岩体概况红区岩体位于喜马拉雅褶皱带北侧,沿雅鲁藏布江深断裂带产出,略作东西方向延伸,连续长达41公里。岩体大致可以分为三段,东段最窄,西段最宽,皆呈东西向展布,中段呈北西西向延伸,遂形成本岩体平面上的反“S”状形态(图1—B)。本岩体两侧的接触面均向南倾,为一向南倾斜的单斜岩体。接触面的倾角从20°—80° Rock Profile The red zone rock mass is located on the north side of the Himalayan fold belt and is produced along the deep fault zone of the Brahmaputra. It extends slightly east-west for a succession of 41 km in length. The rock mass can be roughly divided into three sections, the narrowest in the east section and the widest in the west section. Both show east-west distribution and the middle section extends from northwest to west, thus forming the anti-S shape in the rock mass plane 1-B). The contact surfaces on both sides of this rock body all lean to the south, being a monoclinic rock body that has been inclined to the south. The inclination of the contact surface ranges from 20 ° to 80 °