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Magma mixing: A mechanism for triggering acid explosive eruptions

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<mark>Journal publication date</mark>26/05/1977
<mark>Journal</mark>Nature
Issue number5609
Volume267
Number of pages4
Pages (from-to)315-318
Publication StatusPublished
<mark>Original language</mark>English

Abstract

Injection of basic magma into acid magma causes superheating of the acid magma and vigorous convection. Vesiculation induced by convection and increased magma pressure fractures the volcanic edifice triggering an explosive acid eruption. The 1875 plinian eruption of Askja, Iceland is an example of an explosive eruption triggered by magma mixing.