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Identifying deep ore bodies using the Multi-Channel Transient Electromagnetic Method (MTEM) : an example of a lead-zinc-silver mine in Inner Mongolia
Ouyang Tao1,2,4,5; Di QingYun1,2,4,5; Xue GuoQiang3,4,5; Lei Da1,2,4,5
2019-05-01
Source PublicationCHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
Volume62Issue:5Pages:1981-1990
AbstractThe Multi-Channel Transient Electromagnetic Method(MTEM)adopts pseudo-random code transmission and best matching coherent decoding technology, thus its exploration depth is larger and the anti-interference ability is stronger than the traditional time domain electromagnetic method, and it becomes a research focus in ground resource exploration. This paper presents the application of the method to a lead-zinc-silver mine in Xingan League of Inner Mongolia. In view of its large burial depth, firstly, we establish a one-dimensional and a two-dimensional model based on the data of the mining area. Then we calculate the impulse response and analyze its characteristics. Results show that the MTEM can reflect well the resistance anomalies at large depths. This technology is used to carry out an example survey in the mining area. In the data processing process, the deconvolution method is used to extract the earth impulse response, and the apparent resistivity is calculated according to the peak moment of the axial ground impulse response. The full-waveform inversion of the apparent resistivity yields an explanatory profile. The comparison with the borehole data of the survey area proves that the MTEM is an effective method to reveal bodies with low-resistance anomalies in the deep subsurface.
KeywordDeep ore body Lead-zinc-silver mine Multi-Channel Transient Electromagnetic Method(MTEM) Earth impulse response
DOI10.6038/cjg2019N0071
WOS KeywordFULL-TIME ; INVERSION
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000467308600032
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/91490
Collection页岩气与地质工程院重点实验室
Corresponding AuthorDi QingYun
Affiliation1.Chinese Acad Sci, Key Lab Shale Gas, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Geoengn Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Earth Sci, Beijing 100049, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Ouyang Tao,Di QingYun,Xue GuoQiang,et al. Identifying deep ore bodies using the Multi-Channel Transient Electromagnetic Method (MTEM) : an example of a lead-zinc-silver mine in Inner Mongolia[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(5):1981-1990.
APA Ouyang Tao,Di QingYun,Xue GuoQiang,&Lei Da.(2019).Identifying deep ore bodies using the Multi-Channel Transient Electromagnetic Method (MTEM) : an example of a lead-zinc-silver mine in Inner Mongolia.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(5),1981-1990.
MLA Ouyang Tao,et al."Identifying deep ore bodies using the Multi-Channel Transient Electromagnetic Method (MTEM) : an example of a lead-zinc-silver mine in Inner Mongolia".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.5(2019):1981-1990.
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