In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka
We present 10 in situ cosmogenic exposure ages from two moraines on the Isle of Skye. The Strollamus medial moraine was deposited during deglaciation of the Devensian ice sheet and yields a mean exposure age from five samples of 14.3 ± 0.9 ka. The moraine age indicates that a significant ice mass ex...
Published in: | Journal of Quaternary Science |
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2012
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/in-situ-cosmogenic-exposure-ages-from-the-isle-of-skye-northwest-scotland(60229518-2236-4825-b79f-e65a49a505a7).html https://doi.org/10.1002/jqs.1522 |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/60229518-2236-4825-b79f-e65a49a505a7 2024-06-23T07:53:21+00:00 In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka Small, David Patrick Rinterknecht, Vincent Austin, William Fabel, Derek Miguens-Rodriguez, Maria Xu, Sheng 2012-02 https://research-portal.st-andrews.ac.uk/en/researchoutput/in-situ-cosmogenic-exposure-ages-from-the-isle-of-skye-northwest-scotland(60229518-2236-4825-b79f-e65a49a505a7).html https://doi.org/10.1002/jqs.1522 eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/in-situ-cosmogenic-exposure-ages-from-the-isle-of-skye-northwest-scotland(60229518-2236-4825-b79f-e65a49a505a7).html info:eu-repo/semantics/restrictedAccess Small , D P , Rinterknecht , V , Austin , W , Fabel , D , Miguens-Rodriguez , M & Xu , S 2012 , ' In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland : implications for the timing of deglaciation and readvance from 15 to 11 ka ' , Journal of Quaternary Science , vol. 27 , no. 2 , pp. 150-158 . https://doi.org/10.1002/jqs.1522 article 2012 ftunstandrewcris https://doi.org/10.1002/jqs.1522 2024-06-13T00:33:52Z We present 10 in situ cosmogenic exposure ages from two moraines on the Isle of Skye. The Strollamus medial moraine was deposited during deglaciation of the Devensian ice sheet and yields a mean exposure age from five samples of 14.3 ± 0.9 ka. The moraine age indicates that a significant ice mass existed on Skye at the time of a regional readvance recorded in Wester Ross, northwest Scotland. Taken at face value the ages suggest that deglaciation did not occur until well into Greenland Interstade 1. The Slapin moraine represents the local limit of the Loch Lomond Readvance (LLR) and yields a mean exposure age from five samples of 11.5 ± 0.7 ka, which is consistent with deposition relating to the LLR. These ages suggest that the maximum extent may have been reached late in the stadial and that some glaciers may have remained active until after the climatic amelioration that marks its end. This scenario is considered unlikely given the nature of the climate during this period, which leads us to call for a locally calibrated production rate. Article in Journal/Newspaper Greenland Ice Sheet University of St Andrews: Research Portal Greenland Loch Lomond ENVELOPE(-125.746,-125.746,54.239,54.239) Journal of Quaternary Science 27 2 150 158 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
We present 10 in situ cosmogenic exposure ages from two moraines on the Isle of Skye. The Strollamus medial moraine was deposited during deglaciation of the Devensian ice sheet and yields a mean exposure age from five samples of 14.3 ± 0.9 ka. The moraine age indicates that a significant ice mass existed on Skye at the time of a regional readvance recorded in Wester Ross, northwest Scotland. Taken at face value the ages suggest that deglaciation did not occur until well into Greenland Interstade 1. The Slapin moraine represents the local limit of the Loch Lomond Readvance (LLR) and yields a mean exposure age from five samples of 11.5 ± 0.7 ka, which is consistent with deposition relating to the LLR. These ages suggest that the maximum extent may have been reached late in the stadial and that some glaciers may have remained active until after the climatic amelioration that marks its end. This scenario is considered unlikely given the nature of the climate during this period, which leads us to call for a locally calibrated production rate. |
format |
Article in Journal/Newspaper |
author |
Small, David Patrick Rinterknecht, Vincent Austin, William Fabel, Derek Miguens-Rodriguez, Maria Xu, Sheng |
spellingShingle |
Small, David Patrick Rinterknecht, Vincent Austin, William Fabel, Derek Miguens-Rodriguez, Maria Xu, Sheng In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka |
author_facet |
Small, David Patrick Rinterknecht, Vincent Austin, William Fabel, Derek Miguens-Rodriguez, Maria Xu, Sheng |
author_sort |
Small, David Patrick |
title |
In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka |
title_short |
In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka |
title_full |
In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka |
title_fullStr |
In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka |
title_full_unstemmed |
In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka |
title_sort |
in situ cosmogenic exposure ages from the isle of skye, northwest scotland:implications for the timing of deglaciation and readvance from 15 to 11 ka |
publishDate |
2012 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/in-situ-cosmogenic-exposure-ages-from-the-isle-of-skye-northwest-scotland(60229518-2236-4825-b79f-e65a49a505a7).html https://doi.org/10.1002/jqs.1522 |
long_lat |
ENVELOPE(-125.746,-125.746,54.239,54.239) |
geographic |
Greenland Loch Lomond |
geographic_facet |
Greenland Loch Lomond |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Small , D P , Rinterknecht , V , Austin , W , Fabel , D , Miguens-Rodriguez , M & Xu , S 2012 , ' In situ cosmogenic exposure ages from the Isle of Skye, northwest Scotland : implications for the timing of deglaciation and readvance from 15 to 11 ka ' , Journal of Quaternary Science , vol. 27 , no. 2 , pp. 150-158 . https://doi.org/10.1002/jqs.1522 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/in-situ-cosmogenic-exposure-ages-from-the-isle-of-skye-northwest-scotland(60229518-2236-4825-b79f-e65a49a505a7).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/jqs.1522 |
container_title |
Journal of Quaternary Science |
container_volume |
27 |
container_issue |
2 |
container_start_page |
150 |
op_container_end_page |
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