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根据中法合作项目(1992~1995)取得的新资料,对青藏高原岩石圈结构、变形及地球动力学模式进行了探讨,研究表明:青藏高原是由不同时期从冈瓦纳古陆分离出的微板块拼合而成的.从新生代开始印度板块与欧亚板块发生高角度陆-陆俯冲,青藏高原内部发生以垂直应变为主的缩短变形,中新世以后增厚的岩石圈上地幔发生不均匀剥离,导致高原快速隆升,并使青藏高原以南北挤压为主的变形变为东西拉张为主的变形,部分地区出现火山活动.
Based on the new data obtained from the Sino-French cooperation project (1992-1995), the lithospheric structure, deformation and geodynamic model of the Qinghai-Tibet Plateau are discussed. The results show that the Qinghai-Tibet Plateau is separated from the Gondwanaland by different periods Micro-plate made of mosaic. From the Cenozoic, high-angle land-continent subduction occurred between the Indian plate and the Eurasian plate, shortening the deformation mainly in the vertical strain in the interior of the Qinghai-Tibet Plateau, unevenly peeling the upper mantle in the thickened lithosphere after the Miocene, leading to rapid plateau rapid Uplift, and to the Tibetan Plateau to the north-south extrusion-based deformation into tension-based deformation, volcanic activity in some areas.