Education
Ph.D. in Chemical Oceanography, 1990, Massachusetts Institute of Technology/Woods Hole Oceanographic Institution Joint Program in Oceanography, USA
A.B. in Chemistry, magna cum laude, 1985, Princeton University, USA
Research
My research focuses on ways that environmental changes are recorded on the earth’s surface. Much of my work uses changes in the inorganic composition of lake sediments as archives of changes in hydroclimate, lake productivity, or sediment provenance. One of the tools I use is XRF core scanning, which provides rapid and non-destructive analyses of a suite of major elemental concentrations at sub-millimeter resolution. Another area of focus has been the use of cosmogenic nuclides (produced by cosmic ray interaction with surface rocks and minerals) to evaluate histories of glaciation, tectonic activity, erosion, and landscape evolution.