The main diagenetic stage and relevant rock types are the Middle Proterozoic assemblage of gneissoid granodiorite-adamellite and the Sinean schistosity diorates.

主要成岩期及代表性岩类有：中元古界为片麻状花岗闪长岩-二长花岗岩，震旦纪为片理化闪长岩。

youdao

The cleavage and schistosity acted as an axial plane role in the early generation of compressed shear fold, and changed into a slip plane in the later generation of flexural slip fold.

片理（劈理）为早世代挤压-剪切褶皱的轴面片理，又成为晚世代弯滑褶皱的滑动面；

youdao

In Xuefeng arcuate structural belt of Hunan, Miaoershan ductile shear zone includes two types of tectonites, mylonite and schistosity rocks, which have different deformed characteristics.

湖南雪峰弧形构造带中的苗儿山韧性剪切带存在糜棱岩和片理化岩石两大构造岩类，各具不同的变形特征。

youdao