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dc.contributor.authorAngulo Precker, Carlos
dc.contributor.authorPernet, Philippe
dc.contributor.authorGarcía Hernández, Cristina
dc.contributor.authorKereszturi, Gabor
dc.contributor.authorÁlvarez Valero, Antonio Miguel
dc.contributor.authorHopfenblatt Hours, Joaquín
dc.contributor.authorGómez Ballesteros, María
dc.contributor.authorOtero Pérez, Xosé Lois
dc.contributor.authorCaza Caza, Jaime Humberto
dc.contributor.authorRuiz Fernández, Jesús
dc.contributor.authorGeyer, Adelina
dc.contributor.authorAvila, Conxita
dc.date.accessioned2021-08-11T12:56:29Z
dc.date.available2021-08-11T12:56:29Z
dc.date.issued2021
dc.identifier.citationContinental Shelf Research 2021, 220: 104404. https://doi.org/10.1016/j.csr.2021.104404
dc.identifier.issn0278-4343
dc.identifier.urihttp://hdl.handle.net/10347/26769
dc.description.abstractDeception 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 geomorphological conditions still shape different benthic communities than in the surrounding coastal ecosystems. Stanley Patch, and the whole Port Foster, provide a natural laboratory for benchmarking the reestablishment of benthic communities on a volcanic-influenced shallow marine environment, offering relevant data for future studies evaluating global climate change effects on the Antarctic seabed
dc.description.sponsorshipThis work was developed within the BLUEBIO (CTM 2016-78901-R), POSVOLDEC (CTM 2016-79617-P) (AEI/FEDER-UE), CRONOANTAR (CTM 2016-77878-P), and VOLCLIMA (CGL 2015-72629-EXP/AEI) projects funded by the Spanish Government, altogether with IHM (Navy Hydrographic Spanish Institute), and IEO (Spanish Oceanographic Institute) support. C. A-P has been funded by the fundacion Ramon Areces. A.G. is grateful for her Ramon y Cajal contract (RYC-2012-11024). A-V, A.G. and G.K. also thank the assistance of the VOLGASDEC project (PGC 2018-095693-B-I00) (AEI/FEDER-UE)
dc.language.isoeng
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM 2016-78901-R/ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ CTM2016-79617-P/ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM 2016-77878-P/ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2015-72629/ES/VOLCANES Y CLIMA: REEVALUACION DE SU INTERACCION A CORTO Y LARGO PLAZO
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-095693-B-I00/ES/EVOLUCION DE VOLATILES BAJO EL VOLCAN DE ISLA DECEPCION (ANTARTIDA): PROCESOS DE DESGASIFICACION, Y POTENCIAL PELIGROSIDAD
dc.rights© 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
dc.rightsAtribución 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMarine macroinvertebrates
dc.subjectSubmarine volcano
dc.subjectGeochemistry
dc.subjectPetrology
dc.subjectBiodiversity
dc.subjectSouth Shetland islands
dc.titleVolcanism and rapid sedimentation affect the benthic communities of Deception Island, Antarctica
dc.typeinfo:eu-repo/semantics/article
dc.identifier.DOI10.1016/j.csr.2021.104404
dc.relation.publisherversionhttps://doi.org/10.1016/j.csr.2021.104404
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Edafoloxía e Química Agrícola
dc.contributor.affiliationUniversidade de Santiago de Compostela. Instituto Interdisciplinar de Tecnoloxías Ambientais (CRETUS)
dc.description.peerreviewedSI


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© 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Except where otherwise noted, this item's license is described as  © 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)





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