Estimation of reservoir temperature and analysis of the mechanism of origin of a granite dome-controlled geothermal system in the western Wugongshan area, southeast China

The escalating issues of worldwide energy scarcity and environmental contamination have brought geothermal resources into the spotlight as a sustainable eco-friendly alternative. circum-Wugongshan belt has abundant at medium-low temperature, offering significant potential for development utilization. In this study, samples groundwater, cold spring water, surface water were collected from western Wugongshan area. Hydrochemical thermodynamic methods used to estimate reservoir temperature analyze its mechanism origin. results these analyses indicated that, in terms hydrochemical characteristics, most groundwater Na-HCO 3 Na-SO 4 , while Ca-HCO respectively. Quartz multicomponent geothermometers provided reliable estimations temperatures, ranging 64.8°C 93.4°C. circulation depth was found range 1729.3 m 2,292.5 m. A mixing model that shallow blended rate 62.1%–78.8%. δD δ 18 O values validated conclusion originates atmospheric precipitation, with recharge elevations varying between 503.1 1,375.6 Based on above analysis, conceptual is proposed illustrate genesis.