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Q: What are the four controls on composition of magma?
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Four factors involved in the formation of magma?

Four factors involved in the formation of magma include; 1. Temperature. 2. Depth. 3. Chemical composition. 4. Quantity of water in the melt.


What are the 3 types of magma?

basaltic magma ,Andesitic magma and Rhyolitic magma


What is Sunset Crater's magma composition?

Sunset Crater was fed by basaltic magma.


Why is magma not a mineral?

Magma is not a mineral becauseIt is liquid.It does not have a definite chemical composition.


What type of magma is closer to intrusive rocks?

magma can be classified into two,magma of granitic composition(originates from lower continental crust) and magma of basaltic composition (which originates from upper mantle).Both can form intrusive rocks.


Which factors determine how violent an eruption will be?

· It is determined by the primary factors of the magma's Temperature, its Composition, and the amount of Dissolved Gases it contains.


What type of volcanic eruption depends on the amount of gases and the composition?

The type of volcanic eruption depends on the amount of gases and the composition of magma. In addition to the composition of the magma, the volcanic eruption depends on the ration of sulfur, carbon dioxide, and water the magma contains.


What is the magma composition of a cinder cone?

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What magma composition does Mt Hekla have?

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How forceful an eruption is depends on the composition of the?

magma .


What is the magma composition of Galeras?

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What about magma affects how explosive an eruption will be?

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