Consult the figure below.Compared with amphibolite metamorphic facies,the minerals in greenschist facies occur in
A) lower-grade rocks.
B) higher-grade rocks.
C) partially melted rocks.
D) the same grade but a different chemistry due to different protoliths.

Question

Consult the figure below.Compared with amphibolite metamorphic facies,the minerals in greenschist facies occur in 
A) lower-grade rocks. 
B) higher-grade rocks. 
C) partially melted rocks. 
D) the same grade but a different chemistry due to different protoliths.

Quizplus · Accepted Answer

The greenschist facies represents a lower grade of metamorphism compared to the amphibolite facies, which means that the minerals in the greenschist facies occur in lower-grade rocks.

Consult the Figure Below