A shale metamorphosed to low metamorphic grade would become a(n)
A) amphibolite.
B) gneiss.
C) slate.
D) schist.

Question

Quizplus · Accepted Answer

A shale metamorphosed to low grade would become a slate. Shale is the parent rock of slate and when subjected to low grade metamorphism, it recrystallizes to form tightly packed, parallel alignment of clay and other minerals, resulting in the characteristic foliation of slate.

A Shale Metamorphosed to Low Metamorphic Grade Would Become A(n)