Geosciences Research Division

Distinguished Professor of Earth Sciences

Research Interests

  • The role and fluxes of fluids and solutes in subduction zones and ridge-crests
  • Marine gas hydrates and implications for the C cycle and global change
  • Chemical paleoceanography
  • The geochemistry and diagenesis of marine sediments and the implications for paleoceanographic interpretations
  • The origin of marine authigenic minerals: phosphates, dolomites, silicates (cherts), and barites, and their potential as recorders of seawater chemistry


  • M.S., Hebrew University of Jerusalem
  • PhD, Harvard University