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  4. 岩石圈演化国家重点实验室
Contrasting crustal deformation mechanisms in the Longmenshan and West Qinling orogenic belts, NE Tibet, revealed by magnetotelluric data

文献类型：期刊论文

作者Xue, Shuai; Bai, Denghai1; Chen, Yun; Ma, Xiaobing; Chen, Lin; Li, Xin; Yan, Yongli
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2019-06-01
卷号176页码:120-128
ISSN号1367-9120
关键词Magnetotellurics Electrical resistivity structure Crustal deformation Longmenshan orogenic belt West Qinling orogenic belt
DOI10.1016/j.jseaes.2019.01.039
英文摘要The northeastern margin of Tibet is the youngest risen part and key area for understanding the growth mechanism of the Tibetan Plateau. New broadband magnetotelluric (MT) data are conducted at the conjunction of the Longmenshan and West Qinling orogenic belts in NE Tibet. The preferred resistivity model obtained using 3-D inversion method shows a dramatic resistivity contrast from the Sichuan Basin (SB) to the West Qinling Orogenic Belt (WQOB). Beneath the SB and Longmenshan Orogenic Belt (LMSOB), several low-resistivity zones are distributed in the upper crust underlain by an intact resistive lower crust, indicating the upper crustal deformation is responsible for the uplift of the LMSOB. While to the north, a prominently conductive lower crust is observed, favoring the ductile deformation of the weak lower crust plays a significant role in the crustal thickening of the WQOB. Therefore, we suggest contrasting crustal deformation mechanisms work in the LMSOB and WQOB, and diversified crustal deformations together contribute to the marginal growth of the plateau. Moreover, combining with other studies, we propose the deep conductive bodies beneath the WQOB would be induced by the hot upwelling related to the asthenospheric flow from the plateau.
WOS关键词NORTHEASTERN MARGIN ; STRUCTURE BENEATH ; NORTHERN MARGIN ; EASTERN MARGIN ; TECTONIC EVOLUTION ; EASTWARD EXPANSION ; PLATEAU EVIDENCE ; JOINT INVERSION ; ORDOS BLOCK ; STRIKE-SLIP
资助项目National Natural Science Foundation of China[41330212] ; National Natural Science Foundation of China[41474056] ; National Natural Science Foundation of China[41804090]
WOS研究方向Geology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000466823600010
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/91475]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Bai, Denghai
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Xue, Shuai,Bai, Denghai,Chen, Yun,et al. Contrasting crustal deformation mechanisms in the Longmenshan and West Qinling orogenic belts, NE Tibet, revealed by magnetotelluric data[J]. JOURNAL OF ASIAN EARTH SCIENCES,2019,176:120-128.
APA Xue, Shuai.,Bai, Denghai.,Chen, Yun.,Ma, Xiaobing.,Chen, Lin.,...&Yan, Yongli.(2019).Contrasting crustal deformation mechanisms in the Longmenshan and West Qinling orogenic belts, NE Tibet, revealed by magnetotelluric data.JOURNAL OF ASIAN EARTH SCIENCES,176,120-128.
MLA Xue, Shuai,et al."Contrasting crustal deformation mechanisms in the Longmenshan and West Qinling orogenic belts, NE Tibet, revealed by magnetotelluric data".JOURNAL OF ASIAN EARTH SCIENCES 176(2019):120-128.

入库方式： OAI收割

来源：地质与地球物理研究所

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