Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.
What are the two ways metamorphic rocks form?
Lesson Summary
- Metamorphic rocks form when heat and pressure transform an existing rock into a new rock.
- Contact metamorphism occurs when hot magma transforms rock that it contacts.
- Regional metamorphism transforms large areas of existing rocks under the tremendous heat and pressure created by tectonic forces.
Where do metamorphic rocks form *?
Explanation: Metamorphic rocks, like slate and marble, are formed from heat and pressure. This happens under the Earth's surface and the minerals in the rocks are chemically changed. It can also occur close to volcanoes, where underground magma can cause the heating.
