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 four-year period encompassing the largest Icelandic eruption in 230 years. Microseismicity...
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ftunivcam:oai:www.repository.cam.ac.uk:1810/267709 2024-01-14T10:07:53+01:00 Deep crustal melt plumbing of Bárðarbunga volcano, Iceland Hudson, TS White, RS Brisbourne, A Greenfield, T Augustdottir, T Green, RG 2017-09-16 application/pdf https://www.repository.cam.ac.uk/handle/1810/267709 https://doi.org/10.17863/CAM.13639 eng eng Wiley-Blackwell http://dx.doi.org/10.1002/2017gl074749 Geophysical Research Letters https://www.repository.cam.ac.uk/handle/1810/267709 doi:10.17863/CAM.13639 melt plumbing volcano earthquake moment tensor solutions nondouble-couple source mechanisms fluid induced seismicity Article 2017 ftunivcam https://doi.org/10.17863/CAM.13639 2023-12-21T23:19:22Z 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 four-year period encompassing the largest Icelandic eruption in 230 years. Microseismicity extends through the usually ductile region of the Earth’s crust, from 7-22 km depth in a sub-vertical 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. Funding was by research grants from the NERC and the European Community’s Seventh Framework Program grant 308377 (Project FUTUREVOLC), and a number of graduate studentships from the NERC. Article in Journal/Newspaper Iceland Apollo - University of Cambridge Repository |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
melt plumbing volcano earthquake moment tensor solutions nondouble-couple source mechanisms fluid induced seismicity |
spellingShingle |
melt plumbing volcano earthquake moment tensor solutions nondouble-couple source mechanisms fluid induced seismicity Hudson, TS White, RS Brisbourne, A Greenfield, T Augustdottir, T Green, RG Deep crustal melt plumbing of Bárðarbunga volcano, Iceland |
topic_facet |
melt plumbing volcano earthquake moment tensor solutions nondouble-couple source mechanisms fluid induced seismicity |
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 four-year period encompassing the largest Icelandic eruption in 230 years. Microseismicity extends through the usually ductile region of the Earth’s crust, from 7-22 km depth in a sub-vertical 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. Funding was by research grants from the NERC and the European Community’s Seventh Framework Program grant 308377 (Project FUTUREVOLC), and a number of graduate studentships from the NERC. |
format |
Article in Journal/Newspaper |
author |
Hudson, TS White, RS Brisbourne, A Greenfield, T Augustdottir, T Green, RG |
author_facet |
Hudson, TS White, RS Brisbourne, A Greenfield, T Augustdottir, T Green, RG |
author_sort |
Hudson, TS |
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 |
Wiley-Blackwell |
publishDate |
2017 |
url |
https://www.repository.cam.ac.uk/handle/1810/267709 https://doi.org/10.17863/CAM.13639 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://www.repository.cam.ac.uk/handle/1810/267709 doi:10.17863/CAM.13639 |
op_doi |
https://doi.org/10.17863/CAM.13639 |
_version_ |
1788062293794226176 |