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Acidic lava is very viscous, and thus will harden and block the vent. The magma will force its way out through the vent and create a violent explosion.

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โˆ™ 16y ago
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โˆ™ 12y ago

Silica-rich magma makes an eruption more violent. Liquid rich magma results in a greater explosion as well.

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โˆ™ 12y ago

silica-rich magma

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โˆ™ 6y ago

Rich in silica

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Q: What type of magma produces violent reaction?
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