Research 2003-present: Associate Professor, Department of Geology & Affiliate Faculty, Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park 2001- present: Affiliate Faculty, Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park 1997-2003: Assistant Professor, Department of Geology, University of Maryland, College Park 1995-1997 Research Associate, Harvard University 1993-1995 Research Associate and Mass Spectrometry Facility Manager, Harvard University 1990-1993 Post-doctoral Fellow, Harvard University, supervisors Profs. A.H. Knoll and S.B. Jacobsen 1983-1990 Research Assistant, Indiana University, Biogeochemical Laboratories, supervisors Profs. J. M. Hayes and C. Klein 1981 Research Assistant, Louisiana State University, supervisor Prof. J. S. Hanor

Dr. Alan Jay Kaufman Associate Professor of Geology Department of Geology, University of Maryland College Park, MD 20742-4211 Office: (301) 405-0395, Fax: (301) 405-3597, kaufman@geol.umd.edu