地槽的理论问题一直持续到现在未能解决。李四光先生指出:“更重要的问题是在地球上为什么发生了那些地槽?它为什么恰巧出现于它所在的地方?为什么所有地槽都占有一个长条形的地带?”李春昱先生也指出:“世界上的地层沉积有些地方较厚,另一些地方则比较薄,而且较厚的地层往往成条带状分布。这是客观存在,为地质工作者所承认的事实。 The theoretical issue of the trough continued until now can not be resolved. Mr. Li Siguang pointed out: “The more important question is why those earth troughs occurred on the earth, why did it occur in the place where it happened and why all the troughs occupy a strip-shaped area?” Mr. Li Chunyu also pointed out: Some of the world’s stratigraphic deposits are thicker, while others are thinner, and thicker strata tend to be striped, which is an objective reality acknowledged by geologists.