Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-8737
Authors: | Spang, Arne Burton, Michael Kaus, Boris J. P. Sigmundsson, Freysteinn |
Title: | Quantification of volcano deformation caused by volatile accumulation and release |
Online publication date: | 2-Feb-2023 |
Year of first publication: | 2023 |
Language: | english |
Abstract: | Crustal-stored magma reservoirs contain exsolved volatiles which accumulate in the reservoir roof, exerting a buoyancy force on the crust. This produces surface uplift and sudden loss of volatiles through eruption results in syn-eruptive subsidence. Here, we present three-dimensional, visco-elasto-plastic, numerical modeling results which quantify the ground deformation arising from the growth and release of a volatile reservoir. Deformation is mostly independent of crustal thermal distribution and volatile reservoir shape, but is a function of volatile volume, density and depth and crustal rigidity. We present a scaling law for the volatiles' contribution to syn-eruptive subsidence and show this contributes ∼20% of the observed subsidence associated with the 2015 Calbuco eruption. Our results highlight the key role that volatile-driven buoyancy can have in volcano deformation, show a new link between syn-eruptive degassing and deflation, and highlight that shallow volatile accumulation and release may have a significant impact on ground deformation of volcanoes. |
DDC: | 550 Geowissenschaften 550 Earth sciences |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 09 Chemie, Pharmazie u. Geowissensch. |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-8737 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
Document type specification: | Scientific article |
License: | CC BY-NC |
Information on rights of use: | https://creativecommons.org/licenses/by-nc/4.0/ |
Journal: | Geophysical research letters 49 10 |
Pages or article number: | 2021GL097502 |
Publisher: | John Wiley & Sons, Ltd |
Publisher place: | Hoboken, NJ |
ISSN: | 1944-8007 |
Publisher DOI: | 10.1029/2021GL097502 |
Appears in collections: | DFG-491381577-H |
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