Especially four thousand years ago that the crustal movements of continental collision event, not only make the Douro mainland area increased more than one times, but also brought many variables.
Because a collision orogenic belt has a complicated crustal structure, new methods have to be adopted for thermal state analysis.
由于碰撞造山带具有的地壳结构的复杂性，必须采用新的研究方法来分析其热结构。
3
The formation of the Qinghai-Tibet Plateau was not caused by the collision between India plate and Eurasia plate, but by intraplate basin-mountain coupling driven by lower crustal flow.