Can vesicle size distributions assess eruption intensity during volcanic activity?
International audience Abstract. We studied three-dimensional (3-D) vesicle size distributions by X-ray microtomography in scoria collected during the relatively quiescent Phase II of the April–May 2010 eruption at Eyjafjallajökull volcano, Iceland. Our goal was to compare cumulative vesicle size di...
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Online Access: | https://hal.archives-ouvertes.fr/hal-03896708 https://doi.org/10.5194/se-4-373-2013 |
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ftunivnantes:oai:HAL:hal-03896708v1 2023-05-15T16:09:25+02:00 Can vesicle size distributions assess eruption intensity during volcanic activity? Larue, Alexandra Baker, D. Polacci, M. Allard, Patrick Sodini, N. McGill University = Université McGill Montréal, Canada Laboratory for Atmospheric and Space Physics Boulder (LASP) University of Colorado Boulder Istituto Nazionale di Geofisica e Vulcanologia Sezione di Palermo Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) 2013 https://hal.archives-ouvertes.fr/hal-03896708 https://doi.org/10.5194/se-4-373-2013 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/se-4-373-2013 hal-03896708 https://hal.archives-ouvertes.fr/hal-03896708 doi:10.5194/se-4-373-2013 ISSN: 1869-9510 EISSN: 1869-9529 Solid Earth https://hal.archives-ouvertes.fr/hal-03896708 Solid Earth, 2013, 4 (2), pp.373-380. ⟨10.5194/se-4-373-2013⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2013 ftunivnantes https://doi.org/10.5194/se-4-373-2013 2022-12-13T23:47:42Z International audience Abstract. We studied three-dimensional (3-D) vesicle size distributions by X-ray microtomography in scoria collected during the relatively quiescent Phase II of the April–May 2010 eruption at Eyjafjallajökull volcano, Iceland. Our goal was to compare cumulative vesicle size distributions (VSDs) measured in these samples with those found in Stromboli volcano, Italy. Stromboli was chosen because its VSDs are well-characterized and show a correlation with eruption intensity: typical Strombolian activity produces VSDs with power-law exponents near 1, whereas larger and more energetic vulcanian-type explosions and Plinian eruptions produce VSDs with power-law exponents near 1.5. The first hypothesis to be tested was whether or not the samples studied in this work would contain VSDs similar to normal Strombolian products, display higher power-law exponents, or be described by exponential functions. Before making this comparison, we tested a second hypothesis, which was that the magma–water interactions in the Eyjafjallajökull eruption might have a significant effect on the VSDs. We performed 1 bar bubble-growth experiments in which the samples were inundated with water and compared them to similar control experiments without water inundation. No significant differences between the VSDs of the two sets of experiments were found, and the second hypothesis is not supported by the experimental evidence. The Phase II Eyjafjallajökull VSDs are described by power-law exponents of ~0.8, typical of normal Strombolian eruptions, and support the first hypothesis. The comparable VSDs and behavior of Phase II of the Eyjafjallajökull 2010 eruption to Stromboli are interpreted to be a reflection of similar conduit systems in both volcanoes that are being constantly fed by the ascent of mingled/mixed magma from depth. Such behavior implies that continued activity during Phase II of the Eyjafjallajökull eruption could be expected and would have been predicted, had our VSDs been measured in real time during the ... Article in Journal/Newspaper Eyjafjallajökull Iceland Université de Nantes: HAL-UNIV-NANTES Solid Earth 4 2 373 380 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Larue, Alexandra Baker, D. Polacci, M. Allard, Patrick Sodini, N. Can vesicle size distributions assess eruption intensity during volcanic activity? |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Abstract. We studied three-dimensional (3-D) vesicle size distributions by X-ray microtomography in scoria collected during the relatively quiescent Phase II of the April–May 2010 eruption at Eyjafjallajökull volcano, Iceland. Our goal was to compare cumulative vesicle size distributions (VSDs) measured in these samples with those found in Stromboli volcano, Italy. Stromboli was chosen because its VSDs are well-characterized and show a correlation with eruption intensity: typical Strombolian activity produces VSDs with power-law exponents near 1, whereas larger and more energetic vulcanian-type explosions and Plinian eruptions produce VSDs with power-law exponents near 1.5. The first hypothesis to be tested was whether or not the samples studied in this work would contain VSDs similar to normal Strombolian products, display higher power-law exponents, or be described by exponential functions. Before making this comparison, we tested a second hypothesis, which was that the magma–water interactions in the Eyjafjallajökull eruption might have a significant effect on the VSDs. We performed 1 bar bubble-growth experiments in which the samples were inundated with water and compared them to similar control experiments without water inundation. No significant differences between the VSDs of the two sets of experiments were found, and the second hypothesis is not supported by the experimental evidence. The Phase II Eyjafjallajökull VSDs are described by power-law exponents of ~0.8, typical of normal Strombolian eruptions, and support the first hypothesis. The comparable VSDs and behavior of Phase II of the Eyjafjallajökull 2010 eruption to Stromboli are interpreted to be a reflection of similar conduit systems in both volcanoes that are being constantly fed by the ascent of mingled/mixed magma from depth. Such behavior implies that continued activity during Phase II of the Eyjafjallajökull eruption could be expected and would have been predicted, had our VSDs been measured in real time during the ... |
author2 |
McGill University = Université McGill Montréal, Canada Laboratory for Atmospheric and Space Physics Boulder (LASP) University of Colorado Boulder Istituto Nazionale di Geofisica e Vulcanologia Sezione di Palermo Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
format |
Article in Journal/Newspaper |
author |
Larue, Alexandra Baker, D. Polacci, M. Allard, Patrick Sodini, N. |
author_facet |
Larue, Alexandra Baker, D. Polacci, M. Allard, Patrick Sodini, N. |
author_sort |
Larue, Alexandra |
title |
Can vesicle size distributions assess eruption intensity during volcanic activity? |
title_short |
Can vesicle size distributions assess eruption intensity during volcanic activity? |
title_full |
Can vesicle size distributions assess eruption intensity during volcanic activity? |
title_fullStr |
Can vesicle size distributions assess eruption intensity during volcanic activity? |
title_full_unstemmed |
Can vesicle size distributions assess eruption intensity during volcanic activity? |
title_sort |
can vesicle size distributions assess eruption intensity during volcanic activity? |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.archives-ouvertes.fr/hal-03896708 https://doi.org/10.5194/se-4-373-2013 |
genre |
Eyjafjallajökull Iceland |
genre_facet |
Eyjafjallajökull Iceland |
op_source |
ISSN: 1869-9510 EISSN: 1869-9529 Solid Earth https://hal.archives-ouvertes.fr/hal-03896708 Solid Earth, 2013, 4 (2), pp.373-380. ⟨10.5194/se-4-373-2013⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/se-4-373-2013 hal-03896708 https://hal.archives-ouvertes.fr/hal-03896708 doi:10.5194/se-4-373-2013 |
op_doi |
https://doi.org/10.5194/se-4-373-2013 |
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Solid Earth |
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4 |
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2 |
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373 |
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380 |
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