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DOI	10.1016/j.epsl.2009.07.017
	Co-seismic ruptures of the 12 May 2008, M-s 8.0 Wenchuan earthquake, Sichuan: East-west crustal shortening on oblique, parallel thrusts along the eastern edge of Tibet
	Liu-Zeng, J.; Zhang, Z.; Wen, L.; Tapponnier, P.; Sun, J.; Xing, X.; Hu, G.; Xu, Q.; Zeng, L.; Ding, L.; Ji, C.; Hudnut, K. W.; van der Woerd, J.
通讯作者	Liu-Zeng, J (通讯作者)
发表日期	2009
ISSN	0012-821X
EISSN	1385-013X
起始页码	355
结束页码	370
卷号	286 期号:3-4
英文摘要	The M-s 8.0, Wenchuan earthquake, which devastated the mountainous western rim of the Sichuan basin in central China, produced a surface rupture over 200 km-long with oblique thrust/dextral slip and maximum scarp heights of similar to 10 m. It thus ranks as one of the world's largest continental mega-thrust events in the last 150 yrs. Field investigation shows clear surface breaks along two of the main branches of the NE-trending Longmen Shan thrust fault system. The principal rupture, on the NW-dipping Beichuan fault, displays nearly equal amounts of thrust and right-lateral slip. Basin-ward of this rupture, another continuous surface break is observed for over 70 km on the parallel, more shallowly NW-clipping Pengguan fault. Slip on this latter fault was pure thrusting, with a maximum scarp height of similar to 3.5 m. This is one of the very few reported instances of crustal-scale co-seismic slip partitioning on parallel thrusts. This out-of-sequence event, with distributed surface breaks on crustal mega-thrusts, highlights regional, similar to EW-directed, present day crustal shortening oblique to the Longmen Shan margin of Tibet. The long rupture and large offsets with strong horizontal shortening that characterize the Wenchuan earthquake herald a re-evaluation of tectonic models anticipating little or no active shortening of the upper crust along this edge of the plateau, and require a re-assessment of seismic hazard along potentially under-rated active faults across the densely populated western Sichuan basin and mountains. (C) 2009 Elsevier B.V. All rights reserved.
关键词	INDIA-ASIA COLLISION LONGMEN SHAN KOKOXILI-EARTHQUAKE CHINA PLATEAU DEFORMATION SLIP GROWTH MARGIN UPLIFT
英文关键词	Wenchuan earthquake; Longmen Shan thrust belt; Tibetan plateau; surface rupture; co-seismic slip partitioning; out-of-sequence thrusting earthquake
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000271358300002
来源期刊	EARTH AND PLANETARY SCIENCE LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257714
推荐引用方式 GB/T 7714	Liu-Zeng, J.,Zhang, Z.,Wen, L.,et al. Co-seismic ruptures of the 12 May 2008, M-s 8.0 Wenchuan earthquake, Sichuan: East-west crustal shortening on oblique, parallel thrusts along the eastern edge of Tibet[J]. 中国科学院青藏高原研究所,2009,286(3-4).
APA	Liu-Zeng, J..,Zhang, Z..,Wen, L..,Tapponnier, P..,Sun, J..,...&van der Woerd, J..(2009).Co-seismic ruptures of the 12 May 2008, M-s 8.0 Wenchuan earthquake, Sichuan: East-west crustal shortening on oblique, parallel thrusts along the eastern edge of Tibet.EARTH AND PLANETARY SCIENCE LETTERS,286(3-4).
MLA	Liu-Zeng, J.,et al."Co-seismic ruptures of the 12 May 2008, M-s 8.0 Wenchuan earthquake, Sichuan: East-west crustal shortening on oblique, parallel thrusts along the eastern edge of Tibet".EARTH AND PLANETARY SCIENCE LETTERS 286.3-4(2009).