Geologic development of continental margins and the study of sediments and sedimentary processes in marine and coastal systems. Recent interests focus on high-resolution records of extreme events in coastal and marine deposits, including high-resolution geochronology of natural and anthropogenic impacts.
Research funding totaling over $5,000,000 over the past 10 years from NSF, USGS, Gulf of Mexico research Initiative (GoMRI) and a variety of other federal, state and local governmental agencies as well as private foundations. Actively supports 10-20 students/year on grant funded projects.
>60 publications in the peer-reviewed literature.
Served as Editor on a Special Publication in Marine Geology, Neogene Geology of a linked coastal/inner shelf system: west-central Florida (2003). Served as Sedimentologist on ODP Leg 182, Great Australian Bight (1998).
Supervises labs for analysis of sediment texture and composition, and sediment geochronology (over past 100 years) using short-lived radioisotopes (Pb-210, Cs-137, Be-7, Th-234).