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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

文献类型：期刊论文

作者Liu-Zeng, J.1; Zhang, Z.1; Wen, L.1; Tapponnier, P.2; Sun, J.1; Xing, X.1; Hu, G.3; Xu, Q.1; Zeng, L.3; Ding, L.1
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2009-09-15
卷号286期号:3-4页码:355-370
关键词Wenchuan earthquake Longmen Shan thrust belt Tibetan plateau surface rupture co-seismic slip partitioning out-of-sequence thrusting earthquake
ISSN号0012-821X
DOI10.1016/j.epsl.2009.07.017
文献子类Article
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.
WOS关键词INDIA-ASIA COLLISION ; LONGMEN SHAN ; KOKOXILI-EARTHQUAKE ; CHINA ; PLATEAU ; DEFORMATION ; SLIP ; GROWTH ; MARGIN ; UPLIFT
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000271358300002
出版者ELSEVIER SCIENCE BV
资助机构Chinese Academy of Sciences(KZCX2-YW-134) ; Chinese Academy of Sciences(KZCX2-YW-134) ; National Science Foundation of China(40672141 ; National Science Foundation of China(40672141 ; MOST ; MOST ; 40625008) ; 40625008) ; Chinese Academy of Sciences(KZCX2-YW-134) ; Chinese Academy of Sciences(KZCX2-YW-134) ; National Science Foundation of China(40672141 ; National Science Foundation of China(40672141 ; MOST ; MOST ; 40625008) ; 40625008) ; Chinese Academy of Sciences(KZCX2-YW-134) ; Chinese Academy of Sciences(KZCX2-YW-134) ; National Science Foundation of China(40672141 ; National Science Foundation of China(40672141 ; MOST ; MOST ; 40625008) ; 40625008) ; Chinese Academy of Sciences(KZCX2-YW-134) ; Chinese Academy of Sciences(KZCX2-YW-134) ; National Science Foundation of China(40672141 ; National Science Foundation of China(40672141 ; MOST ; MOST ; 40625008) ; 40625008)
源URL[http://ir.iggcas.ac.cn/handle/132A11/70546]  
专题中国科学院地质与地球物理研究所
通讯作者Liu-Zeng, J.
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100085, Peoples R China
2.Inst Phys Globe Strasbourg, F-75252 Paris 05, France
3.Chinese Acad Sci, Inst Geol, Beijing 100037, Peoples R China
4.Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA
5.US Geol Survey, Pasadena, CA 91106 USA
6.Inst Phys Globe Strasbourg, F-67084 Strasbourg, France
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]. EARTH AND PLANETARY SCIENCE LETTERS,2009,286(3-4):355-370.
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),355-370.
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):355-370.

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