What determines the viscosity of magma? What else determines whether a volcano will erupt violently or calmly

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asked Dec 10, 2022 28.4k views

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Cherno · Answer 1 · 2022-12-16T14:03:34+0000

The higher the amount of silica in the magma, the higher is its viscosity. Viscosity is a liquid's resistance to flow. Viscosity determines what the magma will do. Mafic magma is not viscous and will flow easily to the surface. Hope this helps

What determines the viscosity of magma? What else determines whether a volcano will erupt violently or calmly

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