What Materials from a Volcano Determines Its Explosiveness?

The amount of dissolved gas in the magma provides the driving force for explosive eruptions

explosive eruptions
In volcanology, an explosive eruption is a volcanic eruption of the most violent type. ... Such eruptions result when sufficient gas has dissolved under pressure within a viscous magma such that expelled lava violently froths into volcanic ash when pressure is suddenly lowered at the vent.
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. The viscosity of the magma, however, is also an important factor in determining whether an eruption will be explosive or nonexplosive.

What determines the explosiveness of a volcano?

The amount of dissolved gas in the magma provides the driving force for explosive eruptions. The viscosity of the magma, however, is also an important factor in determining whether an eruption will be explosive or nonexplosive.

What material is produced by explosive volcanoes?

Volcanic eruptions produce three types of materials: gas, lava, and fragmented debris called tephra.

Maya Lin-Takahashi

Maya Lin-Takahashi

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Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.