Biography
B.S., Geology, Earlham College, Richmond, INM.S., Geological Sciences, Northwestern UniversityPh.D., Geological Sciences, Northwestern University
Professional interests:1. History of geology (particularly in Britain and Europe)2. High temperature and high pressure geochemistry of Earth and planetary materials3. Global climate and climate change
Degrees
B.A., Geology Earlham College 1974
M.S., Geological Science Northwestern University 1981
Ph.D., Geological Sciences Northwestern University 1986