What processes in the rock cycle occur within the earth’s surface

The key processes of the rock cycle are crystallization, erosion and sedimentation, and metamorphism.

(From the Greek "to transform," metamorphosis is the change that occurs when rocks under the earth's surface are subjected to intense heat and pressure, turning them into metamorphic rocks. A type of extrusive igneous rock, created from lava that cools so quickly that no crystals can form on its surface.)

Ibelieve it's the pacific islands