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Water and silicates are common components of the viscous lava that can expand explosively in an eruption.

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An explosive eruption occurs if magma is?

An explosive eruption occurs if magma is high in gas content and viscosity. The high gas content creates pressure within the magma chamber, leading to a violent release of energy when the eruption occurs. The high viscosity of the magma makes it more difficult for gases to escape, further increasing the explosiveness of the eruption.


If you have quiet eruption what kind of silica do you have?

If an eruption is quiet, it typically indicates that the magma has low viscosity due to high silica content. The high silica content causes the magma to be more fluid, allowing gases to escape easily and resulting in a gentle eruption with less explosive activity.


How the composition of magma determines an eruption's characteristics?

Silica(te) rich magma is usually an explosive eruption. The explosiveness of an eruption depends on - a) Gases trapped within the magma at eruption b) The Silica content c) The fragility of the crater walls and/or the volcanic plug.


What two factors control the explosiveness of an eruption?

The explosiveness of an eruption is primarily controlled by the viscosity of the magma and the amount of gas trapped in it. Low viscosity magma with high gas content tends to lead to more explosive eruptions, while high viscosity magma with lower gas content leads to less explosive eruptions.


Two factors control whether an eruption will be explosive or quiet?

The composition of the magma and the presence of trapped gases are two key factors that determine whether a volcanic eruption will be explosive or quiet. A high gas content and viscous magma can lead to explosive eruptions, while eruptions with low gas content and more fluid magma tend to be quieter.

Related Questions

An explosive eruption occurs if magma is?

An explosive eruption occurs if magma is high in gas content and viscosity. The high gas content creates pressure within the magma chamber, leading to a violent release of energy when the eruption occurs. The high viscosity of the magma makes it more difficult for gases to escape, further increasing the explosiveness of the eruption.


If the water content of magma is high?

an explosive eruption is more likely.


What about magma affects how explosive an eruption will be?

The composition of the magma affects how explosive a volcanic eruption will be.


What is the relationship between the silica contents of magma and the explosiveness of a volcanic eruption?

The high the silica content, the explosive and the eruption.


If you have quiet eruption what kind of silica do you have?

If an eruption is quiet, it typically indicates that the magma has low viscosity due to high silica content. The high silica content causes the magma to be more fluid, allowing gases to escape easily and resulting in a gentle eruption with less explosive activity.


How the composition of magma determines an eruption's characteristics?

Silica(te) rich magma is usually an explosive eruption. The explosiveness of an eruption depends on - a) Gases trapped within the magma at eruption b) The Silica content c) The fragility of the crater walls and/or the volcanic plug.


What two factors control the explosiveness of an eruption?

The explosiveness of an eruption is primarily controlled by the viscosity of the magma and the amount of gas trapped in it. Low viscosity magma with high gas content tends to lead to more explosive eruptions, while high viscosity magma with lower gas content leads to less explosive eruptions.


Two factors control whether an eruption will be explosive or quiet?

The composition of the magma and the presence of trapped gases are two key factors that determine whether a volcanic eruption will be explosive or quiet. A high gas content and viscous magma can lead to explosive eruptions, while eruptions with low gas content and more fluid magma tend to be quieter.


What type of eruptions does Mt Pinatubo have and what causes the eruption to be violent or non-violent?

Mt. Pinatubo is known to have explosive eruptions. The violence of an eruption is influenced by the amount of dissolved gas in the magma, the viscosity of the magma, and the presence of water or other fluids. If the magma has high gas content, is highly viscous, and interacts with water, it can lead to a more violent eruption.


What effect does silica content have on the magma?

Silica content makes the magma thicker which can cause a more explosive eruption, and also make it so more gases aer open to be trapped


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.


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.