Dr. Moreau uses multi-disciplinary approaches and tools to investigate how molecular scale interactions among the geosphere, hydrosphere and biosphere impact the chemistry of natural waters at global scales. These impacts include microbial generation of acid from natural and mining-derived metal-sulfide minerals (e.g., pyrite, arsenopyrite), using natural bacteria to remediate or immobilize mining and industrial contaminants in groundwater, microbially-controlled mineral weathering and hillslope evolution, deep seafloor biogeochemical processes that control the rheology of seafloor sediments and open ocean biogeochemical processes that control the fate of toxic metals in the marine food web.The overarching theme that connects Dr. Moreau's research is the ability of microbes to adapt to and dramatically influence the structure and chemistry of the planet, and by implication, how the Earth's geologic history both affects and reflects these processes.
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