初论青藏地区的“印支运动”  

Discussion on the Indosinian movement in Qinghai-Tibet area, China

作　　者：杨广全[1] 王根厚[1,2] 

机构地区：[1]中国地质大学,北京100083 [2]中国地震局地球物理研究所,北京100083

出　　处：《地质通报》2009年第9期1188-1190,共3页Geological Bulletin of China

基　　金：中国地质调查局1:5万西藏双湖区角木日地区4幅区域地质调查项目(编号:1212010818014)资助

摘　　要：印支运动是指发生于晚三叠世—早侏罗世阶段的造山运动,是青藏地区又一次有划时代意义的重大变革。青藏地区的印支运动可划分为2幕,第Ⅰ幕指晚三叠世前诺利期的构造运动,第Ⅱ幕指发生于晚三叠世瑞利期与中侏罗世前巴柔期之间的构造运动。班公湖-怒江带以北,表现为强烈的造山运动,形成规模巨大的印支造山带。Indosinian movement refers to the orogenic movement during Late Triassic to Early Jurassic,it is another major epoch-making evolution in Qinghai-Tibet region. Indosinian movement of the Qinghai-Tibet region can be divided into two phases, phase Ⅰ refers to tectonic movement happened during early Norian period Late Triassic; phase II refers to the tectonic movement which occurred between the Late Triassic Rayleigh period and Middle Jurassic early Bajociant period. The movement performs in the form of strong orogeny north of Bangonghu-Nujiang suture, which leads to large-scale Indosinian orogenic belt.

关 键 词：青藏地区 印支运动 班公湖-怒江缝合带 

分 类 号：P542[天文地球—构造地质学]