Time limit of collision event of collision orogens.
碰撞造山带的碰撞事件时限的确定

In the study of orogenic belts,the time of the orogeny is important inducing the deformation and uplift of the mountains.Stille's orogenic phases have been abandoned,but many geologists use the terms such as Indosinian movement,Yanshanian orogeny and Hima