桂东民乐──双凤断裂带的活动性及其运动学特征

ACTIVITY AND KINETICS CHARACTERISTIC OF MINLE-SHUANGFENG FAULT ZONE

民乐—双凤断裂带是罗浮山—灵山近东西向断裂系西段中一条重要的断裂带。沿带或其附近历史上曾发生过３次。和多次有感地震，是一条活动断裂带．研究发现。断裂的运动学特征为右旋剪切，多处出现断错沟谷，有些在地形地貌上显示为断头沟谷与断尾沟谷。

As west section of Luofushan-Lingshan system, Minle-Shuangfeng fault zone is a important active fault zone.Three earthquakes and many felt earthquakes occurred in the fault zone and vicinity of it in history. The kinetics characteristic of it is rightlateral shear.There are some dislocation trench-valleyes at some site of the fault zone. In the midst of dislocation trench-valleyes, some dislocation trench-valleyes is shown as the beheaded or betrunked trench-valleyes.