What is the major source of heat for contact metamorphism? What is the major source of heat for contact metamorphism? heat from a nearby magma body deep burial and heat from the Earth's interior heat from the spontaneous decomposition of micas and feldspars heat from grinding and shearing on faults

heat from a nearby magma body,

Explanation:

The contact metamorphism occurs alongside the igneous intrusion and results form the high temperatures and since only a small area surrounded the intrusion and the metamorphism is limited to the surrounding zones. The major source of the heat for the contact metamorphism is the magmas and the temperature for the contact metamorphism varies about 400-1000°C.

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