GENERAL GEOLOGY

Detailed explanation-1: -The two major sources of energy for the rock cycle are also shown; the sun provides energy for surface processes such as weathering, erosion, and transport, and the Earth’s internal heat provides energy for processes like subduction, melting, and metamorphism.

Detailed explanation-2: -In order to create metamorphic rock, it is vital that the existing rock remain solid and not melt. If there is too much heat or pressure, the rock will melt and become magma. This will result in the formation of an igneous rock, not a metamorphic rock.

Detailed explanation-3: -In the diagram above magma has pushed its way into layers of limestone, quartz sandstone and shale. The heat generated by the magma chamber has changed these sedimentary rocks into the metamorphic rocks marble, quartzite, an hornfels.

Detailed explanation-4: -Answer and Explanation: Metamorphic rocks and igneous rocks are alike because both need heat for their formation. The heat from the lower layers of the Earth helps heat the rocks and melt them if necessary. If you were to dig deep, you may be able to find both these types of rocks depending on the location.