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Observing eruptions of gas-rich compressible magmas from space

Observations of volcanoes from space are a critical component of volcano monitoring, but we lack quantitative integrated models to interpret them. The atmospheric sulfur yields of eruptions are variable and not well correlated with eruption magnitude and for many eruptions the volume of erupted mate...

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Detalles Bibliográficos
Autores principales: Kilbride, Brendan McCormick, Edmonds, Marie, Biggs, Juliet
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5187499/
https://www.ncbi.nlm.nih.gov/pubmed/28000791
http://dx.doi.org/10.1038/ncomms13744
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author Kilbride, Brendan McCormick
Edmonds, Marie
Biggs, Juliet
author_facet Kilbride, Brendan McCormick
Edmonds, Marie
Biggs, Juliet
author_sort Kilbride, Brendan McCormick
collection PubMed
description Observations of volcanoes from space are a critical component of volcano monitoring, but we lack quantitative integrated models to interpret them. The atmospheric sulfur yields of eruptions are variable and not well correlated with eruption magnitude and for many eruptions the volume of erupted material is much greater than the subsurface volume change inferred from ground displacements. Up to now, these observations have been treated independently, but they are fundamentally linked. If magmas are vapour-saturated before eruption, bubbles cause the magma to become more compressible, resulting in muted ground displacements. The bubbles contain the sulfur-bearing vapour injected into the atmosphere during eruptions. Here we present a model that allows the inferred volume change of the reservoir and the sulfur mass loading to be predicted as a function of reservoir depth and the magma's oxidation state and volatile content, which is consistent with the array of natural data.
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spelling pubmed-51874992017-01-03 Observing eruptions of gas-rich compressible magmas from space Kilbride, Brendan McCormick Edmonds, Marie Biggs, Juliet Nat Commun Article Observations of volcanoes from space are a critical component of volcano monitoring, but we lack quantitative integrated models to interpret them. The atmospheric sulfur yields of eruptions are variable and not well correlated with eruption magnitude and for many eruptions the volume of erupted material is much greater than the subsurface volume change inferred from ground displacements. Up to now, these observations have been treated independently, but they are fundamentally linked. If magmas are vapour-saturated before eruption, bubbles cause the magma to become more compressible, resulting in muted ground displacements. The bubbles contain the sulfur-bearing vapour injected into the atmosphere during eruptions. Here we present a model that allows the inferred volume change of the reservoir and the sulfur mass loading to be predicted as a function of reservoir depth and the magma's oxidation state and volatile content, which is consistent with the array of natural data. Nature Publishing Group 2016-12-21 /pmc/articles/PMC5187499/ /pubmed/28000791 http://dx.doi.org/10.1038/ncomms13744 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Kilbride, Brendan McCormick
Edmonds, Marie
Biggs, Juliet
Observing eruptions of gas-rich compressible magmas from space
title Observing eruptions of gas-rich compressible magmas from space
title_full Observing eruptions of gas-rich compressible magmas from space
title_fullStr Observing eruptions of gas-rich compressible magmas from space
title_full_unstemmed Observing eruptions of gas-rich compressible magmas from space
title_short Observing eruptions of gas-rich compressible magmas from space
title_sort observing eruptions of gas-rich compressible magmas from space
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5187499/
https://www.ncbi.nlm.nih.gov/pubmed/28000791
http://dx.doi.org/10.1038/ncomms13744
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