Biogeochemical drivers of uranium isotope fractionation in regolith and groundwater

The aim of this project is to understand better the fractionation of uranium isotopes in regolith and groundwater environments. Uranium-series isotopes are potentially powerful in deciphering groundwater dynamics, weathering processes and timeframes, but their ratios can be affected by water-rock interaction and microbial activity. A better understanding of the effects will allow us to fingerprint groundwater sources, impacts of human activity on water resources and provide ages of groundwater and weathering.