Chris ReinhardAssistant Professor of Biogeochemistry
School of Earth & Atmospheric Sciences Georgia Institute of Technology Google Scholar GitHub CV My past and current research is probably best characterized as falling under the labels of Earth system evolution, geobiology, and astrobiology. In practice, this involves combining techniques and theory from geology, oceanography, biogeochemistry, and planetary science in an effort to understand how Earth surface environments have changed through time, how this evolution has been coupled with the evolution of the biosphere, and how this knowledge can be generalized for application to other planetary environments. Devon Cole
Postdoctoral Researcher
School of Earth & Atmospheric Sciences Georgia Institute of Technology | website | Devon works at the intersection of field geology, tracer application, and biogeochemical modeling with the goal of reconstructing the evolution of Earth's oxygen cycle and understanding the factors that control the scope of biospheres on habitable Earth-like planets. Her current work at Georgia Tech involves ocean model inversions of global productivity in Earth's deep past, tracking the links between Earth's evolving oxygen cycle and major events in biological evolution, and modeling the biogeochemical leverage of photosynthesis around dim stars Dragos ZaharescuPostdoctoral Researcher
School of Earth & Atmospheric Sciences Georgia Institute of Technology | website | Dragos is interested in fundamental questions linking biology, geology, and planetary evolution across scales. His work at Georgia Tech involves innovative experimental approaches toward understanding the role of primitive microbial life on the geochemistry of weathering under anoxic atmospheres, hosted at the Biosphere 2 facility. Nadia SzeinbaumNASA Postdoctoral Program Fellow [co-advised with Dr. Jennifer Glass]
School of Earth & Atmospheric Sciences Georgia Institute of Technology | website | Nadia is broadly interested in the microbial ecophysiology of anaerobic carbon and manganese cycling in both modern and ancient environments, with diverse applications spanning biotechnology, the elucidation of modern microbial diversity, understanding planetary evolution, and searching for life beyond Earth. Under the auspices of a NASA Postdoctoral Program Fellowship, Nadia is currently focused on the role of microbial interaction in the oxygenation of Earth's ocean-atmosphere system. Zijian LiPhD student
School of Earth & Atmospheric Sciences Georgia Institute of Technology Zijian is working to develop and apply the stable thallium (Tl) isotope tracer, with a particular focus on constraining ocean oxygenation during the Paleoproterozoic, understanding the effects of burial alteration on Tl isotope signatures in sedimentary rocks, and the behavior of Tl in modern reducing sedimentary environments. Pengxiao XuPhD student
School of Earth & Atmospheric Sciences Georgia Institute of Technology Pengxiao is using thermodynamic models to explore the role of hydrothermal systems in controlling oxygen and nutrient cycling on ocean worlds, and is interested in refining stable chromium (Cr) isotopes and cerium (Ce) systematics as proxies for ocean-atmosphere oxygenation through Earth's history. Camilla LiuPURA Undergraduate Researcher
School of Earth and Atmospheric Sciences Georgia Institute of Technology Camilla is using the cGENIE Earth system model to explore the interaction of ocean nutrient levels atmospheric oxygen in controlling the ecological landscape faced by the earliest eukaryotic and animal life. |
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lab alumni:
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Luis Cortés
Rutt Bridges Undergraduate Scholar Project: Trace element proxies of mantle redox on Earth through time Currently a Field Engineer for Schlumberger | website | Ashley Brady
MS Student Project: Cr isotope effects during precipitation of carbonate mineral phases Currently STEM Resident at the Gwinnett School of Mathematics, Science, and Technology (GSMST) | website | Kazumi Ozaki
NASA Postdoctoral Program Fellow Project: Modeling the effects of different forms of photosynthesis on the stability of planetary climate and the redox state of Earth's early atmosphere. Now a faculty member at Toho University | website | Chloe Stanton
Rutt Bridges Undergraduate Scholar (co-advised with Dr. Jennifer Glass) Project: Reconstructing the Proterozoic nitrous oxide cycle by combining experimental kinetics and atmospheric photochemistry. Now a Ph.D. student in the Department of Geosciences at Penn State | website | Kyle Rybacki
Postdoctoral Researcher Project: Stable chromium (Cr) and thallium (Tl) isotopes in Pleistocene carbonate sediments and Archean sedimentary rocks as tracers of ocean-atmosphere oxygen levels. Now at the Bureau of Land Management, Carlsbad, NM | website | Rich Gaschnig
Postdoctoral Researcher 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
MS Student Project: Using Mo isotopes to fingerprint Paleoproterozoic oxygen oases Currently an Environmental Specialist for the Southern California Gas Company | website | |