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Plural
metamorphisms
1
a complete change in the form and structure of a rock as a result of heat and pressure
- The intense heat and pressure deep within the Earth's crust cause metamorphism, transforming sedimentary rock into metamorphic rock.
- During metamorphism, the minerals within a rock undergo chemical changes, resulting in a completely new rock type.
- Geologists study metamorphism to understand the processes that shape the Earth's interior over millions of years.
- Regional metamorphism occurs over large areas and is typically associated with mountain-building events.
- Contact metamorphism happens when rocks are heated by nearby magma, leading to localized changes in the rock's structure and composition.