Katherine H. Freeman
Katherine H. Freeman
Evan Pugh University Professor, Penn State
Verified email at - Homepage
Cited by
Cited by
Marked decline in atmospheric carbon dioxide concentrations during the Paleogene
M Pagani, JC Zachos, KH Freeman, B Tipple, S Bohaty
science 309 (5734), 600-603, 2005
Compound-specific isotopic analyses: a novel tool for reconstruction of ancient biogeochemical processes
JM Hayes, KH Freeman, BN Popp, CH Hoham
Organic geochemistry 16 (4-6), 1115-1128, 1990
Molecular paleohydrology: interpreting the hydrogen-isotopic composition of lipid biomarkers from photosynthesizing organisms
D Sachse, I Billault, GJ Bowen, Y Chikaraishi, TE Dawson, SJ Feakins, ...
Annual Review of Earth and Planetary Sciences 40, 221-249, 2012
Global patterns in leaf 13C discrimination and implications for studies of past and future climate
AF Diefendorf, KE Mueller, SL Wing, PL Koch, KH Freeman
Proceedings of the National Academy of Sciences 107 (13), 5738-5743, 2010
Fractionation of carbon isotopes by phytoplankton and estimates of ancient CO2 levels
KH Freeman, JM Hayes
Global biogeochemical cycles 6 (2), 185-198, 1992
Evidence from carbon isotope measurements for diverse origins of sedimentary hydrocarbons
KH Freeman, JM Hayes, JM Trendel, P Albrecht
Nature 343 (6255), 254-256, 1990
Transient floral change and rapid global warming at the Paleocene-Eocene boundary
SL Wing, GJ Harrington, FA Smith, JI Bloch, DM Boyer, KH Freeman
Science 310 (5750), 993-996, 2005
Late Miocene atmospheric CO2 concentrations and the expansion of C4 grasses
M Pagani, KH Freeman, MA Arthur
Science 285 (5429), 876-879, 1999
Miocene evolution of atmospheric carbon dioxide
M Pagani, MA Arthur, KH Freeman
Paleoceanography 14 (3), 273-292, 1999
Consistent fractionation of 13C in nature and in the laboratory: Growth‐rate effects in some haptophyte algae
RR Bidigare, A Fluegge, KH Freeman, KL Hanson, JM Hayes, ...
Global Biogeochemical Cycles 11 (2), 279-292, 1997
Climate change as the dominant control on glacial-interglacial variations in C3 and C4 plant abundance
Y Huang, FA Street-Perrott, SE Metcalfe, M Brenner, M Moreland, ...
Science 293 (5535), 1647-1651, 2001
New insights into Archean sulfur cycle from mass-independent sulfur isotope records from the Hamersley Basin, Australia
S Ono, JL Eigenbrode, AA Pavlov, P Kharecha, D Rumble III, JF Kasting, ...
Earth and Planetary Science Letters 213 (1-2), 15-30, 2003
Influence of physiology and climate on δD of leaf wax n-alkanes from C3 and C4 grasses
FA Smith, KH Freeman
Geochimica et Cosmochimica Acta 70 (5), 1172-1187, 2006
Production of n-alkyl lipids in living plants and implications for the geologic past
AF Diefendorf, KH Freeman, SL Wing, HV Graham
Geochimica et Cosmochimica Acta 75 (23), 7472-7485, 2011
Paleoaltimetry of the Tibetan Plateau from D/H ratios of lipid biomarkers
PJ Polissar, KH Freeman, DB Rowley, FA McInerney, BS Currie
Earth and Planetary Science Letters 287 (1-2), 64-76, 2009
Slow release of fossil carbon during the Palaeocene–Eocene Thermal Maximum
Y Cui, LR Kump, AJ Ridgwell, AJ Charles, CK Junium, AF Diefendorf, ...
Nature Geoscience 4 (7), 481-485, 2011
Water column anoxia, enhanced productivity and concomitant changes in δ13C and δ34S across the Frasnian–Famennian boundary (Kowala—Holy Cross Mountains/Poland)
MM Joachimski, C Ostertag-Henning, RD Pancost, H Strauss, ...
Chemical Geology 175 (1-2), 109-131, 2001
Late Archean rise of aerobic microbial ecosystems
JL Eigenbrode, KH Freeman
Proceedings of the National Academy of Sciences 103 (43), 15759-15764, 2006
Carbon isotope geochemistry of the Frasnian–Famennian transition
MM Joachimski, RD Pancost, KH Freeman, C Ostertag-Henning, ...
Palaeogeography, Palaeoclimatology, Palaeoecology 181 (1-3), 91-109, 2002
Molecular and isotopic records of C4 grassland expansion in the late Miocene
KH Freeman, LA Colarusso
Geochimica et Cosmochimica Acta 65 (9), 1439-1454, 2001
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