Academic Background

1974 Ph.D. U.C. Berkeley
1971 M.S. University of Arizona
1969 B.S. Michigan State University

Elected Positions 

• Gordon Conference Co-Chairman (1983):  Quantification of Petrologic Processes
• American Geophysical Union; Volcanology, Geochemistry, and Petrology (VGP): Section
• Secretary and Program Manager (1984-86); President Elect (1988-90), President (1990-92).

Advisory Positions

American Geophysical Union

• Editor Search Committee (1990-92; Chair)
• Macelwane Medal Committee (1992-94)
• Nominations Committee (1992-94)
• Audit and Legal Affairs Committee (1988-92; Chair 1990-1992)
• Book Board, Chair (1996-1998)
• Publication Committee (1996-2000, Chair 1998-2000)

NASA

• Planetary Geology (1980-83)
• Solid Earth Geophysics Working Group of Earth System Science Committee (1984-85)

National Science Foundation

• Graduate Fellowship Panel (1979-83, Chair, 1983)
• Review and Advisory Panel (March 1984)
• Review Panel (1985-88; 2000-01)
• Ocean Drilling Program, Tectonics Panel (1984-87)

National Research Council

• Steering Committee on Physics and Chemistry of Earth Materials (1985-88)
• U.S. National Committee for the International Geological Correlation Program
  • Chair, (1987-90)
  • U.S. Delegate to International Geological Congress (1989)
• Oversight Committee for Joint U.S.-U.S.S.R. Research in the Evolution of Geological Processes in the History of the Earth (1987-  )
• Associateship Program (1988-91)
  • Site Visiting Committee, Johnson Space Center (1990)
• Solid Earth Sciences Panel on Physics and Chemistry Earth Materials (1988-89)

Geological Society of America

• Day Medal Committee (1989-91) 

Mineralogical Society of America

• MSA Award Committee (1991)
• Management Committee (1992-94)
• Nominating Committee (1999-2002)
  • Roebling Medal Committee (1993--96)
  • Fellows Committee (1997-1999)