雅鲁藏布江缝合带演化过程的遥感图像统计分析

在遥感图像地质解译和线性体统计分析基础上，提取出部分反映雅鲁藏布江缝合带中段两侧块体的差异和构造演化特征．根据各种成因信息分四阶段探讨了雅鲁藏布江缝合带构造演化过程，即雅鲁藏布江缝合带两侧块体各自演化阶段、两侧块体拼接阶段、整体的水平运动阶段和升降运动阶段．

REMOTH SENSING ANALYSIS OF YARLUNG ZANGBO SUTURE ZONE IN XIZANG: ON ITS COLLISION EVOLUTION

The authors extracted geological differences betWeen the two blocks aside of the Yarlung Zangbo River, and some information about tectonic evolution of Yarlung Zangbo suture zone,which based on interpretation of remote sensing and statistical analysis. According to the research, the authors discussed the tectonic evolution of Yarlung Zangbe suture zone, which it can be divided into four stages. The first, the two blocks had each different evolution in geological history before they were matched. The second, the blocks were matched by orogenic movement of collision, which the dynamic direction was from south to north and formed some conjugate joints in NE and NW directions. The third, the monolithic region was ulteriorly forced, but the dynamic direction had a bit of change. At last, the tectonic movement became elevator tectonics in this this, which controlled modern model of river to be developed in E-W direction and topography.