So metamorphisms play an important role in the formation of metamorphic rocks. What kinds of metamorphisms are involved in the formation of metamorphic rocks in this area.

 
  • 这样看来变质作用在变质岩的形成中扮演着极其重要的角色。这个地区的变质岩的形成都涉及到那些变质作用呢?
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