区内大别杂岩的主体是由大别地块两次向南仰冲的构造滑动的同构造期断层构造岩组成,以后又有后构造期推复构造迭加。每次滑动都形成三种构造岩,其中最重要的一种是以往被称作“角砾混合岩”的“混杂岩”,“角砾混合岩”本身,是一种含砾糜稜岩,但考虑到和它共生的还有铁镁一超铁镁质以及各种片麻岩的较大岩块,因而具有混杂岩的性质,将它作为混杂 The main body of the Dabie complex in the area is composed of tectonic-period fault tectonic rocks sliding to the south by overthrusting in the south of the Dabie area, and later superimposed by the post-tectonic period. Three types of tectonites are formed for each slip, the most important of which is the “melange” previously known as “breccia mixed rock” itself, which is a gravel mylonite, but is considered To its symbiosis with iron-magnesium-ultra-magnesia and large blocks of gneisses, it has the property of melange, as a mixed