Which of the Following Best Describes the Conditions of Contact

question 15

Multiple Choice

Which of the following best describes the conditions of contact metamorphism?

• A) Depths are so deep and temperatures are so high that the rocks begin to partially melt.
• B) Pressures are fairly low, the rock is in the upper part of the crust, the heat for baking the neighbouring rocks is supplied quickly from the intrusion of a nearby magma body.
• C) Pressures are very high, the rock is deeply buried, and temperatures are raised gradually by Earth's internally generated heat.
• D) Heat is generated very quickly by shearing and mechanical movements along faults.

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