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Katherine Haines Freeman - Publications

Affiliations: 
Pennsylvania State University, State College, PA, United States 
Area:
Biogeochemistry, Geochemistry
Website:
http://www.geosc.psu.edu/academic-faculty/freeman-katherine

97 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 Lyons SL, Karp AT, Bralower TJ, Grice K, Schaefer B, Gulick SPS, Morgan JV, Freeman KH. Organic matter from the Chicxulub crater exacerbated the K-Pg impact winter. Proceedings of the National Academy of Sciences of the United States of America. PMID 32989138 DOI: 10.1073/pnas.2004596117  0.64
2020 Sistiaga A, Husain F, Uribelarrea D, Martín-Perea DM, Ferland T, Freeman KH, Diez-Martín F, Baquedano E, Mabulla A, Domínguez-Rodrigo M, Summons RE. Microbial biomarkers reveal a hydrothermally active landscape at Olduvai Gorge at the dawn of the Acheulean, 1.7 Ma. Proceedings of the National Academy of Sciences of the United States of America. PMID 32934140 DOI: 10.1073/Pnas.2004532117  0.44
2020 Karp AT, Holman AI, Hopper P, Grice K, Freeman KH. Fire Distinguishers: Refined interpretations of polycyclic aromatic hydrocarbons for paleo-applications Geochimica Et Cosmochimica Acta. 289: 93-113. DOI: 10.1016/J.Gca.2020.08.024  0.64
2020 Bralower T, Cosmidis J, Heaney PJ, Kump L, Morgan JV, Harper DT, Lyons SL, Freeman KH, Grice K, Wendler JE, Zachos JC, Artemieva N, Chen SA, Gulick SPS, House CH, et al. Origin of a global carbonate layer deposited in the aftermath of the Cretaceous-Paleogene boundary impact Earth and Planetary Science Letters. 548: 116476. DOI: 10.1016/J.Epsl.2020.116476  0.68
2019 Gulick SPS, Bralower TJ, Ormö J, Hall B, Grice K, Schaefer B, Lyons S, Freeman KH, Morgan JV, Artemieva N, Kaskes P, de Graaff SJ, Whalen MT, Collins GS, Tikoo SM, et al. The first day of the Cenozoic. Proceedings of the National Academy of Sciences of the United States of America. PMID 31501350 DOI: 10.1073/Pnas.1909479116  0.64
2019 Bird LR, Dawson KS, Chadwick GL, Fulton JM, Orphan VJ, Freeman KH. Carbon isotopic heterogeneity of coenzyme F430 and membrane lipids in methane-oxidizing archaea. Geobiology. PMID 31364272 DOI: 10.1111/Gbi.12354  0.36
2018 Angst G, Mueller KE, Eissenstat DM, Trumbore S, Freeman KH, Hobbie SE, Chorover J, Oleksyn J, Reich PB, Mueller CW. Soil organic carbon stability in forests: distinct effects of tree species identity and traits. Global Change Biology. PMID 30554462 DOI: 10.1111/Gcb.14548  0.48
2018 Karp AT, Behrensmeyer AK, Freeman KH. Grassland fire ecology has roots in the late Miocene. Proceedings of the National Academy of Sciences of the United States of America. PMID 30429316 DOI: 10.1073/Pnas.1809758115  0.64
2018 Nguyen UT, Lincoln SA, Valladares Juárez AG, Schedler M, Macalady JL, Müller R, Freeman KH. The influence of pressure on crude oil biodegradation in shallow and deep Gulf of Mexico sediments. Plos One. 13: e0199784. PMID 29969471 DOI: 10.1371/Journal.Pone.0199784  0.36
2018 Fulton JM, Arthur MA, Thomas B, Freeman KH. Pigment carbon and nitrogen isotopic signatures in euxinic basins. Geobiology. PMID 29577577 DOI: 10.1111/Gbi.12285  0.64
2018 Baczynski AA, Polissar PJ, Juchelka D, Schwieters J, Hilkert A, Summons RE, Freeman KH. Pico-CSIA: Picomolar Scale Compound-Specific Isotope Analyses. Rapid Communications in Mass Spectrometry : Rcm. PMID 29446506 DOI: 10.1002/Rcm.8084  0.44
2017 Hamilton TL, Welander PV, Albrecht HL, Fulton JM, Schaperdoth I, Bird LR, Summons RE, Freeman KH, Macalady JL. Microbial communities and organic biomarkers in a Proterozoic-analog sinkhole. Geobiology. 15: 784-797. PMID 29035021 DOI: 10.1111/Gbi.12252  0.44
2016 Freeman KH. Geoffrey Eglinton (1927-2016). Nature. 532: 314. PMID 27099019 DOI: 10.1038/532314a  0.01
2016 Magill CR, Ashley GM, Domínguez-Rodrigo M, Freeman KH. Dietary options and behavior suggested by plant biomarker evidence in an early human habitat. Proceedings of the National Academy of Sciences of the United States of America. PMID 26903646 DOI: 10.1073/Pnas.1507055113  0.72
2016 Currie BS, Polissar PJ, Rowley DB, Ingalls M, Li S, Olack G, Freeman KH. Multiproxy paleoaltimetry of the late oligocene-pliocene Oiyug Basin, Southern Tibet American Journal of Science. 316: 401-436. DOI: 10.2475/05.2016.01  0.72
2016 Baczynski AA, McInerney FA, Wing SL, Kraus MJ, Morse PE, Bloch JI, Chung AH, Freeman KH. Distortion of carbon isotope excursion in bulk soil organic matter during the Paleocene-Eocene thermal maximum Bulletin of the Geological Society of America. 128: 1352-1366. DOI: 10.1130/B31389.1  0.72
2015 Lincoln SA, Hamilton TL, Valladares Juárez AG, Schedler M, Macalady JL, Müller R, Freeman KH. Draft Genome Sequence of the Piezotolerant and Crude Oil-Degrading Bacterium Rhodococcus qingshengii Strain TUHH-12. Genome Announcements. 3. PMID 25858843 DOI: 10.1128/Genomea.00268-15  0.36
2015 Baker PA, Fritz SC, Silva CG, Rigsby CA, Absy ML, Almeida RP, Caputo M, Chiessi CM, Cruz FW, Dick CW, Feakins SJ, Figueiredo J, Freeman KH, Hoorn C, Jaramillo C, et al. Trans-Amazon Drilling Project (TADP): Origins and evolution of the forests, climate, and hydrology of the South American tropics Scientific Drilling. 20: 41-49. DOI: 10.5194/Sd-20-41-2015  0.72
2015 Feygenson M, Formo EV, Freeman K, Schieber N, Gai Z, Rondinone AJ. Implications of Room Temperature Oxidation on Crystal Structure and Exchange Bias Effect in Co/CoO Nanoparticles Journal of Physical Chemistry C. 119: 26219-26228. DOI: 10.1021/Acs.Jpcc.5B09046  0.32
2015 Magill CR, Denis EH, Freeman KH. Rapid sequential separation of sedimentary lipid biomarkers via selective accelerated solvent extraction Organic Geochemistry. 88: 29-34. DOI: 10.1016/J.Orggeochem.2015.07.009  0.72
2015 Junium CK, Freeman KH, Arthur MA. Controls on the stratigraphic distribution and nitrogen isotopic composition of zinc, vanadyl and free base porphyrins through Oceanic Anoxic Event 2 at Demerara Rise Organic Geochemistry. 80: 60-71. DOI: 10.1016/J.Orggeochem.2014.10.009  0.72
2015 Cui Y, Bercovici A, Yu J, Kump LR, Freeman KH, Su S, Vajda V. Carbon cycle perturbation expressed in terrestrial Permian-Triassic boundary sections in South China Global and Planetary Change. DOI: 10.1016/J.Gloplacha.2015.10.018  0.72
2015 Junium CK, Arthur MA, Freeman KH. Compound-specific δ<sup>15</sup>N and chlorin preservation in surface sediments of the Peru Margin with implications for ancient bulk δ<sup>15</sup>N records Geochimica Et Cosmochimica Acta. 160: 306-318. DOI: 10.1016/J.Gca.2014.12.018  0.72
2015 Diefendorf AF, Freeman KH, Wing SL, Currano ED, Mueller KE. Paleogene plants fractionated carbon isotopes similar to modern plants Earth and Planetary Science Letters. 429: 33-44. DOI: 10.1016/J.Epsl.2015.07.029  0.72
2014 Freeman KH. Earth science: controls on isotopic gradients in rain. Nature. 516: 41-2. PMID 25471876 DOI: 10.1038/516041A  0.72
2014 Belmecheri S, Maxwell RS, Taylor AH, Davis KJ, Freeman KH, Munger WJ. Tree-ring δ 13C tracks flux tower ecosystem productivity estimates in a NE temperate forest Environmental Research Letters. 9. DOI: 10.1088/1748-9326/9/7/074011  0.72
2014 Diefendorf AF, Freeman KH, Wing SL. A comparison of terpenoid and leaf fossil vegetation proxies in Paleocene and Eocene Bighorn Basin sediments Organic Geochemistry. 71: 30-42. DOI: 10.1016/J.Orggeochem.2014.04.004  0.72
2014 Graham HV, Patzkowsky ME, Wing SL, Parker GG, Fogel ML, Freeman KH. Isotopic characteristics of canopies in simulated leaf assemblages Geochimica Et Cosmochimica Acta. 144: 82-95. DOI: 10.1016/J.Gca.2014.08.032  0.72
2014 Good SP, Mallia DV, Denis EH, Freeman KH, Feng X, Li S, Zegre N, Lin JC, Bowen GJ. High Frequency Trends in the Isotopic Composition of Superstorm Sandy Learning From the Impacts of Superstorm Sandy. 41-55. DOI: 10.1016/B978-0-12-801520-9.00004-3  0.24
2013 Close HG, Shah SR, Ingalls AE, Diefendorf AF, Brodie EL, Hansman RL, Freeman KH, Aluwihare LI, Pearson A. Export of submicron particulate organic matter to mesopelagic depth in an oligotrophic gyre. Proceedings of the National Academy of Sciences of the United States of America. 110: 12565-70. PMID 23858459 DOI: 10.1073/Pnas.1217514110  0.72
2013 Kennett DJ, Hajdas I, Culleton BJ, Belmecheri S, Martin S, Neff H, Awe J, Graham HV, Freeman KH, Newsom L, Lentz DL, Anselmetti FS, Robinson M, Marwan N, Southon J, et al. Correlating the ancient Maya and modern European calendars with high-precision AMS 14C dating. Scientific Reports. 3: 1597. PMID 23579869 DOI: 10.1038/Srep01597  0.48
2013 Magill CR, Ashley GM, Freeman KH. Water, plants, and early human habitats in eastern Africa. Proceedings of the National Academy of Sciences of the United States of America. 110: 1175-80. PMID 23267102 DOI: 10.1073/Pnas.1209405109  0.72
2013 Magill CR, Ashley GM, Freeman KH. Ecosystem variability and early human habitats in eastern Africa. Proceedings of the National Academy of Sciences of the United States of America. 110: 1167-74. PMID 23267092 DOI: 10.1073/Pnas.1206276110  0.72
2013 Mueller KE, Eissenstat DM, Müller CW, Oleksyn J, Reich PB, Freeman KH. What controls the concentration of various aliphatic lipids in soil? Soil Biology and Biochemistry. 63: 14-17. DOI: 10.1016/J.Soilbio.2013.03.021  0.72
2013 Dawson KS, Schaperdoth I, Freeman KH, Macalady JL. Anaerobic biodegradation of the isoprenoid biomarkers pristane and phytane Organic Geochemistry. 65: 118-126. DOI: 10.1016/J.Orggeochem.2013.10.010  0.72
2013 Pancost RD, Freeman KH, Herrmann AD, Patzkowsky ME, Ainsaar L, Martma T. Reconstructing Late Ordovician carbon cycle variations Geochimica Et Cosmochimica Acta. 105: 433-454. DOI: 10.1016/J.Gca.2012.11.033  0.72
2012 Jones DS, Albrecht HL, Dawson KS, Schaperdoth I, Freeman KH, Pi Y, Pearson A, Macalady JL. Community genomic analysis of an extremely acidophilic sulfur-oxidizing biofilm. The Isme Journal. 6: 158-70. PMID 21716305 DOI: 10.1038/Ismej.2011.75  0.72
2012 Sachse D, Billault I, Bowen GJ, Chikaraishi Y, Dawson TE, Feakins SJ, Freeman KH, Magill CR, McInerney FA, Van Der Meer MTJ, Polissar P, Robins RJ, Sachs JP, Schmidt HL, Sessions AL, et al. Molecular paleohydrology: Interpreting the hydrogen-isotopic composition of lipid biomarkers from photosynthesizing organisms Annual Review of Earth and Planetary Sciences. 40: 221-249. DOI: 10.1146/Annurev-Earth-042711-105535  0.72
2012 Algeo T, Henderson CM, Ellwood B, Rowe H, Elswick E, Bates S, Lyons T, Hower JC, Smith C, Maynard B, Hays LE, Summons RE, Fulton J, Freeman KH. Evidence for a diachronous Late Permian marine crisis from the Canadian Arctic region Bulletin of the Geological Society of America. 124: 1424-1448. DOI: 10.1130/B30505.1  0.72
2012 Cui Y, Kump LR, Ridgwell AJ, Charles AJ, Junium CK, Diefendorf AF, Freeman KH, Urban NM, Harding IC. Reply to 'Constraints on hyperthermals' Nature Geoscience. 5: 231-232. DOI: 10.1038/Ngeo1424  0.72
2012 Fulton JM, Arthur MA, Freeman KH. Black Sea nitrogen cycling and the preservation of phytoplankton δ15N signals during the Holocene Global Biogeochemical Cycles. 26. DOI: 10.1029/2011Gb004196  0.72
2012 Mueller KE, Polissar PJ, Oleksyn J, Freeman KH. Differentiating temperate tree species and their organs using lipid biomarkers in leaves, roots and soil Organic Geochemistry. 52: 130-141. DOI: 10.1016/J.Orggeochem.2012.08.014  0.72
2012 Fulton JM, Arthur MA, Freeman KH. Subboreal aridity and scytonemin in the Holocene Black Sea Organic Geochemistry. 49: 47-55. DOI: 10.1016/J.Orggeochem.2012.05.008  0.72
2012 Dawson KS, Freeman KH, Macalady JL. Molecular characterization of core lipids from halophilic archaea grown under different salinity conditions Organic Geochemistry. 48: 1-8. DOI: 10.1016/J.Orggeochem.2012.04.003  0.72
2012 Diefendorf AF, Freeman KH, Wing SL. Distribution and carbon isotope patterns of diterpenoids and triterpenoids in modern temperate C 3 trees and their geochemical significance Geochimica Et Cosmochimica Acta. 85: 342-356. DOI: 10.1016/J.Gca.2012.02.016  0.72
2011 Meyer KM, Macalady JL, Fulton JM, Kump LR, Schaperdoth I, Freeman KH. Carotenoid biomarkers as an imperfect reflection of the anoxygenic phototrophic community in meromictic Fayetteville Green Lake. Geobiology. 9: 321-9. PMID 21682840 DOI: 10.1111/J.1472-4669.2011.00285.X  0.72
2011 Freeman KH, Mueller KE, Diefendorf AF, Wing SL, Koch PL. Clarifying the influence of water availability and plant types on carbon isotope discrimination by C3 plants. Proceedings of the National Academy of Sciences of the United States of America. 108: E59-60; author reply. PMID 21474782 DOI: 10.1073/Pnas.1102556108  0.72
2011 Cui Y, Kump LR, Ridgwell AJ, Charles AJ, Junium CK, Diefendorf AF, Freeman KH, Urban NM, Harding IC. Slow release of fossil carbon during the palaeocene-eocene thermal maximum Nature Geoscience. 4: 481-485. DOI: 10.1038/Ngeo1179  0.72
2011 Diefendorf AF, Freeman KH, Wing SL, Graham HV. Production of n-alkyl lipids in living plants and implications for the geologic past Geochimica Et Cosmochimica Acta. 75: 7472-7485. DOI: 10.1016/J.Gca.2011.09.028  0.72
2011 McInerney FA, Helliker BR, Freeman KH. Hydrogen isotope ratios of leaf wax n-alkanes in grasses are insensitive to transpiration Geochimica Et Cosmochimica Acta. 75: 541-554. DOI: 10.1016/J.Gca.2010.10.022  0.72
2010 Mueller KE, Diefendorf AF, Freeman KH, Eissenstat DM. Appraising the roles of nutrient availability, global change, and functional traits during the angiosperm rise to dominance. Ecology Letters. 13: E1-6. PMID 20529099 DOI: 10.1111/J.1461-0248.2010.01455.X  0.56
2010 Diefendorf AF, Mueller KE, Wing SL, Koch PL, Freeman KH. Global patterns in leaf 13C discrimination and implications for studies of past and future climate. Proceedings of the National Academy of Sciences of the United States of America. 107: 5738-43. PMID 20231481 DOI: 10.1073/Pnas.0910513107  0.72
2010 Polissar PJ, Freeman KH. Effects of aridity and vegetation on plant-wax δD in modern lake sediments Geochimica Et Cosmochimica Acta. 74: 5785-5797. DOI: 10.1016/J.Gca.2010.06.018  0.72
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  0.72
2009 Polissar PJ, Fulton JM, Junium CK, Turich CC, Freeman KH. Measurement of 13C and 15N isotopic composition on nanomolar quantities of C and N. Analytical Chemistry. 81: 755-63. PMID 19072032 DOI: 10.1021/Ac801370C  0.72
2009 Polissar PJ, Freeman KH, Rowley DB, McInerney FA, Currie BS. Paleoaltimetry of the Tibetan Plateau from D/H ratios of lipid biomarkers Earth and Planetary Science Letters. 287: 64-76. DOI: 10.1016/J.Epsl.2009.07.037  0.72
2008 Moran JJ, House CH, Vrentas JM, Freeman KH. Methyl sulfide production by a novel carbon monoxide metabolism in Methanosarcina acetivorans Applied and Environmental Microbiology. 74: 540-542. PMID 18024677 DOI: 10.1128/Aem.01750-07  0.72
2008 Moran JJ, Beal EJ, Vrentas JM, Orphan VJ, Freeman KH, House CH. Methyl sulfides as intermediates in the anaerobic oxidation of methane Environmental Microbiology. 10: 162-173. PMID 17903217 DOI: 10.1111/J.1462-2920.2007.01441.X  0.72
2008 Turich C, Freeman KH, Jones AD, Bruns MA, Conte M, Wakeham SG. Reply to the Comment by S. Schouten, M. van der Meer, E. Hopmans, and J.S. Sinninghe Damsté on "Lipids of marine Archaea: Patterns and provenance in the water column" Geochimica Et Cosmochimica Acta. 72: 5347-5349. DOI: 10.1016/J.Gca.2008.04.042  0.72
2007 Moran JJ, House CH, Thomas B, Freeman KH. Products of trace methane oxidation during nonmethyltrophic growth by Methanosarcina Journal of Geophysical Research: Biogeosciences. 112. DOI: 10.1029/2006Jg000268  0.72
2007 Wakeham SG, Amann R, Freeman KH, Hopmans EC, Jørgensen BB, Putnam IF, Schouten S, Sinninghe Damsté JS, Talbot HM, Woebken D. Microbial ecology of the stratified water column of the Black Sea as revealed by a comprehensive biomarker study Organic Geochemistry. 38: 2070-2097. DOI: 10.1016/J.Orggeochem.2007.08.003  0.72
2007 Turich C, Freeman KH, Bruns MA, Conte M, Jones AD, Wakeham SG. Lipids of marine Archaea: Patterns and provenance in the water-column and sediments Geochimica Et Cosmochimica Acta. 71: 3272-3291. DOI: 10.1016/J.Gca.2007.04.013  0.72
2006 Eigenbrode JL, Freeman KH. Late Archean rise of aerobic microbial ecosystems. Proceedings of the National Academy of Sciences of the United States of America. 103: 15759-64. PMID 17043234 DOI: 10.1073/Pnas.0607540103  0.32
2006 Pedentchouk N, Freeman KH, Harris NB. Different response of δD values of n-alkanes, isoprenoids, and kerogen during thermal maturation Geochimica Et Cosmochimica Acta. 70: 2063-2072. DOI: 10.1016/J.Gca.2006.01.013  0.72
2006 Smith FA, Freeman KH. Influence of physiology and climate on δD of leaf wax n-alkanes from C3 and C4 grasses Geochimica Et Cosmochimica Acta. 70: 1172-1187. DOI: 10.1016/J.Gca.2005.11.006  0.72
2005 Wing SL, Harrington GJ, Smith FA, Bloch JI, Boyer DM, Freeman KH. Transient floral change and rapid global warming at the Paleocene-Eocene boundary. Science (New York, N.Y.). 310: 993-6. PMID 16284173 DOI: 10.1126/Science.1116913  0.72
2005 Pagani M, Zachos JC, Freeman KH, Tipple B, Bohaty S. Marked decline in atmospheric carbon dioxide concentrations during the Paleogene. Science (New York, N.Y.). 309: 600-3. PMID 15961630 DOI: 10.1126/Science.1110063  0.72
2005 Moran JJ, House CH, Freeman KH, Ferry JG. Trace methane oxidation studied in several Euryarchaeota under diverse conditions Archaea. 1: 303-309. PMID 15876563 DOI: 10.1155/2005/650670  0.72
2005 Felipe MA, Kubicki JD, Freeman KH. A mechanism for carbon isotope exchange between aqueous acetic acid and CO2/HCO3-: An ab initio study Organic Geochemistry. 36: 835-850. DOI: 10.1016/J.Orggeochem.2005.01.012  0.72
2004 Pearson A, Huang Z, Ingalls AE, Romanek CS, Wiegel J, Freeman KH, Smittenberg RH, Zhang CL. Nonmarine crenarchaeol in Nevada hot springs Applied and Environmental Microbiology. 70: 5229-5237. PMID 15345404 DOI: 10.1128/Aem.70.9.5229-5237.2004  0.72
2004 Harris NB, Freeman KH, Pancost RD, White TS, Mitchell GD. The character and origin of lacustrine source rocks in the Lower Cretaceous synrift section, Congo Basin, west Africa Aapg Bulletin. 88: 1163-1184. DOI: 10.1306/02260403069  0.72
2004 Pedentchouk N, Freeman KH, Harris NB, Clifford DJ, Grice K. Sources of alkylbenzenes in Lower Cretaceous lacustrine source rocks, West African rift basins Organic Geochemistry. 35: 33-45. DOI: 10.1016/J.Orggeochem.2003.04.001  0.72
2003 Sheridan PP, Freeman KH, Brenchley JE. Estimated minimal divergence times of the major bacterial and archaeal phyla Geomicrobiology Journal. 20: 1-14. DOI: 10.1080/01490450303891  0.72
2003 Ono S, Eigenbrode JL, Pavlov AA, Kharecha P, Rumble D, Kasting JF, Freeman KH. New insights into Archean sulfur cycle from mass-independent sulfur isotope records from the Hamersley Basin, Australia Earth and Planetary Science Letters. 213: 15-30. DOI: 10.1016/S0012-821X(03)00295-4  0.72
2002 Filley TR, Freeman KH, Wilkin RT, Hatcher PG. Biogeochemical controls on reaction of sedimentary organic matter and aqueous sulfides in holocene sediments of Mud Lake, Florida Geochimica Et Cosmochimica Acta. 66: 937-954. DOI: 10.1016/S0016-7037(01)00829-8  0.72
2001 Rosell-Melé A, Bard E, Emeis KC, Grimalt JO, Müller P, Schneider R, Bouloubassi I, Epstein B, Fahl K, Fluegge A, Freeman K, Goñi M, Güntner U, Hartz D, Hellebust S, et al. Precision of the current methods to measure the alkenone proxy U37 K′ and absolute alkenone abundance in sediments: Results of an interlaboratory comparison study Geochemistry, Geophysics, Geosystems. 2. DOI: 10.1029/2000Gc000141  0.72
2001 Filley TR, Freeman KH, Bianchi TS, Baskaran M, Colarusso LA, Hatcher PG. An isotopic biogeochemical assessment of shifts in organic matter input to Holocene sediments from Mud Lake, Florida Organic Geochemistry. 32: 1153-1167. DOI: 10.1016/S0146-6380(01)00063-8  0.72
2001 Franks SG, Dias RF, Freeman KH, Boles JR, Holbal A, Fincannon AL, Jordanl ED. Carbon isotopic composition of organic acids in oil field waters, San Joaquin Basin, California, USA Geochimica Et Cosmochimica Acta. 65: 1301-1310. DOI: 10.1016/S0016-7037(00)00606-2  0.72
2000 Mandernack KW, Kinney CA, Coleman D, Huang YS, Freeman KH, Bogner J. The biogeochemical controls of N2O production and emission in landfill cover soils: the role of methanotrophs in the nitrogen cycle. Environmental Microbiology. 2: 298-309. PMID 11200431 DOI: 10.1046/J.1462-2920.2000.00106.X  0.72
2000 Pagani M, Arthur MA, Freeman KH. Variations in Miocene phytoplankton growth rates in the Southwest Atlantic: Evidence for changes in ocean circulation Paleoceanography. 15: 486-496. DOI: 10.1029/1999Pa000484  0.72
2000 Pagani M, Freeman KH, Arthur MA. Isotope analyses of molecular and total organic carbon from Miocene sediments Geochimica Et Cosmochimica Acta. 64: 37-49. DOI: 10.1016/S0016-7037(99)00151-9  0.72
1999 Bidigare RR, Fluegge A, Freeman KH, Hanson KL, Hayes JM, Hollander D, Jasper JP, King LL, Laws EA, Milder J, Millero FJ, Pancost R, Popp BN, Steinberg PA, Wakeham SG. Erratum: Consistent fractionation of13C in nature and in the laboratory: Growth-rate effects in some haptophyte algae (Global Biogeochemical Cycles (1997) 11:2 (279-292)) Global Biogeochemical Cycles. 13: 251-252. PMID 11542812 DOI: 10.1029/1998Gb900011  0.72
1999 Pancost RD, Freeman KH, Patzkowsky ME. Organic-matter source variation and the expression of a late Middle Ordovician carbon isotope excursion Geology. 27: 1015-1018. DOI: 10.1130/0091-7613(1999)027<1015:Omsvat>2.3.Co;2  0.72
1999 Pagani M, Freeman KH, Arthur MA. Late miocene atmospheric CO2 concentrations and the expansion of C4 grasses Science. 285: 876-879. DOI: 10.1126/Science.285.5429.876  0.72
1998 Hayes JM, Freeman KH, Popp BN, Hoham CH. Compound-specific isotopic analyses: a novel tool for reconstruction of ancient biogeochemical processes. Organic Geochemistry. 16: 1115-28. PMID 11540919 DOI: 10.1016/0146-6380(90)90147-R  0.44
1998 Pancost RD, Freeman KH, Patzkowsky ME, Wavrek DA, Collister JW. Molecular indicators of redox and marine photoautotroph composition in the late Middle Ordovician of Iowa, U.S.A. Organic Geochemistry. 29: 1649-1662. DOI: 10.1016/S0146-6380(98)00185-5  0.72
1997 Dias RF, Freeman KH. Carbon Isotope Analyses of Semivolatile Organic Compounds in Aqueous Media Using Solid-Phase Microextraction and Isotope Ratio Monitoring GC/MS. Analytical Chemistry. 69: 944-50. PMID 21639231 DOI: 10.1021/Ac960635+  0.88
1997 Bidigare RR, Fluegge A, Freeman KH, Hanson KL, Hayes JM, Hollander D, Jasper JP, King LL, Laws EA, Milder J, Millero FJ, Pancost R, Popp BN, Steinberg PA, Wakeham SG. Consistent fractionation of 13C in nature and in the laboratory: growth-rate effects in some haptophyte algae. Global Biogeochemical Cycles. 11: 279-92. PMID 11540616 DOI: 10.1029/96Gb03939  0.72
1997 Patzkowsky ME, Slupik LM, Arthur MA, Pancost RD, Freeman KH. Late Middle Ordovician environmental change and extinction: Harbinger of the late Ordovician or continuation of Cambrian patterns? Geology. 25: 911-914. DOI: 10.1130/0091-7613(1997)025<0911:Lmoeca>2.3.Co;2  0.72
1996 Filley TR, Freeman KH, Hatcher PG. Carbon isotope relationships between sulfide-bound steroids and proposed functionalized lipid precursors in sediments from the Santa Barbara Basin, California Organic Geochemistry. 25: 367-377. DOI: 10.1016/S0146-6380(96)00142-8  0.72
1995 Merritt DA, Freeman KH, Ricci MP, Studley SA, Hayes JM. Performance and optimization of a combustion interface for isotope ratio monitoring gas chromatography/mass spectrometry Analytical Chemistry. 67: 2461-2473. PMID 11536720 DOI: 10.1021/Ac00110A022  0.72
1994 Freeman KH, Boreham CJ, Summons RE, Hayes JM. The effect of aromatization on the isotopic compositions of hydrocarbons during early diagenesis Organic Geochemistry. 21: 1037-1049. PMID 11539437 DOI: 10.1016/0146-6380(94)90067-1  0.72
1994 Freeman KH, Wakeham SG, Hayes JM. Predictive isotopic biogeochemistry: Hydrocarbons from anoxic marine basins Organic Geochemistry. 21: 629-644. PMID 11539435 DOI: 10.1016/0146-6380(94)90009-4  0.72
1994 Ricci MP, Merritt DA, Freeman KH, Hayes JM. Acquisition and processing of data for isotope-ratio-monitoring mass spectrometry Organic Geochemistry. 21: 561-571. PMID 11539433 DOI: 10.1016/0146-6380(94)90002-7  0.72
1993 Wakeham SG, Freeman KH, Pease TK, Hayes JM. A photoautotrophic source for lycopane in marine water columns. Geochimica Et Cosmochimica Acta. 57: 159-65. PMID 11537733 DOI: 10.1016/0016-7037(93)90476-D  0.72
1992 Freeman KH, Hayes JM. Fractionation of carbon isotopes by phytoplankton and estimates of ancient CO2 levels Global Biogeochemical Cycles. 6: 185-198. PMID 11537848 DOI: 10.1029/92Gb00190  0.72
1990 Freeman KH, Hayes JM, Trendel JM, Albrecht P. Evidence from carbon isotope measurements for diverse origins of sedimentary hydrocarbons Nature. 343: 254-256. PMID 11536462 DOI: 10.1038/343254A0  0.72
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