My research centers on development and application of noble gas geochemistry techniques to a diverse range of terrestrial and solar system questions. Specific focus areas include geochronology and thermochronometry using the (U-Th)/He system, surface exposure dating with cosmogenic isotopes, evolution of Earth’s mantle and atmosphere from analysis of volatiles in rocks, and identification of major events in the history of the solar system (asteroid collisions, comet showers) by geochemical tracing of cosmic dust in sediments.

Awards and Achievements

  • National Academy of Science