Geosciences Research Division

Distinguished Professor of Marine Chemistry

Research Interests:

  • The geochemistry of amino acids with an emphasis on diagenetic reactions and their implications and applications
  • The sources and stability of organic compounds on the primitive Earth and other solar system bodies
  • The detection of possible remnants of ancient life on Mars both by in situ analyses on the planet, and from the study of Martian meteorites
  • Stable carbon and nitrogen isotopic chronologies obtained from animal teeth


  • B.S., San Diego State University
  • Ph.D., University of California, San Diego