The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records
Barton Peninsula is an ice-free area located in the southwest corner of King George Island (South Shetland Islands, Antarctica). Following the Last Glacial Maximum, several geomorphological features developed in newly exposed ice-free terrain and their distribution provide insights about past enviro...
Published in: | Polar Record |
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Main Authors: | , , , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Cambridge University Press
2019
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Online Access: | http://hdl.handle.net/10261/190741 https://doi.org/10.1017/S0032247419000469 https://doi.org/10.13039/501100010198 https://doi.org/10.13039/501100001871 https://doi.org/10.13039/501100002809 |
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ftcsic:oai:digital.csic.es:10261/190741 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Tephrostratigraphy Lake records Geomorphology Deglaciation Barton Peninsula |
spellingShingle |
Tephrostratigraphy Lake records Geomorphology Deglaciation Barton Peninsula Oliva, Marc Antoniades, Dermot Serrano, Enrique Giralt, Santiago Liu, E. J. Granados, I. Pla-Rabes, S. Toro, M. Hong, S. G. Vieira, Gonçalo The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records |
topic_facet |
Tephrostratigraphy Lake records Geomorphology Deglaciation Barton Peninsula |
description |
Barton Peninsula is an ice-free area located in the southwest corner of King George Island (South Shetland Islands, Antarctica). Following the Last Glacial Maximum, several geomorphological features developed in newly exposed ice-free terrain and their distribution provide insights about past environmental evolution of the area. Three moraine systems are indicative of three main glacial phases within the long-term glacial retreat, which also favoured the development of numerous lakes. Five of these lakes were cored to understand in greater detail the pattern of deglaciation through the study of lacustrine records. Radiocarbon dates from basal lacustrine sediments enabled the reconstruction of the chronology of Holocene glacial retreat. Tephra layers present in lake sediments provided additional independent age constraints on environmental changes based on geochemical and geochronological correlation with Deception Island-derived tephra. Shrinking of the Collins Glacier exposed the southern coastal fringe of Barton Peninsula at 8 cal ky BP. After a period of relative stability during the mid-Holocene, the ice cap started retreating northwards after 3.7 cal ky BP, confining some glaciers within valleys as shown by moraine systems. Lake sediments confirm a period of relative glacial stability during the last 2.4 cal ky BP. © Cambridge University Press 2019. The authors are grateful to the Portuguese Polar Program (PROPOLAR), the Korea Polar Research Institute (KOPRI) and the Chilean Antarctic Institute (INACH) for providing logistic support for the fieldwork. Marc Oliva is supported by the Ramón y Cajal Program (RYC-2015-17597) and the Research Group ANTALP (Antarctic, Arctic, Alpine Environments; 2017-SGR-1102) funded by the Government of Catalonia through the AGAUR agency. The work complements the research topics examined in the PALEOGREEN (CTM2017-87976-P) and CRONOANTAR (CTM2016-77878-P) projects of the Ministry of Economy, Industry and Competitiveness, Spain, and the projects Analysis of nunataks of the ... |
author2 |
Instituto Antártico Chileno Generalitat de Catalunya Ministerio de Economía, Industria y Competitividad (España) Fundação para a Ciência e a Tecnologia (Portugal) Giralt, Santiago |
format |
Article in Journal/Newspaper |
author |
Oliva, Marc Antoniades, Dermot Serrano, Enrique Giralt, Santiago Liu, E. J. Granados, I. Pla-Rabes, S. Toro, M. Hong, S. G. Vieira, Gonçalo |
author_facet |
Oliva, Marc Antoniades, Dermot Serrano, Enrique Giralt, Santiago Liu, E. J. Granados, I. Pla-Rabes, S. Toro, M. Hong, S. G. Vieira, Gonçalo |
author_sort |
Oliva, Marc |
title |
The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records |
title_short |
The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records |
title_full |
The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records |
title_fullStr |
The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records |
title_full_unstemmed |
The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records |
title_sort |
deglaciation of barton peninsula (king george island, south shetland islands, antarctica) based on geomorphological evidence and lacustrine records |
publisher |
Cambridge University Press |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/190741 https://doi.org/10.1017/S0032247419000469 https://doi.org/10.13039/501100010198 https://doi.org/10.13039/501100001871 https://doi.org/10.13039/501100002809 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-58.733,-58.733,-62.233,-62.233) ENVELOPE(-60.783,-60.783,-62.450,-62.450) ENVELOPE(-60.783,-60.783,-62.467,-62.467) ENVELOPE(-58.741,-58.741,-62.227,-62.227) ENVELOPE(65.308,65.308,-73.829,-73.829) |
geographic |
Arctic Antarctic King George Island South Shetland Islands Deception Island Barton Oliva Inach Barton Peninsula Collins Glacier |
geographic_facet |
Arctic Antarctic King George Island South Shetland Islands Deception Island Barton Oliva Inach Barton Peninsula Collins Glacier |
genre |
Antarc* Antarctic Antarctica Arctic Collins Glacier Deception Island Ice cap King George Island Korea Polar Research Institute Polar Record South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctica Arctic Collins Glacier Deception Island Ice cap King George Island Korea Polar Research Institute Polar Record South Shetland Islands |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# MICIU/ICTI2017-2020/CTM2017-87976-P info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-77878-P Postprint https://doi.org/10.1017/S0032247419000469 Sí Polar Record, 55 (3): 177-188 (2019) 0032-2474 http://hdl.handle.net/10261/190741 doi:10.1017/S0032247419000469 1475-3057 http://dx.doi.org/10.13039/501100010198 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.13039/501100002809 |
op_rights |
open |
op_doi |
https://doi.org/10.1017/S003224741900046910.13039/50110001019810.13039/50110000187110.13039/501100002809 |
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Polar Record |
container_volume |
55 |
container_issue |
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container_start_page |
177 |
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ftcsic:oai:digital.csic.es:10261/190741 2024-02-11T09:57:35+01:00 The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records Oliva, Marc Antoniades, Dermot Serrano, Enrique Giralt, Santiago Liu, E. J. Granados, I. Pla-Rabes, S. Toro, M. Hong, S. G. Vieira, Gonçalo Instituto Antártico Chileno Generalitat de Catalunya Ministerio de Economía, Industria y Competitividad (España) Fundação para a Ciência e a Tecnologia (Portugal) Giralt, Santiago 2019 http://hdl.handle.net/10261/190741 https://doi.org/10.1017/S0032247419000469 https://doi.org/10.13039/501100010198 https://doi.org/10.13039/501100001871 https://doi.org/10.13039/501100002809 en eng Cambridge University Press #PLACEHOLDER_PARENT_METADATA_VALUE# MICIU/ICTI2017-2020/CTM2017-87976-P info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-77878-P Postprint https://doi.org/10.1017/S0032247419000469 Sí Polar Record, 55 (3): 177-188 (2019) 0032-2474 http://hdl.handle.net/10261/190741 doi:10.1017/S0032247419000469 1475-3057 http://dx.doi.org/10.13039/501100010198 http://dx.doi.org/10.13039/501100001871 http://dx.doi.org/10.13039/501100002809 open Tephrostratigraphy Lake records Geomorphology Deglaciation Barton Peninsula artículo http://purl.org/coar/resource_type/c_6501 2019 ftcsic https://doi.org/10.1017/S003224741900046910.13039/50110001019810.13039/50110000187110.13039/501100002809 2024-01-16T10:43:42Z Barton Peninsula is an ice-free area located in the southwest corner of King George Island (South Shetland Islands, Antarctica). Following the Last Glacial Maximum, several geomorphological features developed in newly exposed ice-free terrain and their distribution provide insights about past environmental evolution of the area. Three moraine systems are indicative of three main glacial phases within the long-term glacial retreat, which also favoured the development of numerous lakes. Five of these lakes were cored to understand in greater detail the pattern of deglaciation through the study of lacustrine records. Radiocarbon dates from basal lacustrine sediments enabled the reconstruction of the chronology of Holocene glacial retreat. Tephra layers present in lake sediments provided additional independent age constraints on environmental changes based on geochemical and geochronological correlation with Deception Island-derived tephra. Shrinking of the Collins Glacier exposed the southern coastal fringe of Barton Peninsula at 8 cal ky BP. After a period of relative stability during the mid-Holocene, the ice cap started retreating northwards after 3.7 cal ky BP, confining some glaciers within valleys as shown by moraine systems. Lake sediments confirm a period of relative glacial stability during the last 2.4 cal ky BP. © Cambridge University Press 2019. The authors are grateful to the Portuguese Polar Program (PROPOLAR), the Korea Polar Research Institute (KOPRI) and the Chilean Antarctic Institute (INACH) for providing logistic support for the fieldwork. Marc Oliva is supported by the Ramón y Cajal Program (RYC-2015-17597) and the Research Group ANTALP (Antarctic, Arctic, Alpine Environments; 2017-SGR-1102) funded by the Government of Catalonia through the AGAUR agency. The work complements the research topics examined in the PALEOGREEN (CTM2017-87976-P) and CRONOANTAR (CTM2016-77878-P) projects of the Ministry of Economy, Industry and Competitiveness, Spain, and the projects Analysis of nunataks of the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Collins Glacier Deception Island Ice cap King George Island Korea Polar Research Institute Polar Record South Shetland Islands Digital.CSIC (Spanish National Research Council) Arctic Antarctic King George Island South Shetland Islands Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Barton ENVELOPE(-58.733,-58.733,-62.233,-62.233) Oliva ENVELOPE(-60.783,-60.783,-62.450,-62.450) Inach ENVELOPE(-60.783,-60.783,-62.467,-62.467) Barton Peninsula ENVELOPE(-58.741,-58.741,-62.227,-62.227) Collins Glacier ENVELOPE(65.308,65.308,-73.829,-73.829) Polar Record 55 3 177 188 |