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 …
Metamorphic rock | Definition, Formation, & Facts | Britannica
Dec 27, 2025 · 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 …
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 …
Metamorphic Rocks – Formation, Types, Examples
Feb 24, 2024 · Learn about metamorphic rocks in geology. Discover how they form, the types, examples, and how to identify them.
METAMORPHIC Definition & Meaning - Merriam-Webster
The meaning of METAMORPHIC is of or relating to metamorphosis. How to use metamorphic in a sentence.
Metamorphic Rocks - Geology (U.S. National Park Service)
Oct 27, 2021 · 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 …
Metamorphic Rocks – Definition, Formation, Types, & Examples
Feb 2, 2023 · Metamorphic rocks form due to the transformation of preexisting rocks in response to environmental changes such as heat, high pressure, and mechanical stress. The parent rock can be …