Where do most metamorphic changes to rock occur?

Answer 1

Metamorphic rocks form deep in the earth where high temperature, great pressure, and chemical reactions cause one type of rock to change into another type of rock. Metamorphic rocks begin to form at 12-16 kilometers beneath the earth's surface. They can also form because of small pools of magma rising through the crust.

Answer 2

Metamorphic changes to rock most commonly occur deep within the Earth's crust, where high temperatures and pressures can alter the mineralogy and texture of rocks. This process usually takes place at depths of several kilometers below the surface, where the conditions necessary for metamorphism are present.

Answer 3

a few kilometers below earths surface

Answer 4

Deep Underground

(I think)