断裂带中已存在的角闪岩相岩石已与绿泥石新形成的逆行绿片岩相叠加。
The pre-exist amphibolite facies rocks in the fracture belt have been superimposed by retrograde green-schist facies with neoformation of chlorite.
它在遭受角闪岩相变质作用之前，曾经历过低变质蛇纹石化阶段（形成蛇纹岩）。
Before it underwent metamorphism of amphibolite facies, it had experienced low-grade serpentinization and formed into serpentinite.
容矿围岩变质级别达到角闪岩相和麻粒岩相。
The host rocks were metamorphosed to the amphibolite and granulite facies.
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