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  4. 中国科学院地球与行星物理重点实验室
Complex Deformation of Central and North China Through Pn Velocity and Anisotropy Tomography

文献类型：期刊论文

作者Lu, Yan1,2,3; Xu, Yihe4; Liu, Jiaqi1,2,3; He, Yuhui1,2,3; Zhang, Jinhai1,2,3
刊名GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
出版日期2020
卷号21期号:1页码:14
关键词Pn velocity anisotropy uppermost mantle extrusion
DOI10.1029/2019GC008661
英文摘要Using our recently developed Pn tomography method, we obtain high-resolution Pn velocity and anisotropy structures of uppermost mantle beneath the Central and North China, which provide useful insight concerning the mechanism of intraplate mantle dynamics. The consistency between the new Pn model and seismic reflection/refraction profiles demonstrates the high quality of our model. Based on the Pn anisotropy structure surrounding the Alxa Block, we infer that material extrusion from northeastern Tibet was impeded and turned to the west and south edges of the Alxa Block. The Pn structures beneath the Sichuan Basin and Songpan-Ganzi Orogen suggest that the stable Sichuan Basin impeded material extrusion from the Tibetan Plateau and caused material from Tibet to be extruded separately along the west and northwest edges of the Sichuan Basin. To the north of the Sichuan Basin, we infer that the extrusion has ceased within the Songpan-Ganzi Orogen rather than to further east. The high Pn velocities beneath the Qinling Orogen do not support the proposal of large-scale eastward material escaping flow in the shallow mantle beneath the western Qinling Orogen. The Pn velocity distribution beneath the North China Craton indicates that hot material from the mantle is more likely to upwell beneath deep faults or active orogenic areas. Our model indicates that the northern and central parts of the Ordos Block retain stable structures at the uppermost mantle, while its southeastern has been reworked by hot material.
WOS关键词UPPER-MANTLE BENEATH ; SOUTHEASTERN TIBETAN PLATEAU ; NORTHEASTERN MARGIN ; SEISMIC ANISOTROPY ; VERTICAL COHERENCE ; EASTERN MARGIN ; CRUSTAL FLOW ; LITHOSPHERE ; ASIA ; DYNAMICS
资助项目National Natural Science Foundation of China[41674066] ; National Natural Science Foundation of China[41874066] ; National Natural Science Foundation of China[41630210] ; National Natural Science Foundation of China[41804054] ; Key Research Program of the Institute of Geology Geophysics CAS[IGGCAS-201904]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000537691500005
出版者AMER GEOPHYSICAL UNION
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 ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/96658]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Lu, Yan
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
4.China Earthquake Adm, Inst Geophys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Yan,Xu, Yihe,Liu, Jiaqi,et al. Complex Deformation of Central and North China Through Pn Velocity and Anisotropy Tomography[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2020,21(1):14.
APA Lu, Yan,Xu, Yihe,Liu, Jiaqi,He, Yuhui,&Zhang, Jinhai.(2020).Complex Deformation of Central and North China Through Pn Velocity and Anisotropy Tomography.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,21(1),14.
MLA Lu, Yan,et al."Complex Deformation of Central and North China Through Pn Velocity and Anisotropy Tomography".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 21.1(2020):14.

入库方式： OAI收割

来源：地质与地球物理研究所

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