IGGCAS OpenIR  > 矿产资源研究院重点实验室
Exploration of Deep Magnetite Deposit Under Thick and Conductive Overburden with Ex Component of SOTEM: A Case Study in China
Hou, Dongyang1,2,3; Xue, Guoqiang1,2,3; Zhou, Nannan1,2,3; Chen, Wen1,2,3; Xue, Junjie4
2019-02-01
Source PublicationPURE AND APPLIED GEOPHYSICS
ISSN0033-4553
Volume176Issue:2Pages:857-871
AbstractIn northern China, thick loess strata with low resistivity are widely present and can shield the deep induced electromagnetic field signal and influence the accuracy of deep targets while electromagnetic prospecting is being performed. To achieve deep target exploration with high resolution, a new technique known as the short offset transient electromagnetic method (SOTEM) is applied in this research area. This method can be used to perform near-source configuration surveys, but shows no obvious difference between the deep magnetite deposit and low-resistivity layer in this survey area. Therefore, it cannot explore the magnetite deposit directly using the traditional magnetic component (Hz) of SOTEM. The Ex component, which can more effectively distinguish the high-resistivity surrounding rock and overlying low-resistivity layer than the Hz component, is used for exploration. First, 2D forward modeling and sensitivity analysis of the high-resistivity body are carried out to determine the different responses of the Ex and Hz components, respectively. Moreover, to better determine the interface between the surrounding rock and low-resistivity layer, 1D Occam inversion and the generalized inverse matrix inversion method are used. Furthermore, aiming at the static effect of the Ex component in field exploration, joint inversion of the Ex and Hz components is carried out for comprehensive interpretation. Finally, a field test is conducted, and the drilling results are used for verification. The research results can provide an effective geophysical model for the exploration of contact metasomatic magnetite deposits.
KeywordLow-resistivity layer magnetite deposit SOTEM Ex component joint inversion
DOI10.1007/s00024-018-2005-8
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation
WOS KeywordFINITE-DIFFERENCE ; TRANSIENT ; INVERSION ; PROVINCE ; SMOOTH ; MODELS
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC0601204] ; Natural Science Foundation of China (NSFC)[41474095] ; Beijing Natural Science Foundation[8182054]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Natural Science Foundation of China (NSFC) ; Beijing Natural Science Foundation ; Beijing Natural Science Foundation
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000460039400020
PublisherSPRINGER BASEL AG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90890
Collection矿产资源研究院重点实验室
Corresponding AuthorHou, Dongyang
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Liaoning Univ Technol, Coll Sci, Jinzhou 121001, Peoples R China
Recommended Citation
GB/T 7714
Hou, Dongyang,Xue, Guoqiang,Zhou, Nannan,et al. Exploration of Deep Magnetite Deposit Under Thick and Conductive Overburden with Ex Component of SOTEM: A Case Study in China[J]. PURE AND APPLIED GEOPHYSICS,2019,176(2):857-871.
APA Hou, Dongyang,Xue, Guoqiang,Zhou, Nannan,Chen, Wen,&Xue, Junjie.(2019).Exploration of Deep Magnetite Deposit Under Thick and Conductive Overburden with Ex Component of SOTEM: A Case Study in China.PURE AND APPLIED GEOPHYSICS,176(2),857-871.
MLA Hou, Dongyang,et al."Exploration of Deep Magnetite Deposit Under Thick and Conductive Overburden with Ex Component of SOTEM: A Case Study in China".PURE AND APPLIED GEOPHYSICS 176.2(2019):857-871.
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