My research applies stable isotope geochemistry to understand environmental and paleoenvironmental change and its causes. Ongoing projects of current students include (1) The Neogene closing of the Central American Isthmus and its relation to climate change, circulation change, and the Caribbean extinction event (Kai Tao, Ph.D. candidate, John Robbins, Halbouty post-doc, and Aaron O'Dea, Smithsonian Tropical Research Institute; see AP video showing Kai and Ethan in Panama); (2) circulation changes in the epicontinental seas of Carboniferous North America during formation of Pangea and its role in Late Paleozoic Ice Age (funded by NSF; Ryan Flake, M.S., 2011, and Debbie Thomas, Brent Miller, Tom Olszewski, Anne Raymond, Tom Yancey); (3) The historic record of hypoxia off the Texas Coast through stable isotopic analyses of waters, mollusks, and foraminifera (Josiah Strauss, Ph.D., 2010; funded by Texas Advanced Research Program).
Stephanie Wood (B.S., 2011) and Jordan Noret (B.S., 2008) completed senior theses on late Paleozoic isotope stratigraphy and paleoclimates under the auspices of the Undergraduate Research Scholars program.
My students find jobs in all aspects of geosciences, including academia (Kobashi, Mii, Routh, Romanek, Strauss, Zhang), petroleum industry (Adlis, Beck, Coffman, Gentry, Katz, Sprague), environmental industry (Schlichenmeyer), and governmental and non-governmental agencies (Canova).
Publications with links to pdf reprints, abstracts, figures, and appendices )
Stable Isotope Geoscience Facility (three ThermoFinnigan/Scientific isotope ratio mass spectrometers (MAT253, MAT252, DeltaPlusXP) and several peripherals for carbonate, water, and organic matter analyses (Kiel IV, Gas Bench II, two EAs, TC/EA, GC-combustion)
Co-organizer (E.L. Grossman, M.M. Joachimski, and I. Montanez), Theme Session on Paleotemperature, Paleocirculation, and Chemistry of Carboniferous and Permian Oceans,XVII Intl. Congress on the Carboniferous and Permian, Perth, Australia (7/11)