Metamorphic reaction
Chemical reaction between minerals within metamorphic rock
From Wikipedia, the free encyclopedia
In geochemistry, 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.[1]
Examples include the production of talc under varied metamorphic conditions:
- serpentine + carbon dioxide → talc + magnesite + water
- chlorite + quartz → kyanite + talc + water
