特提斯洋壳在青藏隆升中所起的作用

Effects of the Tethyan Oceanic Crust on the Qinghai_Tibet Uplift

地幔对流使特提斯洋壳显示为刚性的整体性，并以“抽屉式”插入到青藏陆壳之下，使之第一次隆升。之后受四川盆地、鄂尔多斯盆地和柴达木盆地刚性地块的阻抗，发生强烈的褶、断、叠作用，使青藏陆壳第二次隆升，同时，莫霍面下沉、褶断，从而形成了今天整个青藏高原的地质特征和地理形态。

Mantle convection made the Tethyan oceanic crust display an entirety and rigidity, and caused it to plunge in a “drawer style” beneath the Qinghai_Tibet continental crust. As a result, the first uplift event occurred. The Tethyan oceanic crust mentioned above underwent intensive folding, fracturing and overprinting because of impediment caused by the rigid massifs in the Sichuan,Ordos and Qaidam basins. These resulted in not only the second folding, fracturing and uplifting of the Qinghai-Tibet continental crust, but also subsidence, folding and fracturing of the Moho. Therefore the geological and geographical features of the present Qinghai-Tibet plateau were formed.