metamorphic facies group

例句：

1. 1. Themetamorphic facies group of rocks isa key to understanding the geological historyof the region.
   岩石的变质岩相组是理解该地区地质历史的关键。
2. 2. The studyof metamorphic facies groups has ledto new insights into the formation and evolutionof rocks.
   对变质岩相组的研究为岩石的形成和演化提供了新的见解。
3. 3. Themetamorphic facies group plays a crucialrole in shaping the landscape of theregion.
   变质岩相组在塑造该地区景观方面起着至关重要的作用。