Volcanic Eruptions: Cyclicity During Lava Dome Growth
نویسندگان
چکیده
Glossary andesite magma or volcanic rock is characterised by intermediate SiO2 concentration. Andesite magmas have rheological properties that are intermediate between basalt and rhyolite magmas. Silica content in andesites ranges from approximately 52 to 66 weight percent. Common minerals in andesite include plagioclase, amphibole and pyroxene. Andesite is typically erupted at temperatures between 800 to 1000 ◦C Andesite is particularly common in subduction zones, where tectonic plates converge and water is introduced into the mantle.
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