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True. Many eruptions produce massive clouds of ash, gas, and pumice rather than lava. Phreatic eruptions, as another example, are essentially steam explosions.

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Q: Do some types of volcanic activity not involve the eruption of magma?
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Related questions

Is magma a explosive eruption and why?

Magma is not an eruption. Magma is a mixture of molten minerals and dissolved gas that is underground. All volcanic eruptions, apart from phreatic eruptions, involve magma.


Any activity that icludes the movement of magma on to the earth's surface?

This is known as a volcanic eruption.


What about magma affects how explosive an eruption will be?

The composition of the magma affects how explosive a volcanic eruption will be.


What type of volcanic eruption depends on the amount of gases and the composition?

The type of volcanic eruption depends on the amount of gases and the composition of magma. In addition to the composition of the magma, the volcanic eruption depends on the ration of sulfur, carbon dioxide, and water the magma contains.


How do you use the word magma in a sentence?

magma appears after a volcanic eruption.


Magma that is rejected during a volcanic eruption forms igneous rocks?

Magma that is ejected during a volcanic eruption forms extrusive igneous rocks. They are also referred to as volcanic rocks.


What is the relationship between the amount of gases in magma and the explosiveness a volcanic eruption?

The more gases, water vapor and silica there is in magma the bigger the explosiveness of a volcanic eruption.


Identify and explain the 3 factors that effect the force of a volcanic eruption?

The silica content effects the force of a volcanic eruption because magma with a lot of silica is thicker and magma with less silica is thinner. The amount of dissolved gases in magma effects the force of a volcanic eruption because the less gas in the magma, the less pressure will be inside the volcano. The temperature of the magma effects the force of a volcanic eruption because the hotter the magma, the more runny it is.


How would you use the word magma in a sentence?

there was much magma after the volcanic eruption


What happens to the magma that leads to volcanic eruption?

blast


Is Magma pockets the violent volcanic eruption?

yes


What may precede a volcanic eruption?

Earthtremors.