湘东南永兴地区上地壳电性结构及其地质意义

李佳奇; 彭荣华; 胡祥云; 赵军

doi:10.3799/dqkx.2021.231

Volume 48 Issue 10

Oct. 2023

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Article Navigation > Earth Science > 2023 > 48(10): 3932-3945

Li Jiaqi, Peng Ronghua, Hu Xiangyun, Zhao Jun, 2023. Electrical Structure of Upper Crust in Yongxing Region, Southeast Hunan Province. Earth Science, 48(10): 3932-3945. doi: 10.3799/dqkx.2021.231

Citation:

Li Jiaqi, Peng Ronghua, Hu Xiangyun, Zhao Jun, 2023. Electrical Structure of Upper Crust in Yongxing Region, Southeast Hunan Province. Earth Science, 48(10): 3932-3945. doi: 10.3799/dqkx.2021.231

Li Jiaqi, Peng Ronghua, Hu Xiangyun, Zhao Jun, 2023. Electrical Structure of Upper Crust in Yongxing Region, Southeast Hunan Province. Earth Science, 48(10): 3932-3945. doi: 10.3799/dqkx.2021.231

Citation:

Li Jiaqi, Peng Ronghua, Hu Xiangyun, Zhao Jun, 2023. Electrical Structure of Upper Crust in Yongxing Region, Southeast Hunan Province. Earth Science, 48(10): 3932-3945. doi: 10.3799/dqkx.2021.231

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Electrical Structure of Upper Crust in Yongxing Region, Southeast Hunan Province

doi: 10.3799/dqkx.2021.231

Li Jiaqi^{1, 2
,
,},
Peng Ronghua^{2
,
,},
Hu Xiangyun²,
Zhao Jun³

1.
Chengdu Surveying Geotechnical Research Institute Co., Ltd. of MCC, Chengdu 610023, China
2.
Institute of Geophysics & Geomatics, China University of Geosciences, Wuhan 430074, China
3.
SINOPEC Geophysical Research Institute, Nanjing 211103, China

Received Date: 2021-09-18
Available Online: 2023-10-31
Publish Date: 2023-10-25

Abstract

Abstract

In order to understand the characteristics of the geological structure in the Yongxing region and delineate potential prospecting targets, it investigated the electrical structures of the upper crust in this region using magnetotelluric (MT) data. The electrical resistivity model was obtained by 2D nonlinear conjugate gradient inversion of MT data from five profiles deployed in the Yongxing region of Chenzhou District, Southeast Hunan Province. The results show that the electrical structures are laterally heterogeneous and reveal a subvertical moderate resistivity zone. Combined with the regional geological data of Southeast Hunan, the subvertical resistivity zone is interpreted as the manifestation of the Chaling-Chenzhou fault zone, which controls the geological structure and upwelling channel of ore-forming fluids in the study area. Finally, following structural characteristics of lead-zinc metal deposits in the Nanling metallogenic belt, it discusses the relationship between the metallogenic mechanism and the electrical structures for two existing lead-zinc deposits in the study area.
- magnetotellurics,
- Yongxing area,
- Southeast Hunan Province,
- electrical structure of the upper crust,
- mineralization,
- lead-zinc ores,
- geophysics

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References(50)

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Electrical Structure of Upper Crust in Yongxing Region, Southeast Hunan Province

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