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How strong is basalt?

Category: Question and Answer Updated: 2019/10/18 Views  Views: 386       Likes  Likes: 40

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Basalt. Basalt is a hard, black volcanic rock with less than 52 silica. Because of this low silica content, basalt has a low viscosity (thickness), and so it can flow for long distances after erupting from a volcano. During an eruption, a basalt lava flow can easily move more than 20 km away from a vent.

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