The authors consider that high - pressure epidote - blueschist , high - pressure eclogite , and ultrahigh - pressure eclogite formed at the same time , but at different depths 认为高压绿帘蓝片岩相、高压榴辉岩相、超高压榴辉岩相是在同一俯冲带内不同深度发生的同期变质作用产物。
9.
Under the hydrodynamitic condition in the outshelf heavy minerals are enriched to a certain extent . they are of horablede - epidote assemblage and contain some authigene ( pyrite and glauconite ) . the content of stable mineral is small and mineral maturity index ( trzg / hp ) is low 在外陆架水动力的作用下，重矿物有一定富集，重矿物以角闪石?绿帘石矿物组合为特征，含有一定量自生矿物(黄铁矿和海绿石) ，稳定矿物少，矿物成熟度低。
10.
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 . the zonation of the feldspars is very popular . the dark - colored minerals , such as biotite and titanite , have been highly oxidized 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。
