西藏阿里札达盆地的“翘板式”形成机制

西藏阿里札达地区基本构造格架是由-系列褶皱、断裂、岩浆岩带和动力变质带组成的一套北西向构造系统，起源于晚侏罗世以来印度-欧亚板块俯冲-碰撞和陆内会聚作用。按照板块运动时间顺序，可区分出早、晚两阶段构造组合。早阶段构造组合与板块俯冲-碰撞有关，形成缝合带-陆缘弧系统；晚阶段构造组合与陆内会聚有关，形成基底断块系统。札达盆地与高喜马拉雅断块隆起存在盆-山耦合关系，藏南谷地基底断块的翘板式运动是形成盆地的主要控制因素。

Formation Mechanism of Seesaw Type in Zanda Basin, Ngari, Xizang(Tibet)

The base tectonic framework of the Zanda basin is a set of NW forward tectonic system constituted by a series of fold, fault, magmatite belt and dynamometamorphic belt, which originated from the India-Eurasian plate subduction, collision, intracontinental convergence. The early and late stages tectonic organize can be distinguished in chronological sequence of the plate movement. The early stage tectonic organize related to the plate subduction, collision forms suture belt and precontinental arc system ; The late stages tectonic organize related to intracontinental convergence forms the fault block system of basement. There are a basin range coupling between the Zanda basin and the high Himalaya region. The seesaw type tectonic movement of the basement fault block in the south of the plateau is the primary control factor for the basin forming.