Abstract: Paleomagnetic results from the both sides of Honghe fault zone have shown that the Yangzi block has been united with the Qiangtang terrane since Cretaceous. The Qinghai-Tibet Plateau was a tectonic composite consisting of four terranes named Kunlun, Qiangtang, Lhase and Himalayans from north to south. These terranes were the component parts of Laurasian, Cathaysia and Gondwana, respectively, in Late Paleozoic, having different history of development. The collision and matching of the Lhase terrane with the Qiangtang terrane have caused the formation of the tectonic framework of Eurasian plate. On the other hand, the collision and matching of himalayan terrane and Indian plate have given rise to the uplifting of Qinghai-Tibet Plateau, which caused sinistral strike-slip movement of the blocks of Eurasian plate along the pre-existing faults. This process continued till now.

Key words: Qinghai-Tibet Plateau, Tectonic composite, Collision and matching Sinistral strike-slip

摘要： 红河断裂带两侧古地磁结果表明,羌塘地体与扬子地台至少从早白垩世以来已连接为一个整体。青藏高原是由四个发育历史不同的地体组成的大地构造复合体,在晚古生代它们分别是劳亚古陆、华夏复合古陆和冈瓦纳古陆的组成部分。拉萨地体与羌塘地体碰撞拼合形成欧亚板块构造格局。喜玛拉雅地体、印度板块与欧亚板块碰撞拼合、推挤,使青藏高原隆起,并使欧亚板块的块体沿已存在的断层产生左行走滑,这种作用至今仍在继续。

关键词: 青藏高原, 大地构造复合体, 碰撞拼合, 左行走滑