How would you correctly refer to the metamorphic grade of a rock that contains abundant chlorite as its highest temperature mineral such as a greenschist or phyllite? A) intermediate grade B) low grade 600° C D) "C grade"

Question

How would you correctly refer to the metamorphic grade of a rock that contains abundant chlorite as its highest temperature mineral such as a greenschist or phyllite?
A) intermediate grade
B) low grade < 200° C
C) high grade > 600° C
D) "C grade"

Quizplus · Accepted Answer

Rocks containing abundant chlorite, such as greenschists or phyllites, are indicative of low-grade metamorphism, which occurs at temperatures generally less than 200° C.

How Would You Correctly Refer to the Metamorphic Grade of a Rock