0
What does silicaviscosity and gas content have to do with types of magma?
Wiki User
∙ 8y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What Gas Content does a Shield Volcano have?
Magma in a shield volcano usually has a low gas content.
An explosive eruption occurs if magma is?
Eruptions are explosive if the magma is viscous and has a high gas content.
What factors determine the force of a volcano eruption?
Factors that determine the force of an eruption are magma viscosity and gas content.
How does gas affect a volcano eruption?
Volcanoes vary a lot in how they erupt. The most important factor is the gas content of the magma. All magmas have gases dissolved in them, in the same way that soft drinks have carbon dioxide dissolved in to make them fizzy. As the magma gets close to the surface, the pressure on the magma decreases. That causes some of the gas to bubble out of the magma. Magma with low gas content comes out of the volcano without violent explosions and then flows peacefully down the sides of the volcano.
Does a composite volcano have a high gas content?
Yes. Composite volcanoes often have a high gas content in their magma, which is why they often erupt explosively.
What Gas Content does a Shield Volcano have?
Magma in a shield volcano usually has a low gas content.
An explosive eruption occurs if magma is?
Eruptions are explosive if the magma is viscous and has a high gas content.
Does Andesitic magma have both an intermediate gas content and explosiveness?
yes.
What factors determine the force of a volcano eruption?
Factors that determine the force of an eruption are magma viscosity and gas content.
How does gas affect a volcano eruption?
Volcanoes vary a lot in how they erupt. The most important factor is the gas content of the magma. All magmas have gases dissolved in them, in the same way that soft drinks have carbon dioxide dissolved in to make them fizzy. As the magma gets close to the surface, the pressure on the magma decreases. That causes some of the gas to bubble out of the magma. Magma with low gas content comes out of the volcano without violent explosions and then flows peacefully down the sides of the volcano.
Does a composite volcano have a high gas content?
Yes. Composite volcanoes often have a high gas content in their magma, which is why they often erupt explosively.
Why is mauna loa nonexplosive?
The explosive force of a volcanic eruption comes from gas trapped in the magma. The magma that feeds Mauna Loa has a low gas content.
Why does magma erupt effusively?
Due to high gas content and high viscosity.
What are the two factors control the explosiveness of a volcano?
The viscosity of the magma and its gas content.
Lava plateaus are likely to have formed from magma that is?
basaltic with little gas content
Higly explosive volcanoes tend to have what type of magma?
Magma with high silica, high viscosity, and higher gas content.
Where does the viscosity of magma depends?
1. Chemical Composition of the magma. 2. Concentration of the melt. 3. Presence of Volatiles. 4. Amount of Water present in the magma.
