Which of the following lists of foliated rock types is arranged according to increasing coarseness of texture, also going from low-grade to high-grade metamorphism?
A) slate, phyllite, gneiss, schist
B) slate, amphibolite, schist, phyllite
C) schist, phyllite, gneiss, slate
D) slate, phyllite, schist, gneiss
E) schist, phyllite, amphibolite, gneiss

Question

Quizplus · Accepted Answer

The correct sequence from low-grade to high-grade metamorphism, which also corresponds to increasing coarseness of texture, is slate, phyllite, schist, and gneiss. This sequence reflects the changes in mineral size and arrangement as metamorphic grade increases.

Which of the Following Lists of Foliated Rock Types Is