Later-stage block uplift formed new fault scarp, the previous pediment surface and the wide valley were uplifted, and the gully started retrogressive erosion from the scarp to produce a terrace.

• 后期的断块隆升形成新的断层崖，原先的麓原面和宽谷被抬升，冲沟从断层崖开始溯源侵蚀形成阶地。