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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!
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoIf there is water present in the magma, it will come out of solution as the magma approaches the surface, forming rapidly expanding bubbles that generate an explosoive eruption.
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Describe how differences in magma affect volcanic eruptions?
It depends on the texture of the magma, if it is thick then it won't let the gases escape, and if it is liquidy then the gases will escape resulting in a nonexplosive eruption. If the magma is high in silica and water then it will be thick If the magma is low or has no silica or water then it will be liquidy. - Negehna 6th Grade
What determines the severity of volcanic eruptions?
The size of the magma chamber and the viscosity of the magma.
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.
Does low silica magma cause explosive volcanic eruptions?
Not usually. Explosive eruptions are more often to magma with high or moderate silica levels.
What are 3 types of non-volcanic types of eruption?
the two types of volcanic eruptions are magma and lava
How viscosity affect volcanic eruptions?
Viscosity is how thick the magma is and this can impact on how much a volcano erupts and how it flows.
Describe how differences in magma affect volcanic eruptions?
It depends on the texture of the magma, if it is thick then it won't let the gases escape, and if it is liquidy then the gases will escape resulting in a nonexplosive eruption. If the magma is high in silica and water then it will be thick If the magma is low or has no silica or water then it will be liquidy. - Negehna 6th Grade
Where were the Hawaiian islands formed from?
volcanic eruptions and magma
What determines the severity of volcanic eruptions?
The size of the magma chamber and the viscosity of the magma.
Do volcanic eruptions throw magma into the air?
yes drastically
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.
Does low silica magma cause explosive volcanic eruptions?
Not usually. Explosive eruptions are more often to magma with high or moderate silica levels.
Why do volcanic eruptions differ?
The main cause of differences in volcanic eruption characteristics is due to the viscosity of the magma. High viscosity magmas are high in sticky silica which traps gas and produces explosive eruptions. Low viscosity magmas are low in silica and produce eruptions with far less energetic characteristics.
What are 3 types of non-volcanic types of eruption?
the two types of volcanic eruptions are magma and lava
What do quiet lava eruptions generally result from?
Volcanic eruptions are always caused by magma. This applies if the eruption is quiet or explosive, or whether the magma is felsic or mafic.
What does magma composition play a major role in?
The type of rock formed when the magma cools. The type of volcano or volcanic intrusion that is formed The explosiveness of volcanic eruptions.
What are 3 substances that affect the explosiveness of volcanic eruptions?
Amount of dissolved gasses in a liquid, the silica content, and the viscosity of the magma.
