刘黄沟流域内具有丰富的土砂石块和陕峻的地形，又遇有暴雨，是发生泥石流的原因。
The plenty of loose solid materials, precipitous slopes, and the freguenf rain storms, are the main reasons for the formation of the debris flow in the valley.
岩脉的分布受断层构造的控制，刘家沟石英闪长岩体的展布特点说明其就位受近南北向和北西向断层的控制。
The characteristic of quartz-diorite in Liujiagou shows that it is controlled by the compound positions of the north-west striking and north-south striking faults.
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