High-angle fault responsible for the surface ruptures along the northern segment of the Wenchuan Earthquake Fault Zone: Evidence from the latest seismic reflection profiles

doi:10.1016/j.tecto.2013.09.015

	High-angle fault responsible for the surface ruptures along the northern segment of the Wenchuan Earthquake Fault Zone: Evidence from the latest seismic reflection profiles
	Wu, Chan 4; Li, Haibing ; Leloup, Philippe Herve 2; Yu, Changqing ; Si, Jialiang ; Liu, Dongliang ; Pan, Jiawei ; Chevalier, Marie-Luce ; Gong, Zheng 1
刊名	TECTONOPHYSICS
	2014
卷号	619 页码:159-170
关键词	Wenchuan earthquake fault zone Yingxiu-Beichuan fault Surface rupture Seismic reflection profile Focal mechanism
ISSN号	0040-1951
DOI	10.1016/j.tecto.2013.09.015
英文摘要	The inverse/right-lateral Yingxiu-Beichuan fault ruptured during the Wenchuan earthquake for similar to 270 km. We investigated the northeastern segment of that fault by analysing 3 newly acquired and 3 older seismic lines that cross the fault. We combine this analysis with that of the surface ruptures and of the regional geology in order to discuss the geometry, the style and the amount of motion of the fault. We conclude that the YingxiuBeichuan fault is very steep (similar to 70 degrees) at the surface and has still a dip >45 degrees at 6 km depth. The fault offsets all previous structures and particularly the Tangwangzhai nappes from which a vertical offset of 3 to 6 km is evaluated. The right-lateral component of motion along the Yingxiu-Beichuan fault appears to be larger at the surface than at depth and increases only slightly towards the NE. We suggest that the Yingxiu-Beichuan fault is continuous at depth between its northern and southern segments. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	构造地质学
WOS关键词	TIBETAN PLATEAU ; LONGMEN SHAN ; EASTERN MARGIN ; TECTONIC IMPLICATIONS ; SICHUAN BASIN ; THRUST BELT ; CHINA ; UPLIFT ; DEFORMATION ; ASIA
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000335284900017
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40530]
专题	中国地质科学院地质研究所
作者单位	1.State Key Lab Continental Tecton & Dynam, Beijing 100037, Peoples R China 2.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 3.Univ Lyon 1, Ecole Normale Super Lyon, UMR CNRS 5276, Lab Geol Lyon Terre Planetes & Environm, F-69622 Villeurbanne, France 4.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Wu, Chan,Li, Haibing,Leloup, Philippe Herve,et al. High-angle fault responsible for the surface ruptures along the northern segment of the Wenchuan Earthquake Fault Zone: Evidence from the latest seismic reflection profiles[J]. TECTONOPHYSICS,2014,619:159-170.
APA	Wu, Chan.,Li, Haibing.,Leloup, Philippe Herve.,Yu, Changqing.,Si, Jialiang.,...&Gong, Zheng.(2014).High-angle fault responsible for the surface ruptures along the northern segment of the Wenchuan Earthquake Fault Zone: Evidence from the latest seismic reflection profiles.TECTONOPHYSICS,619,159-170.
MLA	Wu, Chan,et al."High-angle fault responsible for the surface ruptures along the northern segment of the Wenchuan Earthquake Fault Zone: Evidence from the latest seismic reflection profiles".TECTONOPHYSICS 619(2014):159-170.