 FORMER STUDENTS Matthew Chamberlain, 2005 (PTYS) Alan Hildebrand, 1992 (PTYS) John Keller, 2006 (PTYS) Alex Ruzicka, 1996 (PTYS) Anna Spitz, 1991 (Geosciences) CURRENT POSTDOC(S) Julia Bodnarik FORMER POSTDOC(S) David Kring Andrea Patzer David Wark Daniel Janes | William Boynton ProfessorCosmochemistry, geochemistry, astrobiology Ph.D., 1971, Carnegie Mellon Kuiper #532 621-6941  Years with LPL: 1977 to present RESEARCH INTERESTS Dr. Boynton's current research is centered on understanding the role of volatile materials, chiefly water, carbon dioxide and argon, as probes for planetary processes. Data from instruments on NASA missions, Mars Odyssey Gamma-Ray spectrometer (GRS), Phoenix Thermal and Evolved-Gas analyzer (TEGA), and the Lunar Reconnaissance Orbiter Lunar Exploration Neutron Detector (LEND) are used to map out the location of these volatiles, and in the case of Mars, to study their changes with season. The GRS data are used to determine the changes of Ar in the atmosphere and of CO2 ice in the polar regions as probes of global atmospheric circulation. Data from this instrument, combined with those from TEGA, are also used to determine the extent and nature of subsurface ice on Mars. The data from LEND are used to determine the amount and location of hydrogen, presumably in some form of H2O or OH, in the lunar polar regions. This information is used to constrain processes for migration of water, perhaps delivered by cometary impact, or the formation of OH by reaction with H in the solar wind. CV for Dr. Boynton (PDF) CURRENT GRANTS
CURRENT SPACECRAFT INVOLVEMENT MESSENGER (Gamma-Ray and Neutron Spectrometer and X-Ray Spectrometer); Team Lead for analysis of geochemical remote sensing measurements Lunar Reconnaissance Orbiter (LRO, Lunar Exploration Neutron Detector) Mars Science Laboratory (Dynamic Albedo of Neutrons) OSIRIS-REx (Mission Instrument Scientist) FORMER SPACECRAFT INVOLVEMENT Mars Observer, Team Leader: Gamma-Ray Spectrometer Mars Odyssey Orbiter, PI: Gamma-Ray Spectrometer Mars Polar Lander, PI: Differential Scanning Calorimeter and Evolved Gas Analyzer PHOENIX Mars Mission, PI: Thermal and Evolved Gas Analyzer Cassini, Co-investigator: Surface Science Package ADS PUBLICATIONS SEARCH NASA ADS Author search: William V. Boynton SELECTED PUBLICATIONS Evans, L. G., et al. Major-element abundances on the surface of Mercury: Results from the MESSENGER Gamma-Ray Spectrometer 2012JGRE..11700L07E Mitrofanov, I., Boynton, W. Comment on “Statistics for orbital neutron spectroscopy of the Moon and other planetary bodies” by R. S. Miller 2012JGRE..11710003M Vybornov, V. I., et al. Observation of the powerful solar flare of October 27, 2002 on the far side of the sun 2012ARep...56..805V Mitrofanov, I. G., et al. SN 2010ay is a Luminous and Broad-lined Type Ic Supernova within a Low-metallicity Host Galaxy 2012ApJ...756..184S Mitrofanov, I., et al. Testing lunar permanently shadowed regions for water ice: LEND results from LRO 2012JGRE..11700H26S Litvak, M. L., et al. The detection of carbonate in the martian soil at the Phoenix Landing site: A laboratory investigation and comparison with the Thermal and Evolved Gas Analyzer (TEGA) data 2012Icar..218..290S Rhodes, E. A., et al. Analysis of MESSENGER Gamma-Ray Spectrometer data from the Mercury flybys 2011P&SS...59.1829R Hurley, K., et al. Radioactive Elements on Mercury’s Surface from MESSENGER: Implications for the Planet’s Formation and Evolution 2011Sci...333.1850P Nittler, L. R., et al. The Major-Element Composition of Mercury’s Surface from MESSENGER X-ray Spectrometry 2011Sci...333.1847N Weider, S. Z., et al. Major-Element Abundances of Surface Materials on Mercury: First Results from the MESSENGER X-Ray Spectrometer 2011M&PSA..74.5357W Peplowski, P. N., et al. Abundances of Radioactive Elements on the Surface of Mercury: First Results from the MESSENGER Gamma-Ray Spectrometer 2011M&PSA..74.5353P Hurley, K., et al. The Interplanetary Network Supplement to the Burst and Transient Source Experiment 5B Catalog of Cosmic Gamma-Ray Bursts 2011ApJS..196....1H Livshits, M. A., et al. Culmination of the flare activity of Group 10786 in July 2005: X-Ray observations from near-mars and near-earth orbits 2011ARep...55..551L Abadie, J., et al. Search for Gravitational Wave Bursts from Six Magnetars 2011ApJ...734L..35A Moores, J. E., Smith, P. H., Boynton, W. V. Adsorptive fractionation of HDO on JSC MARS-1 during sublimation with implications for the regolith of Mars 2011Icar..211.1129M Zeitlin, C., et al. Mars Odyssey measurements of galactic cosmic rays and solar particles in Mars orbit, 2002-2008 2010SpWea...800E06Z Hurley, K., et al. The Interplanetary Network Supplement to the BeppoSAX Gamma-ray Burst Catalogs 2010ApJS..191..179H Mitrofanov, I. G., et al. Hydrogen Mapping of the Lunar South Pole Using the LRO Neutron Detector Experiment LEND 2010Sci...330..483M Boynton, W. The poetry of space 2010NatGe...3..664B Niles, P. B., et al. Stable Isotope Measurements of Martian Atmospheric CO2 at the Phoenix Landing Site 2010Sci...329.1334N Lawrence, D. J., et al. Identification and measurement of neutron-absorbing elements on Mercury’s surface 2010Icar..209..195L Kminek, G., et al. Report of the COSPAR mars special regions colloquium 2010AdSpR..46..811K Taylor, G. J., et al. K and Cl concentrations on the Martian surface determined by the Mars Odyssey Gamma Ray Spectrometer: Implications for bulk halogen abundances in Mars 2010GeoRL..3712204T Gasnault, O., et al. Quantitative geochemical mapping of martian elemental provinces 2010Icar..207..226G Hurley, K., et al. A new analysis of the short-duration, hard-spectrum GRB 051103, a possible extragalactic soft gamma repeater giant flare 2010MNRAS.403..342H Mitrofanov, I. G., et at. Lunar Exploration Neutron Detector for the NASA Lunar Reconnaissance Orbiter 2010SSRv..150..183M Kounaves, S. P., et al. Wet Chemistry experiments on the 2007 Phoenix Mars Scout Lander mission: Data analysis and results 2010JGRE..11500E10K Karunatillake, S., et al. Chemically striking regions on Mars and Stealth revisited 2009JGRE..11412001K El Maarry, M. R., et al. Gamma-ray constraints on the chemical composition of the martian surface in the Tharsis region: A signature of partial melting of the mantle? 2009JVGR..185..116E Dohm, J. M., et al. New evidence for a magmatic influence on the origin of Valles Marineris, Mars 2009JVGR..185...12D Dohm, J. M., et al. GRS evidence and the possibility of paleooceans on Mars 2009P&SS...57..664D Mellon, M. T., et al. A prelanding assessment of the ice table depth and ground ice characteristics in Martian permafrost at the Phoenix landing site 2008JGRE..11300A25M Giuliani, A., et al. AGILE detection of delayed gamma-ray emission from GRB 080514B 2008A&A...491L..25G Ming, D. W., et al. Mars 2007 Phoenix Scout mission Organic Free Blank: Method to distinguish Mars organics from terrestrial organics 2008JGRE..11300A21M Smith, P. H., et al. Introduction to special section on the Phoenix Mission: Landing Site Characterization Experiments, Mission Overviews, and Expected Science 2008JGRE..11300A18S Demidov, N. E., et al. Water distribution in Martian permafrost regions from joint analysis of HEND (Mars Odyssey) and MOLA (Mars Global Surveyor) data 2008AstL...34..713D Mitrofanov, I. G., et al. Experiment LEND of the NASA Lunar Reconnaissance Orbiter for High-Resolution Mapping of Neutron Emission of the Moon 2008AsBio...8..793M Patzer, A., Hill, D. H., Boynton, W. V. Evolution of acapulcoites and lodranites revisited 2008GeCAS..72R.728P Litvak, M. L., et al. The Dynamic Albedo of Neutrons (DAN) Experiment for NASA's 2009 Mars Science Laboratory 2008AsBio...8..605L Dohm, J. M., et al. Recent geological and hydrological activity on Mars: The Tharsis/Elysium corridor 2008P&SS...56..985D Haberle, R. M., et al. The effect of ground ice on the Martian seasonal CO2 cycle 2008P&SS...56..251H Boynton, W. V., et al. Concentration of H, Si, Cl, K, Fe, and Th in the low- and mid-latitude regions of Mars 2007JGRE..11212S99B Litvak, M. L., et al. Long-term observations of the evolution of the southern seasonal cap of Mars: Neutron measurements by the HEND instrument onboard the 2001 Mars Odyssey spacecraft 2007SoSyR..41..385L Luhmann, J. G., et al. Solar energetic particles in near-Mars space 2007JGRE..11210001L Dohm, J. M., et al. Possible ancient giant basin and related water enrichment in the Arabia Terra province, Mars 2007Icar..190...74D Mitrofanov, I. G., et al. Water ice permafrost on Mars: Layering structure and subsurface distribution according to HEND/Odyssey and MOLA/MGS data 2007GeoRL..3418102M Schlemm, C. E., et al. The X-Ray Spectrometer on the MESSENGER Spacecraft 2007SSRv..131..393S Goldsten, J. O., et al. The MESSENGER Gamma-Ray and Neutron Spectrometer 2007SSRv..131..339G Boynton, W. V., et al. MESSENGER and the Chemistry of Mercury's Surface 2007SSRv..131...85B Kim, K. J., et al. Neutron and Gamma-Ray Production in Martian Surface Soil and Rock 2007M&PSA..42.5227K Nelli, S. M., et al. Dissecting the polar dichotomy of the noncondensable gas enhancement on Mars using the NASA Ames Mars General Circulation Model 2007JGRE..11208S91N Karunatillake, S., et al. Chemical compositions at Mars landing sites subject to Mars Odyssey Gamma Ray Spectrometer constraints 2007JGRE..11208S90K Chamberlain, M. A., Boynton, W. V. Response of Martian ground ice to orbit-induced climate change 2007JGRE..11206009C Kuzmin, R. O., et al. Seasonal redistribution of water in the surficial Martian regolith: Results from the Mars Odyssey high-energy neutron detector (HEND) 2007SoSyR..41...89K Litvak, M. L., et al. Long-term observations of southern winters on Mars: Estimations of column thickness, mass, and volume density of the seasonal CO2 deposit from HEND/Odyssey data 2007JGRE..11203S13L Newsom, H. E., et al. Geochemistry of Martian soil and bedrock in mantled and less mantled terrains with gamma ray data from Mars Odyssey 2007JGRE..11203S12N Hahn, B. C., et al. Mars Odyssey Gamma Ray Spectrometer elemental abundances and apparent relative surface age: Implications for Martian crustal evolution 2007JGRE..11203S11H Sprague, A. L., et al. Mars' atmospheric argon: Tracer for understanding Martian atmospheric circulation and dynamics 2007JGRE..11203S02S Taylor, G. J., et al. Bulk composition and early differentiation of Mars 2006JGRE..11103S10T Kim, K. J., et al. Theoretical fluxes of gamma rays from the Martian surface 2006JGRE..11103S09K Keller, J. M., et al. Equatorial and midlatitude distribution of chlorine measured by Mars Odyssey GRS 2006JGRE..11103S08K Kelly, N. J., et al. Seasonal polar carbon dioxide frost on Mars: CO2 mass and columnar thickness distribution 2006JGRE..11103S07K Taylor, G. J., et al. Variations in K/Th on Mars 2006JGRE..11103S06T Karunatillake, S., et al. Composition of northern low-albedo regions of Mars: Insights from the Mars Odyssey Gamma Ray Spectrometer 2006JGRE..11103S05K Evans, L. G., et al. Analysis of gamma ray spectra measured by Mars Odyssey 2006JGRE..11103S04E Basilevsky, A. T., et al. Search for causes of the low epithermal neutron flux anomaly in the Arabia Terra region (Mars) 2006SoSyR..40..355B Sprague, A. L., et al. Mars atmospheric water vapor abundance: 1991 1999, emphasis 1998 1999 2006Icar..184..372S The MEPAG Special Regions-Science Analysis Group. Findings of the Mars Special Regions Science Analysis Group 2006AsBio...6..677. Lorenz, R. D., Boynton, W. V., Turner, C. Demonstration of comet sample collection by penetrator 2006AcAau..59.1000L Boynton, W. V., et al. Elemental Maps of Mars from the Mars Odyssey Gamma-Ray Spectrometer 2006M&PSA..41.5351B Morgan, D. D., et al. Solar control of radar wave absorption by the Martian ionosphere 2006GeoRL..3313202M Hurley, K., et al. Mars Odyssey Joins the Third Interplanetary Network 2006ApJS..164..124H Litvak, M. L., et al. Comparison between polar regions of Mars from HEND/Odyssey data 2006Icar..180...23L Hurley, K., et al. The Mars Odyssey experiments in the third interplanetary network 2006AdSpR..38.1312H Jakosky, B. M., et al. Erratum to “Mars low-latitude neutron distribution: Possible remnant near-surface water ice and a mechanism for its recent emplacement” [Icarus 175 (2005) 58 67] 2005Icar..178..291J Livshits, M. A., et al. Hard X-ray and Gamma-Ray Flares on the Sun: Stereoscopic Effects near the Limb from Observations on the 2001 Mars Odyssey Spacecraft and Near-Earth Spacecraft 2005ARep...49..916L McLennan, S. M., et al. Odyssey GRS and SNC Meteorite Evidence for Multiple LIL-enriched Reservoirs on Mars 2005M&PSA..40.5251M Patzer, A., et al. The new polymict eucrite Dar al Gani 983: Petrography, chemical composition, noble gas record, and evolution 2005M&PS...40..869P Jakosky, B. M., et al. Mars low-latitude neutron distribution: Possible remnant near-surface water ice and a mechanism for its recent Emplacement 2005Icar..175...58J Janes, D. M., Boynton, W. V., Distribution of some elemental abundances on Mars: Results from the Mars 2001 Odyssey gamma ray spectrometer 2005GeCAS..69..530J Hurley, K., et al. An exceptionally bright flare from SGR 1806-20 and the origins of short-duration γ-ray bursts 2005Natur.434.1098H Litvak, M. Let al. Modeling of Martian seasonal caps from HEND/ODYSSEY data 2005AdSpR..36.2156L Sprague, A. L., et al. Mars' South Polar Ar Enhancement: A Tracer for South Polar Seasonal Meridional Mixing 2004Sci...306.1364S Patzer, A., et al. New findings for the equilibrated enstatite chondrite Grein 002 2004M&PS...39.1555P Feldman, W. C., et al. Global distribution of near-surface hydrogen on Mars 2004JGRE..10909006F Boynton, W., et al. Maps of Elemental Abundances on the Surface of Mars 2004M&PSA..39.5206B Mitrofanov, I. G., et al. Soil Water Content on Mars as Estimated from Neutron Measurements by the HEND Instrument Onboard the 2001 Mars Odyssey Spacecraft 2004SoSyR..38..253M Litvak, M. L., et al. Seasonal Carbon Dioxide Depositions on the Martian Surface as Revealed from Neutron Measurements by the HEND Instrument Onboard the 2001 Mars Odyssey Spacecraft 2004SoSyR..38..167L Prettyman, T. H., et al. Composition and structure of the Martian surface at high southern latitudes from neutron spectroscopy 2004JGRE..10905001P Boynton, W. V., et al. The Mars Odyssey Gamma-Ray Spectrometer Instrument Suite 2004SSRv..110...37B Saunders, R. S., et al. 2001 Mars Odyssey Mission Summary 2004SSRv..110....1S Kuzmin, R. O., et al. Regions of Potential Existence of Free Water (Ice) in the Near-Surface Martian Ground: Results from the Mars Odyssey High-Energy Neutron Detector (HEND) 2004SoSyR..38....1K Patzer, A., Hill, D. H., Boynton, W. V. Evolution and classification of acapulcoites and lodranites from a chemical point of view 2004M&PS...39...61P Kring, D. A., et al. Composition of the first bulk melt sample from a volcanic region of Mars: Queen Alexandra Range 94201 2003M&PS...38.1833K Basilevsky, A. T., et al. Search for Traces of Chemically Bound Water in the Martian Surface Layer Based on HEND Measurements onboard the 2001 Mars Odyssey Spacecraft 2003SoSyR..37..387B Litvak, M. L., et al. Seasonal Neutron-Flux Variations in the Polar Caps of Mars as Revealed by the Russian HEND Instrument Onboard the NASA 2001 Mars Odyssey Spacecraft 2003SoSyR..37..378L Mitrofanov, I. G., et al. Search for Water in Martian Soil Using Global Neutron Mapping by the Russian HEND Instrument Onboard the US 2001 Mars Odyssey Spacecraft 2003SoSyR..37..366M Feldman, W. C., et al. CO2 frost cap thickness on Mars during northern winter and spring 2003JGRE..108.5103F Reedy, R. C., Boynton, W. V., Taylor, G. J., Multi-elemental maps from the Mars Odyssey gamma ray spectrometer 2003GeCAS..67Q.394R Reedy, R. C., et al. Martian Multi-Elemental Maps from the Mars Odyssey Gamma-Ray Spectrometer 2003M&PSA..38.5261R Patzer, A., et al. DaG 983: A Complex (Polymict, Feldspar Cumulate, Impact Melt Breccia) Eucrite from Libya 2003M&PSA..38.5230P Mitrofanov, I. G., et al. CO2 Snow Depth and Subsurface Water-Ice Abundance in the Northern Hemisphere of Mars 2003Sci...300.2081M Price, P. A., et al. Discovery of GRB 020405 and Its Late Red Bump 2003ApJ...589..838P Patzer, A., Hill, D. H., Boynton, W. V. New eucrite Dar al Gani 872: Petrography, chemical composition, and evolution 2003M&PS...38..783P Hill, D. H., Boynton, W. V. Chemistry of the Calcalong Creek lunar meteorite and its relationship to lunar terranes 2003M&PS...38..595H Tokar, R. L., et al. Ice concentration and distribution near the south pole of Mars: Synthesis of odyssey and global surveyor analyses 2002GeoRL..29s..10T Boynton, W. V., et al. Distribution of Hydrogen in the Near Surface of Mars: Evidence for Subsurface Ice Deposits 2002Sci...297...81B Mitrofanov, I., et al. Maps of Subsurface Hydrogen from the High Energy Neutron Detector, Mars Odyssey 2002Sci...297...78M Feldman, W. C., et al. Global Distribution of Neutrons from Mars: Results from Mars Odyssey 2002Sci...297...75F Patzer, A., Hill, D. H., Boynton, W. V. The Evolution of Acapulcoites and Lodranites: An INAA Perspective 2002M&PSA..37R.115P Boynton, W. V., et al. Early Results of the Mars Odyssey Gamma-Ray Spectrometer (GRS): Ice and Other Cool Stuff 2002M&PSA..37R..21B Patzer, A., et al. Itqiy: A study of noble gases and oxygen isotopes including its terrestrial age and a comparison with Zaklodzie 2002M&PS...37..823P Feldman, W. C., et al. Fast neutron flux spectrum aboard Mars Odyssey during cruise 2002JGRA..107.1083F Solomon, S. C., et al. The MESSENGER mission to Mercury: scientific objectives and implementation 2001P&SS...49.1445S Nittler, L. R., et al. X-ray fluorescence measurements of the surface elemental composition of asteroid 433 Eros 2001M&PS...36.1673N McCoy, T. J., et al. The composition of 433 Eros: A mineralogical-chemical synthesis 2001M&PS...36.1661M Evans, L. G., et al. Elemental composition from gamma-ray spectroscopy of the NEAR-Shoemaker landing site on 433 Eros 2001M&PS...36.1639E Trombka, J. I., et al. The NEAR-Shoemaker x-ray/gamma-ray spectrometer experiment: Overview and lessons learned 2001M&PS...36.1605T Patzer, A., Hill, D. H., Boynton, W. V. Itqiy: A metal-rich enstatite meteorite with achondritic texture 2001M&PS...36.1495P McClanahan, T. P., et al. Spectral analysis and compositing techniques for the Near Earth Asteroid Rendezvous (NEAR Shoemaker), X-ray and Gamma-Ray Spectrometers (XGRS) 2001NIMPA.471..179M Patzer, A., et al. Itqiy: II. a Short Story About Its Noble Gases and Oxygen Isotopes 2001M&PSA..36..158P Boynton, W. V., et al. Elemental Composition of Asteroid 433 Eros: Results from the NEAR-Shoemaker X-Ray/Gamma-Ray Spectrometer and Comparison with Meteorites 2001M&PSA..36...27B Wark, D., Boynton, W. V. The formation of rims on calcium-aluminum-rich inclusions: Step I-Flash heating 2001M&PS...36.1135W Boynton, W. V., Quinn, R. C. Thermal and Evolved Gas Analyzer: Part of the Mars Volatile and Climate Surveyor integrated payload 2001JGR...10617683B May, R. D., et al, The MVACS tunable diode laser spectrometers 2001JGR...10617673M Starr, R., et al. Instrument Calibrations and Data Analysis Procedures for the NEAR X-Ray Spectrometer 2000Icar..147..498S Trombka, J. I., et al. The Elemental Composition of Asteroid 433 Eros: Results of the NEAR-Shoemaker X-ray Spectrometer 2000Sci...289.2101T Trombka, J. I., et al. The Chemical Composition of Asteroid 433 Eros: Preliminary Results of the NEAR-Shoemaker X-Ray/Gamma-Ray Spectrometer 2000M&PSA..35Q.159T Stow, D., Daeschner, S., Boynton, W. Arctic tundra functional types by classification of single-date and AVHRR bi-weekly NDVI composite Datasets 2000IJRS...21.1773S Evans, L. G., et al. Charged-particle induced radiation damage of a HPGe gamma-ray detector during spaceflight 1999NIMPA.422..586E McClanahan, T. P., et al. Data management and analysis techniques used in the near X-ray and gamma-ray spectrometer systems 1999NIMPA.422..582M Trombka, J. I., et al. Remote planetary geochemical exploration with the NEAR X-ray/gamma-ray spectrometer 1999NIMPA.422..572T Starr, R., et al. Cruise Measurements Taken with the Near XGRS 1999AdSpR..24.1163S Starr, R., et al. Cruise measurements taken with the near XGRS 1999AdSpR..24.1159S Blichert-Toft, J., et al. Martian Mantle Evolution from the Hafnium Isotope Perspective 1998M&PSA..33Q..16B Swindle, T. D., et al. Noble gases, bulk chemistry, and petrography of olivine-rich achondrites Eagles Nest and LEW88763: Comparison to brachinites 1998M&PS...33...31S Goldsten, J. O., et al. The X-ray/Gamma-ray Spectrometer on the Near Earth Asteroid Rendezvous Mission 1997SSRv...82..169G Trombka, J. I., et al. Compositional mapping with the NEAR X ray/gamma ray spectrometer 1997JGR...10223729T Gleason, J. D., et al. Petrography and bulk chemistry of Martian lherzolite LEW88516 1997GeCoA..61.4007G Gleason, J. D., et al. Petrography and bulk chemistry of Martian orthopyroxenite ALH84001: Implications for the origin of secondary carbonates 1997GeCoA..61.3503G Laros, J. G., et al. Gamma-Ray Burst Arrival Time Localizations: Simultaneous Observations by Mars Observer, Compton Gamma Ray Observatory, and ULYSSES 1997ApJS..110..157L Boynton, W. V., et al. The determination of ice composition with instruments on cometary landers 1997AcAau..40..663B Trombka, J. I., et al. Observation of 433 Eros with the X-Ray/Gamma-Ray Remote Sensing Spectrometer on the NEAR Mission 1995Metic..30R.589T Gleason, J. D., Kring, D. A., Boynton, W. V.Shergottite Mixing Relations, Partial Melting Models, and the Nd Evolution of the Martian Mantle 1995Metic..30Q.511G Ruzicka, A., Boynton, W. V. Quantitative Models of CAI Rim Layer Growth 1995Metic..30..570R Feldman, W. C., et al. Calibration of a space thermal/epithermal neutron detector: The Mars Observer Gamma-Ray Spectrometer anticoincidence shield 1995NIMPA.362..561F Ruzicka, A., Silica-rich orthopyroxenite in the Bovedy Chondrite 1995Metic..30...57R Boynton, W. V., Reinert, R. P. The cryo-penetrator: an approach to exploration of icy bodies in the solar system 1995AcAau..35...59B Boynton, W. V., Reinert, R. P. The cryo-penetrator: an approach to exploration of icy bodies in the solar system. 1995AcAau..35S..59B Kring, D. A., Hildebrand, A. R., Boynton, W. V. Provenance of mineral phases in the Cretaceous-Tertiary boundary sediments exposed on the southern peninsula of Haiti 1994E&PSL.128..629K Ruzicka, A., Boynton, W. V. Origin of CAI rims by vaporization and metasomatism 1994Metic..29..526R Ruzicka, A., Boynton, W. V., Ganguly, J. Olivine coronas, metamorphism, and the thermal history of the Morristown and Emery mesosiderites 1994GeCoA..58.2725R Feldman, W. C., et al. Redistribution of subsurface neutrons caused by ground ice on Mars 1993JGR....9820855F Ruzicka, A., Boynton, W. V. The Anatomy and Bulk Composition of CAI Rims in the Vigarano (CV3) Chondrite 1993Metic..28R.426R Ruzicka, A., et al. The Trace-Element Composition of a Silica-rich Clast in the Bovedy (L3/4) Chondrite 1993Metic..28Q.426R Kring, D. A., Boynton, W. V. K/t Melt Glasses 1993Natur.503..504K Kring, D. A., Boynton, W. V. Petrogenesis of an augite-bearing melt rock in the Chicxulub structure and its relationship to K/T impact spherules in Haiti 1992Natur.358..141K Ruzicka, A., Boynton, W. V. The Origin of Silica-Rich Chondrules and Clasts in Ordinary and Carbonaceous Chondrites 1992Metic..27Q.284R Ruzicka, A., Boynton, W. V. A Distinctive Silica-Rich, Sodium-Poor Igneous Clast in the Bovedy (L3) Chondrite 1992Metic..27Q.283R Boynton, W. V., et al. Science applications of the Mars Observer gamma ray spectrometer 1992JGR....97.7681B Ruzicka, A., Boynton, W. V. A survey of CAIs in Leoville and Vigarano: Rim layers, brecciation metamorphism, and alteration 1991Metic..26R.390R Kring, D. et al. Petrologic description of Eagles Nest: A new olivine achondrite 1991Metic..26R.360K Hill, D. H., Boynton, W. V., Haag, R. A. Calcalong Creek: A KREEPy lunar meteorite 1991Metic..26R.345H Ruzicka, A., Boynton, W. V. Zone sequences, widths and compositions of olivine coronas in mesosiderites 1991Metic..26Q.391R Hildebrand, A. R., Boynton, W. V. Proximal ejecta of the Chicxulub crater, Yucatán Peninsula Mexico 1991Metic..26Q.345H Spitz, A. H., Boynton, W. V. Trace element analysis of ureilites - New constraints on their petrogenesis 1991GeCoA..55.3417S Hildebrand, A. R., et al. Chicxulub Crater: A possible retaceous/Tertiary boundary impact crater on the Yucatán Peninsula, Mexico 1991Geo....19..867H Hill, D. H., Boynton, W. V., Haag, R. A. A lunar meteorite found outside the Antarctic 1991Natur.352..614H Kring, D. A., Boynton, W. V. Altered spherules of impact melt and associated relic glass from the K/T boundary sediments in Haiti 1991GeCoA..55.1737K Hildebrand, A. R., Kring, D. A., Boynton, W. V. A Cretaceous/Tertiary boundary ejecta layer, ˜50 cm thick, from Beloc, Haiti 1990Metic..25R.370H Ruzicka, A., Boynton, W. V. The formation of olivine coronas in mesosiderites 1990Metic..25Q.403R Kring, D. A., Boynton, W. V. Trace-element compositions of Ca-rich chondrules from Allende: Relationships between refractory inclusions and ferromagnesian chondrules 1990Metic..25Q.377K Kring, D. A., Boynton, W. V. Chemical memory in chondrules of precursor dust with fractionated compositions 1989Metic..24R.289K Hildebrand, A. R., Boynton, W. V. HG anomalies at the K/T boundary: Evidence for acid rain? 1989Metic..24R.277H Brearley, A. J., et al. Chemical, isotopic and mineralogical evidence for the origin of matrix in ordinary chondrites 1989GeCoA..53.2081B Spitz, A. H., Boynton, W. V. Trace Element Analysis of Ureilite Meteorites: Extending the Range of Characterized Samples 1988Metic..23T.302S Boynton, W. V. Nebular Processes Associated with CAI Rim Formation 1988Metic..23S.259B Hildebrand, A. R., Boynton, W. V. Impact Wave Deposits at the Cretaceous/Tertiary Boundary Imply an Oceanic Impact Site Near North America 1988Metic..23Q.274H Drake, M. J., Boynton, W. V. Partitioning of rare earth elements between hibonite and melt and implications for nebular condensation of the rare earth elements 1988Metic..23...75D Crowe, B. M., et al. Trace element geochemistry of volcanic gases and particles from 1983-1984 eruptive episodes of Kilauea volcano 1987JGR....9213708C Wark, D. A., et al. Trace element and petrologic clues to the formation of forsterite-bearing Ca-Al-rich inclusions in the Allende meteorite 1987GeCoA..51..607W Spitz, A. H., Boynton, W. V. The Light Rare Earth Element Host Phases in Ureilite Meteorites 1986Metic..21..515S Drake, M. J., Boynton, W. V. Partitioning of REE Between Hibonite and Melt and Implication for Nebular Condensation of the REE 1986Metic..21..356D Evans, L. G., Trombka, J. I., Boynton, W. V. Elemental analysis of a comet nucleus by passive gamma ray spectrometry from a Penetrator 1986JGR....91D.525E Evans, L. G., Trombka, J. I., Boynton, W. V. Elemental analysis of a comet nucleus by passive gamma ray spectrometry from a penetrator 1986JGR....91..525E Boynton, W. V., Wark, D. A. Refractory Rims: Evidence for High Temperature Events in the Post-Formation History of Ca,Al-Rich Inclusions 1985Metic..20..613B Officer, C., et al. Estimation of benthic respiration parameters from field data 1985ECSS...21..357O Frazier, R. M., Boynton, W. V. Rare earth and other elements in components of the Abee enstatite chondrite 1985Metic..20..197F Boynton, W. V., Wark, D. A. Trace Element Abundances in Rim Layers of an Allende Type A Coarse-Grained Ca,Al-Rich Inclusion 1984Metic..19R.195B Hildebrand, A. R., Boynton, W. V., Zoller, W. H. Kilauea Volcano Aerosols: Evidence in Siderophile Element Abundances for Impact-Induced Oceanic Volcanism at the K/T Boundary 1984Metic..19..239H Wilkening, L. L., Boynton, W. V., Hill, D. H. Trace elements in rims and interiors of Chainpur chondrules 1984GeCoA..48.1071W Goodrich, C. A., et al. Petrology and chemistry of hyperferroan anorthosites and other clastsfrom lunar meteorite ALHA81005 1984JGR....89...87G Boynton, W. V., et al. Trace Elements in Ca, Al-Rich Chondrules in the Dhajala (H3) Chondrite 1983Metic..18..270B Boynton, W. V., Hill, D. H. Composition of bulk samples and a possible pristine clast from Allan Hills A81005 1983GeoRL..10..837B Wilkening, L. L., Hill, D., Boynton, W. V. Trace Elements in Chondrule Rims 1982Metic..17..296W Boynton, W. V., Ahrens, T. J. Preface 1982JGRS...87....1B Frazier, R. M., Boynton, W. V. Trace Element Concentration in Abee Density Separates and Minerals 1981Metic..16R.315F Dearborn, D. S., Boynton, W. V. Oxygen Isotopes, Rare-Earth Elements, Supernovae and Wolf-Rayet Stars 1981Metic..16..306D Nozette, S., Boynton, W. V. Superheavy elements - an early solar system upper limit for elements 107 to 110 1981Sci...214..331N Frazier, R. M., Boynton, W. V. Rare-Earth Abundances in Separates from the Enstatite Chondrite Abee 1980Metic..15S.291F Boynton, W. V., Frazier, R. M., MacDougall, J. D. Trace Element Abundances in Ultra-Refractory Condensates from the Murchison Meteorite 1980Metic..15Q.269B Nozette, S., Boynton, W. V. An Upper Limit on the Abundance of Superheavy Element Z = 110 in the Early Solar System 1980Metic..15..345N Arnold, J. R., et al. Progress in the Abee Consortium 1979Metic..14R.337A Nozette, S., Boynton, W. V. A Study of Rare Earth Elemental Abundances in Iron Meteorites 1979Metic..14..501N Boynton, W. V. Supernova Material in Allende Inclusions 1979Metic..14..357B Kerridge, J. F., Mackay, A. L., Boynton, W. V. Magnetite in CI carbonaceous meteorites - Origin by aqueous activity on a planetesimal Surface 1979Sci...205..395K Boynton, W. V. Fractionation in the solar nebula. II - Condensation of Th, U, PU and CM 1978E&PSL..40...63B Kallemeyn, G. W., et al. Formation of the Bencubbin polymict meteoritic Breccia 1978GeCoA..42..507K Boynton, W. V. A Brief Review of the Chemistry of Ca, Al-Rich Inclusions in the Allende Meteorite 1977Metic..12..183B Boynton, W. V., Wasson, J. T. Distribution of 28 elements in size fractions of lunar mare and highlands soils 1977GeCoA..41.1073B Boynton, W. V., Wasson, J. T. Concentrations of trace elements in separated phases of Orgueil 1976Metic..11R.255B Boynton, W. V. Nebular mixing to form the Allende parent body 1976Metic..11..252B |
