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Aqueous Geochemistry

Andrew Jacobson's research in aqueous geochemistry focuses on understanding the cycling of elements and their isotopes at the Earth’s surface. Several projects examine mineral weathering and precipitation reactions that cycle carbon and other elements, link inorganic and organic aspects of the Earth system, and control the geochemistry of soils, rivers, aquifers, seawater, and the atmosphere. Current field areas include Iceland, the New Zealand Southern Alps, and the Yucatan Peninsula. For more information visit the Aqueous Geochemistry Lab page.

Neal Blair’s research focuses on the cycling of carbon across the Earth’s surface as reflected by particulate organic C pools in streams, rivers, reservoirs, and the ocean. Stable and radio-isotopic measurements, biomarker measurements, and vibrational (FTIR) spectroscopy are used to track organic C as it moves across land surfaces and the seafloor. This lateral portion of the C-cycle is especially sensitive to anthropogenic impacts such as via land use. Field areas have included the Pacific Rim (California, Oregon, New Zealand, Taiwan, Papua New Guinea), the Midwest, and the Amazon River.