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

22 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
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