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Modelling vapour transport in Surtseyan bombs

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journal contribution
posted on 08.12.2021, 22:18 by Mark McGuinnessMark McGuinness, E Greenbank, Christopher SchipperChristopher Schipper
We address questions that arise if a slurry containing liquid water is enclosed in a ball of hot viscous vesicular magma ejected as a bomb in the context of a Surtseyan eruption. We derive a mathematical model for transient changes in temperature and pressure due to flashing of liquid water to vapour inside the bomb. The magnitude of the transient pressure changes that are typically generated are calculated together with their dependence on material properties. A single criterion to determine whether the bomb will fragment as a result of the pressure changes is derived. Timescales for ejection of water vapour from a bomb that remains intact are also revealed.

History

Preferred citation

McGuinness, M. J., Greenbank, E. & Schipper, C. I. (2016). Modelling vapour transport in Surtseyan bombs. Journal of Volcanology and Geothermal Research, 318, 103-113. https://doi.org/10.1016/j.jvolgeores.2016.03.017

Journal title

Journal of Volcanology and Geothermal Research

Volume

318

Publication date

15/05/2016

Pagination

103-113

Publisher

Elsevier BV

Publication status

Published

Contribution type

Article

ISSN

0377-0273

eISSN

1872-6097

Language

en