Seismic structure of the Longmen Shan region from S-wave tomography and its relationship with the Wenchuan Ms 8.0 earthquake on 12 May 2008, southwestern China

doi:10.1029/2009GL041835

	Seismic structure of the Longmen Shan region from S-wave tomography and its relationship with the Wenchuan Ms 8.0 earthquake on 12 May 2008, southwestern China
	Xu, Yi 1; Li, Zhiwei 1; Huang, Runqiu 2; Xu, Ya 1
刊名	GEOPHYSICAL RESEARCH LETTERS
	2010-01-30
卷号	37
ISSN号	0094-8276
DOI	10.1029/2009GL041835
文献子类	Article
英文摘要	Using arrival time data, we determined seismic structure of the Longmen Shan by S-wave tomography and studied its relations with the Ms 8.0 earthquake in Wenchuan, southwestern China. Our results suggest that the Longmen Shan fault belt is a rheologic boundary between the eastern Tibetan plateau and the Sichuan basin, and the deep crust of the entire Longmen Shan is significantly thickened by ductile deformation. The upper structure of the eastern Tibetan plateau is cored by the high-velocity Pengguan massif. Its collision with the Sichuan basin is the most direct reason for the seismic ruptures on the Longmen Shan fault belt north of Wenchuan, while the lack of earthquakes south of Wenchuan is related to the weakness of the crust. Therefore, The Ms 8.0 earthquake occurred in a strongly heterogeneous region. The variations in the crustal structure largely controlled the initial rupture of the Ms 8.0 earthquake and aftershock activity. Citation: Xu, Y., Z. Li, R. Huang, and Y. Xu (2010), Seismic structure of the Longmen Shan region from S-wave tomography and its relationship with the Wenchuan Ms 8.0 earthquake on 12 May 2008, southwestern China, Geophys. Res. Lett., 37, L02304, doi:10.1029/2009GL041835.
WOS关键词	LOWER CRUSTAL FLOW ; VELOCITY STRUCTURE ; TIBETAN PLATEAU ; EASTERN MARGIN ; RELOCATION ; SEQUENCE
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000274126600005
资助机构	State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu, China(DZKJ-0803) ; State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu, China(DZKJ-0803) ; State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu, China(DZKJ-0803) ; State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu, China(DZKJ-0803) ; State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu, China(DZKJ-0803) ; State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu, China(DZKJ-0803) ; State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu, China(DZKJ-0803) ; State Key Laboratory of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu, China(DZKJ-0803)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/72333]
专题	中国科学院地质与地球物理研究所
通讯作者	Xu, Yi
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China 2.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Peoples R China
推荐引用方式 GB/T 7714	Xu, Yi,Li, Zhiwei,Huang, Runqiu,et al. Seismic structure of the Longmen Shan region from S-wave tomography and its relationship with the Wenchuan Ms 8.0 earthquake on 12 May 2008, southwestern China[J]. GEOPHYSICAL RESEARCH LETTERS,2010,37.
APA	Xu, Yi,Li, Zhiwei,Huang, Runqiu,&Xu, Ya.(2010).Seismic structure of the Longmen Shan region from S-wave tomography and its relationship with the Wenchuan Ms 8.0 earthquake on 12 May 2008, southwestern China.GEOPHYSICAL RESEARCH LETTERS,37.
MLA	Xu, Yi,et al."Seismic structure of the Longmen Shan region from S-wave tomography and its relationship with the Wenchuan Ms 8.0 earthquake on 12 May 2008, southwestern China".GEOPHYSICAL RESEARCH LETTERS 37(2010).