第33卷第4期
地质通报
Vol.33、No.4
2014年4月
GEOLOGICAL BULLETIN OF CHINA
Apr.,2014
青海玉树地区主要活动断裂的遥感影像解译
及构造活动性
李家存,吴中海2,张铎3,刘晓东4
LI Jia-cun'-, WU Zhong-hai', ZHANG Duo, LIU Xiao-dong
1首都师范大学资源痳境与赦游学院,北京100048;2.中国地质科学院地质力学研究所,北京100061;
3.首都师范大学三维信息获取与应用教育部重点实验室,北京100048;
4.长春市天测科技有限公司,吉林长春100026
1. College of Resource Enuironment and Tourism, Capital Normal University, Beijing 100048, China
2. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;
3. Key Laboratory of 3D formation Acquis t on and Application, Ministry of Education,
Capital Normal University, Beijing 100048, China
4. Changchun fiance Technology Co, Ltd. Changchun 100026, Jilin, China
摘要:综合利用IRS-P5、ALOS、 Google earth等高分辨率遥感彩像及 ASTER DEV资料,结合前人研究成果和野外实地考察,
总结玉树地区断裂带的遥感影像解译标志,狭取其空间展布和分段情况,对断裂的性质和活动性进行了详细的分析。研究中
共解译活动断裂18条,总体呈Y字型分布。通过错断水系位错量的量测、三维地貌对比、地形起伏度和历史地震对比等多种
分析,断裂活动强度可以分为强烈、中等和弱活动3个等级,其中当江一多彩断裂、玉树断裂和巴塘断裂是玉树断裂带内最主
要的活动断裂
关键词:
遥感解译;活动断裂带;玉树晣裂带;断裂活动性
中图分类号:P553;P627文献标志码:A文章编号:1671-2552(2014)04-0535-16
LIJ C, Wu Z H, Zhang D, Liu X D. Remote sensing image interpretation and tectonic activity study of the main active faults
in Yushu area, Qinghai Province. Geological Bulletin of China, 2014, 33(4): 535-550
Abstract: Based on the high resolution remote sensing images such as IRS-P5, ALOS, Google earth and ASTER DEM, in combina
tion with previous research results and detailed field survey, the authors summed up the image interpretation criteria, obtained the spa
ial distribution and subsections of Yushu faulted zone, and analyzed in detail fault properties and activities. It is shown that there are
18 acte auls in the zone, and the spatial dist on paten of Yushu faulted zone is in the shape of Y.On the basis of the mea
surement of ofset strearns dislocation, three dimensional landform contrasts, topographic relief and historical earthquakes analysis, the
authors divided the intensity of fault activities into intense activity, moderate activity and weak activity. Dangjiang-duocai fault,
Yushu fault and Batang fault are the most intense active faults in the area
Key words: remote sensing interpretation; active fault zone; Yushu faulted zone; fault activity
2010年4月14日7时49分青海省玉树疲族自甘孜一玉树断裂带上,位于巴颜喀拉活动块体的南
治州玉树县发生Ms7.1级地震,震源深度33km,震端叫。地震发生后5d左右,共发生50多次余震,使得
中位置为郭央烟宋多(N33.271°、E96.629°),发生在整个地震事件共造成2000多人死亡,上万人无家可
收稿日期:2013-12-27;修订日期:2014-01-21
资助项目:中国地质调査局项目(编号:1212011120163)
作者简介;李家存(1974-),男,博土,副教授,从事遥感技术应用与研究。E-maillijiacun163.com
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