习惯所称扬子地台与秦岭地槽的“槽台分界断裂”—阳—钟断裂带,实质上是由不同时期、不同活动表现的四组断裂带组成。它们是在燕山期以来的同一应力场作用下,按照各自所处的边界条件,受局部应力作用,形成各具活动特征的断裂,彼此相互复合而形成的统一构造现象。 It is customary to say that the “slot-boundary demarcation fault” -Yang-Zhong fault zone between the Yangtze Platform and the Qinling Gully is essentially composed of four groups of fault zones characterized by different periods and different activities. They are under the same stress field since the Yanshan period, and are subject to local stress according to the boundary conditions they are in to form a unified structure formed by the combination of faults and activities with each other.