________ is a nonfoliated rock formed by the contact metamorphism of fine grained rocks like shales, mudstones, or volcanics.
A)Schist
B)Marble
C)Gneiss
D)Hornfels

Question

Quizplus · Accepted Answer

Hornfels is a nonfoliated rock that is formed when fine grained rocks such as shales, mudstones, or volcanics are subjected to contact metamorphism. The heat and pressure alter the original rock, creating a new rock type with a dense and fine-grained texture. Schist and gneiss are both foliated rocks formed through regional metamorphism, while marble is a nonfoliated rock formed by the metamorphism of limestone.

________ Is a Nonfoliated Rock Formed by the Contact Metamorphism