Geochemistry of Thermal Groundwaters at Shentanggou, Taiyuan, China

摘要

Thermal groundwaters at Shentang are karst water in middle Ordovician carbonate rocks with temperatures of 43—45℃. The geology, hydrogeology and hydrogeochemistry of thermal groundwaters were studies at Shentanggou. The hydrochemical type of the thermal groundwaters is SO_4-Ca·Mg with many kinds of gases such as H_2S. The genesis of thermal groundwaters is meteoric, and the thermal groundwaters are formed by the air rainfall moving deeply through the faults and fractures, belonging middle-low temperature convective hydrothermal system.