My graduate studies focus on the application of light stable isotope systems to trace the origin and interaction of subsurface waters and hydrocarbons. I also have a hand in instrument development and Earth history research at MIT.
Clumped isotope effects during OH and Cl oxidation of methane.
2016 // Geochimica et Cosmochimica Acta, in press.
Fractionation of the methane isotopologues 13CH4, 12CH3D, and 13CH3D during aerobic oxidation of methane by Methylococcus capsulatus (Bath).
2016 // Geochimica et Cosmochimica Acta, 192, 186–202.
IODP Expedition 337: Deep Coalbed Biosphere off Shimokita — Microbial processes and hydrocarbon system associated with deeply buried coalbed in the ocean.
2016 // Scientific Drilling, 21, 17–28.
Rapid oxygenation of Earth's atmosphere 2.33 billion years ago.
2016 // Science Advances, 2, e1600134.
Exploring deep microbial life in coal-bearing sediment down to ~2.5 km below the ocean floor.
2015 // Science, 349, 420–424.
Nonequilibrium clumped isotope signals in microbial methane.
2015 // Science, 348, 428–431.
Measurement of a doubly-substituted methane isotopologue, 13CH3D, by tunable infrared laser direct absorption spectroscopy.
2014 // Analytical Chemistry, 86, 6487–6494.
Fractionation of sulfur isotopes by Desulfovibrio vulgaris mutants lacking hydrogenases or type I tetraheme cytochrome c3.
2013 // Frontiers in Microbiology, 4, 171.
Some talks & posters delivered at national or regional conferences.
Clumped isotopologue constraints on the origin of methane in basalt- and ultramafic-hosted mid-ocean ridge hydrothermal fluids.
2016 // Goldschmidt Conference, Yokohama, Japan.
Application of methane clumped isotopologue measurements for tracing the subsurface history of hydrocarbon gases.
2015 // Geological Society of America Annual Meeting, Baltimore, MD.
Clumped isotopic (13CH3D) composition of methane from the Potato Hills gas field, Oklahoma.
2014 // Goldschmidt Conference, Sacramento, CA.
Sulfur isotope fractionation during reduction of sulfate by Desulfovibrio fructosovorans.
2014 // Northeastern Geobiology Symposium, Yale University.
Stable isotope fractionation during chromium(III) oxidation by δ-MnO2.
2010 // AGU Fall Meeting, San Francisco, CA.
12.104 (MIT) - Fall 2014 - Geochemistry of the Earth and Planets - TA