能形成所谓“肘状拐弯”的断错水系,必是先有冲沟,后被断错的水系。而先有断层,后溯源侵蚀发育的冲沟则不能形成”肘状拐弯“的断错水系。因此,断层一侧沟的长度—断尾沟长度与断层年龄无关,最终与断层运动速率之间的关系也不易确定。 A broken water system that forms the so-called “elbow bend” must be a water system that first has a gully and then is interrupted. However, the faults with the first faults and the eroding ditches with traceable source erosion can not form the broken water system of “elbow bend”. Therefore, the length of one side of the fault - the length of the tailrace trench has nothing to do with the age of the fault, and ultimately the relationship between the velocity of the fault and the fault is not easy to determine.