IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
The Effects of Magnetic Susceptibility on Controlled-Source Audio-Frequency Magnetotellurics
Xiao Tiaojie1; Huang Xiangyu2; Cheng Lianzheng3; Song Tao4; Wang Guangjie5; Yang Bo1; Wang Yun6
2022-06-16
Source PublicationPURE AND APPLIED GEOPHYSICS
ISSN0033-4553
Pages23
AbstractControlled-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.
KeywordCSAMT 3D modeling anisotropy finite element
DOI10.1007/s00024-022-03050-8
Funding OrganizationNational 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)
WOS KeywordELECTRICAL ANISOTROPY ; CSEM DATA ; INVERSION ; FIELDS ; ALGORITHM ; EARTH
Language英语
Funding ProjectNational Natural Science Foundation of China[42104078] ; Open Research Fund from State Key Laboratory of High performance Computing of China (HPCL)[202101-01]
Funding OrganizationNational 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)
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000811968100002
PublisherSPRINGER BASEL AG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/106089
Collection页岩气与地质工程院重点实验室
Corresponding AuthorXiao Tiaojie
Affiliation1.Natl Univ Def Technol, Sci & Technol Parallel & Distributed Proc Lab, Changsha 410073, Peoples R China
2.Cent South Univ, Sch Geosci & Infophys, Changsha 410083, Peoples R China
3.Yunnan Univ, Sch Earth Sci, Kunming 650500, Yunnan, Peoples R China
4.Guiyang Univ, Coll Math & Informat Sci, Guiyang 550005, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Beijing 10029, Peoples R China
6.China Univ Geosci, Sch Geophys & Informat Technol, Beijing 10083, Peoples R China
Recommended Citation
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.
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