The deglaciation of the ice-free areas in the South Shetland Islands: Examples from Byers (livingston) and barton (King George)
The process of deglaciation of the present-day ice-free environments in the Maritime Antarctica has profound geomorphological and ecological implications. However, the timing of glacier retreat is still poorly understood. This is the case of the deglaciated areas existing in Byers (Livingston Island...
Published in: | Cuaternario y Geomorfología |
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Language: | Spanish |
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Asociación Española para el Estudio del Cuaternario
2016
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Online Access: | http://hdl.handle.net/10261/136665 https://doi.org/10.17735/cyg.v30i1-2.48665 https://doi.org/10.13039/501100001871 |
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ftcsic:oai:digital.csic.es:10261/136665 2024-02-11T09:58:50+01:00 The deglaciation of the ice-free areas in the South Shetland Islands: Examples from Byers (livingston) and barton (King George) La deglaciación de las áreas libres de hielo de las islas Shetland del Sur (Antártida): Ejemplos de Byers (Livingston) y Barton (King George) Oliva, M. Antoniades, D. Giralt, Santiago Granados, I. Pla-Rabes, S. Toro, M. Sanjurjo, Jorge Fundação para a Ciência e a Tecnologia (Portugal) 2016 http://hdl.handle.net/10261/136665 https://doi.org/10.17735/cyg.v30i1-2.48665 https://doi.org/10.13039/501100001871 es spa Asociación Española para el Estudio del Cuaternario Publisher's version http://dx.doi.org/10.17735/cyg.v30i1-2.48665 Sí Cuaternario y Geomorfologia 30(1-2): 105-118 (2016) 0214-1744 http://hdl.handle.net/10261/136665 doi:10.17735/cyg.v30i1-2.48665 http://dx.doi.org/10.13039/501100001871 open Antarctica Barton peninsula Byers Peninsula Deglaciation Lake sediments artículo http://purl.org/coar/resource_type/c_6501 2016 ftcsic https://doi.org/10.17735/cyg.v30i1-2.4866510.13039/501100001871 2024-01-16T10:17:22Z The process of deglaciation of the present-day ice-free environments in the Maritime Antarctica has profound geomorphological and ecological implications. However, the timing of glacier retreat is still poorly understood. This is the case of the deglaciated areas existing in Byers (Livingston Island) and Barton (King George Island) peninsulas. The dating of the basal sediments collected from different lakes in these two peninsulas allowed inferences of the ages of formation of each lake. The integration of these ages enables the reconstruction ofthe spatial and temporal pattern of deglaciation of these areas. The chronological framework has been establishedusing two complementary techniques: radiocarbon and thermoluminescence dating. In both peninsulas the deglaciation started during the Early Holocene, around 8 ka cal BP. The areas located far away from the current ice domes and the highest peaks in the two peninsulas (nunataks) were the first areas to become ice -free. During the mid- Holocene (5-6 ka cal BP) the central part of these peninsulas was progressively deglaciated. Finally, during the Late Holocene glacier fronts remained confined to the current position defined by the present frontal moraines, with minor advances and retreats. © 2016, Asociacion Espanola para el Estudio del Cuaternario (AEQUA). All rights reserved. Este trabajo fue financiado por el proyecto de investigación HOLOANTAR (Holocene environmental change in the Maritime Antarctic.Interactions Between permafrost and the lacustrine environment) y el Programa Polar Portugués (PROPOLAR), ambos financiados por la Fundação para a Ciência e a Tecnologia de Portugal. Peer reviewed Article in Journal/Newspaper Antarc* Antarctica Antártida Ice King George Island Livingston Island permafrost South Shetland Islands Digital.CSIC (Spanish National Research Council) Barton ENVELOPE(-58.733,-58.733,-62.233,-62.233) Barton Peninsula ENVELOPE(-58.741,-58.741,-62.227,-62.227) Byers ENVELOPE(-60.283,-60.283,-63.900,-63.900) Byers peninsula ENVELOPE(-61.066,-61.066,-62.633,-62.633) Hielo ENVELOPE(-58.133,-58.133,-62.083,-62.083) islas Shetland del Sur ENVELOPE(-58.000,-58.000,-62.000,-62.000) King George Island Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Shetland del Sur ENVELOPE(-58.000,-58.000,-62.000,-62.000) South Shetland Islands Cuaternario y Geomorfología 30 1-2 105 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
Spanish |
topic |
Antarctica Barton peninsula Byers Peninsula Deglaciation Lake sediments |
spellingShingle |
Antarctica Barton peninsula Byers Peninsula Deglaciation Lake sediments Oliva, M. Antoniades, D. Giralt, Santiago Granados, I. Pla-Rabes, S. Toro, M. Sanjurjo, Jorge The deglaciation of the ice-free areas in the South Shetland Islands: Examples from Byers (livingston) and barton (King George) |
topic_facet |
Antarctica Barton peninsula Byers Peninsula Deglaciation Lake sediments |
description |
The process of deglaciation of the present-day ice-free environments in the Maritime Antarctica has profound geomorphological and ecological implications. However, the timing of glacier retreat is still poorly understood. This is the case of the deglaciated areas existing in Byers (Livingston Island) and Barton (King George Island) peninsulas. The dating of the basal sediments collected from different lakes in these two peninsulas allowed inferences of the ages of formation of each lake. The integration of these ages enables the reconstruction ofthe spatial and temporal pattern of deglaciation of these areas. The chronological framework has been establishedusing two complementary techniques: radiocarbon and thermoluminescence dating. In both peninsulas the deglaciation started during the Early Holocene, around 8 ka cal BP. The areas located far away from the current ice domes and the highest peaks in the two peninsulas (nunataks) were the first areas to become ice -free. During the mid- Holocene (5-6 ka cal BP) the central part of these peninsulas was progressively deglaciated. Finally, during the Late Holocene glacier fronts remained confined to the current position defined by the present frontal moraines, with minor advances and retreats. © 2016, Asociacion Espanola para el Estudio del Cuaternario (AEQUA). All rights reserved. Este trabajo fue financiado por el proyecto de investigación HOLOANTAR (Holocene environmental change in the Maritime Antarctic.Interactions Between permafrost and the lacustrine environment) y el Programa Polar Portugués (PROPOLAR), ambos financiados por la Fundação para a Ciência e a Tecnologia de Portugal. Peer reviewed |
author2 |
Fundação para a Ciência e a Tecnologia (Portugal) |
format |
Article in Journal/Newspaper |
author |
Oliva, M. Antoniades, D. Giralt, Santiago Granados, I. Pla-Rabes, S. Toro, M. Sanjurjo, Jorge |
author_facet |
Oliva, M. Antoniades, D. Giralt, Santiago Granados, I. Pla-Rabes, S. Toro, M. Sanjurjo, Jorge |
author_sort |
Oliva, M. |
title |
The deglaciation of the ice-free areas in the South Shetland Islands: Examples from Byers (livingston) and barton (King George) |
title_short |
The deglaciation of the ice-free areas in the South Shetland Islands: Examples from Byers (livingston) and barton (King George) |
title_full |
The deglaciation of the ice-free areas in the South Shetland Islands: Examples from Byers (livingston) and barton (King George) |
title_fullStr |
The deglaciation of the ice-free areas in the South Shetland Islands: Examples from Byers (livingston) and barton (King George) |
title_full_unstemmed |
The deglaciation of the ice-free areas in the South Shetland Islands: Examples from Byers (livingston) and barton (King George) |
title_sort |
deglaciation of the ice-free areas in the south shetland islands: examples from byers (livingston) and barton (king george) |
publisher |
Asociación Española para el Estudio del Cuaternario |
publishDate |
2016 |
url |
http://hdl.handle.net/10261/136665 https://doi.org/10.17735/cyg.v30i1-2.48665 https://doi.org/10.13039/501100001871 |
long_lat |
ENVELOPE(-58.733,-58.733,-62.233,-62.233) ENVELOPE(-58.741,-58.741,-62.227,-62.227) ENVELOPE(-60.283,-60.283,-63.900,-63.900) ENVELOPE(-61.066,-61.066,-62.633,-62.633) ENVELOPE(-58.133,-58.133,-62.083,-62.083) ENVELOPE(-58.000,-58.000,-62.000,-62.000) ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(-58.000,-58.000,-62.000,-62.000) |
geographic |
Barton Barton Peninsula Byers Byers peninsula Hielo islas Shetland del Sur King George Island Livingston Island Shetland del Sur South Shetland Islands |
geographic_facet |
Barton Barton Peninsula Byers Byers peninsula Hielo islas Shetland del Sur King George Island Livingston Island Shetland del Sur South Shetland Islands |
genre |
Antarc* Antarctica Antártida Ice King George Island Livingston Island permafrost South Shetland Islands |
genre_facet |
Antarc* Antarctica Antártida Ice King George Island Livingston Island permafrost South Shetland Islands |
op_relation |
Publisher's version http://dx.doi.org/10.17735/cyg.v30i1-2.48665 Sí Cuaternario y Geomorfologia 30(1-2): 105-118 (2016) 0214-1744 http://hdl.handle.net/10261/136665 doi:10.17735/cyg.v30i1-2.48665 http://dx.doi.org/10.13039/501100001871 |
op_rights |
open |
op_doi |
https://doi.org/10.17735/cyg.v30i1-2.4866510.13039/501100001871 |
container_title |
Cuaternario y Geomorfología |
container_volume |
30 |
container_issue |
1-2 |
container_start_page |
105 |
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1790594599846150144 |