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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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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.


When magma escapes from the mantle to the sufrface of earth it causes 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.


Is Magma pockets the violent volcanic eruption?

yes


What may precede a volcanic eruption?

Earthtremors.


What happens to the magma that leads to volcanic eruption?

blast


What determined how strong a volcanic eruption will be?

The viscosity of the magma


What are two type of volcanic vents?

magma or lava dried after a volcanic eruption.


What are 3 types of non-volcanic types of eruption?

Phreatic eruptions occur when water comes into contact with magma, causing a steam-driven explosion. Phreatomagmatic eruptions involve the interaction of water and magma to produce explosive eruptions. Surtseyan eruptions refer to shallow submarine or coastal volcanic eruptions that interact with water or ice, creating explosive activity.