Surface rupture and hazard of Wenchuan Ms 8.0 earthquake, Sichuan, China
Longmen Shah is located the special joint between the Qinghai-Tibetan Plateau in the west and the Yangtze craton in the east. Consisting of a series of parallel imbricated thrust, it develops, from the west to the east, the Maoxian-Wenchuan, Yingxiu-Beichuan and Pengxian-Guanxian faults. Wenchuan Ms 8.0 earthquake is a thrust with strike-slip type, and surface ruptures are located in Yingxiu-Beichuan fault zone and Pengxian-Guanxian fault zone. Based on the geological background ,tectonic setting, the active tectonics of Longmen Shan and surface ruptures of the Wenchuan earthquake, a dynamical model to illustrate possible links between surface processes and upward extrusion of lower crustal flow channel at the eastern margin of the Tibetan plateau have been studied, and the results is the material in lower crust in the Longmen shan moving as nearly-vertical extrusion and uplift, resulting in the surface rate of tectonic movement differing according to depth rate as well as the occurrence of large shallow Wenchuan earthquake.
Li Yong Huang Runqiu Alexander L.Densmore Zhou Rongjun
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technol State Key Laboratory of Geo-hazard Prevention & Geo-environment Protection,Chengdu University of Tec Institute of Hazard and Risk Research and Department of Geography,Durham University,Durham,UK Institute of Earthquake Engineering,SeismologicaI Bureau of Sichuan Province,610041
国际会议
International Symposium and The 7th Asian Regional Conference of IAEG(国际工程地质与环境协会年会暨第七届亚洲工程地质会议)
成都
英文
100-112
2009-09-09（万方平台首次上网日期，不代表论文的发表时间）