The amphiboles of retrogressive metamorphic stages in the granulite and eclogite were mainly formed under the condition of amphibolite facies of medium pressure facies series.
麻粒岩和榴辉岩中退变质阶段的角闪石主要形成于中压相系角闪岩相的温压条件。
2
The characteristics of three metamorphic stages are as follows: before the eclogite-facies stage which is middle-pressure epidote amphibolite facies;