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Application of 2D magnetotelluric methods in a geological complex area, Xinjiang, China

文献类型：期刊论文

作者Xiao Qibin1; Cai Xinping2; Liang Guanghe2; Xu Xingwang2; Zhang Baolin2
刊名JOURNAL OF APPLIED GEOPHYSICS
出版日期2011-09-01
卷号75期号:1页码:19-30
关键词Magnetotellurics 2d Inversions Geological Complex Area Xinjiang
ISSN号0926-9851
DOI10.1016/j.jappgeo.2011.06.007
文献子类Article
英文摘要Magnetotelluric (MT) data along two profiles were collected in Tulargen Cu-Ni mining area, Xinjiang, China. The MT profiles, crossing the known ore-bearing magmatic body, are interpreted to have further understanding of the ore-bearing magmatic bodies' stretch and shape in depth, and to evaluate the prospect in the mining area. The values of phase sensitivity skewness indicate a contaminated two-dimensional (2D) structure (there exist local three-dimensional (3D) structures at shallow level) over 3D structures. G-B decomposition of the impedance tensors indicates the dominant geoelectrical strike in survey area is in East-West direction. To obtain reliable electrical structures, four different 2D inversion codes as REBOCC, NLCG, OCCAM, and ABIC are adopted, inversions of a synthetic 3D model using these codes indicate TM data are more suitable to invert the electrical structures along the profiles in Tulargen Cu-Ni mining area, while TE and TE + TM inversions can be used to verify the transverse variation of electrical structures at shallow level. The 2D electrical structures show high-resistivity basement covered by relatively low-resistivity strata in the mining area, the conductive anomalies are imbedded in the upper covers. The known ore-bearing magmatic body is coincided with the positions of two conductive anomalies in both profiles at shallow level; its extension at depth is deduced according to the shapes of the anomalies. Other conductive anomalies, isolated and existing only at limited depth as the known ore-bearing magmatic body, are presumed of good prospect. (C) 2011 Elsevier B.V. All rights reserved.
WOS关键词IMPEDANCE TENSOR ; 2-DIMENSIONAL INTERPRETATION ; DIFFERENCE-EQUATIONS ; NEAR-SURFACE ; INVERSION ; DISTORTION ; DECOMPOSITION ; SMOOTH ; 3D ; EXPLORATION
WOS研究方向Geology ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000295346400003
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China(40974042) ; National Natural Science Foundation of China(40974042) ; Foundation of Institute of Geology, China Earthquake Administration(DF-IGCEA-0608-2-16) ; Foundation of Institute of Geology, China Earthquake Administration(DF-IGCEA-0608-2-16) ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China(40974042) ; National Natural Science Foundation of China(40974042) ; Foundation of Institute of Geology, China Earthquake Administration(DF-IGCEA-0608-2-16) ; Foundation of Institute of Geology, China Earthquake Administration(DF-IGCEA-0608-2-16) ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China(40974042) ; National Natural Science Foundation of China(40974042) ; Foundation of Institute of Geology, China Earthquake Administration(DF-IGCEA-0608-2-16) ; Foundation of Institute of Geology, China Earthquake Administration(DF-IGCEA-0608-2-16) ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China(40974042) ; National Natural Science Foundation of China(40974042) ; Foundation of Institute of Geology, China Earthquake Administration(DF-IGCEA-0608-2-16) ; Foundation of Institute of Geology, China Earthquake Administration(DF-IGCEA-0608-2-16) ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/73682]  
专题中国科学院地质与地球物理研究所
通讯作者Xiao Qibin
作者单位1.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Xiao Qibin,Cai Xinping,Liang Guanghe,et al. Application of 2D magnetotelluric methods in a geological complex area, Xinjiang, China[J]. JOURNAL OF APPLIED GEOPHYSICS,2011,75(1):19-30.
APA Xiao Qibin,Cai Xinping,Liang Guanghe,Xu Xingwang,&Zhang Baolin.(2011).Application of 2D magnetotelluric methods in a geological complex area, Xinjiang, China.JOURNAL OF APPLIED GEOPHYSICS,75(1),19-30.
MLA Xiao Qibin,et al."Application of 2D magnetotelluric methods in a geological complex area, Xinjiang, China".JOURNAL OF APPLIED GEOPHYSICS 75.1(2011):19-30.

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来源：地质与地球物理研究所

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