大陆地堑的构造运动和地貌特点,一般言之,在这里是根据一些特殊属性的研究与其它构造现象相对照而叙述的。所有地堑都是由两条收敛的顺着倾斜方向滑动的断层所组成的,这些将一些下滑的楔状岩块分割开来。这些被分割的地壳单位常常向着地堑方向向上弯曲。这种构造格架作为一个整体形成了一种穹窿状的上穹运动,同时地堑一般沿着其脊线将这种穹窿裂开。在许多场合下,这种楔形岩块都被许多层状倾斜滑动断层 The tectonic movements and geomorphic features of the graben in the mainland are generally described here according to the study of some special attributes in contrast with other tectonic phenomena. All grabens are made up of two converging faults sloping along the sloping direction, which separate some of the falling wedges. These divided crustal units often bend upward toward the graben. This tectonic framework as a whole formed a dome-shaped dome movement, and the graben cut the dome generally along its ridges. On many occasions, these wedge-shaped blocks have many layered sloping slip faults