Analysis of the seismicity in central Tibet based on the SANDWICH network and its tectonic implications

doi:10.1016/j.tecro.2017.02.020

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Analysis of the seismicity in central Tibet based on the SANDWICH network and its tectonic implications
	Zhu, Gaohua 1,2,3; Liang, Xiaofeng 1; Tian, Xiaobo 1,4; Yang, Hongfeng 3; Wu, Chenglong1,2 ; Duan, Yaohui 1,2; Li, Wei 1,2; Zhou, Beibei 1,2
刊名	TECTONOPHYSICS
	2017-04-04
卷号	702 页码:1-7
关键词	Central Tibetan Plateau Conjugate Strike-slip Faults Seismicity Crustal Deformation
ISSN号	0040-1951
DOI	10.1016/j.tecro.2017.02.020
文献子类	Article
英文摘要	We have located a total of 232 local earthquakes using data recorded by the SANDWICH seismic network from November 2013 to October 2014 in central Tibet across the Bangong-Nujiang suture (BNS). The focal depths of all earthquakes are shallower than 30 km and therefore are in the upper crust. The absence of lower crust earthquakes may imply a weak, ductile lower crust in central Tibet. Moreover, these earthquakes are dispersed throughout conjugate strike-slip fault zones, indicating that evenly distributed upper crustal deformation might predominate in central Tibet. This observation agrees with the hypothesis that conjugate fault zones accommodate coeval east-west extension and north-south contraction via continuous deformation. Moreover, the focal mechanisms show that strike-slip and normal faulting are the dominant types of deformation and that the extension in central Tibet is oriented approximately east-west. Despite some anomalies, the kinematics implied by most of the focal mechanisms correlate well with those of the surface structures. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	EAST-WEST EXTENSION ; LOWER CRUSTAL FLOW ; SOUTHERN TIBET ; CONTINENTAL LITHOSPHERE ; ACTIVE TECTONICS ; BENEATH SOUTHERN ; FOCAL DEPTHS ; PLATEAU ; EARTHQUAKE ; DEFORMATION
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000399511100001
资助机构	Strategic Priority Research Program (B) of Chinese Academy of Sciences(XDB03010700) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences(XDB03010700) ; National Key Research and Development Project of China(2016YFC0600301) ; National Key Research and Development Project of China(2016YFC0600301) ; National Natural Science Foundation of China(41574048 ; National Natural Science Foundation of China(41574048 ; Hong Kong SAR Research Grant Council(2191093 ; Hong Kong SAR Research Grant Council(2191093 ; NSFC/RGC Joint Research Scheme(N_CUHK430/16) ; NSFC/RGC Joint Research Scheme(N_CUHK430/16) ; 41404051 ; 41404051 ; 2130509) ; 2130509) ; 41274090 ; 41274090 ; 41574056) ; 41574056) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences(XDB03010700) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences(XDB03010700) ; National Key Research and Development Project of China(2016YFC0600301) ; National Key Research and Development Project of China(2016YFC0600301) ; National Natural Science Foundation of China(41574048 ; National Natural Science Foundation of China(41574048 ; Hong Kong SAR Research Grant Council(2191093 ; Hong Kong SAR Research Grant Council(2191093 ; NSFC/RGC Joint Research Scheme(N_CUHK430/16) ; NSFC/RGC Joint Research Scheme(N_CUHK430/16) ; 41404051 ; 41404051 ; 2130509) ; 2130509) ; 41274090 ; 41274090 ; 41574056) ; 41574056) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences(XDB03010700) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences(XDB03010700) ; National Key Research and Development Project of China(2016YFC0600301) ; National Key Research and Development Project of China(2016YFC0600301) ; National Natural Science Foundation of China(41574048 ; National Natural Science Foundation of China(41574048 ; Hong Kong SAR Research Grant Council(2191093 ; Hong Kong SAR Research Grant Council(2191093 ; NSFC/RGC Joint Research Scheme(N_CUHK430/16) ; NSFC/RGC Joint Research Scheme(N_CUHK430/16) ; 41404051 ; 41404051 ; 2130509) ; 2130509) ; 41274090 ; 41274090 ; 41574056) ; 41574056) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences(XDB03010700) ; Strategic Priority Research Program (B) of Chinese Academy of Sciences(XDB03010700) ; National Key Research and Development Project of China(2016YFC0600301) ; National Key Research and Development Project of China(2016YFC0600301) ; National Natural Science Foundation of China(41574048 ; National Natural Science Foundation of China(41574048 ; Hong Kong SAR Research Grant Council(2191093 ; Hong Kong SAR Research Grant Council(2191093 ; NSFC/RGC Joint Research Scheme(N_CUHK430/16) ; NSFC/RGC Joint Research Scheme(N_CUHK430/16) ; 41404051 ; 41404051 ; 2130509) ; 2130509) ; 41274090 ; 41274090 ; 41574056) ; 41574056)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/52965]
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	Tian, Xiaobo
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Univ Hong Kong, Fac Sci, Earth Syst Sci Programme, Hong Kong, Hong Kong, Peoples R China 4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Gaohua,Liang, Xiaofeng,Tian, Xiaobo,et al. Analysis of the seismicity in central Tibet based on the SANDWICH network and its tectonic implications[J]. TECTONOPHYSICS,2017,702:1-7.
APA	Zhu, Gaohua.,Liang, Xiaofeng.,Tian, Xiaobo.,Yang, Hongfeng.,Wu, Chenglong.,...&Zhou, Beibei.(2017).Analysis of the seismicity in central Tibet based on the SANDWICH network and its tectonic implications.TECTONOPHYSICS,702,1-7.
MLA	Zhu, Gaohua,et al."Analysis of the seismicity in central Tibet based on the SANDWICH network and its tectonic implications".TECTONOPHYSICS 702(2017):1-7.