Author(s): SU Cheng, LI Rong, WANG Xin, YANG Wei
Pages: 738-741
Year: 2016 Issue:  5
Journal: Resources Environment & Engineering
Keyword:  geothermal fluids; hydrochemical characteristics; hydrogen-oxygen isotopes;
Abstract: On the basis of summarizing the geological and geothermal background conditions of the geothermal field in Wuhan city,combining the laboratory test results,the authors analyzed the characteristics of the main chemical composi-tion of the geothermal fluids,and discussed its formation mechanism. Research results show that the geothermal fluid be-longs to the kind of neutral-alkaline hard water,the hydrogenchemical types is HCO3-Ca,and the hydrochemical composi-tion has no obvious difference between it and the groundwater in adjacent areas;and the isotopic characteristics of geo-thermal fluids are similar to that of atmospheric precipitation. This geothermal fluids is mainly formed by the deep circu-lation of meteoric water,and then mixed with the shallow groundwater.