Research Interests
Global Budgets/Recycling of Si, N, C, P
Calcium Carbonate Dissolution--through the water column and into the sediment column
Tracers--Use of Rn and Rn to determine ocean mixing and sediment/pore water mixing
In Situ Technologies--Use of benthic chambers to determine sediment-water fluxes
PaleoProxies--which ones work and how diagenesis can muck them up
GeoBiology--Layered Microbial Communities, Sediment bacteria, how they organize and respond to environmental forcing
Particles in the Ocean--transformations as particles leave the surface ocean and fall to the sea floor
Experience
1996-present Research Associate Professor, University of Southern California
1988-1995 Research Assistant Professor, University of Southern California
1985-1988 Research Associate of Geochemistry (Post-doc), U.S.C.
Education
Ph. D. Geological Sciences (Geochemistry), Studies of water column mixing and benthic exchange of nutrients, carbon and radon in the southern California borderland. Ph.D. Dissertation, University of Southern California, 219 pp. 1985.
M.S. Geological Sciences (Sedimentology), Barrier island evolution and its effect on lagoonal sedimentation; Shackleford Banks, Back Sound, and Harkers Island: Cape Lookout National Seashore. M.S. Thesis, Duke University, 227 pp. 1979.
B.A. Geological Sciences, June, 1977, Cum Laude, University of Rochester, Rochester, N.Y.
Classes taught
Honors & Awards
American Geophysical Union
Geochemical Society
American Society of Limnologists and Oceanographers
The Oceanography Society
Associate Editor (Reviews of Geophysics)
Chemical Oceanography NSF Panelist
US-JGOFS Steering Committee Member (elected to second term)
Invited speaker at Gordon Conference of Chemical Oceanography
Member OCTET planning group, RioMar Workshop, Various US-JGOFS SMP workshops
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