Contact Information

Office: 3406 IGB
Phone: +


Some of my latest research interests include determination of how organic macromolecules produced by bacteria and corals affect the precipitation of carbonate biominerals during rapid environmental changes in temperature and oxygen concentration. The natural laboratories for this work are travertine hot springs in Yellowstone and coral reef ecosystems of the Netherlands Antilles. Results are providing fundamental new knowledge of the extent to which feedbacks between minerals, metazoans (coral) and thermophilic bacteria control the carbonate biomineralization process. This in turn will permit us to establish more precise predictive models of how coral reef ecosystems will respond over the next 100 years to global warming, and improve our search for and interpretation of microbial life on the early earth and other planets.

Research Areas
Geomicrobiology, Geobiology & Paleobiology
Atmospheric Chemistry, Geochemistry & Earth Materials

Ph.D. SUNY at Stony Brook
M.Sc. Paleobiology, University of Chicago
M.Sc. Geology, University of Iowa

  • GEOL 117: Oceanography
  • GEOL 143: History of Life
  • CHP 395: Biocomplexity in Yellowstone
  • GEOL 440: Sedimentology and Stratigraphy
  • GEOL 415/515: Coral Reef Biocomplexity
  • GEOL 543: Carbonate Sedimentology and Diagenesis