气候变化领域集成服务门户(CCPortal): Three-dimensional audio magnetotelluric imaging of the Yangyi geothermal field in Tibet, China

CCPortal

DOI	10.1016/j.jappgeo.2023.104966
	Three-dimensional audio magnetotelluric imaging of the Yangyi geothermal field in Tibet, China
	Ren, Wangqi; Ren, Zhengyong; Xue, Guoqiang; Chen, Weiying; Zhao, Ping; Liu, Jianli
发表日期	2023
ISSN	0926-9851
EISSN	1879-1859
卷号	211
英文摘要	The Yangyi geothermal field in southern Tibet has enormous potential for geothermal energy development. It is the high-temperature geothermal field at the highest elevation in the world, and the second largest high-temperature geothermal field in China. The total planned installed capacity of the geothermal power station is 32 MW. At present, no detailed three-dimensional (3D) geophysical survey has been carried out in the Yangyi geothermal field, and in-depth research is urgently needed. The main goal of our geophysical exploration is to study the geothermal structure of this region. In this study, the audio magnetotelluric (AMT) data of 85 stations were collected in the Yangyi geothermal field. The average distance between the stations was about 500 m, and the dimensions of the exploration area were 6 x 7 km. First, we analyzed the magnetotelluric data using the phase tensor method to qualitatively estimate the dimensionality of the subsurface resistivity structure. Then, by performing 3D inversion of 85 AMT data with relatively high quality, the 3D resistivity model from the surface to a depth of 2 km was determined, the high-temperature hydrothermal system under the Yangyi geothermal field was displayed for the first time. In addition, the main characteristics of the geothermal system were identified, and the genetic mechanism of the geothermal system was discussed based on the geological information and borehole data.
关键词	Yangyi geothermal field AMT 3D inversion Conductivity structure
英文关键词	HYDROGEOCHEMISTRY; RESOURCES; INVERSION; SYSTEM
WOS研究方向	Geosciences, Multidisciplinary ; Mining & Mineral Processing
WOS记录号	WOS:000962756700001
来源期刊	JOURNAL OF APPLIED GEOPHYSICS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283088
作者单位	Central South University; Chinese Academy of Sciences; Institute of Geology & Geophysics, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS
推荐引用方式 GB/T 7714	Ren, Wangqi,Ren, Zhengyong,Xue, Guoqiang,et al. Three-dimensional audio magnetotelluric imaging of the Yangyi geothermal field in Tibet, China[J]. 中国科学院青藏高原研究所,2023,211.
APA	Ren, Wangqi,Ren, Zhengyong,Xue, Guoqiang,Chen, Weiying,Zhao, Ping,&Liu, Jianli.(2023).Three-dimensional audio magnetotelluric imaging of the Yangyi geothermal field in Tibet, China.JOURNAL OF APPLIED GEOPHYSICS,211.
MLA	Ren, Wangqi,et al."Three-dimensional audio magnetotelluric imaging of the Yangyi geothermal field in Tibet, China".JOURNAL OF APPLIED GEOPHYSICS 211(2023).