The microscopical observation proves that the main types of granitoid rocks are granodiorite and quartz monzodiorite, and the enclave is mainly monzodiorite. The rock-forming minerals are mainly k-feldspar, plagioclase, amphiboie, biotite, quartz, magnetite, titanite, apatite, epidote, etc.

通过对本区花岗岩类样品进行显微观察研究，知其主要的岩石类型为花岗闪长岩、石英二长闪长岩，其中的岩石包体主要为二长闪长岩，其造岩矿物为钾长石、斜长石、角闪石、黑云母、石英、磁铁矿、榍石、磷灰石和绿帘石等，长石中环带现象比较常见，黑云母、榍石等暗色矿物颜色较深，表明其氧化程度较高。