Publications from 2008-2002:

Moran J.J., House C. H., Vrentas J. and K. H. Freeman (2008)  Methyl sulfide production by a novel carbon monoxide metabolism in Methanosarcina acetivorans. Applied and Environmental Microbiology  74, 540-542.

Moran J., Ventas, J., Beal, E., Orphan V., Freeman K. H. and C.H. House (2008) Methyl sulfides as intermediates in the anaerobic oxidation of methane.  Environmental Microbiology 10 (1), 162–173.

Wakeham S. G., Amann R., Freeman K. H., Hopmans E. C., Jorgensen B. B., Putnam I. F., Schouten S., Sinninghe Damste J. S., Talbot H. M.and D. Woebken (2007) Microbial ecology of the stratified water column of the Black Sea as revealed by a comprehensive biomarker study.  Organic Geochemistry 39, 2070-2097.

Smith F. A., Wing S. and K. H. Freeman (2007) Carbon and hydrogen isotope compositions of plant lipids during the PETM as evidence for the response of terrestrial ecosystems to rapid climate change.  Earth and Planetary Science Letters 262 (1-2): 50-65.

Moran J.J., House C. H. and K.H. Freeman (2007)  Products of trace methane oxidation during non-methylotrophic growth by Methanosarcina. J. Geophys. Res. Biogeosciences.  112 (G2):G02011

Turich C. H., Freeman K. H., Bruns M. A., Conte M., Jones A. D. and S. G. Wakeham (2007)  Marine Archea lipid distributions: Patterns and provenance in the water column and sediments.  Geochimica et Cosmochimica Acta, 71, 3272-3291.

Eigenbrode J. L. and K. H. Freeman (2006) The rise of Late Archean aerobic microbial ecosystems.  Proc. Nat. Acad. Sci. 103, 15759-15764.

Pedenchouk N., Freeman K. H. and N. B. Harris. (2006) Hydrogen isotopic composition of organic matter from the Lower Cretaceous Lacustrine Gabon Basin. Geochimica et Cosmochimica Acta 70(8): 2063-2072.

Smith F. A. and K. H. Freeman (2006) Influence of physiology and climate on δD of leaf wax n-alkanes from C3 and C4 grasses.  Geochimica et Cosmochimica Acta. 70(5): 1172-1187.

Wing S. L., Harrington G. J., Smith F. A., Bloch, J. I., Boyer D. M. and K. H. Freeman (2005) Transient floral change and rapid global warming at the Paleocene-Eocene boundary.  Science 310, 993-996.

Pagani M., Zachos J. C., Freeman K. H., Tipple B. and S. Bohaty (2005) Marked Decline in Atmospheric Carbon Dioxide Concentrations During the Paleogene Science, 309: 600-603.

Moran J. J., House C. H., Freeman K. H. and J. G. Ferry (2005) Trace methane oxidation in Euryarchaeota. Archea 1, i-vii.

Felipe M.A., Kubicki J. D. and K. H. Freeman (2005) A mechanism for carbon isotope exchange between aqueous acetic acid and CO2/HCO3-: an Ab Initio study. Organic Geochemistry 36, 835-850.

Pearson A., Huang Z., Ingalls A.E., Romanek C.S., Wiegel J., Freeman K. H., Smittenberg R.H. and C.L. Zhang (2004) Nonmarine crenarchaeol in Nevada hot springs Applied and Environmental Microbiology 70, 5229-5237.

Harris N.B., Freeman K.H., Pancost R. D., White T.S. and G.D. Mitchell (2004) The character and origin of lacustrine source rocks in the Lower Cretaceous synrift section, Congo Basin, west Africa.  AAPG Bulletin 88, 1163-1184.

Ono, S., Eigenbrode, J.L., Pavlov, A.A., Kharecha, P., Rumble, D., Kasting, J.F. and K. H. Freeman (2003) Sulfur isotopic constraints on the Archean atmosphere and ocean. Earth and Planetary Science Letters 213, 15-30.

Pedentchouk, N., Freeman K. H., Harris, N. B., Clifford D. J. and K. Grice (2004)  Sources of alkylbenzenes in Lower Cretaceous lacustrine source rocks, West African rift basins. Organic Geochemistry 35, 33-45.

Sheridan P. P., Freeman K. H., and J. E. Brenchley (2003). Estimated minimal divergence times of the major Bacterial and Archeaeal phyla.  Geomicrobiology Journal. 20, 91-109.

Ono, S., Eigenbrode, J.L., Pavlov, A.A., Kharecha, P., Rumble, D., Kasting, J.F. and K. H. Freeman (2003). Sulfur isotopic constraints on the Archean atmosphere and ocean. Earth and Planetary Science Letters 213, 15-30.

Pagani M., Freeman K. H., Ohkouchi N. and K. Caldeira (2002) Comparison of water column [CO2aq] with sedimentary alkenone-based estimate: A test of the alkenone-CO2 proxy. Paleoceanography 17, 1069-1081.

Dias, R.F. , Freeman, K. H., Lewan, M. D., Franks, S. G. (2002) d13C of low-molecular-weight organic acids generated by the hydrous pyrolysis of oil-prone source rocks. Geochimica et Cosmochimica Acta 66, 2755-2769.

Dias R.F., Freeman K.H. and Franks S.G. (2002) Gas chromatography-pyrolysis-isotope ratio mass spectrometry: A new method for investigating intramolecular isotopic variation in low molecular weight organic acids. Organic Geochemistry 33, 161-168.

Filley T. R., Freeman K. H., Wilkin R. T and P.G. Hatcher (2002) 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.

Joachimski M. M., Pancost R. D., Freeman K. H., Ostertag-Henning and W. Buggisch (2002). Carbon isotope geochemistry of the Frasnian-Famannian. Palaeogeography, Palaeoclimatology, Palaeoecology 181, 91-109.