Multiple Choice
A sillimanite hornfels would ________.
A) be formed at the highest grade of regional metamorphism
B) lie on the outermost edge of a contact aureole where hornfels are preserved
C) lie entirely within the core of the contact aureole occupied by the high grade
D) usually form from the complete subduction of ocean crust deep into the mantle
Correct Answer:
Verified
Correct Answer:
Verified
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