Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland

International audience Pressure influences both magma production and the failure of magma chambers. Changes in pressure interact with the local tectonic settings and can affect magmatic activity. Present-day reduction in ice load on subglacial volcanoes due to global warming is modifying pressure co...

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Published in:Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Main Authors: Sigmundsson, F., Pinel, V., Lund, B., Albino, F., Pagli, C., Geirsson, H., Sturkell, E.
Other Authors: Nordic Volcanological Center, Institute of Earth Sciences, Institute of Earth Sciences University of Iceland, University of Iceland Reykjavik -University of Iceland Reykjavik, Laboratoire de Géophysique Interne et Tectonophysique (LGIT), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Central des Ponts et Chaussées (LCPC)-Centre National de la Recherche Scientifique (CNRS), Department of Earth Sciences Uppsala, Uppsala University, Institute of Geophysics and Tectonics, School of Earth and Environment, University of Leeds, Icelandic Meteorological Office, celandic Meteorological Office, Department of Earth Sciences Gothenburg, University of Gothenburg (GU)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2010
Subjects:
Online Access:https://hal-insu.archives-ouvertes.fr/insu-00548991
https://doi.org/10.1098/RSTA.2010.0042
id ftccsdartic:oai:HAL:insu-00548991v1
record_format openpolar
institution Open Polar
collection Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
op_collection_id ftccsdartic
language English
topic global warming
ice retreat
glacial rebound
volcanoes
magma
pressure
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology
[SDE.MCG]Environmental Sciences/Global Changes
spellingShingle global warming
ice retreat
glacial rebound
volcanoes
magma
pressure
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology
[SDE.MCG]Environmental Sciences/Global Changes
Sigmundsson, F.
Pinel, V.
Lund, B.
Albino, F.
Pagli, C.
Geirsson, H.
Sturkell, E.
Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland
topic_facet global warming
ice retreat
glacial rebound
volcanoes
magma
pressure
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology
[SDE.MCG]Environmental Sciences/Global Changes
description International audience Pressure influences both magma production and the failure of magma chambers. Changes in pressure interact with the local tectonic settings and can affect magmatic activity. Present-day reduction in ice load on subglacial volcanoes due to global warming is modifying pressure conditions in magmatic systems. The large pulse in volcanic production at the end of the last glaciation in Iceland suggests a link between unloading and volcanism, and models of that process can help to evaluate future scenarios. A viscoelastic model of glacio-isostatic adjustment that considers melt generation demonstrates how surface unloading may lead to a pulse in magmatic activity. Iceland's ice caps have been thinning since 1890 and glacial rebound at rates exceeding 20 mm yr−1 is ongoing. Modelling predicts a significant amount of 'additional' magma generation under Iceland due to ice retreat. The unloading also influences stress conditions in shallow magma chambers, modifying their failure conditions in a manner that depends critically on ice retreat, the shape and depth of magma chambers as well as the compressibility of the magma. An annual cycle of land elevation in Iceland, due to seasonal variation of ice mass, indicates an annual modulation of failure conditions in subglacial magma chambers.
author2 Nordic Volcanological Center, Institute of Earth Sciences
Institute of Earth Sciences University of Iceland
University of Iceland Reykjavik -University of Iceland Reykjavik
Laboratoire de Géophysique Interne et Tectonophysique (LGIT)
Observatoire des Sciences de l'Univers de Grenoble (OSUG)
Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Central des Ponts et Chaussées (LCPC)-Centre National de la Recherche Scientifique (CNRS)
Department of Earth Sciences Uppsala
Uppsala University
Institute of Geophysics and Tectonics, School of Earth and Environment
University of Leeds
Icelandic Meteorological Office
celandic Meteorological Office
Department of Earth Sciences Gothenburg
University of Gothenburg (GU)
format Article in Journal/Newspaper
author Sigmundsson, F.
Pinel, V.
Lund, B.
Albino, F.
Pagli, C.
Geirsson, H.
Sturkell, E.
author_facet Sigmundsson, F.
Pinel, V.
Lund, B.
Albino, F.
Pagli, C.
Geirsson, H.
Sturkell, E.
author_sort Sigmundsson, F.
title Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland
title_short Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland
title_full Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland
title_fullStr Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland
title_full_unstemmed Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland
title_sort climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from iceland
publisher HAL CCSD
publishDate 2010
url https://hal-insu.archives-ouvertes.fr/insu-00548991
https://doi.org/10.1098/RSTA.2010.0042
genre Iceland
genre_facet Iceland
op_source ISSN: 1364-503X
EISSN: 1471-2962
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
https://hal-insu.archives-ouvertes.fr/insu-00548991
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Royal Society, The, 2010, 368 (1919), pp.2519-2534. ⟨10.1098/RSTA.2010.0042⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1098/RSTA.2010.0042
insu-00548991
https://hal-insu.archives-ouvertes.fr/insu-00548991
doi:10.1098/RSTA.2010.0042
BIBCODE: 2010RSPTA.368.2519S
op_doi https://doi.org/10.1098/RSTA.2010.0042
container_title Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
container_volume 368
container_issue 1919
container_start_page 2519
op_container_end_page 2534
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spelling ftccsdartic:oai:HAL:insu-00548991v1 2023-05-15T16:46:15+02:00 Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland Sigmundsson, F. Pinel, V. Lund, B. Albino, F. Pagli, C. Geirsson, H. Sturkell, E. Nordic Volcanological Center, Institute of Earth Sciences Institute of Earth Sciences University of Iceland University of Iceland Reykjavik -University of Iceland Reykjavik Laboratoire de Géophysique Interne et Tectonophysique (LGIT) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Central des Ponts et Chaussées (LCPC)-Centre National de la Recherche Scientifique (CNRS) Department of Earth Sciences Uppsala Uppsala University Institute of Geophysics and Tectonics, School of Earth and Environment University of Leeds Icelandic Meteorological Office celandic Meteorological Office Department of Earth Sciences Gothenburg University of Gothenburg (GU) 2010-04 https://hal-insu.archives-ouvertes.fr/insu-00548991 https://doi.org/10.1098/RSTA.2010.0042 en eng HAL CCSD Royal Society, The info:eu-repo/semantics/altIdentifier/doi/10.1098/RSTA.2010.0042 insu-00548991 https://hal-insu.archives-ouvertes.fr/insu-00548991 doi:10.1098/RSTA.2010.0042 BIBCODE: 2010RSPTA.368.2519S ISSN: 1364-503X EISSN: 1471-2962 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences https://hal-insu.archives-ouvertes.fr/insu-00548991 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Royal Society, The, 2010, 368 (1919), pp.2519-2534. ⟨10.1098/RSTA.2010.0042⟩ global warming ice retreat glacial rebound volcanoes magma pressure [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1098/RSTA.2010.0042 2021-10-24T18:15:52Z International audience Pressure influences both magma production and the failure of magma chambers. Changes in pressure interact with the local tectonic settings and can affect magmatic activity. Present-day reduction in ice load on subglacial volcanoes due to global warming is modifying pressure conditions in magmatic systems. The large pulse in volcanic production at the end of the last glaciation in Iceland suggests a link between unloading and volcanism, and models of that process can help to evaluate future scenarios. A viscoelastic model of glacio-isostatic adjustment that considers melt generation demonstrates how surface unloading may lead to a pulse in magmatic activity. Iceland's ice caps have been thinning since 1890 and glacial rebound at rates exceeding 20 mm yr−1 is ongoing. Modelling predicts a significant amount of 'additional' magma generation under Iceland due to ice retreat. The unloading also influences stress conditions in shallow magma chambers, modifying their failure conditions in a manner that depends critically on ice retreat, the shape and depth of magma chambers as well as the compressibility of the magma. An annual cycle of land elevation in Iceland, due to seasonal variation of ice mass, indicates an annual modulation of failure conditions in subglacial magma chambers. Article in Journal/Newspaper Iceland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 368 1919 2519 2534