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Three-dimensional tensor controlled-source audio-frequency magnetotelluric inversion using LBFGS

文献类型：期刊论文

作者Wang, Kunpeng1; Tan, Handong1,2; Lin, Changhong1,2; Yuan, Jianlong3; Wang, Cong3; Tang, Jing4
刊名EXPLORATION GEOPHYSICS
出版日期2018-06-01
卷号49期号:3页码:268-284
关键词full impedance LBFGS NLCG tensor CSAMT
ISSN号0812-3985
DOI10.1071/EG16079
文献子类Article
英文摘要The controlled-source audio-frequency magnetotelluric (CSAMT) method has become an important method in geophysical electromagnetic exploration. However, traditional CSAMT only gathers a single set of orthogonal electric and magnetic data, which cannot describe the whole subsurface geological structure. Due to increasingly complex geological targets, the drawbacks of traditional CSAMT have gradually become more significant, promoting the need for tensor CSAMT. Tensor CSAMT can gather richer information, but the 3D forward and inversion models of this method have developed slowly since it was first proposed. The common method for inverting the data of the tensor CSAMT is still magnetotelluric (MT). This paper adopts a staggered-grid finite difference method to realise the 3D forward modelling of the tensor CSAMT. On this basis, we adopt a limited-memory Broyden-Fletcher-Goldfarb-Shanno (LBFGS) method to implement a 3D inversion with full impedance data. Through inverting synthetic and real data, we prove that: (1) directly using an MT method to invert the data of the tensor CSAMT will obtain an incorrect result, (2) the inversion result of tensor CSAMT is more reliable than that of the traditional CSAMT, and (3) LBFGS is more efficient than the nonlinear conjugate gradient (NLCG) for tensor CSAMT. Our research shows that 3D tensor CSAMT inversion with LBFGS is very useful and practical for electromagnetic exploration.
WOS关键词NONLINEAR CONJUGATE GRADIENTS ; CSAMT DATA ; LAYERED EARTH ; AZIMUTHAL ANISOTROPY ; BUCHANS MINE ; 3D ; NEWFOUNDLAND ; EXPLORATION ; ACCURACY
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000435194900003
出版者CSIRO PUBLISHING
资助机构National Natural Science Foundation of China(41374078) ; National Natural Science Foundation of China(41374078) ; Geological Survey Projects of the Ministry of Land and Resources of China(12120113086100 ; Geological Survey Projects of the Ministry of Land and Resources of China(12120113086100 ; 12120113101300) ; 12120113101300) ; National Natural Science Foundation of China(41374078) ; National Natural Science Foundation of China(41374078) ; Geological Survey Projects of the Ministry of Land and Resources of China(12120113086100 ; Geological Survey Projects of the Ministry of Land and Resources of China(12120113086100 ; 12120113101300) ; 12120113101300) ; National Natural Science Foundation of China(41374078) ; National Natural Science Foundation of China(41374078) ; Geological Survey Projects of the Ministry of Land and Resources of China(12120113086100 ; Geological Survey Projects of the Ministry of Land and Resources of China(12120113086100 ; 12120113101300) ; 12120113101300) ; National Natural Science Foundation of China(41374078) ; National Natural Science Foundation of China(41374078) ; Geological Survey Projects of the Ministry of Land and Resources of China(12120113086100 ; Geological Survey Projects of the Ministry of Land and Resources of China(12120113086100 ; 12120113101300) ; 12120113101300)
源URL[http://ir.iggcas.ac.cn/handle/132A11/88199]  
专题中国科学院地质与地球物理研究所
通讯作者Tan, Handong
作者单位1.China Univ Geosci Beijing, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China
2.China Univ Geosci, Minist Educ, Key Lab Geodetect, Beijing 100083, Peoples R China
3.Chengdu Univ Technol, Coll Geophys, Chengdu 610059, Sichuan, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Kunpeng,Tan, Handong,Lin, Changhong,et al. Three-dimensional tensor controlled-source audio-frequency magnetotelluric inversion using LBFGS[J]. EXPLORATION GEOPHYSICS,2018,49(3):268-284.
APA Wang, Kunpeng,Tan, Handong,Lin, Changhong,Yuan, Jianlong,Wang, Cong,&Tang, Jing.(2018).Three-dimensional tensor controlled-source audio-frequency magnetotelluric inversion using LBFGS.EXPLORATION GEOPHYSICS,49(3),268-284.
MLA Wang, Kunpeng,et al."Three-dimensional tensor controlled-source audio-frequency magnetotelluric inversion using LBFGS".EXPLORATION GEOPHYSICS 49.3(2018):268-284.

入库方式： OAI收割

来源：地质与地球物理研究所

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