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Bettina L. Beard - Publications

Affiliations: 
NASA Ames Research, Mountain View, CA, United States 
Area:
Vision
Website:
http://vision.arc.nasa.gov/personnel/tina/vita.html
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22/206 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2020 Fortney NW, Beard BL, Hutchings JA, Shields MR, Bianchi TS, Boyd ES, Johnson CM, Roden EE. Geochemical and Stable Fe Isotopic Analysis of Dissimilatory Microbial Iron Reduction in Chocolate Pots Hot Spring, Yellowstone National Park. Astrobiology. PMID 32580560 DOI: 10.1089/Ast.2019.2058  0.319
2014 Frierdich AJ, Beard BL, Reddy TR, Scherer MM, Johnson CM. Iron isotope fractionation between aqueous Fe(II) and goethite revisited: New insights based on a multi-direction approach to equilibrium and isotopic exchange rate modification Geochimica Et Cosmochimica Acta. 139: 383-398. DOI: 10.1016/J.Gca.2014.05.001  0.302
2013 Wu L, Brucker RP, Beard BL, Roden EE, Johnson CM. Iron isotope characteristics of Hot Springs at Chocolate Pots, Yellowstone National Park. Astrobiology. 13: 1091-101. PMID 24219169 DOI: 10.1089/Ast.2013.0996  0.301
2013 Li W, Czaja AD, Van Kranendonk MJ, Beard BL, Roden EE, Johnson CM. An anoxic, Fe(II)-rich, U-poor ocean 3.46 billion years ago Geochimica Et Cosmochimica Acta. 120: 65-79. DOI: 10.1016/J.Gca.2013.06.033  0.309
2013 Czaja AD, Johnson CM, Beard BL, Roden EE, Li W, Moorbath S. Biological Fe oxidation controlled deposition of banded iron formation in the ca. 3770Ma Isua Supracrustal Belt (West Greenland) Earth and Planetary Science Letters. 363: 192-203. DOI: 10.1016/J.Epsl.2012.12.025  0.313
2012 Czaja AD, Johnson CM, Yamaguchi KE, Beard BL. Comment on "Abiotic pyrite formation produces a large Fe isotope fractionation". Science (New York, N.Y.). 335: 538; author reply 53. PMID 22301304 DOI: 10.1126/Science.1211804  0.308
2011 Percak-Dennett EM, Beard BL, Xu H, Konishi H, Johnson CM, Roden EE. Iron isotope fractionation during microbial dissimilatory iron oxide reduction in simulated Archaean seawater. Geobiology. 9: 205-20. PMID 21504536 DOI: 10.1111/J.1472-4669.2011.00277.X  0.31
2010 Heimann A, Johnson CM, Beard BL, Valley JW, Roden EE, Spicuzza MJ, Beukes NJ. Fe, C, and O isotope compositions of banded iron formation carbonates demonstrate a major role for dissimilatory iron reduction in ~2.5Ga marine environments Earth and Planetary Science Letters. 294: 8-18. DOI: 10.1016/J.Epsl.2010.02.015  0.306
2010 Johnson CM, Bell K, Beard BL, Shultis AI. Iron isotope compositions of carbonatites record melt generation, crystallization, and late-stage volatile-transport processes Mineralogy and Petrology. 98: 91-110. DOI: 10.1007/S00710-009-0055-4  0.317
2008 Heimann A, Beard BL, Johnson CM. The role of volatile exsolution and sub-solidus fluid/rock interactions in producing high 56Fe/54Fe ratios in siliceous igneous rocks Geochimica Et Cosmochimica Acta. 72: 4379-4396. DOI: 10.1016/J.Gca.2008.06.009  0.304
2007 Beard BL, Johnson CM. Comment on "Iron isotope fractionation during planetary differentiation" by S. Weyer et al., Earth Planet. Sci. Lett. V240, pages 251-264 Earth and Planetary Science Letters. 256: 633-637. DOI: 10.1016/J.Epsl.2007.01.037  0.315
2006 Johnson CM, Beard BL. Fe isotopes: An emerging technique for understanding modern and ancient biogeochemical cycles Gsa Today. 16: 4-10. DOI: 10.1130/Gsat01611A.1  0.307
2006 Severmann S, Johnson CM, Beard BL, McManus J. The effect of early diagenesis on the Fe isotope compositions of porewaters and authigenic minerals in continental margin sediments Geochimica Et Cosmochimica Acta. 70: 2006-2022. DOI: 10.1016/J.Gca.2006.01.007  0.332
2006 Chu NC, Johnson CM, Beard BL, German CR, Nesbitt RW, Frank M, Bohn M, Kubik PW, Usui A, Graham I. Evidence for hydrothermal venting in Fe isotope compositions of the deep Pacific Ocean through time Earth and Planetary Science Letters. 245: 202-217. DOI: 10.1016/J.Epsl.2006.02.043  0.322
2005 Yamaguchi KE, Johnson CM, Beard BL, Ohmoto H. Biogeochemical cycling of iron in the Archean-Paleoproterozoic Earth: Constraints from iron isotope variations in sedimentary rocks from the Kaapvaal and Pilbara Cratons Chemical Geology. 218: 135-169. DOI: 10.1016/J.Chemgeo.2005.01.020  0.312
2004 Beard BL, Johnson CM. Inter-mineral Fe isotope variations in mantle-derived rocks and implications for the Fe geochemical cycle Geochimica Et Cosmochimica Acta. 68: 4727-4743. DOI: 10.1016/J.Gca.2004.04.023  0.332
2004 Severmann S, Johnson CM, Beard BL, German CR, Edmonds HN, Chiba H, Green DRH. The effect of plume processes on the Fe isotope composition of hydrothermally derived Fe in the deep ocean as inferred from the Rainbow vent site, Mid-Atlantic Ridge, 36°14′N Earth and Planetary Science Letters. 225: 63-76. DOI: 10.1016/J.Epsl.2004.06.001  0.312
2003 Beard BL, Johnson CM, Damm KLV, Poulson RL. Iron isotope constraints on Fe cycling and mass balance in oxygenated Earth oceans Geology. 31: 629-632. DOI: 10.1130/0091-7613(2003)031<0629:Iicofc>2.0.Co;2  0.321
2003 Beard BL, Johnson CM, Skulan JL, Nealson KH, Cox L, Sun H. Application of Fe isotopes to tracing the geochemical and biological cycling of Fe Chemical Geology. 195: 87-117. DOI: 10.1016/S0009-2541(02)00390-X  0.304
2003 Johnson CM, Beard BL, Beukes NJ, Klein C, O'Leary JM. Ancient geochemical cycling in the Earth as inferred from Fe isotope studies of banded iron formations from the Transvaal Craton Contributions to Mineralogy and Petrology. 144: 523-547. DOI: 10.1007/S00410-002-0418-X  0.329
1999 Beard BL, Johnson CM. High precision iron isotope measurements of terrestrial and lunar materials Geochimica Et Cosmochimica Acta. 63: 1653-1660. DOI: 10.1016/S0016-7037(99)00089-7  0.311
1988 Ball KK, Beard BL, Roenker DL, Miller RL, Griggs DS. Age and visual search: expanding the useful field of view. Journal of the Optical Society of America. a, Optics and Image Science. 5: 2210-9. PMID 3230491 DOI: 10.1364/Josaa.5.002210  0.318
Low-probability matches (unlikely to be authored by this person)
2019 Frierdich AJ, Nebel O, Beard BL, Johnson CM. Iron isotope exchange and fractionation between hematite (α-Fe2O3) and aqueous Fe(II): A combined three-isotope and reversal-approach to equilibrium study Geochimica Et Cosmochimica Acta. 245: 207-221. DOI: 10.1016/J.Gca.2018.10.033  0.3
2008 Johnson CM, Beard BL, Klein C, Beukes NJ, Roden EE. Iron isotopes constrain biologic and abiologic processes in banded iron formation genesis Geochimica Et Cosmochimica Acta. 72: 151-169. DOI: 10.1016/J.Gca.2007.10.013  0.298
2013 Li W, Huberty JM, Beard BL, Kita NT, Valley JW, Johnson CM. Contrasting behavior of oxygen and iron isotopes in banded iron formations revealed by in situ isotopic analysis Earth and Planetary Science Letters. 384: 132-143. DOI: 10.1016/J.Epsl.2013.10.014  0.298
2014 Frierdich AJ, Beard BL, Scherer MM, Johnson CM. Determination of the Fe(II)aq-magnetite equilibrium iron isotope fractionation factor using the three-isotope method and a multi-direction approach to equilibrium Earth and Planetary Science Letters. 391: 77-86. DOI: 10.1016/J.Epsl.2014.01.032  0.296
2004 Beard BL, Johnson CM. Fe isotope variations in the modern and ancient earth and other planetary bodies Reviews in Mineralogy and Geochemistry. 55: 319-357. DOI: 10.2138/Gsrmg.55.1.319  0.292
2012 Wu L, Percak-Dennett EM, Beard BL, Roden EE, Johnson CM. Stable iron isotope fractionation between aqueous Fe(II) and model Archean ocean Fe-Si coprecipitates and implications for iron isotope variations in the ancient rock record Geochimica Et Cosmochimica Acta. 84: 14-28. DOI: 10.1016/J.Gca.2012.01.007  0.292
2016 Reddy TR, Zheng XY, Roden EE, Beard BL, Johnson CM. Silicon isotope fractionation during microbial reduction of Fe(III)–Si gels under Archean seawater conditions and implications for iron formation genesis Geochimica Et Cosmochimica Acta. 190: 85-99. DOI: 10.1016/J.Gca.2016.06.035  0.291
2007 Yamaguchi KE, Johnson CM, Beard BL, Beukes NJ, Gutzmer J, Ohmoto H. Isotopic evidence for iron mobilization during Paleoproterozoic lateritization of the Hekpoort paleosol profile from Gaborone, Botswana Earth and Planetary Science Letters. 256: 577-587. DOI: 10.1016/J.Epsl.2007.02.010  0.291
2011 Wu L, Beard BL, Roden EE, Johnson CM. Stable iron isotope fractionation between aqueous Fe(II) and hydrous ferric oxide. Environmental Science & Technology. 45: 1847-52. PMID 21294566 DOI: 10.1021/Es103171X  0.289
2004 Wiesli RA, Beard BL, Johnson CM. Experimental determination of Fe isotope fractionation between aqueous Fe(II), siderite and “green rust” in abiotic systems Chemical Geology. 211: 343-362. DOI: 10.1016/J.Chemgeo.2004.07.002  0.288
2012 Wu L, Druschel G, Findlay A, Beard BL, Johnson CM. Experimental determination of iron isotope fractionations among Fe aq 2+-FeS aq-Mackinawite at low temperatures: Implications for the rock record Geochimica Et Cosmochimica Acta. 89: 46-61. DOI: 10.1016/J.Gca.2012.04.047  0.288
2010 Tangalos GE, Beard BL, Johnson CM, Alpers CN, Shelobolina ES, Xu H, Konishi H, Roden EE. Microbial production of isotopically light iron(II) in a modern chemically precipitated sediment and implications for isotopic variations in ancient rocks. Geobiology. 8: 197-208. PMID 20374296 DOI: 10.1111/J.1472-4669.2010.00237.X  0.288
2013 Percak-Dennett EM, Loizeau JL, Beard BL, Johnson CM, Roden EE. Iron isotope geochemistry of biogenic magnetite-bearing sediments from the bay of vidy, lake geneva Chemical Geology. 360: 32-40. DOI: 10.1016/J.Chemgeo.2013.10.008  0.287
2006 Beard BL, Johnson CM. Comment on "Heavy iron isotope composition of granites determined by high resolution MC-ICP-MS", by F. Poitrasson and R. Freydier [Chem. Geol. 222 132-147] Chemical Geology. 235: 201-204. DOI: 10.1016/J.Chemgeo.2006.05.013  0.287
2009 Wu L, Beard BL, Roden EE, Johnson CM. Influence of pH and dissolved Si on Fe isotope fractionation during dissimilatory microbial reduction of hematite Geochimica Et Cosmochimica Acta. 73: 5584-5599. DOI: 10.1016/J.Gca.2009.06.026  0.286
2004 Croal LR, Johnson CM, Beard BL, Newman DK. Iron isotope fractionation by Fe(II)-oxidizing photoautotrophic bacteria Geochimica Et Cosmochimica Acta. 68: 1227-1242. DOI: 10.1016/J.Gca.2003.09.011  0.285
2015 Li W, Beard BL, Johnson CM. Biologically recycled continental iron is a major component in banded iron formations. Proceedings of the National Academy of Sciences of the United States of America. PMID 26109570 DOI: 10.1073/Pnas.1505515112  0.282
2020 Chanda P, Zhou Z, Latta DE, Scherer MM, Beard BL, Johnson CM. Effect of organic C on stable Fe isotope fractionation and isotope exchange kinetics between aqueous Fe(II) and ferrihydrite at neutral pH Chemical Geology. 531: 119344. DOI: 10.1016/J.Chemgeo.2019.119344  0.281
1999 Beard BL, Johnson CM, Cox L, Sun H, Nealson KH, Aguilar C. Iron isotope biosignatures. Science (New York, N.Y.). 285: 1889-92. PMID 10489362 DOI: 10.1126/Science.285.5435.1889  0.281
2018 Czaja AD, Kranendonk MJV, Beard BL, Johnson CM. A multistage origin for Neoarchean layered hematite-magnetite iron formation from the Weld Range, Yilgarn Craton, Western Australia Chemical Geology. 488: 125-137. DOI: 10.1016/J.Chemgeo.2018.04.019  0.279
1995 Beard BL, Glazner AF. Trace element and Sr and Nd isotopic composition of mantle xenoliths from the Big Pine volcanic field, California Journal of Geophysical Research. 100: 4169-4179. DOI: 10.1029/94Jb02883  0.278
2005 Poulson RL, Johnson CM, Beard BL. Iron isotope exchange kinetics at the nanoparticulate ferrihydrite surface American Mineralogist. 90: 758-763. DOI: 10.2138/Am.2005.1802  0.276
2010 Kappler A, Johnson CM, Crosby HA, Beard BL, Newman DK. Evidence for equilibrium iron isotope fractionation by nitrate-reducing iron(II)-oxidizing bacteria. Geochimica Et Cosmochimica Acta. 74: 2826-2842. PMID 21076519 DOI: 10.1016/J.Gca.2010.02.017  0.275
2005 Johnson CM, Roden EE, Welch SA, Beard BL. Experimental constraints on Fe isotope fractionation during magnetite and Fe carbonate formation coupled to dissimilatory hydrous ferric oxide reduction Geochimica Et Cosmochimica Acta. 69: 963-993. DOI: 10.1016/J.Gca.2004.06.043  0.274
2015 Reddy TR, Frierdich AJ, Beard BL, Johnson CM. The effect of pH on stable iron isotope exchange and fractionation between aqueous Fe(II) and goethite Chemical Geology. 397: 118-127. DOI: 10.1016/J.Chemgeo.2015.01.018  0.273
2002 Johnson CM, Skulan JL, Beard BL, Sun H, Nealson KH, Braterman PS. Isotopic fractionation between Fe(III) and Fe(II) in aqueous solutions Earth and Planetary Science Letters. 195: 141-153. DOI: 10.1016/S0012-821X(01)00581-7  0.272
2002 Skulan JL, Beard BL, Johnson CM. Kinetic and equilibrium Fe isotope fractionation between aqueous Fe(III) and hematite Geochimica Et Cosmochimica Acta. 66: 2995-3015. DOI: 10.1016/S0016-7037(02)00902-X  0.271
2016 Fortney NW, He S, Converse BJ, Beard BL, Johnson CM, Boyd ES, Roden EE. Microbial Fe(III) oxide reduction potential in Chocolate Pots hot spring, Yellowstone National Park. Geobiology. PMID 26750514 DOI: 10.1111/Gbi.12173  0.27
2009 Handler RM, Beard BL, Johnson CM, Scherer MM. Atom exchange between aqueous Fe(II) and goethite: an Fe isotope tracer study. Environmental Science & Technology. 43: 1102-7. PMID 19320165 DOI: 10.1021/Es802402M  0.27
2021 Chanda P, Amenabar MJ, Boyd ES, Beard BL, Johnson CM. Stable Fe isotope fractionation during dissimilatory Fe(III) reduction by a thermoacidophile in acidic hydrothermal environments Geochimica Et Cosmochimica Acta. 292: 427-451. DOI: 10.1016/J.GCA.2020.09.025  0.268
2008 Hyslop EV, Valley JW, Johnson CM, Beard BL. The effects of metamorphism on O and Fe isotope compositions in the Biwabik Iron Formation, northern Minnesota Contributions to Mineralogy and Petrology. 155: 313-328. DOI: 10.1007/S00410-007-0244-2  0.268
2007 Crosby HA, Roden EE, Johnson CM, Beard BL. The mechanisms of iron isotope fractionation produced during dissimilatory Fe(III) reduction by Shewanella putrefaciens and Geobacter sulfurreducens Geobiology. 5: 169-189. DOI: 10.1111/J.1472-4669.2007.00103.X  0.268
2010 Beard BL, Handler RM, Scherer MM, Wu L, Czaja AD, Heimann A, Johnson CM. Iron isotope fractionation between aqueous ferrous iron and goethite Earth and Planetary Science Letters. 295: 241-250. DOI: 10.1016/J.Epsl.2010.04.006  0.267
2005 Crosby HA, Johnson CM, Roden EE, Beard BL. Coupled Fe(II)-Fe(III) electron and atom exchange as a mechanism for Fe isotope fractionation during dissimilatory iron oxide reduction. Environmental Science & Technology. 39: 6698-704. PMID 16190229 DOI: 10.1021/Es0505346  0.267
2015 Neumann A, Wu L, Li W, Beard BL, Johnson CM, Rosso KM, Frierdich AJ, Scherer MM. Atom exchange between aqueous Fe(II) and structural Fe in clay minerals. Environmental Science & Technology. 49: 2786-95. PMID 25671351 DOI: 10.1021/Es504984Q  0.267
2005 Beard BL, Johnson CM. Erratum to Brian L. Beard and Clark M. Johnson (2004) “Inter-mineral Fe isotope variations in mantle-derived rocks and implications for the Fe geochemical cycle”, Geochimica et Cosmochimica Acta 68, 4727–4743 Geochimica Et Cosmochimica Acta. 69: 5161-5161. DOI: 10.1016/J.Gca.2005.02.018  0.265
2012 Czaja AD, Johnson CM, Roden EE, Beard BL, Voegelin AR, Nägler TF, Beukes NJ, Wille M. Evidence for free oxygen in the Neoarchean ocean based on coupled iron-molybdenum isotope fractionation Geochimica Et Cosmochimica Acta. 86: 118-137. DOI: 10.1016/J.Gca.2012.03.007  0.264
2008 Johnson CM, Beard BL, Roden EE. The iron isotope fingerprints of redox and biogeochemical cycling in modern and ancient earth Annual Review of Earth and Planetary Sciences. 36: 457-493. DOI: 10.1146/Annurev.Earth.36.031207.124139  0.263
2016 Shi B, Liu K, Wu L, Li W, Smeaton CM, Beard BL, Johnson CM, Roden EE, Van Cappellen P. Iron isotope fractionations reveal a finite bioavailable Fe pool for structural Fe(III) reduction in nontronite. Environmental Science & Technology. PMID 27291525 DOI: 10.1021/Acs.Est.6B02019  0.263
2018 Zheng XY, Beard BL, Johnson CM. Assessment of matrix effects associated with Fe isotope analysis using 266 nm femtosecond and 193 nm nanosecond laser ablation multi-collector inductively coupled plasma mass spectrometry Journal of Analytical Atomic Spectrometry. 33: 68-83. DOI: 10.1039/C7Ja00272F  0.262
2010 Wu L, Beard BL, Roden EE, Kennedy CB, Johnson CM. Stable Fe isotope fractionations produced by aqueous Fe(II)-hematite surface interactions Geochimica Et Cosmochimica Acta. 74: 4249-4265. DOI: 10.1016/J.Gca.2010.04.060  0.26
2009 Jicha BR, Hart GL, Johnson CM, Hildreth W, Beard BL, Shirey SB, Valley JW. Isotopic and trace element constraints on the petrogenesis of lavas from the Mount Adams volcanic field, Washington Contributions to Mineralogy and Petrology. 157: 189-207. DOI: 10.1007/S00410-008-0329-6  0.26
2003 Welch SA, Beard BL, Johnson CM, Braterman PS. Kinetic and equilibrium Fe isotope fractionation between aqueous Fe(II) and Fe(III) Geochimica Et Cosmochimica Acta. 67: 4231-4250. DOI: 10.1016/S0016-7037(03)00266-7  0.258
2015 Frierdich AJ, Beard BL, Rosso KM, Scherer MM, Spicuzza MJ, Valley JW, Johnson CM. Low temperature, non-stoichiometric oxygen-isotope exchange coupled to Fe(II)-goethite interactions Geochimica Et Cosmochimica Acta. 160: 38-54. DOI: 10.1016/J.Gca.2015.03.029  0.257
2013 Johnson CM, Ludois JM, Beard BL, Beukes NJ, Heimann A. Iron formation carbonates: Paleoceanographic proxy or recorder of microbial diagenesis? Geology. 41: 1147-1150. DOI: 10.1130/G34698.1  0.254
2006 Chan MA, Johnson CM, Beard BL, Bowman JR, Parry WT. Iron isotopes constrain the pathways and formation mechanisms of terrestrial oxide concretions: A tool for tracing iron cycling on Mars? Geosphere. 2: 324-332. DOI: 10.1130/Ges00051.1  0.252
2012 Gorski CA, Handler RM, Beard BL, Pasakarnis T, Johnson CM, Scherer MM. Fe atom exchange between aqueous Fe2+ and magnetite. Environmental Science & Technology. 46: 12399-407. PMID 22577839 DOI: 10.1021/Es204649A  0.251
2014 Handler RM, Frierdich AJ, Johnson CM, Rosso KM, Beard BL, Wang C, Latta DE, Neumann A, Pasakarnis T, Premaratne WA, Scherer MM. Fe(II)-catalyzed recrystallization of goethite revisited. Environmental Science & Technology. 48: 11302-11. PMID 25248028 DOI: 10.1021/Es503084U  0.251
2004 Johnson CM, Beard BL, Roden EE, Newman DK, Nealson KH. Isotopic constraints on biogeochemical cycling of Fe Reviews in Mineralogy and Geochemistry. 55: 359-408. DOI: 10.2138/Gsrmg.55.1.359  0.251
2009 Hora JM, Singer BS, Wörner G, Beard BL, Jicha BR, Johnson CM. Shallow and deep crustal control on differentiation of calc-alkaline and tholeiitic magma Earth and Planetary Science Letters. 285: 75-86. DOI: 10.1016/J.Epsl.2009.05.042  0.247
2010 Czaja AD, Johnson CM, Beard BL, Eigenbrode JL, Freeman KH, Yamaguchi KE. Iron and carbon isotope evidence for ecosystem and environmental diversity in the ∼ 2.7 to 2.5 Ga Hamersley Province, Western Australia Earth and Planetary Science Letters. 292: 170-180. DOI: 10.1016/J.Epsl.2010.01.032  0.247
1997 Beard BL, Johnson CM. Hafnium isotope evidence for the origin of Cenozoic basaltic lavas from the southwestern United States Journal of Geophysical Research. 102: 20149-20178. DOI: 10.1029/97Jb01731  0.242
1998 Beard BL, Glazner AF. Petrogenesis of isotopically unusual Pliocene olivine leucitites from Deep Springs Valley, California Contributions to Mineralogy and Petrology. 133: 402-417. DOI: 10.1007/S004100050462  0.242
1999 Johnson CM, Beard BL. Correction of instrumentally produced mass fractionation during isotopic analysis of fe by thermal ionization mass spectrometry International Journal of Mass Spectrometry. 193: 87-99. DOI: 10.1016/S1387-3806(99)00158-X  0.24
2013 d'Abzac FX, Beard BL, Czaja AD, Konishi H, Schauer JJ, Johnson CM. Iron isotope composition of particles produced by UV-femtosecond laser ablation of natural oxides, sulfides, and carbonates. Analytical Chemistry. 85: 11885-92. PMID 24261311 DOI: 10.1021/Ac402722T  0.236
2015 Neumann A, Wu L, Li W, Beard BL, Johnson CM, Rosso KM, Frierdich AJ, Scherer MM. Correction to Atom Exchange between Aqueous Fe(II) and Structural Fe in Clay Minerals. Environmental Science & Technology. 49: 6362. PMID 25941880 DOI: 10.1021/Acs.Est.5B01659  0.235
2009 Brandon AD, Lapen TJ, Debaille V, Beard BL, Rankenburg K, Neal C. Re-evaluating 142Nd/144Nd in lunar mare basalts with implications for the early evolution and bulk Sm/Nd of the Moon Geochimica Et Cosmochimica Acta. 73: 6421-6445. DOI: 10.1016/J.Gca.2009.07.015  0.235
2005 Mahlen NJ, Johnson CM, Baumgartner LP, Beard BL. Provenance of Jurassic Tethyan sediments in the HP/UHP Zermatt-Saas ophiolite, western Alps Bulletin of the Geological Society of America. 117: 530-544. DOI: 10.1130/B25545.1  0.234
2014 Doebbert AC, Johnson CM, Carroll AR, Beard BL, Pietras JT, Rhodes Carson M, Norsted B, Throckmorton LA. Controls on Sr isotopic evolution in lacustrine systems: Eocene green river formation, Wyoming Chemical Geology. 380: 172-189. DOI: 10.1016/J.Chemgeo.2014.04.008  0.232
2006 Johnson CM, Beard BL. Tracing metasomatic and crystallization processes in the mantle through Fe isotopes Geochimica Et Cosmochimica Acta. 70. DOI: 10.1016/J.Gca.2006.06.599  0.232
2004 Johnson CM, Beard BL, Albarède F. Overview and general concepts Reviews in Mineralogy & Geochemistry. 55: 1-24. DOI: 10.2138/Gsrmg.55.1.1  0.232
2011 Kita NT, Huberty JM, Kozdon R, Beard BL, Valley JW. High-precision SIMS oxygen, sulfur and iron stable isotope analyses of geological materials: Accuracy, surface topography and crystal orientation Surface and Interface Analysis. 43: 427-431. DOI: 10.1002/Sia.3424  0.229
2015 Satkoski AM, Beukes NJ, Li W, Beard BL, Johnson CM. A redox-stratified ocean 3.2 billion years ago Earth and Planetary Science Letters. 430: 43-53. DOI: 10.1016/J.Epsl.2015.08.007  0.228
2007 Wiesli RA, Beard BL, Braterman PS, Johnson CM, Saha SK, Sinha MP. Iron isotope fractionation between liquid and vapor phases of iron pentacarbonyl. Talanta. 71: 90-6. PMID 19071272 DOI: 10.1016/J.Talanta.2006.03.026  0.226
2017 Satkoski AM, Fralick P, Beard BL, Johnson CM. Initiation of modern-style plate tectonics recorded in Mesoarchean marine chemical sediments Geochimica Et Cosmochimica Acta. 209: 216-232. DOI: 10.1016/J.Gca.2017.04.024  0.225
2007 Jicha BR, Singer BS, Beard BL, Johnson CM, Moreno-Roa H, Naranjo JA. Rapid magma ascent and generation of 230Th excesses in the lower crust at Puyehue-Cordón Caulle, Southern Volcanic Zone, Chile Earth and Planetary Science Letters. 255: 229-242. DOI: 10.1016/J.Epsl.2006.12.017  0.225
2017 Ankney ME, Bacon CR, Valley JW, Beard BL, Johnson CM. Oxygen and U-Th isotopes and the timescales of hydrothermal exchange and melting in granitoid wall rocks at Mount Mazama, Crater Lake, Oregon Geochimica Et Cosmochimica Acta. 213: 137-154. DOI: 10.1016/J.Gca.2017.04.043  0.224
1993 Johnson CM, Beard BL. Evidence from hafnium isotopes for ancient sub-oceanic mantle beneath the Rio Grande rift Nature. 362: 441-444. DOI: 10.1038/362441A0  0.224
2011 Singer BS, Smith KE, Jicha BR, Beard BL, Johnson CM, Rogers NW. Tracking open-system differentiation during growth of Santa María Volcano, Guatemala Journal of Petrology. 52: 2335-2363. DOI: 10.1093/Petrology/Egr047  0.223
2004 Jicha BR, Singer BS, Brophy JG, Fournelle JH, Johnson CM, Beard BL, Lapen TJ, Mahlen NJ. Variable impact of the subducted slab on Aleutian island arc magma sources: Evidence from Sr, Nd, Pb, and Hf isotopes and trace element abundances Journal of Petrology. 45: 1845-1875. DOI: 10.1093/Petrology/Egh036  0.22
1992 Beard BL, Medaris LG, Johnson CM, Brueckner HK, Mísař Z. Petrogenesis of Variscan high-temperature Group A eclogites from the Moldanubian Zone of the Bohemian Massif, Czechoslovakia Contributions to Mineralogy and Petrology. 111: 468-483. DOI: 10.1007/Bf00320902  0.219
2007 King EM, Beard BL, Valley JW. Strontium and oxygen isotopic evidence for strike/slip movement of accreted terranes in the Idaho Batholith Lithos. 96: 387-401. DOI: 10.1016/J.Lithos.2006.11.001  0.219
1995 Beard BL, Medaris LG, Johnson CM, Jelínek E, Tonika J, Riciputi LR. Geochronology and geochemistry of eclogites from the Mariánské Lázně Complex, Czech Republic: Implications for Variscan orogenesis International Journal of Earth Sciences. 84: 552-567. DOI: 10.1007/Bf00284520  0.218
1998 Beard BL, Taylor LA, Scherer EE, Johnson CM, Snyder GA. The Source Region and Melting Mineralogy of High-Titanium and Low-Titanium Lunar Basalts Deduced from Lu-Hf Isotope Data Geochimica Et Cosmochimica Acta. 62: 525-544. DOI: 10.1016/S0016-7037(97)00373-6  0.217
2010 Jicha BR, Smith KE, Singer BS, Beard BL, Johnson CM, Rogers NW. Crustal assimilation no match for slab fluids beneath Volcán de Santa María, Guatemala Geology. 38: 859-862. DOI: 10.1130/G31062.1  0.216
2013 Ankney ME, Johnson CM, Bacon CR, Beard BL, Jicha BR. Distinguishing lower and upper crustal processes in magmas erupted during the buildup to the 7.7 ka climactic eruption of Mount Mazama, Crater Lake, Oregon, using 238U-230Th disequilibria Contributions to Mineralogy and Petrology. 166: 563-585. DOI: 10.1007/S00410-013-0891-4  0.216
2005 Lapen TJ, Medaris LG, Johnson CM, Beard BL. Archean to Middle Proterozoic evolution of Baltica subcontinental lithosphere: Evidence from combined Sm-Nd and Lu-Hf isotope analyses of the Sandvik ultramafic body, Norway Contributions to Mineralogy and Petrology. 150: 131-145. DOI: 10.1007/S00410-005-0021-Z  0.216
1993 Beard BL, Johnson CM. Hf isotope composition of late Cenozoic basaltic rocks from northwestern Colorado, USA: New constraints on mantle enrichment processes Earth and Planetary Science Letters. 119: 495-509. DOI: 10.1016/0012-821X(93)90058-H  0.214
2002 Rhodes MK, Carroll AR, Pietras JT, Beard BL, Johnson CM. Strontium isotope record of paleohydrology and continental weathering, Eocene Green River Formation, Wyoming Geology. 30: 167-170. DOI: 10.1130/0091-7613(2002)030<0167:Siropa>2.0.Co;2  0.214
2016 Zheng XY, Beard BL, Reddy TR, Roden EE, Johnson CM. Abiologic silicon isotope fractionation between aqueous Si and Fe(III)-Si gel in simulated Archean seawater: Implications for Si isotope records in Precambrian sedimentary rocks Geochimica Et Cosmochimica Acta. 187: 102-122. DOI: 10.1016/J.Gca.2016.05.012  0.212
2005 Jicha BR, Singer BS, Beard BL, Johnson CM. Contrasting timescales of crystallization and magma storage beneath the Aleutian Island arc Earth and Planetary Science Letters. 236: 195-210. DOI: 10.1016/J.Epsl.2005.05.002  0.212
2003 Wiesli RA, Beard BL, Taylor LA, Johnson CM. Space weathering processes on airless bodies: Fe isotope fractionation in the lunar regolith Earth and Planetary Science Letters. 216: 457-465. DOI: 10.1016/S0012-821X(03)00552-1  0.21
2003 Johnson CM, Beard BL, Braterman PS, Welch SA. Reply to Comment on ‘Isotopic fractionation between Fe(III) and Fe(II) in aqueous solutions’ by Thomas D. Bullen, Arthur F. White and Cyril W. Childs Earth and Planetary Science Letters. 206: 233-236. DOI: 10.1016/S0012-821X(02)01092-0  0.21
2010 Lapen TJ, Righter M, Brandon AD, Debaille V, Beard BL, Shafer JT, Peslier AH. A younger age for ALH84001 and its geochemical link to shergottite sources in Mars. Science (New York, N.Y.). 328: 347-51. PMID 20395507 DOI: 10.1126/Science.1185395  0.209
2017 Baddouh M, Carroll AR, Meyers SR, Beard BL, Johnson CM. Chronostratigraphic Correlation of Lacustrine Deposits Using 87 SR/ 86 SR Ratios, Eocene Green River Formation, Wyoming, U.S.A. Journal of Sedimentary Research. 87: 406-423. DOI: 10.2110/Jsr.2017.27  0.209
2017 Zheng X, Beard BL, Lee S, Reddy TR, Xu H, Johnson CM. Contrasting particle size distributions and Fe isotope fractionations during nanosecond and femtosecond laser ablation of Fe minerals: Implications for LA-MC-ICP-MS analysis of stable isotopes Chemical Geology. 450: 235-247. DOI: 10.1016/J.Chemgeo.2016.12.038  0.205
2000 Olsen SN, Johnson CM, Beard BL, Baumgartner LP. New U-Pb zircon data and constraints on the age and mode of migmatization in the Aar massif, Central Alps European Journal of Mineralogy. 12: 1245-1260. DOI: 10.1127/0935-1221/2000/0012-1245  0.205
2015 Skora S, Mahlen NJ, Johnson CM, Baumgartner LP, Lapen TJ, Beard BL, Szilvagyi ET. Evidence for protracted prograde metamorphism followed by rapid exhumation of the Zermatt-Saas Fee ophiolite Journal of Metamorphic Geology. 33: 711-734. DOI: 10.1111/Jmg.12148  0.204
2010 Shafer JT, Brandon AD, Lapen TJ, Righter M, Peslier AH, Beard BL. Trace element systematics and 147Sm-143Nd and 176Lu-176Hf ages of Larkman Nunatak 06319: Closed-system fractional crystallization of an enriched shergottite magma Geochimica Et Cosmochimica Acta. 74: 7307-7328. DOI: 10.1016/J.Gca.2010.09.009  0.204
2013 Beard BL, Ludois JM, Lapen TJ, Johnson CM. Pre-4.0 billion year weathering on Mars constrained by Rb-Sr geochronology on meteorite ALH84001 Earth and Planetary Science Letters. 361: 173-182. DOI: 10.1016/J.Epsl.2012.10.021  0.203
1997 Scherer EE, Cameron KL, Johnson CM, Beard BL, Barovich KM, Collerson KD. LuHf geochronology applied to dating Cenozoic events affecting lower crustal xenoliths from Kilbourne Hole, New Mexico Chemical Geology. 142: 63-78. DOI: 10.1016/S0009-2541(97)00076-4  0.203
2016 Satkoski AM, Lowe DR, Beard BL, Coleman ML, Johnson CM. A high continental weathering flux into Paleoarchean seawater revealed by strontium isotope analysis of 3.26 Ga barite Earth and Planetary Science Letters. 454: 28-35. DOI: 10.1016/J.Epsl.2016.08.032  0.202
1995 Medaris LG, Beard BL, Johnson CM, Valley JW, Spicuzza MJ, Jelínek E, Mísâr Z. Garnet pyroxenite and eclogite in the Bohemian Massif: geochemical evidence for Variscan recycling of subducted lithosphere International Journal of Earth Sciences. 84: 489-505. DOI: 10.1007/Bf00284516  0.201
2011 Chetel LM, Janecke SU, Carroll AR, Beard BL, Johnson CM, Singer BS. Paleogeographic reconstruction of the Eocene Idaho River, North American Cordillera Bulletin of the Geological Society of America. 123: 71-88. DOI: 10.1130/B30213.1  0.199
1994 Qi Q, Jin Y, Beard BL, Taylor LA. Petrology and geochemistry of al-augite and cr-diopside group mantle xenoliths from Tahiti, society islands International Geology Review. 36: 152-178. DOI: 10.1080/00206819409465453  0.199
1997 Snyder GA, Taylor LA, Crozaz G, Halliday AN, Beard BL, Sobolev VN, Sobolev NV. The Origins of Yakutian Eclogite Xenoliths Journal of Petrology. 38: 85-113. DOI: 10.1093/Petroj/38.1.85  0.197
2000 Beard BL, Johnson CM. Strontium isotope composition of skeletal material can determine the birth place and geographic mobility of humans and animals. Journal of Forensic Sciences. 45: 1049-1061. DOI: 10.1520/Jfs14829J  0.194
2000 Beard BL, Johnson CM. Strontium isotope composition of skeletal material can determine the birth place and geographic mobility of humans and animals. Journal of Forensic Sciences. 45: 1049-61. PMID 11005180  0.193
2014 De Meyer CMC, Baumgartner LP, Beard BL, Johnson CM. Rb-Sr ages from phengite inclusions in garnets from high pressure rocks of the swiss western alps Earth and Planetary Science Letters. 395: 205-216. DOI: 10.1016/J.Epsl.2014.03.050  0.193
2005 Johnson CM, Beard BL. Geochemistry. Biogeochemical cycling of iron isotopes. Science (New York, N.Y.). 309: 1025-7. PMID 16099969 DOI: 10.1126/Science.1112552  0.191
2009 Lapen TJ, Medaris LG, Beard BL, Johnson CM. The Sandvik peridotite, Gurskøy, Norway: Three billion years of mantle evolution in the Baltica lithosphere Lithos. 109: 145-154. DOI: 10.1016/J.Lithos.2008.08.007  0.19
2008 Mahlen NJ, Beard BL, Johnson CM, Lapen TJ. An investigation of dissolution methods for Lu-Hf and: Sm-Nd isotope studies in zircon-and garnet-bearing whole-rock samples Geochemistry, Geophysics, Geosystems. 9. DOI: 10.1029/2007Gc001605  0.187
2014 D'Abzac FX, Czaja AD, Beard BL, Schauer JJ, Johnson CM. Iron Distribution in Size-Resolved Aerosols Generated by UV-Femtosecond Laser Ablation: Influence of Cell Geometry and Implications for In Situ Isotopic Determination by LA-MC-ICP-MS Geostandards and Geoanalytical Research. DOI: 10.1111/J.1751-908X.2014.00281.X  0.183
2017 Lapen TJ, Righter M, Andreasen R, Irving AJ, Satkoski AM, Beard BL, Nishiizumi K, Jull AJ, Caffee MW. Two billion years of magmatism recorded from a single Mars meteorite ejection site. Science Advances. 3: e1600922. PMID 28164153 DOI: 10.1126/Sciadv.1600922  0.183
1997 Grupe G, Price TD, Schröter P, Söllner F, Johnson CM, Beard BL. Mobility of Bell Beaker people revealed by strontium isotope ratios of tooth and bone: a study of southern Bavarian skeletal remains Applied Geochemistry. 12: 517-525. DOI: 10.1016/S0883-2927(97)00030-9  0.181
2012 Li W, Johnson CM, Beard BL. U-Th-Pb isotope data indicate phanerozoic age for oxidation of the 3.4Ga Apex Basalt Earth and Planetary Science Letters. 319: 197-206. DOI: 10.1016/J.Epsl.2011.12.035  0.179
2003 Lapen TJ, Johnson CM, Baumgartner LP, Mahlen NJ, Beard BL, Amato JM. Burial rates during prograde metamorphism of an ultra-high-pressure terrane: An example from Lago di Cignana, western Alps, Italy Earth and Planetary Science Letters. 215: 57-72. DOI: 10.1016/S0012-821X(03)00455-2  0.179
2008 Carroll AR, Doebbert AC, Booth AL, Chamberlain CP, Rhodes-Carson MK, Smith ME, Johnson CM, Beard BL. Capture of high-altitude precipitation by a low-altitude Eocene lake, western U.S Geology. 36: 791-794. DOI: 10.1130/G24783A.1  0.169
2011 Colville EJ, Carlson AE, Beard BL, Hatfield RG, Stoner JS, Reyes AV, Ullman DJ. Sr-Nd-Pb isotope evidence for ice-sheet presence on southern Greenland during the Last Interglacial. Science (New York, N.Y.). 333: 620-3. PMID 21798947 DOI: 10.1126/Science.1204673  0.168
2004 Lapen TJ, Mahlen NJ, Johnson CM, Beard BL. High precision Lu and Hf isotope analyses of both spiked and unspiked samples: A new approach Geochemistry, Geophysics, Geosystems. 5. DOI: 10.1029/2003Gc000582  0.168
2010 Hora JM, Singer BS, Jicha BR, Beard BL, Johnson CM, de Silva S, Salisbury M. Volcanic biotite-sanidine 40Ar/39Ar age discordances reflect Ar partitioning and pre-eruption closure in biotite Geology. 38: 923-926. DOI: 10.1130/G31064.1  0.167
2007 Lapen TJ, Johnson CM, Baumgartner LP, Piaz GVD, Skora S, Beard BL. Coupling of oceanic and continental crust during Eocene eclogite-facies metamorphism: Evidence from the Monte Rosa nappe, western Alps Contributions to Mineralogy and Petrology. 153: 139-157. DOI: 10.1007/S00410-006-0144-X  0.166
2017 Andersen NL, Singer BS, Jicha BR, Beard BL, Johnson CM, Licciardi JM. Pleistocene to Holocene Growth of a Large Upper Crustal Rhyolitic Magma Reservoir beneath the Active Laguna del Maule Volcanic Field, Central Chile Journal of Petrology. 58: 85-114. DOI: 10.1093/Petrology/Egx006  0.165
2009 Singer BS, Guillou H, Jicha BR, Laj C, Kissel C, Beard BL, Johnson CM. 40Ar/39Ar, K-Ar and 230Th-238U dating of the Laschamp excursion: A radioisotopic tie-point for ice core and climate chronologies Earth and Planetary Science Letters. 286: 80-88. DOI: 10.1016/J.Epsl.2009.06.030  0.165
2020 Fukuda K, Beard BL, Dunlap DR, Spicuzza MJ, Fournelle JH, Wadhwa M, Kita NT. Magnesium isotope analysis of olivine and pyroxene by SIMS: Evaluation of matrix effects Chemical Geology. 540: 119482. DOI: 10.1016/J.Chemgeo.2020.119482  0.164
2007 Kylander-Clark ARC, Hacker BR, Johnson CM, Beard BL, Mahlen NJ, Lapen TJ. Coupled Lu-Hf and Sm-Nd geochronology constrains prograde and exhumation histories of high- and ultrahigh-pressure eclogites from western Norway Chemical Geology. 242: 137-154. DOI: 10.1016/J.Chemgeo.2007.03.006  0.163
2009 Jicha BR, Johnson CM, Hildreth W, Beard BL, Hart GL, Shirey SB, Singer BS. Discriminating assimilants and decoupling deep- vs. shallow-level crystal records at Mount Adams using 238U-230Th disequilibria and Os isotopes Earth and Planetary Science Letters. 277: 38-49. DOI: 10.1016/J.Epsl.2008.09.035  0.161
2015 Wende AM, Johnson CM, Beard BL. Tracing changes in mantle and crustal influences in individual cone-building stages at Mt. Shasta using U-Th and Sr isotopes Earth and Planetary Science Letters. 428: 11-21. DOI: 10.1016/J.Epsl.2015.07.005  0.161
2009 Kylander-Clark ARC, Hacker BR, Johnson CM, Beard BL, Mahlen NJ. Slow subduction of a thick ultrahigh-pressure terrane Tectonics. 28. DOI: 10.1029/2007Tc002251  0.16
2011 Jicha BR, Kristjánsson L, Brown MC, Singer BS, Beard BL, Johnson CM. New age for the Skálamælifell excursion and identification of a global geomagnetic event in the late Brunhes chron Earth and Planetary Science Letters. 310: 509-517. DOI: 10.1016/J.Epsl.2011.08.007  0.16
2019 Munroe JS, Norris ED, Carling GT, Beard BL, Satkoski AM, Liu L. Isotope fingerprinting reveals western North American sources of modern dust in the Uinta Mountains, Utah, USA Aeolian Research. 38: 39-47. DOI: 10.1016/J.Aeolia.2019.03.005  0.156
1998 Beard BL, Taylor LA, Scherer EE, Johnson CM, Snyder GA. The source region and melting mineralogy of high-titanium and low-titanium lunar basalts deduced from Lu-Hf isotope data Geochimica Et Cosmochimica Acta. 62: 525-544.  0.154
2006 Medaris LG, Beard BL, Jelínek E. Mantle-derived, UHP garnet pyroxenite and eclogite in the Moldanubian Gföhl nappe, Bohemian Massif: A geochemical review, new P-T determinations, and tectonic interpretation International Geology Review. 48: 765-777. DOI: 10.2747/0020-6814.48.9.765  0.15
2011 Li W, Beard BL, Johnson CM. Exchange and fractionation of Mg isotopes between epsomite and saturated MgSO 4 solution Geochimica Et Cosmochimica Acta. 75: 1814-1828. DOI: 10.1016/J.Gca.2011.01.023  0.15
1994 Yager D, Beard BL. Age differences in spatial contrast sensitivity are not the result of changes in subjects' criteria or psychophysical performance. Optometry and Vision Science : Official Publication of the American Academy of Optometry. 71: 778-82. PMID 7898885 DOI: 10.1097/00006324-199412000-00008  0.15
2016 Hatfield RG, Reyes AV, Stoner JS, Carlson AE, Beard BL, Winsor K, Welke B. Interglacial responses of the southern Greenland ice sheet over the last 430,000 years determined using particle-size specific magnetic and isotopic tracers Earth and Planetary Science Letters. 454: 225-236. DOI: 10.1016/J.Epsl.2016.09.014  0.148
2004 Albarède F, Beard B. Analytical Methods for Non-Traditional Isotopes Reviews in Mineralogy & Geochemistry. 55: 113-152. DOI: 10.2138/Gsrmg.55.1.113  0.147
2012 Li W, Chakraborty S, Beard BL, Romanek CS, Johnson CM. Magnesium isotope fractionation during precipitation of inorganic calcite under laboratory conditions Earth and Planetary Science Letters. 333: 304-316. DOI: 10.1016/J.Epsl.2012.04.010  0.145
1995 Barovich KM, Beard BL, Cappel JB, Johnson CM, Kyser TK, Morgan BE. A chemical method for hafnium separation from high-Ti whole-rock and zircon samples Chemical Geology. 121: 303-308. DOI: 10.1016/0009-2541(94)00131-Q  0.141
1999 Amato JM, Johnson CM, Baumgartner LP, Beard BL. Rapid exhumation of the Zermatt-Saas ophiolite deduced from high-precision SmNd and RbSr geochronology Earth and Planetary Science Letters. 171: 425-438. DOI: 10.1016/S0012-821X(99)00161-2  0.139
2015 Li W, Beard BL, Li C, Xu H, Johnson CM. Experimental calibration of Mg isotope fractionation between dolomite and aqueous solution and its geological implications Geochimica Et Cosmochimica Acta. 157: 164-181. DOI: 10.1016/J.Gca.2015.02.024  0.135
1997 Beard BL, Levi DM, Klein SA. Vernier acuity with non-simultaneous targets: the cortical magnification factor estimated by psychophysics. Vision Research. 37: 325-46. PMID 9135866 DOI: 10.1016/S0042-6989(96)00109-5  0.135
2016 Baddouh M, Meyers SR, Carroll AR, Beard BL, Johnson CM. Lacustrine 87Sr/86Sr as a tracer to reconstruct Milankovitch forcing of the Eocene hydrologic cycle Earth and Planetary Science Letters. 448: 62-68. DOI: 10.1016/J.Epsl.2016.05.007  0.135
2014 Reyes AV, Carlson AE, Beard BL, Hatfield RG, Stoner JS, Winsor K, Welke B, Ullman DJ. South Greenland ice-sheet collapse during Marine Isotope Stage 11. Nature. 510: 525-8. PMID 24965655 DOI: 10.1038/Nature13456  0.134
2021 Baddouh M, Carroll AR, Jagniecki EA, Beard BL, Lowenstein TK, Johnson CM. Groundwater mixing in an alkaline paleolake: Eocene Green River Formation, Wyoming Palaeogeography, Palaeoclimatology, Palaeoecology. 561: 110038. DOI: 10.1016/J.PALAEO.2020.110038  0.133
2019 Li S, Li W, Beard BL, Raymo ME, Wang X, Chen Y, Chen J. K isotopes as a tracer for continental weathering and geological K cycling. Proceedings of the National Academy of Sciences of the United States of America. PMID 30988182 DOI: 10.1073/Pnas.1811282116  0.132
2006 Lapen TJ, Mahlen NJ, Johnson CM, Beard BL. Correction to “High precision Lu and Hf isotope analyses of both spiked and unspiked samples: A new approach” Geochemistry, Geophysics, Geosystems. 7: n/a-n/a. DOI: 10.1029/2006Gc001395  0.131
2021 Jagniecki EA, Lowenstein TK, Demicco RV, Baddouh M, Carroll AR, Beard BL, Johnson CM. Spring origin of Eocene carbonate mounds in the Green River Formation, Northern Bridger Basin, Wyoming, USA Sedimentology. 68: 2334-2364. DOI: 10.1111/SED.12852  0.13
1999 Eidsness MK, Burden AE, Richie KA, Kurtz DM, Scott RA, Smith ET, Ichiye T, Beard B, Min T, Kang C. Modulation of the redox potential of the [Fe(SCys)(4)] site in rubredoxin by the orientation of a peptide dipole. Biochemistry. 38: 14803-9. PMID 10555962 DOI: 10.1021/Bi991661F  0.129
2019 Williams RT, Beard BL, Goodwin LB, Sharp WD, Johnson CM, Mozley PS. Radiogenic isotopes record a ‘drop in a bucket’ – A fingerprint of multi-kilometer-scale fluid pathways inferred to drive fault-valve behavior Journal of Structural Geology. 125: 262-269. DOI: 10.1016/J.Jsg.2018.07.023  0.124
2011 Sinha MP, Neidholdt EL, Hurowitz J, Sturhahn W, Beard B, Hecht MH. Laser ablation-miniature mass spectrometer for elemental and isotopic analysis of rocks. The Review of Scientific Instruments. 82: 094102. PMID 21974601 DOI: 10.1063/1.3626794  0.118
2019 Zheng XY, Beard BL, Johnson CM. Constraining silicon isotope exchange kinetics and fractionation between aqueous and amorphous Si at room temperature Geochimica Et Cosmochimica Acta. 253: 267-289. DOI: 10.1016/J.Gca.2019.03.031  0.117
2016 Li W, Beard BL, Li S. Precise measurement of stable potassium isotope ratios using a single focusing collision cell multi-collector ICP-MS Journal of Analytical Atomic Spectrometry. 31: 1023-1029. DOI: 10.1039/C5Ja00487J  0.114
1995 Beard BL, Levi DM, Reich LN. Perceptual learning in parafoveal vision. Vision Research. 35: 1679-90. PMID 7660576 DOI: 10.1016/0042-6989(94)00267-P  0.114
1994 Beard BL, Yager D, Neufeld S. Contrast detection and discrimination in young and older adults. Optometry and Vision Science : Official Publication of the American Academy of Optometry. 71: 783-91. PMID 7898886 DOI: 10.1097/00006324-199412000-00009  0.109
1998 Westheimer G, Beard BL. Orientation dependency for foveal line stimuli: detection and intensity discrimination, resolution, orientation discrimination and vernier acuity. Vision Research. 38: 1097-103. PMID 9666969 DOI: 10.1016/S0042-6989(97)00248-4  0.106
2018 Levitt NP, Eiler JM, Romanek CS, Beard BL, Xu H, Johnson CM. Near Equilibrium 13 C18 O Bonding During Inorganic Calcite Precipitation Under Chemo-Stat Conditions Geochemistry, Geophysics, Geosystems. 19: 901-920. DOI: 10.1002/2017Gc007089  0.105
2018 Haroldson EL, Beard BL, Satkoski AM, Brown PE, Johnson CM. Gold remobilization associated with Mississippi Valley–type fluids: A Pb isotope perspective Geological Society of America Bulletin. 130: 1583-1595. DOI: 10.1130/B31901.1  0.102
1997 Snyder GA, Taylor LA, Crozaz G, Halliday AN, Beard BL, Sobolev VN, Sobolev NV. The origins of Yakutian eclogite xenoliths Journal of Petrology. 38: 85-113.  0.098
2017 Li W, Kwon KD, Li S, Beard BL. Potassium isotope fractionation between K-salts and saturated aqueous solutions at room temperature: Laboratory experiments and theoretical calculations Geochimica Et Cosmochimica Acta. 214: 1-13. DOI: 10.1016/J.Gca.2017.07.037  0.098
2017 Satkoski AM, Beukes NJ, Li W, Beard BL, Johnson CM. Corrigendum to “A redox-stratified ocean 3.2 billion years ago” [Earth Planet. Sci. Lett. 430 (2015) 43–53] Earth and Planetary Science Letters. 460: 317-319. DOI: 10.1016/J.Epsl.2016.12.013  0.098
1999 Ahumada AJ, Beard BL. Template learning models for visual target detection in fixed and random noise Journal of Optical Technology (a Translation of Opticheskii Zhurnal). 66: 817-821.  0.096
1994 Levi DM, Waugh SJ, Beard BL. Spatial scale shifts in amblyopia. Vision Research. 34: 3315-33. PMID 7863616 DOI: 10.1016/0042-6989(94)90067-1  0.096
2021 Carlson AE, Beard BL, Hatfield RG, Laffin M. Absence of West Antarctic-sourced silt at ODP Site 1096 in the Bellingshausen Sea during the last interglaciation: Support for West Antarctic ice-sheet deglaciation Quaternary Science Reviews. 261: 106939. DOI: 10.1016/J.QUASCIREV.2021.106939  0.091
2015 Williams RT, Goodwin LB, Mozley PS, Beard BL, Johnson CM. Tectonic controls on fault zone flow pathways in the rio grande rift, New Mexico, USA Geology. 43: 723-726. DOI: 10.1130/G36799.1  0.089
2020 Williams RT, Beard BL, Goodwin LB, Sharp WD, Johnson CM, Mozley PS. Corrigendum to radiogenic isotopes record a ‘drop in a bucket’–A fingerprint of multi-kilometer-scale fluid pathways inferred to drive fault-valve behavior [J. Struct. Geol. 125 (2019) 262–269] Journal of Structural Geology. 138: 103897. DOI: 10.1016/J.Jsg.2019.103897  0.089
2019 Li W, Li S, Beard BL. Geological cycling of potassium and the K isotopic response: insights from loess and shales Acta Geochimica. 38: 508-516. DOI: 10.1007/s11631-019-00345-x  0.083
2014 Singer BS, Jicha BR, Fournelle JH, Beard BL, Johnson CM, Smith KE, Greene SE, Kita NT, Valley JW, Spicuzza MJ, Rogers NW. Lying in wait: Deep and shallow evolution of dacite beneath Volcán de Santa María, Guatemala Geological Society Special Publication. 385: 209-234. DOI: 10.1144/Sp385.2  0.083
2023 Russell BK, McGeown J, Beard BL. Developing AI enabled sensors and decision support for military operators in the field. Journal of Science and Medicine in Sport. PMID 36934030 DOI: 10.1016/j.jsams.2023.03.001  0.082
2014 Li W, Beard BL, Li C, Johnson CM. Magnesium isotope fractionation between brucite [Mg(OH)2] and Mg aqueous species: Implications for silicate weathering and biogeochemical processes Earth and Planetary Science Letters. 394: 82-93. DOI: 10.1016/J.Epsl.2014.03.022  0.082
1996 Beard BL, Klein SA, Ahumada AJ, Slotnick SD. Training on a vernier acuity task does transfer to untrained retinal locations Investigative Ophthalmology and Visual Science. 37: S696.  0.082
2007 Osaili TM, Griffis CL, Martin EM, Beard BL, Keener AE, Marcy JA. Thermal inactivation of Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes in breaded pork patties. Journal of Food Science. 72: M56-61. PMID 17995843 DOI: 10.1111/j.1750-3841.2006.00264.x  0.076
2020 Munroe JS, Norris ED, Olson PM, Ryan PC, Tappa MJ, Beard BL. Quantifying the contribution of dust to alpine soils in the periglacial zone of the Uinta Mountains, Utah, USA Geoderma. 378: 114631. DOI: 10.1016/J.Geoderma.2020.114631  0.074
2006 Osaili T, Griffis CL, Martin EM, Beard BL, Keener A, Marcy JA. Thermal inactivation studies of Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes in ready-to-eat chicken-fried beef patties. Journal of Food Protection. 69: 1080-6. PMID 16715808  0.069
2004 Murphy RY, Martin EM, Duncan LK, Beard BL, Marcy JA. Thermal process validation for Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes in ground turkey and beef products. Journal of Food Protection. 67: 1394-402. PMID 15270492 DOI: 10.4315/0362-028X-67.7.1394  0.065
1997 Beard BL, Klein SA, Carney T. Motion thresholds can be predicted from contrast discrimination. Journal of the Optical Society of America. a, Optics, Image Science, and Vision. 14: 2449-70. PMID 9291613 DOI: 10.1364/Josaa.14.002449  0.058
2023 Russell BK, Burian BK, Hilmers DC, Beard BL, Martin K, Pletcher DL, Easter B, Lehnhardt K, Levin D. The value of a spaceflight clinical decision support system for earth-independent medical operations. Npj Microgravity. 9: 46. PMID 37344482 DOI: 10.1038/s41526-023-00284-1  0.058
2013 Medaris LG, Jelínek E, Beard BL, Valley JW, Spicuzza MJ, Strnad L. Garnet pyroxenite in the biskupice peridotite, Bohemian Massif: Anatomy of a variscan high-pressure cumulate Journal of Geosciences (Czech Republic). 58: 3-19. DOI: 10.3190/jgeosci.131  0.051
2005 Murphy RY, Osaili T, Beard BL, Marcy JA, Duncan LK. Application of statistical process control, sampling, and validation for producing Listeria monocytogenes-free chicken leg quarters processed in steam followed by impingement cooking Food Microbiology. 22: 47-52. DOI: 10.1016/j.fm.2004.04.008  0.048
1983 Kitterle FL, Beard BL. The effects of flicker adaptation upon temporal contrast enhancement. Perception & Psychophysics. 33: 75-8. PMID 6844095  0.045
1997 Ahumada AJ, Beard BL. Image discrimination models predict detection in fixed but not random noise. Journal of the Optical Society of America. a, Optics, Image Science, and Vision. 14: 2471-6. PMID 9291614  0.044
2003 Murphy RY, Duncan LK, Driscoll KH, Marcy JA, Beard BL. Thermal inactivation of Listeria monocytogenes on ready-to-eat turkey breast meat products during postcook in-package pasteurization with hot water. Journal of Food Protection. 66: 1618-22. PMID 14503715 DOI: 10.4315/0362-028X-66.9.1618  0.042
1999 Beard BL, Ahumada AJ. Detection in fixed and random noise in foveal and parafoveal vision explained by template learning. Journal of the Optical Society of America. a, Optics, Image Science, and Vision. 16: 755-63. PMID 10069061  0.04
2012 Van Kranendonk MJ, Altermann W, Beard BL, Hoffman PF, Johnson CM, Kasting JF, Melezhik VA, Nutman AP, Papineau D, Pirajno F. A Chronostratigraphic Division of the Precambrian: Possibilities and Challenges The Geologic Time Scale 2012. 1: 299-392. DOI: 10.1016/B978-0-444-59425-9.00016-0  0.039
2010 Schurr N, Good R, Alexander A, Picciano P, Ganberg G, Therrien M, Beard BL, Holbrook J. A testbed for investigating task allocation strategies between air traffic controllers and automated agents Proceedings of the National Conference On Artificial Intelligence. 3: 1839-1845.  0.035
2003 Murphy RY, Duncan LK, Driscoll KH, Beard BL, Berrang MB, Marcy JA. Determination of thermal lethality of Listeria monocytogenes in fully cooked chicken breast fillets and strips during postcook in-package pasteurization. Journal of Food Protection. 66: 578-83. PMID 12696679 DOI: 10.4315/0362-028X-66.4.578  0.034
1998 Snyder GA, Taylor LA, Beard BL, Crozaz G, Halliday AN, Sobolev VN, Sobolev NV. Reply to a comment by D. Jacob et al. on 'the origins of yakutian eclogite xenoliths' Journal of Petrology. 39: 1535-1543.  0.033
2016 Whittle J, Yamal JM, Williamson JD, Ford CE, Probstfield JL, Beard BL, Marginean H, Hamilton BP, Suhan PS, Davis BR. Clinical and demographic correlates of medication and visit adherence in a large randomized controlled trial. Bmc Health Services Research. 16: 236. PMID 27391223 DOI: 10.1186/s12913-016-1471-x  0.032
1998 Snyder GA, Taylor LA, Beard BL, Crozaz G, Halliday AN, Sobolev VN, Sobolev NV. Reply to a Comment by D. Jacob et al. on ‘The Origins of Yakutian Eclogite Xenoliths’ Journal of Petrology. 39: 1535-1543. DOI: 10.1093/Petroj/39.8.1535  0.032
1997 Ahumada AJ, Beard BL. Image discrimination models: Detection in fixed and random noise Proceedings of Spie - the International Society For Optical Engineering. 3016: 34-43. DOI: 10.1117/12.274520  0.029
2009 Beard BL, Holbrook J, Geven-Sowul C, Ahumada AJ. Assessment of cognitive abilities in simulated space ascent environments Sae Technical Papers. DOI: 10.4271/2009-01-2425  0.021
2013 Beard BL, Seely R, Holbrook J, Galeon M. The insertion of human factors concerns into nextgen programmatic decisions Proceedings of the Human Factors and Ergonomics Society. 91-95. DOI: 10.1177/1541931213571022  0.013
1996 Beard BL, Fraracci KN, Taylor LA, Snyder GA, Clayton RA, Mayeda TK, Sobolev NV. Petrography and geochemistry of eclogites from the Mir kimberlite, Yakutia, Russia Contributions to Mineralogy and Petrology. 125: 293-310.  0.01
1946 Beard BL. Competition Between Two Entomogenous Bacteria. Science (New York, N.Y.). 103: 371-2. PMID 17748233 DOI: 10.1126/science.103.2673.371-b  0.01
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