people:
Chris ReinhardAssistant Professor of Biogeochemistry
School of Earth & Atmospheric Sciences Georgia Institute of Technology Google Scholar My background is originally in evolutionary biology, but my past and current research is probably best characterized as falling under the labels of astrobiology, geobiology, and Earth system evolution — I am fascinated and astonished by the observation that our planet has come to support a pervasive biosphere, and seek to reconstruct both how we got here and what this history has to teach us about the search for life beyond Earth. This involves combining techniques from aqueous geochemistry, geology, and biogeochemical modeling in an effort to reconstruct Earth surface environments as they have changed over long timescales through Earth's deep history, how this evolution has been coupled with the evolution of microbial and macroscopic life, and how this knowledge can be generalized or rescaled for application to other planetary environments. Kazumi OzakiNASA Postdoctoral Fellow
School of Earth & Atmospheric Sciences Georgia Institute of Technology I am broadly interested in trying to mechanistically understand the chemical evolution of Earth's ocean-atmosphere system using quantitative theoretical models. My work at Georgia Tech focuses on linking ocean nutrient biogeochemistry to the cycling of atmospheric gases relevant for climate stability and remote biosignature detection, modeling the effects of competitive ecophysiology within early photosynthetic ecosystems on Earth's oxygen cycle, and better understanding the photochemical stability of low-oxygen atmospheres. Kyle RybackiPostdoctoral Fellow
School of Earth & Atmospheric Sciences Georgia Institute of Technology I am interested in tracing the chemical evolution of Earth's ocean-atmosphere system using a range of trace element and stable isotopic tracers. I am also broadly interested in carbonate geochemical archives, cave geology, and hydrogeology. My work at Georgia Tech focuses on refining stable isotopic tracers of Earth's oxygen cycle, in particular stable chromium (Cr), molybdenum (Mo), and thallium (Tl) isotopes, and developing new sedimentary archives for their application in deep time. Ashley BradyPhD student (co-advised with Dr. Yuanzhi Tang)
School of Earth & Atmospheric Sciences Georgia Institute of Technology Ashley is working on experimental approaches toward better understanding the stable chromium (Cr) isotope system in low-temperature environments, with a particular focus on fractionations attendant to Cr incorporation during precipitation and aging of carbonate phases and the potential role of reactive oxygen species in generating significant Cr isotope fractionation. Luis CortésUndergraduate student
School of Mechanical Engineering Georgia Institute of Technology Luis is working on database approaches toward better understanding the oxygen fugacity of Earth's mantle, the chemical evolution of the upper crust, and the role of mantle/crust evolution on structuring the chemistry of Earth's atmosphere. |
|
lab alumni:
|
Rich Gaschnig
Former Postdoctoral Fellow Project: Mo and U isotopes in igneous rocks as tracers of deep sea redox and mantle recycling Now on the faculty at University of Massachusetts, Lowell / website / Josh Stanford
Former Master's Student Project: Using Mo isotopes to fingerprint Paleoproterozoic oxygen oases Now pursuing K-12 education in the great state of California |
