Surface processes, particularly the sedimentology and hydrology of macrotidal estuarine systems and, more recently, stream systems of the flood- and impairment-prone west-central PA region.
Stratigraphy of marginal marine Carboniferous systems and cyclostratigraphy of tide-dominated Carboniferous and modern systems.
Courses taught: Geomorphology, Sedimentation and Stratigraphy, Hydrology, Introduction to Paleontology, and Environmental Geology.