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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Online Access: | http://hdl.handle.net/10261/235627 https://doi.org/10.1016/j.csr.2021.104404 https://doi.org/10.13039/501100000706 |
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ftcsic:oai:digital.csic.es:10261/235627 2024-02-11T09:56:29+01:00 Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica Angulo-Preckler, Carlos Pernet, Philippe García-Hernandez, Cristina Kereszturi, G. Álvarez-Valero, A. M. Hopfenblatt, Joaquin Gomez-Ballesteros, María Otero, Xosé Luis Caza, Jaime Ruiz-Fernández, Jesús Geyer, Adelina Àvila, Conxita Scientific Committee on Antarctic Research Geyer, Adelina 2021-03 http://hdl.handle.net/10261/235627 https://doi.org/10.1016/j.csr.2021.104404 https://doi.org/10.13039/501100000706 en eng Elsevier Publisher's version https://doi.org/10.1016/j.csr.2021.104404 Sí Continental Shelf Research, 220: 104404 (2021) 0278-4343 http://hdl.handle.net/10261/235627 doi:10.1016/j.csr.2021.104404 http://dx.doi.org/10.13039/501100000706 open Biodiversity South Shetland islands Petrology Geochemistry Submarine volcano Marine macroinvertebrates artículo http://purl.org/coar/resource_type/c_6501 2021 ftcsic https://doi.org/10.1016/j.csr.2021.10440410.13039/501100000706 2024-01-16T11:05:43Z 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 South Shetland Islands Southern Ocean Digital.CSIC (Spanish National Research Council) Antarctic Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Port Foster ENVELOPE(162.967,162.967,-78.400,-78.400) South Shetland Islands Southern Ocean Stanley Patch ENVELOPE(-60.642,-60.642,-62.975,-62.975) Continental Shelf Research 220 104404 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Biodiversity South Shetland islands Petrology Geochemistry Submarine volcano Marine macroinvertebrates |
spellingShingle |
Biodiversity South Shetland islands Petrology Geochemistry Submarine volcano Marine macroinvertebrates Angulo-Preckler, Carlos Pernet, Philippe García-Hernandez, Cristina Kereszturi, G. Álvarez-Valero, A. M. Hopfenblatt, Joaquin Gomez-Ballesteros, María Otero, Xosé Luis Caza, Jaime Ruiz-Fernández, Jesús Geyer, Adelina Àvila, Conxita Volcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica |
topic_facet |
Biodiversity South Shetland islands Petrology Geochemistry Submarine volcano Marine macroinvertebrates |
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 ... |
author2 |
Scientific Committee on Antarctic Research Geyer, Adelina |
format |
Article in Journal/Newspaper |
author |
Angulo-Preckler, Carlos Pernet, Philippe García-Hernandez, Cristina Kereszturi, G. Álvarez-Valero, A. M. Hopfenblatt, Joaquin Gomez-Ballesteros, María Otero, Xosé Luis Caza, Jaime Ruiz-Fernández, Jesús Geyer, Adelina Àvila, Conxita |
author_facet |
Angulo-Preckler, Carlos Pernet, Philippe García-Hernandez, Cristina Kereszturi, G. Álvarez-Valero, A. M. Hopfenblatt, Joaquin Gomez-Ballesteros, María Otero, Xosé Luis Caza, Jaime Ruiz-Fernández, Jesús Geyer, Adelina Àvila, 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 |
publishDate |
2021 |
url |
http://hdl.handle.net/10261/235627 https://doi.org/10.1016/j.csr.2021.104404 https://doi.org/10.13039/501100000706 |
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 South Shetland Islands Southern Ocean Stanley Patch |
geographic_facet |
Antarctic Deception Island Port Foster South Shetland Islands Southern Ocean Stanley Patch |
genre |
Antarc* Antarctic Antarctica Deception Island Sea ice South Shetland Islands Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Deception Island Sea ice South Shetland Islands Southern Ocean |
op_relation |
Publisher's version https://doi.org/10.1016/j.csr.2021.104404 Sí Continental Shelf Research, 220: 104404 (2021) 0278-4343 http://hdl.handle.net/10261/235627 doi:10.1016/j.csr.2021.104404 http://dx.doi.org/10.13039/501100000706 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.csr.2021.10440410.13039/501100000706 |
container_title |
Continental Shelf Research |
container_volume |
220 |
container_start_page |
104404 |
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1790603549561847808 |