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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American Geophysical Union
2017
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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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Open Polar |
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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 |
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44 |
container_issue |
17 |
container_start_page |
8785 |
op_container_end_page |
8794 |
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1766037235463880704 |