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What two ingredients in magma affects the type of explosion and shape of a volcano?
Wiki User
∙ 9y ago
water and mantle rock
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More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
Davin Monahan
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What volcano is going to have the bigger explosion a short volcano or a tall volcano?
Most likely the taller volcanoe because it holds more magma inside its chamber.
What two ingredients in magma will affect the type of explosion and shape of a volcanoe?
water and mantle rock
What two ingredients in magma affect the type of explosion and shape of a volcano?
water and mantle rock +++ More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
What does underground water do to a volcano?
Groundwater that comes in contact with magma or rocks heated by magma can boil into steam. If it boils quickly enough it can result in an explosion called a phreatic eruption.
What causes a magma to be less viscous?
The main cause of an explosive volcano is the amount of gases trapped in the magma. If the gases have had time to escape, there will be less pressure built up resulting in a less vicious magma explosion.
What volcano is going to have the bigger explosion a short volcano or a tall volcano?
Most likely the taller volcanoe because it holds more magma inside its chamber.
What two ingredients in magma will affect the type of explosion and shape of a volcanoe?
water and mantle rock
What two ingredients in magma affect the type of explosion and shape of a volcano?
water and mantle rock +++ More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
How is the strength of a volcanic eruption related to the magma in the volcano?
If the magma is more viscous, the eruption is stronger.
What does underground water do to a volcano?
Groundwater that comes in contact with magma or rocks heated by magma can boil into steam. If it boils quickly enough it can result in an explosion called a phreatic eruption.
What causes a magma to be less viscous?
The main cause of an explosive volcano is the amount of gases trapped in the magma. If the gases have had time to escape, there will be less pressure built up resulting in a less vicious magma explosion.
How does the release of trapped gases in magma cause a volcano to erupt?
Some of the trapped gas in a magma will be water vapour, but at very high temperature. As the magma rises in the volcanic pipe, the pressure will lower, and the entrained vapour will expand rapidly = an explosion.
Is lava magma?
yes. magma is the lava that is in the volcano and lava is the magma that is outside a volcano
Why doesn't a volcano mountain explode everyday if the lava is always hot?
There are several reasons. First, there isn't always magma (what lava is called when it is underground). The magma is usually trapped far below the volcano, unless the volcano is erupting or about to erupt. Second, heat alone cannot create an explosion. An explosion requires rapid expansion. Explosive volcanic eruptions occur when gas trapped in the magma is suddenly released as pressure on the magma decreases, or when water flash boils on contact with lava or magma. If there is no gas, and no water, there cannot be an explosive eruption. Third, the kinds of magma most likely to cause explosive eruptions are very viscous, meaning they do not flow very easily. As a result, they tend to get "stuck." Finally, the poper term is "erupt" not "explode" as not all eruptions are explosive. If there is not enough gas the volcano will ooze out lava rather than causing an explosion.
Where is the magma in a volcano?
In a magma chamber
How does an ash cloud come out of a volcano?
There are two ways a volcano can produce an ash cloud. In most cases gas-rich magma rises inside the volcano. The gas is dissolved in the magma under pressure. As the magma approaches the surface the pressure decreases and the gas is released and expands rapidly, producing an explosion. The magma is blasted apart into tiny particles, which we call ash. The hot gasses then rise, taking much of the ash with them. In other gases, water inside a volcano may come in contact with magma or rocks heated by magma, causing steam explosions. These explosions pulverize some of the rock inside the volcano, during it into ash.
What is magma calle when it comes out of a volcano?
When magma comes out of a volcano, it is called Lava.
