Journal article 389 views 34 downloads
Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption
Journal of Volcanology and Geothermal Research, Volume: 443, Start page: 107915
Swansea University Author:
Paul Albert
DOI (Published version): 10.1016/j.jvolgeores.2023.107915
Abstract
The Campanian Volcanic Zone (CVZ) comprises multiple active volcanoes and includes the highly productive Campi Flegrei and Ischia caldera systems. These caldera volcanoes have produced probably the largest eruptions in Europe in the past 200 ka, such as the Monte Epomeo Green Tuff (MEGT; Ischia) at...
Published in: | Journal of Volcanology and Geothermal Research |
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ISSN: | 0377-0273 1872-6097 |
Published: |
Elsevier BV
2023
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URI: | https://cronfa.swan.ac.uk/Record/cronfa64694 |
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2024-10-02T16:27:59.9775214 v2 64694 2023-10-10 Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption 7f8db9327402511d4d92849cb79af644 0000-0002-6757-1452 Paul Albert Paul Albert true false 2023-10-10 BGPS The Campanian Volcanic Zone (CVZ) comprises multiple active volcanoes and includes the highly productive Campi Flegrei and Ischia caldera systems. These caldera volcanoes have produced probably the largest eruptions in Europe in the past 200 ka, such as the Monte Epomeo Green Tuff (MEGT; Ischia) at ca. 56 ka and the Campanian Ignimbrite (CI; Campi Flegrei) at ca. 40 ka, which form widespread isochrons across the Mediterranean region. These closely-spaced volcanic centres erupt phonolitic to trachytic glass compositions that are similar, and thus it can be challenging to correlate tephra deposits to specific volcanic sources. Here we present a detailed tephrostratigraphy for pre-CI eruption activity using the units preserved within a sequence at the coastal Acquamorta outcrop, on the western side of the CI caldera rim. Both the MEGT and CI units are present in the section, and they bracket twelve eruption units that were logged and sampled. New major and trace element glass chemistry data have been acquired for these Acquamorta tephra deposits. Three eruption deposits from Ischia and nine from Campi Flegrei are identified, which helps constrain the tempo of volcanic activity of these centres between the large caldera-forming eruptions. The three Ischia tephra deposits between the MEGT and the CI are indistinguishable on both major and trace element glass chemistry and cannot be correlated to a specific or known eruption in this interval, such as the Schiappone tephra. The compositional variations between the Campi Flegrei eruptions reveal temporal shifts in the composition of the tephra deposits that reflect changes in the magmatic system prior to the CI eruption. These deposits indicate that there were at least nine eruptions from Campi Flegrei within 16 ka of the enormous CI eruption, and suggest that there was no significant period of repose before the caldera generating eruption. Journal Article Journal of Volcanology and Geothermal Research 443 107915 Elsevier BV 0377-0273 1872-6097 Tephrostratigraphy, Campi Flegrei, Ischia, Volcanism, Volcanic glass chemistry, Eruption records, Magmatic systems 1 11 2023 2023-11-01 10.1016/j.jvolgeores.2023.107915 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University NERC, UKRI FLF, NE/S007474/1, NE/S003584/1, MR/S035478/1. 2024-10-02T16:27:59.9775214 2023-10-10T12:05:56.7358354 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography S.O. Vineberg 1 R. Isaia 2 Paul Albert 0000-0002-6757-1452 3 R.J. Brown 4 V.C. Smith 5 64694__28761__90cd6ee1d25a4004842a24a700557a83.pdf 64694.pdf 2023-10-10T12:08:56.1555406 Output 3395828 application/pdf Accepted Manuscript true 2024-09-21T00:00:00.0000000 Released under the terms of a CC BY-NC-ND license. true eng https://creativecommons.org/licenses/by-nc-nd/4.0/deed.en |
title |
Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption |
spellingShingle |
Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption Paul Albert |
title_short |
Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption |
title_full |
Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption |
title_fullStr |
Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption |
title_full_unstemmed |
Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption |
title_sort |
Insights into the explosive eruption history of the Campanian volcanoes prior to the Campanian Ignimbrite eruption |
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7f8db9327402511d4d92849cb79af644 |
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7f8db9327402511d4d92849cb79af644_***_Paul Albert |
author |
Paul Albert |
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S.O. Vineberg R. Isaia Paul Albert R.J. Brown V.C. Smith |
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Journal of Volcanology and Geothermal Research |
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The Campanian Volcanic Zone (CVZ) comprises multiple active volcanoes and includes the highly productive Campi Flegrei and Ischia caldera systems. These caldera volcanoes have produced probably the largest eruptions in Europe in the past 200 ka, such as the Monte Epomeo Green Tuff (MEGT; Ischia) at ca. 56 ka and the Campanian Ignimbrite (CI; Campi Flegrei) at ca. 40 ka, which form widespread isochrons across the Mediterranean region. These closely-spaced volcanic centres erupt phonolitic to trachytic glass compositions that are similar, and thus it can be challenging to correlate tephra deposits to specific volcanic sources. Here we present a detailed tephrostratigraphy for pre-CI eruption activity using the units preserved within a sequence at the coastal Acquamorta outcrop, on the western side of the CI caldera rim. Both the MEGT and CI units are present in the section, and they bracket twelve eruption units that were logged and sampled. New major and trace element glass chemistry data have been acquired for these Acquamorta tephra deposits. Three eruption deposits from Ischia and nine from Campi Flegrei are identified, which helps constrain the tempo of volcanic activity of these centres between the large caldera-forming eruptions. The three Ischia tephra deposits between the MEGT and the CI are indistinguishable on both major and trace element glass chemistry and cannot be correlated to a specific or known eruption in this interval, such as the Schiappone tephra. The compositional variations between the Campi Flegrei eruptions reveal temporal shifts in the composition of the tephra deposits that reflect changes in the magmatic system prior to the CI eruption. These deposits indicate that there were at least nine eruptions from Campi Flegrei within 16 ka of the enormous CI eruption, and suggest that there was no significant period of repose before the caldera generating eruption. |
published_date |
2023-11-01T13:07:59Z |
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11.059359 |