Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time
We present a 10 Be chronology of late glacial to early Holocene fluctuations of a Greenland ice sheet outlet glacier and the adjacent Milne Land ice cap in central East Greenland. Ages of boulders on bedrock indicate that both ice masses receded during the Younger Dryas (YD), likely due to rising su...
Published in: | Geophysical Research Letters |
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Online Access: | https://pure.au.dk/portal/da/publications/coeval-fluctuations-of-the-greenland-ice-sheet-and-a-local-glacier-central-east-greenland-during-late-glacial-and-early-holocene-time(5c1c63f5-af87-4470-94c9-31da9c7b512a).html https://doi.org/10.1002/2015GL067108 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/5c1c63f5-af87-4470-94c9-31da9c7b512a 2023-07-30T04:03:14+02:00 Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time Levy, Laura B. Kelly, Meredith A. Lowell, Thomas V. Hall, Brenda L. Howley, Jennifer A. Smith, Colby A. 2016-02-28 https://pure.au.dk/portal/da/publications/coeval-fluctuations-of-the-greenland-ice-sheet-and-a-local-glacier-central-east-greenland-during-late-glacial-and-early-holocene-time(5c1c63f5-af87-4470-94c9-31da9c7b512a).html https://doi.org/10.1002/2015GL067108 eng eng info:eu-repo/semantics/restrictedAccess Levy , L B , Kelly , M A , Lowell , T V , Hall , B L , Howley , J A & Smith , C A 2016 , ' Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time ' , Geophysical Research Letters , vol. 43 , no. 4 , pp. 1623–1631 . https://doi.org/10.1002/2015GL067108 Be dating Greenland Late glacial Moraines Preboreal Younger Dryas article 2016 ftuniaarhuspubl https://doi.org/10.1002/2015GL067108 2023-07-12T22:57:50Z We present a 10 Be chronology of late glacial to early Holocene fluctuations of a Greenland ice sheet outlet glacier and the adjacent Milne Land ice cap in central East Greenland. Ages of boulders on bedrock indicate that both ice masses receded during the Younger Dryas (YD), likely due to rising summer temperatures. Since Greenland ice core records register cold mean annual temperatures throughout the YD, these ice-marginal data support climate conditions characterized by strong seasonality. The ice sheet outlet glacier and ice cap deposited inner Milne Land Stade moraines at 11.4±0.8ka and 11.4±0.6ka, respectively (mean moraine ages and 1σ uncertainties). Based on the coeval moraine ages, we suggest that both ice masses responded to climate conditions acting on the ice margins, specifically ablation. Moreover, the ice sheet responded sensitively (i.e., on the same time scale as a small ice cap) to climate conditions. Key Points: Beryllium-10 ages show deglaciation during the Younger Dryas in central East Greenland The inner Milne Land Stade moraines of the Greenland ice sheet and a local glacier date to ~11.4ka Both ice masses responded in unison to late glacial and early Holocene climate conditions Article in Journal/Newspaper East Greenland glacier Greenland Greenland ice core Ice cap ice core Ice Sheet Milne Land Aarhus University: Research Greenland Milne Land ENVELOPE(-26.750,-26.750,70.683,70.683) Geophysical Research Letters 43 4 1623 1631 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Be dating Greenland Late glacial Moraines Preboreal Younger Dryas |
spellingShingle |
Be dating Greenland Late glacial Moraines Preboreal Younger Dryas Levy, Laura B. Kelly, Meredith A. Lowell, Thomas V. Hall, Brenda L. Howley, Jennifer A. Smith, Colby A. Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time |
topic_facet |
Be dating Greenland Late glacial Moraines Preboreal Younger Dryas |
description |
We present a 10 Be chronology of late glacial to early Holocene fluctuations of a Greenland ice sheet outlet glacier and the adjacent Milne Land ice cap in central East Greenland. Ages of boulders on bedrock indicate that both ice masses receded during the Younger Dryas (YD), likely due to rising summer temperatures. Since Greenland ice core records register cold mean annual temperatures throughout the YD, these ice-marginal data support climate conditions characterized by strong seasonality. The ice sheet outlet glacier and ice cap deposited inner Milne Land Stade moraines at 11.4±0.8ka and 11.4±0.6ka, respectively (mean moraine ages and 1σ uncertainties). Based on the coeval moraine ages, we suggest that both ice masses responded to climate conditions acting on the ice margins, specifically ablation. Moreover, the ice sheet responded sensitively (i.e., on the same time scale as a small ice cap) to climate conditions. Key Points: Beryllium-10 ages show deglaciation during the Younger Dryas in central East Greenland The inner Milne Land Stade moraines of the Greenland ice sheet and a local glacier date to ~11.4ka Both ice masses responded in unison to late glacial and early Holocene climate conditions |
format |
Article in Journal/Newspaper |
author |
Levy, Laura B. Kelly, Meredith A. Lowell, Thomas V. Hall, Brenda L. Howley, Jennifer A. Smith, Colby A. |
author_facet |
Levy, Laura B. Kelly, Meredith A. Lowell, Thomas V. Hall, Brenda L. Howley, Jennifer A. Smith, Colby A. |
author_sort |
Levy, Laura B. |
title |
Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time |
title_short |
Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time |
title_full |
Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time |
title_fullStr |
Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time |
title_full_unstemmed |
Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time |
title_sort |
coeval fluctuations of the greenland ice sheet and a local glacier, central east greenland, during late glacial and early holocene time |
publishDate |
2016 |
url |
https://pure.au.dk/portal/da/publications/coeval-fluctuations-of-the-greenland-ice-sheet-and-a-local-glacier-central-east-greenland-during-late-glacial-and-early-holocene-time(5c1c63f5-af87-4470-94c9-31da9c7b512a).html https://doi.org/10.1002/2015GL067108 |
long_lat |
ENVELOPE(-26.750,-26.750,70.683,70.683) |
geographic |
Greenland Milne Land |
geographic_facet |
Greenland Milne Land |
genre |
East Greenland glacier Greenland Greenland ice core Ice cap ice core Ice Sheet Milne Land |
genre_facet |
East Greenland glacier Greenland Greenland ice core Ice cap ice core Ice Sheet Milne Land |
op_source |
Levy , L B , Kelly , M A , Lowell , T V , Hall , B L , Howley , J A & Smith , C A 2016 , ' Coeval fluctuations of the Greenland ice sheet and a local glacier, central East Greenland, during late glacial and early Holocene time ' , Geophysical Research Letters , vol. 43 , no. 4 , pp. 1623–1631 . https://doi.org/10.1002/2015GL067108 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/2015GL067108 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
4 |
container_start_page |
1623 |
op_container_end_page |
1631 |
_version_ |
1772814186573725696 |