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...
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ftunivcam:oai:www.repository.cam.ac.uk:1810/297930 2024-01-14T10:02:25+01:00 The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records Oliva, M Antoniades, D Serrano, E Giralt, S Liu, EJ Granados, I Pla-Rabes, S Toro, M Hong, SG Vieira, G 2019-09-03 application/pdf https://www.repository.cam.ac.uk/handle/1810/297930 https://doi.org/10.17863/CAM.44984 eng eng Cambridge University Press https://www.cambridge.org/core/journals/polar-record/article/deglaciation-of-barton-peninsula-king-george-island-south-shetland-islands-antarctica-based-on-geomorphological-evidence-and-lacustrine-records/06F6E2FDC97FFD720D0CE3E3D6DBBEBD Polar Record https://www.repository.cam.ac.uk/handle/1810/297930 doi:10.17863/CAM.44984 All rights reserved 37 Earth Sciences 3709 Physical Geography and Environmental Geoscience 3705 Geology Article 2019 ftunivcam https://doi.org/10.17863/CAM.44984 2023-12-21T23:24:56Z 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. Article in Journal/Newspaper Antarc* Antarctica Collins Glacier Deception Island Ice cap King George Island South Shetland Islands Apollo - University of Cambridge Repository Barton ENVELOPE(-58.733,-58.733,-62.233,-62.233) Barton Peninsula ENVELOPE(-58.741,-58.741,-62.227,-62.227) Collins Glacier ENVELOPE(65.308,65.308,-73.829,-73.829) Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) King George Island South Shetland Islands |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
37 Earth Sciences 3709 Physical Geography and Environmental Geoscience 3705 Geology |
spellingShingle |
37 Earth Sciences 3709 Physical Geography and Environmental Geoscience 3705 Geology Oliva, M Antoniades, D Serrano, E Giralt, S Liu, EJ Granados, I Pla-Rabes, S Toro, M Hong, SG Vieira, G The deglaciation of Barton Peninsula (King George Island, South Shetland Islands, Antarctica) based on geomorphological evidence and lacustrine records |
topic_facet |
37 Earth Sciences 3709 Physical Geography and Environmental Geoscience 3705 Geology |
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. |
format |
Article in Journal/Newspaper |
author |
Oliva, M Antoniades, D Serrano, E Giralt, S Liu, EJ Granados, I Pla-Rabes, S Toro, M Hong, SG Vieira, G |
author_facet |
Oliva, M Antoniades, D Serrano, E Giralt, S Liu, EJ Granados, I Pla-Rabes, S Toro, M Hong, SG Vieira, G |
author_sort |
Oliva, M |
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 |
https://www.repository.cam.ac.uk/handle/1810/297930 https://doi.org/10.17863/CAM.44984 |
long_lat |
ENVELOPE(-58.733,-58.733,-62.233,-62.233) ENVELOPE(-58.741,-58.741,-62.227,-62.227) ENVELOPE(65.308,65.308,-73.829,-73.829) ENVELOPE(-60.633,-60.633,-62.950,-62.950) |
geographic |
Barton Barton Peninsula Collins Glacier Deception Island King George Island South Shetland Islands |
geographic_facet |
Barton Barton Peninsula Collins Glacier Deception Island King George Island South Shetland Islands |
genre |
Antarc* Antarctica Collins Glacier Deception Island Ice cap King George Island South Shetland Islands |
genre_facet |
Antarc* Antarctica Collins Glacier Deception Island Ice cap King George Island South Shetland Islands |
op_relation |
https://www.repository.cam.ac.uk/handle/1810/297930 doi:10.17863/CAM.44984 |
op_rights |
All rights reserved |
op_doi |
https://doi.org/10.17863/CAM.44984 |
_version_ |
1788057441064189952 |