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19-02-2020
Geography

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5. Describe the three types of magma. Include the silica content and explosivity

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jawiseman32 jawiseman32

19-02-2020

Answer:

Basaltic magma -- SiO2 45-55 wt%, high in Fe, Mg, Ca, low in K, Na

Andesitic magma -- SiO2 55-65 wt%, intermediate. in Fe, Mg, Ca, Na, K

Rhyolitic magma -- SiO2 65-75%, low in Fe, Mg, Ca, high in K, Na

Explanation:

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