Exploration and interpretation method of CSAMT for shallow structure in deep karst area—A case study of Xiebiwan Village—Shangjiefuping Village, Xing'an County, Guilin

LIU Yongliang; LYU Yong; GAN Fuping; WU Jianqiang; ZHANG Wei; HE Changxiang

doi:10.12097/j.issn.1671-2552.2022.2-3.022

2022 Vol. 41, No. 2-3

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LIU Yongliang, LYU Yong, GAN Fuping, WU Jianqiang, ZHANG Wei, HE Changxiang. Exploration and interpretation method of CSAMT for shallow structure in deep karst area—A case study of Xiebiwan Village—Shangjiefuping Village, Xing'an County, Guilin[J]. Geological Bulletin of China, 2022, 41(2-3): 446-452. doi: 10.12097/j.issn.1671-2552.2022.2-3.022

Citation:

LIU Yongliang, LYU Yong, GAN Fuping, WU Jianqiang, ZHANG Wei, HE Changxiang. Exploration and interpretation method of CSAMT for shallow structure in deep karst area—A case study of Xiebiwan Village—Shangjiefuping Village, Xing'an County, Guilin[J]. Geological Bulletin of China, 2022, 41(2-3): 446-452. doi: 10.12097/j.issn.1671-2552.2022.2-3.022

Exploration and interpretation method of CSAMT for shallow structure in deep karst area—A case study of Xiebiwan Village—Shangjiefuping Village, Xing'an County, Guilin

1.
Institute of Karst Geology, Chinese Academy of Geosciences, Guilin 541004, Guangxi, China
2.
Ministry of Natural Resources/Guangxi Key Laboratory of Karst Dynamics, Guilin 541004, Guangxi, China

Received Date: 05 September 2020

Revised Date: 26 January 2022

Publish Date: 15 March 2022

Abstract

Abstract

CSAMT was used to study the karst geological structure in the west of Xing'an, Guilin, to acquire more information of karst geology.By setting inversion parameters of different depths, the effect of grid size on the resolution of inversion results is compared and analyzed, so as to obtain a higher resolution data inversion method.The resolution of shallow geological structure obtained by small grid is higher than tha obtained by large grid; and the characteristics of shallow karst development can be effectively detected by small grid.The results show that: the resolution of inversion of shallow karst geological structure is influenced by the size of inversion grid, and with the increase of depth, the intensity of karst development becomes weaker.There may be a geothermal field controlled by NE faults in the Xing'an area.This research can be used as a reference for the efficient extract of CSAMT data, and can be used to improve the resolution of electromagnetic inversion.
- karst /
- CSAMT /
- gridding /
- different depth inversion /
- geological survey engineering

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References

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