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  2. 地质与地球物理研究所
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  4. 深部资源勘探装备研发
Modeling the crustal electrical structure of the Zhangye Basin via three-dimensional inversion of magnetotelluric data - Implications for future geothermal development

文献类型：期刊论文

作者An, Zhiguo1,3,4; Zhang, You4; Dong, Yanhui2,3,4; Di, Qingyun1,3,4; Han, Ying4
刊名TECTONOPHYSICS
出版日期2022-11-05
卷号842页码:10
关键词Zhangye Basin Tibetan Plateau Crustal electrical structure Three-dimensional inversion Magnetotellurics Geothermal exploration
ISSN号0040-1951
DOI10.1016/j.tecto.2022.229590
英文摘要Because of its unique geographical location, the Tibetan Plateau has been widely studied in geological research. Several studies revealed the geological structure and evolutionary process of the lithosphere deep beneath the northeastern Tibetan Plateau; however, the deep structural characteristics of the Zhangye Basin, which is in the middle of the Hexi Corridor at the junction of the northeastern Tibetan Plateau and Alxa Block, have not been widely examined. To better understand the geodynamics of the Zhangye Basin, studies are needed to investigate the tectonic mechanism of the northeastern Tibetan Plateau. To determine its subsurface structure, 46 broadband magnetotelluric survey stations were deployed across the basin in 2020. The crustal electrical structure of the basin was modeled via three-dimensional nonlinear conjugate gradient inversion. The results of this inversion revealed a low-resistivity zone in the middle-lower crust of the basin, which was characterized as an intracrustal decollement, thus suggesting decoupling deformation of the crust interior. This conductive body may have formed during continuous growth of the Tibetan Plateau, which may have expanded northeastward below the Hexi Corridor and Helishan Fault. The latter may have partly underthrust southwestward in the lower part of the Hexi Corridor and Tibetan Plateau. These results regarding geothermal formation of the Zhangye Basin improve the understanding of its underground structure and may guide the future development of geothermal resources in this area.
WOS关键词NORTHEASTERN TIBETAN PLATEAU ; SEISMIC EVIDENCE ; NORTHERN MARGIN ; STRIKE-SLIP ; BENEATH ; GROWTH ; DEFORMATION ; QINGHAI ; OBLIQUE ; FLOW
资助项目Scientific Instrument Development Project of the Chinese Academy of Sciences ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; [ZDZBGCH2018006] ; [2021YFB3202104] ; [41974112] ; [2019QZKK0904]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000867646600002
出版者ELSEVIER
资助机构Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Scientific Instrument Development Project of the Chinese Academy of Sciences ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research
源URL[http://ir.iggcas.ac.cn/handle/132A11/107789]  
专题地质与地球物理研究所_深部资源勘探装备研发
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An, Zhiguo
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Engn Lab Deep Resources Equipment & Technol, 19 Beituchengxilu Rd, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, 19 Beituchengxilu Rd, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, 19 Beituchengxilu Rd, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 An, Zhiguo,Zhang, You,Dong, Yanhui,et al. Modeling the crustal electrical structure of the Zhangye Basin via three-dimensional inversion of magnetotelluric data - Implications for future geothermal development[J]. TECTONOPHYSICS,2022,842:10.
APA An, Zhiguo,Zhang, You,Dong, Yanhui,Di, Qingyun,&Han, Ying.(2022).Modeling the crustal electrical structure of the Zhangye Basin via three-dimensional inversion of magnetotelluric data - Implications for future geothermal development.TECTONOPHYSICS,842,10.
MLA An, Zhiguo,et al."Modeling the crustal electrical structure of the Zhangye Basin via three-dimensional inversion of magnetotelluric data - Implications for future geothermal development".TECTONOPHYSICS 842(2022):10.

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来源：地质与地球物理研究所

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