根据地层出现的不整合,确定一个地区发生过的地壳运动,进而划分构造旋回或构造幕,并进行全球性对比,认为地史上发生过几次强烈运动,在全球大体上是同时的.对这样一个全球性地壳运动定时律问题,李四光同志曾在某种程度上提出过批判,但并 According to the unconformities in the strata, the crustal movement in a region is identified, and then the tectonic gyration or tectonic curtain is divided and global comparison is made. In the history of the world, there are a few strong movements that are generally simultaneous in the world. A Global Crustal Movement Timing Law, Comrade Li Siguang had criticized to some extent, but