Geological characteristics of geothermal resources in Xiangquan Town, Hexian County, Anhui Province and its exploitation, utilization and protection

Xiangquan Town of Hexian County, Anhui Province is named for the fragrance of the spring water in its territory. The temperature of the spring water is 47～50 ℃,and the water is rich in minerals and trace elements such as sulfur and calcium. According to the geothermal geological survey, geophysical exploration, geochemical survey, water pumping test and geotechnical water sample analysis and testing carried out in this area, and on the basis of describing the geothermal geological background of Xiangquan in Hexian County, the heat storage, the amount of geothermal resources and the characteristics of hot water of the geothermal field in this area are evaluated. The results show that the Xiangquan Town geothermal field belongs to the fissure karst zonal heat reservoir, with the occurrence of middle and low temperature karst hot water. The hydrochemical type is SO₄-Ca·Mg and belongs to the fluorine and metasilicic acid therapy hot mineral water.According to the distribution characteristics of geothermal resources, characteristics of geothermal fluids and the development and utilization status of Xiangquan Town, a development and utilization scheme of heating, physiotherapy, greenhouse planting and aquaculture was put forward, and some protection suggestions were put forward to carry out dynamic monitoring of geothermal fluids, strengthen waste water discharge, development and utilization management in the study area.