Which of the following scenarios best describes the formation of hornfels?
A)Mudstones are metamorphosed by directed pressure.
B)Granite is melted and recrystallized.
C)Shales and mudstones are baked during contact metamorphism.
D)Phyllite is altered by contact with hydrothermal fluids.

Question

Quizplus · Accepted Answer

Hornfels is formed through contact metamorphism, which involves the heating of rocks by contact with an igneous intrusion. In this scenario, shales and mudstones are baked by the heat from the intrusion, causing them to recrystallize and form hornfels. The other options refer to different types of metamorphism, and are not associated with the formation of hornfels.

Which of the Following Scenarios Best Describes the Formation of Hornfels