Abstract: Five kinds of fault rocks and thier structures concerned have been discribed respectively along the Tancheng-Lujiang fault zone at the recent erosion surface. It is clear that the two-phase deformation on the sence of mechanics commonly in various scales, in which both brittle and ductile deformation components are presented through faulting. On the basis of these inverstigations, a model for earthquake generation in the large fault zone has been discussed.

Key words: Brittle, Ductile, Two-phase deformation, Strain softening

摘要： 本文主要以郯庐断裂带现代侵蚀面上五种不同类型的断裂构造和断层岩石为例,论述大断层带中岩石变形的二相性特征,包括机械意义的“韧性相”和“脆性相”应变组分在变形过程中的作用和意义。在此基础上探讨一种可能的地震成因方式。

关键词: 脆性, 韧性, 二相变形, 应变软化