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How the composition of magma determines an eruption's characteristics?
Wiki User
∙ 9y ago
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.
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoUltramafic (picritic) - gentle or very explosive (kimberlites), Mafic,(basaltic) - gentle , Intermediate (andesitic) - explosive and Felsic (rhyolitic) - explosive.
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What determines the severity of volcanic eruptions?
The size of the magma chamber and the viscosity of the magma.
What causes the most violent eruptions in volcanoes?
high viscosity in magma composition.
What causes volcano to errupt?
I think it is all to do with the pressure forming underneath the earth's crust in the mantle and magma chamber hope this helps!
What determines how different types of volcanos are created?
The formation and composition of the magma, and the local subterranean geology.
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 determines the severity of volcanic eruptions?
The size of the magma chamber and the viscosity of the magma.
What causes the most violent eruptions in volcanoes?
high viscosity in magma composition.
What characteristics determines the chemical composition of an igneous rock?
An igneous rock is any crystalline or glassy rock that forms from cooling of a magma. Color and texture help determine the chemical composition of the rock.
What determines the color of a igneous rock?
The composition of the magma or lava that it cools from.
What causes volcano to errupt?
I think it is all to do with the pressure forming underneath the earth's crust in the mantle and magma chamber hope this helps!
What determines the magnetism of rocks formed from cooling magma?
The composition of the magma and the local magnetic flux as it crossed the Curie point.
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.
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 determines how different types of volcanos are created?
The formation and composition of the magma, and the local subterranean geology.
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.
Does thin magma cause explosive eruptions?
No, quiet eruptions.
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.
