Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up

Antarctica has undergone several important phases of volcanism throughout its long history. It was formerly at the heart of Gondwana but, from early Jurassic time (c. 200 Ma), it commenced the prolonged process of disintegration, which resulted in the dispersal and final disposition of the southern...

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Autores: Smellie, J. L., Panter, K. S., Geyer, Adelina
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/254988
Acceso en línea:http://hdl.handle.net/10261/254988
Access Level:acceso abierto
Palabra clave:Large igneous province
Long-distance transport
South Shetland Islands
Ozone depletion
West Antarctica
Mantle plumes
New-Zealand
Peninsula
Geochronology
Patagonia
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spelling Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-upSmellie, J. L.Panter, K. S.Geyer, AdelinaLarge igneous provinceLong-distance transportSouth Shetland IslandsOzone depletionWest AntarcticaMantle plumesNew-ZealandPeninsulaGeochronologyPatagoniaAntarctica has undergone several important phases of volcanism throughout its long history. It was formerly at the heart of Gondwana but, from early Jurassic time (c. 200 Ma), it commenced the prolonged process of disintegration, which resulted in the dispersal and final disposition of the southern hemisphere continents that we are familiar with today (Veevers 2012; Storey and Granot 2021). As a consequence, volcanism has been particularly important in its construction and it is geographically widespread, although mainly located within West Antarctica (Fig. 1). Its effects have frequently been felt far outside of the continent. For example, it has been a driver of global mass extinctions (Burgess et al. 2015; Ernst and Youbi 2017) and it has potentially driven Antarctica climatically, and by implication the world, both into and out of glacials (Bay et al. 2006; McConnell et al. 2017). Conversely, Antarctica's volcanoes may have played a pivotal role in helping Life not only to survive multiple glacial episodes during the past few tens of millions of years but to undergo species diversification on the continent in spite of the dramatic climate variations (Fraser et al. 2014). Eruptions from Mount Erebus also represent a significant point source of gases and aerosols to the Austral polar troposphere, including affecting the ozone layer (Boichu et al. 2011; Zuev et al. 2015). Some of Antarctica's active volcanoes also have the potential to have a significant impact on southern hemisphere aviation (Geyer et al. 2017). Finally, Antarctica contains the world's largest and longest-lived glaciovolcanic province. The glaciovolcanic sequences contain a detailed record of the terrestrial Antarctic ice sheet going back to nearly 30 Ma and that record is now beginning to be tapped (e.g. Smellie et al. 2009; Smellie and Edwards 2016; Wilch et al. 2021). Despite these attributes, however, volcanism in Antarctica remains terra incognita to many Earth scientists, probably in large part because of its remoteness and inaccessibility.Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120212021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/254988reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1144/M55-2020-14Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2549882026-05-22T06:33:51Z
dc.title.none.fl_str_mv Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up
title Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up
spellingShingle Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up
Smellie, J. L.
Large igneous province
Long-distance transport
South Shetland Islands
Ozone depletion
West Antarctica
Mantle plumes
New-Zealand
Peninsula
Geochronology
Patagonia
title_short Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up
title_full Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up
title_fullStr Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up
title_full_unstemmed Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up
title_sort Introduction to volcanism in Antarctica: 200 million years of subduction, rifting and continental break-up
dc.creator.none.fl_str_mv Smellie, J. L.
Panter, K. S.
Geyer, Adelina
author Smellie, J. L.
author_facet Smellie, J. L.
Panter, K. S.
Geyer, Adelina
author_role author
author2 Panter, K. S.
Geyer, Adelina
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Large igneous province
Long-distance transport
South Shetland Islands
Ozone depletion
West Antarctica
Mantle plumes
New-Zealand
Peninsula
Geochronology
Patagonia
topic Large igneous province
Long-distance transport
South Shetland Islands
Ozone depletion
West Antarctica
Mantle plumes
New-Zealand
Peninsula
Geochronology
Patagonia
description Antarctica has undergone several important phases of volcanism throughout its long history. It was formerly at the heart of Gondwana but, from early Jurassic time (c. 200 Ma), it commenced the prolonged process of disintegration, which resulted in the dispersal and final disposition of the southern hemisphere continents that we are familiar with today (Veevers 2012; Storey and Granot 2021). As a consequence, volcanism has been particularly important in its construction and it is geographically widespread, although mainly located within West Antarctica (Fig. 1). Its effects have frequently been felt far outside of the continent. For example, it has been a driver of global mass extinctions (Burgess et al. 2015; Ernst and Youbi 2017) and it has potentially driven Antarctica climatically, and by implication the world, both into and out of glacials (Bay et al. 2006; McConnell et al. 2017). Conversely, Antarctica's volcanoes may have played a pivotal role in helping Life not only to survive multiple glacial episodes during the past few tens of millions of years but to undergo species diversification on the continent in spite of the dramatic climate variations (Fraser et al. 2014). Eruptions from Mount Erebus also represent a significant point source of gases and aerosols to the Austral polar troposphere, including affecting the ozone layer (Boichu et al. 2011; Zuev et al. 2015). Some of Antarctica's active volcanoes also have the potential to have a significant impact on southern hemisphere aviation (Geyer et al. 2017). Finally, Antarctica contains the world's largest and longest-lived glaciovolcanic province. The glaciovolcanic sequences contain a detailed record of the terrestrial Antarctic ice sheet going back to nearly 30 Ma and that record is now beginning to be tapped (e.g. Smellie et al. 2009; Smellie and Edwards 2016; Wilch et al. 2021). Despite these attributes, however, volcanism in Antarctica remains terra incognita to many Earth scientists, probably in large part because of its remoteness and inaccessibility.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/254988
url http://hdl.handle.net/10261/254988
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1144/M55-2020-14
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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