10 Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum
In southernmost Greenland near Narsarsuaq, the terminal Narsarsuaq moraine was deposited well outside of a historical Little Ice Age (LIA) moraine adjacent to the modern ice margin. Using 10 Be surface exposure dating, we determine Narsarsuaq moraine abandonment at 1.51 ± 0.11 ka. A second set of 10...
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ftuglasgow:oai:eprints.gla.ac.uk:95163 2023-05-15T16:23:36+02:00 10 Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum Winsor, K. Carlson, A.E. Rood, D.H. 2014-08-15 http://eprints.gla.ac.uk/95163/ unknown Elsevier Ltd. Winsor, K., Carlson, A.E. and Rood, D.H. <http://eprints.gla.ac.uk/view/author/28408.html> (2014) 10Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum. Quaternary Science Reviews <http://eprints.gla.ac.uk/view/journal_volume/Quaternary_Science_Reviews.html>, 98, pp. 135-143. (doi:10.1016/j.quascirev.2014.04.026 <http://dx.doi.org/10.1016/j.quascirev.2014.04.026>) Articles PeerReviewed 2014 ftuglasgow https://doi.org/10.1016/j.quascirev.2014.04.026 2021-09-23T23:10:32Z In southernmost Greenland near Narsarsuaq, the terminal Narsarsuaq moraine was deposited well outside of a historical Little Ice Age (LIA) moraine adjacent to the modern ice margin. Using 10 Be surface exposure dating, we determine Narsarsuaq moraine abandonment at 1.51 ± 0.11 ka. A second set of 10 Be ages from a more ice-proximal position shows that ice has been within or at its historical (i.e., LIA) extent since 1.34 ± 0.15 ka. Notably, Narsarsuaq moraine abandonment was coincident with climate amelioration in southern Greenland. Southern Greenland warming at ∼1.5 ka was also concurrent with the end of the Roman Warm Period as climate along the northern North Atlantic sector of Europe cooled into the Dark Ages. The warming of southern Greenland and retreat of ice from the Narsarsuaq moraine is consistent with studies suggesting possible anti-phase centennial-scale climate variability between northwestern Europe and southern Greenland. Other southernmost Greenland ice-margin records do not preclude a pre-LIA ice-margin maximum, potentially concurrent with a Narsarsuaq advance prior to ∼1.51 ka, but also lack sufficient ice-margin control to confirm such a correlation. We conclude that there is a clear need to further determine whether a late-Holocene pre-LIA maximum was a local phenomenon or a regional southern Greenland ice maximum, and if this advance and retreat reflects a regional fluctuation in climate. Article in Journal/Newspaper Greenland Narsarsuaq North Atlantic University of Glasgow: Enlighten - Publications Greenland Quaternary Science Reviews 98 135 143 |
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Open Polar |
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University of Glasgow: Enlighten - Publications |
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ftuglasgow |
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unknown |
description |
In southernmost Greenland near Narsarsuaq, the terminal Narsarsuaq moraine was deposited well outside of a historical Little Ice Age (LIA) moraine adjacent to the modern ice margin. Using 10 Be surface exposure dating, we determine Narsarsuaq moraine abandonment at 1.51 ± 0.11 ka. A second set of 10 Be ages from a more ice-proximal position shows that ice has been within or at its historical (i.e., LIA) extent since 1.34 ± 0.15 ka. Notably, Narsarsuaq moraine abandonment was coincident with climate amelioration in southern Greenland. Southern Greenland warming at ∼1.5 ka was also concurrent with the end of the Roman Warm Period as climate along the northern North Atlantic sector of Europe cooled into the Dark Ages. The warming of southern Greenland and retreat of ice from the Narsarsuaq moraine is consistent with studies suggesting possible anti-phase centennial-scale climate variability between northwestern Europe and southern Greenland. Other southernmost Greenland ice-margin records do not preclude a pre-LIA ice-margin maximum, potentially concurrent with a Narsarsuaq advance prior to ∼1.51 ka, but also lack sufficient ice-margin control to confirm such a correlation. We conclude that there is a clear need to further determine whether a late-Holocene pre-LIA maximum was a local phenomenon or a regional southern Greenland ice maximum, and if this advance and retreat reflects a regional fluctuation in climate. |
format |
Article in Journal/Newspaper |
author |
Winsor, K. Carlson, A.E. Rood, D.H. |
spellingShingle |
Winsor, K. Carlson, A.E. Rood, D.H. 10 Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum |
author_facet |
Winsor, K. Carlson, A.E. Rood, D.H. |
author_sort |
Winsor, K. |
title |
10 Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum |
title_short |
10 Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum |
title_full |
10 Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum |
title_fullStr |
10 Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum |
title_full_unstemmed |
10 Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum |
title_sort |
10 be dating of the narsarsuaq moraine in southernmost greenland: evidence for a late-holocene ice advance exceeding the little ice age maximum |
publisher |
Elsevier Ltd. |
publishDate |
2014 |
url |
http://eprints.gla.ac.uk/95163/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Narsarsuaq North Atlantic |
genre_facet |
Greenland Narsarsuaq North Atlantic |
op_relation |
Winsor, K., Carlson, A.E. and Rood, D.H. <http://eprints.gla.ac.uk/view/author/28408.html> (2014) 10Be dating of the Narsarsuaq moraine in southernmost Greenland: evidence for a late-Holocene ice advance exceeding the Little Ice Age maximum. Quaternary Science Reviews <http://eprints.gla.ac.uk/view/journal_volume/Quaternary_Science_Reviews.html>, 98, pp. 135-143. (doi:10.1016/j.quascirev.2014.04.026 <http://dx.doi.org/10.1016/j.quascirev.2014.04.026>) |
op_doi |
https://doi.org/10.1016/j.quascirev.2014.04.026 |
container_title |
Quaternary Science Reviews |
container_volume |
98 |
container_start_page |
135 |
op_container_end_page |
143 |
_version_ |
1766011853766393856 |