Deception Island, Antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field
Deception Island (DI) is an active Quaternary volcanic caldera of the South Shetlands Archipelago (Antarctica) (Fig. 1a, b).Post-caldera volcanism includes over 30 eruptions during the Holocene (e.g. Orheim 1972) with more than 20 volcanic episodes registered over the past two centuries (Orheim 1972...
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International Association of Volcanology and Chemistry of the Earth's Interior
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ftcsic:oai:digital.csic.es:10261/167257 2024-02-11T09:58:37+01:00 Deception Island, Antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field Pedrazzi, Dario Nemeth, Karoly Geyer, Adelina Álvarez-Valero, A. M. Aguirre-Díaz, Gerardo Bartolini, Stefania Geyer, Adelina Pedrazzi, Dario Bartolini, Stefania 2018 http://hdl.handle.net/10261/167257 en eng International Association of Volcanology and Chemistry of the Earth's Interior Sí Abstract volume 7th International MAAR Conference 978-84-09-01627-3 http://hdl.handle.net/10261/167257 open Crimson Hill Kroner Lake South Shetland Islands comunicación de congreso http://purl.org/coar/resource_type/c_5794 2018 ftcsic 2024-01-16T10:31:37Z Deception Island (DI) is an active Quaternary volcanic caldera of the South Shetlands Archipelago (Antarctica) (Fig. 1a, b).Post-caldera volcanism includes over 30 eruptions during the Holocene (e.g. Orheim 1972) with more than 20 volcanic episodes registered over the past two centuries (Orheim 1972; Roobol 1982; Smellie et al. 2002) including the eruptions of 1967, 1969, and 1970 (Fig. 1c). These eruptions, together with the 1992, 1999 (Ibáñez et al. 2003), and 2014–2015 (Almendros et al. 2015) unrest episodes, demonstrate that the volcanic system under DIis still very active and that the occurrence of a new eruption is likely. Recent post-caldera volcanism is dominated by hydromagmatic eruptions, with the water source being from Port Foster Bay seawater, from the underground aquifer and water from the glaciers (Baker et al. 1975; Smellie 2002; Pedrazzi et al. 2014). Even small-volume eruptions become highly explosive when located on waterlogged shorelines, or beneath ice caps (Baker et al. 1975; Smellie 2002; Pedrazzi et al. 2014). A detailed field revision of the historical (1829–1970) hydrovolcanic post-caldera volcanism at DI was carried out, with the aim of understanding how the location of a potential new eruptive vent can control magma-water interactions, and the related hazards to be expected during a new eruption on the island. Peer reviewed Conference Object Antarc* Antarctica Deception Island Foster Bay South Shetland Islands Digital.CSIC (Spanish National Research Council) Crimson Hill ENVELOPE(-60.597,-60.597,-62.939,-62.939) Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Kroner Lake ENVELOPE(-60.575,-60.575,-62.980,-62.980) Port Foster ENVELOPE(162.967,162.967,-78.400,-78.400) Smellie ENVELOPE(-61.151,-61.151,-62.652,-62.652) South Shetland Islands |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Crimson Hill Kroner Lake South Shetland Islands |
spellingShingle |
Crimson Hill Kroner Lake South Shetland Islands Pedrazzi, Dario Nemeth, Karoly Geyer, Adelina Álvarez-Valero, A. M. Aguirre-Díaz, Gerardo Bartolini, Stefania Deception Island, Antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field |
topic_facet |
Crimson Hill Kroner Lake South Shetland Islands |
description |
Deception Island (DI) is an active Quaternary volcanic caldera of the South Shetlands Archipelago (Antarctica) (Fig. 1a, b).Post-caldera volcanism includes over 30 eruptions during the Holocene (e.g. Orheim 1972) with more than 20 volcanic episodes registered over the past two centuries (Orheim 1972; Roobol 1982; Smellie et al. 2002) including the eruptions of 1967, 1969, and 1970 (Fig. 1c). These eruptions, together with the 1992, 1999 (Ibáñez et al. 2003), and 2014–2015 (Almendros et al. 2015) unrest episodes, demonstrate that the volcanic system under DIis still very active and that the occurrence of a new eruption is likely. Recent post-caldera volcanism is dominated by hydromagmatic eruptions, with the water source being from Port Foster Bay seawater, from the underground aquifer and water from the glaciers (Baker et al. 1975; Smellie 2002; Pedrazzi et al. 2014). Even small-volume eruptions become highly explosive when located on waterlogged shorelines, or beneath ice caps (Baker et al. 1975; Smellie 2002; Pedrazzi et al. 2014). A detailed field revision of the historical (1829–1970) hydrovolcanic post-caldera volcanism at DI was carried out, with the aim of understanding how the location of a potential new eruptive vent can control magma-water interactions, and the related hazards to be expected during a new eruption on the island. Peer reviewed |
author2 |
Geyer, Adelina Pedrazzi, Dario Bartolini, Stefania |
format |
Conference Object |
author |
Pedrazzi, Dario Nemeth, Karoly Geyer, Adelina Álvarez-Valero, A. M. Aguirre-Díaz, Gerardo Bartolini, Stefania |
author_facet |
Pedrazzi, Dario Nemeth, Karoly Geyer, Adelina Álvarez-Valero, A. M. Aguirre-Díaz, Gerardo Bartolini, Stefania |
author_sort |
Pedrazzi, Dario |
title |
Deception Island, Antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field |
title_short |
Deception Island, Antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field |
title_full |
Deception Island, Antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field |
title_fullStr |
Deception Island, Antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field |
title_full_unstemmed |
Deception Island, Antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field |
title_sort |
deception island, antarctica: eruptive dynamics and volcanic hazards in a post-caldera monogenetic volcanic field |
publisher |
International Association of Volcanology and Chemistry of the Earth's Interior |
publishDate |
2018 |
url |
http://hdl.handle.net/10261/167257 |
long_lat |
ENVELOPE(-60.597,-60.597,-62.939,-62.939) ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-60.575,-60.575,-62.980,-62.980) ENVELOPE(162.967,162.967,-78.400,-78.400) ENVELOPE(-61.151,-61.151,-62.652,-62.652) |
geographic |
Crimson Hill Deception Island Kroner Lake Port Foster Smellie South Shetland Islands |
geographic_facet |
Crimson Hill Deception Island Kroner Lake Port Foster Smellie South Shetland Islands |
genre |
Antarc* Antarctica Deception Island Foster Bay South Shetland Islands |
genre_facet |
Antarc* Antarctica Deception Island Foster Bay South Shetland Islands |
op_relation |
Sí Abstract volume 7th International MAAR Conference 978-84-09-01627-3 http://hdl.handle.net/10261/167257 |
op_rights |
open |
_version_ |
1790594313561833472 |