Sources of Geothermal Water in Jiangxi Province, SE-China: Evidences from Hydrochemistry and Isotopic Composition
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- 作者：Jiale Li ; Bai Gao ; Yihui Dong ; Gongxin Chen ; Zhanxue Sun ; zhxsun@ecit.cn
- 关键词：geothermal water ; Jiangxi Province ; hydrochemistry ; isotopic characteristics
- 刊名：Procedia Earth and Planetary Science
- 出版年：2017
- 出版时间：2017
- 年：2017
- 卷：17
- 期：Complete
- 页码：837-840
- 全文大小：278 K
- 卷排序：17
文摘
Jiangxi Province is one of the regions where geothermal water is widely distributed in China, with discovered 96 hot springs and over 30 thermal water boreholes. Eleven geothermal water samples were collected and analyzed for hydrochemical and isotopic characteristics to distinguish the sources of geothermal water in Jiangxi Province, SE-China. Results showed that water temperatures varied from 32.0 to 80.8 °C with an average of 53.4 °C and the dominated compositions are Na-HCO3 type. The hydrogeochemical characteristics as well as isotopic compositions suggest the meteoric origin of geothermal water with recharge altitudes in the range of 400-995 m. Mixing with cold groundwater influences the hydrochemistry of geothermal water. This study furthers the understanding of sources of geothermal water and provides a theoretical basis for better exploitation of geothermal water in the province.