Imaging the heat source of the Kangding high-temperature geothermal system on the Xianshuihe fault by magnetotelluric survey
文献类型:期刊论文
作者 | Cheng, Yuanzhi1,2; Pang, Zhonghe1,2,4; Kong, Yanlong1,2,4; Chen, Xiaobin3; Wang, Guangjie1,2,4 |
刊名 | GEOTHERMICS
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出版日期 | 2022-06-01 |
卷号 | 102页码:11 |
关键词 | Kangding geothermal system Magnetotelluric Resistivity structure Partial melt Heat source |
ISSN号 | 0375-6505 |
DOI | 10.1016/j.geothermics.2022.102386 |
英文摘要 | The Kangding geothermal field along the Xianshuihe fault is a typical high-temperature geothermal system with an enormous capacity for geothermal power generation. The Xianshuihe fault is a major active sinistral strike-slip fault in eastern Tibet Plateau, where the fault splits into three parallel branches near Kangding. We collected data from 17 magnetotelluric stations in the Kangding geothermal system. After data processing, the dimensionality of the subsurface structure was qualitatively estimated using the phase tensor. The electrical resistivity model inverted with ModEM shows the Kangding geothermal system from the surface to a depth of 20 km, which correlates closely with the near-surface geology. The synthetic tests confirmed that the main resistivity anomalies identified in the electrical resistivity model were robust. There are several significant low resistivity anomalies of less than 10 omega m beneath the Kangding geothermal system. The cap rock and liquid-dominated reservoir can be interpreted as shallow conductive zones. The conductors beneath the Kangding geothermal field at a depth of 10 km are interpreted as an underlying zone of partial melt, which provides fluids and heat for the geothermal system. The partial melt fractions are in the range of 4-19%, confirming that there is a magmatic heat source beneath the Kangding geothermal system. |
WOS关键词 | EASTERN TIBETAN PLATEAU ; CONTINENTAL-CRUST ; ACTIVE TECTONICS ; ZONE ; CHINA ; FIELD ; SICHUAN ; MODEL ; COLLISION ; INVERSION |
资助项目 | National Natural Science Foun-dation of China[42130809] ; National Natural Science Foun-dation of China[42004060] ; National Natural Science Foun-dation of China[41430319] |
WOS研究方向 | Energy & Fuels ; Geology |
语种 | 英语 |
WOS记录号 | WOS:000780991500002 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
资助机构 | National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China ; National Natural Science Foun-dation of China |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/105120] ![]() |
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.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Minist Emergency Management China, Natl Inst Nat Hazards, Beijing 100085, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Cheng, Yuanzhi,Pang, Zhonghe,Kong, Yanlong,et al. Imaging the heat source of the Kangding high-temperature geothermal system on the Xianshuihe fault by magnetotelluric survey[J]. GEOTHERMICS,2022,102:11. |
APA | Cheng, Yuanzhi,Pang, Zhonghe,Kong, Yanlong,Chen, Xiaobin,&Wang, Guangjie.(2022).Imaging the heat source of the Kangding high-temperature geothermal system on the Xianshuihe fault by magnetotelluric survey.GEOTHERMICS,102,11. |
MLA | Cheng, Yuanzhi,et al."Imaging the heat source of the Kangding high-temperature geothermal system on the Xianshuihe fault by magnetotelluric survey".GEOTHERMICS 102(2022):11. |
入库方式: OAI收割
来源:地质与地球物理研究所
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