Fluid dynamic induced break-up during volcanic eruptions

Jones, TJ ORCID: 0000-0003-4981-5131, Reynolds, CD and Boothroyd, SC
(2019) Fluid dynamic induced break-up during volcanic eruptions. Nature Communications, 10 (1). 3828-.

This is the latest version of this item.

Access the full-text of this item by clicking on the Open Access link.
[img] Text
Fluid dynamic induced break-up during volcanic eruptions.pdf - Published version

Download (1MB) | Preview


Determining whether magma fragments during eruption remains a seminal challenge in volcanology. There is a robust paradigm for fragmentation of high viscosity, silicic magmas, however little is known about the fragmentation behaviour of lower viscosity systems—the most abundant form of volcanism on Earth and on other planetary bodies and satellites. Here we provide a quantitative model, based on experiments, for the non-brittle, fluid dynamic induced fragmentation of low viscosity melts. We define the conditions under which extensional thinning or liquid break-up can be expected. We show that break-up, both in our experiments and natural eruptions, occurs by both viscous and capillary instabilities operating on contrasting timescales. These timescales are used to produce a universal break-up criterion valid for low viscosity melts such as basalt, kimberlite and carbonatite. Lastly, we relate these break-up instabilities to changes in eruptive behaviour, the associated natural hazard and ultimately the deposits formed.

Item Type: Article
Uncontrolled Keywords: Natural hazards, Volcanology
Depositing User: Symplectic Admin
Date Deposited: 10 Jul 2020 07:39
Last Modified: 18 Jan 2023 23:46
DOI: 10.1038/s41467-019-11750-4
Open Access URL: https://doi.org/10.1038/s41467-019-11750-4
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3093427

Available Versions of this Item