Metamorphic Rocks

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What are metamorphic rocks?

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Metamorphic rocks are rocks that have been changed from their original form due to heat, pressure, or chemically active fluids.

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What is the process of metamorphism?

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Metamorphism is the process by which existing rocks are transformed into metamorphic rocks through heat, pressure, and chemical processes.

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What are the two main types of metamorphic rocks?

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Foliated and nonfoliated.

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What characterizes foliated metamorphic rocks?

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Foliated metamorphic rocks have grains arranged in parallel layers or bands.

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What characterizes nonfoliated metamorphic rocks?

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Nonfoliated metamorphic rocks do not have visible bands or layers.

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What is an example of a foliated metamorphic rock?

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Slate is an example of a foliated metamorphic rock.

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What is an example of a nonfoliated metamorphic rock?

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Marble is an example of a nonfoliated metamorphic rock.

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What type of metamorphism is caused by igneous intrusions?

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Contact metamorphism.

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What is contact metamorphism?

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Contact metamorphism occurs when rocks are heated by nearby molten magma or lava.

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What is regional metamorphism?

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Regional metamorphism occurs over large areas under high pressure and temperature, often associated with tectonic forces.