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1862 Tacoma Ave.
Berkeley, CA 94707-1936
B.S. Iowa State University, 1962, Chemistry
Ph.D. Massachusetts Institute of Technology, 1966, Analytical Chemistry
Factors controlling the isotope composition (13C, 14C, 2H, 15N, 34S) of organic materials in marine environments; reconstruction of ancient conditions (pCO2, trophic structure) from isotopic compositions of organic compounds in sediments; development of the global carbon cycle over geologic time; techniques of isotope analysis.