The former three stages reflect the major process of eclogite facies metamorphism and the latest stages the light overprinting of greenschist facies retrometamorphism at the shallow level of crust.

前三个阶段反映岩相变的主要过程。一阶段，反映岩在地壳浅部层次绿片岩相环境下遭受轻微的叠加改造。