糜棱岩的重结晶作用及其显微组构

重结晶作用在糜棱岩中广泛存在，是与应变硬化相反的一种软化作用。依据形成机制和过程可以划分为动态重结晶和静态重结晶作用。动态重结晶发生在韧必菜过程中，消除晶粒内应力，并改变其大小和形态。其作用方式有颗粒边界迁移重结晶和亚晶粒旋转重结晶两种。静态重结晶发生在韧必菜晚期或期后温度升高环境中，消除晶内变形组构减少颗粒边界区域，形成稳定多边形大粒晶体。

Recrystallization and its microfabrics in mylonite

The recrystallization that widely occurred in mylonite is a softening process. According to origin mechanism and process, recrystallization in mylonite can be divided into dynamic recrystallization and static recrystallization. Dynamic recrystallization occurs during ductile deformation, removing intracrystals and changing the sizes and shapes of grains. Dynamic recrystallization can be divided into grain boundary mingration recrystallization. Static recrystallization occurs in high temperature in late deformation of post deformation, removing intracrystal deformation fabric, reducing grain boundary area, and forming stable polygonal large grain crystal.