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Comparison of response characteristics between the electromagnetic method of "Earth-ionosphere" mode and traditional magnetotellurics
Yang, Liangyong1,2,3,4; Lei, Da1,2,3,4; Li, HuaLin1,2; Lu, Juntao1,2
2019-11-27
Source PublicationEXPLORATION GEOPHYSICS
ISSN0812-3985
Pages11
AbstractAs an emerging electromagnetic exploration method, the electromagnetic method of "Earth-ionosphere" mode utilises a fixed high-power long-source antenna to emit extremely low frequency electromagnetic waves. Signals can be received with a large source-receiver offset to perform resource exploration. As a novel exploration method, it is necessary to compare the results with traditional electromagnetic exploration methods to verify its feasibility and analyse its response characteristics. We first introduce the basic principle of the electromagnetic method of "Earth-ionosphere" mode. Then, one-dimensional forward simulations are developed to determine the similarities and differences between the response of this electromagnetic method in the near, far, and waveguide zones with that from the magnetotellurics. The responses of the three-dimensional model are simulated using the edge-based vector finite element method. The forward simulation responses show that the electromagnetic method of "Earth-ionosphere" mode has a significant abnormal response to geological targets, which is similar to other electromagnetic exploration methods. At large source-receiver offsets, the tensor response of the proposed electromagnetic method is consistent with the magnetotellurics. At small source-receiver offsets, there is a near-field response that is similar to the controlled source audio-frequency magnetotellurics. There are some differences between the scalar response and the tensor response when the antennas have certain azimuth angles. Finally, we present the field measured data for the electromagnetic method of "Earth-ionosphere" mode and compare the field measured data with the magnetotelluric data. We deepen our understanding of the electromagnetic method of "Earth-ionosphere" mode by comparing the results with the traditional magnetotellurics, which provides guidance for further development.
Keyword3D modelling electromagnetic methods magnetotellurics finite element
DOI10.1080/08123985.2019.1685865
Funding OrganizationNational Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China
WOS KeywordELF PROPAGATION ; INVERSION ; MEDIA ; FIELDS
Language英语
Funding ProjectNational Major Project of China[2017ZX05008-007] ; National Key Research Development Program of China[2016YFC0601102] ; National Key Research Development Program of China[2016YFC0601104]
Funding OrganizationNational Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China ; National Key Research Development Program of China
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000498921600001
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95785
Collection页岩气与地质工程院重点实验室
Corresponding AuthorLei, Da
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yang, Liangyong,Lei, Da,Li, HuaLin,et al. Comparison of response characteristics between the electromagnetic method of "Earth-ionosphere" mode and traditional magnetotellurics[J]. EXPLORATION GEOPHYSICS,2019:11.
APA Yang, Liangyong,Lei, Da,Li, HuaLin,&Lu, Juntao.(2019).Comparison of response characteristics between the electromagnetic method of "Earth-ionosphere" mode and traditional magnetotellurics.EXPLORATION GEOPHYSICS,11.
MLA Yang, Liangyong,et al."Comparison of response characteristics between the electromagnetic method of "Earth-ionosphere" mode and traditional magnetotellurics".EXPLORATION GEOPHYSICS (2019):11.
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