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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.
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.
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.
An eruption is classified as an explosive volcanic eruption based on the amount of which mineral found in the magma?
An eruption is classified as explosive primarily based on the amount of silica (SiO2) found in the magma. Higher silica content increases the viscosity of the magma, preventing gas from escaping easily, which leads to the buildup of pressure and ultimately results in explosive eruptions. Conversely, magma with lower silica content tends to be less viscous and allows gases to escape more readily, resulting in less explosive activity.
What drives an explosive eruption?
An explosive eruption is primarily driven by the accumulation of gas pressure within magma beneath the earth's surface. As magma rises, the decrease in pressure allows dissolved gases, such as water vapor and carbon dioxide, to expand rapidly, leading to an increase in volume. When the pressure exceeds the strength of the overlying rock, it results in a violent release of gas and magma, culminating in an explosive eruption. Factors such as the viscosity of the magma, the amount of gas it contains, and the geological setting also play crucial roles in determining the eruption's explosiveness.
What about magma affects how explosive an eruption will be?
The composition of the magma affects how explosive a volcanic eruption will be.
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.
Which is not a characteristic of magma from an explosive eruption?
flows easily
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.
Is flows easily a physical property of magma from a explosive eruption?
no
Is the flow easily a physical property of magma from an explosive eruption?
no
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.
If the water content of magma is high?
an explosive eruption is more likely.
What kind of of volcanic eruption occurs when basaltic magma is present?
Basaltic magma usually produces a Hawaiian or Stombolian style of eruption.
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.
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.
An eruption is classified as an explosive volcanic eruption based on the amount of which mineral found in the magma?
An eruption is classified as explosive primarily based on the amount of silica (SiO2) found in the magma. Higher silica content increases the viscosity of the magma, preventing gas from escaping easily, which leads to the buildup of pressure and ultimately results in explosive eruptions. Conversely, magma with lower silica content tends to be less viscous and allows gases to escape more readily, resulting in less explosive activity.
