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)
Advisory & Review Boards
- Stanford University (1991-1993)
- Rice University Visiting Committee (Chair, 1991–)
- Princeton University Advisory Council (1993-)
- American Museum of Natural History (Idea Person for Hall to Planet Earth, 1998-2000)
- Smithsonian Institution Review and Advisory Panels (1999, 2003)
- Columbia University (2003)
- Earth, Fire, Wind, Water, and Life. German-U.S., Symp. 2004 (co-American Organizer)
- Nuclear Regulatory Commission (2005-2008)
- McMurdo Area Users Committee (2006-2010)
- PreCambrian Research Center, University of Minnesota, Duluth, Minnesota (2007-2011)