The central theme of my work involves investigation the fluxes of fluids and gases through continental margins. Over the past decade my primary focus has been gas hydrate research on the Blake Ridge gas hydrate field on the continental rise off of southeastern North America. This work culminated in ODP Leg 164, which was the first dedicated academic drilling for gas hydrate research. Assessing the global distribution of gas hydrate and interstitial gas is a continuing interest. I am also particularly interested in developing new techniques to detect the presence of gas hydrate in marine sediments.

My other ongoing work is focused on the geology associated with sea floor seepage sites. This included investigating the deposits associated with chemosynthetic communities, determining the processes that occur at the methane-sulfate boundary, and understanding the origin of pockmarks and other potential seafloor fluid venting sites.

Selected Publications