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How does contact metamorphism differ from regional metamorphism?

Answer 1

Contact metamorphism occurs when rocks are heated by magma or lava. this usually seen along the edges of igneous rocks.

Regional metamorphism is when rocks buried deep beneath the earth's surface are changed by high temperature and pressure. this usually occurs in large areas.

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Answer 2

Victoria Argento

Contact metamorphism occurs locally near igneous intrusions, involving high temperatures but low pressures. Regional metamorphism affects large geological regions, involving both high temperatures and pressures, typically associated with tectonic plate movements.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.