IODP-USIO Activities
- Oversight of IODP-USIO Science Services, Texas A&M University
Research Interests
- During an active, 20-year research career, I developed a comprehensive understanding of the evolution of the continental crust of the Earth with emphasis on the thennal, chemical, and physical evolution of the upper mantle and crust through the planet's history. Research within a wide array of related disciplines — mineralogy, crystallography, experimental petrology, rock physics, thermodynamics, and spectroscopy — was combined to elucidate the quantitative pressure-temperature-time development of ancient mountain belts. Our work challenged established dogma of lower crust as andesitic in composition. We proposed new models for crustal growth that required the vertical addition of basaltic magmas at the base of existing crust, rather than by the lateral accretion of andesitic island arcs, previously viewed as the primary mechanism for crust formation.
- Selected publications
Experience
- 2007 - 2008: President, JOI Division, Consortium for Ocean Leadership
- 2000 - 2007: President, Joint Oceanographic Institutions (JOI), Washington, DC
- 1995 - 2000: Associate Chief Geologist for Science, U.S. Geological Survey, Reston, VA (acting 1995-1996)
- 1991 - 1996: Program Manager, Deep Continental Studies Program, U.S. Geological Survey, Menlo Park, CA
- 1989 - 1995: Consulting Professor, Stanford University, Stanford, CA
- 1988 - 1995: Research Geologist, U.S. Geological Survey, Menlo Park, CA
- 1985 - 1988: Associate Professor (tenured), Department of Earth and Space Sciences, State University of New York - Stony Brook, Stony Brook, NY
- 1982 - 1985: Assistant Professor, Department of Earth and Space Sciences, State University of New York - Stony Brook, Stony Brook, NY
- 1979 - 1982: Postdoctoral Research Fellow, Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA
- Ph.D., The University of Michigan, 1979
Professional Affiliations
- American Association for the Advancement of Science
- American Geophysical Union
- Geological Society of America (Elected Fellow, 1997)
- Mineralogical Society of America (Elected Fellow, 1993)
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