An eruption is classified as an explosive volcanic eruption based on the amount of which mineral found in the magma?

It's classified as volcanic eruption based on the amount of basalt .
Basaltic magma is SiO2 with high amount of Iron, Magnesium and Calcium

Answered by mackiemesser | 2024-06-10

Explosive volcanic eruptions are classified primarily by the high silica content in the magma, which increases viscosity and pressure buildup. This silica-rich magma, such as rhyolitic or andesitic, can lead to more explosive eruptions than lower silica content magma like basaltic. Therefore, the presence of silica is key to understanding the nature of volcanic eruptions.
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Answered by mackiemesser | 2025-06-16