Concepts of metamorphism, metamorphic reaction, prograde and retro – metamorphisms.
变质岩的一般概念、变质反应、进变质和退变质。
英语百科
Metamorphic reaction
A metamorphic reaction is a chemical reaction that takes place during the geological process of metamorphism wherein one assemblage of minerals is transformed into a second assemblage which is stable under the new temperature/pressure conditions resulting in the final stable state of the observed metamorphic rock.