Which of the following describes the progression of rock types through increasing metamorphic grade?
A)shale Ò slate Ò phyllite Ò schist
B)basalt Ò andesite Ò rhyolite Ò granite
C)sandstone Ò gneiss Ò hornfels Ò zeolite
D)migmatite Ò slate Ò eclogite Ò schist

Question

Quizplus · Accepted Answer

The progression of rock types through increasing metamorphic grade starts with shale, which transforms into slate, then phyllite, and finally schist. This is a common sequence of metamorphic rocks resulting from low- to medium-grade metamorphism.

Which of the Following Describes the Progression of Rock Types