Question
Geology Question on Petrology
In the AFM diagram below, W, X, Y and Z sepresent four pelitic assemblages. Which combinations of assemblages contain the same mineral phases in equilibrium in the staurolite zone?
A
(X-Y) & (W-Z)
B
(X-W) & (Y-Z)
C
(X-Z) & (Y-W)
D
(W-X-Y) & (Z)
Answer
(X-W) & (Y-Z)
Explanation
Solution
The correct option is (B): (X-W) & (Y-Z)