Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica
Deception Island is amongst the most active volcanoes in the Southern Ocean, with over 20 explosive eruptions in the last ca. 200 years. The eruption that formed the caldera at Deception Island occurred 3980 ± 125 calendar years Before Present, and it is the largest eruptive event documented in Anta...
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ftubarcepubl:oai:diposit.ub.edu:2445/176666 2024-02-11T09:58:38+01:00 Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica Angulo-Preckler, Carlos Pernet, Philippe García-Hernández, Cristina Kereszturi, Gabor Alvarez-Valero, Antonio M. Hopfenblatt, Joaquín Gómez-Ballesteros, María Otero, Xosé L. Caza, Jaime Ruiz-Fernández, Jesús Geyer, Adelina Ávila Escartín, Conxita 2021-03-17 12 p. application/pdf http://hdl.handle.net/2445/176666 eng eng Elsevier Ltd Versió postprint del document publicat a: https://doi.org/10.1016/j.csr.2021.104404 Continental Shelf Research, 2021, vol. 220, p. 104404 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1016/j.csr.2021.104404 0278-4343 http://hdl.handle.net/2445/176666 711335 cc-by-nc-nd (c) Elsevier Ltd, 2021 http://creativecommons.org/licenses/by-nc-nd/3.0/es info:eu-repo/semantics/openAccess Sedimentació Antàrtida Invertebrats marins Volcans Sedimentation and deposition Antarctica Marine invertebrates Volcanoes info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion 2021 ftubarcepubl https://doi.org/10.1016/j.csr.2021.104404 2024-01-24T01:14:56Z Deception Island is amongst the most active volcanoes in the Southern Ocean, with over 20 explosive eruptions in the last ca. 200 years. The eruption that formed the caldera at Deception Island occurred 3980 ± 125 calendar years Before Present, and it is the largest eruptive event documented in Antarctica during Holocene. Since then, post-caldera volcanic activity has comprised many scattered eruptive vents across the island. Mortality of benthic organisms has been reported during the most recent eruptions occurred on the island, in 1967, 1969, and 1970 Common Era (CE), with very low abundances of organisms during the 1967-1973 CE period. Within the sea-flooded part of the caldera depression, named Port Foster, a submarine volcanic axis with several volcanic cones is observed. An interdisciplinary team sampled the best morphologically preserved volcanic edifice within Port Foster, the so-called Stanley Patch. Geophysical data traced the volcano and characterized its morphology and inner structure. Underwater scuba sampling allowed to acquire sediment and rock samples, photographs and video images of the benthic organisms and seascape. Morphology of Stanley Patch cone and textural characteristics of the collected pyroclastic rocks indicate that the volcanic edifice was originated during an explosive eruption. Furthermore, the lack of palagonitization, quenched pyroclast margins, and hyaloclastite deposits indicate that this cone has formed on-land, before the caldera floor became inundated by the seawater, highlighting the complex intra-caldera evolution of Deception Island. A sediment core from the crater was collected for sedimentological, and geochemical analysis. Antarctic climate and seasonal sea ice, together with organic degradation due to high sedimentation rates, explain the low total organic carbon data measured. The volcanic history of the island has probably avoided the development of a stable benthic community over time, similar to other Antarctic shallow communities. Moreover, the current ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Deception Island Sea ice Southern Ocean Dipòsit Digital de la Universitat de Barcelona Antarctic Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Port Foster ENVELOPE(162.967,162.967,-78.400,-78.400) Southern Ocean Stanley Patch ENVELOPE(-60.642,-60.642,-62.975,-62.975) Continental Shelf Research 220 104404 |
institution |
Open Polar |
collection |
Dipòsit Digital de la Universitat de Barcelona |
op_collection_id |
ftubarcepubl |
language |
English |
topic |
Sedimentació Antàrtida Invertebrats marins Volcans Sedimentation and deposition Antarctica Marine invertebrates Volcanoes |
spellingShingle |
Sedimentació Antàrtida Invertebrats marins Volcans Sedimentation and deposition Antarctica Marine invertebrates Volcanoes Angulo-Preckler, Carlos Pernet, Philippe García-Hernández, Cristina Kereszturi, Gabor Alvarez-Valero, Antonio M. Hopfenblatt, Joaquín Gómez-Ballesteros, María Otero, Xosé L. Caza, Jaime Ruiz-Fernández, Jesús Geyer, Adelina Ávila Escartín, Conxita Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica |
topic_facet |
Sedimentació Antàrtida Invertebrats marins Volcans Sedimentation and deposition Antarctica Marine invertebrates Volcanoes |
description |
Deception Island is amongst the most active volcanoes in the Southern Ocean, with over 20 explosive eruptions in the last ca. 200 years. The eruption that formed the caldera at Deception Island occurred 3980 ± 125 calendar years Before Present, and it is the largest eruptive event documented in Antarctica during Holocene. Since then, post-caldera volcanic activity has comprised many scattered eruptive vents across the island. Mortality of benthic organisms has been reported during the most recent eruptions occurred on the island, in 1967, 1969, and 1970 Common Era (CE), with very low abundances of organisms during the 1967-1973 CE period. Within the sea-flooded part of the caldera depression, named Port Foster, a submarine volcanic axis with several volcanic cones is observed. An interdisciplinary team sampled the best morphologically preserved volcanic edifice within Port Foster, the so-called Stanley Patch. Geophysical data traced the volcano and characterized its morphology and inner structure. Underwater scuba sampling allowed to acquire sediment and rock samples, photographs and video images of the benthic organisms and seascape. Morphology of Stanley Patch cone and textural characteristics of the collected pyroclastic rocks indicate that the volcanic edifice was originated during an explosive eruption. Furthermore, the lack of palagonitization, quenched pyroclast margins, and hyaloclastite deposits indicate that this cone has formed on-land, before the caldera floor became inundated by the seawater, highlighting the complex intra-caldera evolution of Deception Island. A sediment core from the crater was collected for sedimentological, and geochemical analysis. Antarctic climate and seasonal sea ice, together with organic degradation due to high sedimentation rates, explain the low total organic carbon data measured. The volcanic history of the island has probably avoided the development of a stable benthic community over time, similar to other Antarctic shallow communities. Moreover, the current ... |
format |
Article in Journal/Newspaper |
author |
Angulo-Preckler, Carlos Pernet, Philippe García-Hernández, Cristina Kereszturi, Gabor Alvarez-Valero, Antonio M. Hopfenblatt, Joaquín Gómez-Ballesteros, María Otero, Xosé L. Caza, Jaime Ruiz-Fernández, Jesús Geyer, Adelina Ávila Escartín, Conxita |
author_facet |
Angulo-Preckler, Carlos Pernet, Philippe García-Hernández, Cristina Kereszturi, Gabor Alvarez-Valero, Antonio M. Hopfenblatt, Joaquín Gómez-Ballesteros, María Otero, Xosé L. Caza, Jaime Ruiz-Fernández, Jesús Geyer, Adelina Ávila Escartín, Conxita |
author_sort |
Angulo-Preckler, Carlos |
title |
Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica |
title_short |
Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica |
title_full |
Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica |
title_fullStr |
Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica |
title_full_unstemmed |
Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica |
title_sort |
volcanism and rapid sedimentation affect the benthic communities of deception island, antarctica |
publisher |
Elsevier Ltd |
publishDate |
2021 |
url |
http://hdl.handle.net/2445/176666 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(162.967,162.967,-78.400,-78.400) ENVELOPE(-60.642,-60.642,-62.975,-62.975) |
geographic |
Antarctic Deception Island Port Foster Southern Ocean Stanley Patch |
geographic_facet |
Antarctic Deception Island Port Foster Southern Ocean Stanley Patch |
genre |
Antarc* Antarctic Antarctica Deception Island Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Deception Island Sea ice Southern Ocean |
op_relation |
Versió postprint del document publicat a: https://doi.org/10.1016/j.csr.2021.104404 Continental Shelf Research, 2021, vol. 220, p. 104404 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1016/j.csr.2021.104404 0278-4343 http://hdl.handle.net/2445/176666 711335 |
op_rights |
cc-by-nc-nd (c) Elsevier Ltd, 2021 http://creativecommons.org/licenses/by-nc-nd/3.0/es info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.csr.2021.104404 |
container_title |
Continental Shelf Research |
container_volume |
220 |
container_start_page |
104404 |
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1790594343512309760 |