Aqueous trace metal geochemistry in contaminated systems such as acid rock drainage, urban areas of the Great Lakes, vadose zone subsurface environments associated with bomb test sites in the US
Microbial -geochemical linkages involved in key aqueous geochemical processes such as mineral precipitation and dissolution, degradation, sequestration or mobilization of contaminants, fossilization, and weathering,
Development and application of molecular based tools for characterization of microbial activity in the environment
