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Metamorphic rock - Wikipedia Metamorphic rocks are one of the three great divisions of all rock types, and so there is a great variety of metamorphic rock types In general, if the protolith of a metamorphic rock can be determined, the rock is described by adding the prefix meta- to the protolith rock name
Metamorphic rock | Definition, Formation, Facts | Britannica Metamorphic rock, any rock that results from the alteration of preexisting rocks in response to changing conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components
What are metamorphic rocks? | U. S. Geological Survey 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
Metamorphic Rocks | Pictures of Foliated and Non-Foliated Types Metamorphic rocks have been modified by heat, pressure, and chemical processes, usually while buried deep below Earth's surface Exposure to these extreme conditions has altered the mineralogy, texture, and chemical composition of the rocks
Metamorphic Rocks - Geology (U. S. National Park Service) Metamorphic rocks form when high temperatures and pressure act on a rock to alter its physical and chemical properties (metamorphism means 'to change form') These conditions often stretch, twist and fold the rock as it cools
Metamorphic Rocks - Education Metamorphic rocks start as one type of rock and—with pressure, heat, and time—gradually change into a new type of rock
6 Metamorphic Rocks – An Introduction to Geology Metamorphic rocks are created when heat, pressure, and or fluids change preexisting rocks The rock cycle shows that both igneous and sedimentary rocks can become metamorphic rocks And metamorphic rocks themselves can be re-metamorphosed
3. 8: Metamorphic Rocks - Geosciences LibreTexts Metamorphic rocks provide a record of the processes that occurred inside Earth as the rock was subjected to changing physical and chemical conditions