区域动力热流变质作用

因主要经受中晚元古期中压区域动力热流变质作用，形成自南向北递增变质带，即低绿片岩相高绿片岩相低角闪岩相。

During the middle-later Proterozoic , regional dynamothermal metamorphism formed a northward progressive metamorphic zone , such as lower greenschist facies higher greenschist facies lower amphibolite facies .

贡山地区存在两类特殊的区域动力热流变质作用&低压热轴型、减压增温型。

There are two types of special regional dynamothermal metamorphism in the Gongshan Mountain area , ie , low P hot axis type and P decrease T increase type .

早元古代星子群遭受吕梁期以低角闪岩相为主的区域动力热流变质作用，变质温度约为530－600℃，压力约为400－570MPa。

The early Proterozoic Xingzi Group was subjected to regional dynamothermal metamorphism of Luliang period , dominated by low amphibolite factes with temperature 530-600 ℃ and pressure 400 - 570 MPa .