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Contents of Heat drives away water and gases

• Heat drives away water and gases
• High-temperature metamorphism causes minerals containing water and gases to lose them
• Degassing - loss of gas

6.2 What is the role of temperature in metamorphism?

(HEAT)

CaMg(CO3)2 CaCO3 + MgO + CO2 (gas)

(dolomite) (calcite) (periclase) (carbon dioxide)