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How does the presence of water i magma affect a valconic eruption?
Wiki User
∙ 7y ago
Because if the water content of magma is high, anexplosive eruption is more likely. Because magma is underground, it is under intense pressure and water stays dissolved in the magma. If the magma quickly moves to the surface, the pressure suddenly decreases and the water and other compounds become gas. As the gases expand rapidly, an explosion occurs. (I had the same question on my homework chapter review #16 ;)
Wiki User
∙ 7y ago
Wiki User
∙ 15y agoWater affects volcanic eruptions in terms of explosivity. The higher the water content of magma/lava is, the higher the viscosity, leading to more violent eruptions.
This is why basaltic (mafic) eruptions are usually less violent/hazardous compared to rhyolitic (felsic) ones.
The results of these felsic eruptions include: a lot of pyroclastic material (such as ash) blown into the air and this may cause people to suffocate, sunlight to be blocked etc.
Wiki User
∙ 11y agoThe higher the silica content of the magma, the more explosive the eruption. ...What does silicates and non silicates have in common? The more gases,water vapor and silica in magma the bigger the explosiveness of a volcanic eruption.
Wiki User
∙ 14y agoWater cools the molten rock quickly so it doesn't flow the way it does on land. It builds up quickly and that's how islands are formed.
Wiki User
∙ 11y agoWater increases the likeliness of a volcanic eruption.
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What combinations is most likely to result in a violent volcanic eruption?
The most likely combination to result in a violent volcanic eruption is the presence of highly viscous magma (such as rhyolitic or andesitic magma) and a large amount of dissolved gas (particularly water vapor and carbon dioxide). These conditions can lead to a buildup of pressure within the magma chamber, causing a violent and explosive eruption. Other factors such as the presence of a vent or conduit for the magma to reach the surface and the structural weakness or faults in the volcano can also contribute to the severity of the eruption.
What factors determine the force of a volcano eruption?
Factors that determine the force of an eruption are magma viscosity and gas content.
Which set of magma conditions produces the most explosive eruptions?
Magma is a hot fluid from deep within the Earth's crust. The set of magma conditions that produce the most explosive eruptions are high viscosity and the presence of dissolved gases.
How does magma composition and the resulting eruption affect the form of a volcano?
If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.
How do differences in magma affect volcanic eruptions?
If the magma has a high water content, then the volcano will most likely have an explosive eruption. Also, vocanoes can have explosive eruptions if the magma contains a large percentage of silica. Hope this helps!
How can the composition of magma affect the way volcano erupts?
If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.
What are the two important factors that affect the explosiveness of a volcanic eruption?
Pressure and magma
What combinations is most likely to result in a violent volcanic eruption?
The most likely combination to result in a violent volcanic eruption is the presence of highly viscous magma (such as rhyolitic or andesitic magma) and a large amount of dissolved gas (particularly water vapor and carbon dioxide). These conditions can lead to a buildup of pressure within the magma chamber, causing a violent and explosive eruption. Other factors such as the presence of a vent or conduit for the magma to reach the surface and the structural weakness or faults in the volcano can also contribute to the severity of the eruption.
What factors determine the force of a volcano eruption?
Factors that determine the force of an eruption are magma viscosity and gas content.
What about magma affects how explosive an eruption will be?
The composition of the magma affects how explosive a volcanic eruption will be.
Which set of magma conditions produces the most explosive eruptions?
Magma is a hot fluid from deep within the Earth's crust. The set of magma conditions that produce the most explosive eruptions are high viscosity and the presence of dissolved gases.
How is strength of a volcano eruption related to the magma in the volcano?
If the magma is more viscous, the eruption is stronger.
How does magma composition and the resulting eruption affect the form of a volcano?
If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.
How do differences in magma affect volcanic eruptions?
If the magma has a high water content, then the volcano will most likely have an explosive eruption. Also, vocanoes can have explosive eruptions if the magma contains a large percentage of silica. Hope this helps!
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.
How does the presence of water in magma increase the chance of an explosive eruption?
At the temperatures found in magma water would normally be a gas, but is trapped under pressure as long as the magma is underground. When pressure is reduced enough the water vapor can bubble out of the magma very rapidly, resulting in an explosion.
Does water vapor affect how explosive a volcano is?
Yes. More gas trapped in magma leads to a more explosive eruption. Water vapor is the most abundant gas in magma.
