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Panoptic View of Mantle Flow Beneath Trans-Continental Northeast Asia: Distinct Variation Detected From similar to 2,000 km Shear Wave Splitting Profile

文献类型：期刊论文

作者Yang, Fan1,2; Guo, Guangrui1,2,3; Li, Juan1,2,4; Chen, Qi-Fu1,2,4; Chen, Yun5,6; Chen, Sidan1,2
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2022-04-16
卷号49期号:7页码:11
关键词seismic anisotropy Northeast China shear wave splitting mantle flow north-south gravity lineament subduction zone
ISSN号0094-8276
DOI10.1029/2021GL097116
英文摘要We obtained a panoptic view of the pattern of mantle flow in the "Big Mantle Wedge" associated with the stagnation of the subducting Pacific slab. We applied a simultaneous inversion of multiple waveforms method to measure SKS-wave splitting parameters for a dense seismic array in trans-continental Northeast Asia. We identify distinct patterns separated by the North-South Gravity Lineament (NSGL): to the west, the ENE fast axis orientation with small delta t reflects limited frozen anisotropy in the stable lithosphere; while to the east, local variation of anisotropy is superimposed on the NNW-dominated fast direction, suggesting contribution of other mechanisms rather than the only asthenospheric flow. Within a distance of 200 km crossing the NSGL, we reveal a gradual clockwise rotation in the fast direction, and the keel-deflected flow caused by the 60-80 km reduction in the lithosphere thickness across the NSGL might contribute to the variation of anisotropy.
WOS关键词NE CHINA CONSTRAINTS ; SEISMIC ANISOTROPY ; EASTERN CHINA ; SUBDUCTION ; SKS ; CRUSTAL ; WEDGE ; ZONE ; DEFORMATION ; EVOLUTION
资助项目National Natural Science Foundation of China[42074063] ; National Natural Science Foundation of China[41774065] ; National Natural Science Foundation of China[41774058] ; Chinese Academy of Sciences[XDB18000000] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201904]
WOS研究方向Geology
语种英语
WOS记录号WOS:000779314300001
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 ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 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 ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 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 ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 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 ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 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/132A11/105089]  
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
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Li, Juan
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Northwest Petrochina, Res Inst Petr Explorat & Dev, Lanzhou, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Heilongjiang Mohe Observ Geophys, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
6.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Fan,Guo, Guangrui,Li, Juan,et al. Panoptic View of Mantle Flow Beneath Trans-Continental Northeast Asia: Distinct Variation Detected From similar to 2,000 km Shear Wave Splitting Profile[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(7):11.
APA Yang, Fan,Guo, Guangrui,Li, Juan,Chen, Qi-Fu,Chen, Yun,&Chen, Sidan.(2022).Panoptic View of Mantle Flow Beneath Trans-Continental Northeast Asia: Distinct Variation Detected From similar to 2,000 km Shear Wave Splitting Profile.GEOPHYSICAL RESEARCH LETTERS,49(7),11.
MLA Yang, Fan,et al."Panoptic View of Mantle Flow Beneath Trans-Continental Northeast Asia: Distinct Variation Detected From similar to 2,000 km Shear Wave Splitting Profile".GEOPHYSICAL RESEARCH LETTERS 49.7(2022):11.

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来源：地质与地球物理研究所

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