Metamorphic Rocks

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What are metamorphic rocks?

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Rocks that have been changed from one type to another due to heat, pressure, or chemically active fluids.

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How are metamorphic rocks classified?

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They are classified based on the arrangement of the grains making up the rocks.

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What causes the extreme heat that forms metamorphic rocks?

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The fiery hot magma in the Earth's mantle.

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What is the role of pressure in the formation of metamorphic rocks?

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Pressure, along with heat, changes the structure and composition of the original rock.

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What is foliation in metamorphic rocks?

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Foliation refers to the visible layers or bands of minerals within metamorphic rocks.

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What is the difference between foliated and unfoliated metamorphic rocks?

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Foliated rocks have a layered appearance, while unfoliated rocks do not show any layering.

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Can you name an example of a foliated metamorphic rock?

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Schist is an example of a foliated metamorphic rock.

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Can you name an example of an unfoliated metamorphic rock?

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Marble is an example of an unfoliated metamorphic rock.

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What is the process of metamorphism?

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The process by which existing rocks are transformed into metamorphic rocks through heat and pressure.

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What is the parent rock of marble?

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Limestone is the parent rock of marble.