Geochemistry of thermal fluids and the genesis of granite-hosted Huangshadong geothermal system, Southeast China
文献类型：期刊论文
| 作者 | Tian, Jiao1,2; Stefansson, Andri3; Li, Yiman2,4; Li, Liwu5; Xing, Lantian5; Li, Zhongping5; Li, Ying1; Zhou, Xiaocheng1 |
| 刊名 | GEOTHERMICS
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 109页码:12 |
| ISSN号 | 0375-6505 |
| 关键词 | Geothermal system Thermal water Isotope Granite Mixing model |
| DOI | 10.1016/j.geothermics.2023.102647 |
| 英文摘要 | The geochemistry of the thermal waters in the granite-hosted Huangshadong geothermal system was studied to characterize the hydrogeology of the system and potential geothermal energy prospects. In recent years, interest in geothermal energy utilization as an alternative and non-fossil fuel energy source has grown in China. The thermal waters have temperatures of 48-99 degrees C at the surface and are classified as of HCO3-Na type with low total dissolved solids (TDS) content (192-727 mg/L) and neutral pH (7.12-8.15). Based on the isotope (delta 2H, delta 18O, 87Sr/86Sr) and chemical (Li, Cl, and Sr) compositions, the thermal waters were sourced from local meteoric water, followed by water-rock interaction with the granite host rocks and mixing with non-thermal water upon water ascent to the surface. Applying geothermometry and mixing models, the chemical composition (SiO2, B, Li, Na, K, Rb, Ca, Mg, Sr, Al, F, Cl, Br, HCO3, and SO4) of deep thermal water was assessed and the reservoir temperature was predicted as approximately 150-165 degrees C. The corresponding thermal water elemental compo-sition was in equilibrium with common secondary minerals. Based on noble gas isotope systematics (3He, 4He, and 20Ne), He is a crustal source (>95%) being accompanied by radiogenic heat, which is presumably the principal source of induced heat observed in the geothermal systems. Other volatiles (CO2, N2, and Ar) were also of crustal and/or atmospheric origin. Based on chemical and isotopic systematics, it was concluded that the Huangshadong geothermal field is a medium-enthalpy geothermal system with thermal water circulated to a depth of approximately 3.5 km, corresponding to a power density of 4.4 MW/km2. Such geothermal systems are potentially suitable for deep drilling (>2-3 km), followed by energy production and the direct use of thermal water. These findings reveal the genesis mechanism of hydrothermal systems in the granite-hosted area of Southeast China and indicate that high-enthalpy geothermal fluids can hardly be expected within a drilling depth of 4 km. |
| WOS关键词 | GUANGDONG PROVINCE ; HEAT-FLOW ; NATURAL-WATERS ; BASIN ; TEMPERATURE ; HUIZHOU ; EQUILIBRIA ; SUBDUCTION ; TECTONICS ; EVOLUTION |
| 资助项目 | National Key R&D Program of China[2019YFC0604901] ; National Natural Science Foundation of China[41902252] ; National Natural Science Foundation of China[41673106] ; UNESCO in Iceland |
| WOS研究方向 | Energy & Fuels ; Geology |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000923878100001 |
| 资助机构 | National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; UNESCO in Iceland ; UNESCO in Iceland ; UNESCO in Iceland ; UNESCO in Iceland ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; UNESCO in Iceland ; UNESCO in Iceland ; UNESCO in Iceland ; UNESCO in Iceland ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; UNESCO in Iceland ; UNESCO in Iceland ; UNESCO in Iceland ; UNESCO in Iceland ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; UNESCO in Iceland ; UNESCO in Iceland ; UNESCO in Iceland ; UNESCO in Iceland |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/106822]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Zhou, Xiaocheng |
| 作者单位 | 1.China Earthquake Adm, Inst Earthquake Forecasting, Beijing 100036, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Iceland, Inst Earth Sci, Sturlugata 7, IS-101 Reykjavik, Iceland 4.Univ Chinese Acad Sci, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources Res, Lanzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Jiao,Stefansson, Andri,Li, Yiman,et al. Geochemistry of thermal fluids and the genesis of granite-hosted Huangshadong geothermal system, Southeast China[J]. GEOTHERMICS,2023,109:12. |
| APA | Tian, Jiao.,Stefansson, Andri.,Li, Yiman.,Li, Liwu.,Xing, Lantian.,...&Zhou, Xiaocheng.(2023).Geochemistry of thermal fluids and the genesis of granite-hosted Huangshadong geothermal system, Southeast China.GEOTHERMICS,109,12. |
| MLA | Tian, Jiao,et al."Geochemistry of thermal fluids and the genesis of granite-hosted Huangshadong geothermal system, Southeast China".GEOTHERMICS 109(2023):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
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