Analysis of the Hydro-geochemical and Isotope Characteristics in Bangnazhang-huangcaoba Hot Spring

Based on the analysis of Hydro-geochemical and environment isotope characteristics of Bangnazhang-huangcao dam hot spring in Yun nan province, the author think that the hot springs has the same regularity in the region, the hot springs are completely different from cold springs and surface water. At the same time, the Hydro-geochemical and environment isotope characteristics are different shows that the hot springs are relatively independent water circulation characteristics. Through the δD-δ18O relation and gas composition analysis of hot springs, point out the supply source of hot springs came from atmospheric precipitation. Through the TDS major ion content, the relationship between δD-TDS and δ18O-TDS, which shows that the increase of salt in hot springs is mainly the result from water-rock interaction.