Katherine H. Freeman

Molecular Paleohydrology: Interpreting the Hydrogen-Isotopic Composition of Lipid Biomarkers from Photosynthesizing Organisms

Dirk Sachse, Isabelle Billault, Gabriel J. Bowen et al. · Annual Review of Earth and Planetary Sciences · 2012 · 1K citations

Natural Sciences, Earth Sciences, Paleontology +17

Marked Decline in Atmospheric Carbon Dioxide Concentrations During the Paleogene

Mark Pagani, James C. Zachos, Katherine H. Freeman et al. · Science · 2005 · 923 citations

Natural Sciences, Earth Sciences, Atmospheric Chemistry +16

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

Aaron F. Diefendorf, Kevin E. Mueller, Scott L. Wing et al. · Proceedings of the National Academy of Sciences · 2010 · 869 citations · Full text

Life Sciences, Plant Biology, Plant Sciences +16

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

John M. Hayes, Katherine H. Freeman, Brian N. Popp et al. · Organic Geochemistry · 1990 · 832 citations

Natural Sciences, Earth Sciences, Paleontology +16

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

Katherine H. Freeman, John M. Hayes · Global Biogeochemical Cycles · 1992 · 650 citations

Natural Sciences, Earth Sciences, Oceanography +17