My research interests span topics in structural geology, mineral physics, and solid earth geophysics with emphasis placed on the mechanical properties of Earth materials and the deformation mechanisms that govern rheology. Specific research topics have addressed the
plasticity, creep, and failure of minerals and rocks, examining the roles of crystalline defects, grain boundaries, interfaces, and fluids in determining macroscopic behavior. Taking an experimental approach, I have examined the effects of fluids, defect chemistry, and diffusional kinetics on mechanical behavior with current studies including the deformation of carbonates,
compactional creep of porous quartz aggregates, the role of crack healing in restrengthening rocks, and hydrolytic weakening of silicates.