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The Effects of Magnetic Susceptibility on Controlled-Source Audio-Frequency Magnetotellurics

文献类型：期刊论文

作者Xiao Tiaojie5; Huang Xiangyu6; Cheng Lianzheng1; Song Tao2; Wang Guangjie4; Yang Bo5; Wang Yun3
刊名PURE AND APPLIED GEOPHYSICS
出版日期2022-06-16
页码23
关键词CSAMT 3D modeling anisotropy finite element
ISSN号0033-4553
DOI10.1007/s00024-022-03050-8
英文摘要Controlled-source audio-frequency magnetotellurics (CSAMT) is an important geophysical tool which has been widely used in many areas, such as mineral surveys and groundwater and geothermal exploration. Numerous studies have shown that resistivity anisotropy has a significant influence on CSAMT responses, while another important physical parameter-magnetic susceptibility-is often neglected. In fact, for items such as magnetic minerals, steel pipes and concrete reinforcing bars, the magnetic susceptibility is often non-negligible. However, to the best of our knowledge, there are no three-dimensional (3D) CSAMT studies that have taken both resistivity anisotropy and magnetic susceptibility anisotropy into consideration. Therefore, we present a 3D CSAMT forward modeling algorithm which is capable of handling 3D resistivity and susceptibility anisotropic anomalies using the finite element method. In the far-field zone, this algorithm shows highly accurate results by comparison with the analytical and numerical solutions of MT. Then, the responses of four different models are studied. The results show that for magnetic anomalies with low resistivity contrast, the consideration of magnetic susceptibility is essential, as high susceptibility may seriously distort or even invert its responses.
WOS关键词ELECTRICAL ANISOTROPY ; CSEM DATA ; INVERSION ; FIELDS ; ALGORITHM ; EARTH
资助项目National Natural Science Foundation of China[42104078] ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL)[202101-01]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000811968100002
出版者SPRINGER BASEL AG
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL) ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL) ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL) ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL) ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL)
源URL[http://ir.iggcas.ac.cn/handle/132A11/106089]  
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Xiao Tiaojie
作者单位1.Yunnan Univ, Sch Earth Sci, Kunming 650500, Yunnan, Peoples R China
2.Guiyang Univ, Coll Math & Informat Sci, Guiyang 550005, Peoples R China
3.China Univ Geosci, Sch Geophys & Informat Technol, Beijing 10083, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 10029, Peoples R China
5.Natl Univ Def Technol, Sci & Technol Parallel & Distributed Proc Lab, Changsha 410073, Peoples R China
6.Cent South Univ, Sch Geosci & Infophys, Changsha 410083, Peoples R China
推荐引用方式
GB/T 7714		 Xiao Tiaojie,Huang Xiangyu,Cheng Lianzheng,et al. The Effects of Magnetic Susceptibility on Controlled-Source Audio-Frequency Magnetotellurics[J]. PURE AND APPLIED GEOPHYSICS,2022:23.
APA Xiao Tiaojie.,Huang Xiangyu.,Cheng Lianzheng.,Song Tao.,Wang Guangjie.,...&Wang Yun.(2022).The Effects of Magnetic Susceptibility on Controlled-Source Audio-Frequency Magnetotellurics.PURE AND APPLIED GEOPHYSICS,23.
MLA Xiao Tiaojie,et al."The Effects of Magnetic Susceptibility on Controlled-Source Audio-Frequency Magnetotellurics".PURE AND APPLIED GEOPHYSICS (2022):23.

入库方式： OAI收割

来源：地质与地球物理研究所

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