SPATIAL RELATIONSHIPS BETWEEN SURFACE RUPTURES IN THE Ms 8.0 WENCHUAN EARTHQUAKE, THE LONGMEN SHAN REGION, SICHUAN, CHINA

被引：7
|
作者：
Li Yong [1 ]
Zhou Rongjun [2 ]
Densmore, Alexander L. [3 ,4 ]
Cao Shuyou [5 ]
Liu Yuping [6 ]
机构：
[1] Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Sichuan, Peoples R China
[2] Seismol Bur, Inst Earthquake Engn, Chengdu 610041, Sichuan Provinc, Peoples R China
[3] Univ Durham, Inst Hazard Risk & Resilience, Durham, England
[4] Univ Durham, Dept Geog, Durham, England
[5] Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610064, Sichuan, Peoples R China
[6] Chengdu Inst Geol & Mineral Resources, Chengdu 610081, Sichuan, Peoples R China
来源：
JOURNAL OF EARTHQUAKE AND TSUNAMI | 2011年 / 5卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Surface ruptures; Wenchuan Earthquake; Longmen Shan region; LOWER CRUSTAL FLOW; TIBETAN PLATEAU; EASTERN MARGIN; DEFORMATION; BASIN; FAULT; BELT; KINEMATICS; UPLIFT;
D O I：
10.1142/S1793431111001121
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
During the M-s 8.0 Wenchuan Earthquake of May 12, 2008, three distinct faults in the Longmen Shan along the eastern margin of the Tibetan Plateau ruptured. We have carried out detailed field geological mapping on these faults (the Yingxiu-Beichuan, the Pengxian-Guanxian, and the Xiaoyudong Faults), as well as the minor Leigu Fault, using GPS and total station surveys. The surface rupture of the Wenchuan Earthquake consists of two margin-parallel thrust faults linked by the Xiaoyudong tear fault. By comparing the features of the surface rupture of the faults, the spatial relationships between the different surface ruptures can be determined. It is clear that the margin-parallel thrust faults are linked at depth, forming an imbricated thrust linked by a tear fault.
引用
收藏
页码：329 / 342
页数：14
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