A 10Be chronology of south-western Scandinavian Ice Sheet history during the Lateglacial period
We present 34 new cosmogenic 10Be exposure ages that constrain the Lateglacial (Bølling–Preboreal) history of the Scandinavian Ice Sheet in the Lysefjorden region, south-western Norway. We find that the classical Lysefjorden moraines, earlier thought to be entirely of Younger Dryas age, encompass th...
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ftdatacite:10.7916/d8j67gb0 2023-05-15T16:40:06+02:00 A 10Be chronology of south-western Scandinavian Ice Sheet history during the Lateglacial period Briner, Jason P. Svendsen, John Inge Mangerud, Jan Lohne, Øystein S. Young, Nicolas E. 2014 https://dx.doi.org/10.7916/d8j67gb0 https://academiccommons.columbia.edu/doi/10.7916/D8J67GB0 unknown Columbia University https://dx.doi.org/10.1002/jqs.2710 Paleoclimatology Chemistry, Analytic Climatic changes Text Articles article-journal ScholarlyArticle 2014 ftdatacite https://doi.org/10.7916/d8j67gb0 https://doi.org/10.1002/jqs.2710 2021-11-05T12:55:41Z We present 34 new cosmogenic 10Be exposure ages that constrain the Lateglacial (Bølling–Preboreal) history of the Scandinavian Ice Sheet in the Lysefjorden region, south-western Norway. We find that the classical Lysefjorden moraines, earlier thought to be entirely of Younger Dryas age, encompass three adjacent moraines attributed to at least two ice sheet advances of distinctly different ages. The 10Be age of the outermost moraine (14.0 ± 0.6 ka; n = 4) suggests that the first advance is of Older Dryas age. The innermost moraine is at least 2000 years younger and was deposited near the end of the Younger Dryas (11.4 ± 0.4 ka; n = 7). After abandonment of the innermost Lysefjorden Moraine, the ice front receded quickly towards the head of the fjord, where recession was interrupted by an advance that deposited the Trollgaren Moraine at 11.3 ± 0.9 ka (n = 5). 10Be ages from the inboard side of the Trollgaren Moraine suggest final retreat by 10.7 ± 0.3 ka (n = 7). The late culmination of the Younger Dryas advance contrasts with other sectors of the Scandinavian Ice Sheet where the margin appears to have culminated earlier during the Younger Dryas stadial, followed by retreat during the middle and late part of the Younger Dryas. Text Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) Norway |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Paleoclimatology Chemistry, Analytic Climatic changes |
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Paleoclimatology Chemistry, Analytic Climatic changes Briner, Jason P. Svendsen, John Inge Mangerud, Jan Lohne, Øystein S. Young, Nicolas E. A 10Be chronology of south-western Scandinavian Ice Sheet history during the Lateglacial period |
topic_facet |
Paleoclimatology Chemistry, Analytic Climatic changes |
description |
We present 34 new cosmogenic 10Be exposure ages that constrain the Lateglacial (Bølling–Preboreal) history of the Scandinavian Ice Sheet in the Lysefjorden region, south-western Norway. We find that the classical Lysefjorden moraines, earlier thought to be entirely of Younger Dryas age, encompass three adjacent moraines attributed to at least two ice sheet advances of distinctly different ages. The 10Be age of the outermost moraine (14.0 ± 0.6 ka; n = 4) suggests that the first advance is of Older Dryas age. The innermost moraine is at least 2000 years younger and was deposited near the end of the Younger Dryas (11.4 ± 0.4 ka; n = 7). After abandonment of the innermost Lysefjorden Moraine, the ice front receded quickly towards the head of the fjord, where recession was interrupted by an advance that deposited the Trollgaren Moraine at 11.3 ± 0.9 ka (n = 5). 10Be ages from the inboard side of the Trollgaren Moraine suggest final retreat by 10.7 ± 0.3 ka (n = 7). The late culmination of the Younger Dryas advance contrasts with other sectors of the Scandinavian Ice Sheet where the margin appears to have culminated earlier during the Younger Dryas stadial, followed by retreat during the middle and late part of the Younger Dryas. |
format |
Text |
author |
Briner, Jason P. Svendsen, John Inge Mangerud, Jan Lohne, Øystein S. Young, Nicolas E. |
author_facet |
Briner, Jason P. Svendsen, John Inge Mangerud, Jan Lohne, Øystein S. Young, Nicolas E. |
author_sort |
Briner, Jason P. |
title |
A 10Be chronology of south-western Scandinavian Ice Sheet history during the Lateglacial period |
title_short |
A 10Be chronology of south-western Scandinavian Ice Sheet history during the Lateglacial period |
title_full |
A 10Be chronology of south-western Scandinavian Ice Sheet history during the Lateglacial period |
title_fullStr |
A 10Be chronology of south-western Scandinavian Ice Sheet history during the Lateglacial period |
title_full_unstemmed |
A 10Be chronology of south-western Scandinavian Ice Sheet history during the Lateglacial period |
title_sort |
10be chronology of south-western scandinavian ice sheet history during the lateglacial period |
publisher |
Columbia University |
publishDate |
2014 |
url |
https://dx.doi.org/10.7916/d8j67gb0 https://academiccommons.columbia.edu/doi/10.7916/D8J67GB0 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
https://dx.doi.org/10.1002/jqs.2710 |
op_doi |
https://doi.org/10.7916/d8j67gb0 https://doi.org/10.1002/jqs.2710 |
_version_ |
1766030471570915328 |