摘要
龙门山南段宝兴地区存在着多次推覆和多层滑覆现象,以及推覆滑覆叠加样式。该区存在着印支运动的遗迹,推覆构造在大部分地区切割了印支运动不整合面。造山过程经历了褶皱和推覆作用两个阶段,经历了印支期和喜马拉雅期造山运动。
This paper suggests a polyperiod nappes and poly-layered slipping block structure existed inthe southern segment of Longmen Mountains, as well as a supperpositional model between those twokinds of structures. Trails of the Indo-Sinian orogenies may be pointed out. Frontal thrusts of thenappes may cut off the Indo-Sinian ?onformity surfaces within this region. The orogenic process un-derwent both folding and napping stages. It is the Indo-Sinian and Himalayan Movements.
关键词
推覆
滑覆
印支运动
造山作用
nappe
slipping-block
Indo-Sinian Movement
orogeny
