Multiple Choice
Consult the figure below.Compared with amphibolite metamorphic facies,greenschist facies 
A) consist of lower-grade rocks.
B) consist of higher-grade rocks.
C) involve partially melted rocks.
D) have the same grade but a different chemistry due to different protoliths.
Correct Answer:
Verified
Correct Answer:
Verified
Q27: Potassium feldspar reacts with water to form
Q28: Two common metamorphic rocks that typically lack
Q29: A protolith<br>A) is always metamorphic rock.<br>B) is
Q30: Metamorphic grade describes the intensity or degree
Q31: Retrograde metamorphism will not occur unless an
Q33: Thermal (contact)metamorphism produces<br>A) foliated rocks only.<br>B) nonfoliated
Q34: Which of the following statements is false?
Q35: _ commonly serves as a protolith in
Q36: Clay minerals within a buried body of
Q37: The mineral assemblage within metamorphic rock is<br>A)