Other mountains may be raised by earthquakes, which fracture the Earth's crust and can displace enough rock to produce block mountains.
另一些山脉可能是由地震引起的，地震使地壳断裂，并移动足够的岩石，从而形成块状山脉。
2
The NW and ne trending fault zones shape a conjugate pattern in this region, which represents a developing conjugate shear fracture system in the crust under the stress field since neotectonic time.
The unsuitable carbonitriding process, internal oxidation, over deep depth of carbonitrided layer and crust like C N compound on the surface are the main reasons to cause fracture.