Research Associates

Research Associates

Ian MacGregor
Research Associate
Ph.D., Princeton University (1964)

Now retired having worked as Professor in Geology Department, UC Davis and Division Director, Earth Sciences, National Science Foundation.  Research interests focus on understanding mineralogy, petrology and geochemistry of upper mantle using field and experimental approaches.  Current research includes development of geothermometers and geobarometers for mantle samples in the spinel peridotite stability field.   Now work in science education as science consultant to National Science Resources Center, Smithsonian Institution on development of K -12 science curricula.

Roy J. Shlemon
Research Associate; Senior Fellow of Mathematical and Physical Sciences
Ph.D., University of California, Berkeley (1967) 

Applications of Quaternary geology, geomorphology and soil stratigraphy to engineering practice. Fault-activity assessments (paleoseismicity/neotectonics); natural and anthropic influences on slope stability; paleochannels and contaminant pathways. Also involved in forensic geology as a Consultant, Expert Witness, Neutral Referee and Mediator. Provide and interpret geoscience information for government agencies, attorneys, private engineering and environmental firms, land conservation and development organizations. GEL 136: Ecogeomorphology of Rivers and Streams

Robert A. Wiebe
Research Associate
Ph.D. Stanford University (1966) 

Igneous petrology. Research focuses on the growth of granitic, mafic and composite intrusive bodies with an emphasis on understanding the plutonic record of magma chamber processes including interactions between coexisting mafic and granitic magmas. Recent projects include studies in coastal Maine, the Sierra Nevada, and the Lachlan Fold Belt in Australia.