This project seeks to use isotopic tracers to understand the reactivity and fate of CO2 in the subsurface. Research includes the investigation of natural analogues for CO2sequestration, including the Red Mountain Mining District, Livermore, CA and saline aquifers throughout the U.S. that have been naturally or intensionally exposed to elevated levels of CO2. Laboratory investigations will explore how the kinetics of isotope exchange reactions can be used to better understand reaction rates. (Maher, Bird,Brown).
Research in this area is focused on coupling low-temperature dating techniques such as U/Pb or 230-Th/U using the multi-collector ICP-MS and the SHRIMP-RG with the development and refinement of new paleoclimate proxies, such as U isotopes, that are sensitive to past moisture levels (Maher).