Igneous Petrology
Geography-Geology Building, Room hydrolab

Current Research Interests

I am primarily interested in understanding how the earth and the planets have become chemically differentiated over time into crusts, mantle and core.   My current work involves studying mantle lithosphere in the form of xenoliths brought to the surface by explosive volcanoes.  These xenoliths are samples of mantle lithosphere ranging in age from Archean (>2500 million years old) to Recent, and in principle can yield information on the mechanisms responsible for earth differentiation as a function of time.  More recently I’ve become interested in planetary geology including the origin of impact glasses (“georgiaites”) found in east-central Georgia, and in the implications of apatite compositions for the fugacities of water, chlorine and fluorine in planetary interiors.

Curriculum Vitae: