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Can Gas trapped in magma under high pressure can cause explosive eruptions.?
Wiki User
∙ 9y ago
Yes. The gas is actually the primary driving force behind explosive eruptions.
Wiki User
∙ 9y ago
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Gas trapped in magma under high pressure can cause explosive eruptions.?
Yes. The gas is actually the primary driving force behind explosive eruptions.
Does low silica magma cause explosive volcanic eruptions?
Not usually. Explosive eruptions are more often to magma with high or moderate silica levels.
What type of magma that tends to cause explosive eruptions has a what?
High temperature
What type of eruptions do mafic magmas cause?
Basaltic magmas are associated with fissure eruptions creating lava flows spilling out from cracks in the crust. This is because basaltic magmas are more viscous and contain a lower concentration of gases than rhyolitic magma and therefore are unable to build up sufficient pressure to produce explosive eruptions.
What are two reasons that magma with a high silica content tend to cause explosive eruptions?
Magma with a high silica content tend to cause explosive eruptions because it has a stiff consistency and blocks the vents. When magma pushes from behind it more pressure happens which means the eruption will be explosive. It also prevents gas and water vapor from getting out. The gases will expand until it explodes.
Gas trapped in magma under high pressure can cause explosive eruptions.?
Yes. The gas is actually the primary driving force behind explosive eruptions.
What is trapped in magma that can cause explosive eruptions?
Gas, primarily water vapor.
Does thin magma cause explosive eruptions?
No, quiet eruptions.
What type of eruptions cause a cinder cone?
Explosive
Do both quiet and explosive eruptions cause craters?
YES
Do silica-rich magma cause explosive eruptions?
yes
Does low silica magma cause explosive volcanic eruptions?
Not usually. Explosive eruptions are more often to magma with high or moderate silica levels.
What type of magma that tends to cause explosive eruptions has a what?
High temperature
Why does granitic magma cause explosive eruptions?
Granitic magma is highly viscous (resists flow). This high viscosity results in the entrapment and buildup of gases which create explosive eruptions.
What type of eruptions do mafic magmas cause?
Basaltic magmas are associated with fissure eruptions creating lava flows spilling out from cracks in the crust. This is because basaltic magmas are more viscous and contain a lower concentration of gases than rhyolitic magma and therefore are unable to build up sufficient pressure to produce explosive eruptions.
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.
What are two reasons that magma with a high silica content tend to cause explosive eruptions?
Magma with a high silica content tend to cause explosive eruptions because it has a stiff consistency and blocks the vents. When magma pushes from behind it more pressure happens which means the eruption will be explosive. It also prevents gas and water vapor from getting out. The gases will expand until it explodes.
