Jones, Thomas J;
Cashman, Katharine;
Liu, Emma J;
Rust, Alison C;
Scheu, Bettina;
(2022)
Magma fragmentation: a perspective on emerging topics and future directions.
Bulletin of Volcanology
, 84
, Article 45. 10.1007/s00445-022-01555-7.
Preview |
PDF
Jones2022_Article_MagmaFragmentationAPerspective.pdf - Published Version Download (833kB) | Preview |
Abstract
The breaking apart of magma into fragments is intimately related to the eruptive style and thus the nature and footprint of volcanic hazards. The size and shape distributions of the fragments, in turn, affect the efficiency of heat transfer within pyroclastic plumes and currents and the settling velocity, and so the residence time, of particles in the atmosphere. Fundamental work relating the glass transition to the fragmentation of magmas remains at the heart of conceptual and numerical models of volcanic eruptions. Current fragmentation criteria, however, do not predict the sizes and shapes of the resulting fragments, or fully account for the multiphase nature of magmas or ways in which magma can break in a fluidal manner or by thermal stress. The pulsatory, non-steady state nature of some eruptions, and related interactions with these fragmentation criteria, also requires further investigation. Here, we briefly review some recent advances in the field of magma fragmentation and provide a perspective on how integrated field, experimental and numerical modelling studies can address key outstanding challenges.
| Type: | Article |
|---|---|
| Title: | Magma fragmentation: a perspective on emerging topics and future directions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s00445-022-01555-7 |
| Publisher version: | https://doi.org/10.1007/s00445-022-01555-7 |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| Keywords: | Science & Technology, Physical Sciences, Geosciences, Multidisciplinary, Geology, Pyroclast, Tephra, Glass transition, Thermal granulation, Inertial fragmentation, Hydrovolcanic, PYROCLASTIC DENSITY CURRENTS, ERUPTION, VOLCANO, ASH, PERMEABILITY, DYNAMICS, ABRASION, RHEOLOGY, COMPONENTRY, TRANSITION |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10147928 |
Archive Staff Only
 |
View Item |
