A shale metamorphosed to medium metamorphic grade would become a(n)
A) slate.
B) gneiss.
C) amphibolite.
D) schist.

Name: A shale metamorphosed to medium metamorphic grade would become a(n) A) slate. B) gneiss. C) amphibolite. D) schist.
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Question

Quizplus · Accepted Answer

Schist is the typical rock that forms from the metamorphism of shale to medium grade. The increase in temperature and pressure during metamorphism causes the minerals within the shale to recrystallize and align, forming a foliation that is characteristic of schist.

A Shale Metamorphosed to Medium Metamorphic Grade Would Become A(n)