High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruption
The April to May 2010 eruption of Eyjafjallajökull (Iceland) volcano was characterized by a large compositional variability of erupted products. To contribute to the understanding of the plumbing system dynamics of this volcano, we present new EMPA and LA-ICP-MS data on groundmass glasses of ash par...
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ftingv:oai:www.earth-prints.org:2122/10872 2023-05-15T16:09:25+02:00 High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruption Laeger, Kathrin Petrelli, Maurizio Andronico, Daniele Misiti, Valeria Scarlato, Piergiorgio Cimarelli, C. Taddeucci, Jacopo Del Bello, Elisabetta Perugini, D. Department of Physics and Geology, University of Perugia, Piazza dell’Università 1, 06123 Perugia, Italy Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia Department of Earth and Environmental Sciences, University of Munich, Theresienstrasse 41, 80333 Munich, Germany 2017 http://hdl.handle.net/2122/10872 https://doi.org/10.2138/am-2017-5860 en eng American Mineralogist /102 (2017) http://hdl.handle.net/2122/10872 doi:10.2138/am-2017-5860 restricted Eyjafjallajökull volcanic ash magma mixing plumbing system dynamics article 2017 ftingv https://doi.org/10.2138/am-2017-5860 2022-07-29T06:07:14Z The April to May 2010 eruption of Eyjafjallajökull (Iceland) volcano was characterized by a large compositional variability of erupted products. To contribute to the understanding of the plumbing system dynamics of this volcano, we present new EMPA and LA-ICP-MS data on groundmass glasses of ash particles and minerals erupted between April 15 and 22. The occurrence of disequilibrium textures in minerals, such as resorption and inverse zoning, indicate that open system processes were involved in determining the observed compositional variability. The variation of major and trace element data of glasses corroborates this hypothesis indicating that mixing between magma batches with different compositions interacted throughout the whole duration of the eruption. In particular, the arrival of new basaltic magma into the plumbing system of the volcano destabilized and remobilized magma batches of trachyandesite and rhyolite compositions that, according to geophysical data, might have intruded as sills over the past 20 years beneath the Eyjafjallajökull edifice. Two mixing processes are envisaged to explain the time variation of the compositions recorded by the erupted tephra. The first occurred between basaltic and trachyandesitic end-members. The second occurred between trachyandesite and rhyolites. Least-squares modeling of major elements supports this hypothesis. Furthermore, investigation of compositional histograms of trace elements allows us to estimate the initial proportions of melts that interacted to generate the compositional variability triggered by mixing of trachyandesites and rhyolites. Published 1173-1186 5V. Dinamica dei processi eruttivi e post-eruttivi JCR Journal Article in Journal/Newspaper Eyjafjallajökull Iceland Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) American Mineralogist 102 6 1173 1186 |
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Open Polar |
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Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Eyjafjallajökull volcanic ash magma mixing plumbing system dynamics |
spellingShingle |
Eyjafjallajökull volcanic ash magma mixing plumbing system dynamics Laeger, Kathrin Petrelli, Maurizio Andronico, Daniele Misiti, Valeria Scarlato, Piergiorgio Cimarelli, C. Taddeucci, Jacopo Del Bello, Elisabetta Perugini, D. High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruption |
topic_facet |
Eyjafjallajökull volcanic ash magma mixing plumbing system dynamics |
description |
The April to May 2010 eruption of Eyjafjallajökull (Iceland) volcano was characterized by a large compositional variability of erupted products. To contribute to the understanding of the plumbing system dynamics of this volcano, we present new EMPA and LA-ICP-MS data on groundmass glasses of ash particles and minerals erupted between April 15 and 22. The occurrence of disequilibrium textures in minerals, such as resorption and inverse zoning, indicate that open system processes were involved in determining the observed compositional variability. The variation of major and trace element data of glasses corroborates this hypothesis indicating that mixing between magma batches with different compositions interacted throughout the whole duration of the eruption. In particular, the arrival of new basaltic magma into the plumbing system of the volcano destabilized and remobilized magma batches of trachyandesite and rhyolite compositions that, according to geophysical data, might have intruded as sills over the past 20 years beneath the Eyjafjallajökull edifice. Two mixing processes are envisaged to explain the time variation of the compositions recorded by the erupted tephra. The first occurred between basaltic and trachyandesitic end-members. The second occurred between trachyandesite and rhyolites. Least-squares modeling of major elements supports this hypothesis. Furthermore, investigation of compositional histograms of trace elements allows us to estimate the initial proportions of melts that interacted to generate the compositional variability triggered by mixing of trachyandesites and rhyolites. Published 1173-1186 5V. Dinamica dei processi eruttivi e post-eruttivi JCR Journal |
author2 |
Department of Physics and Geology, University of Perugia, Piazza dell’Università 1, 06123 Perugia, Italy Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia Department of Earth and Environmental Sciences, University of Munich, Theresienstrasse 41, 80333 Munich, Germany |
format |
Article in Journal/Newspaper |
author |
Laeger, Kathrin Petrelli, Maurizio Andronico, Daniele Misiti, Valeria Scarlato, Piergiorgio Cimarelli, C. Taddeucci, Jacopo Del Bello, Elisabetta Perugini, D. |
author_facet |
Laeger, Kathrin Petrelli, Maurizio Andronico, Daniele Misiti, Valeria Scarlato, Piergiorgio Cimarelli, C. Taddeucci, Jacopo Del Bello, Elisabetta Perugini, D. |
author_sort |
Laeger, Kathrin |
title |
High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruption |
title_short |
High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruption |
title_full |
High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruption |
title_fullStr |
High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruption |
title_full_unstemmed |
High-resolution geochemistry of volcanic ash highlights complex magma dynamics during the Eyjafjallajökull 2010 eruption |
title_sort |
high-resolution geochemistry of volcanic ash highlights complex magma dynamics during the eyjafjallajökull 2010 eruption |
publishDate |
2017 |
url |
http://hdl.handle.net/2122/10872 https://doi.org/10.2138/am-2017-5860 |
genre |
Eyjafjallajökull Iceland |
genre_facet |
Eyjafjallajökull Iceland |
op_relation |
American Mineralogist /102 (2017) http://hdl.handle.net/2122/10872 doi:10.2138/am-2017-5860 |
op_rights |
restricted |
op_doi |
https://doi.org/10.2138/am-2017-5860 |
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American Mineralogist |
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102 |
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6 |
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1173 |
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1186 |
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