Hydrogeochemical Characteristics and Genesis of Geothermal Water from the Ganzi Geothermal Field, Eastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Fan, Yifan1,2,3; Pang, Zhonghe1,2,3; Liao, Dawei1,2,3; Tian, Jiao1,2,3; Hao, Yinlei1,2,3; Huang, Tianming1,2,3 ; Li, Yiman1,2,3
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| 刊名 | WATER
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| 出版日期 | 2019-08-01 |
| 卷号 | 11期号:8页码:28 |
| 关键词 | high-temperature geothermal system hydrogeochemistry geothermal gas heat source chemical geothermometry |
| DOI | 10.3390/w11081631 |
| 英文摘要 | The Ganzi geothermal field, located in the eastern sector of the Himalayan geothermal belt, is full of high-temperature surface manifestations. However, the geothermal potential has not been assessed so far. The hydrochemical and gas isotopic characteristics have been investigated in this study to determine the geochemical processes involved in the formation of the geothermal water. On the basis of delta O-18 and delta D values, the geothermal waters originate from snow and glacier melt water. The water chemistry type is dominated by HCO3-Na, which is mainly derived from water-CO2-silicate interactions, as also indicated by the Sr-87/Sr-86 ratios (0.714098-0.716888). Based on Cl-enthalpy mixing model, the chloride concentration of the deep geothermal fluid is 37 mg/L, which is lower than that of the existing magmatic heat source area. The estimated reservoir temperature ranges from 180-210 degrees C. Carbon isotope data demonstrate that the CO2 mainly originates from marine limestone metamorphism, with a fraction of 74-86%. The helium isotope ratio is 0.17-0.39 Ra, indicating that the He mainly comes from atmospheric and crustal sources, and no more than 5% comes from a mantle source. According to this evidence, we propose that there is no magmatic heat source below the Ganzi geothermal field, making it a distinctive type of high-temperature geothermal system on the Tibetan Plateau. |
| WOS关键词 | TAUPO VOLCANIC ZONE ; STRONTIUM ISOTOPE ; THERMAL WATERS ; FLUID GEOCHEMISTRY ; GUIZHOU PROVINCE ; SICHUAN BASIN ; DELTA-D ; EVOLUTION ; TEMPERATURE ; ORIGIN |
| 资助项目 | National Natural Science Foundation of China[41430319] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000484561500105 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation 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 ; National Natural Science Foundation 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 ; National Natural Science Foundation 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 ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/93583]  |
| 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 | Pang, Zhonghe |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Yifan,Pang, Zhonghe,Liao, Dawei,et al. Hydrogeochemical Characteristics and Genesis of Geothermal Water from the Ganzi Geothermal Field, Eastern Tibetan Plateau[J]. WATER,2019,11(8):28. |
| APA | Fan, Yifan.,Pang, Zhonghe.,Liao, Dawei.,Tian, Jiao.,Hao, Yinlei.,...&Li, Yiman.(2019).Hydrogeochemical Characteristics and Genesis of Geothermal Water from the Ganzi Geothermal Field, Eastern Tibetan Plateau.WATER,11(8),28. |
| MLA | Fan, Yifan,et al."Hydrogeochemical Characteristics and Genesis of Geothermal Water from the Ganzi Geothermal Field, Eastern Tibetan Plateau".WATER 11.8(2019):28. |
入库方式： OAI收割
来源：地质与地球物理研究所
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