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Comparison of response characteristics between the electromagnetic method of "Earth-ionosphere" mode and traditional magnetotellurics

文献类型：期刊论文

作者Yang, Liangyong1,2,3,4; Lei, Da1,2,3,4; Li, HuaLin1,2; Lu, Juntao1,2
刊名EXPLORATION GEOPHYSICS
出版日期2019-11-27
页码11
关键词3D modelling electromagnetic methods magnetotellurics finite element
ISSN号0812-3985
DOI10.1080/08123985.2019.1685865
英文摘要As 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.
WOS关键词ELF PROPAGATION ; INVERSION ; MEDIA ; FIELDS
资助项目National Major Project of China[2017ZX05008-007] ; National Key Research Development Program of China[2016YFC0601102] ; National Key Research Development Program of China[2016YFC0601104]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000498921600001
出版者TAYLOR & FRANCIS LTD
资助机构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 ; 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
源URL[http://ir.iggcas.ac.cn/handle/132A11/95785]  
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Lei, Da
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China
推荐引用方式
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.

入库方式： OAI收割

来源：地质与地球物理研究所

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