基于RS、GIS的东喜马拉雅南迦巴瓦峰地区断裂构造的定量研究  

QUANTITATIVE ANALYSIS ON FAULT STRUCTURES BASED ON RS,GIS IN THE NAMJAGBARWA AREA,EASTERN HIMALAYAS

作　　者：张明华[1] 

机构地区：[1]桂林工学院资源与环境工程系,广西桂林541004

出　　处：《大地构造与成矿学》2007年第4期418-423,共6页Geotectonica et Metallogenia

基　　金：交通部西部交通科技项目(200231800050);地质资源与地质工程广西人才小高地创新团队项目(桂教人[2005]80号)资助

摘　　要：东喜马拉雅南迦巴瓦峰地区地质构造十分复杂,对该区板块缝合带的空间位置问题,长期以来,一直认为沿雅鲁藏布江呈弧形展布。笔者以ETM+为主要信息源,以遥感与GIS为技术支撑,对南峰地区的断裂构造进行了详细的遥感解译分析,从构造统计分析的角度对断裂构造进行定量研究,从分维值及趋势值的空间分布及变化特征分析,认为缝合带的南东段、北段大致沿雅鲁藏布江展布,而北西段位于雅鲁藏布江的北西侧,沿东久-米林(断裂带)展布,这也与近几年来开展了1∶25万区域地质调查获得的新认识相一致。The collision suture between the Indian and Eurasian plates has been considered to extend along the Brahmaputra River in an arc shape. Based on improved thematic mapping （ETM ＋ ） images and remote sensing （RS） and geographic information system （GIS） techniques, in combination with statistics and fractal dimension methods, this study presents a comprehensive interpretation analysis on the fault structures of the Namjagbarwa region in the eastern Himalaya. Our new results suggest that the southeastern and north segments of suture zone occur along the Brahmaputra River, whereas its northwestern segment extends along the Dongjiu-Milin fault zone, northwest to the Brahmaputra River. This conclusion is consistent with the newest results of 1：250000 regional geology survery of the Namjagbarwa region in recent years.

关 键 词：南迦巴瓦峰 缝合带 断裂构造 遥感和GIS ETM+影像 

分 类 号：P542[天文地球—构造地质学] P628[天文地球—地质学]