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Can Gas trapped in magma under high pressure can cause explosive eruptions.?
Yes. The gas is actually the primary driving force behind explosive eruptions.
Gas trapped in magma under high pressure can cause explosive eruptions.?
Yes. The gas is actually the primary driving force behind explosive eruptions.
Does thin magma cause explosive eruptions?
No, quiet 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?
Magma that tends to cause explosive eruptions is typically high in silica content, making it thick and viscous. This results in gas build-up and pressure within the magma chamber, leading to explosive eruptions.
Do silica-rich magma cause explosive eruptions?
yes
Gases that are trapped build up pressure in magma and can cause what?
The build-up of pressure from trapped gases in magma can cause explosive volcanic eruptions. The sudden release of this pressure propels magma, ash, and gases violently out of the volcano, leading to potentially devastating and widespread destruction.
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.
Is thick and sticky a physical property of magma from an explosive eruption?
Yes, magma viscosity (thickness) and stickiness can be physical properties of magma from explosive eruptions. Higher viscosity and stickiness can lead to explosive eruptions because gas bubbles are trapped in the magma, building up pressure until a violent release occurs.
Why are eruptions of mafic magma rather quiet?
The explosive force of violent eruptions is driven by gas trapped in the magma under pressure. Mafic magma often has a relatively low gas content and so usually erupts in a non-explosive or mildly explosive.
Which type of volcano has explosive eruptions due to thick magma which contains a large amount pf pressurized gas?
A stratovolcano, also known as a composite volcano, is the type of volcano that has explosive eruptions due to thick magma containing a large amount of pressurized gas. The build-up of pressure from the trapped gas within the viscous magma leads to explosive eruptions that can be highly destructive.
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.
