Selenium Sorption to Carbonate Minerals and Calcareous Soils Under Elevated pCO2.

Selenium is a minor component of highly weatherable rock formations in the Uintah Basin Utah. Activities such as soil/gas extraction and irrigated agriculture may be accelerating the mobilization of Se in the soils, which eventually reach the Pariette Wetlands. Since the wetlands are a stopping point for migratory water fowl, the elevated levels of Se detected in the sediments and waters is of concern. To investigate the role of carbonate minerals in the transport of Se we conducted batch sorption experiments at elevated pCO2 on carbonate minerals and calcareous soils from Utah.