首页 | 本学科首页   官方微博 | 高级检索  
     检索      

四川汶川Ms 8.0地震地表破裂构造初步调查与发震背景分析
引用本文:董树文,张岳桥,龙长兴,吴珍汉,安美建,张永双,杨农,陈正乐,雷伟志,施炜,石菊松.四川汶川Ms 8.0地震地表破裂构造初步调查与发震背景分析[J].地球学报,2008,29(3):392-396.
作者姓名:董树文  张岳桥  龙长兴  吴珍汉  安美建  张永双  杨农  陈正乐  雷伟志  施炜  石菊松
作者单位:中国地质科学院,北京100037;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081;中国地质科学院地质力学所,北京100081
基金项目:中国地质科学院地质力学研究所基本科研项目(编号:DZLXJK200807)
摘    要:5月16-24日对川西汶川大地震震中区的发震断裂地带进行的实地考察和初步测量,获得了宝贵的地表变形和同震位移最数据资料,证实汶川地震属于逆冲断裂型地震,主破裂沿映秀-北川断裂带发育,前山地区滑灌县-安县断裂也有地表破裂,同震位移量在3~5m.汶川地震产牛的地表破裂构造和运动性质显示明显分段特性,映秀-北川段以挤压逆冲为主,而北川以北段则伴有显著的右旋走滑分量.

关 键 词:汶川地震  逆冲断裂  地表破裂  发震背景

Surface Rupture Investigation of the Wenchuan Ms 8.0 Earthquake of May 12th, 2008, West Sichuan, and Analysis of Its Occurrence Setting
DONG Shu-wen,ZHANG Yue-qiao,LONG Chang-xing,WU Zhen-han,AN Mei-jian,ZHANG Yong-shuang,YANG Nong,CHEN Zheng-le,LEI Wei-zhi,SHI Wei and SHI Ju-song.Surface Rupture Investigation of the Wenchuan Ms 8.0 Earthquake of May 12th, 2008, West Sichuan, and Analysis of Its Occurrence Setting[J].Acta Geoscientia Sinica,2008,29(3):392-396.
Authors:DONG Shu-wen  ZHANG Yue-qiao  LONG Chang-xing  WU Zhen-han  AN Mei-jian  ZHANG Yong-shuang  YANG Nong  CHEN Zheng-le  LEI Wei-zhi  SHI Wei and SHI Ju-song
Institution:Chinese Academy of Geological Sciences; Beijing 100037;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081;Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081
Abstract:Field investigation and measurements of the surface ruptures were conducted immediately after the occurrence of the Wenchuan Ms 8.0 Earthquake of May 12th,2008.The data of surface deformation and co-seismic displacements obtained during this excursion confirm that the Wenchuan earthquake belongs to the reverse faulting type,the surface ruptures occurred mostly along the Yingxiu-Beichuan fault zone and partly along the Guanxian-Anxian fault zone.The surface rupture zone produced by the Wenchuan earthquake exhibits characteristic segmentation behavior,its southern segment between the Yingxiu Township and Beichuan county is reverse faulting dominated,while the segment north of Beichuan county shows important dextral strike-slip component.
Keywords:Wenchuan earthquake  reverse faulting  surface rupture  earthquake occurrence setting
本文献已被 万方数据 等数据库收录!
点击此处可从《地球学报》浏览原始摘要信息
点击此处可从《地球学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号