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Items: 45

1.

The first day of the Cenozoic.

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, Verhagen C, Christeson GL, Claeys P, Coolen MJL, Goderis S, Goto K, Grieve RAF, McCall N, Osinski GR, Rae ASP, Riller U, Smit J, Vajda V, Wittmann A; Expedition 364 Scientists.

Proc Natl Acad Sci U S A. 2019 Sep 9. pii: 201909479. doi: 10.1073/pnas.1909479116. [Epub ahead of print]

PMID:
31501350
2.

Carbon isotopic heterogeneity of coenzyme F430 and membrane lipids in methane-oxidizing archaea.

Bird LR, Dawson KS, Chadwick GL, Fulton JM, Orphan VJ, Freeman KH.

Geobiology. 2019 Jul 31. doi: 10.1111/gbi.12354. [Epub ahead of print]

PMID:
31364272
3.

Soil organic carbon stability in forests: Distinct effects of tree species identity and traits.

Angst G, Mueller KE, Eissenstat DM, Trumbore S, Freeman KH, Hobbie SE, Chorover J, Oleksyn J, Reich PB, Mueller CW.

Glob Chang Biol. 2018 Dec 16. doi: 10.1111/gcb.14548. [Epub ahead of print]

PMID:
30554462
4.

Grassland fire ecology has roots in the late Miocene.

Karp AT, Behrensmeyer AK, Freeman KH.

Proc Natl Acad Sci U S A. 2018 Nov 27;115(48):12130-12135. doi: 10.1073/pnas.1809758115. Epub 2018 Nov 14.

5.

Viable cyanobacteria in the deep continental subsurface.

Puente-Sánchez F, Arce-Rodríguez A, Oggerin M, García-Villadangos M, Moreno-Paz M, Blanco Y, Rodríguez N, Bird L, Lincoln SA, Tornos F, Prieto-Ballesteros O, Freeman KH, Pieper DH, Timmis KN, Amils R, Parro V.

Proc Natl Acad Sci U S A. 2018 Oct 16;115(42):10702-10707. doi: 10.1073/pnas.1808176115. Epub 2018 Oct 1.

6.

Fatty acid specific δ13C values reveal earliest Mediterranean cheese production 7,200 years ago.

McClure SB, Magill C, Podrug E, Moore AMT, Harper TK, Culleton BJ, Kennett DJ, Freeman KH.

PLoS One. 2018 Sep 5;13(9):e0202807. doi: 10.1371/journal.pone.0202807. eCollection 2018.

7.

The influence of pressure on crude oil biodegradation in shallow and deep Gulf of Mexico sediments.

Nguyen UT, Lincoln SA, Valladares Juárez AG, Schedler M, Macalady JL, Müller R, Freeman KH.

PLoS One. 2018 Jul 3;13(7):e0199784. doi: 10.1371/journal.pone.0199784. eCollection 2018.

8.

Pigment carbon and nitrogen isotopic signatures in euxinic basins.

Fulton JM, Arthur MA, Thomas B, Freeman KH.

Geobiology. 2018 Jul;16(4):429-445. doi: 10.1111/gbi.12285. Epub 2018 Mar 25.

PMID:
29577577
9.

Picomolar-scale compound-specific isotope analyses.

Baczynski AA, Polissar PJ, Juchelka D, Schwieters J, Hilkert A, Summons RE, Freeman KH.

Rapid Commun Mass Spectrom. 2018 May 15;32(9):730-738. doi: 10.1002/rcm.8084.

PMID:
29446506
10.

Microbial communities and organic biomarkers in a Proterozoic-analog sinkhole.

Hamilton TL, Welander PV, Albrecht HL, Fulton JM, Schaperdoth I, Bird LR, Summons RE, Freeman KH, Macalady JL.

Geobiology. 2017 Nov;15(6):784-797. doi: 10.1111/gbi.12252.

PMID:
29035021
11.

Geoffrey Eglinton (1927–2016).

Freeman KH.

Nature. 2016 Apr 21;532(7599):314. No abstract available.

PMID:
27127818
12.

Dietary options and behavior suggested by plant biomarker evidence in an early human habitat.

Magill CR, Ashley GM, Domínguez-Rodrigo M, Freeman KH.

Proc Natl Acad Sci U S A. 2016 Mar 15;113(11):2874-9. doi: 10.1073/pnas.1507055113. Epub 2016 Feb 22.

13.

Draft Genome Sequence of the Piezotolerant and Crude Oil-Degrading Bacterium Rhodococcus qingshengii Strain TUHH-12.

Lincoln SA, Hamilton TL, Valladares Juárez AG, Schedler M, Macalady JL, Müller R, Freeman KH.

Genome Announc. 2015 Apr 9;3(2). pii: e00268-15. doi: 10.1128/genomeA.00268-15.

14.

Earth science: controls on isotopic gradients in rain.

Freeman KH.

Nature. 2014 Dec 4;516(7529):41-2. doi: 10.1038/516041a. No abstract available.

PMID:
25471876
15.

Export of submicron particulate organic matter to mesopelagic depth in an oligotrophic gyre.

Close HG, Shah SR, Ingalls AE, Diefendorf AF, Brodie EL, Hansman RL, Freeman KH, Aluwihare LI, Pearson A.

Proc Natl Acad Sci U S A. 2013 Jul 30;110(31):12565-70. doi: 10.1073/pnas.1217514110. Epub 2013 Jul 15.

16.

Correlating the ancient Maya and modern European calendars with high-precision AMS 14C dating.

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, Hodell DA, Haug GH.

Sci Rep. 2013;3:1597. doi: 10.1038/srep01597.

17.

Water, plants, and early human habitats in eastern Africa.

Magill CR, Ashley GM, Freeman KH.

Proc Natl Acad Sci U S A. 2013 Jan 22;110(4):1175-80. doi: 10.1073/pnas.1209405109. Epub 2012 Dec 24.

18.

Ecosystem variability and early human habitats in eastern Africa.

Magill CR, Ashley GM, Freeman KH.

Proc Natl Acad Sci U S A. 2013 Jan 22;110(4):1167-74. doi: 10.1073/pnas.1206276110. Epub 2012 Dec 24.

19.

Community genomic analysis of an extremely acidophilic sulfur-oxidizing biofilm.

Jones DS, Albrecht HL, Dawson KS, Schaperdoth I, Freeman KH, Pi Y, Pearson A, Macalady JL.

ISME J. 2012 Jan;6(1):158-70. doi: 10.1038/ismej.2011.75. Epub 2011 Jun 30.

20.

Carotenoid biomarkers as an imperfect reflection of the anoxygenic phototrophic community in meromictic Fayetteville Green Lake.

Meyer KM, Macalady JL, Fulton JM, Kump LR, Schaperdoth I, Freeman KH.

Geobiology. 2011 Jul;9(4):321-9. doi: 10.1111/j.1472-4669.2011.00285.x.

PMID:
21682840
21.

Clarifying the influence of water availability and plant types on carbon isotope discrimination by C3 plants.

Freeman KH, Mueller KE, Diefendorf AF, Wing SL, Koch PL.

Proc Natl Acad Sci U S A. 2011 Apr 19;108(16):E59-60; author reply E61. doi: 10.1073/pnas.1102556108. Epub 2011 Apr 7. No abstract available.

22.

Appraising the roles of nutrient availability, global change, and functional traits during the angiosperm rise to dominance.

Mueller KE, Diefendorf AF, Freeman KH, Eissenstat DM.

Ecol Lett. 2010 May;13(5):E1-6. doi: 10.1111/j.1461-0248.2010.01455.x.

PMID:
20529099
23.

Global patterns in leaf 13C discrimination and implications for studies of past and future climate.

Diefendorf AF, Mueller KE, Wing SL, Koch PL, Freeman KH.

Proc Natl Acad Sci U S A. 2010 Mar 30;107(13):5738-43. doi: 10.1073/pnas.0910513107. Epub 2010 Mar 15.

24.

Journal club. A biogeochemist ponders muddy molecules and past climates.

Freeman KH.

Nature. 2009 Dec 10;462(7274):701. doi: 10.1038/462701e. No abstract available.

PMID:
20010651
25.

Measurement of 13C and 15N isotopic composition on nanomolar quantities of C and N.

Polissar PJ, Fulton JM, Junium CK, Turich CC, Freeman KH.

Anal Chem. 2009 Jan 15;81(2):755-63. doi: 10.1021/ac801370c.

PMID:
19072032
26.

Methyl sulfide production by a novel carbon monoxide metabolism in Methanosarcina acetivorans.

Moran JJ, House CH, Vrentas JM, Freeman KH.

Appl Environ Microbiol. 2008 Jan;74(2):540-2. Epub 2007 Nov 16.

27.

Methyl sulfides as intermediates in the anaerobic oxidation of methane.

Moran JJ, Beal EJ, Vrentas JM, Orphan VJ, Freeman KH, House CH.

Environ Microbiol. 2008 Jan;10(1):162-73. Epub 2007 Sep 30.

PMID:
17903217
28.

Late Archean rise of aerobic microbial ecosystems.

Eigenbrode JL, Freeman KH.

Proc Natl Acad Sci U S A. 2006 Oct 24;103(43):15759-64. Epub 2006 Oct 16.

29.

Transient floral change and rapid global warming at the Paleocene-Eocene boundary.

Wing SL, Harrington GJ, Smith FA, Bloch JI, Boyer DM, Freeman KH.

Science. 2005 Nov 11;310(5750):993-6.

30.

Marked decline in atmospheric carbon dioxide concentrations during the Paleogene.

Pagani M, Zachos JC, Freeman KH, Tipple B, Bohaty S.

Science. 2005 Jul 22;309(5734):600-3. Epub 2005 Jun 16.

31.

Trace methane oxidation studied in several Euryarchaeota under diverse conditions.

Moran JJ, House CH, Freeman KH, Ferry JG.

Archaea. 2005 May;1(5):303-9.

32.

Nonmarine crenarchaeol in Nevada hot springs.

Pearson A, Huang Z, Ingalls AE, Romanek CS, Wiegel J, Freeman KH, Smittenberg RH, Zhang CL.

Appl Environ Microbiol. 2004 Sep;70(9):5229-37.

33.

Climate change as the dominant control on glacial-interglacial variations in C3 and C4 plant abundance.

Huang Y, Street-Perrott FA, Metcalfe SE, Brenner M, Moreland M, Freeman KH.

Science. 2001 Aug 31;293(5535):1647-51.

34.

The biogeochemical controls of N2O production and emission in landfill cover soils: the role of methanotrophs in the nitrogen cycle.

Mandernack KW, Kinney CA, Coleman D, Huang YS, Freeman KH, Bogner J.

Environ Microbiol. 2000 Jun;2(3):298-309.

PMID:
11200431
35.

Late miocene atmospheric CO(2) concentrations and the expansion of C(4) grasses

Pagani M, Freeman KH, Arthur MA.

Science. 1999 Aug 6;285(5429):876-9.

36.

Consistent fractionation of 13C in nature and in the laboratory: growth-rate effects in some haptophyte algae.

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.

Global Biogeochem Cycles. 1997 Jun;11(2):279-92. Erratum in: Global Biogeochem Cycles. 1999 Mar;13(1):251-2.

PMID:
11540616
37.
38.

Performance and optimization of a combustion interface for isotope ratio monitoring gas chromatography/mass spectrometry.

Merritt DA, Freeman KH, Ricci MP, Studley SA, Hayes JM.

Anal Chem. 1995 Jul 15;67(14):2461-73.

PMID:
11536720
39.

The effect of aromatization on the isotopic compositions of hydrocarbons during early diagenesis.

Freeman KH, Boreham CJ, Summons RE, Hayes JM.

Org Geochem. 1994;21(10-11):1037-49.

PMID:
11539437
40.

Predictive isotopic biogeochemistry: hydrocarbons from anoxic marine basins.

Freeman KH, Wakeham SG, Hayes JM.

Org Geochem. 1994;21(6-7):629-44.

PMID:
11539435
41.

Acquisition and processing of data for isotope-ratio-monitoring mass spectrometry.

Ricci MP, Merritt DA, Freeman KH, Hayes JM.

Org Geochem. 1994;21(6-7):561-71.

PMID:
11539433
42.

A photoautotrophic source for lycopane in marine water columns.

Wakeham SG, Freeman KH, Pease TK, Hayes JM.

Geochim Cosmochim Acta. 1993 Jan;57(1):159-65.

PMID:
11537733
43.

Fractionation of carbon isotopes by phytoplankton and estimates of ancient CO2 levels.

Freeman KH, Hayes JM.

Global Biogeochem Cycles. 1992 Jun;6(2):185-98.

PMID:
11537848
44.

Evidence from carbon isotope measurements for diverse origins of sedimentary hydrocarbons.

Freeman KH, Hayes JM, Trendel JM, Albrecht P.

Nature. 1990 Jan 18;343(6255):254-6.

PMID:
11536462
45.

Compound-specific isotopic analyses: a novel tool for reconstruction of ancient biogeochemical processes.

Hayes JM, Freeman KH, Popp BN, Hoham CH.

Org Geochem. 1990;16(4-6):1115-28.

PMID:
11540919

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