Deep crustal melt plumbing of Bárðarbunga volcano, Iceland

Understanding magmatic plumbing within the Earth's crust is important for understanding volcanic systems and improving eruption forecasting. We discuss magma plumbing under Bárðarbunga volcano, Iceland, over a 4 year period encompassing the largest Icelandic eruption in 230 years. Microseismici...

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Published in:Geophysical Research Letters
Main Authors: Hudson, T.S., White, R.S., Greenfield, T., Ágústsdóttir, T., Brisbourne, A., Green, R.G.
Format: Article in Journal/Newspaper
Language:English
Published: American Geophysical Union 2017
Subjects:
Online Access:http://nora.nerc.ac.uk/id/eprint/517999/
https://nora.nerc.ac.uk/id/eprint/517999/1/Hudson_et_al-2017-Geophysical_Research_Letters.pdf
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL074749
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spelling ftnerc:oai:nora.nerc.ac.uk:517999 2023-05-15T16:47:09+02:00 Deep crustal melt plumbing of Bárðarbunga volcano, Iceland Hudson, T.S. White, R.S. Greenfield, T. Ágústsdóttir, T. Brisbourne, A. Green, R.G. 2017-09-16 text http://nora.nerc.ac.uk/id/eprint/517999/ https://nora.nerc.ac.uk/id/eprint/517999/1/Hudson_et_al-2017-Geophysical_Research_Letters.pdf https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL074749 en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/517999/1/Hudson_et_al-2017-Geophysical_Research_Letters.pdf Hudson, T.S. orcid:0000-0003-2944-883X White, R.S.; Greenfield, T.; Ágústsdóttir, T.; Brisbourne, A. orcid:0000-0002-9887-7120 Green, R.G. 2017 Deep crustal melt plumbing of Bárðarbunga volcano, Iceland. Geophysical Research Letters, 44 (17). 8785-8794. https://doi.org/10.1002/2017GL074749 <https://doi.org/10.1002/2017GL074749> Publication - Article PeerReviewed 2017 ftnerc https://doi.org/10.1002/2017GL074749 2023-02-04T19:45:27Z Understanding magmatic plumbing within the Earth's crust is important for understanding volcanic systems and improving eruption forecasting. We discuss magma plumbing under Bárðarbunga volcano, Iceland, over a 4 year period encompassing the largest Icelandic eruption in 230 years. Microseismicity extends through the usually ductile region of the Earth's crust, from 7 to 22 km depth in a subvertical column. Moment tensor solutions for an example earthquake exhibits opening tensile crack behavior. This is consistent with the deep (>7 km) seismicity being caused by the movement of melt in the normally aseismic crust. The seismically inferred melt path from the mantle source is offset laterally from the center of the Bárðarbunga caldera by ~12 km, rather than lying directly beneath it. It is likely that an aseismic melt feed also exists directly beneath the caldera and is aseismic due to elevated temperatures and pervasive partial melt under the caldera. Article in Journal/Newspaper Iceland Natural Environment Research Council: NERC Open Research Archive Geophysical Research Letters 44 17 8785 8794
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collection Natural Environment Research Council: NERC Open Research Archive
op_collection_id ftnerc
language English
description Understanding magmatic plumbing within the Earth's crust is important for understanding volcanic systems and improving eruption forecasting. We discuss magma plumbing under Bárðarbunga volcano, Iceland, over a 4 year period encompassing the largest Icelandic eruption in 230 years. Microseismicity extends through the usually ductile region of the Earth's crust, from 7 to 22 km depth in a subvertical column. Moment tensor solutions for an example earthquake exhibits opening tensile crack behavior. This is consistent with the deep (>7 km) seismicity being caused by the movement of melt in the normally aseismic crust. The seismically inferred melt path from the mantle source is offset laterally from the center of the Bárðarbunga caldera by ~12 km, rather than lying directly beneath it. It is likely that an aseismic melt feed also exists directly beneath the caldera and is aseismic due to elevated temperatures and pervasive partial melt under the caldera.
format Article in Journal/Newspaper
author Hudson, T.S.
White, R.S.
Greenfield, T.
Ágústsdóttir, T.
Brisbourne, A.
Green, R.G.
spellingShingle Hudson, T.S.
White, R.S.
Greenfield, T.
Ágústsdóttir, T.
Brisbourne, A.
Green, R.G.
Deep crustal melt plumbing of Bárðarbunga volcano, Iceland
author_facet Hudson, T.S.
White, R.S.
Greenfield, T.
Ágústsdóttir, T.
Brisbourne, A.
Green, R.G.
author_sort Hudson, T.S.
title Deep crustal melt plumbing of Bárðarbunga volcano, Iceland
title_short Deep crustal melt plumbing of Bárðarbunga volcano, Iceland
title_full Deep crustal melt plumbing of Bárðarbunga volcano, Iceland
title_fullStr Deep crustal melt plumbing of Bárðarbunga volcano, Iceland
title_full_unstemmed Deep crustal melt plumbing of Bárðarbunga volcano, Iceland
title_sort deep crustal melt plumbing of bárðarbunga volcano, iceland
publisher American Geophysical Union
publishDate 2017
url http://nora.nerc.ac.uk/id/eprint/517999/
https://nora.nerc.ac.uk/id/eprint/517999/1/Hudson_et_al-2017-Geophysical_Research_Letters.pdf
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL074749
genre Iceland
genre_facet Iceland
op_relation https://nora.nerc.ac.uk/id/eprint/517999/1/Hudson_et_al-2017-Geophysical_Research_Letters.pdf
Hudson, T.S. orcid:0000-0003-2944-883X
White, R.S.; Greenfield, T.; Ágústsdóttir, T.; Brisbourne, A. orcid:0000-0002-9887-7120
Green, R.G. 2017 Deep crustal melt plumbing of Bárðarbunga volcano, Iceland. Geophysical Research Letters, 44 (17). 8785-8794. https://doi.org/10.1002/2017GL074749 <https://doi.org/10.1002/2017GL074749>
op_doi https://doi.org/10.1002/2017GL074749
container_title Geophysical Research Letters
container_volume 44
container_issue 17
container_start_page 8785
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