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Chemistry
Volcanoes
Plate Tectonics

Why does magma in the mantle rise through the crust above it?

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December 18, 2016 8:07AM

Magma in the mantle rises through the crust because pressure builds up in the mantle and forces the magma to go up through the crust above, or because the pressure in the mantle pushes the magma upwards through the crust.