Topic: Silica Content of Magma
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Answers to Common Questions
What is the silica content of magma?
Ultramafic magmas are less than 45% silicon dioxide, felsic magma over 69%. In-between are mafic and intermediate magmas. Read More »
Source: http://wiki.answers.com/Q/Magma+has+a+low+silica+content
What is the silica content of basaltic magma?
The two most abundant elements in earth's crust and mantle are oxygen and silicon. These two elements combine to form the molecule called silica the basaltic magma. Basaltic magmas that form the oceanic crust of the Earth are generated in t... Read More »
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What is the relationship of magma and silica content?
The chemical composition of igneous rock and magma can be placed on a scale in which the content varies from high in silica, to total lack of silica. High silica magmas are extremely thick and viscous. Low silica magmas are thin and runny. Read More »
Source: http://wiki.answers.com/Q/What+is+the+silica+content+of+the+crust...
More Common Questions
Answers to Other Common Questions
The higher the silica content of the magma, the more viscous the magma. The higher the viscosity of the magma, the more explosive the eruptions of the volcano tend to be. Lower silica content lavas tend to form shield volcanoes (such as the...
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Source: http://wiki.answers.com/Q/What_effect_does_silica_content_have_on...
you suck balls
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When it cools and crystallizes into rock, the rock will be described as felsic igneous rock. Examples of felsic igneous rocks are granite, rhyolite, and pumice.
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Felsic
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low silica content (basaltic magma)
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The more silica crystal within the magma, the more viscous the magma is, because of crystals sticking together. So magma with low silica content is runny, and wiht just flow gently out of a volcano, like in hawai, but viscous (sticky, like ...
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Source: http://wiki.answers.com/Q/Why_is_the_silica_content_of_magma_sign...
Silica content magmas have higher viscosity than lowe...
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