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Crustal shear wave velocity structure in the northeastern Tibet based on the Neighbourhood algorithm inversion of receiver functions

文献类型：期刊论文

作者Wu, Zhenbo1; Xu, Tao2,3; Liang, Chuntao4,5; Wu, Chenglong2; Liu, Zhiqiang1
刊名GEOPHYSICAL JOURNAL INTERNATIONAL
出版日期2018-03-01
卷号212期号:3页码:1920-1931
关键词Asia Inverse theory Crustal imaging Crustal structure
ISSN号0956-540X
DOI10.1093/gji/ggx521
文献子类Article
英文摘要The northeastern (NE) Tibet records and represents the far-field deformation response of the collision between the Indian and Eurasian plates in the Cenozoic time. Over the past two decades, studies have revealed the existence of thickened crust in the NE Tibet, but the thickening mechanism is still in debate. We deployed a passive-source seismic profile with 22 temporary broad-band seismic stations in the NE Tibet to investigate the crustal shear wave velocity structure in this region. We selected 288 teleseismic events located in the west Pacific subduction zone near Japan with similar ray path to calculate P-wave receiver functions. Neighbourhood algorithm method is applied to invert the shear wave velocity beneath stations. The inversion result shows a low-velocity zone (LVZ) is roughly confined to the Songpan Ganzi block and Kunlun mountains and extends to the southern margin of Gonghe basin. Considering the low P-wave velocity revealed by the wide-angle reflection refraction seismic experiment and high ratio of Vp/Vs based on H-k grid searching of the receiver functions in this profile, LVZ may be attributed to partial melting induced by temperature change. This observation appears to be consistent with the crustal ductile deformation in this region derived from other geophysical investigations.
WOS关键词AMBIENT NOISE TOMOGRAPHY ; UPPER-MANTLE STRUCTURE ; KUNLUN FAULT ; GEOPHYSICAL INVERSION ; ASIAN LITHOSPHERE ; JOINT INVERSION ; PLATEAU MARGIN ; NORTHERN TIBET ; BENEATH ; ZONE
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000427926300027
出版者OXFORD UNIV PRESS
资助机构National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; 41474068 ; 41474068 ; 41474068 ; 41474068 ; 413401011) ; 413401011) ; 413401011) ; 413401011) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; 41474068 ; 41474068 ; 41474068 ; 41474068 ; 413401011) ; 413401011) ; 413401011) ; 413401011) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; 41474068 ; 41474068 ; 41474068 ; 41474068 ; 413401011) ; 413401011) ; 413401011) ; 413401011) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National key research and development programme of China(2016YFC0600302) ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; National Natural Science Foundation of China(41522401 ; 41474068 ; 41474068 ; 41474068 ; 41474068 ; 413401011) ; 413401011) ; 413401011) ; 413401011)
源URL[http://ir.iggcas.ac.cn/handle/132A11/83008]  
专题中国科学院地质与地球物理研究所
通讯作者Xu, Tao
作者单位1.Chengdu Univ Technol, Coll Geophys, Chengdu 610059, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China
5.Chengdu Univ Technol, Key Lab Earth Explorat & Informat Tech Sichuan Pr, Chengdu 610059, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Zhenbo,Xu, Tao,Liang, Chuntao,et al. Crustal shear wave velocity structure in the northeastern Tibet based on the Neighbourhood algorithm inversion of receiver functions[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2018,212(3):1920-1931.
APA Wu, Zhenbo,Xu, Tao,Liang, Chuntao,Wu, Chenglong,&Liu, Zhiqiang.(2018).Crustal shear wave velocity structure in the northeastern Tibet based on the Neighbourhood algorithm inversion of receiver functions.GEOPHYSICAL JOURNAL INTERNATIONAL,212(3),1920-1931.
MLA Wu, Zhenbo,et al."Crustal shear wave velocity structure in the northeastern Tibet based on the Neighbourhood algorithm inversion of receiver functions".GEOPHYSICAL JOURNAL INTERNATIONAL 212.3(2018):1920-1931.

入库方式： OAI收割

来源：地质与地球物理研究所

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