Magma mixing:A mechanism for triggering acid explosive eruptions

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 a...

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Bibliographic Details
Published in:Nature
Main Authors: Sparks, Stephen R.J., Sigurdsson, Haraldur, Wilson, Lionel
Format: Article in Journal/Newspaper
Language:unknown
Published: 1977
Subjects:
Online Access:https://eprints.lancs.ac.uk/id/eprint/149054/
https://doi.org/10.1038/267315a0
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Summary: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.