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A plume of magma pushes its way into a crack in Earth's crust. The heat causes _____.

contact metamorphism
regional metamorphism
dynamic metamorphism
igneous metamorphism

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The correct answer is "contact metamorphism." A plume of magma pushes its way into a crack in Earth's crust. The heat causes contact metamorphism. Contact metamorphism is a metamorphism due to contact with or proximity to an igneous intrusion.
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