Abstract: Cangdong fault is a discordogenic fault with complicated internal structure. As far as weknow、it has two distinct fault systems which were formed by two different structural stressfields. It formed the reverse fault or "normal flower structure" fault system by press-wrenching in Pretertiary.It formed an extentional normal-fault system by spreading stress fields inTertiary.The texture of Cangdong fault becomes very complex because of time and spacecompounded stack of two distinct structural stress fields.

Key words: structure, types, tectonic movement, fracture, tectonic anomaly, origin

摘要： 沧东断裂是个内幕结构十分复杂的深大断裂,是在两种不同构造应力场作用下形成的两类性质不同的断裂体系.其前第三纪因受压扭作用而在现为逆断层或花状构造断裂系;第三纪受扩张应力场制约则表现为张性正断层.上述两组性质不同的构造应力场在时空上的复合叠加,使沧东断裂的结构变得异常复杂.

关键词: 构造, 类型, 构造运动, 断裂, 成因, 构造异常