IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Extracting Induced and Remanent Magnetizations From Magnetic Data Modeling
Liu, Shuang1,2,3; Fedi, Maurizio2; Hu, Xiangyun1; Baniamerian, Jamaledin2,4; Wei, Bangshun5; Zhang, Dalian5; Zhu, Rixiang3
2018-11-01
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN2169-9313
卷号123期号:11页码:9290-9309
摘要To investigate the crustal magnetic structure, it is important to assess the susceptibility and remanence properties of rocks and ores. In this paper, we propose a method to extract the contributions of induced and remanent magnetization from modeling of magnetic anomalies. We first estimate the direction of the total magnetization vector by studying the reduced-to-pole anomaly and its correlation with different magnitude magnetic transforms. Then we invert the magnetic data to obtain the volumetric distribution of the magnetization intensity. As the third step, based on a priori information about the Koenigsberger ratio derived from petrophysical measurements, we extract the distributions in the source volume of the induced and remanent magnetization intensities, based on a generalized relationship involving the total and remanent magnetizations, and the true susceptibility. In this way, we are able to produce separate maps of the anomaly fields attributed to the physical magnetic source parameters: remanent and induced magnetization. After validating the method with synthetic data, we analyze the data relative to the Mesozoic and Cenozoic igneous rocks in Yeshan region, eastern China. The analysis of the separated magnetization components reveals that the intrusion of dioritic and basaltic rocks occurred at different geological periods, and the basaltic rocks were magnetized by a reversed geomagnetic field. The uncertainty analysis shows that a larger Koenigsberger ratio is beneficial to extract more reliable remanence and susceptibility information.
关键词magnetic data remanent magnetization magnetic susceptibility Koenigsberger ratio inversion Yeshan
DOI10.1029/2017JB015364
资助者National Key R&D Program of China ; National Key R&D Program of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)
关键词[WOS]POLAR WANDER PATH ; SOURCE STRENGTH ; AMPLITUDE INVERSION ; TOTAL MAGNITUDE ; 3-D INVERSION ; DIRECTION ; GRAVITY ; CHINA ; CONSTRAINTS ; TRANSFORMS
语种英语
资助项目National Key R&D Program of China[2016YFC0600109] ; National Natural Sciences Foundation of China[41604087] ; National Natural Sciences Foundation of China[41874122] ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)[CUGL170407]
资助者National Key R&D Program of China ; National Key R&D Program of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Sciences Foundation of China ; National Natural Sciences Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000454775200016
出版者AMER GEOPHYSICAL UNION
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/90232
专题岩石圈演化国家重点实验室
通讯作者Hu, Xiangyun
作者单位1.China Univ Geosci, Inst Geophys & Geomat, Hubei Subsurface Multiscale Imaging Key Lab, Wuhan, Hubei, Peoples R China
2.Univ Naples Federico II, Dept Earth Environm & Resources Sci, Naples, Italy
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
4.Grad Univ Adv Technol, Dept Earth Sci, Coll Sci & Modern Technol, Kerman, Iran
5.Geol Survey Jiangsu Prov, Nanjing, Jiangsu, Peoples R China
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Liu, Shuang,Fedi, Maurizio,Hu, Xiangyun,et al. Extracting Induced and Remanent Magnetizations From Magnetic Data Modeling[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2018,123(11):9290-9309.
APA Liu, Shuang.,Fedi, Maurizio.,Hu, Xiangyun.,Baniamerian, Jamaledin.,Wei, Bangshun.,...&Zhu, Rixiang.(2018).Extracting Induced and Remanent Magnetizations From Magnetic Data Modeling.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,123(11),9290-9309.
MLA Liu, Shuang,et al."Extracting Induced and Remanent Magnetizations From Magnetic Data Modeling".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 123.11(2018):9290-9309.
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