphere depends strongly on the variation of atmospheric density with altitude. Calculations of proton flux anisotropies using present models require specification of the average atmospheric density along trapped particle trajectories and its variation with mirror point altitude. For an isothermal atmosphere, calculations show that in a dipole magnetic field, the scale height of this trajectory-averaged density closely approximates the scale height of the atmosphere at the mirror point of the trapped particle. However, for the earth's magnetic field, the altitudes of mirror points vary for protons drifting in longitude. This results in a small increase in longitude-averaged scale heights compared to the atmospheric scale heights at minimum mirror point altitudes. The trajectory-averaged scale heights are increased by about 10-20% over scale heights from standard atmosphere models for protons mirroring at altitudes less than 500 km in the South Atlantic Anomaly. Atmospheric losses of protons in the geomagnetic field minimum in the South Atlantic Anomaly control proton flux anisotropies of interest for radiation studies in low earth orbit. Standard atmosphere models provide corrections for diurnal, seasonal and solar activity-driven variations. Thus, determination of an "equilibrium" model of trapped proton fluxes of a given energy requires using a scale height that is time-averaged over the lifetime of the protons. The trajectory-averaged atmospheric densities calculated here lead to estimates for trapped proton lifetimes. These lifetimes provide appropriate time-averaging intervals for equilibrium models of trapped proton fluxes. JF - Radiation measurements AU - Kern, J W AD - Rockwell International Space Systems Division, Houston, TX 77058, USA. Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 43 EP - 48 VL - 23 IS - 1 SN - 1350-4487, 1350-4487 KW - Protons KW - 0 KW - Space life sciences KW - Radiation Dosage KW - South America KW - Magnetics KW - Anisotropy KW - Nuclear Physics KW - Extraterrestrial Environment KW - Atmosphere KW - Atlantic Ocean KW - Mathematics KW - Solar Activity KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76306129?accountid=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+measurements&rft.atitle=A+note+on+vector+flux+models+for+radiation+dose+calculations.&rft.au=Kern%2C+J+W&rft.aulast=Kern&rft.aufirst=J&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-18 N1 - Date created - 2000-03-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A method for estimating the bremsstrahlung dose into spacecraft from incident electrons. AN - 76305796; 11538016 AB - An approximate procedure is proposed for finding the dose from radiation belt electron-induced bremsstrahlung inside spacecraft. A good agreement (to within 10%) with the direct three-dimensional Monte-Carlo calculation is attained when the spacecraft material is homogenized. If a homogeneous slab of material is used to estimate absorbed dose inside a spacecraft, the resultant estimate proves to be up to five times as low as the result obtained using a randomly inhomogeneous distribution of spacecraft material for an electron spectrum in a geosynchronous orbit. JF - Radiation measurements AU - Sakcharov, V M AD - Research Center of Spacecraft Radiation Safety, Moscow, Russia. Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 53 EP - 56 VL - 23 IS - 1 SN - 1350-4487, 1350-4487 KW - Protons KW - 0 KW - Space life sciences KW - Software KW - Radiation Dosage KW - Space Flight KW - Extraterrestrial Environment KW - Monte Carlo Method KW - Heavy Ions KW - Electrons KW - Gamma Rays KW - Spacecraft KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76305796?accountid=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+measurements&rft.atitle=A+method+for+estimating+the+bremsstrahlung+dose+into+spacecraft+from+incident+electrons.&rft.au=Sakcharov%2C+V+M&rft.aulast=Sakcharov&rft.aufirst=V&rft.date=1994-01-01&rft.volume=23&rft.issue=1&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Radiation+measurements&rft.issn=13504487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-18 N1 - Date created - 2000-03-18 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Ratios of leaf reflectances in narrow wavebands as indicators of plant stress AN - 745655897; 110778 AB - Ratios of leaf reflectances that were measured within narrow wavebands (2 nm) were evaluated as indicators of plant stress. Wavebands used in ratio computation were based on earlier studies that determined the wavelength regions in which reflectance was most affected by 8 stress agents among 6 plant species. Several ratios, such as reflectance at 695 nm divided by reflectance at 670 nm (R695/R670), were affected by some but not all stress agents. However, R695/R420, R605/R760, R695/R760 and R710/R760 were significantly greater (p<0 multiplied by 05) in stressed compared with non-stressed leaves for all stress agents. The ratios that most strongly indicated plant stress were reflectance at 695 nm divided by reflectance at 420 nm or 760 nm. JF - International Journal of Remote Sensing AU - Carter, Gregory A AD - NASA, MS, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 697 EP - 703 VL - 15 IS - 3 SN - 0143-1161, 0143-1161 KW - Image analysis KW - Imaging techniques KW - Leaf reflectances KW - Narrow wavebands KW - Plant stress KW - Plants (botany) KW - Spectrum analysis KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Optical properties KW - W4 741.1:LIGHT/OPTICS KW - W4 941.4:OPTICAL VARIABLES MEASUREMENTS KW - W4 931.2:PHYSICAL PROPERTIES OF GASES, LIQUIDS AND SOLIDS KW - W4 461.9:BIOLOGY KW - W4 741.3:OPTICAL DEVICES AND SYSTEMS KW - W 30965:Miscellaneous, Reviews KW - W4 732.1:CONTROL EQUIPMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745655897?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=Ratios+of+leaf+reflectances+in+narrow+wavebands+as+indicators+of+plant+stress&rft.au=Carter%2C+Gregory+A&rft.aulast=Carter&rft.aufirst=Gregory&rft.date=1994-01-01&rft.volume=15&rft.issue=3&rft.spage=697&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Optical properties ER - TY - JOUR T1 - The planetary setting of prebiotic evolution AN - 742913182; 2010-053909 JF - Nobel Symposium AU - Chang, Sherwood A2 - Bengtson, Stefan Y1 - 1994 PY - 1994 DA - 1994 SP - 10 EP - 23 PB - Nobelstiftelsen, Stockholm VL - 84 SN - 0346-8313, 0346-8313 KW - sea water KW - Precambrian KW - clastic sediments KW - biochemistry KW - oxidation KW - atmosphere KW - biologic evolution KW - life origin KW - hydrothermal conditions KW - gases KW - models KW - organic compounds KW - paleoenvironment KW - chemical reactions KW - energy sources KW - volcanism KW - dust KW - sediments KW - aerosols KW - world ocean KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742913182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nobel+Symposium&rft.atitle=The+planetary+setting+of+prebiotic+evolution&rft.au=Chang%2C+Sherwood&rft.aulast=Chang&rft.aufirst=Sherwood&rft.date=1994-01-01&rft.volume=84&rft.issue=&rft.spage=10&rft.isbn=0231080883&rft.btitle=&rft.title=Nobel+Symposium&rft.issn=03468313&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Nobel symposium on Early life on Earth N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - 26ZHAG N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; biochemistry; biologic evolution; chemical reactions; clastic sediments; dust; energy sources; gases; hydrothermal conditions; life origin; models; organic compounds; oxidation; paleoenvironment; Precambrian; sea water; sediments; volcanism; world ocean ER - TY - GEN T1 - The Living Ocean. AN - 62566941; ED404119 AB - This teaching guide contains information, activities, and discussion questions and answers about oceans for grades nine and ten. The information section covers the following topics: studying global ocean color from space, what can be seen from space, phytoplankton, carbon dioxide, and the greenhouse effect of the earth. (MKR) Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 9 PB - NASA Teacher Resource Center, Mail Stop 8-1, NASA Lewis Research Center, 2100 Brookpark Road, Cleveland, OH 44135. KW - Atmospheres KW - Carbon Dioxide KW - Phytoplankton KW - ERIC, Resources in Education (RIE) KW - Science Education KW - Greenhouse Effect KW - Grade 10 KW - Environmental Education KW - Photosynthesis KW - High Schools KW - Teaching Guides KW - Oceanography KW - Grade 9 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62566941?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - GEN T1 - Planet Hopping: A Gameboard for the Primary Student. AN - 62556279; ED400201 AB - The objective of this board game is for players to travel to all the planets with the winner being the first to return to Earth. Students are required to use their knowledge of the planets for the game. (JRH) Y1 - 1994 PY - 1994 DA - 1994 SP - 12 PB - NASA Lewis Research Center, Teacher Resource Center, MS 8-1, 21000 Brookpark Road, Cleveland, OH 44135. KW - Planets KW - ERIC, Resources in Education (RIE) KW - Teachers KW - Practitioners KW - Elementary Education KW - Educational Games KW - Astronomy KW - Space Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62556279?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - BOOK T1 - Earth Observing System; Science strategy for the Earth Observing System AN - 52862660; 1996-031487 JF - Earth Observing System; Science strategy for the Earth Observing System AU - Asrar, Ghassem AU - Dozier, Jeff Y1 - 1994 PY - 1994 DA - 1994 SP - 119 PB - American Institute of Physics, Woodbury, NY SN - 1563961989 KW - hydrology KW - ocean circulation KW - Earth KW - biochemistry KW - global change KW - ecosystems KW - satellite methods KW - geochemical cycle KW - hydrologic cycle KW - Earth Observing System KW - ecology KW - greenhouse effect KW - climate KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52862660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Asrar%2C+Ghassem%3BDozier%2C+Jeff&rft.aulast=Asrar&rft.aufirst=Ghassem&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1563961989&rft.btitle=Earth+Observing+System%3B+Science+strategy+for+the+Earth+Observing+System&rft.title=Earth+Observing+System%3B+Science+strategy+for+the+Earth+Observing+System&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 107 N1 - PubXState - NY N1 - Document feature - illus. incl. 10 tables, strat. cols. N1 - SuppNotes - Includes 2 appendices N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The Global Change Data and Information System (GCDIS); the role of libraries in development and implementation AN - 52853607; 1996-034502 JF - Proceedings - Geoscience Information Society AU - Banholzer, Gordon S, Jr A2 - Haner, Barbara E. A2 - O'Donnell, Jim Y1 - 1994 PY - 1994 DA - 1994 SP - 89 EP - 91 PB - Geoscience Information Society, [location varies] VL - 25 SN - 0072-1409, 0072-1409 KW - libraries KW - programs KW - data acquisition KW - government agencies KW - data processing KW - global change KW - current research KW - progress report KW - objectives KW - report KW - data bases KW - Global Change Data and Information System KW - information systems KW - GCDIS KW - data retrieval KW - data storage KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52853607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+Geoscience+Information+Society&rft.atitle=The+Global+Change+Data+and+Information+System+%28GCDIS%29%3B+the+role+of+libraries+in+development+and+implementation&rft.au=Banholzer%2C+Gordon+S%2C+Jr&rft.aulast=Banholzer&rft.aufirst=Gordon&rft.date=1994-01-01&rft.volume=25&rft.issue=&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Geoscience+Information+Society&rft.issn=00721409&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-ninth meeting of the Geoscience Information Society on Changing gateways; the impact of technology on geoscience information exchange N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - Last updated - 2012-06-07 N1 - CODEN - GISPAL N1 - SubjectsTermNotLitGenreText - current research; data acquisition; data bases; data processing; data retrieval; data storage; GCDIS; global change; Global Change Data and Information System; government agencies; information systems; libraries; objectives; programs; progress report; report ER - TY - BOOK T1 - Extraterrestrial impacts and mass extinctions of life AN - 52779755; 1997-013187 JF - Hazards due to comets and asteroids AU - Rampino, Michael R AU - Haggerty, Bruce M A2 - Gehrels, Tom A2 - Gehrels, Tom Y1 - 1994 PY - 1994 DA - 1994 PB - University of Arizona Press, Tucson, AZ KW - asteroids KW - statistical analysis KW - mechanism KW - impacts KW - platinum group KW - iridium KW - variations KW - environment KW - comets KW - craters KW - metals KW - probability KW - mass extinctions KW - catastrophes KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52779755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Rampino%2C+Michael+R%3BHaggerty%2C+Bruce+M&rft.aulast=Rampino&rft.aufirst=Michael&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=081651505&rft.btitle=Extraterrestrial+impacts+and+mass+extinctions+of+life&rft.title=Extraterrestrial+impacts+and+mass+extinctions+of+life&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 116 N1 - PubXState - AZ N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Environmental perturbations caused by asteroid impacts AN - 52775746; 1997-013186 JF - Hazards due to comets and asteroids AU - Toon, Owen B AU - Zahnle, Kevin AU - Turco, Richard P AU - Covey, Curt A2 - Gehrels, Tom A2 - Gehrels, Tom Y1 - 1994 PY - 1994 DA - 1994 PB - University of Arizona Press, Tucson, AZ KW - dust storms KW - lower Paleocene KW - geologic hazards KW - asteroids KW - Cretaceous KW - global KW - mechanism KW - Paleogene KW - impacts KW - Upper Cretaceous KW - Mesozoic KW - Cenozoic KW - Tertiary KW - K-T boundary KW - Paleocene KW - tidal surges KW - extinction KW - stratigraphic boundary KW - catastrophes KW - 12:Stratigraphy KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52775746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Toon%2C+Owen+B%3BZahnle%2C+Kevin%3BTurco%2C+Richard+P%3BCovey%2C+Curt&rft.aulast=Toon&rft.aufirst=Owen&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=081651505&rft.btitle=Environmental+perturbations+caused+by+asteroid+impacts&rft.title=Environmental+perturbations+caused+by+asteroid+impacts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 63 N1 - PubXState - AZ N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Properties of cometary nuclei AN - 52775696; 1997-013179 JF - Hazards due to comets and asteroids AU - Rahe, J AU - Vanysek, V AU - Weissman, P R A2 - Gehrels, Tom A2 - Gehrels, Tom Y1 - 1994 PY - 1994 DA - 1994 PB - University of Arizona Press, Tucson, AZ KW - carbonaceous composition KW - density KW - asteroids KW - cometary nuclei KW - cosmochemistry KW - planetesimals KW - meteoroids KW - impacts KW - interplanetary dust KW - volatiles KW - comets KW - craters KW - Oort cloud KW - spectra KW - chemical composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52775696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Rahe%2C+J%3BVanysek%2C+V%3BWeissman%2C+P+R&rft.aulast=Rahe&rft.aufirst=J&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=081651505&rft.btitle=Properties+of+cometary+nuclei&rft.title=Properties+of+cometary+nuclei&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 155 N1 - PubXState - AZ N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - The impact hazard AN - 52774599; 1997-013168 JF - Hazards due to comets and asteroids AU - Morrison, David AU - Chapman, Clark R AU - Slovic, Paul A2 - Gehrels, Tom A2 - Gehrels, Tom Y1 - 1994 PY - 1994 DA - 1994 PB - University of Arizona Press, Tucson, AZ KW - lower Paleocene KW - geologic hazards KW - asteroids KW - Cretaceous KW - global KW - atmosphere KW - Paleogene KW - impacts KW - Upper Cretaceous KW - Mesozoic KW - Cenozoic KW - meteorites KW - Tertiary KW - K-T boundary KW - Paleocene KW - climate effects KW - risk assessment KW - stratigraphic boundary KW - catastrophes KW - 12:Stratigraphy KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52774599?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Morrison%2C+David%3BChapman%2C+Clark+R%3BSlovic%2C+Paul&rft.aulast=Morrison&rft.aufirst=David&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=081651505&rft.btitle=The+impact+hazard&rft.title=The+impact+hazard&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 62 N1 - PubXState - AZ N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Missions to near-Earth objects AN - 52763909; 1997-013181 JF - Hazards due to comets and asteroids AU - Cheng, Andrew F AU - Veverka, J AU - Pilcher, C AU - Farquhar, Robert W A2 - Gehrels, Tom A2 - Gehrels, Tom Y1 - 1994 PY - 1994 DA - 1994 PB - University of Arizona Press, Tucson, AZ KW - physical properties KW - comets KW - asteroids KW - Galileo Program KW - data acquisition KW - Discovery program KW - chemical properties KW - satellite methods KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52763909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Cheng%2C+Andrew+F%3BVeverka%2C+J%3BPilcher%2C+C%3BFarquhar%2C+Robert+W&rft.aulast=Cheng&rft.aufirst=Andrew&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=081651505&rft.btitle=Missions+to+near-Earth+objects&rft.title=Missions+to+near-Earth+objects&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 32 N1 - PubXState - AZ N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Using known map category marginal frequencies to improve estimates of thematic map accuracy AN - 52759160; 1997-014576 JF - Remote sensing thematic accuracy assessment; a compendium AU - Card, Don H A2 - Fenstermaker, Lynn K. Y1 - 1994 PY - 1994 DA - 1994 PB - American Society for Photogrammetry and Remote Sensing, Bethesda, MD SN - 1570830029 KW - thematic mapper KW - errors KW - sampling KW - cartography KW - statistical analysis KW - mapping KW - accuracy KW - design KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52759160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Card%2C+Don+H&rft.aulast=Card&rft.aufirst=Don&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1570830029&rft.btitle=Using+known+map+category+marginal+frequencies+to+improve+estimates+of+thematic+map+accuracy&rft.title=Using+known+map+category+marginal+frequencies+to+improve+estimates+of+thematic+map+accuracy&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 10 N1 - PubXState - MD N1 - Document feature - 6 tables N1 - SuppNotes - Reprinted from Photogramm. Eng. and Rem. Sens., Vol. 48, No. 3, p. 431-439, March 1982 N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Prehistoric footpaths in Costa Rica; remote sensing and field verification AN - 52754424; 1997-015446 JF - Archaeology, volcanism, and remote sensing in the Arenal region, Costa Rica AU - McKee, Brian R AU - Sever, Thomas L AU - Sheets, Payson D A2 - Sheets, Payson D. A2 - McKee, Brian R. Y1 - 1994 PY - 1994 DA - 1994 PB - University of Texas Press, Austin, TX SN - 0292776675 KW - methods KW - imagery KW - archaeology KW - anthropology KW - volcanic rocks KW - erosion KW - igneous rocks KW - human activity KW - Costa Rica KW - Arenal KW - tracks KW - excavations KW - burial KW - artifacts KW - pyroclastics KW - archaeological sites KW - Central America KW - accuracy KW - remote sensing KW - field studies KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52754424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=McKee%2C+Brian+R%3BSever%2C+Thomas+L%3BSheets%2C+Payson+D&rft.aulast=McKee&rft.aufirst=Brian&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0292776675&rft.btitle=Prehistoric+footpaths+in+Costa+Rica%3B+remote+sensing+and+field+verification&rft.title=Prehistoric+footpaths+in+Costa+Rica%3B+remote+sensing+and+field+verification&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - TX N1 - Document feature - illus. incl. 4 plates, sketch map N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Earth science data compression issues and activities AN - 52738084; 1997-022328 JF - Remote Sensing Reviews AU - Tilton, James C AU - Manohar, M AU - Newcomer, Jeffrey A Y1 - 1994 PY - 1994 DA - 1994 SP - 271 EP - 298 PB - Harwood Academic Publishers VL - 9 IS - 4 SN - 0275-7257, 0275-7257 KW - thematic mapper KW - imagery KW - data processing KW - pixels KW - satellite methods KW - computer programs KW - Landsat KW - Earth Observing System KW - data compression KW - data bases KW - information systems KW - data retrieval KW - orbital observations KW - algorithms KW - data storage KW - image enhancement KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52738084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+Reviews&rft.atitle=Earth+science+data+compression+issues+and+activities&rft.au=Tilton%2C+James+C%3BManohar%2C+M%3BNewcomer%2C+Jeffrey+A&rft.aulast=Tilton&rft.aufirst=James&rft.date=1994-01-01&rft.volume=9&rft.issue=4&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+Reviews&rft.issn=02757257&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; computer programs; data bases; data compression; data processing; data retrieval; data storage; Earth Observing System; image enhancement; imagery; information systems; Landsat; orbital observations; pixels; remote sensing; satellite methods; thematic mapper ER - TY - RPRT T1 - What initiated planetesimal formation AN - 52606085; 1998-033832 AB - The physical structure of primitive (chondritic) meteorites, even after some geological processing and modification, is thought by most to contain clues as to the first stage of accretion of solid matter into objects that might be called planetesimals. However, theoretical understanding of the processes responsible for this important stage is shaky. We note what we believe are fundamental obstacles for the Goldreich-Ward version of rapid and direct planetesimal formation via gravitational instability in a settled particle layer, and describe an alternative scenario which might lead from grainy nebula gas to primitive planetesimals in a way that has intriguing connections to the meteorite evidence. JF - What initiated planetesimal formation AU - Cuzzi, J N AU - Dobrovolskis, A R AU - Hogan, R C Y1 - 1994 PY - 1994 DA - 1994 SP - 2 KW - solar nebula KW - meteorites KW - protoplanets KW - gravity field KW - accretion KW - stony meteorites KW - planetology KW - planetesimals KW - chondrites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52606085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Cuzzi%2C+J+N%3BDobrovolskis%2C+A+R%3BHogan%2C+R+C&rft.aulast=Cuzzi&rft.aufirst=J&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=What+initiated+planetesimal+formation&rft.title=What+initiated+planetesimal+formation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number N94-35422/2NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the Twenty-fifth lunar and planetary science conference, Houston, TX N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The impact of Comet-Shoemaker-Levy 9 on Jupiter AN - 52563260; 1998-062294 JF - Bulletin of the American Astronomical Society AU - Low, M M Mac AU - Zahnle, K AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 926 PB - American Institute of Physics, New York, NY VL - 26 IS - 2 SN - 0002-7537, 0002-7537 KW - numerical models KW - explosions KW - ZEUS KW - Jupiter KW - Shoemaker-Levy 9 Comet KW - atmosphere KW - troposphere KW - impacts KW - giant planets KW - planets KW - comets KW - fragments KW - outer planets KW - energy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52563260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+American+Astronomical+Society&rft.atitle=The+impact+of+Comet-Shoemaker-Levy+9+on+Jupiter&rft.au=Low%2C+M+M+Mac%3BZahnle%2C+K%3BAnonymous&rft.aulast=Low&rft.aufirst=M+M&rft.date=1994-01-01&rft.volume=26&rft.issue=2&rft.spage=926&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+American+Astronomical+Society&rft.issn=00027537&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 184th meeting of the American Astronomical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; comets; energy; explosions; fragments; giant planets; impacts; Jupiter; numerical models; outer planets; planets; Shoemaker-Levy 9 Comet; troposphere; ZEUS ER - TY - JOUR T1 - Are the fragments of Comet Shoemaker-Levy 9 swarms of meter-sized planetesimals? AN - 52563214; 1998-062287 JF - Bulletin of the American Astronomical Society AU - Rettig, T W AU - Mumma, M J AU - Tegler, S C AU - Hahn, J AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 862 PB - American Institute of Physics, New York, NY VL - 26 IS - 2 SN - 0002-7537, 0002-7537 KW - comets KW - fragments KW - Shoemaker-Levy 9 Comet KW - planetesimals KW - impacts KW - comae KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52563214?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+American+Astronomical+Society&rft.atitle=Are+the+fragments+of+Comet+Shoemaker-Levy+9+swarms+of+meter-sized+planetesimals%3F&rft.au=Rettig%2C+T+W%3BMumma%2C+M+J%3BTegler%2C+S+C%3BHahn%2C+J%3BAnonymous&rft.aulast=Rettig&rft.aufirst=T&rft.date=1994-01-01&rft.volume=26&rft.issue=2&rft.spage=862&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+American+Astronomical+Society&rft.issn=00027537&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 184th meeting of the American Astronomical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - comae; comets; fragments; impacts; planetesimals; Shoemaker-Levy 9 Comet ER - TY - RPRT T1 - EOS AM spacecraft; a key component of the U. S. Global Change Research Program AN - 52236198; 2001-034650 JF - EOS AM spacecraft; a key component of the U. S. Global Change Research Program Y1 - 1994 PY - 1994 DA - 1994 KW - programs KW - monitoring KW - government agencies KW - atmosphere KW - global change KW - satellite methods KW - environmental effects KW - climate change KW - measurement KW - gases KW - fires KW - Earth Observing System KW - NASA KW - eruptions KW - volcanoes KW - greenhouse effect KW - land use KW - instruments KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52236198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=EOS+AM+spacecraft%3B+a+key+component+of+the+U.+S.+Global+Change+Research+Program&rft.title=EOS+AM+spacecraft%3B+a+key+component+of+the+U.+S.+Global+Change+Research+Program&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Availability - NASA, Goddard Space Flight Center, Greenbelt, MD, United States N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Landsat; a satellite for all seasons; an environmental series AN - 51984381; 2003-040891 AB - Shows how Landsat's remote sensing capabilities can aid in resolving environmental quality problems and provide visual imagery of resource problems in the fields of environmental quality, geology, and in land development supervision. JF - Landsat; a satellite for all seasons; an environmental series Y1 - 1994 PY - 1994 DA - 1994 KW - Landsat KW - imagery KW - educational resources KW - monitoring KW - K-12 education KW - human activity KW - ecology KW - education KW - satellite methods KW - land use KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51984381?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Landsat%3B+a+satellite+for+all+seasons%3B+an+environmental+series&rft.title=Landsat%3B+a+satellite+for+all+seasons%3B+an+environmental+series&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2003-01-01 N1 - Availability - National Technical Information Service, (703)487-4650, order number AV010628-V060NEG, Springfield, VA, United States N1 - SuppNotes - 3/4 inch BETA cassette; Project 18000 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Earthquake below AN - 51956000; 2003-058570 AB - Centers on San Francisco, the city that lives in constant threat of earthquakes. Shows how earthquakes shattered the San Francisco of 1906 and upset suburban Los Angeles more recently. Explains how they are caused, and pictures the fault systems that are prime targets for future earthquakes. JF - Earthquake below Y1 - 1994 PY - 1994 DA - 1994 KW - United States KW - history KW - California KW - educational resources KW - geologic hazards KW - San Francisco earthquake 1906 KW - education KW - seismic response KW - earthquakes KW - faults KW - urban environment KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51956000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Earthquake+below&rft.title=Earthquake+below&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2003-01-01 N1 - Availability - National Technical Information Service, (703)487-4650, order number AVA01528-VNB1NEG, Springfield, VA, United States N1 - SuppNotes - Project 18000 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Fractured look AN - 51955918; 2003-058568 AB - Examines the ways in which Landsat may serve as a tool in searching for minerals and monitoring geological hazards. The satellite can reveal fractures or faults that may indicate past, present, or potential earthquake activity. Faults are also the pathways minerals use to make their way from deep within the earth to its surface. Shows how the Landsat imagery can contribute to exploration for mineral resources by revealing fractures and rock alterations. JF - Fractured look Y1 - 1994 PY - 1994 DA - 1994 KW - mineral exploration KW - imagery KW - geologic hazards KW - damage KW - education KW - satellite methods KW - mineral resources KW - fractures KW - Landsat KW - educational resources KW - rocks KW - earthquakes KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51955918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Fractured+look&rft.title=Fractured+look&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2003-01-01 N1 - Availability - National Technical Information Service, (703)487-4650, order number AVA01522-VNB1NEG, Springfield, VA, United States N1 - SuppNotes - Project 18000 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Remote possibilities AN - 51955382; 2003-058569 AB - Presents Landsat and its big picture from outer space. Explains the concept of remote sensing. The satellite can provide visual imagery of resource problems in the fields of environmental quality, geology water, land use, and agriculture. The data acquired by the satellite is available to everyone to help resolve resource problems. JF - Remote possibilities Y1 - 1994 PY - 1994 DA - 1994 KW - Landsat KW - educational resources KW - monitoring KW - environmental geology KW - agriculture KW - education KW - water resources KW - satellite methods KW - land use KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51955382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Remote+possibilities&rft.title=Remote+possibilities&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2003-01-01 N1 - Availability - National Technical Information Service, (703)487-4650, order number AVA01525-VNB1NEG, Springfield, VA, United States N1 - SuppNotes - Project 18000 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The potential of SAR in hydrology AN - 51804527; 2004-071373 AB - Synthetic Aperture Radar (SAR) offers many possibilities for providing new data in process scale hydrology because of its response to variations in soil moisture and snow properties and its excellent spatial resolution. The achievable spatial resolution with SARs, on the order of a few tens of meters, is the same scale as the spatial distribution of soil moisture gradients caused by the variability in soil properties or terrain features found in the natural environment. It is also the same scale as the distribution of snow depth and water content, particularly in mountainous regions. To date the influence of other target features, specifically vegetation, roughness, and topography, has reduced the utility of applying SAR data successfully to hydrology. These problems are discussed with suggestions for minimizing these effects. JF - International Geoscience and Remote Sensing Symposium AU - Engman, Edwin T AU - Way, JoBea AU - McCleese, Dan Y1 - 1994 PY - 1994 DA - 1994 SP - 283 EP - 285 PB - Institute of Electrical and Electronics Engineers, New York, NY VL - 1994, Vol. 1 KW - moisture KW - data processing KW - atmospheric precipitation KW - vegetation KW - microwave methods KW - spatial variations KW - hydrologic cycle KW - SAR KW - snow KW - drainage basins KW - soils KW - hydrology KW - high-resolution methods KW - experimental studies KW - time variations KW - rainfall KW - radar methods KW - research KW - evapotranspiration KW - models KW - computer programs KW - runoff KW - remote sensing KW - meltwater KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51804527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Geoscience+and+Remote+Sensing+Symposium&rft.atitle=The+potential+of+SAR+in+hydrology&rft.au=Engman%2C+Edwin+T%3BWay%2C+JoBea%3BMcCleese%2C+Dan&rft.aulast=Engman&rft.aufirst=Edwin&rft.date=1994-01-01&rft.volume=1994%2C+Vol.+1&rft.issue=&rft.spage=283&rft.isbn=&rft.btitle=&rft.title=International+Geoscience+and+Remote+Sensing+Symposium&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IGARSS'94; Surface and atmospheric remote sensing; technologies, data analysis and interpretation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 8 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - CODEN - #03424 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; computer programs; data processing; drainage basins; evapotranspiration; experimental studies; high-resolution methods; hydrologic cycle; hydrology; meltwater; microwave methods; models; moisture; radar methods; rainfall; remote sensing; research; runoff; SAR; snow; soils; spatial variations; time variations; vegetation ER - TY - JOUR T1 - Integrated geophysical imaging of the Sudbury Structure using ERS-1 SAR and other airborne geophysical data AN - 51801411; 2004-073162 JF - International Geoscience and Remote Sensing Symposium AU - Moon, W M AU - Miao, X G AU - Singhroy, V AU - Lowman, P D, Jr AU - Way, JoBea AU - McCleese, Dan Y1 - 1994 PY - 1994 DA - 1994 SP - 711 PB - Institute of Electrical and Electronics Engineers, New York, NY VL - 1994, Vol. 2 KW - digital data KW - geophysical surveys KW - spatial data KW - data processing KW - mapping KW - Sudbury Structure KW - ground truth KW - SAR KW - ERS KW - tectonics KW - seismic profiles KW - geophysical methods KW - satellite methods KW - seismic methods KW - Ontario KW - models KW - case studies KW - Canada KW - surveys KW - geophysical profiles KW - Eastern Canada KW - image analysis KW - remote sensing KW - airborne methods KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51801411?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Geoscience+and+Remote+Sensing+Symposium&rft.atitle=Integrated+geophysical+imaging+of+the+Sudbury+Structure+using+ERS-1+SAR+and+other+airborne+geophysical+data&rft.au=Moon%2C+W+M%3BMiao%2C+X+G%3BSinghroy%2C+V%3BLowman%2C+P+D%2C+Jr%3BWay%2C+JoBea%3BMcCleese%2C+Dan&rft.aulast=Moon&rft.aufirst=W&rft.date=1994-01-01&rft.volume=1994%2C+Vol.+2&rft.issue=&rft.spage=711&rft.isbn=&rft.btitle=&rft.title=International+Geoscience+and+Remote+Sensing+Symposium&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - IGARSS'94, international geoscience and remote sensing symposium; Surface and atmospheric remote sensing; technologies, data analysis and interpretation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - CODEN - #03424 N1 - SubjectsTermNotLitGenreText - airborne methods; Canada; case studies; data processing; digital data; Eastern Canada; ERS; geophysical methods; geophysical profiles; geophysical surveys; ground truth; image analysis; mapping; models; Ontario; remote sensing; SAR; satellite methods; seismic methods; seismic profiles; spatial data; Sudbury Structure; surveys; tectonics ER - TY - JOUR T1 - Impact simulations with fracture; I, Method and tests AN - 51672478; 2005-069417 JF - Icarus (Online) AU - Benz, W AU - Asphaug, E Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 98 EP - 116 PB - Elsevier VL - 107 IS - 1 SN - 1090-2643, 1090-2643 KW - cratering KW - solar system KW - angular momentum KW - elasticity KW - impact features KW - asteroids KW - planetesimals KW - impacts KW - solid phase KW - models KW - mass KW - cracks KW - dynamic fragmentation KW - smooth particle hydrodynamics KW - velocity KW - planetology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51672478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Impact+simulations+with+fracture%3B+I%2C+Method+and+tests&rft.au=Benz%2C+W%3BAsphaug%2C+E&rft.aulast=Benz&rft.aufirst=W&rft.date=1994-01-01&rft.volume=107&rft.issue=1&rft.spage=98&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1994.1009 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - angular momentum; asteroids; cracks; cratering; dynamic fragmentation; elasticity; impact features; impacts; mass; models; planetesimals; planetology; smooth particle hydrodynamics; solar system; solid phase; velocity DO - http://dx.doi.org/10.1006/icar.1994.1009 ER - TY - RPRT T1 - Antarctica; laboratory for science AN - 51360523; 2003-058571 AB - Shows recent research into terrestrial and marine ecosystems, weather and climate, surface and subsurface geology, and changes in the size of the ice sheet. The continent of Antarctica and its surrounding oceans have been the subjects of continuous scientific examination since 1957, and the U.S. Antarctic Research Program has four permanent stations. For a general audience. JF - Antarctica; laboratory for science Y1 - 1994 PY - 1994 DA - 1994 KW - programs KW - educational resources KW - Antarctica KW - ecosystems KW - ecology KW - education KW - research KW - weathering KW - climate KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51360523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Antarctica%3B+laboratory+for+science&rft.title=Antarctica%3B+laboratory+for+science&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2003-01-01 N1 - Availability - National Technical Information Service, (703)487-4650, order number AVA02205-BCSPNEG, Springfield, VA, United States N1 - SuppNotes - Beta cassette; Project 18000 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Experimental determination of magnesium diffusion in orthoenstatite AN - 51321560; 1995-022679 JF - Abstracts with Programs - Geological Society of America AU - Schwandt, Craig S AU - Cygan, Randall T AU - Westrich, Henry R AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 481 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - silicates KW - alkaline earth metals KW - magnesium KW - experimental studies KW - diffusion KW - oxygen KW - mechanism KW - fugacity KW - temperature KW - pyroxene group KW - metals KW - cations KW - orthopyroxene KW - enstatite KW - chain silicates KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51321560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Experimental+determination+of+magnesium+diffusion+in+orthoenstatite&rft.au=Schwandt%2C+Craig+S%3BCygan%2C+Randall+T%3BWestrich%2C+Henry+R%3BAnonymous&rft.aulast=Schwandt&rft.aufirst=Craig&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=481&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, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; cations; chain silicates; diffusion; enstatite; experimental studies; fugacity; magnesium; mechanism; metals; orthopyroxene; oxygen; pyroxene group; silicates; temperature ER - TY - RPRT T1 - High spatial resolution telescopic multispectral imaging and spectroscopy of the Moon; 1, The Serenitatis/Tranquillitatis border region AN - 51319994; 1997-037628 AB - The region of the moon near the border between Mare Serenitatis and Mare Tranquillitatis is one of the most geologically and compositionally complex areas of the nearside. The geologic history of this region has been shaped by impacts of widely-varying spatial scale and temporal occurrence, by volcanism of variable style and composition with time, and by limited tectonism. We have been studying this region as part of a larger multi remote sensing technique effort to understand the composition, morphology, geology, and stratigraphy of the moon at spatial scales of 2 km or less. The effort has been aided by the proximity of this area to the Apollo 11, 15, and 17 landing sites and by the occurrence of one of the primary lunar spectroscopic "standard areas" within our scene (MS2). Here, some of the findings from the multispectral imaging and spectroscopy part of this effort are reported. JF - High spatial resolution telescopic multispectral imaging and spectroscopy of the Moon; 1, The Serenitatis/Tranquillitatis border region AU - Bell, J F AU - Hawke, B R Y1 - 1994 PY - 1994 DA - 1994 SP - 2 KW - stratigraphy KW - near-infrared spectra KW - high-resolution methods KW - imagery KW - Moon KW - space photography KW - Apollo Program KW - Mare Serenitatis KW - infrared spectra KW - multispectral analysis KW - Mare Tranquillitatis KW - volcanism KW - tectonics KW - spectra KW - geomorphology KW - geochemistry KW - remote sensing KW - 20:Applied geophysics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51319994?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bell%2C+J+F%3BHawke%2C+B+R&rft.aulast=Bell&rft.aufirst=J&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=High+spatial+resolution+telescopic+multispectral+imaging+and+spectroscopy+of+the+Moon%3B+1%2C+The+Serenitatis%2FTranquillitatis+border+region&rft.title=High+spatial+resolution+telescopic+multispectral+imaging+and+spectroscopy+of+the+Moon%3B+1%2C+The+Serenitatis%2FTranquillitatis+border+region&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1997-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number N94-35402/4NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the twenty-fifth Lunar and planet. sci. conf., Houston, TX, March 14-18, 1994 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The origin and role of dust in the early solar system AN - 51057033; 1996-046143 JF - LPI Technical Report AU - Brownlee, D E A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 13 EP - 14 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - solar nebula KW - genesis KW - solar system KW - comets KW - asteroids KW - cosmochemistry KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51057033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=The+origin+and+role+of+dust+in+the+early+solar+system&rft.au=Brownlee%2C+D+E&rft.aulast=Brownlee&rft.aufirst=D&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; comets; cosmochemistry; genesis; interplanetary dust; particles; solar nebula; solar system ER - TY - JOUR T1 - Antarctic micrometeorites AN - 51056995; 1996-046128 AB - Micrometeorites in the size range of 50-500 microns dominate the flux onto the Earth. Contrary to theoretical predictions, many of them survive atmospheric entry almost unchanged. Such micrometeorites can be collected from the antarctic ice sheet where they account for a surprisingly large proportion of the total dust content of the ice. Early studies of this important class of extraterrestrial material have revealed that some antarctic micrometeorites are similar to CM chondrites in chemical bulk composition and mineral composition, while a few seem to resemble CI chondrites. However, none of the micrometeorites investigated so far match CM or CI chondrites exactly, nor is there a match between average bulk micrometeorite composition and that of any other chondrite class. Also, the micrometeorite mineral chemistry is different from that of carbonaceous chondrites. Several elements are depleted in micrometeorites as compared to carbonaceous chondrites while some are enriched. (Auth. mod.) JF - LPI Technical Report AU - Kurat, G AU - Koeberl, C AU - Presper, T AU - Brandstaetter, F AU - Maurette, M A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 34 EP - 36 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - micrometeorites KW - meteorites KW - Antarctica KW - stony meteorites KW - major elements KW - trace elements KW - chondrites KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51056995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Antarctic+micrometeorites&rft.au=Kurat%2C+G%3BKoeberl%2C+C%3BPresper%2C+T%3BBrandstaetter%2C+F%3BMaurette%2C+M&rft.aulast=Kurat&rft.aufirst=G&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=34&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 32 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Antarctica; chondrites; interplanetary dust; major elements; meteorites; micrometeorites; particles; stony meteorites; trace elements ER - TY - JOUR T1 - Status report; Small Particles Intact Capture Experiment (SPICE) AN - 51056991; 1996-046131 JF - LPI Technical Report AU - Nishioka, K AU - Carle, G C AU - Bunch, T E AU - Mendez, D J AU - Ryder, J T A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 43 EP - 44 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - Small Particles Intact Capture Experiment KW - solar system KW - programs KW - SPICE KW - experimental studies KW - sampling KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51056991?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Status+report%3B+Small+Particles+Intact+Capture+Experiment+%28SPICE%29&rft.au=Nishioka%2C+K%3BCarle%2C+G+C%3BBunch%2C+T+E%3BMendez%2C+D+J%3BRyder%2C+J+T&rft.aulast=Nishioka&rft.aufirst=K&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - experimental studies; interplanetary dust; particles; programs; sampling; Small Particles Intact Capture Experiment; solar system; SPICE ER - TY - JOUR T1 - Workshop on the Analysis of interplanetary dust particles AN - 51056957; 1996-046115 JF - LPI Technical Report A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 62 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - symposia KW - extraterrestrial geology KW - analysis KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51056957?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=LPI+Technical+Report&rft.atitle=Workshop+on+the+Analysis+of+interplanetary+dust+particles&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Individual abstracts are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - analysis; extraterrestrial geology; interplanetary dust; particles; symposia ER - TY - JOUR T1 - A proposition for the classification of carbonaceous chondritic micrometeorites AN - 51056113; 1996-046132 JF - LPI Technical Report AU - Rietmeijer, F J M A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 44 EP - 47 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - stony meteorites KW - shape analysis KW - carbonaceous chondrites KW - interplanetary dust KW - morphology KW - micrometeorites KW - meteorites KW - optical properties KW - mineral composition KW - classification KW - chondrites KW - chemical composition KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51056113?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=A+proposition+for+the+classification+of+carbonaceous+chondritic+micrometeorites&rft.au=Rietmeijer%2C+F+J+M&rft.aulast=Rietmeijer&rft.aufirst=F+J&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=44&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 28 N1 - PubXState - TX N1 - Document feature - 6 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chemical composition; chondrites; classification; interplanetary dust; meteorites; micrometeorites; mineral composition; morphology; optical properties; particles; shape analysis; stony meteorites ER - TY - JOUR T1 - Modern sources of dust in the solar system AN - 51056076; 1996-046119 JF - LPI Technical Report AU - Dermott, S F AU - Durda, D D AU - Gustafson, B A S AU - Jayaraman, S AU - Liou, J C AU - Xu, Y L A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 17 EP - 18 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - solar system KW - provenance KW - asteroids KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51056076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Modern+sources+of+dust+in+the+solar+system&rft.au=Dermott%2C+S+F%3BDurda%2C+D+D%3BGustafson%2C+B+A+S%3BJayaraman%2C+S%3BLiou%2C+J+C%3BXu%2C+Y+L&rft.aulast=Dermott&rft.aufirst=S&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; interplanetary dust; particles; provenance; solar system ER - TY - JOUR T1 - What does the fine-scale petrography of IDPs reveal about grain formation and evolution in the early solar system? AN - 51055284; 1996-046142 JF - LPI Technical Report AU - Bradley, J A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 12 EP - 13 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - silicates KW - solar system KW - olivine group KW - cosmochemistry KW - interplanetary dust KW - nesosilicates KW - genesis KW - pyroxene group KW - mineral composition KW - olivine KW - orthosilicates KW - petrography KW - particles KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51055284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=What+does+the+fine-scale+petrography+of+IDPs+reveal+about+grain+formation+and+evolution+in+the+early+solar+system%3F&rft.au=Bradley%2C+J&rft.aulast=Bradley&rft.aufirst=J&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chain silicates; cosmochemistry; genesis; interplanetary dust; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; particles; petrography; pyroxene group; silicates; solar system ER - TY - JOUR T1 - Description of the COMRADE experiment AN - 51055238; 1996-046141 JF - LPI Technical Report AU - Borg, J AU - Maag, C AU - Bibring, J P AU - Tanner, W AU - Alexander, M A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 11 EP - 12 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - genesis KW - solar system KW - programs KW - experimental studies KW - chemical analysis KW - Collection of Micrometeorites, Residue, and Debris Ejecta KW - sampling KW - orbital observations KW - COMRADE KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51055238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Description+of+the+COMRADE+experiment&rft.au=Borg%2C+J%3BMaag%2C+C%3BBibring%2C+J+P%3BTanner%2C+W%3BAlexander%2C+M&rft.aulast=Borg&rft.aufirst=J&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical analysis; Collection of Micrometeorites, Residue, and Debris Ejecta; COMRADE; experimental studies; genesis; interplanetary dust; orbital observations; particles; programs; sampling; solar system ER - TY - JOUR T1 - Changes in IDP mineralogy and composition by terrestrial factors AN - 51055181; 1996-046121 JF - LPI Technical Report AU - Flynn, G J A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 19 EP - 21 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - mineral composition KW - factors KW - isotopes KW - volatile elements KW - atmosphere KW - deceleration KW - transformations KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51055181?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Changes+in+IDP+mineralogy+and+composition+by+terrestrial+factors&rft.au=Flynn%2C+G+J&rft.aulast=Flynn&rft.aufirst=G&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 31 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; deceleration; factors; interplanetary dust; isotopes; mineral composition; particles; transformations; volatile elements ER - TY - JOUR T1 - Solar energetic particle track densities as an indicator of the origin of interplanetary dust AN - 51054811; 1996-046140 JF - LPI Technical Report AU - Blanford, G E A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 9 EP - 11 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - genesis KW - solar energetic particles KW - velocity KW - indicators KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Solar+energetic+particle+track+densities+as+an+indicator+of+the+origin+of+interplanetary+dust&rft.au=Blanford%2C+G+E&rft.aulast=Blanford&rft.aufirst=G&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - genesis; indicators; interplanetary dust; particles; solar energetic particles; velocity ER - TY - JOUR T1 - Origin of the hydrocarbon component of interplanetary dust particles AN - 51054534; 1996-046135 JF - LPI Technical Report AU - Wdowiak, T J AU - Lee, W A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 50 EP - 52 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - organic materials KW - experimental studies KW - stony meteorites KW - naphthalene KW - cosmochemistry KW - carbonaceous chondrites KW - interplanetary dust KW - infrared spectra KW - genesis KW - meteorites KW - organic compounds KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - spectra KW - chondrites KW - particles KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Origin+of+the+hydrocarbon+component+of+interplanetary+dust+particles&rft.au=Wdowiak%2C+T+J%3BLee%2C+W&rft.aulast=Wdowiak&rft.aufirst=T&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=50&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; carbonaceous chondrites; chondrites; cosmochemistry; experimental studies; genesis; hydrocarbons; infrared spectra; interplanetary dust; meteorites; naphthalene; organic compounds; organic materials; particles; polycyclic aromatic hydrocarbons; spectra; stony meteorites ER - TY - JOUR T1 - Compositional variations of olivines and pyroxenes in chondritic interplanetary dust particles AN - 51054528; 1996-046137 JF - LPI Technical Report AU - Zolensky, M AU - Barrett, R A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 54 EP - 56 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - silicates KW - serpentine KW - alteration KW - stony meteorites KW - saponite KW - parent bodies KW - olivine group KW - interplanetary dust KW - clay minerals KW - nesosilicates KW - meteorites KW - pyroxene group KW - serpentine group KW - olivine KW - orthosilicates KW - sheet silicates KW - crystal chemistry KW - chondrites KW - particles KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054528?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Compositional+variations+of+olivines+and+pyroxenes+in+chondritic+interplanetary+dust+particles&rft.au=Zolensky%2C+M%3BBarrett%2C+R&rft.aulast=Zolensky&rft.aufirst=M&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 17 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alteration; chain silicates; chondrites; clay minerals; crystal chemistry; interplanetary dust; meteorites; nesosilicates; olivine; olivine group; orthosilicates; parent bodies; particles; pyroxene group; saponite; serpentine; serpentine group; sheet silicates; silicates; stony meteorites ER - TY - JOUR T1 - Carbon in primitive interplanetary dust particles AN - 51054498; 1996-046126 JF - LPI Technical Report AU - Keller, L P AU - Thomas, K L AU - McKay, D S A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 30 EP - 31 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - solar system KW - volatile elements KW - carbon KW - cosmochemistry KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Carbon+in+primitive+interplanetary+dust+particles&rft.au=Keller%2C+L+P%3BThomas%2C+K+L%3BMcKay%2C+D+S&rft.aulast=Keller&rft.aufirst=L&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon; cosmochemistry; interplanetary dust; particles; solar system; volatile elements ER - TY - JOUR T1 - Collection and curation of IDPs in the stratosphere and below; Part 2, The Greenland and Antarctic ice sheets AN - 51054490; 1996-046129 AB - The recovery of unmelted to partially melted 50-400 mu m-sized IDP's (interplanetary dust particles) from the Greenland and antarctic ice sheets is described. Ice samples are melted in the field by steam generators and pumped through sieves to obtain IDPs. More than 40,000 IDPs have been recovered from 360 tons of ice at Cap Prudhomme, Antarctica, grouped in four size fractions (25-50, 50-100, 100-400, and 400 mu m), but mostly in the 50-100 mu m-size fraction, and are now stored at CSNSM (Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse) in Orsay, France. This is the purest and richest sample of IDPs ever extracted from terrestrial sediments. JF - LPI Technical Report AU - Maurette, M AU - Hammer, C AU - Harvey, R AU - Immel, G AU - Kurat, G AU - Taylor, S A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 36 EP - 40 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - programs KW - stony meteorites KW - Arctic region KW - Greenland ice sheet KW - interplanetary dust KW - Antarctic ice sheet KW - meteorites KW - Greenland KW - Antarctica KW - stratosphere KW - sampling KW - cryoconite KW - sediments KW - occurrence KW - chondrites KW - particles KW - spherules KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054490?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Collection+and+curation+of+IDPs+in+the+stratosphere+and+below%3B+Part+2%2C+The+Greenland+and+Antarctic+ice+sheets&rft.au=Maurette%2C+M%3BHammer%2C+C%3BHarvey%2C+R%3BImmel%2C+G%3BKurat%2C+G%3BTaylor%2C+S&rft.aulast=Maurette&rft.aufirst=M&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1996-01-01 N1 - Number of references - 24 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Antarctic ice sheet; Antarctica; Arctic region; chondrites; cryoconite; Greenland; Greenland ice sheet; interplanetary dust; meteorites; occurrence; particles; programs; sampling; sediments; spherules; stony meteorites; stratosphere ER - TY - JOUR T1 - Quantitative analyses of carbon in anhydrous and and hydrated interplanetary dust particles AN - 51054458; 1996-046134 JF - LPI Technical Report AU - Thomas, K L AU - Keller, L P AU - Blanford, G E AU - McKay, D S A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 49 EP - 50 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - quantitative analysis KW - carbon KW - cosmochemistry KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Quantitative+analyses+of+carbon+in+anhydrous+and+and+hydrated+interplanetary+dust+particles&rft.au=Thomas%2C+K+L%3BKeller%2C+L+P%3BBlanford%2C+G+E%3BMcKay%2C+D+S&rft.aulast=Thomas&rft.aufirst=K&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon; cosmochemistry; interplanetary dust; particles; quantitative analysis ER - TY - JOUR T1 - Remote sensing of cometary dust and comparisons to IDPs AN - 51054421; 1996-046124 JF - LPI Technical Report AU - Hanner, M S A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 24 EP - 26 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - solar nebula KW - comets KW - volatile elements KW - cosmochemistry KW - spectra KW - interplanetary dust KW - particles KW - remote sensing KW - infrared spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Remote+sensing+of+cometary+dust+and+comparisons+to+IDPs&rft.au=Hanner%2C+M+S&rft.aulast=Hanner&rft.aufirst=M&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 34 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - comets; cosmochemistry; infrared spectra; interplanetary dust; particles; remote sensing; solar nebula; spectra; volatile elements ER - TY - JOUR T1 - An assessment of the contamination acquired by IDPs during atmospheric deceleration AN - 51054223; 1996-046120 JF - LPI Technical Report AU - Flynn, G J A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 18 EP - 19 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - zinc KW - volatile elements KW - metals KW - mesosphere KW - atmosphere KW - water vapor KW - deceleration KW - cosmochemistry KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=An+assessment+of+the+contamination+acquired+by+IDPs+during+atmospheric+deceleration&rft.au=Flynn%2C+G+J&rft.aulast=Flynn&rft.aufirst=G&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; cosmochemistry; deceleration; interplanetary dust; mesosphere; metals; particles; volatile elements; water vapor; zinc ER - TY - JOUR T1 - LDEF meteoroid and debris database AN - 51054187; 1996-046117 JF - LPI Technical Report AU - Dardano, C B AU - See, T H AU - Zolensky, M E A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 14 EP - 15 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - imagery KW - debris KW - data processing KW - data bases KW - CD-ROM KW - meteoroids KW - impacts KW - interplanetary dust KW - particles KW - Long Duration Exposure Facility KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=LDEF+meteoroid+and+debris+database&rft.au=Dardano%2C+C+B%3BSee%2C+T+H%3BZolensky%2C+M+E&rft.aulast=Dardano&rft.aufirst=C&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - CD-ROM; data bases; data processing; debris; imagery; impacts; interplanetary dust; Long Duration Exposure Facility; meteoroids; particles ER - TY - JOUR T1 - Chemical compositions of primitive solar system particles AN - 51054115; 1996-046133 JF - LPI Technical Report AU - Sutton, S R AU - Bajt, S A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 47 EP - 49 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - solar system KW - micrometeorites KW - meteorites KW - stratosphere KW - major elements KW - volatile elements KW - cosmochemistry KW - trace elements KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Chemical+compositions+of+primitive+solar+system+particles&rft.au=Sutton%2C+S+R%3BBajt%2C+S&rft.aulast=Sutton&rft.aufirst=S&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - cosmochemistry; interplanetary dust; major elements; meteorites; micrometeorites; particles; solar system; stratosphere; trace elements; volatile elements ER - TY - JOUR T1 - (super 6) Li/ (super 7) Li, (super 10) B/ (super 11) B, and (super 7) Li/ (super 11) B/ (super 28) Si individual IDPs AN - 51054106; 1996-046136 JF - LPI Technical Report AU - Xu, Y L AU - Song, L G AU - Zhang, Y X AU - Fan, C Y A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 52 EP - 54 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - experimental studies KW - isotopes KW - lithium KW - isotope ratios KW - Si-28/B-11/Li-7 KW - alkali metals KW - cosmochemistry KW - silicon KW - interplanetary dust KW - stable isotopes KW - metals KW - B-11/B-10 KW - boron KW - particles KW - Li-7/Li-6 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51054106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.genre=dissertations+%26+theses&rft.jtitle=&rft.atitle=&rft.au=Krival%2C+Kate&rft.aulast=Krival&rft.aufirst=Kate&rft.date=2007-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=9780549220695&rft.btitle=&rft.title=Effects+of+carbonated+vs.+thin+and+thickened+liquids+on+swallowing+in+adults+with+neurogenic+oropharyngeal+dysphagia&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; B-11/B-10; boron; cosmochemistry; experimental studies; interplanetary dust; isotope ratios; isotopes; Li-7/Li-6; lithium; metals; particles; Si-28/B-11/Li-7; silicon; stable isotopes ER - TY - JOUR T1 - Some considerations on velocity vector accuracy in dust trajectory analysis AN - 51053620; 1996-046125 JF - LPI Technical Report AU - Jackson, A A AU - Zook, H A A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 27 EP - 30 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - gravity field KW - errors KW - comets KW - asteroids KW - parent bodies KW - velocity KW - effects KW - orbital observations KW - interplanetary dust KW - accuracy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51053620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Some+considerations+on+velocity+vector+accuracy+in+dust+trajectory+analysis&rft.au=Jackson%2C+A+A%3BZook%2C+H+A&rft.aulast=Jackson&rft.aufirst=A&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; asteroids; comets; effects; errors; gravity field; interplanetary dust; orbital observations; parent bodies; velocity ER - TY - JOUR T1 - Carbon in Comet Halley dust particles AN - 51053574; 1996-046123 JF - LPI Technical Report AU - Fomenkova, M AU - Chang, S A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 22 EP - 24 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - organic materials KW - organic compounds KW - comets KW - Halley's Comet KW - volatile elements KW - carbon KW - hydrocarbons KW - cosmochemistry KW - interplanetary dust KW - particles KW - comae KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51053574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Carbon+in+Comet+Halley+dust+particles&rft.au=Fomenkova%2C+M%3BChang%2C+S&rft.aulast=Fomenkova&rft.aufirst=M&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=22&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon; comae; comets; cosmochemistry; Halley's Comet; hydrocarbons; interplanetary dust; organic compounds; organic materials; particles; volatile elements ER - TY - JOUR T1 - Collection and curation of interplanetary dust particles recovered from the stratosphere AN - 51053182; 1996-046138 JF - LPI Technical Report AU - Zolensky, M E AU - Warren, J L A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 56 EP - 57 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - curation KW - sample preparation KW - Johnson Space Center KW - stratosphere KW - NASA KW - government agencies KW - interplanetary dust KW - particles KW - collections KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51053182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Collection+and+curation+of+interplanetary+dust+particles+recovered+from+the+stratosphere&rft.au=Zolensky%2C+M+E%3BWarren%2C+J+L&rft.aulast=Zolensky&rft.aufirst=M&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - collections; curation; government agencies; interplanetary dust; Johnson Space Center; NASA; particles; sample preparation; stratosphere ER - TY - JOUR T1 - Solar system exposure histories of interplanetary dust particles AN - 51053152; 1996-046130 JF - LPI Technical Report AU - Nier, A O A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 40 EP - 43 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - solar system KW - isotopes KW - isotope ratios KW - solar wind KW - cosmochemistry KW - interplanetary dust KW - exposure age KW - stable isotopes KW - sampling KW - noble gases KW - helium KW - He-4/He-3 KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51053152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Solar+system+exposure+histories+of+interplanetary+dust+particles&rft.au=Nier%2C+A+O&rft.aulast=Nier&rft.aufirst=A&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 28 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - cosmochemistry; exposure age; He-4/He-3; helium; interplanetary dust; isotope ratios; isotopes; noble gases; particles; sampling; solar system; solar wind; stable isotopes ER - TY - JOUR T1 - Cometary dust; a thermal criterion to identify cometary samples among the collected interplanetary dust AN - 51053103; 1996-046122 JF - LPI Technical Report AU - Flynn, G J A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 21 EP - 22 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - comets KW - asteroids KW - identification KW - classification KW - atmosphere KW - thermal history KW - interplanetary dust KW - particles KW - temperature KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51053103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Cometary+dust%3B+a+thermal+criterion+to+identify+cometary+samples+among+the+collected+interplanetary+dust&rft.au=Flynn%2C+G+J&rft.aulast=Flynn&rft.aufirst=G&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; atmosphere; classification; comets; identification; interplanetary dust; particles; temperature; thermal history ER - TY - JOUR T1 - Mineralogical and chemical relationships of interplanetary dust particles, micrometeorites, and meteorites AN - 51053086; 1996-046127 JF - LPI Technical Report AU - Kloeck, W AU - Stadermann, F J A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 31 EP - 34 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - silicates KW - stony meteorites KW - calcium-aluminum inclusions KW - olivine group KW - cosmochemistry KW - interplanetary dust KW - achondrites KW - nesosilicates KW - micrometeorites KW - meteorites KW - mineral composition KW - Antarctica KW - olivine KW - inclusions KW - orthosilicates KW - trace elements KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51053086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Mineralogical+and+chemical+relationships+of+interplanetary+dust+particles%2C+micrometeorites%2C+and+meteorites&rft.au=Kloeck%2C+W%3BStadermann%2C+F+J&rft.aulast=Kloeck&rft.aufirst=W&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 34 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; calcium-aluminum inclusions; cosmochemistry; inclusions; interplanetary dust; meteorites; micrometeorites; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; particles; silicates; stony meteorites; trace elements ER - TY - JOUR T1 - Further analysis of remnants found in LDEF and Mir impact craters AN - 51052657; 1996-046116 JF - LPI Technical Report AU - Berthoud, S L AU - Mandeville, J C A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 5 EP - 9 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - impact features KW - extraterrestrial geology KW - impact craters KW - spectra KW - impacts KW - interplanetary dust KW - particles KW - Long Duration Exposure Facility KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51052657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Further+analysis+of+remnants+found+in+LDEF+and+Mir+impact+craters&rft.au=Berthoud%2C+S+L%3BMandeville%2C+J+C&rft.aulast=Berthoud&rft.aufirst=S&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - extraterrestrial geology; impact craters; impact features; impacts; interplanetary dust; Long Duration Exposure Facility; particles; spectra ER - TY - JOUR T1 - (super 6) Li/ (super 7) Li, (super 10) B/ (super 11) B and (super 7) Li/ (super 11) B/ (super 28) Si in individual interplanetary dust particles AN - 50966856; 1994-046437 JF - AIP Conference Proceedings AU - Xu, Yin-Lin AU - Song, Ling-Gen AU - Zhang, Yongxia AU - Fan, C Y A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 211 EP - 222 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - solar system KW - ion probe data KW - isotopes KW - lithium KW - alkali metals KW - mass spectra KW - silicon KW - interplanetary dust KW - stable isotopes KW - evolution KW - solar nebula KW - metals KW - B-11/B-10 KW - parent materials KW - boron KW - spectra KW - chemical composition KW - particles KW - Li-7/Li-6 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50966856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=%28super+6%29+Li%2F+%28super+7%29+Li%2C+%28super+10%29+B%2F+%28super+11%29+B+and+%28super+7%29+Li%2F+%28super+11%29+B%2F+%28super+28%29+Si+in+individual+interplanetary+dust+particles&rft.au=Xu%2C+Yin-Lin%3BSong%2C+Ling-Gen%3BZhang%2C+Yongxia%3BFan%2C+C+Y&rft.aulast=Xu&rft.aufirst=Yin-Lin&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=211&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 7 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 plate, 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - alkali metals; B-11/B-10; boron; chemical composition; evolution; interplanetary dust; ion probe data; isotopes; Li-7/Li-6; lithium; mass spectra; metals; parent materials; particles; silicon; solar nebula; solar system; spectra; stable isotopes ER - TY - JOUR T1 - Meteoroid investigations using the Long Duration Exposure Facility AN - 50966393; 1994-046440 JF - AIP Conference Proceedings AU - Zolensky, Michael E AU - Hoerz, Friedrich AU - See, Thomas H AU - Bernhard, Ronald P AU - Dardano, Claire AU - Barrett, Ruth A AU - Mack, Kimberly AU - Warren, Jack L AU - Kinard, William H A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 291 EP - 304 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - impacts KW - X-ray spectra KW - TEM data KW - Long Duration Exposure Facility KW - meteorites KW - stratosphere KW - sampling KW - spectra KW - orbital observations KW - satellites KW - chemical composition KW - Columbia Program KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50966393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Meteoroid+investigations+using+the+Long+Duration+Exposure+Facility&rft.au=Zolensky%2C+Michael+E%3BHoerz%2C+Friedrich%3BSee%2C+Thomas+H%3BBernhard%2C+Ronald+P%3BDardano%2C+Claire%3BBarrett%2C+Ruth+A%3BMack%2C+Kimberly%3BWarren%2C+Jack+L%3BKinard%2C+William+H&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=291&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 23 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 plates N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - chemical composition; Columbia Program; impacts; Long Duration Exposure Facility; meteorites; orbital observations; sampling; satellites; spectra; stratosphere; TEM data; X-ray spectra ER - TY - JOUR T1 - Analysis of remnants found in LDEF and Mir impact craters AN - 50965880; 1994-046441 JF - AIP Conference Proceedings AU - Berthoud, L AU - Mandeville, J C A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 313 EP - 328 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - Yakutia Russian Federation KW - Russian Federation KW - impacts KW - satellite methods KW - interplanetary dust KW - X-ray spectra KW - Long Duration Exposure Facility KW - micrometeorites KW - meteorites KW - Mir Structure KW - Commonwealth of Independent States KW - stratosphere KW - sampling KW - spectra KW - chemical composition KW - Asia KW - Aragatz Program KW - particles KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50965880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Analysis+of+remnants+found+in+LDEF+and+Mir+impact+craters&rft.au=Berthoud%2C+L%3BMandeville%2C+J+C&rft.aulast=Berthoud&rft.aufirst=L&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=313&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 9 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 plates N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - Aragatz Program; Asia; chemical composition; Commonwealth of Independent States; impacts; interplanetary dust; Long Duration Exposure Facility; meteorites; micrometeorites; Mir Structure; particles; Russian Federation; sampling; satellite methods; spectra; stratosphere; X-ray spectra; Yakutia Russian Federation ER - TY - JOUR T1 - Carbon in Comet Halley dust particles AN - 50965669; 1994-046435 JF - AIP Conference Proceedings AU - Fomenkova, Marina AU - Chang, Sherwood A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 193 EP - 202 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - carbonaceous composition KW - solar system KW - mass spectra KW - mass spectroscopy KW - interplanetary space KW - interplanetary dust KW - genesis KW - volatiles KW - comets KW - Halley's Comet KW - carbon KW - spectra KW - chemical composition KW - spectroscopy KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50965669?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Carbon+in+Comet+Halley+dust+particles&rft.au=Fomenkova%2C+Marina%3BChang%2C+Sherwood&rft.aulast=Fomenkova&rft.aufirst=Marina&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=193&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 39 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - carbon; carbonaceous composition; chemical composition; comets; genesis; Halley's Comet; interplanetary dust; interplanetary space; mass spectra; mass spectroscopy; particles; solar system; spectra; spectroscopy; volatiles ER - TY - JOUR T1 - Olivine and pyroxene compositions of chondritic interplanetary dust particles AN - 50965332; 1994-046427 JF - AIP Conference Proceedings AU - Zolensky, Michael E AU - Barrett, Ruth A A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 105 EP - 114 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - silicates KW - stony meteorites KW - olivine group KW - interplanetary dust KW - nesosilicates KW - genesis KW - meteorites KW - pyroxene group KW - mineral composition KW - orthosilicates KW - petrography KW - fabric KW - chondrites KW - particles KW - chain silicates KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50965332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Olivine+and+pyroxene+compositions+of+chondritic+interplanetary+dust+particles&rft.au=Zolensky%2C+Michael+E%3BBarrett%2C+Ruth+A&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=105&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 28 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 plate N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - chain silicates; chondrites; fabric; genesis; interplanetary dust; meteorites; mineral composition; nesosilicates; olivine group; orthosilicates; particles; petrography; pyroxene group; silicates; stony meteorites ER - TY - JOUR T1 - A proposal for a petrological classification scheme of carbonaceous chondritic micrometeorites AN - 50965112; 1994-046439 JF - AIP Conference Proceedings AU - Rietmeijer, Frans J M A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 231 EP - 240 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - silicates KW - carbonaceous composition KW - solar system KW - stony meteorites KW - isotopes KW - textures KW - olivine group KW - interplanetary dust KW - nesosilicates KW - micrometeorites KW - meteorites KW - pyroxene group KW - mineral composition KW - carbon KW - classification KW - orthosilicates KW - petrography KW - chondrites KW - fractionation KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50965112?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=A+proposal+for+a+petrological+classification+scheme+of+carbonaceous+chondritic+micrometeorites&rft.au=Rietmeijer%2C+Frans+J+M&rft.aulast=Rietmeijer&rft.aufirst=Frans+J&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=231&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 41 N1 - PubXState - NY N1 - Document feature - 1 table, 1 plate N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - carbon; carbonaceous composition; chain silicates; chondrites; classification; fractionation; interplanetary dust; isotopes; meteorites; micrometeorites; mineral composition; nesosilicates; olivine group; orthosilicates; petrography; pyroxene group; silicates; solar system; stony meteorites; textures ER - TY - JOUR T1 - Volatiles in interplanetary dust particles; a comparison with volatile-rich meteorites AN - 50965086; 1994-046433 JF - AIP Conference Proceedings AU - Gibson, Everett K, Jr AU - Bustin, Roberta A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 173 EP - 184 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - laser microprobe data KW - stony meteorites KW - parent bodies KW - mass spectra KW - mass spectroscopy KW - thermal history KW - interplanetary dust KW - genesis KW - meteorites KW - volatiles KW - major elements KW - spectra KW - chondrites KW - chemical composition KW - spectroscopy KW - particles KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50965086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Volatiles+in+interplanetary+dust+particles%3B+a+comparison+with+volatile-rich+meteorites&rft.au=Gibson%2C+Everett+K%2C+Jr%3BBustin%2C+Roberta&rft.aulast=Gibson&rft.aufirst=Everett&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=173&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 15 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - chemical composition; chondrites; genesis; interplanetary dust; laser microprobe data; major elements; mass spectra; mass spectroscopy; meteorites; parent bodies; particles; spectra; spectroscopy; stony meteorites; thermal history; volatiles ER - TY - JOUR T1 - Mechanisms of grain formation, post-accretional alteration, and likely parent body environments of interplanetary dust particles (IDPs) AN - 50965027; 1994-046426 JF - AIP Conference Proceedings AU - Bradley, John P A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 89 EP - 104 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - silicates KW - alteration KW - petrology KW - asteroids KW - parent bodies KW - interplanetary dust KW - infrared spectra KW - genesis KW - micrometeorites KW - meteorites KW - pyroxene group KW - mineral composition KW - comets KW - stratosphere KW - grains KW - spectra KW - orthopyroxene KW - fabric KW - reflectance KW - particles KW - enstatite KW - chain silicates KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50965027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Mechanisms+of+grain+formation%2C+post-accretional+alteration%2C+and+likely+parent+body+environments+of+interplanetary+dust+particles+%28IDPs%29&rft.au=Bradley%2C+John+P&rft.aulast=Bradley&rft.aufirst=John&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=89&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 55 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 plates N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - alteration; asteroids; chain silicates; comets; enstatite; fabric; genesis; grains; infrared spectra; interplanetary dust; meteorites; micrometeorites; mineral composition; orthopyroxene; parent bodies; particles; petrology; pyroxene group; reflectance; silicates; spectra; stratosphere ER - TY - JOUR T1 - Volcanism and levitation; unusual origins of interplanetary dust AN - 50963799; 1994-046424 JF - AIP Conference Proceedings AU - Wilson, Thomas L A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 33 EP - 44 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - numerical models KW - levitation KW - asteroids KW - mechanism KW - impacts KW - interplanetary dust KW - ejecta KW - magnetic field KW - genesis KW - gravity field KW - comets KW - eruptions KW - volcanoes KW - velocity KW - volcanic ash KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50963799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Volcanism+and+levitation%3B+unusual+origins+of+interplanetary+dust&rft.au=Wilson%2C+Thomas+L&rft.aulast=Wilson&rft.aufirst=Thomas&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=33&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 34 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - asteroids; comets; ejecta; eruptions; genesis; gravity field; impacts; interplanetary dust; levitation; magnetic field; mechanism; numerical models; particles; velocity; volcanic ash; volcanoes ER - TY - JOUR T1 - Isotopic constraints on interstellar material in chondritic IDPs AN - 50963377; 1994-046436 JF - AIP Conference Proceedings AU - Walker, Robert M A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 203 EP - 210 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - solar system KW - oxygen KW - ion probe data KW - isotopes KW - mass spectra KW - native elements KW - interplanetary dust KW - chondritic composition KW - infrared spectra KW - models KW - genesis KW - meteorites KW - graphite KW - hydrogen KW - carbon KW - interstellar materials KW - spectra KW - chemical composition KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50963377?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Isotopic+constraints+on+interstellar+material+in+chondritic+IDPs&rft.au=Walker%2C+Robert+M&rft.aulast=Walker&rft.aufirst=Robert&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=203&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 35 N1 - PubXState - NY N1 - Document feature - 1 plate N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - carbon; chemical composition; chondritic composition; genesis; graphite; hydrogen; infrared spectra; interplanetary dust; interstellar materials; ion probe data; isotopes; mass spectra; meteorites; models; native elements; oxygen; particles; solar system; spectra ER - TY - JOUR T1 - Origin of the hydrocarbon component of interplanetary dust particles AN - 50963053; 1994-046434 JF - AIP Conference Proceedings AU - Wdowiak, Thomas J AU - Lee, Wei A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 185 EP - 192 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - organic materials KW - stony meteorites KW - parent bodies KW - carbonaceous chondrites KW - interplanetary dust KW - infrared spectra KW - genesis KW - meteorites KW - organic compounds KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - applications KW - spectra KW - chondrites KW - chemical composition KW - particles KW - aromatic hydrocarbons KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50963053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Origin+of+the+hydrocarbon+component+of+interplanetary+dust+particles&rft.au=Wdowiak%2C+Thomas+J%3BLee%2C+Wei&rft.aulast=Wdowiak&rft.aufirst=Thomas&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=185&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 12 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 plate N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - applications; aromatic hydrocarbons; carbonaceous chondrites; chemical composition; chondrites; genesis; hydrocarbons; infrared spectra; interplanetary dust; meteorites; organic compounds; organic materials; parent bodies; particles; polycyclic aromatic hydrocarbons; spectra; stony meteorites ER - TY - JOUR T1 - Remote sensing of cometary dust and comparisons to IDPs AN - 50962172; 1994-046423 JF - AIP Conference Proceedings AU - Hanner, M S A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 23 EP - 32 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - comets KW - Halley's Comet KW - spectra KW - impacts KW - chemical composition KW - interplanetary dust KW - particles KW - remote sensing KW - infrared spectra KW - emission spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50962172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Remote+sensing+of+cometary+dust+and+comparisons+to+IDPs&rft.au=Hanner%2C+M+S&rft.aulast=Hanner&rft.aufirst=M&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=23&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 42 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - chemical composition; comets; emission spectra; Halley's Comet; impacts; infrared spectra; interplanetary dust; particles; remote sensing; spectra ER - TY - JOUR T1 - Chemical compositions of primitive solar system particles AN - 50961897; 1994-046430 JF - AIP Conference Proceedings AU - Sutton, S R A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 145 EP - 158 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - genesis KW - solar system KW - micrometeorites KW - meteorites KW - X-ray data KW - stratosphere KW - stony meteorites KW - carbonaceous chondrites KW - chondrites KW - chemical composition KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50961897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Chemical+compositions+of+primitive+solar+system+particles&rft.au=Sutton%2C+S+R&rft.aulast=Sutton&rft.aufirst=S&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=145&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 25 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 plate N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chemical composition; chondrites; genesis; meteorites; micrometeorites; solar system; stony meteorites; stratosphere; X-ray data ER - TY - JOUR T1 - The origin and role of dust in the early solar system AN - 50961863; 1994-046421 JF - AIP Conference Proceedings AU - Brownlee, Don A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 5 EP - 8 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - solar nebula KW - genesis KW - solar system KW - comets KW - accretion KW - asteroids KW - movement KW - planetesimals KW - interplanetary dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50961863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=The+origin+and+role+of+dust+in+the+early+solar+system&rft.au=Brownlee%2C+Don&rft.aulast=Brownlee&rft.aufirst=Don&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=5&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 22 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - accretion; asteroids; comets; genesis; interplanetary dust; movement; planetesimals; solar nebula; solar system ER - TY - JOUR T1 - Carbon in primitive interplanetary dust particles AN - 50961506; 1994-046431 JF - AIP Conference Proceedings AU - Keller, Lindsay P AU - Thomas, Kathie L AU - McKay, David S A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 159 EP - 164 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - carbonaceous composition KW - solar system KW - stony meteorites KW - parent bodies KW - thermal history KW - interplanetary dust KW - genesis KW - meteorites KW - carbon KW - chondrites KW - chemical composition KW - particles KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50961506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Carbon+in+primitive+interplanetary+dust+particles&rft.au=Keller%2C+Lindsay+P%3BThomas%2C+Kathie+L%3BMcKay%2C+David+S&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=159&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 16 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - carbon; carbonaceous composition; chemical composition; chondrites; genesis; interplanetary dust; meteorites; parent bodies; particles; solar system; stony meteorites; thermal history ER - TY - JOUR T1 - Detection of asteroidal dust particles from known families in near-Earth orbits AN - 50961358; 1994-046422 JF - AIP Conference Proceedings AU - Dermott, S F AU - Liou, J C A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 13 EP - 21 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - asteroids KW - asteroid belts KW - identification KW - Eos KW - Themis KW - orbital observations KW - Koronis KW - interplanetary dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50961358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Detection+of+asteroidal+dust+particles+from+known+families+in+near-Earth+orbits&rft.au=Dermott%2C+S+F%3BLiou%2C+J+C&rft.aulast=Dermott&rft.aufirst=S&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=13&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 4 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 plate N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - asteroid belts; asteroids; Eos; identification; interplanetary dust; Koronis; orbital observations; Themis ER - TY - JOUR T1 - AIP conference, NASA/LPI workshop Institute AN - 50961135; 1994-046420 JF - AIP Conference Proceedings A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 357 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - solar system KW - symposia KW - current research KW - interplanetary dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50961135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=AIP+Conference+Proceedings&rft.atitle=AIP+conference%2C+NASA%2FLPI+workshop+Institute&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - NY N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - current research; interplanetary dust; solar system; symposia ER - TY - JOUR T1 - Mineralogical and chemical relationships of interplanetary dust particles, micrometeorites and meteorites AN - 50960904; 1994-046425 JF - AIP Conference Proceedings AU - Kloeck, W AU - Stadermann, F J A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 51 EP - 88 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - silicates KW - thermal alteration KW - olivine group KW - interplanetary dust KW - TEM data KW - infrared spectra KW - forsterite KW - nesosilicates KW - micrometeorites KW - meteorites KW - mineral composition KW - orthosilicates KW - spectra KW - chemical composition KW - particles KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50960904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Mineralogical+and+chemical+relationships+of+interplanetary+dust+particles%2C+micrometeorites+and+meteorites&rft.au=Kloeck%2C+W%3BStadermann%2C+F+J&rft.aulast=Kloeck&rft.aufirst=W&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=51&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 77 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, 16 plates N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - chemical composition; forsterite; infrared spectra; interplanetary dust; meteorites; micrometeorites; mineral composition; nesosilicates; olivine group; orthosilicates; particles; silicates; spectra; TEM data; thermal alteration ER - TY - JOUR T1 - Quantitative analyses of carbon in anhydrous and hydrated interplanetary dust particles AN - 50960798; 1994-046432 JF - AIP Conference Proceedings AU - Thomas, Kathie L AU - Keller, Lindsay P AU - Blanford, G E AU - McKay, David S A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 165 EP - 172 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - vesicular texture KW - laboratory studies KW - oxygen KW - minor elements KW - major elements KW - textures KW - carbon KW - chemical composition KW - interplanetary dust KW - SEM data KW - contamination KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50960798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Quantitative+analyses+of+carbon+in+anhydrous+and+hydrated+interplanetary+dust+particles&rft.au=Thomas%2C+Kathie+L%3BKeller%2C+Lindsay+P%3BBlanford%2C+G+E%3BMcKay%2C+David+S&rft.aulast=Thomas&rft.aufirst=Kathie&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=165&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 16 N1 - PubXState - NY N1 - Document feature - 2 plates, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - carbon; chemical composition; contamination; interplanetary dust; laboratory studies; major elements; minor elements; oxygen; SEM data; textures; vesicular texture ER - TY - JOUR T1 - Changes to the composition and mineralogy of interplanetary dust particles by terrestrial encounters AN - 50960531; 1994-046429 JF - AIP Conference Proceedings AU - Flynn, G J A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 127 EP - 144 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - alteration KW - asteroids KW - isotopes KW - parent bodies KW - fracturing KW - interplanetary dust KW - genesis KW - mineral composition KW - comets KW - stratosphere KW - sampling KW - noble gases KW - velocity KW - heating KW - chemical composition KW - particles KW - fractionation KW - contamination KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50960531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Changes+to+the+composition+and+mineralogy+of+interplanetary+dust+particles+by+terrestrial+encounters&rft.au=Flynn%2C+G+J&rft.aulast=Flynn&rft.aufirst=G&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=127&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 50 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 plates, 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - alteration; asteroids; chemical composition; comets; contamination; fractionation; fracturing; genesis; heating; interplanetary dust; isotopes; mineral composition; noble gases; parent bodies; particles; sampling; stratosphere; velocity ER - TY - JOUR T1 - Helium and neon in interplanetary dust particles AN - 50960482; 1994-046428 JF - AIP Conference Proceedings AU - Nier, Alfred O A2 - Zolensky, Michael E. A2 - Wilson, Thomas L. A2 - Rietmeijer, Frans J. M. A2 - Flynn, G. J. Y1 - 1994 PY - 1994 DA - 1994 SP - 115 EP - 126 PB - American Institute of Physics, New York, NY VL - 310 SN - 0094-243X, 0094-243X KW - alteration KW - isotopes KW - isotope ratios KW - interplanetary dust KW - stable isotopes KW - gases KW - genesis KW - comets KW - stratosphere KW - noble gases KW - neon KW - velocity KW - heating KW - helium KW - He-4/He-3 KW - chemical composition KW - particles KW - degassing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50960482?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=AIP+Conference+Proceedings&rft.atitle=Helium+and+neon+in+interplanetary+dust+particles&rft.au=Nier%2C+Alfred+O&rft.aulast=Nier&rft.aufirst=Alfred&rft.date=1994-01-01&rft.volume=310&rft.issue=&rft.spage=115&rft.isbn=1563963418&rft.btitle=&rft.title=AIP+Conference+Proceedings&rft.issn=0094243X&rft_id=info:doi/ L2 - http://proceedings.aip.org/proceedings/ LA - English DB - GeoRef N1 - Conference title - AIP conference, NASA/LPI workshop Institute N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 34 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - APCPCS N1 - SubjectsTermNotLitGenreText - alteration; chemical composition; comets; degassing; gases; genesis; He-4/He-3; heating; helium; interplanetary dust; isotope ratios; isotopes; neon; noble gases; particles; stable isotopes; stratosphere; velocity ER - TY - JOUR T1 - Workshop on the Martian northern plains; sedimentological, periglacial, and paleoclimatic evolution AN - 50339862; 1994-025915 JF - LPI Technical Report A2 - Kargel, Jeff S. A2 - Parker, Timothy J. A2 - Moore, Jeff M. Y1 - 1994 PY - 1994 DA - 1994 SP - 8 PB - Lunar and Planetary Institute, Houston, TX VL - 93-04, Part 2 SN - 0730-966X, 0730-966X KW - terrestrial planets KW - planets KW - symposia KW - surface features KW - sedimentology KW - plains KW - Mars KW - periglacial features KW - glacial geology KW - paleoclimatology KW - evolution KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50339862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=LPI+Technical+Report&rft.atitle=Workshop+on+the+Martian+northern+plains%3B+sedimentological%2C+periglacial%2C+and+paleoclimatic+evolution&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1994-01-01&rft.volume=93-04%2C+Part+2&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Martian northern plains; sedimentological, periglacial, and paleoclimatic evolution N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - evolution; glacial geology; Mars; paleoclimatology; periglacial features; plains; planets; sedimentology; surface features; symposia; terrestrial planets ER - TY - JOUR T1 - Climatological targets for Mars Pathfinder AN - 50339452; 1995-068132 AB - Four areas fit within the elevation and latitude constraints: Chryse, Elysium, Amazonis, and Isidis. There is geomorphic evidence that all have supported standing water. In some cases it would be difficult to pick a landing site that had no hope of teaching us about the climatic history of Mars. The southeast Elysium Basin provides an optimal target in which a variety of materials may be accessible in a near-shore environment. The albedo of the region is moderately low, and the thermal inertia is indicative of moderate rock coverage or some consolidation of fines, arguing that the site has not been covered with eolian dust deposits. JF - LPI Technical Report AU - Zent, A P A2 - Golombek, Matthew P. Y1 - 1994 PY - 1994 DA - 1994 SP - 42 EP - 43 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - Noachian KW - Mars KW - Hesperian KW - paleoclimatology KW - carbon dioxide KW - terrestrial planets KW - planets KW - sedimentary rocks KW - Amazonian KW - reconstruction KW - depositional environment KW - carbonate rocks KW - Mars Pathfinder KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50339452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Climatological+targets+for+Mars+Pathfinder&rft.au=Zent%2C+A+P&rft.aulast=Zent&rft.aufirst=A&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=42&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Mars Pathfinder landing site workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Amazonian; carbon dioxide; carbonate rocks; depositional environment; Hesperian; Mars; Mars Pathfinder; Noachian; paleoclimatology; planets; reconstruction; sedimentary rocks; terrestrial planets ER - TY - JOUR T1 - Detection of asteroidal dust particles from known families in near-Earth orbits AN - 50337888; 1996-046118 JF - LPI Technical Report AU - Dermott, S F AU - Liou, J C A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 16 EP - 17 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - Koronis Asteroids KW - Themis Asteroid KW - near-Earth objects KW - detection KW - asteroids KW - near-Earth asteroids KW - orbital observations KW - interplanetary dust KW - Eos Asteroid KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50337888?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Detection+of+asteroidal+dust+particles+from+known+families+in+near-Earth+orbits&rft.au=Dermott%2C+S+F%3BLiou%2C+J+C&rft.aulast=Dermott&rft.aufirst=S&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; detection; Eos Asteroid; interplanetary dust; Koronis Asteroids; near-Earth asteroids; near-Earth objects; orbital observations; Themis Asteroid ER - TY - JOUR T1 - The search for carbonates on Mars AN - 50337221; 1995-060586 JF - Special Publication - Karst Waters Institute AU - Farmer, Jack D AU - Des Marais, David J Y1 - 1994 PY - 1994 DA - 1994 SP - 16 EP - 17 PB - Karst Waters Institute, Charles Town, WV VL - 1 KW - channels KW - Mars KW - landforms KW - ecosystems KW - X-ray spectra KW - carbon dioxide KW - terrestrial planets KW - planets KW - siderite KW - sedimentary rocks KW - volcanism KW - spectra KW - carbonate rocks KW - carbonates KW - P-T conditions KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50337221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Publication+-+Karst+Waters+Institute&rft.atitle=The+search+for+carbonates+on+Mars&rft.au=Farmer%2C+Jack+D%3BDes+Marais%2C+David+J&rft.aulast=Farmer&rft.aufirst=Jack&rft.date=1994-01-01&rft.volume=1&rft.issue=&rft.spage=16&rft.isbn=0964025809&rft.btitle=&rft.title=Special+Publication+-+Karst+Waters+Institute&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Breakthroughs in karst geomicrobiology and redox geochemistry symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - WV N1 - Last updated - 2016-10-25 N1 - CODEN - #03893 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbonate rocks; carbonates; channels; ecosystems; landforms; Mars; P-T conditions; planets; sedimentary rocks; siderite; spectra; terrestrial planets; volcanism; X-ray spectra ER - TY - JOUR T1 - Exobiology site priorities for Mars Pathfinder AN - 50336214; 1995-068117 AB - The fact that life developed on the Earth within the first billion years of its history makes it quite plausible that life may have also developed on Mars. If life did develop on Mars, it undoubtedly left behind a fossil record. Such a fossil record is likely to be more accessible than either subsurface environments that may harbor life, or scattered "oases" that may be present at the surface. Consequently, the post-Viking approach of Mars exobiology has shifted focus to search for evidence of an ancient martian biosphere. This has led to the emergence of a new subdiscipline of paleontology, herein termed "exopaleontology", which deals with the exploration for fossils on other planets and whose core concepts derive from Earth-based Precambrian paleontology, microbial ecology, and sedimentology. Potential targets on Mars for subaqueous spring deposits, sedimentary cements, and evaporites are ancient terminal lake basins where hydrological systems could have endured for some time under arid conditions. Potential targets for the Mars Pathfinder mission include channeled impact craters and areas of deranged drainage associated with outflows in northwest Arabia and Xanthe Terra, where water may have ponded temporarily to form lakes. The major uncertainty of such targets is their comparatively younger age and the potentially short duration of hydrological activity compared to older paleolake basins found in the southern hemisphere. However, it has been suggested that cycles of catastrophic flooding associated with Tharsis volcanism may have sustained a large body of water, Oceanus Borealis, in the northern plains area until quite late in Martian history. Although problematic, the shoreline areas of the proposed northern ocean provide potential targets for a Mars Pathfinder mission aimed at exploring for carbonates or other potentially fossiliferous marine deposits. Carbonates and evaporites possess characteristic spectra signatures in the near-infrared and should be detectable using rover-based spectroscopy and other methods for in situ mineralogical analysis. JF - LPI Technical Report AU - Farmer, J D AU - Des Marais, D J A2 - Golombek, Matthew P. Y1 - 1994 PY - 1994 DA - 1994 SP - 26 EP - 27 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - terrestrial planets KW - planets KW - surface features KW - astrobiology KW - Viking Program KW - terrestrial comparison KW - Mars KW - landing sites KW - Mars Pathfinder KW - exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50336214?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=Exobiology+site+priorities+for+Mars+Pathfinder&rft.au=Farmer%2C+J+D%3BDes+Marais%2C+D+J&rft.aulast=Farmer&rft.aufirst=J&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=26&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Mars Pathfinder landing site workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 27 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - astrobiology; exploration; landing sites; Mars; Mars Pathfinder; planets; surface features; terrestrial comparison; terrestrial planets; Viking Program ER - TY - JOUR T1 - On dust emissions from the Jovian system AN - 50335570; 1996-046139 JF - LPI Technical Report AU - Zook, H A AU - Gruen, E AU - Baguhl, M AU - Balogh, A AU - Bame, S J AU - Fechtig, H AU - Forsyth, R AU - Hanner, M S AU - Horanyi, M AU - Kissel, J AU - Lindblad, B A AU - Linkert, D AU - Linkert, G AU - Mann, I AU - McDonnell, J A M AU - Morfill, G E AU - Phillips, J L AU - Polanskey, C AU - Schwehm, G AU - Siddique, N AU - Staubach, P AU - Svestka, J AU - Taylor, A A2 - Zolensky, M. Y1 - 1994 PY - 1994 DA - 1994 SP - 57 EP - 58 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - solar system KW - planets KW - parent bodies KW - Jupiter KW - velocity KW - outer planets KW - interplanetary dust KW - particles KW - giant planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50335570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Technical+Report&rft.atitle=On+dust+emissions+from+the+Jovian+system&rft.au=Zook%2C+H+A%3BGruen%2C+E%3BBaguhl%2C+M%3BBalogh%2C+A%3BBame%2C+S+J%3BFechtig%2C+H%3BForsyth%2C+R%3BHanner%2C+M+S%3BHoranyi%2C+M%3BKissel%2C+J%3BLindblad%2C+B+A%3BLinkert%2C+D%3BLinkert%2C+G%3BMann%2C+I%3BMcDonnell%2C+J+A+M%3BMorfill%2C+G+E%3BPhillips%2C+J+L%3BPolanskey%2C+C%3BSchwehm%2C+G%3BSiddique%2C+N%3BStaubach%2C+P%3BSvestka%2C+J%3BTaylor%2C+A&rft.aulast=Zook&rft.aufirst=H&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on the Analysis of interplanetary dust particles N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - giant planets; interplanetary dust; Jupiter; outer planets; parent bodies; particles; planets; solar system; velocity ER - TY - JOUR T1 - The Venus geologic mappers' handbook AN - 50335250; 1994-050860 JF - Open-File Report - U. S. Geological Survey AU - Tanaka, Kenneth L AU - Moore, Henry J AU - Schaber, Gerald G AU - Chapman, Mary G AU - Stofan, Ellen R AU - Campbell, Donald B AU - Davis, Philip A AU - Guest, John E AU - McGill, George E AU - Rogers, Patricia G AU - Saunders, R Steven AU - Zimbelman, James R Y1 - 1994 PY - 1994 DA - 1994 SP - 66 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - programs KW - nomenclature KW - cartography KW - Venus KW - mapping KW - bibliography KW - terrestrial planets KW - planets KW - planetology KW - manuals KW - map symbols KW - VMAP KW - USGS KW - 14:Geologic maps KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50335250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Tanaka%2C+Kenneth+L%3BMoore%2C+Henry+J%3BSchaber%2C+Gerald+G%3BChapman%2C+Mary+G%3BStofan%2C+Ellen+R%3BCampbell%2C+Donald+B%3BDavis%2C+Philip+A%3BGuest%2C+John+E%3BMcGill%2C+George+E%3BRogers%2C+Patricia+G%3BSaunders%2C+R+Steven%3BZimbelman%2C+James+R&rft.aulast=Tanaka&rft.aufirst=Kenneth&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=The+Venus+geologic+mappers%27+handbook&rft.title=The+Venus+geologic+mappers%27+handbook&rft.issn=01961497&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 200 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - bibliography; cartography; manuals; map symbols; mapping; nomenclature; planetology; planets; programs; terrestrial planets; USGS; Venus; VMAP ER - TY - RPRT T1 - Coupled soil-atmosphere model of H (sub 2) O (sub 2) on Mars AN - 50311404; 1998-040435 AB - The Viking Gas Chromatograph Mass Spectrometer failed to detect organic compounds on Mars, and both the Viking Labeled Release and the Viking Gas Exchange experiments indicated a reactive soil surface. These results have led to the widespread belief that there are oxidants in the martian soil. Since H (sub 2) O (sub 2) is produced by photochemical processes in the atmosphere of Mars, and has been shown in the laboratory to reproduce closely the Viking LR results, it is a likely candidate for a martian soil oxidant. Here, we report on the results of a coupled soil/atmosphere transport model for H (sub 2) O (sub 2) on Mars. Upon diffusing into the soil, its concentration is determined by the extent to which it is adsorbed and by the rate at which it is catalytically destroyed. An analytical model for calculating the distribution of H (sub 2) O (sub 2) in the martian atmosphere and soil is developed. The concentration of H (sub 2) O (sub 2) in the soil is shown to go to zero at a finite depth, a consequence of the nonlinear soil diffusion equation. The model is parameterized in terms of an unknown quantity, the lifetime of H (sub 2) O (sub 2) against heterogeneous catalytic destruction in the soil. Calculated concentrations are compared with a H (sub 2) O (sub 2) concentration of 30 nmoles/cu cm, inferred from the Viking Labeled Release experiment. A significant result of this model is that for a wide range of H (sub 2) O (sub 2) lifetimes (up to 105 years), the extinction depth was found to be less than 3 m. The maximum possible concentration in the top 4 cm is calculated to be approx. 240 nmoles/cu cm, achieved with lifetimes of greater than 1000 years. Concentrations higher than 30 nmoles/cu cm require lifetimes of greater than 4.3 terrestrial years. For a wide range of H (sub 2) O (sub 2) lifetimes, it was found that the atmospheric concentration is only weakly coupled with soil loss processes. Losses to the soil become significant only when lifetimes are less than a few hours. If there are depths below which H (sub 2) O (sub 2) is not transported, it is plausible that organic compounds, protected from an oxidizing environment, may still exist. They would have been deposited by meteors, or be the organic remains of past life. JF - Coupled soil-atmosphere model of H (sub 2) O (sub 2) on Mars AU - Bullock, M A AU - Stoker, C R AU - McKay, C P AU - Zent, A P Y1 - 1994 PY - 1994 DA - 1994 SP - 14 VL - NAS 1.26:202703 KW - soils KW - data acquisition KW - data processing KW - atmosphere KW - Viking Program KW - Mars KW - equations KW - terrestrial planets KW - planets KW - organic compounds KW - transport KW - hydrogen peroxide KW - diffusivity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50311404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bullock%2C+M+A%3BStoker%2C+C+R%3BMcKay%2C+C+P%3BZent%2C+A+P&rft.aulast=Bullock&rft.aufirst=M&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Coupled+soil-atmosphere+model+of+H+%28sub+2%29+O+%28sub+2%29+on+Mars&rft.title=Coupled+soil-atmosphere+model+of+H+%28sub+2%29+O+%28sub+2%29+on+Mars&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number N19970007037NEG, Springfield, VA, United States N1 - SuppNotes - Contract NCA2-247 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Geodetic slip rate for the Eastern California shear zone and the recurrence time of Mojave Desert earthquakes AN - 50282169; 1994-009488 AB - Geodetic observations on the central Mojave desert are used to obtain new estimates for the rate and distribution of strain across a segment of the E California shear zone (ECSZ) in which arose the magnitude 7.3 Landers earthquake of 28/6/92 and for which a coeseismic strain drop of approx 700 mu rad was determined. A strain-energy recharge time of 3500-5000 yr is estimated for a Landers-type earthquake and a slip rate of approx 12 mm/yr across the faults of the central Mojave, implying that a greater fraction of Pacific/N American plate motion than previously inferred is accommodated across the ECSZ. JF - Nature (London) AU - Sauber, Jeanne AU - Thatcher, Wayne AU - Solomon, Sean C AU - Lisowski, Michael Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 264 EP - 266 PB - Macmillan Journals, London VL - 367 IS - 6460 SN - 0028-0836, 0028-0836 KW - United States KW - geologic hazards KW - strain KW - right-lateral faults KW - lateral faults KW - Eastern California shear zone KW - slip rates KW - continental crust KW - strike-slip faults KW - geodesy KW - California KW - movement KW - Mojave Desert KW - tectonics KW - active faults KW - San Bernardino County California KW - seismotectonics KW - faults KW - shear zones KW - geodetic networks KW - Landers earthquake 1992 KW - plate tectonics KW - Southern California KW - San Andreas Fault KW - earthquakes KW - crust KW - 19:Seismology KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50282169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geodetic+slip+rate+for+the+Eastern+California+shear+zone+and+the+recurrence+time+of+Mojave+Desert+earthquakes&rft.au=Sauber%2C+Jeanne%3BThatcher%2C+Wayne%3BSolomon%2C+Sean+C%3BLisowski%2C+Michael&rft.aulast=Sauber&rft.aufirst=Jeanne&rft.date=1994-01-01&rft.volume=367&rft.issue=6460&rft.spage=264&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F367264a0 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 - 1994-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - active faults; California; continental crust; crust; earthquakes; Eastern California shear zone; faults; geodesy; geodetic networks; geologic hazards; Landers earthquake 1992; lateral faults; Mojave Desert; movement; plate tectonics; right-lateral faults; San Andreas Fault; San Bernardino County California; seismotectonics; shear zones; slip rates; Southern California; strain; strike-slip faults; tectonics; United States DO - http://dx.doi.org/10.1038/367264a0 ER - TY - JOUR T1 - Glacial-interglacial changes in moisture sources for Greenland; influences on the ice core record of climate AN - 50280589; 1994-014830 JF - Science AU - Charles, C D AU - Rind, D AU - Jouzel, J AU - Koster, R D AU - Fairbanks, R G Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 508 EP - 511 PB - American Association for the Advancement of Science, Washington, DC VL - 263 IS - 5146 SN - 0036-8075, 0036-8075 KW - ice cores KW - Quaternary KW - oxygen KW - isotopes KW - interglacial environment KW - paleohydrology KW - moisture KW - Arctic region KW - paleoatmosphere KW - paleocirculation KW - O-18/O-16 KW - paleoclimatology KW - stable isotopes KW - Cenozoic KW - Greenland KW - glacial environment KW - Pleistocene KW - seasonal variations KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50280589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Glacial-interglacial+changes+in+moisture+sources+for+Greenland%3B+influences+on+the+ice+core+record+of+climate&rft.au=Charles%2C+C+D%3BRind%2C+D%3BJouzel%2C+J%3BKoster%2C+R+D%3BFairbanks%2C+R+G&rft.aulast=Charles&rft.aufirst=C&rft.date=1994-01-01&rft.volume=263&rft.issue=5146&rft.spage=508&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Arctic region; Cenozoic; glacial environment; Greenland; ice cores; interglacial environment; isotopes; moisture; O-18/O-16; oxygen; paleoatmosphere; paleocirculation; paleoclimatology; paleohydrology; Pleistocene; Quaternary; seasonal variations; stable isotopes ER - TY - JOUR T1 - Discovery of grooves on Gaspra AN - 50276301; 2005-069416 JF - Icarus (Online) AU - Veverka, J AU - Thomas, P AU - Simonelli, D AU - Belton, M J S AU - Carr, M H AU - Chapman, C AU - Davies, M E AU - Greeley, Ronald AU - Greenberg, Richard AU - Head, J W Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 72 EP - 83 PB - Elsevier VL - 107 IS - 1 SN - 1090-2643, 1090-2643 KW - Phobos Satellite KW - cratering KW - relative age KW - asteroids KW - shape analysis KW - Mars KW - size KW - terrestrial planets KW - planets KW - Gaspra Asteroid KW - craters KW - surface features KW - S-type asteroids KW - planetology KW - interplanetary comparison KW - grooved terrains KW - geomorphology KW - satellites KW - image analysis KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50276301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Discovery+of+grooves+on+Gaspra&rft.au=Veverka%2C+J%3BThomas%2C+P%3BSimonelli%2C+D%3BBelton%2C+M+J+S%3BCarr%2C+M+H%3BChapman%2C+C%3BDavies%2C+M+E%3BGreeley%2C+Ronald%3BGreenberg%2C+Richard%3BHead%2C+J+W&rft.aulast=Veverka&rft.aufirst=J&rft.date=1994-01-01&rft.volume=107&rft.issue=1&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1994.1007 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; cratering; craters; Gaspra Asteroid; geomorphology; grooved terrains; image analysis; interplanetary comparison; Mars; Phobos Satellite; planetology; planets; relative age; remote sensing; S-type asteroids; satellites; shape analysis; size; surface features; terrestrial planets DO - http://dx.doi.org/10.1006/icar.1994.1007 ER - TY - JOUR T1 - Impacts on the Earth by asteroids and comets; assessing the hazard AN - 50274278; 1994-014813 JF - Nature (London) AU - Chapman, Clark R AU - Morrison, David Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 33 EP - 40 PB - Macmillan Journals, London VL - 367 IS - 6458 SN - 0028-0836, 0028-0836 KW - controls KW - comets KW - geologic hazards KW - asteroids KW - public awareness KW - statistical analysis KW - prediction KW - risk assessment KW - impacts KW - preventive measures KW - 04:Extraterrestrial geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50274278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Impacts+on+the+Earth+by+asteroids+and+comets%3B+assessing+the+hazard&rft.au=Chapman%2C+Clark+R%3BMorrison%2C+David&rft.aulast=Chapman&rft.aufirst=Clark&rft.date=1994-01-01&rft.volume=367&rft.issue=6458&rft.spage=33&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 - 1994-01-01 N1 - Number of references - 65 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - asteroids; comets; controls; geologic hazards; impacts; prediction; preventive measures; public awareness; risk assessment; statistical analysis ER - TY - JOUR T1 - Long wavelength geopotential and tidal modeling for geodynamics and ocean dynamics; GEM-T3 and GEM-T3S AN - 50242571; 1994-037329 AB - Spherical harmonic models of the Earth's gravitational field have been developed using tracking data from 31 satellites exclusively (GEM-T3S); and in combination with surface gravimetry and altimeter data from SEASAT, GEOSAT and GEOS-3 (GEM-T3). These models are complete to degree and order 50. When altimeter data are used, time-averaged models of the dynamic topography are estimated for each of the three different satellite altimeter missions. The long wavelength geoid definition has improved significantly due to improvements in measurement models for the tracking data, newly available surface gravity data within Asia, and better separation of environmental, oceanographic and gravity signals sensed by the altimetry. The GEM-T3 model contains simultaneous solutions for dynamic ocean tidal terms; these tide models are compared to Lunar Laser Ranging results for the secular change in the lunar mean motion. These gravitational and tidal models, however, do not exhaust the gravitational signal within the tracking data. To do so requires significant improvements in non-conservative force models, expanded ocean tidal models eliminating significant omitted non-resonance ocean tide effects, improvements in the modeling of non-tidal time-variations in the gravity field, and improved modeling of station and Earth motions. Many of these newer models have been incorporated into a reiteration of the gravity field model which is now in progress. JF - Geophysical Monograph AU - Nerem, R S AU - Lerch, F J AU - Putney, B H AU - Klosko, S M AU - Williamson, R G AU - Patel, G B AU - Pavlis, E C Y1 - 1994 PY - 1994 DA - 1994 SP - 9 EP - 19 PB - American Geophysical Union, Washington, DC VL - 82 SN - 0065-8448, 0065-8448 KW - ocean circulation KW - Geosat KW - Earth KW - geophysical methods KW - radar methods KW - altimetry KW - geodesy KW - satellite methods KW - GEOS-3 KW - tides KW - spherical harmonic analysis KW - models KW - gravity field KW - topography KW - Seasat KW - geoid KW - remote sensing KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50242571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Long+wavelength+geopotential+and+tidal+modeling+for+geodynamics+and+ocean+dynamics%3B+GEM-T3+and+GEM-T3S&rft.au=Nerem%2C+R+S%3BLerch%2C+F+J%3BPutney%2C+B+H%3BKlosko%2C+S+M%3BWilliamson%2C+R+G%3BPatel%2C+G+B%3BPavlis%2C+E+C&rft.aulast=Nerem&rft.aufirst=R&rft.date=1994-01-01&rft.volume=82&rft.issue=&rft.spage=9&rft.isbn=9781118666647&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118666647.ch2 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - SuppNotes - IUGG Vol. 17 N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - altimetry; Earth; geodesy; geoid; geophysical methods; GEOS-3; Geosat; gravity field; models; ocean circulation; radar methods; remote sensing; satellite methods; Seasat; spherical harmonic analysis; tides; topography DO - http://dx.doi.org/10.1002/9781118666647.ch2 ER - TY - JOUR T1 - Depiction of modern and Pangean deserts; evaluation of GCM hydrological diagnostics for paleoclimate studies AN - 50242326; 1994-030728 AB - Hydrologic patterns are imprinted in the geologic record and play a prominent role in the investigations of Pangean climate. However, the hydrologic aspects of climate are complex (1) many variables are required to analyze hydrology, (2) hydrologic processes act on spatial scales that are smaller than GCM (General Circulation Model) grid spacing, and (3) observational data bases for calibrating modern climate simulations are few. This study, which uses a GCM to depict arid climates of the past and present, is designed to evaluate a variety of simulated hydrologic variables that are becoming increasingly available for paleoclimate model/data comparison studies. Simulations of the current climate show that there are quantifiable levels of precipitation (P), soil moisture, and surface runoff that delineate the locations of modern deserts. However, in a Pangean simulation, using the same model, the threshold values of these variables reveal disparate views of desert extent. Altered boundary conditions and atmospheric circulation can invalidate thresholds based on modern climatology. The credibility of these variables thus rests heavily on the accuracy of reconstructed boundary conditions. A more fundamental meteorological approach defines deserts as regions where the atmospheric demand for moisture (potential evapotranspiration, E (sub p) ) exceeds the supply (precipitation, P). GCM values of E (sub p) are overestimated; thus simulated P-E (sub p) fields are unusable. However, simulated Ep values can be derived independently using GCM-produced temperature values in empirically derived equations (E (sub T (sub p) ) ). Similar methods, using observed temperatures, are employed by atmospheric scientists to construct global and regional E (sub p) data sets. The results of this study indicate that P-E (sub T (sub p) ) is more accurate than other individual variables for calculating moisture balance and is more useful for paleoclimate model/data comparisons because of its fundamental meteorological basis and lack of dependence on prescribed vegetation and soil conditions. Ultimately, hydrological misinterpretations can be avoided by understanding the limitations of GCM parameterizations and by strictly cross-checking variables with each other and with available paleoclimate data. JF - Special Paper - Geological Society of America AU - Chandler, Mark A Y1 - 1994 PY - 1994 DA - 1994 SP - 117 EP - 138 PB - Geological Society of America (GSA), Boulder, CO VL - 288 SN - 0072-1077, 0072-1077 KW - eolian features KW - general circulation models KW - terrestrial environment KW - Pangaea KW - Jurassic KW - paleohydrology KW - moisture KW - arid environment KW - atmosphere KW - atmospheric precipitation KW - paleoclimatology KW - Mesozoic KW - deserts KW - models KW - Lower Jurassic KW - circulation KW - Triassic KW - runoff KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50242326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Depiction+of+modern+and+Pangean+deserts%3B+evaluation+of+GCM+hydrological+diagnostics+for+paleoclimate+studies&rft.au=Chandler%2C+Mark+A&rft.aulast=Chandler&rft.aufirst=Mark&rft.date=1994-01-01&rft.volume=288&rft.issue=&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2FSPE288-p117 LA - English DB - GeoRef N1 - Conference title - International workshop for Project PANGEA N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 61 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2013-06-13 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - arid environment; atmosphere; atmospheric precipitation; circulation; deserts; eolian features; general circulation models; Jurassic; Lower Jurassic; Mesozoic; models; moisture; paleoclimatology; paleohydrology; Pangaea; runoff; terrestrial environment; Triassic DO - http://dx.doi.org/10.1130/SPE288-p117 ER - TY - JOUR T1 - GCM simulations of the Pliocene climate; feedbacks, ocean transports, and CO (sub 2) AN - 50226890; 1994-041240 JF - Open-File Report - U. S. Geological Survey AU - Chandler, Mark A Y1 - 1994 PY - 1994 DA - 1994 SP - 65 EP - 68 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - general circulation models KW - data processing KW - paleo-oceanography KW - paleocirculation KW - paleoclimatology KW - models KW - Cenozoic KW - Tertiary KW - paleotemperature KW - Neogene KW - digital simulation KW - Pliocene KW - Northern Hemisphere KW - USGS KW - Atlantic Ocean KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50226890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=GCM+simulations+of+the+Pliocene+climate%3B+feedbacks%2C+ocean+transports%2C+and+CO+%28sub+2%29&rft.au=Chandler%2C+Mark+A&rft.aulast=Chandler&rft.aufirst=Mark&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://pubs.usgs.gov/of/1994/of94-023/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Workshop on Pliocene terrestrial environments and data/model comparisons N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 6 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Last updated - 2016-09-16 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; Cenozoic; data processing; digital simulation; general circulation models; models; Neogene; Northern Hemisphere; paleo-oceanography; paleocirculation; paleoclimatology; paleotemperature; Pliocene; Tertiary; USGS ER - TY - JOUR T1 - Coseismic slip in the 1964 Prince William Sound earthquake; a new geodetic inversion AN - 50214965; 1994-046769 JF - Pure and Applied Geophysics AU - Holdahl, Sanford R AU - Sauber, Jeanne A2 - Dmowska, Renata A2 - Ekstrom, Goran Y1 - 1994 PY - 1994 DA - 1994 SP - 55 EP - 82 PB - Birkhaeuser Verlag, Basel VL - 142 IS - 1 SN - 0033-4553, 0033-4553 KW - United States KW - Prince William Sound KW - slip rates KW - strike-slip faults KW - geodetic coordinates KW - geodesy KW - displacements KW - fault planes KW - Aleutian Trench KW - tectonics KW - seismotectonics KW - faults KW - Alaska earthquake 1964 KW - seismology KW - inverse problem KW - dip-slip faults KW - deformation KW - Southern Alaska KW - geometry KW - models KW - rupture KW - North Pacific KW - Pacific Ocean KW - Kodiak Island KW - epicenters KW - Alaska KW - Southwestern Alaska KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50214965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Pure+and+Applied+Geophysics&rft.atitle=Coseismic+slip+in+the+1964+Prince+William+Sound+earthquake%3B+a+new+geodetic+inversion&rft.au=Holdahl%2C+Sanford+R%3BSauber%2C+Jeanne&rft.aulast=Holdahl&rft.aufirst=Sanford&rft.date=1994-01-01&rft.volume=142&rft.issue=1&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Pure+and+Applied+Geophysics&rft.issn=00334553&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 38 N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - PAGYAV N1 - SubjectsTermNotLitGenreText - Alaska; Alaska earthquake 1964; Aleutian Trench; deformation; dip-slip faults; displacements; earthquakes; epicenters; fault planes; faults; geodesy; geodetic coordinates; geometry; inverse problem; Kodiak Island; models; North Pacific; Pacific Ocean; Prince William Sound; rupture; seismology; seismotectonics; slip rates; Southern Alaska; Southwestern Alaska; strike-slip faults; tectonics; United States ER - TY - JOUR T1 - Volcanic hazard detection with the Total Ozone Mapping Spectrometer (TOMS) AN - 50194319; 1995-003779 JF - U. S. Geological Survey Bulletin AU - Krueger, Arlin J AU - Doiron, Scott R AU - Bluth, Greg J S AU - Walter, Louis S AU - Schnetzler, C C A2 - Casadevall, Thomas J. Y1 - 1994 PY - 1994 DA - 1994 SP - 367 EP - 372 PB - U. S. Geological Survey, Reston, VA SN - 8755-531X, 8755-531X KW - sulfur dioxide KW - Total Ozone Mapping Spectrometer KW - TOMS KW - geologic hazards KW - contaminant plumes KW - atmosphere KW - satellite methods KW - explosive eruptions KW - gases KW - aviation KW - ozone KW - detection KW - tracers KW - volcanoes KW - volcanic ash KW - USGS KW - spectroscopy KW - meteorology KW - ash clouds KW - instruments KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50194319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=U.+S.+Geological+Survey+Bulletin&rft.atitle=Volcanic+hazard+detection+with+the+Total+Ozone+Mapping+Spectrometer+%28TOMS%29&rft.au=Krueger%2C+Arlin+J%3BDoiron%2C+Scott+R%3BBluth%2C+Greg+J+S%3BWalter%2C+Louis+S%3BSchnetzler%2C+C+C&rft.aulast=Krueger&rft.aufirst=Arlin&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=U.+S.+Geological+Survey+Bulletin&rft.issn=8755531X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - First international symposium on Volcanic ash and aviation safety N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 15 N1 - PubXState - VA N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - XDIGAS N1 - SubjectsTermNotLitGenreText - ash clouds; atmosphere; aviation; contaminant plumes; detection; explosive eruptions; gases; geologic hazards; instruments; meteorology; ozone; remote sensing; satellite methods; spectroscopy; sulfur dioxide; TOMS; Total Ozone Mapping Spectrometer; tracers; USGS; volcanic ash; volcanoes ER - TY - JOUR T1 - Theoretical, observational, and isotopic estimates of the lifetime of the solar nebula AN - 50192657; 1995-008359 JF - Meteoritics AU - Podosek, Frank A AU - Cassen, Patrick Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 6 EP - 25 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 29 IS - 1 SN - 0026-1114, 0026-1114 KW - solar system KW - Pb/Pb KW - Sr/Sr KW - stony meteorites KW - Precambrian KW - cosmochemistry KW - carbonaceous chondrites KW - CV chondrites KW - Al/Mg KW - achondrites KW - Rb/Sr KW - Allende Meteorite KW - solar nebula KW - meteorites KW - dates KW - inclusions KW - absolute age KW - Archean KW - Mg/Mg KW - chondrites KW - Tauri star KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50192657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Theoretical%2C+observational%2C+and+isotopic+estimates+of+the+lifetime+of+the+solar+nebula&rft.au=Podosek%2C+Frank+A%3BCassen%2C+Patrick&rft.aulast=Podosek&rft.aufirst=Frank&rft.date=1994-01-01&rft.volume=29&rft.issue=1&rft.spage=6&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 131 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; Al/Mg; Allende Meteorite; Archean; carbonaceous chondrites; chondrites; cosmochemistry; CV chondrites; dates; inclusions; meteorites; Mg/Mg; Pb/Pb; Precambrian; Rb/Sr; solar nebula; solar system; Sr/Sr; stony meteorites; Tauri star ER - TY - JOUR T1 - Water-rock reaction in fault zones; reaction hardening verses reaction softening AN - 50181796; 1995-013967 JF - Open-File Report - U. S. Geological Survey AU - Wintsch, Robert P AU - Christoffersen, Roy AU - Kronenberg, A K AU - Jacobson, Muriel L Y1 - 1994 PY - 1994 DA - 1994 SP - 533 EP - 539 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - silicates KW - shear strength KW - roughness KW - rock mechanics KW - preferred orientation KW - California KW - chemical reactions KW - water-rock interaction KW - San Andreas Fault KW - sheet silicates KW - active faults KW - USGS KW - faults KW - fault zones KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Water-rock+reaction+in+fault+zones%3B+reaction+hardening+verses+reaction+softening&rft.au=Wintsch%2C+Robert+P%3BChristoffersen%2C+Roy%3BKronenberg%2C+A+K%3BJacobson%2C+Muriel+L&rft.aulast=Wintsch&rft.aufirst=Robert&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Workshop LXIII, USGS Red-Book conference on the Mechanical involvement of fluids in faulting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 17 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - active faults; California; chemical reactions; fault zones; faults; preferred orientation; rock mechanics; roughness; San Andreas Fault; shear strength; sheet silicates; silicates; United States; USGS; water-rock interaction ER - TY - JOUR T1 - Textural, geochemical and stable isotopic evidence for hydrothermal activity on Mars; carbonate in the SNC meteorite ALH84001 AN - 50178799; 1995-015671 JF - Abstracts with Programs - Geological Society of America AU - Romanek, C S AU - Mittlefehldt, D W AU - Gibson, E K, Jr AU - Socki, R A AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 424 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - stony meteorites KW - oxygen KW - isotopes KW - Martian meteorites KW - Mars KW - stable isotopes KW - carbon dioxide KW - SNC Meteorites KW - meteorites KW - carbon KW - ALH 84001 KW - geochemistry KW - degassing KW - water KW - textures KW - lithosphere KW - isotope ratios KW - C-13/C-12 KW - atmosphere KW - O-18/O-16 KW - achondrites KW - hydrothermal conditions KW - terrestrial planets KW - paragenesis KW - planets KW - volatiles KW - Allan Hills Meteorites KW - carbonates KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50178799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Textural%2C+geochemical+and+stable+isotopic+evidence+for+hydrothermal+activity+on+Mars%3B+carbonate+in+the+SNC+meteorite+ALH84001&rft.au=Romanek%2C+C+S%3BMittlefehldt%2C+D+W%3BGibson%2C+E+K%2C+Jr%3BSocki%2C+R+A%3BAnonymous&rft.aulast=Romanek&rft.aufirst=C&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=424&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, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; Allan Hills Meteorites; atmosphere; C-13/C-12; carbon; carbon dioxide; carbonates; degassing; geochemistry; hydrothermal conditions; isotope ratios; isotopes; lithosphere; Mars; Martian meteorites; meteorites; O-18/O-16; oxygen; paragenesis; planets; SNC Meteorites; stable isotopes; stony meteorites; terrestrial planets; textures; volatiles; water ER - TY - JOUR T1 - Ozone loss in the lower stratosphere over the United States in 1992-1993; evidence for heterogeneous chemistry on the Pinatubo aerosol AN - 50177740; 1995-007326 AB - Ozone profiles obtained at Boulder, Colorado and Wallops Island, Virginia indicate that ozone was about 25% below normal during the winter and spring of 1992-93 in the 12-22 km region. This large ozone reduction in the lower stratosphere, though sometimes partially compensated by higher than normal ozone above 24 km, was responsible for the low total column ozone values observed across the United States during this period. Normal temperatures throughout the low ozone region suggest that transport-related effects are probably not the most important cause of the ozone deficits. The region of low ozone at Boulder corresponds closely with the location of the enhanced H (sub 2) SO (sub 4) /H (sub 2) O aerosol from the Pinatubo eruption of 1991 as measured near Boulder and at Laramie, Wyoming. Trajectory analyses suggest that except at low altitudes in spring, air parcels on the days of the ozone measurements generally arrived at Boulder from higher latitude, although seldom higher than 60 degrees N, and hence may have been subjected to heterogeneous chemical processing on the surface of Pinatubo aerosol droplets resulting in chlorine-catalyzed ozone destruction, a process which is believed to be more effective under the lower winter temperatures and sunlight levels of higher latitudes. Copyright 1994 by the American Geophysical Union. JF - Geophysical Research Letters AU - Hofmann, D J AU - Oltmans, S J AU - Komhyr, W D AU - Harris, J M AU - Lathrop, J A AU - Langford, A O AU - Deshler, T AU - Johnson, B J AU - Torres, A AU - Matthews, W A Y1 - 1994/01// PY - 1994 DA - January 1994 SP - 65 EP - 68 PB - American Geophysical Union, Washington, DC VL - 21 IS - 1 SN - 0094-8276, 0094-8276 KW - ozone KW - Luzon KW - Far East KW - stratosphere KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - aerosols KW - Asia KW - geochemistry KW - 24:Quaternary geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50177740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Ozone+loss+in+the+lower+stratosphere+over+the+United+States+in+1992-1993%3B+evidence+for+heterogeneous+chemistry+on+the+Pinatubo+aerosol&rft.au=Hofmann%2C+D+J%3BOltmans%2C+S+J%3BKomhyr%2C+W+D%3BHarris%2C+J+M%3BLathrop%2C+J+A%3BLangford%2C+A+O%3BDeshler%2C+T%3BJohnson%2C+B+J%3BTorres%2C+A%3BMatthews%2C+W+A&rft.aulast=Hofmann&rft.aufirst=D&rft.date=1994-01-01&rft.volume=21&rft.issue=1&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL02526 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Asia; Far East; geochemistry; Luzon; Mount Pinatubo; ozone; Philippine Islands; stratosphere; volcanism DO - http://dx.doi.org/10.1029/93GL02526 ER - TY - JOUR T1 - Utility of airborne electromagnetic profiler data for geomorphological characterization of shallow coastal environments; case study, the Cape Lookout, NC area AN - 50174268; 1995-017777 JF - Proceedings of the Thematic Conference on Remote Sensing for Marine and Coastal Environments AU - Pelletier, R E AU - Holladay, K W AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - II.70 EP - II.80 PB - Environmental Research Institute of Michigan, Ann Arbor, MI VL - 2 SN - 1066-3711, 1066-3711 KW - United States KW - shallow-water environment KW - Cape Lookout KW - geophysical surveys KW - geophysical methods KW - data processing KW - radar methods KW - models KW - case studies KW - magnetic profiles KW - North Carolina KW - electromagnetic methods KW - surveys KW - coastal environment KW - geophysical profiles KW - geomorphology KW - bathymetry KW - Atlantic Coastal Plain KW - airborne methods KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50174268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Remote+Sensing+for+Marine+and+Coastal+Environments&rft.atitle=Utility+of+airborne+electromagnetic+profiler+data+for+geomorphological+characterization+of+shallow+coastal+environments%3B+case+study%2C+the+Cape+Lookout%2C+NC+area&rft.au=Pelletier%2C+R+E%3BHolladay%2C+K+W%3BAnonymous&rft.aulast=Pelletier&rft.aufirst=R&rft.date=1994-01-01&rft.volume=2&rft.issue=&rft.spage=II.70&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Thematic+Conference+on+Remote+Sensing+for+Marine+and+Coastal+Environments&rft.issn=10663711&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Second thematic conference on Remote sensing for marine and coastal environments N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 7 N1 - PubXState - MI N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - airborne methods; Atlantic Coastal Plain; bathymetry; Cape Lookout; case studies; coastal environment; data processing; electromagnetic methods; geomorphology; geophysical methods; geophysical profiles; geophysical surveys; magnetic profiles; models; North Carolina; radar methods; shallow-water environment; surveys; United States ER - TY - JOUR T1 - (super 18) O and H/D composition of water thermally extracted from carbonates AN - 50172712; 1995-022759 JF - Abstracts with Programs - Geological Society of America AU - Socki, Richard A AU - Romanek, Christopher S AU - Gibson, Everett K, Jr AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 496 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - stony meteorites KW - oxygen KW - isotopes KW - crystal growth KW - rhodochrosite KW - stable isotopes KW - temperature KW - infrared spectra KW - carbon dioxide KW - meteorites KW - water-rock interaction KW - inclusions KW - spectra KW - chondrites KW - water KW - experimental studies KW - isotope ratios KW - O-18/O-16 KW - calcite KW - witherite KW - Antarctica KW - D/H KW - hydrogen KW - fluid inclusions KW - carbonates KW - 06A:Sedimentary petrology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50172712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=%28super+18%29+O+and+H%2FD+composition+of+water+thermally+extracted+from+carbonates&rft.au=Socki%2C+Richard+A%3BRomanek%2C+Christopher+S%3BGibson%2C+Everett+K%2C+Jr%3BAnonymous&rft.aulast=Socki&rft.aufirst=Richard&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=496&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, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Antarctica; calcite; carbon dioxide; carbonates; chondrites; crystal growth; D/H; experimental studies; fluid inclusions; hydrogen; inclusions; infrared spectra; isotope ratios; isotopes; meteorites; O-18/O-16; oxygen; rhodochrosite; spectra; stable isotopes; stony meteorites; temperature; water; water-rock interaction; witherite ER - TY - JOUR T1 - The Zhamanshin impact feature; a new class of complex crater? AN - 50170537; 1995-021457 JF - Special Paper - Geological Society of America AU - Garvin, J B AU - Schnetzler, C C A2 - Dressler, B. O. A2 - Grieve, R. A. F. A2 - Sharpton, V. L. Y1 - 1994 PY - 1994 DA - 1994 SP - 249 EP - 257 PB - Geological Society of America (GSA), Boulder, CO VL - 293 SN - 0072-1077, 0072-1077 KW - near-infrared spectra KW - thematic mapper KW - impact features KW - erosion KW - Central Asia KW - Bolivia KW - Aktyubinsk Kazakhstan KW - topography KW - Commonwealth of Independent States KW - spectra KW - Asia KW - Zhamanshin Crater KW - Ghana KW - Bosumtwi Crater KW - rates KW - ejecta KW - models KW - West Africa KW - South America KW - Landsat KW - Iturralde Structure KW - Africa KW - Kazakhstan KW - impact craters KW - SPOT KW - remote sensing KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50170537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=The+Zhamanshin+impact+feature%3B+a+new+class+of+complex+crater%3F&rft.au=Garvin%2C+J+B%3BSchnetzler%2C+C+C&rft.aulast=Garvin&rft.aufirst=J&rft.date=1994-01-01&rft.volume=293&rft.issue=&rft.spage=249&rft.isbn=0813722934&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 25 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Africa; Aktyubinsk Kazakhstan; Asia; Bolivia; Bosumtwi Crater; Central Asia; Commonwealth of Independent States; ejecta; erosion; Ghana; impact craters; impact features; Iturralde Structure; Kazakhstan; Landsat; models; near-infrared spectra; rates; remote sensing; South America; spectra; SPOT; thematic mapper; topography; West Africa; Zhamanshin Crater ER - TY - JOUR T1 - Volcanic winter, environmental crisis, and human-population crash; aftermath of the Toba super-eruption (-73,500 yr ago)? AN - 50169514; 1995-022905 JF - Abstracts with Programs - Geological Society of America AU - Rampino, Michael R AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 263 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - tropical environment KW - Toba Lake KW - Far East KW - biomass KW - Indonesia KW - volcanic winter KW - vegetation KW - paleoclimatology KW - explosive eruptions KW - cores KW - Cenozoic KW - stratosphere KW - paleotemperature KW - ice KW - glacial environment KW - sediments KW - cooling KW - Asia KW - hydrology KW - archaeology KW - Quaternary KW - temperate environment KW - interglacial environment KW - clastic sediments KW - paleoenvironment KW - Sumatra KW - eruptions KW - dust KW - Pleistocene KW - aerosols KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50169514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Volcanic+winter%2C+environmental+crisis%2C+and+human-population+crash%3B+aftermath+of+the+Toba+super-eruption+%28-73%2C500+yr+ago%29%3F&rft.au=Rampino%2C+Michael+R%3BAnonymous&rft.aulast=Rampino&rft.aufirst=Michael&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=263&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, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aerosols; archaeology; Asia; biomass; Cenozoic; clastic sediments; cooling; cores; dust; eruptions; explosive eruptions; Far East; glacial environment; hydrology; ice; Indonesia; interglacial environment; paleoclimatology; paleoenvironment; paleotemperature; Pleistocene; Quaternary; sediments; stratosphere; Sumatra; temperate environment; Toba Lake; tropical environment; vegetation; volcanic winter ER - TY - JOUR T1 - Multiple lines of isotopic evidence for episodic changes in the Proterozoic environment AN - 50168869; 1995-023329 JF - Abstracts with Programs - Geological Society of America AU - Des Marais, David J AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 35 EP - 36 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - photosynthesis KW - upper Precambrian KW - oxygen KW - isotopes KW - erosion KW - uplifts KW - continental crust KW - stable isotopes KW - volcanism KW - sedimentation rates KW - carbon KW - sediments KW - organic carbon KW - organic materials KW - sulfate ion KW - Precambrian KW - paleoatmosphere KW - oxidation KW - sedimentation KW - photochemistry KW - rates KW - Proterozoic KW - geochemical cycle KW - organic compounds KW - paleoenvironment KW - biosphere KW - C-13 KW - kerogen KW - crust KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50168869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Multiple+lines+of+isotopic+evidence+for+episodic+changes+in+the+Proterozoic+environment&rft.au=Des+Marais%2C+David+J%3BAnonymous&rft.aulast=Des+Marais&rft.aufirst=David&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biosphere; C-13; carbon; continental crust; crust; erosion; geochemical cycle; isotopes; kerogen; organic carbon; organic compounds; organic materials; oxidation; oxygen; paleoatmosphere; paleoenvironment; photochemistry; photosynthesis; Precambrian; Proterozoic; rates; sedimentation; sedimentation rates; sediments; stable isotopes; sulfate ion; uplifts; upper Precambrian; volcanism ER - TY - JOUR T1 - The effects of differential scaling of impact melt and crater dimensions on lunar and terrestrial craters; some brief examples AN - 50168829; 1995-021441 JF - Special Paper - Geological Society of America AU - Cintala, Mark J AU - Grieve, Richard A F A2 - Dressler, B. O. A2 - Grieve, R. A. F. A2 - Sharpton, V. L. Y1 - 1994 PY - 1994 DA - 1994 SP - 51 EP - 59 PB - Geological Society of America (GSA), Boulder, CO VL - 293 SN - 0072-1077, 0072-1077 KW - melting KW - Earth KW - impact features KW - Moon KW - uplifts KW - acceleration KW - velocity KW - impact craters KW - effects KW - geomorphology KW - melts KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50168829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=The+effects+of+differential+scaling+of+impact+melt+and+crater+dimensions+on+lunar+and+terrestrial+craters%3B+some+brief+examples&rft.au=Cintala%2C+Mark+J%3BGrieve%2C+Richard+A+F&rft.aulast=Cintala&rft.aufirst=Mark&rft.date=1994-01-01&rft.volume=293&rft.issue=&rft.spage=51&rft.isbn=0813722934&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 52 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - acceleration; Earth; effects; geomorphology; impact craters; impact features; melting; melts; Moon; uplifts; velocity ER - TY - JOUR T1 - Subduction zone magnetic anomalies; characterization of source rock mafic xenoliths, Japan and Aleutian Islands AN - 50166294; 1995-022630 JF - Abstracts with Programs - Geological Society of America AU - Warner, Richard D AU - Wasilewski, Peter J AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 471 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Far East KW - subduction zones KW - Ichinomegata Crater KW - Adagak KW - igneous rocks KW - magnetic domains KW - magnetization KW - mafic composition KW - elastic waves KW - amphibolites KW - lamellae KW - plutonic rocks KW - mineral composition KW - remanent magnetization KW - Iki Island KW - metamorphic rocks KW - inclusions KW - Magsat KW - mineral assemblages KW - Asia KW - xenoliths KW - Kyushu KW - Kanaga Islands KW - magnetic anomalies KW - paleomagnetism KW - natural remanent magnetization KW - volcanology KW - single domains KW - volcanoes KW - Alaska KW - Southwestern Alaska KW - Honshu KW - gabbros KW - Aleutian Islands KW - Japan KW - amplitude KW - 20:Applied geophysics KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50166294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Subduction+zone+magnetic+anomalies%3B+characterization+of+source+rock+mafic+xenoliths%2C+Japan+and+Aleutian+Islands&rft.au=Warner%2C+Richard+D%3BWasilewski%2C+Peter+J%3BAnonymous&rft.aulast=Warner&rft.aufirst=Richard&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=471&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, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Adagak; Alaska; Aleutian Islands; amphibolites; amplitude; Asia; elastic waves; Far East; gabbros; Honshu; Ichinomegata Crater; igneous rocks; Iki Island; inclusions; Japan; Kanaga Islands; Kyushu; lamellae; mafic composition; magnetic anomalies; magnetic domains; magnetization; Magsat; metamorphic rocks; mineral assemblages; mineral composition; natural remanent magnetization; paleomagnetism; plutonic rocks; remanent magnetization; single domains; Southwestern Alaska; subduction zones; United States; volcanoes; volcanology; xenoliths ER - TY - JOUR T1 - The Global Change Data and Information System (GCDIS); the role of libraries in implementation and development AN - 50165504; 1995-022969 JF - Abstracts with Programs - Geological Society of America AU - Banholzer, Gordon S, Jr AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 104 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - libraries KW - United States Global Change Research Program KW - Earth Observation System Data and Information System KW - development KW - Interagency Working Group on Data Management for Global Change KW - Global Change Data and Information System KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50165504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+Global+Change+Data+and+Information+System+%28GCDIS%29%3B+the+role+of+libraries+in+implementation+and+development&rft.au=Banholzer%2C+Gordon+S%2C+Jr%3BAnonymous&rft.aulast=Banholzer&rft.aufirst=Gordon&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=104&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, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - development; Earth Observation System Data and Information System; Global Change Data and Information System; Interagency Working Group on Data Management for Global Change; libraries; United States; United States Global Change Research Program ER - TY - JOUR T1 - Diagenetic microcrystalline opal varieties from the Monterey Formation, CA; HRTEM study of structures and phase transformation mechanisms AN - 50159779; 1995-023010 JF - Abstracts with Programs - Geological Society of America AU - Cady, S L AU - Wenk, H R AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 112 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - silicates KW - X-ray diffraction data KW - silica minerals KW - mechanism KW - phase transitions KW - crystal growth KW - lamellae KW - Cenozoic KW - California KW - Monterey Formation KW - sedimentary rocks KW - opal-A KW - framework silicates KW - opal-C KW - opal-CT KW - chemically precipitated rocks KW - opal KW - TEM data KW - Miocene KW - porcellanite KW - order-disorder KW - Tertiary KW - precipitation KW - Neogene KW - diagenesis KW - cristobalite KW - chert KW - quartz KW - clastic rocks KW - 06A:Sedimentary petrology KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50159779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Diagenetic+microcrystalline+opal+varieties+from+the+Monterey+Formation%2C+CA%3B+HRTEM+study+of+structures+and+phase+transformation+mechanisms&rft.au=Cady%2C+S+L%3BWenk%2C+H+R%3BAnonymous&rft.aulast=Cady&rft.aufirst=S&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=112&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, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - California; Cenozoic; chemically precipitated rocks; chert; clastic rocks; cristobalite; crystal growth; diagenesis; framework silicates; lamellae; mechanism; Miocene; Monterey Formation; Neogene; opal; opal-A; opal-C; opal-CT; order-disorder; phase transitions; porcellanite; precipitation; quartz; sedimentary rocks; silica minerals; silicates; TEM data; Tertiary; United States; X-ray diffraction data ER - TY - JOUR T1 - Microbial mats; a context for early metazoan evolution AN - 50159349; 1995-027839 JF - Abstracts with Programs - Geological Society of America AU - Farmer, Jack D AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 174 PB - Geological Society of America (GSA), Boulder, CO VL - 26 IS - 7 SN - 0016-7592, 0016-7592 KW - photosynthesis KW - benthic taxa KW - communities KW - upper Precambrian KW - oxygen KW - Ediacaran KW - behavior KW - Vermes KW - fossilization KW - variations KW - aerobic environment KW - algal mats KW - Invertebrata KW - sedimentary structures KW - Neoproterozoic KW - Precambrian KW - laminations KW - Crustacea KW - biogenic structures KW - copepods KW - photochemistry KW - Proterozoic KW - biologic evolution KW - algal structures KW - adaptation KW - models KW - planar bedding structures KW - paleoenvironment KW - Arthropoda KW - Mandibulata KW - harpacticoids KW - anaerobic environment KW - Vendian KW - Metazoa KW - turbellarians KW - 10:Invertebrate paleontology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50159349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Microbial+mats%3B+a+context+for+early+metazoan+evolution&rft.au=Farmer%2C+Jack+D%3BAnonymous&rft.aulast=Farmer&rft.aufirst=Jack&rft.date=1994-01-01&rft.volume=26&rft.issue=7&rft.spage=174&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, 1994 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - adaptation; aerobic environment; algal mats; algal structures; anaerobic environment; Arthropoda; behavior; benthic taxa; biogenic structures; biologic evolution; communities; copepods; Crustacea; Ediacaran; fossilization; harpacticoids; Invertebrata; laminations; Mandibulata; Metazoa; models; Neoproterozoic; oxygen; paleoenvironment; photochemistry; photosynthesis; planar bedding structures; Precambrian; Proterozoic; sedimentary structures; turbellarians; upper Precambrian; variations; Vendian; Vermes ER - TY - JOUR T1 - Global climate model simulations of the middle Pliocene, continued... AN - 50152403; 1995-034632 JF - Open-File Report - U. S. Geological Survey AU - Chandler, Mark A Y1 - 1994 PY - 1994 DA - 1994 SP - 7 EP - 8 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - general circulation models KW - numerical models KW - middle Pliocene KW - paleohydrology KW - global KW - data processing KW - paleo-oceanography KW - paleoclimatology KW - PRISM KW - Cenozoic KW - Tertiary KW - hydrologic cycle KW - paleotemperature KW - Neogene KW - digital simulation KW - Pliocene KW - USGS KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50152403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Global+climate+model+simulations+of+the+middle+Pliocene%2C+continued...&rft.au=Chandler%2C+Mark+A&rft.aulast=Chandler&rft.aufirst=Mark&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - USGS workshop on Pliocene high-latitude climate records N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - Cenozoic; data processing; digital simulation; general circulation models; global; hydrologic cycle; middle Pliocene; Neogene; numerical models; paleo-oceanography; paleoclimatology; paleohydrology; paleotemperature; Pliocene; PRISM; Tertiary; USGS ER - TY - JOUR T1 - The Archean atmosphere; its composition and fate AN - 50139721; 1995-037007 JF - Developments in Precambrian Geology AU - Des Marais, David J A2 - Condie, K. C. Y1 - 1994 PY - 1994 DA - 1994 SP - 505 EP - 523 PB - Elsevier, Amsterdam VL - 11 SN - 0166-2635, 0166-2635 KW - processes KW - photosynthesis KW - Precambrian KW - oxygen KW - glaciation KW - isotopes KW - isotope ratios KW - oxidation KW - photochemistry KW - atmosphere KW - O-18/O-16 KW - stable isotopes KW - evolution KW - carbon dioxide KW - volatiles KW - paleoenvironment KW - precipitation KW - paleotemperature KW - Archean KW - chemical composition KW - geochemistry KW - changes KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50139721?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Developments+in+Precambrian+Geology&rft.atitle=The+Archean+atmosphere%3B+its+composition+and+fate&rft.au=Des+Marais%2C+David+J&rft.aulast=Des+Marais&rft.aufirst=David&rft.date=1994-01-01&rft.volume=11&rft.issue=&rft.spage=505&rft.isbn=0444816216&rft.btitle=&rft.title=Developments+in+Precambrian+Geology&rft.issn=01662635&rft_id=info:doi/ L2 - http://www.elsevier.com/wps/find/bookseriesdescription.librarians/BS_DPG/description LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 193 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Archean; atmosphere; carbon dioxide; changes; chemical composition; evolution; geochemistry; glaciation; isotope ratios; isotopes; O-18/O-16; oxidation; oxygen; paleoenvironment; paleotemperature; photochemistry; photosynthesis; Precambrian; precipitation; processes; stable isotopes; volatiles ER - TY - JOUR T1 - Crystallographic study of kirschsteinite exsolution lamellae in meteoritic olivines AN - 50135924; 1995-046671 JF - Abstracts of the ... General Meeting of the International Mineralogical Association AU - Mikouchi, T AU - Takeda, H AU - Miyamoto, M AU - McKay, G A AU - Ohsumi, K AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 277 PB - International Mineralogical Association, [location varies] VL - 16 KW - silicates KW - orientation KW - stony meteorites KW - Lewis Cliff Meteorites KW - LEW 86010 KW - angrite KW - olivine group KW - crystal structure KW - lamellae KW - achondrites KW - twinning KW - nesosilicates KW - meteorites KW - olivine KW - orthosilicates KW - kirschsteinite KW - lattice parameters KW - exsolution KW - crystallography KW - 05B:Petrology of meteorites and tektites KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50135924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+the+...+General+Meeting+of+the+International+Mineralogical+Association&rft.atitle=Crystallographic+study+of+kirschsteinite+exsolution+lamellae+in+meteoritic+olivines&rft.au=Mikouchi%2C+T%3BTakeda%2C+H%3BMiyamoto%2C+M%3BMcKay%2C+G+A%3BOhsumi%2C+K%3BAnonymous&rft.aulast=Mikouchi&rft.aufirst=T&rft.date=1994-01-01&rft.volume=16&rft.issue=&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+the+...+General+Meeting+of+the+International+Mineralogical+Association&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International Mineralogical Association, 16th general meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 7 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #03852 N1 - SubjectsTermNotLitGenreText - achondrites; angrite; crystal structure; crystallography; exsolution; kirschsteinite; lamellae; lattice parameters; LEW 86010; Lewis Cliff Meteorites; meteorites; nesosilicates; olivine; olivine group; orientation; orthosilicates; silicates; stony meteorites; twinning ER - TY - JOUR T1 - Ground water plume delineation using in-field direct push technology AN - 50107991; 1995-066934 JF - Ground Water Management AU - Ryan, John AU - Summerfield, Burton AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 431 EP - 445 PB - Water Well Journal Pub. Co., Dublin, OH VL - 18 SN - 1047-9023, 1047-9023 KW - soils KW - organic materials KW - water quality KW - technology KW - monitoring KW - pollution KW - remediation KW - ground water KW - volatiles KW - organic compounds KW - sampling KW - movement KW - volatile organic compounds KW - water resources KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50107991?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water+Management&rft.atitle=Ground+water+plume+delineation+using+in-field+direct+push+technology&rft.au=Ryan%2C+John%3BSummerfield%2C+Burton%3BAnonymous&rft.aulast=Ryan&rft.aufirst=John&rft.date=1994-01-01&rft.volume=18&rft.issue=&rft.spage=431&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Management&rft.issn=10479023&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eighth national outdoor action conference and exposition; aquifer remediation/ground water monitoring/geophysical methods N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 1 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ground water; instruments; monitoring; movement; organic compounds; organic materials; pollution; remediation; sampling; soils; technology; volatile organic compounds; volatiles; water quality; water resources ER - TY - JOUR T1 - Do increases in North Atlantic Deep Water formation always result in a warmer climate AN - 50096493; 1995-069691 JF - Program and Abstracts - American Quaternary Association. Conference AU - Webb, Robert S AU - Healy, Richard J AU - Rind, David H AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 181 PB - American Quaternary Association, Seattle, WA VL - 13 SN - 0741-059X, 0741-059X KW - genesis KW - general circulation models KW - ocean circulation KW - last glacial maximum KW - heat flux KW - North Atlantic Deep Water KW - climate-induced circulation KW - climate KW - temperature KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50096493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+-+American+Quaternary+Association.+Conference&rft.atitle=Do+increases+in+North+Atlantic+Deep+Water+formation+always+result+in+a+warmer+climate&rft.au=Webb%2C+Robert+S%3BHealy%2C+Richard+J%3BRind%2C+David+H%3BAnonymous&rft.aulast=Webb&rft.aufirst=Robert&rft.date=1994-01-01&rft.volume=13&rft.issue=&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+American+Quaternary+Association.+Conference&rft.issn=0741059X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Quaternary Association, 13th biennial meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - WA N1 - Last updated - 2012-06-07 N1 - CODEN - AMQUAM N1 - SubjectsTermNotLitGenreText - climate; climate-induced circulation; general circulation models; genesis; heat flux; last glacial maximum; North Atlantic Deep Water; ocean circulation; temperature ER - TY - JOUR T1 - A comprehensive framework for modeling soil genesis AN - 50080009; 1996-010338 JF - SSSA Special Publication AU - Levine, E R AU - Knox, R G A2 - Bryant, Ray B. A2 - Arnold, Richard W. Y1 - 1994 PY - 1994 DA - 1994 SP - 77 EP - 89 PB - Soil Science Society of America, Madison, WI VL - 39 SN - 1063-2565, 1063-2565 KW - soils KW - soil group KW - cycles KW - pedogenesis KW - soil profiles KW - data processing KW - prediction KW - ecosystems KW - simulation KW - models KW - computer programs KW - spatial variations KW - geographic information systems KW - stochastic processes KW - quantitative analysis KW - mathematical methods KW - classification KW - data bases KW - theoretical models KW - information systems KW - algorithms KW - design KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50080009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SSSA+Special+Publication&rft.atitle=A+comprehensive+framework+for+modeling+soil+genesis&rft.au=Levine%2C+E+R%3BKnox%2C+R+G&rft.aulast=Levine&rft.aufirst=E&rft.date=1994-01-01&rft.volume=39&rft.issue=&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=SSSA+Special+Publication&rft.issn=10632565&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Quantitative modeling of soil forming processes N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 31 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; classification; computer programs; cycles; data bases; data processing; design; ecosystems; geographic information systems; information systems; mathematical methods; models; pedogenesis; prediction; quantitative analysis; simulation; soil group; soil profiles; soils; spatial variations; stochastic processes; theoretical models ER - TY - JOUR T1 - The development of a coastal risk assessment database; vulnerability to sea-level rise in the U.S. Southeast AN - 50071251; 1996-013930 JF - Journal of Coastal Research AU - Gornitz, Vivien M AU - Daniels, Richard C AU - White, Tammy W AU - Birdwell, Kevin R A2 - Finkl, Charles W. Y1 - 1994 PY - 1994 DA - 1994 SP - 327 EP - 338 PB - Coastal Education and Research Foundation (CERF), Fort Lauderdale, FL VL - Special issue 12 SN - 0749-0208, 0749-0208 KW - United States KW - geologic hazards KW - erosion KW - data acquisition KW - Coastal Risk Assessment Database KW - data processing KW - subsidence KW - global change KW - erosion features KW - Gulf Coastal Plain KW - preventive measures KW - sea-level changes KW - geographic information systems KW - floods KW - data bases KW - coastal environment KW - risk assessment KW - information systems KW - storms KW - littoral erosion KW - hurricanes KW - global warming KW - Atlantic Coastal Plain KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50071251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Coastal+Research&rft.atitle=The+development+of+a+coastal+risk+assessment+database%3B+vulnerability+to+sea-level+rise+in+the+U.S.+Southeast&rft.au=Gornitz%2C+Vivien+M%3BDaniels%2C+Richard+C%3BWhite%2C+Tammy+W%3BBirdwell%2C+Kevin+R&rft.aulast=Gornitz&rft.aufirst=Vivien&rft.date=1994-01-01&rft.volume=Special+issue+12&rft.issue=&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Journal+of+Coastal+Research&rft.issn=07490208&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 49 N1 - PubXState - FL N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - SuppNotes - Special issue N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atlantic Coastal Plain; coastal environment; Coastal Risk Assessment Database; data acquisition; data bases; data processing; erosion; erosion features; floods; geographic information systems; geologic hazards; global change; global warming; Gulf Coastal Plain; hurricanes; information systems; littoral erosion; preventive measures; risk assessment; sea-level changes; storms; subsidence; United States ER - TY - JOUR T1 - The xenolith record; insights into the magnetic lithosphere AN - 1734268140; 2015-110358 AB - Xenolith magnetic records afford insight into the magnetization distributions in parts of the continental lithosphere that would otherwise be inaccessible. Thin section examination of the xenolith will provide evidence for any contamination by magma or other alterations. The thin section analysis allows credible interpretation of the magnetic properties of the xenolith. Given an ideal xenolith, the initial magnetic susceptibility measured in the laboratory at room temperature is what would be expected out to the Curie point. The remanence is a TRM, and therefore not what would be expected, for example, for a granulite xenolith located in the lower crust. Examples of different types of xenolith magnetic records are presented along with. examples of oxide alterations during xenolith ascent to illustrate that a frame-work is in place to argue for the credibility of the xenolith magnetic record. Magnetization levels (remanent and induced), Curie points, and bulk magnetic domain structure for deep crustal xenoliths are variable, but mafic types with moderate to strong magnetization are common. The xenolith record comes from worldwide locations and different tectonic settings. JF - Memoir - Geological Society of India AU - Wasilewski, Peter AU - Warner, Richard Y1 - 1994 PY - 1994 DA - 1994 SP - 65 EP - 80 PB - Geological Society of India, Bangalore VL - 29 SN - 0435-4001, 0435-4001 KW - demagnetization KW - mantle KW - magnetization KW - granulites KW - titanomagnetite KW - temperature KW - magnetic properties KW - spatial distribution KW - remanent magnetization KW - thermoremanent magnetization KW - metamorphic rocks KW - inclusions KW - oxides KW - lower crust KW - Curie point KW - xenoliths KW - thermal demagnetization KW - upper mantle KW - lithosphere KW - magnetic hysteresis KW - paleomagnetism KW - natural remanent magnetization KW - saturation magnetization KW - petrography KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734268140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Memoir+-+Geological+Society+of+India&rft.atitle=The+xenolith+record%3B+insights+into+the+magnetic+lithosphere&rft.au=Wasilewski%2C+Peter%3BWarner%2C+Richard&rft.aulast=Wasilewski&rft.aufirst=Peter&rft.date=1994-01-01&rft.volume=29&rft.issue=&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Memoir+-+Geological+Society+of+India&rft.issn=04354001&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-11-19 N1 - CODEN - GSINAZ N1 - SubjectsTermNotLitGenreText - crust; Curie point; demagnetization; granulites; inclusions; lithosphere; lower crust; magnetic hysteresis; magnetic properties; magnetization; mantle; metamorphic rocks; natural remanent magnetization; oxides; paleomagnetism; petrography; remanent magnetization; saturation magnetization; spatial distribution; temperature; thermal demagnetization; thermoremanent magnetization; titanomagnetite; upper mantle; xenoliths ER - TY - JOUR T1 - Ocean-atmosphere CO sub(2) exchange: An accessible lab simulation for considering biological effects AN - 16994089; 3634180 AB - Phytoplankton is considered a key component mediating the ocean-atmospheric exchange of carbon dioxide and oxygen. Lab simulations which model biological responses to atmospheric change are difficult to translate into natural settings owing in part to the vertical migration of phytoplankton. In the sea this vertical migration acts to regulate actual carbon dioxide consumption. To capture some critical properties of this vertical material transfer, we monitored the effects of atmospheric CO sub(2) on dense suspensions of bioconvecting microorganisms. Bioconvection refers to the spontaneous patterns of circulation which arise among such upwardly swimming cells as alga, protozoa, zoospore and large bacteria. Gravity, phototaxis and chemotaxis have all been implicated as affecting pattern-forming ability. The ability of a biologically active suspension to detect atmospheric changes offers a unique method to quantify organism adjustment and vertical migration. With increasing CO sub(2), bioconvection patterns in alga (P. parva) and protozoa (T. pyriformis) lose their robustness, and surface cell populations retreat from the highest CO sub(2) regions. Cell movement (both percent motile and mean velocity) generally diminishes. A general program of image analysis yields statistically significant variations in macroscopic migration patterns; both fractal dimension and various crystallographic parameters correlate strongly with carbon dioxide content. JF - Climatic Change AU - Noever, DA AU - Matsos, H C AU - Cronise, R J AU - Looger, L L AU - Relwani, R A AU - Nikora, VI AD - NASA Marshall Space Flight Cent., ES-76, Huntsville, AL 35812, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 299 EP - 320 VL - 27 IS - 3 SN - 0165-0009, 0165-0009 KW - Pollution Abstracts KW - air-water interactions KW - phytoplankton KW - bioindicators KW - carbon dioxide KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16994089?accountid=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=Climatic+Change&rft.atitle=Ocean-atmosphere+CO+sub%282%29+exchange%3A+An+accessible+lab+simulation+for+considering+biological+effects&rft.au=Noever%2C+DA%3BMatsos%2C+H+C%3BCronise%2C+R+J%3BLooger%2C+L+L%3BRelwani%2C+R+A%3BNikora%2C+VI&rft.aulast=Noever&rft.aufirst=DA&rft.date=1994-01-01&rft.volume=27&rft.issue=3&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&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 - air-water interactions; carbon dioxide; bioindicators; phytoplankton ER - TY - JOUR T1 - Linkage between Eurasian winter snow cover and regional Chinese summer rainfall AN - 16980483; 3628300 AB - An inverse relationship has been documented by previous studies between antecedent Eurasian winter snow cover (EWSC) and all-India summer monsoon rainfall. Because both China and India are strongly influenced by the Asian monsoon system, it may be reasonable to ask whether a similar relationship exists between the EWSC and summer rainfall over China. This study seeks an answer to this question. Only a weak interannual relationship is found between the EWSC and summer rainfall over China as a whole. This weak EWSC-rainfall linkage occurs only when the averaged rainfall over the entire country is used. By dividing the country into several geographical regions based on observed features in the interannual variability of rainfall, we find much stronger regional rainfall-EWSC relationships. A strong in-phase EWSC-rainfall relationship is found in southern and northern China, whereas an inverse EWSC-rainfall relationship appears in the western, central, and north-eastern parts of China. Thus, EWSC may be a useful predictor for regional Chinese summer rainfall, but not for rainfall over the country as a whole. JF - International Journal of Climatology AU - Yang, S AU - Xu, Lizhang AD - NASA/Goddard Space Flight Cent., Code 913, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 739 EP - 750 VL - 14 IS - 7 SN - 0899-8418, 0899-8418 KW - Water Resources Abstracts KW - monsoons KW - snow cover KW - rainfall KW - China, People's Rep. KW - regression analysis KW - India KW - climatic changes KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16980483?accountid=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=International+Journal+of+Climatology&rft.atitle=Linkage+between+Eurasian+winter+snow+cover+and+regional+Chinese+summer+rainfall&rft.au=Yang%2C+S%3BXu%2C+Lizhang&rft.aulast=Yang&rft.aufirst=S&rft.date=1994-01-01&rft.volume=14&rft.issue=7&rft.spage=739&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Climatology&rft.issn=08998418&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 - snow cover; rainfall; monsoons; climatic changes; regression analysis; China, People's Rep.; India ER - TY - JOUR T1 - Spring phytoplankton production in the western Ross Sea AN - 16972835; 3627417 AB - Coastal zone color scanner (CZCS) imagery of the western Ross Sea revealed the presence of an intense phytoplankton bloom covering > 106,000 square kilometers in early December 1978. This bloom developed inside the Ross Sea polynya, within 2 weeks of initial polynya formation in late November. Primary productivity calculated from December imagery (3.9 grams of carbon per square meter per day) was up to four times the values measured during in situ studies in mid-January to February 1979. Inclusion of this early season production yields a spring-to-summer estimate of 141 to 171 grams of carbon per square meter, three to four times the values previously reported for the western Ross Sea. JF - Science (Washington) AU - Arrigo, K R AU - McClain, C R AD - NASA, Goddard Space Flight Center, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 261 EP - 263 VL - 266 IS - 5183 SN - 0036-8075, 0036-8075 KW - multispectral scanners KW - plankton surveys KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - PS, Ross Sea KW - phytoplankton KW - algae KW - spring KW - Antarctica KW - algal blooms KW - remote sensing KW - O 1070:Ecology/Community Studies KW - Q1 08461:Plankton KW - D 04627:Algae/lichens KW - K 03001:Algae UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16972835?accountid=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=Science+%28Washington%29&rft.atitle=Spring+phytoplankton+production+in+the+western+Ross+Sea&rft.au=Arrigo%2C+K+R%3BMcClain%2C+C+R&rft.aulast=Arrigo&rft.aufirst=K&rft.date=1994-01-01&rft.volume=266&rft.issue=5183&rft.spage=261&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 - 2014-05-06 N1 - SubjectsTermNotLitGenreText - multispectral scanners; phytoplankton; algae; spring; plankton surveys; remote sensing; algal blooms; PS, Ross Sea; Antarctica; Marine ER - TY - BOOK T1 - Applied virtual reality in aerospace design AN - 16939448; 177123 AB - A Virtual Reality (VR) applications program has been under development at the Marshall Space Flight Center (MSFC) since 1989. The objectives of the MSFC VR Applications Program are to develop, assess, validate, and utilize VR in hardware development, operations development and support, mission operations training and science training. Before VR can be used with confidence in a particular application, VR must be validated for that class of applications. For that reason, specific validation studies for selected classes of applications have been proposed and are currently underway. These include macro-ergonomic 'control-room class' design analysis, Spacelab stowage reconfiguration training, a full-body micro-gravity functional reach simulator, a gross anatomy teaching simulator, and micro-ergonomic design analysis. This paper describes the MSFC VR Applications Program and the validation studies. JF - WESCON, LOS ANGELES, CA, (USA). pp. 378-383. 1994. AU - Hale, Joseph P Y1 - 1994 PY - 1994 DA - 1994 SP - 6 EP - 383 PB - WESCON, LOS ANGELES, CA, (USA) KW - Aerospace applications KW - Aerospace engineering KW - Computer hardware KW - Computer simulation KW - Ergonomics KW - Full body microgravity functional reach simulator KW - Gross anatomy teaching simulator KW - Human computer interaction KW - Macroergonomic design KW - Micro ergonomic design analysis KW - Spacelab stowage reconfiguration training KW - Validation studies KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 461.4:HUMAN ENGINEERING KW - W4 722.4:DIGITAL COMPUTERS AND SYSTEMS KW - W4 658:AEROSPACE ENGINEERING, GENERAL KW - W4 723.4:ARTIFICIAL INTELLIGENCE KW - W 30965:Miscellaneous, Reviews KW - W4 723.5:COMPUTER APPLICATIONS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16939448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Hale%2C+Joseph+P&rft.aulast=Hale&rft.aufirst=Joseph&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=378&rft.isbn=&rft.btitle=Applied+virtual+reality+in+aerospace+design&rft.title=Applied+virtual+reality+in+aerospace+design&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - BOOK T1 - Design and flight evaluation of visually-coupled symbology for integrated navigation and near-terrain flight guidance AN - 16922775; 162269 AB - NASA and the U.S. Army have designed, developed and flight evaluated a Computer Aiding for Low-Altitude Helicopter Flight (CALAHF) guidance system. This system provides guidance to the pilot for near-terrain covert helicopter operations. The system automates the processing of precision navigation information, helicopter mission requirements and terrain flight guidance. This automation is presented to the pilot through symbology on a helmet mounted display. The symbology is a 'pilot-centered' design which preserves pilot flexibility and authority over the CALAHF system's automation. An extensive flight evaluation of the system has been conducted using the U.S. Army's NUH-60 STAR (Systems Testbed for Avionics Research) research helicopter. The evaluations were flown over a multi-waypoint helicopter mission in rugged mountainous terrain. The system was evaluated at terrain clearance altitudes from 300 to 125 feet, and airspeeds from 40 to 110 knots. The results of these evaluations showed that the pilots could precisely follow the automation symbology while maintaining a high degree of situational awareness. JF - Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2218, pp. 161-172. 1994. AU - Swenson, Harry N AU - Zelenka, Richard E AU - Dearing, Munro G AU - Hardy, Gordon H AU - Clark, Raymond AU - Zirkler, Andre AU - Davis, Tom AU - Amatrudo, Gary Y1 - 1994 PY - 1994 DA - 1994 SP - 12 EP - 172 PB - SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, BELLINGHAM, WA, (USA) SN - 0819415227 KW - Near terrain flight guidance KW - Automation symbology KW - Situational awareness KW - Avionics KW - Air navigation KW - Electronic guidance systems KW - Human engineering KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 461.4:HUMAN ENGINEERING KW - W4 652.4:HELICOPTERS KW - W4 715.1:ELECTRONIC EQUIPMENT (NON-COMMUNICATION) KW - W 30965:Miscellaneous, Reviews KW - W4 652.3:AIRCRAFT INSTRUMENTS AND EQUIPMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16922775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Swenson%2C+Harry+N%3BZelenka%2C+Richard+E%3BDearing%2C+Munro+G%3BHardy%2C+Gordon+H%3BClark%2C+Raymond%3BZirkler%2C+Andre%3BDavis%2C+Tom%3BAmatrudo%2C+Gary&rft.aulast=Swenson&rft.aufirst=Harry&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=161&rft.isbn=0819415227&rft.btitle=Design+and+flight+evaluation+of+visually-coupled+symbology+for+integrated+navigation+and+near-terrain+flight+guidance&rft.title=Design+and+flight+evaluation+of+visually-coupled+symbology+for+integrated+navigation+and+near-terrain+flight+guidance&rft.issn=0277786X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - BOOK T1 - Distance perception of stereoscopically presented virtual objects optically superimposed on physical objects by a head-mounted see-through display AN - 16919482; 153095 AB - The influence of physically presented background stimuli on distance judgements to optically overlaid, stereoscopic virtual images has been studied using head-mounted stereoscopic, virtual image displays. Positioning of an opaque physical object either at the perceived depth of the virtual image or at a position substantially in front of it, has been observed to cause the virtual image to apparently move closer to the observer. In the case of physical objects positioned substantially in front of the virtual image, subjects often perceive the opaque object as transparent. Evidence is presented that the apparent change of position caused by interposition of the physical object is not influenced by the strengthening of occlusion cues but is influenced by motion of the physical objects which would attract the subjects ocular vergence. The observed effect appears to be associated with the relative conspicuousness of the overlaid virtual image and the background. This effect may be related to Foley's models of open-loop stereoscopic pointing errors which attributed the stereoscopic distance errors to misjudgment of a reference point for interpretation of retinal disparities. Some implications for the design of see-through displays for manufacturing will also be discussed briefly. JF - Human Factors and Ergonomics Society Annual Meeting. Proceedings. Vol. 2, pp. 1300-1304. 1994. AU - Ellis, Stephen R AU - Bucher, Urs J Y1 - 1994 PY - 1994 DA - 1994 SP - 5 EP - 1304 PB - HUMAN FACTORS AND ERGONOMICS SOCIETY, INC., SANTA MONICA, CA, (USA) KW - Assembly robots KW - Computer aided design KW - Computer software KW - Display devices KW - Distance perception KW - Head mounted see through display KW - Industrial robots KW - Manufacture KW - Occlusion clues KW - Open loop stereoscopic pointing errors KW - Position control KW - Stereoscopic virtual images KW - Systems analysis KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Vision KW - Errors KW - W4 461.4:HUMAN ENGINEERING KW - W4 722.2:COMPUTER PERIPHERAL EQUIPMENT KW - W4 731.5:ROBOTICS KW - W4 741.2:VISION KW - W4 723.5:COMPUTER APPLICATIONS KW - W 30965:Miscellaneous, Reviews KW - W4 731.3:SPECIFIC VARIABLES CONTROL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16919482?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Ellis%2C+Stephen+R%3BBucher%2C+Urs+J&rft.aulast=Ellis&rft.aufirst=Stephen&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=1300&rft.isbn=&rft.btitle=Distance+perception+of+stereoscopically+presented+virtual+objects+optically+superimposed+on+physical+objects+by+a+head-mounted+see-through+display&rft.title=Distance+perception+of+stereoscopically+presented+virtual+objects+optically+superimposed+on+physical+objects+by+a+head-mounted+see-through+display&rft.issn=01635182&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Earth science data for all: EOS and the EOS Data and Information System AN - 16916448; 3594591 AB - The NASA Earth Observing System (EOS) program addresses significant science questions, the answers to which bear directly on vitally important environmental policy issues. The goals of EOS are to obtain a scientific understanding of the Earth as a system and to develop the capability to predict environmental changes that may result from human activities. The entire suite of EOS-related endeavors - a comprehensive space-based observing system, a data and information system, and a multidisciplinary and interdisciplinary scientific research program that uses the data and information to improve our understanding of humankind's impact on climate and the Earth's environment - is a science and technology program in support of policy and resources decision-making. The observing portion of the program will acquire high-priority new measurements to combine with critical historical and contemporary data sets. The EOS Data and Information System (EOSDIS) will embody the state-of-the-art in information systems components and system design, and will make use of the most forward-looking information processing and management tools. It is an evolutionary system, beginning with an initial capability in 1994, and adding increasing functionality and capacity to accommodate data taken from EOS instruments as they are launched. Design precepts are based on modularity to allow easy infusion of the newest technologies as they emerge, and to allow the ability to adapt to maturing user requirements. JF - Photogrammetric Engineering and Remote Sensing AU - Price, R D AU - King, MD AU - Dalton, J T AU - Pedelty, K S AU - Ardanuy, P E AU - Hobish, M K AD - Mission to Planet Earth Off., EOS Project Sci. Off., NASA Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 277 EP - 286 VL - 60 IS - 3 SN - 0099-1112, 0099-1112 KW - Water Resources Abstracts KW - satellite technology KW - data storage and retrieval KW - data interpretation KW - environmental policy KW - remote sensing KW - SW 5040:Data acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16916448?accountid=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=Photogrammetric+Engineering+and+Remote+Sensing&rft.atitle=Earth+science+data+for+all%3A+EOS+and+the+EOS+Data+and+Information+System&rft.au=Price%2C+R+D%3BKing%2C+MD%3BDalton%2C+J+T%3BPedelty%2C+K+S%3BArdanuy%2C+P+E%3BHobish%2C+M+K&rft.aulast=Price&rft.aufirst=R&rft.date=1994-01-01&rft.volume=60&rft.issue=3&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Photogrammetric+Engineering+and+Remote+Sensing&rft.issn=00991112&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 - remote sensing; satellite technology; environmental policy; data interpretation; data storage and retrieval ER - TY - JOUR T1 - Real-time holographic image correction using bacteriorhodopsin AN - 16915896; 155811 AB - Application of bacteriorhodopsin (BR) to the problem of one-way coherent imaging through a thin time-varying phase aberration is reported. Results are presented of an experiment using a BR film as an updatable high resolution thin hologram for recording phase aberration information. Application of BR and the technique to imaging situations involving a time-varying phase aberration is indicated. JF - Applied Optics AU - Downie, John D AD - NASA/Ames Research Cent, Moffett Field, CA, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 4353 EP - 4357 PB - OPTICAL SOC OF AMERICA, WASHINGTON, DC, (USA) VL - 33 IS - 20 SN - 0003-6935, 0003-6935 KW - Aberrations KW - Bacteriorhodopsin KW - Biological materials KW - Image processing KW - Light modulators KW - Real time systems KW - Signal to noise ratio KW - Spatial light modulators KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 461.2:BIOLOGICAL MATERIALS KW - W4 722.4:DIGITAL COMPUTERS AND SYSTEMS KW - W4 743.1:HOLOGRAPHIC TECHNIQUES KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16915896?accountid=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=Applied+Optics&rft.atitle=Real-time+holographic+image+correction+using+bacteriorhodopsin&rft.au=Downie%2C+John+D&rft.aulast=Downie&rft.aufirst=John&rft.date=1994-01-01&rft.volume=33&rft.issue=20&rft.spage=4353&rft.isbn=&rft.btitle=&rft.title=Applied+Optics&rft.issn=00036935&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Image processing ER - TY - BOOK T1 - Remote sensing the susceptibility of cloud albedo to changes in drop concentration AN - 16915148; 3600443 AB - The role of clouds in reflecting solar radiation to space and thereby reducing surface heating is of critical importance to climate. Combustion processes that produce greenhouse gases also increase cloud condensation nuclei (CCN) concentrations which in turn increase cloud drop concentrations and thereby cloud albedo. A calculation of cloud susceptibility, defined in this work as the increase in albedo resulting from the addition of one cloud drop per cubic centimeter (as cloud liquid water content remains constant), is made through satellite remote sensing of cloud drop radius and optical thickness. The remote technique uses spectral channels of the Advance Very High Resolution Radiometer (AVHRR) instrument on board the NOAA polar orbiting satellites. An approximation for the effect of the atmosphere on the signal received by the AVHRR is included in the analysis. Marine stratus clouds, as well as being important modifiers of climate, are cleaner than continental clouds an so likely to be of higher susceptibility. Analysis of several stratus scenes, including some containing ship tracks, supports this expectation. JF - Atmospheric Research [ATMOS. RES.]. Vol. 34, no. 1-4. 1994. AU - Platnick, S AU - Twomey, S A2 - Waldvogel, A (ed) Y1 - 1994 PY - 1994 DA - 1994 KW - Water Resources Abstracts KW - albedo KW - satellite technology KW - climates KW - solar radiation KW - rain KW - remote sensing KW - SW 5040:Data acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16915148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Water+Resources+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Platnick%2C+S%3BTwomey%2C+S&rft.aulast=Platnick&rft.aufirst=S&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Remote+sensing+the+susceptibility+of+cloud+albedo+to+changes+in+drop+concentration&rft.title=Remote+sensing+the+susceptibility+of+cloud+albedo+to+changes+in+drop+concentration&rft.issn=01698095&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 - BOOK T1 - Man-systems integration standards development facility human factoring NASA's human factors document AN - 16912383; 153159 AB - NASA-STD-3000, the Man-Systems Integration Standard (MSIS), represents NASA's ongoing effort to capture the human engineering requirements related to crew interfaces found aboard manned spacecraft. With the basic volume (Volume I) serving as the requirement base and as individual volumes expanded to include more data, separate volumes have been developed for specific application to evolving problem, and this growing family of document is maintained through a logically organized and user-friendly format. With document format, as well as content, human factoring the MSIS has become a challenging but rewarding task. JF - Human Factors and Ergonomics Society Annual Meeting. Proceedings. Vol. 2, 987pp. 1994. AU - Booher, Cletis R AU - Minton, Jacquie Y1 - 1994 PY - 1994 DA - 1994 SP - 1 EP - 987 PB - HUMAN FACTORS AND ERGONOMICS SOCIETY, INC., SANTA MONICA, CA, (USA) KW - Formal logic KW - Human engineering KW - Human factoring KW - Human factors document KW - Man systems integration standards KW - Manned space flight KW - User friendly format KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Data processing KW - W4 461.4:HUMAN ENGINEERING KW - W4 723.2:DATA PROCESSING KW - W 30965:Miscellaneous, Reviews KW - W4 656.1:SPACE FLIGHT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16912383?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Booher%2C+Cletis+R%3BMinton%2C+Jacquie&rft.aulast=Booher&rft.aufirst=Cletis&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=987&rft.isbn=&rft.btitle=Man-systems+integration+standards+development+facility+human+factoring+NASA%27s+human+factors+document&rft.title=Man-systems+integration+standards+development+facility+human+factoring+NASA%27s+human+factors+document&rft.issn=01635182&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - BOOK T1 - Virtual reality as a human factors design analysis tool for architectural spaces - control rooms to space stations I: objective measures AN - 16912212; 153053 AB - One class of VR applications is as a Human Factors design analysis tool for work areas and other architectural spaces. In view of this, a study was conducted aimed toward comparing qualitative and quantitative judgements of two 'real' world control rooms including the corresponding virtual counterparts. The overall IVs include World and Room with Gender and World Order blocking variables. Room consists of range estimations comprising two IVs, and relative range estimations with corresponding two IVs. The results obtained from this study are significant in the decision process regarding the application of VR as a Human Factors analytical tool. JF - Human Factors and Ergonomics Society Annual Meeting. Proceedings. Vol. 1, pp. 275-279. 1994. AU - Hale, Joseph PII AU - Dittmar, Mary Lynne Y1 - 1994 PY - 1994 DA - 1994 SP - 5 EP - 279 PB - HUMAN FACTORS AND ERGONOMICS SOCIETY, INC., SANTA MONICA, CA, (USA) KW - Virtual reality applications KW - Human factors design analysis tool KW - Independent variables KW - Blocking variables KW - Range estimations KW - Architectural spaces KW - Man machine systems KW - Space stations KW - Estimation KW - Sensory perception KW - Response time (computer systems) KW - Human engineering KW - Computer hardware KW - Control rooms (power plants) KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 461.4:HUMAN ENGINEERING KW - W4 722.4:DIGITAL COMPUTERS AND SYSTEMS KW - W 30965:Miscellaneous, Reviews KW - W4 723.5:COMPUTER APPLICATIONS KW - W4 656.2:SPACE RESEARCH KW - W4 402.1:INDUSTRIAL AND AGRICULTURAL BUILDINGS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16912212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Hale%2C+Joseph+PII%3BDittmar%2C+Mary+Lynne&rft.aulast=Hale&rft.aufirst=Joseph&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=275&rft.isbn=&rft.btitle=Virtual+reality+as+a+human+factors+design+analysis+tool+for+architectural+spaces+-+control+rooms+to+space+stations+I%3A+objective+measures&rft.title=Virtual+reality+as+a+human+factors+design+analysis+tool+for+architectural+spaces+-+control+rooms+to+space+stations+I%3A+objective+measures&rft.issn=01635182&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - BOOK T1 - Temporal factors in aviation decision making AN - 16910638; 153235 AB - Time pressure has been found to reduce the quality of decision making by restricting consideration of information and options and by inducing strategy shifts. Time pressure is usually considered an external variable manipulated by the experimenter. In this paper we distinguish between externally-induced time pressures and crew-generated time pressures, and examine how crews can mitigate or exacerbate external pressures. The roles of both types of time pressures in crew decision making are examined in three air transport accidents and in crew performance in full-mission simulated flight. Implications for crew training are discussed. JF - Human Factors and Ergonomics Society Annual Meeting. Proceedings. Vol. 2, pp. 935-939. 1994. AU - Orasanu, Judith AU - Strauch, Barry Y1 - 1994 PY - 1994 DA - 1994 SP - 5 EP - 939 PB - HUMAN FACTORS AND ERGONOMICS SOCIETY, INC., SANTA MONICA, CA, (USA) KW - Air transport accidents KW - Air transportation KW - Aviation decision making KW - Computer simulation KW - Full mission simulated flight KW - Performance KW - Personnel training KW - Temporal factors KW - Time pressure KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Accidents KW - Personnel KW - W4 461.4:HUMAN ENGINEERING KW - W4 912.4:PERSONNEL KW - W4 914.1:ACCIDENTS AND ACCIDENT PREVENTION KW - W4 431.1:AIR TRANSPORTATION (GENERAL) KW - W4 723.5:COMPUTER APPLICATIONS KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16910638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Orasanu%2C+Judith%3BStrauch%2C+Barry&rft.aulast=Orasanu&rft.aufirst=Judith&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=935&rft.isbn=&rft.btitle=Temporal+factors+in+aviation+decision+making&rft.title=Temporal+factors+in+aviation+decision+making&rft.issn=01635182&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Contrasting conditions of surface water balance in wet years and dry years as a possible land surface-atmosphere feedback mechanism in the West African Sahel AN - 16910335; 3592171 AB - The climate of West Africa, in particular the Sahel, is characterized by multiyear persistence of anomalously wet or dry conditions. Its Southern Hemisphere counterpart, the Kalahari, lacks the persistence that is evident in the Sahel even though both regions are subject to similar large-scale forcing. It has been suggested that land surface-atmosphere feedback contributes to this persistence and to the severity of drought. In this study, surface energy and water balance are quantified for nine stations along a latitudinal transect that extends from the Sahara to the Guinea coast. In the wetter regions of West Africa, the difference between wet and dry years is primarily reflected in the magnitude of runoff. For the Sahel and drier locations, evapotranspiration and soil moisture are more sensitive to rainfall anomalies. The increase in evapotranspiration, and hence latent heating, over the Sahel in wet years alters the thermal structure and gradients of the overlying atmosphere and thus the strength of the African easterly jet (AEJ) at 700 mb. The difference between dry and wet Augusts corresponds to a decrease in magnitude of the AEJ at 15 degree N on the order of 2.6 m/s, which is consistent with previous studies of observed winds. Spatial patterns were also developed for surface water balance parameters for both West Africa and southern Africa. Over southern Africa, the patterns are not as spatially homogeneous as those over West Africa and are lower in magnitude, thus supporting the suggestion that the persistence of rainfall anomalies in the Sahel might be due, at least in part, to land-atmosphere feedback, and that the absence of such persistence in the Kalahari is a consequence of less significant changes in surface water and energy balance. JF - Journal of Climate AU - Lare, A R AU - Nicholson, SE AD - Appl. Res. Corp., NASA GSFC (Code 913), Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 653 EP - 668 VL - 7 IS - 5 SN - 0894-8755, 0894-8755 KW - West Africa, Sahel KW - Water Resources Abstracts KW - soil water KW - climatology KW - hydrologic budget KW - air-earth interfaces KW - precipitation KW - surface water KW - evapotranspiration KW - energy KW - drought KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16910335?accountid=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=Contrasting+conditions+of+surface+water+balance+in+wet+years+and+dry+years+as+a+possible+land+surface-atmosphere+feedback+mechanism+in+the+West+African+Sahel&rft.au=Lare%2C+A+R%3BNicholson%2C+SE&rft.aulast=Lare&rft.aufirst=A&rft.date=1994-01-01&rft.volume=7&rft.issue=5&rft.spage=653&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 - 2011-12-13 N1 - SubjectsTermNotLitGenreText - climatology; surface water; hydrologic budget; energy; soil water; evapotranspiration; air-earth interfaces; precipitation; drought ER - TY - BOOK T1 - Visual-motion cueing in altitude and yaw control AN - 16909930; 153156 AB - The contribution of platform motion and visual level-of-detail (LOD) cueing to tasks that required altitude or/and yaw control in a simulated AH-64 Apache helicopter was examined in a research conducted using the Vertical Motion Simulator at the NASA Ames Research Center. Within the altitude control tasks the LOD manipulation caused optical density to change across altitudes by a small, moderate, or large amount; while platform motion was either present or absent. As a result, the tasks showed that both constant optical density and platform motion improved altitude awareness in an altitude repositioning task, while the presence of platform motion also led to improved performance in a vertical rate control task. JF - Human Factors and Ergonomics Society Annual Meeting. Proceedings. Vol. 2, 988pp. 1994. AU - Johnson, Walter W AU - Schroeder, Jeffery A Y1 - 1994 PY - 1994 DA - 1994 SP - 1 EP - 988 PB - HUMAN FACTORS AND ERGONOMICS SOCIETY, INC., SANTA MONICA, CA, (USA) KW - Visual motion cueing KW - Altitude and yaw control KW - Level of detail manipulation KW - Platform motion KW - Altitude awareness KW - Yaw control tasks KW - Vertical motion simulator KW - Motion control KW - Ground effect KW - Helicopters KW - Density (optical) KW - Manipulators KW - Performance KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 461.4:HUMAN ENGINEERING KW - W4 652.4:HELICOPTERS KW - W4 943.2:MECHANICAL VARIABLES MEASUREMENTS KW - W 30965:Miscellaneous, Reviews KW - W4 651.1:AERODYNAMICS (GENERAL) KW - W4 652.3:AIRCRAFT INSTRUMENTS AND EQUIPMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16909930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Johnson%2C+Walter+W%3BSchroeder%2C+Jeffery+A&rft.aulast=Johnson&rft.aufirst=Walter&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=988&rft.isbn=&rft.btitle=Visual-motion+cueing+in+altitude+and+yaw+control&rft.title=Visual-motion+cueing+in+altitude+and+yaw+control&rft.issn=01635182&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Northern forest classification using temporal multifrequency and multipolarimetric SAR images AN - 16905072; 3591761 AB - Characterizing forest ecosystem dynamics for global change studies requires updated knowledge in terms of species composition, carbon storage, and biophysical functioning. Often, significant areas of forest are obscured by clouds or are under reduced solar illumination conditions, which limit acquisition of optical satellite data. Synthetic aperture radar (SAR) images, however, can be acquired under these conditions. Several SAR image data sets were acquired over the Northern Experimental Forest near Howland, Maine as part of the Forest Ecosystem Dynamics-Multisensor Aircraft Campaign. A SAR data processing and analysis sequence, from calibration through classification, is described. The usefulness of multifrequency temporal polarimetric SAR image data for identifying ecosystem classes is discussed. Our results show that with principal component analysis of temporal data sets (winter and late summer) SAR images can be classified into general forest categories such as softwood, hardwood, regeneration, and clearing with better than 80% accuracy. Other nonforest classes such as bogs, wetlands, grass, and water were also accurately classified. Classifications from single date images suffered in accuracy. The winter image had significant confusion of softwoods and hardwoods with a strong tendency to overestimate hardwoods. Modeling results suggest that increased double-bounce scattering of the radar beam from conifer stands because of lowered dielectric constant of frozen needles and branches was the contributing factor for the misclassifications. JF - Remote Sensing of Environment AU - Ranson, K J AU - Sun, Guoqing AD - Code 923, NASA/GSFC, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 142 EP - 153 VL - 47 IS - 2 SN - 0034-4257, 0034-4257 KW - Ecology Abstracts KW - forests KW - USA, Maine KW - remote sensing KW - D 04125:Temperate forests KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16905072?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Northern+forest+classification+using+temporal+multifrequency+and+multipolarimetric+SAR+images&rft.au=Ranson%2C+K+J%3BSun%2C+Guoqing&rft.aulast=Ranson&rft.aufirst=K&rft.date=1994-01-01&rft.volume=47&rft.issue=2&rft.spage=142&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - USA, Maine; remote sensing; forests ER - TY - JOUR T1 - Multivariate analysis of AVIRIS data for canopy biochemical estimation along the Oregon transect AN - 16904570; 3590538 AB - High spectral resolution data from the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) acquired over several forest stands in west-central Oregon were analyzed with respect to variations in forest canopy biochemical content (kg ha super(-1)), foliar biochemical concentration (mg cm super(2) leaf area), and leaf area index (LAI). The Lowtran-7 atmospheric radiative transfer code was used to convert AVIRIS at-sensor radiance into reflectance factor. The correlation of reflectance factor and first-difference AVIRIS spectra with total nitrogen (TN), lignin, starch, total chlorophyll content (kg ha super(-1)), and LAI is presented. Correlogram structure in the 1200-2400 nm region is compared with the occurrence of known absorption features associated with organic molecular bonds which comprise foliar biochemical constituents. Regression equations relating the first-difference AVIRIS data to chemical variables and LAI were developed. The chlorophyll red edge spectral region was strongly related to LAI, canopy TN content, and canopy chlorophyll content. Generally good correspondence was found between wavelength selections for TN and lignin (concentration and content) and overtones of fundamental C-H and N-H absorptance features. The AVIRIS data were not significantly correlated with either starch concentration or starch content, although wavelength selections for starch were consistent with those made in previous laboratory-based studies. JF - Remote Sensing of Environment AU - Johnson, L F AU - Hlavka, CA AU - Peterson, D L AD - NASA/Ames, M.S. 242-4, Moffett Field, CA 94035-1000, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 216 EP - 230 VL - 47 IS - 2 SN - 0034-4257, 0034-4257 KW - Ecology Abstracts KW - forests KW - USA, Oregon KW - remote sensing KW - D 04125:Temperate forests KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16904570?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Multivariate+analysis+of+AVIRIS+data+for+canopy+biochemical+estimation+along+the+Oregon+transect&rft.au=Johnson%2C+L+F%3BHlavka%2C+CA%3BPeterson%2C+D+L&rft.aulast=Johnson&rft.aufirst=L&rft.date=1994-01-01&rft.volume=47&rft.issue=2&rft.spage=216&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - USA, Oregon; remote sensing; forests ER - TY - JOUR T1 - Comparative study of low and high temperature hydrous pyrolysis products of monoglycerol diether lipid from archaebacteria AN - 16903221; 144776 AB - The effect of thermal stress on the ether linkage (C-O-C) of archaebacterial glycerol ether lipid was examined by hydrous pyrolysis-gas chromatography/mass spectrometry. At a temperature of 330 degree C, hydrous pyrolysis in the presence of clay mineral (montmorillonite) resulted in the formation of dihydrophytol C sub(20)H sub(41)OH, phytene C sub(20)H sub(40) and pristane C sub(19)H sub(40). Decreasing the pyrolysis temperature to 150 degree C resulted in the formation of dihydrophytol (C sub(20)H sub(41)OH) and mono-alkyl glycerol ether C sub(23)H sub(48)O sub(3) only. Compared to flash pyrolysis, hydrous pyrolysis required a lower temperature for the ether bond cleavage but a longer time interval of the order of several hours was applied. At higher temperatures the activation energy may be sufficient for the cleavage of the C-C bond of monoglycerol diether lipid, and therefore more than one pathway of hydrocarbon formation is possible. JF - Journal of Analytical and Applied Pyrolysis AU - Navale, Vivek AD - NASA/GSFC-Hughes, Greenbelt, MD, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 33 EP - 43 VL - 29 IS - 1 SN - 0165-2370, 0165-2370 KW - Activation energy KW - Archaebacteria KW - Clay minerals KW - Cleavage KW - Hydrous pyrolysis products KW - Mass spectrometry KW - Monoglycerol diether lipid KW - Thermal effects KW - Thermal stress KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Bacteria KW - Hydrocarbons KW - Gas chromatography KW - Lipids KW - Ethers KW - W4 641.1:THERMODYNAMICS KW - W4 802.2:CHEMICAL REACTIONS KW - W4 461.9:BIOLOGY KW - W4 802.3:CHEMICAL OPERATIONS KW - W4 804.1:ORGANIC COMPOUNDS KW - W 30965:Miscellaneous, Reviews KW - W4 482.2:MINERALS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16903221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Analytical+and+Applied+Pyrolysis&rft.atitle=Comparative+study+of+low+and+high+temperature+hydrous+pyrolysis+products+of+monoglycerol+diether+lipid+from+archaebacteria&rft.au=Navale%2C+Vivek&rft.aulast=Navale&rft.aufirst=Vivek&rft.date=1994-01-01&rft.volume=29&rft.issue=1&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Journal+of+Analytical+and+Applied+Pyrolysis&rft.issn=01652370&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Bacteria; Gas chromatography; Hydrocarbons; Lipids; Ethers ER - TY - JOUR T1 - Updated thermal model using simplified short-wave radiosity calculations AN - 16901829; 3590542 AB - An extension to a forest canopy thermal radiance model is described that computes the short-wave energy flux absorbed within the canopy by solving simplified radiosity equations describing flux transfers between canopy ensemble classes partitioned by vegetation layer and leaf slope. Integrated short-wave reflectance and transmittance factors obtained from measured leaf optical properties were found to be nearly equal for the canopy studied. Short-wave view factor matrices were approximated by combining the average leaf scattering coefficient with the long-wave view factor matrices already incorporated in the model. Both the updated and original models were evaluated for a dense spruce-fir forest study site in Central Maine. Canopy short-wave absorption coefficients estimated from detailed Monte Carlo ray tracing calculations were 0.60, 0.04, and 0.03 for the top, middle, and lower canopy layers corresponding to leaf area indices of 4.0, 1.05, and 0.25. The simplified radiosity technique yielded analogous absorption values of 0.55, 0.03, and 0.01. The resulting root mean square error in modeled versus measured canopy temperatures for all layers was less than 1 degree C with either technique. Maximum error in predicted temperature using the simplified radiosity technique was approximately 2 degree C during peak solar heating. JF - Remote Sensing of Environment AU - Smith, JA AU - Goltz, S M AD - Code 920, Lab. Terr. Phys., NASA/GSFC, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 167 EP - 175 VL - 47 IS - 2 SN - 0034-4257, 0034-4257 KW - Ecology Abstracts KW - models KW - forests KW - USA, Maine KW - remote sensing KW - D 04125:Temperate forests KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16901829?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Updated+thermal+model+using+simplified+short-wave+radiosity+calculations&rft.au=Smith%2C+JA%3BGoltz%2C+S+M&rft.aulast=Smith&rft.aufirst=JA&rft.date=1994-01-01&rft.volume=47&rft.issue=2&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - USA, Maine; remote sensing; forests; models ER - TY - JOUR T1 - Reflectance anisotropy for a spruce-hemlock forest canopy AN - 16901792; 3590536 AB - The bidirectional reflectance distribution characteristics of a spruce-hemlock forest were studied during field campaigns conducted in August-September of two different years using the three-channel PARABOLA radiometer system and a SE590 spectrometer mounted for sampling above a forest canopy. Canopy bidirectional reflectance data were acquired under clear, cloudless sky conditions over a large range of solar zenith angles. Pyranometer measurements of the total hemispherical upwelling and downwelling solar radiation above and below the forest canopy were simultaneously acquired. In addition, the PARABOLA instrument was deployed at different heights within the canopy, under overcast sky conditions, to measure the directional downward spectral radiation transmitted. The highly absorbing forest canopy, with a total plant area index of 3.9, reflected only similar to 2.5% of the red (0.662 mu m) hemispherical irradiance. Reflectances for wavebands in the photosynthetically active radiation (0.4-0.7 mu m), the near-infrared (NIR, 0.826 mu m), and the shortwave infrared (SWIR, 1.658 mu m) were approximately 3%, 26%, and 15%, respectively. The bidirectional spectral reflectance factors in the solar principal plane were highly anisotropic, while those in the plane perpendicular to the solar principal plane were much closer to Lambertian. The forwardscatter was not much greater than the nadir reflectance, differing from the usual dense vegetative cover cases previously examined, especially for the NIR waveband. The hot spot maximum reflectance, occurring at the retrosolar view angle, was pronounced in all three wavebands. This prominent hot spot effect has not been observed for the NIR in other vegetation canopy types (e.g., grasslands, agricultural crops, and semiarid and desert scrub). View angle effects were more prominent than solar zenith angle effects, except at large solar zenith angles. Hemispherical spectral reflectance factors and albedo increased with increases in solar zenith angle. Substantial variation was observed in the normalized difference vegetation index (NDVI) for different view and solar zenith angles with a nominal value of 0.75. JF - Remote Sensing of Environment AU - Deering, D W AU - Middleton, E M AU - Eck, T F AD - NASA/GSFC, Code 923, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 242 EP - 260 VL - 47 IS - 2 SN - 0034-4257, 0034-4257 KW - Ecology Abstracts KW - forests KW - Picea KW - Tsuga KW - remote sensing KW - D 04125:Temperate forests KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16901792?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Reflectance+anisotropy+for+a+spruce-hemlock+forest+canopy&rft.au=Deering%2C+D+W%3BMiddleton%2C+E+M%3BEck%2C+T+F&rft.aulast=Deering&rft.aufirst=D&rft.date=1994-01-01&rft.volume=47&rft.issue=2&rft.spage=242&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - Tsuga; Picea; remote sensing; forests ER - TY - JOUR T1 - Multispectral bidirectional reflectance of northern forest canopies with the Advanced Solid-State Array Spectroradiometer (ASAS) AN - 16898661; 3590534 AB - Understanding the bidirectional reflectance characteristics of forest canopies is important for relating remote sensing observations to biomass, species, stand structure, and albedo. Studies of the directional scattering of forest canopies have been limited in the past because of difficulties in suspending instruments over tall canopies or by being restricted to airborne scanning systems. In this article we discuss the use of the Advanced Solid-State Array Spectroradiometer (ASAS) to measure the bidirectional reflectance of several diverse forest canopies. ASAS data were acquired in 1989 and 1990 as part of an extensive field measurement campaign at International Paper's Northern Experimental Forest (NEF) located near Howland, Maine. Multiangle data sets were acquired for several sites under clear sky conditions and at view azimuths parallel, oblique, and perpendicular to the principal plane of the sun. The sensor radiance data for several surface types including forest stands and openings were converted to bidirectional reflectance using an atmospheric correction algorithm and optical thickness measurements. In addition, photosynthetically active radiation (PAR) hemispherical reflectance (albedo) was calculated from the corrected ASAS data and compared to a vegetation index. Highest observed reflectance factors were recorded in or near the solar principal plane at viewing geometries approaching the antisolar direction. JF - Remote Sensing of Environment AU - Ranson, K J AU - Irons, J R AU - Williams, D L AD - NASA/GSFC, Code 923, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 276 EP - 289 VL - 47 IS - 2 SN - 0034-4257, 0034-4257 KW - Ecology Abstracts KW - forests KW - USA, Maine KW - reflectance KW - remote sensing KW - D 04140:Taiga/tundra KW - D 04125:Temperate forests KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16898661?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Multispectral+bidirectional+reflectance+of+northern+forest+canopies+with+the+Advanced+Solid-State+Array+Spectroradiometer+%28ASAS%29&rft.au=Ranson%2C+K+J%3BIrons%2C+J+R%3BWilliams%2C+D+L&rft.aulast=Ranson&rft.aufirst=K&rft.date=1994-01-01&rft.volume=47&rft.issue=2&rft.spage=276&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - USA, Maine; remote sensing; forests; reflectance ER - TY - CONF T1 - Physical and optical/radiative properties of stratospheric aerosols AN - 16896906; 3595618 AB - Small amounts of light absorbing impurities affect the aerosol single scatter albedos and thereby the warming/cooling potential in the atmosphere. We have determined the abundance of light-scattering sulfuric acid (H sub(2)SO sub(4)/H sub(2)O) and light-absorbing black carbon aerosol (BCA) in Spring 1992 in the arctic stratosphere by sampling with impactors and determining particle sizes and morphologies by scanning electron microscopy. JF - Journal of Aerosol Science AU - Pueschel, R F AU - Kinne, SA Y1 - 1994 PY - 1994 DA - 1994 VL - 25 KW - Pollution Abstracts KW - particle size KW - sulfuric acid KW - physicochemical properties KW - optical analysis KW - light scattering KW - soot KW - stratosphere KW - solar radiation KW - aerosols KW - air sampling KW - Arctic KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16896906?accountid=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=Journal+of+Aerosol+Science&rft.atitle=Physical+and+optical%2Fradiative+properties+of+stratospheric+aerosols&rft.au=Pueschel%2C+R+F%3BKinne%2C+SA&rft.aulast=Pueschel&rft.aufirst=R&rft.date=1994-01-01&rft.volume=25&rft.issue=&rft.spage=no.+1+Sul&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aerosol+Science&rft.issn=00218502&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 - Neutral buoyancy evaluation of extravehicular activity assembly of a large precision reflector AN - 16896541; 141966 AB - A procedure that enables astronauts in extravehicular activity (EVA) to perform efficient on-orbit assembly of large paraboloidal precision reflectors is presented. The procedure and associated hardware are verified in simulated 0-g (neutral buoyancy) assembly tests of a 14-m-diam precision reflector mockup. The test article represents a precision reflector having a reflective surface that is segmented into 37 individual panels. The panels are supported on a doubly curved tetrahedral truss consisting of 315 struts. The entire truss and seven reflector panels were assembled in 3 h and 7 min by two pressure-suited test subjects. The average time to attach a panel was 2 min and 3 s. These efficient assembly times were achieved because all hardware and assembly procedures were designed to be compatible with EVA assembly capabilities. JF - Journal of Spacecraft and Rockets AU - Heard, Walter LJr AU - Lake, Mark S AD - NASA Langley Research Cent, Hampton, VA, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 569 EP - 577 VL - 31 IS - 4 SN - 0022-4650, 0022-4650 KW - Astronauts KW - Extravehicular activity (EVA) KW - Human engineering KW - Manned space flight KW - Mirrors KW - Orbits KW - Paraboloidal precision reflectors KW - Space research KW - Structural panels KW - Trusses KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Risk assessment KW - Costs KW - Assembly KW - W4 461.4:HUMAN ENGINEERING KW - W4 741.1:LIGHT/OPTICS KW - W4 914:SAFETY ENGINEERING KW - W4 408.2:STRUCTURAL MEMBERS AND SHAPES KW - W 30965:Miscellaneous, Reviews KW - W4 656.1:SPACE FLIGHT KW - W4 656.2:SPACE RESEARCH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16896541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Spacecraft+and+Rockets&rft.atitle=Neutral+buoyancy+evaluation+of+extravehicular+activity+assembly+of+a+large+precision+reflector&rft.au=Heard%2C+Walter+LJr%3BLake%2C+Mark+S&rft.aulast=Heard&rft.aufirst=Walter&rft.date=1994-01-01&rft.volume=31&rft.issue=4&rft.spage=569&rft.isbn=&rft.btitle=&rft.title=Journal+of+Spacecraft+and+Rockets&rft.issn=00224650&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Costs; Risk assessment; Assembly ER - TY - JOUR T1 - Gopher tortoise (Gopherus polyphemus) densities in coastal scrub and Slash pine flatwoods in Florida AN - 16895613; 3588777 AB - Densities of gopher tortoises were compared with habitat characteristics in scrub and in flatwood habitats on the Kennedy Space Center, Florida. Tortoises were distributed widely among habitat types and did not have higher densities in well-drained (oak-palmetto) than in poorly-drained (saw palmetto) habitats. Fall densities of tortoises ranged from a mean of 2.7 individuals/ha in disturbed habitat to 0.0 individuals/ha in saw palmetto habitat. Spring densities of tortoises ranged from a mean of 2.5 individuals/ha in saw palmetto habitat to 0.7 individuals/ha in oak-palmetto habitat. Densities of tortoises were correlated positively with the percent herbaceous cover, an indicator of food resources. Plots were divided into three burn classes; these were areas burned within three years, burned four to seven years, and unburned for more than seven years prior to the study. Relationships between densities of tortoises and time-since-fire classes were inconsistent. JF - Journal of Herpetology AU - Breininger AU - Schmalzer, P A AU - Hinkle, C R AD - Bionetics Corp., NASA Biomed. Oper. and Res. Off., Mail Code BIO-2, John F. Kennedy Space Cent., FL 32899, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 60 EP - 65 VL - 28 IS - 1 SN - 0022-1511, 0022-1511 KW - Ecology Abstracts KW - population density KW - USA, Florida KW - habitat preferences KW - Gopherus polyphemus KW - D 04670:Reptiles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16895613?accountid=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=Journal+of+Herpetology&rft.atitle=Gopher+tortoise+%28Gopherus+polyphemus%29+densities+in+coastal+scrub+and+Slash+pine+flatwoods+in+Florida&rft.au=Breininger%3BSchmalzer%2C+P+A%3BHinkle%2C+C+R&rft.aulast=Breininger&rft.aufirst=&rft.date=1994-01-01&rft.volume=28&rft.issue=1&rft.spage=60&rft.isbn=&rft.btitle=&rft.title=Journal+of+Herpetology&rft.issn=00221511&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 - Gopherus polyphemus; USA, Florida; population density; habitat preferences ER - TY - JOUR T1 - Metabolic activity of microorganisms in evaporites AN - 16885381; 3580095 AB - Crystalline salt is generally considered so hostile to most forms of life that it has been used for centuries as a preservative. Here, we present evidence that prokaryotes inhabiting a natural evaporite crust of halite and gypsum are metabolically active while inside the evaporite for at least 10 months. In situ measurements demonstrated that some of these "endoevaporitic" microorganisms (probably the cyanobacterium Synechococcus Naegeli) fixed carbon and nitrogen. Denitrification was not observed. Our results quantified the slow microbial activity that can occur in salt crystals. Implications of this study include the possibility that microorganisms found in ancient evaporite deposits may have been part of an evaporite community. JF - Journal of Phycology AU - Rothschild, L J AU - Giver, L J AU - White, M R AU - Mancinelli, R L AD - Mail Stop 239-12, NASA-Ames Res. Cent., Moffett Field, CA 94035-1000, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 431 EP - 438 VL - 30 IS - 3 SN - 0022-3646, 0022-3646 KW - evaporites KW - gypsum KW - halite KW - sodium chloride KW - Ecology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - Mexico, Baja California KW - photosynthesis KW - metabolism KW - Brackish KW - Synechococcus KW - nitrogen fixation KW - carbon fixation KW - ISE, Mexico, Baja California Sur, Guerrero Negro KW - Aphanothece halophytica KW - Cyanophyta KW - microorganisms KW - K 03009:Algae KW - O 1070:Ecology/Community Studies KW - Q1 08226:Physiology, biochemistry, biophysics KW - O 1010:Viruses, Bacteria, Protists, Fungi and Plants KW - D 04627:Algae/lichens KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16885381?accountid=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=Journal+of+Phycology&rft.atitle=Metabolic+activity+of+microorganisms+in+evaporites&rft.au=Rothschild%2C+L+J%3BGiver%2C+L+J%3BWhite%2C+M+R%3BMancinelli%2C+R+L&rft.aulast=Rothschild&rft.aufirst=L&rft.date=1994-01-01&rft.volume=30&rft.issue=3&rft.spage=431&rft.isbn=&rft.btitle=&rft.title=Journal+of+Phycology&rft.issn=00223646&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 - photosynthesis; sodium chloride; gypsum; metabolism; carbon fixation; evaporites; nitrogen fixation; halite; microorganisms; Synechococcus; Aphanothece halophytica; Cyanophyta; Mexico, Baja California; ISE, Mexico, Baja California Sur, Guerrero Negro; Marine; Brackish ER - TY - JOUR T1 - Oceanic fronts in the northeastern Caribbean revealed by satellite ocean colour imaging AN - 16882838; 3579984 AB - Satellite imagery has provided the first synoptic view of large-scale oceanographic parameters. Global estimates of phytoplankton pigment concentration have been obtained using the Coastal Zone Color Scanner (CZCS), the first and only sensor deployed in space dedicated to measuring ocean colour. The CZCS was launched aboard the Nimbus-7 satellite in Oct 1978 and operated successfully until Jun 1986, acquiring over 66,000 images. JF - International Journal of Remote Sensing AU - Armstrong, R A AD - NASA Ames Res. Cent., Mail Stop 242-4, Moffett Field, CA 94035, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 1169 EP - 1171 VL - 15 IS - 6 SN - 0143-1161, 0143-1161 KW - ASW, Caribbean KW - chlorophyll KW - chlorophylls KW - color KW - meteorological data collections KW - oceanic fronts KW - satellite sensing KW - satellite technology KW - water masses KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - ocean circulation KW - phytoplankton KW - oceanography KW - coastal waters KW - weather KW - remote sensing KW - baseline studies KW - O 2010:Physical Oceanography KW - Q2 09393:Remote geosensing KW - SW 5040:Data acquisition KW - Q2 09146:TSD distribution, water masses and circulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16882838?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=Oceanic+fronts+in+the+northeastern+Caribbean+revealed+by+satellite+ocean+colour+imaging&rft.au=Armstrong%2C+R+A&rft.aulast=Armstrong&rft.aufirst=R&rft.date=1994-01-01&rft.volume=15&rft.issue=6&rft.spage=1169&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - ocean circulation; coastal waters; phytoplankton; oceanic fronts; weather; water masses; satellite sensing; chlorophylls; baseline studies; oceanography; remote sensing; satellite technology; color; chlorophyll ER - TY - JOUR T1 - Overview of the Oregon Transect Ecosystem Research Project AN - 16876416; 3582746 AB - The Oregon Transect Ecosystem Research (OTTER) project is a study of ecosystem functions in coniferous forests using the methods of computer modeling, experimental and theoretical remote sensing, and ecological field and laboratory techniques. The study is focused on predicting the major fluxes of carbon, nitrogen, and water, and the factors that dynamically regulate them. The OTTER project was conceived to test two major questions: (1) Can a generalized ecosystem simulation model, designed to use mainly parameters available from remote sensing, predict the functioning of forests across an environmentally variable region? and (2) To what extent can the variables required by this model be derived from remotely sensed data? The scientific objectives and scope of the project demanded that a coordinated effort be made to link ground measurements with remote sensing and modeling requirements. OTTER was selected as a focus for a National Aeronautics and Space Administration (NASA)-sponsored Multi-sensor Aircraft Campaign (MAC; combining NASA aircraft and sensors with those of others) on the basis of experience gained in past ecosystem studies and remote-sensing projects, and the importance of the OTTER objectives to NASA's long-range science goals and plans. Having several independent approaches available, both on the ground and from various remote-sensing platforms, proved valuable in estimating and validating many of the critical variables. This experience and cross comparison should help simplify future studies of a similar nature. Edited data sets from the OTTER project are now available to the scientific community on optical disks or via on-line data banks at NASA (Washington, D.C., USA) and Oregon State University (Corvallis, Oregon, USA). JF - Ecological Applications AU - Peterson, D L AU - Waring, R H AD - Ecosyst. Sci. and Technol. Branch, NASA Ames Res. Cent., Moffett Field, California 94035, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 211 EP - 225 VL - 4 IS - 2 SN - 1051-0761, 1051-0761 KW - Oregon Transect Ecosystem Research KW - (OTTER) Project KW - Ecology Abstracts KW - forests KW - ecosystem analysis KW - research programs KW - USA, Oregon KW - remote sensing KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16876416?accountid=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=Ecological+Applications&rft.atitle=Overview+of+the+Oregon+Transect+Ecosystem+Research+Project&rft.au=Peterson%2C+D+L%3BWaring%2C+R+H&rft.aulast=Peterson&rft.aufirst=D&rft.date=1994-01-01&rft.volume=4&rft.issue=2&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&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 - USA, Oregon; forests; ecosystem analysis; remote sensing; research programs ER - TY - JOUR T1 - Remote sensing of seasonal leaf area index across the Oregon transect AN - 16876398; 3582742 AB - Remotely sensed data acquired from four remote-sensing instruments on three different aircraft platforms over a transect of coniferous forest stands in Oregon were analyzed with respect to seasonal leaf area index (LAI). Data from the four instruments were corrected for the varying seasonal and geographic atmospheric conditions present along the transect. Strong logarithmic relationships were observed between seasonal maximum and minimum LAI and the simple ratio (SR) (near infrared/red reflectance) calculated from the broad-spectral-band Thematic Mapper Simulator (TMS), as well as from the narrow-spectral-band Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), the Compact Airborne Spectrographic Imager (CASI), and a Spectron SE590 spectro-radiometer (R super(2) = 0.82-0.97). The TMS SR reached an asymptote at an LAI of 7-8. However, the SE590 and the CASI SR continued to increase up to the maximum LAI of 10.6. The variability of the relationship between the AVIRIS SR and LAI increased at stands with LAIs >7, making a trend in the AVIRIS SR-LAI relationship at LAIs >7 difficult to discern. The SRs of the coniferous forest stands measured by the narrow-spectral-band instruments were higher than they were from the broad-spectral-band TMS. This is attributed partially to the integration of the TMS over a broad wavelength region in the red and more strongly to calibration differences between the sensors. Seasonal TMS SR trends for four time periods for some of the stands deviated from the expected seasonal LAI trends, possibly because of smoke and very low sun angles during some of the acquisition periods. However, the expected SR differences for the seasonal minimum and maximum LAI were observed for all of the sensors for nearly all of the forest stands. This study demonstrates that remotely sensed data from both broad- and narrow-spectral-band instruments can provide estimates of LAI for use in forest ecosystem simulation models to estimate evapotranspiration, photosynthesis, canopy turnover, and net primary production over large areas. JF - Ecological Applications AU - Spanner, M AU - Johnson, L AU - Miller, J AU - McCreight, R AU - Freemantle, J AU - Runyon, J AU - Gong, P AD - Johnson Controls World Serv., Inc., NASA-Ames Res. Cent., Moffett Field, CA 94035, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 258 EP - 271 VL - 4 IS - 2 SN - 1051-0761, 1051-0761 KW - Oregon Transect Ecosystem Research KW - (OTTER) Project KW - Ecology Abstracts KW - forests KW - seasonal variations KW - leaf area KW - USA, Oregon KW - remote sensing KW - D 04125:Temperate forests KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16876398?accountid=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=Ecological+Applications&rft.atitle=Remote+sensing+of+seasonal+leaf+area+index+across+the+Oregon+transect&rft.au=Spanner%2C+M%3BJohnson%2C+L%3BMiller%2C+J%3BMcCreight%2C+R%3BFreemantle%2C+J%3BRunyon%2C+J%3BGong%2C+P&rft.aulast=Spanner&rft.aufirst=M&rft.date=1994-01-01&rft.volume=4&rft.issue=2&rft.spage=258&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&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 - USA, Oregon; leaf area; seasonal variations; remote sensing; forests ER - TY - JOUR T1 - Airborne active and passive microwave observations of Super Typhoon Flo AN - 16874536; 3791539 AB - Airborne microwave measurements of precipitation associated with Super Typhoon Flo in the western North Pacific were conducted during September 16-18, 1990. The sensor package aboard the NASA DC-8 aircraft included a dual-frequency precipitation radar at 10 GHz and 34 GHz and a host of radiometers operating at 10 GHz, 18 GHz, 19 GHz, 34 GHz, and 92 GHz, as well as three frequencies near the strong water vapor absorption line of 183.3 GHz. The measurements were made during a few passes over the storm center, and active and passive microwave signatures of the rainbands were detected with a fine spatial resolution. The relationship between the measured brightness temperature and radar-estimated rain rate is examined at the frequencies between 10-92 GHz. At both 34 and 92 GHz this relationship is analyzed with the 10 GHz radar reflectivity factor measured at altitudes above the freezing layer as a further constraint. The results show that frozen hydrometeors strongly scatter radiation at these frequencies, especially at 92 GHz. It was shown from a close examination of both active and passive microwave signatures that a significant scattering of radiation at frequencies greater than or equal to 18 GHz occurred in the inner eyewall at altitudes of 3-8 km. This scattering of microwave radiation by hydrometeors in both liquid and frozen forms was discussed under our current understanding of the scattering mechanism. JF - IEEE Transactions on Geoscience and Remote Sensing AU - Wang, J R AU - Meneghini, R AU - Kumagai, H AU - Wilheit, TT Jr AU - Boncyk, W C AU - Racette, P AU - Tesmer, J R AU - Maves, B AD - Lab. Hydrospheric Processes, NASA Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 231 EP - 242 VL - 32 IS - 2 SN - 0196-2892, 0196-2892 KW - INW KW - Super Typhoon Flo KW - airborne sensing KW - atmospheric precipitations KW - microwave imagery KW - precipitation KW - Oceanic Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Marine KW - radar KW - microwaves KW - hurricanes KW - rain KW - remote sensing KW - Q2 09243:Structure, mechanics and thermodynamics KW - O 2010:Physical Oceanography KW - O 2090:Instruments/Methods KW - SW 5040:Data acquisition KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16874536?accountid=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=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.atitle=Airborne+active+and+passive+microwave+observations+of+Super+Typhoon+Flo&rft.au=Wang%2C+J+R%3BMeneghini%2C+R%3BKumagai%2C+H%3BWilheit%2C+TT+Jr%3BBoncyk%2C+W+C%3BRacette%2C+P%3BTesmer%2C+J+R%3BMaves%2C+B&rft.aulast=Wang&rft.aufirst=J&rft.date=1994-01-01&rft.volume=32&rft.issue=2&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.issn=01962892&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 - atmospheric precipitations; airborne sensing; radar; microwave imagery; microwaves; rain; hurricanes; remote sensing; precipitation; Marine ER - TY - CONF T1 - Aerosol abundances and optical characteristics in the Pacific Basin free troposphere AN - 16871749; 3577949 AB - During NASA's Global Backscatter Experiment (GLOBE) mission flights in November 1989 and May 1990, a DC-8 research aircraft probed the Pacific Basin free troposphere for about 90 flight hours in each month between +72 and -62 degrees latitude, +130 and -120 degrees longitude, and up to 39,000 feet pressure altitudes. Aerosols were sampled continuously in situ by optical particle counters to measure concentration and particle size, and during 48 10-min intervals during each mission by wire impactors for concentration, size, composition, phase and shape analyses. The optical particle counters cover a particle diameter range between 0.3 and 20 mu m; wire impactors extend the range down to 0.03 mu m. Results of particle number, size, shape, together with the assumption of a refractive index corresponding to (NH sub(4)) sub(2)SO sub(4) to account for the prevalence of aerosol sulfur, were utilized in a Mie algorithm to calculate aerosol extinction and backscatter for a range of wavelengths (0.385 < lambda < 10.64 mu m). JF - Atmospheric Environment AU - Pueschel, R F AU - Livingston, J M AU - Ferry, G V AU - DeFelice, TE Y1 - 1994 PY - 1994 DA - 1994 SP - 951 EP - 960 VL - 28 IS - 5 KW - Pacific Basin KW - Pollution Abstracts KW - particle size KW - optical analysis KW - troposphere KW - sulfur KW - aerosols KW - air sampling KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16871749?accountid=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=Aerosol+abundances+and+optical+characteristics+in+the+Pacific+Basin+free+troposphere&rft.au=Pueschel%2C+R+F%3BLivingston%2C+J+M%3BFerry%2C+G+V%3BDeFelice%2C+TE&rft.aulast=Pueschel&rft.aufirst=R&rft.date=1994-01-01&rft.volume=28&rft.issue=5&rft.spage=951&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 - Use of SAR in regional methane exchange studies AN - 16870887; 3581080 AB - Significant sources of uncertainty in global trace gas budgets are due to lack of knowledge concerning the areal and temporal extent of source and sink areas. Synthetic aperture radar (SAR) is particularly suited to studies of northern ecosystems because of its all-weather operating capability which enables the acquisition of seasonal data. As key controls on methane exchange, the ability to differentiate major vegetation communities, inundation, and leaf area index (LAI) with satellite and airborne SAR data would increase the accuracy and precision of regional and seasonal estimates of methane exchange. The utility of SAR data for monitoring key control on methane emissions from Arctic and boreal ecosystems is examined. JF - International Journal of Remote Sensing AU - Morrissey, LA AU - Livingston, G P AU - Durden, S L AD - NASA Ames Res. Cent., MS 242-4, Moffett Field, CA 94035-1000, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 1337 EP - 1342 VL - 15 IS - 6 SN - 0143-1161, 0143-1161 KW - biogeochemical cycle KW - methane KW - satellite technology KW - standing waters KW - synthetic aperture radar KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Ecology Abstracts; Water Resources Abstracts KW - USA, Alaska KW - radar KW - Freshwater KW - wetlands KW - remote sensing KW - Q1 08482:Ecosystems and energetics KW - Q2 09393:Remote geosensing KW - SW 5040:Data acquisition KW - Q5 08502:Methods and instruments KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16870887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Remote+Sensing&rft.atitle=Use+of+SAR+in+regional+methane+exchange+studies&rft.au=Morrissey%2C+LA%3BLivingston%2C+G+P%3BDurden%2C+S+L&rft.aulast=Morrissey&rft.aufirst=LA&rft.date=1994-01-01&rft.volume=15&rft.issue=6&rft.spage=1337&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - methane; wetlands; biogeochemical cycle; radar; synthetic aperture radar; remote sensing; satellite technology; standing waters; USA, Alaska; Freshwater ER - TY - JOUR T1 - Mid-infrared extinction by sulfate aerosols from the Mt Pinatubo eruption AN - 16869336; 3794855 AB - Quantitative measurements of the wavelength dependence of aerosol extinction in the 750-3400/cm spectral region have been derived from 0.01/cm resolution stratospheric solar occultation spectra recorded by the ATMOS (Atmospheric Trace Molecule Spectroscopy) Fourier transform spectrometer about 9 one half months after the Mt Pinatubo volcanic eruption. Strong, broad aerosol features have been identified near 900, 1060, 1190, 1720, and 2900/cm below a tangent height of similar to 30 km. Aerosol extinction measurements derived from similar to 0.05/cm wide microwindows nearly free of telluric line absorption in the ATMOS spectra are compared with transmission calculations derived from aerosol size distribution profiles retrieved from correlative SAGE (Stratospheric Aerosol and Gas Experiment) II visible and near i.r. extinction measurements, seasonal and zonally averaged H sub(2)SO sub(4) aerosol weight percentage profiles, and published sulfuric acid optical constants derived from room temperature laboratory measurements. The calculated shapes and positions of the aerosol features are generally consistent with the observations, thereby confirming that the aerosols are predominantly concentrated H sub(2)SO sub(4)-H sub(2)O droplets, but there are significant differences between the measured and calculated wavelength dependences of the aerosol extinction. Errors in both the published room temperature optical constants and the limitations of the Lorentz-Lorenz relation are likely to be important. JF - Journal of Quantitative Spectroscopy & Radiative Transfer AU - Rinsland, C P AU - Yue, G K AU - Gunson, M R AU - Zander, R AU - Abrams, M C AD - Atmos. Sci. Div., NASA Langley Res. Cent., Hampton, VA 23681-0001, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 241 EP - 252 VL - 52 IS - 3-4 SN - 0022-4073, 0022-4073 KW - Philippines, Mount Pinatubo KW - Pollution Abstracts KW - sulfates KW - aerosols KW - volcanoes KW - seasonal variations KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16869336?accountid=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=Journal+of+Quantitative+Spectroscopy+%26+Radiative+Transfer&rft.atitle=Mid-infrared+extinction+by+sulfate+aerosols+from+the+Mt+Pinatubo+eruption&rft.au=Rinsland%2C+C+P%3BYue%2C+G+K%3BGunson%2C+M+R%3BZander%2C+R%3BAbrams%2C+M+C&rft.aulast=Rinsland&rft.aufirst=C&rft.date=1994-01-01&rft.volume=52&rft.issue=3-4&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Journal+of+Quantitative+Spectroscopy+%26+Radiative+Transfer&rft.issn=00224073&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 - volcanoes; aerosols; sulfates; seasonal variations ER - TY - JOUR T1 - Responses of arid and semiarid watersheds to increasing carbon dioxide and climate change as shown by simulation studies AN - 16867154; 3790460 AB - The atmospheric concentration of carbon dioxide is expected to double in the next century causing increased temperatures and decreasing precipitation in some regions of the U.S. The increase in CO sub(2) will also directly affect stomatal conductance of plants. At the first-order watershed scale, changes in evaporative demand, transpiration, and runoff will also occur. Previous modeling studies of the effect of increased CO sub(2) on the water budgets of watersheds have been single-factor exercises where a single parameter representing stomatal conductance was reduced and the results noted. After showing validation results of the hydrology module, we used a comprehensive ecosystem model to examine the consequences of changes in precipitation, temperature, and CO sub(2)-induced plant-function characteristics on small-basin runoff. As a result of the complex interactions and of the compensatory mechanisms simulated by the model, we conclude that for arid and semiarid watersheds of the western United States, there will be little change or an actual decrease in surface runoff because of increased CO sub(2) and climate change. This is due to the decrease in precipitation imposed on the model simulations. Implementing stomatal closure in the model did not increase runoff from the watersheds when temperatures were increased and precipitation decreased. JF - Climatic Change AU - Skiles, J W AU - Hanson, J D AD - Johnson Controls World Serv., MS 242-4, NASA/Ames Res. Cent., Moffett Field, CA 94035-1000, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 377 EP - 397 VL - 26 IS - 4 SN - 0165-0009, 0165-0009 KW - arid lands KW - semiarid lands KW - Water Resources Abstracts; Pollution Abstracts KW - plants KW - watersheds KW - simulation KW - temperature KW - climatic changes KW - carbon dioxide KW - runoff KW - P 0000:AIR POLLUTION KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16867154?accountid=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=Climatic+Change&rft.atitle=Responses+of+arid+and+semiarid+watersheds+to+increasing+carbon+dioxide+and+climate+change+as+shown+by+simulation+studies&rft.au=Skiles%2C+J+W%3BHanson%2C+J+D&rft.aulast=Skiles&rft.aufirst=J&rft.date=1994-01-01&rft.volume=26&rft.issue=4&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&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 - watersheds; carbon dioxide; climatic changes; simulation; plants; runoff; temperature; arid lands; semiarid lands ER - TY - JOUR T1 - The solar cycle variation of ozone in the stratosphere inferred from Nimbus 7 and NOAA 11 satellites AN - 16849199; 3775396 AB - The combined Nimbus 7 solar backscattered ultraviolet (SBUV) and NOAA 11 SBUV/2 ozone data, covering a period of more than a solar cycle (about 15 years), are used to study the UV response of ozone in the stratosphere. The study shows that about 2% change in total column ozone and about 5-7% change in ozone mixing ratio in the upper stratosphere (0.7 to 2 hPa) may be attributed to the change in the solar UV flux over a solar cycle. In the upper stratosphere, where photochemical processes are expected to play a major role, the measured solar cycle variation of ozone is significantly larger than inferred either from the photochemical models or from the ozone response to the 27-day solar UV modulation. For example, the observed solar cycle related change in ozone mixing ratio at 2 hPa is about 1% for 1% change in the solar UV flux near 200 nm. The inferred change in ozone from either the photochemical models or from the 27-day ozone-UV response is about a factor of 2-3 lower than this value. JF - Journal of Geophysical Research. D. Atmospheres AU - Chandra, S AU - McPeters, R D AD - NASA Goddard Space Flight Cent., Lab. Atmos., Greenbelt, MD, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 20 EP - 20,671 VL - 99 IS - D10 SN - 0148-0227, 0148-0227 KW - Pollution Abstracts KW - ozone KW - stratosphere KW - photochemicals KW - remote sensing KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16849199?accountid=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=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=The+solar+cycle+variation+of+ozone+in+the+stratosphere+inferred+from+Nimbus+7+and+NOAA+11+satellites&rft.au=Chandra%2C+S%3BMcPeters%2C+R+D&rft.aulast=Chandra&rft.aufirst=S&rft.date=1994-01-01&rft.volume=99&rft.issue=D10&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&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 - ozone; stratosphere; remote sensing; photochemicals ER - TY - JOUR T1 - Nutrition in space: Lessons from the past applied to the future AN - 16842761; 3779404 AB - In this discussion, dietary intake data from three space programs, Apollo, Space Shuttle, and Skylab, are presented. Data examination reveals that energy and fluid intakes are almost always lower than predicted. Nutrition in space has many areas of impact, including provision of required nutrients and maintenance of endocrine, immune, and musculoskeletal systems. Long-duration missions will require quantitation of nutrient requirements for maintenance of health and protection against the effects of microgravity. Psychosocial aspects of nutrition will also be important for more productive missions and crew morale. Realization of the full role of nutrition during spaceflight is critical for the success of extended-duration missions. Research conducted to determine the impact of spaceflight on human physiology and subsequent nutritional requirements will also have direct and indirect applications in Earth-based nutrition research. JF - American Journal of Clinical Nutrition AU - Lane, H W AU - Smith, S M AU - Rice, B L AU - Bourland, C T AD - Biomed., Oper. and Res. Branch, Med. Sci. Div., Mail Code SD4, NASA Johnson Space Cent., Houston, TX 77058, USA Y1 - 1994 PY - 1994 DA - 1994 VL - 60 SN - 0002-9165, 0002-9165 KW - crew safety KW - Health & Safety Science Abstracts KW - nutrients KW - spacecraft KW - diets KW - occupational health KW - H SA2.25:CREW SAFETY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16842761?accountid=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+Journal+of+Clinical+Nutrition&rft.atitle=Nutrition+in+space%3A+Lessons+from+the+past+applied+to+the+future&rft.au=Lane%2C+H+W%3BSmith%2C+S+M%3BRice%2C+B+L%3BBourland%2C+C+T&rft.aulast=Lane&rft.aufirst=H&rft.date=1994-01-01&rft.volume=60&rft.issue=&rft.spage=no.+5+sul.&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Clinical+Nutrition&rft.issn=00029165&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 - spacecraft; nutrients; diets; occupational health ER - TY - JOUR T1 - Comparison of SBUV and SAGE II ozone profiles: Implications for ozone trends AN - 16832509; 3770271 AB - Solar backscattered ultraviolet (SBUV) ozone profiles have been compared with Stratospheric Aerosol and Gas Experiment (SAGE) II profiles over the period October 1984 through June 1990, when data are available from both instruments. SBUV measurements were selected to closely match the SAGE II latitude/longitude measurement pattern. There are significant differences between the SAGE II sunrise and the sunset zonal mean ozone profiles in the equatorial zone, particularly in the upper stratosphere, that may be connected with extreme SAGE II solar azimuth angles for tropical sunrise measurements. Calculation of the average sunset bias between SBUV and SAGE II ozone profiles shows that allowing for diurnal variation in Umkehr layer 10, SBUV and SAGE II agree to within plus or minus 5% for the entire stratosphere in the northern midlatitude zone. The worst agreement is seen at southern midlatitudes near the ozone peak (disagreements of plus or minus 10%), apparently the result of the SBUV ozone profile peaking at a lower altitude than SAGE. JF - Journal of Geophysical Research. D. Atmospheres AU - McPeters, R D AU - Miles, T AU - Flynn, LE AU - Wellemeyer, C G AU - Zawodny, J M AD - NASA Goddard Space Flight Cent., Greenbelt, MD, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 20 EP - 20,524 VL - 99 IS - D10 SN - 0148-0227, 0148-0227 KW - Pollution Abstracts KW - measuring instruments KW - ozone KW - stratosphere KW - diurnal variations KW - measuring methods KW - seasonal variations KW - satellites KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16832509?accountid=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=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=Comparison+of+SBUV+and+SAGE+II+ozone+profiles%3A+Implications+for+ozone+trends&rft.au=McPeters%2C+R+D%3BMiles%2C+T%3BFlynn%2C+LE%3BWellemeyer%2C+C+G%3BZawodny%2C+J+M&rft.aulast=McPeters&rft.aufirst=R&rft.date=1994-01-01&rft.volume=99&rft.issue=D10&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&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 - ozone; seasonal variations; measuring instruments; stratosphere; satellites; measuring methods; diurnal variations ER - TY - JOUR T1 - Ocean-ice interaction in the marginal ice zone using synthetic aperture radar imagery AN - 16830878; 3769146 AB - Ocean-ice interaction processes in the marginal ice zone (MIZ) by wind, waves, and mesoscale features, such as up/downwelling and eddies are studied using ERS 1 synthetic aperture radar (SAR) images and an ocean-ice interaction model. A sequence of seven SAR images of the MIZ in the Chukchi Sea with 3 or 6 days interval are investigated for ice edge advance/retreat. Simultaneous current measurements from the northeast Chukchi Sea, as well as the Barrow wind record, are used to interpret the MIZ dynamics. SAR spectra of waves in ice and ocean waves in the Bering and Chukchi Sea are compared for the study of wave propagation and dominant SAR imaging mechanism. By using the SAR-observed ice edge configuration and wind and wave field in the Chukchi Sea as inputs, a numerical simulation has been performed with the ocean-ice interaction model. After 3 days of wind and wave forcing the resulting ice edge configuration, eddy formation, and flow velocity field are shown to be consistent with SAR observations. JF - Journal of Geophysical Research. C. Oceans AU - Liu, A K AU - Peng, CY AU - Weingartner, T J AD - Oceans and Ice Branch, NASA Goddard Space Flight Cent., Greenbelt, MD, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 22 EP - 22,400 VL - 99 IS - C11 SN - 0148-0227, 0148-0227 KW - PNE, Chuckchee Sea KW - ice-water interface KW - ice-water interfaces KW - marginal ice zone KW - polar oceanography KW - synthetic aperture radar KW - wave-ice interaction KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Marine KW - sea ice KW - mathematical models KW - radar KW - oceanography KW - SW 5040:Data acquisition KW - O 2090:Instruments/Methods KW - Q2 09393:Remote geosensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16830878?accountid=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+Geophysical+Research.+C.+Oceans&rft.atitle=Ocean-ice+interaction+in+the+marginal+ice+zone+using+synthetic+aperture+radar+imagery&rft.au=Liu%2C+A+K%3BPeng%2C+CY%3BWeingartner%2C+T+J&rft.aulast=Liu&rft.aufirst=A&rft.date=1994-01-01&rft.volume=99&rft.issue=C11&rft.spage=22&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+C.+Oceans&rft.issn=01480227&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 - polar oceanography; sea ice; radar; mathematical models; ice-water interface; oceanography; synthetic aperture radar; ice-water interfaces; Marine ER - TY - JOUR T1 - Remote sensing as a landscape epidemiologic tool to identify villages at high risk for malaria transmission AN - 16826209; 3768537 AB - A landscape approach using remote sensing and geographic information system (GIS) technologies was developed to discriminate between villages at high and low risk for malaria transmission, as defined by adult Anopheles albimanus abundance. Satellite data for an area in southern Chiapas, Mexico were digitally processed to generate a map of landscape elements. The GIS processes were used to determine the proportion of mapped landscape elements surrounding 40 villages where An. albimanus abundance data had been collected. The relationships between vector abundance and landscape element proportions were investigated using stepwise discriminant analysis and stepwise linear regression. Both analyses indicated that the most important landscape elements in terms of explaining vector abundance were transitional swamp and unmanaged pasture. Discriminant functions generated for these two elements were able to correctly distinguish between villages with high and low vector abundance, with an overall accuracy of 90%. Regression results found both transitional swamp and unmanaged pasture proportions to be predictive of vector abundance during the mid-to-late wet season. This approach, which integrates remotely sensed data and GIS capabilities to identify villages with high vector-human contact risk, provides a promising tool for malaria surveillance programs that depend on labor-intensive field techniques. This is particularly relevant in areas where the lack of accurate surveillance capabilities may result in no malaria control action when, in fact, directed action is necessary. In general, this landscape approach could be applied to other vector-borne diseases in areas where 1) the landscape elements critical to vector survival are known and 2) these elements can be detected at remote sensing scales. JF - American Journal of Tropical Medicine and Hygiene AU - Beck, L R AU - Rodriguez, M H AU - Dister, S W AU - Rodriguez, AD AU - Rejmankova, E AU - Ulloa, A AU - Meza, R A AU - Roberts AU - Paris, J F AU - Spanner, MA AU - Washino, R K AU - Hacker, C AU - Legters, L J AD - Johnson Controls World Serv., NASA Ames Res. Cent., Moffett Field, CA, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 271 EP - 280 VL - 51 IS - 3 SN - 0002-9637, 0002-9637 KW - malaria KW - man KW - disease transmission KW - Health & Safety Science Abstracts; Entomology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Culicidae KW - Anopheles albimanus KW - Plasmodium KW - Diptera KW - remote sensing KW - K 03090:Protozoa: human KW - Z 05206:Medical & veterinary entomology KW - H SM10.29:MALARIA KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16826209?accountid=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+Journal+of+Tropical+Medicine+and+Hygiene&rft.atitle=Remote+sensing+as+a+landscape+epidemiologic+tool+to+identify+villages+at+high+risk+for+malaria+transmission&rft.au=Beck%2C+L+R%3BRodriguez%2C+M+H%3BDister%2C+S+W%3BRodriguez%2C+AD%3BRejmankova%2C+E%3BUlloa%2C+A%3BMeza%2C+R+A%3BRoberts%3BParis%2C+J+F%3BSpanner%2C+MA%3BWashino%2C+R+K%3BHacker%2C+C%3BLegters%2C+L+J&rft.aulast=Beck&rft.aufirst=L&rft.date=1994-01-01&rft.volume=51&rft.issue=3&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Tropical+Medicine+and+Hygiene&rft.issn=00029637&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 - Plasmodium; Anopheles albimanus; Culicidae; Diptera; remote sensing; malaria; man; disease transmission ER - TY - JOUR T1 - High-resolution imaging of rain systems with the Advanced Microwave Precipitation Radiometer AN - 16823003; 3767423 AB - An Advanced Microwave Precipitation Radiometer (AMPR) has been developed and flown in the NASA ER-2 high-altitude aircraft for imaging various atmospheric and surface processes, primarily the internal structure of rain clouds. The AMPR is a scanning four-frequency total power microwave radiometer that is externally calibrated with high-emissivity warm and cold loads. Separate antenna systems allow the sampling of the 10.7- and 19.35-GHz channels at the same spatial resolution, while the 37.1- and 85.5-GHz channels utilize the same multifrequency feedhorn as the 19.35-GHz channel. Spatial resolutions from an aircraft altitude of 20-km range from 0.6 km at 85.5 GHz to 2.8 km at 19.35 and 10.7 GHz. All channels are sampled every 0.6 km in both along-track and cross-track directions, leading to a contiguous sampling pattern of the 85.5-GHz 3-dB beamwidth footprints, 2.3x oversampling of the 37.1-GHz data, and 4.4x oversampling of the 19.35- and 10.7-GHz data. Radiometer temperature sensitivities range from 0.2 degree to 0.5 degree C. Details of the system are described, including two different calibration systems and their effect on the data collected. Examples of oceanic rain systems are presented from Florida and the tropical west Pacific that illustrate the wide variety of cloud water, rainwater, and precipitation-size ice combinations that are observable from aircraft altitudes. JF - Journal of Atmospheric and Oceanic Technology AU - Spencer, R W AU - Hood, R E AU - LaFontaine, F J AU - Smith, E A AU - Platt, R AU - Galliano, J AU - Griffin, V L AU - Lobl, E AD - ES43/Earth Sci. Appl. Div., NASA Marshall Space Flight Cent., Huntsville, AL 35812, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 849 EP - 857 VL - 11 IS - 4 (part 1) SN - 0739-0572, 0739-0572 KW - radiometers KW - Water Resources Abstracts KW - clouds KW - satellite technology KW - precipitation KW - aircraft KW - microwaves KW - rain KW - remote sensing KW - SW 5040:Data acquisition KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16823003?accountid=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+Atmospheric+and+Oceanic+Technology&rft.atitle=High-resolution+imaging+of+rain+systems+with+the+Advanced+Microwave+Precipitation+Radiometer&rft.au=Spencer%2C+R+W%3BHood%2C+R+E%3BLaFontaine%2C+F+J%3BSmith%2C+E+A%3BPlatt%2C+R%3BGalliano%2C+J%3BGriffin%2C+V+L%3BLobl%2C+E&rft.aulast=Spencer&rft.aufirst=R&rft.date=1994-01-01&rft.volume=11&rft.issue=4+%28part+1%29&rft.spage=849&rft.isbn=&rft.btitle=&rft.title=Journal+of+Atmospheric+and+Oceanic+Technology&rft.issn=07390572&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 - rain; microwaves; precipitation; clouds; satellite technology; remote sensing; aircraft ER - TY - JOUR T1 - Characteristics of the vertical profiles of dual-frequency, dual-polarization radar data in stratiform rain AN - 16821245; 3767407 AB - Airborne dual-wavelength and dual-polarization radar data are analyzed for measurements taken in stratiform rain in the western Pacific during September 1990. The focus of the paper is on the vertical profiles of the linear depolarization ratio, LDR (10 GHz); the reflectivity factor, dBZ (10 GHz); and the dual-frequency ratio, DFR (10, 34.45 GHz). Statistical characterizations of the maxima of these quantities and the relative locations at which they occur suggest that the eccentricity of the melting particles is fairly large and that the shape and size of the particles are correlated. To try to explain these features, two types of simulation are presented. In the first, a set of measured drop size distributions is used in the context of a standard model of the melting layer. Variations in snow density, as well as shape, size, and orientation distributions are used to study the relationship between these parameters and the radar measurements. To reduce the amount of ambiguity in the estimation, a second type of simulation is described in which the size distribution of the snow is estimated. Comparisons between the simulated and measured profiles indicate that radar measurements can be used to derive certain characteristics of the particle size and shape distributions in the melting layer. JF - Journal of Atmospheric and Oceanic Technology AU - Meneghini, R AU - Kumagai, H AD - NASA/Goddard Space Flight Cent., Code 975, Greenbelt, MD 20772, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 701 EP - 711 VL - 11 IS - 3 SN - 0739-0572, 0739-0572 KW - reflectivity KW - Water Resources Abstracts KW - frequency analysis KW - polarization KW - radar KW - rain KW - SW 5040:Data acquisition KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16821245?accountid=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+Atmospheric+and+Oceanic+Technology&rft.atitle=Characteristics+of+the+vertical+profiles+of+dual-frequency%2C+dual-polarization+radar+data+in+stratiform+rain&rft.au=Meneghini%2C+R%3BKumagai%2C+H&rft.aulast=Meneghini&rft.aufirst=R&rft.date=1994-01-01&rft.volume=11&rft.issue=3&rft.spage=701&rft.isbn=&rft.btitle=&rft.title=Journal+of+Atmospheric+and+Oceanic+Technology&rft.issn=07390572&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 - polarization; frequency analysis; radar; rain ER - TY - JOUR T1 - AVHRR split window temperature differences and total precipitable water over land surfaces AN - 16815118; 3558337 AB - Measurements from the thermal infrared split window channels of the AVHRR sensor were investigated for their relationship to the total atmospheric water vapour amount over land surfaces. The difference in brightness temperature between the AVHRR channel 4 and 5 (10.3-11.3 mu m and 11.4-12.3 mu m respectively) was found to be a linear function of total precipitable water, for several stations in differing climatic regimes. For each individual location the total precipitable water was estimated with a standard error ranging from 0.22 to 0.48 cm for the complete range of conditions from wet to dry season or summer to winter. For mid-latitude continental locations there is very little influence of atmospheric aerosols on the relationship while for the African Sahel region the effect of large airborne particulates with a silicate component introduces a significant effect at large values of aerosol optical depth due to absorption. The influence of spectral emissivity variation in the split window region was also observed for arid regions where there is a significant quartz component to the soil. It is concluded that for regional retrieval of precipitable water, this technique provides sufficient accuracy for application to correction of near-infrared satellite data such as AVHRR channel 2 (0.71-0.98 mu m), however the site specific relation between T sub(4)-T sub(5) and PW needs to be established with independent PW measurements. JF - International Journal of Remote Sensing AU - Eck, T F AU - Holben, B N AD - Hughes STX Corp., Code 923, NASA/GSFC, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 567 EP - 582 VL - 15 IS - 3 SN - 0143-1161, 0143-1161 KW - Africa, Sahel Reg. KW - Water Resources Abstracts KW - satellite technology KW - precipitation KW - aerosols KW - water vapor KW - remote sensing KW - SW 5040:Data acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16815118?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=AVHRR+split+window+temperature+differences+and+total+precipitable+water+over+land+surfaces&rft.au=Eck%2C+T+F%3BHolben%2C+B+N&rft.aulast=Eck&rft.aufirst=T&rft.date=1994-01-01&rft.volume=15&rft.issue=3&rft.spage=567&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - precipitation; water vapor; remote sensing; satellite technology; aerosols ER - TY - JOUR T1 - Plant chemical defense: Monoterpenes and the growth-differentiation balance hypothesis AN - 16770690; 3533435 AB - Recent studies of allocation to defensive chemicals in plants have provided insights into the ecological controls over plant defensive chemicals. Both developmental and ecological studies now suggest that we can understand the factors influencing allocation to defense by examining the relative availability of resources, external needs for chemical defense, and the internal demands for growth that plants face. These studies have also shed light on one of the more popular theories in plant evolutionary ecology, the growth-differentiation balance hypothesis of plant resource allocation. JF - Trends in Ecology & Evolution AU - Lerdau, M AU - Litvak, M AU - Monson, R AD - NASA Ames, MS 239-20, Moffett Field, CA 94035-5020, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 58 EP - 61 VL - 9 IS - 2 SN - 0169-5347, 0169-5347 KW - monoterpenes KW - Ecology Abstracts KW - resource allocation KW - plants KW - defense mechanisms KW - growth KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16770690?accountid=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=Trends+in+Ecology+%26+Evolution&rft.atitle=Plant+chemical+defense%3A+Monoterpenes+and+the+growth-differentiation+balance+hypothesis&rft.au=Lerdau%2C+M%3BLitvak%2C+M%3BMonson%2C+R&rft.aulast=Lerdau&rft.aufirst=M&rft.date=1994-01-01&rft.volume=9&rft.issue=2&rft.spage=58&rft.isbn=&rft.btitle=&rft.title=Trends+in+Ecology+%26+Evolution&rft.issn=01695347&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 - plants; defense mechanisms; growth; resource allocation ER - TY - JOUR T1 - Climatic consequences of observed ozone loss in the 1980s: Relevance to the greenhouse problem AN - 16724522; 3713011 AB - Recently published findings using satellite and ground-based observations indicate a large winter and summertime decrease in the column abundance of ozone at high and middle latitudes during the last decade. Using a simple ozone depletion profile reflecting the observed decrease in ozone column abundance, Ramaswamy et al. (1992) showed that the negative radiative forcing that results from the ozone decrease between 1979 and 1990 approximately balanced the greenhouse climate forcing due to the chlorofluorocarbons emitted during the same period. Here, we extend the forcing analyses by calculating the equilibrium surface temperature response explicitly, using an updated version of the Atmospheric and Environmental Research two-dimensional radiative-dynamical seasonal model. The calculated steady state responses suggest that the surface cooling due to the ozone depletion in the lower stratosphere offsets about 30% of the surface warming due to greenhouse gases emitted during the same decade. JF - Journal of Geophysical Research. D. Atmospheres AU - Molnar, GI AU - Ko, MKW AU - Zhou, S AU - Sze, N D AD - Univ. Space Res. Assoc., NASA Goddard Space Flight Cent., Greenbelt, MD 20770, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 25 EP - 25,760 VL - 99 IS - D12 SN - 0148-0227, 0148-0227 KW - air-water interactions KW - atmosphere KW - atmospheric forcing KW - atmospheric gases KW - climatology KW - ocean-atmosphere system KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Marine KW - numerical analysis KW - atmospheric chemistry KW - ozone KW - greenhouse effect KW - seasonal variations KW - P 0000:AIR POLLUTION KW - Q2 09244:Air-sea coupling KW - Q5 08521:Mechanical and natural changes KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16724522?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=Climatic+consequences+of+observed+ozone+loss+in+the+1980s%3A+Relevance+to+the+greenhouse+problem&rft.au=Molnar%2C+GI%3BKo%2C+MKW%3BZhou%2C+S%3BSze%2C+N+D&rft.aulast=Molnar&rft.aufirst=GI&rft.date=1994-01-01&rft.volume=99&rft.issue=D12&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&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 - climatology; ozone; numerical analysis; atmospheric gases; ocean-atmosphere system; seasonal variations; greenhouse effect; atmospheric chemistry; atmospheric forcing; air-water interactions; atmosphere; Marine ER - TY - BOOK T1 - Mapping sediment and water properties in a shallow coastal environment with airborne electromagnetic profile data: Case study -- the Cape Lookout, NC area AN - 16723554; 3712326 AB - Airborne Electromagnetic profile (AEM) data has been demonstrated to provide good airborne measurements of shallow ocean bathymetry but has received limited use in very shallow coastal barrier island and estuarine environments. This paper illustrates the utility of the AEM for developing maps of physical properties useful in characterizing sediment and water in these types of complex coastal environments. The test site is the Cape Lookout area at the southern end of North Carolina's Outer Banks. Inverse methods were applied to a two-layer model to calculate water depth, water conductivity and sediment conductivity values from transect data. These calculated model parameters were then used to develop interpolated spatial maps for these variables. The analysis provided generally good agreement between the map values and ground truth. The water depth model, used to generate a bathymetric map, fit the actual data points very well and much better than the initial sediment and water conductivity models that required additional filtering to produce good spatial maps. The sediment conductivity maps corresponded fairly well with known shallow sediment types and the water conductivity maps demonstrated the expected variation in an estuarine environment such as this. Spatially the maps depict very good general trends for the variables studied as well as identifying some special areas of interest at a more detailed scale. An understanding of the spatial distribution of these sediment and water variables has broad utility in a variety of physical and biological coastal process models. JF - REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS AU - Pelletier, R E AU - Holladay, K W A2 - Engelhardt, R (ed) Y1 - 1994 PY - 1994 DA - 1994 SP - 11 EP - 67 KW - USA, North Carolina, Cape Lookout Bight KW - airborne sensing KW - coastal zone KW - electromagnetic wastes KW - electromagnetism KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Marine KW - mapping KW - shallow water KW - estuaries KW - physical properties KW - ANW, USA, North Carolina, Cape Lookout Bight KW - maps KW - sediments KW - bathymetry KW - remote sensing KW - SW 5040:Data acquisition KW - O 2090:Instruments/Methods KW - Q2 09393:Remote geosensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16723554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Water+Resources+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Pelletier%2C+R+E%3BHolladay%2C+K+W&rft.aulast=Pelletier&rft.aufirst=R&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=57&rft.isbn=&rft.btitle=Mapping+sediment+and+water+properties+in+a+shallow+coastal+environment+with+airborne+electromagnetic+profile+data%3A+Case+study+--+the+Cape+Lookout%2C+NC+area&rft.title=Mapping+sediment+and+water+properties+in+a+shallow+coastal+environment+with+airborne+electromagnetic+profile+data%3A+Case+study+--+the+Cape+Lookout%2C+NC+area&rft.issn=00253324&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 ER - TY - JOUR T1 - Passive microwave structure of severe tornadic storms on 16 November 1987 AN - 16708436; 3705091 AB - Passive microwave observations using the Special Sensor Microwave/Imager are presented for severe tornadic storms in the lower midwestern United States on 16 November 1987. These measurements are compared with Geostationary Operational Environmental Satellite infrared (IR) measurements for the same case. The IR observations had a classic "V" cold feature commonly associated with severe Midwest thunderstorms. The minimum microwave brightness temperatures at 86 GHz, which primarily respond to ice scattering by larger ice particles, were located in the convective region and the warm interior region of the anvil top, between the arms of the IR V feature. The interior warm region was the only portion of the entire anvil region that had high 86-GHz polarization difference temperatures. Microphysical implications of these multispectral observations are discussed. The observations suggest that there are large variations of ice microphysical characteristics spatially and vertically in the anvil region. These observations are discussed in the context of previous dynamical and microphysical hypotheses on the IR V feature. JF - Monthly Weather Review AU - Heysfield, G M AU - Fulton, R AD - Mesoscale Dynamics Precipitation Branch, Lab. Atmos., Code 912, NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 2587 EP - 2595 VL - 122 IS - 11 SN - 0027-0644, 0027-0644 KW - Water Resources Abstracts KW - thunderstorms KW - USA KW - weather KW - tornadoes KW - storms KW - microwaves KW - remote sensing KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16708436?accountid=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=Monthly+Weather+Review&rft.atitle=Passive+microwave+structure+of+severe+tornadic+storms+on+16+November+1987&rft.au=Heysfield%2C+G+M%3BFulton%2C+R&rft.aulast=Heysfield&rft.aufirst=G&rft.date=1994-01-01&rft.volume=122&rft.issue=11&rft.spage=2587&rft.isbn=&rft.btitle=&rft.title=Monthly+Weather+Review&rft.issn=00270644&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 - tornadoes; storms; microwaves; remote sensing; thunderstorms; weather; USA ER - TY - JOUR T1 - Extent and duration of Antarctic surface melting AN - 16707219; 3701493 AB - The extent and duration of surface melting on the Antarctic ice shelves and margins of the Antarctic ice sheet are derived from satellite passive-microwave data for 1978-87. The occurrence of surface melting in daily maps of T sub(b) is indicated by a marked increase in microwave brightness temperature (T sub(b)), which is caused by moisture in the near-surface firn. T sub(b) increases of more than 30 deg above the annual-mean T sub(b) are chosen to indicate melting. Most Antarctic surface melting occurs during December and January. The observed melting is correlated with regional air temperatures, but some melt patterns also appear to be related to katabatic-wind effects. The correlations suggest that the surface melting in Antarctica increases about 3.5 x 10 super(6) d km super(2) per degree of summer temperature increase. The surface-melt index (duration times area of melting) calculated for Antarctica is 24 x 10 super(6) d km super(2), averaged over nine summers. The observed inter-annual and regional variability is large. Surface melting was most extensive during the 1982/83 summer (36 x 10 super(6) d km super(2)) and least extensive during the 1985/86 summer (15 x 10 super(6) d km super(2)). The data indicate a decline in surface melting over the 9 years, but meaningful inferences regarding trends in surface melting are precluded by the large inter-annual variability. JF - Journal of Glaciology AU - Zwally, HJ AU - Fiegles, S AD - NASA/Goddard Space Flight Cent. Oceans Ice Branch, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 463 EP - 476 VL - 40 IS - 136 SN - 0022-1430, 0022-1430 KW - Water Resources Abstracts KW - wind KW - satellite technology KW - polar regions KW - air temperature KW - glaciers KW - climatic changes KW - remote sensing KW - meltwater KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16707219?accountid=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+Glaciology&rft.atitle=Extent+and+duration+of+Antarctic+surface+melting&rft.au=Zwally%2C+HJ%3BFiegles%2C+S&rft.aulast=Zwally&rft.aufirst=HJ&rft.date=1994-01-01&rft.volume=40&rft.issue=136&rft.spage=463&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&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 - meltwater; glaciers; satellite technology; remote sensing; air temperature; wind; climatic changes; polar regions ER - TY - JOUR T1 - Anomalous HNO sub(3)/NO sub(x) ratio of remote tropospheric air: Conversion of nitric acid to formic acid and NO sub(x)? AN - 16706067; 3702208 JF - Geophysical Research Letters AU - Chatfield, R B AD - NASA Ames Res. Cent., Moffett Field, CA, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 2705 EP - 2708 VL - 21 IS - 24 SN - 0094-8276, 0094-8276 KW - formic acid KW - Pollution Abstracts KW - nitric acid KW - chemistry KW - oxidation KW - nitrogen oxides KW - troposphere KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16706067?accountid=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=Geophysical+Research+Letters&rft.atitle=Anomalous+HNO+sub%283%29%2FNO+sub%28x%29+ratio+of+remote+tropospheric+air%3A+Conversion+of+nitric+acid+to+formic+acid+and+NO+sub%28x%29%3F&rft.au=Chatfield%2C+R+B&rft.aulast=Chatfield&rft.aufirst=R&rft.date=1994-01-01&rft.volume=21&rft.issue=24&rft.spage=2705&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 - 2011-12-13 N1 - SubjectsTermNotLitGenreText - troposphere; nitric acid; nitrogen oxides; oxidation; chemistry ER - TY - JOUR T1 - Characterizing multiscale variability of zero intermittency in spatial rainfall AN - 16704605; 3696955 AB - In this paper the authors study how zero intermittency in spatial rainfall, as described by the fraction of area covered by rainfall, changes with spatial scale of rainfall measurement or representation. A statistical measure of intermittency that describes the size distribution of "voids" (nonrainy areas imbedded inside rainy areas) as a function of scale is also introduced. Morphological algorithms are proposed for reconstructing rainfall intermittency at fine scales given the intermittency at coarser scales. These algorithms are envisioned to be useful in hydroclimatological studies where the rainfall spatial variability at the subgrid scale needs to be reconstructed from the results of synoptic- or mesoscale meteorological numerical models. The developed methodologies are demonstrated and tested using data from a severe springtime midlatitude squall line and a mild midlatitude winter storm monitored by a meteorological radar in Norman, Oklahoma. JF - Journal of Applied Meteorology AU - Kumar, P AU - Foufoula-Georgiou, E AD - Univ. Space Res. Assoc., Hydrol. Sci. Branch, Code 974, NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 1516 EP - 1525 VL - 33 IS - 12 SN - 0894-8763, 0894-8763 KW - Water Resources Abstracts KW - meteorological data collection KW - spatial distribution KW - USA, Oklahoma, Norman KW - rainfall KW - statistical analysis KW - algorithms KW - SW 5080:Evaluation, processing and publication KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16704605?accountid=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+Applied+Meteorology&rft.atitle=Characterizing+multiscale+variability+of+zero+intermittency+in+spatial+rainfall&rft.au=Kumar%2C+P%3BFoufoula-Georgiou%2C+E&rft.aulast=Kumar&rft.aufirst=P&rft.date=1994-01-01&rft.volume=33&rft.issue=12&rft.spage=1516&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Hydrological and meteorological aspects of rainfall measurement and predictability. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - algorithms; rainfall; spatial distribution; statistical analysis; meteorological data collection; USA, Oklahoma, Norman ER - TY - JOUR T1 - Multiparameter radar study of rainfall: Potential application to area-time integral studies AN - 16704198; 3696944 AB - Multiparameter radars measure one or more additional parameters in addition to the conventional reflectivity factor. The combination of radar observations from a multiparameter radar is used to study the time evolution of rainstorms. A technique is presented to self-consistently compare the area-time integral (ATI) and rainfall volume estimates from convective storms, using two different measurements from a multiparameter radar. Rainfall volumes for the lifetime of individual storms are computed using the reflectivity at S band (10-cm wavelength) as well as one-way specific attenuation at X band (3-cm wavelength). Area-time integrals are computed by summing all areas in each radar snapshot having reflectivities (S band) in excess of a preselected threshold. The multiparameter radar data used in this study were acquired by the NCAR CP-2 radar during the Cooperative Huntsville Meteorological Experiment (COHMEX) and the Convection and Precipitation/Electrification Experiment (CaPE), respectively. ATI studies were accomplished in this work using multiparameter radar data acquired during the lifetime of six convective events that occurred in the COHMEX radar coverage area. A case study from the COHMEX field campaign (20 July 1986) was selected to depict the various stages in the evolution of a storm over which the ATI and rainfall volume computations were performed using multiparameter radar data. Another case study from the CaPE field campaign (12 August 1991) was used to demonstrate the evolution of a convective cell based on differential reflectivity observations. JF - Journal of Applied Meteorology AU - Raghavan, R AU - Chandrasekar, V AD - IGCRE-NASA, Code ES42, Marshall Space Flight Cent., Huntsville, AL 35812, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 1636 EP - 1645 VL - 33 IS - 12 SN - 0894-8763, 0894-8763 KW - Water Resources Abstracts KW - case studies KW - measuring instruments KW - time series analysis KW - rainfall KW - USA, Alabama, Huntsville KW - radar KW - reflectance KW - rainstorms KW - remote sensing KW - SW 5040:Data acquisition KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16704198?accountid=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+Applied+Meteorology&rft.atitle=Multiparameter+radar+study+of+rainfall%3A+Potential+application+to+area-time+integral+studies&rft.au=Raghavan%2C+R%3BChandrasekar%2C+V&rft.aulast=Raghavan&rft.aufirst=R&rft.date=1994-01-01&rft.volume=33&rft.issue=12&rft.spage=1636&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Hydrological and meteorological aspects of rainfall measurement and predictability. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - remote sensing; radar; rainfall; measuring instruments; rainstorms; time series analysis; case studies; reflectance; USA, Alabama, Huntsville ER - TY - JOUR T1 - A passive microwave technique for estimating rainfall and vertical structure information from space. Part I: Algorithm description AN - 16700487; 3636027 AB - This paper describes a multichannel physical approach for retrieving rainfall and vertical structure information from satellite-based passive microwave observations. The algorithm makes use of statistical inversion techniques based upon theoretically calculated relations between rainfall rates and brightness temperatures. Potential errors introduced into the theoretical calculations by the unknown vertical distribution of hydrometeors are overcome by explicitly accounting for diverse hydrometeor profiles. This is accomplished by allowing for a number of different vertical distributions in the theoretical brightness temperature calculations and requiring consistency between the observed and calculated brightness temperatures. This paper will focus primarily on the theoretical aspects of the retrieval algorithm, which includes a procedure used to account for inhomogeneities of the rainfall within the satellite field of view as well as a detailed description of the algorithm as it is applied over both ocean and land surfaces. The residual error between observed and calculated brightness temperatures is found to be an important quantity in assessing the uniqueness of the solution. It is further found that the residual error is a meaningful quantity that can be used to derive expected accuracies from this retrieval technique. Examples comparing the retrieved results as well as the detailed analysis of the algorithm performance under various circumstances are the subject of a companion paper. JF - Journal of Applied Meteorology AU - Kummerow, C AU - Giglio, L AD - Mesoscale Dyn. and Precip. Branch, Code 912, NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 3 EP - 18 VL - 33 IS - 1 SN - 0894-8763, 0894-8763 KW - Water Resources Abstracts KW - sensors KW - satellite technology KW - rainfall KW - statistical analysis KW - vertical distribution KW - algorithms KW - microwaves KW - remote sensing KW - SW 5040:Data acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16700487?accountid=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+Applied+Meteorology&rft.atitle=A+passive+microwave+technique+for+estimating+rainfall+and+vertical+structure+information+from+space.+Part+I%3A+Algorithm+description&rft.au=Kummerow%2C+C%3BGiglio%2C+L&rft.aulast=Kummerow&rft.aufirst=C&rft.date=1994-01-01&rft.volume=33&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&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 - remote sensing; satellite technology; sensors; microwaves; rainfall; algorithms; statistical analysis; vertical distribution ER - TY - JOUR T1 - Tropical impacts of SST forcing: A case study for 1987 versus 1988 AN - 16680146; 3692870 AB - The response of the NASA/Goddard Institute for Space Studies GCM to large tropical sea surface temperature (SST) anomalies is investigated by evaluating model simulations of the particularly contrasting summer monsoon seasons 1987 and 1988. These years are representative of the warm and cold phases, respectively, of a recent ENSO event. An ensemble averaging the results of three simulations was considered for each season, using monthly mean observed SST anomalies for June-August 1987 and 1988 as lower boundary forcing. Consistent with the ECMWF-analyzed winds, the simulations based on 1988 as compared to 1987 SST exhibit stronger upper-tropospheric irrotational circulation between the monsoon regions and the Southern Hemispheric subtropical anticyclones, a stronger Pacific Walker cell and a weaker subtropical westerly jet over the South Pacific. In the same vein, the modeled precipitation, indicating a more northerly position of the Pacific ITCZ in 1988 compared with 1987, is supported by satellite observations of outgoing longwave radiation and highly reflective clouds. JF - Journal of Climate AU - Druyan, L M AU - Hastenrath, S AD - NASA/Goddard Inst. for Space Stud., Columbia Univ., 2880 Broadway, New York, NY 10025, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 1316 EP - 1323 VL - 7 IS - 9 SN - 0894-8755, 0894-8755 KW - atmospheric circulation KW - case studies KW - model studies KW - precipitation KW - radiation KW - seawater KW - surface temperature KW - teleconnections KW - temperature anomalies KW - tropical meteorology KW - tropical regions KW - winds KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Marine KW - simulation KW - monsoons KW - atmospheric physics KW - temperature effects KW - water temperature KW - SW 5010:Network design KW - Q2 09244:Air-sea coupling KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16680146?accountid=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=Tropical+impacts+of+SST+forcing%3A+A+case+study+for+1987+versus+1988&rft.au=Druyan%2C+L+M%3BHastenrath%2C+S&rft.aulast=Druyan&rft.aufirst=L&rft.date=1994-01-01&rft.volume=7&rft.issue=9&rft.spage=1316&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 - 2014-05-06 N1 - SubjectsTermNotLitGenreText - atmospheric circulation; teleconnections; monsoons; atmospheric physics; surface temperature; tropical meteorology; temperature effects; water temperature; simulation; winds; temperature anomalies; case studies; tropical regions; seawater; radiation; model studies; precipitation; Marine ER - TY - JOUR T1 - Early detection of plant stress by digital imaging within narrow stress-sensitive wavebands AN - 16671993; 3681187 AB - Digital images of soybean canopies [Glycine max (L.) Merrill] were obtained within selected narrow wavebands (6-10 nm bandwidths) to determine their capability for early detection of plant stress. Images and physiological measurements of stress were acquired 2 days, 4 days, and 7 days following application of control, drought, and herbicide [(3,4-dichlorophenyl)-1, 1-dimethylurea, or DCMU] treatments. As a result of frequent rainfall, drought stress never occurred. However, exposure to herbicide rapidly induced plant stress. By day 4, the ratio of variable to maximum leaf fluorescence (F sub(v)/F sub(m)) decreased and leaf water potentials ( psi sub(w)) increased in the herbicide treated soybean, indicating damage to the photosynthetic apparatus and stomatal closure. Also, Munsell leaf color had increased from approximately 5GY 4.6/5.7 to a lighter green-yellow value. Canopy reflectances at 670 nm, 694 nm, and in the 410-740 nm band (R sub(vis)), as well as reflectance at 694 nm divided by reflectance at 760 nm (R sub(694)/R sub(760)), detected stress simultaneously with the physiological measurements and increased consistently with stress through day 7. Reflectances at 420 nm and 600 nm, together with R sub(600)/R sub(760) and R sub(vis)/R sub(760), did not increase until leaves were yellow or brown and wilted and canopies had begun to collapse on day 7. None of the reflectance or reflectance ratio images detected stress prior to visible color changes. This was attributed primarily to the rapid inducement of chlorosis by the herbicide. Reflectance in narrow wavebands within the 690-700 nm region and its ratio with near-infrared reflectance should provide earlier detection of stress-induced chlorosis compared with broad band systems or narrow bands located at lesser wavelengths. JF - Remote Sensing of Environment AU - Carter, G A AU - Miller, R L AD - Earth Obs. Res. Off., NASA, Stennis Space Cent., MS 39529, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 295 EP - 302 VL - 50 IS - 3 SN - 0034-4257, 0034-4257 KW - Ecology Abstracts KW - stress KW - plants KW - Glycine max KW - canopies KW - remote sensing KW - D 04637:Legumes KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16671993?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Early+detection+of+plant+stress+by+digital+imaging+within+narrow+stress-sensitive+wavebands&rft.au=Carter%2C+G+A%3BMiller%2C+R+L&rft.aulast=Carter&rft.aufirst=G&rft.date=1994-01-01&rft.volume=50&rft.issue=3&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - Glycine max; plants; stress; remote sensing; canopies ER - TY - JOUR T1 - A global 1 degree by 1 degree NDVI data set for climate studies. Part 2: The generation of global fields of terrestrial biophysical parameters from the NDVI AN - 16671120; 3681180 AB - A satellite-based 1 degree by 1 degree normalized difference vegetation index (NDVI) data set has been processed to derive land surface parameters for general circulation models of the atmosphere (GCMs). Prior to calculation of the land surface parameters, corrections were applied to the source NDVI data set to account for (i) obvious anomalies in the data time-series, (ii) the effect of variations in solar zenith angle, (iii) data dropouts in cold regions where a temperature threshold procedure designed to screen for clouds also eliminates cold land surface points, and (iv) persistent cloud cover in the tropics. An outline of the procedures for calculating land surface parameters from the corrected NDVI data set is given, and a brief description is provided of source material that was used in addition to the NDVI data. The data sets summarized in this paper should represent improvements over prescriptions currently used in land surface parameterizations in that the spatial and temporal dynamics of key land surface parameters, in particular of those related to vegetation, are obtained from direct measurements rather than indirectly inferred from survey-based land cover classifications. JF - International Journal of Remote Sensing AU - Sellers, P J AU - Tucker, C J AU - Collatz, G J AU - Los, SO AU - Justice, C O AU - Dazlich, DA AU - Randall, DA AD - Biospheric Sci. Branch, code 923, NASA/GSFC, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 3519 EP - 3545 VL - 15 IS - 17 SN - 0143-1161, 0143-1161 KW - Ecology Abstracts KW - biophysics KW - vegetation KW - climate KW - remote sensing KW - D 04100:Terrestrial ecosystems - general KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16671120?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=A+global+1+degree+by+1+degree+NDVI+data+set+for+climate+studies.+Part+2%3A+The+generation+of+global+fields+of+terrestrial+biophysical+parameters+from+the+NDVI&rft.au=Sellers%2C+P+J%3BTucker%2C+C+J%3BCollatz%2C+G+J%3BLos%2C+SO%3BJustice%2C+C+O%3BDazlich%2C+DA%3BRandall%2C+DA&rft.aulast=Sellers&rft.aufirst=P&rft.date=1994-01-01&rft.volume=15&rft.issue=17&rft.spage=3519&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - climate; remote sensing; biophysics; vegetation ER - TY - JOUR T1 - A satellite observational and numerical study of precipitation characteristics in western North Atlantic tropical cyclones AN - 16648590; 3654429 AB - Special Sensor Microwave/Imager (SSM/I) observations were used to examine the spatial and temporal changes of the precipitation characteristics of tropical cyclones. SSM/I observations were also combined with the results of a tropical cyclone numerical model to examine the role of inner-core diabatic heating in subsequent intensity changes of tropical cyclones. Included in the SSM/I observations were rainfall characteristics of 18 named western North Atlantic tropical cyclones between 1987 and 1989. The SSM/I rain-rate algorithm that employed the 85-GHz channel provided an analysis of the rain-rate distribution in greater detail. However, the SSM/I algorithm underestimated the rain rates when compared to in situ techniques but appeared to be comparable to the rain rates obtained from other satellite-borne passive microwave radiometers. The analysis of SSM/I observations found that more intense systems had higher rain rates, more latent heat release, and a greater contribution from heavier rain to the total tropical cyclone rainfall. In addition, regions with the heaviest rain were found near the center of the most intense tropical cyclones. Observational analysis from SSM/I also revealed that the greatest rain rates in the inner-core regions were found in the right half of fast-moving tropical cyclones, while the heaviest rain rates in slow-moving tropical cyclones were found in the forward half. The combination of SSM/I observations and an interpretation of numerical model simulations revealed that the correlation between changes in the inner core diabatic heating and the subsequent intensity became greater as the tropical cyclones became more intense. JF - Journal of Applied Meteorology AU - Rodgers, E B AU - Chang, S W AU - Pierce, H F AD - Mesoscale Dyn. Precip. Branch (Code 912), Lab. Atmos., NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 129 EP - 139 VL - 33 IS - 2 SN - 0894-8763, 0894-8763 KW - ANW KW - Atlantic Ocean KW - SSM/I KW - Satellite sensing KW - Spatial variations KW - atmospheric precipitations KW - precipitation KW - satellite technology KW - temporal variations KW - tropical cyclones KW - tropical depressions KW - tropical meteorology KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Cyclones KW - Marine KW - numerical analysis KW - sensors KW - remote sensing KW - Q2 09242:Observations and measurements at sea KW - Q2 09393:Remote geosensing KW - SW 5040:Data acquisition KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16648590?accountid=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+Applied+Meteorology&rft.atitle=A+satellite+observational+and+numerical+study+of+precipitation+characteristics+in+western+North+Atlantic+tropical+cyclones&rft.au=Rodgers%2C+E+B%3BChang%2C+S+W%3BPierce%2C+H+F&rft.aulast=Rodgers&rft.aufirst=E&rft.date=1994-01-01&rft.volume=33&rft.issue=2&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&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 - Cyclones; Spatial variations; sensors; Satellite sensing; tropical depressions; atmospheric precipitations; numerical analysis; temporal variations; tropical meteorology; remote sensing; satellite technology; precipitation; tropical cyclones; Marine ER - TY - JOUR T1 - The environmental influence on tropical cyclone precipitation AN - 16648103; 3654474 AB - The intensity, spatial, and temporal changes in precipitation were examined in three North Atlantic hurricanes during 1989 (Dean, Gabrielle, and Hugo) using precipitation estimates made from Special Sensor Microwave/Imager (SSM/I) measurements. In addition, analyses from a barotropic hurricane forecast model and the European Centre for Medium-Range Weather Forecast model were used to examine the relationship between the evolution of the precipitation in these tropical cyclones and external forcing. The external forcing parameters examined were 1) mean climatological sea surface temperatures, 2) vertical wind shear, 3) environmental tropospheric water vapor flux, and 4) upper-tropospheric eddy relative angular momentum flux convergence. The analyses revealed that 1) the SSM/I precipitation estimates were able to delineate and monitor convective ring cycles similar to those observed with land-based and aircraft radar and in situ measurements; 2) tropical cyclone intensification was observed to occur when these convective rings propagated into the inner core of these systems (within 111 km of the center) and when the precipitation rates increased; 3) tropical cyclone weakening was observed to occur when these inner-core convective rings dissipated; 4) the inward propagation of the outer convective rings coincided with the dissipation of the inner convective rings when they came within 55 km of each other; 5) in regions with the combined warm sea surface temperatures (above 26 degree C) and low vertical wind shear (less than 5 m/s), convective rings outside the region of strong lower-tropospheric inertial stability could be initiated by strong surges of tropospheric moisture, while convective rings inside the region of strong lower-tropospheric inertial stability could be enhanced by upper-tropospheric eddy relative angular momentum flux convergence. JF - Journal of Applied Meteorology AU - Rodgers, E B AU - Baik, Jong-Jin AU - Pierce, H F AD - Mesoscale Dynamics Precip. Branch (Code 912), Lab. Atmos., NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 573 EP - 593 VL - 33 IS - 5 SN - 0894-8763, 0894-8763 KW - ANW KW - ASW KW - SSM/I KW - abiotic factors KW - atmospheric precipitations KW - atmospheric water KW - cellular convection KW - forecasting KW - microwave imagery KW - model testing KW - models KW - moisture transfer KW - ocean-atmosphere system KW - precipitation KW - satellite sensing KW - surface temperature KW - tropical cyclones KW - tropical meteorology KW - wind shear KW - wind velocity KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - weather forecasting KW - water vapor KW - environmental effects KW - Marine KW - cyclones KW - water temperature KW - hurricanes KW - remote sensing KW - Q2 09242:Observations and measurements at sea KW - SW 5040:Data acquisition KW - SW 0815:Precipitation KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16648103?accountid=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+Applied+Meteorology&rft.atitle=The+environmental+influence+on+tropical+cyclone+precipitation&rft.au=Rodgers%2C+E+B%3BBaik%2C+Jong-Jin%3BPierce%2C+H+F&rft.aulast=Rodgers&rft.aufirst=E&rft.date=1994-01-01&rft.volume=33&rft.issue=5&rft.spage=573&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&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 - weather forecasting; moisture transfer; surface temperature; water vapor; tropical meteorology; cyclones; environmental effects; models; abiotic factors; atmospheric precipitations; ocean-atmosphere system; cellular convection; microwave imagery; satellite sensing; water temperature; hurricanes; wind shear; remote sensing; wind velocity; model testing; forecasting; atmospheric water; precipitation; tropical cyclones; Marine ER - TY - JOUR T1 - Relations between SMMR 37 GHz polarization difference and rainfall, and atmospheric carbon dioxide concentration AN - 16645570; 3687042 AB - Rainfall and the atmospheric carbon dioxide (CO sub(2)) concentration may be considered as proxy variables for spatial and temporal changes of vegetation. Together with theoretical analysis, correlations between these meteorological data and 37 GHz polarization difference (PD) have been studied to test a hypothesis that PD is an indicator of vegetation characteristics. Previously published relations between PD and rainfall, and atmospheric CO sub(2) concentration are discussed in response to issues raised in Tucker (1992) that: (1) the relation between rainfall and PD was based upon selective information, and (2) winter conditions in the more northern latitudes (e.g. snow, low atmospheric water vapour, etc.) result in the appearance of a relation between PD and CO sub(2) concentration. It is shown that: (1) the previously published relation between PD and rainfall is valid at a high level of statistical significance when rainfall stations are screened objectively, and (2) a relationship between PD and CO sub(2) concentration does exist that is not tied to conditions or relationships existent in the winter at northern latitudes. Highly significant correlations between PD and rainfall, and between PD and CO sub(2) concentration would suggest that the hypothesis being tested is true. JF - International Journal of Remote Sensing AU - Choudhury, B J AU - DiGirolamo, N E AD - Hydrol. Sci. Branch, NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 3643 EP - 3661 VL - 15 IS - 18 SN - 0143-1161, 0143-1161 KW - Water Resources Abstracts KW - spatial distribution KW - rainfall KW - statistical analysis KW - atmospheric physics KW - temporal distribution KW - radiometry KW - carbon dioxide KW - remote sensing KW - SW 5040:Data acquisition KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16645570?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=Relations+between+SMMR+37+GHz+polarization+difference+and+rainfall%2C+and+atmospheric+carbon+dioxide+concentration&rft.au=Choudhury%2C+B+J%3BDiGirolamo%2C+N+E&rft.aulast=Choudhury&rft.aufirst=B&rft.date=1994-01-01&rft.volume=15&rft.issue=18&rft.spage=3643&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - remote sensing; radiometry; rainfall; atmospheric physics; carbon dioxide; statistical analysis; spatial distribution; temporal distribution ER - TY - JOUR T1 - A passive microwave technique for estimating rainfall and vertical structure information from space. Part II: Applications to SSM/I data AN - 16633609; 3636028 AB - A multichannel physical approach for retrieving rainfall and its vertical structure from SSM/I observations is examined. While a companion paper was devoted exclusively to the description of the algorithm, its strengths, and its limitations, the main focus of this paper is to report on the results, applicability, and expected accuracies from this algorithm. Some examples are given that compare retrieved results with ground-based radar data from different geographical regions to illustrate the performance and utility of the algorithm under distinct rainfall conditions. More quantitative validation is accomplished using two months of radar data from Darwin, Australia, and the radar network over Japan. Instantaneous comparisons at Darwin indicate that root-mean-square errors for 1.25 degree areas over water are 0.09 mm/h compared to the mean rainfall value of 0.224 mm/h while the correlation exceeds 0.9. Similar results are obtained over the Japanese validation site with rms errors of 0.615 mm/h compared to the mean of 0.880 mm/h and a correlation of 0.9. Results are less encouraging over land with root-mean-square errors somewhat larger than the mean rain rates and correlations of only 0.71 and 0.62 for Darwin and Japan, respectively. These validation studies are further used in combination with the theoretical treatment of expected accuracies developed in the companion paper to define error estimates on a broader scale than individual radar sites from which the errors may be analyzed. Comparisons with simpler techniques that are based on either emission or scattering measurements are used to illustrate the fact that the current algorithm, while better correlated with the emission methods over water, cannot be reduced to either of these simpler methods. JF - Journal of Applied Meteorology AU - Kummerow, C AU - Giglio, L AD - Mesoscale Dyn. and Precip. Branch, Code 912, NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 19 EP - 34 VL - 33 IS - 1 SN - 0894-8763, 0894-8763 KW - verticle distribution KW - Water Resources Abstracts KW - sensors KW - satellite technology KW - comparison studies KW - rainfall KW - statistical analysis KW - microwaves KW - remote sensing KW - SW 5040:Data acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16633609?accountid=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+Applied+Meteorology&rft.atitle=A+passive+microwave+technique+for+estimating+rainfall+and+vertical+structure+information+from+space.+Part+II%3A+Applications+to+SSM%2FI+data&rft.au=Kummerow%2C+C%3BGiglio%2C+L&rft.aulast=Kummerow&rft.aufirst=C&rft.date=1994-01-01&rft.volume=33&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&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 - remote sensing; satellite technology; sensors; microwaves; rainfall; statistical analysis; comparison studies ER - TY - CONF T1 - Synergism of multispectral satellite observations for estimating regional land surface evaporation AN - 16632460; 3630436 AB - The global water cycle is perhaps the most important of all the biogeochemical cycles, and land surface evaporation, which is a significant component of the water cycle, is also linked with heat and carbon cycles. Long-term, regional and global land surface evaporation have been computed using meteorological and river runoff data, although much uncertainties remain due to inadequacy of the input data. Multispectal observations could aid in estimating evaporation by providing spatially representative, multitemporal data for surface characteristics and fluxes. Estimation of evaporation using the residual method with course resolution multispectral satellite observations in the optical region is briefly reviewed. Then, semiempirical equations are used to relate unstressed transpiration to potential evaporation and vegetation indices, and correlations among multispectral data are discussed in the context of estimating evaporation. JF - Remote Sensing of Environment AU - Choudhury, B J Y1 - 1994 PY - 1994 DA - 1994 SP - 264 EP - 274 VL - 49 IS - 3 KW - Water Resources Abstracts KW - satellite technology KW - hydrologic budget KW - evaporation KW - runoff KW - floods KW - vegetation KW - remote sensing KW - drought KW - SW 5040:Data acquisition KW - SW 0830:Evaporation and transpiration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16632460?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Synergism+of+multispectral+satellite+observations+for+estimating+regional+land+surface+evaporation&rft.au=Choudhury%2C+B+J&rft.aulast=Choudhury&rft.aufirst=B&rft.date=1994-01-01&rft.volume=49&rft.issue=3&rft.spage=264&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - Regional rainfall climatologies derived from Special Sensor Microwave Imager (SSM/I) data AN - 16627827; 3661170 AB - Climatologies of convective precipitation were derived from passive microwave observations from the Special Sensor Microwave Imager using a scattering-based algorithm of Adler et al. Data were aggregated over periods of 3-5 months using data from 4 to 5 years. Data were also stratified by satellite overpass times (primarily 06 00 and 18 00 local time). Four regions [Mexico, Amazonia, western Africa, and the western equatorial Pacific Ocean (TOGA COARE area)] were chosen for their meteorological interest and relative paucity of conventional observations. JF - Bulletin of the American Meteorological Society AU - Negri, A J AU - Adler, R F AU - Nelkin, E J AU - Huffman, G J AD - Lab. Atmos., NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 1165 EP - 1182 VL - 75 IS - 7 SN - 0003-0007, 0003-0007 KW - convective precipitation KW - meteorological observations KW - microwave imagery KW - microwave radar KW - rainfall area KW - regional analysis KW - satellite sensing KW - satellite technology KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Marine KW - rainfall KW - microwaves KW - sensors KW - climatology KW - I, Pacific KW - remote sensing KW - Q2 09393:Remote geosensing KW - SW 5040:Data acquisition KW - Q2 09241:General KW - SW 0815:Precipitation KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16627827?accountid=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=Bulletin+of+the+American+Meteorological+Society&rft.atitle=Regional+rainfall+climatologies+derived+from+Special+Sensor+Microwave+Imager+%28SSM%2FI%29+data&rft.au=Negri%2C+A+J%3BAdler%2C+R+F%3BNelkin%2C+E+J%3BHuffman%2C+G+J&rft.aulast=Negri&rft.aufirst=A&rft.date=1994-01-01&rft.volume=75&rft.issue=7&rft.spage=1165&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+American+Meteorological+Society&rft.issn=00030007&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 - sensors; climatology; rainfall; microwave radar; microwave imagery; satellite sensing; microwaves; meteorological observations; remote sensing; satellite technology; regional analysis; convective precipitation; rainfall area; I, Pacific; Marine ER - TY - JOUR T1 - Evaluating GCM land surface hydrology parameterizations by computing river discharges using a runoff routing model: Application to the Mississippi basin AN - 16619543; 3654433 AB - To relate general circulation model (GCM) hydrologic output to readily available river hydrographic data, a runoff routing scheme that routes gridded runoffs through regional- or continental-scale river drainage basins is developed. By following the basin overland flow paths, the routing model generates river discharge hydrographs that can be compared to observed river discharges, thus allowing an analysis of the GCM representation of monthly, seasonal, and annual water balances over large regions. The runoff routing model consists of two linear reservoirs, a surface reservoir and a groundwater reservoir, which store and transport water. The water transport mechanisms operating within these two reservoirs are differentiated by their time scales; the groundwater reservoir transports water much more slowly than the surface reservoir. The groundwater reservoir feeds the corresponding surface store, and the surface stores are connected via the river network. The routing model is implemented over the GEWEX (Global Energy and Water Cycle Experiment) Continental-Scale International Project Mississippi River basin on a rectangular grid of 2 degree x 2.5 degree . Two land surface hydrology parameterizations provide the gridded runoff data required to run the runoff routing scheme: the variable infiltration capacity model, and the soil moisture component of the simple biosphere model. These parameterizations are driven with 4 degree x 5 degree gridded climatological potential evapotranspiration and 1979 First GARP (Global Atmospheric Research Program) Global Experiment precipitation. These investigations have quantified the importance of physically realistic soil moisture holding capacities, evaporation parameters, and runoff mechanisms in land surface hydrology formulations. JF - Journal of Applied Meteorology AU - Liston, GE AU - Sud, Y C AU - Wood, E F AD - Climate Radiat. Branch, Mail Code 913, NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 394 EP - 405 VL - 33 IS - 3 SN - 0894-8763, 0894-8763 KW - atmospheric circulation KW - catchment area KW - catchment areas KW - hydrographs KW - hydrologic budget KW - model studies KW - models KW - river discharge KW - river forecasting KW - routing KW - surface runoff KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - hydrology KW - river basins KW - prediction KW - USA, Mississippi R. KW - Freshwater KW - hydrologic cycle KW - runoff KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers KW - Q2 09162:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16619543?accountid=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+Applied+Meteorology&rft.atitle=Evaluating+GCM+land+surface+hydrology+parameterizations+by+computing+river+discharges+using+a+runoff+routing+model%3A+Application+to+the+Mississippi+basin&rft.au=Liston%2C+GE%3BSud%2C+Y+C%3BWood%2C+E+F&rft.aulast=Liston&rft.aufirst=GE&rft.date=1994-01-01&rft.volume=33&rft.issue=3&rft.spage=394&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&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 - models; hydrology; atmospheric circulation; hydrologic cycle; river basins; river discharge; runoff; catchment area; prediction; hydrologic budget; model studies; hydrographs; river forecasting; routing; surface runoff; catchment areas; USA, Mississippi R.; Freshwater ER - TY - JOUR T1 - On-line spacecraft environment interactions information system AN - 16617460; 3639804 AB - EnviroNET is a computerized text type data base that provides rapid access to the latest information on a variety of space environments and spacecraft interactions of importance to understanding anomalies. Although originally intended as a design guide for Space Shuttle users, it has grown into a valuable resource of information on spacecraft charging and near-Earth charging environments. Included in the services is interactive modeling, some of which are also of interest for diagnosing anomalies. A more recent development is the on-line expert system for diagnosing anomalies. The expert system combines algorithms with expert heuristic knowledge, and uses confidence factors in variables and rules to calculate results with degrees of confidence associated with them. JF - Journal of Spacecraft and Rockets AU - Lauriente, M AD - NASA Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 182 EP - 185 VL - 31 IS - 2 SN - 0022-4650, 0022-4650 KW - EnviroNET KW - flight control systems KW - Health & Safety Science Abstracts KW - expert systems KW - spacecraft KW - H SA2.20:SPACECRAFT INSTRUMENTATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16617460?accountid=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=Journal+of+Spacecraft+and+Rockets&rft.atitle=On-line+spacecraft+environment+interactions+information+system&rft.au=Lauriente%2C+M&rft.aulast=Lauriente&rft.aufirst=M&rft.date=1994-01-01&rft.volume=31&rft.issue=2&rft.spage=182&rft.isbn=&rft.btitle=&rft.title=Journal+of+Spacecraft+and+Rockets&rft.issn=00224650&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 - spacecraft; expert systems ER - TY - JOUR T1 - NASA's Pathfinder data set programme: Land surface parameters AN - 16614615; 3681194 AB - The Pathfinder data set concept was initiated by the Earth Observing System (EOS) Program Office at the National Aeronautics and Space Administration (NASA) Headquarters to address how existing satellite-derived data sets could be used for global change research prior to the availability of EOS data. They are defined as long time-series satellite data sets capable of stable calibration which can be reprocessed using a community-consensus set of algorithms. In October 1990 NASA and the National Oceanic and Atmospheric Administration (NOAA) initiated a joint Pathfinder program. Data from three NOAA and one Defense Meteorological Satellite Program (DMSP) instruments have been designated as Pathfinders under this activity. In addition to this joint effort, NASA has also initiated a Pathfinder development effort for data from both Landsat and the Scanning Multichannel Microwave Radiometer (SMMR) flown on NASA's Nimbus-7 satellite. The AVHRR Pathfinder was the first set of projects to be initiated. Because the data have distinct disciplinary user heritages and expertise associated with the atmosphere, ocean, and land, three separate Science Working Groups were formed to recommend and comment on all stages of data set design and development. One of these groups is the AVHRR Land Pathfinder Science Working Group. Additionally, low resolution land surface parameters will be produced by the SSM/I and SMMR Pathfinder projects. A Global 1 km Data Set Project, in the spirit of Pathfinder and partially funded with NASA Pathfinder funding, was begun in October 1991 and began collecting data continuously on a daily basis on 1 April 1992. One of the goals of Pathfinder data set production, to make available consistent long-time series data sets for global change research, has encouraged substantial interdisciplinary use of the data, and therefore consideration of problems of data fusion or integration. Work in producing the Pathfinder data sets has exposed important technical problems which scientists encounter impeding interuse of data sets. Presently, an experiment involving scientists and systems engineers working with several Pathfinder data sets is exploring possible solutions to some of these technical problems. JF - International Journal of Remote Sensing AU - Maiden, ME AU - Greco, S AD - Code YDD, NASA Headquarters, Washington, DC 20546, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 3333 EP - 3345 VL - 15 IS - 17 SN - 0143-1161, 0143-1161 KW - Ecology Abstracts KW - geographic information systems KW - radiometry KW - satellites KW - remote sensing KW - D 04100:Terrestrial ecosystems - general KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16614615?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=NASA%27s+Pathfinder+data+set+programme%3A+Land+surface+parameters&rft.au=Maiden%2C+ME%3BGreco%2C+S&rft.aulast=Maiden&rft.aufirst=ME&rft.date=1994-01-01&rft.volume=15&rft.issue=17&rft.spage=3333&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - remote sensing; satellites; geographic information systems; radiometry ER - TY - JOUR T1 - A global 1 degree by 1 degree NDVI data set for climate studies derived from the GIMMS continental NDVI data AN - 16610868; 3681179 AB - A nine-year (1982-1990) global normalized difference vegetation index (NDVI) data set with a spatial resolution of 1 degree by 1 degree and a temporal resolution of one month was compiled for use in climate studies. This data set was derived from higher resolution (5-8 km) monthly continental NDVI data sets that have been processed and archived by the Global Inventory Monitoring and Modelling Studies (GIMMS) group at NASA/Goddard Space Flight Center. The continental GIMMS NDVI data sets were calculated from Global Area Coverage (GAC) data collected at daily intervals by the Advanced Very High Resolution Radiometer (AVHRR) onboard the NOAA-7, -9 and -11 satellites. The global 1 degree by 1 degree NDVI data set was produced to calculate land surface parameters for use within general circulation model J of the atmosphere (GCM). In view of this quantitative application, an evaluation is given of the representation by the NDVI data of the spectral properties of vegetation at the landsurface. Errors are defined as deviations from measurements obtained under standard conditions, i.e., conditions at the-top-of-the-atmosphere with no clouds, clear atmosphere, near-nadir viewing angles, overhead Sun, and invariant soil background. The discussion includes an assessment of (1) the data collected and processed onboard the AVHRR; (2) processing of the AVHRR data into the continental GIMMS NDVI data sets; (3) resampling of the continental data sets to a 1 degree by 1 degree data set; and (4) propagation of inconsistencies and biases from (1), (2) and (3) into the 1 degree by 1 degree global NDVI data. Examples are shown of the temporal and spatial variations in spectral properties of vegetation contained in the 1 degree by 1 degree NDVI data, and these are compared with the dynamics of biophysical parameters derived from land cover classes that were used in previous climate studies. JF - International Journal of Remote Sensing AU - Los, SO AU - Justice, C O AU - Tucker, C J AD - Biospheric Sci. Branch, code g23, NASA/GSFC, Greenbelt, MD 20772, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 3493 EP - 3518 VL - 15 IS - 17 SN - 0143-1161, 0143-1161 KW - Ecology Abstracts KW - landscape KW - vegetation KW - climate KW - remote sensing KW - D 04100:Terrestrial ecosystems - general KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16610868?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=A+global+1+degree+by+1+degree+NDVI+data+set+for+climate+studies+derived+from+the+GIMMS+continental+NDVI+data&rft.au=Los%2C+SO%3BJustice%2C+C+O%3BTucker%2C+C+J&rft.aulast=Los&rft.aufirst=SO&rft.date=1994-01-01&rft.volume=15&rft.issue=17&rft.spage=3493&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - climate; remote sensing; vegetation; landscape ER - TY - JOUR T1 - Convective transport over the central United States and its role in regional CO and ozone budgets AN - 16606276; 3678487 AB - We have constructed a regional budget for boundary layer carbon monoxide over the central United States (32.5 degree -50 degree N, 90 degree -105 degree W), emphasizing a detailed evaluation of deep convective vertical fluxes appropriate for the month of June. Deep convective venting of the boundary layer (upward) dominates other components of the CO budget, e.g., downward convective transport, loss of CO by oxidation, anthropogenic emissions, and CO produced from oxidation of methane, isoprene, and anthropogenic nonmethane hydrocarbons (NMHCs). Calculations of deep convective venting are based on the method of Pickering et al. [1992a] which uses a satellite-derived deep convective cloud climatology along with transport statistics from convective cloud model simulations of observed prototype squall line events. We estimate that deep convective transport of CO and other precursors over the central United States in early summer leads to a gross production of 0.66-1.1 Gmol O sub(3) d super(-1) in good agreement with estimates of O sub(3) production from boundary layer venting in a continental-scale model. In this respect the central U.S. region acts as a "chimney" for the country, and presumably this O sub(3) contributes to high background levels of O sub(3) in the eastern United States and O sub(3) export to the North Atlantic. JF - Journal of Geophysical Research. D. Atmospheres AU - Thompson, A M AU - Pickering, KE AU - Dickerson, R R AU - Ellis, WG Jr AU - Jacob, D J AU - Scala, J R AU - Tao, Wei-Kuo AU - McNamara, D P AU - Simpson, J AD - NASA Goddard Space Flight Cent., Greenbelt, MD, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 18703 EP - 18711 VL - 99 IS - 9 SN - 0148-0227, 0148-0227 KW - transport processes KW - Pollution Abstracts KW - carbon monoxide KW - USA, Central KW - ozone KW - troposphere KW - boundary layers KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16606276?accountid=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=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=Convective+transport+over+the+central+United+States+and+its+role+in+regional+CO+and+ozone+budgets&rft.au=Thompson%2C+A+M%3BPickering%2C+KE%3BDickerson%2C+R+R%3BEllis%2C+WG+Jr%3BJacob%2C+D+J%3BScala%2C+J+R%3BTao%2C+Wei-Kuo%3BMcNamara%2C+D+P%3BSimpson%2C+J&rft.aulast=Thompson&rft.aufirst=A&rft.date=1994-01-01&rft.volume=99&rft.issue=9&rft.spage=18703&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&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 - USA, Central; boundary layers; troposphere; carbon monoxide; ozone ER - TY - JOUR T1 - The evolution of convective storms from their footprints on the sea as viewed by synthetic aperture radar from space AN - 16602924; 3661214 AB - SEASAT synthetic aperture radar (SAR) echoes from the sea have previously been shown to be the result of rain and winds produced by convective storms; rain damps the surface waves and causes echo-free holes, while the diverging winds associated with the downdraft generate waves and associated echoes surrounding the holes. Gust fronts are also evident. Such a snapshot from 8 July 1978 has been examined in conjunction with ground-based radar. This leads to the conclusion that the SAR storm footprints resulted from storm processes that occurred up to an hour or more prior to the snapshot. A sequence of events is discerned from the SAR imagery in which new cell growth is triggered in between the converging outflows of two preexisting cells. In turn, the new cell generates a mini-squall line along its expanding gust front. While such phenomena are well known over land, the spaceborne SAR now allows important inferences to be made about the nature and frequency of convective storms over the oceans. The storm effects on the sea have significant implications for spaceborne wind scatterometry and rainfall measurements. Some of the findings herein remain speculative because of the great distance to the Miami weather radar-the only source of corroborative data. JF - Bulletin of the American Meteorological Society AU - Atlas, D AU - Black, P G AD - NASA Goddard Space Flight Cent., Code 910.2, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 1183 EP - 1190 VL - 75 IS - 7 SN - 0003-0007, 0003-0007 KW - Gulf Stream KW - convective precipitation KW - satellite sensing KW - satellite technology KW - sea surface KW - synthetic aperture radar KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Marine KW - rainfall KW - radar KW - AN, Gulf Stream KW - sea level KW - storms KW - remote sensing KW - Q2 09393:Remote geosensing KW - SW 5040:Data acquisition KW - Q2 09241:General KW - SW 0815:Precipitation KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16602924?accountid=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=Bulletin+of+the+American+Meteorological+Society&rft.atitle=The+evolution+of+convective+storms+from+their+footprints+on+the+sea+as+viewed+by+synthetic+aperture+radar+from+space&rft.au=Atlas%2C+D%3BBlack%2C+P+G&rft.aulast=Atlas&rft.aufirst=D&rft.date=1994-01-01&rft.volume=75&rft.issue=7&rft.spage=1183&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+American+Meteorological+Society&rft.issn=00030007&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 - rainfall; sea level; radar; storms; satellite sensing; sea surface; synthetic aperture radar; remote sensing; satellite technology; convective precipitation; AN, Gulf Stream; Marine ER - TY - JOUR T1 - Utilization of sunglint for classification of lake surface area AN - 16602886; 3661314 AB - Lake Chad, located in the Western African Sahel, lies at the borders of Cameroon, Chad, Niger, and Nigeria. The lake is situated in a closed catchment basin (mid-craton sag). Lake area varies primarily because of the effluent discharge rates of the Lagone-Chari River systems rather than by differences in local rainfall. In an earlier study of Lake Chad, Mohler et al. (1989) reported on measurement of this fluctuating water body through use of registered space photographs. The authors documented maximum and minimum lake area at 22,772 km super(2) and 1,653 km super(2), respectively. While conducting a photographic data search for the Lake Chad study site, the author noticed a very interesting set of photographs. These two photographs were taken within seconds of one another. The obvious difference between the two images is the effect of sunglint (silver cast to the water) on the lake area. JF - Geocarto International AU - Mohler, RRJ AD - Lockheed Eng. Sci. Co., 2400 NASA Rd. 1, Mail Code C42, Houston, TX 77258, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 59 EP - 62 VL - 9 IS - 3 SN - 1010-6049, 1010-6049 KW - freshwater lakes KW - light reflection KW - radiation KW - satellite sensing KW - satellite technology KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Africa, Chad L. KW - lakes KW - surface water KW - Freshwater KW - optical properties KW - classification KW - solar radiation KW - reflectance KW - remote sensing KW - SW 5040:Data acquisition KW - Q2 09162:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16602886?accountid=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=Geocarto+International&rft.atitle=Utilization+of+sunglint+for+classification+of+lake+surface+area&rft.au=Mohler%2C+RRJ&rft.aulast=Mohler&rft.aufirst=RRJ&rft.date=1994-01-01&rft.volume=9&rft.issue=3&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Geocarto+International&rft.issn=10106049&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 - light reflection; optical properties; freshwater lakes; classification; solar radiation; surface water; lakes; satellite sensing; reflectance; remote sensing; satellite technology; radiation; Africa, Chad L.; Freshwater ER - TY - JOUR T1 - The Pathfinder AVHRR land data set: An improved coarse resolution data set for terrestrial monitoring AN - 16598460; 3681193 AB - A reprocessing of 12 years of global data from the Advanced Very High Resolution Radiometers on board the afternoon-viewing NOAA series satellites (NOAA-7, 9, and 11) is taking place as part of the NASA/NOAA Pathfinder project. A Pathfinder AVHRR land data set is being produced which is composed of global, 8 km NDVI with associated reflectances, brightness temperatures, solar and scan geometry, and cloud estimation. This data set is being processed using the best available methods in order to produce a consistent time series of data of unprecedented quality. Methods used in processing include a cross-satellite calibration, navigation using an orbital model and updated ephemerides, and correction for Rayleigh scattering. The data will be available to the community as both daily and composite data, and analysis of this long time series is expected to provide insight into terrestrial processes, seasonal and annual variability, and methods for handling large volume data sets. JF - International Journal of Remote Sensing AU - James, ME AU - Kalluri, SNV AD - Global Change Data Cent., Code 902.3, NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 3347 EP - 3363 VL - 15 IS - 17 SN - 0143-1161, 0143-1161 KW - Ecology Abstracts KW - mapping KW - resolution KW - satellites KW - remote sensing KW - D 04100:Terrestrial ecosystems - general KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16598460?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=The+Pathfinder+AVHRR+land+data+set%3A+An+improved+coarse+resolution+data+set+for+terrestrial+monitoring&rft.au=James%2C+ME%3BKalluri%2C+SNV&rft.aulast=James&rft.aufirst=ME&rft.date=1994-01-01&rft.volume=15&rft.issue=17&rft.spage=3347&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&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 - satellites; remote sensing; resolution; mapping ER - TY - JOUR T1 - Determining the susceptibility of cloud albedo to changes in droplet concentration with the Advanced Very High Resolution Radiometer AN - 16593260; 3654428 AB - Combustion processes that produce greenhouse gases also increase cloud condensation nuclei (CCN) concentrations, which in turn increase cloud droplet concentrations and thereby cloud albedo. A calculation of cloud susceptibility, defined in this work as the increase in albedo resulting from the addition of one cloud droplet per cubic centimeter (as cloud liquid water content remains constant), is made through the satellite remote sensing of cloud droplet radius and optical thickness. The remote technique uses spectral channels of the Advanced Very High Resolution Radiometer (AVHRR) instrument on board NOAA polar-orbiting satellites. Radiative transfer calculations of reflectance and effective surface and cloud emissivities are made for applicable sun and satellite viewing angles, including azimuth, at various radii and optical thicknesses for each AVHRR channel. Emission in channel 3 (at 3.75 mu m) is removed to give the reflected solar component. These calculations are used to infer the radius and optical thickness that best match the satellite measurements. An approximation for the effect of the atmosphere on the signal received by the AVHRR is included in the analysis. Marine stratus clouds, as well as being important modifiers of climate, are cleaner than continental clouds and so likely to be of higher susceptibility. Analysis of several stratus scenes, including some containing ship tracks, supports this expectation. The retrieved range of susceptibilities for all marine stratus clouds studied varied by about two orders of magnitude. This variation implies that climate studies that include possible marine stratus albedo modification from anthropogenic CCN are incomplete without accounting for existing susceptibilities. JF - Journal of Applied Meteorology AU - Platnick, S AU - Twomey, S AD - NASA Goddard Space Flight Cent., Code 913, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 334 EP - 347 VL - 33 IS - 3 SN - 0894-8763, 0894-8763 KW - cloud condensation nuclei KW - combustion processes KW - greenhouse effect KW - ocean-atmosphere system KW - radiative transfer KW - radiometers KW - satellite sensing KW - satellite technology KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - albedo KW - carbon dioxide KW - clouds KW - condensation KW - cloud physics KW - marine environment KW - aerosols KW - cloud cover KW - remote sensing KW - Q2 09243:Structure, mechanics and thermodynamics KW - Q2 09393:Remote geosensing KW - SW 5040:Data acquisition KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16593260?accountid=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+Applied+Meteorology&rft.atitle=Determining+the+susceptibility+of+cloud+albedo+to+changes+in+droplet+concentration+with+the+Advanced+Very+High+Resolution+Radiometer&rft.au=Platnick%2C+S%3BTwomey%2C+S&rft.aulast=Platnick&rft.aufirst=S&rft.date=1994-01-01&rft.volume=33&rft.issue=3&rft.spage=334&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&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 - clouds; albedo; condensation; carbon dioxide; cloud physics; radiometers; marine environment; aerosols; ocean-atmosphere system; greenhouse effect; satellite sensing; radiative transfer; cloud cover; remote sensing; satellite technology ER - TY - CONF T1 - On the relationship between FAPAR and NDVI AN - 16591444; 3653157 AB - The influence of pixel heterogeneity, background, atmospheric and bidirectional effects on the relationship between fraction of photosynthetically active radiation absorbed by the photosynthesizing tissue in a canopy (FAPAR) and normalized difference vegetation index (NDVI) is investigated using a three-dimensional model of radiation transfer. Top of the canopy (TOC) NDVI and FAPAR increase with ground cover and plant leaf area. Their functional response to leaf orientation, solar zenith angle and atmospheric optical depth is similar. For instance, planophile canopies (mostly horizontal leaves) have a higher FAPAR and TOC NDVI than erectophile canopies (mostly erect leaves). However, FAPAR and TOC NDVI respond differently to other parameters such as soil reflectance and leaf optical properties. For example, an increase in soil reflectance increases FAPAR but decreases TOC NDVI. Atmospheric and bidirectional effects confound the interpretation of top of the atmosphere (TOA) NDVI. The transmissivity of NDVI, defined as the ratio TOA/TOC NDVI, decreases with increasing atmospheric turbidity and solar zenith angle. Sensing about the nadir directions under clear sky conditions and moderate solar incidence angles can result in transmissivities as high as 0.8. There are sufficient causal grounds for relating FAPAR to NDVI. The relationship is independent of pixel heterogeneity, parameterized here with ground cover, plant leaf area, and variations in leaf orientation and optical properties. On the other hand, the relationship is sensitive to background, atmospheric, and bidirectional effects. A simple linear model relating FAPAR to TOC NDVI is proposed, and its validity is discussed. JF - Remote Sensing of Environment AU - Myneni, R B AU - Williams, D L Y1 - 1994 PY - 1994 DA - 1994 SP - 200 EP - 211 VL - 49 IS - 3 KW - Ecology Abstracts KW - cover KW - vegetation patterns KW - canopies KW - remote sensing KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16591444?accountid=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=Remote+Sensing+of+Environment&rft.atitle=On+the+relationship+between+FAPAR+and+NDVI&rft.au=Myneni%2C+R+B%3BWilliams%2C+D+L&rft.aulast=Myneni&rft.aufirst=R&rft.date=1994-01-01&rft.volume=49&rft.issue=3&rft.spage=200&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - Satellite analysis of the severe 1987 forest fires in northern China and southeastern Siberia AN - 16583239; 3678490 AB - Meteorological conditions, extremely conducive to fire development and spread in the spring of 1987, resulted in forest fires burning over extremely large areas in the boreal forest zone in northeastern China and the southeastern region of Siberia. The great China fire, one of the largest and most destructive forest fires in recent history, occurred during this period in the Heilongjiang Province of China. Satellite imagery is used to examine the development and areal distribution of 1987 forest fires in this region. Overall trace gas emissions to the atmosphere from these fires are determined using a satellite-derived estimate of area burned in combination with fuel consumption figures and carbon emission ratios for boreal forest fires. JF - Journal of Geophysical Research. D. Atmospheres AU - Cahoon, Jr AU - Stocks, B J AU - Levine, J S AU - Cofer, WR III AU - Pierson, J M AD - Atmos. Sci. Div., NASA Langley Res. Cent., Hampton, VA, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 18627 EP - 18638 VL - 99 IS - 9 SN - 0148-0227, 0148-0227 KW - Siberia KW - Pollution Abstracts KW - fires KW - forests KW - atmosphere KW - meteorology KW - China, People's Rep., Heilongjiang Prov. KW - air pollution KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16583239?accountid=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=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=Satellite+analysis+of+the+severe+1987+forest+fires+in+northern+China+and+southeastern+Siberia&rft.au=Cahoon%2C+Jr%3BStocks%2C+B+J%3BLevine%2C+J+S%3BCofer%2C+WR+III%3BPierson%2C+J+M&rft.aulast=Cahoon&rft.aufirst=Jr&rft.date=1994-01-01&rft.volume=99&rft.issue=9&rft.spage=18627&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&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 - China, People's Rep., Heilongjiang Prov.; forests; fires; meteorology; atmosphere; air pollution ER - TY - JOUR T1 - Light transmission and reflection in perennially ice-covered Lake Hoare, Antarctica AN - 16577868; 3663847 AB - We have investigated the transmission and albedo of the perennial ice cover on Lake Hoare, Antarctica. Our database consists of year-round measurements of the photosynthetically active radiation (400-700 nm) under the ice, measurements of the spatial variation of the under-ice light in midsummer, and spectrally resolved measurements from 400 to 700 nm of the albedo and transmission of the ice cover in early (November) and in midsummer (January). Our results show that the transmission decreases in the first part of summer, dropping by a factor of similar to 4 from November to January. We suggest that this is due to heating in the upper layers of the ice cover and the formation of Tyndall figures. Later in the summer when a significant liquid water fraction occurs within the ice cover, the transmission increases. In the fall when the ice cover freezes solid the transmission drops markedly. The spectrally resolved measurements from 400 to 700 nm show that similar to 2-5% of the incident light in this spectral region penetrates the 3.5-m thick ice cover. We have analyzed the spectral data using a two-stream scattering solution to the radiative transfer equation with three vertical layers in the ice cover. A surficial glaze of scattering ice 1 cm thick overlies a layer of sandy, bubbly ice about a meter thick, and below this is a thick layer of sand-free ice with bubbles. We find that the ice cover is virtually opaque at wavelengths longer than 800 nm. The net transmission of solar energy is similar to 2%. Significant changes in the thickness of the ice cover have been reported at Lake Hoare. These are due primarily to changes in the thickness of the bottom layer only. Because this layer is relatively clear, the effect on the transmission through the ice cover from these changes in less than would be predicted assuming a homogeneous ice cover. JF - Journal of Geophysical Research. E. Planets AU - McKay, C P AU - Clow, G D AU - Andersen, D T AU - Wharton, RA Jr AD - Space Sci. Div., NASA Ames Res. Cent., Moffett Field, CA, USA Y1 - 1994 PY - 1994 DA - 1994 SN - 0148-0227, 0148-0227 KW - Antarctica, Hoare L. KW - Antarctica, Victoria Land, Hoare L. KW - light transmission KW - productivity KW - transmissivity KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - albedo KW - photosynthesis KW - lakes KW - ice cover KW - Freshwater KW - transparency KW - optical properties KW - reflectance KW - Q2 09223:Optical properties KW - SW 0850:Lakes KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16577868?accountid=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+Geophysical+Research.+E.+Planets&rft.atitle=Light+transmission+and+reflection+in+perennially+ice-covered+Lake+Hoare%2C+Antarctica&rft.au=McKay%2C+C+P%3BClow%2C+G+D%3BAndersen%2C+D+T%3BWharton%2C+RA+Jr&rft.aulast=McKay&rft.aufirst=C&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+E.+Planets&rft.issn=01480227&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 - albedo; transparency; photosynthesis; optical properties; light transmission; lakes; ice cover; reflectance; transmissivity; productivity; Freshwater ER - TY - JOUR T1 - Relations between evaporation coefficients and vegetation indices studied by model simulations AN - 16575628; 3660095 AB - Calculations using a heat balance and a radiative transfer model have been done to study relations among evaporation coefficients and vegetation indices. The evaporation coefficients are the crop coefficient (defined as the ratio of total evaporation and reference crop evaporation) and the transpiration coefficient (defined as the ratio of unstressed transpiration and reference crop evaporation), while the vegetation indices considered in this study are the normalized difference, soil adjusted vegetation index, and transformed soil adjusted vegetation index. The reference crop evaporation has been calculated using the Priestley-Taylor equation. The observed variations of crop (wheat) height, leaf area index, and weather conditions for 30 days at Phoenix (Arizona), together with the reflectances of different types of soil in wet and dry states, are used in the simulation. The total evaporation calculated from the model compared well with lysimeter observations. Variations in soil evaporation can introduce considerable scatter in the relation between the crop coefficient and leaf area index, while this scatter is much less for the relation between transpiration coefficient and leaf area index. The simulation results for 30 days of crop and weather data and reflectances of 19 soil types in wet and dry conditions gave significant linear correlations between the transpiration coefficient and the vegetation indices, the explained variance (r super(2)) being highest for the soil adjusted vegetation index (r super(2) = 0.88) and lowest for the normalized difference (r super(2) = 0.81). A clump vegetation model is used to address the effect of spatial heterogeneity on the relationship between the transpiration coefficient and soil adjusted vegetation index. These simulated relationships between transpiration coefficient and vegetation indices for wheat are discussed in the context of the relationships derived from observations for several crops and grasses. The present analysis provides a theoretical basis for estimating transpiration from remotely sensed data. JF - Remote Sensing of Environment AU - Choudhury, B J AU - Ahmed, N U AU - Idso, S B AU - Reginato, R J AU - Daughtry, CST AD - NASA/GSFC, Hydrol. Sci. Br., Code 974, Greenbelt, MD 20771, USA Y1 - 1994 PY - 1994 DA - 1994 SP - 1 EP - 17 VL - 50 IS - 1 SN - 0034-4257, 0034-4257 KW - models KW - model studies KW - Water Resources Abstracts; Ecology Abstracts KW - heat balance KW - vegetation KW - evaporation KW - transpiration KW - crops KW - reflectance KW - remote sensing KW - SW 0830:Evaporation and transpiration KW - D 04615:Ecology studies - general KW - D 04003:Modeling, mathematics, computer applications KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16575628?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Relations+between+evaporation+coefficients+and+vegetation+indices+studied+by+model+simulations&rft.au=Choudhury%2C+B+J%3BAhmed%2C+N+U%3BIdso%2C+S+B%3BReginato%2C+R+J%3BDaughtry%2C+CST&rft.aulast=Choudhury&rft.aufirst=B&rft.date=1994-01-01&rft.volume=50&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - vegetation; evaporation; heat balance; remote sensing; model studies; crops; transpiration; reflectance; models ER - TY - JOUR T1 - A technique for the extraction of O-18 from microliter quantities of water AN - 1645570679; 2015-004742 JF - Geological Survey Circular AU - Socki, R A AU - Romanek, C S AU - Gibson, E K, Jr Y1 - 1994 PY - 1994 DA - 1994 SP - 298 PB - U. S. Geological Survey, Reston, VA SN - 0364-6017, 0364-6017 KW - water KW - meteorites KW - sample preparation KW - oxygen KW - isotopes KW - O-18 KW - techniques KW - applications KW - geochemistry KW - stable isotopes KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645570679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Survey+Circular&rft.atitle=A+technique+for+the+extraction+of+O-18+from+microliter+quantities+of+water&rft.au=Socki%2C+R+A%3BRomanek%2C+C+S%3BGibson%2C+E+K%2C+Jr&rft.aulast=Socki&rft.aufirst=R&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=298&rft.isbn=&rft.btitle=&rft.title=Geological+Survey+Circular&rft.issn=03646017&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eighth international conference on Geochronology, cosmochronology, and isotope geology N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 4 N1 - PubXState - VA N1 - Last updated - 2015-01-15 N1 - CODEN - XICIA5 N1 - SubjectsTermNotLitGenreText - applications; geochemistry; isotopes; meteorites; O-18; oxygen; sample preparation; stable isotopes; techniques; water ER - TY - JOUR T1 - Isotopic content of CO (sub 2) extracted from carbonates during laser pyrolysis AN - 1645570522; 2015-004687 JF - Geological Survey Circular AU - Romanek, C S AU - Socki, R A AU - Gibson, E K, Jr Y1 - 1994 PY - 1994 DA - 1994 SP - 271 PB - U. S. Geological Survey, Reston, VA SN - 0364-6017, 0364-6017 KW - dolomite KW - oxygen KW - pyrolysis KW - isotopes KW - isotope ratios KW - O-18/O-16 KW - recrystallization KW - carbonates KW - stable isotopes KW - carbon dioxide KW - calcite KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645570522?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Survey+Circular&rft.atitle=Isotopic+content+of+CO+%28sub+2%29+extracted+from+carbonates+during+laser+pyrolysis&rft.au=Romanek%2C+C+S%3BSocki%2C+R+A%3BGibson%2C+E+K%2C+Jr&rft.aulast=Romanek&rft.aufirst=C&rft.date=1994-01-01&rft.volume=&rft.issue=&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Geological+Survey+Circular&rft.issn=03646017&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eighth international conference on Geochronology, cosmochronology, and isotope geology N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - PubXState - VA N1 - Last updated - 2015-01-15 N1 - CODEN - XICIA5 N1 - SubjectsTermNotLitGenreText - calcite; carbon dioxide; carbonates; dolomite; isotope ratios; isotopes; O-18/O-16; oxygen; pyrolysis; recrystallization; stable isotopes ER - TY - JOUR T1 - Aspects of Modeling the Tropospheric Hydroxyl Radical Concentration AN - 1468384268; 18824592 AB - The global abundance of the hydroxyl radical, OH, is a principal determinant of the amount of acid deposition and the lifetime of literally hundreds of atmospheric trace gases. Local ("in situ" or point) measurements of OH have been made in a number of environments, and technical challenges in this area are being met over time. Typical concentrations near the surface range from (0.5 to 10) 10 super(6) molecules cm super(-3). These measurements test photochemical theory. Discrepancies between models and measurements are sometimes larger than the apparent uncertainty in either one. There is no way to measure tropospheric OH directly on a global scale. Instead, measurement of species that react with OH are used with models to derive an estimate for the global burden. Through this route it appears that global OH has not significantly increased or decreased over the past decade. The complexities of OH interaction with O sub(3), carbon monoxide, methane, nitrogen oxides, and nonmethane hydrocarbons and uncertainties in models make it difficult to interpret or predict global OH behavior. JF - Israel Journal of Chemistry AU - Thompson, Anne M AD - NASA/Goddard Space Flight Center, Laboratory for Atmospheres, Greenbelt, Maryland 20771, USA. Y1 - 1994 PY - 1994 DA - 1994 SP - 277 EP - 288 PB - Laser Pages Publishing Ltd., PO Box 35409 Jerusalem 91352 Israel VL - 34 IS - 3-4 SN - 0021-2148, 0021-2148 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Methane KW - Hydroxyl in troposphere KW - Atmospheric pollution models KW - Abundance KW - Troposphere KW - Nitrogen oxides KW - Hydroxyl radicals KW - Carbon monoxide KW - Photochemicals KW - Gases KW - Atmospheric chemistry KW - Acid deposition KW - Ozone KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1468384268?accountid=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=Israel+Journal+of+Chemistry&rft.atitle=Aspects+of+Modeling+the+Tropospheric+Hydroxyl+Radical+Concentration&rft.au=Thompson%2C+Anne+M&rft.aulast=Thompson&rft.aufirst=Anne&rft.date=1994-01-01&rft.volume=34&rft.issue=3-4&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Israel+Journal+of+Chemistry&rft.issn=00212148&rft_id=info:doi/10.1002%2Fijch.199400032 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-12-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Hydroxyl in troposphere; Atmospheric pollution models; Ozone; Carbon monoxide; Methane; Gases; Photochemicals; Abundance; Atmospheric chemistry; Troposphere; Nitrogen oxides; Acid deposition; Hydroxyl radicals DO - http://dx.doi.org/10.1002/ijch.199400032 ER - TY - JOUR T1 - Formation of phyllosilicates by hydrothermal alteration of impact melts AN - 1400615679; 2013-052331 JF - Program and Abstracts - Annual Clay Minerals Conference AU - Golden, D C AU - Ming, D W AU - Morris, R V AU - Anonymous Y1 - 1994 PY - 1994 DA - 1994 SP - 108 PB - Clay Minerals Society, Aurora, CO VL - 31 KW - silicates KW - clay KW - K-feldspar KW - X-ray diffraction data KW - Quebec KW - Europe KW - metasomatism KW - melting KW - alkali feldspar KW - hematite KW - Central Europe KW - sediments KW - oxides KW - hydrothermal alteration KW - framework silicates KW - fabric KW - clastic sediments KW - Bavaria Germany KW - grain size KW - smectite KW - impacts KW - TEM data KW - clay minerals KW - Clearwater Lake KW - Canada KW - Manicouagan Crater KW - Ries Crater KW - sheet silicates KW - Germany KW - Eastern Canada KW - feldspar group KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1400615679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+-+Annual+Clay+Minerals+Conference&rft.atitle=Formation+of+phyllosilicates+by+hydrothermal+alteration+of+impact+melts&rft.au=Golden%2C+D+C%3BMing%2C+D+W%3BMorris%2C+R+V%3BAnonymous&rft.aulast=Golden&rft.aufirst=D&rft.date=1994-01-01&rft.volume=31&rft.issue=&rft.spage=108&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+Annual+Clay+Minerals+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Clay Minerals Society, 31st annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-07-18 N1 - CODEN - CMCPCT N1 - SubjectsTermNotLitGenreText - alkali feldspar; Bavaria Germany; Canada; Central Europe; clastic sediments; clay; clay minerals; Clearwater Lake; Eastern Canada; Europe; fabric; feldspar group; framework silicates; Germany; grain size; hematite; hydrothermal alteration; impacts; K-feldspar; Manicouagan Crater; melting; metasomatism; oxides; Quebec; Ries Crater; sediments; sheet silicates; silicates; smectite; TEM data; X-ray diffraction data ER - TY - JOUR T1 - An experimental model of the solar-stimulated fluorescence of chromophoric dissolved organic matter AN - 13669520; S199851648 AB - A procedure for using chromophoric dissolved organic matter (CDOM) 3-D fluorescence spectra to calculate CDOM solar-stimulated fluorescence as a function of depth in the water column, is described. By modelling the penetration of light in the water column, the contribution of the depth-integrated upwelled fluorescence to the irradiance reflectance spectrum, was also estimated. The upwelled fluorescence was compared with irradiance reflectance calculated from a semianalytical model which showed that the fluorescence contribution to reflectance in the blue-green to green region was as high as 70 per cent for blackwater but was rapidly reduced by the introduction of scattering particles. The relative contributions of fluorescence and water Raman scattering to the filling of the Fraunhofer line at 486 nm, showed that filling by fluorescence near the surface was twice that of Raman scattering for waters containing moderate amounts of CDOM. JF - Limnology and Oceanography AU - Vodacek, A AU - Green, SA AU - Blough, N V AD - NASA GSFC/Wallops Flight Facility, Wallops Island, Va. Y1 - 1994 PY - 1994 DA - 1994 SP - 1 EP - 11 VL - 39 IS - 1 SN - 0024-3590, 0024-3590 KW - Modelling (-general-) KW - Reduction KW - Aqualine Abstracts KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13669520?accountid=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=Limnology+and+Oceanography&rft.atitle=An+experimental+model+of+the+solar-stimulated+fluorescence+of+chromophoric+dissolved+organic+matter&rft.au=Vodacek%2C+A%3BGreen%2C+SA%3BBlough%2C+N+V&rft.aulast=Vodacek&rft.aufirst=A&rft.date=1994-01-01&rft.volume=39&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Limnology+and+Oceanography&rft.issn=00243590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Global sites to document long term ecological changes using space shuttle earth observations photography database: Omo river delta, lake Turkana (Africa) as an example of the database application AN - 13657480; 199501171 AB - Examples are given of the potential application of the Space Shuttle Earth Observations database for monitoring and modelling. Imagery of the Omo river delta showed it had increased by 400 per cent since 1965 and was continuing to grow. Parts were being farmed. The method was valuable for studying tropical areas where detailed information was often lacking. JF - Geocarto International AU - Lulla, K AU - Allison, R AD - NASA/Johnson Space Center, Houston, Tex., U.S.A. Y1 - 1994 PY - 1994 DA - 1994 SP - 67 EP - 68 VL - 9 IS - 3 SN - 1010-6049, 1010-6049 KW - Modelling (-general-) KW - Aqualine Abstracts KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13657480?accountid=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=Geocarto+International&rft.atitle=Global+sites+to+document+long+term+ecological+changes+using+space+shuttle+earth+observations+photography+database%3A+Omo+river+delta%2C+lake+Turkana+%28Africa%29+as+an+example+of+the+database+application&rft.au=Lulla%2C+K%3BAllison%2C+R&rft.aulast=Lulla&rft.aufirst=K&rft.date=1994-01-01&rft.volume=9&rft.issue=3&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Geocarto+International&rft.issn=10106049&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Application. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Stable water isotope behavior during the last glacial maximum; a general circulation model analysis AN - 1316372979; 2013-024535 AB - Global water isotope geochemistry during the last glacial maximum (LGM) is simulated with an 8 degrees X10 degrees atmospheric general circulation model (GCM). The simulation results suggest that the "spatial" delta (super 18) O/temperature relationships observed for the present-day and LGM climates are very similar. Furthermore, the temporal delta (super 18) O/temperature relationship is similar to the present-day spatial relationship in regions for which the LGM/present-day temperature change is significant. This helps justify the standard practice of applying the latter to the interpretation of paleodata, despite the possible influence of other factors, such as changes in the evaporative sources of precipitation or in the seasonally of precipitation. The model suggests, for example, that temperature shifts inferred from ice core data may differ from the true shifts by only about 30%. JF - Journal of Geophysical Research AU - Jouzel, Jean AU - Koster, Randal D AU - Suozzo, Robert J AU - Russell, Gary L Y1 - 1994 PY - 1994 DA - 1994 SP - 25791 EP - 25801 PB - American Geophysical Union, Washington, DC VL - 99 IS - D12 SN - 0148-0227, 0148-0227 KW - general circulation models KW - ice cores KW - last glacial maximum KW - Quaternary KW - oxygen KW - isotopes KW - isotope ratios KW - global KW - paleocirculation KW - O-18/O-16 KW - paleoclimatology KW - hydrochemistry KW - stable isotopes KW - Cenozoic KW - paleotemperature KW - geochemistry KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316372979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stable+water+isotope+behavior+during+the+last+glacial+maximum%3B+a+general+circulation+model+analysis&rft.au=Jouzel%2C+Jean%3BKoster%2C+Randal+D%3BSuozzo%2C+Robert+J%3BRussell%2C+Gary+L&rft.aulast=Jouzel&rft.aufirst=Jean&rft.date=1994-01-01&rft.volume=99&rft.issue=D12&rft.spage=25791&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JD01819 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 55 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2013-03-14 N1 - SubjectsTermNotLitGenreText - Cenozoic; general circulation models; geochemistry; global; hydrochemistry; ice cores; isotope ratios; isotopes; last glacial maximum; O-18/O-16; oxygen; paleocirculation; paleoclimatology; paleotemperature; Quaternary; stable isotopes DO - http://dx.doi.org/10.1029/94JD01819 ER - TY - JOUR T1 - Physical and optical properties of the Pinatubo volcanic aerosol; aircraft observations with impactors and a Sun-tracking photometer AN - 1039338420; 2012-081533 AB - As determined in situ by impactor samplers flown on an ER-2 at 16.5- to 20.7-km pressure altitude and on a DC-8 at 9.5- to 12.6-km pressure altitudes, the 1991 Pinatubo volcanic eruption increased the particle surface area of stratospheric aerosols up to 50-fold and the particle volume up to 2 orders of magnitude. Particle composition was typical of a sulfuric acid-water mixture at ER-2 altitudes. Ash particles coated with sulfuric acid comprised a significant fraction of aerosol at DC-8 altitudes. Mie-computed light extinction increased up to 20-fold at midvisible and >100-fold at near-IR wavelengths. The optical thickness measured through the aerosol layer by an autotracking Sun photometer aboard a DC-8 aircraft at 10.7- to 11.3-km pressure altitudes shows a spectral shape that is similar to the Mie-calculated spectral extinction at ER-2 altitudes. Surface area distributions calculated by inversion of spectral optical depth measurements show characteristics that are similar to the mean surface area distribution resulting from 35 in situ measurements. JF - Journal of Geophysical Research AU - Pueschel, R F AU - Russell, P B AU - Allen, D A AU - Ferry, G V AU - Snetsinger, K G AU - Livingston, J M AU - Verma, S Y1 - 1994 PY - 1994 DA - 1994 SP - 12915 EP - 12922 PB - American Geophysical Union, Washington, DC VL - 99 IS - D6 SN - 0148-0227, 0148-0227 KW - sulfuric acid KW - Luzon KW - Far East KW - atmosphere KW - physical properties KW - optical properties KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - eruptions KW - volcanoes KW - aerosols KW - chemical composition KW - Asia KW - inorganic acids KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039338420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Physical+and+optical+properties+of+the+Pinatubo+volcanic+aerosol%3B+aircraft+observations+with+impactors+and+a+Sun-tracking+photometer&rft.au=Pueschel%2C+R+F%3BRussell%2C+P+B%3BAllen%2C+D+A%3BFerry%2C+G+V%3BSnetsinger%2C+K+G%3BLivingston%2C+J+M%3BVerma%2C+S&rft.aulast=Pueschel&rft.aufirst=R&rft.date=1994-01-01&rft.volume=99&rft.issue=D6&rft.spage=12915&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JD00621 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-09-14 N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; chemical composition; eruptions; Far East; inorganic acids; Luzon; Mount Pinatubo; optical properties; Philippine Islands; physical properties; sulfuric acid; volcanism; volcanoes DO - http://dx.doi.org/10.1029/94JD00621 ER - TY - JOUR T1 - Size distribution and scattering phase function of aerosol particles retrieved from sky brightness measurements AN - 1039338398; 2012-081530 AB - Ground-based measurements of the solar transmission and sky radiance in a horizontal plane through the Sun are taken in several geographical regions and aerosol types: dust in a desert transition zone in Israel, sulfate particles in Eastern and Western Europe, tropical aerosol in Brazil, and mixed continental/maritime aerosol in California. Stratospheric aerosol was introduced after the eruption of Mount Pinatubo in June 1991. Therefore measurements taken before the eruption are used to analyze the properties of tropospheric aerosol; measurements from 1992 are also used to detect the particle size and concentration of stratospheric aerosol. The measurements are used to retrieve the size distribution and the scattering phase function at large scattering angles of the undisturbed aerosol particles. The retrieved properties represent an average on the entire atmospheric column. A comparison between the retrieved phase function for a scattering angle of 120 degrees , with phase function predicted from the retrieved size distribution, is used to test the assumption of particle homogeneity and sphericity in radiative transfer models (Mie theory). The effect was found to be small (20%+ or -15%). For the stratospheric aerosol (sulfates), as expected, the phase function was very well predicted using the Mie theory. A model with a power law size distribution, based on the spectral dependence of the optical thickness, a, cannot estimate accurately the phase function (up to 50% error for lambda =0.87 mu m). Before the Pinatubo eruption the ratio between the volumes of sulfate and coarse particles was very well correlated with alpha . The Pinatubo stratospheric aerosol destroyed this correlation. The aerosol optical properties are compared with analysis of the size, shape, and composition of the individual particles by electron microscopy of in situ samples. The measured volume size distributions before the injection of stratospheric aerosol consistently show two modes, sulfate particles with r (sub m) 0.7 mu m. The "window" in the tropospheric aerosol in this radius range was used to observe a stable stratospheric aerosol in 1992, with r (sub m) approximately 0.5 mu m. A combination of such optical thickness and sky measurements can be used to assess the direct forcing and the climatic impact of aerosol. Systematic inversion for the key aerosol types (sulfates, smoke, dust, and maritime aerosol) of the size distribution and phase function can give the relationship between the aerosol physical and optical properties that can be used to compute the radiative forcing. This forcing can be validated in dedicated field experiments. JF - Journal of Geophysical Research AU - Kaufman, Y J AU - Gitelson, A AU - Karnieli, A AU - Ganor, E AU - Fraser, R S AU - Nakajima, T AU - Mattoo, S AU - Holben, B N Y1 - 1994 PY - 1994 DA - 1994 SP - 10341 EP - 10356 PB - American Geophysical Union, Washington, DC VL - 99 IS - D5 SN - 0148-0227, 0148-0227 KW - Luzon KW - Far East KW - global KW - atmosphere KW - brightness KW - size distribution KW - optical properties KW - Mount Pinatubo KW - transport KW - Philippine Islands KW - atmospheric transport KW - volcanism KW - volcanoes KW - aerosols KW - chemical composition KW - Asia KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039338398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Size+distribution+and+scattering+phase+function+of+aerosol+particles+retrieved+from+sky+brightness+measurements&rft.au=Kaufman%2C+Y+J%3BGitelson%2C+A%3BKarnieli%2C+A%3BGanor%2C+E%3BFraser%2C+R+S%3BNakajima%2C+T%3BMattoo%2C+S%3BHolben%2C+B+N&rft.aulast=Kaufman&rft.aufirst=Y&rft.date=1994-01-01&rft.volume=99&rft.issue=D5&rft.spage=10341&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F94JD00229 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 39 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-09-14 N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; atmospheric transport; brightness; chemical composition; Far East; global; Luzon; Mount Pinatubo; optical properties; Philippine Islands; size distribution; transport; volcanism; volcanoes DO - http://dx.doi.org/10.1029/94JD00229 ER - TY - JOUR T1 - Heterogeneous conversion of N (sub 2) O (sub 5) to HNO (sub 3) in the post-Mount Pinatubo eruption stratosphere AN - 1039338233; 2012-081527 AB - Simultaneous stratospheric volume mixing ratio (VMR) profiles of dinitrogen pentoxide (N (sub 2) O (sub 5) ) and nitric acid (HNO (sub 3) ) at sunrise between 25 degrees N and 15 degrees S latitude and profiles of HNO (sub 3) at sunset between 42 degrees S and 53 degrees S latitude have been derived from 0.01 cm (super -1) resolution infrared solar occultation spectra recorded 9 l 2 months after the massive eruption of the Mount Pinatubo volcano in the Philippine Islands. The measurements were obtained by the atmospheric trace molecule spectroscopy (ATMOS) Fourier transform spectrometer during the ATLAS 1 shuttle mission (March 24 to April 2, 1992). The measured HNO (sub 3) VMRs are higher at all altitudes and latitudes than corresponding values measured by the limb infrared monitor of the stratosphere (LIMS) instrument during the same season in 1979, when the aerosol loading was near background levels. The largest relative increase in the HNO (sub 3) VMR occurred near the equator at 30-km altitude, where the ATMOS/ATLAS 1 values are about a factor of 2 higher than the LIMS measurements. Two-dimensional model calculations show that the increase in HNO (sub 3) and the ATMOS/ATLAS 1 measurement of a steep decrease in the N (sub 2) O (sub 5) VMR below 30 km can be explained by the enhanced conversion of N (sub 2) O (sub 5) to HNO (sub 3) on the surfaces of the Mount Pinatubo sulfate aerosols. Our profile results demonstrate the global impact of the N (sub 2) O (sub 5) +H (sub 2) O-->2HNO (sub 3) heterogeneous reaction in altering the partitioning of stratospheric odd nitrogen after a major volcanic eruption. JF - Journal of Geophysical Research AU - Rinsland, C P AU - Gunson, M R AU - Abrams, M C AU - Lowes, L L AU - Zander, R AU - Mahieu, E AU - Goldman, A AU - Ko, M K W AU - Rodriguez, J M AU - Sze, N D Y1 - 1994 PY - 1994 DA - 1994 SP - 8213 EP - 8219 PB - American Geophysical Union, Washington, DC VL - 99 IS - D4 SN - 0148-0227, 0148-0227 KW - Luzon KW - nitric acid KW - Far East KW - global KW - atmosphere KW - dinitrogen pentoxide KW - stratosphere KW - Mount Pinatubo KW - transport KW - Philippine Islands KW - atmospheric transport KW - volcanism KW - eruptions KW - solar radiation KW - volcanoes KW - chemical composition KW - Asia KW - inorganic acids KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039338233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Heterogeneous+conversion+of+N+%28sub+2%29+O+%28sub+5%29+to+HNO+%28sub+3%29+in+the+post-Mount+Pinatubo+eruption+stratosphere&rft.au=Rinsland%2C+C+P%3BGunson%2C+M+R%3BAbrams%2C+M+C%3BLowes%2C+L+L%3BZander%2C+R%3BMahieu%2C+E%3BGoldman%2C+A%3BKo%2C+M+K+W%3BRodriguez%2C+J+M%3BSze%2C+N+D&rft.aulast=Rinsland&rft.aufirst=C&rft.date=1994-01-01&rft.volume=99&rft.issue=D4&rft.spage=8213&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JD03469 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-09-14 N1 - SubjectsTermNotLitGenreText - Asia; atmosphere; atmospheric transport; chemical composition; dinitrogen pentoxide; eruptions; Far East; global; inorganic acids; Luzon; Mount Pinatubo; nitric acid; Philippine Islands; solar radiation; stratosphere; transport; volcanism; volcanoes DO - http://dx.doi.org/10.1029/93JD03469 ER - TY - JOUR T1 - Aerosol-associated changes in tropical stratospheric ozone following the eruption of Mount Pinatubo AN - 1039338230; 2012-081526 AB - The large amount of sulfuric acid aerosol formed in the stratosphere by conversion of sulfur dioxide emitted by the eruption of Mount Pinatubo (15.14 degrees N, 120.35 degrees E) in the Philippines around June 15, 1991, has had a pronounced effect on lower stratospheric ozone in the tropics. Measurements of stratospheric ozone in the tropics using electrochemical concentration cell (ECC) sondes before and after the eruption and the airborne UV differential absorption lidar (DIAL) system after the eruption are compared with Stratospheric Aerosol and Gas Experiment II (SAGE II) measurements from several years before the eruption and ECC sonde measurements from the year prior to the eruption to determine the resulting changes. Ozone decreases of up to 33% compared with SAGE II climatological values were found to be directly correlated with altitude regions of enhanced aerosol loading in the 16- to 28-km range. A maximum partial-column decrease of 29+ or -9 Dobson units (DU) was found over the 16- to 28-km range in September 1991 along with small increases (to 5.9+ or -2 DU) from 28 to 31.5 km. A large decrease of ozone was also found at 4 degrees to 8 degrees S from May to August 1992, with a maximum decrease of 33+ or -7 DU found above Brazzaville in July. Aerosol data from the visible channel of the advanced very high resolution radiometer (AVHRR) and the visible wavelength of the UV DIAL system were used to examine the relationship between aerosol (surface area) densities and ozone changes. The tropical stratospheric ozone changes we observed in 1991 and 1992 are likely be explained by a combination of dynamical (vertical transport) perturbations, radiative perturbations on ozone photochemistry, and heterogeneous chemistry. JF - Journal of Geophysical Research AU - Grant, William B AU - Browell, Edward V AU - Fishman, Jack AU - Brackett, Vincent G AU - Veiga, Robert E AU - Nganga, Dominique AU - Minga, A AU - Cros, Bernard AU - Butler, Carolyn F AU - Fenn, Marta A AU - Long, Craig S AU - Stowe, Larry L Y1 - 1994 PY - 1994 DA - 1994 SP - 8197 EP - 8211 PB - American Geophysical Union, Washington, DC VL - 99 IS - D4 SN - 0148-0227, 0148-0227 KW - Luzon KW - Far East KW - global KW - atmosphere KW - ozone KW - stratosphere KW - Mount Pinatubo KW - transport KW - Philippine Islands KW - atmospheric transport KW - volcanism KW - eruptions KW - volcanoes KW - aerosols KW - chemical composition KW - Asia KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039338230?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Aerosol-associated+changes+in+tropical+stratospheric+ozone+following+the+eruption+of+Mount+Pinatubo&rft.au=Grant%2C+William+B%3BBrowell%2C+Edward+V%3BFishman%2C+Jack%3BBrackett%2C+Vincent+G%3BVeiga%2C+Robert+E%3BNganga%2C+Dominique%3BMinga%2C+A%3BCros%2C+Bernard%3BButler%2C+Carolyn+F%3BFenn%2C+Marta+A%3BLong%2C+Craig+S%3BStowe%2C+Larry+L&rft.aulast=Grant&rft.aufirst=William&rft.date=1994-01-01&rft.volume=99&rft.issue=D4&rft.spage=8197&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JD03314 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-09-14 N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; atmospheric transport; chemical composition; eruptions; Far East; global; Luzon; Mount Pinatubo; ozone; Philippine Islands; stratosphere; transport; volcanism; volcanoes DO - http://dx.doi.org/10.1029/93JD03314 ER - TY - JOUR T1 - Role of the Hudson Bay Lowland as a source of atmospheric methane AN - 1037239661; 2012-078592 AB - Based on point measurements of methane flux from wetlands in the boreal and subarctic regions, northern wetlands are a major source of atmospheric methane. However, measurements have not been carried out in large continuous peatlands such as the the Hudson Bay Lowland (HBL) (320,000 km (super 2) ) and the Western Siberian lowland (540,000 km (super 2) ), which together account for over 30% of-the wetlands north of 40 degrees N. To determine the role the Hudson Bay Lowland as a source of atmospheric methane, fluxes were measured by enclosures throughout the 1990 snow-free period in all the major wetland types and also by an aircraft in July. Two detailed survey areas were investigated: one ( nearly equal 900 km (super 2) ) was in the high subarctic region of the northern lowland and the second area ( nearly equal 4,800 km (super 2) ) straddled the Low Subarctic and High Boreal regions of the southern lowland. The fluxes were integrated over the study period to produce annual methane emissions for each wetland type. The fluxes were then weighted by the area of 16 different habitats for the southern area and 5 habitats for the northern area, as determined from Landsat thematic mapper to yield an annual habitat-weighted emission. On a per unit area basis, 1.31+ or -0.11 and 2.79+ or -0.39 g CH (sub 4) m (super -2) yr (super -1) were emitted from the southern and northern survey areas, respectively. The extrapolated enclosure estimates for a 3-week period in July were compared to within 10% of the flux derived by airborne eddy correlation measurements made during the same period. The aircraft mean flux of 10+ or -9 mg CH (sub 4) m (super -2) d (super -1) was not statistically different from the extrapolated mean flux of 20+ or -16 mg CH (sub 4) m (super -2) d (super -1) . The annual habitat-weighted emission for the entire HBL using six wetland classes is estimated as 0.538+ or -0.187 Tg CH (sub 4) yr (super -1) (range of extreme cases is 0.057 to 2.112 Tg CH (sub 4) yr (super -1) ). This value is much lower than expected, based on previous emission estimates from northern wetlands. JF - Journal of Geophysical Research AU - Roulet, Nigel T AU - Jano, A AU - Kelly, Carol A AU - Klinger, Lee F AU - Moore, T R AU - Protz, R AU - Ritter, J A AU - Rouse, W R Y1 - 1994 PY - 1994 DA - 1994 SP - 1439 EP - 1454 PB - American Geophysical Union, Washington, DC VL - 99 IS - D1 SN - 0148-0227, 0148-0227 KW - peatlands KW - terrestrial environment KW - methane KW - aliphatic hydrocarbons KW - atmosphere KW - alkanes KW - vegetation KW - subarctic regions KW - Hudson Bay Lowlands KW - boreal environment KW - organic compounds KW - mires KW - Canada KW - wetlands KW - Nunavut KW - hydrocarbons KW - ecology KW - chemical composition KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037239661?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Role+of+the+Hudson+Bay+Lowland+as+a+source+of+atmospheric+methane&rft.au=Roulet%2C+Nigel+T%3BJano%2C+A%3BKelly%2C+Carol+A%3BKlinger%2C+Lee+F%3BMoore%2C+T+R%3BProtz%2C+R%3BRitter%2C+J+A%3BRouse%2C+W+R&rft.aulast=Roulet&rft.aufirst=Nigel&rft.date=1994-01-01&rft.volume=99&rft.issue=D1&rft.spage=1439&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JD00261 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-08-31 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; boreal environment; Canada; chemical composition; ecology; Hudson Bay Lowlands; hydrocarbons; methane; mires; Nunavut; organic compounds; peatlands; subarctic regions; terrestrial environment; vegetation; wetlands DO - http://dx.doi.org/10.1029/93JD00261 ER - TY - JOUR T1 - Allogeneic bone marrow transplantation combined with multiple anti-HIV-1 treatment in a case of AIDS. AN - 76264080; 8136753 AB - A 25-year-old woman with AIDS was submitted to HLA-identical allogeneic BMT after cytoablation with busulphan and cyclophosphamide and combined anti-HIV-1 therapy with zidovudine, IFN-alpha 2 and anti-HIV-1-specific T cell clones. Marrow engraftment occurred after 18 days and tests for HIV-1 were negative after 30 days but the hematologic reconstitution of the patient was poor. A second BM infusion from the same donor was ineffective and treatment with GM-CSF only induced a transient increase of the blood cell count, suggesting iatrogenic damage to the BM microenvironment. The development of ARDS led to the death of the patient 10 months after transplantation. Post-mortem investigation did not reveal any active infections and PCR on autopsy tissues was negative for HIV-1. JF - Bone marrow transplantation AU - Contu, L AU - La Nasa, G AU - Arras, M AU - Pizzati, A AU - Vacca, A AU - Carcassi, C AU - Ledda, A AU - Boero, R AU - Orrù, S AU - Pintus, A AD - Istituto di Clinica Medica, Università di Cagliari, Italy. Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 669 EP - 671 VL - 12 IS - 6 SN - 0268-3369, 0268-3369 KW - Antilymphocyte Serum KW - 0 KW - Interferon-alpha KW - Recombinant Proteins KW - interferon alfa-2b KW - 43K1W2T1M6 KW - Zidovudine KW - 4B9XT59T7S KW - Granulocyte-Macrophage Colony-Stimulating Factor KW - 83869-56-1 KW - Cyclophosphamide KW - 8N3DW7272P KW - Busulfan KW - G1LN9045DK KW - Index Medicus KW - AIDS/HIV KW - Cyclophosphamide -- administration & dosage KW - Graft vs Host Disease -- immunology KW - Interferon-alpha -- administration & dosage KW - Combined Modality Therapy KW - Humans KW - Zidovudine -- administration & dosage KW - Transplantation, Homologous KW - Respiratory Distress Syndrome, Adult -- etiology KW - Drug Therapy, Combination KW - Granulocyte-Macrophage Colony-Stimulating Factor -- administration & dosage KW - Busulfan -- administration & dosage KW - Adult KW - Antilymphocyte Serum -- administration & dosage KW - Female KW - Acquired Immunodeficiency Syndrome -- surgery KW - Bone Marrow Transplantation -- methods KW - Acquired Immunodeficiency Syndrome -- therapy KW - Bone Marrow Transplantation -- immunology KW - HIV-1 -- isolation & purification KW - Bone Marrow Transplantation -- adverse effects KW - Acquired Immunodeficiency Syndrome -- immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76264080?accountid=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=Bone+marrow+transplantation&rft.atitle=Allogeneic+bone+marrow+transplantation+combined+with+multiple+anti-HIV-1+treatment+in+a+case+of+AIDS.&rft.au=Contu%2C+L%3BLa+Nasa%2C+G%3BArras%2C+M%3BPizzati%2C+A%3BVacca%2C+A%3BCarcassi%2C+C%3BLedda%2C+A%3BBoero%2C+R%3BOrr%C3%B9%2C+S%3BPintus%2C+A&rft.aulast=Contu&rft.aufirst=L&rft.date=1993-12-01&rft.volume=12&rft.issue=6&rft.spage=669&rft.isbn=&rft.btitle=&rft.title=Bone+marrow+transplantation&rft.issn=02683369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1994-04-25 N1 - Date created - 1994-04-25 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The condensation and vaporization behavior of ices containing SO (sub 2) , H (sub 2) S, and CO (sub 2) ; implications for Io AN - 51667093; 2005-071330 JF - Icarus (Online) AU - Sandford, Scott A AU - Allamandola, Louis J Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 478 EP - 488 PB - Elsevier VL - 106 IS - 2 SN - 1090-2643, 1090-2643 KW - hydrology KW - sulfur dioxide KW - solar system KW - experimental studies KW - condensation KW - behavior KW - Io Satellite KW - techniques KW - hydrogen sulfide KW - Galilean satellites KW - vaporization KW - carbon oxide KW - infrared spectra KW - carbon dioxide KW - sublimation KW - ice KW - hydrogen KW - planetology KW - spectra KW - satellites KW - chemical composition KW - geochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51667093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=The+condensation+and+vaporization+behavior+of+ices+containing+SO+%28sub+2%29+%2C+H+%28sub+2%29+S%2C+and+CO+%28sub+2%29+%3B+implications+for+Io&rft.au=Sandford%2C+Scott+A%3BAllamandola%2C+Louis+J&rft.aulast=Sandford&rft.aufirst=Scott&rft.date=1993-12-01&rft.volume=106&rft.issue=2&rft.spage=478&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1993.1186 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - behavior; carbon dioxide; carbon oxide; chemical composition; condensation; experimental studies; Galilean satellites; geochemistry; hydrogen; hydrogen sulfide; hydrology; ice; infrared spectra; Io Satellite; planetology; satellites; solar system; spectra; sublimation; sulfur dioxide; techniques; vaporization DO - http://dx.doi.org/10.1006/icar.1993.1186 ER - TY - JOUR T1 - Radar-derived topography of low southern latitudes of Mars AN - 51665858; 2005-071327 JF - Icarus (Online) AU - Goldspiel, Jules M AU - Squyres, Steven W AU - Slade, Martin A AU - Jurgens, Raymond F AU - Zisk, Stan H Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 346 EP - 364 PB - Elsevier VL - 106 IS - 2 SN - 1090-2643, 1090-2643 KW - Nectaris Fossae KW - impact features KW - erosion KW - Goldstone radar facility KW - Mars KW - landforms KW - topography KW - Margaritifer Sinus KW - Mercury Planet KW - interplanetary comparison KW - Tyrrhena Patera KW - Melas Dorsa KW - Huygens KW - delay-Doppler radar data KW - Earth KW - sediment transport KW - Moon KW - radar methods KW - depth KW - terrestrial planets KW - planets KW - planetology KW - terrestrial comparison KW - Ma'adim Vallis KW - latitude KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51665858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Radar-derived+topography+of+low+southern+latitudes+of+Mars&rft.au=Goldspiel%2C+Jules+M%3BSquyres%2C+Steven+W%3BSlade%2C+Martin+A%3BJurgens%2C+Raymond+F%3BZisk%2C+Stan+H&rft.aulast=Goldspiel&rft.aufirst=Jules&rft.date=1993-12-01&rft.volume=106&rft.issue=2&rft.spage=346&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1993.1177 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - delay-Doppler radar data; depth; Earth; erosion; Goldstone radar facility; Huygens; impact features; interplanetary comparison; landforms; latitude; Ma'adim Vallis; Margaritifer Sinus; Mars; Melas Dorsa; Mercury Planet; Moon; Nectaris Fossae; planetology; planets; radar methods; sediment transport; terrestrial comparison; terrestrial planets; topography; Tyrrhena Patera DO - http://dx.doi.org/10.1006/icar.1993.1177 ER - TY - JOUR T1 - Roosevelt County 075; a petrologic, chemical and isotopic study of the most unequilibrated known H chondrite AN - 50341729; 1994-015617 JF - Meteoritics AU - McCoy, T J AU - Keil, K AU - Ash, R D AU - Morse, A D AU - Pillinger, C T AU - Wieler, R AU - Mayeda, T K AU - Clayton, R N AU - Benoit, P H AU - Sears, Derek W G AU - Casanova, I AU - Muenow, D W AU - Moore, C B AU - Lewis, C F AU - Wilson, I E Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 681 EP - 691 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 5 SN - 0026-1114, 0026-1114 KW - silicates KW - Ne-21 KW - ordinary chondrites KW - stony meteorites KW - oxygen KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - O-18/O-16 KW - He-3 KW - H chondrites KW - stable isotopes KW - iron KW - meteorites KW - Roosevelt County Meteorite KW - mineral composition KW - noble gases KW - neon KW - metals KW - carbon KW - nickel KW - helium KW - chondrites KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50341729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Roosevelt+County+075%3B+a+petrologic%2C+chemical+and+isotopic+study+of+the+most+unequilibrated+known+H+chondrite&rft.au=McCoy%2C+T+J%3BKeil%2C+K%3BAsh%2C+R+D%3BMorse%2C+A+D%3BPillinger%2C+C+T%3BWieler%2C+R%3BMayeda%2C+T+K%3BClayton%2C+R+N%3BBenoit%2C+P+H%3BSears%2C+Derek+W+G%3BCasanova%2C+I%3BMuenow%2C+D+W%3BMoore%2C+C+B%3BLewis%2C+C+F%3BWilson%2C+I+E&rft.aulast=McCoy&rft.aufirst=T&rft.date=1993-12-01&rft.volume=28&rft.issue=5&rft.spage=681&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 58 N1 - PubXState - AZ N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; chondrites; H chondrites; He-3; helium; iron; isotope ratios; isotopes; metals; meteorites; mineral composition; Ne-21; neon; nickel; noble gases; O-18/O-16; ordinary chondrites; oxygen; Roosevelt County Meteorite; silicates; stable isotopes; stony meteorites ER - TY - JOUR T1 - Superheating effects on metal-silicate partitioning of siderophile elements AN - 50296155; 1994-003963 JF - Science AU - Walker, D AU - Norby, L AU - Jones, J H Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 1858 EP - 1861 PB - American Association for the Advancement of Science, Washington, DC VL - 262 IS - 5141 SN - 0036-8075, 0036-8075 KW - silicates KW - liquid phase KW - experimental studies KW - pressure KW - mantle KW - siderophile elements KW - high pressure KW - temperature KW - electron probe data KW - partitioning KW - partition coefficients KW - metals KW - thermal effects KW - high temperature KW - P-T conditions KW - geophysics KW - 18:Solid-earth geophysics KW - 17A:General geophysics KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50296155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Superheating+effects+on+metal-silicate+partitioning+of+siderophile+elements&rft.au=Walker%2C+D%3BNorby%2C+L%3BJones%2C+J+H&rft.aulast=Walker&rft.aufirst=D&rft.date=1993-12-01&rft.volume=262&rft.issue=5141&rft.spage=1858&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 18 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Lamont-Doherty Earth Obs., Contrib. No. 5147 N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - electron probe data; experimental studies; geophysics; high pressure; high temperature; liquid phase; mantle; metals; P-T conditions; partition coefficients; partitioning; pressure; siderophile elements; silicates; temperature; thermal effects ER - TY - JOUR T1 - Greenland ice sheet surface properties and ice dynamics from ERS-1 SAR imagery AN - 50295730; 1994-001522 JF - Science AU - Fahnestock, Mark AU - Bindschadler, Robert AU - Kwok, Ron AU - Jezek, Ken Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 1530 EP - 1534 PB - American Association for the Advancement of Science, Washington, DC VL - 262 IS - 5139 SN - 0036-8075, 0036-8075 KW - surface properties KW - imagery KW - Arctic region KW - radar methods KW - glaciers KW - atmospheric precipitation KW - satellite methods KW - ice sheets KW - ice movement KW - Greenland KW - SAR KW - snow KW - ERS KW - remote sensing KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50295730?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Greenland+ice+sheet+surface+properties+and+ice+dynamics+from+ERS-1+SAR+imagery&rft.au=Fahnestock%2C+Mark%3BBindschadler%2C+Robert%3BKwok%2C+Ron%3BJezek%2C+Ken&rft.aulast=Fahnestock&rft.aufirst=Mark&rft.date=1993-12-01&rft.volume=262&rft.issue=5139&rft.spage=1530&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 15 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Arctic region; atmospheric precipitation; ERS; glaciers; Greenland; ice movement; ice sheets; imagery; radar methods; remote sensing; SAR; satellite methods; snow; surface properties ER - TY - JOUR T1 - Carbonaceous chondrite clasts in the howardites Bholghati and EET87513 AN - 50271245; 1994-015614 AB - The mineralogies of 22 carbonaceous chondrite clasts from the howardites Bholghati and Elephant Moraine 87513 were examined using EPMA and TEM techniques. One clast from EET87513 is classified as CM2 material on the basis of texture, bulk composition, mineralogy and bulk O isotopic composition. Two types of clasts are present in Bholghati: C1 and C2. C1 clasts resemble CI meteorites and some dark inclusions from CR chondrites. They are composed of opaque matrix, predominantly flaky saponite, with rare inclusions of coarse-grained silicate fragments. C2 clasts contain chondrules, aggregates and fragments of coarse-grained silicates in an opaque matrix. The matrix is principally composed of saponite and anhydrous ferromagnesian silicates which are interpreted as the product of heating of pre-existing serpentine. With the exception of the CM2-like clasts, the clasts studied are mineralogically distinct from typical carbonaceous chondrites. However, they have very close affinities to carbonaceous chondrites and have also experienced thermal metamorphism and aqueous alteration, but to different degrees. JF - Meteoritics AU - Buchanan, P C AU - Zolensky, M E AU - Reid, A M Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 659 EP - 668 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 5 SN - 0026-1114, 0026-1114 KW - EET 87513 KW - stony meteorites KW - oxygen KW - isotopes KW - isotope ratios KW - Elephant Moraine Meteorites KW - O-18/O-16 KW - carbonaceous chondrites KW - achondrites KW - stable isotopes KW - electron probe data KW - meteorites KW - phase equilibria KW - howardite KW - inclusions KW - chondrites KW - Bholghati Meteorite KW - xenoliths KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50271245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Carbonaceous+chondrite+clasts+in+the+howardites+Bholghati+and+EET87513&rft.au=Buchanan%2C+P+C%3BZolensky%2C+M+E%3BReid%2C+A+M&rft.aulast=Buchanan&rft.aufirst=P&rft.date=1993-12-01&rft.volume=28&rft.issue=5&rft.spage=659&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 72 N1 - PubXState - AZ N1 - Document feature - 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; Bholghati Meteorite; carbonaceous chondrites; chondrites; EET 87513; electron probe data; Elephant Moraine Meteorites; howardite; inclusions; isotope ratios; isotopes; meteorites; O-18/O-16; oxygen; phase equilibria; stable isotopes; stony meteorites; xenoliths ER - TY - JOUR T1 - The effect of Na vapor on the Na content of chondrules AN - 50267091; 1994-015609 AB - Chondrules contain higher concentrations of volatiles than expected for melt droplets in the solar nebula. Non-canonical nebular conditions may have resulted in significant Na vapour in the chondrule-forming region. Experiments have been carried out to test the hypothesis that Na volatilization rates from chondrules are minimized in the presence of a Na-rich vapour. Samples of Knippa basalt were used as the starting material. Experiments were run at 1 atm and at the I-W buffer, in the T range 1300-1350 degrees C. In the absence of Na vapour, 98% of Na was volatilized in 72 h. Na vapour was supplied by placing a NaCl-filling capsule at the bottom of the furnace, providing a P (sub Na) of approximately 10 (super -6) atm. With Na vapour present, the Na (sub 2) O content of the glass was maintained or in some cases increased. The presence of Na-rich vapour in the chondrule-forming region may account for the high Na content of chondrules. JF - Meteoritics AU - Lewis, R Dean AU - Lofgren, Gary E AU - Franzen, Hugo F AU - Windom, Kenneth E Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 622 EP - 628 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 5 SN - 0026-1114, 0026-1114 KW - solar nebula KW - genesis KW - meteorites KW - volatiles KW - metals KW - chondrules KW - alkali metals KW - mathematical models KW - cosmochemistry KW - sodium KW - P-T conditions KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50267091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=The+effect+of+Na+vapor+on+the+Na+content+of+chondrules&rft.au=Lewis%2C+R+Dean%3BLofgren%2C+Gary+E%3BFranzen%2C+Hugo+F%3BWindom%2C+Kenneth+E&rft.aulast=Lewis&rft.aufirst=R&rft.date=1993-12-01&rft.volume=28&rft.issue=5&rft.spage=622&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 24 N1 - PubXState - AZ N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkali metals; chondrules; cosmochemistry; genesis; mathematical models; metals; meteorites; P-T conditions; sodium; solar nebula; volatiles ER - TY - JOUR T1 - First Almaz images of East African Rift AN - 50258730; 1994-028622 JF - Eos, Transactions, American Geophysical Union AU - Heirtzler, J R AU - Loupian (Lupian), Evgeni (Yevgeniy) AU - Natenzon, Michael AU - Tarnopolsky (Tarnopolskiy), Vladimir AU - Shkarin, Vladimir AU - Shirokov, Pavel AU - Anonymous Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 606 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - Lake Tanyika KW - East Africa KW - Almaz KW - space photography KW - radar methods KW - East African Rift KW - Lake Rukwa KW - Kenya KW - Ethiopia KW - Kenya Rift valley KW - Africa KW - Afar Depression KW - remote sensing KW - Afar triple junction KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50258730?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+Almaz+images+of+East+African+Rift&rft.au=Heirtzler%2C+J+R%3BLoupian+%28Lupian%29%2C+Evgeni+%28Yevgeniy%29%3BNatenzon%2C+Michael%3BTarnopolsky+%28Tarnopolskiy%29%2C+Vladimir%3BShkarin%2C+Vladimir%3BShirokov%2C+Pavel%3BAnonymous&rft.aulast=Heirtzler&rft.aufirst=J&rft.date=1993-12-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=606&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Afar Depression; Afar triple junction; Africa; Almaz; East Africa; East African Rift; Ethiopia; Kenya; Kenya Rift valley; Lake Rukwa; Lake Tanyika; radar methods; remote sensing; space photography ER - TY - JOUR T1 - Terrestrial ecosystem production; a process model based on global satellite and surface data AN - 50059375; 2010-029249 JF - Global Biogeochemical Cycles AU - Potter, Christopher S AU - Randerson, James T AU - Field, Christopher B AU - Matson, Pamela A AU - Vitousek, Peter M AU - Mooney, Harold A AU - Klooster, Steven A Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 811 EP - 841 PB - American Geophysical Union, Washington, DC VL - 7 IS - 4 SN - 0886-6236, 0886-6236 KW - biomass KW - moisture KW - ecosystems KW - production KW - nitrogen KW - AVHRR KW - size distribution KW - infrared methods KW - carbon KW - mineralization KW - CASA biosphere model KW - geochemistry KW - soils KW - forests KW - grain size KW - global KW - geophysical methods KW - satellite methods KW - Carnegie-Ames-Stanford Approach KW - geochemical cycle KW - models KW - biosphere KW - residence time KW - grasslands KW - desert-shrub biome KW - seasonal variations KW - savannas KW - latitude KW - carbon cycle KW - remote sensing KW - airborne methods 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/50059375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Terrestrial+ecosystem+production%3B+a+process+model+based+on+global+satellite+and+surface+data&rft.au=Potter%2C+Christopher+S%3BRanderson%2C+James+T%3BField%2C+Christopher+B%3BMatson%2C+Pamela+A%3BVitousek%2C+Peter+M%3BMooney%2C+Harold+A%3BKlooster%2C+Steven+A&rft.aulast=Potter&rft.aufirst=Christopher&rft.date=1993-12-01&rft.volume=7&rft.issue=4&rft.spage=811&rft.isbn=&rft.btitle=&rft.title=Global+Biogeochemical+Cycles&rft.issn=08866236&rft_id=info:doi/10.1029%2F93GB02725 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 113 N1 - PubXState - DC N1 - Document feature - illus. incl. 11 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - airborne methods; AVHRR; biomass; biosphere; carbon; carbon cycle; Carnegie-Ames-Stanford Approach; CASA biosphere model; desert-shrub biome; ecosystems; forests; geochemical cycle; geochemistry; geophysical methods; global; grain size; grasslands; infrared methods; latitude; mineralization; models; moisture; nitrogen; production; remote sensing; residence time; satellite methods; savannas; seasonal variations; size distribution; soils DO - http://dx.doi.org/10.1029/93GB02725 ER - TY - JOUR T1 - The distribution of earthquakes and volcanoes along the East African Rift system AN - 1473587415; 2013-002524 AB - The pattern of earthquake epicenters for the period 1904 to 1993 is compared with the distribution of 615 Cenozoic volcanoes in the East African Rift system. JF - Episodes AU - Nusbaum, Robert L AU - Girdler, Ronald W AU - Heirtzler, James R AU - Hutt, Duncan J AU - Green, David AU - Millings, Victor E AU - Schmoll, Bradley S AU - Shapiro, Joel Y1 - 1993/12// PY - 1993 DA - December 1993 SP - 427 EP - 432 PB - International Union of Geological Sciences (IUGS), Ottawa, ON VL - 16 IS - 4 SN - 0705-3797, 0705-3797 KW - imagery KW - patterns KW - Quaternary KW - Holocene KW - distribution KW - modern KW - Cenozoic KW - Landsat KW - East African Rift KW - plate tectonics KW - seismicity KW - volcanism KW - eruptions KW - volcanoes KW - Africa KW - epicenters KW - earthquakes KW - remote sensing KW - 24:Quaternary geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1473587415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Episodes&rft.atitle=The+distribution+of+earthquakes+and+volcanoes+along+the+East+African+Rift+system&rft.au=Nusbaum%2C+Robert+L%3BGirdler%2C+Ronald+W%3BHeirtzler%2C+James+R%3BHutt%2C+Duncan+J%3BGreen%2C+David%3BMillings%2C+Victor+E%3BSchmoll%2C+Bradley+S%3BShapiro%2C+Joel&rft.aulast=Nusbaum&rft.aufirst=Robert&rft.date=1993-12-01&rft.volume=16&rft.issue=4&rft.spage=427&rft.isbn=&rft.btitle=&rft.title=Episodes&rft.issn=07053797&rft_id=info:doi/ L2 - http://www.episodes.co.in/www/backissues/164/Articles--427.pdf LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 48 N1 - PubXState - ON N1 - Document feature - sketch maps N1 - SuppNotes - Accessed on Nov. 29, 2012 N1 - Last updated - 2014-01-02 N1 - CODEN - GENWBO N1 - SubjectsTermNotLitGenreText - Africa; Cenozoic; distribution; earthquakes; East African Rift; epicenters; eruptions; Holocene; imagery; Landsat; modern; patterns; plate tectonics; Quaternary; remote sensing; seismicity; volcanism; volcanoes ER - TY - JOUR T1 - Airborne Arctic Stratospheric Expedition II AN - 50140342; 1995-048649 JF - Geophysical Research Letters AU - Anderson, James G AU - Toon, Owen B Y1 - 1993/11/19/ PY - 1993 DA - 1993 Nov 19 SP - 2499 EP - 2578 PB - American Geophysical Union, Washington, DC VL - 20 IS - 22 SN - 0094-8276, 0094-8276 KW - ozone KW - stratosphere KW - Airborne Arctic Stratospheric Expedition KW - global change KW - satellite methods KW - AASE-II KW - airborne methods KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50140342?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Anderson%2C+James+G%3BToon%2C+Owen+B&rft.aulast=Anderson&rft.aufirst=James&rft.date=1993-11-19&rft.volume=&rft.issue=&rft.spage=2499&rft.isbn=&rft.btitle=Airborne+Arctic+Stratospheric+Expedition+II&rft.title=Airborne+Arctic+Stratospheric+Expedition+II&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL03118 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2013-01-17 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - AASE-II; Airborne Arctic Stratospheric Expedition; airborne methods; global change; ozone; satellite methods; stratosphere DO - http://dx.doi.org/10.1029/93GL03118 ER - TY - JOUR T1 - Soil evolution on a terrace chronosequences in the Wind River basin, Wyoming AN - 52827135; 1996-047612 JF - Agronomy Abstracts AU - Peacock, C AU - Chadwick, O A AU - Kelly, E F AU - Anonymous Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 303 PB - American Society of Agronomy, Madison, WI VL - 85 SN - 0375-5495, 0375-5495 KW - United States KW - silicates KW - isotopes KW - halogens KW - terraces KW - Holocene KW - Cenozoic KW - radioactive isotopes KW - mineral composition KW - dates KW - carbon KW - glacial environment KW - sediments KW - absolute age KW - soils KW - chlorine KW - concentration KW - Quaternary KW - interglacial environment KW - clastic sediments KW - Cl-36 KW - evolution KW - clay minerals KW - models KW - Wyoming KW - Wind River basin KW - K/Ar KW - sheet silicates KW - alluvium KW - C-14 KW - wind transport KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52827135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agronomy+Abstracts&rft.atitle=Soil+evolution+on+a+terrace+chronosequences+in+the+Wind+River+basin%2C+Wyoming&rft.au=Peacock%2C+C%3BChadwick%2C+O+A%3BKelly%2C+E+F%3BAnonymous&rft.aulast=Peacock&rft.aufirst=C&rft.date=1993-11-01&rft.volume=85&rft.issue=&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Agronomy+Abstracts&rft.issn=03755495&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Society of Agronomy, Crop Science Society of America and Soil Science Society of America; 1993 annual meetings N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - WI N1 - Last updated - 2012-06-07 N1 - CODEN - AGABBE N1 - SubjectsTermNotLitGenreText - absolute age; alluvium; C-14; carbon; Cenozoic; chlorine; Cl-36; clastic sediments; clay minerals; concentration; dates; evolution; glacial environment; halogens; Holocene; interglacial environment; isotopes; K/Ar; mineral composition; models; Quaternary; radioactive isotopes; sediments; sheet silicates; silicates; soils; terraces; United States; Wind River basin; wind transport; Wyoming ER - TY - JOUR T1 - Quantifying pedogenic responses to climate, Hawaii; II, Biological and chemical transformations AN - 52826904; 1996-047588 JF - Agronomy Abstracts AU - Kelly, E F AU - Chadwick, O A AU - Olson, C G AU - Capo, R C AU - Gavenda, R T AU - Laird, W E AU - Smith, C AU - Hendricks, D M AU - Anonymous Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 299 EP - 300 PB - American Society of Agronomy, Madison, WI VL - 85 SN - 0375-5495, 0375-5495 KW - United States KW - soils KW - organic materials KW - concentration KW - alteration KW - pedogenesis KW - Hawaii County Hawaii KW - biochemistry KW - Hawaii KW - East Pacific Ocean Islands KW - Kohala Peninsula KW - physical properties KW - organic compounds KW - ash KW - chemical reactions KW - quantitative analysis KW - precipitation KW - carbon KW - Oceania KW - Polynesia KW - climate KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52826904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agronomy+Abstracts&rft.atitle=Quantifying+pedogenic+responses+to+climate%2C+Hawaii%3B+II%2C+Biological+and+chemical+transformations&rft.au=Kelly%2C+E+F%3BChadwick%2C+O+A%3BOlson%2C+C+G%3BCapo%2C+R+C%3BGavenda%2C+R+T%3BLaird%2C+W+E%3BSmith%2C+C%3BHendricks%2C+D+M%3BAnonymous&rft.aulast=Kelly&rft.aufirst=E&rft.date=1993-11-01&rft.volume=85&rft.issue=&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Agronomy+Abstracts&rft.issn=03755495&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Society of Agronomy, Crop Science Society of America and Soil Science Society of America; 1993 annual meetings N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - WI N1 - Last updated - 2012-06-07 N1 - CODEN - AGABBE N1 - SubjectsTermNotLitGenreText - alteration; ash; biochemistry; carbon; chemical reactions; climate; concentration; East Pacific Ocean Islands; Hawaii; Hawaii County Hawaii; Kohala Peninsula; Oceania; organic compounds; organic materials; pedogenesis; physical properties; Polynesia; precipitation; quantitative analysis; soils; United States ER - TY - JOUR T1 - Quantifying pedogenic response to climate, Hawaii; I, Geomorphic and physiographic setting AN - 52825871; 1996-047608 JF - Agronomy Abstracts AU - Olson, C G AU - Chadwick, O A AU - Kelly, E F AU - Gavenda, R T AU - Laird, W E AU - Smith, C W AU - Hendricks, D M AU - Capo, R C AU - Anonymous Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 303 PB - American Society of Agronomy, Madison, WI VL - 85 SN - 0375-5495, 0375-5495 KW - United States KW - pedogenesis KW - eustacy KW - lava flows KW - Hawaii KW - subsidence KW - East Pacific Ocean Islands KW - atmospheric precipitation KW - models KW - quantitative analysis KW - Oceania KW - volcanoes KW - Polynesia KW - wind transport KW - climate KW - changes KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52825871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agronomy+Abstracts&rft.atitle=Quantifying+pedogenic+response+to+climate%2C+Hawaii%3B+I%2C+Geomorphic+and+physiographic+setting&rft.au=Olson%2C+C+G%3BChadwick%2C+O+A%3BKelly%2C+E+F%3BGavenda%2C+R+T%3BLaird%2C+W+E%3BSmith%2C+C+W%3BHendricks%2C+D+M%3BCapo%2C+R+C%3BAnonymous&rft.aulast=Olson&rft.aufirst=C&rft.date=1993-11-01&rft.volume=85&rft.issue=&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Agronomy+Abstracts&rft.issn=03755495&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Society of Agronomy, Crop Science Society of America and Soil Science Society of America; 1993 annual meetings N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - WI N1 - Last updated - 2012-06-07 N1 - CODEN - AGABBE N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; changes; climate; East Pacific Ocean Islands; eustacy; Hawaii; lava flows; models; Oceania; pedogenesis; Polynesia; quantitative analysis; subsidence; United States; volcanoes; wind transport ER - TY - JOUR T1 - Quantifying pedogenic responses to climate, Hawaii; III, Mineral transformations AN - 52824782; 1996-047580 JF - Agronomy Abstracts AU - Hendricks, D M AU - Chadwick, O A AU - Kelly, E F AU - Olson, C G AU - Capo, R C AU - Gavenda, R T AU - Laird, W E AU - Smith, C W AU - Anonymous Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 298 PB - American Society of Agronomy, Madison, WI VL - 85 SN - 0375-5495, 0375-5495 KW - United States KW - soils KW - silicates KW - pedogenesis KW - rainfall KW - moisture KW - smectite KW - Hawaii KW - East Pacific Ocean Islands KW - weathering KW - clay minerals KW - chemical reactions KW - quantitative analysis KW - precipitation KW - Oceania KW - sheet silicates KW - Polynesia KW - halloysite KW - chemical ratios KW - minerals KW - climate KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52824782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agronomy+Abstracts&rft.atitle=Quantifying+pedogenic+responses+to+climate%2C+Hawaii%3B+III%2C+Mineral+transformations&rft.au=Hendricks%2C+D+M%3BChadwick%2C+O+A%3BKelly%2C+E+F%3BOlson%2C+C+G%3BCapo%2C+R+C%3BGavenda%2C+R+T%3BLaird%2C+W+E%3BSmith%2C+C+W%3BAnonymous&rft.aulast=Hendricks&rft.aufirst=D&rft.date=1993-11-01&rft.volume=85&rft.issue=&rft.spage=298&rft.isbn=&rft.btitle=&rft.title=Agronomy+Abstracts&rft.issn=03755495&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Society of Agronomy, Crop Science Society of America and Soil Science Society of America; 1993 annual meetings N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - WI N1 - Last updated - 2012-06-07 N1 - CODEN - AGABBE N1 - SubjectsTermNotLitGenreText - chemical ratios; chemical reactions; clay minerals; climate; East Pacific Ocean Islands; halloysite; Hawaii; minerals; moisture; Oceania; pedogenesis; Polynesia; precipitation; quantitative analysis; rainfall; sheet silicates; silicates; smectite; soils; United States; weathering ER - TY - JOUR T1 - Characterization of synthetic apatites used in zeoponic plant growth experiments AN - 52822996; 1996-047751 JF - Agronomy Abstracts AU - Galindo, C AU - Ming, D W AU - Golden, D C AU - Anonymous Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 344 EP - 345 PB - American Society of Agronomy, Madison, WI VL - 85 SN - 0375-5495, 0375-5495 KW - soils KW - silicates KW - apatite KW - Plantae KW - experimental studies KW - X-ray diffraction data KW - characterization KW - crystal structure KW - phosphates KW - solution KW - ions KW - nutrition KW - chemical reactions KW - precipitation KW - clinoptilolite KW - zeolite group KW - framework silicates KW - synthetic materials KW - SEM data KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52822996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agronomy+Abstracts&rft.atitle=Characterization+of+synthetic+apatites+used+in+zeoponic+plant+growth+experiments&rft.au=Galindo%2C+C%3BMing%2C+D+W%3BGolden%2C+D+C%3BAnonymous&rft.aulast=Galindo&rft.aufirst=C&rft.date=1993-11-01&rft.volume=85&rft.issue=&rft.spage=344&rft.isbn=&rft.btitle=&rft.title=Agronomy+Abstracts&rft.issn=03755495&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Society of Agronomy, Crop Science Society of America and Soil Science Society of America; 1993 annual meetings N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - WI N1 - Last updated - 2012-06-07 N1 - CODEN - AGABBE N1 - SubjectsTermNotLitGenreText - apatite; characterization; chemical reactions; clinoptilolite; crystal structure; experimental studies; framework silicates; ions; nutrition; phosphates; Plantae; precipitation; SEM data; silicates; soils; solution; synthetic materials; X-ray diffraction data; zeolite group ER - TY - JOUR T1 - A modified alkylammonium procedure for layer charge determination of phyllosilicates AN - 52822380; 1996-047754 JF - Agronomy Abstracts AU - Golden, D C AU - Fournier, F P AU - Ming, D W AU - Zolensky, M E AU - Anonymous Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 345 PB - American Society of Agronomy, Madison, WI VL - 85 SN - 0375-5495, 0375-5495 KW - soils KW - silicates KW - organic materials KW - high-resolution methods KW - concentration KW - lattice KW - smectite KW - crystal structure KW - aqueous solutions KW - alkylammonium KW - recrystallization KW - ions KW - clay minerals KW - meteorites KW - organic compounds KW - mineral composition KW - chemical reactions KW - sheet silicates KW - SEM data KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52822380?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agronomy+Abstracts&rft.atitle=A+modified+alkylammonium+procedure+for+layer+charge+determination+of+phyllosilicates&rft.au=Golden%2C+D+C%3BFournier%2C+F+P%3BMing%2C+D+W%3BZolensky%2C+M+E%3BAnonymous&rft.aulast=Golden&rft.aufirst=D&rft.date=1993-11-01&rft.volume=85&rft.issue=&rft.spage=345&rft.isbn=&rft.btitle=&rft.title=Agronomy+Abstracts&rft.issn=03755495&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Society of Agronomy, Crop Science Society of America and Soil Science Society of America; 1993 annual meetings N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - WI N1 - Last updated - 2012-06-07 N1 - CODEN - AGABBE N1 - SubjectsTermNotLitGenreText - alkylammonium; aqueous solutions; chemical reactions; clay minerals; concentration; crystal structure; high-resolution methods; ions; lattice; meteorites; mineral composition; organic compounds; organic materials; recrystallization; SEM data; sheet silicates; silicates; smectite; soils ER - TY - JOUR T1 - The contribution of explosive volcanism to global atmospheric sulphur dioxide concentrations AN - 50295350; 1994-001437 AB - Data obtained from the total ozone mapping spectrometer aboard the NASA satellite Nimbus 7, of SO (sub 2) emissions from explosive eruptions from Nov 1978-May 1993, are used to show that the annual flux from these eruptions is approx 4 Mt SO (sub 2) (< 50% of the non-explosive output). The total volcanic emission of SO (sub 2) to the atmosphere is approx 13 Mt/yr, approx 5-10% of the current anthropogenic flux. JF - Nature (London) AU - Bluth, G J S AU - Schnetzler, C C AU - Krueger, A J AU - Walter, L S Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 327 EP - 329 PB - Macmillan Journals, London VL - 366 IS - 6453 SN - 0028-0836, 0028-0836 KW - sulfur dioxide KW - geologic hazards KW - global KW - volcanoes KW - pollution KW - atmosphere KW - explosive eruptions KW - degassing KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50295350?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=The+contribution+of+explosive+volcanism+to+global+atmospheric+sulphur+dioxide+concentrations&rft.au=Bluth%2C+G+J+S%3BSchnetzler%2C+C+C%3BKrueger%2C+A+J%3BWalter%2C+L+S&rft.aulast=Bluth&rft.aufirst=G+J&rft.date=1993-11-01&rft.volume=366&rft.issue=6453&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F366327a0 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 - 1994-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - atmosphere; degassing; explosive eruptions; geologic hazards; global; pollution; sulfur dioxide; volcanoes DO - http://dx.doi.org/10.1038/366327a0 ER - TY - JOUR T1 - International workshop on Variable phenomena in Jovian planetary systems AN - 50282926; 1994-006051 JF - Journal of Geophysical Research AU - Kostiuk, Theodor AU - McGrath, Melissa AU - Bergstralh, Jay Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 18 EP - 18,876 PB - American Geophysical Union, Washington, DC VL - 98 IS - E10 SN - 0148-0227, 0148-0227 KW - clouds KW - Jupiter KW - Io Satellite KW - atmosphere KW - Galilean satellites KW - giant planets KW - planets KW - transient phenomena KW - symposia KW - radio-wave methods KW - outer planets KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50282926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=Journal+of+Geophysical+Research&rft.atitle=International+workshop+on+Variable+phenomena+in+Jovian+planetary+systems&rft.au=Kostiuk%2C+Theodor%3BMcGrath%2C+Melissa%3BBergstralh%2C+Jay&rft.aulast=Kostiuk&rft.aufirst=Theodor&rft.date=1993-11-01&rft.volume=98&rft.issue=E10&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE02466 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - International workshop on Variable phenomena in Jovian planetary systems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Document feature - illus. incl. tables N1 - SuppNotes - Individual papers are not cited separately N1 - Last updated - 2012-06-15 N1 - SubjectsTermNotLitGenreText - atmosphere; clouds; Galilean satellites; giant planets; Io Satellite; Jupiter; outer planets; planets; radio-wave methods; satellites; symposia; transient phenomena DO - http://dx.doi.org/10.1029/93JE02466 ER - TY - JOUR T1 - An improved gravity model for Mars; Goddard Mars Model 1 AN - 50179785; 1994-006048 AB - Doppler tracking data of three orbiting spacecraft have been reanalyzed to develop a new gravitational field model for the planet Mars, Goddard Mars Model 1 (GMM-I). This model employs nearly all available data, consisting of approximately 1100 days of S band tracking data collected by NASA's Deep Space Network from the Mariner 9 and Viking 1 and Viking 2 spacecraft, in seven different orbits, between 1971 and 1979. GMM-I is complete to spherical harmonic degree and order 50, which corresponds to a half-wavelength spatial resolution of 200-300 km where the data permit. GMM-I represents satellite orbits with considerably better accuracy than previous Mars gravity models and shows greater resolution of identifiable geological structures. The notable improvement in GMM-I over previous models is a consequence of several factors: improved computational capabilities, the use of optimum weighting and least squares collocation solution techniques which stabilized the behavior of the solution at high degree and order, and the use of longer satellite arcs than employed in previous solutions that were made possible by improved force and measurement models. The inclusion of X band tracking data from the 379-km altitude, near-polar orbiting Mars Observer spacecraft should provide a significant improvement over GMM-I, particularly at high latitudes where current data poorly resolve the gravitational signature of the planet. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Smith, D E AU - Lerch, F J AU - Nerem, R S AU - Zuber, M T AU - Patel, G B AU - Fricke, S K AU - Lemoine, F G Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 20 EP - 20,889 PB - American Geophysical Union, Washington, DC VL - 98 IS - E11 SN - 0148-0227, 0148-0227 KW - free-air anomalies KW - data processing KW - Viking Program KW - Mars KW - satellite methods KW - terrestrial planets KW - models KW - planets KW - gravity anomalies KW - gravity field KW - Goddard Mars Model 1 KW - orbital observations KW - accuracy KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50179785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+improved+gravity+model+for+Mars%3B+Goddard+Mars+Model+1&rft.au=Smith%2C+D+E%3BLerch%2C+F+J%3BNerem%2C+R+S%3BZuber%2C+M+T%3BPatel%2C+G+B%3BFricke%2C+S+K%3BLemoine%2C+F+G&rft.aulast=Smith&rft.aufirst=D&rft.date=1993-11-01&rft.volume=98&rft.issue=E11&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE01839 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 56 N1 - PubXState - DC N1 - Document feature - illus. incl. 9 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; data processing; free-air anomalies; Goddard Mars Model 1; gravity anomalies; gravity field; Mars; models; orbital observations; planets; remote sensing; satellite methods; terrestrial planets; Viking Program DO - http://dx.doi.org/10.1029/93JE01839 ER - TY - JOUR T1 - The nanophase iron mineral(s) in Mars soil AN - 50179740; 1994-006046 AB - A series of surface-modified clays containing nanophase (np) iron oxide/oxyhydroxides of extremely small particle sizes, with total iron contents as high as found in Mars soil, were prepared by iron deposition on the clay surface from ferrous chloride solution. Comprehensive studies of the iron mineralogy in these "Mars-soil analogs" were conducted using chemical extractions, solubility analyses, pH and redox, x ray and electron diffractometry, electron microscopic imaging, specific surface area and particle size determinations, differential thermal analyses, magnetic properties characterization, spectral reflectance, and Viking biology simulation experiments. The clay matrix and the procedure used for synthesis produced nanophase iron oxides containing a certain proportion of divalent iron, which slowly converts to more stable, fully oxidized iron minerals. The clay acted as an effective matrix, both chemically and sterically, preventing the major part of the synthesized iron oxides from ripening, i.e., growing and developing larger crystals. The precipitated iron oxides appear as isodiametric or slightly elongated particles in the size range 1-10 nm, having large specific surface area. The noncrystalline nature of the iron compounds precipitated on the surface of the clay was verified by their complete extractability in oxalate. Lepidocrocite (gamma -FeOOH) was detected by selected area electron diffraction. It is formed from a double iron Fe(II)/Fe(III) hydroxy mineral such as "green rust," or ferrosic hydroxide. Magnetic measurements suggested that lepidocrocite converted to the more stable maghemite (gamma -Fe (sub 2) O (sub 3) ) by mild heat treatment and then to nanophase hematite (alpha -Fe (sub 2) O (sub 3) ) by extensive heat treatment. After mild heating, the iron-enriched clay became slightly magnetic, to the extent that it adheres to a hand-held magnet, as was observed with Mars soil. The chemical reactivity of the iron-enriched clays strongly resembles, and offers a plausible mechanism for, the somewhat puzzling observations of the Viking biology experiments. Their unique chemical reactivities are attributed to the combined catalytic effects of the iron oxide/oxyhydroxide and silicate phase surfaces. The reflectance spectrum of the clay-iron preparations in the visible range is generally similar to the reflectance curves of bright regions on Mars. This strengthens the evidence for the predominance of nanophase iron oxides/oxyhydroxides in Mars soil. The mode of formation of these nanophase iron oxides on Mars is still unknown. It is puzzling that despite the long period of time since aqueous weathering took place on Mars, they have not developed from their transitory stage to well-crystallized end-members. The possibility is suggested that these phases represent a continuously on-going, extremely slow weathering process. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Banin, A AU - Ben-Shlomo, T AU - Margulies, L AU - Blake, D F AU - Mancinelli, R L AU - Gehring, A U Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 20 EP - 20,853 PB - American Geophysical Union, Washington, DC VL - 98 IS - E11 SN - 0148-0227, 0148-0227 KW - soils KW - experimental studies KW - iron oxides KW - iron minerals KW - X-ray diffraction data KW - grain size KW - electron diffraction analysis KW - paleomagnetism KW - Mars KW - crystal growth KW - simulation KW - weathering KW - TEM data KW - possibilities KW - terrestrial planets KW - planets KW - chemical reactions KW - phase equilibria KW - magnetic susceptibility KW - oxides KW - synthesis KW - 04:Extraterrestrial geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50179740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+nanophase+iron+mineral%28s%29+in+Mars+soil&rft.au=Banin%2C+A%3BBen-Shlomo%2C+T%3BMargulies%2C+L%3BBlake%2C+D+F%3BMancinelli%2C+R+L%3BGehring%2C+A+U&rft.aulast=Banin&rft.aufirst=A&rft.date=1993-11-01&rft.volume=98&rft.issue=E11&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE02500 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 120 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical reactions; crystal growth; electron diffraction analysis; experimental studies; grain size; iron minerals; iron oxides; magnetic susceptibility; Mars; oxides; paleomagnetism; phase equilibria; planets; possibilities; simulation; soils; synthesis; TEM data; terrestrial planets; weathering; X-ray diffraction data DO - http://dx.doi.org/10.1029/93JE02500 ER - TY - JOUR T1 - The impact of the eruptions of Mount Pinatubo and Cerro Hudson on Antarctic aerosol levels during the 1991 austral spring AN - 50173847; 1995-048641 AB - At the beginning of the 1991 Austral spring, volcanic aerosols from Mt. Pinatubo and Cerro Hudson were present in the polar stratosphere of the Southern Hemisphere. Satellite observations of aerosol extinction were used to identify and track the movement of these aerosols in the vicinity of the Antarctic vortex during August through November 1991. A layer of mature Mt. Pinatubo aerosols was identified near 21 km and a layer of fresh Cerro Hudson aerosols was identified near 12 km. This altitude separation of the Mt Pinatubo and Cerro Hudson aerosols was observed throughout the period. Below 15 km, the polar stratosphere was subject to episodes of strong wave activity which transported the Cerro Hudson aerosols poleward and, after the middle of September, they became a persistent feature beneath the vortex. Above 15 km, signatures of Mt. Pinatubo aerosols were observed near the vortex boundary, but significant portions of the vortex interior remained free of any detectable intrusions of Mt. Pinatubo aerosols until the final warming in mid-November. Copyright 1993 by the American Geophysical Union. JF - Geophysical Research Letters AU - Pitts, M C AU - Thomason, L W Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 2451 EP - 2454 PB - American Geophysical Union, Washington, DC VL - 20 IS - 22 SN - 0094-8276, 0094-8276 KW - sulfur dioxide KW - sulfuric acid KW - Luzon KW - Far East KW - SAM II KW - Antarctic Ocean KW - satellite methods KW - Southern Hemisphere KW - SAGE II KW - Antarctica KW - stratosphere KW - Mount Pinatubo KW - Philippine Islands KW - Mount Hudson KW - volcanism KW - eruptions KW - aerosols KW - seasonal variations KW - Asia KW - inorganic acids KW - remote sensing KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50173847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=The+impact+of+the+eruptions+of+Mount+Pinatubo+and+Cerro+Hudson+on+Antarctic+aerosol+levels+during+the+1991+austral+spring&rft.au=Pitts%2C+M+C%3BThomason%2C+L+W&rft.aulast=Pitts&rft.aufirst=M&rft.date=1993-11-01&rft.volume=20&rft.issue=22&rft.spage=2451&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL02160 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 11 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Antarctic Ocean; Antarctica; Asia; eruptions; Far East; inorganic acids; Luzon; Mount Hudson; Mount Pinatubo; Philippine Islands; remote sensing; SAGE II; SAM II; satellite methods; seasonal variations; Southern Hemisphere; stratosphere; sulfur dioxide; sulfuric acid; volcanism DO - http://dx.doi.org/10.1029/93GL02160 ER - TY - JOUR T1 - In situ measurements of CIO at mid-latitudes; is there an effect from Mt. Pinatubo? AN - 50170189; 1995-048651 AB - Observations of ClO from 20 to 60 degrees N made before and after the eruption of Mt. Pinatubo are compared for changes which may result from increased sulfate aerosol surface area. Using ozone as a vertical coordinate and examining data at similar latitudes and seasons, elevated abundances of ClO are found at low latitudes (20 to 30 degrees N), an effect which decreases with increasing latitude. For the flights compared, there appear to be no differences, within the uncertainty of the measurements, at latitudes poleward of 40 degrees N. These results are consistent with the idea that the hydrolysis of N (sub 2) O (sub 5) on sulfate aerosols becomes saturated at moderate aerosol loadings. Copyright 1993 by the American Geophysical Union. JF - Geophysical Research Letters AU - Avallone, L M AU - Toohey, D W AU - Proffitt, M H AU - Margitan, J J AU - Chan, K R AU - Anderson, James G AU - Toon, Owen B Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 2519 EP - 2522 PB - American Geophysical Union, Washington, DC VL - 20 IS - 22 SN - 0094-8276, 0094-8276 KW - Luzon KW - sulfate ion KW - Far East KW - volcanology KW - ozone KW - stratosphere KW - Mount Pinatubo KW - chemical reactions KW - Philippine Islands KW - volcanism KW - chlorine oxide KW - aerosols KW - latitude KW - Asia KW - geochemistry KW - AASE-II KW - remote sensing KW - airborne methods KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50170189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=In+situ+measurements+of+CIO+at+mid-latitudes%3B+is+there+an+effect+from+Mt.+Pinatubo%3F&rft.au=Avallone%2C+L+M%3BToohey%2C+D+W%3BProffitt%2C+M+H%3BMargitan%2C+J+J%3BChan%2C+K+R%3BAnderson%2C+James+G%3BToon%2C+Owen+B&rft.aulast=Avallone&rft.aufirst=L&rft.date=1993-11-01&rft.volume=20&rft.issue=22&rft.spage=2519&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL02418 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - AASE-II; aerosols; airborne methods; Asia; chemical reactions; chlorine oxide; Far East; geochemistry; latitude; Luzon; Mount Pinatubo; ozone; Philippine Islands; remote sensing; stratosphere; sulfate ion; volcanism; volcanology DO - http://dx.doi.org/10.1029/93GL02418 ER - TY - JOUR T1 - Effects of Pinatubo aerosol on stratospheric ozone at mid-latitudes AN - 50170072; 1995-048650 AB - Mid-latitude ozone data from ER-2 aircraft measurements in 1989, 1991 and 1992 were examined to determine how sulfate aerosols from the eruption of Mt. Pinatubo had affected ozone at about 18 km. N (sub 2) O was used as a tracer to help distinguish between chemical and dynamical aerosol effects. At 20-45 degrees N in February 1992, ozone was about 10-20% lower than February 1989 and 1991, with respect to N (sub 2) O. Data from Aug. 1991-Mar. 1992 showed changes in ozone with respect to N (sub 2) O, but the magnitude of those changes was not correlated with the magnitude of the changes in aerosol surface area density. Copyright 1993 by the American Geophysical Union. JF - Geophysical Research Letters AU - Weaver, A AU - Loewenstein, M AU - Podolske, J R AU - Strahan, S E AU - Proffitt, M H AU - Aikin, K AU - Margitan, J J AU - Jonsson, H H AU - Brock, C A AU - Wilson, J C AU - Toon, Owen B AU - Anderson, James G Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 2515 EP - 2518 PB - American Geophysical Union, Washington, DC VL - 20 IS - 22 SN - 0094-8276, 0094-8276 KW - Luzon KW - Far East KW - nitrous oxide KW - atomic absorption spectra KW - ozone KW - stratosphere KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - tracers KW - aerosols KW - spectra KW - latitude KW - Asia KW - AASE-II KW - remote sensing KW - airborne methods KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50170072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Effects+of+Pinatubo+aerosol+on+stratospheric+ozone+at+mid-latitudes&rft.au=Weaver%2C+A%3BLoewenstein%2C+M%3BPodolske%2C+J+R%3BStrahan%2C+S+E%3BProffitt%2C+M+H%3BAikin%2C+K%3BMargitan%2C+J+J%3BJonsson%2C+H+H%3BBrock%2C+C+A%3BWilson%2C+J+C%3BToon%2C+Owen+B%3BAnderson%2C+James+G&rft.aulast=Weaver&rft.aufirst=A&rft.date=1993-11-01&rft.volume=20&rft.issue=22&rft.spage=2515&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL02633 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - AASE-II; aerosols; airborne methods; Asia; atomic absorption spectra; Far East; latitude; Luzon; Mount Pinatubo; nitrous oxide; ozone; Philippine Islands; remote sensing; spectra; stratosphere; tracers; volcanism DO - http://dx.doi.org/10.1029/93GL02633 ER - TY - JOUR T1 - Inherent optical properties of the ocean: Retrieval of the absorption coefficient of chromophoric dissolved organic matter from fluorescence measurements AN - 1808674023; PQ0003340461 AB - The quantitative relationship between the absorption and fluorescence emission of chromophoric (colored) dissolved organic matter (CDOM) has been determined along five cruise tracks in the western North Atlantic Ocean, the Gulf of Mexico, and Monterey Bay, and includes Gulf Stream, Loop Current, slope, shelf, and coastal waters. We present a protocol for the determination of CDOM fluorescence that will allow both interlaboratory comparisons and the calibration of airborne fluorescence measurements. This protocol is based on the use of the water Raman signal as an internal radiometric standard and quinine sulfate as an external standard. This study demonstrates that when an appropriate and consistent procedure is used to standardize fluorescence measurements, the fluorescence per unit absorption exhibits surprisingly little variation for diverse waters. The maximum variability observed between all sites was 36% and within the western North Atlantic the variability was only 12%. Algorithms are presented for retrieval of the absorption coefficient of CDOM at 355 and 337 nm from shipboard or airborne measurements of the water-Raman-normalized fluorescence emission resulting from 355- and 337-nm excitation. JF - Limnology and Oceanography AU - Hoge, Frank E AU - Vodacek, Anthony AU - Blough, Neil V AD - National Aeronautics and Space Administration, Goddard Space Flight Center, Wallops Flight Facility, Wallops Island, Virginia 23337. Y1 - 1993/11// PY - 1993 DA - November 1993 SP - 1394 EP - 1402 PB - Association for the Sciences of Limnology and Oceanography VL - 38 IS - 7 SN - 0024-3590, 0024-3590 KW - Ecology Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Dissolved Solids KW - Variability KW - Quinine KW - Optical properties KW - Algorithms KW - Limnology KW - Absorption coefficient KW - Gulfs KW - Streams KW - AN, North Atlantic, Gulf Stream KW - Absorption KW - INE, USA, California, Monterey Bay KW - Marine KW - Fluorescence KW - dissolved organic matter KW - AN, North Atlantic KW - Coastal waters KW - Sulfate KW - ASW, Mexico Gulf KW - Ocean currents KW - Oceans KW - Dissolved organic matter KW - ASW, Mexico Gulf, Loop Current KW - Standards KW - AQ 00001:Water Resources and Supplies KW - Q1 08381:General KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808674023?accountid=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=Limnology+and+Oceanography&rft.atitle=Inherent+optical+properties+of+the+ocean%3A+Retrieval+of+the+absorption+coefficient+of+chromophoric+dissolved+organic+matter+from+fluorescence+measurements&rft.au=Hoge%2C+Frank+E%3BVodacek%2C+Anthony%3BBlough%2C+Neil+V&rft.aulast=Hoge&rft.aufirst=Frank&rft.date=1993-11-01&rft.volume=38&rft.issue=7&rft.spage=1394&rft.isbn=&rft.btitle=&rft.title=Limnology+and+Oceanography&rft.issn=00243590&rft_id=info:doi/10.4319%2Flo.1993.38.7.1394 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Ocean currents; Fluorescence; Optical properties; Dissolved organic matter; Absorption coefficient; Quinine; dissolved organic matter; Oceans; Algorithms; Coastal waters; Streams; Sulfate; Dissolved Solids; Variability; Absorption; Limnology; Standards; Gulfs; ASW, Mexico Gulf; AN, North Atlantic, Gulf Stream; INE, USA, California, Monterey Bay; ASW, Mexico Gulf, Loop Current; AN, North Atlantic; Marine DO - http://dx.doi.org/10.4319/lo.1993.38.7.1394 ER - TY - JOUR T1 - The protonema of Chara fragilis Desv.: regenerative formation, photomorphogenesis, and gravitropism. AN - 76371643; 11541284 AB - When exposed to constant white light for four weeks, isolated nodes of Chara fragilis Desv. regenerated side branches, rhizoids, and multicellular protonemata, the latter being similar to those germinated from oospores. When kept in darkness the nodes developed protonemata exclusively. These were single-celled, colourless, and tip-growing and, with the light microscope, they looked like rhizoids. Upon exposure to blue light, but not to red or far-red, the growth rates of the protonemata rapidly declined, the cell apices swelled, and the nucleus migrated acropetally. Within 24 h the cells went through the first of a series of divisions resulting in the formation of multicellular protonemata. When returned to darkness after a blue light pulse of 5 h the cell divisions proceeded normally, but the protonemata showed etiolated growth. While growth of the internode was drastically promoted, the development of the multicellular apex and the lateral initial were suppressed. Both uni- and multicellular etiolating protonemata showed negative gravitropism but were phototropically, insensitive. It is argued that the single-celled protonema is an organ specialized for the penetration of mud covering the nodes or oospores of Chara and thus serves to search for light, comparable to etiolated hypocotyls and stems in seedlings of higher plants. JF - Botanica acta : Berichte der Deutschen Botanischen Gesellschaft = journal of the German Botanical Society AU - Hodick, D AD - Botanisches Institut, Universitat Bonn, FRG. Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 388 EP - 393 VL - 106 IS - 5 SN - 0932-8629, 0932-8629 KW - Space life sciences KW - Infrared Rays KW - Photoperiod KW - Dose-Response Relationship, Radiation KW - Time Factors KW - Cell Division KW - Darkness KW - Chlorophyta -- cytology KW - Gravitropism -- radiation effects KW - Phototropism -- physiology KW - Gravitropism -- physiology KW - Chlorophyta -- growth & development KW - Light KW - Chlorophyta -- radiation effects KW - Phototropism -- radiation effects KW - Chlorophyta -- ultrastructure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76371643?accountid=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=Botanica+acta+%3A+Berichte+der+Deutschen+Botanischen+Gesellschaft+%3D+journal+of+the+German+Botanical+Society&rft.atitle=The+protonema+of+Chara+fragilis+Desv.%3A+regenerative+formation%2C+photomorphogenesis%2C+and+gravitropism.&rft.au=Hodick%2C+D&rft.aulast=Hodick&rft.aufirst=D&rft.date=1993-10-01&rft.volume=106&rft.issue=5&rft.spage=388&rft.isbn=&rft.btitle=&rft.title=Botanica+acta+%3A+Berichte+der+Deutschen+Botanischen+Gesellschaft+%3D+journal+of+the+German+Botanical+Society&rft.issn=09328629&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-12-13 N1 - Date created - 1998-12-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comments on "Bioprocessing in space" AN - 76362810; 11538000 AB - An analysis developed by Westgate et al. for the digestible energy of edible and inedible biomass, including hydrolysis and fermentation, is reexamined with state-of-the-art values for the harvest index of hydroponic crops. JF - Enzyme and microbial technology AU - Volk, T AD - Department of Applied Science, New York University, USA. Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 899 EP - 900 VL - 15 SN - 0141-0229, 0141-0229 KW - Waste Products KW - 0 KW - Space life sciences KW - NASA Program CELSS KW - NASA Discipline Number 61-10 KW - Non-NASA Center KW - NASA Discipline Life Support Systems KW - Life Support Systems KW - Hydroponics KW - Triticum KW - Solanum tuberosum KW - Ecological Systems, Closed KW - Biotechnology KW - Soybeans KW - Food Supply -- standards KW - Biomass KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76362810?accountid=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=Enzyme+and+microbial+technology&rft.atitle=Comments+on+%22Bioprocessing+in+space%22&rft.au=Volk%2C+T&rft.aulast=Volk&rft.aufirst=T&rft.date=1993-10-01&rft.volume=15&rft.issue=&rft.spage=899&rft.isbn=&rft.btitle=&rft.title=Enzyme+and+microbial+technology&rft.issn=01410229&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-13 N1 - Date created - 1995-06-13 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment On: Enzyme Microb Technol. 1992 Jan;14:76-9 [11540145] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Stabilization of pH in solid-matrix hydroponic systems. AN - 76361918; 11537992 AB - 2-[N-morpholino]ethanesulfonic acid (MES) buffer or Amberlite DP-1 (cation-exchange resin beads) were used to stabilize substrate pH of passive-wicking, solid-matrix hydroponic systems in which small canopies of Brassica napus L. (CrGC 5-2, genome : ACaacc) were grown to maturity. Two concentrations of MES (5 or 10 mM) were included in Hoagland 1 nutrient solution. Alternatively, resin beads were incorporated into the 2 vermiculite : 1 perlite (v/v) growth medium at 6% or 12% of total substrate volume. Both strategies stabilized pH without toxic side effects on plants. Average seed yield rates for all four pH stabilization treatments (13.3 to 16.9 g m-2 day-1) were about double that of the control (8.2 g m-2 day-1), for which there was no attempt to buffer substrate pH. Both the highest canopy seed yield rate (16.9 g m-2 day-1) and the highest shoot harvest index (19.5%) occurred with the 6% resin bead treatment, even though the 10 mM MES and 12% bead treatments maintained pH within the narrowest limits. The pH stabilization methods tested did not significantly affect seed oil and protein contents. JF - HortScience : a publication of the American Society for Horticultural Science AU - Frick, J AU - Mitchell, C A AD - Department of Horticulture, Purdue University, West Lafayette, IN 47907-1165, USA. Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 981 EP - 984 VL - 28 IS - 10 SN - 0018-5345, 0018-5345 KW - Alkanesulfonic Acids KW - 0 KW - Buffers KW - Cation Exchange Resins KW - Culture Media KW - Morpholines KW - Plant Oils KW - Plant Proteins KW - 2-(N-morpholino)ethanesulfonic acid KW - 2GNK67Q0C4 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Program NSCORT KW - Non-NASA Center KW - NASA Discipline Life Support Systems KW - Seeds -- chemistry KW - Plant Proteins -- analysis KW - Hydrogen-Ion Concentration KW - Plant Oils -- analysis KW - Capillary Action KW - Hydroponics -- methods KW - Brassica -- growth & development KW - Plant Roots -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76361918?accountid=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=HortScience+%3A+a+publication+of+the+American+Society+for+Horticultural+Science&rft.atitle=Stabilization+of+pH+in+solid-matrix+hydroponic+systems.&rft.au=Frick%2C+J%3BMitchell%2C+C+A&rft.aulast=Frick&rft.aufirst=J&rft.date=1993-10-01&rft.volume=28&rft.issue=10&rft.spage=981&rft.isbn=&rft.btitle=&rft.title=HortScience+%3A+a+publication+of+the+American+Society+for+Horticultural+Science&rft.issn=00185345&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-02 N1 - Date created - 1995-06-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Comparison of TOMS SO (sub 2) data from El Chichon & Mount Pinatubo eruptions AN - 52808057; 1996-066903 JF - Eos, Transactions, American Geophysical Union AU - Sprod, I E AU - Bluth, G J S AU - Krueger, A J AU - Walter, L S AU - Schnetzler, C C AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 132 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - sulfur dioxide KW - sulfuric acid KW - Luzon KW - Far East KW - contaminant plumes KW - optical spectra KW - atmosphere KW - El Chichon KW - satellite methods KW - spatial distribution KW - Mexico KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - eruptions KW - aerosols KW - spectra KW - Asia KW - inorganic acids KW - Chiapas Mexico 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/52808057?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Comparison+of+TOMS+SO+%28sub+2%29+data+from+El+Chichon+%26amp%3B+Mount+Pinatubo+eruptions&rft.au=Sprod%2C+I+E%3BBluth%2C+G+J+S%3BKrueger%2C+A+J%3BWalter%2C+L+S%3BSchnetzler%2C+C+C%3BAnonymous&rft.aulast=Sprod&rft.aufirst=I&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; Chiapas Mexico; contaminant plumes; El Chichon; eruptions; Far East; inorganic acids; Luzon; Mexico; Mount Pinatubo; optical spectra; Philippine Islands; satellite methods; spatial distribution; spectra; sulfur dioxide; sulfuric acid; volcanism ER - TY - JOUR T1 - Decay of Mount Pinatubo volcanic perturbation AN - 52806341; 1996-066905 JF - Eos, Transactions, American Geophysical Union AU - Goodman, J AU - Snetsinger, K G AU - Pueschel, R F AU - Verma, S AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 133 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - Luzon KW - sulfate ion KW - Far East KW - grain size KW - background level KW - size distribution KW - stratosphere KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - aerosols KW - Asia KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52806341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Decay+of+Mount+Pinatubo+volcanic+perturbation&rft.au=Goodman%2C+J%3BSnetsinger%2C+K+G%3BPueschel%2C+R+F%3BVerma%2C+S%3BAnonymous&rft.aulast=Goodman&rft.aufirst=J&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aerosols; Asia; background level; Far East; grain size; Luzon; Mount Pinatubo; Philippine Islands; size distribution; stratosphere; sulfate ion; volcanism ER - TY - JOUR T1 - Degradation of atmospheric halogenated methanes; I, Consumption of HCFCs and methyl bromide by soil methanotrophic bacteria AN - 52804223; 1996-066907 JF - Eos, Transactions, American Geophysical Union AU - Oremland, R S AU - Miller, L G AU - Blunden, P AU - Coulatkis, D AU - Culbertson, C W AU - Jahnke, L L AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 134 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - degradation KW - halogens KW - aliphatic hydrocarbons KW - hydrochlorofluorocarbons KW - bromide ion KW - enzymes KW - chlorofluorocarbons KW - HCFC-22 KW - HCFC-21 KW - halogenated hydrocarbons KW - CFC-11 KW - soils KW - organic materials KW - biodegradation KW - methane KW - atmosphere KW - alkanes KW - bromine KW - organic compounds KW - methyl bromide KW - biogenic processes KW - residence time KW - hydrocarbons KW - proteins KW - Methylococcus capsulatus KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52804223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Degradation+of+atmospheric+halogenated+methanes%3B+I%2C+Consumption+of+HCFCs+and+methyl+bromide+by+soil+methanotrophic+bacteria&rft.au=Oremland%2C+R+S%3BMiller%2C+L+G%3BBlunden%2C+P%3BCoulatkis%2C+D%3BCulbertson%2C+C+W%3BJahnke%2C+L+L%3BAnonymous&rft.aulast=Oremland&rft.aufirst=R&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=134&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; biodegradation; biogenic processes; bromide ion; bromine; CFC-11; chlorofluorocarbons; degradation; enzymes; halogenated hydrocarbons; halogens; HCFC-21; HCFC-22; hydrocarbons; hydrochlorofluorocarbons; methane; methyl bromide; Methylococcus capsulatus; organic compounds; organic materials; proteins; residence time; soils ER - TY - JOUR T1 - A simulation of the last glacial maximum climate using modern ocean heat transports in the NASA/GISS GCM AN - 51325817; 1995-046603 JF - Eos, Transactions, American Geophysical Union AU - Webb, R S AU - Rind, D AU - Healy, R AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 358 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - general circulation models KW - last glacial maximum KW - Quaternary KW - sea ice KW - global KW - glaciomarine environment KW - simulation KW - paleoclimatology KW - ice sheets KW - models KW - Cenozoic KW - marine environment KW - ice KW - glacial environment KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51325817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+simulation+of+the+last+glacial+maximum+climate+using+modern+ocean+heat+transports+in+the+NASA%2FGISS+GCM&rft.au=Webb%2C+R+S%3BRind%2C+D%3BHealy%2C+R%3BAnonymous&rft.aulast=Webb&rft.aufirst=R&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=358&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, fall meeting 1993 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Cenozoic; general circulation models; glacial environment; glacial geology; glaciomarine environment; global; ice; ice sheets; last glacial maximum; marine environment; models; paleoclimatology; Quaternary; sea ice; simulation ER - TY - JOUR T1 - Continental water recycling and H (sub 2) (super 18) O concentrations AN - 50564364; 2008-129148 JF - Geophysical Research Letters AU - Koster, Randal D AU - de Valpine, D Perry AU - Jouzel, Jean Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 2215 EP - 2218 PB - American Geophysical Union, Washington, DC VL - 20 IS - 20 SN - 0094-8276, 0094-8276 KW - water KW - hydrology KW - general circulation models KW - terrestrial environment KW - oxygen KW - isotopes KW - isotope ratios KW - global KW - global change KW - atmospheric precipitation KW - O-18/O-16 KW - stable isotopes KW - temperature KW - geochemical cycle KW - hydrologic cycle KW - O-18 KW - climate KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50564364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Continental+water+recycling+and+H+%28sub+2%29+%28super+18%29+O+concentrations&rft.au=Koster%2C+Randal+D%3Bde+Valpine%2C+D+Perry%3BJouzel%2C+Jean&rft.aulast=Koster&rft.aufirst=Randal&rft.date=1993-10-01&rft.volume=20&rft.issue=20&rft.spage=2215&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL01781 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; climate; general circulation models; geochemical cycle; global; global change; hydrologic cycle; hydrology; isotope ratios; isotopes; O-18; O-18/O-16; oxygen; stable isotopes; temperature; terrestrial environment; water DO - http://dx.doi.org/10.1029/93GL01781 ER - TY - JOUR T1 - Pigmenting agents in Martian soils; inferences from spectral, Moessbauer, and magnetic properties of nanophase and other iron oxides in Hawaiian palagonitic soil PN-9 AN - 50342930; 1994-006106 AB - Tephra sample PN-9 has spectroscopic properties similar to Martian bright regions. The sample has a Hawaiitic composition with alkali (and presumed SiO (sub 2) ) loss due to leaching by meteoric water during palagonitization. Nanophase ferric oxide (np-Ox) particles (hematite or ferrihydrite and hematite) account for these spectral similarities. The np-Ox particles appear to occur in a hydrated aluminosilicate matrix; no phyllosilicates were detected, but titanomagnetite, olivine, pyroxene and glass occur. It is suggested that np-Ox is the primary pigment of the bright soils and dust on Mars. JF - Geochimica et Cosmochimica Acta AU - Morris, Richard V AU - Golden, D C AU - Bell, James F, III AU - Lauer, Howard V, Jr AU - Adams, John B AU - Burns, Roger G AU - Banin, A Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 4597 EP - 4609 PB - Pergamon, Oxford VL - 57 IS - 19 SN - 0016-7037, 0016-7037 KW - soils KW - organic materials KW - Martian bright regions KW - iron oxides KW - pigments KW - Viking Program KW - Mars KW - magnetic properties KW - terrestrial planets KW - planets KW - organic compounds KW - oxides KW - spectra KW - chemical composition KW - reflectance KW - Mossbauer spectra KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50342930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Pigmenting+agents+in+Martian+soils%3B+inferences+from+spectral%2C+Moessbauer%2C+and+magnetic+properties+of+nanophase+and+other+iron+oxides+in+Hawaiian+palagonitic+soil+PN-9&rft.au=Morris%2C+Richard+V%3BGolden%2C+D+C%3BBell%2C+James+F%2C+III%3BLauer%2C+Howard+V%2C+Jr%3BAdams%2C+John+B%3BBurns%2C+Roger+G%3BBanin%2C+A&rft.aulast=Morris&rft.aufirst=Richard&rft.date=1993-10-01&rft.volume=57&rft.issue=19&rft.spage=4597&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990185-Y L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - MSATT workshop on Chemical weathering on Mars N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 61 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical composition; iron oxides; magnetic properties; Mars; Martian bright regions; Mossbauer spectra; organic compounds; organic materials; oxides; pigments; planets; reflectance; soils; spectra; terrestrial planets; Viking Program DO - http://dx.doi.org/10.1016/0016-7037(93)90185-Y ER - TY - JOUR T1 - Collisions of small comets and Jupiter AN - 50341586; 1995-022379 JF - Eos, Transactions, American Geophysical Union AU - Zahnle, K AU - Mac Low, M M AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 390 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - numerical models KW - Jupiter KW - Shoemaker-Levy 9 Comet KW - prediction KW - impacts KW - giant planets KW - models KW - planets KW - luminescence KW - comets KW - velocity KW - terrestrial comparison KW - outer planets KW - energy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50341586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Collisions+of+small+comets+and+Jupiter&rft.au=Zahnle%2C+K%3BMac+Low%2C+M+M%3BAnonymous&rft.aulast=Zahnle&rft.aufirst=K&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=390&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - comets; energy; giant planets; impacts; Jupiter; luminescence; models; numerical models; outer planets; planets; prediction; Shoemaker-Levy 9 Comet; terrestrial comparison; velocity ER - TY - JOUR T1 - Submicroscopic lamellar structures in synthetic REE-doped clinopyroxene AN - 50340857; 1994-027409 JF - Abstracts with Programs - Geological Society of America AU - Marino, Troy A AU - McKay, Gordon A AU - Treiman, Allan H AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 216 EP - 217 PB - Geological Society of America (GSA), Boulder, CO VL - 25 IS - 6 SN - 0016-7592, 0016-7592 KW - silicates KW - pigeonite KW - wollastonite KW - patterns KW - augite KW - Mars KW - solid solution KW - wollastonite group KW - lamellae KW - X-ray spectra KW - TEM data KW - terrestrial planets KW - planets KW - partitioning KW - pyroxene group KW - clinopyroxene KW - metals KW - spectra KW - rare earths KW - synthetic materials KW - chemical fractionation KW - chain silicates KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50340857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Submicroscopic+lamellar+structures+in+synthetic+REE-doped+clinopyroxene&rft.au=Marino%2C+Troy+A%3BMcKay%2C+Gordon+A%3BTreiman%2C+Allan+H%3BAnonymous&rft.aulast=Marino&rft.aufirst=Troy&rft.date=1993-10-01&rft.volume=25&rft.issue=6&rft.spage=216&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, 1993 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - augite; chain silicates; chemical fractionation; clinopyroxene; lamellae; Mars; metals; partitioning; patterns; pigeonite; planets; pyroxene group; rare earths; silicates; solid solution; spectra; synthetic materials; TEM data; terrestrial planets; wollastonite; wollastonite group; X-ray spectra ER - TY - JOUR T1 - Prebiotic ammonia from reduction of nitrite by iron (II) on the early Earth AN - 50305231; 1993-041679 AB - Fe(II) was evidently present in the early oceans at much higher concentrations than today, and the oxidation of Fe(II) to Fe(III) provides a possible means of reducing nitrites and nitrates to NH (sub 3) . This possibility is examined experimentally simulating prebiotic sea-water conditions. The results indicate that the reduction of Fe(II) of nitrites and nitrates to NH (sub 3) could have supplied reduced N (sub 2) on the early Earth, provided that the ocean pH was > 7.3 and T were > approx 25 degrees C. JF - Nature (London) AU - Summers, David P AU - Sherwood, Chang Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 630 EP - 633 PB - Macmillan Journals, London VL - 365 IS - 6447 SN - 0028-0836, 0028-0836 KW - experimental studies KW - Precambrian KW - photochemistry KW - paleo-oceanography KW - Paleoarchean KW - aqueous solutions KW - simulation KW - life origin KW - iron KW - ferrous iron KW - chemical reactions KW - metals KW - Archean KW - reduction KW - geochemistry KW - nitrite ion KW - ammonia compound KW - 12:Stratigraphy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50305231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Prebiotic+ammonia+from+reduction+of+nitrite+by+iron+%28II%29+on+the+early+Earth&rft.au=Summers%2C+David+P%3BSherwood%2C+Chang&rft.aulast=Summers&rft.aufirst=David&rft.date=1993-10-01&rft.volume=365&rft.issue=6447&rft.spage=630&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2F365630a0 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 - 1993-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - ammonia compound; aqueous solutions; Archean; chemical reactions; experimental studies; ferrous iron; geochemistry; iron; life origin; metals; nitrite ion; paleo-oceanography; Paleoarchean; photochemistry; Precambrian; reduction; simulation DO - http://dx.doi.org/10.1038/365630a0 ER - TY - JOUR T1 - K-Ca chronology of lunar granites AN - 50299913; 1994-005558 AB - K-Ca isotopic age determinations are presented of three lunar granites, four mare basalts, norite, anorthosite, KREEP basalt and seven meteorites. The K-Ca mineral isochron for a lunar granite clast gives an age of 4060 +- 700 m.y. and an initial (super 40) Ca/ (super 44) Ca ratio of 47.141 +- 0.010 normalized to (super 42) Ca/ (super 44) Ca 0.31221. This K-Ca isotopic age agrees with the Rb-Sr and Sm-Nd ages and is slightly older than the average (super 39) Ar/ (super 40) Ar and U-Pb zircon ages. An average initial (super 40) Ca/ (super 44) Ca ratio of 47.136 +- 0.002 at 2 sigma (sub m) and +- 0.006 (2 sigma (sub p) ) was obtained for the other lunar and meteorite samples; if this is the lunar initial (super 40) Ca/ (super 44) Ca ratio, then a 10-20 x fractionation for K/Ca during granite formation is calculated for a two-stage model. JF - Geochimica et Cosmochimica Acta AU - Shih, C Y AU - Nyquist, L E AU - Wiesmann, H Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 4827 EP - 4841 PB - Pergamon, Oxford VL - 57 IS - 19 SN - 0016-7037, 0016-7037 KW - calcium KW - alkaline earth metals KW - Ca-40 KW - Moon KW - isotopes KW - isotope ratios KW - igneous rocks KW - granites KW - alkali metals KW - K-40 KW - stable isotopes KW - argon KW - Ar-40/Ar-39 KW - intrusions KW - radioactive isotopes KW - plutonic rocks KW - chronology KW - noble gases KW - metals KW - potassium KW - fractionation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50299913?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=K-Ca+chronology+of+lunar+granites&rft.au=Shih%2C+C+Y%3BNyquist%2C+L+E%3BWiesmann%2C+H&rft.aulast=Shih&rft.aufirst=C&rft.date=1993-10-01&rft.volume=57&rft.issue=19&rft.spage=4827&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990202-8 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 - 1994-01-01 N1 - Number of references - 75 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; Ar-40/Ar-39; argon; Ca-40; calcium; chronology; fractionation; granites; igneous rocks; intrusions; isotope ratios; isotopes; K-40; metals; Moon; noble gases; plutonic rocks; potassium; radioactive isotopes; stable isotopes DO - http://dx.doi.org/10.1016/0016-7037(93)90202-8 ER - TY - JOUR T1 - NASA Electronic Still Camera (ESC) System used to image the Kamchatka volcanoes from the space shuttle AN - 50298977; 1994-003942 JF - International Journal of Remote Sensing AU - Lulla, Kamlesh AU - Holland, S Douglas Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 2745 EP - 2746 PB - Taylor & Francis, London VL - 14 IS - 15 SN - 0143-1161, 0143-1161 KW - Russian Pacific region KW - Kamchatka Peninsula KW - data acquisition KW - data processing KW - space photography KW - Russian Federation KW - volcanology KW - Commonwealth of Independent States KW - volcanoes KW - Asia KW - instruments KW - remote sensing KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50298977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Remote+Sensing&rft.atitle=NASA+Electronic+Still+Camera+%28ESC%29+System+used+to+image+the+Kamchatka+volcanoes+from+the+space+shuttle&rft.au=Lulla%2C+Kamlesh%3BHolland%2C+S+Douglas&rft.aulast=Lulla&rft.aufirst=Kamlesh&rft.date=1993-10-01&rft.volume=14&rft.issue=15&rft.spage=2745&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 2 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Asia; Commonwealth of Independent States; data acquisition; data processing; instruments; Kamchatka Peninsula; remote sensing; Russian Federation; Russian Pacific region; space photography; volcanoes; volcanology ER - TY - JOUR T1 - The Strecker synthesis as a source of amino acids in carbonaceous chondrites; deuterium retention during synthesis AN - 50294122; 1994-005551 AB - Deuterium-enriched amino acids occur in the Murchison carbonaceous chondrite. To investigate D retention during amino acid synthesis under mild conditions which might have occurred on the parent body, Strecker reactions were performed at 22 degrees C and pH 9.5 using deuterated acetaldehyde, acetone and formaldehyde. The results show that amino acids so synthesized retain >= 50% of the isotopic label. A parent body Strecker synthesis from D-enriched interstellar aldehyde and ketone precursors is thus indicated by the highly deuterated amino acids in the Murchison meteorite. JF - Geochimica et Cosmochimica Acta AU - Lerner, N R AU - Peterson, E AU - Chang, S Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 4713 EP - 4723 PB - Pergamon, Oxford VL - 57 IS - 19 SN - 0016-7037, 0016-7037 KW - organic materials KW - Strecker synthesis KW - stony meteorites KW - isotopes KW - carbonaceous chondrites KW - stable isotopes KW - Murchison Meteorite KW - meteorites KW - organic compounds KW - organic acids KW - hydrogen KW - amino acids KW - deuterium KW - CM chondrites KW - chondrites KW - synthetic materials KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50294122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Strecker+synthesis+as+a+source+of+amino+acids+in+carbonaceous+chondrites%3B+deuterium+retention+during+synthesis&rft.au=Lerner%2C+N+R%3BPeterson%2C+E%3BChang%2C+S&rft.aulast=Lerner&rft.aufirst=N&rft.date=1993-10-01&rft.volume=57&rft.issue=19&rft.spage=4713&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990195-3 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 - 1994-01-01 N1 - Number of references - 41 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - amino acids; carbonaceous chondrites; chondrites; CM chondrites; deuterium; hydrogen; isotopes; meteorites; Murchison Meteorite; organic acids; organic compounds; organic materials; stable isotopes; stony meteorites; Strecker synthesis; synthetic materials DO - http://dx.doi.org/10.1016/0016-7037(93)90195-3 ER - TY - JOUR T1 - Simultaneous use of AVHRR and TOMS for remote sensing of volcanic clouds AN - 50293551; 1994-003900 JF - Eos, Transactions, American Geophysical Union AU - Hossli, R AU - Rose, W I AU - Schneider, D J AU - Sprod, I AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 74 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - plumes KW - Luzon KW - Far East KW - Aisen del General Carlos Ibanez del Campo Chile KW - Crater Peak KW - Chile KW - AVHRR KW - infrared methods KW - Mount Spurr KW - Mount Pinatubo KW - volcanic ash KW - Asia KW - clouds KW - sulfur dioxide KW - high-resolution methods KW - TOMS KW - geophysical methods KW - atmosphere KW - satellite methods KW - volcanology KW - Southern Alaska KW - South America KW - Philippine Islands KW - eruptions KW - Cerro Hudson KW - volcanoes KW - Alaska KW - wind transport KW - remote sensing KW - airborne methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50293551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Simultaneous+use+of+AVHRR+and+TOMS+for+remote+sensing+of+volcanic+clouds&rft.au=Hossli%2C+R%3BRose%2C+W+I%3BSchneider%2C+D+J%3BSprod%2C+I%3BAnonymous&rft.aulast=Hossli&rft.aufirst=R&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - airborne methods; Aisen del General Carlos Ibanez del Campo Chile; Alaska; Asia; atmosphere; AVHRR; Cerro Hudson; Chile; clouds; Crater Peak; eruptions; Far East; geophysical methods; high-resolution methods; infrared methods; Luzon; Mount Pinatubo; Mount Spurr; Philippine Islands; plumes; remote sensing; satellite methods; South America; Southern Alaska; sulfur dioxide; TOMS; United States; volcanic ash; volcanoes; volcanology; wind transport ER - TY - JOUR T1 - Composition and maturity of Apollo 16 regolith core 60013/14 AN - 50293105; 1994-005557 AB - Serial samples at 0.5 cm intervals were analysed for 25 lithophile and siderophile elements, Fe degrees concentration and surface maturity parameter I (sub s) /FeO. The data suggest that if the top 0.5 m of regolith could be removed from the Apollo 16 site, there would be a significant increase in variation of the composition and maturity of grab samples taken at approx 50 m lateral distance at the new surface. Near the landing area 0.5 m below the surface, the regolith is more anorthositic and less mature than at the surface, and chemically dissimilar to the more mafic feldspathic breccias of the ejecta from North Ray crater, 5 km to the N. The ferroan anorthosite may have been emplaced by a single impact. The anorthosite component of three cores is nearly monomineralic (approx 99% plagioclase) and less mafic than surface samples. Their significance is discussed. JF - Geochimica et Cosmochimica Acta AU - Korotev, Randy L AU - Morris, Richard V Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 4813 EP - 4826 PB - Pergamon, Oxford VL - 57 IS - 19 SN - 0016-7037, 0016-7037 KW - North Ray Crater KW - Moon KW - Apollo Program KW - chemical composition KW - regolith KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50293105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Composition+and+maturity+of+Apollo+16+regolith+core+60013%2F14&rft.au=Korotev%2C+Randy+L%3BMorris%2C+Richard+V&rft.aulast=Korotev&rft.aufirst=Randy&rft.date=1993-10-01&rft.volume=57&rft.issue=19&rft.spage=4813&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990201-7 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 - 1994-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Apollo 16; Apollo Program; chemical composition; Moon; North Ray Crater; regolith DO - http://dx.doi.org/10.1016/0016-7037(93)90201-7 ER - TY - JOUR T1 - The parent magma of the Nakhla (SNC) Meteorite, inferred from magmatic inclusions AN - 50290887; 1994-005554 AB - Samples of the parent body of this meteorite were trapped as magmatic inclusions in its cumulus olivine crystals. These inclusions consist of augite rich in Ti and Al, SiO (sub 2) -rich glass, Fe oxides, ilmenite, apatite and rare amphibole. Textures indicate a trapped silicate liquid. The estimated composition of magma represented by these inclusions is SiO (sub 2) 50.2, TiO (sub 2) 1.0, Al (sub 2) O (sub 3) 8.6, Cr (sub 2) O (sub 3) 0.1, FeO 19.1, MnO 0.4, MgO 4.0, CaO 11.9, Na (sub 2) O 1.2, K (sub 2) O 2.8, P (sub 2) O (sub 5) 0.7%. Based on this estimated composition of the meteorite's parent magma, its geological history is discussed. JF - Geochimica et Cosmochimica Acta AU - Treiman, Allan H Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 4753 EP - 4767 PB - Pergamon, Oxford VL - 57 IS - 19 SN - 0016-7037, 0016-7037 KW - silicates KW - nakhlite KW - stony meteorites KW - Martian meteorites KW - igneous rocks KW - augite KW - olivine group KW - Nakhla Meteorite KW - achondrites KW - SNC Meteorites KW - nesosilicates KW - meteorites KW - pyroxene group KW - clinopyroxene KW - titanium KW - metals KW - magmas KW - aluminum KW - olivine KW - inclusions KW - orthosilicates KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50290887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+parent+magma+of+the+Nakhla+%28SNC%29+Meteorite%2C+inferred+from+magmatic+inclusions&rft.au=Treiman%2C+Allan+H&rft.aulast=Treiman&rft.aufirst=Allan&rft.date=1993-10-01&rft.volume=57&rft.issue=19&rft.spage=4753&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990198-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - achondrites; aluminum; augite; chain silicates; clinopyroxene; igneous rocks; inclusions; magmas; Martian meteorites; metals; meteorites; Nakhla Meteorite; nakhlite; nesosilicates; olivine; olivine group; orthosilicates; pyroxene group; silicates; SNC Meteorites; stony meteorites; titanium DO - http://dx.doi.org/10.1016/0016-7037(93)90198-6 ER - TY - JOUR T1 - Distributional controls and origin of microstructure of laminated microbial mats at Guerrero Negro, Baja, Mexico AN - 50268185; 1994-012796 JF - Abstracts with Programs - Geological Society of America AU - Farmer, Jack D AU - Des Marais, David J AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 294 PB - Geological Society of America (GSA), Boulder, CO VL - 25 IS - 6 SN - 0016-7592, 0016-7592 KW - erosion KW - Guerrero Negro KW - thin sections KW - detritus KW - algae KW - Holocene KW - Cenozoic KW - controls KW - diatoms KW - Baja California KW - algal mats KW - sedimentation rates KW - sediments KW - sedimentary structures KW - stratigraphy KW - Plantae KW - Quaternary KW - Precambrian KW - laminations KW - biogenic structures KW - sedimentation KW - distribution KW - algal structures KW - morphology KW - planar bedding structures KW - Mexico KW - subtidal environment KW - coastal environment KW - seasonal variations KW - microfossils KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50268185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Distributional+controls+and+origin+of+microstructure+of+laminated+microbial+mats+at+Guerrero+Negro%2C+Baja%2C+Mexico&rft.au=Farmer%2C+Jack+D%3BDes+Marais%2C+David+J%3BAnonymous&rft.aulast=Farmer&rft.aufirst=Jack&rft.date=1993-10-01&rft.volume=25&rft.issue=6&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1993 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - algae; algal mats; algal structures; Baja California; biogenic structures; Cenozoic; coastal environment; controls; detritus; diatoms; distribution; erosion; Guerrero Negro; Holocene; laminations; Mexico; microfossils; morphology; planar bedding structures; Plantae; Precambrian; Quaternary; seasonal variations; sedimentary structures; sedimentation; sedimentation rates; sediments; stratigraphy; subtidal environment; thin sections ER - TY - JOUR T1 - Biogeochemistry of microbial mats at Guerrero Negro, Baja California, Mexico; implications for stromatolites AN - 50268034; 1994-012797 JF - Abstracts with Programs - Geological Society of America AU - Des Marais, David J AU - Farmer, Jack D AU - Canfield, Donald E AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 294 PB - Geological Society of America (GSA), Boulder, CO VL - 25 IS - 6 SN - 0016-7592, 0016-7592 KW - organic materials KW - Lyngbya KW - oxygen KW - biogenic structures KW - biochemistry KW - Guerrero Negro KW - salinity KW - geochemical cycle KW - algal structures KW - organic compounds KW - Mexico KW - Baja California KW - subtidal environment KW - algal mats KW - precipitation KW - carbon KW - sulfur KW - coastal environment KW - Microcoleus KW - sedimentary structures KW - species diversity KW - pH KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50268034?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Biogeochemistry+of+microbial+mats+at+Guerrero+Negro%2C+Baja+California%2C+Mexico%3B+implications+for+stromatolites&rft.au=Des+Marais%2C+David+J%3BFarmer%2C+Jack+D%3BCanfield%2C+Donald+E%3BAnonymous&rft.aulast=Des+Marais&rft.aufirst=David&rft.date=1993-10-01&rft.volume=25&rft.issue=6&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1993 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - algal mats; algal structures; Baja California; biochemistry; biogenic structures; carbon; coastal environment; geochemical cycle; Guerrero Negro; Lyngbya; Mexico; Microcoleus; organic compounds; organic materials; oxygen; pH; precipitation; salinity; sedimentary structures; species diversity; subtidal environment; sulfur ER - TY - JOUR T1 - Passive microwave remote sensing study of the onset of melt in the central Arctic AN - 50266079; 1994-023853 JF - Abstracts with Programs - Geological Society of America AU - Balser, Richard A AU - Cavalieri, Donald J AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 106 PB - Geological Society of America (GSA), Boulder, CO VL - 25 IS - 6 SN - 0016-7592, 0016-7592 KW - hydrology KW - patterns KW - monitoring KW - central Arctic Ocean KW - time variations KW - atmosphere KW - variations KW - temperature KW - models KW - microwave methods KW - melting KW - circulation KW - ice KW - future KW - Arctic Ocean KW - climate KW - remote sensing KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50266079?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Passive+microwave+remote+sensing+study+of+the+onset+of+melt+in+the+central+Arctic&rft.au=Balser%2C+Richard+A%3BCavalieri%2C+Donald+J%3BAnonymous&rft.aulast=Balser&rft.aufirst=Richard&rft.date=1993-10-01&rft.volume=25&rft.issue=6&rft.spage=106&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, 1993 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Arctic Ocean; atmosphere; central Arctic Ocean; circulation; climate; future; hydrology; ice; melting; microwave methods; models; monitoring; patterns; remote sensing; temperature; time variations; variations ER - TY - JOUR T1 - Prebiotic organic synthesis in planetary environments AN - 50256540; 1994-027558 JF - Abstracts with Programs - Geological Society of America AU - Chang, Sherwood AU - Des Marais, David J AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 154 PB - Geological Society of America (GSA), Boulder, CO VL - 25 IS - 6 SN - 0016-7592, 0016-7592 KW - organic materials KW - Precambrian KW - clastic sediments KW - solutes KW - atmosphere KW - impacts KW - evolution KW - gases KW - models KW - organic compounds KW - geothermal systems KW - dust KW - sediments KW - aerosols KW - Archean KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50256540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Prebiotic+organic+synthesis+in+planetary+environments&rft.au=Chang%2C+Sherwood%3BDes+Marais%2C+David+J%3BAnonymous&rft.aulast=Chang&rft.aufirst=Sherwood&rft.date=1993-10-01&rft.volume=25&rft.issue=6&rft.spage=154&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, 1993 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aerosols; Archean; atmosphere; clastic sediments; dust; evolution; gases; geothermal systems; impacts; models; organic compounds; organic materials; Precambrian; sediments; solutes ER - TY - JOUR T1 - A study of the variations in global surface temperature following major volcanic eruptions using a 1-D radiative convection model AN - 50256510; 1994-027793 JF - Eos, Transactions, American Geophysical Union AU - Chiou, E W AU - McCormick, M P AU - Chu, W P AU - Yue, G K AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 115 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - Mount Agung KW - Luzon KW - Far East KW - Bali KW - global KW - Indonesia KW - El Chichon KW - convection KW - explosive eruptions KW - temperature KW - Santa Maria KW - models KW - Mexico KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - radiative convection model KW - Lesser Sunda Islands KW - Asia KW - Chiapas Mexico KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50256510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+study+of+the+variations+in+global+surface+temperature+following+major+volcanic+eruptions+using+a+1-D+radiative+convection+model&rft.au=Chiou%2C+E+W%3BMcCormick%2C+M+P%3BChu%2C+W+P%3BYue%2C+G+K%3BAnonymous&rft.aulast=Chiou&rft.aufirst=E&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; Bali; Chiapas Mexico; convection; El Chichon; explosive eruptions; Far East; global; Indonesia; Lesser Sunda Islands; Luzon; Mexico; models; Mount Agung; Mount Pinatubo; Philippine Islands; radiative convection model; Santa Maria; temperature; volcanism ER - TY - JOUR T1 - Tectonic settings and volcano-climate effects AN - 50256210; 1994-027776 JF - Eos, Transactions, American Geophysical Union AU - Krueger, A J AU - Walter, L AU - Bluth, G AU - Schnetzler, C AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 105 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - sulfur dioxide KW - Luzon KW - Far East KW - subduction zones KW - rift zones KW - El Chichon KW - volcanology KW - Mexico KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - eruptions KW - climate effects KW - Asia KW - Chiapas Mexico KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50256210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Tectonic+settings+and+volcano-climate+effects&rft.au=Krueger%2C+A+J%3BWalter%2C+L%3BBluth%2C+G%3BSchnetzler%2C+C%3BAnonymous&rft.aulast=Krueger&rft.aufirst=A&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; Chiapas Mexico; climate effects; El Chichon; eruptions; Far East; Luzon; Mexico; Mount Pinatubo; Philippine Islands; rift zones; subduction zones; sulfur dioxide; volcanism; volcanology ER - TY - JOUR T1 - Solar activity as a greenhouse agent AN - 50249026; 1994-027777 JF - Eos, Transactions, American Geophysical Union AU - Schatten, K H AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 105 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - models KW - controls KW - global KW - climate effects KW - atmosphere KW - global change KW - greenhouse effect KW - temperature KW - solar activity KW - global warming KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50249026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Solar+activity+as+a+greenhouse+agent&rft.au=Schatten%2C+K+H%3BAnonymous&rft.aulast=Schatten&rft.aufirst=K&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; climate effects; controls; global; global change; global warming; greenhouse effect; models; solar activity; temperature ER - TY - JOUR T1 - Nature and origin of the Rio Cuarto crater field, Argentina AN - 50248632; 1994-027440 JF - Abstracts with Programs - Geological Society of America AU - Schultz, P H AU - Grant, J A AU - Collins, W AU - Bunch, T A AU - Koeberl, C AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 223 PB - Geological Society of America (GSA), Boulder, CO VL - 25 IS - 6 SN - 0016-7592, 0016-7592 KW - volcanic rocks KW - impact features KW - glasses KW - igneous rocks KW - clasts KW - metamorphism KW - melts KW - titanomagnetite KW - temperature KW - Pampas KW - South America KW - major elements KW - Argentina KW - oxides KW - Rio Cuarto crater field KW - zoning KW - shock metamorphism KW - high temperature KW - spherules KW - P-T conditions KW - magnetite KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50248632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Nature+and+origin+of+the+Rio+Cuarto+crater+field%2C+Argentina&rft.au=Schultz%2C+P+H%3BGrant%2C+J+A%3BCollins%2C+W%3BBunch%2C+T+A%3BKoeberl%2C+C%3BAnonymous&rft.aulast=Schultz&rft.aufirst=P&rft.date=1993-10-01&rft.volume=25&rft.issue=6&rft.spage=223&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, 1993 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Argentina; clasts; glasses; high temperature; igneous rocks; impact features; magnetite; major elements; melts; metamorphism; oxides; P-T conditions; Pampas; Rio Cuarto crater field; shock metamorphism; South America; spherules; temperature; titanomagnetite; volcanic rocks; zoning ER - TY - JOUR T1 - Nonsensical segregation; core formation warnings from the eucrite parent body AN - 50203474; 1994-053330 JF - Eos, Transactions, American Geophysical Union AU - Jones, J H AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 654 EP - 655 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - segregation KW - migration KW - stony meteorites KW - partial melting KW - fluid phase KW - crystal growth KW - siderophile elements KW - achondrites KW - lithophile elements KW - meteorites KW - melting KW - metals KW - magmas KW - eucrite KW - crystallization KW - core KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50203474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Nonsensical+segregation%3B+core+formation+warnings+from+the+eucrite+parent+body&rft.au=Jones%2C+J+H%3BAnonymous&rft.aulast=Jones&rft.aufirst=J&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=654&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 7 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - achondrites; core; crystal growth; crystallization; eucrite; fluid phase; lithophile elements; magmas; melting; metals; meteorites; migration; partial melting; segregation; siderophile elements; silicates; stony meteorites ER - TY - JOUR T1 - Remote sensing of Pinatubo lahars using space shuttle photographs AN - 50193637; 1995-008294 JF - Eos, Transactions, American Geophysical Union AU - Evans, C A AU - Pitts, D E AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 672 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - Luzon KW - imagery KW - Far East KW - lahars KW - drainage patterns KW - space photography KW - mapping KW - satellite methods KW - Mount Pinatubo KW - Philippine Islands KW - mass movements KW - Asia KW - image enhancement KW - remote sensing KW - digitization KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50193637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Remote+sensing+of+Pinatubo+lahars+using+space+shuttle+photographs&rft.au=Evans%2C+C+A%3BPitts%2C+D+E%3BAnonymous&rft.aulast=Evans&rft.aufirst=C&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=672&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; digitization; drainage patterns; Far East; image enhancement; imagery; lahars; Luzon; mapping; mass movements; Mount Pinatubo; Philippine Islands; remote sensing; satellite methods; space photography ER - TY - JOUR T1 - Fractal geometry of individual river channels and its computer simulation AN - 50181625; 1994-032475 AB - A new method for analyzing the self-similarity and self-affinity of single-thread channels is proposed. It permits the determination of the fractal scaling exponents, of the characteristic scales, and the evaluation of the degree of anisotropy for self-similar fractal lines. Based upon the application of this method to the Dniester and Pruth rivers we established the self-similarity of the river pattern on small scales and the self-affinity on large scales. For these rivers we obtained the fractal scaling exponents, the characteristic scales, and the anisotropy parameters. A computer model has been developed which simulates river patterns whose fractal properties are close to the properties of natural objects. A generalized model of fractal behavior of natural rivers is proposed. On the basis of self-affinity of natural and simulated rivers on large scales, a hypothesis has been formulated which explains the violation of the dimension principle in the well-known relation between the river length and the catchment area. Copyright 1993 by the American Geophysical Union. JF - Water Resources Research AU - Nikora, Vladimir I AU - Sapozhnikov, Victor B AU - Noever, David A Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 3561 EP - 3568 PB - American Geophysical Union, Washington, DC VL - 29 IS - 10 SN - 0043-1397, 0043-1397 KW - hydrology KW - surface water KW - drainage patterns KW - data processing KW - channels KW - Europe KW - rivers KW - simulation KW - Prut River KW - models KW - computer programs KW - Commonwealth of Independent States KW - channel geometry KW - fluvial features KW - drainage basins KW - fractals KW - Dniester River KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Fractal+geometry+of+individual+river+channels+and+its+computer+simulation&rft.au=Nikora%2C+Vladimir+I%3BSapozhnikov%2C+Victor+B%3BNoever%2C+David+A&rft.aulast=Nikora&rft.aufirst=Vladimir&rft.date=1993-10-01&rft.volume=29&rft.issue=10&rft.spage=3561&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F93WR00978 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 14 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - channel geometry; channels; Commonwealth of Independent States; computer programs; data processing; Dniester River; drainage basins; drainage patterns; Europe; fluvial features; fractals; hydrology; models; Prut River; rivers; simulation; surface water DO - http://dx.doi.org/10.1029/93WR00978 ER - TY - JOUR T1 - Assumptions about the presence of natural glasses on Mars AN - 50179907; 1994-006043 AB - Natural glasses occur not only on Earth but also in lunar rocks and in some meteorites. On geological grounds, natural glasses could be expected on the surface of Mars and their presence would have important implications for the weathering and alteration of the near-surface layer. Ultramafic and mafic magmatism rich in iron and some volatiles appears to have been important on Mars as has been impact cratering, volcanism, and possibly hydrothermal alteration. Available data indicate that we can presume the past or present existence of volcanic basaltic glasses, impact glasses formed by thermal fusion of meteorite-impact targets, and diaplectic (mainly maskelynite) glasses. Conditions appear unsuitable for the formation of tektites on the Martian surface, and the production of measurable amounts of fulgurite or combustion glass seems improbable. Prospects for the remote and in situ identification of Martian glasses and their subsequent weathering products are discussed and include orbital reflectance and thermal emission spectroscopic measurements and Moessbauer spectroscopy from a surface lander. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Bouska, Vladimir AU - Bell, James F, III Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 18 EP - 18,725 PB - American Geophysical Union, Washington, DC VL - 98 IS - E10 SN - 0148-0227, 0148-0227 KW - volcanic rocks KW - glasses KW - igneous rocks KW - mafic composition KW - Mars KW - Mossbauer spectroscopy KW - possibilities KW - meteorites KW - metamorphic rocks KW - thermal emission KW - interplanetary comparison KW - applications KW - basaltic composition KW - fulgurite KW - impacts KW - weathering KW - emission spectroscopy KW - terrestrial planets KW - planets KW - volcanic glass KW - photogeology KW - identification KW - terrestrial comparison KW - spectroscopy KW - reflectance KW - tektites KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50179907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Assumptions+about+the+presence+of+natural+glasses+on+Mars&rft.au=Bouska%2C+Vladimir%3BBell%2C+James+F%2C+III&rft.aulast=Bouska&rft.aufirst=Vladimir&rft.date=1993-10-01&rft.volume=98&rft.issue=E10&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE01959 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 79 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; basaltic composition; emission spectroscopy; fulgurite; glasses; identification; igneous rocks; impacts; interplanetary comparison; mafic composition; Mars; metamorphic rocks; meteorites; Mossbauer spectroscopy; photogeology; planets; possibilities; reflectance; spectroscopy; tektites; terrestrial comparison; terrestrial planets; thermal emission; volcanic glass; volcanic rocks; weathering DO - http://dx.doi.org/10.1029/93JE01959 ER - TY - JOUR T1 - The poleward dispersal of Mount Pinatubo volcanic aerosol AN - 50177952; 1994-024283 AB - Using the SAGE II 1-mu m stratospheric aerosol extinction ratio observations, the dispersal of Mount Pinatubo aerosol within two transport regimes during the first 10 months after the eruption is displayed in meridional cross sections. Maximum aerosol extinction ratio values were contained in a tropical reservoir bounded by strong gradients in the subtropics. The detrainment of aerosol from the equatorial reservoir occurred in episodic synoptic scale events and two examples are presented: (1) transport into the boreal summer hemisphere in a lower regime just above the tropopause associated with upwardly decaying tropospheric disturbances and (2) dispersal into the austral winter hemisphere in an upper transport regime near 30 hPa associated with planetary wave activity in the southern subtropics. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Trepte, Charles R AU - Veiga, Robert E AU - McCormick, M Patrick Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 18 EP - 18,573 PB - American Geophysical Union, Washington, DC VL - 98 IS - D10 SN - 0148-0227, 0148-0227 KW - Luzon KW - Far East KW - global KW - atmosphere KW - Mount Pinatubo KW - Philippine Islands KW - eruptions KW - Pacific Ocean KW - volcanoes KW - aerosols KW - latitude KW - wind transport KW - Asia KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50177952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+poleward+dispersal+of+Mount+Pinatubo+volcanic+aerosol&rft.au=Trepte%2C+Charles+R%3BVeiga%2C+Robert+E%3BMcCormick%2C+M+Patrick&rft.aulast=Trepte&rft.aufirst=Charles&rft.date=1993-10-01&rft.volume=98&rft.issue=D10&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JD01362 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 37 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; eruptions; Far East; global; latitude; Luzon; Mount Pinatubo; Pacific Ocean; Philippine Islands; volcanoes; wind transport DO - http://dx.doi.org/10.1029/93JD01362 ER - TY - JOUR T1 - Magnetic fields of the outer planets AN - 50177885; 1994-006039 AB - It is difficult to imagine a group of planetary dynamos more diverse than those visited by the Pioneer and Voyager spacecraft. The magnetic field of Jupiter is large in magnitude and has a dipole axis within 10 degrees of its rotation axis, comfortably consistent with the paleomagnetic history of the geodynamo. Saturn's remarkable (zonal harmonic) magnetic field has an axis of symmetry that is indistinguishable from its rotation axis (<1 degrees angular separation); it is also highly antisymmetric with respect to the equator plane. According to one hypothesis, the spin symmetry may arise from the differential rotation of an electrically conducting and stably stratified layer above the dynamo. The magnetic fields of Uranus and Neptune are very much alike, and equally unlike those of the other known magnetized planets. These two planets are characterized by a large dipole tilts (59 degrees and 47 degrees , respectively) and quadrupole moments (Schmidt-normalized quadrupole/dipole ratio nearly equal 1.0). These properties may be characteristic of dynamo generation in the relatively poorly conducting "ice" interiors of Uranus and Neptune. Characteristics of these planetary magnetic fields are illustrated using contour maps of the field on the planet's surface and discussed in the context of planetary interiors and dynamo generation. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Connerney, J E P Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 18 EP - 18,679 PB - American Geophysical Union, Washington, DC VL - 98 IS - E10 SN - 0148-0227, 0148-0227 KW - Pioneer Program KW - tilt KW - dynamos KW - Jupiter KW - Voyager Program KW - quadrupole moment KW - paleomagnetism KW - magnetic field KW - giant planets KW - spherical harmonic analysis KW - Saturn KW - planets KW - Uranus KW - reversals KW - planetary interiors KW - interplanetary comparison KW - outer planets KW - Neptune KW - dipole moment KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50177885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Magnetic+fields+of+the+outer+planets&rft.au=Connerney%2C+J+E+P&rft.aulast=Connerney&rft.aufirst=J+E&rft.date=1993-10-01&rft.volume=98&rft.issue=E10&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00980 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 102 N1 - PubXState - DC N1 - Document feature - illus. incl. 9 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - dipole moment; dynamos; giant planets; interplanetary comparison; Jupiter; magnetic field; Neptune; outer planets; paleomagnetism; Pioneer Program; planetary interiors; planets; quadrupole moment; reversals; Saturn; spherical harmonic analysis; tilt; Uranus; Voyager Program DO - http://dx.doi.org/10.1029/93JE00980 ER - TY - JOUR T1 - Remote sensing signatures of terrestrial impact features AN - 50167568; 1995-022357 JF - Eos, Transactions, American Geophysical Union AU - Garvin, J B AU - Schnetzler, C C AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 387 EP - 388 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - Landsat KW - imagery KW - impact features KW - Canada KW - impact craters KW - impacts KW - ring structures KW - SPOT KW - remote sensing KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50167568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Remote+sensing+signatures+of+terrestrial+impact+features&rft.au=Garvin%2C+J+B%3BSchnetzler%2C+C+C%3BAnonymous&rft.aulast=Garvin&rft.aufirst=J&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Canada; imagery; impact craters; impact features; impacts; Landsat; remote sensing; ring structures; SPOT ER - TY - JOUR T1 - Impacts, tillites/diamictites and continental breakup AN - 50165408; 1995-022378 JF - Eos, Transactions, American Geophysical Union AU - Oberbeck, V R AU - Bunch, Ted AU - Horz, F AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 390 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - continental margin KW - upper Precambrian KW - Precambrian KW - plate divergence KW - impact features KW - textures KW - Proterozoic KW - tillite KW - impacts KW - metamorphism KW - lamellae KW - genesis KW - spatial distribution KW - sedimentary rocks KW - diamictite KW - Sheeprock Mountain Formation KW - Gondwana KW - Utah KW - clastic rocks KW - shock metamorphism KW - Cottonwood Formation KW - 06A:Sedimentary petrology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50165408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Impacts%2C+tillites%2Fdiamictites+and+continental+breakup&rft.au=Oberbeck%2C+V+R%3BBunch%2C+Ted%3BHorz%2C+F%3BAnonymous&rft.aulast=Oberbeck&rft.aufirst=V&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=390&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - clastic rocks; continental margin; Cottonwood Formation; diamictite; genesis; Gondwana; impact features; impacts; lamellae; metamorphism; plate divergence; Precambrian; Proterozoic; sedimentary rocks; Sheeprock Mountain Formation; shock metamorphism; spatial distribution; textures; tillite; United States; upper Precambrian; Utah ER - TY - JOUR T1 - Where in the world is the Australasian tektite source crater? AN - 50165368; 1995-022364 JF - Eos, Transactions, American Geophysical Union AU - Schnetzler, C C AU - Garvin, J B AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 388 EP - 389 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - strewn fields KW - Indosinias Formation KW - imagery KW - Far East KW - impact features KW - Australasia KW - landform evolution KW - impacts KW - digital terrain models KW - ejecta KW - exploration KW - spatial distribution KW - Indochina KW - impact craters KW - Asia KW - tektites KW - remote sensing KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50165368?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Where+in+the+world+is+the+Australasian+tektite+source+crater%3F&rft.au=Schnetzler%2C+C+C%3BGarvin%2C+J+B%3BAnonymous&rft.aulast=Schnetzler&rft.aufirst=C&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=388&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Asia; Australasia; digital terrain models; ejecta; exploration; Far East; imagery; impact craters; impact features; impacts; Indochina; Indosinias Formation; landform evolution; remote sensing; spatial distribution; strewn fields; tektites ER - TY - JOUR T1 - Satellite observation of SO (sub 2) emissions from the 1984 Mauna Loa eruption AN - 50158116; 1995-035045 JF - Eos, Transactions, American Geophysical Union AU - Walter, L S AU - Bluth, G J S AU - Schnetzler, C C AU - Sprod, I E AU - Krueger, A J AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 636 PB - American Geophysical Union, Washington, DC VL - 74 IS - 43, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - sulfur dioxide KW - Hawaii County Hawaii KW - Hawaii KW - East Pacific Ocean Islands KW - Mauna Loa KW - satellite methods KW - measurement KW - gases KW - eruptions KW - Oceania KW - Polynesia KW - remote sensing KW - degassing KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50158116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Satellite+observation+of+SO+%28sub+2%29+emissions+from+the+1984+Mauna+Loa+eruption&rft.au=Walter%2C+L+S%3BBluth%2C+G+J+S%3BSchnetzler%2C+C+C%3BSprod%2C+I+E%3BKrueger%2C+A+J%3BAnonymous&rft.aulast=Walter&rft.aufirst=L&rft.date=1993-10-01&rft.volume=74&rft.issue=43%2C+Suppl.&rft.spage=636&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - degassing; East Pacific Ocean Islands; eruptions; gases; Hawaii; Hawaii County Hawaii; Mauna Loa; measurement; Oceania; Polynesia; remote sensing; satellite methods; sulfur dioxide; United States ER - TY - JOUR T1 - Experimental melting of crustal xenoliths from Kilbourne Hole, New Mexico and implications for the contamination and genesis of magmas AN - 50157043; 1995-031283 AB - Experiments (P 6.9 kbar, T 900-1000 degrees C) on four crustal xenoliths from this hole demonstrate the varying melting behaviour of relatively dry crustal lithologies in the region. Granodioritic gneisses (samples KH-8 and KH-11) yield little melt ( 900 ppm Ba in high-T melts coexisting with a K-feldspar-free restite. Isotopic and trace-element models for magma contamination need to take into account the melting behaviour of isotopic reservoirs, and an example is given. The experimental results can be used to model the petrogenesis of Oligocene volcanic rocks exposed 150 km to the NW of Kilbourne Hole, in the Black Range in the Mgollon-Datil volcanic field. Crustal contamination of mantle- derived magma best explains the chemical and isotopic characteristics of these tuffs. JF - Contributions to Mineralogy and Petrology AU - Beard, J S AU - Abitz, R J AU - Lofgren, G E Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 88 EP - 102 PB - Springer International, Heidelberg-New York VL - 115 IS - 1 SN - 0010-7999, 0010-7999 KW - United States KW - isotopes KW - igneous rocks KW - granites KW - partial melting KW - Dona Ana County New Mexico KW - New Mexico KW - granulites KW - stable isotopes KW - Datil-Mogollon volcanic field KW - plutonic rocks KW - melting KW - granodiorites KW - metamorphic rocks KW - inclusions KW - chemical composition KW - xenoliths KW - P-T conditions KW - alkaline earth metals KW - experimental studies KW - magma contamination KW - Sr-87/Sr-86 KW - metals KW - magmas KW - Kilbourne Hole KW - strontium KW - crust KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50157043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Experimental+melting+of+crustal+xenoliths+from+Kilbourne+Hole%2C+New+Mexico+and+implications+for+the+contamination+and+genesis+of+magmas&rft.au=Beard%2C+J+S%3BAbitz%2C+R+J%3BLofgren%2C+G+E&rft.aulast=Beard&rft.aufirst=J&rft.date=1993-10-01&rft.volume=115&rft.issue=1&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=Contributions+to+Mineralogy+and+Petrology&rft.issn=00107999&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1995-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 9 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - CMPEAP N1 - SubjectsTermNotLitGenreText - alkaline earth metals; chemical composition; crust; Datil-Mogollon volcanic field; Dona Ana County New Mexico; experimental studies; granites; granodiorites; granulites; igneous rocks; inclusions; isotopes; Kilbourne Hole; magma contamination; magmas; melting; metals; metamorphic rocks; New Mexico; P-T conditions; partial melting; plutonic rocks; Sr-87/Sr-86; stable isotopes; strontium; United States; xenoliths ER - TY - JOUR T1 - Reality or image? Exactly what is being observed? AN - 50141765; 1995-032767 JF - Abstracts with Programs - Geological Society of America AU - Allen, Kevin P AU - Vitek, John D AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 451 PB - Geological Society of America (GSA), Boulder, CO VL - 25 IS - 6 SN - 0016-7592, 0016-7592 KW - photography KW - remote sensing KW - observations KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50141765?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Reality+or+image%3F+Exactly+what+is+being+observed%3F&rft.au=Allen%2C+Kevin+P%3BVitek%2C+John+D%3BAnonymous&rft.aulast=Allen&rft.aufirst=Kevin&rft.date=1993-10-01&rft.volume=25&rft.issue=6&rft.spage=451&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, 1993 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - observations; photography; remote sensing ER - TY - JOUR T1 - The magnetic anisotropy of gneissic rocks from the Skarvsnes area, East Antarctica AN - 50105543; 1995-066855 AB - The relationship between magnetic anisotropy and natural remanent magnetization (NRM) was investigated in gneissic rocks collected from Skarvsnes, Luetzow-Holm Bay. About 60% of the samples show clear gneissosity. The samples with gneissic fabric show magnetic anisotropy. The maximum value of Hc and IR and the minimum values of X(diff) coincide with the lineation within a foliation plane. During thermal demagnetization of the samples having stable NRMs, the NRM declinations are gradually shifted toward the direction of lineation, and they are stabilized in a plane within the rock having well developed foliation. The anisotropy tendency is more clearly observed by using the Hc and IR values than X(diff) values. Two kinds of virtual geomagnetic pole (VGP) positions are identified from the Skarvsnes area. The former is consistent (11.2S, 16.0E) with earlier results reported from the Luetzow-Holm Bay area, and the latter (2.5S, 63.2E) reflects the magnetic anisotropy resulting from the lineation. (Auth.) JF - Proceedings of the NIPR Symposium on Antarctic Geosciences AU - Nakai, Mutsumi AU - Funaki, Minoru AU - Wasilewski, Peter AU - Anonymous Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 37 EP - 46 PB - National Institute of Polar Research, Tokyo VL - 6 SN - 0914-2029, 0914-2029 KW - Lutzow-Holm Bay KW - gneisses KW - Antarctica KW - remanent magnetization KW - metamorphic rocks KW - magnetization KW - natural remanent magnetization KW - Queen Maud Land KW - Skarvsnes KW - anisotropy KW - magnetic properties KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50105543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+NIPR+Symposium+on+Antarctic+Geosciences&rft.atitle=The+magnetic+anisotropy+of+gneissic+rocks+from+the+Skarvsnes+area%2C+East+Antarctica&rft.au=Nakai%2C+Mutsumi%3BFunaki%2C+Minoru%3BWasilewski%2C+Peter%3BAnonymous&rft.aulast=Nakai&rft.aufirst=Mutsumi&rft.date=1993-10-01&rft.volume=6&rft.issue=&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+NIPR+Symposium+on+Antarctic+Geosciences&rft.issn=09142029&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twelfth symposium on Antarctic geosciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1995-01-01 N1 - Number of references - 14 N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anisotropy; Antarctica; gneisses; Lutzow-Holm Bay; magnetic properties; magnetization; metamorphic rocks; natural remanent magnetization; Queen Maud Land; remanent magnetization; Skarvsnes ER - TY - JOUR T1 - Ulysses observations of auroral hiss at high Jovian latitudes AN - 1529931306; 19554313 AB - During the Ulysses flyby of Jupiter, a whistler-mode emission was periodically detected by the Unified Radio and Plasma wave (URAP) experiment during intervals when the spacecraft extended to high magnetic latitudes. The signal was detected between the local electron plasma frequency and lower hybrid resonance and appears as a funnel-shaped structure on frequency-versus-time spectrograms; these characteristics are very reminiscent of whistler-mode auroral hiss observed at high latitudes at Earth. Ray tracing of the emission occurrences suggests the emission source is on magnetic field lines extending out to at least 65 R sub(J). This location associates the emission with the boundary between open and closed field lines - not the Io torus. The emission radiates about 10 super(7) W of power. Consequently, the auroral input power derived from the solar wind to drive the emission is believed to be 10 super(10-12) W (or about 1% of the energy associated with Io torus electrical processes). JF - Geophysical Research Letters AU - Farrell, WM AU - MacDowall, R J AU - Desch, MD AU - Kaiser, M L AU - Stone, R G AU - Kellogg, P J AU - Lin, N AU - Cornilleau-Wehrlin, N AU - Canu, P AU - Bame, S J AU - Phillips, J L AD - NASA/Goddard Space Flight Center. Y1 - 1993/10// PY - 1993 DA - October 1993 SP - 2259 EP - 2262 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 20 IS - 20 SN - 0094-8276, 0094-8276 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Solar wind KW - Jupiter KW - Auroral hiss KW - Io magnetic field KW - Spacecraft KW - Auroral emissions KW - Io effects on Jupiter radio emission KW - Magnetic fields KW - Resonance KW - Energy KW - Hybrids KW - Io-Jupiter interaction KW - Boundaries KW - Emissions KW - Latitude KW - Ulysses spacecraft KW - Waves KW - Radio KW - Wind KW - Q2 09262:Methods and instruments KW - SW 0810:General KW - M2 523.4:Planets (523.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529931306?accountid=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=Ulysses+observations+of+auroral+hiss+at+high+Jovian+latitudes&rft.au=Farrell%2C+WM%3BMacDowall%2C+R+J%3BDesch%2C+MD%3BKaiser%2C+M+L%3BStone%2C+R+G%3BKellogg%2C+P+J%3BLin%2C+N%3BCornilleau-Wehrlin%2C+N%3BCanu%2C+P%3BBame%2C+S+J%3BPhillips%2C+J+L&rft.aulast=Farrell&rft.aufirst=WM&rft.date=1993-10-01&rft.volume=20&rft.issue=20&rft.spage=2259&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL01120 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Magnetic fields; Resonance; Radio; Io effects on Jupiter radio emission; Solar wind; Io-Jupiter interaction; Jupiter; Ulysses spacecraft; Auroral hiss; Io magnetic field; Auroral emissions; Hybrids; Energy; Emissions; Latitude; Spacecraft; Boundaries; Waves; Wind DO - http://dx.doi.org/10.1029/93GL01120 ER - TY - JOUR T1 - Nonlinear combination rules and the perception of visual motion transparency. AN - 85255969; pmid-8249317 AB - Experiments were performed to elucidate the decomposition performed by the human visual system in the segregation of complex motion stimuli into distinct moving surfaces. Subjects were presented with achromatic patterns consisting of four types of elements, generated from two random binary luminance patterns (random-dot checkerboards). The luminance of each of the four region classes was under program control. Animated sequences of such images were produced by displacing each of the two generating patterns in opposite directions on a frame by frame basis. These displays evoke a wide variety of percepts, depending on the programmed luminance values, including motion in a single direction, simultaneous motions of transparent sheets in opposite directions, dynamic noise with no directional component, or any combination of the above percepts. A theory is presented which relates the strengths of these percepts to the amplitudes of the components in the perceptual decomposition. The experiments described measured thresholds for seeing noise or "twinkling" in addition to the multiple motions, with the goal of determining the particular signal transformations preceding motion analysis. The results are consistent with a motion extraction mechanism which operates on a linear representation of the input imagery. These results extend a similar finding due to Anstis and Mather [(1985) Perception, 14, 167-179] and call into question the interpretation of a recent study by Stoner, Allbright and Ramachandran [(1990) Nature (London), 344, 153-155]. JF - Vision Research AU - Mulligan, J B AD - NASA Ames Research Center, Moffett Field, CA 94035. PY - 1993 SP - 2021 EP - 2030 VL - 33 IS - 14 SN - 0042-6989, 0042-6989 KW - Contrast Sensitivity KW - Photometry KW - Human KW - Pattern Recognition, Visual KW - Support, U.S. Gov't, Non-P.H.S. KW - Light KW - Male KW - Motion Perception KW - Sensory Thresholds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85255969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vision+Research&rft.atitle=Nonlinear+combination+rules+and+the+perception+of+visual+motion+transparency.&rft.au=Mulligan%2C+J+B&rft.aulast=Mulligan&rft.aufirst=J&rft.date=1993-09-01&rft.volume=33&rft.issue=14&rft.spage=2021&rft.isbn=&rft.btitle=&rft.title=Vision+Research&rft.issn=00426989&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Development of a piezopolymer pressure sensor for a portable fetal heart rate monitor. AN - 85243157; pmid-8288288 AB - A piezopolymer pressure sensor has been developed for service in a portable fetal heart rate monitor, which will permit an expectant mother to perform the fetal nonstress test, a standard predelivery test, in her home. Several sensors are mounted in an array on a belt worn by the mother. The sensor design conforms to the distinctive features of the fetal heart tone, namely, the acoustic signature, frequency spectrum, signal amplitude, and localization. The components of a sensor serve to fulfill five functions: signal detection, acceleration cancellation, acoustical isolation, electrical shielding, and electrical isolation of the mother. A theoretical analysis of the sensor response yields a numerical value for the sensor sensitivity, which is compared to experiment in an in vitro sensor calibration. Finally, an in vivo test on patients within the last six weeks of term reveals that nonstress test recordings from the acoustic monitor compare well with those obtained from conventional ultrasound. JF - IEEE Transactions on Bio-Medical Engineering AU - Zuckerwar, A J AU - Pretlow, R A AU - Stoughton, J W AU - Baker, D A AD - NASA Langley Research Center, Hampton, VA 23681. PY - 1993 SP - 963 EP - 969 VL - 40 IS - 9 SN - 0018-9294, 0018-9294 KW - Equipment Design KW - Human KW - Fetal Monitoring KW - Calibration KW - Support, U.S. Gov't, Non-P.H.S. KW - Pressure KW - Female KW - Biosensing Techniques KW - Pregnancy KW - Polyvinyls KW - Heart Rate, Fetal KW - Membranes, Artificial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85243157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE+Transactions+on+Bio-Medical+Engineering&rft.atitle=Development+of+a+piezopolymer+pressure+sensor+for+a+portable+fetal+heart+rate+monitor.&rft.au=Zuckerwar%2C+A+J%3BPretlow%2C+R+A%3BStoughton%2C+J+W%3BBaker%2C+D+A&rft.aulast=Zuckerwar&rft.aufirst=A&rft.date=1993-09-01&rft.volume=40&rft.issue=9&rft.spage=963&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Bio-Medical+Engineering&rft.issn=00189294&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - GEN T1 - Careers in Science and Technology. AN - 62808345; ED372961 AB - Choosing a career can be a time consuming and difficult task. This book is intended to serve as a reference for today's youths as they make decisions on their career goals and college education. The book contains descriptions of the various scientific and engineering fields and their associated requirements, guidance in college curriculum, and biographical examples of successful scientists and engineers. Also included is a listing of the national, regional, and local education programs for teachers and students sponsored by the Department of Energy, National Aeronautics and Space Administration, and the National Technical Association. (ZWH) Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 107 KW - Department of Energy KW - National Aeronautics and Space Administration KW - National Technical Association KW - ERIC, Resources in Education (RIE) KW - Science Education KW - Scientists KW - Engineering Education KW - Science Careers KW - Technology Education KW - Career Education KW - Higher Education KW - Secondary Education UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62808345?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - SuppNotes - Photographs may not reproduce clearly. N1 - Last updated - 2014-03-21 ER - TY - GEN T1 - NASA's Education Program. AN - 62805590; ED370807 AB - America is faced with making systemic changes in education that will insure continuance of her leadership role in the 21st century. In an effort to make changes toward the aforementioned reforms, the federal government has charged 16 participating Federal agencies with achieving goals that will ensure that all students learn to use their minds well so they may be prepared for responsible citizenship, further learning, and productive employment in the economy. This article describes the strategic plan for education outlined by the National Aeronautics and Space Administration (NASA), one of the sixteen participating organizations. Included in the document are (1) a list of NASA's goals regarding education reform; (2) descriptions of programs, on the elementary, and secondary, and higher education level, designed to improve the technological competence of students; (3) technology and evaluation programs; (4) educational publications to supplement programs; and (5) a resource section which lists NASA's national and regional Teacher Resource Centers and introduces the reader to NASA's Central Operation of Resources for Educators (CORE). CORE distributes materials in audiovisual format. (ZWH) Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 67 PB - National Aeronautics and Space Administration, Washington, DC 20546. KW - National Aeronautics and Space Administration KW - ERIC, Resources in Education (RIE) KW - Science Programs KW - Technology Education KW - Educational Change KW - National Programs KW - Elementary Secondary Education KW - Science Instruction KW - Higher Education KW - Futures (of Society) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62805590?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Relationship between satellite microwave radiometric data, antecedent precipitation index, and regional soil moisture AN - 51567909; 2006-058296 JF - International Journal of Remote Sensing AU - Teng, W L AU - Wang, J R AU - Doraiswamy, P C Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 2483 EP - 2500 PB - Taylor & Francis, London VL - 14 IS - 13 SN - 0143-1161, 0143-1161 KW - United States KW - imagery KW - terrestrial environment KW - moisture KW - Missouri KW - semi-arid environment KW - techniques KW - mapping KW - atmospheric precipitation KW - vegetation KW - Iowa KW - temperature KW - microwave methods KW - brightness KW - AVHRR KW - infrared methods KW - soils KW - Illinois KW - geophysical methods KW - correlation KW - satellite methods KW - measurement KW - Kansas KW - Nebraska KW - remote sensing KW - airborne methods KW - 20:Applied geophysics KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51567909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Remote+Sensing&rft.atitle=Relationship+between+satellite+microwave+radiometric+data%2C+antecedent+precipitation+index%2C+and+regional+soil+moisture&rft.au=Teng%2C+W+L%3BWang%2C+J+R%3BDoraiswamy%2C+P+C&rft.aulast=Teng&rft.aufirst=W&rft.date=1993-09-01&rft.volume=14&rft.issue=13&rft.spage=2483&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - airborne methods; atmospheric precipitation; AVHRR; brightness; correlation; geophysical methods; Illinois; imagery; infrared methods; Iowa; Kansas; mapping; measurement; microwave methods; Missouri; moisture; Nebraska; remote sensing; satellite methods; semi-arid environment; soils; techniques; temperature; terrestrial environment; United States; vegetation ER - TY - JOUR T1 - Consortium study of the unusual H chondrite regolith breccia, Noblesville AN - 50334789; 1994-016911 JF - Meteoritics AU - Lipschutz, Michael E AU - Wolf, Stephen F AU - Vogt, Stephan AU - Michlovich, Edward AU - Lindstrom, Marilyn M AU - Zolensky, Michael E AU - Mittlefehldt, David W AU - Satterwhite, Cecilia AU - Schultz, Ludolf AU - Loeken, Thomas AU - Scherer, Peter AU - Dodd, Robert T AU - Sears, Derek W G AU - Benoit, Paul H AU - Wacker, John F AU - Burns, Roger G AU - Fisher, Duncan S Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 528 EP - 537 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 4 SN - 0026-1114, 0026-1114 KW - ordinary chondrites KW - stony meteorites KW - isotopes KW - thermoluminescence KW - exposure age KW - stable isotopes KW - meteorites KW - sedimentary rocks KW - radioactive isotopes KW - noble gases KW - helium KW - orbital observations KW - trace elements KW - chondrites KW - chemical composition KW - Xe-132/Xe-129 KW - Noblesville Meteorite KW - breccia KW - isotope ratios KW - H chondrites KW - clasts KW - xenon KW - clastic rocks KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50334789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Consortium+study+of+the+unusual+H+chondrite+regolith+breccia%2C+Noblesville&rft.au=Lipschutz%2C+Michael+E%3BWolf%2C+Stephen+F%3BVogt%2C+Stephan%3BMichlovich%2C+Edward%3BLindstrom%2C+Marilyn+M%3BZolensky%2C+Michael+E%3BMittlefehldt%2C+David+W%3BSatterwhite%2C+Cecilia%3BSchultz%2C+Ludolf%3BLoeken%2C+Thomas%3BScherer%2C+Peter%3BDodd%2C+Robert+T%3BSears%2C+Derek+W+G%3BBenoit%2C+Paul+H%3BWacker%2C+John+F%3BBurns%2C+Roger+G%3BFisher%2C+Duncan+S&rft.aulast=Lipschutz&rft.aufirst=Michael&rft.date=1993-09-01&rft.volume=28&rft.issue=4&rft.spage=528&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 61 N1 - PubXState - AZ N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - breccia; chemical composition; chondrites; clastic rocks; clasts; exposure age; H chondrites; helium; isotope ratios; isotopes; meteorites; noble gases; Noblesville Meteorite; orbital observations; ordinary chondrites; radioactive isotopes; regolith; sedimentary rocks; stable isotopes; stony meteorites; thermoluminescence; trace elements; Xe-132/Xe-129; xenon ER - TY - JOUR T1 - Discovery of vapor deposits in the lunar regolith AN - 50317582; 1993-035016 JF - Science AU - Keller, Lindsay P AU - McKay, David S Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 1305 EP - 1307 PB - American Association for the Advancement of Science, Washington, DC VL - 261 IS - 5126 SN - 0036-8075, 0036-8075 KW - silicates KW - plagioclase KW - Moon KW - amorphous materials KW - solar wind KW - alkali metals KW - atmosphere KW - crystal growth KW - sodium KW - impacts KW - TEM data KW - crystallinity KW - anorthite KW - metals KW - potassium KW - framework silicates KW - feldspar group KW - regolith KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50317582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Discovery+of+vapor+deposits+in+the+lunar+regolith&rft.au=Keller%2C+Lindsay+P%3BMcKay%2C+David+S&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=1993-09-01&rft.volume=261&rft.issue=5126&rft.spage=1305&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - alkali metals; amorphous materials; anorthite; atmosphere; crystal growth; crystallinity; feldspar group; framework silicates; impacts; lunar soils; metals; Moon; plagioclase; potassium; regolith; silicates; sodium; solar wind; TEM data ER - TY - JOUR T1 - Impacts and global change AN - 50309778; 1993-040953 JF - Geotimes AU - Oberbeck, Verne R Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 16 EP - 18 PB - American Geological Institute, Alexandria, VA VL - 38 IS - 9 SN - 0016-8556, 0016-8556 KW - processes KW - genesis KW - chemical weathering KW - comets KW - accretion KW - asteroids KW - effects KW - impacts KW - weathering KW - evolution KW - climate KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50309778?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geotimes&rft.atitle=Impacts+and+global+change&rft.au=Oberbeck%2C+Verne+R&rft.aulast=Oberbeck&rft.aufirst=Verne&rft.date=1993-09-01&rft.volume=38&rft.issue=9&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=Geotimes&rft.issn=00168556&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GEOTAJ N1 - SubjectsTermNotLitGenreText - accretion; asteroids; chemical weathering; climate; comets; effects; evolution; genesis; impacts; processes; weathering ER - TY - JOUR T1 - Journal of Geology AN - 50297274; 1994-001305 AB - Oberbeck et al. (1993) proposed that some ancient sedimentary rocks such as diamictites and associated deposits, widely interpreted as glacigenic, should be reassessed in the light of recent advances in the understanding of impact-related phenomena. Such radical departures from accepted interpretations can stimulate review of long-accepted, more traditional ideas and thus provide a catalyst for new avenues of research. The proposed reinterpretations have potentially far-reaching consequences. For example, the possible connections between long-term climatic change and tectonic history of the earth would be brought into question. Some aspects of atmospheric evolution, interpretation of stable isotope distribution curves, and ideas on the evolution of life have been linked to inferences about cold climatic episodes, glaciations, based primarily on study of the rock record. In the last two decades, following publication of the benchmark paper by Schermerhorn (1974), glacial specialists have been particularly circumspect in their interpretations and have developed what they consider to be a reliable set of criteria for the recognition of glacial deposits. The author suggests that the proposed impact theory for the origin of many diamictite-bearing sequences is correspondingly suspect. (Auth.) JF - Journal of Geology AU - Young, Grant M AU - Oberbeck, Verne R AU - Marshall, John R AU - Aggarwal, Hans Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 675 EP - 683 PB - University of Chicago Press, Chicago, IL VL - 101 IS - 5 SN - 0022-1376, 0022-1376 KW - Paleozoic KW - sedimentation KW - Carboniferous KW - tillite KW - impacts KW - Permian KW - continental drift KW - ancient ice ages KW - sedimentary rocks KW - diamictite KW - thickness KW - Gondwana KW - glacial sedimentation KW - clastic rocks KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50297274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geology&rft.atitle=Journal+of+Geology&rft.au=Young%2C+Grant+M%3BOberbeck%2C+Verne+R%3BMarshall%2C+John+R%3BAggarwal%2C+Hans&rft.aulast=Young&rft.aufirst=Grant&rft.date=1993-09-01&rft.volume=101&rft.issue=5&rft.spage=675&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geology&rft.issn=00221376&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1994-01-01 N1 - Number of references - 54 N1 - PubXState - IL N1 - SuppNotes - For reference to original see Oberbeck, V. R., et al., J. Geol., Vol. 101, p. 1, 1993 N1 - Last updated - 2012-06-07 N1 - CODEN - JGEOAZ N1 - SubjectsTermNotLitGenreText - ancient ice ages; Carboniferous; clastic rocks; continental drift; diamictite; glacial sedimentation; Gondwana; impacts; Paleozoic; Permian; sedimentary rocks; sedimentation; thickness; tillite ER - TY - JOUR T1 - Analysis of Seasat L-band radar imagery of the West Bay-Indin Lake fault system, Northwest Territories AN - 50294078; 1994-001299 JF - Journal of Geology AU - Kusky, Timothy M AU - Lowman, Paul D, Jr AU - Masuoka, Penny AU - Blodget, H W Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 623 EP - 632 PB - University of Chicago Press, Chicago, IL VL - 101 IS - 5 SN - 0022-1376, 0022-1376 KW - mafic composition KW - continental crust KW - strike-slip faults KW - dike swarms KW - West Bay-Indin Lake fault system KW - Canadian Shield KW - tectonics KW - Slave Province KW - Seasat KW - faults KW - North America KW - lineaments KW - structural analysis KW - radar methods KW - brittle deformation KW - deformation KW - satellite methods KW - Northwest Territories KW - intrusions KW - dikes KW - Canada KW - Western Canada KW - foliation KW - crust KW - remote sensing KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50294078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geology&rft.atitle=Analysis+of+Seasat+L-band+radar+imagery+of+the+West+Bay-Indin+Lake+fault+system%2C+Northwest+Territories&rft.au=Kusky%2C+Timothy+M%3BLowman%2C+Paul+D%2C+Jr%3BMasuoka%2C+Penny%3BBlodget%2C+H+W&rft.aulast=Kusky&rft.aufirst=Timothy&rft.date=1993-09-01&rft.volume=101&rft.issue=5&rft.spage=623&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geology&rft.issn=00221376&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 60 N1 - PubXState - IL N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JGEOAZ N1 - SubjectsTermNotLitGenreText - brittle deformation; Canada; Canadian Shield; continental crust; crust; deformation; dike swarms; dikes; faults; foliation; intrusions; lineaments; mafic composition; North America; Northwest Territories; radar methods; remote sensing; satellite methods; Seasat; Slave Province; strike-slip faults; structural analysis; tectonics; West Bay-Indin Lake fault system; Western Canada ER - TY - JOUR T1 - The mid-infrared transmission spectra of Antarctic ureilites AN - 50272530; 1994-016916 AB - The mid-infrared transmission spectra of 7 antarctic ureilites and 10 antarctic H-5 ordinary chondrites are presented. The ureilite spectra show a number of absorption bands, the strongest of which is a wide, complex feature due to Si-O stretching vibrations in silicates. The profiles and positions of the substructure in this feature indicate that Mg-rich olivines and pyroxenes are the main silicates responsible. The relative abundances of these two minerals show substantial variation from meteorite to meteorite, but generally indicate olivine as the most abundant. Both the predominance of olivine and the variable olivine-to-pyroxene ratio are consistent with the known composition and heterogeneity of ureilites. The H-5 ordinary chondrites spanned a range of weathering classes and were used to provide a means of addressing the extent to which the ureilite spectra may have been altered by weathering processes. While weathering of these meteorites produces some weak bands, the profile of the main silicate feature has been little affected by antarctic exposure in the meteorites studied here. The mid-infrared ureilite spectra provide an additional means of testing potential asteroidal parent bodies for the ureilites, particularly the subset of S-type asteroids having low albedos and weak absorption features in the near infrared. (Auth. mod.) JF - Meteoritics AU - Sandford, Scott A Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 579 EP - 585 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 4 SN - 0026-1114, 0026-1114 KW - silicates KW - stony meteorites KW - asteroids KW - olivine group KW - ureilite KW - achondrites KW - infrared spectra KW - nesosilicates KW - meteorites KW - pyroxene group KW - mineral composition KW - detection KW - Antarctica KW - olivine KW - orthosilicates KW - spectra KW - chondrites KW - chain silicates 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/50272530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=The+mid-infrared+transmission+spectra+of+Antarctic+ureilites&rft.au=Sandford%2C+Scott+A&rft.aulast=Sandford&rft.aufirst=Scott&rft.date=1993-09-01&rft.volume=28&rft.issue=4&rft.spage=579&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1994-01-01 N1 - Number of references - 45 N1 - PubXState - AZ N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; asteroids; chain silicates; chondrites; detection; infrared spectra; meteorites; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; pyroxene group; silicates; spectra; stony meteorites; ureilite ER - TY - JOUR T1 - The atmospheric SO (sub 2) budget for Pinatubo derived from NOAA-11 SBUV/2 spectral data AN - 50172042; 1995-048635 AB - Spectral scan data from the NOAA-11 SBUV/2 instrument were used to derive SO (sub 2) for three days following the eruption of Mt. Pinatubo - June 19, July 1, and July 17, 1991. Band structure between 300 and 310 nm observed in the backscattered albedo uniquely identifies the presence of SO (sub 2) . Band ratios are used to infer SO (sub 2) amounts to better accuracy ( approximately 10% to 20%) and sensitivity (about 0.5 milli-atm-cm of SO (sub 2) ) than the TOMS retrieval, but with relatively poor spatial coverage because the measurement is nadir only. Only 7 scans showed detectable SO (sub 2) on June 19 when the cloud was still very localized. On July 1 there were 29 scans between 35 degrees N and 12 degrees S with SO (sub 2) , with the highest concentration detected over the Atlantic, and on July 17 SO (sub 2) was detected in 30 scans around the world, but in decreased concentration. Estimates of the total SO (sub 2) budget made after the cloud had spread sufficiently for the sparse SBUV/2 sampling to be adequate indicated that there were 8.4 million metric tons (MMT) of SO (sub 2) in the stratosphere on July 1, 1991, and 4.1 MMT remaining on July 17. This corresponds to an e-folding time of about 24 days for the conversion of SO (sub 2) to aerosol, and is consistent with an initial injection into the stratosphere of 12-15 MMT of SO (sub 2) . JF - Geophysical Research Letters AU - McPeters, Richard D Y1 - 1993/09// PY - 1993 DA - September 1993 SP - 1971 EP - 1974 PB - American Geophysical Union, Washington, DC VL - 20 IS - 18 SN - 0094-8276, 0094-8276 KW - albedo KW - sulfur dioxide KW - Luzon KW - Far East KW - atmosphere KW - ozone KW - stratosphere KW - Mount Pinatubo KW - Philippine Islands KW - volcanism KW - volcanoes KW - ultraviolet spectra KW - aerosols KW - spectra KW - volcanic ash KW - Asia KW - meteorology KW - backscattering KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50172042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=The+atmospheric+SO+%28sub+2%29+budget+for+Pinatubo+derived+from+NOAA-11+SBUV%2F2+spectral+data&rft.au=McPeters%2C+Richard+D&rft.aulast=McPeters&rft.aufirst=Richard&rft.date=1993-09-01&rft.volume=20&rft.issue=18&rft.spage=1971&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL02360 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 12 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; albedo; Asia; atmosphere; backscattering; Far East; Luzon; meteorology; Mount Pinatubo; ozone; Philippine Islands; spectra; stratosphere; sulfur dioxide; ultraviolet spectra; volcanic ash; volcanism; volcanoes DO - http://dx.doi.org/10.1029/93GL02360 ER - TY - JOUR T1 - Alternating prism exposure causes dual adaptation and generalization to a novel displacement. AN - 85187516; pmid-8361835 AB - In two experiments, we examined the hypothesis that repeatedly adapting and readapting to two mutually conflicting sensory environments fosters the development of a separate adaptation to each situation (dual adaptation) as well as an increased ability to adapt to a novel displacement (adaptive generalization). In the preliminary study, subjects alternated between adapting their visuomotor coordination to 30-diopter prismatic displacement and readapting to normal vision. Dual adaptation was observed by the end of 10 alternation cycles. However, an unconfounded test of adaptive generalization was prevented by an unexpected prism-adaptive shift in preexposure baselines for the dual-adapted subjects. In the primary experiment, the subjects adapted and readapted to opposite 15-diopter displacements for a total of 12 cycles. Both dual adaptation and adaptive generalization to a 30-diopter displacement were obtained. These findings may be understood in terms of serial reversal learning and "learning to learn." JF - Perception and Psychophysics AU - Welch, R B AU - Bridgeman, B AU - Anand, S AU - Browman, K E AD - NASA-Ames Research Center, Moffett Field, CA 94035-1000. PY - 1993 SP - 195 EP - 204 VL - 54 IS - 2 SN - 0031-5117, 0031-5117 KW - Orientation KW - Human KW - Adult KW - Support, U.S. Gov't, Non-P.H.S. KW - Feedback KW - Mental Recall KW - Psychophysics KW - Male KW - Female KW - Problem Solving KW - Adaptation, Psychological KW - Generalization (Psychology) KW - Perceptual Distortion KW - Psychomotor Performance KW - Attention UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85187516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Perception+and+Psychophysics&rft.atitle=Alternating+prism+exposure+causes+dual+adaptation+and+generalization+to+a+novel+displacement.&rft.au=Welch%2C+R+B%3BBridgeman%2C+B%3BAnand%2C+S%3BBrowman%2C+K+E&rft.aulast=Welch&rft.aufirst=R&rft.date=1993-08-01&rft.volume=54&rft.issue=2&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Perception+and+Psychophysics&rft.issn=00315117&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Medical concerns for exploration-class missions. AN - 76368397; 11541645 AB - The Space Exploration Initiative will challenge life scientists with a diverse set of crew medical risks. The varied sources of this cumulative risk are identified and briefly discussed in terms of risk assessment and preliminary plans for risk management. The roles of Space Station Freedom and other flight programs are discussed in the context of exploration medical objectives; and the significant differences between Space Station era (second generation) and exploration medical support systems (third generation) are reviewed. JF - Acta astronautica AU - Stewart, D F AU - Lujan, B F AD - Aerospace Medicine Office, NASA Headquarters, Washington, DC 20546, USA. Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 633 EP - 638 VL - 29 IS - 8 SN - 0094-5765, 0094-5765 KW - Space life sciences KW - Life Support Systems KW - Radiation Protection KW - Cosmic Radiation KW - Humans KW - Weightlessness Countermeasures KW - Personnel Selection KW - Risk Assessment KW - Biological Science Disciplines KW - Astronauts KW - Solar Activity KW - Risk Management KW - Delivery of Health Care KW - Ecological Systems, Closed KW - Weightlessness -- adverse effects KW - Aerospace Medicine -- trends KW - Space Flight -- standards KW - Space Flight -- trends KW - Aerospace Medicine -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76368397?accountid=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=Acta+astronautica&rft.atitle=Medical+concerns+for+exploration-class+missions.&rft.au=Stewart%2C+D+F%3BLujan%2C+B+F&rft.aulast=Stewart&rft.aufirst=D&rft.date=1993-08-01&rft.volume=29&rft.issue=8&rft.spage=633&rft.isbn=&rft.btitle=&rft.title=Acta+astronautica&rft.issn=00945765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-04-11 N1 - Date created - 1999-04-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - GEN T1 - NASA's Great Observatories Paper Model Kits. AN - 62625780; ED395825 AB - The Hubble Space Telescope, the most complex and sensitive optical telescope ever made, was built to study the cosmos from low-Earth orbit for 10 to 15 years or more. The Compton Gamma Ray Observatory is a complex spacecraft fitted with four different gamma ray detectors, each of which concentrates on different but overlapping energy range and was designed to help astronomers learn about the most powerful celestial bodies and events in the universe. This educational product for grades 5 and up contains detailed descriptions to assemble a Hubble Space Telescope model and a Compton Gamma Ray Observatory model. Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 19 KW - Compton Gamma Ray Observatory KW - Hubble Space Telescope KW - Paper Models KW - ERIC, Resources in Education (RIE) KW - Teachers KW - Students KW - Practitioners KW - Aerospace Education KW - Space Sciences KW - Secondary Education UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62625780?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Microscopic iron metal on glass and minerals; a tool for studying regolith maturity AN - 51668408; 2005-069408 JF - Icarus (Online) AU - Allen, C C AU - Morris, R V AU - Lauer, H V, Jr AU - McKay, D S Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 291 EP - 300 PB - Elsevier VL - 104 IS - 2 SN - 1090-2643, 1090-2643 KW - silicates KW - near-infrared spectra KW - maturity KW - volcanic rocks KW - glasses KW - igneous rocks KW - techniques KW - olivine group KW - iron KW - temperature KW - infrared spectra KW - pyroxene group KW - mineral composition KW - olivine KW - basalts KW - orthosilicates KW - framework silicates KW - spectra KW - reduction KW - geochemistry KW - lunar soils KW - chain silicates KW - plagioclase KW - Moon KW - size KW - nesosilicates KW - metals KW - planetology KW - feldspar group KW - SEM data KW - regolith KW - minerals KW - high temperature KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51668408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Microscopic+iron+metal+on+glass+and+minerals%3B+a+tool+for+studying+regolith+maturity&rft.au=Allen%2C+C+C%3BMorris%2C+R+V%3BLauer%2C+H+V%2C+Jr%3BMcKay%2C+D+S&rft.aulast=Allen&rft.aufirst=C&rft.date=1993-08-01&rft.volume=104&rft.issue=2&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1993.1102 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - basalts; chain silicates; feldspar group; framework silicates; geochemistry; glasses; high temperature; igneous rocks; infrared spectra; iron; lunar soils; maturity; metals; mineral composition; minerals; Moon; near-infrared spectra; nesosilicates; olivine; olivine group; orthosilicates; plagioclase; planetology; pyroxene group; reduction; regolith; SEM data; silicates; size; spectra; techniques; temperature; volcanic rocks DO - http://dx.doi.org/10.1006/icar.1993.1102 ER - TY - JOUR T1 - Surface ices and the atmospheric composition of Pluto AN - 50343763; 1993-027574 JF - Science AU - Owen, Tobias C AU - Roush, Ted L AU - Cruikshank, Dale P AU - Elliot, James L AU - Young, Leslie A AU - de Bergh, Catherine AU - Schmitt, Bernard AU - Geballe, Thomas R AU - Brown, Robert H AU - Bartholomew, Mary Jane Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 745 EP - 748 PB - American Association for the Advancement of Science, Washington, DC VL - 261 IS - 5122 SN - 0036-8075, 0036-8075 KW - organic materials KW - surface properties KW - icy satellites KW - Triton Satellite KW - methane KW - aliphatic hydrocarbons KW - atmosphere KW - alkanes KW - dwarf planets KW - nitrogen KW - giant planets KW - planets KW - carbon monoxide KW - organic compounds KW - ice KW - hydrocarbons KW - interplanetary comparison KW - spectra KW - outer planets KW - Neptune KW - satellites KW - geochemistry KW - Pluto KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50343763?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Surface+ices+and+the+atmospheric+composition+of+Pluto&rft.au=Owen%2C+Tobias+C%3BRoush%2C+Ted+L%3BCruikshank%2C+Dale+P%3BElliot%2C+James+L%3BYoung%2C+Leslie+A%3Bde+Bergh%2C+Catherine%3BSchmitt%2C+Bernard%3BGeballe%2C+Thomas+R%3BBrown%2C+Robert+H%3BBartholomew%2C+Mary+Jane&rft.aulast=Owen&rft.aufirst=Tobias&rft.date=1993-08-01&rft.volume=261&rft.issue=5122&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 31 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; carbon monoxide; dwarf planets; geochemistry; giant planets; hydrocarbons; ice; icy satellites; interplanetary comparison; methane; Neptune; nitrogen; organic compounds; organic materials; outer planets; planets; Pluto; satellites; spectra; surface properties; Triton Satellite ER - TY - JOUR T1 - Spectroscopic determination of the phase composition and temperature of nitrogen ice on Triton AN - 50340699; 1993-027576 JF - Science AU - Tryka, Kimberly A AU - Brown, Robert H AU - Anicich, Vincent AU - Cruikshank, Dale P AU - Owen, Tobias C Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 751 EP - 754 PB - American Association for the Advancement of Science, Washington, DC VL - 261 IS - 5122 SN - 0036-8075, 0036-8075 KW - surface properties KW - icy satellites KW - Triton Satellite KW - temperature KW - nitrogen KW - infrared spectra KW - giant planets KW - planets KW - phase equilibria KW - ice KW - spectra KW - outer planets KW - Neptune KW - satellites KW - transmittance spectra KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50340699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Spectroscopic+determination+of+the+phase+composition+and+temperature+of+nitrogen+ice+on+Triton&rft.au=Tryka%2C+Kimberly+A%3BBrown%2C+Robert+H%3BAnicich%2C+Vincent%3BCruikshank%2C+Dale+P%3BOwen%2C+Tobias+C&rft.aulast=Tryka&rft.aufirst=Kimberly&rft.date=1993-08-01&rft.volume=261&rft.issue=5122&rft.spage=751&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Calif. Inst. Technol., Div. Geol. and Planet. Sci., Contrib. No. 5281 N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - giant planets; ice; icy satellites; infrared spectra; Neptune; nitrogen; outer planets; phase equilibria; planets; satellites; spectra; surface properties; temperature; transmittance spectra; Triton Satellite ER - TY - JOUR T1 - Evidence for surface heterogeneity on Titan AN - 50337614; 1993-023551 JF - Nature (London) AU - Griffith, Caitlin A Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 511 EP - 514 PB - Macmillan Journals, London VL - 364 IS - 6437 SN - 0028-0836, 0028-0836 KW - albedo KW - surface properties KW - near-infrared spectra KW - icy satellites KW - atmosphere KW - infrared spectra KW - giant planets KW - Saturn KW - planets KW - Titan Satellite KW - spectra KW - outer planets KW - satellites KW - heterogeneity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50337614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Evidence+for+surface+heterogeneity+on+Titan&rft.au=Griffith%2C+Caitlin+A&rft.aulast=Griffith&rft.aufirst=Caitlin&rft.date=1993-08-01&rft.volume=364&rft.issue=6437&rft.spage=511&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 - 1993-01-01 N1 - Number of references - 29 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - albedo; atmosphere; giant planets; heterogeneity; icy satellites; infrared spectra; near-infrared spectra; outer planets; planets; satellites; Saturn; spectra; surface properties; Titan Satellite ER - TY - JOUR T1 - Rubidium and cesium in the Earth and the Moon AN - 50328868; 1993-027623 AB - Volatile elements such as these alkalis are potential tracers of T- dependent processes involved in lunar origin. Since Cs is more volatile than Rb and if the Moon formed from the Earth's mantle after core formation, then the Moon would be expected to have a higher Rb/Cs ratio than the silicate portion of the Earth. The apparent secular change in the Rb/Cs ratio may be an artifact of alteration of older rocks through weathering and/or metamorphism before formation. The Rb/Cs ratios measured today may not be those during crystallization. The mass-balance problem for Rb and Cs is discussed. New methods for estimating the Rb/Cs ratio of the bulk silicate Earth are suggested. The Rb/Cs ratios inferred for the silicate portion of the Earth and Moon are distinct: the lunar value is 15-20 and the Earth's 40. JF - Geochimica et Cosmochimica Acta AU - Jones, John H AU - Drake, Michael J Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 3785 EP - 3792 PB - Pergamon, Oxford VL - 57 IS - 15 SN - 0016-7037, 0016-7037 KW - processes KW - volcanic rocks KW - Moon KW - igneous rocks KW - rubidium KW - alkali metals KW - mantle KW - maria KW - temperature KW - cesium KW - metals KW - mid-ocean ridge basalts KW - basalts KW - Rb/Cs KW - core KW - ocean-island basalts KW - geochemistry KW - high temperature KW - 02C:Geochemistry of rocks, soils, and sediments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50328868?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Rubidium+and+cesium+in+the+Earth+and+the+Moon&rft.au=Jones%2C+John+H%3BDrake%2C+Michael+J&rft.aulast=Jones&rft.aufirst=John&rft.date=1993-08-01&rft.volume=57&rft.issue=15&rft.spage=3785&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990155-P 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 - 1993-01-01 N1 - Number of references - 32 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; basalts; cesium; core; geochemistry; high temperature; igneous rocks; mantle; maria; metals; mid-ocean ridge basalts; Moon; ocean-island basalts; processes; Rb/Cs; rubidium; temperature; volcanic rocks DO - http://dx.doi.org/10.1016/0016-7037(93)90155-P ER - TY - JOUR T1 - Ice on the surface of Triton AN - 50327987; 1993-027573 JF - Science AU - Cruikshank, Dale P AU - Roush, Ted L AU - Owen, Tobias C AU - Geballe, Thomas R AU - de Bergh, Catherine AU - Schmitt, Bernard AU - Brown, Robert H AU - Bartholomew, Mary Jane Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 742 EP - 745 PB - American Association for the Advancement of Science, Washington, DC VL - 261 IS - 5122 SN - 0036-8075, 0036-8075 KW - near-infrared spectra KW - icy satellites KW - Triton Satellite KW - data processing KW - aliphatic hydrocarbons KW - Voyager Program KW - nitrogen KW - infrared spectra KW - giant planets KW - carbon dioxide KW - ice KW - Voyager 2 KW - spectra KW - outer planets KW - Neptune KW - satellites KW - geochemistry KW - organic materials KW - surface properties KW - methane KW - photochemistry KW - alkanes KW - planets KW - carbon monoxide KW - organic compounds KW - hydrocarbons KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50327987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ice+on+the+surface+of+Triton&rft.au=Cruikshank%2C+Dale+P%3BRoush%2C+Ted+L%3BOwen%2C+Tobias+C%3BGeballe%2C+Thomas+R%3Bde+Bergh%2C+Catherine%3BSchmitt%2C+Bernard%3BBrown%2C+Robert+H%3BBartholomew%2C+Mary+Jane&rft.aulast=Cruikshank&rft.aufirst=Dale&rft.date=1993-08-01&rft.volume=261&rft.issue=5122&rft.spage=742&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; carbon dioxide; carbon monoxide; data processing; geochemistry; giant planets; hydrocarbons; ice; icy satellites; infrared spectra; methane; near-infrared spectra; Neptune; nitrogen; organic compounds; organic materials; outer planets; photochemistry; planets; satellites; spectra; surface properties; Triton Satellite; Voyager 2; Voyager Program ER - TY - JOUR T1 - New views for Antarctic glaciology AN - 50327642; 1993-027483 AB - Because of the instability of the west antarctic ice sheet and the threat of its possible collapse and consequent release of its reservoir of water, it is important to have a remote sensing capability available for continuous monitoring of the ice sheet. A brief view is provided of the ease, precision, frequency, and safety that have accompanied the development of satellite imagery for gathering ice sheet data in the remoteness of Antarctica. JF - Geotimes AU - Bindschadler, Robert Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 17 EP - 19 PB - American Geological Institute, Alexandria, VA VL - 38 IS - 8 SN - 0016-8556, 0016-8556 KW - imagery KW - topography KW - Antarctica KW - glacial geology KW - satellite methods KW - changes of level KW - possibilities KW - ice sheets KW - remote sensing KW - changes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50327642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geotimes&rft.atitle=New+views+for+Antarctic+glaciology&rft.au=Bindschadler%2C+Robert&rft.aulast=Bindschadler&rft.aufirst=Robert&rft.date=1993-08-01&rft.volume=38&rft.issue=8&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Geotimes&rft.issn=00168556&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1993-01-01 N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GEOTAJ N1 - SubjectsTermNotLitGenreText - Antarctica; changes; changes of level; glacial geology; ice sheets; imagery; possibilities; remote sensing; satellite methods; topography ER - TY - JOUR T1 - Evidence of thermal metamorphism on the C, G, B, and F asteroids AN - 50325002; 1993-029625 JF - Science AU - Hiroi, Takahiro AU - Pieters, Carle M AU - Zolensky, Michael E AU - Lipschutz, Michael E Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 1016 EP - 1018 PB - American Association for the Advancement of Science, Washington, DC VL - 261 IS - 5124 SN - 0036-8075, 0036-8075 KW - surface properties KW - C asteroids KW - experimental studies KW - stony meteorites KW - B asteroids KW - asteroids KW - thermal metamorphism KW - carbonaceous chondrites KW - metamorphism KW - G asteroids KW - temperature KW - meteorites KW - F asteroids KW - ultraviolet spectra KW - spectra KW - chondrites KW - thermal effects KW - reflectance KW - remote sensing KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50325002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Evidence+of+thermal+metamorphism+on+the+C%2C+G%2C+B%2C+and+F+asteroids&rft.au=Hiroi%2C+Takahiro%3BPieters%2C+Carle+M%3BZolensky%2C+Michael+E%3BLipschutz%2C+Michael+E&rft.aulast=Hiroi&rft.aufirst=Takahiro&rft.date=1993-08-01&rft.volume=261&rft.issue=5124&rft.spage=1016&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; B asteroids; C asteroids; carbonaceous chondrites; chondrites; experimental studies; F asteroids; G asteroids; metamorphism; meteorites; reflectance; remote sensing; spectra; stony meteorites; surface properties; temperature; thermal effects; thermal metamorphism; ultraviolet spectra ER - TY - JOUR T1 - Biogeochemical cycles of carbon, sulfur, and free oxygen in a microbial mat AN - 50317623; 1993-033960 AB - The sources and sinks of C, S and O (sub 2) are identified and quantified for a cyanobacterial mat sampled from the evaporating ponds of Guerrero Negro, Baja California Sur, Mexico. Budgets are constructed to account for the cycling of these elements. The most important factors controlling primary production in these mats are light, T and availability of nutrients and C, and these are discussed. JF - Geochimica et Cosmochimica Acta AU - Canfield, Donald E AU - Des Marais, David J Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 3971 EP - 3984 PB - Pergamon, Oxford VL - 57 IS - 16 SN - 0016-7037, 0016-7037 KW - photosynthesis KW - fixation KW - oxygen KW - biogenic structures KW - biochemistry KW - oxidation KW - photochemistry KW - geochemical cycle KW - algal structures KW - biogenic processes KW - Mexico KW - Cyanobacteria KW - Baja California KW - Guerrero Negro Mexico KW - algal mats KW - carbon KW - sulfur KW - coastal environment KW - sedimentary structures KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50317623?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Biogeochemical+cycles+of+carbon%2C+sulfur%2C+and+free+oxygen+in+a+microbial+mat&rft.au=Canfield%2C+Donald+E%3BDes+Marais%2C+David+J&rft.aulast=Canfield&rft.aufirst=Donald&rft.date=1993-08-01&rft.volume=57&rft.issue=16&rft.spage=3971&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990347-Y 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 - 1993-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - algal mats; algal structures; Baja California; biochemistry; biogenic processes; biogenic structures; carbon; coastal environment; Cyanobacteria; fixation; geochemical cycle; Guerrero Negro Mexico; Mexico; oxidation; oxygen; photochemistry; photosynthesis; sedimentary structures; sulfur DO - http://dx.doi.org/10.1016/0016-7037(93)90347-Y ER - TY - JOUR T1 - The need for land information in the hydrological sciences AN - 50136268; 1995-043240 JF - Proceedings of the Annual William T. Pecora Memorial Symposium on Remote Sensing AU - Engman, Edwin T AU - Anonymous Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 12 EP - 19 PB - [publisher unknown], [Washington, DC] VL - 12 SN - 0278-3878, 0278-3878 KW - hydrology KW - patterns KW - data acquisition KW - landform evolution KW - drainage KW - data processing KW - landforms KW - vegetation KW - satellite methods KW - models KW - climate KW - remote sensing KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50136268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+William+T.+Pecora+Memorial+Symposium+on+Remote+Sensing&rft.atitle=The+need+for+land+information+in+the+hydrological+sciences&rft.au=Engman%2C+Edwin+T%3BAnonymous&rft.aulast=Engman&rft.aufirst=Edwin&rft.date=1993-08-01&rft.volume=12&rft.issue=&rft.spage=12&rft.isbn=1570830142&rft.btitle=&rft.title=Proceedings+of+the+Annual+William+T.+Pecora+Memorial+Symposium+on+Remote+Sensing&rft.issn=02783878&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Pecora 12 symposium on Land information from space-based systems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 23 N1 - PubXState - DC] N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - climate; data acquisition; data processing; drainage; hydrology; landform evolution; landforms; models; patterns; remote sensing; satellite methods; vegetation ER - TY - JOUR T1 - Monitoring Earth land surface processes and resources from space AN - 50135534; 1995-043249 JF - Proceedings of the Annual William T. Pecora Memorial Symposium on Remote Sensing AU - Salomonson, Vincent V AU - Anonymous Y1 - 1993/08// PY - 1993 DA - August 1993 SP - 225 EP - 231 PB - [publisher unknown], [Washington, DC] VL - 12 SN - 0278-3878, 0278-3878 KW - methods KW - resources KW - monitoring KW - data processing KW - landforms KW - calibration KW - satellite methods KW - microwave methods KW - time factor KW - data bases KW - accuracy KW - remote sensing KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50135534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+William+T.+Pecora+Memorial+Symposium+on+Remote+Sensing&rft.atitle=Monitoring+Earth+land+surface+processes+and+resources+from+space&rft.au=Salomonson%2C+Vincent+V%3BAnonymous&rft.aulast=Salomonson&rft.aufirst=Vincent&rft.date=1993-08-01&rft.volume=12&rft.issue=&rft.spage=225&rft.isbn=1570830142&rft.btitle=&rft.title=Proceedings+of+the+Annual+William+T.+Pecora+Memorial+Symposium+on+Remote+Sensing&rft.issn=02783878&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Pecora 12 symposium on Land information from space-based systems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 20 N1 - PubXState - DC] N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; calibration; data bases; data processing; landforms; methods; microwave methods; monitoring; remote sensing; resources; satellite methods; time factor ER - TY - JOUR T1 - Hellas Planitia, Mars: Site of net dust erosion and implications for the nature of basin floor deposits AN - 1524426028; 19554134 AB - Hellas Planitia, located within an enclosed basin which includes the lowest topography on Mars, appears to be undergoing net erosion. Dust is removed from the basin. It probably contributes to global dust storms and should leave behind a coarse lag. The particle size distributions and particularly the rock or boulder populations in this lag might be useful for distinguishing between processes which formed the lithologic units that comprise Hellas Planitia. This report concludes that the abundance of rock particles larger than coarse sand is very low. Although this hypothesis awaits confirmation from forthcoming spacecraft data, the origins for Hellas floor deposits favored by this study are indurated volcanic airfall or ancient loess, lacustrine deposits, and some types of volcanic mud flows. The conclusions of this study tend to disfavor such geologic processes as blocky lava flows, glacial deposits (e.g., moraines), or boulder-laden catastrophic flood outwash. JF - Geophysical Research Letters AU - Moore, Jeffrey M AU - Edgett, Kenneth S AD - Center for Mars Exploration and the SETI Institute, NASA Ames Research Center. Y1 - 1993/08// PY - 1993 DA - Aug 1993 SP - 1599 EP - 1602 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 20 IS - 15 SN - 0094-8276, 0094-8276 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Basins KW - Volcanic activity KW - Glacial deposits KW - Floods KW - River Flow KW - Lava KW - Topography KW - Particle size distribution KW - Loess KW - Dust storms KW - Outwash KW - Dusts KW - Erosion KW - Moraines KW - SW 5010:Network design KW - AQ 00006:Sewage KW - M2 523.4:Planets (523.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1524426028?accountid=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=Geophysical+Research+Letters&rft.atitle=Hellas+Planitia%2C+Mars%3A+Site+of+net+dust+erosion+and+implications+for+the+nature+of+basin+floor+deposits&rft.au=Moore%2C+Jeffrey+M%3BEdgett%2C+Kenneth+S&rft.aulast=Moore&rft.aufirst=Jeffrey&rft.date=1993-08-01&rft.volume=20&rft.issue=15&rft.spage=1599&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL01302 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-05-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Particle size distribution; Erosion; Loess; Dust storms; Floods; Glacial deposits; Volcanic activity; Moraines; Lava; Topography; Outwash; Basins; River Flow; Dusts DO - http://dx.doi.org/10.1029/93GL01302 ER - TY - JOUR T1 - Localization using nonindividualized head-related transfer functions. AN - 85151427; pmid-8354753 AB - A recent development in human-computer interfaces is the virtual acoustic display, a device that synthesizes three-dimensional, spatial auditory information over headphones using digital filters constructed from head-related transfer functions (HRTFs). The utility of such a display depends on the accuracy with which listeners can localize virtual sound sources. A previous study [F. L. Wightman and D. J. Kistler, J. Acoust. Soc. Am. 85, 868-878 (1989)] observed accurate localization by listeners for free-field sources and for virtual sources generated from the subjects' own HRTFs. In practice, measurement of the HRTFs of each potential user of a spatial auditory display may not be feasible. Thus, a critical research question is whether listeners can obtain adequate localization cues from stimuli based on nonindividualized transforms. Here, inexperienced listeners judged the apparent direction (azimuth and elevation) of wideband noisebursts presented in the free-field or over headphones; headphone stimuli were synthesized using HRTFs from a representative subject of Wightman and Kistler. When confusions were resolved, localization of virtual sources was quite accurate and comparable to the free-field sources for 12 of the 16 subjects. Of the remaining subjects, 2 showed poor elevation accuracy in both stimulus conditions, and 2 showed degraded elevation accuracy with virtual sources. Many of the listeners also showed high rates of front-back and up-down confusions that increased significantly for virtual sources compared to the free-field stimuli. These data suggest that while the interaural cues to horizontal location are robust, the spectral cues considered important for resolving location along a particular cone-of-confusion are distorted by a synthesis process that uses nonindividualized HRTFs. JF - The Journal of the Acoustical Society of America AU - Wenzel, E M AU - Arruda, M AU - Kistler, D J AU - Wightman, Frederic Leonard AD - Aerospace Human Factors Research Division, NASA-Ames Research Center, Moffett Field, California 94035-1000.; Department of Psychological and Brain Sciences, College of Arts and Sciences, University of Louisville PY - 1993 SP - 111 EP - 123 VL - 94 IS - 1 SN - 0001-4966, 0001-4966 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85151427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+the+Acoustical+Society+of+America&rft.atitle=Localization+using+nonindividualized+head-related+transfer+functions.&rft.au=Wenzel%2C+E+M%3BArruda%2C+M%3BKistler%2C+D+J%3BWightman%2C+Frederic+Leonard&rft.aulast=Wenzel&rft.aufirst=E&rft.date=1993-07-01&rft.volume=94&rft.issue=1&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+the+Acoustical+Society+of+America&rft.issn=00014966&rft_id=info:doi/ LA - English DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - An experimental study of the organic molecules produced in cometary and interstellar ice analogs by thermal formaldehyde reactions AN - 51668386; 2005-069407 JF - Icarus (Online) AU - Schutte, W A AU - Allamandola, L J AU - Sandford, S A Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 118 EP - 137 PB - Elsevier VL - 104 IS - 1 SN - 1090-2643, 1090-2643 KW - hydrology KW - interstellar ice KW - experimental studies KW - techniques KW - formaldehyde KW - temperature KW - infrared spectra KW - organic compounds KW - comets KW - Halley's Comet KW - chemical reactions KW - ice KW - low temperature KW - planetology KW - thermally promoted formaldehyde KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51668386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=An+experimental+study+of+the+organic+molecules+produced+in+cometary+and+interstellar+ice+analogs+by+thermal+formaldehyde+reactions&rft.au=Schutte%2C+W+A%3BAllamandola%2C+L+J%3BSandford%2C+S+A&rft.aulast=Schutte&rft.aufirst=W&rft.date=1993-07-01&rft.volume=104&rft.issue=1&rft.spage=118&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1993.1087 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical reactions; comets; experimental studies; formaldehyde; Halley's Comet; hydrology; ice; infrared spectra; interstellar ice; low temperature; organic compounds; planetology; spectra; techniques; temperature; thermally promoted formaldehyde DO - http://dx.doi.org/10.1006/icar.1993.1087 ER - TY - JOUR T1 - Trace-element analysis of magmatic inclusions in ALHA 77005 by micro-INAA AN - 51446103; 2007-047804 JF - Meteoritics AU - Lindstrom, D J AU - Treiman, A H AU - Martinez, R R AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 386 EP - 387 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - stony meteorites KW - Martian meteorites KW - achondrites KW - SNC Meteorites KW - meteorites KW - Allan Hills Meteorites KW - Antarctica KW - shergottite KW - sampling KW - ALHA 77005 KW - metals KW - magmas KW - inclusions KW - parent materials KW - petrography KW - rare earths KW - trace elements KW - interpretation KW - chemical composition KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51446103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Trace-element+analysis+of+magmatic+inclusions+in+ALHA+77005+by+micro-INAA&rft.au=Lindstrom%2C+D+J%3BTreiman%2C+A+H%3BMartinez%2C+R+R%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Lindstrom&rft.aufirst=D&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=386&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 4 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; ALHA 77005; Allan Hills Meteorites; Antarctica; chemical composition; inclusions; interpretation; magmas; Martian meteorites; metals; meteorites; parent materials; petrography; rare earths; sampling; shergottite; SNC Meteorites; stony meteorites; trace elements ER - TY - JOUR T1 - CaO partitioning between olivine and melt in highly magnesian systems AN - 51445862; 2007-047806 JF - Meteoritics AU - Lofgren, G E AU - Jurewicz, A J G AU - DeHart, J M AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 387 EP - 388 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - silicates KW - stony meteorites KW - olivine group KW - crystal growth KW - melts KW - nesosilicates KW - models KW - partitioning KW - meteorites KW - mineral composition KW - calcium oxides KW - chondrules KW - olivine KW - orthosilicates KW - oxides KW - chondrites KW - P-T conditions KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=CaO+partitioning+between+olivine+and+melt+in+highly+magnesian+systems&rft.au=Lofgren%2C+G+E%3BJurewicz%2C+A+J+G%3BDeHart%2C+J+M%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Lofgren&rft.aufirst=G&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 10 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - calcium oxides; chondrites; chondrules; crystal growth; melts; meteorites; mineral composition; models; nesosilicates; olivine; olivine group; orthosilicates; oxides; P-T conditions; partitioning; silicates; stony meteorites ER - TY - JOUR T1 - Influence of Murchison minerals on hydrocarbon-deuterium exchange of amino acids AN - 51445843; 2007-047803 JF - Meteoritics AU - Lerner, N R AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 385 EP - 386 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - stony meteorites KW - isotopes KW - isotope ratios KW - effects KW - carbonaceous chondrites KW - stable isotopes KW - Murchison Meteorite KW - meteorites KW - organic compounds KW - organic acids KW - D/H KW - hydrogen KW - amino acids KW - deuterium KW - CM chondrites 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/51445843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Influence+of+Murchison+minerals+on+hydrocarbon-deuterium+exchange+of+amino+acids&rft.au=Lerner%2C+N+R%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Lerner&rft.aufirst=N&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=385&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 6 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - amino acids; carbonaceous chondrites; chemical composition; chondrites; CM chondrites; D/H; deuterium; effects; hydrogen; isotope ratios; isotopes; meteorites; Murchison Meteorite; organic acids; organic compounds; stable isotopes; stony meteorites ER - TY - JOUR T1 - Aqueous alteration of the Grosnaja CV3 carbonaceous chondrite AN - 51445817; 2007-047789 JF - Meteoritics AU - Keller, L P AU - McKay, D S AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 378 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - carbonaceous composition KW - meteorites KW - mineral composition KW - stony meteorites KW - petrography KW - Grosnaja Meteorite KW - carbonaceous chondrites KW - CV chondrites KW - chondrites KW - chemical composition KW - TEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Aqueous+alteration+of+the+Grosnaja+CV3+carbonaceous+chondrite&rft.au=Keller%2C+L+P%3BMcKay%2C+D+S%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Keller&rft.aufirst=L&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=378&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 4 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; carbonaceous composition; chemical composition; chondrites; CV chondrites; Grosnaja Meteorite; meteorites; mineral composition; petrography; stony meteorites; TEM data ER - TY - JOUR T1 - Petrology and geochemistry of LEW 88663 and PAT91501; high petrological chondrites AN - 51445725; 2007-047828 JF - Meteoritics AU - Mittlefehldt, D W AU - Lindstrom, M M AU - Field, S W AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 401 EP - 402 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - meteorites KW - PAT 91501 KW - mineral composition KW - stony meteorites KW - LEW 88663 KW - interpretation KW - chondrites KW - chemical composition KW - geochemistry KW - achondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Petrology+and+geochemistry+of+LEW+88663+and+PAT91501%3B+high+petrological+chondrites&rft.au=Mittlefehldt%2C+D+W%3BLindstrom%2C+M+M%3BField%2C+S+W%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Mittlefehldt&rft.aufirst=D&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=401&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 6 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; chemical composition; chondrites; geochemistry; interpretation; LEW 88663; meteorites; mineral composition; PAT 91501; stony meteorites ER - TY - JOUR T1 - Asteroidal agglutinate particles as a component of anhydrous interplanetary dust AN - 51445673; 2007-047790 JF - Meteoritics AU - Keller, L P AU - Thomas, K L AU - McKay, D S AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 378 EP - 379 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - processes KW - genesis KW - mineral composition KW - asteroids KW - grain size KW - interpretation KW - interplanetary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Asteroidal+agglutinate+particles+as+a+component+of+anhydrous+interplanetary+dust&rft.au=Keller%2C+L+P%3BThomas%2C+K+L%3BMcKay%2C+D+S%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Keller&rft.aufirst=L&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=378&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 6 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; genesis; grain size; interplanetary dust; interpretation; mineral composition; particles; processes ER - TY - JOUR T1 - Microscale variations in the (super 13) C content of the Murchison Meteorite AN - 51445483; 2007-047863 JF - Meteoritics AU - Romanek, C S AU - Gibson, E AU - Socki, R AU - Burkett, P J AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 423 EP - 424 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - stony meteorites KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - carbonaceous chondrites KW - stable isotopes KW - variations KW - Murchison Meteorite KW - meteorites KW - mineral composition KW - carbon KW - C-13 KW - CM chondrites KW - interpretation KW - chondrites KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Microscale+variations+in+the+%28super+13%29+C+content+of+the+Murchison+Meteorite&rft.au=Romanek%2C+C+S%3BGibson%2C+E%3BSocki%2C+R%3BBurkett%2C+P+J%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Romanek&rft.aufirst=C&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=423&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 4 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - C-13; C-13/C-12; carbon; carbonaceous chondrites; chondrites; CM chondrites; interpretation; isotope ratios; isotopes; meteorites; mineral composition; Murchison Meteorite; stable isotopes; stony meteorites; variations ER - TY - JOUR T1 - Experimental partitioning of As and Sb among metal, troilite, schreibersite, barringerite, and metallic liquid AN - 51445416; 2007-047784 JF - Meteoritics AU - Jones, J H AU - Casanova, I AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 374 EP - 375 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - experimental studies KW - antimony KW - arsenic KW - phosphides KW - barringerite KW - partitioning KW - meteorites KW - schreibersite KW - iron meteorites KW - metals KW - alloys KW - interpretation 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/51445416?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Experimental+partitioning+of+As+and+Sb+among+metal%2C+troilite%2C+schreibersite%2C+barringerite%2C+and+metallic+liquid&rft.au=Jones%2C+J+H%3BCasanova%2C+I%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Jones&rft.aufirst=J&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=374&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 5 N1 - PubXState - AZ N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alloys; antimony; arsenic; barringerite; chemical composition; experimental studies; interpretation; iron meteorites; metals; meteorites; partitioning; phosphides; schreibersite; sulfides; troilite ER - TY - JOUR T1 - Isotopic studies of angrite Lew 86010 and the early history of its parent body AN - 51445407; 2007-047849 JF - Meteoritics AU - Nyquist, L E AU - Wiesmann, H AU - Bansal, B AU - Shih, C Y AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 414 EP - 415 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - Pb/Pb KW - stony meteorites KW - Precambrian KW - Lewis Cliff Meteorites KW - LEW 86010 KW - angrite KW - Paleoarchean KW - achondrites KW - meteorites KW - Sm/Nd KW - dates KW - age KW - absolute age KW - Archean KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Isotopic+studies+of+angrite+Lew+86010+and+the+early+history+of+its+parent+body&rft.au=Nyquist%2C+L+E%3BWiesmann%2C+H%3BBansal%2C+B%3BShih%2C+C+Y%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Nyquist&rft.aufirst=L&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=414&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 15 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; age; angrite; Archean; dates; LEW 86010; Lewis Cliff Meteorites; meteorites; Paleoarchean; Pb/Pb; Precambrian; Sm/Nd; stony meteorites ER - TY - JOUR T1 - The nature of reduction in space weathering AN - 51445173; 2007-047817 JF - Meteoritics AU - McKay, D S AU - Allen, C C AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 394 EP - 395 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - processes KW - space weathering KW - sampling KW - Moon KW - reduction KW - interplanetary space KW - weathering KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445173?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=The+nature+of+reduction+in+space+weathering&rft.au=McKay%2C+D+S%3BAllen%2C+C+C%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=McKay&rft.aufirst=D&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=394&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 9 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - interplanetary space; Moon; processes; reduction; sampling; space weathering; weathering ER - TY - JOUR T1 - Determinations of solar proton spectrum in lunar rock 68815 AN - 51444931; 2007-047744 JF - Meteoritics AU - Garrison, D H AU - Rao, M N AU - Bogard, D D AU - Reedy, R C AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 351 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - Lunar Sample 68815 KW - alkaline earth metals KW - Be-10 KW - Moon KW - isotopes KW - manganese KW - krypton KW - Mn-53 KW - Kr-81 KW - Al-26 KW - lunar samples KW - radioactive isotopes KW - sampling KW - noble gases KW - metals KW - carbon KW - aluminum KW - age KW - C-14 KW - chemical composition KW - rocks KW - beryllium KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51444931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Determinations+of+solar+proton+spectrum+in+lunar+rock+68815&rft.au=Garrison%2C+D+H%3BRao%2C+M+N%3BBogard%2C+D+D%3BReedy%2C+R+C%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Garrison&rft.aufirst=D&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=351&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 6 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - age; Al-26; alkaline earth metals; aluminum; Be-10; beryllium; C-14; carbon; chemical composition; isotopes; Kr-81; krypton; Lunar Sample 68815; lunar samples; manganese; metals; Mn-53; Moon; noble gases; radioactive isotopes; rocks; sampling ER - TY - JOUR T1 - Minor elements in Nakhla cumulus pyroxenes AN - 51444869; 2007-047818 JF - Meteoritics AU - McKay, G A AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 395 EP - 396 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - silicates KW - nakhlite KW - stony meteorites KW - minor elements KW - Martian meteorites KW - Nakhla Meteorite KW - achondrites KW - melts KW - variations KW - SNC Meteorites KW - genesis KW - meteorites KW - pyroxene group KW - parent materials KW - chemical composition KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51444869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Minor+elements+in+Nakhla+cumulus+pyroxenes&rft.au=McKay%2C+G+A%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=McKay&rft.aufirst=G&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=395&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 5 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; chain silicates; chemical composition; genesis; Martian meteorites; melts; meteorites; minor elements; Nakhla Meteorite; nakhlite; parent materials; pyroxene group; silicates; SNC Meteorites; stony meteorites; variations ER - TY - JOUR T1 - An alteration scale for CM chondrites and implications for planetary noble gas abundances AN - 51444212; 2007-047712 JF - Meteoritics AU - Browning, L B AU - McSween, H Y, Jr AU - Zolensky, M AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 331 EP - 332 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - meteorites KW - alteration KW - mineral composition KW - stony meteorites KW - noble gases KW - CM chondrites KW - carbonaceous chondrites KW - chondrites KW - geochemistry KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51444212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=An+alteration+scale+for+CM+chondrites+and+implications+for+planetary+noble+gas+abundances&rft.au=Browning%2C+L+B%3BMcSween%2C+H+Y%2C+Jr%3BZolensky%2C+M%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Browning&rft.aufirst=L&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 6 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alteration; carbonaceous chondrites; chondrites; CM chondrites; geochemistry; meteorites; mineral composition; noble gases; stony meteorites ER - TY - JOUR T1 - Petrology and geochemistry of Acapulco and Lodran-like achondrites AN - 51444046; 2007-047738 JF - Meteoritics AU - Field, S W AU - Lindstrom, M M AU - Mittlefehldt, D W AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 347 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - processes KW - stony meteorites KW - metamorphism KW - achondrites KW - temperature KW - meteorites KW - mineral composition KW - inclusions KW - classification KW - interpretation KW - geochemistry KW - high temperature KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51444046?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Petrology+and+geochemistry+of+Acapulco+and+Lodran-like+achondrites&rft.au=Field%2C+S+W%3BLindstrom%2C+M+M%3BMittlefehldt%2C+D+W%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Field&rft.aufirst=S&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=347&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 8 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; classification; geochemistry; high temperature; inclusions; interpretation; metamorphism; meteorites; mineral composition; processes; stony meteorites; temperature ER - TY - JOUR T1 - (super 39) Ar- (super 40) Ar dating of eucrites and howardites and the early bombardment of the HED parent body AN - 51443983; 2007-047703 JF - Meteoritics AU - Bogard, D D AU - Garrison, D H AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 325 EP - 326 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - Ar/Ar KW - breccia KW - stony meteorites KW - parent bodies KW - achondrites KW - melts KW - meteorites KW - howardite KW - dates KW - age KW - absolute age KW - eucrite KW - crystallization KW - chemical composition KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51443983?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=%28super+39%29+Ar-+%28super+40%29+Ar+dating+of+eucrites+and+howardites+and+the+early+bombardment+of+the+HED+parent+body&rft.au=Bogard%2C+D+D%3BGarrison%2C+D+H%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Bogard&rft.aufirst=D&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 5 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; age; Ar/Ar; breccia; chemical composition; crystallization; dates; eucrite; howardite; melts; meteorites; parent bodies; stony meteorites ER - TY - JOUR T1 - Carbon isotopic measurements of third-generation salts from LEW 85320 AN - 51443705; 2007-047730 JF - Meteoritics AU - Douglas, C AU - Wright, I P AU - Grady, M M AU - Romanek, C S AU - Pillinger, C T AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 341 EP - 342 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - chemical weathering KW - experimental studies KW - stony meteorites KW - isotopes KW - Martian meteorites KW - Lewis Cliff Meteorites KW - isotope ratios KW - C-13/C-12 KW - achondrites KW - weathering KW - stable isotopes KW - temperature KW - measurement KW - SNC Meteorites KW - meteorites KW - carbon KW - LEW 85320 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/51443705?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Carbon+isotopic+measurements+of+third-generation+salts+from+LEW+85320&rft.au=Douglas%2C+C%3BWright%2C+I+P%3BGrady%2C+M+M%3BRomanek%2C+C+S%3BPillinger%2C+C+T%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Douglas&rft.aufirst=C&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 3 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; C-13/C-12; carbon; chemical weathering; experimental studies; geochemistry; isotope ratios; isotopes; LEW 85320; Lewis Cliff Meteorites; Martian meteorites; measurement; meteorites; SNC Meteorites; stable isotopes; stony meteorites; temperature; weathering ER - TY - JOUR T1 - Meteorite ablation rinds as analogs for the origin of rims on chondrules AN - 51443685; 2007-047716 JF - Meteoritics AU - Bunch, T AU - Paque, J M AU - Reynolds, R AU - Podolak, M AU - Prialnik, D AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 334 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - genesis KW - carbonaceous composition KW - meteorites KW - accretion KW - ablation KW - chondrules KW - parent materials KW - chemical composition KW - zoning KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51443685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Meteorite+ablation+rinds+as+analogs+for+the+origin+of+rims+on+chondrules&rft.au=Bunch%2C+T%3BPaque%2C+J+M%3BReynolds%2C+R%3BPodolak%2C+M%3BPrialnik%2C+D%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Bunch&rft.aufirst=T&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=334&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 7 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - ablation; accretion; carbonaceous composition; chemical composition; chondrules; genesis; meteorites; parent materials; zoning ER - TY - JOUR T1 - Calorimetric thermometry of meteoritic troilite; early reconnaissance AN - 51443632; 2007-047686 JF - Meteoritics AU - Allton, J H AU - Wentworth, S J AU - Gooding, J L AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 315 EP - 316 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - meteorites KW - geologic thermometry KW - stony meteorites KW - sampling KW - iron meteorites KW - octahedrite KW - chondrites KW - sulfides KW - geochemistry KW - troilite KW - temperature KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51443632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Calorimetric+thermometry+of+meteoritic+troilite%3B+early+reconnaissance&rft.au=Allton%2C+J+H%3BWentworth%2C+S+J%3BGooding%2C+J+L%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Allton&rft.aufirst=J&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=315&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 3 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chondrites; geochemistry; geologic thermometry; iron meteorites; meteorites; octahedrite; sampling; stony meteorites; sulfides; temperature; troilite ER - TY - JOUR T1 - Particle-gas dynamics and primitive meteorite parent bodies AN - 51443048; 2007-047726 JF - Meteoritics AU - Cuzzi, J N AU - Dobrovolskis, A R AU - Champney, J M AU - Hogan, R M AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 339 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - meteorites KW - accretion KW - density KW - dynamics KW - parent bodies KW - particles KW - gases KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51443048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Particle-gas+dynamics+and+primitive+meteorite+parent+bodies&rft.au=Cuzzi%2C+J+N%3BDobrovolskis%2C+A+R%3BChampney%2C+J+M%3BHogan%2C+R+M%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Cuzzi&rft.aufirst=J&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 8 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - accretion; density; dynamics; gases; meteorites; parent bodies; particles ER - TY - JOUR T1 - Possible clues to the physical nature of chondrule precursors; an experimental study using flash melting conditions AN - 51443022; 2007-047725 JF - Meteoritics AU - Connolly, H C, Jr AU - Hewins, R H AU - Lofgren, G E AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 338 EP - 339 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - processes KW - genesis KW - meteorites KW - physical properties KW - experimental studies KW - melting KW - chondrules KW - composition KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51443022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Possible+clues+to+the+physical+nature+of+chondrule+precursors%3B+an+experimental+study+using+flash+melting+conditions&rft.au=Connolly%2C+H+C%2C+Jr%3BHewins%2C+R+H%3BLofgren%2C+G+E%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Connolly&rft.aufirst=H&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=338&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 4 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chondrules; composition; experimental studies; genesis; melting; meteorites; physical properties; processes ER - TY - JOUR T1 - Chondritic interplanetary dust particles; mineral compositions and petrofabrics AN - 51442834; 2007-047938 JF - Meteoritics AU - Zolensky, M AU - Barrett, R AU - Burkett, P J AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 469 EP - 470 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - meteorites KW - mineral composition KW - stony meteorites KW - petrofabrics KW - interpretation KW - fabric KW - chondrites KW - interplanetary dust KW - particles KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51442834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Chondritic+interplanetary+dust+particles%3B+mineral+compositions+and+petrofabrics&rft.au=Zolensky%2C+M%3BBarrett%2C+R%3BBurkett%2C+P+J%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Zolensky&rft.aufirst=M&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=469&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 5 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chondrites; fabric; interplanetary dust; interpretation; meteorites; mineral composition; particles; petrofabrics; stony meteorites ER - TY - JOUR T1 - Phyllosilicates in the carbonaceous chondrite breccia Kaidun AN - 51442263; 2007-047931 JF - Meteoritics AU - Yang, S V AU - Zolensky, M AU - Golden, D C AU - Ming, D W AU - Ivanov, A AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 464 EP - 465 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - silicates KW - meteorites KW - Kaidun Meteorite KW - mineral composition KW - breccia KW - stony meteorites KW - sheet silicates KW - carbonaceous chondrites KW - interpretation KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51442263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Phyllosilicates+in+the+carbonaceous+chondrite+breccia+Kaidun&rft.au=Yang%2C+S+V%3BZolensky%2C+M%3BGolden%2C+D+C%3BMing%2C+D+W%3BIvanov%2C+A%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Yang&rft.aufirst=S&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=464&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 5 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - breccia; carbonaceous chondrites; chondrites; interpretation; Kaidun Meteorite; meteorites; mineral composition; sheet silicates; silicates; stony meteorites ER - TY - JOUR T1 - D/H exchange reactions in salts extracted from LEW 85320 AN - 51441122; 2007-047890 JF - Meteoritics AU - Socki, R A AU - Romanek, C S AU - Gibson, E K, Jr AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 440 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - experimental studies KW - stony meteorites KW - oxygen KW - isotopes KW - Lewis Cliff Meteorites KW - isotope ratios KW - O-18/O-16 KW - weathering KW - stable isotopes KW - meteorites KW - Antarctica KW - chemical reactions KW - D/H KW - hydrogen KW - LEW 85320 KW - interpretation KW - chondrites KW - chemical composition KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51441122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=D%2FH+exchange+reactions+in+salts+extracted+from+LEW+85320&rft.au=Socki%2C+R+A%3BRomanek%2C+C+S%3BGibson%2C+E+K%2C+Jr%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Socki&rft.aufirst=R&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=440&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 3 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Antarctica; chemical composition; chemical reactions; chondrites; D/H; experimental studies; hydrogen; interpretation; isotope ratios; isotopes; LEW 85320; Lewis Cliff Meteorites; meteorites; O-18/O-16; oxygen; stable isotopes; stony meteorites; weathering ER - TY - JOUR T1 - Shock and impactor signatures in Rio Cuarto impactites, Argentina AN - 51440826; 2007-047877 JF - Meteoritics AU - Schultz, P H AU - Koeberl, Christian AU - Bunch, T AU - King, Trude V V AU - Ridley, Ian Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 432 EP - 433 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 3 SN - 0026-1114, 0026-1114 KW - volcanic rocks KW - stony meteorites KW - pressure KW - impact features KW - glasses KW - igneous rocks KW - meteor craters KW - metamorphism KW - meteorites KW - South America KW - mineral composition KW - Argentina KW - impact craters KW - Rio Cuarto crater field KW - interpretation KW - chondrites KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51440826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Shock+and+impactor+signatures+in+Rio+Cuarto+impactites%2C+Argentina&rft.au=Schultz%2C+P+H%3BKoeberl%2C+Christian%3BBunch%2C+T%3BKing%2C+Trude+V+V%3BRidley%2C+Ian&rft.aulast=Schultz&rft.aufirst=P&rft.date=1993-07-01&rft.volume=28&rft.issue=3&rft.spage=432&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 56th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 5 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Argentina; chondrites; glasses; igneous rocks; impact craters; impact features; interpretation; metamorphism; meteor craters; meteorites; mineral composition; pressure; Rio Cuarto crater field; shock metamorphism; South America; stony meteorites; volcanic rocks ER - TY - JOUR T1 - Stable isotopic biogeochemistry of carbon and nitrogen in a perennially ice-covered Antarctic lake AN - 50342047; 1993-023314 AB - Lake Hoare (77 degrees 38'S, 162 degrees 53'E) is an amictic, oligotrophic, 34-m-deep, closed-basin lake in Taylor Valley, Antarctica. Its perennial ice cover minimizes wind-generated currents and reduces light penetration, as well as restricts sediment deposition into the lake and the exchange of atmospheric gases between the water column and the atmosphere. The biological community of Lake Hoare consists solely of microorganisms -- both planktonic populations and benthic microbial mats. Lake Hoare is one of several perennially ice-covered lakes in the McMurdo Dry Valleys that represent the end-member conditions of cold desert and saline lakes. The dry valley lakes provide a unique opportunity to examine lacustrine processes that operate at all latitudes, but under an extreme set of environmental conditions. The dry valley lakes may also offer a valuable record of catchment and global changes in the past and present. Furthermore, these lakes are modern-day equivalents of periglacial lakes that are likely to have been common during periods of glacial maxima at temperate latitudes. We have analyzed the dissolved inorganic carbon (DIC) of Lake Hoare for delta (super 13) C and the organic matter of the sediments and sediment-trap material for delta (super 13) C and delta (super 15) N. The delta (super 13) C of the DIC indicates that (super 12) C is differentially removed in the shallow, oxic portions of the lake via photosynthesis. In the anoxic portions of the lake (27-34 m) a net addition of (super 12) C to the DIC pool occurs via organic matter decomposition. The dissolution of CaCO (sub 3) at depth also contributes to the DIC pool. Except near the Canada Glacier where a substantial amount of allochthonous organic matter enters the lake, the organic carbon being deposited on the lake bottom at different sites is isotopically similar, suggesting an autochthonous source for the organic carbon. Preliminary inorganic carbon flux calculations suggest that a high percentage of the organic carbon fixed in the water column is remineralized as it falls through the water column. At nearby Lake Fryxell, the substantial (relative to Lake Hoare) glacial meltstream input overprints Fryxell's shallow-water biological delta (super 13) C signal with delta (super 13) C-depleted DIC. In contrast, Lake Hoare is not significantly affected by surface-water input and mixing, and therefore the delta (super 13) C patterns observed arise primarily from biological dynamics within the lake. Organic matter in Lake Hoare is depleted in (super 15) N, which we suggest is partially the result of the addition of relatively light inorganic nitrogen into the lake system from terrestrial sources. JF - Chemical Geology AU - Wharton, Robert A, Jr AU - Lyons, W Berry AU - Des Marais, David J Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 159 EP - 172 PB - Elsevier, Amsterdam VL - 107 IS - 1-2 SN - 0009-2541, 0009-2541 KW - organic materials KW - hydrology KW - McMurdo Dry Valleys KW - benthic taxa KW - N-15/N-14 KW - isotopes KW - isotope ratios KW - biochemistry KW - Victoria Island KW - C-13/C-12 KW - planktonic taxa KW - dry valleys KW - stable isotopes KW - Taylor Valley KW - nitrogen KW - organic compounds KW - Antarctica KW - Lake Hoare KW - ice KW - carbon KW - lacustrine environment KW - Victoria Land KW - microorganisms KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50342047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stable+isotopic+biogeochemistry+of+carbon+and+nitrogen+in+a+perennially+ice-covered+Antarctic+lake&rft.au=Wharton%2C+Robert+A%2C+Jr%3BLyons%2C+W+Berry%3BDes+Marais%2C+David+J&rft.aulast=Wharton&rft.aufirst=Robert&rft.date=1993-07-01&rft.volume=107&rft.issue=1-2&rft.spage=159&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 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1993-01-01 N1 - Number of references - 58 N1 - Document feature - illus. incl. 4 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - Antarctica; benthic taxa; biochemistry; C-13/C-12; carbon; dry valleys; hydrology; ice; isotope ratios; isotopes; lacustrine environment; Lake Hoare; McMurdo Dry Valleys; microorganisms; N-15/N-14; nitrogen; organic compounds; organic materials; planktonic taxa; stable isotopes; Taylor Valley; Victoria Island; Victoria Land ER - TY - JOUR T1 - The violent environment of the origin of life; progress and uncertainties AN - 50330868; 1993-027462 AB - The terrestrial origin of life coincided with the last stages of the heavy bombardment of the inner Solar System; this bombardment is known mainly from lunar samples. Impactors would deliver key biogenic elements (e.g. C, N (sub 2) ) to the Earth's surface and perhaps intact organic molecules. The uncertainties involved in the theory are discussed. JF - Geochimica et Cosmochimica Acta AU - Chyba, Christopher F A2 - Macko, Stephen A. A2 - Engel, Michael H. A2 - Shock, Everett L. Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 3351 EP - 3358 PB - Pergamon, Oxford VL - 57 IS - 14 SN - 0016-7037, 0016-7037 KW - stromatolites KW - impact features KW - carbon KW - biogenic structures KW - hydrothermal vents KW - impacts KW - sedimentary structures KW - life origin KW - nitrogen KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50330868?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+violent+environment+of+the+origin+of+life%3B+progress+and+uncertainties&rft.au=Chyba%2C+Christopher+F&rft.aulast=Chyba&rft.aufirst=Christopher&rft.date=1993-07-01&rft.volume=57&rft.issue=14&rft.spage=3351&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990543-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - Special symposium Survivability of organic matters at high temperatures; implications for life N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1993-01-01 N1 - Number of references - 65 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - biogenic structures; carbon; hydrothermal vents; impact features; impacts; life origin; nitrogen; sedimentary structures; stromatolites DO - http://dx.doi.org/10.1016/0016-7037(93)90543-6 ER - TY - JOUR T1 - Mineralogy and composition of matrix and chondrule rims in carbonaceous chondrites AN - 50259066; 1994-018794 AB - EPMA data are presented of matrices and rims from 38 meteorites, with a summary of their mineralogy and TEM images of serpentine, saponite, tochilinite and other phases. The variation of fine- grained minerals in any one group reflects the range of aqueous alteration phases present. Geochemical models are discussed of the evolution of hydrous asteroids on the basis of these results. The effects of high-T metamorphism and brecciation contribute to the degree of heterogeneity of matrix compositions, but there appears to be a direct correlation of matrix and rim compositional heterogeneity with degree of aqueous alteration within each chondrite type. JF - Geochimica et Cosmochimica Acta AU - Zolensky, Michael AU - Barrett, Ruth AU - Browning, Lauren Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 3123 EP - 3148 PB - Pergamon, Oxford VL - 57 IS - 13 SN - 0016-7037, 0016-7037 KW - carbonaceous composition KW - meteorites KW - stony meteorites KW - chondrules KW - aqueous solutions KW - chondrites KW - fugacity KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50259066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogy+and+composition+of+matrix+and+chondrule+rims+in+carbonaceous+chondrites&rft.au=Zolensky%2C+Michael%3BBarrett%2C+Ruth%3BBrowning%2C+Lauren&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=1993-07-01&rft.volume=57&rft.issue=13&rft.spage=3123&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990298-B 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 - 1994-01-01 N1 - Number of references - 78 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; carbonaceous composition; chondrites; chondrules; fugacity; meteorites; stony meteorites DO - http://dx.doi.org/10.1016/0016-7037(93)90298-B ER - TY - JOUR T1 - Neptune's magnetic field; calculation of field geometric invariants derived from the I8E1 GSFC/BRI model AN - 50174117; 1993-037645 AB - A simplified description of the Neptunian magnetic field derived from the Goddard Space Flight Center/Bartol Research Institute I8E1 model which includes internal terms up to and including the octupole (but no external terms) has been used to compute numerically L shell values along the Voyager 2 encounter trajectory and those associated with the N1 through N6 moons and N1R through N6R rings. The complex magnetic field geometry and the rapid rotation of the planet combine to produce an expectation of numerous times when absorption signatures should be observed as a result of the interaction between the trapped particle population and the Neptunian moons and rings. Thus a complete understanding of the observed charged particle fluxes and their variation along the Voyager 2 trajectory must take into account these geometrically anticipated interactions. Similar to Uranus, the large tilt between the dipole term and the rotation axis causes the moons and rings to sweep a very large range of L shells. Furthermore, their orbital motion introduces additional periodicities, causing the maxima and minima in L space to vary systematically with time. The unambiguous association of predicted and observed absorption signatures and times with a particular ring or moon is made very difficult by the superposition of many individual effects. The extremely rapid excursion in L space by Voyager 2 near closest approach, a region most significant for magnetic field models, apparently does not facilitate the unique associations previously used at other planets to provide an independent assessment of the global accuracy of the mathematical models of the field which are inherently nonunique. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Acuna, M H AU - Connerney, J E P AU - Ness, N F Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 11 EP - 11,284 PB - American Geophysical Union, Washington, DC VL - 98 IS - A7 SN - 0148-0227, 0148-0227 KW - planets KW - planetary rings KW - theoretical studies KW - numerical models KW - Voyager Program KW - outer planets KW - Neptune KW - magnetic field KW - giant planets KW - geometry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50174117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Neptune%27s+magnetic+field%3B+calculation+of+field+geometric+invariants+derived+from+the+I8E1+GSFC%2FBRI+model&rft.au=Acuna%2C+M+H%3BConnerney%2C+J+E+P%3BNess%2C+N+F&rft.aulast=Acuna&rft.aufirst=M&rft.date=1993-07-01&rft.volume=98&rft.issue=A7&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JA02981 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - geometry; giant planets; magnetic field; Neptune; numerical models; outer planets; planetary rings; planets; theoretical studies; Voyager Program DO - http://dx.doi.org/10.1029/92JA02981 ER - TY - JOUR T1 - On the energy budget in the current disruption region AN - 1671525635; 19554130 AB - This study investigates the energy budget in the current disruption region of the magnetotail, coincident with a pre-onset thin current sheet, around substorm onset time using published observational data and theoretical estimates. We find that the current disruption/dipolarization process typically requires energy inflow into the primary disruption region. The disruption dipolarization process is therefore endoenergetic, i.e., requires energy input to operate. Therefore we argue that some other simultaneously operating process, possibly a large scale magnetotail instability, is required to provide the necessary energy input into the current disruption region. JF - Geophysical Research Letters AU - Hesse, Michael AU - Birn, Joachim AD - Electrodynamics Branch, NASA/Goddard Space Flight Center, Greenbelt, MD 20771. Y1 - 1993/07// PY - 1993 DA - Jul 1993 SP - 1451 EP - 1454 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 20 IS - 14 SN - 0094-8276, 0094-8276 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Energy budgets KW - Estimates KW - Inflow KW - Current sheets KW - Disruption KW - Geophysics KW - Stability KW - Instability UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671525635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=On+the+energy+budget+in+the+current+disruption+region&rft.au=Hesse%2C+Michael%3BBirn%2C+Joachim&rft.aulast=Hesse&rft.aufirst=Michael&rft.date=1993-07-01&rft.volume=20&rft.issue=14&rft.spage=1451&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL01587 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-06-01 N1 - Last updated - 2015-04-09 DO - http://dx.doi.org/10.1029/93GL01587 ER - TY - JOUR T1 - An evaluation of the rate of absorption of solar radiation in the O sub(2)(X super(3) capital sigma sub(g) arrow right b super(1) capital sigma sub(g)) transition AN - 1529922769; 19554127 AB - The rate at which molecular oxygen absorbs radiation in the O sub(2)(X super(3) capital sigma sub(g) arrow right b super(1) capital sigma sub(g)) transition is calculated using a line-by-line radiative transfer model. This rate is critical to the determination of the population of the O sub(2)(b super(1) capital sigma sub(g)) state required for studies of the O sub(2)(b super(1) capital sigma sub(g) arrow right X super(3) capital sigma sub(g)) dayglow, the O sub(2)(a super(1) Delta sub(g) arrow right X super(3) capital sigma sub(g)) dayglow, and possibly the rates of oxidation of H sub(2) and N sub(2)O. Previous evaluations of this rate (which is sometimes called the g-factor) have significantly overestimated its value. The rate is tabulated as a function of altitude, pressure, and solar zenith angle. JF - Geophysical Research Letters AU - Mlynczak, Martin G AD - NASA Langley Research Center, Hampton, VA. Y1 - 1993/07// PY - 1993 DA - July 1993 SP - 1439 EP - 1442 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 20 IS - 14 SN - 0094-8276, 0094-8276 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Nitrous oxides KW - Altitude KW - Zenith KW - Mathematical models KW - Dayglow KW - Radiative transfer KW - Geophysics KW - Solar radiation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529922769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=An+evaluation+of+the+rate+of+absorption+of+solar+radiation+in+the+O+sub%282%29%28X+super%283%29+capital+sigma+sub%28g%29+arrow+right+b+super%281%29+capital+sigma+sub%28g%29%29+transition&rft.au=Mlynczak%2C+Martin+G&rft.aulast=Mlynczak&rft.aufirst=Martin&rft.date=1993-07-01&rft.volume=20&rft.issue=14&rft.spage=1439&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL01457 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-06-01 N1 - Last updated - 2017-01-05 DO - http://dx.doi.org/10.1029/93GL01457 ER - TY - JOUR T1 - Flood basalts and extinction events AN - 1524427533; 19554094 AB - The largest known effusive eruptions during the Cenozoic and Mesozoic Eras, the voluminous flood basalts, have long been suspected as being associated with major extinctions of biotic species. Despite the possible errors attached to the dates in both time series of events, the significance level of the suspected correlation is found here, by an objective, direct method, to be 1% to 4%. Statistically, extinctions lag eruptions by a mean time interval that is indistinguishable from zero, being much less than the average residual derived from the correlation analysis. Oceanic flood basalts, however, must have had a different biological impact, which is still uncertain owing to the small number of known examples and differing physical factors. Although not all continental flood basalts can have produced major extinction events, the non-correlating eruptions (including most or all of the oceanic flood basalts) may have led to smaller marine extinciton events that terminated at least some of the less catastrophically ending geologic stages. Consequently, the 26 Myr quasiperiodicity seen in major marine extinctions may be only a sampling effect, rather than a manifestation of underlying periodicity. JF - Geophysical Research Letters AU - Stothers, Richard B AD - NASA, Goddard Space Flight Center, Institute for Space Studies. Y1 - 1993/07// PY - 1993 DA - Jul 1993 SP - 1399 EP - 1402 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 20 IS - 13 SN - 0094-8276, 0094-8276 KW - Meteorological & Geoastrophysical Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Statistical analysis KW - Correlations KW - Correlation analysis KW - Time series analysis KW - Basalts KW - Cenozoic KW - Floods KW - Correlation Analysis KW - Periodicities KW - Sampling KW - Extinction KW - Mesozoic Era KW - Rare species KW - Errors KW - Mesozoic KW - Periodicity KW - Species extinction KW - Q2 09148:Palaeo-studies KW - SW 0810:General KW - Q5 08504:Effects on organisms KW - M2 551.5:General (551.5) KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1524427533?accountid=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=Geophysical+Research+Letters&rft.atitle=Flood+basalts+and+extinction+events&rft.au=Stothers%2C+Richard+B&rft.aulast=Stothers&rft.aufirst=Richard&rft.date=1993-07-01&rft.volume=20&rft.issue=13&rft.spage=1399&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL01381 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-05-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Cenozoic; Floods; Periodicity; Correlation analysis; Rare species; Basalts; Mesozoic; Species extinction; Extinction; Correlations; Statistical analysis; Periodicities; Time series analysis; Mesozoic Era; Correlation Analysis; Sampling; Errors DO - http://dx.doi.org/10.1029/93GL01381 ER - TY - JOUR T1 - Warm climates; not just a lot of hot air AN - 50356797; 1993-017089 JF - Nature (London) AU - Chandler, Mark Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 673 EP - 674 PB - Macmillan Journals, London VL - 363 IS - 6431 SN - 0028-0836, 0028-0836 KW - Cenozoic KW - symposia KW - report KW - paleoclimatology KW - Mesozoic KW - temperature KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50356797?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Warm+climates%3B+not+just+a+lot+of+hot+air&rft.au=Chandler%2C+Mark&rft.aulast=Chandler&rft.aufirst=Mark&rft.date=1993-06-01&rft.volume=363&rft.issue=6431&rft.spage=673&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 - 1993-01-01 N1 - Number of references - 5 N1 - SuppNotes - Meeting report; AGU spring meeting, Baltimore, MD, May 24-28, 1993 N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - Cenozoic; Mesozoic; paleoclimatology; report; symposia; temperature ER - TY - JOUR T1 - Explosions of small Spacewatch objects in the Earth's atmosphere AN - 50352999; 1993-017091 JF - Nature (London) AU - Chyba, Christopher F Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 701 EP - 703 PB - Macmillan Journals, London VL - 363 IS - 6431 SN - 0028-0836, 0028-0836 KW - monitoring KW - comets KW - geologic hazards KW - asteroids KW - explosions KW - atmosphere KW - meteorite flux KW - Spacewatch KW - possibilities KW - 04:Extraterrestrial geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50352999?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Explosions+of+small+Spacewatch+objects+in+the+Earth%27s+atmosphere&rft.au=Chyba%2C+Christopher+F&rft.aulast=Chyba&rft.aufirst=Christopher&rft.date=1993-06-01&rft.volume=363&rft.issue=6431&rft.spage=701&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 - 1993-01-01 N1 - Number of references - 21 N1 - Document feature - 1 table, illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - asteroids; atmosphere; comets; explosions; geologic hazards; meteorite flux; monitoring; possibilities; Spacewatch ER - TY - JOUR T1 - Martian surface and atmosphere through time workshop AN - 50344309; 1993-020866 JF - Journal of Geophysical Research AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 11,121 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - planets KW - symposia KW - landform evolution KW - atmosphere KW - Mars KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50344309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=Journal+of+Geophysical+Research&rft.atitle=Martian+surface+and+atmosphere+through+time+workshop&rft.au=Haberle%2C+Robert+M&rft.aulast=Haberle&rft.aufirst=Robert&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE01083 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Part 1 published in J. Geophys. Res., E, Planets, Feb. 1993; individual papers are cited separately N1 - Last updated - 2012-06-15 N1 - SubjectsTermNotLitGenreText - atmosphere; landform evolution; Mars; planets; symposia; terrestrial planets DO - http://dx.doi.org/10.1029/93JE01083 ER - TY - JOUR T1 - A model for the hydrologic and climatic behavior of water on Mars AN - 50342237; 1993-020874 JF - Journal of Geophysical Research AU - Clifford, Stephen M AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 11,016 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - water KW - hydrology KW - thermal conductivity KW - statistical analysis KW - Mars KW - porosity KW - bibliography KW - ground water KW - aquifers KW - terrestrial planets KW - models KW - planets KW - craters KW - levels KW - heat flow KW - climate effects KW - terrestrial comparison KW - hydraulic conductivity KW - geothermal gradient KW - permeability KW - crust KW - 21:Hydrogeology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50342237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=A+model+for+the+hydrologic+and+climatic+behavior+of+water+on+Mars&rft.au=Clifford%2C+Stephen+M%3BHaberle%2C+Robert+M&rft.aulast=Clifford&rft.aufirst=Stephen&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00225 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 275 N1 - PubXState - DC N1 - Document feature - 11 tables, illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; bibliography; climate effects; craters; crust; geothermal gradient; ground water; heat flow; hydraulic conductivity; hydrology; levels; Mars; models; permeability; planets; porosity; statistical analysis; terrestrial comparison; terrestrial planets; thermal conductivity; water DO - http://dx.doi.org/10.1029/93JE00225 ER - TY - JOUR T1 - An improbable concentration of basaltic meteorite falls (HED and mesosiderite) in the mid-20th century AN - 50327907; 1993-029278 JF - Meteoritics AU - Treiman, Allan H Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 246 EP - 252 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 2 SN - 0026-1114, 0026-1114 KW - stony irons KW - history KW - meteorites KW - mineral composition KW - classification KW - occurrence KW - meteorite flux KW - mesosiderite KW - chemical composition KW - basaltic composition KW - distribution KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50327907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=An+improbable+concentration+of+basaltic+meteorite+falls+%28HED+and+mesosiderite%29+in+the+mid-20th+century&rft.au=Treiman%2C+Allan+H&rft.aulast=Treiman&rft.aufirst=Allan&rft.date=1993-06-01&rft.volume=28&rft.issue=2&rft.spage=246&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 38 N1 - PubXState - AZ N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - basaltic composition; chemical composition; classification; distribution; history; mesosiderite; meteorite flux; meteorites; mineral composition; occurrence; stony irons ER - TY - JOUR T1 - Asteroid spectroscopy; progress and perspectives AN - 50324879; 1993-029268 JF - Meteoritics AU - Gaffey, Michael J AU - Burbine, Thomas H AU - Binzel, Richard P Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 161 EP - 187 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 2 SN - 0026-1114, 0026-1114 KW - solar system KW - nomenclature KW - mineral composition KW - asteroids KW - classification KW - composition KW - applications KW - spectra KW - interpretation KW - evolution KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50324879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Asteroid+spectroscopy%3B+progress+and+perspectives&rft.au=Gaffey%2C+Michael+J%3BBurbine%2C+Thomas+H%3BBinzel%2C+Richard+P&rft.aulast=Gaffey&rft.aufirst=Michael&rft.date=1993-06-01&rft.volume=28&rft.issue=2&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 186 N1 - PubXState - AZ N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - applications; asteroids; classification; composition; evolution; interpretation; mineral composition; nomenclature; remote sensing; solar system; spectra ER - TY - JOUR T1 - A comparison of FeO-rich, porphyritic olivine chondrules in unequilibrated chondrites and experimental analogues AN - 50324482; 1993-029272 AB - This paper compares natural chondrules from two unequilibrated ordinary chondrites with experimentally produced analogues of similar composition and texture. Zoning in olivine grains in the Semarkona chondrite (LL3.0) indicates that these chondrules cooled at 5-100 degrees C/h. Zoning in olivine grains in Allan Hills 81251 (LL3.3) show that these chondrules underwent some annealing superimposed on the initial cooling history. Loss of Cr from olivine during annealing is rapid and calculated diffusion rates for Cr are similar to those of Fe-Mg interdiffusion rates. An aluminous, low-Ca pyroxene is present in experimental samples that have been annealed at high T but absent in chondrules. This suggests that chondrule equilibration took place at low T. The study supports the model of chondrule formation in a cool nebula and metamorphism during reheating episodes on chondrite parent bodies. JF - Meteoritics AU - Jones, Rhian H AU - Lofgren, Gary E Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 213 EP - 221 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 2 SN - 0026-1114, 0026-1114 KW - silicates KW - experimental studies KW - stony meteorites KW - igneous rocks KW - olivine group KW - porphyry KW - nesosilicates KW - meteorites KW - chondrules KW - orthosilicates KW - crystallization KW - interpretation KW - chondrites KW - geochemistry KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50324482?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=A+comparison+of+FeO-rich%2C+porphyritic+olivine+chondrules+in+unequilibrated+chondrites+and+experimental+analogues&rft.au=Jones%2C+Rhian+H%3BLofgren%2C+Gary+E&rft.aulast=Jones&rft.aufirst=Rhian&rft.date=1993-06-01&rft.volume=28&rft.issue=2&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1993-01-01 N1 - Number of references - 22 N1 - PubXState - AZ N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chondrites; chondrules; crystallization; experimental studies; geochemistry; igneous rocks; interpretation; meteorites; nesosilicates; olivine group; orthosilicates; porphyry; silicates; stony meteorites ER - TY - JOUR T1 - Atmospheric tides on Venus; IV, Topographic winds and sediment transport AN - 50282722; 2005-069405 JF - Icarus (Online) AU - Dobrovolskis, Anthony R Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 276 EP - 289 PB - Elsevier VL - 103 IS - 2 SN - 1090-2643, 1090-2643 KW - density KW - thermal conductivity KW - mixing-length model KW - Venus KW - temperature KW - relief KW - heat flow KW - surface features KW - sediments KW - diurnal variations KW - soils KW - surface properties KW - sand KW - pressure KW - sediment transport KW - clastic sediments KW - grain size KW - friction KW - atmosphere KW - size KW - terrestrial planets KW - models KW - planets KW - viscosity KW - solar radiation KW - planetology KW - winds KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50282722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Atmospheric+tides+on+Venus%3B+IV%2C+Topographic+winds+and+sediment+transport&rft.au=Dobrovolskis%2C+Anthony+R&rft.aulast=Dobrovolskis&rft.aufirst=Anthony&rft.date=1993-06-01&rft.volume=103&rft.issue=2&rft.spage=276&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/10.1006%2Ficar.1993.1070 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 33 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; clastic sediments; density; diurnal variations; friction; grain size; heat flow; mixing-length model; models; planetology; planets; pressure; relief; sand; sediment transport; sediments; size; soils; solar radiation; surface features; surface properties; temperature; terrestrial planets; thermal conductivity; Venus; viscosity; winds DO - http://dx.doi.org/10.1006/icar.1993.1070 ER - TY - JOUR T1 - Remote sensing of the land biosphere and biogeochemistry in the EOS era; science priorities, methods and implementation; EOS land biosphere and biogeochemical cycles panels AN - 50215800; 1994-050002 JF - Global and Planetary Change AU - Sellers, Piers AU - Schimel, David A2 - Barron, E. J. Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 279 EP - 297 PB - Elsevier, Amsterdam VL - 7 IS - 4 SN - 0921-8181, 0921-8181 KW - Earth Observing System KW - biosphere KW - biochemistry KW - cyclic processes KW - ecosystems KW - satellite methods KW - remote sensing KW - observations KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50215800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Remote+sensing+of+the+land+biosphere+and+biogeochemistry+in+the+EOS+era%3B+science+priorities%2C+methods+and+implementation%3B+EOS+land+biosphere+and+biogeochemical+cycles+panels&rft.au=Sellers%2C+Piers%3BSchimel%2C+David&rft.aulast=Sellers&rft.aufirst=Piers&rft.date=1993-06-01&rft.volume=7&rft.issue=4&rft.spage=279&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. N1 - Date revised - 1994-01-01 N1 - Number of references - 3 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biochemistry; biosphere; cyclic processes; Earth Observing System; ecosystems; observations; remote sensing; satellite methods ER - TY - JOUR T1 - Zeolite and phyllosilicate formation from glass dissolution AN - 50198709; 1995-003982 JF - International Conference on the Occurrence, Properties, and Utilization of Natural Zeolites AU - Golden, D C AU - Ming, D W A2 - Ming, D. W. A2 - Mumpton, F. A. Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 99 EP - 101 PB - [publisher varies], [location varies] VL - 1993 KW - silicates KW - experimental studies KW - volcanic rocks KW - glasses KW - igneous rocks KW - smectite KW - crystal growth KW - solution KW - simulation KW - clay minerals KW - volcanic glass KW - zeolite group KW - sheet silicates KW - framework silicates KW - basaltic composition KW - synthetic materials KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50198709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+the+Occurrence%2C+Properties%2C+and+Utilization+of+Natural+Zeolites&rft.atitle=Zeolite+and+phyllosilicate+formation+from+glass+dissolution&rft.au=Golden%2C+D+C%3BMing%2C+D+W&rft.aulast=Golden&rft.aufirst=D&rft.date=1993-06-01&rft.volume=1993&rft.issue=&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+the+Occurrence%2C+Properties%2C+and+Utilization+of+Natural+Zeolites&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Zeolite '93; 4th international conference on the Occurrence, properties, and utilization of natural zeolites N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 7 N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #03748 N1 - SubjectsTermNotLitGenreText - basaltic composition; clay minerals; crystal growth; experimental studies; framework silicates; glasses; igneous rocks; sheet silicates; silicates; simulation; smectite; solution; synthetic materials; volcanic glass; volcanic rocks; zeolite group ER - TY - JOUR T1 - Adsorption of cadmium and lead by clay-liner material amended with clinoptilolite AN - 50195362; 1995-004028 JF - International Conference on the Occurrence, Properties, and Utilization of Natural Zeolites AU - Tuck, Lisa Kay AU - Ming, Douglas W A2 - Ming, D. W. A2 - Mumpton, F. A. Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 205 EP - 207 PB - [publisher varies], [location varies] VL - 1993 KW - silicates KW - experimental studies KW - cation exchange capacity KW - pollutants KW - landfills KW - lead KW - adsorption KW - feasibility studies KW - metals KW - clinoptilolite KW - cadmium KW - zeolite group KW - framework silicates KW - applications KW - waste disposal KW - heavy metals KW - disposal barriers KW - sanitary landfills KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50195362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+the+Occurrence%2C+Properties%2C+and+Utilization+of+Natural+Zeolites&rft.atitle=Adsorption+of+cadmium+and+lead+by+clay-liner+material+amended+with+clinoptilolite&rft.au=Tuck%2C+Lisa+Kay%3BMing%2C+Douglas+W&rft.aulast=Tuck&rft.aufirst=Lisa&rft.date=1993-06-01&rft.volume=1993&rft.issue=&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+the+Occurrence%2C+Properties%2C+and+Utilization+of+Natural+Zeolites&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Zeolite '93; 4th international conference on the Occurrence, properties, and utilization of natural zeolites N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 1 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #03748 N1 - SubjectsTermNotLitGenreText - adsorption; applications; cadmium; cation exchange capacity; clinoptilolite; disposal barriers; experimental studies; feasibility studies; framework silicates; heavy metals; landfills; lead; metals; pollutants; sanitary landfills; silicates; waste disposal; zeolite group ER - TY - JOUR T1 - Ice in the northern lowlands and southern highlands of Mars and its enrichment beneath the Elysium lavas AN - 50184373; 1993-020879 AB - A comprehensive study of the Elysium region has revealed evidence of widespread ground-ice, whose concentration and depth has varied considerably. Ejecta mobility and crater morphology analyses of a database of 7289 craters (which range in diameter from 1.875 to over 160km) have been used to investigate the distribution of ice between longitudes 245 degrees -155 degrees and latitudes 20 degrees S-45 degrees N, an area incorporating all of the Elysium Quadrangle and large portions of Amenthes, Amazonis, Mare Tyrrhenum, Aeolis, Memnonia, Cebrenia and Diacria Quadrangles. Assuming that the observed variations in the crater characteristics are the result of the incorporation of varying concentrations of subsurface volatiles, the ice distribution is shown to be strongly dependent upon latitude, though its concentration varies with depth and is strongly influenced by geological setting. Important differences have been detected in the distribution of southern and northern lowland ground-ice. While there is substantial evidence of near-surface ice in the northern lowlands, where near-surface limits are strongly influenced by latitude, the greatest concentrations of subsurface ice occur at much greater depths in the southern highlands. In addition, the ice appears to be enriched at depth in the Elysium Lavas, and nearer to the surface in deposits located to the northwest of Elysium Mons and in the Vastitas Borealis Formation. This distribution suggests that several ice-emplacement mechanisms have operated on Mars, including the enrichment of the deeper ice by juvenile water from beneath the Elysium volcanic province, and the redistribution to the lowlands of a highly concentrated ice reservoir from a great depth within the highlands. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Cave, Julie A AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 11 EP - 11,097 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - Amenthes Quadrangle KW - permafrost KW - lava plains KW - Mars KW - debris flows KW - Aeolis Quadrangle KW - volcanic features KW - Diacria Quadrangle KW - Cebrenia Quadrangle KW - ice KW - Elysium KW - mass movements KW - Memnonia Quadrangle KW - plains KW - ground ice KW - Amazonis Quadrangle KW - landform description KW - highlands KW - terrestrial planets KW - planets KW - craters KW - lava KW - Mare Tyrrhenum Quadrangle KW - geomorphology KW - Vastitas Borealis Formation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50184373?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ice+in+the+northern+lowlands+and+southern+highlands+of+Mars+and+its+enrichment+beneath+the+Elysium+lavas&rft.au=Cave%2C+Julie+A%3BHaberle%2C+Robert+M&rft.aulast=Cave&rft.aufirst=Julie&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00381 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 69 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Aeolis Quadrangle; Amazonis Quadrangle; Amenthes Quadrangle; Cebrenia Quadrangle; craters; debris flows; Diacria Quadrangle; Elysium; geomorphology; ground ice; highlands; ice; landform description; lava; lava plains; Mare Tyrrhenum Quadrangle; Mars; mass movements; Memnonia Quadrangle; permafrost; plains; planets; terrestrial planets; Vastitas Borealis Formation; volcanic features DO - http://dx.doi.org/10.1029/93JE00381 ER - TY - JOUR T1 - Adsorption of HO (sub x) on aerosol surfaces; implications for the atmosphere of Mars AN - 50184159; 1993-020870 AB - The potential impact of heterogeneous chemistry on the abundance and distribution of HO (sub x ) in the atmosphere of Mars has been assessed by combining observational data of dust and ice aerosol distributions with an updated photochemical model. Critical parameters include the altitude distributions of aerosols, and the surface loss coefficients (gamma ) of HO (sub 2) on dust and ice in the lower atmosphere, and H on ice above 40 km. We find that adsorption of HO (sub 2) on dust (gamma HO (sub 2) > or = 0.01), or ice near 30 km (gamma HO (sub 2) > or = 0.1), can deplete OH abundances in the lower atmosphere by 10% or more. Such depletions approach those obtained by lowering the water vapor abundance by an order of magnitude below the global average observed by Viking ( nearly equal 25%). Since the oxidation of CO is catalyzed by HO (sub x ) in the lower atmosphere via the reaction CO + OH --> CO (sub 2) + H, loss of OH due to adsorption of HO (sub 2) on dust or ice at low altitudes could have a significant effect on the ratio CO : CO (sub 2) . The adsorption of H on ice at 50 km (gamma H > or = 0.01) can result in even larger OH depletions. However, this effect is localized to altitudes > 40 km, where CO oxidation is relatively unimportant. Laboratory data suggest that gamma HO (sub 2) nearly equal 0.01 is a reasonable estimate for adsorption on dust. Larger values are plausible, but are not stongly supported by experimental evidence. The reactivity of HO (sub 2) on ice is unknown, while gamma H on ice appears to be < 0.001. There is a need for measurements Of HO (sub x ) adsorption on surfaces representative of Martian aerosols at temperatures < 220 K. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Anbar, A D AU - Leu, M T AU - Nair, H A AU - Yung, Y L AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 10,940 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - oxygen KW - gaseous phase KW - photochemistry KW - mathematical models KW - Mars KW - adsorption KW - terrestrial planets KW - planets KW - hydroxyl ion KW - theoretical studies KW - hydrogen KW - aerosols KW - geochemistry KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50184159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Adsorption+of+HO+%28sub+x%29+on+aerosol+surfaces%3B+implications+for+the+atmosphere+of+Mars&rft.au=Anbar%2C+A+D%3BLeu%2C+M+T%3BNair%2C+H+A%3BYung%2C+Y+L%3BHaberle%2C+Robert+M&rft.aulast=Anbar&rft.aufirst=A&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00132 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 55 N1 - PubXState - DC N1 - Document feature - 3 tables, illus. N1 - SuppNotes - Calif. Inst. Technol., Div. Geol. Sci., Contrib. No. 5114 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; aerosols; gaseous phase; geochemistry; hydrogen; hydroxyl ion; Mars; mathematical models; oxygen; photochemistry; planets; terrestrial planets; theoretical studies DO - http://dx.doi.org/10.1029/93JE00132 ER - TY - JOUR T1 - Stratigraphy and erosional landforms of layered deposits in Valles Marineris, Mars AN - 50183865; 1993-020881 AB - The complex stratigraphy of layered deposits suggests a diversity of origins, ages, and post-depositional modification histories. The complexities within some layered deposits indicate changes in the dominant source materials in space and time. The stratigraphy of layered deposits in the isolated Martian chasmata Hebes, Juventae and Gangis is not well correlated. This indicates that at least these chasmata had isolated depositional environments resulting in different stratigraphic sequences. Separated layered deposits in Ophir-Candor and Melas Chasmata might have been a single continuous deposit in each chasma. Chaotic terrains are found in conjunction with layered deposits in Juventae, Gangis and Capri-Eos Chasmata. In these chasmata, layered deposits unconformably overlie chaotic terrains. Chaotic terrain formation may have provided water to form paleolakes, and lacustrine deposition of thick layered deposits may have occurred if the canyons were closed. A very thick sequence of the layered deposits has been exposed by erosion. A combination of gradual processes such as evaporation of ice and eolian and fluvial transport in addition to structural processes may be responsible for this erosion. Another alternative is that catastrophic water release under the layered deposits disrupted and initiated erosion of the layered deposits. Newly identified units of anomalous color are confined to the depressions or reentrants in western Candor Chasma. The difference in color between these units and the surrounding terrain is most consistent with a somewhat greater content of bulk crystalline hematite in these anomalous units. The presence of the Candor units is a result of original and/or secondary deposition which is different from the primary and dominant formation of the layered deposits. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Komatsu, G AU - Geissler, P E AU - Strom, R G AU - Singer, R B AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 11 EP - 11,121 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - lithostratigraphy KW - Juventae Chasma KW - imagery KW - Valles Marineris KW - chasmata KW - Eos Chasma KW - landform description KW - Viking Program KW - Mars KW - Capri Chasma KW - Candor Chasma KW - Hebes Chasma KW - erosion features KW - canyons KW - layered materials KW - terrestrial planets KW - planets KW - Melas Chasma KW - Gangis Chasma KW - geomorphology KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50183865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stratigraphy+and+erosional+landforms+of+layered+deposits+in+Valles+Marineris%2C+Mars&rft.au=Komatsu%2C+G%3BGeissler%2C+P+E%3BStrom%2C+R+G%3BSinger%2C+R+B%3BHaberle%2C+Robert+M&rft.aulast=Komatsu&rft.aufirst=G&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00537 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 44 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Candor Chasma; canyons; Capri Chasma; chasmata; Eos Chasma; erosion features; Gangis Chasma; geomorphology; Hebes Chasma; imagery; Juventae Chasma; landform description; layered materials; lithostratigraphy; Mars; Melas Chasma; planets; regolith; terrestrial planets; Valles Marineris; Viking Program DO - http://dx.doi.org/10.1029/93JE00537 ER - TY - JOUR T1 - Thermally distinct ejecta blankets from Martian craters AN - 50183828; 1993-020877 AB - Utilizing the Termoskan data set of the Phobos '88 mission we have recognized a new feature on Mars: ejecta blanket distinct in the thermal infrared (EDITH). Virtually all of the more than 100 features discovered in the Termoskan data are located on the plains near Valles Marineris. EDITHs have a startlingly clear dependence upon terrains of Hesperian age, implying a spatial or temporal dependence on Hesperian terrains. Almost no thermally distinct ejecta blankets are associated with any of the thousands of craters within the data set that occur on the older Noachian units. EDITHs also do not appear on the portions of the younger Tharsis Amazonian units seen in the data. The Hesperian terrain dependence cannot be explained by either atmospheric or impactor variations; Noachian and Hesperian terrains must have experienced identical atmospheric and impactor conditions during Hesperian times. Thermally distinct ejecta blankets therefore reflect target material differences and/or secondary modification processes. Not all lobate ejecta blankets are thermally distinct, but all EDITHs correlated with visibly discernible ejecta blankets are associated with lobate ejecta blankets. The boundaries of the thermally distinct areas usually follow closely the termini of the fluidized lobate ejecta blankets, even when the ejecta blankets show a high degree of sinuosity. Thus, the thermally distinct nature of EDITHs must be due to the primary ejecta formation process. The coupling of these thermal anomalies to morphology is unlike most sharp Martian inertia variations which are decoupled from observed surface morphology. Some thermally distinct ejecta blankets occur near otherwise similar craters that do not have thermally distinct ejecta blankets. Thus, wind patterns or locally available aeolian material cannot provide a single overall explanation for the observed variations. We compiled a data base of 110 EDITH and non-EDITH craters ranging in diameter from 4.2 km to 90.6 km. There are almost no correlations within the data base other than occurrence on Hesperian terrains. We postulate that most of the observed EDITHs are due to excavation of thermally distinctive Noachian age material from beneath a relatively thin layer of younger, more consolidated Hesperian volcanic material. The plausibility of this theory is supported by much geological evidence for relatively thin near-surface Hesperian deposits overlying massive Noachian megabreccias on the EDITH-rich plains units. We suggest that absence of thermally distinct ejecta blankets on Noachian and Amazonian terrains is due to absences of distinctive near-surface layering. Thermally distinct ejecta blankets are excellent locations for future landers and remote sensing because of relatively dust free surface exposures of material excavated from depth. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Betts, Bruce H AU - Murray, Bruce C AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 11 EP - 11,059 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - Termoskan KW - Noachian KW - impact features KW - Mars KW - landing sites KW - Hesperian KW - ejecta KW - possibilities KW - observations KW - infrared spectra KW - terrestrial planets KW - planets KW - craters KW - Amazonian KW - thermal emission KW - impact craters KW - spectra KW - regolith KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50183828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Thermally+distinct+ejecta+blankets+from+Martian+craters&rft.au=Betts%2C+Bruce+H%3BMurray%2C+Bruce+C%3BHaberle%2C+Robert+M&rft.aulast=Betts&rft.aufirst=Bruce&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00107 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 56 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - SuppNotes - Calif. Inst. Technol., Div. Geol. and Planet. Sci., Contrib. No. 5108 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Amazonian; craters; ejecta; Hesperian; impact craters; impact features; infrared spectra; instruments; landing sites; Mars; Noachian; observations; planets; possibilities; regolith; spectra; Termoskan; terrestrial planets; thermal emission DO - http://dx.doi.org/10.1029/93JE00107 ER - TY - JOUR T1 - Photodissociation in the atmosphere of Mars; impact of high resolution, temperature-dependent CO (sub 2) cross-section measurements AN - 50183801; 1993-020869 AB - We have investigated the impact of high resolution, temperature-dependent CO (sub 2) cross-section measurements (Lewis and Carver, 1983) on calculations of photo dissociation rate coefficients in the Martian atmosphere. Since the cross-section measurements exhibit large variations on a 10-20 A scale, the calculations are sensitive to the wavelength resolution. We find that the adoption of 50 A intervals for the purpose of computational efficiency result in crrors in the calculated values for photodissociation of CO (sub 2) , H (sub 2) O and O (sub 2) which are generally < or =10% but as large as 20% in some instances. These are acceptably small errors, especially considering the uncertainties introduced by the large temperature dependence of the CO (sub 2) cross-section. The inclusion of temperature-dependent CO (sub 2) cross-sections is shown to lead to a decrease in the diumally averaged rate of CO (sub 2) photodissociation as large as 33% at some altitudes, and increases of as much as 950% and 80% in the photodissociation rate coefficients of H (sub 2) O and O (sub 2) , respectively. The actual magnitude of the changes depends on the assumptions used to model the CO (sub 2) absorption spectrum at temperatures lower than the available measurements, and at wavelengths longward of 1970 Aa. Given our current understanding, these results minimize or even reverse the sense of the CO (sub 2) chemical stability problem. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Anbar, A D AU - Allen, M AU - Nair, H A AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 10,931 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - planets KW - theoretical studies KW - photochemistry KW - atmosphere KW - photodissociation KW - Mars KW - geochemistry KW - temperature KW - carbon dioxide KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50183801?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Photodissociation+in+the+atmosphere+of+Mars%3B+impact+of+high+resolution%2C+temperature-dependent+CO+%28sub+2%29+cross-section+measurements&rft.au=Anbar%2C+A+D%3BAllen%2C+M%3BNair%2C+H+A%3BHaberle%2C+Robert+M&rft.aulast=Anbar&rft.aufirst=A&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00330 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 58 N1 - PubXState - DC N1 - Document feature - 1 table, illus. N1 - SuppNotes - Calif. Inst. Technol., Div. Geol. Sci., Contrib. No. 5115 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; geochemistry; Mars; photochemistry; photodissociation; planets; temperature; terrestrial planets; theoretical studies DO - http://dx.doi.org/10.1029/93JE00330 ER - TY - JOUR T1 - Degradation of selected terrestrial and Martian impact craters AN - 50182697; 1993-020876 AB - Degraded craters on Mars record the cumulative effects of the complex interplay between erosion, transport and deposition by competing intermittent processes. Fortunately, impact craters are instantaneous landforms common to both the Earth and Mars that are characterized by similar topography and local lithofacies. Deconvolving the signatures of individual degradation processes around young craters on Earth (e.g., drainage scale and density, changing wall slope, deflation features) allows calibrating degradation signatures around craters on Mars and places first-order limits on controlling processes and perhaps past climates. Such comparisons are valid despite differences in vegetation cover and time scales over which activity occurs on the two planets. Analysis of degradation at Meteor Crater, Lonar Crater, and Talemzane Crater reveals a terrestrial sequence of advancing degradation by fluvial, eolian, and mass wasting processes. At Meteor Crater, fluvial processes currently dominate primary erosion; however, combined deflation from the ejecta and both alluvium and colluvium make eolian processes most important in overall ejecta degradation. Lonar and Talemzane reveal that advancing fluvial degradation is characterized by larger drainages and decreasing wall slopes. At Talemzane, interior drainages breach the rim-crest and pirate headward regions of exterior drainage basins. When comparable degradation signatures resolvable at Viking resolutions are used in selected areas on Mars, important differences from the terrestrial sequence are revealed. All morphologies of craters in southern Ismenius Lacus (SIL) are typically incised by small valleys with low drainage densities, display rare alluvial deposits, possess walls sloped at the angle of repose, and are sometimes partially covered by airfall deposit remnants. Analogy with the terrestrial craters indicates signatures associated with advancing fluvial degradation should be readily detected on Mars. Together with other differences between degraded craters on the two planets, the paucity of fluvial signatures in SIL implies that mass wasting and eolian activity predominated degradation of martian craters preserved since the Hesperian. Crater statistics for SIL indicate most craters were degraded during geologically brief intervals in the Noachian and mid-Hesperian. Therefore, fluvial signatures preserved in SIL imply any runoff since the Hesperian was short lived, locally debouched, and unrelated to rainfall. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Grant, John A AU - Schultz, Peter H AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 11 EP - 11,042 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - United States KW - degradation KW - Coconino County Arizona KW - impact features KW - North Africa KW - erosion KW - meteor craters KW - Mars KW - India KW - Indian Peninsula KW - Meteor Crater KW - Asia KW - Maharashtra India KW - northeastern Arizona KW - water erosion KW - Talemzane Crater KW - terrestrial planets KW - planets KW - craters KW - Arizona KW - Africa KW - terrestrial comparison KW - Lonar Crater KW - impact craters KW - geomorphology KW - Algeria KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Degradation+of+selected+terrestrial+and+Martian+impact+craters&rft.au=Grant%2C+John+A%3BSchultz%2C+Peter+H%3BHaberle%2C+Robert+M&rft.aulast=Grant&rft.aufirst=John&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00121 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 90 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Africa; Algeria; Arizona; Asia; Coconino County Arizona; craters; degradation; erosion; geomorphology; impact craters; impact features; India; Indian Peninsula; Lonar Crater; Maharashtra India; Mars; Meteor Crater; meteor craters; North Africa; northeastern Arizona; planets; Talemzane Crater; terrestrial comparison; terrestrial planets; United States; water erosion DO - http://dx.doi.org/10.1029/93JE00121 ER - TY - JOUR T1 - New dust opacity mapping from Viking infrared thermal mapper data AN - 50182210; 1993-020871 AB - Global dust opacity mapping for Mars has been carried forward using the approach described by Martin (1986) for Viking IR Thermal Mapper data. New maps are presented for the period from the beginning of Viking observations, until L (sub s) 210 degrees in 1979 (1.36 Mars years). This range includes the second and more extensive planet-encircling dust storm observed by Viking, known as storm 1977b. Improvements in approach result in greater time resolution and smaller noise than the earlier work. A strong local storm event filled the Hellas basin at L (sub s) 170 degrees , prior to the 1977a storm. Dust is retained in equatorial regions following the 1977b storm far longer than in mid-latitudes. Minor dust events appear to raise the opacity in northern high latitudes during northern spring. Additional mapping with high time resolution has been done for the periods of time near the major storm origins in order to search for clues to the mechanism of storm initiation. The first evidence of the start of the 1977b storm is pushed back to L (sub s) 274.2 degrees , preceding signs of the storm in images by about 15 hours. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Martin, Terry Z AU - Richardson, Mark I AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 10,949 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - dust storms KW - clastic sediments KW - atmosphere KW - Viking Program KW - Mars KW - mapping KW - infrared spectra KW - terrestrial planets KW - planets KW - optical properties KW - infrared thermal mapper KW - dust KW - sediments KW - opacity KW - thermal emission KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=New+dust+opacity+mapping+from+Viking+infrared+thermal+mapper+data&rft.au=Martin%2C+Terry+Z%3BRichardson%2C+Mark+I%3BHaberle%2C+Robert+M&rft.aulast=Martin&rft.aufirst=Terry&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE01044 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - 1 table, illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; clastic sediments; dust; dust storms; infrared spectra; infrared thermal mapper; mapping; Mars; opacity; optical properties; planets; sediments; spectra; terrestrial planets; thermal emission; Viking Program DO - http://dx.doi.org/10.1029/93JE01044 ER - TY - JOUR T1 - The ancient oxygen exosphere of Mars; implications for atmosphere evolution AN - 50182183; 1993-020868 AB - The evolution of the Martian atmosphere, particularly with regard to water, is influenced by (1) "nonthermal" escape of oxygen atoms created by dissociative recombination and (2) by oxygen ion pickup by the solar wind. Both processes depend on the intensity of solar EUV radiation, which affects atmosphere temperatures (scale heights) and photoionization rates, and thereby the exosphere and the fluxes of escaping atoms and ions. This study involves the calculation, by the two-stream model method of Nagy and Cravens (1988), of the exospheric hot oxygen densities for "ancient" atmospheres and ionospheres (e.g., for different EUV fluxes), and the associated neutral escape fluxes. The ion production rates above nominal ionopause altitudes are also computed and are considered to be the upper limits to losses by direct solar wind pickup. Since we do not consider the pickup ion precipitation and additional neutral escape due to the sputtering process described by Luhmann and Kozyra (1991), the results presented here represent conservative estimates of the neutral escape fluxes, but somewhat generous estimates of ion loss rates. We find that when the inferred increased solar EUV fluxes of the past are taken into account, oxygen equivalent to that in several tens of meters of water, planet-wide, should have escaped to space over the last 3 Gyr. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Zhang, M H G AU - Luhmann, J G AU - Bougher, S W AU - Nagy, A F AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 10,923 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - planets KW - theoretical studies KW - oxygen KW - density KW - paleoatmosphere KW - atmosphere KW - mathematical models KW - Mars KW - exosphere KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+ancient+oxygen+exosphere+of+Mars%3B+implications+for+atmosphere+evolution&rft.au=Zhang%2C+M+H+G%3BLuhmann%2C+J+G%3BBougher%2C+S+W%3BNagy%2C+A+F%3BHaberle%2C+Robert+M&rft.aulast=Zhang&rft.aufirst=M+H&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00231 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; density; exosphere; Mars; mathematical models; oxygen; paleoatmosphere; planets; terrestrial planets; theoretical studies DO - http://dx.doi.org/10.1029/93JE00231 ER - TY - JOUR T1 - Coastal geomorphology of the Martian northern plains AN - 50180893; 1993-020878 AB - The northern lowland plains comprise approximately one third Mars' surface area. Most outflow channels and many valley networks debouch into the lowlands, yet there is little or no morphologic evidence to suggest that channel cutting continued far into the plains, despite a continued basinward regional topographic gradient. The immediate fate of the water discharged from these channels was dependent on the prevailing paleoclimate at the time of its emplacement. Though current models of the martian paleoclimate suggest that mean annual temperatures were likely below freezing throughout most of martian history, geomorphic evidence suggests that coastal erosion on a scale comparable to that of well-known terrestrial paleolakes occurred. These landforms can be traced to nearly complete closure of the northern plains and appear to require at least two, and perhaps several, highstands of a sea or ocean with temperatures above freezing at least for geologically brief periods of time. The latest highstand may have been as recent as Early Amazonian time. The elevations and areal extent of these landforms provide independent estimates of the martian water budget that can be compared to prevailing models of martian volatile evolution. Estimated volumes of water and sediment discharged by the major channel systems peripheral to the northern plains can be compared to the volume of the basin based on the available topography. Values for the circum-Chryse outflow channels alone are sufficient to have produced large bodies of standing water within the basin. These estimates may be comparable to the basin volume contained within the younger, least extensive highstand identified. The earlier, more extensive highstand delineates a basin with a much larger implied volume that may require the presence of a semi-permanent, possibly ice-covered ocean in the northern plains prior to major channeling events. The northern plains today probably consist of water-lain sediments interbedded to considerable depths with flood lavas from the major volcanic centers, with sediment comprising most of the present surface. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Parker, Timothy J AU - Gorsline, Donn S AU - Saunders, R Stephen AU - Pieri, David C AU - Schneeberger, Dale M AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 11 EP - 11,078 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - imagery KW - Tuktoyaktuk Peninsula KW - Quebec KW - Magdalen Islands KW - Mars KW - paleoclimatology KW - coastal plains KW - topography KW - Amazonian KW - paleotemperature KW - water regimes KW - plains KW - valleys KW - landform description KW - Arctic region KW - channels KW - Viking Program KW - Arctic Coastal Plain KW - Northwest Territories KW - terrestrial planets KW - planets KW - Canada KW - Mackenzie District Northwest Territories KW - coastal environment KW - Western Canada KW - terrestrial comparison KW - geomorphology KW - Eastern Canada KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Coastal+geomorphology+of+the+Martian+northern+plains&rft.au=Parker%2C+Timothy+J%3BGorsline%2C+Donn+S%3BSaunders%2C+R+Stephen%3BPieri%2C+David+C%3BSchneeberger%2C+Dale+M%3BHaberle%2C+Robert+M&rft.aulast=Parker&rft.aufirst=Timothy&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00618 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 88 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Amazonian; Arctic Coastal Plain; Arctic region; Canada; channels; coastal environment; coastal plains; Eastern Canada; geomorphology; imagery; landform description; Mackenzie District Northwest Territories; Magdalen Islands; Mars; Northwest Territories; paleoclimatology; paleotemperature; plains; planets; Quebec; terrestrial comparison; terrestrial planets; topography; Tuktoyaktuk Peninsula; valleys; Viking Program; water regimes; Western Canada DO - http://dx.doi.org/10.1029/93JE00618 ER - TY - JOUR T1 - Changes in erosional style on early Mars; external versus internal influences AN - 50180799; 1993-020875 AB - The conditions which led to the formation of the valley networks on Mars were apparently very different from present-day conditions. In this paper we investigate the relative importance of higher early surface temperatures versus higher deep regolith temperatures in producing a shallower depth to liquid water in the regolith on Mars. If enough CO (sub 2) is in the atmosphere, the surface temperature could be raised to near the freezing point around 3.8 b.y. ago despite a possibly weak early sun, at least in the equatorial regions. On the other hand, it has been argued that higher internal regolith temperatures, associated with a much higher heat flow around 3.8 b.y. ago than at present, could reduce the depth to liquid water sufficiently to account for the change in erosional style with time. In fact, it does not make sense on physical grounds to consider these two mechanisms separately. The effectiveness of both of these mechanisms is dependent on a high early heat flow. In general, we find that if early heat flow were around 100 mW m (super -2) , then the total available CO (sub 2) in the atmosphere-plus-regolith system becomes critical. If total available CO (sub 2) were greater than about 4 bars, then the atmospheric greenhouse effect could play an important role in raising the liquid water level closer to the surface, but only in equatorial regions. On a global basis, condensation of large amounts of atmospheric CO (sub 2) may inhibit surface warming. If the total CO (sub 2) were 1 bar or less, the atmospheric greenhouse effect raises the surface temperature by only a few degrees. Heat flows greater than 100 mW m (super -2) can still raise the liquid water level from over 1 km to less than 350 m, enabling substantially more efficient network formation very early in martian history. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Postawko, Susan E AU - Fanale, Fraser P AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 11 EP - 11,024 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - planets KW - valleys KW - erosion KW - heat flow KW - landform evolution KW - climate effects KW - Mars KW - greenhouse effect KW - geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Changes+in+erosional+style+on+early+Mars%3B+external+versus+internal+influences&rft.au=Postawko%2C+Susan+E%3BFanale%2C+Fraser+P%3BHaberle%2C+Robert+M&rft.aulast=Postawko&rft.aufirst=Susan&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00449 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 24 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - climate effects; erosion; geomorphology; greenhouse effect; heat flow; landform evolution; Mars; planets; terrestrial planets; valleys DO - http://dx.doi.org/10.1029/93JE00449 ER - TY - JOUR T1 - Xenological constraints on the impact erosion of the early Martian atmosphere AN - 50180734; 1993-020867 AB - The roughly uniform hundredfold depletion of observable Martian atmophiles (nonradiogenic noble gases and reconstituted nitrogen) with respect to Earth implies that Mars lost its atmosphere by a relatively efficient, nonfractionating process. Impact erosion (expulsion of atmosphere by impacts) is an appealing candidate. Noble gases can be used to test this hypothesis. Xenon in particular can be used to impose three constraints on how Mars lost its atmosphere: its very low abundance compared to Earth, Venus, and likely meteoritic sources; its distinctive isotopic composition compared to likely meteoritic sources; and the relatively high absolute abundance of radiogenic (super 129) Xe, daughter of the extinct radionuclide (super 129) I (half-life 17 m.y.). A fourth useful constraint is imposed by radiogenic (super 40) Ar. If produced by impact erosion, the first two constraints become constraints on the composition, mass distribution, and orbital elements of the impactors. The third and fourth constraints imply that Mars lost its nonradiogenic noble gases early, perhaps before it was 100 Myr old. Impact erosion can be invoked to explain Mars by any of three stories: (1) Mars is unlikely. In a sort of planetary brinkmanship, impact erosion almost removed the entire atmosphere but was arrested just in time. (2) Martian noble gases are cometary and cometary Xe is as isotopically mass fractionated as Martian and terrestrial Xe. This is most easily accomplished if a relatively thick geochemically controlled CO (sub 2) atmosphere protected trace atmophiles against escape. It is not known if comets actually have the desired composition. (3) Mars was indeed stripped of its early atmosphere but a small remnant was safely stored in the regolith, later released as a by-product of water mobilization. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Zahnle, Kevin J AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 10,913 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - isotopes KW - halogens KW - atmosphere KW - Mars KW - impacts KW - xenon KW - stable isotopes KW - terrestrial planets KW - planets KW - iodine KW - volatiles KW - radioactive isotopes KW - I-129 KW - noble gases KW - Xe-129 KW - geochemistry KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Xenological+constraints+on+the+impact+erosion+of+the+early+Martian+atmosphere&rft.au=Zahnle%2C+Kevin+J%3BHaberle%2C+Robert+M&rft.aulast=Zahnle&rft.aufirst=Kevin&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02941 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - 2 tables, illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; geochemistry; halogens; I-129; impacts; iodine; isotopes; Mars; noble gases; planets; radioactive isotopes; stable isotopes; terrestrial planets; volatiles; Xe-129; xenon DO - http://dx.doi.org/10.1029/92JE02941 ER - TY - JOUR T1 - Martian surface simulations AN - 50180638; 1993-020880 AB - Computer generated surfaces have been created to aid in imaging, landing and rover studies for Mars and the moon. They are also being applied to the study of cratering histories. The surfaces are generated in steps which attempt to mimic geologic episodes. Surface roughness is realized fractally, while craters and other specific features have shapes and distributions dictated by observation. Surface materials are assigned appropriate albedos, making the images more realistic. With the inclusion of correlations between crater and rock distributions, the simulations are beginning to acquire a predictive capability. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Gaskell, Robert W AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 11 EP - 11,103 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - albedo KW - surface properties KW - planets KW - imagery KW - craters KW - digital simulation KW - roughness KW - data processing KW - Mars KW - fractals KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Martian+surface+simulations&rft.au=Gaskell%2C+Robert+W%3BHaberle%2C+Robert+M&rft.aulast=Gaskell&rft.aufirst=Robert&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00617 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 10 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - albedo; craters; data processing; digital simulation; fractals; imagery; Mars; planets; roughness; surface properties; terrestrial planets DO - http://dx.doi.org/10.1029/93JE00617 ER - TY - JOUR T1 - Mars dust storms; interannual variability and chaos AN - 50180601; 1993-020872 AB - The hypothesis is that the global climate system, consisting of atmospheric dust interacting with the circulation, produces its own interannual variability when forced at the annual frequency. The model has two time-dependent variables representing the amount of atmospheric dust in the northern and southern hemispheres, respectively. Absorption of sunlight by the dust drives a cross-equatorial Hadley cell that brings more dust into the heated hemisphere. The circulation decays when the dust storm covers the globe. Interannual variability manifests itself either as a periodic solution in which the period is a multiple of the Martian year, or as an aperiodic (chaotic) solution that never repeats. Both kinds of solution are found in the model, lending support to the idea that interannual variability is an intrinsic property of the global climate system. The next step is to develop a hierarchy of dust-circulation models capable of being integrated for many years. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Ingersoll, Andrew P AU - Lyons, James R AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 10,961 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - dust storms KW - planets KW - theoretical studies KW - chaos KW - circulation KW - atmosphere KW - mathematical models KW - Mars KW - seasonal variations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mars+dust+storms%3B+interannual+variability+and+chaos&rft.au=Ingersoll%2C+Andrew+P%3BLyons%2C+James+R%3BHaberle%2C+Robert+M&rft.aulast=Ingersoll&rft.aufirst=Andrew&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00676 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; chaos; circulation; dust storms; Mars; mathematical models; planets; seasonal variations; terrestrial planets; theoretical studies DO - http://dx.doi.org/10.1029/93JE00676 ER - TY - JOUR T1 - The Martian annual atmospheric pressure cycle; years without great dust storms AN - 50180285; 1993-020873 AB - A model of the annual cycle of pressure on Mars has been developed for a 2-year period chosen to include 1 year at Lander 2 and to minimize the effect of great dust storms at the 22 degrees N Lander 1 site. The model was developed by weighted least squares fitting of the Viking Lander pressure measurements to an annual mean, and fundamental and the first four harmonics of the annual cycle. The very close agreement between the two years suggests that an accurate representation of the annual CO (sub 2) condensation - sublimation cycle can be established for such years. The two annual mean pressures are identical to 0.006 mbar out of 7.9 mbar, and the differences in amplitudes for the first five periodic components between the two years range from 0.017 to 0.001 mbar. The phase angles, primarily dependent on solar insolation determined orbital dynamics, differ by -3.0 degrees L (sub s) for the second harmonic (year 1 minus year 2), and drop to < or = 0.7 degrees for the fundamental and fourth harmonic. Although the slight year-to-year differences appear to be real, this model is proposed as a "nominal" Martian annual pressure cycle and applications are suggested. By analogy, the corresponding first year's representation at Lander 2 is also proposed as the "nominal" cycle, although it has not been verified by data from a subsequent year. These models provide a method of removing low frequencies from the annual pressure cycle for spectral analyses of baroclinic, tidal, and normal mode oscillations, and for comparisons of the interannual variability. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Tillman, James E AU - Johnson, Neal C AU - Guttorp, Peter AU - Percival, Donald B AU - Haberle, Robert M Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 10,971 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - models KW - dust storms KW - cycles KW - planets KW - pressure KW - annual variations KW - atmospheric pressure KW - atmosphere KW - Mars KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+Martian+annual+atmospheric+pressure+cycle%3B+years+without+great+dust+storms&rft.au=Tillman%2C+James+E%3BJohnson%2C+Neal+C%3BGuttorp%2C+Peter%3BPercival%2C+Donald+B%3BHaberle%2C+Robert+M&rft.aulast=Tillman&rft.aufirst=James&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE01084 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Martian surface and atmosphere through time workshop N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - 2 tables, illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - annual variations; atmosphere; atmospheric pressure; cycles; dust storms; Mars; models; planets; pressure; terrestrial planets DO - http://dx.doi.org/10.1029/93JE01084 ER - TY - JOUR T1 - The obliquity of Mars and "climate friction" AN - 50180146; 1993-020863 AB - The mean obliquity of Mars may have increased over geologic time due to climatic changes associated with obliquity oscillations; this mechanism is dubbed "climate friction." Given here is the mathematical theory of climate friction. Also, a 10 m.y. numerical integration of the equations for a hypothetically large amount of climate friction is performed, for the cases of the obliquity oscillations being (1) a single sinusoid and (2) a sum of three sinusoids. Theory and numerics agree in both cases within about 12% on the size of the secular increase in obliquity, with most of the discrepancy coming from the theory giving obliquity amplitudes approximately 10% too large. Further, one possible mechanism of climate friction is investigated here: " postglacial rebound " on Mars. The idea is that giant polar caps form when the obliquity is low. These caps slowly squeeze out an equatorial bulge. When the obliquity is high, the caps disappear, but the bulge takes some time to collapse, due to mantle viscosity. Thus the equatorial bulge oscillates but is out of phase with the obliquity oscillations. Like tidal friction, this causes a secular increase in the average obliquity. Using the preferred climate model of Francois et al. (1990), the total secular increase in the obliquity over the age of the solar system can amount to about 10 degrees if Mars' mantle has an Earthlike effective viscosity of 3 X10 (super 21) Pa s (3 X10 (super 22) P). The secular change is negligible for effective viscosities which differ by more than a factor of 10 from this value. Last, how much climate friction tipped the Earth is presently unknown. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Rubincam, David Parry Y1 - 1993/06// PY - 1993 DA - June 1993 SP - 10 EP - 10,832 PB - American Geophysical Union, Washington, DC VL - 98 IS - E6 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - cycles KW - planets KW - theoretical studies KW - obliquity of the ecliptic KW - secular variations KW - climate effects KW - friction KW - mathematical models KW - Mars KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180146?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+obliquity+of+Mars+and+%22climate+friction%22&rft.au=Rubincam%2C+David+Parry&rft.aulast=Rubincam&rft.aufirst=David&rft.date=1993-06-01&rft.volume=98&rft.issue=E6&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00999 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - climate effects; cycles; friction; Mars; mathematical models; obliquity of the ecliptic; planets; secular variations; terrestrial planets; theoretical studies DO - http://dx.doi.org/10.1029/93JE00999 ER - TY - GEN T1 - The Exploration of Mars. Educational Brief: Planetary Science, Grades 8-12. AN - 62705325; ED384517 AB - This booklet gives a history of human observations of Mars, including observations made from U.S. unmanned spacecraft. Also included is a discussion, "Encountering a New World: How to Explore a Planet," which contains classroom discussion questions and four classroom activities. The classroom activities include: (1) How to explore a planet; (2) Geography and mission planning; (3) Magnetic Material in the soil; and (4) a close look at Valles Marineris which includes a map of the Valles Marineris Canyon System in comparison with the United States. (MKR) Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 10 KW - Mars (Planet) KW - ERIC, Resources in Education (RIE) KW - Teachers KW - Practitioners KW - Science Education KW - Earth Science KW - Science Activities KW - Space Exploration KW - Space Sciences KW - Secondary Education UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62705325?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Implementation of a parallel-vector solution algorithm for ground-water flow modeling with "MODFLOW" AN - 52754263; 1997-021634 JF - Eos, Transactions, American Geophysical Union AU - Morrow, D M AU - Holter, B AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 157 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - hydrology KW - three-dimensional models KW - data processing KW - MODFLOW KW - equations KW - simulation KW - layered materials KW - ground water KW - flows KW - aquifers KW - models KW - computer programs KW - movement KW - algorithms KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52754263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Implementation+of+a+parallel-vector+solution+algorithm+for+ground-water+flow+modeling+with+%22MODFLOW%22&rft.au=Morrow%2C+D+M%3BHolter%2C+B%3BAnonymous&rft.aulast=Morrow&rft.aufirst=D&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - algorithms; aquifers; computer programs; data processing; equations; flows; ground water; hydrology; layered materials; models; MODFLOW; movement; simulation; three-dimensional models ER - TY - JOUR T1 - Magnetic record in the Antarctic ice cap AN - 51436012; 2007-053337 JF - Eos, Transactions, American Geophysical Union AU - Wasilewski, P J AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 310 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Antarctica KW - magnetic minerals KW - ice KW - oxides KW - magnetic anomalies KW - particulate materials KW - glacial geology KW - magnetite KW - ice caps KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51436012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Magnetic+record+in+the+Antarctic+ice+cap&rft.au=Wasilewski%2C+P+J%3BAnonymous&rft.aulast=Wasilewski&rft.aufirst=P&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=310&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Antarctica; glacial geology; ice; ice caps; magnetic anomalies; magnetic minerals; magnetite; oxides; particulate materials ER - TY - JOUR T1 - Does rapid ice movement modulate strain accumulation and earthquake occurrence in glaciated tectonically active regions? AN - 51434242; 2007-053354 JF - Eos, Transactions, American Geophysical Union AU - Cohen, Steven AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 312 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - strain KW - plate boundaries KW - loading KW - elastic properties KW - stress KW - deformation KW - ice movement KW - plate tectonics KW - ice KW - thickness KW - tectonics KW - glacial geology KW - earthquakes KW - crust KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51434242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Does+rapid+ice+movement+modulate+strain+accumulation+and+earthquake+occurrence+in+glaciated+tectonically+active+regions%3F&rft.au=Cohen%2C+Steven%3BAnonymous&rft.aulast=Cohen&rft.aufirst=Steven&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=312&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - crust; deformation; earthquakes; elastic properties; glacial geology; ice; ice movement; loading; plate boundaries; plate tectonics; strain; stress; tectonics; thickness ER - TY - JOUR T1 - Obliquity-oblateness feedback; are climatically sensitive values of obliquity dynamically unstable? AN - 51433858; 2007-053361 JF - Eos, Transactions, American Geophysical Union AU - Bills, Bruce G AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 313 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - time scales KW - models KW - oblique orientation KW - rotation KW - solar radiation KW - climate effects KW - orbital observations KW - simulation KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51433858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Obliquity-oblateness+feedback%3B+are+climatically+sensitive+values+of+obliquity+dynamically+unstable%3F&rft.au=Bills%2C+Bruce+G%3BAnonymous&rft.aulast=Bills&rft.aufirst=Bruce&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=313&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - climate effects; models; oblique orientation; orbital observations; rotation; simulation; solar radiation; time scales ER - TY - JOUR T1 - 1855 and 1991 surveys across the San Andreas Fault in the Carrizo Plain; implications for fault mechanics AN - 51409374; 2007-076517 JF - Eos, Transactions, American Geophysical Union AU - Grant, Lisa B AU - Donnellan, Andrea AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 106 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - elasticity KW - strain KW - San Luis Obispo County California KW - rates KW - deformation KW - California KW - Southern California KW - Carrizo Plain KW - San Andreas Fault KW - velocity structure KW - mechanics KW - tectonics KW - Wallace Creek KW - interpretation KW - earthquakes KW - seismotectonics KW - faults KW - crust KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51409374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=1855+and+1991+surveys+across+the+San+Andreas+Fault+in+the+Carrizo+Plain%3B+implications+for+fault+mechanics&rft.au=Grant%2C+Lisa+B%3BDonnellan%2C+Andrea%3BAnonymous&rft.aulast=Grant&rft.aufirst=Lisa&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - California; Carrizo Plain; crust; deformation; earthquakes; elasticity; faults; interpretation; mechanics; rates; San Andreas Fault; San Luis Obispo County California; seismotectonics; Southern California; strain; tectonics; United States; velocity structure; Wallace Creek ER - TY - JOUR T1 - Rapid EOP variations measured by VLBI AN - 51408473; 2007-076499 JF - Eos, Transactions, American Geophysical Union AU - Gipson, J M AU - Chao, B AU - Ma, C AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 103 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - models KW - orientation KW - geodynamics KW - Earth KW - rotation KW - very long baseline interferometry KW - geodesy KW - variations KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51408473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Rapid+EOP+variations+measured+by+VLBI&rft.au=Gipson%2C+J+M%3BChao%2C+B%3BMa%2C+C%3BAnonymous&rft.aulast=Gipson&rft.aufirst=J&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Earth; geodesy; geodynamics; models; orientation; rotation; variations; very long baseline interferometry ER - TY - JOUR T1 - Archiving and distribution of GPS data and products by the IGS network centers AN - 51403504; 2007-076508 JF - Eos, Transactions, American Geophysical Union AU - Noll, C E AU - Bock, Y AU - Daniel, L AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 104 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Global Positioning System KW - geodynamics KW - Earth KW - rotation KW - International GPS Geodynamics Service KW - applications KW - interpretation KW - information management KW - distribution KW - data management KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51403504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Archiving+and+distribution+of+GPS+data+and+products+by+the+IGS+network+centers&rft.au=Noll%2C+C+E%3BBock%2C+Y%3BDaniel%2C+L%3BAnonymous&rft.aulast=Noll&rft.aufirst=C&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=104&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - applications; data management; distribution; Earth; geodynamics; Global Positioning System; information management; International GPS Geodynamics Service; interpretation; rotation ER - TY - JOUR T1 - The contribution of LAGEOS-2 to geopotential investigations AN - 51403469; 2007-076482 JF - Eos, Transactions, American Geophysical Union AU - Nerem, R S AU - Smith, D E AU - Klosko, S M AU - Torrence, M H AU - Williamson, R G AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 98 EP - 99 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - models KW - gravity field KW - potential field KW - LAGEOS-2 KW - applications KW - interpretation KW - satellite methods KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51403469?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%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+contribution+of+LAGEOS-2+to+geopotential+investigations&rft.au=Nerem%2C+R+S%3BSmith%2C+D+E%3BKlosko%2C+S+M%3BTorrence%2C+M+H%3BWilliamson%2C+R+G%3BAnonymous&rft.aulast=Nerem&rft.aufirst=R&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=98&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - applications; gravity field; interpretation; LAGEOS-2; models; potential field; remote sensing; satellite methods ER - TY - JOUR T1 - GAMES; a Gravity-And-Magnetics-Experiment-Satellite for oceanography and solid Earth science AN - 51403461; 2007-076481 JF - Eos, Transactions, American Geophysical Union AU - Frey, H AU - Abshire, J AU - Bills, B AU - Connerney, J AU - Johnson, B AU - Langel, R AU - Lerch, F AU - Nerem, S AU - Pavlis, Erricos C AU - Skillman, D AU - Smith, D AU - Taylor, P AU - Voorhies, C AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 97 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - gravity field KW - experimental studies KW - geophysical profiles KW - interpretation KW - satellite methods KW - magnetic field KW - GAMES KW - remote sensing KW - oceanography KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51403461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=GAMES%3B+a+Gravity-And-Magnetics-Experiment-Satellite+for+oceanography+and+solid+Earth+science&rft.au=Frey%2C+H%3BAbshire%2C+J%3BBills%2C+B%3BConnerney%2C+J%3BJohnson%2C+B%3BLangel%2C+R%3BLerch%2C+F%3BNerem%2C+S%3BPavlis%2C+Erricos+C%3BSkillman%2C+D%3BSmith%2C+D%3BTaylor%2C+P%3BVoorhies%2C+C%3BAnonymous&rft.aulast=Frey&rft.aufirst=H&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - experimental studies; GAMES; geophysical profiles; gravity field; interpretation; magnetic field; oceanography; remote sensing; satellite methods ER - TY - JOUR T1 - VLBI EOP observations during the EPOCH-92 campaign AN - 51402934; 2007-076511 JF - Eos, Transactions, American Geophysical Union AU - Ma, C AU - Clark, T A AU - Ryan, J W AU - Gipson, J M AU - MacMillan, D S AU - Thomas, C C AU - Vandenberg, N R AU - Gordon, D AU - Niell, A E AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 105 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - models KW - programs KW - Global Positioning System KW - Earth KW - rotation KW - EPOCH-92 KW - applications KW - very long baseline interferometry KW - geodesy KW - observations KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51402934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=VLBI+EOP+observations+during+the+EPOCH-92+campaign&rft.au=Ma%2C+C%3BClark%2C+T+A%3BRyan%2C+J+W%3BGipson%2C+J+M%3BMacMillan%2C+D+S%3BThomas%2C+C+C%3BVandenberg%2C+N+R%3BGordon%2C+D%3BNiell%2C+A+E%3BAnonymous&rft.aulast=Ma&rft.aufirst=C&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - applications; Earth; EPOCH-92; geodesy; Global Positioning System; models; observations; programs; rotation; very long baseline interferometry ER - TY - JOUR T1 - Global site velocities from satellite laser ranging; Sl-8; an ongoing basis for future densification studies AN - 51398964; 2007-076525 JF - Eos, Transactions, American Geophysical Union AU - Robbins, J W AU - Torrence, M H AU - Dunn, P J AU - Williamson, R G AU - Smith, D E AU - Kolenkiewicz, R AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 107 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - kinematics KW - plate tectonics KW - three-dimensional models KW - velocity KW - applications KW - deformation KW - satellite methods KW - crust KW - remote sensing KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51398964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Global+site+velocities+from+satellite+laser+ranging%3B+Sl-8%3B+an+ongoing+basis+for+future+densification+studies&rft.au=Robbins%2C+J+W%3BTorrence%2C+M+H%3BDunn%2C+P+J%3BWilliamson%2C+R+G%3BSmith%2C+D+E%3BKolenkiewicz%2C+R%3BAnonymous&rft.aulast=Robbins&rft.aufirst=J&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - applications; crust; deformation; kinematics; plate tectonics; remote sensing; satellite methods; three-dimensional models; velocity ER - TY - JOUR T1 - Experimental partial melting of the Allende (CV) and Murchison (CM) chondrites and the origin of asteroidal basalts AN - 50354843; 1993-012601 AB - The results of these experiments show that in general, ambient oxygen fugacity strongly influences the compositions and partial melts of chondrites, mainly because function signO (sub 2) controls the amount of FeO available to the silicate system. At high function signO (sub 2) the phase relations of melts produced from Allende more closely match those inferred for natural angrites than do melts of Murchison, and these difference are discussed. Very different magma compositions can be obtained by changing the redox state of the source regions of basalts. Thus reducing conditions produce tholeiitic magmas and oxidizing conditions produce SiO (sub 2) -undersaturated magmas. Variation in redox and volatiles in the asteroid belt may thus cause variations in the composition of asteroid basalts. JF - Geochimica et Cosmochimica Acta AU - Jurewicz, A J G AU - Mittlefehldt, D W AU - Jones, J H Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 2123 EP - 2139 PB - Pergamon, Oxford VL - 57 IS - 9 SN - 0016-7037, 0016-7037 KW - experimental studies KW - volcanic rocks KW - stony meteorites KW - asteroids KW - igneous rocks KW - angrite KW - partial melting KW - carbonaceous chondrites KW - CV chondrites KW - achondrites KW - fugacity KW - Murchison Meteorite KW - Allende Meteorite KW - tholeiitic composition KW - meteorites KW - basalts KW - eucrite KW - CM chondrites KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50354843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Experimental+partial+melting+of+the+Allende+%28CV%29+and+Murchison+%28CM%29+chondrites+and+the+origin+of+asteroidal+basalts&rft.au=Jurewicz%2C+A+J+G%3BMittlefehldt%2C+D+W%3BJones%2C+J+H&rft.aulast=Jurewicz&rft.aufirst=A+J&rft.date=1993-05-01&rft.volume=57&rft.issue=9&rft.spage=2123&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990098-H 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 - 1993-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - achondrites; Allende Meteorite; angrite; asteroids; basalts; carbonaceous chondrites; chondrites; CM chondrites; CV chondrites; eucrite; experimental studies; fugacity; igneous rocks; meteorites; Murchison Meteorite; partial melting; stony meteorites; tholeiitic composition; volcanic rocks DO - http://dx.doi.org/10.1016/0016-7037(93)90098-H ER - TY - JOUR T1 - Antarctic polymict eucrite Yamato 792769 and the cratering record on the HED parent body AN - 50354810; 1993-012600 AB - Yamato Y792769 is a polymict breccia containing pyroxenes of a limited range in chemical compositions. Compared to most other Yamato polymict eucrites, Y792769 includes fewer and smaller eucritic clasts with homogenized pyroxenes. Its fine-grained matrix is shock-compacted and sintered. The time of the last thermal event, which produced this texture and formed the breccia, is determined by the well-defined Ar-39/Ar-40 age of 3.99 +/- 0.04 Ga. The complete resetting of the Ar-39/Ar-40 age is consistent with the texture of Y792769, as viewed in the transmission electron microscope (TEM), which suggests shock compaction converted part of the matrix plagioclase to maskelynite. Sm-Nd data define an apparent isochron corresponding to an age of 4.23 +/- 0.12 Ga. Sm-Nd data for relict pyroxenes fall on a 4.56-Ga Sm-Nd reference isochron and on or above a 4.56-Ga Rb-Sr reference isochron, suggesting slight loss of rubidium during breccia formation. The pyroxene data are most suggestive of a "conventional" ca. 4.56 Ga age for the protolith rocks. The 3.99 Ga Ar-39/Ar-40 age predates the accepted age of formation of the lunar Imbrium and Serenitatis basins, but probably reflects a period of intense meteoroid bombardment that affected the entire inner solar system. (Auth.) JF - Geochimica et Cosmochimica Acta AU - Bogard, D AU - Nyquist, L AU - Takeda, H AU - Mori, H AU - Aoyama, T AU - Bansal, B AU - Wiesmann, H AU - Shih, C Y Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 2111 EP - 2121 PB - Pergamon, Oxford VL - 57 IS - 9 SN - 0016-7037, 0016-7037 KW - silicates KW - Yamato Meteorites KW - stony meteorites KW - isotopes KW - isotope ratios KW - metamorphism KW - achondrites KW - TEM data KW - stable isotopes KW - argon KW - Ar-40/Ar-39 KW - meteorites KW - radioactive isotopes KW - pyroxene group KW - Antarctica KW - Sm/Nd KW - lava KW - noble gases KW - parent materials KW - eucrite KW - basaltic composition KW - shock metamorphism KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50354810?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Antarctic+polymict+eucrite+Yamato+792769+and+the+cratering+record+on+the+HED+parent+body&rft.au=Bogard%2C+D%3BNyquist%2C+L%3BTakeda%2C+H%3BMori%2C+H%3BAoyama%2C+T%3BBansal%2C+B%3BWiesmann%2C+H%3BShih%2C+C+Y&rft.aulast=Bogard&rft.aufirst=D&rft.date=1993-05-01&rft.volume=57&rft.issue=9&rft.spage=2111&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990097-G L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1993-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; Ar-40/Ar-39; argon; basaltic composition; chain silicates; eucrite; isotope ratios; isotopes; lava; metamorphism; meteorites; noble gases; parent materials; pyroxene group; radioactive isotopes; shock metamorphism; silicates; Sm/Nd; stable isotopes; stony meteorites; TEM data; Yamato Meteorites DO - http://dx.doi.org/10.1016/0016-7037(93)90097-G ER - TY - JOUR T1 - Evolution in the use of satellite data for the location and development of groundwater AN - 50353387; 1993-017021 JF - Advances in Space Research AU - Dutartre, P AU - Coudert, J M AU - Delpont, G A2 - Gower, J. F. R. A2 - Salomonson, V. V. A2 - Engman, E. T. A2 - Ormsby, J. P. A2 - Gupta, R. K. Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 187 EP - 195 PB - Pergamon, Oxford-New York VL - 13 IS - 5 SN - 0273-1177, 0273-1177 KW - models KW - imagery KW - movement KW - water management KW - applications KW - interpretation KW - water resources KW - satellite methods KW - remote sensing KW - ground water KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50353387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Space+Research&rft.atitle=Evolution+in+the+use+of+satellite+data+for+the+location+and+development+of+groundwater&rft.au=Dutartre%2C+P%3BCoudert%2C+J+M%3BDelpont%2C+G&rft.aulast=Dutartre&rft.aufirst=P&rft.date=1993-05-01&rft.volume=13&rft.issue=5&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Conference title - Symposia A5, A3 and A9 of the COSPAR twenty-ninth plenary meeting on Remote sensing for oceanography, hydrology and agriculture N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 5 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - applications; ground water; imagery; interpretation; models; movement; remote sensing; satellite methods; water management; water resources ER - TY - JOUR T1 - Symposia A5, A3 and A9 of the COSPAR twenty-ninth plenary meeting on Remote sensing for oceanography, hydrology and agriculture AN - 50352746; 1993-017019 JF - Advances in Space Research A2 - Gower, J. F. R. A2 - Salomonson, V. V. A2 - Engman, E. T. A2 - Ormsby, J. P. A2 - Gupta, R. K. Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 284 PB - Pergamon, Oxford-New York VL - 13 IS - 5 SN - 0273-1177, 0273-1177 KW - hydrology KW - symposia KW - agriculture KW - satellite methods KW - remote sensing KW - oceanography KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50352746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=Advances+in+Space+Research&rft.atitle=Symposia+A5%2C+A3+and+A9+of+the+COSPAR+twenty-ninth+plenary+meeting+on+Remote+sensing+for+oceanography%2C+hydrology+and+agriculture&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1993-05-01&rft.volume=13&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Conference title - Symposia A5, A3 and A9 of the COSPAR twenty-ninth plenary meeting on Remote sensing for oceanography, hydrology and agriculture N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Document feature - illus. incl. tables, sects., geol. sketch maps N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - agriculture; hydrology; oceanography; remote sensing; satellite methods; symposia ER - TY - JOUR T1 - Study of sediment dynamics using satellite remote sensing AN - 50352059; 1993-017020 JF - Advances in Space Research AU - Manikiam, B AU - Honne Gowda, H AU - Manavalan, P AU - Jayaraman, V AU - Chandrasekhar, M G A2 - Gower, J. F. R. A2 - Salomonson, V. V. A2 - Engman, E. T. A2 - Ormsby, J. P. A2 - Gupta, R. K. Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 75 EP - 78 PB - Pergamon, Oxford-New York VL - 13 IS - 5 SN - 0273-1177, 0273-1177 KW - sea water KW - Mangalore India KW - offshore KW - data processing KW - suspended materials KW - properties KW - satellite methods KW - India KW - marine sediments KW - Indian Peninsula KW - digital simulation KW - sediments KW - Karnataka India KW - Asia KW - remote sensing KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50352059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Space+Research&rft.atitle=Study+of+sediment+dynamics+using+satellite+remote+sensing&rft.au=Manikiam%2C+B%3BHonne+Gowda%2C+H%3BManavalan%2C+P%3BJayaraman%2C+V%3BChandrasekhar%2C+M+G&rft.aulast=Manikiam&rft.aufirst=B&rft.date=1993-05-01&rft.volume=13&rft.issue=5&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Conference title - Symposia A5, A3 and A9 of the COSPAR twenty-ninth plenary meeting on Remote sensing for oceanography, hydrology and agriculture N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 21 N1 - Document feature - sects. N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - Asia; data processing; digital simulation; India; Indian Peninsula; Karnataka India; Mangalore India; marine sediments; offshore; properties; remote sensing; satellite methods; sea water; sediments; suspended materials ER - TY - JOUR T1 - Formation of the Sudbury igneous complex by impact-induced crustal anatexis AN - 50300645; 1994-004204 JF - Eos, Transactions, American Geophysical Union AU - Lowman, P D, Jr AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 301 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Sudbury igneous complex KW - genesis KW - plutonic rocks KW - impact features KW - Canada KW - igneous rocks KW - granites KW - anatexis KW - Eastern Canada KW - Ontario KW - igneous activity KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50300645?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Formation+of+the+Sudbury+igneous+complex+by+impact-induced+crustal+anatexis&rft.au=Lowman%2C+P+D%2C+Jr%3BAnonymous&rft.aulast=Lowman&rft.aufirst=P&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geological Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anatexis; Canada; Eastern Canada; genesis; granites; igneous activity; igneous rocks; impact features; Ontario; plutonic rocks; Sudbury igneous complex ER - TY - JOUR T1 - Use of REE partitioning to constrain redox conditions during crystallization of an angritic meteorite AN - 50294833; 1994-004293 JF - Eos, Transactions, American Geophysical Union AU - McKay, G AU - Wagstaff, J AU - Le, L AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 341 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - calcium KW - alkaline earth metals KW - stony meteorites KW - angrite KW - silicon KW - achondrites KW - iron KW - fugacity KW - partitioning KW - meteorites KW - phase equilibria KW - titanium KW - metals KW - aluminum KW - crystallization KW - rare earths KW - Eh 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/50294833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Use+of+REE+partitioning+to+constrain+redox+conditions+during+crystallization+of+an+angritic+meteorite&rft.au=McKay%2C+G%3BWagstaff%2C+J%3BLe%2C+L%3BAnonymous&rft.aulast=McKay&rft.aufirst=G&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; aluminum; angrite; calcium; crystallization; Eh; fugacity; iron; metals; meteorites; partitioning; phase equilibria; rare earths; silicon; stony meteorites; titanium ER - TY - JOUR T1 - Experimental trace element partitioning; a status report fifteen years after Sedona AN - 50292873; 1994-004267 JF - Eos, Transactions, American Geophysical Union AU - Jones, J H AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 337 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - partitioning KW - experimental studies KW - noble gases KW - metals KW - trace elements KW - carbonates KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50292873?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Experimental+trace+element+partitioning%3B+a+status+report+fifteen+years+after+Sedona&rft.au=Jones%2C+J+H%3BAnonymous&rft.aulast=Jones&rft.aufirst=J&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - carbonates; experimental studies; metals; noble gases; partitioning; silicates; trace elements ER - TY - JOUR T1 - Geochemistry and petrology of a suite of ten Yamato HED meteorites AN - 50241280; 1994-033218 AB - Petrological characterization and geochemical studies were performed by instrumental neutron activation analysis of a suite of 10 Yamato HED samples: Y-74013, Y-74097 and Y-74136 (Type A diogenites); Y-75032 and Y-791199 (Type B diogenites); Y-791195 (cumulate eucrite); Y-793164 and Y-82066 (eucrites); and Y-791192 and Y-82049 (polymict eucrites). The Type A diogenites are essentially identical in composition except for slight differences in Cr, Co, Se and La, which are likely due to inhomogeneous distribution of the minor phases chromite, metal and troilite, and trapped interstitial melt, respectively. The petrology and REE patterns for Type B diogenites show that they are not adcumulate rocks, but rather contain substantial, perhaps 15%, interstitial liquid trapped in the samples. (Auth. mod.) JF - Proceedings of the NIPR Symposium on Antarctic Meteorites AU - Mittlefehldt, David W AU - Lindstrom, Marilyn M A2 - Yanai, Keizo A2 - Kojima, Hideyasu A2 - Misawa, Keiji A2 - Takaoka, Nobuo A2 - Yoshida, Yoshio Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 268 EP - 292 PB - National Institute of Polar Research, Tokyo VL - 6 SN - 0914-5621, 0914-5621 KW - Yamato Meteorites KW - volcanic rocks KW - stony meteorites KW - igneous rocks KW - partial melting KW - diogenite KW - achondrites KW - meteorites KW - mineral composition KW - howardite KW - metals KW - magmas KW - basalts KW - eucrite KW - fractional crystallization KW - trace elements KW - chemical composition 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/50241280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+NIPR+Symposium+on+Antarctic+Meteorites&rft.atitle=Geochemistry+and+petrology+of+a+suite+of+ten+Yamato+HED+meteorites&rft.au=Mittlefehldt%2C+David+W%3BLindstrom%2C+Marilyn+M&rft.aulast=Mittlefehldt&rft.aufirst=David&rft.date=1993-05-01&rft.volume=6&rft.issue=&rft.spage=268&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+NIPR+Symposium+on+Antarctic+Meteorites&rft.issn=09145621&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 17th symposium on Antarctic meteorites N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1994-01-01 N1 - Number of references - 51 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - achondrites; basalts; chemical composition; diogenite; eucrite; fractional crystallization; howardite; igneous rocks; magmas; metals; meteorites; mineral composition; partial melting; stony meteorites; trace elements; volcanic rocks; Yamato Meteorites ER - TY - JOUR T1 - Spectral comparison between olivine-rich asteroids and pallasites AN - 50241252; 1994-033216 AB - Reflectance spectra of two pallasites were measured and compared with four reflectance spectra of olivine-rich asteroids. Bidirectional reflectance spectra (0.3-2.6 microns) were measured at several different points on chips of Yamato(Y)-8471 and Imilac pallasite. A metal-rich part of Y-8451 showed a reflectance spectrum very similar to 113 Amalthea. Other olivine-rich asteroids could not be fit well even by combining all the measured reflectance spectra of those two pallasites. Some kind of regolith process seems to be important in producing those reflectance spectra. Y-8451 is unusual as a pallasite. Its olivine grains are much smaller than usual pallasites, the Fa value is the lowest, and both orthopyroxene and inverted protoenstatite are present. Their Fe/(Fe+Mg) ratios correspond to a formation temperature of 1135 C. Y-8451 is similar to metal-rich primitive achondrites such as Y-791058, which is therefore also examined in this study. 113 Amalthea is another example of the S asteroids whose reflectance spectra can be approximated with a stony-iron model. (Auth.) JF - Proceedings of the NIPR Symposium on Antarctic Meteorites AU - Hiroi, Takahiro AU - Bell, Jeffrey F AU - Takeda, Hiroshi AU - Pieters, Carle M A2 - Yanai, Keizo A2 - Kojima, Hideyasu A2 - Misawa, Keiji A2 - Takaoka, Nobuo A2 - Yoshida, Yoshio Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 234 EP - 245 PB - National Institute of Polar Research, Tokyo VL - 6 SN - 0914-5621, 0914-5621 KW - stony irons KW - silicates KW - Yamato Meteorites KW - asteroids KW - olivine group KW - nesosilicates KW - meteorites KW - mineral composition KW - olivine KW - orthosilicates KW - spectra KW - pallasite KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50241252?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+NIPR+Symposium+on+Antarctic+Meteorites&rft.atitle=Spectral+comparison+between+olivine-rich+asteroids+and+pallasites&rft.au=Hiroi%2C+Takahiro%3BBell%2C+Jeffrey+F%3BTakeda%2C+Hiroshi%3BPieters%2C+Carle+M&rft.aulast=Hiroi&rft.aufirst=Takahiro&rft.date=1993-05-01&rft.volume=6&rft.issue=&rft.spage=234&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+NIPR+Symposium+on+Antarctic+Meteorites&rft.issn=09145621&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 17th symposium on Antarctic meteorites N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States N1 - Date revised - 1994-01-01 N1 - Number of references - 19 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; meteorites; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; pallasite; silicates; spectra; stony irons; Yamato Meteorites ER - TY - JOUR T1 - Measurements of trace element partitioning by a new technique utilizing micro-coring of thin sections and micro-INAA AN - 50212610; 1994-051306 JF - Eos, Transactions, American Geophysical Union AU - Lindstrom, D J AU - Phinney, W C AU - Martinez, R R AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 343 EP - 344 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - micro-coring KW - methods KW - separation KW - matrix KW - Mulcahy Lake Gabbro KW - thin sections KW - reaction rims KW - partitioning KW - microscope methods KW - neutron activation analysis KW - trace elements KW - chemical composition KW - phenocrysts 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/50212610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Measurements+of+trace+element+partitioning+by+a+new+technique+utilizing+micro-coring+of+thin+sections+and+micro-INAA&rft.au=Lindstrom%2C+D+J%3BPhinney%2C+W+C%3BMartinez%2C+R+R%3BAnonymous&rft.aulast=Lindstrom&rft.aufirst=D&rft.date=1993-05-01&rft.volume=74&rft.issue=16%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, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chemical composition; matrix; methods; micro-coring; microscope methods; Mulcahy Lake Gabbro; neutron activation analysis; partitioning; phenocrysts; reaction rims; separation; thin sections; trace elements ER - TY - JOUR T1 - Evidence for boundary layer enrichment of slow-diffusing elements in rhyolitic melt inclusions in quartz from Paleozoic K-bentonites AN - 50210802; 1994-051347 JF - Eos, Transactions, American Geophysical Union AU - Hanson, B AU - Delano, J W AU - Lindstrom, D J AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 349 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - silicates KW - volcanic rocks KW - silica minerals KW - igneous rocks KW - crystal growth KW - melts KW - sedimentary rocks KW - inclusions KW - framework silicates KW - rare earths KW - boundary layer KW - rhyolites KW - bentonite KW - Paleozoic KW - genesis KW - New York KW - metals KW - magmas KW - quartz KW - K-bentonite KW - Pennsylvania KW - clastic rocks KW - phenocrysts 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/50210802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Evidence+for+boundary+layer+enrichment+of+slow-diffusing+elements+in+rhyolitic+melt+inclusions+in+quartz+from+Paleozoic+K-bentonites&rft.au=Hanson%2C+B%3BDelano%2C+J+W%3BLindstrom%2C+D+J%3BAnonymous&rft.aulast=Hanson&rft.aufirst=B&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=349&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bentonite; boundary layer; clastic rocks; crystal growth; framework silicates; genesis; igneous rocks; inclusions; K-bentonite; magmas; melts; metals; New York; Paleozoic; Pennsylvania; phenocrysts; quartz; rare earths; rhyolites; sedimentary rocks; silica minerals; silicates; United States; volcanic rocks ER - TY - JOUR T1 - Reduced convective time scales under weak rotation AN - 50208404; 1994-053195 JF - Eos, Transactions, American Geophysical Union AU - Wolff, C L AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 192 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Galileo Program KW - Jupiter KW - fluid phase KW - troposphere KW - convection KW - giant planets KW - models KW - planets KW - motions KW - theoretical studies KW - time factor KW - rotation KW - mixing KW - heat flow KW - Sun KW - mathematical methods KW - outer planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50208404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Reduced+convective+time+scales+under+weak+rotation&rft.au=Wolff%2C+C+L%3BAnonymous&rft.aulast=Wolff&rft.aufirst=C&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=192&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - convection; fluid phase; Galileo Program; giant planets; heat flow; Jupiter; mathematical methods; mixing; models; motions; outer planets; planets; rotation; Sun; theoretical studies; time factor; troposphere ER - TY - JOUR T1 - A delta (super 13) C record of declining atmospheric CO (sub 2) levels from 2.0 to 0.8 billion years ago? AN - 50189109; 1995-011352 JF - Eos, Transactions, American Geophysical Union AU - Des Marais, D J AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 182 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - organic materials KW - fixation KW - upper Precambrian KW - Precambrian KW - oxygen KW - isotopes KW - isotope ratios KW - paleoatmosphere KW - C-13/C-12 KW - sedimentation KW - Proterozoic KW - stable isotopes KW - carbon dioxide KW - organic compounds KW - carbon KW - kerogen KW - chemical composition KW - carbonates KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50189109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+delta+%28super+13%29+C+record+of+declining+atmospheric+CO+%28sub+2%29+levels+from+2.0+to+0.8+billion+years+ago%3F&rft.au=Des+Marais%2C+D+J%3BAnonymous&rft.aulast=Des+Marais&rft.aufirst=D&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=182&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; carbon dioxide; carbonates; chemical composition; fixation; isotope ratios; isotopes; kerogen; organic compounds; organic materials; oxygen; paleoatmosphere; Precambrian; Proterozoic; sedimentation; stable isotopes; upper Precambrian ER - TY - JOUR T1 - Solar-flare-implanted (super 4) He/ (super 3) He and solar-proton-produced Ne and Ar concentration profiles in lunar rock 61016 AN - 50184625; 1993-040539 AB - Documented near-surface samples from oriented lunar rock 61016 have yielded the first measurements of depth profiles for (super 21) Ne, (super 22) Ne, and (super 38) Ar isotopes produced in situ from nuclear interactions of energetic solar flare protons. Further, the cosmogenic (super 21) Ne/ (super 22) Ne ratios are distinct for different proton energy ranges and increase systematically with increasing shielding. This variation in cosmogenic (super 21) Ne/ (super 22) Ne represents a progression from a mixed component produced from solar flare protons (SCR) and galactic cosmic rays (GCR) to a pure GCR component. Using the 2 m.y. exposure age for 61016, the calculated production rates for SCR (super 21) Ne and (super 38) Ar from solar energetic protons in near-surface samples agree within 5% and 25%, respectively, with theoretical estimates. Calculated GCR production rates for (super 21) Ne and (super 38) Ar in the deepest (26 mm) samples agree within 25% and 10%, respectively, with theoretical estimates. Combined SCR and GCR concentration profiles for (super 21) Ne, (super 22) Ne, and (super 38) Ar match theoretical calculations based on an omnidirectional flux above 10 MeV of 100 protons cm (super -2) s (super -1) with an exponential rigidity between 70 and 85 MV and a surface erosion rate of 1 mm m.y. (super -1) . Selectively etched, near-surface samples suggest a long-term average (super 4) He/ (super 3) He ratio of approximately 770 for implanted solar flare nuclei with E > approximately 4 MeV amu (super -1) , and a (super 4) He/ (super 3) He ratio of approximately 3450 for solar flare nuclei with E > approximately 1 MeV amu (super -1) . Averaged over long term, the solar flare (super 4) He/ (super 3) He ratio appears energy dependent. JF - Journal of Geophysical Research AU - Rao, M N AU - Garrison, D H AU - Bogard, D D AU - Reedy, R C Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 7827 EP - 7835 PB - American Geophysical Union, Washington, DC VL - 98 IS - A5 SN - 0148-0227, 0148-0227 KW - Ne-21 KW - Ne-22 KW - isotopes KW - igneous rocks KW - cosmogenic elements KW - Apollo Program KW - protons KW - Ar-38 KW - stable isotopes KW - geochemical profiles KW - radioactive isotopes KW - plutonic rocks KW - noble gases KW - neon KW - helium KW - solar activity KW - Moon KW - cosmochemistry KW - Sample 61016 KW - anorthosite KW - argon KW - genesis KW - lunar samples KW - He-4/He-3 KW - Apollo 16 KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50184625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Solar-flare-implanted+%28super+4%29+He%2F+%28super+3%29+He+and+solar-proton-produced+Ne+and+Ar+concentration+profiles+in+lunar+rock+61016&rft.au=Rao%2C+M+N%3BGarrison%2C+D+H%3BBogard%2C+D+D%3BReedy%2C+R+C&rft.aulast=Rao&rft.aufirst=M&rft.date=1993-05-01&rft.volume=98&rft.issue=A5&rft.spage=7827&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JA00002 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 39 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anorthosite; Apollo 16; Apollo Program; Ar-38; argon; cosmochemistry; cosmogenic elements; genesis; geochemical profiles; He-4/He-3; helium; igneous rocks; isotopes; lunar samples; Moon; Ne-21; Ne-22; neon; noble gases; plutonic rocks; protons; radioactive isotopes; Sample 61016; solar activity; stable isotopes DO - http://dx.doi.org/10.1029/93JA00002 ER - TY - JOUR T1 - Lava flow topographic measurements for radar data interpretation AN - 50176511; 1994-054334 AB - Surface topography is of great importance in radar backscattering, but the quantitative interpretation of data collected in the field is still a difficult problem. We present topographic profiles at 25-cm and 5-cm horizontal resolution for three sites along a lava flow on Kilauea Volcano, and use these data to illustrate techniques for surface roughness analysis. Height and slope distributions and the height autocorrelation function are evaluated as a function of varying lowpass filter wavelength for the 25-cm data. Rms slopes are found to increase rapidly with decreasing topographic scale and are typically much higher than those found by modeling of Magellan altimeter data for Venus. A more robust description of the surface roughness appears to be the ratio of rms height to surface height correlation length. For all three sites this parameter falls within the range of values typically found from model fits to Magellan altimeter waveforms. The 5-cm profile data are used to estimate the effect of small-scale roughness on quasi-specular scattering. JF - Geophysical Research Letters AU - Campbell, Bruce A AU - Garvin, James B Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 831 EP - 834 PB - American Geophysical Union, Washington, DC VL - 20 IS - 9 SN - 0094-8276, 0094-8276 KW - United States KW - Hawaii Island KW - lava flows KW - Hawaii County Hawaii KW - slopes KW - altitude KW - radar methods KW - Hawaii KW - East Pacific Ocean Islands KW - volcanic features KW - topography KW - Oceania KW - volcanoes KW - Polynesia KW - Kilauea KW - remote sensing KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50176511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Lava+flow+topographic+measurements+for+radar+data+interpretation&rft.au=Campbell%2C+Bruce+A%3BGarvin%2C+James+B&rft.aulast=Campbell&rft.aufirst=Bruce&rft.date=1993-05-01&rft.volume=20&rft.issue=9&rft.spage=831&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL00737 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 13 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - altitude; East Pacific Ocean Islands; Hawaii; Hawaii County Hawaii; Hawaii Island; Kilauea; lava flows; Oceania; Polynesia; radar methods; remote sensing; slopes; topography; United States; volcanic features; volcanoes DO - http://dx.doi.org/10.1029/93GL00737 ER - TY - JOUR T1 - Raman DIAL measurements of stratospheric ozone in the presence of volcanic aerosols AN - 50176344; 1994-052227 AB - Since the eruption of Mt. Pinatubo in June, 1991, measurements of atmospheric species which depend on Rayleigh scattering of radiation, have been severely compromised where the volcanic aerosol cloud exists. For the GSFC stratospheric ozone lidar, this has meant that ozone determination has been impossible below approximately 30 km. The GSFC lidar has been modified to detect Raman scattering from nitrogen molecules from transmitted laser wavelengths. The instrument transmits two laser wavelengths at 308 nm and 351 nm, and detects returns at four wavelengths; 308 nm, 332 nm, 351 nm, and 382 nm. Using this technique in conjunction with the Rayleigh DIAL measurement, ozone profiles have been measured between 15 and 50 km. Copyright 1993 by the American Geophysical Union. JF - Geophysical Research Letters AU - McGee, Thomas J AU - Gross, Michael AU - Ferrare, Richard AU - Heaps, William AU - Singh, Upendra Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 955 EP - 958 PB - American Geophysical Union, Washington, DC VL - 20 IS - 10 SN - 0094-8276, 0094-8276 KW - Luzon KW - Far East KW - laser methods KW - Lidar data KW - nitrogen KW - measurement KW - ozone KW - Raman spectra KW - stratosphere KW - Mount Pinatubo KW - Philippine Islands KW - aerosols KW - Differential Absorption Lidar method KW - spectra KW - volcanic ash KW - Asia KW - instruments KW - 24:Quaternary geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50176344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=European+Review&rft.atitle=Is+this+the+new+sociology+of+science%3F+An+editorial&rft.au=Burgen%2C+Arnold&rft.aulast=Burgen&rft.aufirst=Arnold&rft.date=2002-10-01&rft.volume=10&rft.issue=4&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=European+Review&rft.issn=10627987&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 10 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Asia; Differential Absorption Lidar method; Far East; instruments; laser methods; Lidar data; Luzon; measurement; Mount Pinatubo; nitrogen; ozone; Philippine Islands; Raman spectra; spectra; stratosphere; volcanic ash DO - http://dx.doi.org/10.1029/93GL00751 ER - TY - JOUR T1 - Impact cratering at geologic stage boundaries AN - 50176321; 1994-052215 AB - The largest known Cenozoic impact craters with the most accurately measured ages are found to correlate very closely with geologic stage boundaries. The level of confidence in this result is 98-99% even under the most pessimistic assumptions concerning dating errors. One or more large impacts may have led, in at least some cases, to the extinctions and first appearances of biotic species that mark many of the geologic stage boundaries. Copyright 1993 by the American Geophysical Union. JF - Geophysical Research Letters AU - Stothers, Richard B Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 887 EP - 890 PB - American Geophysical Union, Washington, DC VL - 20 IS - 10 SN - 0094-8276, 0094-8276 KW - lower Paleocene KW - lower Holocene KW - Cretaceous KW - Holocene KW - Upper Cretaceous KW - upper Pleistocene KW - Cenozoic KW - meteorites KW - dates KW - Paleocene KW - absolute age KW - stratigraphy KW - Ar/Ar KW - Quaternary KW - Paleogene KW - impacts KW - Mesozoic KW - Tertiary KW - K/Ar KW - craters KW - K-T boundary KW - Pleistocene KW - stratigraphic boundary KW - mass extinctions KW - 03:Geochronology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50176321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Impact+cratering+at+geologic+stage+boundaries&rft.au=Stothers%2C+Richard+B&rft.aulast=Stothers&rft.aufirst=Richard&rft.date=1993-05-01&rft.volume=20&rft.issue=10&rft.spage=887&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL00907 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - absolute age; Ar/Ar; Cenozoic; craters; Cretaceous; dates; Holocene; impacts; K-T boundary; K/Ar; lower Holocene; lower Paleocene; mass extinctions; Mesozoic; meteorites; Paleocene; Paleogene; Pleistocene; Quaternary; stratigraphic boundary; stratigraphy; Tertiary; Upper Cretaceous; upper Pleistocene DO - http://dx.doi.org/10.1029/93GL00907 ER - TY - JOUR T1 - Emissions of sulfur gases from marine and freshwater wetlands of the Florida Everglades; rates and extrapolation using remote sensing AN - 50175912; 1993-029264 AB - Rates of emissions of the biogenic sulfur (S) gases carbonyl sulfide (COS), methyl mercaptan (MSH), dimethyl sulfide (DMS), and carbon disulfide (CS (sub 2) ) were measured in a variety of marine and freshwater wetland habitats in the Florida Everglades during a short duration period in October using dynamic chambers, cryotrapping techniques, and gas chromatography. The most rapid emissions of >500 nmol m (super -2) h (super -1) occurred in red mangrove-dominated sites that were adjacent to open seawater and contained numerous crab burrows. Poorly drained red mangrove sites exhibited lower fluxes of approximately 60 nmol m (super -2) h (super -1) which were similar to fluxes from the black mangrove areas which dominated the marine-influenced wetland sites in the Everglades. DMS was the dominant organo-S gas emitted especially in the freshwater areas. Spectral data from a scene from the Landsat thematic mapper were used to map habitats in the Everglades. Six vegetation categories were delineated using geographical information system software and S gas emissions were extrapolated for the entire Everglades National Park. The black mangrove-dominated areas accounted for the largest portion of S gas emissions to the area. The large area extent of the saw grass communities (42%) accounted for approximately 24% of the total S emissions. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Hines, Mark E AU - Pelletier, Ramona E AU - Crill, Patrick M Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 8991 EP - 8999 PB - American Geophysical Union, Washington, DC VL - 98 IS - D5 SN - 0148-0227, 0148-0227 KW - United States KW - organic materials KW - Everglades KW - Monroe County Florida KW - atmosphere KW - fresh-water environment KW - vegetation KW - dimethyl sulfide KW - Florida KW - carbonyl sulfide KW - geochemical cycle KW - gases KW - carbon disulfide KW - southern Florida KW - organic compounds KW - biogenic processes KW - wetlands KW - marine environment KW - sulfur KW - methyl mercaptan KW - geochemistry KW - remote sensing KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50175912?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Emissions+of+sulfur+gases+from+marine+and+freshwater+wetlands+of+the+Florida+Everglades%3B+rates+and+extrapolation+using+remote+sensing&rft.au=Hines%2C+Mark+E%3BPelletier%2C+Ramona+E%3BCrill%2C+Patrick+M&rft.aulast=Hines&rft.aufirst=Mark&rft.date=1993-05-01&rft.volume=98&rft.issue=D5&rft.spage=8991&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JD03019 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 41 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; biogenic processes; carbon disulfide; carbonyl sulfide; dimethyl sulfide; Everglades; Florida; fresh-water environment; gases; geochemical cycle; geochemistry; marine environment; methyl mercaptan; Monroe County Florida; organic compounds; organic materials; remote sensing; southern Florida; sulfur; United States; vegetation; wetlands DO - http://dx.doi.org/10.1029/92JD03019 ER - TY - JOUR T1 - Correlations between water recycling and stable water isotope concentration AN - 50136281; 1995-043534 JF - Eos, Transactions, American Geophysical Union AU - Koster, R D AU - DeValpine, D P AU - Jouzel, J AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 178 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - Cenozoic KW - recycling KW - Quaternary KW - oxygen KW - isotopes KW - O-18 KW - interpretation KW - paleoclimatology KW - Holocene KW - stable isotopes KW - variations KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50136281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Correlations+between+water+recycling+and+stable+water+isotope+concentration&rft.au=Koster%2C+R+D%3BDeValpine%2C+D+P%3BJouzel%2C+J%3BAnonymous&rft.aulast=Koster&rft.aufirst=R&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=178&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Cenozoic; Holocene; interpretation; isotopes; O-18; oxygen; paleoclimatology; Quaternary; recycling; stable isotopes; variations ER - TY - JOUR T1 - Measurement of ground topography and vegetation height by laser altimetry AN - 50074547; 1996-015345 JF - Eos, Transactions, American Geophysical Union AU - Blair, J B AU - Harding, D J AU - Bufton, J L AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 194 EP - 195 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - high-resolution methods KW - laser methods KW - geophysical surveys KW - altimetry KW - vegetation KW - measurement KW - California KW - topography KW - Mount Humphrey KW - Arizona KW - Big Basin Redwood State Park KW - surveys KW - remote sensing KW - airborne methods KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50074547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Measurement+of+ground+topography+and+vegetation+height+by+laser+altimetry&rft.au=Blair%2C+J+B%3BHarding%2C+D+J%3BBufton%2C+J+L%3BAnonymous&rft.aulast=Blair&rft.aufirst=J&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - airborne methods; altimetry; Arizona; Big Basin Redwood State Park; California; geophysical surveys; high-resolution methods; laser methods; measurement; Mount Humphrey; remote sensing; surveys; topography; United States; vegetation ER - TY - JOUR T1 - Geodetic aircraft laser altimetry of a surging glacier; Skeidararjokull, Iceland AN - 50072294; 1996-015340 JF - Eos, Transactions, American Geophysical Union AU - Garvin, J B AU - Williams, R S, Jr AU - Bufton, J L AU - Harding, D J AU - Blair, J B AU - Krabill, W AU - Sigurdsson, O AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 194 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - ablation KW - Western Europe KW - laser methods KW - glaciers KW - Europe KW - altimetry KW - glacier surges KW - topography KW - mass balance KW - Iceland KW - Skeidararjokull KW - remote sensing KW - airborne methods KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50072294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Geodetic+aircraft+laser+altimetry+of+a+surging+glacier%3B+Skeidararjokull%2C+Iceland&rft.au=Garvin%2C+J+B%3BWilliams%2C+R+S%2C+Jr%3BBufton%2C+J+L%3BHarding%2C+D+J%3BBlair%2C+J+B%3BKrabill%2C+W%3BSigurdsson%2C+O%3BAnonymous&rft.aulast=Garvin&rft.aufirst=J&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - ablation; airborne methods; altimetry; Europe; glacier surges; glaciers; Iceland; laser methods; mass balance; remote sensing; Skeidararjokull; topography; Western Europe ER - TY - JOUR T1 - Scaling properties of topographic surfaces AN - 50071487; 1996-015341 JF - Eos, Transactions, American Geophysical Union AU - Weissel, J K AU - Pratson, L F AU - Malinverno, A AU - Harding, D J AU - Anonymous Y1 - 1993/05// PY - 1993 DA - May 1993 SP - 194 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - scale factor KW - Brownian surfaces KW - laser methods KW - landform evolution KW - data processing KW - altimetry KW - digital terrain models KW - relief KW - topography KW - Walnut Gulch watershed KW - mathematical methods KW - Arizona KW - fractals KW - remote sensing KW - airborne methods KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50071487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Scaling+properties+of+topographic+surfaces&rft.au=Weissel%2C+J+K%3BPratson%2C+L+F%3BMalinverno%2C+A%3BHarding%2C+D+J%3BAnonymous&rft.aulast=Weissel&rft.aufirst=J&rft.date=1993-05-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - airborne methods; altimetry; Arizona; Brownian surfaces; data processing; digital terrain models; fractals; landform evolution; laser methods; mathematical methods; relief; remote sensing; scale factor; topography; United States; Walnut Gulch watershed ER - TY - JOUR T1 - Long-wavelength magnetic anomaly associated with the Tornquist-Teisseyre Zone, Central Europe AN - 855194567; 2011-022727 JF - Eos, Transactions, American Geophysical Union AU - Taylor, Patrick T AU - Ravat, Dhananjay N AU - Frawley, James J AU - Anonymous Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 111 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - seismicity KW - Central Europe KW - magnetization KW - magnetic anomalies KW - Tornquist-Teisseyre Zone KW - paleomagnetism KW - mapping KW - Magsat KW - Europe KW - tectonics KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855194567?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Long-wavelength+magnetic+anomaly+associated+with+the+Tornquist-Teisseyre+Zone%2C+Central+Europe&rft.au=Taylor%2C+Patrick+T%3BRavat%2C+Dhananjay+N%3BFrawley%2C+James+J%3BAnonymous&rft.aulast=Taylor&rft.aufirst=Patrick&rft.date=1993-04-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=111&rft.isbn=&rft.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, 1993 spring 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 - Central Europe; Europe; magnetic anomalies; magnetization; Magsat; mapping; paleomagnetism; seismicity; tectonics; Tornquist-Teisseyre Zone ER - TY - JOUR T1 - Cytoskeleton-amyloplast interactions in sweet clover. AN - 76361920; 11537706 AB - The distribution of organelles within columella cells of sweet clover was examined by transmission electron microscopy following growth under static or clinorotating conditions. A developmentally conditioned polarity was observed, with a proximal location of the nucleus and a distal accumulation of the endoplasmic reticulum. This polarity was insensitive to clinorotation. In contrast, clinorotation altered the location of amyloplasts. Application of cytoskeletal poisons (colchicine, cytochalasin D, taxol, and phalloidin), especially during clinorotation, had interesting effects on the maintenance of columella cell polarity, with a profound effect on the extent, location, and structure of the endoplasmic reticulum. The site of cytoskeletal interactions with sedimenting amyloplasts is thought to be the amyloplast envelope. An envelope fraction, having over 17 polypeptides, was isolated using immobilized antibody technology, and will provide a means of assessing the role of specific peptides in cytoskeleton/amyloplast interactions. JF - Transactions of the Kansas Academy of Science. Kansas Academy of Science AU - Guikema, J A AU - Hilaire, E AU - Odom, W R AD - Division of Biology, Kansas State University, Manhattan 66506-4901, USA. Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 13 EP - 19 VL - 96 IS - 1-2 SN - 0022-8443, 0022-8443 KW - Peptides KW - 0 KW - Plant Proteins KW - Phalloidine KW - 17466-45-4 KW - Cytochalasin D KW - 22144-77-0 KW - Paclitaxel KW - P88XT4IS4D KW - Colchicine KW - SML2Y3J35T KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Cell Biology KW - NASA Discipline Developmental Biology KW - NASA Program NSCORT KW - Non-NASA Center KW - Plant Proteins -- analysis KW - Plant Cells KW - Peptides -- analysis KW - Herb-Drug Interactions KW - Paclitaxel -- pharmacology KW - Endoplasmic Reticulum -- ultrastructure KW - Plant Physiological Phenomena KW - Endoplasmic Reticulum -- chemistry KW - Gravitation KW - Colchicine -- pharmacology KW - Phalloidine -- pharmacology KW - Plant Proteins -- physiology KW - Cytochalasin D -- pharmacology KW - Microscopy, Electron KW - Rotation KW - Peptides -- physiology KW - Immunohistochemistry KW - Organelles -- metabolism KW - Cell Polarity -- physiology KW - Plants -- ultrastructure KW - Plastids -- physiology KW - Cytoskeleton -- ultrastructure KW - Cytoskeleton -- physiology KW - Cell Polarity -- drug effects KW - Plastids -- chemistry KW - Organelles -- physiology KW - Plastids -- ultrastructure KW - Organelles -- ultrastructure KW - Cytoskeleton -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76361920?accountid=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=Transactions+of+the+Kansas+Academy+of+Science.+Kansas+Academy+of+Science&rft.atitle=Cytoskeleton-amyloplast+interactions+in+sweet+clover.&rft.au=Guikema%2C+J+A%3BHilaire%2C+E%3BOdom%2C+W+R&rft.aulast=Guikema&rft.aufirst=J&rft.date=1993-04-01&rft.volume=96&rft.issue=1-2&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+Kansas+Academy+of+Science.+Kansas+Academy+of+Science&rft.issn=00228443&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-02-13 N1 - Date created - 1996-02-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A direct viable count method for the enumeration of attached bacteria and assessment of biofilm disinfection. AN - 76360913; 11537721 AB - This report describes the adaptation of an in situ direct viable count (in situ DVC) method in biofilm disinfection studies. The results obtained with this technique were compared to two other enumeration methods, the plate count (PC) and conventional direct viable count (c-DVC). An environmental isolate (Klebsiella pneumoniae Kp1) was used to form biofilms on stainless steel coupons in a stirred batch reactor. The in situ DVC method was applied to directly assess the viability of bacteria in biofilms without disturbing the integrity of the interfacial community. As additional advantages, the results were observed after 4 h instead of the 24 h incubation time required for colony formation and total cell numbers that remained on the substratum were enumerated. Chlorine and monochloramine were used to determine the susceptibilities of attached and planktonic bacteria to disinfection treatment using this novel analytical approach. The planktonic cells in the reactor showed no significant change in susceptibility to disinfectants during the period of biofilm formation. In addition, the attached cells did not reveal any more resistance to disinfection than planktonic cells. The disinfection studies of young biofilms indicated that 0.25 mg/l free chlorine (at pH 7.2) and 1 mg/l monochloramine (at pH 9.0) have comparable disinfection efficiencies at 25 degrees C. Although being a weaker disinfectant, monochloramine was more effective in removing attached bacteria from the substratum than free chlorine. The in situ DVC method always showed at least one log higher viable cell densities than the PC method, suggesting that the in situ DVC method is more efficient in the enumeration of biofilm bacteria. The results also indicated that the in situ DVC method can provide more accurate information regarding the cell numbers and viability of bacteria within biofilms following disinfection. JF - Journal of microbiological methods AU - Yu, F P AU - Pyle, B H AU - McFeters, G A AD - Department of Microbiology, Montana State University, Bozeman 59717. Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 167 EP - 180 VL - 17 IS - 3 SN - 0167-7012, 0167-7012 KW - Amines KW - 0 KW - Disinfectants KW - Chlorine KW - 4R7X1O2820 KW - Hypochlorous Acid KW - 712K4CDC10 KW - Space life sciences KW - NASA Discipline Number 04-10 KW - Non-NASA Center KW - NASA Discipline Environmental Health KW - Animals KW - Disinfection -- methods KW - Amines -- pharmacology KW - Hypochlorous Acid -- pharmacology KW - Colony Count, Microbial KW - Chlorine -- pharmacology KW - Plankton KW - Environmental Microbiology KW - Klebsiella pneumoniae -- drug effects KW - Klebsiella pneumoniae -- growth & development KW - Disinfectants -- pharmacology KW - Bacterial Adhesion -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76360913?accountid=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+microbiological+methods&rft.atitle=A+direct+viable+count+method+for+the+enumeration+of+attached+bacteria+and+assessment+of+biofilm+disinfection.&rft.au=Yu%2C+F+P%3BPyle%2C+B+H%3BMcFeters%2C+G+A&rft.aulast=Yu&rft.aufirst=F&rft.date=1993-04-01&rft.volume=17&rft.issue=3&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Journal+of+microbiological+methods&rft.issn=01677012&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-03-30 N1 - Date created - 1995-03-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Distribution of enteric bacteria in Antarctic seawater surrounding a sewage outfall. AN - 76360257; 11537610 AB - The spatial distribution and movement of the sewage plume from McMurdo Station, Antarctica, was investigated in the ocean under the early summer sea ice. Ocean currents were also examined to determine their effect on the movement of the plume. Samples of sea water were obtained via holes drilled through the ice and analyzed for coliform bacteria. Coliform densities in ice cores were also determined. Densities of coliform bacteria as high as 10(5)/100 ml were found along the c. 1 km shoreline of McMurdo Station and the plume extended 200-300 m seaward. The relocation of the outfall from a surface configuration to the subsurface (11 m deep) had little influence on the distribution of the plume that sometimes reached the seawater intake station, 400 m to the south. Ocean current measurements in the study area confirmed that, while the prevailing advection was to the north and away from the intake area, episodic reversals of flow at some current meter stations coincided with pulses of sewage that moved to the intake. These findings support the use of bacterial indicators as one means to map the distribution and movement of recent sewage contamination in cold (-1.8 degrees C) sea water and provide evidence that the disposal and movement of domestic wastes deserves attention in coastal [correction of costal] polar environments. JF - Water research AU - McFeters, G A AU - Barry, J P AU - Howington, J P AD - Department of Microbiology, Montana State University, Bozeman 59717. Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 645 EP - 650 VL - 27 IS - 4 SN - 0043-1354, 0043-1354 KW - Sewage KW - 0 KW - Space life sciences KW - Humans KW - Seasons KW - Antarctic Regions KW - Waste Management -- methods KW - Time Factors KW - Sewage -- analysis KW - Enterobacteriaceae -- isolation & purification KW - Seawater -- analysis KW - Water Microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76360257?accountid=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=Water+research&rft.atitle=Distribution+of+enteric+bacteria+in+Antarctic+seawater+surrounding+a+sewage+outfall.&rft.au=McFeters%2C+G+A%3BBarry%2C+J+P%3BHowington%2C+J+P&rft.aulast=McFeters&rft.aufirst=G&rft.date=1993-04-01&rft.volume=27&rft.issue=4&rft.spage=645&rft.isbn=&rft.btitle=&rft.title=Water+research&rft.issn=00431354&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-05-10 N1 - Date created - 1995-05-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Using a closed ecological system to study Earth's biosphere: initial results from Biosphere 2. AN - 76359753; 11537406 JF - Bioscience AU - Nelson, M AU - Burgess, T L AU - Alling, A AU - Alvarez-Romo, N AU - Dempster, W F AU - Walford, R L AU - Allen, J P AD - Institute of Ecotechnics, London, UK, and Space Biospheres Ventures (SBV), Oracle, AZ 85623. Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 225 EP - 236 VL - 43 IS - 4 SN - 0006-3568, 0006-3568 KW - Carbon Dioxide KW - 142M471B3J KW - Oxygen KW - S88TT14065 KW - Space life sciences KW - Environmental Monitoring KW - Waste Management KW - Humans KW - Crops, Agricultural KW - Earth (Planet) KW - Facility Design and Construction KW - Biomass KW - Research Design KW - Air -- analysis KW - Life Support Systems KW - Ecology KW - Carbon Dioxide -- analysis KW - Oxygen -- analysis KW - Ecological Systems, Closed UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76359753?accountid=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=Bioscience&rft.atitle=Using+a+closed+ecological+system+to+study+Earth%27s+biosphere%3A+initial+results+from+Biosphere+2.&rft.au=Nelson%2C+M%3BBurgess%2C+T+L%3BAlling%2C+A%3BAlvarez-Romo%2C+N%3BDempster%2C+W+F%3BWalford%2C+R+L%3BAllen%2C+J+P&rft.aulast=Nelson&rft.aufirst=M&rft.date=1993-04-01&rft.volume=43&rft.issue=4&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Bioscience&rft.issn=00063568&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-16 N1 - Date created - 1995-06-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Depth-dose equivalent relationship for cosmic rays at various solar minima. AN - 75684013; 8475259 AB - Galactic cosmic rays (GCR) pose a serious radiation hazard for long-duration missions. In designing a lunar habitat or a Mars transfer vehicle, the radiation exposure determines the shielding thickness, and hence the weight of spacecraft. In designing a habitat one has to focus on the worst-case radiation flux and its uncertainties. Using the spherically symmetric diffusion theory of the solar modulation of GCR, and data on the differential energy spectra of hydrogen, helium, oxygen, and iron from 1965 to 1989, it has been shown that the flux is determined by the diffusion parameter which is a function of the time in the solar cycle. This analysis also showed that the fluxes in the 1954 and 1976-1977 solar minima were similar and higher than those in 1965. In this paper, we have extended the spherical solar modulation theory back to 1954. These results show that the 1954-1955 GCR flux was nearly the same as that from 1976 to 1977 and that the 1965 flux values were nearly the same as those in 1986. Using this theory we have obtained the GCR spectra for all the nuclei and calculated the depth dose as a function of aluminum thickness. Using the ICRP 26 value for the quality factor, and the 1976-1977 spectra, it is shown that the shielding required to stay below 0.5 Sv is 17.5(-3)+8 g cm-2 of aluminum, and 9(-1.5)+5 g cm-2 to stay below 0.6 Sv. The calculated dose equivalent using the ICRP 60 values for quality factors is about 15% higher than that calculated using the ICRP 26 value. However, the errors on the quality factor itself may be substantial and are not taken into account. JF - Radiation research AU - Badhwar, G D AU - Cucinotta, F A AU - O'Neill, P M AD - NASA Johnson Space Center, Houston, Texas 77058. Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 9 EP - 15 VL - 134 IS - 1 SN - 0033-7587, 0033-7587 KW - Aluminum KW - CPD4NFA903 KW - Index Medicus KW - Space life sciences KW - NASA Discipline Radiation Health KW - NASA Center JSC KW - Humans KW - Radiation Protection KW - Cosmic Radiation KW - Space Flight KW - Extraterrestrial Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/75684013?accountid=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=Depth-dose+equivalent+relationship+for+cosmic+rays+at+various+solar+minima.&rft.au=Badhwar%2C+G+D%3BCucinotta%2C+F+A%3BO%27Neill%2C+P+M&rft.aulast=Badhwar&rft.aufirst=G&rft.date=1993-04-01&rft.volume=134&rft.issue=1&rft.spage=9&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 - 1993-05-20 N1 - Date created - 1993-05-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Aridity and large continental sedimentation dispersal patterns AN - 52843786; 1996-033945 JF - Abstracts, Annual Meeting - Association of American Geographers AU - Wilkinson, M Justin AU - Mohler, Robert R J AU - Tchakerian, Vatche AU - Wilbanks, Thomas J Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 253 PB - Association of American Geographers, Southeastern Division, Washington, DC VL - 89 SN - 0197-1700, 0197-1700 KW - dunes KW - terrestrial environment KW - India KW - Cenozoic KW - sedimentary rocks KW - neotectonics KW - Indian Peninsula KW - movement KW - tectonics KW - interpretation KW - Asia KW - soils KW - Kosi River KW - pedogenesis KW - chemically precipitated rocks KW - Quaternary KW - pattern recognition KW - northern India KW - arid environment KW - sedimentation KW - humid environment KW - drainage patterns KW - effects KW - rivers KW - evaporites KW - deposition KW - alluvial fans KW - fluvial features KW - Pleistocene KW - remote sensing KW - cones KW - 23:Geomorphology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52843786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Academy+of+Educational+Leadership+Journal&rft.atitle=BODY+ADORNMENT%3A+A+COMPARISON+OF+THE+ATTITUDES+OF+BUSINESSPEOPLE+AND+STUDENTS+IN+THREE+STATES&rft.au=Dale%2C+Larry+R%3BBevill%2C+Sandra%3BRoach%2C+Terry%3BGlasgow%2C+Susan%3BBracy%2C+Courtney&rft.aulast=Dale&rft.aufirst=Larry&rft.date=2009-01-01&rft.volume=13&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Academy+of+Educational+Leadership+Journal&rft.issn=10956328&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Association of American Geographers; 89th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alluvial fans; arid environment; Asia; Cenozoic; chemically precipitated rocks; cones; deposition; drainage patterns; dunes; effects; evaporites; fluvial features; humid environment; India; Indian Peninsula; interpretation; Kosi River; movement; neotectonics; northern India; pattern recognition; pedogenesis; Pleistocene; Quaternary; remote sensing; rivers; sedimentary rocks; sedimentation; soils; tectonics; terrestrial environment ER - TY - JOUR T1 - On the use of astrogeodynamical signals for climate change studies AN - 52702573; 1997-052839 JF - Eos, Transactions, American Geophysical Union AU - Liu, H S AU - Anonymous Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 48 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - obliquity of the ecliptic KW - glaciation KW - cyclic processes KW - data processing KW - precession KW - equations KW - deglaciation KW - orbital forcing KW - time factor KW - Milankovitch theory KW - glacial geology KW - climate forcing KW - climate KW - changes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52702573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=On+the+use+of+astrogeodynamical+signals+for+climate+change+studies&rft.au=Liu%2C+H+S%3BAnonymous&rft.aulast=Liu&rft.aufirst=H&rft.date=1993-04-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - changes; climate; climate forcing; cyclic processes; data processing; deglaciation; equations; glacial geology; glaciation; Milankovitch theory; obliquity of the ecliptic; orbital forcing; precession; time factor ER - TY - JOUR T1 - NASA's Mission to Planet Earth education program AN - 52700052; 1997-052884 JF - Eos, Transactions, American Geophysical Union AU - Lawless, J G AU - Asrar, G AU - Schwerin, T G AU - Anonymous Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 57 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - programs KW - NASA KW - government agencies KW - curricula KW - education KW - research KW - teacher education KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52700052?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=NASA%27s+Mission+to+Planet+Earth+education+program&rft.au=Lawless%2C+J+G%3BAsrar%2C+G%3BSchwerin%2C+T+G%3BAnonymous&rft.aulast=Lawless&rft.aufirst=J&rft.date=1993-04-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - curricula; education; government agencies; NASA; programs; research; teacher education ER - TY - JOUR T1 - Effects of various deep mantle conductivity profiles on steady core flow estimates and simultaneous solution for core field and flow AN - 52699958; 1997-052861 JF - Eos, Transactions, American Geophysical Union AU - Voorhies, C V AU - Nishihama, M AU - Anonymous Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 51 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - outer core KW - lower mantle KW - conductivity KW - oscillations KW - mathematical methods KW - mantle KW - mapping KW - inverse problem KW - core KW - core-mantle boundary KW - magnetic field KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52699958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Effects+of+various+deep+mantle+conductivity+profiles+on+steady+core+flow+estimates+and+simultaneous+solution+for+core+field+and+flow&rft.au=Voorhies%2C+C+V%3BNishihama%2C+M%3BAnonymous&rft.aulast=Voorhies&rft.aufirst=C&rft.date=1993-04-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - conductivity; core; core-mantle boundary; inverse problem; lower mantle; magnetic field; mantle; mapping; mathematical methods; oscillations; outer core ER - TY - JOUR T1 - Ocean heat transports and carbon dioxide; the Earth's past and future global warming AN - 52698743; 1997-052850 JF - Eos, Transactions, American Geophysical Union AU - Chandler, M A AU - Anonymous Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 49 EP - 50 PB - American Geophysical Union, Washington, DC VL - 74 IS - 16, Suppl. SN - 0096-3941, 0096-3941 KW - general circulation models KW - ocean circulation KW - Eocene KW - paleo-oceanography KW - global change KW - Paleogene KW - paleoclimatology KW - Mesozoic KW - carbon dioxide KW - Cenozoic KW - Tertiary KW - North Atlantic Deep Water KW - Neogene KW - heat flow KW - Pliocene KW - climate forcing KW - climate KW - global warming KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52698743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Ocean+heat+transports+and+carbon+dioxide%3B+the+Earth%27s+past+and+future+global+warming&rft.au=Chandler%2C+M+A%3BAnonymous&rft.aulast=Chandler&rft.aufirst=M&rft.date=1993-04-01&rft.volume=74&rft.issue=16%2C+Suppl.&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1993 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - carbon dioxide; Cenozoic; climate; climate forcing; Eocene; general circulation models; global change; global warming; heat flow; Mesozoic; Neogene; North Atlantic Deep Water; ocean circulation; paleo-oceanography; paleoclimatology; Paleogene; Pliocene; Tertiary ER - TY - JOUR T1 - Ferric iron in primitive asteroids; a 0.43-mu m absorption feature AN - 51800207; 2004-073910 JF - Icarus (Online) AU - Vilas, Faith AU - Hatch, Erin C AU - Larson, Stephen M AU - Sawyer, Scott R AU - Gaffey, Michael J Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 225 EP - 231 PB - Elsevier VL - 102 IS - 2 SN - 1090-2643, 1090-2643 KW - near-infrared spectra KW - alteration KW - C-type asteroids KW - asteroids KW - iron KW - ferric iron KW - mineral composition KW - metals KW - ultraviolet spectra KW - S-type asteroids KW - G-type asteroids KW - spectra KW - P-type asteroids KW - D-type asteroids KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51800207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus+%28Online%29&rft.atitle=Ferric+iron+in+primitive+asteroids%3B+a+0.43-mu+m+absorption+feature&rft.au=Vilas%2C+Faith%3BHatch%2C+Erin+C%3BLarson%2C+Stephen+M%3BSawyer%2C+Scott+R%3BGaffey%2C+Michael+J&rft.aulast=Vilas&rft.aufirst=Faith&rft.date=1993-04-01&rft.volume=102&rft.issue=2&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=Icarus+%28Online%29&rft.issn=10902643&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alteration; asteroids; C-type asteroids; D-type asteroids; ferric iron; G-type asteroids; iron; metals; mineral composition; near-infrared spectra; P-type asteroids; S-type asteroids; spectra; ultraviolet spectra ER - TY - JOUR T1 - Time-distance helioseismology AN - 50373924; 1993-008731 JF - Nature (London) AU - Duvall, T L, Jr AU - Jefferies, S M AU - Harvey, J W AU - Pomerantz, M A Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 430 EP - 432 PB - Macmillan Journals, London VL - 362 IS - 6419 SN - 0028-0836, 0028-0836 KW - solar interior KW - seismology KW - oscillations KW - crosscorrelation KW - Sun KW - helioseismology KW - statistical analysis KW - acoustical waves KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50373924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Time-distance+helioseismology&rft.au=Duvall%2C+T+L%2C+Jr%3BJefferies%2C+S+M%3BHarvey%2C+J+W%3BPomerantz%2C+M+A&rft.aulast=Duvall&rft.aufirst=T&rft.date=1993-04-01&rft.volume=362&rft.issue=6419&rft.spage=430&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 - 1993-01-01 N1 - Number of references - 17 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - acoustical waves; crosscorrelation; helioseismology; oscillations; seismology; solar interior; statistical analysis; Sun ER - TY - JOUR T1 - Terminology for trace-element partitioning AN - 50360384; 1993-010428 AB - In this Scientific Comment, a self-consistent terminology includes: partition coefficients (D), for ratios of the concentration of a component in two phases; exchange coefficients (K (sub p) ) for ratios of partition coefficients. The prefix 'bulk' implies that these coefficients are weighted according to the proportions of coexisting phases. Bulk partition and bulk exchange coefficients are denoted by D (super -) and K (super -) (sub D) respectively. JF - Geochimica et Cosmochimica Acta AU - Beattie, Paul AU - Drake, Michael AU - Jones, John AU - Leeman, William AU - Longhi, John AU - McKay, Gordon AU - Nielsen, Roger AU - Palme, Herbert AU - Shaw, Denis AU - Takahashi, Eiichi AU - Watson, Bruce Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 1605 EP - 1606 PB - Pergamon, Oxford VL - 57 IS - 7 SN - 0016-7037, 0016-7037 KW - partitioning KW - nomenclature KW - partition coefficients KW - bulk partition KW - trace elements KW - bulk exchange KW - exchange coefficients KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50360384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Terminology+for+trace-element+partitioning&rft.au=Beattie%2C+Paul%3BDrake%2C+Michael%3BJones%2C+John%3BLeeman%2C+William%3BLonghi%2C+John%3BMcKay%2C+Gordon%3BNielsen%2C+Roger%3BPalme%2C+Herbert%3BShaw%2C+Denis%3BTakahashi%2C+Eiichi%3BWatson%2C+Bruce&rft.aulast=Beattie&rft.aufirst=Paul&rft.date=1993-04-01&rft.volume=57&rft.issue=7&rft.spage=1605&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990015-O 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 - 1993-01-01 N1 - Number of references - 9 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bulk exchange; bulk partition; exchange coefficients; nomenclature; partition coefficients; partitioning; trace elements DO - http://dx.doi.org/10.1016/0016-7037(93)90015-O ER - TY - JOUR T1 - Carbon abundance and silicate mineralogy of anhydrous interplanetary dust particles AN - 50359455; 1993-010425 AB - The bulk composition of 19 anhydrous IDPs, including C and O, analysed by EDX, are presented. The particles are mineralogically heterogeneous at the submicron scale. The pyroxene-dominated IDPs have higher C abundances than the olivine-dominated particles. C in the pyroxene-dominant IDPs is not chondritic, with C abundance > 3 x CI (C-rich meteorites) The C abundance in olivine-dominant particles is chondritic (< 3 x CI). Anhydrous particles with non- chondritic C abundances have primitive mineralogy and bulk compositions with similarity to cometary dust particles. JF - Geochimica et Cosmochimica Acta AU - Thomas, Kathie L AU - Blanford, George E AU - Keller, Lindsay P AU - Kloeck, Wolfgang AU - McKay, David S Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 1551 EP - 1566 PB - Pergamon, Oxford VL - 57 IS - 7 SN - 0016-7037, 0016-7037 KW - silicates KW - nesosilicates KW - pyroxene group KW - carbon KW - orthosilicates KW - olivine group KW - interplanetary dust KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50359455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Carbon+abundance+and+silicate+mineralogy+of+anhydrous+interplanetary+dust+particles&rft.au=Thomas%2C+Kathie+L%3BBlanford%2C+George+E%3BKeller%2C+Lindsay+P%3BKloeck%2C+Wolfgang%3BMcKay%2C+David+S&rft.aulast=Thomas&rft.aufirst=Kathie&rft.date=1993-04-01&rft.volume=57&rft.issue=7&rft.spage=1551&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990012-L 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 - 1993-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - carbon; chain silicates; interplanetary dust; nesosilicates; olivine group; orthosilicates; pyroxene group; silicates DO - http://dx.doi.org/10.1016/0016-7037(93)90012-L ER - TY - JOUR T1 - Hotspots and sunspots; surface tracers of deep mantle convection in the Earth and Sun AN - 50359324; 1993-010348 AB - The pattern of new appearances of hotspots on the Earth is investigated using available age data. The worldwide total of Cenozoic and Mesozoic hotspots, predicted by extrapolation from the observed number of continental flood basalts, is approximately 40, in agreement with Crough's counts. There are found to be no true antipodal pairs. In one interpretation of the data, new appearances of hotspots occur first at high latitudes in both hemispheres and then migrate toward the equator; shortly before the migration cycle is finished, the next cycle begins. A relative deficiency of hotspots, however, is observed in very low equatorial and very high polar regions. In addition, hotspots occupy two large hemispherical groups in longitude that slowly drift in the same direction as the axial body rotation. An observed magnetic superchron seems to end when a new hotspot migration cycle in latitude begins; but consecutive superchrons show opposite polarity. Although the hotspot data are rather sparse, their suggested patterns resemble the well-known patterns of complexes of active regions on the Sun, as exemplified by proxy data, such as sunspots. Both the Earth and the Sun possess large convecting, rotating and magnetized mantles, in which the characteristic surface tracers are believed to reflect the patterns of convective phenomena very deep in the mantle (even though the tracers themselves--hotspots and sunspots--are certainly not analogs of each other). The present study supports existing theoretical ideas that the large-scale patterns of deep mantle convection in the Earth and Sun may fundamentally resemble each other, despite the enormous difference in their molecular viscosities. Magnetic polarity reversal histories also show close similarities in the two bodies, suggesting the operation of basically similar convective dynamos. However, the Sun has displayed no known analog of the Earth's magnetically disturbed intervals. JF - Earth and Planetary Science Letters AU - Stothers, Richard B Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 1 EP - 8 PB - Elsevier, Amsterdam VL - 116 IS - 1-4 SN - 0012-821X, 0012-821X KW - hot spots KW - sunspots KW - Earth KW - dynamos KW - mantle KW - paleomagnetism KW - convection KW - magnetic field KW - spatial distribution KW - plate tectonics KW - reversals KW - Sun KW - 18:Solid-earth geophysics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50359324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Hotspots+and+sunspots%3B+surface+tracers+of+deep+mantle+convection+in+the+Earth+and+Sun&rft.au=Stothers%2C+Richard+B&rft.aulast=Stothers&rft.aufirst=Richard&rft.date=1993-04-01&rft.volume=116&rft.issue=1-4&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2F0012-821X%2893%2990041-7 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 - 1993-01-01 N1 - Number of references - 48 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - convection; dynamos; Earth; hot spots; magnetic field; mantle; paleomagnetism; plate tectonics; reversals; spatial distribution; Sun; sunspots DO - http://dx.doi.org/10.1016/0012-821X(93)90041-7 ER - TY - JOUR T1 - Spectral differentiation of surface soils and soil properties; is it possible from space platforms? AN - 50333253; 1993-024827 JF - Soil Science AU - Coleman, T L AU - Agbu, P A AU - Montgomery, O L Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 283 EP - 293 PB - Williams & Wilkins Company, Baltimore, MD VL - 155 IS - 4 SN - 0038-075X, 0038-075X KW - United States KW - clay KW - thematic mapper KW - iron oxides KW - Ultisols KW - mapping KW - Alabama KW - sediments KW - oxides KW - applications KW - soils KW - organic materials KW - Paleudults KW - northern Alabama KW - discriminant analysis KW - clastic sediments KW - Madison County Alabama KW - grain size KW - statistical analysis KW - surface textures KW - correlation KW - properties KW - satellite methods KW - organic compounds KW - Landsat KW - Inceptisols KW - classification KW - Dystrochrepts KW - regression analysis KW - remote sensing KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50333253?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science&rft.atitle=Spectral+differentiation+of+surface+soils+and+soil+properties%3B+is+it+possible+from+space+platforms%3F&rft.au=Coleman%2C+T+L%3BAgbu%2C+P+A%3BMontgomery%2C+O+L&rft.aulast=Coleman&rft.aufirst=T&rft.date=1993-04-01&rft.volume=155&rft.issue=4&rft.spage=283&rft.isbn=&rft.btitle=&rft.title=Soil+Science&rft.issn=0038075X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 44 N1 - PubXState - MD N1 - Document feature - illus. incl. 7 tables N1 - SuppNotes - Agricultural Experiment Station, Alabama Center for the Application of Remote Sensing (ACARS), Journal No. 209T N1 - Last updated - 2012-06-07 N1 - CODEN - SOSCAK N1 - SubjectsTermNotLitGenreText - Alabama; applications; classification; clastic sediments; clay; correlation; discriminant analysis; Dystrochrepts; grain size; Inceptisols; iron oxides; Landsat; Madison County Alabama; mapping; northern Alabama; organic compounds; organic materials; oxides; Paleudults; properties; regression analysis; remote sensing; satellite methods; sediments; soils; statistical analysis; surface textures; thematic mapper; Ultisols; United States ER - TY - JOUR T1 - Temporal variations of the Earth's gravitational field from satellite laser ranging to Lageos AN - 50174553; 1994-052189 AB - We have estimated monthly values of the J (sub 2) and J (sub 3) Earth gravitational coefficients using LAGEOS satellite laser ranging (SLR) data collected between 1980 and 1989. For the same time period, we have also computed corresponding estimates of the variations in these coefficients caused by atmospheric mass redistribution using surface atmospheric pressure estimates from the European Center for Medium Range Weather Forecasts (ECMWF). These data were processed both with and without a correction for the "inverted barometer effect," the ocean's isostatic response to atmospheric loading. While the estimated zonal harmonics in the orbit analysis accommodate gravitational changes at a reduced level arising from all other higher degree zonal effects, the LAGEOS and atmospheric time series for J (sub 2) compare quite well and it appears that the non-secular variation in J (sub 2) can be largely attributed to the redistribution of the atmospheric mass. While the observed changes in the "effective" J (sub 3) parameters are not well predicted by the third degree zonal harmonic changes in the atmosphere, both odd zonal time series display strong seasonality. The LAGEOS J (sub 3) estimates are very sensitive to as yet unmodeled forces acting on the satellite and these effects must be better understood before determining the dominant geophysical signals contributing to the estimate of this time series. Copyright 1993 by the American Geophysical Union. JF - Geophysical Research Letters AU - Nerem, R S AU - Chao, B F Y1 - 1993/04// PY - 1993 DA - April 1993 SP - 595 EP - 598 PB - American Geophysical Union, Washington, DC VL - 20 IS - 7 SN - 0094-8276, 0094-8276 KW - gravity field KW - monthly variations KW - Earth KW - pressure KW - laser methods KW - atmospheric pressure KW - laser ranging KW - Lageos KW - orbital observations KW - satellite methods KW - remote sensing KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50174553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Temporal+variations+of+the+Earth%27s+gravitational+field+from+satellite+laser+ranging+to+Lageos&rft.au=Nerem%2C+R+S%3BChao%2C+B+F&rft.aulast=Nerem&rft.aufirst=R&rft.date=1993-04-01&rft.volume=20&rft.issue=7&rft.spage=595&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F93GL00169 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 18 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - atmospheric pressure; Earth; gravity field; Lageos; laser methods; laser ranging; monthly variations; orbital observations; pressure; remote sensing; satellite methods DO - http://dx.doi.org/10.1029/93GL00169 ER - TY - JOUR T1 - Adaptative responses of tobacco callus cells to simulated microgravity by compensation. AN - 76371591; 11541195 AB - Under the rotation-induced gravity compensation, growth rate of callus was repressed by about 44%. Its osmotic and water potential declined by about 22 and 27% respectively. The content of soluble sugar was enhanced by about 123% and that of K+ by about 25%. The permeability of plasmic membrane increased and the lipid peroxidation intensified. When the callus grown under clinostatting were subcultured and returned to stationary conditions, the growth rates and related physiological indications were restored again to or near to the level of the control (SC). Electron microscopic studies showed that nuclear membrane was invaginated so deeply that some of the nuclei were like a starfish. Rough endoplasmic reticulum was diminished. The smooth one observed on the surface of slices was lengthened by almost 8.9 times of the control (SC), the longest one reached to 42 micrometers. They were often concentrated in a corner of the cell. Some of them were rolled into tube-shapes. The amyloplasts were without starch grain. It is assumed that the responses of plant cell to microgravity may be a sort of tolerable unloading reaction on endomembrane system. JF - Microgravity quarterly : MGQ AU - Liu, C X AU - Wang, J Y AU - Wu, D S AU - Tang, Z C AD - Shanghai Institute of Plant Physiology, Academia Sinica, People's Republic of China. Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 17 EP - 21 VL - 3 IS - 1 SN - 0958-5036, 0958-5036 KW - Carbohydrates KW - 0 KW - Potassium KW - RWP5GA015D KW - Space life sciences KW - Gravitation KW - Culture Techniques KW - Potassium -- pharmacokinetics KW - Carbohydrates -- pharmacokinetics KW - Microscopy, Electron KW - Cell Membrane Permeability KW - Adaptation, Physiological KW - Endoplasmic Reticulum -- ultrastructure KW - Potassium -- metabolism KW - Carbohydrate Metabolism KW - Tobacco -- ultrastructure KW - Plants, Toxic KW - Tobacco -- growth & development KW - Weightlessness Simulation KW - Tobacco -- metabolism KW - Tobacco -- cytology KW - Rotation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76371591?accountid=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=Microgravity+quarterly+%3A+MGQ&rft.atitle=Adaptative+responses+of+tobacco+callus+cells+to+simulated+microgravity+by+compensation.&rft.au=Liu%2C+C+X%3BWang%2C+J+Y%3BWu%2C+D+S%3BTang%2C+Z+C&rft.aulast=Liu&rft.aufirst=C&rft.date=1993-03-01&rft.volume=3&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Microgravity+quarterly+%3A+MGQ&rft.issn=09585036&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-11-29 N1 - Date created - 1998-11-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Determining health risks associated with disinfectants and disinfection by-products: research needs. AN - 76362849; 11538065 AB - In order to minimize the levels of potentially toxic disinfectants and disinfection by-products in treated water while maintaining adequate protection against microbiological contamination, the total risks associated with disinfection have to be measured and compared with the risks from microbial agents. Because much work has already been carried out on chlorination and its by-products, it is recommended that research focus on major disinfection alternatives, i.e., ozonation, chloramination, carbon dioxidation, and the most practical combinations of these options. The primary research needs are (1) assessment of the relative toxicological hazards of the disinfectants and their by-products and (2) development of biologically based models for the dose-response relationships of these chemicals. JF - Journal - American Water Works Association AU - Glaze, W H AU - Andelman, J B AU - Bull, R J AU - Conolly, R B AU - Hertz, C D AU - Hood, R D AU - Pegram, R A AD - Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill 27599-7400, USA. Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 53 EP - 56 VL - 85 IS - 3 SN - 0003-150X, 0003-150X KW - Disinfectants KW - 0 KW - Space life sciences KW - Animals KW - Environmental Health KW - Disinfection -- methods KW - Humans KW - Disinfection -- standards KW - Research KW - Risk Assessment KW - Water Supply -- analysis KW - Dose-Response Relationship, Drug KW - Disinfectants -- chemistry KW - Disinfectants -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76362849?accountid=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+-+American+Water+Works+Association&rft.atitle=Determining+health+risks+associated+with+disinfectants+and+disinfection+by-products%3A+research+needs.&rft.au=Glaze%2C+W+H%3BAndelman%2C+J+B%3BBull%2C+R+J%3BConolly%2C+R+B%3BHertz%2C+C+D%3BHood%2C+R+D%3BPegram%2C+R+A&rft.aulast=Glaze&rft.aufirst=W&rft.date=1993-03-01&rft.volume=85&rft.issue=3&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Journal+-+American+Water+Works+Association&rft.issn=0003150X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-10-12 N1 - Date created - 1995-10-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Incorporating biologically based models into assessments of risk from chemical contaminants. AN - 76361769; 11538064 AB - The general approach to assessment of risk from chemical contaminants in drinking water involves three steps: hazard identification, exposure assessment, and dose-response assessment. Traditionally, the risks to humans associated with different levels of a chemical have been derived from the toxic responses observed in animals. It is becoming increasingly clear, however, that further information is needed if risks to humans are to be assessed accurately. Biologically based models help clarify the dose-response relationship and reduce uncertainty. JF - Journal - American Water Works Association AU - Bull, R J AU - Conolly, R B AU - De Marini, D M AU - MacPhail, R C AU - Ohanian, E V AU - Swenberg, J A AD - College of Pharmacy, Washington State University, Pullman 99163. Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 49 EP - 52 VL - 85 IS - 3 SN - 0003-150X, 0003-150X KW - Water Pollutants, Chemical KW - 0 KW - Space life sciences KW - NASA Program Environmental Health KW - NASA Discipline Number 04-10 KW - Non-NASA Center KW - NASA Discipline Environmental Health KW - United States KW - Rats KW - Animals KW - United States Environmental Protection Agency KW - Maximum Allowable Concentration KW - Humans KW - Environmental Health -- standards KW - Toxicology -- methods KW - Water Supply -- analysis KW - Water Supply -- standards KW - Water Pollutants, Chemical -- analysis KW - Dose-Response Relationship, Drug KW - Water Pollutants, Chemical -- toxicity KW - Models, Biological KW - Water Pollutants, Chemical -- standards KW - Risk Assessment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76361769?accountid=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+-+American+Water+Works+Association&rft.atitle=Incorporating+biologically+based+models+into+assessments+of+risk+from+chemical+contaminants.&rft.au=Bull%2C+R+J%3BConolly%2C+R+B%3BDe+Marini%2C+D+M%3BMacPhail%2C+R+C%3BOhanian%2C+E+V%3BSwenberg%2C+J+A&rft.aulast=Bull&rft.aufirst=R&rft.date=1993-03-01&rft.volume=85&rft.issue=3&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Journal+-+American+Water+Works+Association&rft.issn=0003150X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-16 N1 - Date created - 1995-06-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - An experimental study of trace element partitioning between olivine, orthopyroxene and melt in chondrules; equilibrium values and kinetic effects AN - 50373291; 1993-005906 AB - The concentrations of 32 elements (major, minor, REE, Ba, Hf, Sc, V, Co, Ni, Sr, Y, Zr, Nb, Ge, Th and U) were measured using an ion microprobe in olivine and orthopyroxene, and in coexisting glass in the run products produced in isothermal and dynamic crystallization experiments on chemical compositions that produce porphyritic olivine, radial pyroxene and barred olivine textures. Cooling rates in the dynamic crystallization experiments ranged from 1 degrees C/h to 2191 degrees C/h. The mineral/melt partition coefficients (D) calculated from the measured concentrations for both olivine and orthopyroxene showed very little change between equilibrium experiments and dynamic experiments with cooling rates of up to 100 degrees C/h. The data appear to define reliable equilibrium D values. Olivine D's range from 2X10 (super -5) for U to approximately 10 for Ni, and orthopyroxene D's range from 2X10 (super -5) for U to approximately 8 for Mg. There are regular relationships between the ionic radius, the valence of the trace element and the partition coefficients in olivine and orthopyroxene in all experiments. While there are some differences in the D values between olivine and orthopyroxene, they follow very similar trends. For experiments at high cooling rates there is an increase in the measured concentrations for incompatible trace elements in the crystals which yields apparent partition coefficients greater by up to 3 orders of magnitude from the equilibrium values obtained for isothermal equilibrium and slow cooling experiments. In contrast, compatible trace element D values are only slightly sensitive to cooling rate, typically varying by less than a factor of 2. SEM studies showed that melt inclusions were common in orthopyroxenes. It is shown that the increase in apparent D values for pyroxene observed with high cooling rates can be quantitatively explained by trapping of melt inclusions in crystals with equilibrium D values. Incorporation of melt inclusions may also quantitatively explain the increases in apparent D values in olivine at high cooling rates. However, no inclusions of melt were identified in olivine, even at the fastest cooling rate. If the high apparent D values obtained for olivine at high cooling rates were due to incorporation of trace elements in the lattice and not due to entrapment of melt, it would require incorporation of elements independent of valence and ionic radius. JF - Earth and Planetary Science Letters AU - Kennedy, A K AU - Lofgren, G E AU - Wasserburg, G J Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 177 EP - 195 PB - Elsevier, Amsterdam VL - 115 IS - 1-4 SN - 0012-821X, 0012-821X KW - silicates KW - experimental studies KW - olivine group KW - TEM data KW - nesosilicates KW - partitioning KW - meteorites KW - pyroxene group KW - chondrules KW - olivine KW - orthosilicates KW - orthopyroxene KW - trace elements KW - SEM data KW - chemical fractionation KW - chain silicates KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50373291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+African+History&rft.atitle=BRITISH+COLONIAL+POLICY%2C+LOCAL+POLITICS%2C+AND+THE+ORIGINS+OF+THE+MAURITIAN+WELFARE+STATE%2C+1936-50*&rft.au=SEEKINGS%2C+JEREMY&rft.aulast=SEEKINGS&rft.aufirst=JEREMY&rft.date=2011-07-01&rft.volume=52&rft.issue=2&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Journal+of+African+History&rft.issn=00218537&rft_id=info:doi/10.1017%2FS0021853711000247 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 - 1993-01-01 N1 - Number of references - 41 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - chain silicates; chemical fractionation; chondrules; experimental studies; meteorites; nesosilicates; olivine; olivine group; orthopyroxene; orthosilicates; partitioning; pyroxene group; SEM data; silicates; TEM data; trace elements DO - http://dx.doi.org/10.1016/0012-821X(93)90221-T ER - TY - JOUR T1 - Composition of metal in aubrites; constraints on core formation AN - 50372017; 1993-006699 AB - The nature and occurrence of metal in aubrites (enstatite achondrites) are summarized, with analyses for major and minor elements in 215 metal grains and 8 different aubrites; Fe,Ni grains vary in texture from irregular mu m particles to rounded nodules <= 1.5 cm across. The results suggest that metal segregation was extensive in the early magmatic evolution of the aubrite parent, but the lack of much fractionation in the trace element signature of the metal suggests that the metal did not undergo fractional crystallization in a core. The metal nodules perhaps represent part of the Fe-Ni that, during partial melting, was not entirely separated from the silicates. JF - Geochimica et Cosmochimica Acta AU - Casanova, Ignacio AU - Keil, Klaus AU - Newsom, Horton E Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 675 EP - 682 PB - Pergamon, Oxford VL - 57 IS - 3 SN - 0016-7037, 0016-7037 KW - silicates KW - meteorites KW - chladnite KW - stony meteorites KW - iron minerals KW - metals KW - partial melting KW - aubrite KW - core KW - siderophile elements KW - achondrites KW - 05B:Petrology of meteorites and tektites KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50372017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Composition+of+metal+in+aubrites%3B+constraints+on+core+formation&rft.au=Casanova%2C+Ignacio%3BKeil%2C+Klaus%3BNewsom%2C+Horton+E&rft.aulast=Casanova&rft.aufirst=Ignacio&rft.date=1993-03-01&rft.volume=57&rft.issue=3&rft.spage=675&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990377-9 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 - 1993-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - achondrites; aubrite; chladnite; core; iron minerals; metals; meteorites; partial melting; siderophile elements; silicates; stony meteorites DO - http://dx.doi.org/10.1016/0016-7037(93)90377-9 ER - TY - JOUR T1 - Proterozoic carbon cycle; discussion and reply AN - 50369741; 1993-004513 JF - Nature (London) AU - Schidlowski, Manfred AU - Des Marais, David J AU - Strauss, Harald AU - Summons, Roger E AU - Hayes, J M Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 117 EP - 118 PB - Macmillan Journals, London VL - 362 IS - 6416 SN - 0028-0836, 0028-0836 KW - organic materials KW - upper Precambrian KW - Precambrian KW - isotopes KW - C-13/C-12 KW - Proterozoic KW - stable isotopes KW - geochemical cycle KW - organic compounds KW - sedimentary rocks KW - carbon KW - organic carbon KW - geochemistry KW - fractionation KW - 12:Stratigraphy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50369741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Proterozoic+carbon+cycle%3B+discussion+and+reply&rft.au=Schidlowski%2C+Manfred%3BDes+Marais%2C+David+J%3BStrauss%2C+Harald%3BSummons%2C+Roger+E%3BHayes%2C+J+M&rft.aulast=Schidlowski&rft.aufirst=Manfred&rft.date=1993-03-01&rft.volume=362&rft.issue=6416&rft.spage=117&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 - 1993-01-01 N1 - Number of references - 7 N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Des Marais, D. J., et al., Nature, Vol. 359, p. 605, 1992 N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; fractionation; geochemical cycle; geochemistry; isotopes; organic carbon; organic compounds; organic materials; Precambrian; Proterozoic; sedimentary rocks; stable isotopes; upper Precambrian ER - TY - JOUR T1 - Radiative climate forcing by the Mount Pinatubo eruption AN - 50368509; 1993-005360 JF - Science AU - Minnis, P AU - Harrison, E F AU - Stowe, L L AU - Gibson, G G AU - Denn, F M AU - Doelling, D R AU - Smith, W L, Jr Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 1411 EP - 1415 PB - American Association for the Advancement of Science, Washington, DC VL - 259 IS - 5100 SN - 0036-8075, 0036-8075 KW - albedo KW - Luzon KW - Far East KW - geologic hazards KW - atmosphere KW - explosive eruptions KW - solar energy KW - volcanic features KW - Mount Pinatubo KW - Philippine Islands KW - eruptions KW - cooling KW - climate effects KW - volcanoes KW - aerosols KW - Asia KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50368509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Radiative+climate+forcing+by+the+Mount+Pinatubo+eruption&rft.au=Minnis%2C+P%3BHarrison%2C+E+F%3BStowe%2C+L+L%3BGibson%2C+G+G%3BDenn%2C+F+M%3BDoelling%2C+D+R%3BSmith%2C+W+L%2C+Jr&rft.aulast=Minnis&rft.aufirst=P&rft.date=1993-03-01&rft.volume=259&rft.issue=5100&rft.spage=1411&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - aerosols; albedo; Asia; atmosphere; climate effects; cooling; eruptions; explosive eruptions; Far East; geologic hazards; Luzon; Mount Pinatubo; Philippine Islands; remote sensing; solar energy; volcanic features; volcanoes ER - TY - JOUR T1 - Meteoritical Society citation for J. Paul Barringer and the Barringer Crater Company AN - 50251987; 1994-028597 JF - Meteoritics AU - French, Bevan M Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 7 EP - 8 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 1 SN - 0026-1114, 0026-1114 KW - meteorites KW - Barringer, J. Paul KW - awards KW - research KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50251987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Meteoritical+Society+citation+for+J.+Paul+Barringer+and+the+Barringer+Crater+Company&rft.au=French%2C+Bevan+M&rft.aulast=French&rft.aufirst=Bevan&rft.date=1993-03-01&rft.volume=28&rft.issue=1&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - awards; Barringer, J. Paul; meteorites; research ER - TY - JOUR T1 - Preterrestrial aqueous alteration of the Lafayette (SNC) meteorite AN - 50250139; 1994-028602 AB - The Lafayette meteorite contains hydrous alteration materials that occur as intergranular films and as veinlets and patches replacing olivine, pyroxene and high-Si glass. SEM and TEM studies show that the alteration materials consist of ferroan smectite clays, magnetite (or maghemite) and ferrihydrite. Three types of veinlets are present and formed in the order: coarse phyllosilicate, fine- grained phyllosilicate/oxide, and porous oxide. Bulk compositions of the veinlets are consistent with the observed mineralogy and are approximated by olivine + high-Si glass + water. The alteration materials are preterrestrial and probably formed at < 100 degrees C. The oxidation potential for the water was close to the magnetite-hematite buffer, and the solutions were probably saline. Mass transfer and chemical transport within Lafayette at the timeof formation were limited. The presence of alteration materials only on some grain boundaries and cracks indicate that the region was not soaked in fluid. These inferences suggest that alteration took place during episodic infiltrations of small volumes of saline water. JF - Meteoritics AU - Treiman, Allan H AU - Barrett, Ruth A AU - Gooding, James L Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 86 EP - 97 PB - Arizona State University, Center for Meteorite Studies, Tempe, AZ VL - 28 IS - 1 SN - 0026-1114, 0026-1114 KW - SNC Meteorites KW - meteorites KW - Antarctica KW - stony meteorites KW - Martian meteorites KW - Lafayette Meteorite KW - petrography KW - chemical composition KW - achondrites KW - TEM data KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50250139?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Preterrestrial+aqueous+alteration+of+the+Lafayette+%28SNC%29+meteorite&rft.au=Treiman%2C+Allan+H%3BBarrett%2C+Ruth+A%3BGooding%2C+James+L&rft.aulast=Treiman&rft.aufirst=Allan&rft.date=1993-03-01&rft.volume=28&rft.issue=1&rft.spage=86&rft.isbn=&rft.btitle=&rft.title=Meteoritics&rft.issn=00261114&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1994-01-01 N1 - Number of references - 33 N1 - PubXState - AZ N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; chemical composition; Lafayette Meteorite; Martian meteorites; meteorites; petrography; SEM data; SNC Meteorites; stony meteorites; TEM data ER - TY - JOUR T1 - The reaction of atomic hydrogen with germane; temperature dependence of the rate constant and implications for germane photochemistry in the atmospheres of Jupiter and Saturn AN - 50182117; 1993-010526 AB - Germane (GeH (sub 4) ) has been suggested to be a chemical tracer of atmospheric dynamics on Jupiter and Saturn. The observed abundance of germanium as GeH (sub 4) in the atmosphere of Saturn is dramatically low compared to the predicted GeH (sub 4) abundance. In order to provide data to help determine the major chemical form in which germanium exists in these planetary atmospheres, studies of the formation and loss processes for GeH (sub 4) are required. One of the important reactions to consider is that of hydrogen atom reaction with germane; H + GeH (sub 4) . Two previous measurements of the rate constant for this reaction, made only at 298 K, yielded values differing by a factor of 200. We have undertaken a study to determine the absolute rate constant for this reaction for the first time as a function of temperature and pressure. The method employed to measure the rate of this reaction is that of flash photolysis of dilute mixtures of GeH (sub 4) in argon, combined with time-resolved detection of H atoms via Lyman alpha resonance fluorescence. Results of this study show the reaction to be moderately rapid, independent of total pressure, but possessing a positive temperature dependence. Rate constant data over the temperature range 210 < or = T < or = 450 K yield the Arrhenius expression k (sub 1) = (1.94 + or - 0.39) X 10 (super -10) exp [(-1130 + or - 50)/T] cm (super 3) s (super -1) . Implications for modeling the germane photochemistry in the atmospheres of Jupiter and Saturn derived from the present temperature dependent kinetic study are (1) low-temperature reaction rate data relevant for these atmospheric conditions are provided, and (2) limits may be placed on the role of GeH (sub 4) production and loss processes in the modeler's efforts to elucidate the respective chemical forms and abundances in which the total germanium exists in the atmospheric systems of Jupiter and Saturn. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Nava, David F AU - Payne, Walter A AU - Marston, George AU - Stief, Louis J AU - Fox, Kenneth Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 5531 EP - 5537 PB - American Geophysical Union, Washington, DC VL - 98 IS - E3 SN - 0148-0227, 0148-0227 KW - experimental studies KW - GeH4 KW - photochemistry KW - Jupiter KW - atmosphere KW - temperature KW - giant planets KW - geochemical indicators KW - Saturn KW - planets KW - germane KW - chemical reactions KW - circulation KW - metals KW - hydrogen KW - germanium KW - tracers KW - outer planets KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+reaction+of+atomic+hydrogen+with+germane%3B+temperature+dependence+of+the+rate+constant+and+implications+for+germane+photochemistry+in+the+atmospheres+of+Jupiter+and+Saturn&rft.au=Nava%2C+David+F%3BPayne%2C+Walter+A%3BMarston%2C+George%3BStief%2C+Louis+J%3BFox%2C+Kenneth&rft.aulast=Nava&rft.aufirst=David&rft.date=1993-03-01&rft.volume=98&rft.issue=E3&rft.spage=5531&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02806 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Laboratory research for planetary atmospheres N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; chemical reactions; circulation; experimental studies; GeH4; geochemical indicators; geochemistry; germane; germanium; giant planets; hydrogen; Jupiter; metals; outer planets; photochemistry; planets; Saturn; temperature; tracers DO - http://dx.doi.org/10.1029/92JE02806 ER - TY - JOUR T1 - Metal-silicate thermochemistry at high temperature; magma oceans and the "excess siderophile element" problem of the Earth's upper mantle AN - 50181614; 1993-010523 AB - Recent theoretical considerations indicate that Earth should have been at least partly molten at the end of accretion and perhaps sufficiently to produce a magma ocean. Metal-silicate partition coefficients applicable to a magma ocean (3000 K-4000 K and up to 130 GPa) would be valuable to test such models against well-known mantle siderophile element abundances, but they have not been measured. However, an extrapolation of existing low temperature data to these extreme conditions has recently been attempted [Murthy, 1991]. Murthy's results seem to account for many apparent excesses of siderophile elements in the mantle. We examined his extrapolation method and found it to be inconsistent with published temperature dependencies for metal-silicate partition coefficients. We also attempted an extrapolation to magma ocean temperatures, based on known chemical behavior for several elements, and using published metal-silicate partition coefficients. If the chemistry quantified by the low-temperature data is applicable at high temperature, an important assumption, then our results indicate that high temperature alone will not help ameliorate the excess siderophile element problem of the upper mantle, in contrast to the conclusions of Murthy [1991]. For most elements, a modest increase in siderophile behavior is predicted with rising temperature if an iron-wuestite redox buffer is paralleled. But long-range extrapolation of experimental data containing even modest experimental errors is hazardous. Extrapolated high-temperature partition coefficients can differ by orders of magnitude for a given element, even though the input from independent studies is consistent within quoted errors. Direct experimental measurements for at least some of the siderophile elements will be necessary to accurately assess siderophile element behavior in a magma ocean. The excess siderophile element problem of the Earth's upper mantle remains unsolved. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Capobianco, Christopher J AU - Jones, John H AU - Drake, Michael J AU - Agee, Carl B Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 5433 EP - 5443 PB - American Geophysical Union, Washington, DC VL - 98 IS - E3 SN - 0148-0227, 0148-0227 KW - silicates KW - upper mantle KW - magma oceans KW - Earth KW - accretion KW - mantle KW - mathematical models KW - siderophile elements KW - temperature KW - partitioning KW - theoretical studies KW - partition coefficients KW - metals KW - magmas KW - thermochemical properties KW - geochemistry KW - high temperature KW - P-T conditions KW - 18:Solid-earth geophysics 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/50181614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Metal-silicate+thermochemistry+at+high+temperature%3B+magma+oceans+and+the+%22excess+siderophile+element%22+problem+of+the+Earth%27s+upper+mantle&rft.au=Capobianco%2C+Christopher+J%3BJones%2C+John+H%3BDrake%2C+Michael+J%3BAgee%2C+Carl+B&rft.aulast=Capobianco&rft.aufirst=Christopher&rft.date=1993-03-01&rft.volume=98&rft.issue=E3&rft.spage=5433&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02742 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Lunar and Planetary Institute workshop on Magma oceans N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accretion; Earth; geochemistry; high temperature; magma oceans; magmas; mantle; mathematical models; metals; P-T conditions; partition coefficients; partitioning; siderophile elements; silicates; temperature; theoretical studies; thermochemical properties; upper mantle DO - http://dx.doi.org/10.1029/92JE02742 ER - TY - JOUR T1 - The Mn-Fe negative correlation in olivines in ALHA 77257 ureilite AN - 50178993; 1993-010511 AB - Mn, Fe, and oxygen zoning profiles of olivines in the ALHA 77257 ureilite were measured by an electron probe microanalyzer to study the effects of reduction on the Mn-Fe value, because ureilite olivines exhibit thin reduced rims. The Mn content gradually increases toward the rim of ureilite olivines as the Fa (=100 X Fe/(Mg + Fe), mol %) component decreases, which suggests that the Mn-Fe content of olivine is related to redox conditions. A calculated diffusional cooling rate of 1-2 degrees C/h gives the best fit to both the observed MnO and Fa chemical zoning profiles of ALHA 77257. The results of melting experiments suggest that the negative correlation of Mn-Fe in olivine and low-Ca pyroxene is related to reduction and that the Mn-Fe positive correlation is related to temperature. The Fe/Mn-Fe/Mg trend of olivine cores in ureilites may be established by the reduction process at about 1275 degrees C. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Miyamoto, M AU - Furuta, T AU - Fujii, N AU - McKay, D S AU - Lofgren, G E AU - Duke, M B Y1 - 1993/03// PY - 1993 DA - March 1993 SP - 5301 EP - 5307 PB - American Geophysical Union, Washington, DC VL - 98 IS - E3 SN - 0148-0227, 0148-0227 KW - silicates KW - experimental studies KW - diffusion KW - stony meteorites KW - oxygen KW - ALHA 77257 KW - olivine group KW - ureilite KW - manganese KW - achondrites KW - iron KW - temperature KW - electron probe data KW - nesosilicates KW - meteorites KW - geochemical profiles KW - Allan Hills Meteorites KW - metals KW - olivine KW - orthosilicates KW - cooling KW - reduction KW - geochemistry 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/50178993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+Mn-Fe+negative+correlation+in+olivines+in+ALHA+77257+ureilite&rft.au=Miyamoto%2C+M%3BFuruta%2C+T%3BFujii%2C+N%3BMcKay%2C+D+S%3BLofgren%2C+G+E%3BDuke%2C+M+B&rft.aulast=Miyamoto&rft.aufirst=M&rft.date=1993-03-01&rft.volume=98&rft.issue=E3&rft.spage=5301&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02943 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - achondrites; ALHA 77257; Allan Hills Meteorites; cooling; diffusion; electron probe data; experimental studies; geochemical profiles; geochemistry; iron; manganese; metals; meteorites; nesosilicates; olivine; olivine group; orthosilicates; oxygen; reduction; silicates; stony meteorites; temperature; ureilite DO - http://dx.doi.org/10.1029/92JE02943 ER - TY - JOUR T1 - Specifying Land Surface Characteristics in General Circulation Models: Soil Profile Data Set and Derived Water- Holding Capacities AN - 19142815; 9305743 AB - A standardized global data set of soil horizon thicknesses and textures (particle size distributions) has been compiled from the United Nations FAO/UNESCO Soil Map of the World. This data set was developed for u se by an improved land-surface hydrology parameterization designed for the Goddard Institute for Space Studies General Circulation Model II9 (GISS GCM). When combined with the World Soil Data File, the result is a 1 degree by 1 degree global data set of variations in physical properties throughout the soil profile. These properties are important in the determination of water storage in individual soil horizons and exchange of water with the lower atmosphere within global climate models. These data sets, in conjunction with global vegetation data sets and texture-based estimates of available soil moisture, were used to calculate the global distributions of soil profile thickness, potential storage of water in the soil profile, potential storage of water in the root zone, and potential storage of water derived from soil texture. Comparisons with the water-holding capacities used in the GISS Model II show that these derived values for potential storage of water are consistently larger tha n those previously used in the GISS GCM. Preliminary analyses suggest that incorporation of this data set into the GISS GCM has improved the model's performance by including more realistic variability in land surface properties. (Author's abstract) JF - Global Biogeochemical Cycles GBCYEP, Vol. 7, No. 1, p 97- 108, March 1993. 2 fig, 6 tab, 44 ref, append. AU - Webb, R S AU - Rosenzweig, CE AU - Levine, E R AD - National Aeronautics and Space Administration, New York. Goddard Inst. for Space Studies Y1 - 1993/03// PY - 1993 DA - Mar 1993 KW - Water Resources Abstracts KW - Descriptors: *General circulation models KW - *Land surface KW - *Mapping KW - *Soil profiles KW - *Soil properties KW - *Soil water KW - Clays KW - Data collections KW - Goddard Institute for Space Studies KW - Gen KW - Maps KW - Model studies KW - Sand KW - Silt KW - Water storage KW - SW 5080:Evaluation, processing and publication KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19142815?accountid=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=&rft.atitle=Specifying+Land+Surface+Characteristics+in+General+Circulation+Models%3A+Soil+Profile+Data+Set+and+Derived+Water-+Holding+Capacities&rft.au=Webb%2C+R+S%3BRosenzweig%2C+CE%3BLevine%2C+E+R&rft.aulast=Webb&rft.aufirst=R&rft.date=1993-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - A high resolution study of the platelet ice ecosystem in McMurdo Sound, Antarctica: Photosynthetic and bio-optical characteristics of a dense microalgal bloom AN - 16741599; 3516114 AB - Microalgal absorption, biomass, and photophysiology were monitored in conjunction with the vertical attenuation of photosynthetically active radiation and spectral irradiance within the lower congelation ice and the platelet ice layer in McMurdo Sound, Antarctica in 1989. Between 89 and 99% of the algal biomass was located within the 0.68 m thick platelet layer where standing crop, measured as chlorophyll a (chl a), increased from 280 to 1090 mg m super(-2) between October 26 and December 3. Algal biomass was highly stratified within the platelet ice layer. An increasing fraction, 38 to 90%, of integrated chl a was collected from the upper 0.125 m of the platelet layer, near the base of the congelation ice. Algal pigments accounted for >95% of total light attenuation (ice + particles) within this layer. Sea ice microalgae exhibited photosynthetic properties consistent with extreme shade adaptation, including low mean pigment-specific absorption, a super(-)*, [0.0074 to 0.0040 m super(2) (mg chl a) super(-1)] and low assimilation numbers [0.032 to 0.180 mg C (mg chl a) super(-1) h super(-1)], both of which declined with depth. Vertical profiles revealed that low quantum yields for platelet ice assemblages were not a function of low temperature, as had previously been suspected, but vary with depth (and hence light level) from 0.033-0.051 mol C (Ein absorbed) super(-1) just beneath the base of the congelation ice to 0.086-0.113 mol C (Ein absorbed) super(-1) (approaching the theoretical maximum) at a depth of 0.31 m. Microalgae at the platelet ice surface exhibited photosynthetic characteristics which suggested that they were well adapted to the ambient light field while algae at depth appeared to retain excess photosynthetic capacity. JF - Marine ecology progress series. Oldendorf AU - Arrigo, K R AU - Robinson, D H AU - Sullivan, C W AD - NASA, Goddard Space Flight Cent., Code 971, Greenbelt, MD 20771, USA Y1 - 1993/03// PY - 1993 DA - Mar 1993 SP - 173 EP - 185 VL - 98 IS - 1-2 SN - 0171-8630, 0171-8630 KW - Antarctica, McMurdo Sound KW - Ecology Abstracts KW - absorption KW - photosynthesis KW - biomass KW - sea ice KW - algae KW - D 04627:Algae/lichens UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16741599?accountid=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=Marine+ecology+progress+series.+Oldendorf&rft.atitle=A+high+resolution+study+of+the+platelet+ice+ecosystem+in+McMurdo+Sound%2C+Antarctica%3A+Photosynthetic+and+bio-optical+characteristics+of+a+dense+microalgal+bloom&rft.au=Arrigo%2C+K+R%3BRobinson%2C+D+H%3BSullivan%2C+C+W&rft.aulast=Arrigo&rft.aufirst=K&rft.date=1993-03-01&rft.volume=98&rft.issue=1-2&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Marine+ecology+progress+series.+Oldendorf&rft.issn=01718630&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 - algae; photosynthesis; biomass; absorption; sea ice ER - TY - JOUR T1 - Lung growth and maturation in the rat model of experimentally induced congenital diaphragmatic hernia. AN - 75669769; 8466881 AB - This paper explores whether, in addition to the previously described lung hypoplasia with arteriolar hypermuscularization present in the nitrofen-induced foetal rat model of congenital diaphragmatic hernia (CDH), there are changes in the respiratory exchange epithelium, consistent with the hypothesis that abnormal surfactant production and/or release could account in part for the respiratory insufficiency in this condition. Foetal lungs from nitrofen-treated rats were obtained on the 21st day of gestation, weighed and processed for light and electron-microscopic studies and compared to controls of the same age. Tissues from 29 control and 26 CDH foetuses were examined. In addition, lungs from 19 foetuses born to nitrofen-treated dams but without CDH were also studied. The lungs from CDH animals were hypoplastic by weight in comparison with control ones and so were those from treated foetuses without CDH. Airway branching was arrested in CDH at the pseudo-glandular stage of development, corresponding to the 16th day of gestation and the very narrow air spaces were lined by generally mature type II pneumocytes rich in glycogen and lamellar bodies corresponding to the 19th day of gestation. This pattern was in contrast to that of the control foetuses which had a normal terminal sac pattern with flat type I pneumocyte lining corresponding to their gestational age. Nitrofentreated animals without CDH had intermediate patterns. These findings support the hypothesis that the surfactant-producing system has the same lesions in this experimental model as in other less-affordable ones, like the foetal lamb one. Further studies on the contribution of this factor to the altered respiratory physiology in CDH using this model are warranted. JF - European journal of pediatric surgery : official journal of Austrian Association of Pediatric Surgery ... [et al] = Zeitschrift fur Kinderchirurgie AU - Alfonso, L F AU - Vilanova, J AU - Aldazabal, P AU - Lopez de Torre, B AU - Tovar, J A AD - Universidad del País Vasco, Hospital NaSa de Aranzazu, San Sebastián, Spain. Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 6 EP - 11 VL - 3 IS - 1 SN - 0939-7248, 0939-7248 KW - Herbicides KW - 0 KW - Phenyl Ethers KW - Pulmonary Surfactants KW - nitrofen KW - N71UYG034A KW - Index Medicus KW - Animals KW - Diaphragm -- drug effects KW - Gestational Age KW - Disease Models, Animal KW - Hernia, Diaphragmatic -- pathology KW - Hernia, Diaphragmatic -- chemically induced KW - Pregnancy KW - Rats KW - Diaphragm -- pathology KW - Pulmonary Surfactants -- physiology KW - Rats, Wistar KW - Female KW - Lung -- drug effects KW - Hernias, Diaphragmatic, Congenital KW - Lung -- pathology KW - Lung -- abnormalities UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/75669769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=European+journal+of+pediatric+surgery+%3A+official+journal+of+Austrian+Association+of+Pediatric+Surgery+...+%5Bet+al%5D+%3D+Zeitschrift+fur+Kinderchirurgie&rft.atitle=Lung+growth+and+maturation+in+the+rat+model+of+experimentally+induced+congenital+diaphragmatic+hernia.&rft.au=Alfonso%2C+L+F%3BVilanova%2C+J%3BAldazabal%2C+P%3BLopez+de+Torre%2C+B%3BTovar%2C+J+A&rft.aulast=Alfonso&rft.aufirst=L&rft.date=1993-02-01&rft.volume=3&rft.issue=1&rft.spage=6&rft.isbn=&rft.btitle=&rft.title=European+journal+of+pediatric+surgery+%3A+official+journal+of+Austrian+Association+of+Pediatric+Surgery+...+%5Bet+al%5D+%3D+Zeitschrift+fur+Kinderchirurgie&rft.issn=09397248&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1993-05-07 N1 - Date created - 1993-05-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Toxicokinetics of inhaled bromotrifluoromethane (Halon 1301) in human subjects. AN - 75627897; 8449395 AB - Bromotrifluoromethane (CBrF3), commonly known as Halon 1301, is used as a fire extinguishant in the Space Shuttle. Several scenarios, such as a fire or a faulty alarm, could lead to its discharge resulting in a Halon 1301 concentration of up to 1% in the spacecraft cabin atmosphere. To examine the effects of Halon 1301 on mental performance and physiologic function, the National Aeronautics and Space Administration sponsored a human inhalation study. Four pairs of adult male subjects were each exposed in a double-blind fashion for 24 hr to 1% (10,000 ppm or 60,875 mg/m3) Halon 1301 and to air in two separate exposures approximately 1 week apart. Mental performance and physiologic function were assessed and the results are reported in a companion paper (D. S. Calkins, J. J. Degioanni, M. N. Tan, J. R. Davis, and D. L. Pierson. Fundam. Appl. Toxicol. 20, in press). Blood and breath samples from the exposed subjects were also collected to provide dosimetric and toxicokinetic information, which is presented here. Blood Halon 1301 levels increased rapidly and approached a steady state within 2 hr of beginning the exposure; the steady-state concentration was approximately 3-4.5 micrograms/ml. Breath samples collected during exposures closely reflected chamber concentrations. Analysis of postexposure blood samples revealed that Halon 1301 was eliminated biphasically with an average t1/2 alpha and t1/2 beta of 4.5 min (range 2.5-8.1 min) and 200 min (range 131-347 min), respectively. Halon 1301 concentrations in fat and soft tissues were also estimated. Subsequently, the end-tidal breath/blood/tissue/fat partition coefficients were calculated to be 17/1/0.5/33.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Fundamental and applied toxicology : official journal of the Society of Toxicology AU - Lam, C W AU - Weir, F W AU - Williams-Cavender, K AU - Tan, M N AU - Galen, T J AU - Pierson, D L AD - NASA Biomedical Operations and Research Branch, Johnson Space Center, Houston, Texas. Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 231 EP - 239 VL - 20 IS - 2 SN - 0272-0590, 0272-0590 KW - Bromochlorofluorocarbons KW - 0 KW - Chlorofluorocarbons, Methane KW - bromotrifluoromethane KW - 52231LCA7R KW - Index Medicus KW - Space life sciences KW - NASA Program Environmental Health KW - NASA Discipline Number 04-10 KW - NASA Center JSC KW - NASA Discipline Environmental Health KW - Adipose Tissue -- metabolism KW - Cognition -- drug effects KW - Humans KW - Body Burden KW - Adult KW - Respiration -- drug effects KW - Tissue Distribution KW - Administration, Inhalation KW - Male KW - Chlorofluorocarbons, Methane -- blood KW - Chlorofluorocarbons, Methane -- toxicity KW - Chlorofluorocarbons, Methane -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/75627897?accountid=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=Fundamental+and+applied+toxicology+%3A+official+journal+of+the+Society+of+Toxicology&rft.atitle=Toxicokinetics+of+inhaled+bromotrifluoromethane+%28Halon+1301%29+in+human+subjects.&rft.au=Lam%2C+C+W%3BWeir%2C+F+W%3BWilliams-Cavender%2C+K%3BTan%2C+M+N%3BGalen%2C+T+J%3BPierson%2C+D+L&rft.aulast=Lam&rft.aufirst=C&rft.date=1993-02-01&rft.volume=20&rft.issue=2&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Fundamental+and+applied+toxicology+%3A+official+journal+of+the+Society+of+Toxicology&rft.issn=02720590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1993-04-15 N1 - Date created - 1993-04-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - GEN T1 - Space Station Freedom. An Activity Book for Elementary School Students. AN - 62778178; ED364420 AB - This booklet was prepared by the National Aeronautics and Space Administration (NASA) for use by teachers in the classroom or by parents at home. The descriptions, classroom activities and illustrations are designed for elementary-level school children. On each right-hand page is a simple line drawing that illustrates the narrative and the activities described on the left-hand page. The drawings can be reproduced and colored by the students. The activities' subject matter include: the space shuttle, communications, weightlessness, solar energy, hatches and airlocks, and living and working in outer space. (PR) Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 26 KW - Space Colonization KW - Space Shuttle KW - ERIC, Resources in Education (RIE) KW - Science Education KW - Elementary Education KW - Aerospace Education KW - Elementary School Students KW - Scientific Concepts KW - Parent Materials KW - Elementary School Science KW - Science Teachers KW - Aerospace Technology KW - Science Activities KW - Space Exploration KW - Space Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62778178?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Topoveg; a rule-based geobotanical program to classify aeromagnetic, topographic and remotely sensed vegetation community data AN - 50954099; 1996-072686 JF - Proceedings of the Thematic Conference on Geologic Remote Sensing AU - Warner, Timothy AU - Levandowski, Donald W AU - Bell, Robin AU - Cetin, Haluk Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 345 EP - 356 PB - Environmental Research Institute of Michigan, Ann Arbor, MI VL - 9 SN - 1067-0106, 1067-0106 KW - Topoveg KW - North America KW - imagery KW - communities KW - geophysical surveys KW - geophysical methods KW - magnetic methods KW - Superior Province KW - vegetation KW - satellite methods KW - Quetico Provincial Park KW - Ontario KW - topography KW - Canada KW - surveys KW - Canadian Shield KW - Eastern Canada KW - SPOT KW - remote sensing KW - airborne methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50954099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Topoveg%3B+a+rule-based+geobotanical+program+to+classify+aeromagnetic%2C+topographic+and+remotely+sensed+vegetation+community+data&rft.au=Warner%2C+Timothy%3BLevandowski%2C+Donald+W%3BBell%2C+Robin%3BCetin%2C+Haluk&rft.aulast=Warner&rft.aufirst=Timothy&rft.date=1993-02-01&rft.volume=9&rft.issue=&rft.spage=345&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 - Ninth thematic conference on Geologic remote sensing; exploration, environment and engineering N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 23 N1 - PubXState - MI N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - airborne methods; Canada; Canadian Shield; communities; Eastern Canada; geophysical methods; geophysical surveys; imagery; magnetic methods; North America; Ontario; Quetico Provincial Park; remote sensing; satellite methods; SPOT; Superior Province; surveys; topography; Topoveg; vegetation ER - TY - JOUR T1 - Geotimes AN - 50372287; 1993-002981 JF - Geotimes AU - Gooding, James L Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 23 EP - 24 PB - American Geological Institute, Alexandria, VA VL - 38 IS - 2 SN - 0016-8556, 0016-8556 KW - programs KW - meteorites KW - research KW - review KW - exploration KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50372287?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geotimes&rft.atitle=Geotimes&rft.au=Gooding%2C+James+L&rft.aulast=Gooding&rft.aufirst=James&rft.date=1993-02-01&rft.volume=38&rft.issue=2&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Geotimes&rft.issn=00168556&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GEOTAJ N1 - SubjectsTermNotLitGenreText - exploration; meteorites; programs; research; review ER - TY - JOUR T1 - Workshop on Martian surface and atmosphere through time AN - 50368541; 1993-010489 JF - Journal of Geophysical Research AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3091 EP - 3482 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - programs KW - planets KW - symposia KW - landform evolution KW - atmosphere KW - Mars KW - MSATT KW - regolith KW - Martian surface and atmosphere through time KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50368541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&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=Journal+of+Geophysical+Research&rft.atitle=Workshop+on+Martian+surface+and+atmosphere+through+time&rft.au=Haberle%2C+Robert+M&rft.aulast=Haberle&rft.aufirst=Robert&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3091&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F93JE00187 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-15 N1 - SubjectsTermNotLitGenreText - atmosphere; landform evolution; Mars; Martian surface and atmosphere through time; MSATT; planets; programs; regolith; symposia; terrestrial planets DO - http://dx.doi.org/10.1029/93JE00187 ER - TY - JOUR T1 - The hemispherical asymmetry in the Martian polar caps AN - 50366924; 1993-010500 JF - Journal of Geophysical Research AU - Lindner, Bernhard Lee AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3339 EP - 3344 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - clouds KW - clastic sediments KW - atmosphere KW - Mars KW - polar caps KW - carbon dioxide KW - terrestrial planets KW - planets KW - ice KW - dust KW - sediments KW - seasonal variations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50366924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+hemispherical+asymmetry+in+the+Martian+polar+caps&rft.au=Lindner%2C+Bernhard+Lee%3BHaberle%2C+Robert+M&rft.aulast=Lindner&rft.aufirst=Bernhard&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3339&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02975 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 55 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-15 N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; clastic sediments; clouds; dust; ice; Mars; planets; polar caps; seasonal variations; sediments; terrestrial planets DO - http://dx.doi.org/10.1029/92JE02975 ER - TY - JOUR T1 - The production and escape of nitrogen atoms on Mars AN - 50339950; 1993-010498 JF - Journal of Geophysical Research AU - Fox, J L AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3297 EP - 3310 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - planets KW - atmosphere KW - Mars KW - geochemistry KW - nitrogen KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50339950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+production+and+escape+of+nitrogen+atoms+on+Mars&rft.au=Fox%2C+J+L%3BHaberle%2C+Robert+M&rft.aulast=Fox&rft.aufirst=J&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3297&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02289 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 85 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; geochemistry; Mars; nitrogen; planets; terrestrial planets DO - http://dx.doi.org/10.1029/92JE02289 ER - TY - JOUR T1 - Learning class descriptions from a data base of spectral reflectance of soil samples AN - 50295927; 1993-045325 JF - Remote Sensing of Environment AU - Kimes, D S AU - Irons, J R AU - Levine, E R AU - Horning, N A Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 161 EP - 169 PB - Elsevier, New York, NY VL - 43 IS - 2 SN - 0034-4257, 0034-4257 KW - soils KW - laboratory studies KW - experimental studies KW - data processing KW - data bases KW - characterization KW - spectral analysis KW - reflectance KW - samples KW - remote sensing KW - field studies KW - 20:Applied geophysics KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50295927?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Learning+class+descriptions+from+a+data+base+of+spectral+reflectance+of+soil+samples&rft.au=Kimes%2C+D+S%3BIrons%2C+J+R%3BLevine%2C+E+R%3BHorning%2C+N+A&rft.aulast=Kimes&rft.aufirst=D&rft.date=1993-02-01&rft.volume=43&rft.issue=2&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00344257 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 20 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - RSEEA7 N1 - SubjectsTermNotLitGenreText - characterization; data bases; data processing; experimental studies; field studies; laboratory studies; reflectance; remote sensing; samples; soils; spectral analysis ER - TY - JOUR T1 - Excitation of Earth's polar motion by atmospheric angular momentum variations, 1980-1990 AN - 50244794; 1994-033581 JF - Geophysical Research Letters AU - Chao, Benjamin Fong Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 253 EP - 256 PB - American Geophysical Union, Washington, DC VL - 20 IS - 3 SN - 0094-8276, 0094-8276 KW - motions KW - angular momentum KW - Earth KW - rotation KW - polar wandering KW - atmosphere KW - paleomagnetism KW - seasonal variations KW - equations KW - geodesy KW - magnetic field KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50244794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Excitation+of+Earth%27s+polar+motion+by+atmospheric+angular+momentum+variations%2C+1980-1990&rft.au=Chao%2C+Benjamin+Fong&rft.aulast=Chao&rft.aufirst=Benjamin&rft.date=1993-02-01&rft.volume=20&rft.issue=3&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 13 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - angular momentum; atmosphere; Earth; equations; geodesy; magnetic field; motions; paleomagnetism; polar wandering; rotation; seasonal variations ER - TY - JOUR T1 - Coastal zone color scanner pigment concentrations in the Southern Ocean and relationships to geophysical surface features AN - 50185084; 1993-045171 AB - The spatial and seasonal distributions of phytoplankton pigment concentration over the entire southern ocean have been studied for the first time using the coastal zone color scanner historical data set (from October 1978 through June 1986). Enhanced pigment concentrations are observed between 35 degrees S and 55 degrees S throughout the year, with such enhanced regions being more confined to the south in the austral summer and extending further north in the winter. North and south of the polar front, phytoplankton blooms (>1 mg/m (super 3) ) are not uniformly distributed around the circumpolar region. Instead, blooms appear to be located in regions of ice retreat (or high melt areas) such as the Scotia Sea and the Ross Sea, in relatively shallow areas (e.g., the Patagonian and the New Zealand shelves), in some regions of Ekman upwelling like the Tasman Sea, and near areas of high eddy kinetic energy such as the Agulhas retroflection. Among all features examined by regression analysis, bathymetry appears to be the one most consistently correlated with pigments (correlation coefficient being about -0.3 for the entire region). The cause of negative correlation with bathymetry is unknown but is consistent with the observed abundance of iron in shallow areas in the Antarctic region. It is also consistent with resuspension of phytoplankton cells by wind-induced mixing, especially in shallow waters. On the other hand, in the deep ocean (especially at latitudes 30%) in average pigment concentration over the entire region during different seasons indicates possible influence of time dependent parameters. JF - Journal of Geophysical Research AU - Comiso, J C AU - McClain, C R AU - Sullivan, C W AU - Ryan, J P AU - Leonard, C L Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 2419 EP - 2451 PB - American Geophysical Union, Washington, DC VL - 98 IS - C2 SN - 0148-0227, 0148-0227 KW - organic materials KW - ocean circulation KW - imagery KW - sea water KW - phytoplankton KW - pigments KW - Antarctic Ocean KW - statistical analysis KW - plankton KW - iron KW - nutrients KW - spatial variations KW - organic compounds KW - metals KW - marine environment KW - coastal environment KW - ecology KW - seasonal variations KW - bathymetry KW - geochemistry KW - color imagery KW - remote sensing KW - 02B:Hydrochemistry KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50185084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Coastal+zone+color+scanner+pigment+concentrations+in+the+Southern+Ocean+and+relationships+to+geophysical+surface+features&rft.au=Comiso%2C+J+C%3BMcClain%2C+C+R%3BSullivan%2C+C+W%3BRyan%2C+J+P%3BLeonard%2C+C+L&rft.aulast=Comiso&rft.aufirst=J&rft.date=1993-02-01&rft.volume=98&rft.issue=C2&rft.spage=2419&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JC02505 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 65 N1 - PubXState - DC N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Antarctic Ocean; bathymetry; coastal environment; color imagery; ecology; geochemistry; imagery; iron; marine environment; metals; nutrients; ocean circulation; organic compounds; organic materials; phytoplankton; pigments; plankton; remote sensing; sea water; seasonal variations; spatial variations; statistical analysis DO - http://dx.doi.org/10.1029/92JC02505 ER - TY - JOUR T1 - Martian global dust storms; zonally symmetric numerical simulations including size dependent particle transport AN - 50182275; 1993-010494 AB - The size-dependent transport of dust particles in the Martian atmosphere away from a specified surface source is numerically investigated employing a coupled system of a zonally symmetric primitive equation grid point model of the Martian atmosphere and an aerosol transport/microphysical model. The coupled model accounts for diabatic heating due to a radiatively active evolving dust field but neglects feedbacks between atmosphere-surface interactions and surface dust lifting, which is prescribed. The differing suspension lifetimes of various sized dust particles (radius = 1-80 mu m) in conjunction with spatially varying atmospheric dynamics results in latitudinal differences in several measurements of the column integrated particle concentration. The latitudinal extent of dust (opacity) transport away from a southern subtropical source is enhanced by the presence in suspension of smaller dust particles (r < 1 mu m) when compared to the presence of only a single dust particle size (2.5 mu m). The input particle size distribution, that inferred by Toon et al. (1977) from Mariner 9 IRIS measurements, is not preserved in suspension at subsolar latitudes for spherical particles (r = 1 - 10 mu m), counter to Toon et al.'s interpretation of IRIS spectra. Visible to 9-mu m dust opacity ratios, which provide an indication of the relative number of large particles, are generally smaller (<1.7) than values (2-2.5) inferred from both Mariner 9 and Viking measurements. The invocation of slower falling nonspherical (disk) shaped particles results in an improved maintenance in suspension of the input particle size distribution at subtropical latitudes and visible to-9 mu m opacity ratios in better agreement with inferred values. Calculated visible opacity values at the Viking lander latitudes increase less abruptly than was observed at the onsets of the two 1977 dust storms, which has implications for both source locations and magnitudes. This work indicates the importance of considering the full range of particle sizes (and shapes) of the suspended dust during Martian global dust storms and their impact upon the spatial extent and wavelength-dependent radiative influence of such storms. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Murphy, James R AU - Haberle, Robert M AU - Toon, Owen B AU - Pollack, James B Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3197 EP - 3220 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - dust storms KW - numerical models KW - clastic sediments KW - grain size KW - global KW - sedimentation KW - data processing KW - atmosphere KW - suspended materials KW - Mars KW - terrestrial planets KW - planets KW - dust KW - sediments KW - wind transport KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Martian+global+dust+storms%3B+zonally+symmetric+numerical+simulations+including+size+dependent+particle+transport&rft.au=Murphy%2C+James+R%3BHaberle%2C+Robert+M%3BToon%2C+Owen+B%3BPollack%2C+James+B&rft.aulast=Murphy&rft.aufirst=James&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3197&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02945 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 39 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; clastic sediments; data processing; dust; dust storms; global; grain size; Mars; numerical models; planets; sedimentation; sediments; suspended materials; terrestrial planets; wind transport DO - http://dx.doi.org/10.1029/92JE02945 ER - TY - JOUR T1 - Rates of oxidative weathering on the surface of Mars AN - 50182188; 1993-010502 AB - The presence of sulfates and ferric-bearing assemblages in the Martian regolith implies that oxidative weathering of iron- and sulfur-bearing minerals has occurred through time on the surface of Mars. A model of acid weathering has been proposed for the iron-rich basalts on Mars. In this model, aqueous oxidation of iron sulfides released SO (sub 4) (super 2-) and H (super +) ions that initiated the dissolution of basaltic ferromagnesian silicates and released Fe (super 2+) ions. The Fe (super 2+) ions eventually underwent ferrolysis reactions and produced insoluble hydrous ferric oxide phases. Measurements of the time-dependence of acid weathering reactions have shown that pyrrhotite (Fe (sub 7) S (sub 8) ) is rapidly converted to pyrite (FeS (sub 2) ) plus dissolved ferrous iron, the rate of pyrite formation decreasing with rising pH and lower temperatures. The rate of oxidation of aqueous Fe (super 2+) ions derived from weathering of iron sulfides by dissolved atmospheric oxygen is known to be pH-dependent; rates are fast above pH 4.5 at ambient temperatures on the Earth's surface and much slower in acidic groundwater. On Mars, oxidation rates of dissolved Fe (super 2+) ions in equatorial melt-waters in contact with the atmosphere (P (sub O) (sub 2) = 10 (super -5) atm) are estimated to lie in the range 0.3-3.0 ppb Fe yr (super -1) over the pH range 2 to 6. These oxidation rates are more than 10 (super 5) times slower than corresponding reactions near the freezing point of water on Earth. Oxidation of Fe (super 2+) ions is estimated to be extremely slow in brine eutectic solutions that might be present on Mars and to be negligible in the frozen regolith. Such slow oxidation rates of aqueous Fe (super 2+) ions in acidic groundwater (now permafrost) during the evolution of the Martian regolith would aid the stability, solubility and transport of iron in solution and other dissolved species over the surface of Mars. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Burns, Roger G AU - Fisher, Duncan S AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3365 EP - 3372 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - sulfate ion KW - oxidation KW - rates KW - Mars KW - weathering KW - iron KW - ferrous iron KW - terrestrial planets KW - planets KW - metals KW - ice KW - hydrogen KW - sulfur KW - ground ice KW - geochemistry KW - regolith KW - pH KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Rates+of+oxidative+weathering+on+the+surface+of+Mars&rft.au=Burns%2C+Roger+G%3BFisher%2C+Duncan+S%3BHaberle%2C+Robert+M&rft.aulast=Burns&rft.aufirst=Roger&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3365&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02055 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 65 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ferrous iron; geochemistry; ground ice; hydrogen; ice; iron; Mars; metals; oxidation; pH; planets; rates; regolith; sulfate ion; sulfur; terrestrial planets; weathering DO - http://dx.doi.org/10.1029/92JE02055 ER - TY - JOUR T1 - An assessment of the nature and origins of the carbon-bearing components in fines collected during the sawing of EET A79001 AN - 50182050; 1993-010510 AB - Saw dust obtained from the cutting of EET A79001, a meteorite with a presumed Martian origin, has been analyzed for its carbon content and stable isotopic composition in order to assess the sample's potential value for studies aimed at elucidating Martian surface processes. These fines, which are available in plentiful supply, are a useful source of material and are important since they are a representative whole-rock sample of this complex meteorite. In addition, the fines give an indication of contamination sources which may affect not only the collected sawings but also the sawn surface of the meteorite. A number of contaminants were identified in the fines (e.g. organic materials, Teflon, diamond, and carbon associated with metal). It is considered that the levels of carbon contamination measured represent a worst possible case and hence provide a valuable reference with which to compare other analyses of this sample, or indeed, other Martian meteorites. Evidence was found for an indigenous carbonate component similar to that observed previously in other fractions of the meteorite. However, based on the results presented herein it is not possible to assert that isotopically distinct carbonate minerals of different origins are present in the meteorite. The levels of trapped Martian atmospheric CO (sub 2) calculated for the fines are unexpectedly high ( approximately 1 ppm carbon), but this could be influenced by the presence of other, as yet unknown, carbonaceous materials. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Wright, I P AU - Hartmetz, C P AU - Pillinger, C T AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3477 EP - 3482 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - experimental studies KW - stony meteorites KW - Martian meteorites KW - fines KW - analog simulation KW - Mars KW - Elephant Moraine Meteorites KW - achondrites KW - terrestrial planets KW - SNC Meteorites KW - planets KW - meteorites KW - EETA 79001 KW - sample preparation KW - shergottite KW - carbon KW - regolith KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+assessment+of+the+nature+and+origins+of+the+carbon-bearing+components+in+fines+collected+during+the+sawing+of+EET+A79001&rft.au=Wright%2C+I+P%3BHartmetz%2C+C+P%3BPillinger%2C+C+T%3BHaberle%2C+Robert+M&rft.aulast=Wright&rft.aufirst=I&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3477&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02056 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - achondrites; analog simulation; carbon; EETA 79001; Elephant Moraine Meteorites; experimental studies; fines; Mars; Martian meteorites; meteorites; planets; regolith; sample preparation; shergottite; SNC Meteorites; stony meteorites; terrestrial planets DO - http://dx.doi.org/10.1029/92JE02056 ER - TY - JOUR T1 - Volcanic geology of Hadriaca Patera and the eastern Hellas region of Mars AN - 50182014; 1993-010507 AB - Hadriaca Patera is a low-relief volcano in the southern highlands of Mars northeast of the Hellas basin. Layered, friable deposits composing the extensive channeled flanks of the volcano surround a well-defined, summit caldera containing late stage eruptive products. The morphologic characteristics of the channels suggest erosion by groundwater sapping and surface runoff. The erosional morphology of the volcano, the lack of lava flow features, and the friable nature of the flank materials indicate that Hadriaca Patera consists predominantly of pyroclastic deposits. Gravity-driven flow models demonstrate that the distribution of flank materials can be attributed to the emplacement of pyroclastic flows. Both magmatic and hydromagmatic eruption models are viable: For the magmatic case, the necessary mass eruption rates (10 (super 7) -10 (super 8) kg/s), ejection velocities (> or = approximately 400 m/s), and volatile contents ( approximately 1.5-3.0 wt % H (sub 2) O) are consistent with parameters derived for terrestrial Plinian eruptions; for the hydromagmatic case, the required energy conversion efficiencies are comparable to those of laboratory experiments, and the inferred permeability of the Martian crust allows large amounts of groundwater to be transported rapidly (at flow rates of 10 (super 3) -10 (super 4) m (super 3) /s) into the region. Models of cooling during emplacement indicate that welding of pyroclastic flows can occur at large distances (hundreds of kilometers) from a source vent on Mars; the layering within Hadriaca Patera could be attributed to welding of pyroclastic flows that would control its susceptibility to erosion. Morphologic similarities between Hadriaca and Tyrrhena paterae suggest a similar volcanic history, with an early pyroclastic-dominated, shield-building phase followed by effusive eruptions at their summit calderas and on the flank of Tyrrhena Patera. The formation of the extensive ridged plains of Hesperia Planum following the formation of the highland paterae supports the interpretation of a transition from explosive to effusive volcanism in the eastern Hellas region. A progressive depletion of volatiles on Mars is consistent with the morphologic properties of highland paterae and other central vent volcanoes. A predominance of hydrovolcanic eruptions in the development of Hadriaca and Tyrrhena paterae would imply that the transition in volcanic eruption style can be attributed to a volatile depletion of the crust, whereas magmatic eruptions at the paterae would be indicative of temporal changes in Martian magmas. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Crown, David A AU - Greeley, Ronald AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3431 EP - 3451 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - volcanic rocks KW - Hellas Basin KW - igneous rocks KW - Mars KW - terrestrial planets KW - calderas KW - pyroclastics KW - planets KW - Hadriaca Patera KW - volcanic features KW - pyroclastic flows KW - eruptions KW - volcanoes KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50182014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Volcanic+geology+of+Hadriaca+Patera+and+the+eastern+Hellas+region+of+Mars&rft.au=Crown%2C+David+A%3BGreeley%2C+Ronald%3BHaberle%2C+Robert+M&rft.aulast=Crown&rft.aufirst=David&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3431&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02804 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 90 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - calderas; crust; eruptions; Hadriaca Patera; Hellas Basin; igneous rocks; Mars; planets; pyroclastic flows; pyroclastics; terrestrial planets; volcanic features; volcanic rocks; volcanoes DO - http://dx.doi.org/10.1029/92JE02804 ER - TY - JOUR T1 - New error calibration tests for gravity models using subset solutions and independent data; applied to GEM-T3 AN - 50181733; 1994-033580 AB - Orbit error projections based on the error covariance estimates of Goddard Earth Model (GEM)-T3 have been shown to be reliable through their projection on observation residuals within independent data sets. Special geopotential solutions were developed based upon the same data set and weighting used in the GEM-T3 gravity model, but with a significant satellite data set eliminated from the solution. These subset gravity models are then used to compute the observation residuals within orbital solutions for the omitted satellite and the results are compared to their predicted values based on the error covariance of these models. To ensure meaningful results, the tests were designed so that the observation residuals are dominated by geopotential modeling errors. This yields a reliable test of the error estimates of the subset solutions and hence tests the data weighting used in the construction of these models (GEM-T3 and subset solutions alike). The error estimates for GEM-T3 are based upon an optimal data weighting method and have been obtained in a separate calibration process. The test results shown here indicate that the GEM-T3 error estimates for the gravity parameters are calibrated and that the predicted orbit errors correspond well with actual orbit accuracies. Test results of the complete GEM-T3 model with totally independent high precision DORIS Doppler tracking data acquired on the French SPOT-2 satellite confirms these conclusions. Copyright 1993 by the American Geophysical Union. JF - Geophysical Research Letters AU - Lerch, F J AU - Nerem, R S AU - Chinn, D S AU - Chan, J C AU - Patel, G B AU - Klosko, S M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 249 EP - 252 PB - American Geophysical Union, Washington, DC VL - 20 IS - 3 SN - 0094-8276, 0094-8276 KW - models KW - gravity field KW - errors KW - Earth KW - calibration KW - orbital observations KW - Goddard Earth Model KW - satellite methods KW - SPOT KW - remote sensing KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=New+error+calibration+tests+for+gravity+models+using+subset+solutions+and+independent+data%3B+applied+to+GEM-T3&rft.au=Lerch%2C+F+J%3BNerem%2C+R+S%3BChinn%2C+D+S%3BChan%2C+J+C%3BPatel%2C+G+B%3BKlosko%2C+S+M&rft.aulast=Lerch&rft.aufirst=F&rft.date=1993-02-01&rft.volume=20&rft.issue=3&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F92GL02824 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 10 N1 - PubXState - DC N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - calibration; Earth; errors; Goddard Earth Model; gravity field; models; orbital observations; remote sensing; satellite methods; SPOT DO - http://dx.doi.org/10.1029/92GL02824 ER - TY - JOUR T1 - Microcraters on Mars; evidence for past climate variations AN - 50181583; 1993-010509 AB - Mars climate models predict hundredfold or greater variations in the mass of the Martian atmosphere due to large amplitude variations in Mars' obliquity through time. The production rates of impact craters on the Martian surface should be greatly affected by these atmospheric mass variations. We have constructed a simulation of the meteor bombardment of Mars which shows that during periods of the lowest theoretical atmospheric mass, the production rates of centimeter-sized hypervelocity impact craters are increased significantly. These results imply that limited in situ observations of microcraters visible on Martian rock faces could validate major aspects of the astronomical theory for climate change on Mars. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Vasavada, Ashwin R AU - Milavec, Thomas J AU - Paige, David A AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3469 EP - 3476 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - cratering KW - planets KW - microcraters KW - impact features KW - meteorite flux KW - Mars KW - impact craters KW - impacts KW - paleoclimatology KW - changes KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Microcraters+on+Mars%3B+evidence+for+past+climate+variations&rft.au=Vasavada%2C+Ashwin+R%3BMilavec%2C+Thomas+J%3BPaige%2C+David+A%3BHaberle%2C+Robert+M&rft.aulast=Vasavada&rft.aufirst=Ashwin&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3469&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02942 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - changes; cratering; impact craters; impact features; impacts; Mars; meteorite flux; microcraters; paleoclimatology; planets; terrestrial planets DO - http://dx.doi.org/10.1029/92JE02942 ER - TY - JOUR T1 - Geomorphic evolution of the Martian highlands through ancient fluvial processes AN - 50181564; 1993-010508 AB - Craters in the Martian highlands are preserved in various stages of degradation. As a result of an erosional process active from the Middle Noachian (4.40-3.92 b.y.) through the Hesperian (3.55-1.8 b.y.), ejecta associated with fresh impact craters became etched, hummocky, and dissected by runoff channels. With time, interior gullies became deeply incised and ejecta deposits were entirely removed. Infilling of the craters followed until, in some instances, the craters were completely buried. Only fluvial processes explain these morphologic variations, the size range of affected craters, and the size-frequency distribution curves associated with these crater populations. Based on the number of superposed fresh impact craters, fluvial processes affecting the highlands ceased entirely by the end of the Hesperian. No correlation between cessation of degradation and latitude exists. However, a strong correlation exists between cessation of degradation and elevation. Degradation ended at higher elevations (e.g., 3-4 km; N [5]= approximately 200, Late Noachian) before lower elevations (e.g., 1-2 km; N[5]= approximately 180, Early Hesperian), suggesting that cessation was coupled to desiccation of the volatile reservoir and degassing of a 5-20 bar primordial atmosphere. Volatiles released to the surface by runoff channel formation and seepage may have been part of a complex hydrologic cycle that included periodic, heavy amounts of precipitation. Rainfall was principally responsible for degrading the highlands, eroding impact craters, and redistributing sediments. Rainfall also recharged the highland aquifers, allowing sapping and seepage to continue for hundreds of millions of years. As the primordial atmosphere was lost, cloud condensation, and thus rainfall and aquifer recharge, occurred at progressively lower elevations. Based on estimates on the amount of material removed and duration of degradation, denudation rates averaged 0.0001-0.005 mm/yr. These rates are equivalent to those in terrestrial periglacial environments. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Craddock, Robert A AU - Maxwell, Ted A AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3453 EP - 3468 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - degradation KW - erosion KW - landform evolution KW - resurfacing KW - channels KW - water erosion KW - Mars KW - erosion features KW - highlands KW - terrestrial planets KW - planets KW - craters KW - denudation KW - runoff KW - fluvial features KW - geomorphology KW - gullies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geomorphic+evolution+of+the+Martian+highlands+through+ancient+fluvial+processes&rft.au=Craddock%2C+Robert+A%3BMaxwell%2C+Ted+A%3BHaberle%2C+Robert+M&rft.aulast=Craddock&rft.aufirst=Robert&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3453&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02508 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 95 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - channels; craters; degradation; denudation; erosion; erosion features; fluvial features; geomorphology; gullies; highlands; landform evolution; Mars; planets; resurfacing; runoff; terrestrial planets; water erosion DO - http://dx.doi.org/10.1029/92JE02508 ER - TY - JOUR T1 - The surface of Syrtis Major; composition of the volcanic substrate and mixing with altered dust and soil AN - 50181542; 1993-010504 AB - Syrtis Major is an old, low relief volcanic plateau near the equatorial regions of Mars. It is a persistent low-albedo feature on the planet and is thought to contain a high abundance of exposed bedrock and/or locally derived surface material and debris. Spatially resolved variations in surface spectral properties, and therefore composition, are investigated with data from the Imaging Spectrometer for Mars (ISM) instrument. ISM obtained 128 wavelength channel spectra from 0.76 to 3.16 mu m for contiguous pixels approximately 22 X 22 km in size across much of the plateau. The value and spatial distribution of four primary spectral variables (albedo, continuum slope, wavelength of the ferric-ferrous band minimum, area of the ferric-ferrous absorption) are mapped and coregistered to Viking digital photomosaics. Analysis of these maps shows that although there is a high degree of overall spectral variability on the plateau, the key indicators of mafic mineralogy are relatively homogeneous. Detailed examination of reflectance spectra from representative areas across the plateau indicate the volcanic surface is dominated by augite-bearing basalts and the pyroxene composition in the basalts is estimated to be 0.275+ or - 0.075 Ca/(Ca+Fe+Mg) and 0.3+ or - 0.1 Fe/(Fe+Ca+Mg). Additional mineral components may include olivine, feldspar, and glass. Most of the spectral variability on the plateau is interpreted to result from mixing of volcanic bedrock and/or locally derived surface material and debris with highly altered dust and soil. In western Syrtis Major the altered material is a transient component on the surface or occurs in large spatially coherent patches (e.g., crater rims). In eastern Syrtis Major it is apparent that the dust components are firmly fixed to the basaltic substrate as a stable oxide rind or coating. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Mustard, John F AU - Erard, S AU - Bibring, J P AU - Head, J W AU - Hurtrez, S AU - Langevin, Y AU - Pieters, C M AU - Sotin, C J AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3387 EP - 3400 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - soils KW - surface properties KW - volcanic rocks KW - clastic sediments KW - igneous rocks KW - Mars KW - terrestrial planets KW - planets KW - Syrtis Major KW - dust KW - sediments KW - volcanoes KW - spectra KW - reflectance KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+surface+of+Syrtis+Major%3B+composition+of+the+volcanic+substrate+and+mixing+with+altered+dust+and+soil&rft.au=Mustard%2C+John+F%3BErard%2C+S%3BBibring%2C+J+P%3BHead%2C+J+W%3BHurtrez%2C+S%3BLangevin%2C+Y%3BPieters%2C+C+M%3BSotin%2C+C+J%3BHaberle%2C+Robert+M&rft.aulast=Mustard&rft.aufirst=John&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3387&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02682 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - clastic sediments; dust; igneous rocks; Mars; planets; reflectance; regolith; sediments; soils; spectra; surface properties; Syrtis Major; terrestrial planets; volcanic rocks; volcanoes DO - http://dx.doi.org/10.1029/92JE02682 ER - TY - JOUR T1 - A coupled subsurface-boundary layer model of water on Mars AN - 50181515; 1993-010499 AB - We have written a one-dimensional numerical model of the exchange of H (sub 2) O between the atmosphere and subsurface of Mars through the planetary boundary layer (PBL). Our goal is to explore the mechanisms of H (sub 2) O exchange and to elucidate the role played by the regolith in the local H (sub 2) O budget. The atmospheric model includes effects of Coriolis, pressure gradient, and frictional forces for momentum: radiation, sensible heat flux, and advection for heat. The model differs from Flasar and Goody by use of appropriate Viking-based physical constants and inclusion of the radiative effects of atmospheric dust. The pressure gradient force is specified or computed from a simple slope model. The subsurface model accounts for conduction of heat and diffusion of H (sub 2) O through a porous adsorbing medium in response to diurnal forcing. The model is initialized with depth-independent H (sub 2) O concentrations (2 kg m (super -3) ) in the regolith and a dry atmosphere. The model terminates when the atmospheric H (sub 2) O column abundance stabilizes to 0.1% per sol. Results suggest that in most cases, the flux through the Martian surface reverses twice in the course of each sol. In the midmorning, the regolith begins to release H (sub 2) O to the atmosphere and continues to do so until midafternoon, when it once more becomes a sink. It remains an H (sub 2) O sink throughout the Martian night. In the early morning and late afternoon, while the atmosphere is convective, the atmosphere supplies H (sub 2) O to the ground at a rapid rate, occasionally resulting in strong pulses of H (sub 2) O into the ground. The model also predicts that for typical conditions, perhaps 15-20 sols are required for the regolith to supply an initially dry atmosphere with its equilibrium load. The effects of surface albedo, thermal inertia, solar declination, atmospheric optical depth, and regolith pore structure are explored. Increased albedo cools the regolith, so less H (sub 2) O appears in the atmospheric column above a bright surface. The friction velocity is higher above a dark surface, so there is more diurnal H (sub 2) O exchange; relative humidities are much higher above a bright surface. Thermal inertia I affects the propagation of energy through a periodically heated homogeneous surface. Our results suggest that higher thermal inertia forces more H (sub 2) O into the atmosphere because the regolith is warmer at depth. Surface stresses are higher above a low I surface, but there is less diurnal exchange because the atmosphere is dry. The latitude experiment predicts that the total diurnal insolation is more important to the adsorptively controlled H (sub 2) O column abundance than the peak daytime surface temperature. Fogs and high relative humidity will be far more prevalent in the winter hemisphere. The dust opacity of the atmosphere plays a very significant role; the PBL height, column abundances, relative humidity, and surface stresses all increase very strongly as the optical depth approaches zero. The dust opacity of the atmosphere must be considered in subsequent PBL models. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Zent, Aaron P AU - Haberle, Robert M AU - Houben, Howard C AU - Jakosky, Bruce M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3319 EP - 3337 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - water KW - terrestrial planets KW - models KW - planets KW - thermal inertia KW - numerical models KW - one-dimensional models KW - data processing KW - atmosphere KW - Mars KW - boundary layer KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=A+coupled+subsurface-boundary+layer+model+of+water+on+Mars&rft.au=Zent%2C+Aaron+P%3BHaberle%2C+Robert+M%3BHouben%2C+Howard+C%3BJakosky%2C+Bruce+M&rft.aulast=Zent&rft.aufirst=Aaron&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3319&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02805 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; boundary layer; data processing; Mars; models; numerical models; one-dimensional models; planets; terrestrial planets; thermal inertia; water DO - http://dx.doi.org/10.1029/92JE02805 ER - TY - JOUR T1 - Mineralogy of three slightly palagonitized basaltic tephra samples from the summit of Mauna Kea, Hawaii AN - 50181077; 1993-010505 AB - Certain palagonites from Hawaii are considered to be among the best analogs for Martian fines, based upon similar spectral properties. For this study, three distinctly colored layers were sampled from slightly palagonitized basaltic tephra just below the summit of Mauna Kea at 4145 m elevation. The mineralogy of size fractions of these samples was examined by diffuse reflectance (visible and near-IR) and far-IR spectroscopy, optical microscopy, X ray diffraction, Moessbauer spectroscopy, magnetic analysis, electron microprobe analysis (EMPA), and transmission and scanning electron microscopy. For the 20-1000 mu m size fraction, sample HWMK1l (red) is essentially completely oxidized and has a hematite (Ti-hematite) pigment dispersed throughout the silicate matrix. The alteration is present throughout particle volumes, and only a trace amount of lass is present; no palagonitic rinds were detected. In addition to ferric Fe-Ti oxides, other phases detected were plagioclase feldspar and a trace of olivine. Sample HWMK12 (black) has the lowest proportion of ferric-bearing phases and is thus least weathered. It consists mostly of unaltered glass with embedded plagioclase and minor amounts of pyroxene, olivine, and Ti-magnetite. In some grains, a thin palagonitic rind is visible, indicating some surface alteration. The mineralogy for sample HWMK13 (yellow) is the same as that for HWMK12, except that it has distinct, well-developed palagonitic rinds consisting of erionite and smectite. For all samples, the amount of glass and plagioclase decreases and the amount of smectite increases with decreasing particle size for size fractions <20 mu m. For HWMK11, the amount of hematite is essentially constant, and mica is present only in the coarse clay-sized fraction; smectites are low in structural Fe. For HWMK12 and HWMK13, the zeolite erionite is present along with smectites and nanophase ferric oxides (np-Ox). Erionite abundance decreases and np-Ox abundance increases with decreasing particle size. The smectite in both black and yellow samples contains some Fe (super 3+) in octahedral layers. There were only two mineral phases containing iron in the fine clay fraction, namely, smectites and iron oxides. For HWMK11, relatively large iron oxide particles (0.1 to 0.4 mu m) were dispersed on clay surfaces; for HWMK12 and HWMK13, much finer np-Ox particles were present in lesser concentrations. Formation of the zeolite erionite is consistent with the arid climate zone where these samples were collected. However, transient hydrothermal processes that occurred during the eruption of Mauna Kea volcano under its permanent ice cap during the Pleistocene may have resulted in minerals such as zeolites and smectites which may persist as relicts over a long period of time. Most of the iron released during weathering of basaltic tephra precipitated as poorly crystalline iron oxides and some of the Fe has substituted for the octahedral cations in the structure of authigenic smectites. The Ti-hematite in HWMK11, however, is the result of high-temperature oxidation of Ti-magnetite and exsolution from ironbearing silicate phases. Visible and near-IR reflectivity spectra for the <20 mu m size fraction of HWMK11 is dominated by well-crystalline Ti-hematite. Corresponding spectra for HWMK12 and HWMK13, whose ferric mineralogy is dominated by np-Ox particles, are more similar to Martian bright-region spectra. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Golden, D C AU - Morris, R V AU - Ming, D W AU - Lauer, H V, Jr AU - Yang, S R AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3401 EP - 3411 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - United States KW - silicates KW - Hawaii Island KW - volcanic rocks KW - iron oxides KW - glasses KW - palagonitization KW - igneous rocks KW - analog simulation KW - Mauna Kea KW - Mars KW - metasomatism KW - infrared spectra KW - electron probe data KW - mineral composition KW - hematite KW - oxides KW - spectra KW - basaltic composition KW - Mossbauer spectra KW - experimental studies KW - Hawaii County Hawaii KW - smectite KW - Hawaii KW - East Pacific Ocean Islands KW - TEM data KW - palagonite KW - clay minerals KW - terrestrial planets KW - pyroclastics KW - planets KW - Oceania KW - sheet silicates KW - Polynesia KW - SEM data KW - regolith KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50181077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogy+of+three+slightly+palagonitized+basaltic+tephra+samples+from+the+summit+of+Mauna+Kea%2C+Hawaii&rft.au=Golden%2C+D+C%3BMorris%2C+R+V%3BMing%2C+D+W%3BLauer%2C+H+V%2C+Jr%3BYang%2C+S+R%3BHaberle%2C+Robert+M&rft.aulast=Golden&rft.aufirst=D&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3401&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02590 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - analog simulation; basaltic composition; clay minerals; East Pacific Ocean Islands; electron probe data; experimental studies; glasses; Hawaii; Hawaii County Hawaii; Hawaii Island; hematite; igneous rocks; infrared spectra; iron oxides; Mars; Mauna Kea; metasomatism; mineral composition; Mossbauer spectra; Oceania; oxides; palagonite; palagonitization; planets; Polynesia; pyroclastics; regolith; SEM data; sheet silicates; silicates; smectite; spectra; TEM data; terrestrial planets; United States; volcanic rocks DO - http://dx.doi.org/10.1029/92JE02590 ER - TY - JOUR T1 - Soil texture and granulometry at the surface of Mars AN - 50180958; 1993-010506 AB - The physical behavior of the Martian surface soil has been characterized remotely by both photopolarimetry and radiometry. The degree of linear polarization defines a coefficient b which is related to the top surface soil texture and is calibrated in terms of grain size, or as a fraction of the area exhibiting uncovered clean rocks. This coefficient b was recorded with the instrument VPM (Visual Polarimeter Mars) on board Soviet orbiter MARS 5 in 1974. The radiometric thermal inertia coefficient I is essentially a measurement of the soil compaction, or an effective average particle size in the soil texture, through the few decimeters below the top surface sensed by polarimetry. The instrument IRTM (Infra Red Thermal Mapper) was used on board the Viking spacecraft between 1976 and 1982. The polarimetric scans raked a strip covering two contrasting regions, the dark-hued Mare Erythraeum and the light-hued Thaumasia. Over these wide areas, several smaller typical terrains were characterized by the three parameters A (albedo), b (related to top surface grain size) and I (underlaying compaction or block size). The large dark region Erythraeum is characterized everywhere by a uniform polarization response, despite the large geomorphological diversity of the surface. The values of A and b indicate a ubiquitous coating or mantling with small dark grains of albedo 12.7%, with a radius of 10 to 20 mu m. Thermal inertia coefficient I indicates that the sub-surface is divided in pieces around 300 to 600 mu m in size. A simple model consisting of sand-size particles completely coated with 15 mu m black grains is compatible with both measurements. Conversely, the brighter terrain Thaumasia discloses a large variety of soil properties. A typical location with albedo 16.3% has a surface covered with orange grains, probably very dispersed in size, for which the largest grains are 20 to 40 mu m. The subsurface is divided into pieces 180-300 mu m or smaller, if cemented. On the basis of terrestrial analogs of the Martian soil (Morris et al., 1990), it is surmised that the near-surface soil on the dark areas could be tachylite sand-size grains surficially coated by cohesive black particles of titanomagnetite. The bright orange grains in the Thaumasia-like terrains could be made of the weathered (palagonitized) basalt glass particles of sideromelane, as found in terrestrial analogs (Singer, 1982), Thaumasia is known to be a source area for dust storm production. The observed soil texture provides the large grains needed for saltation to occur, causing the intermixed small grains to be ejected from the surface and carried by wind. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Dollfus, Audouin AU - Deschamps, Marc AU - Zimbelman, James R AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3413 EP - 3429 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - soils KW - planets KW - physical properties KW - textures KW - grain size KW - Mars KW - spectra KW - regolith KW - infrared spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Soil+texture+and+granulometry+at+the+surface+of+Mars&rft.au=Dollfus%2C+Audouin%3BDeschamps%2C+Marc%3BZimbelman%2C+James+R%3BHaberle%2C+Robert+M&rft.aulast=Dollfus&rft.aufirst=Audouin&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3413&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE01502 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 58 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - grain size; infrared spectra; Mars; physical properties; planets; regolith; soils; spectra; terrestrial planets; textures DO - http://dx.doi.org/10.1029/92JE01502 ER - TY - JOUR T1 - Thermally altered palagonitic tephra; a spectral and process analog to the soil and dust of Mars AN - 50180929; 1993-010503 AB - We studied six palagonitic soil samples (PH-1 through PH-6) which were collected at 30-cm intervals from a lava slab on Mauna Kea, Hawaii. The samples represent an alteration sequence caused by heating during emplacement of molten lava over a preexisting tephra cone. They are both spectral and weathering/alteration process analogs to the Martian surface. Techniques employed included visible and near-IR spectroscopy, Moessbauer spectroscopy, and magnetic analysis. The two samples collected from beyond 90 cm from the slab (PH-5 and PH-6) did not see the transient heating event and are composed of coarse-grained glassy basaltic (hawaiitic) particles, some of which have been moderately palagonitized since formation of the cone in the late Pleistocene. The four samples closest to the slab (PH-1 through PH-4) have been strongly altered in response to heating during its emplacement; their iron oxide mineralogy is dominated by nanophase ferric oxide. The sample adjacent to the slab (PH-1), which would have seen the highest temperatures, has a factor of 3 less H (sub 2) O and contains crystalline hematite and magnetite in addition to nanophase ferric oxide. Lesser amounts of magnetite, but not hematite, are present in samples 30 cm (PH-2) and 60 cm (PH-3) from the slab. The reflectivity spectra of samples PH-2 through PH-4 are similar to spectra of palagonites reported by other workers to be good Mars visible to near-IR spectral analogs. The reflectivity spectrum of PH-1 is an even better spectral analog to Mars in that it exhibits absorption features indicative of both nanophase and crystalline ferric oxides (similar to several new Martian telescopic data sets). Our sampling site may also be a process analog for Mars, in that heating episodes by volcanism and/or impact cratering could produce crystalline ferric oxides from poorly crystalline palagonitic material. Thus, localized thermal alteration events may provide a volumetrically important mechanism for the palagonitization of basaltic glass and the production of crystalline ferric oxides on Mars. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Bell, James F, III AU - Morris, Richard V AU - Adams, John B AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3373 EP - 3385 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - United States KW - Hawaii Island KW - volcanic rocks KW - iron oxides KW - glasses KW - thermal alteration KW - palagonitization KW - igneous rocks KW - optical spectra KW - analog simulation KW - Mauna Kea KW - Mars KW - metasomatism KW - infrared spectra KW - sediments KW - oxides KW - spectra KW - soils KW - Hawaii County Hawaii KW - clastic sediments KW - Hawaii KW - East Pacific Ocean Islands KW - weathering KW - palagonite KW - terrestrial planets KW - pyroclastics KW - planets KW - volcanic glass KW - dust KW - Oceania KW - Polynesia KW - regolith KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180929?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Thermally+altered+palagonitic+tephra%3B+a+spectral+and+process+analog+to+the+soil+and+dust+of+Mars&rft.au=Bell%2C+James+F%2C+III%3BMorris%2C+Richard+V%3BAdams%2C+John+B%3BHaberle%2C+Robert+M&rft.aulast=Bell&rft.aufirst=James&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3373&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02367 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 62 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Univ. Hawaii; Planet. Geosci. Div., Publ. No. 705; Sch. Ocean and Earth Sci. and Technol., Contrib. No. 3082 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - analog simulation; clastic sediments; dust; East Pacific Ocean Islands; glasses; Hawaii; Hawaii County Hawaii; Hawaii Island; igneous rocks; infrared spectra; iron oxides; Mars; Mauna Kea; metasomatism; Oceania; optical spectra; oxides; palagonite; palagonitization; planets; Polynesia; pyroclastics; regolith; sediments; soils; spectra; terrestrial planets; thermal alteration; United States; volcanic glass; volcanic rocks; weathering DO - http://dx.doi.org/10.1029/92JE02367 ER - TY - JOUR T1 - Simulations of the general circulation of Martian atmosphere; 2, Seasonal pressure variations AN - 50180914; 1993-010492 AB - We have simulated the CO (sub 2) seasonal cycle of the Martian atmosphere and surface with a hybrid energy balance model that incorporates dynamical and radiation information from a large number of general circulation model (GCM) runs. This information includes heating due to atmospheric heat advection, the seasonally varying ratio of the surface pressure at the two Viking landing sites to the globally averaged pressure (r (sub k) ), the rate of CO (sub 2) condensation in the atmosphere, and solar heating of the atmosphere and surface. The GCM runs collectively covered a full set of seasonal dates and a large range of dust optical depths. We have compared the predictions of the energy balance model with the seasonal pressure variations measured at the two Viking landing (VL)sites and the springtime retreat of the seasonal polar cap boundaries. Numerical experiments with the energy balance model indicate that the following quantities have a strong influence on the VL seasonal pressures: albedo A (sub is) of the seasonal CO (sub 2) ice deposits, emissivity e (sub is) of this deposit, atmospheric heat advection, and the pressure ratio r (sub k) . This last factor does not enter into the seasonal CO (sub 2) condensation/sublimation cycle in a significant way. The numerical experiments also indicate that the following factors have only a minor effect on the VL pressures: (1) the net radiative effects (solar plus thermal) of atmospheric dust at the latitudes of the polar caps, and (2) the subsurface heat conduction. The significant influence of the pressure ratio r (sub k) on the VL seasonal pressures is due to large seasonal variations in the global distribution of surface pressure. At low and mid-latitudes, these "weather" variations are engendered by seasonal changes in the Hadley circulation and by seasonal changes in the atmospheric scale height close to the surface. Comparison of the VL1 and VL2 pressures with one another provide direct evidence for the presence of such a "weather component" in the measured pressures. The differential weather component (VL2-VL1) derived from the data is reproduced approximately by the energy balance model. We find that the seasonal weather variations account for about 20% and 30% of the seasonal pressure variations measured at VL1 and VL2, respectively, that dynamical and scale height variations make comparable contributions to the weather component during years without global dust storms, and that the dynamical contribution is the larger one during years with global dust storms. Interannual variations in the weather component, rather than variations in CO (sub 2) condensation rates, are the dominant sources of the observed interannual variations of pressure during the season of global dust storms. Optimum fits to the Viking pressure measurements and the data on the polar cap boundaries are achieved with values of about 0.45 and 0.75 for A (sub is) and e (sub is) , respectively. The former value is consistent with available photometric determinations of the albedo of the seasonal caps, while the latter value, especially in light of infrared thermal mapper brightness temperatures at high latitudes, may reflect, in part, the influence of the polar hood on the radiation balance of the winter polar regions. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Pollack, James B AU - Haberle, Robert M AU - Murphy, James R AU - Schaeffer, James AU - Lee, Hilda Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3149 EP - 3181 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - planets KW - pressure KW - circulation KW - digital simulation KW - data processing KW - atmosphere KW - Mars KW - seasonal variations KW - energy KW - carbon dioxide KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Simulations+of+the+general+circulation+of+Martian+atmosphere%3B+2%2C+Seasonal+pressure+variations&rft.au=Pollack%2C+James+B%3BHaberle%2C+Robert+M%3BMurphy%2C+James+R%3BSchaeffer%2C+James%3BLee%2C+Hilda&rft.aulast=Pollack&rft.aufirst=James&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3149&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02947 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; circulation; data processing; digital simulation; energy; Mars; planets; pressure; seasonal variations; terrestrial planets DO - http://dx.doi.org/10.1029/92JE02947 ER - TY - JOUR T1 - An analysis of the history of dust activity on Mars AN - 50180884; 1993-010495 AB - A new comprehensive list of possible and probable dust activity has been compiled from various published lists and additional data. All previously listed events have been reviewed and evaluated. For uniformity and clarity, each event is classified using a new system that includes a well-defined nomenclature. Maps showing the reported locations of individual major events, as well as a summary map of the smaller "local" events, have been compiled. Detailed commentaries describe the events and/or circumstances of their observation. The seasonal distribution of Martian dust events is diagrammed and discussed together with a seasonal and annual (Mars years) timeline that includes the frequency of photographic coverage. The new compilation shows that major dust storms have originated in many different regions across the planet, with some evidence of more activity in the southern hemisphere generally and in specific regions like Hellas. Regional dust storms have been observed in nearly all seasons, except for two relatively narrow periods which occur near times when the polar caps have reached their maximum/minimum extent. Regional dust storms tend to occur most frequently, and all planet-encircling dust storms have been observed during the southern spring and summer seasons, although there is significant interannual variability. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Martin, Leonard J AU - Zurek, Richard W AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3221 EP - 3246 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - dust storms KW - clastic sediments KW - sedimentation KW - atmosphere KW - Mars KW - terrestrial planets KW - regional patterns KW - planets KW - dust KW - sediments KW - seasonal variations KW - wind transport KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50180884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+analysis+of+the+history+of+dust+activity+on+Mars&rft.au=Martin%2C+Leonard+J%3BZurek%2C+Richard+W%3BHaberle%2C+Robert+M&rft.aulast=Martin&rft.aufirst=Leonard&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3221&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02937 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 100 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; clastic sediments; dust; dust storms; Mars; planets; regional patterns; seasonal variations; sedimentation; sediments; terrestrial planets; wind transport DO - http://dx.doi.org/10.1029/92JE02937 ER - TY - JOUR T1 - Geographic variations in the thermal and diffusive stability of ground ice on Mars AN - 50179870; 1993-010501 AB - To investigate the stability of ground ice within the top several meters of the Martian regolith, time-dependent models of the thermal and diffusive behavior of the regolith have been developed. The geographic distribution of thermal inertia and albedo as well as the latitudinal variation in insolation have been included in calculations of surface and subsurface temperatures between + or -60 degrees latitude. Ground ice was found to be stable where the annual mean surface and subsurface temperatures were below the atmospheric frost point. This generally occurs poleward of the mid-latitudes. The latitude poleward of which ground ice is stable varies by about 20 degrees to 30 degrees from one longitude to another. Geographic variations in thermal inertia and albedo are the primary factors controlling regional variations in ice stability. Calculations of temperatures at. high and low obliquity suggest that ground ice would be stable globally at high obliquity and would not be stable between + or -60 degrees latitude at low obliquity. Thermally driven diffusion of atmospheric water vapor within the regolith was modeled accounting for both ordinary molecular and Knudsen transport and equilibrium between ice, vapor, and adsorbed phases. Atmospheric water vapor was found to be able to supply the top few meters of the regolith with ice in regions where the annual mean surface temperature was below the atmospheric frost point. Ice was found to begin condensing in as short as 1000 Martian years. Rapid accumulation of ice in the pore space of the upper layers of the regolith acted to choke transport to lower layers and slow the diffusion process. Even so, after 10 (super 5) Martian years, in some cases, as much as 30% to 40% of the available pore space accumulated ice. The total amount of subsurface ice ranged from a few to more than 25 g/cm (super 2) within the top few meters in regions of stability. Ground ice was found to form below a depth where the annual average vapor pressure over ice was equal to the annual average atmospheric vapor pressure near the surface. Atmospheric vapor was not found to accumulate as ice below a depth where the seasonal temperature oscillations gave way to the geothermal gradient. The time scales for condensation of ground ice were found to be comparable to that of orbital oscillations suggesting that the present geographic distribution of ground ice may depend on the orbital history of Mars. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Mellon, Michael T AU - Jakosky, Bruce M AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3345 EP - 3364 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - water KW - diffusion KW - stability KW - atmosphere KW - Mars KW - thermal regime KW - terrestrial planets KW - planets KW - spatial variations KW - ice KW - ground ice KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50179870?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geographic+variations+in+the+thermal+and+diffusive+stability+of+ground+ice+on+Mars&rft.au=Mellon%2C+Michael+T%3BJakosky%2C+Bruce+M%3BHaberle%2C+Robert+M&rft.aulast=Mellon&rft.aufirst=Michael&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3345&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02355 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 70 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; diffusion; ground ice; ice; Mars; planets; regolith; spatial variations; stability; terrestrial planets; thermal regime; water DO - http://dx.doi.org/10.1029/92JE02355 ER - TY - JOUR T1 - Mars atmospheric dynamics as simulated by the NASA Ames general circulation model; 1, The zonal-mean circulation AN - 50179849; 1993-010490 AB - This is the first in a series of papers that will discuss Mars atmospheric dynamics as simulated by the NASA Ames General Circulation Model (GCM). This paper describes the GCM's zonal-mean circulation and how it responds to seasonal variations and dust loading. The results are compared to Mariner 9 and Viking observations, and the processes responsible for maintaining the simulated circulation are discussed. At the solstices the zonal-mean circulation consists of a single cross-equatorial Hadley circulation between 30 degrees S and 30 degrees N. For relatively modest dust loadings (tau =0.3), the associated peak mass flux is 100 X 10 (super 8) kg s (super -1) at northern winter solstice and 55 X 10 (super 8) kg s (super -1) at southern winter solstice. At both seasons, westerlies dominate the winter hemisphere, and easterlies dominate the summer hemisphere. Maximum zonal winds occur near the model top ( approximately 47 km) and are about the same at both seasons: 120 m s (super -1) in the winter hemisphere and 60 m s (super -1) in the summer hemisphere. Mean surface westerlies of 10-20 m s (super -1) are predicted at the middle and high latitudes of the winter hemisphere, as well as in the summer hemisphere near the rising branch of the Hadley circulation. The latter has the structure of a "jet" and is particularly strong (>20 m s (super -1) ) at northern winter solstice. With increasing amounts of dust (up to tau =5), the zonal mean circulation at northern winter solstice intensifies and gives no indication of a negative feedback. Dust can easily double the mass flux of the Hadley circulation. In the solstice simulations, the mean meridional circulation is the main dynamical contributor to the heat and momentum balance; the eddies play a relatively minor role. There is no evidence in these simulations for a polar warming. At the equinoxes the zonal mean circulation is more Earth-like and consists of two roughly symmetric Hadley cells with westerly winds in the mid-latitudes of each hemisphere and easterlies in the tropics. The simulated zonal winds are about half as strong as they are at solstice. However, the strength of the mean meridional circulation is much less than at solstice and averages between 5 and 10 X 10 (super 8) kg s (super -1) . At these seasons, the eddies and mean circulation make comparable, but opposing, contributions to the heat and momentum balances. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Haberle, Robert M AU - Pollack, James B AU - Barnes, Jeffrey R AU - Zurek, Richard W AU - Leovy, Conway B AU - Murphy, James R AU - Lee, Hilda AU - Schaeffer, James Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3093 EP - 3123 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - government agencies KW - data processing KW - atmosphere KW - Mars KW - terrestrial planets KW - models KW - planets KW - dynamics KW - circulation KW - NASA KW - digital simulation KW - NASA Ames model KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50179849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mars+atmospheric+dynamics+as+simulated+by+the+NASA+Ames+general+circulation+model%3B+1%2C+The+zonal-mean+circulation&rft.au=Haberle%2C+Robert+M%3BPollack%2C+James+B%3BBarnes%2C+Jeffrey+R%3BZurek%2C+Richard+W%3BLeovy%2C+Conway+B%3BMurphy%2C+James+R%3BLee%2C+Hilda%3BSchaeffer%2C+James&rft.aulast=Haberle&rft.aufirst=Robert&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3093&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02946 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; circulation; data processing; digital simulation; dynamics; government agencies; Mars; models; NASA; NASA Ames model; planets; terrestrial planets DO - http://dx.doi.org/10.1029/92JE02946 ER - TY - JOUR T1 - Thermal structure and dust loading of the Martian atmosphere during late southern summer; Mariner 9 revisited AN - 50179244; 1993-010497 AB - The temperature structure and dust loading of the Martian atmosphere are investigated using thermal emission spectra recorded by the Mariner 9 infrared interferometer spectrometer (IRIS). The analysis is restricted to a subset of the IRIS data consisting of approximately 2400 spectra in a 12-day period extending from L (sub S) =343 degrees to L (sub S) =348 degrees , corresponding to late southern summer on Mars. Simultaneous retrieval of the vertical distribution of both atmospheric temperature and dust optical depth is accomplished through an iterative procedure which is performed on each spectrum. The inclusion of dust opacity in the retrieval algorithm causes the retrieved temperatures to change by more than 20 K in some atmospheric layers. The largest column-integrated 9 mu m dust optical depths ( approximately 0.4) occur over the equatorial regions. The highest atmospheric temperatures (> 260 K) are found at low altitudes near the subsolar latitude ( approximately 6 degrees S) while the coldest temperatures (< 150 K) are found at levels near 1.0 mbar over the winter pole. A comparison of temperature maps for 1400 LT and 0200 LT indicates diurnal temperature variations as large as 80 K at low altitudes near the subsolar latitude, whereas diurnal temperature changes at pressures less than 1.0 mbar are typically about 10 K. Both dayside and night side temperatures above about 0.1 mbar ( approximately 40 km) are warmer over the winter (north) polar region than over the equator or the summer (south) polar region. This thermal structure suggests the existence of a net zonally averaged meridional circulation with rising motion at low latitudes, poleward flow at altitudes above 40 km, and subsidence over the poles. Because a meridional circulation transports atmospheric constituents as well as heat, it has significant implications for the net flux of dust and water into the polar regions. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Santee, Michelle AU - Crisp, David AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3261 EP - 3279 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - clastic sediments KW - sedimentation KW - atmosphere KW - Mars KW - thermal regime KW - temperature KW - infrared spectra KW - terrestrial planets KW - planets KW - Mariner 9 KW - circulation KW - Mariner Program KW - dust KW - sediments KW - thermal emission KW - spectra KW - seasonal variations KW - wind transport KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50179244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Thermal+structure+and+dust+loading+of+the+Martian+atmosphere+during+late+southern+summer%3B+Mariner+9+revisited&rft.au=Santee%2C+Michelle%3BCrisp%2C+David%3BHaberle%2C+Robert+M&rft.aulast=Santee&rft.aufirst=Michelle&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3261&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE01896 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Calif. Inst. Technol., Div. Geol. and Planet. Sci., Contrib. No. 5095 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; circulation; clastic sediments; dust; infrared spectra; Mariner 9; Mariner Program; Mars; planets; seasonal variations; sedimentation; sediments; spectra; temperature; terrestrial planets; thermal emission; thermal regime; wind transport DO - http://dx.doi.org/10.1029/92JE01896 ER - TY - JOUR T1 - Martian aeolian features and deposits; comparisons with general circulation model results AN - 50179225; 1993-010493 AB - The development of a general circulation model (GCM) of Mars' atmosphere allows questions to be addressed concerning the relationships between near-surface winds and the distribution of wind-related features and deposits. Predictions of wind surface stress as a function of season and dust optical depth are used to investigate the distribution and orientation of wind streaks, yardangs, and rock abundance on the surface. The occurrence and orientation of bright streaks are well accounted for by the GCM. Results suggest that bright streaks form during southern hemisphere summer by Hadley cell circulation, in which dust is raised in the southern hemisphere, carried northward at high altitudes, then deposited in the wake of craters and other topographic obstacles by the descending Hadley cell. The reduction in the number of bright streaks southward from 30 degrees N is interpreted to reflect the depletion of dust by near-surface winds blowing to the south. Although the winds responsible for the formation of the dark streaks are not well reproduced in all areas by GCM simulations, a band of high wind surface stresses in the southern subtropics corresponding to the latitude band where most of the dark streaks are found are predicted at the height of the dust storm season (southern hemisphere summer). Yardang orientations do not match the GCM simulations for any season; their orientation is attributed to either structural control in the rocks (such as joint patterns) or to a change in wind patterns from the time when the yardangs formed. The global distribution of rocks on the surface is correlated well with predicted wind stress, particularly during dust storm season; the rocky areas are sites of strong winds, suggesting that fine material is swept away by the wind, leaving rocks and coarser material behind. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Greeley, Ronald AU - Skypeck, Andrew AU - Pollack, James B AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3183 EP - 3196 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - eolian features KW - dust storms KW - sedimentation KW - data processing KW - atmosphere KW - Mars KW - terrestrial planets KW - models KW - planets KW - circulation KW - wind transport KW - winds KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50179225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Martian+aeolian+features+and+deposits%3B+comparisons+with+general+circulation+model+results&rft.au=Greeley%2C+Ronald%3BSkypeck%2C+Andrew%3BPollack%2C+James+B%3BHaberle%2C+Robert+M&rft.aulast=Greeley&rft.aufirst=Ronald&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3183&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02580 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 39 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; circulation; data processing; dust storms; eolian features; Mars; models; planets; sedimentation; terrestrial planets; wind transport; winds DO - http://dx.doi.org/10.1029/92JE02580 ER - TY - JOUR T1 - Mars atmospheric dynamics as simulated by the NASA Ames general circulation model; 2, Transient baroclinic eddies AN - 50178959; 1993-010491 AB - A large set of experiments performed with the NASA Ames Mars general circulation model (GCM) have been analyzed to determine the properties, structure, and dynamics of the simulated transient baroclinic eddies. The Mars GCM simulations span a wide range of seasonal dates and dust loadings and include a number of special sensitivity experiments (e.g., with flat topography). There is strong transient baroclinic eddy activity in the extratropics of the northern hemisphere during the northern autumn, winter, and spring seasons. The eddy activity remains strong for very large dust loadings, though it shifts northward. The eastward propagating eddies are characterized by zonal wavenumbers of 1-4 and periods of approximately 2-10 days. In several simulations, the eddy variance is dominated by a single zonal wavenumber and a narrow range of periods. The longer (wavenumbers 1 and 2) transient eddies have a very deep vertical structure, exhibiting a maximum kinetic energy density at the model top ( approximately 45-50 km) in many of the simulations. In a simulation for early northern spring the eddies are quite shallow, however. The transient eddies generate the bulk of their energy baroclincally via large meridional and vertical heat fluxes, at both lower and upper levels. This is despite the fact that their vertical structure is typically close to equivalent barotropic above the lowest 10 km. The eddies also appear to generate a substantial amount of energy barotropically, via large meridional momentum fluxes at both lower and upper levels. In the tropics and northern subtropics at upper levels ( approximately 25-50 km) there are strong transient eddy motions with structures resembling those characteristic of inertially unstable modes. This eddy activity appears to be a response to the forcing of a region of marginal inertial stability by the extratropical transient baroclinic eddies, as the wavenumbers and periods are the same as those in the extratropics. A major surprise is the presence of very weak transient eddy activity in a number of the southern winter simulations. It appears that this is partly a consequence of the stabilizing effects of the zonally symmetric topography in the GCM, but it also must be associated with certain aspects of the zonal-mean circulation in southern winter. This is indicated by the presence of relatively large amplitude eddies in simulations for early southern autumn and spring and in a southern winter solstice simulation incorporating a different topography (derived from the Mars Digital Terrain Model). This topography differs from that used in most of the GCM simulations in not being characterized by steep symmetric slopes (which are stabilizing to baroclinic instability) in southern high latitudes. It is hypothesized that the very large extent of the southern seasonal polar cap and high elevations in the south both might contribute to weakening the transient eddy activity. Large zonally symmetric topography in the northern hemisphere of the Mars GCM also appears to have a strong impact on the transient eddies, acting to increase the dominant zonal wavenumbers and phase speeds. The properties of the GCM baroclinic eddies in the northern extratropics are compared in detail with analogous properties inferred from Viking Lander meteorology observations. The GCM eddies are found to be very similar to those observed in most respects. A notable exception is that the eddy amplitudes in the highly dusty GCM simulations are much larger than those observed by Viking during the 1977 winter solstice dust storm. This is almost certainly at least partly due to the relatively small latitudinal expansion of the Hadley circulation in the highly dusty GCM experiments. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Barnes, Jeffrey R AU - Pollack, James B AU - Haberle, Robert M AU - Leovy, Conway B AU - Zurek, Richard W AU - Lee, Hilda AU - Schaeffer, James Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3125 EP - 3148 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - government agencies KW - data processing KW - atmosphere KW - Mars KW - terrestrial planets KW - models KW - planets KW - dynamics KW - circulation KW - NASA KW - eddies KW - digital simulation KW - NASA Ames model KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50178959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mars+atmospheric+dynamics+as+simulated+by+the+NASA+Ames+general+circulation+model%3B+2%2C+Transient+baroclinic+eddies&rft.au=Barnes%2C+Jeffrey+R%3BPollack%2C+James+B%3BHaberle%2C+Robert+M%3BLeovy%2C+Conway+B%3BZurek%2C+Richard+W%3BLee%2C+Hilda%3BSchaeffer%2C+James&rft.aulast=Barnes&rft.aufirst=Jeffrey&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3125&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02935 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; circulation; data processing; digital simulation; dynamics; eddies; government agencies; Mars; models; NASA; NASA Ames model; planets; terrestrial planets DO - http://dx.doi.org/10.1029/92JE02935 ER - TY - JOUR T1 - The enigmatic object 2201 Oljato; is it an asteroid or an evolved comet? AN - 50178927; 1993-010485 AB - The study of the near-Earth object 2201 Oljato has resulted in many surprises in the decade in which it has been examined. Its orbital properties have been associated with meteor showers, and its modeled orbital evolution is chaotic, a property which might indicate a history related to comets. Telescopic observations of its visible and near-infrared spectral reflectance, broad-band visible and near-infrared photometry, infrared radiometric measurements, and radar echoes are reported here from two apparitions, 1979 and 1983. A look at all available observational data shows that this asteroid has a high radiometric albedo, a property not associated with comet nuclei. In certain wavelength regimes it is classified as an S-type asteroid, in others, an E-type, but its overall spectral reflectance is not typical of either taxonomic type, and neither type is thought of as cometlike. Unexpectedly high ultraviolet reflectance at the 1979 apparition was suggested to be the result of residual outgassing as in a comet. The UV photometric data are modeled as fluorescent emission from neutral species found in comets. The resulting calculations indicate a plausible value for OH and CN emission at 0.3085 and 0.38 mu m relative to the observed range of active comets. Observations to monitor photometric variations and to search for gaseous activity using observational techniques designed specifically for this purpose were planned and executed in October 1992 to verify or refute the interpretations presented here. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - McFadden, Lucy A AU - Cochran, Anita L AU - Barker, Edwin S AU - Cruikshank, Dale P AU - Hartmann, William K Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3031 EP - 3041 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - albedo KW - surface properties KW - photometry KW - comets KW - asteroids KW - ultraviolet spectra KW - spectra KW - Oljato Asteroid KW - infrared spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50178927?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+enigmatic+object+2201+Oljato%3B+is+it+an+asteroid+or+an+evolved+comet%3F&rft.au=McFadden%2C+Lucy+A%3BCochran%2C+Anita+L%3BBarker%2C+Edwin+S%3BCruikshank%2C+Dale+P%3BHartmann%2C+William+K&rft.aulast=McFadden&rft.aufirst=Lucy&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3031&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE01895 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 57 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Planet. Sci. Inst., Publ. No. 302 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - albedo; asteroids; comets; infrared spectra; Oljato Asteroid; photometry; spectra; surface properties; ultraviolet spectra DO - http://dx.doi.org/10.1029/92JE01895 ER - TY - JOUR T1 - Interannual variability of planet-encircling dust storms on Mars AN - 50178509; 1993-010496 AB - Interannual variability of the atmosphere of Mars is dominated by the occurence, or absence, of planet-encircling dust storms. In this paper we use a recent review of Earth-based telescopic observations of Mars together with Viking orbiter and lander data to estimate the frequency of occurrence of planet-encircling dust storms over the past century and to test whether the period spanned by the Mariner 9 and Viking missions to Mars is representative of the decades prior to 1950. In doing so, we take into account the practical limitations imposed on Earth-based coverage of Mars by the orbital geometries of the two planets. Both spacecraft and Earth-based observations suggest that planet-encircling dust storms on Mars occur during a so-called "dust storm season" in southern spring and summer. Viking data demonstrate decidedly that planet-encircling dust storms could have occurred in the past on Mars without being detected from Earth during years in which Mars was far from Earth during the dust storm season and thus difficult to observe. However, the same historical record indicates that planet-encircling storms were absent during the dust storm seasons monitored during several favorable oppositions prior to 1956 and after 1986. Overall, the chance of a planet-encircling dust storm occurring in any arbitrary Mars year is estimated to be approximately one in three (18-55% at the 95% level of confidence), if such occurrence is random from year-to-year and yet restricted seasonally to southern spring and summer. Copyright 1993 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Zurek, Richard W AU - Martin, Leonard J AU - Haberle, Robert M Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 3247 EP - 3259 PB - American Geophysical Union, Washington, DC VL - 98 IS - E2 SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - dust storms KW - planets KW - annual variations KW - global KW - sedimentation KW - atmosphere KW - Mars KW - wind transport KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50178509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Interannual+variability+of+planet-encircling+dust+storms+on+Mars&rft.au=Zurek%2C+Richard+W%3BMartin%2C+Leonard+J%3BHaberle%2C+Robert+M&rft.aulast=Zurek&rft.aufirst=Richard&rft.date=1993-02-01&rft.volume=98&rft.issue=E2&rft.spage=3247&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F92JE02936 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Conference title - Workshop on Martian surface and atmosphere through time N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - annual variations; atmosphere; dust storms; global; Mars; planets; sedimentation; terrestrial planets; wind transport DO - http://dx.doi.org/10.1029/92JE02936 ER - TY - JOUR T1 - A search for C (sub 60) in carbonaceous chondrites AN - 50128012; 1993-007342 AB - Carbonaceous residues obtained by acid demineralization of interior Murchison and Allende meteorites were analysed using vacuum sublimation at approx 400 degrees C to determine the fullerenes C (sub 60) and C (sub 70) . An upper limit of 2 ppb was found for C (sub 60) cf. ppm levels for polycyclic aromatic hydrocarbons (PAHs). These hydrocarbons contain excess deuterium and hence indicate an interstellar component in the meteorites; the results do not however indicate a ubiquitous presence of C (sub 60) in the interstellar medium. High molecular weight PAHs were found in these meteorite samples, including coronene and its methyl derivatives. JF - Geochimica et Cosmochimica Acta AU - De Vries, M S AU - Reihs, K AU - Wendt, H R AU - Golden, W G AU - Hunziker, H E AU - Fleming, R AU - Peterson, E AU - Chang, S Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 933 EP - 938 PB - Pergamon, Oxford VL - 57 IS - 4 SN - 0016-7037, 0016-7037 KW - organic materials KW - meteorites KW - organic compounds KW - stony meteorites KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - CM chondrites KW - carbonaceous chondrites KW - chondrites KW - aromatic hydrocarbons KW - Murchison Meteorite 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/50128012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+search+for+C+%28sub+60%29+in+carbonaceous+chondrites&rft.au=De+Vries%2C+M+S%3BReihs%2C+K%3BWendt%2C+H+R%3BGolden%2C+W+G%3BHunziker%2C+H+E%3BFleming%2C+R%3BPeterson%2C+E%3BChang%2C+S&rft.aulast=De+Vries&rft.aufirst=M&rft.date=1993-02-01&rft.volume=57&rft.issue=4&rft.spage=933&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990179-Z 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 - 1993-01-01 N1 - Number of references - 36 N1 - Document feature - 1 table, illus. N1 - SuppNotes - Letter N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; carbonaceous chondrites; chondrites; CM chondrites; hydrocarbons; meteorites; Murchison Meteorite; organic compounds; organic materials; polycyclic aromatic hydrocarbons; stony meteorites DO - http://dx.doi.org/10.1016/0016-7037(93)90179-Z ER - TY - JOUR T1 - Ages of pristine noritic clasts from lunar breccias 15445 and 15455 AN - 50127541; 1993-007341 AB - Rb-Sr and Sm-Nd isotopic analyses are reported on these samples; the clasts include norites, anorthositic norite, troctolitic anorthosite and spinel troctolite. The Rb-Sr isotopic systems of some clasts were severely disturbed. Details of the ages and initial Nd isotopic compositions are presented for the clasts and some mineral separates. The ages of the Mg-suite noritic rocks show a wide range that includes the ages of ferroan anorthosites. Crystallization ages of the pristine Mg-suite norites range 4180- 4460 m.y. Processes of serial magmatism may have been significant in the formation of the lunar crust. JF - Geochimica et Cosmochimica Acta AU - Shih, C Y AU - Nyquist, L E AU - Dasch, E J AU - Bogard, D D AU - Bansal, B M AU - Wiesmann, H Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 915 EP - 931 PB - Pergamon, Oxford VL - 57 IS - 4 SN - 0016-7037, 0016-7037 KW - alkaline earth metals KW - breccia KW - impactites KW - Moon KW - isotopes KW - igneous rocks KW - lunar breccia KW - impact breccia KW - clasts KW - stable isotopes KW - Nd-144/Nd-143 KW - Sr-87/Sr-86 KW - plutonic rocks KW - geochronology KW - metals KW - metamorphic rocks KW - rare earths KW - gabbros KW - norite KW - neodymium KW - chemical ratios KW - strontium KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50127541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ages+of+pristine+noritic+clasts+from+lunar+breccias+15445+and+15455&rft.au=Shih%2C+C+Y%3BNyquist%2C+L+E%3BDasch%2C+E+J%3BBogard%2C+D+D%3BBansal%2C+B+M%3BWiesmann%2C+H&rft.aulast=Shih&rft.aufirst=C&rft.date=1993-02-01&rft.volume=57&rft.issue=4&rft.spage=915&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990178-Y 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 - 1993-01-01 N1 - Number of references - 83 N1 - Document feature - 5 tables, illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; breccia; chemical ratios; clasts; gabbros; geochronology; igneous rocks; impact breccia; impactites; isotopes; lunar breccia; metals; metamorphic rocks; Moon; Nd-144/Nd-143; neodymium; norite; plutonic rocks; rare earths; Sr-87/Sr-86; stable isotopes; strontium DO - http://dx.doi.org/10.1016/0016-7037(93)90178-Y ER - TY - JOUR T1 - The concentration and isotopic composition of carbon in basaltic glasses from the Juan de Fuca Ridge, Pacific Ocean AN - 50126828; 1993-007338 AB - Analyses of C and (super 13) C/ (super 12) C ratios are presented of basaltic glass from 20 locations along the ridge, using a 3-step combustion/extraction process. The results show a lack of correlation of delta (super 13) C and C concentration with depth, random populations of vesicles and a large range in calculated isotopic fractionations between vesicle and dissolved C between samples. There is no direct evidence that a wide range in delta (super 13) C values is due to source heterogeneity. The range in C amounts and delta (super 13) C can be explained by degassing such as Rayleigh-like degassing in which CO (sub 2) vapour exsolves but does not escape from the magma. JF - Geochimica et Cosmochimica Acta AU - Blank, Jennifer G AU - Delaney, John R AU - Des Marais, David J Y1 - 1993/02// PY - 1993 DA - February 1993 SP - 875 EP - 887 PB - Pergamon, Oxford VL - 57 IS - 4 SN - 0016-7037, 0016-7037 KW - East Pacific KW - volcanic rocks KW - Northeast Pacific KW - glasses KW - isotopes KW - igneous rocks KW - C-13/C-12 KW - equilibrium KW - stable isotopes KW - temperature KW - North Pacific KW - Juan de Fuca Ridge KW - carbon KW - Pacific Ocean KW - basaltic composition KW - chemical ratios KW - high temperature KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50126828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+concentration+and+isotopic+composition+of+carbon+in+basaltic+glasses+from+the+Juan+de+Fuca+Ridge%2C+Pacific+Ocean&rft.au=Blank%2C+Jennifer+G%3BDelaney%2C+John+R%3BDes+Marais%2C+David+J&rft.aulast=Blank&rft.aufirst=Jennifer&rft.date=1993-02-01&rft.volume=57&rft.issue=4&rft.spage=875&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2F0016-7037%2893%2990175-V 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 - 1993-01-01 N1 - Number of references - 76 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - basaltic composition; C-13/C-12; carbon; chemical ratios; East Pacific; equilibrium; glasses; high temperature; igneous rocks; isotopes; Juan de Fuca Ridge; North Pacific; Northeast Pacific; Pacific Ocean; stable isotopes; temperature; volcanic rocks DO - http://dx.doi.org/10.1016/0016-7037(93)90175-V ER - TY - MGZN T1 - Venus Revealed AN - 1302280500 AB - Piercing the thick sulfuric clouds of our sister planet, the Magellan spacecraft maps in unprecedented detail a superheated world of impact craters and lava flows. JF - National Geographic AU - Newcott, William AU - JPL Y1 - 1993/02/01/ PY - 1993 DA - 1993 Feb 01 SP - 36 CY - Washington PB - National Geographic Society VL - 183 IS - 2 KW - Geography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1302280500?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apio&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=National+Geographic&rft.atitle=Venus+Revealed&rft.au=Newcott%2C+William%3BJPL&rft.aulast=Newcott&rft.aufirst=William&rft.date=1993-02-01&rft.volume=183&rft.issue=2&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=National+Geographic&rft.issn=00279358&rft_id=info:doi/ DB - Periodicals Index Online N1 - Last updated - 2013-02-24 ER - TY - JOUR T1 - Isomerization reaction dynamics and equilibrium at the liquid-vapor interface of water. A molecular-dynamics study. AN - 76371491; 11539443 AB - The gauche-trans isomerization reaction of 1,2-dichloroethane at the liquid-vapor interface of water is studied using molecular-dynamics computer simulations. The solvent bulk and surface effects on the torsional potential of mean force and on barrier recrossing dynamics are computed. The isomerization reaction involves a large change in the electric dipole moment, and as a result the trans/gauche ratio is considerably affected by the transition from the bulk solvent to the surface. Reactive flux correlation function calculations of the reaction rate reveal that deviation from the transition-state theory due to barrier recrossing is greater at the surface than in the bulk water. This suggests that the system exhibits non-Rice-Ramsperger-Kassel-Marcus behavior due to the weak solvent-solute coupling at the water liquid-vapor interface. JF - The Journal of chemical physics AU - Benjamin, I AU - Pohorille, A AD - Department of Chemistry, University of California, Santa Cruz 95064, USA. Y1 - 1993/01/01/ PY - 1993 DA - 1993 Jan 01 SP - 236 EP - 242 VL - 98 IS - 1 SN - 0021-9606, 0021-9606 KW - Ethylene Dichlorides KW - 0 KW - Solvents KW - Water KW - 059QF0KO0R KW - Chlorine KW - 4R7X1O2820 KW - ethylene dichloride KW - 55163IJI47 KW - Carbon KW - 7440-44-0 KW - Space life sciences KW - NASA Discipline Exobiology KW - NASA Center ARC KW - Static Electricity KW - Models, Molecular KW - Chemistry, Physical KW - Chemical Phenomena KW - Isomerism KW - Models, Chemical KW - Molecular Conformation KW - Carbon -- chemistry KW - Chlorine -- chemistry KW - Solvents -- chemistry KW - Ethylene Dichlorides -- chemistry KW - Water -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76371491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+chemical+physics&rft.atitle=Isomerization+reaction+dynamics+and+equilibrium+at+the+liquid-vapor+interface+of+water.+A+molecular-dynamics+study.&rft.au=Benjamin%2C+I%3BPohorille%2C+A&rft.aulast=Benjamin&rft.aufirst=I&rft.date=1993-01-01&rft.volume=98&rft.issue=1&rft.spage=236&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+chemical+physics&rft.issn=00219606&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-02 N1 - Date created - 1997-08-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Fate of ultrahigh molecular weight polyethylene (UHMW-PE) wear debris in patients with hip implants. AN - 76368112; 11539273 AB - The process of ultrahigh molecular weight polyethylene (UHMW-PE) breakdown, started at the articular surface of the cup, continues in small fragments after generation. An assiduous interaction between the UHMW-PE particles and the host cells leads to oxidative changes of the UHMW-PE and to size reduction of the particles simultaneous with transporting them toward, and finally by, lymphatic or blood vessels. The particles are mobilized by means of enzymatic, extracellular matrix-degrading activity of cells that have phagocytosed them or adhered to them. Together, these characteristics indicate an attempt by the natural cellular immunity system to eliminate the implant wear debris. Macrophages are the main effector cells acting as scavengers; however, excessive amount of the wear debris evokes phagocytic activity of cells other than macrophages as well. JF - Techniques orthopediques AU - Witkiewicz, H AU - Vidovszky, T AU - Turner, R T AU - Rock, M G AU - Morrey, B F AU - Bolander, M E AD - Department of Orthopedics, Mayo Clinic, Rochester, MN, 55905, USA. Y1 - 1993 PY - 1993 DA - 1993 SP - 254 EP - 261 VL - 8 IS - 4 SN - 0397-3999, 0397-3999 KW - Alloys KW - 0 KW - Biocompatible Materials KW - Polyethylenes KW - Space life sciences KW - Oxidation-Reduction KW - Fibroblasts -- immunology KW - Alloys -- therapeutic use KW - Macrophages -- immunology KW - Bone and Bones -- physiopathology KW - Humans KW - Macrophage Activation KW - Alloys -- adverse effects KW - Time Factors KW - Foreign-Body Migration -- pathology KW - Microscopy, Electron, Scanning KW - Bone and Bones -- immunology KW - Bone and Bones -- cytology KW - Prosthesis Failure KW - Polyethylenes -- adverse effects KW - Biocompatible Materials -- adverse effects KW - Phagocytosis -- immunology KW - Polyethylenes -- therapeutic use KW - Hip Prosthesis -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76368112?accountid=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=Techniques+orthopediques&rft.atitle=Fate+of+ultrahigh+molecular+weight+polyethylene+%28UHMW-PE%29+wear+debris+in+patients+with+hip+implants.&rft.au=Witkiewicz%2C+H%3BVidovszky%2C+T%3BTurner%2C+R+T%3BRock%2C+M+G%3BMorrey%2C+B+F%3BBolander%2C+M+E&rft.aulast=Witkiewicz&rft.aufirst=H&rft.date=1993-01-01&rft.volume=8&rft.issue=4&rft.spage=254&rft.isbn=&rft.btitle=&rft.title=Techniques+orthopediques&rft.issn=03973999&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-04-01 N1 - Date created - 1997-04-01 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Nuclear fragmentation models and uncertainties in cosmic ray transport and radiobiology studies. AN - 76367358; 11538207 JF - Radioprotection AU - Cucinotta, F A AU - Wilson, J W AU - Townsend, L W AU - Shinn, J L Y1 - 1993 PY - 1993 DA - 1993 SP - 183 EP - 188 VL - 28 IS - 2 SN - 0033-8451, 0033-8451 KW - Space life sciences KW - NASA Discipline Radiation Health KW - Relative Biological Effectiveness KW - Nuclear Physics KW - Humans KW - Dose-Response Relationship, Radiation KW - Mutation KW - Linear Energy Transfer KW - Cosmic Radiation KW - Models, Biological KW - Radiobiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76367358?accountid=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=Radioprotection&rft.atitle=Nuclear+fragmentation+models+and+uncertainties+in+cosmic+ray+transport+and+radiobiology+studies.&rft.au=Cucinotta%2C+F+A%3BWilson%2C+J+W%3BTownsend%2C+L+W%3BShinn%2C+J+L&rft.aulast=Cucinotta&rft.aufirst=F&rft.date=1993-01-01&rft.volume=28&rft.issue=2&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Radioprotection&rft.issn=00338451&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-05-17 N1 - Date created - 1998-05-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A prototype stable RNA identification cassette for monitoring plasmids of genetically engineered microorganisms. AN - 76367349; 11539559 AB - A prototype stable RNA identification cassette for monitoring genetically engineered plasmids carried by strains of Escherichia coli has been developed. The cassette consists of a Vibrio proteolyticus 5S ribosomal RNA (rRNA) gene surrounded by promoters and terminators from the rrnB operon of Escherischia coli. The identifier RNA is expressed and successfully processed so that approximately 30% of the 5S rRNA isolated from either whole cells or 70S ribosomes is of the V. proteolyticus type. Cells carrying the identifier are readily detectable by hybridization. Accurate measurements show that the identification cassette has little effect on fitness compared to a strain containing an analogous plasmid carrying wild type E. coli 5S rRNA, and the V. proteolyticus 5S rRNA gene is not inactivated after prolonged growth. These results demonstrate the feasibility of developing small standardized identification cassettes that can utilize already existing highly sensitive rRNA detection methods. Cassettes of this type could in principle be incorporated into either the engineered regions of recombinant plasmids or their hosts. JF - Systematic and applied microbiology AU - Hedenstierna, K O AU - Lee, Y H AU - Yang, Y AU - Fox, G E AD - Department of Biochemical and Biophysical Sciences, University of Houston, TX 77204-5934, USA. Y1 - 1993 PY - 1993 DA - 1993 SP - 280 EP - 286 VL - 16 SN - 0723-2020, 0723-2020 KW - RNA, Bacterial KW - 0 KW - RNA, Ribosomal, 5S KW - Space life sciences KW - NASA Discipline Exobiology KW - Non-NASA Center KW - Base Sequence KW - Molecular Sequence Data KW - Nucleic Acid Hybridization KW - Nucleic Acid Conformation KW - Environmental Monitoring -- methods KW - Environmental Microbiology KW - Vibrio -- genetics KW - Plasmids -- genetics KW - Genetic Engineering KW - RNA, Ribosomal, 5S -- genetics KW - Escherichia coli -- genetics KW - RNA, Bacterial -- genetics KW - Escherichia coli -- growth & development KW - Vibrio -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76367349?accountid=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=Systematic+and+applied+microbiology&rft.atitle=A+prototype+stable+RNA+identification+cassette+for+monitoring+plasmids+of+genetically+engineered+microorganisms.&rft.au=Hedenstierna%2C+K+O%3BLee%2C+Y+H%3BYang%2C+Y%3BFox%2C+G+E&rft.aulast=Hedenstierna&rft.aufirst=K&rft.date=1993-01-01&rft.volume=16&rft.issue=&rft.spage=280&rft.isbn=&rft.btitle=&rft.title=Systematic+and+applied+microbiology&rft.issn=07232020&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-08-31 N1 - Date created - 1997-08-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mechanosensory calcium-selective cation channels in epidermal cells. AN - 76365064; 11538185 AB - This paper explores the properties and likely functions of an epidermal Ca(2+)-selective cation channel complex activated by tension. As many as eight or nine linked or linkable equivalent conductance units or co-channels can open together. Open time for co-channel quadruplets and quintuplets tends to be relatively long with millimolar Mg2+ (but not millimolar Ca2+) at the cytosolic face of excised plasma membrane. Sensitivity to tension is regulated by transmembrane voltage and temperature. Under some circumstances channel activity is sychronized in rhythmic pulses. Certain lanthanides and a cytoskeleton-disturbing herbicide that inhibit gravitropic reception act on the channel system at low concentrations. Specifically, ethyl-N-phenylcarbamate promotes tension-dependent activity at micromolar levels. With moderate suction, Gd3+ provided at about 0.5 micromole at the extracellular face of the membrane promotes for several seconds but may then become inhibitory. Provision at 1-2 micromoles promotes and subsequently inhibits more vigorously (often abruptly and totally), and at high levels inhibits immediately. La3+, a poor gravitropic inhibitor, acts similarly but much more gradually and only at much higher concentrations. These properties, particularly these susceptibilities to modulation, indicate that in vivo the mechanosensitive channel must be mechanosensory and mechanoregulatory. It could serve to transduce the shear forces generated in the integrated wall-membrane-cytoskeleton system during turgor changes and cell expansion as well as transducing the stresses induced by gravity, touch and flexure. In so far as such transduction is modulated by voltage and temperature, the channels would also be sensors for these modalities as long as the wall-membrane-cytoskeleton system experiences mechanical stress. JF - The Plant journal : for cell and molecular biology AU - Ding, J P AU - Pickard, B G AD - Biology Department, Washington University, Saint Louis, MO 63130-4899, USA. Y1 - 1993 PY - 1993 DA - 1993 SP - 83 EP - 110 VL - 3 IS - 1 SN - 0960-7412, 0960-7412 KW - Calcium Channels KW - 0 KW - Carbamates KW - Herbicides KW - Phenylcarbamates KW - Urethane KW - 3IN71E75Z5 KW - Lanthanum KW - 6I3K30563S KW - Gadolinium KW - AU0V1LM3JT KW - phenylurethane KW - TWP7W286IF KW - Space life sciences KW - NASA Discipline Plant Biology KW - Non-NASA Center KW - NASA Program Space Biology KW - NASA Discipline Number 40-50 KW - Gadolinium -- pharmacology KW - Carbamates -- pharmacology KW - Herbicides -- pharmacology KW - Stress, Mechanical KW - Lanthanum -- pharmacology KW - Temperature KW - Membrane Potentials -- physiology KW - Cell Membrane -- chemistry KW - Cytoskeleton -- physiology KW - Electrophysiology KW - Cell Membrane -- physiology KW - Signal Transduction -- physiology KW - Calcium Channels -- physiology KW - Calcium Channels -- drug effects KW - Allium -- physiology KW - Calcium Channels -- analysis KW - Allium -- cytology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76365064?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Plant+journal+%3A+for+cell+and+molecular+biology&rft.atitle=Mechanosensory+calcium-selective+cation+channels+in+epidermal+cells.&rft.au=Ding%2C+J+P%3BPickard%2C+B+G&rft.aulast=Ding&rft.aufirst=J&rft.date=1993-01-01&rft.volume=3&rft.issue=1&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=The+Plant+journal+%3A+for+cell+and+molecular+biology&rft.issn=09607412&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-05 N1 - Date created - 1995-06-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Preliminary observations on the effects of selenate on the development of the embryonic skate, Raja eglanteria. AN - 76361885; 11539114 AB - Morphogenesis of the clearnose skate, Raja eglanteria, was not significantly inhibited as a result of 7 days of exposure to 1-2 mM selenate in the sea water during Days 59-69 of embryonic development (hatching would normally have occurred at 82 +/- 4 days of incubation). Although corneal transparency appeared normal in the eye, preliminary measurements of the thickness of Bowman's layer of the cornea suggested that it was significantly thinner in the corneas of embryos exposed to 1-2 mM selenate. Selenate is an ion reported to inhibit sulfation of glycosaminoglycans in connective tissue. JF - Transactions of the Kansas Academy of Science. Kansas Academy of Science AU - Conrad, G W AU - Luer, C A AU - Paulsen, A Q AU - Funderburgh, J L AD - Mount Desert Island Biological Laboratory, Salsbury Cove, Maine 04672. Y1 - 1993 PY - 1993 DA - 1993 SP - 62 EP - 68 VL - 96 IS - 1-2 SN - 0022-8443, 0022-8443 KW - Selenium Compounds KW - 0 KW - Selenic Acid KW - HV0Y51NC4J KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Developmental Biology KW - NASA Program NSCORT KW - Non-NASA Center KW - Animals KW - Embryo, Nonmammalian -- abnormalities KW - Embryo, Nonmammalian -- drug effects KW - Cornea -- abnormalities KW - Cornea -- ultrastructure KW - Connective Tissue -- abnormalities KW - Selenium Compounds -- adverse effects KW - Skates (Fish) -- embryology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76361885?accountid=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=Transactions+of+the+Kansas+Academy+of+Science.+Kansas+Academy+of+Science&rft.atitle=Preliminary+observations+on+the+effects+of+selenate+on+the+development+of+the+embryonic+skate%2C+Raja+eglanteria.&rft.au=Conrad%2C+G+W%3BLuer%2C+C+A%3BPaulsen%2C+A+Q%3BFunderburgh%2C+J+L&rft.aulast=Conrad&rft.aufirst=G&rft.date=1993-01-01&rft.volume=96&rft.issue=1-2&rft.spage=62&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+Kansas+Academy+of+Science.+Kansas+Academy+of+Science&rft.issn=00228443&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-06 N1 - Date created - 1995-06-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Risk from relativistic heavy ions on manned space missions. AN - 76361536; 11538206 AB - The risk from exposure to radiation posed to space travelers outside the magnetic shielding provided by the geomagnetosphere will come from two sources: the slowly varying but low intensity high-energy galactic cosmic rays and the more intense predominantly low-energy protons from large solar particle events associated with magnetic disturbances originating sporadically on or within the solar surface during the active period of the 11-year solar cycle. The energy spectra of the protons in solar particle events are quite soft, with large numbers of low-energy protons and a rather steep decrease of the energy spectra with increasing energy. This allows for the possibility to provide, within the space vehicle or habitat, a well-shielded area sometimes called a "storm shelter" or "safe haven" where the travelers could gather during the largest particle events. Intensity risetimes on the order of half an hour or more and overall event durations of 1 to 2 days would make actively seeking a well-shielded shelter for the duration a distinct possibility. The high-energy and penetrating nature and relative constancy of the galactic cosmic rays, on the other hand, do not allow the use of highly shielded areas as a means of protection against them. The first question to answer becomes: what is the risk to human health from the galactic cosmic rays? We need to have a good idea of the answer to this question before we can address the problem of how to best protect human health or, indeed, whether any specific measures need to be taken. JF - Radioprotection AU - Curtis, S B AD - Lawrence Berkeley Laboratory, University of California, Berkeley 94720, USA. Y1 - 1993 PY - 1993 DA - 1993 SP - 179 EP - 181 VL - 28 IS - 2 SN - 0033-8451, 0033-8451 KW - Ions KW - 0 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Radiation Health KW - NASA Program NSCORT KW - NASA Discipline Number 04-10 KW - NASA Program Radiation Health KW - Non-NASA Center KW - Moon KW - Humans KW - Solar System KW - Mars KW - Dose-Response Relationship, Radiation KW - Time Factors KW - Risk Assessment KW - Space Flight KW - Linear Energy Transfer KW - Cosmic Radiation -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76361536?accountid=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=Radioprotection&rft.atitle=Risk+from+relativistic+heavy+ions+on+manned+space+missions.&rft.au=Curtis%2C+S+B&rft.aulast=Curtis&rft.aufirst=S&rft.date=1993-01-01&rft.volume=28&rft.issue=2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Radioprotection&rft.issn=00338451&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-10-05 N1 - Date created - 1995-10-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Chlorine injury and the comparative performance of Colisure (TM), ColiLert (TM) and ColiQuik (TM) for the enumeration of coliform bacteria and E.coli in drinking water. AN - 76361167; 11537608 AB - Several factors have stimulated interest in recently developed substrate specific media for the detection of coliform bacteria in water. This study compared the performance of Colisure (TM) (Millipore), ColiLert (TM) (Environetics) and ColiQuick (TM) (Hach) with accepted membrane filtration and MPN methodologies for the enumeration of total coliforms and E. coli in chlorinated water. The performance of all three media was compared, in MPN configuration, with LTB/MPN (confirmed) using a variety of drinking and source water samples, both with and without chlorination. The Cochran-Mantel-Haenszel test yielded statistical correlations between results obtained with each of the three new enzyme detection media and accepted reference methods for the detection of low numbers of total coliforms. Another series of tests compared the performance of Colisure with accepted methods (LTB/MPN confirmed with BGLB and EC-MUG) in the detection of total coliforms and E. coli in sewage-spiked samples simulating contaminated drinking water, using an USEPA/AWWA test protocol. The results demonstrated that Colisure detected these indicator bacteria with greater sensitivity than the accepted methods and that this difference increased between 24 and 28 hours of incubation. The results of this study collectively support the validity of the new enzyme detection method for the detection of low levels of coliform bacteria and E. coli in source water and contaminated drinking water. JF - Water science and technology : a journal of the International Association on Water Pollution Research AU - McFeters, G A AU - Pyle, B H AU - Gillis, S J AU - Acomb, C J AU - Ferrazza, D AD - Department of Microbiology, Montana State University, Bozeman 59717. Y1 - 1993 PY - 1993 DA - 1993 SP - 261 EP - 265 VL - 27 IS - 3-4 SN - 0273-1223, 0273-1223 KW - Sewage KW - 0 KW - Water KW - 059QF0KO0R KW - Chlorine KW - 4R7X1O2820 KW - Space life sciences KW - Sewage -- analysis KW - Filtration -- methods KW - Clinical Enzyme Tests KW - Filtration -- instrumentation KW - Time Factors KW - Water -- analysis KW - Water Microbiology -- standards KW - Enterobacteriaceae -- isolation & purification KW - Escherichia coli -- isolation & purification KW - Chlorine -- adverse effects KW - Escherichia coli -- enzymology KW - Enterobacteriaceae -- enzymology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76361167?accountid=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=Water+science+and+technology+%3A+a+journal+of+the+International+Association+on+Water+Pollution+Research&rft.atitle=Chlorine+injury+and+the+comparative+performance+of+Colisure+%28TM%29%2C+ColiLert+%28TM%29+and+ColiQuik+%28TM%29+for+the+enumeration+of+coliform+bacteria+and+E.coli+in+drinking+water.&rft.au=McFeters%2C+G+A%3BPyle%2C+B+H%3BGillis%2C+S+J%3BAcomb%2C+C+J%3BFerrazza%2C+D&rft.aulast=McFeters&rft.aufirst=G&rft.date=1993-01-01&rft.volume=27&rft.issue=3-4&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Water+science+and+technology+%3A+a+journal+of+the+International+Association+on+Water+Pollution+Research&rft.issn=02731223&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-05-10 N1 - Date created - 1995-05-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Teratogenic effects of delta g: the concept of allometric growth. AN - 76360211; 11537425 JF - The Physiologist AU - Duke, P J AU - Montufar-Solis, D AU - Daane, E AD - The University of Texas Health Science Center, Orthodontics Department, Houston 77225. Y1 - 1993 PY - 1993 DA - 1993 SP - S34 EP - S37 VL - 36 IS - 1 Suppl SN - 0031-9376, 0031-9376 KW - Space life sciences KW - NASA Program Flight KW - NASA Discipline Developmental Biology KW - NASA Discipline Number 00-00 KW - Non-NASA Center KW - Rats KW - Fetus KW - Centrifugation -- adverse effects KW - Animals KW - Chick Embryo KW - Tibia -- abnormalities KW - Mice KW - Tibia -- growth & development KW - Hypergravity -- adverse effects KW - Bone and Bones -- abnormalities KW - Bone Development -- physiology KW - Embryonic and Fetal Development -- physiology KW - Bone and Bones -- embryology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/76360211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Physiologist&rft.atitle=Teratogenic+effects+of+delta+g%3A+the+concept+of+allometric+growth.&rft.au=Duke%2C+P+J%3BMontufar-Solis%2C+D%3BDaane%2C+E&rft.aulast=Duke&rft.aufirst=P&rft.date=1993-01-01&rft.volume=36&rft.issue=1+Suppl&rft.spage=S34&rft.isbn=&rft.btitle=&rft.title=The+Physiologist&rft.issn=00319376&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-06-16 N1 - Date created - 1995-06-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Temporal analysis of the October 1989 proton flare using computerized anatomical models. AN - 75585815; 8381975 AB - The GOES-7 time history data of hourly averaged integral proton fluxes at various particle kinetic energies are analyzed for the solar proton event that occurred between October 19 and 29, 1989. By analyzing the time history data, the dose rates which may vary over many orders of magnitude in the early phases of the flare can be estimated as well as the cumulative dose as a function of time. Basic transport calculations are coupled with detailed body organ thickness distributions from computerized anatomical models to estimate dose rates and cumulative doses to 20 critical body organs. For a 5-cm-thick water shield, cumulative skin, eye, and blood-forming-organ dose equivalents of 1.27, 1.23, and 0.41 Sv, respectively, are estimated. These results are approximately 40-50% less than the widely used 0- and 5-cm slab dose estimates. The risk of cancer incidence and mortality are also estimated for astronauts protected by various water shield thicknesses. JF - Radiation research AU - Simonsen, L C AU - Cucinotta, F A AU - Atwell, W AU - Nealy, J E AD - NASA Langley Research Center, Hampton, Virginia 23665. Y1 - 1993/01// PY - 1993 DA - January 1993 SP - 1 EP - 11 VL - 133 IS - 1 SN - 0033-7587, 0033-7587 KW - Protons KW - 0 KW - Index Medicus KW - Space life sciences KW - NASA Discipline Radiation Health KW - unmanned KW - Flight Experiment KW - NASA Center LaRC KW - GOES Project KW - Risk KW - Radiation Dosage KW - Humans KW - Time Factors KW - Models, Anatomic KW - Neoplasms, Radiation-Induced -- etiology KW - Space Flight KW - Sunlight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/75585815?accountid=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=Temporal+analysis+of+the+October+1989+proton+flare+using+computerized+anatomical+models.&rft.au=Simonsen%2C+L+C%3BCucinotta%2C+F+A%3BAtwell%2C+W%3BNealy%2C+J+E&rft.aulast=Simonsen&rft.aufirst=L&rft.date=1993-01-01&rft.volume=133&rft.issue=1&rft.spage=1&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 - 1993-03-17 N1 - Date created - 1993-03-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - NASA evaluates automated inspection systems AN - 745658260; 123182 AB - Suppliers of automated inspection (AI) systems say their systems offer relief from the labor-intensive and often subjective manual inspection of solder joints in high-volume PCB production runs. Therefore, at NASA's Goddard Space Flight Center, the authors evaluated six AI systems to determine if they were suitable for inspecting NASA's high-reliability PCBs. The authors found that the advantages offered by AI systems in high-volume/low-mix applications do not apply to NASA's low-volume/high-mix PCB applications. The long setup and test times required for these systems cannot be justified for NASA's short production runs. AI systems were incapable of identifying critical defects in many situations where a human inspector could readily identify them. Yet, an AI system can uncover hidden defects, which is essential for meeting NASA's quality standards. It was therefore concluded that an AI system could supplement -- not replace -- manual inspection for NASA's low-volume, high-reliability surface-mount solder joints. JF - Test & Measurement World AU - Savage, Robert M AU - Fan, Mark S AU - Park, Hyun Soo AD - NASA Goddard Flight Cent, Lanham, MD, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 4 VL - 13 IS - 12 SN - 0744-1657, 0744-1657 KW - Automated inspection systems KW - Automated optical inspection KW - Automation KW - Efficiency KW - Infrared detectors KW - Inspection KW - Laser beam effects KW - Laser imaging KW - Laser infrared inspection KW - Leadless chip carriers KW - Military applications KW - Nondestructive examination KW - Printed surface board inspection KW - Soldered joints KW - Surface mount devices KW - Surface mount technology KW - Ultrasonic imaging KW - X ray analysis KW - X ray laminography KW - X ray radiography KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 714.2:SEMICONDUCTOR DEVICES AND INTEGRATED CIRCUITS KW - W4 913.3.1:INSPECTION KW - W4 404.1:MILITARY ENGINEERING KW - W4 753.3:ULTRASONIC APPLICATIONS KW - W4 538.1.1:SOLDERING KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745658260?accountid=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=Test+%26+Measurement+World&rft.atitle=NASA+evaluates+automated+inspection+systems&rft.au=Savage%2C+Robert+M%3BFan%2C+Mark+S%3BPark%2C+Hyun+Soo&rft.aulast=Savage&rft.aufirst=Robert&rft.date=1993-01-01&rft.volume=13&rft.issue=12&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=Test+%26+Measurement+World&rft.issn=07441657&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Automation ER - TY - BOOK T1 - Texture analysis of digitized prostate pathologic cross section. AN - 745652569; 79584 AB - Understanding the texture attributes of prostate cancer lesions and identifying corresponding features on the ultrasound images (transrectal ultrasound images of the prostate) has been the aim of present investigation. Prostate glands, surgically removed through prostatectomy, are provided as serial whole mount cross-sections at 4 mm intervals from base to apex of the gland. Digitized images of these whole mount cross-sections are obtained using a photographic capture procedure for the present study. Texture analyses of these digitized image planes have been conducted for classification of each cross-section into benign and cancer regions through a supervised classification scheme. Preliminary results of supervised maximum likelihood classification of these 512 x 512 images in a 9 x 9 pixel window size are presented. JF - SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, BELLINGHAM, WA (USA). Vol. 1898, pp. 465-470. 1993. AU - Pitts, David E AU - Premkumar, Saganti B AU - Houston, A G AU - Babaian, Richard J AU - Troncoso, Patricia Y1 - 1993 PY - 1993 DA - 1993 SP - 6 EP - 470 PB - SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, BELLINGHAM, WA (USA) KW - Digital techniques KW - Image processing KW - Imaging techniques KW - Medical imaging KW - Oncology KW - Pathology KW - Prostate KW - Surgery KW - Textures KW - Ultrasonic applications KW - X ray radiography KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 461.6:MEDICINE KW - W4 741.3:OPTICAL DEVICES AND SYSTEMS KW - W4 723.5:COMPUTER APPLICATIONS KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745652569?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Pitts%2C+David+E%3BPremkumar%2C+Saganti+B%3BHouston%2C+A+G%3BBabaian%2C+Richard+J%3BTroncoso%2C+Patricia&rft.aulast=Pitts&rft.aufirst=David&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=465&rft.isbn=&rft.btitle=Texture+analysis+of+digitized+prostate+pathologic+cross+section.&rft.title=Texture+analysis+of+digitized+prostate+pathologic+cross+section.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Relationship of leaf spectral reflectance to chloroplast water content determined using NMR microscopy AN - 745651878; 92667 AB - Nuclear magnetic resonance (NMR) microscopy and reflectance spectroscopy were used to evaluate the response of leaf spectral reflectance to chloroplast relative water content (RWC). For sun and shade leaves of maple (Acer platanoides L. var Emerald Queen), NMR determined the distribution of water through the leaf thickness and changes in distribution as leaves dried from 100% RWC to approximately 70%, 50%, and 30% RWC. Chloroplast water could be resolved only in shade leaves. Leaf and chloroplast RWC were similar at leaf RWC of 80% or greater, but chloroplast RWC was as much as 12% greater than leaf RWC when leaf RWC decreased below 50%. In contrast, the RWC of nonchloroplast water compartments was as much as 12% less than leaf RWC. Reflectance responses to leaf water content were greatest in the water absorption bands near 1450 nm, 1950 nm, and 2500 nm wavelengths, and were minimal in the near-infrared from approximately 760-1300 nm. In the 400-760 nm (visible) range, reflectance sensitivity increased substantially as chloroplast RWC decreased. Peak visible reflectance sensitivity occurred near 695 nm and 670 nm for adaxial and abaxial surfaces, respectively, and was more closely related to chloroplast than to nonchloroplast or whole leaf RWC. JF - Remote Sensing of Environment AU - Carter, Gregory A AU - McCain, Douglas C AD - NASA, Stennis Space Cent, MS, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 305 EP - 310 VL - 46 IS - 3 SN - 0034-4257, 0034-4257 KW - Chloroplast water content KW - Leaf spectral reflectance KW - Microscopic examination KW - Plants (botany) KW - Reflectometers KW - Water absorption KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Physiology KW - Nuclear magnetic resonance KW - W4 461.9:BIOLOGY KW - W4 931.2:PHYSICAL PROPERTIES OF GASES, LIQUIDS AND SOLIDS KW - W4 802.3:CHEMICAL OPERATIONS KW - W4 732.2:CONTROL INSTRUMENTATION KW - W 30965:Miscellaneous, Reviews KW - W4 941.3:OPTICAL INSTRUMENTS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745651878?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Relationship+of+leaf+spectral+reflectance+to+chloroplast+water+content+determined+using+NMR+microscopy&rft.au=Carter%2C+Gregory+A%3BMcCain%2C+Douglas+C&rft.aulast=Carter&rft.aufirst=Gregory&rft.date=1993-01-01&rft.volume=46&rft.issue=3&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Physiology; Nuclear magnetic resonance ER - TY - BOOK T1 - Space simulation in the neutral buoyancy test facility. AN - 745651692; 80898 AB - Various methods have been used to simulate reduced gravity environments for space systems research and development. Neutral buoyancy has been the most universally used simulation of zero-g. This paper describes the facilities, personnel and experimental work that are associated with the Neutral Buoyancy Test Facility (NBTF) at NASA Ames Research Center (ARC). This facility provides a unique underwater environment for the researcher to simulate reduced gravity activities and evaluate the performance of space-related equipment. The NBTF's small size gives it several advantages over larger water facilities. First, a smaller crew ensures a lower overhead. Second, the facility is used for research purposes only, eliminating any scheduling conflicts with astronaut training. Lastly, the small volume of water allows the researcher to more easily vary the water temperature. This feature is ideal for investigations of astronaut thermal comfort and regulation. Recent investigations have used the NBTF for reduced gravity simulation of locomotion and load-carrying, among other interesting research endeavors. JF - SAE, WARRENDALE, PA (USA). 1993. AU - Luna, Bernadette AU - Lomax, Curtis W AU - Smith, Douglas D Y1 - 1993 PY - 1993 DA - 1993 PB - SAE, WARRENDALE, PA (USA) KW - Astronaut thermal comfort KW - Computer simulation KW - Ergonomics KW - Gravitation KW - Neutral buoyancy test facility KW - Personnel training KW - Space simulators KW - Underwater environment KW - Zero g simulation KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Mechanical Engineering Abstracts (ISMEC) KW - W 30965:Miscellaneous, Reviews KW - W4 656.2:SPACE RESEARCH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745651692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Luna%2C+Bernadette%3BLomax%2C+Curtis+W%3BSmith%2C+Douglas+D&rft.aulast=Luna&rft.aufirst=Bernadette&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Space+simulation+in+the+neutral+buoyancy+test+facility.&rft.title=Space+simulation+in+the+neutral+buoyancy+test+facility.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - BOOK T1 - Advanced composites characterization with x-ray technologies. AN - 745651374; 86379 AB - Recognizing the critical need to advance new composites for the aeronautics and aerospace industries, we are focussing on advanced test methods that are vital to successful modeling and manufacturing of future generations of high temperature and durable composite materials. These newly developed composites are necessary to reduce propulsion cost and weight, to improve performance and reliability, and to address longer-term national strategic thrusts for sustaining global preeminence in high speed air transport and in high performance military aircraft. JF - SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, BELLINGHAM, WA (USA). Vol. 2009, pp. 216-228. 1993. AU - Baaklini, George Y Y1 - 1993 PY - 1993 DA - 1993 SP - 13 EP - 228 PB - SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, BELLINGHAM, WA (USA) KW - Advanced composites KW - Ceramic materials KW - Characterization KW - Composite materials KW - Computerized tomography KW - Laminated ceramic matrix composites KW - Nondestructive examination KW - X ray computerized tomography KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 812.1:CERAMICS KW - W4 931.2:PHYSICAL PROPERTIES OF GASES, LIQUIDS AND SOLIDS KW - W4 422.2:TEST METHODS KW - W4 742.1:PHOTOGRAPHY KW - W4 723.5:COMPUTER APPLICATIONS KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745651374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Baaklini%2C+George+Y&rft.aulast=Baaklini&rft.aufirst=George&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=216&rft.isbn=&rft.btitle=Advanced+composites+characterization+with+x-ray+technologies.&rft.title=Advanced+composites+characterization+with+x-ray+technologies.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - BOOK T1 - Neural networks for calibration tomography. AN - 745651248; 86969 AB - Artificial neural networks are suitable for performing pattern-to-pattern calibrations. These calibrations are potentially useful for facilities operations in aeronautics, the control of optical alignment, and the like. This paper compares computed tomography with neural net calibration tomography for estimating density from its x-ray transform. X-ray transforms are measured, for example, in diffuse-illumination, holographic interferometry of fluids. Computed tomography and neural net calibration tomography are shown to have comparable performance for a 10 degree viewing cone and 29 interferograms within that cone. The system of tomography discussed is proposed as a relevant test of neural networks and other parallel processors intended for using flow visualization data. JF - SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, BELLINGHAM, WA (USA). Vol. 2005, pp. 562-569. 1993. AU - Decker, Arthur J Y1 - 1993 PY - 1993 DA - 1993 SP - 8 EP - 569 PB - SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, BELLINGHAM, WA (USA) KW - Artificial neural networks KW - Calibration KW - Calibration tomography KW - Computed tomography KW - Flow visualization KW - Fluid dynamics KW - Holographic interferometry KW - Interferometry KW - Parallel processors KW - Pattern recognition KW - X rays KW - X-ray transforms KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Neural networks KW - W4 931.1:MECHANICS KW - W4 932.1:HIGH ENERGY PHYSICS KW - W4 741.3:OPTICAL DEVICES AND SYSTEMS KW - W4 743.1:HOLOGRAPHIC TECHNIQUES KW - W 30965:Miscellaneous, Reviews KW - W4 631.1:FLUID FLOW (GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745651248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Decker%2C+Arthur+J&rft.aulast=Decker&rft.aufirst=Arthur&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=562&rft.isbn=&rft.btitle=Neural+networks+for+calibration+tomography.&rft.title=Neural+networks+for+calibration+tomography.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 ER - TY - GEN T1 - Beyond Earth's Boundaries AN - 62777907; ED361202 AB - This resource for teachers of elementary age students provides a foundation for building a life-long interest in the U.S. space program. It begins with a basic understanding of man's attempt to conquer the air, then moves on to how we expanded into near-Earth space for our benefit. Students learn, through hands-on experiences, from projects performed within the atmosphere and others simulated in space. Major sections include: (1) Aeronautics, (2) Our Galaxy, (3) Propulsion Systems, and (4) Living in Space. The appendixes include a list of aerospace objectives, K-12; descriptions of spin-off technologies; a list of educational programs offered at the Kennedy Space Center (Florida); and photographs. (PR) Y1 - 1993 PY - 1993 DA - 1993 SP - 214 KW - Astronauts KW - Space Shuttle KW - Space Travel KW - ERIC, Resources in Education (RIE) KW - Elementary Education KW - Aerospace Education KW - Physics KW - Elementary School Students KW - Earth Science KW - Scientific Concepts KW - Science Instruction KW - Astronomy KW - Elementary School Teachers KW - Elementary School Science KW - Science Activities KW - Science History KW - Resource Materials KW - Space Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62777907?accountid=14244 LA - English DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - Last updated - 2014-03-21 ER - TY - GEN T1 - La Misteriosa Atmosfera de la Tierra. Atlas: Guia de Instruccion con Actividades. (The Mysterious Atmosphere of the Earth. Atlas: Teaching Guide with Activities). AN - 62536334; ED407221 AB - This guide provides students with experiences similar to those found in a space laboratory such as the space shuttle. The activities are geared towards recycling, developing the perspective of a conservationist, taking action on a personal level that contributes to a healthy atmosphere, and preparing informed citizens that are capable of making thoughtful decisions about environmental issues. Background material is provided about exploration of the sun, the earth's atmosphere, and the interaction between the two systems. A chronology of the ATLAS mission is included with a rationale provided for the pursuit of space exploration. (DDR) Y1 - 1993 PY - 1993 DA - 1993 SP - 28 PB - NASA, Education Division, Mail Code FET, Washington, DC 20546-0001. KW - National Aeronautics and Space Administration KW - ERIC, Resources in Education (RIE) KW - Educational Strategies KW - Elementary Education KW - Spanish KW - Foreign Language Books KW - Science Activities KW - Simulation KW - Space Exploration KW - Solar System KW - Science Instruction KW - Space Sciences KW - Futures (of Society) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/62536334?accountid=14244 LA - Spanish DB - ERIC N1 - Availability - Level 1 - Available online, if indexed January 1993 onward N1 - SuppNotes - For a related guide in English, see ED 361 167. N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Radiocarbon ages of lacustrine deposits in volcanic sequences of the Lomas Coloradas area, Socorro Island, Mexico AN - 52867939; 1996-028020 JF - Radiocarbon AU - Farmer, Jack D AU - Farmer, Maria C AU - Berger, Rainer Y1 - 1993 PY - 1993 DA - 1993 SP - 253 EP - 262 PB - American Journal of Science, New Haven, CT VL - 35 IS - 2 SN - 0033-8222, 0033-8222 KW - volcanic rocks KW - Revillagigedo Archipelago KW - Socorro Island KW - isotopes KW - igneous rocks KW - Colima Mexico KW - Holocene KW - Cenozoic KW - radioactive isotopes KW - Lomas Coloradas KW - dates KW - volcanism KW - carbon KW - absolute age KW - depositional environment KW - Quaternary KW - lava flows KW - middle Holocene KW - sedimentation KW - volcanology KW - volcanic risk KW - Mexico KW - lacustrine environment KW - volcanoes KW - C-14 KW - Cerro Evermann KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52867939?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Radiocarbon+ages+of+lacustrine+deposits+in+volcanic+sequences+of+the+Lomas+Coloradas+area%2C+Socorro+Island%2C+Mexico&rft.au=Farmer%2C+Jack+D%3BFarmer%2C+Maria+C%3BBerger%2C+Rainer&rft.aulast=Farmer&rft.aufirst=Jack&rft.date=1993-01-01&rft.volume=35&rft.issue=2&rft.spage=253&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 - 1996-01-01 N1 - Number of references - 30 N1 - PubXState - CT N1 - Document feature - illus. incl. sect., geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - RACAAT N1 - SubjectsTermNotLitGenreText - absolute age; C-14; carbon; Cenozoic; Cerro Evermann; Colima Mexico; dates; depositional environment; Holocene; igneous rocks; isotopes; lacustrine environment; lava flows; Lomas Coloradas; Mexico; middle Holocene; Quaternary; radioactive isotopes; Revillagigedo Archipelago; sedimentation; Socorro Island; volcanic risk; volcanic rocks; volcanism; volcanoes; volcanology ER - TY - JOUR T1 - Laser extraction of carbon and oxygen as CO (sub 2) from carbonates; factors affecting isotopic composition AN - 52803579; 1996-068164 JF - Terra Abstracts AU - Romanek, Chris S AU - Gibson, Everett K, Jr AU - Socki, Richard A AU - Anonymous Y1 - 1993 PY - 1993 DA - 1993 SP - 376 PB - Blackwell Scientific Publications, Oxford VL - 5, Suppl. 1 SN - 0954-4887, 0954-4887 KW - oxygen KW - laser methods KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - mass spectra KW - O-18/O-16 KW - stable isotopes KW - carbon dioxide KW - sedimentary rocks KW - carbon KW - spectra KW - carbonate rocks KW - geochemistry KW - fractionation KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52803579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Terra+Abstracts&rft.atitle=Laser+extraction+of+carbon+and+oxygen+as+CO+%28sub+2%29+from+carbonates%3B+factors+affecting+isotopic+composition&rft.au=Romanek%2C+Chris+S%3BGibson%2C+Everett+K%2C+Jr%3BSocki%2C+Richard+A%3BAnonymous&rft.aulast=Romanek&rft.aufirst=Chris&rft.date=1993-01-01&rft.volume=5%2C+Suppl.+1&rft.issue=&rft.spage=376&rft.isbn=&rft.btitle=&rft.title=Terra+Abstracts&rft.issn=09544887&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh meeting of the European Union of Geosciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; carbon dioxide; carbonate rocks; fractionation; geochemistry; isotope ratios; isotopes; laser methods; mass spectra; O-18/O-16; oxygen; sedimentary rocks; spectra; stable isotopes ER - TY - RPRT T1 - Isolation of halophilic microorganisms from salt deposits of great geological age AN - 52463319; 1999-047569 AB - From salt sediments of Triassic or Permian ace from various locations in the world halophilic microorganisms were isolated. Molecular characteristics of several of the isolates suggested they belong to the archaebacteriae. One group appears to represent novel strains; several properties or one such isolate, strain BIp, are described here. The existence of viable microorganisms in ancient sediments would have great implications with respect to our notions on evolution, the search for life in extraterrestrial environments and the long- term survival of functional biological structures. Of crucial importance is thus the question if these microorganisms existed in the salt since the time of deposition or invaded at some later date. Some suggestions to address these issues experimentally are discussed. JF - Isolation of halophilic microorganisms from salt deposits of great geological age AU - Stan-Lotter, H AU - Denner, E Y1 - 1993 PY - 1993 DA - 1993 SP - 9 VL - NAS 1.26:206074 | NASA/CR-1993-206074 KW - chemically precipitated rocks KW - archaebacteria KW - astrobiology KW - biologic evolution KW - evaporites KW - Mesozoic KW - life origin KW - paleoecology KW - sedimentary rocks KW - isolation KW - Triassic KW - bacteria KW - sediments KW - planetology KW - salt KW - microorganisms KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52463319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Stan-Lotter%2C+H%3BDenner%2C+E&rft.aulast=Stan-Lotter&rft.aufirst=H&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Isolation+of+halophilic+microorganisms+from+salt+deposits+of+great+geological+age&rft.title=Isolation+of+halophilic+microorganisms+from+salt+deposits+of+great+geological+age&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1999-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number N19980213320NEG, Springfield, VA, United States N1 - SuppNotes - Contract NCC2-578 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Planetary cartography, 1993-2003 AN - 52375158; 2000-028148 JF - Planetary cartography, 1993-2003 AU - Zimbelman, James R AU - Batson, Raymond AU - Boynton, William V AU - Cannell, William AU - Davies, Merton E AU - Doyle, Frederick J AU - Janes, Daniel M AU - Lucchitta, Baerbel K AU - Masursky, Harold AU - Mouginis-Mark, Peter J AU - Saunders, R Stephen AU - Schenck, Paul AU - Thomas, Peter C AU - Williams, Steven H AU - Wu, Sherman AU - Boyce, Joseph M AU - Baloga, Stephen Y1 - 1993 PY - 1993 DA - 1993 SP - 50 KW - solar system KW - planets KW - digital cartography KW - mosaics KW - cartography KW - data processing KW - data bases KW - planetology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52375158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Zimbelman%2C+James+R%3BBatson%2C+Raymond%3BBoynton%2C+William+V%3BCannell%2C+William%3BDavies%2C+Merton+E%3BDoyle%2C+Frederick+J%3BJanes%2C+Daniel+M%3BLucchitta%2C+Baerbel+K%3BMasursky%2C+Harold%3BMouginis-Mark%2C+Peter+J%3BSaunders%2C+R+Stephen%3BSchenck%2C+Paul%3BThomas%2C+Peter+C%3BWilliams%2C+Steven+H%3BWu%2C+Sherman%3BBoyce%2C+Joseph+M%3BBaloga%2C+Stephen&rft.aulast=Zimbelman&rft.aufirst=James&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Planetary+cartography%2C+1993-2003&rft.title=Planetary+cartography%2C+1993-2003&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Availability - U.S., National Aeronautics and Space Administration, United States N1 - Document feature - illus. incl. 11 tables, sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Planetary engineering AN - 52343339; 2000-046534 AB - Assuming commercial fusion power, heavy lift vehicles and major advances in genetic engineering, we survey possible late-21st century methods of working major transformations in planetary environments. Much more Earth-like temperatures may be produced on Mars by generating low freezing-point greenhouse gases (e.g., CO (sub 2) , NH (sub 3) , CFCs) from indigenous materials or by transporting them from elsewhere; on Venus by cancelling the greenhouse effect with high-altitude absorbing fine particles, or by a sunshield at the first Lagrangian point, and/or by sequestering or transforming CO (sub 2) at the surface; and on Titan by greenhouse and/or fusion warming. To produce global environments suitable for plants and animals, including humans, requires modifying the atmospheric composition and mass and altering the surface temperatures on these bodies. In general, engineering congenial worlds for plants is much easier than for humans, and is also a useful means of working further modification of the atmospheric composition, especially the establishment of several hundred mbar of O (sub 2) from H (sub 2) O. Establishing global habitats suitable for humans will require the addition of at least several hundred mbar of N (sub 2) and O (sub 2) into the Martian atmosphere; the removal of most of the CO (sub 2) in Venus' atmosphere (most plausibly by forming carbonate minerals) plus the addition of large amounts of water; and the addition of several hundred mbar of O (sub 2) to Titan's atmosphere. Climatologically active abundances of some gases may be toxic to humans. It is not clear that any of these schemes are technically feasible (much less cost effective) with technologies projected for the end of the next century. They also raise disturbing questions about environmental ethics. Global warming on Earth has already led to calls for mitigation by planetary engineering--e.g., emplacement and replenishment of reflective or anti-greenhouse layers at high altitudes, or sunshields in space. But here especially we must be concerned about precision, stability, and inadvertent side-effects. The safest and most cost-effective means of countering global warming of the Earth-beyond, e.g., improved energy efficiency, CFC bans and alternative energy sources-is the continuing reforestation of approximately 2.5X10 (super 7) km (super 2) of the Earth's surface. This can be accomplished with present technology. JF - Resources of near-Earth space AU - Pollack, James B AU - Sagan, Carl A2 - Lewis, John S. A2 - Matthews, Mildred S. A2 - Guerrieri, Mary L. Y1 - 1993 PY - 1993 DA - 1993 PB - University of Arizona Press, Tucson, AZ SN - 0816514046 KW - icy satellites KW - oxygen KW - Venus KW - planetary environment KW - Mars KW - global change KW - environmental analysis KW - climate change KW - chlorofluorocarbons KW - temperature KW - carbon dioxide KW - toxicity KW - Titan Satellite KW - halogenated hydrocarbons KW - fusion KW - greenhouse effect KW - satellites KW - Martian atmosphere KW - global warming KW - ammonia compound KW - water KW - solar system KW - revegetation KW - Earth KW - human activity KW - atmosphere KW - terrestrial planets KW - planets KW - organic compounds KW - 04:Extraterrestrial geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52343339?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Pollack%2C+James+B%3BSagan%2C+Carl&rft.aulast=Pollack&rft.aufirst=James&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=Planetary+engineering&rft.title=Planetary+engineering&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 73 N1 - PubXState - AZ N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - A chemical approach to carbon dioxide utilization on Mars AN - 52342459; 2000-046529 AB - This chapter examines several novel proposals for CO (sub 2) reduction by chemical, photochemical, and photoelectrochemical means. Photolytic reduction of CO (sub 2) to CO and O (sub 2) can occur under mild conditions using a series of recently synthesized trinuclear nickel catalysts. We examine potential uses of CO, a by-product of CO (sub 2) reduction, and carbon, as reducing agents in metal oxide processing to produce structural or power materials; CO (sub 2) produced in these reactions can then be recycled to generate O (sub 2) and CO. Reduction of CO (sub 2) with hydrogen produces methane through the Sabatier process. Further partial oxidation of methane can be carried out to produce acetylene, through the Sachsse process. The impact of such propellants on future missions to Mars is assessed. JF - Resources of near-Earth space AU - Hepp, Aloysius F AU - Landis, Geoffrey A AU - Kubiak, Clifford P A2 - Lewis, John S. A2 - Matthews, Mildred S. A2 - Guerrieri, Mary L. Y1 - 1993 PY - 1993 DA - 1993 PB - University of Arizona Press, Tucson, AZ SN - 0816514046 KW - acetylene KW - technology KW - methane KW - oxygen KW - oxidation KW - aliphatic hydrocarbons KW - Viking Program KW - Mars KW - alkanes KW - carbon dioxide KW - terrestrial planets KW - planets KW - organic compounds KW - hydrogen KW - alkynes KW - hydrocarbons KW - photolytic reduction KW - synthetic materials KW - Martian atmosphere KW - construction materials KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52342459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Hepp%2C+Aloysius+F%3BLandis%2C+Geoffrey+A%3BKubiak%2C+Clifford+P&rft.aulast=Hepp&rft.aufirst=Aloysius&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=A+chemical+approach+to+carbon+dioxide+utilization+on+Mars&rft.title=A+chemical+approach+to+carbon+dioxide+utilization+on+Mars&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 57 N1 - PubXState - AZ N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - The geoid and Earth rotation AN - 52169224; 2001-079005 JF - Geoid and its geophysical interpretations AU - Chao, Benjamin Fong A2 - Vanicek, Petr A2 - Christou, Nikolaos T. Y1 - 1993 PY - 1993 DA - 1993 PB - CRC Press, Boca Raton, FL SN - 0849342279 KW - mass KW - motions KW - gravity field KW - geodynamics KW - Earth KW - rotation KW - mathematical models KW - applications KW - geodesy KW - geoid KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52169224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Chao%2C+Benjamin+Fong&rft.aulast=Chao&rft.aufirst=Benjamin&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0849342279&rft.btitle=The+geoid+and+Earth+rotation&rft.title=The+geoid+and+Earth+rotation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 45 N1 - PubXState - FL N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Utilizing Martian resources for life support AN - 51338515; 2000-046530 AB - The human exploration of Mars can benefit from the availability of resources on the Martian surface that can be used to provide life support consumables. The key compounds O (sub 2) , buffer gas (Ar/N (sub 2) ), and H (sub 2) O are available on Mars and can be extracted from the atmosphere. Water may also be available from soil water and ground ice. The soil could be used as radiation shielding and could provide useful plant growth medium. Fairly autonomous processes can be designed to extract and stockpile Martian consumables. The utilization of O (sub 2) , obtained from Martian atmospheric CO (sub 2) will probably be practical even on initial human missions. The ability to utilize these materials in support of a human exploration effort allows missions that are more robust and economical than would otherwise be possible. JF - Resources of near-Earth space AU - McKay, Christopher P AU - Meyer, Thomas R AU - Boston, Penelope J AU - Nelson, Mark AU - MacCallum, Taber AU - Gwynne, Owen E A2 - Lewis, John S. A2 - Matthews, Mildred S. A2 - Guerrieri, Mary L. Y1 - 1993 PY - 1993 DA - 1993 PB - University of Arizona Press, Tucson, AZ SN - 0816514046 KW - water KW - soils KW - Plantae KW - oxygen KW - human activity KW - water vapor KW - Mars KW - production KW - ultraviolet radiation KW - nitrogen KW - exploration KW - carbon dioxide KW - argon KW - terrestrial planets KW - planets KW - electromagnetic radiation KW - noble gases KW - ice KW - ground ice KW - Martian atmosphere KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51338515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=McKay%2C+Christopher+P%3BMeyer%2C+Thomas+R%3BBoston%2C+Penelope+J%3BNelson%2C+Mark%3BMacCallum%2C+Taber%3BGwynne%2C+Owen+E&rft.aulast=McKay&rft.aufirst=Christopher&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=Utilizing+Martian+resources+for+life+support&rft.title=Utilizing+Martian+resources+for+life+support&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 68 N1 - PubXState - AZ N1 - Document feature - 8 tables N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Arctic Ocean winter polynya zones during 1978-87 AN - 51321212; 1993-015272 JF - U. S. Geological Survey Circular AU - Campbell, W J AU - Gloersen, Per Y1 - 1993 PY - 1993 DA - 1993 SP - 73 EP - 74 PB - U. S. Geological Survey, Reston, VA SN - 1067-084X, 1067-084X KW - polynya KW - ice KW - sea ice KW - Arctic Ocean KW - seasonal variations KW - USGS KW - remote sensing KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51321212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=U.+S.+Geological+Survey+Circular&rft.atitle=Arctic+Ocean+winter+polynya+zones+during+1978-87&rft.au=Campbell%2C+W+J%3BGloersen%2C+Per&rft.aulast=Campbell&rft.aufirst=W&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=U.+S.+Geological+Survey+Circular&rft.issn=1067084X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - First U. S. Geological Survey global change research forum N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - VA N1 - Last updated - 2014-03-14 N1 - CODEN - XICIA5 N1 - SubjectsTermNotLitGenreText - Arctic Ocean; ice; polynya; remote sensing; sea ice; seasonal variations; USGS ER - TY - JOUR T1 - Rhenium-osmium isotope systematics of ordinary chondrites and iron meteorites AN - 51062320; 1993-019047 JF - Proceedings of the Lunar and Planetary Science Conference AU - Walker, R J AU - Morgan, J W AU - Horan, M F AU - Grossman, R N AU - Blanchard, Douglas AU - Black, David Y1 - 1993 PY - 1993 DA - 1993 SP - 1477 EP - 1478 PB - Pergamon, New York, NY VL - 24 SN - 0270-9511, 0270-9511 KW - ordinary chondrites KW - stony meteorites KW - Precambrian KW - isotopes KW - parent bodies KW - mass spectra KW - Re/Os KW - isochrons KW - platinum group KW - stable isotopes KW - meteorites KW - radioactive isotopes KW - iron meteorites KW - dates KW - Os-187/Os-186 KW - metals KW - absolute age KW - osmium KW - Archean KW - spectra KW - chondrites KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51062320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+and+Planetary+Science+Conference&rft.atitle=Rhenium-osmium+isotope+systematics+of+ordinary+chondrites+and+iron+meteorites&rft.au=Walker%2C+R+J%3BMorgan%2C+J+W%3BHoran%2C+M+F%3BGrossman%2C+R+N%3BBlanchard%2C+Douglas%3BBlack%2C+David&rft.aulast=Walker&rft.aufirst=R&rft.date=1993-01-01&rft.volume=24&rft.issue=&rft.spage=1477&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Lunar+and+Planetary+Science+Conference&rft.issn=02709511&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fourth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 7 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Archean; chondrites; dates; iron meteorites; isochrons; isotopes; mass spectra; metals; meteorites; ordinary chondrites; Os-187/Os-186; osmium; parent bodies; platinum group; Precambrian; radioactive isotopes; Re/Os; spectra; stable isotopes; stony meteorites ER - TY - JOUR T1 - The Clementine Mission science return at the Moon and Geographos AN - 51062266; 1993-019043 JF - Proceedings of the Lunar and Planetary Science Conference AU - Vorder Bruegge, R W AU - Davies, M E AU - Horan, D M AU - Lucey, P G AU - Pieters, C M AU - McEwen, Alfred S AU - Nozette, S AU - Shoemaker, Eugene M AU - Squyres, S W AU - Thomas, P C AU - Blanchard, Douglas AU - Black, David Y1 - 1993 PY - 1993 DA - 1993 SP - 1469 EP - 1470 PB - Pergamon, New York, NY VL - 24 SN - 0270-9511, 0270-9511 KW - imagery KW - Moon KW - Clementine Program KW - instruments KW - Geographos KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51062266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Clementine+Mission+science+return+at+the+Moon+and+Geographos&rft.au=Vorder+Bruegge%2C+R+W%3BDavies%2C+M+E%3BHoran%2C+D+M%3BLucey%2C+P+G%3BPieters%2C+C+M%3BMcEwen%2C+Alfred+S%3BNozette%2C+S%3BShoemaker%2C+Eugene+M%3BSquyres%2C+S+W%3BThomas%2C+P+C%3BBlanchard%2C+Douglas%3BBlack%2C+David&rft.aulast=Vorder+Bruegge&rft.aufirst=R&rft.date=1993-01-01&rft.volume=24&rft.issue=&rft.spage=1469&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Lunar+and+Planetary+Science+Conference&rft.issn=02709511&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fourth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 11 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Clementine Program; Geographos; imagery; instruments; Moon ER - TY - JOUR T1 - U-Th-Pb, Sm-Nd, and Ar-Ar isotopic systematics of lunar meteorite Yamato-793169 AN - 51061631; 1993-019027 JF - Proceedings of the Lunar and Planetary Science Conference AU - Torigoye, Noriko AU - Misawa, Keiji AU - Dalrymple, G Brent AU - Tatsumoto, Mitsunobu AU - Blanchard, Douglas AU - Black, David Y1 - 1993 PY - 1993 DA - 1993 SP - 1437 EP - 1438 PB - Pergamon, New York, NY VL - 24 SN - 0270-9511, 0270-9511 KW - Ar/Ar KW - Yamato Meteorites KW - Precambrian KW - Moon KW - meteorites KW - mineral composition KW - U/Th/Pb KW - Sm/Nd KW - dates KW - absolute age KW - crystallization KW - Archean KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51061631?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+and+Planetary+Science+Conference&rft.atitle=U-Th-Pb%2C+Sm-Nd%2C+and+Ar-Ar+isotopic+systematics+of+lunar+meteorite+Yamato-793169&rft.au=Torigoye%2C+Noriko%3BMisawa%2C+Keiji%3BDalrymple%2C+G+Brent%3BTatsumoto%2C+Mitsunobu%3BBlanchard%2C+Douglas%3BBlack%2C+David&rft.aulast=Torigoye&rft.aufirst=Noriko&rft.date=1993-01-01&rft.volume=24&rft.issue=&rft.spage=1437&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Lunar+and+Planetary+Science+Conference&rft.issn=02709511&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fourth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 4 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Ar/Ar; Archean; crystallization; dates; meteorites; mineral composition; Moon; Precambrian; Sm/Nd; U/Th/Pb; Yamato Meteorites ER - TY - JOUR T1 - Consortium reports on lunar meteorites Yamato 793169 and Asuka 881757, a new type of mare basalt AN - 51061490; 1993-019086 JF - Proceedings of the Lunar and Planetary Science Conference AU - Yanai, Keizo AU - Takeda, Hiroshi AU - Lindstrom, Marilyn M AU - Tatsumoto, M AU - Torigoe, N AU - Misawa, K AU - Warren, P H AU - Kallemeyn, G W AU - Koeberl, C AU - Kojima, H AU - Takahashi, K AU - Masuda, A AU - Nishiizumi, K AU - Blanchard, Douglas AU - Black, David Y1 - 1993 PY - 1993 DA - 1993 SP - 1555 EP - 1556 PB - Pergamon, New York, NY VL - 24 SN - 0270-9511, 0270-9511 KW - Yamato Meteorites KW - volcanic rocks KW - U/Pb KW - Precambrian KW - Moon KW - igneous rocks KW - Asuka Meteorite KW - maria KW - meteorites KW - mineral composition KW - major elements KW - dates KW - basalts KW - absolute age KW - petrography KW - crystallization KW - Archean KW - trace elements KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51061490?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+and+Planetary+Science+Conference&rft.atitle=Consortium+reports+on+lunar+meteorites+Yamato+793169+and+Asuka+881757%2C+a+new+type+of+mare+basalt&rft.au=Yanai%2C+Keizo%3BTakeda%2C+Hiroshi%3BLindstrom%2C+Marilyn+M%3BTatsumoto%2C+M%3BTorigoe%2C+N%3BMisawa%2C+K%3BWarren%2C+P+H%3BKallemeyn%2C+G+W%3BKoeberl%2C+C%3BKojima%2C+H%3BTakahashi%2C+K%3BMasuda%2C+A%3BNishiizumi%2C+K%3BBlanchard%2C+Douglas%3BBlack%2C+David&rft.aulast=Yanai&rft.aufirst=Keizo&rft.date=1993-01-01&rft.volume=24&rft.issue=&rft.spage=1555&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Lunar+and+Planetary+Science+Conference&rft.issn=02709511&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fourth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 13 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Archean; Asuka Meteorite; basalts; crystallization; dates; igneous rocks; major elements; maria; meteorites; mineral composition; Moon; petrography; Precambrian; trace elements; U/Pb; volcanic rocks; Yamato Meteorites ER - TY - JOUR T1 - Arcuate and circular structures in the Tharsis region, evidence of coronae on Mars AN - 51061434; 1993-019056 JF - Proceedings of the Lunar and Planetary Science Conference AU - Watters, T R AU - Zimbelman, J R AU - Scott, D H AU - Blanchard, Douglas AU - Black, David Y1 - 1993 PY - 1993 DA - 1993 SP - 1495 EP - 1496 PB - Pergamon, New York, NY VL - 24 SN - 0270-9511, 0270-9511 KW - diapirs KW - Noachian KW - lithosphere KW - Mars KW - Alba Fossa KW - Tempe Terra KW - Hesperian KW - coronae KW - Alba Patera KW - Lunae Planum KW - grabens KW - terrestrial planets KW - planets KW - fractures KW - Cerranius Fossae KW - Tantalus Fossa KW - Tharsis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51061434?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+and+Planetary+Science+Conference&rft.atitle=Arcuate+and+circular+structures+in+the+Tharsis+region%2C+evidence+of+coronae+on+Mars&rft.au=Watters%2C+T+R%3BZimbelman%2C+J+R%3BScott%2C+D+H%3BBlanchard%2C+Douglas%3BBlack%2C+David&rft.aulast=Watters&rft.aufirst=T&rft.date=1993-01-01&rft.volume=24&rft.issue=&rft.spage=1495&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Lunar+and+Planetary+Science+Conference&rft.issn=02709511&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fourth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 9 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alba Fossa; Alba Patera; Cerranius Fossae; coronae; diapirs; fractures; grabens; Hesperian; lithosphere; Lunae Planum; Mars; Noachian; planets; Tantalus Fossa; Tempe Terra; terrestrial planets; Tharsis ER - TY - BOOK T1 - Ice sheet research using SAR AN - 50528582; 2009-011984 JF - SAR users meeting AU - Fahnestock, Mark AU - Anonymous Y1 - 1993 PY - 1993 DA - 1993 PB - University of Alaska -Fairbanks, Geophysical Institute, Alaska Satellite Facility, Fairbanks, AK KW - Greenland KW - imagery KW - SAR KW - Arctic region KW - Greenland ice sheet KW - radar methods KW - mapping KW - glacial geology KW - ice sheets KW - airborne methods KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50528582?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=Fahnestock%2C+Mark%3BAnonymous&rft.aulast=Fahnestock&rft.aufirst=Mark&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Ice+sheet+research+using+SAR&rft.title=Ice+sheet+research+using+SAR&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SAR users meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 5 N1 - PubXState - AK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Satellite passive microwave observations of snow conditions in the upper Colorado River basin AN - 50348574; 1993-015301 JF - U. S. Geological Survey Circular AU - Josberger, E G AU - Campbell, W J AU - Gloersen, Per AU - Chang, A T C Y1 - 1993 PY - 1993 DA - 1993 SP - 91 PB - U. S. Geological Survey, Reston, VA SN - 1067-084X, 1067-084X KW - United States KW - passive methods KW - microwave methods KW - hydrology KW - Colorado River basin KW - snow KW - atmospheric precipitation KW - Southwestern U.S. KW - USGS KW - satellite methods KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50348574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=U.+S.+Geological+Survey+Circular&rft.atitle=Satellite+passive+microwave+observations+of+snow+conditions+in+the+upper+Colorado+River+basin&rft.au=Josberger%2C+E+G%3BCampbell%2C+W+J%3BGloersen%2C+Per%3BChang%2C+A+T+C&rft.aulast=Josberger&rft.aufirst=E&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=U.+S.+Geological+Survey+Circular&rft.issn=1067084X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - First U. S. Geological Survey global change research forum N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - VA N1 - Last updated - 2014-03-14 N1 - CODEN - XICIA5 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; Colorado River basin; hydrology; microwave methods; passive methods; remote sensing; satellite methods; snow; Southwestern U.S.; United States; USGS ER - TY - JOUR T1 - Complex structure of the Thaumasia region of Mars AN - 50342158; 1993-019008 JF - Proceedings of the Lunar and Planetary Science Conference AU - Tanaka, Kenneth L AU - Dohm, James M AU - Blanchard, Douglas AU - Black, David Y1 - 1993 PY - 1993 DA - 1993 SP - 1399 EP - 1400 PB - Pergamon, New York, NY VL - 24 SN - 0270-9511, 0270-9511 KW - Noachian KW - impact features KW - Thaumasia KW - lithosphere KW - stress KW - Mars KW - Hesperian KW - deformation KW - extension tectonics KW - grabens KW - terrestrial planets KW - planets KW - structural geology KW - compression tectonics KW - impact craters KW - tectonics KW - scarps KW - reconstruction KW - Tharsis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50342158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+and+Planetary+Science+Conference&rft.atitle=Complex+structure+of+the+Thaumasia+region+of+Mars&rft.au=Tanaka%2C+Kenneth+L%3BDohm%2C+James+M%3BBlanchard%2C+Douglas%3BBlack%2C+David&rft.aulast=Tanaka&rft.aufirst=Kenneth&rft.date=1993-01-01&rft.volume=24&rft.issue=&rft.spage=1399&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Lunar+and+Planetary+Science+Conference&rft.issn=02709511&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fourth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 7 N1 - PubXState - NY N1 - Document feature - sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - compression tectonics; deformation; extension tectonics; grabens; Hesperian; impact craters; impact features; lithosphere; Mars; Noachian; planets; reconstruction; scarps; stress; structural geology; tectonics; terrestrial planets; Tharsis; Thaumasia ER - TY - JOUR T1 - Large, ancient, compressional structures on Mars AN - 50341305; 1993-019009 JF - Proceedings of the Lunar and Planetary Science Conference AU - Tanaka, Kenneth L AU - Schultz, Richard A AU - Blanchard, Douglas AU - Black, David Y1 - 1993 PY - 1993 DA - 1993 SP - 1401 EP - 1402 PB - Pergamon, New York, NY VL - 24 SN - 0270-9511, 0270-9511 KW - terrestrial planets KW - planets KW - Coprates Rise KW - Noachian KW - Thaumasia KW - compression tectonics KW - Mars KW - tectonics KW - scarps KW - Hesperian KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50341305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+and+Planetary+Science+Conference&rft.atitle=Large%2C+ancient%2C+compressional+structures+on+Mars&rft.au=Tanaka%2C+Kenneth+L%3BSchultz%2C+Richard+A%3BBlanchard%2C+Douglas%3BBlack%2C+David&rft.aulast=Tanaka&rft.aufirst=Kenneth&rft.date=1993-01-01&rft.volume=24&rft.issue=&rft.spage=1401&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Lunar+and+Planetary+Science+Conference&rft.issn=02709511&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Twenty-fourth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 10 N1 - PubXState - NY N1 - Document feature - sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - compression tectonics; Coprates Rise; Hesperian; Mars; Noachian; planets; scarps; tectonics; terrestrial planets; Thaumasia ER - TY - BOOK T1 - Using resources from near-Earth space AN - 50314274; 2000-046503 AB - The parts of the solar system that are most accessible from Earth (the Moon, the near-Earth asteroids, and Mars and its moons) are rich in materials of great potential value to humanity. Immediate uses of these resources to manufacture propellants, structural metals, refractories, life-support fluids and glass can support future large-scale space activities. In the longterm, non-terrestrial sources of rare materials and energy may be of great importance here on Earth. JF - Resources of near-Earth space AU - Lewis, John S AU - McKay, David S AU - Clark, Benton C A2 - Lewis, John S. A2 - Matthews, Mildred S. A2 - Guerrieri, Mary L. Y1 - 1993 PY - 1993 DA - 1993 PB - University of Arizona Press, Tucson, AZ SN - 0816514046 KW - resources KW - non-terrestrial sources KW - asteroids KW - Mars KW - interplanetary space KW - climate change KW - materials KW - energy sources KW - satellites KW - Deimos Satellite KW - construction materials KW - water KW - Phobos Satellite KW - solar system KW - Earth KW - Moon KW - propellants KW - lunar bases KW - Luna Program KW - cost KW - terrestrial planets KW - planets KW - lunar samples KW - lunar crust KW - 04:Extraterrestrial geology KW - 26A:Economic geology, general, deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50314274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Lewis%2C+John+S%3BMcKay%2C+David+S%3BClark%2C+Benton+C&rft.aulast=Lewis&rft.aufirst=John&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=Using+resources+from+near-Earth+space&rft.title=Using+resources+from+near-Earth+space&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - AZ N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Water on Mars; its history and availability as a resource AN - 50314248; 2000-046527 AB - Water will be an important resource for future missions to explore Mars. As such, some understanding is required of the abundance and distribution of water in the Martian near-surface environment. As no technique has been used to date to map near-surface water in the Martian regolith or polar regions, our understanding of where the water is today depends on interpretations of observations which relate to the global history of water over geologic time and to the seasonal cycle of water in the atmosphere; in situ measurements are available at only two locations. These observations and the inferences from them are summarized in this chapter, along with the current best guesses as to where water can be found and what future observations might be used to locate water. Based on our current understanding of the Martian environment, the only sure source of water is in the polar regions; water or ice in the nonpolar regolith may be unavailable for mining or may be nonexistent. Additional observations might provide a more optimistic basis for finding water. JF - Resources of near-Earth space AU - Jakosky, Bruce M AU - Zent, Aaron P A2 - Lewis, John S. A2 - Matthews, Mildred S. A2 - Guerrieri, Mary L. Y1 - 1993 PY - 1993 DA - 1993 PB - University of Arizona Press, Tucson, AZ SN - 0816514046 KW - oxygen KW - isotopes KW - Martian regolith KW - Mars KW - stable isotopes KW - exploration KW - Ar-40 KW - volcanism KW - noble gases KW - ice KW - geochemistry KW - Martian atmosphere KW - water KW - hydrology KW - polar regions KW - in situ KW - valleys KW - isotope ratios KW - drainage patterns KW - O-18/O-16 KW - measurement KW - argon KW - terrestrial planets KW - planets KW - volatiles KW - D/H KW - hydrogen KW - water resources KW - 21:Hydrogeology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50314248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Jakosky%2C+Bruce+M%3BZent%2C+Aaron+P&rft.aulast=Jakosky&rft.aufirst=Bruce&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=Water+on+Mars%3B+its+history+and+availability+as+a+resource&rft.title=Water+on+Mars%3B+its+history+and+availability+as+a+resource&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 105 N1 - PubXState - AZ N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Chemical and physical properties of the Martian satellites AN - 50312973; 2000-046532 AB - Data bearing on the composition of Phobos and Deimos are reviewed. Infrared spectroscopy indicates that neither satellite has significant amounts of bound water in its surface minerals. However, magnetospheric data from the Phobos 2 spacecraft can be interpreted as suggesting that the satellites are outgassing water vapor. Theoretical models indicate that if Phobos originally formed with an ice component, it could still retain an icy "permafrost" core at depths less than 100 m near the poles. A significant ice component is consistent with the surprisingly low density (1.9 g cc (super -1) ) measured by Phobos 2; but a very high porosity ( approximately 50%) could also explain this result. The most likely composition for Phobos and Deimos is a "CM3" carbonaceous-chondrite-like assemblage of anhydrous silicates, carbon, organic compounds and ice. This composition suggests that the Martian satellites were originally formed in the outer asteroid belt and later captured by Mars. Our knowledge of Phobos and Deimos is still inadequate to evaluate intelligently their usefulness as resource bases, and another unmanned mission to Phobos is essential before any serious planning for its use is carried out. JF - Resources of near-Earth space AU - Bell, Jeffrey F AU - Fanale, Fraser AU - Cruikshank, Dale P A2 - Lewis, John S. A2 - Matthews, Mildred S. A2 - Guerrieri, Mary L. Y1 - 1993 PY - 1993 DA - 1993 PB - University of Arizona Press, Tucson, AZ SN - 0816514046 KW - water KW - silicates KW - Phobos Satellite KW - permafrost KW - density KW - water vapor KW - Mars KW - outer asteroid belt KW - porosity KW - Phobos-2 KW - infrared spectra KW - terrestrial planets KW - planets KW - ice KW - carbon KW - theoretical models KW - spectra KW - satellites KW - organic carbon KW - Deimos Satellite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50312973?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bell%2C+Jeffrey+F%3BFanale%2C+Fraser%3BCruikshank%2C+Dale+P&rft.aulast=Bell&rft.aufirst=Jeffrey&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=Chemical+and+physical+properties+of+the+Martian+satellites&rft.title=Chemical+and+physical+properties+of+the+Martian+satellites&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 43 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Atmospheric effects on the utility of solar power on Mars AN - 50311959; 2000-046531 AB - Solar power is likely to play an important role in the coming exploration of Mars. As a resource it is cheap, in great supply, easy to convert into useful work, and lacks dangerous failure modes that can jeopardize the safety of future human outposts. Yet Mars is farther from the Sun and it has an atmosphere. In particular, dust storms are a major concern because they can literally envelop the entire planet, and can last for several months. Engineering studies of solar-powered systems designed to operate on the surface of Mars must carefully consider these aspects of the Martian environment. This chapter summarizes what is known about the Martian atmosphere as it relates to solar radiation at the surface. Thus, the composition of the atmosphere is reviewed and the gases and aerosols that affect the solar beam are identified and characterized, including dust particles and water ice clouds. A methodology is presented that enables the calculation of solar radiation at the surface. It is shown that although the presence of dust reduces the available energy, there still remains an appreciable diffuse component that can be utilized by solar collectors. Water-ice clouds have the same effect, but are of less concern than dust particles because of their generally lower optical depths, and greater scattering ability. It is estimated that the power requirements of a human outpost located at the Viking Lander 1 site (23 degrees N) could be met with solar arrays about 30 by 30 m square, and about 1000 kg in mass. A system somewhat less than twice that size and mass could meet the power requirements for in-situ propellant production as envisioned in the "Mars Direct" scenario as proposed by Baker and Zubrin (1990). Thus, solar power is a viable energy source for future missions to Mars. JF - Resources of near-Earth space AU - Haberle, Robert M AU - McKay, Christopher P AU - Pollack, James B AU - Gwynne, Owen E AU - Atkinson, David H AU - Appelbaum, Joseph AU - Landis, Geoffrey A AU - Zurek, Richard W AU - Flood, Dennis J A2 - Lewis, John S. A2 - Matthews, Mildred S. A2 - Guerrieri, Mary L. Y1 - 1993 PY - 1993 DA - 1993 PB - University of Arizona Press, Tucson, AZ SN - 0816514046 KW - water KW - dust storms KW - clouds KW - albedo KW - human activity KW - Viking Program KW - Mars KW - solar energy KW - gases KW - exploration KW - terrestrial planets KW - planets KW - ice KW - aerosols KW - Martian atmosphere KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50311959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Haberle%2C+Robert+M%3BMcKay%2C+Christopher+P%3BPollack%2C+James+B%3BGwynne%2C+Owen+E%3BAtkinson%2C+David+H%3BAppelbaum%2C+Joseph%3BLandis%2C+Geoffrey+A%3BZurek%2C+Richard+W%3BFlood%2C+Dennis+J&rft.aulast=Haberle&rft.aufirst=Robert&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=Atmospheric+effects+on+the+utility+of+solar+power+on+Mars&rft.title=Atmospheric+effects+on+the+utility+of+solar+power+on+Mars&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 60 N1 - PubXState - AZ N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - The physical and chemical properties and resource potential of Martian surface soils AN - 50309377; 2000-046525 AB - The physical and chemical properties of Martian surface soils are reviewed from the perspective of providing resources to support human activities on Mars. The relevant properties can only be inferred from limited analyses performed by the Viking Landers, from information derived from remote sensing, and from analysis of the SNC meteorites thought to be from Mars. Several lines of evidence suggest that the Martian surface is globally covered with a fine-grained soil having nearly uniform physical and compositional properties. Viking experiments characterized the physical properties of the soil well enough to allow preliminary designs for resource extraction equipment. The mineralogy of the soil has not been determined but the bulk elemental compositions determined by the Viking Lander X-ray Spectrometer analyses provide evidence for clay minerals (possibly smectites) or mineraloids (palagonite) admixed with sulfate and chloride salts. The soil unit contains materials bearing useful amounts of H (sub 2) O, Fe, Al, Mg, S and Cl. Spectroscopic observations of Mars provide additional constraints on the composition of the soil and the best match to Martian spectra is obtained with certain terrestrial palagonites which contain poorly crystalline iron oxides. Many lines of evidence suggest that the SNC meteorites are samples of Martian crustal materials and thus provide information about the parent minerals from which Martian soil is derived. A number of trace mineral phases have been identified in the SNCs including carbonates, sulfates, and possible smectites. Martian surface materials can be used directly in a number of ways. Martian soil, with appropriate preconditioning, can probably be used as a plant growth medium, supplying mechanical support, nutrient elements, and water at optimal conditions to the plants. Loose Martian soils could be used to cover structures and provide radiation shielding for surface habitats. Martian soil could be wetted and formed into duricrete bricks with strength comparable to concrete for use in construction. Useful elements and compounds can be extracted from Martian soil. Water, one of the most valuable resources, probably exists in hydrated minerals although no specific mineralogical identifications have yet been achieved. Viking experiments showed that water evolved from Martian soils when they were heated to 500 C suggesting the soils contained at least approximately 1% loosely bound water. Many minerals which might exist on Mars, including gypsum (21% H (sub 2) O), kieserite (13% H (sub 2) O), goethite (10% H (sub 2) O), and nontronite (5-6% H (sub 2) O), contain tightly bound (structural) water which could be released by pyrolyses but the required energy input would vary with the identity and abundance of the mineral. The high sulfur content and the implication that sulfur may occur as a soluble salt suggests that sulfur can be readily extracted from Martian soil. Sulfur and sulfur-bearing compounds are used in the manufacture of a wide variety of useful substances including acids, bases, oxidizing and reducing agents, fertilizers, dyes, catalytic agents, detergents, solvents, explosives, etc. Machinable metals such as iron, magnesium and aluminum could also be extracted from Martian soils. Martian soil contains 18 wt% iron oxide which is likely to be in the form of poorly crystalline or nanocrystalline iron oxide minerals. JF - Resources of near-Earth space AU - Stoker, C R AU - Gooding, J L AU - Roush, T AU - Banin, A AU - Burt, Donald M AU - Clark, Benton C AU - Flynn, G AU - Gwynne, Owen E A2 - Lewis, John S. A2 - Matthews, Mildred S. A2 - Guerrieri, Mary L. Y1 - 1993 PY - 1993 DA - 1993 PB - University of Arizona Press, Tucson, AZ SN - 0816514046 KW - silicates KW - resources KW - volcanic rocks KW - stony meteorites KW - glasses KW - Martian meteorites KW - igneous rocks KW - Mars KW - production KW - magnetic properties KW - SNC Meteorites KW - meteorites KW - chemical properties KW - spectra KW - smelting KW - water KW - human activity KW - Viking Program KW - mineralogy KW - achondrites KW - X-ray spectra KW - Martian soils KW - palagonite KW - clay minerals KW - terrestrial planets KW - nutrients KW - planets KW - physical properties KW - telescopic reflectance spectra KW - parent materials KW - sheet silicates KW - remote sensing KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50309377?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Stoker%2C+C+R%3BGooding%2C+J+L%3BRoush%2C+T%3BBanin%2C+A%3BBurt%2C+Donald+M%3BClark%2C+Benton+C%3BFlynn%2C+G%3BGwynne%2C+Owen+E&rft.aulast=Stoker&rft.aufirst=C&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0816514046&rft.btitle=The+physical+and+chemical+properties+and+resource+potential+of+Martian+surface+soils&rft.title=The+physical+and+chemical+properties+and+resource+potential+of+Martian+surface+soils&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 130 N1 - PubXState - AZ N1 - Document feature - illus. incl. 14 tables N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The atmospheric CH (sub 4) increase since the Last Glacial Maximum; I, Source estimates AN - 50291843; 1994-003679 JF - Tellus, Series B: Chemical and Physical Meteorology AU - Chappellaz, J A AU - Fung, I Y AU - Thompson, A M Y1 - 1993 PY - 1993 DA - 1993 SP - 228 EP - 241 PB - Swedish Geophysical Society-Svenska Geofysiska Foereningen, Stockholm VL - 45 IS - 3 SN - 0280-6509, 0280-6509 KW - United States KW - aliphatic hydrocarbons KW - Europe KW - Russian Federation KW - vegetation KW - Holocene KW - upper Pleistocene KW - modern KW - Cenozoic KW - spatial distribution KW - Commonwealth of Independent States KW - Asia KW - organic materials KW - methane KW - Western Europe KW - Quaternary KW - Australasia KW - Finland KW - atmosphere KW - alkanes KW - United Kingdom KW - Scandinavia KW - organic compounds KW - wetlands KW - hydrocarbons KW - Pleistocene KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50291843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tellus%2C+Series+B%3A+Chemical+and+Physical+Meteorology&rft.atitle=The+atmospheric+CH+%28sub+4%29+increase+since+the+Last+Glacial+Maximum%3B+I%2C+Source+estimates&rft.au=Chappellaz%2C+J+A%3BFung%2C+I+Y%3BThompson%2C+A+M&rft.aulast=Chappellaz&rft.aufirst=J&rft.date=1993-01-01&rft.volume=45&rft.issue=3&rft.spage=228&rft.isbn=&rft.btitle=&rft.title=Tellus%2C+Series+B%3A+Chemical+and+Physical+Meteorology&rft.issn=02806509&rft_id=info:doi/ L2 - http://www.blackwellpublishing.com/journal.asp?ref=0280-6509 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 1994-01-01 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Asia; atmosphere; Australasia; Cenozoic; Commonwealth of Independent States; Europe; Finland; Holocene; hydrocarbons; methane; modern; organic compounds; organic materials; Pleistocene; Quaternary; Russian Federation; Scandinavia; spatial distribution; United Kingdom; United States; upper Pleistocene; vegetation; Western Europe; wetlands ER - TY - JOUR T1 - Isotopic responses to interannual climate variability simulated by an atmospheric general circulation model AN - 50238459; 1994-037004 JF - Quaternary Science Reviews AU - Cole, Julia E AU - Rind, David AU - Fairbanks, Richard G A2 - Murray, D. A2 - Overpeck, Jonathan Y1 - 1993 PY - 1993 DA - 1993 SP - 387 EP - 406 PB - Pergamon, Oxford VL - 12 IS - 6 SN - 0277-3791, 0277-3791 KW - tropical environment KW - Far East KW - oxygen KW - isotopes KW - paleo-oceanography KW - Europe KW - simulation KW - paleoclimatology KW - stable isotopes KW - West Pacific KW - variations KW - Cenozoic KW - thermal anomalies KW - paleotemperature KW - El Nino KW - Tibetan Plateau KW - glacial environment KW - cooling KW - Asia KW - China KW - general circulation models KW - Quaternary KW - temperate environment KW - interglacial environment KW - rainfall KW - isotope ratios KW - paleoatmosphere KW - O-18/O-16 KW - advection KW - Southern Oscillation KW - South America KW - Pacific Ocean KW - Pleistocene KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50238459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Science+Reviews&rft.atitle=Isotopic+responses+to+interannual+climate+variability+simulated+by+an+atmospheric+general+circulation+model&rft.au=Cole%2C+Julia+E%3BRind%2C+David%3BFairbanks%2C+Richard+G&rft.aulast=Cole&rft.aufirst=Julia&rft.date=1993-01-01&rft.volume=12&rft.issue=6&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Quaternary+Science+Reviews&rft.issn=02773791&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02773791 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1992 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 59 N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - advection; Asia; Cenozoic; China; cooling; El Nino; Europe; Far East; general circulation models; glacial environment; interglacial environment; isotope ratios; isotopes; O-18/O-16; oxygen; Pacific Ocean; paleo-oceanography; paleoatmosphere; paleoclimatology; paleotemperature; Pleistocene; Quaternary; rainfall; simulation; South America; Southern Oscillation; stable isotopes; temperate environment; thermal anomalies; Tibetan Plateau; tropical environment; variations; West Pacific ER - TY - JOUR T1 - Remote sensing for hydrologic models AN - 50237085; 1994-037846 JF - Water-Resources Investigations - U. S. Geological Survey AU - Engman, Edwin T AU - Burton, James S Y1 - 1993 PY - 1993 DA - 1993 SP - 2.1 EP - 2.8 PB - U. S. Geological Survey, [Reston, VA] SN - 0092-332X, 0092-332X KW - models KW - hydrology KW - USGS KW - satellite methods KW - remote sensing KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50237085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Investigations+-+U.+S.+Geological+Survey&rft.atitle=Remote+sensing+for+hydrologic+models&rft.au=Engman%2C+Edwin+T%3BBurton%2C+James+S&rft.aulast=Engman&rft.aufirst=Edwin&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=2.1&rft.isbn=&rft.btitle=&rft.title=Water-Resources+Investigations+-+U.+S.+Geological+Survey&rft.issn=0092332X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Federal interagency workshop on Hydrologic modeling demands for the 90's N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 5 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA] N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - WRIND3 N1 - SubjectsTermNotLitGenreText - hydrology; models; remote sensing; satellite methods; USGS ER - TY - JOUR T1 - Late-glacial pollen, macrofossils and fish remains in northeastern U.S.A.; the Younger Dryas oscillation AN - 50237055; 1994-038661 JF - Quaternary Science Reviews AU - Peteet, D M AU - Daniels, R A AU - Heusser, L E AU - Vogel, J S AU - Southon, J R AU - Nelson, D E A2 - Walker, M. J. C. A2 - Lowe, J. J. Y1 - 1993 PY - 1993 DA - 1993 SP - 597 EP - 612 PB - Pergamon, Oxford VL - 12 IS - 8 SN - 0277-3791, 0277-3791 KW - Linsley Pond KW - Spermatophyta KW - Centrarchidae KW - mass spectra KW - needles KW - vegetation KW - paleoclimatology KW - Weichselian KW - carbon KW - absolute age KW - Younger Dryas KW - Salmonidae KW - organic carbon KW - Allamuchy Pond KW - Cypriniformes KW - Plantae KW - Chordata KW - Quaternary KW - biostratigraphy KW - fish scales KW - pollen diagrams KW - Teleostei KW - Northeastern U.S. KW - IGCP KW - Alpine Swamp KW - organic compounds KW - palynomorphs KW - Pleistocene KW - New Jersey KW - United States KW - isotopes KW - Osteichthyes KW - Coniferales KW - cores KW - Percidae KW - upper Pleistocene KW - Pisces KW - Cenozoic KW - upper Weichselian KW - radioactive isotopes KW - pollen KW - dates KW - Cyprinidae KW - Picea KW - sediments KW - New England KW - miospores KW - seeds KW - spectra KW - organic materials KW - Actinopterygii KW - assemblages KW - Gymnospermae KW - Eastern U.S. KW - Connecticut KW - spores KW - reconstruction KW - C-14 KW - Vertebrata KW - microfossils KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50237055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Science+Reviews&rft.atitle=Late-glacial+pollen%2C+macrofossils+and+fish+remains+in+northeastern+U.S.A.%3B+the+Younger+Dryas+oscillation&rft.au=Peteet%2C+D+M%3BDaniels%2C+R+A%3BHeusser%2C+L+E%3BVogel%2C+J+S%3BSouthon%2C+J+R%3BNelson%2C+D+E&rft.aulast=Peteet&rft.aufirst=D&rft.date=1993-01-01&rft.volume=12&rft.issue=8&rft.spage=597&rft.isbn=&rft.btitle=&rft.title=Quaternary+Science+Reviews&rft.issn=02773791&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02773791 LA - English DB - GeoRef N1 - Conference title - Records of the last deglaciation around the North Atlantic N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 75 N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - SuppNotes - IGCP Project No. 253 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Actinopterygii; Allamuchy Pond; Alpine Swamp; assemblages; biostratigraphy; C-14; carbon; Cenozoic; Centrarchidae; Chordata; Coniferales; Connecticut; cores; Cyprinidae; Cypriniformes; dates; Eastern U.S.; fish scales; Gymnospermae; IGCP; isotopes; Linsley Pond; mass spectra; microfossils; miospores; needles; New England; New Jersey; Northeastern U.S.; organic carbon; organic compounds; organic materials; Osteichthyes; paleoclimatology; palynomorphs; Percidae; Picea; Pisces; Plantae; Pleistocene; pollen; pollen diagrams; Quaternary; radioactive isotopes; reconstruction; Salmonidae; sediments; seeds; spectra; Spermatophyta; spores; Teleostei; United States; upper Pleistocene; upper Weichselian; vegetation; Vertebrata; Weichselian; Younger Dryas ER - TY - JOUR T1 - Late-Quaternary climate in the Ridge and Valley of Virginia, U.S.A.; changes in vegetation and depositional environment AN - 50235488; 1994-038662 JF - Quaternary Science Reviews AU - Kneller, Margaret AU - Peteet, Dorothy A2 - Walker, M. J. C. A2 - Lowe, J. J. Y1 - 1993 PY - 1993 DA - 1993 SP - 613 EP - 628 PB - Pergamon, Oxford VL - 12 IS - 8 SN - 0277-3791, 0277-3791 KW - United States KW - lithostratigraphy KW - isotopes KW - Appalachians KW - vegetation KW - paleoclimatology KW - cores KW - upper Pleistocene KW - Cenozoic KW - radioactive isotopes KW - pollen KW - dates KW - Central Appalachians KW - carbon KW - absolute age KW - miospores KW - depositional environment KW - Valley and Ridge Province KW - organic materials KW - North America KW - Virginia KW - Quaternary KW - assemblages KW - pollen diagrams KW - Browns Pond KW - IGCP KW - organic compounds KW - upper Quaternary KW - palynomorphs KW - Pleistocene KW - C-14 KW - microfossils KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50235488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Science+Reviews&rft.atitle=Late-Quaternary+climate+in+the+Ridge+and+Valley+of+Virginia%2C+U.S.A.%3B+changes+in+vegetation+and+depositional+environment&rft.au=Kneller%2C+Margaret%3BPeteet%2C+Dorothy&rft.aulast=Kneller&rft.aufirst=Margaret&rft.date=1993-01-01&rft.volume=12&rft.issue=8&rft.spage=613&rft.isbn=&rft.btitle=&rft.title=Quaternary+Science+Reviews&rft.issn=02773791&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02773791 LA - English DB - GeoRef N1 - Conference title - Records of the last deglaciation around the North Atlantic N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 73 N1 - Document feature - illus. incl. sect., 2 tables, sketch map N1 - SuppNotes - IGCP Project No. 253 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Appalachians; assemblages; Browns Pond; C-14; carbon; Cenozoic; Central Appalachians; cores; dates; depositional environment; IGCP; isotopes; lithostratigraphy; microfossils; miospores; North America; organic compounds; organic materials; paleoclimatology; palynomorphs; Pleistocene; pollen; pollen diagrams; Quaternary; radioactive isotopes; United States; upper Pleistocene; upper Quaternary; Valley and Ridge Province; vegetation; Virginia ER - TY - JOUR T1 - Greenland ice sheet surface properties and ice dynamics from ERS-1 SAR imagery AN - 25199004; 0107916 (EN); 0107916 (EA) AB - C-band synthetic aperture radar (SAR) imagery from the European Space Agency's ERS-1 satellite reveals the basic zonation of the surface of the Greenland Ice Sheet. The zones have backscatter signatures related to the structure of the snowpack, which varies with the balance of accumulation and melt at various elevations. The boundaries of zones can be accurately located with the use of this high-resolution imagery. The images also reveal a large flow feature in northeast Greenland that is similar to ice streams in Antarctica and may play a major role in the discharge of ice from the ice sheet. JF - Science (Washington) AU - Fahnestock, Mark AU - Bindschadler, Robert AU - Kwok, Ron AU - Jezek, Ken AD - Goddard Space Flight Cent (NASA/GSFC), Greenbelt, MD, USA PY - 1993 SP - 1530 EP - 1534 PB - American Association for the Advancement of Science, 1333 H St , NW, 8th Floor, Washington, DC, 20005, USA VL - 262 IS - 5139 SN - 0036-8075, 0036-8075 KW - Environmental Engineering (EN); Electronics & Communication (EA) KW - Radar imaging KW - Ice KW - Satellites KW - Synthetic aperture radar KW - Article KW - EE 716.2:RADAR SYSTEMS AND EQUIPMENT KW - EE 716.2:Radar Systems and Equipment KW - EE 443:METEOROLOGY KW - EE 443:Meteorology KW - EE 655.2:SATELLITES (EN) KW - EE 655.2:Satellites (EA) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25199004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Greenland+ice+sheet+surface+properties+and+ice+dynamics+from+ERS-1+SAR+imagery&rft.au=Fahnestock%2C+Mark%3BBindschadler%2C+Robert%3BKwok%2C+Ron%3BJezek%2C+Ken&rft.aulast=Fahnestock&rft.aufirst=Mark&rft.date=1993-01-01&rft.volume=262&rft.issue=5139&rft.spage=1530&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - RPRT T1 - Space measurements for determining the Earth's energy and water cycles. AN - 17011396; 3850798 AB - This report describes the increasing number of space data sets which are becoming available from current satellite sensors and which may be used to study the earth's global energy and water cycles. An attempt will be made to point out those aspects of each cycle which can be measured well globally and those components which still have large uncertainties. In the process of explaining the cycles, consideration will be given to the flux data from the Earth Radiation Budget Experiment (ERBE); the cloud observations from the global set of satellites participation in the International Satellite Cloud Climatology Project (ISCCP); the water vapor, precipitation, and cloud liquid water observations from the passive microwave radiometer named the Special Sensor Microwave Imager (SSM/I); and sea-surface temperatures from the Advanced Very High Resolution Radiometer (AVHRR). Some of these data are currently available through NOAA/NESDIS (National Environmental Satellite, Data, and Information Service) and/or NASA Distributed Active Archive Centers (DAAC's) or in CD-ROM data sets. Others will soon be available as part of the on-going NASA/NOAA Pathfinder Data Set Program. The report will conclude with a description of the additional value which will be obtained from the Tropical Rainfall Measuring Mission (TRMM) and Earth Observation Satellite (EOS) data in terms of attempting to understand the global cycles as well as trying to detect significant changes or trends over longer periods. AU - Dodge, J C Y1 - 1993 PY - 1993 DA - 1993 KW - Water Resources Abstracts KW - clouds KW - satellite technology KW - hydrologic cycle KW - precipitation KW - energy KW - remote sensing KW - SW 5040:Data acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17011396?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Water+Resources+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=Dodge%2C+J+C&rft.aulast=Dodge&rft.aufirst=J&rft.date=1993-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Space+measurements+for+determining+the+Earth%27s+energy+and+water+cycles.&rft.title=Space+measurements+for+determining+the+Earth%27s+energy+and+water+cycles.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - NTIS Order No: N94142270XSP N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Hydrologic modeling with remotely sensed databases AN - 16840848; 3565535 AB - An integrated remotely sensed database was used as the basis for a hydrologic and sediment transport modeling effort for an agricultural area of western Puerto Rico. Classified spectral images of airborne radiance data provided ground cover information and were used in conjunction with topographic and soils data to guide model construction and provide input to the water balance and sediment yield simulations. Runoff and sediment discharge from hydrologically homogeneous regions were routed through the drainage network and combined at the basin outlet. The model was used to simulate four years of observed sediment discharge from the basin. Relative contributions to the total sediment yield of forested and agricultural areas were determined and compared. JF - Water Resources Bulletin AU - Cruise, J F AU - Miller, R L AD - NASA Sci. and Technol. Lab., John C. Stennis Space Cent., Stennis Space Cent., MS 39529, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 997 EP - 1002 VL - 29 IS - 6 SN - 0043-1370, 0043-1370 KW - Puerto Rico KW - hydrologic models KW - image processing KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - hydrology KW - sediment transport KW - watersheds KW - mathematical models KW - Freshwater KW - runoff KW - data collections KW - land use KW - remote sensing KW - SW 5040:Data acquisition KW - Q2 09393:Remote geosensing KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16840848?accountid=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+Bulletin&rft.atitle=Hydrologic+modeling+with+remotely+sensed+databases&rft.au=Cruise%2C+J+F%3BMiller%2C+R+L&rft.aulast=Cruise&rft.aufirst=J&rft.date=1993-01-01&rft.volume=29&rft.issue=6&rft.spage=997&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&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 - hydrology; sediment transport; runoff; image processing; data collections; watersheds; mathematical models; land use; remote sensing; Puerto Rico; hydrologic models; Freshwater ER - TY - JOUR T1 - The radiative-equivalent water thickness of leaves AN - 16692901; 3501417 AB - The spectral transmittance of pure liquid water was measured using reflectance spectroscopy to provide a physical standard of comparison for the spectral reflectance of leaves. The spectral reflectance of a white reference measured through a 356 mu m ray pathlength of water compared favorably with values predicted for the same pathlength by the known absorption coefficients of water. Differences between predicted and measured reflectances were significant only near wavelengths of 1400 nm and in the 1965-2200 nm range. The maximum difference of 7% occurred at 1401 nm. Predicted reflectances indicated notable reflectance minima at wavelengths near 1450 nm, 1940 nm, and 2500 nm, even for a 5- mu m ray pathlength. Predicted reflectances at wavelengths less than 900 nm remained approximately 100% for a 3160 mu m pathlength. A method is provided by which leaf reflectance in the 1500-2500 nm range can be used to easily compute the radiative-equivalent water thickness (REWT) of leaves. The REWT is defined as the thickness (absorption pathlength) of pure liquid water that would be required to yield the same radiative properties as the leaf in the 1500-2500 nm range, and is a physical standard that may be used in the study of leaf infrared reflectance. JF - Remote Sensing of Environment AU - Downing, H G AU - Carter, G A AU - Holladay, K W AU - Cibula, W G AD - Sci. Technol. Lab., NASA, Stennis Space Cent., MS 39529, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 103 EP - 107 VL - 46 IS - 1 SN - 0034-4257, 0034-4257 KW - Ecology Abstracts KW - water content KW - leaves KW - reflectance KW - remote sensing KW - D 04625:Plants - general KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16692901?accountid=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=Remote+Sensing+of+Environment&rft.atitle=The+radiative-equivalent+water+thickness+of+leaves&rft.au=Downing%2C+H+G%3BCarter%2C+G+A%3BHolladay%2C+K+W%3BCibula%2C+W+G&rft.aulast=Downing&rft.aufirst=H&rft.date=1993-01-01&rft.volume=46&rft.issue=1&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&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 - reflectance; leaves; water content; remote sensing ER - TY - JOUR T1 - Heterogeneous reaction probabilities, solubilities, and the physical state of cold volcanic aerosols. AN - 16666191; 3029301 AB - On 19 January 1992, heterogeneous loss of HNO sub(3), ClNO sub(3), and HCl was observed in part of the Mount Pinatubo volcanic cloud that had cooled as a result of forced ascent. Portions of the volcanic cloud froze near 191 kelvin. The reaction probability of ClNO sub(3) and the solubility of HNO sub(3) were close to laboratory measurements on liquid sulfuric acid. The magnitude of the observed loss of HCl suggests that it underwent a heterogeneous reaction. Such reactions could lead to substantial loss of HCl on background sulfuric acid particles and so be important for polar ozone loss. JF - Science (Washington) AU - Toon, O AU - Browell, E AU - Gary, B AU - Lait, L AU - Livingston, J AU - Newman, P AU - Pueschel, R AU - Russell, P AU - Schoeberl, M AD - NASA Ames Res. Cent., Moffett Field, CA 94035, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 1136 EP - 1140 VL - 261 IS - 5125 SN - 0036-8075, 0036-8075 KW - Philippines, Mount Pinatubo KW - sulphuric acid KW - Pollution Abstracts KW - chemical reactions KW - aerosols KW - volcanoes KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16666191?accountid=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=Science+%28Washington%29&rft.atitle=Heterogeneous+reaction+probabilities%2C+solubilities%2C+and+the+physical+state+of+cold+volcanic+aerosols.&rft.au=Toon%2C+O%3BBrowell%2C+E%3BGary%2C+B%3BLait%2C+L%3BLivingston%2C+J%3BNewman%2C+P%3BPueschel%2C+R%3BRussell%2C+P%3BSchoeberl%2C+M&rft.aulast=Toon&rft.aufirst=O&rft.date=1993-01-01&rft.volume=261&rft.issue=5125&rft.spage=1136&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - volcanoes; aerosols; chemical reactions ER - TY - JOUR T1 - Stratospheric meteorological conditions in the Arctic polar vortex, 1991 to 1992. AN - 16664284; 3021014 AB - Stratospheric meteorological conditions during the Airborne Arctic Stratospheric Expedition II (AASE II) presented excellent observational opportunities from Bangor, Maine, because the polar vortex was located over southeastern Canada for significant periods during the 1991-1992 winter. Temperature analyses showed that nitric acid trihydrates (NAT temperatures below 195 k) should have formed over small regions in early December. The temperatures in the polar vortex warmed beyond NAT temperatures by late January (earlier than normal). Perturbed chemistry was found to be associated with these cold temperatures. JF - Science (Washington) AU - Newman, P AU - Lait, L R AU - Schoeberl, M AU - Nash, E R AU - Kelly, K AU - Fahey, D W AU - Nagatani, R AU - Toohey, D AU - Avallone, L AU - Anderson, J AD - NASA, Goddard Space Flight Cent., Code 916, Greenbelt, MD 20771, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 1143 EP - 1146 VL - 261 IS - 5125 SN - 0036-8075, 0036-8075 KW - Pollution Abstracts KW - chemical reactions KW - stratosphere KW - meteorology KW - Arctic KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16664284?accountid=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=Science+%28Washington%29&rft.atitle=Stratospheric+meteorological+conditions+in+the+Arctic+polar+vortex%2C+1991+to+1992.&rft.au=Newman%2C+P%3BLait%2C+L+R%3BSchoeberl%2C+M%3BNash%2C+E+R%3BKelly%2C+K%3BFahey%2C+D+W%3BNagatani%2C+R%3BToohey%2C+D%3BAvallone%2C+L%3BAnderson%2C+J&rft.aulast=Newman&rft.aufirst=P&rft.date=1993-01-01&rft.volume=261&rft.issue=5125&rft.spage=1143&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Arctic; stratosphere; meteorology; chemical reactions ER - TY - JOUR T1 - Reflectivities of selected land surface types at 19 and 37 GHz from SSM/I observations. AN - 16614053; 3036662 AB - Surface reflectivities for horizontally and vertically polarized emission at 19 GHz and 37 GHz are calculated for two locations over sand deserts, one location each over a rainforest, and a savanna from daytime observations by the Special Sensor Microwave Imager (SSM/I) on board the DMSP-F8 satellite for the period January 1988 to December 1989. The calculated reflectivities over the deserts are compared against predictions from the Fresnel equations, while the reflectivities over the rainforest are compared against predictions from a radiative transfer model and with field observations. The temporal variation of the reflectivities over the savanna is discussed in relation to those over deserts and rainforest, and in terms of biomass growth and decay. These SSM/I observations can be used to study seasonal and interannual changes of vegetation cover. JF - Remote Sensing of Environment AU - Choudhury, B J AD - Hydrol. Sci. Branch, NASA/GSFC, Code 974, Greenbelt, MD 20771, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 1 EP - 17 VL - 46 IS - 1 SN - 0034-4257, 0034-4257 KW - Egypt KW - Ecology Abstracts KW - Saudi Arabia KW - Burkina Faso KW - rain forests KW - Gabon KW - satellites KW - reflectance KW - deserts KW - remote sensing KW - savannahs KW - D 04100:Terrestrial ecosystems - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16614053?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Reflectivities+of+selected+land+surface+types+at+19+and+37+GHz+from+SSM%2FI+observations.&rft.au=Choudhury%2C+B+J&rft.aulast=Choudhury&rft.aufirst=B&rft.date=1993-01-01&rft.volume=46&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gabon; Saudi Arabia; Burkina Faso; deserts; rain forests; savannahs; reflectance; remote sensing; satellites ER - TY - JOUR T1 - Ozone and aerosol changes during the 1991-1992 airborne Arctic stratospheric expedition. AN - 16594669; 3029303 AB - Stratospheric ozone and aerosol distributions were measured across the wintertime Arctic vortex from January to March 1992 with an airborne lidar system as part of the 1992 Airborne Arctic Stratospheric Expedition (AASE II). Aerosols from the Mount Pinatubo eruption were found outside and inside the vortex with distinctly different distributions that clearly identified the dynamics of the vortex. Changes in aerosols inside the vortex indicated advection of air from outside to inside the vortex below 16 kilometers. No polar stratospheric clouds were observed and no evidence was found for frozen volcanic aerosols inside the vortex. Between January and March, ozone depletion was observed inside the vortex from 14 to 20 kilometers with a maximum average loss of about 23 percent near 18 kilometers. JF - Science (Washington) AU - Browell, E V AU - Butler, C F AU - Fenn, MA AU - Grant, W B AU - Ismail, S AU - Schoeberl, M R AU - Toon, O B AU - Loewenstein, M AU - Podolske, J R AD - Atmos. Sci. Div., NASA Langley Res. Cent., Hampton, VA 23681, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 1155 EP - 1158 VL - 261 IS - 5125 SN - 0036-8075, 0036-8075 KW - Philippines, Mount Pinatubo KW - Pollution Abstracts KW - ozone KW - stratosphere KW - volcanoes KW - aerosols KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16594669?accountid=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=Science+%28Washington%29&rft.atitle=Ozone+and+aerosol+changes+during+the+1991-1992+airborne+Arctic+stratospheric+expedition.&rft.au=Browell%2C+E+V%3BButler%2C+C+F%3BFenn%2C+MA%3BGrant%2C+W+B%3BIsmail%2C+S%3BSchoeberl%2C+M+R%3BToon%2C+O+B%3BLoewenstein%2C+M%3BPodolske%2C+J+R&rft.aulast=Browell&rft.aufirst=E&rft.date=1993-01-01&rft.volume=261&rft.issue=5125&rft.spage=1155&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - ozone; aerosols; stratosphere; volcanoes ER - TY - JOUR T1 - The atmospheric CH sub(4) increase since the Last Glacial Maximum (2). Interactions with oxidants AN - 16572982; 3637769 AB - Two studies of the effect of changing CH sub(4) fluxes on global tropospheric oxidant levels, O sub(3), OH, H sub(2)O sub(2), have been performed with a multi-box photochemical model. (1) A sensitivity study is made by scaling back CH sub(4), CO and NO emissions relative to present-day budgets. When the CH sub(4) ice core record is compared to calculated CH sub(4) abundances, corresponding CH sub(4) fluxes for the pre-industrial Holocene (PIH) and Last Glacial Maximum (LGM) are fairly well-constrained: 175-225 Tg CH sub(4)/yr for PIH and 100-130 Tg CH sub(4)/yr for LGM. Except for OH at fluxes of 100-200 Tg CH sub(4)/yr, preindustrial oxidant concentrations levels are not narrowly defined by the CH sub(4) record. The small range of CH sub(4) flux and OH abundance at the LGM is due to strong CH sub(4)-OH feedbacks. (2) Specific scenarios for CH sub(4)/CO/NO are selected to represent sources for the PIH and LGM. The CH sub(4) budget is taken from an evaluation of wetlands and other natural sources. Calculated preindustrial oxidant changes are in reasonable agreement with other studies based on one-, two- and three-dimensional models, although differences among model physics preclude a definitive comparison. There is consensus that OH has decreased since the Last Glacial Maximum, in contrast to projections for future OH, on which models are in disagreement. Model validation of oxidant concentrations requires more ice-core data. Preindustrial OH would be inferred best by using a model with ice-core measurements of species that are uncoupled from the CH sub(4)-CO-OH-O sub(3) cycle. Candidates might be marine gases of moderately long lifetime, e.g., CH sub(3)Cl or OCS. JF - Tellus. Series B: Chemical and Physical Meteorology AU - Thompson, A M AU - Chappellaz, JA AU - Fung, I Y AU - Kucsera, T L AD - NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 242 EP - 257 VL - 45B IS - 3 SN - 0280-6509, 0280-6509 KW - Pollution Abstracts KW - emissions KW - methane KW - atmosphere KW - troposphere KW - wetlands KW - photochemicals KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16572982?accountid=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=Tellus.+Series+B%3A+Chemical+and+Physical+Meteorology&rft.atitle=The+atmospheric+CH+sub%284%29+increase+since+the+Last+Glacial+Maximum+%282%29.+Interactions+with+oxidants&rft.au=Thompson%2C+A+M%3BChappellaz%2C+JA%3BFung%2C+I+Y%3BKucsera%2C+T+L&rft.aulast=Thompson&rft.aufirst=A&rft.date=1993-01-01&rft.volume=45B&rft.issue=3&rft.spage=242&rft.isbn=&rft.btitle=&rft.title=Tellus.+Series+B%3A+Chemical+and+Physical+Meteorology&rft.issn=02806509&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 - methane; photochemicals; troposphere; emissions; atmosphere; wetlands ER - TY - JOUR T1 - Seasonal variation in the structure and red reflectance of leaves from yellow poplar, red oak, and red maple. AN - 16430323; 2906958 AB - A laboratory goniometer was used to measure the light scattered from leaves as a function of view angle in the principal plane for yellow poplar (Liriodendron tulipifera L.), red oak (Quercus rubra L.), and red maple (Acer rubrum L.). The source was a parallel-polarized helium-neon laser (632.8 mu m). Yellow poplar leaves had the highest reflectance of the three species, which may have been due to its shorter palisade cells and more extensive spongy mesophyll. Prior to senescence, there was a significant decrease, but not total extinction, in the reflectance of the beam incident at 60 degree from nadir on the adaxial (upper) side of the leaves of all three species. This was interpreted as a Brewster angle effect. The reflectance increased as the leaves senesced. JF - Remote Sensing of Environment AU - Brakke, T W AU - Wergin, W P AU - Erbe, E F AU - Harnden, J M AD - Biosp. Sci. Branch, Code 923, NASA Goddard Space Flight Cent., Greenbelt, MD 20771, USA Y1 - 1993 PY - 1993 DA - 1993 SP - 115 EP - 130 VL - 43 IS - 2 SN - 0034-4257, 0034-4257 KW - colour KW - Ecology Abstracts KW - Quercus rubra KW - Liriodendron tulipifera KW - seasonal variations KW - leaves KW - Acer rubrum KW - reflectance KW - USA, Maryland KW - remote sensing KW - D 04640:Other angiosperms KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16430323?accountid=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=Remote+Sensing+of+Environment&rft.atitle=Seasonal+variation+in+the+structure+and+red+reflectance+of+leaves+from+yellow+poplar%2C+red+oak%2C+and+red+maple.&rft.au=Brakke%2C+T+W%3BWergin%2C+W+P%3BErbe%2C+E+F%3BHarnden%2C+J+M&rft.aulast=Brakke&rft.aufirst=T&rft.date=1993-01-01&rft.volume=43&rft.issue=2&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Liriodendron tulipifera; Quercus rubra; Acer rubrum; USA, Maryland; remote sensing; reflectance; leaves; seasonal variations ER - TY - JOUR T1 - Alteration products of basaltic lava; an electron microscopy study AN - 1420510226; 2013-063954 JF - Program and Abstracts - Annual Clay Minerals Conference AU - Golden, D C AU - Ming, D W AU - Morris, R V AU - Berry, W Richard Y1 - 1993 PY - 1993 DA - 1993 SP - 136 PB - Clay Minerals Society, [s. l.] VL - 30 KW - United States KW - silicates KW - alteration KW - Hawaii Island KW - volcanic rocks KW - Hawaii County Hawaii KW - igneous rocks KW - clay mineralogy KW - Mauna Kea KW - Hawaii KW - East Pacific Ocean Islands KW - Puu Nene cinder cone KW - weathering KW - TEM data KW - clay minerals KW - lava KW - basalts KW - Oceania KW - sheet silicates KW - Polynesia KW - crystal chemistry KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1420510226?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+-+Annual+Clay+Minerals+Conference&rft.atitle=Alteration+products+of+basaltic+lava%3B+an+electron+microscopy+study&rft.au=Golden%2C+D+C%3BMing%2C+D+W%3BMorris%2C+R+V%3BBerry%2C+W+Richard&rft.aulast=Golden&rft.aufirst=D&rft.date=1993-01-01&rft.volume=30&rft.issue=&rft.spage=136&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+Annual+Clay+Minerals+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Clay Minerals Society 30th annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-08-15 N1 - CODEN - CMCPCT N1 - SubjectsTermNotLitGenreText - alteration; basalts; clay mineralogy; clay minerals; crystal chemistry; East Pacific Ocean Islands; Hawaii; Hawaii County Hawaii; Hawaii Island; igneous rocks; lava; Mauna Kea; Oceania; Polynesia; Puu Nene cinder cone; sheet silicates; silicates; TEM data; United States; volcanic rocks; weathering ER - TY - JOUR T1 - 3-D characterization of the mineralogy and physical properties of hydrous interplanetary dust particles AN - 1420510004; 2013-063882 JF - Program and Abstracts - Annual Clay Minerals Conference AU - Burken, Patti AU - Zolensky, Mike AU - Sapp, Clyde AU - Berry, W Richard Y1 - 1993 PY - 1993 DA - 1993 SP - 54 PB - Clay Minerals Society, [s. l.] VL - 30 KW - silicates KW - serpentine KW - asteroids KW - three-dimensional models KW - saponite KW - properties KW - interplanetary dust KW - TEM data KW - clay minerals KW - genesis KW - cosmic dust KW - comets KW - serpentine group KW - sheet silicates KW - interpretation KW - SEM data KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1420510004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts+-+Annual+Clay+Minerals+Conference&rft.atitle=3-D+characterization+of+the+mineralogy+and+physical+properties+of+hydrous+interplanetary+dust+particles&rft.au=Burken%2C+Patti%3BZolensky%2C+Mike%3BSapp%2C+Clyde%3BBerry%2C+W+Richard&rft.aulast=Burken&rft.aufirst=Patti&rft.date=1993-01-01&rft.volume=30&rft.issue=&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+Annual+Clay+Minerals+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Clay Minerals Society 30th annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-08-15 N1 - CODEN - CMCPCT N1 - SubjectsTermNotLitGenreText - asteroids; clay minerals; comets; cosmic dust; genesis; interplanetary dust; interpretation; properties; saponite; SEM data; serpentine; serpentine group; sheet silicates; silicates; TEM data; three-dimensional models ER - TY - JOUR T1 - Measurement of river level variations with satellite altimetry AN - 13697164; 199304062 AB - Initial results from studies of the applicability of satellite altimetry to the measurement of changes in river water levels using the U.S. Navy Geodetic Satellite (Geosat) are reported. Provided the orbital repeat cycle is short enough, the ground track maintains a stable repeat over previous locations, and the return power of th altimeter signal can be readily identified and located, satellite altimetry offers a repetitive remote sensing approach to the determination of river levels at several locations within a river system. Studies of the Amazon basin are discussed. Initial difficulties are expected to be resolved by more recent altimeter satellites. JF - Water Resources Research AU - Koblinsky, C J AU - Clarke, R T AU - Brenner, A C AU - Frey, H AD - NASA, Greenbelt, Md. Y1 - 1993 PY - 1993 DA - 1993 SP - 1839 EP - 1848 VL - 29 IS - 6 SN - 0043-1397, 0043-1397 KW - Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13697164?accountid=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=Measurement+of+river+level+variations+with+satellite+altimetry&rft.au=Koblinsky%2C+C+J%3BClarke%2C+R+T%3BBrenner%2C+A+C%3BFrey%2C+H&rft.aulast=Koblinsky&rft.aufirst=C&rft.date=1993-01-01&rft.volume=29&rft.issue=6&rft.spage=1839&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 - 2000-09-01 N1 - SuppNotes - Publication focus: Application. N1 - Last updated - 2011-12-12 ER -