I am a marine geologist and geochemical stratigrapher
who moved from a professorship in the Geology Department at UNC-Chapel Hill to become a
research scientist at MBARI in January 1999.
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
determining the processes that occur at the methane-sulfate boundary, and understanding
the origin of pockmarks and other potential seafloor fluid venting sites.