A regional meamorphic rock that has both igneous and high-grade metamorphic characteristics is a(n)
A)schist.
B)amphibolite.
C)migmatite.
D)granitite.

Question

Quizplus · Accepted Answer

Migmatite is a unique rock that has both igneous and high-grade metamorphic characteristics. It is often formed when partially melted igneous or metamorphic rocks are subjected to further heat and pressure, causing the remaining minerals to recrystallize and form new igneous minerals. Migmatites can have a wide range of textures and appearances depending on the extent of melting that occurred during their formation. Schist and amphibolite are both high-grade metamorphic rocks, and granitite is not a recognized rock type.

A Regional Meamorphic Rock That Has Both Igneous and High-Grade