Greenland Ice Sheet History Since the Last Glaciation
The position of the Inland Ice margin during the late Wisconsin-Würm glaciation (ca. 15,000 yr BP) is probably marked by offshore banks (submarine moraines?) in the Davis Strait. The history of the Inland Ice since the late Wisconsin-Würm can be divided into four principal phases: (1) Relatively slo...
Published in: | Quaternary Research |
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Language: | English |
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Cambridge University Press (CUP)
1974
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Online Access: | http://dx.doi.org/10.1016/0033-5894(74)90038-6 http://api.elsevier.com/content/article/PII:0033589474900386?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589474900386?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400031288 |
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crcambridgeupr:10.1016/0033-5894(74)90038-6 2024-06-09T07:44:31+00:00 Greenland Ice Sheet History Since the Last Glaciation Ten Brink, Norman W. Weidick, Anker 1974 http://dx.doi.org/10.1016/0033-5894(74)90038-6 http://api.elsevier.com/content/article/PII:0033589474900386?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589474900386?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400031288 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 4, issue 4, page 429-440 ISSN 0033-5894 1096-0287 journal-article 1974 crcambridgeupr https://doi.org/10.1016/0033-5894(74)90038-6 2024-05-15T13:11:06Z The position of the Inland Ice margin during the late Wisconsin-Würm glaciation (ca. 15,000 yr BP) is probably marked by offshore banks (submarine moraines?) in the Davis Strait. The history of the Inland Ice since the late Wisconsin-Würm can be divided into four principal phases: (1) Relatively slow retreat from the offshore banks occurred at an average rate of approximately 1 km/100 yr until ca. 10,000 yr BP (Younger Dryas?) when the Taserqat moraine system was formed by a readvance. (2) At ca. 9500 yr BP, the rate of retreat increased markedly to about 3 km/100 yr, and although nearly 100 km of retreat occurred by ca. 6500 yr BP, it was punctuated by frequent regional reexpansions of the Inland Ice that formed extensive moraine systems at ca. 8800-8700 yr BP (Avatdleq-Sarfartôq moraines), 8400-8100 yr BP (Angujârtorfik-Fjord moraines), 7300 yr BP (Umîvît moraines), and 7200-6500 yr BP (Keglen-Mt, Keglen moraines). (3) Between 6500 and 700 yr BP, discontinous ice-margin deposits and ice-disintegration features were formed during retreat, which may have continued until the ice margin was near or behind its present position by ca. 6000 yr BP. Most of the discontinuous ice-margin deposits occur within 5–10 km of the present ice margin, and may have been formed by two main phases of readvance at ca. 4800-4000 yr BP and 2500-2000 yr BP. (4) Since a readvance at ca. 700 yr BP, the Inland Ice margin has undergone several minor retreats and readvances resulting in deposition of numerous closely spaced moraines within about 3 km of the present ice margin. The young moraines are difficult to correlate regionally, but several individual moraines have the following approximate ages: A.D. 1650, 1750, and 1880–1920. Inland Ice fluctuations in West Greenland were very closely paralleled by Holocene glacial events in East Greenland and the eastern Canadian Arctic. Such similarity of glacier behavior over a large area strongly suggests that widespread climatic change was the direct cause of Holocene glacial fluctuations. ... Article in Journal/Newspaper Arctic Davis Strait East Greenland glacier Greenland Ice Sheet Cambridge University Press Arctic Greenland Keglen ENVELOPE(-32.067,-32.067,67.867,67.867) Taserqat ENVELOPE(-52.650,-52.650,66.983,66.983) Quaternary Research 4 4 429 440 |
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Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
The position of the Inland Ice margin during the late Wisconsin-Würm glaciation (ca. 15,000 yr BP) is probably marked by offshore banks (submarine moraines?) in the Davis Strait. The history of the Inland Ice since the late Wisconsin-Würm can be divided into four principal phases: (1) Relatively slow retreat from the offshore banks occurred at an average rate of approximately 1 km/100 yr until ca. 10,000 yr BP (Younger Dryas?) when the Taserqat moraine system was formed by a readvance. (2) At ca. 9500 yr BP, the rate of retreat increased markedly to about 3 km/100 yr, and although nearly 100 km of retreat occurred by ca. 6500 yr BP, it was punctuated by frequent regional reexpansions of the Inland Ice that formed extensive moraine systems at ca. 8800-8700 yr BP (Avatdleq-Sarfartôq moraines), 8400-8100 yr BP (Angujârtorfik-Fjord moraines), 7300 yr BP (Umîvît moraines), and 7200-6500 yr BP (Keglen-Mt, Keglen moraines). (3) Between 6500 and 700 yr BP, discontinous ice-margin deposits and ice-disintegration features were formed during retreat, which may have continued until the ice margin was near or behind its present position by ca. 6000 yr BP. Most of the discontinuous ice-margin deposits occur within 5–10 km of the present ice margin, and may have been formed by two main phases of readvance at ca. 4800-4000 yr BP and 2500-2000 yr BP. (4) Since a readvance at ca. 700 yr BP, the Inland Ice margin has undergone several minor retreats and readvances resulting in deposition of numerous closely spaced moraines within about 3 km of the present ice margin. The young moraines are difficult to correlate regionally, but several individual moraines have the following approximate ages: A.D. 1650, 1750, and 1880–1920. Inland Ice fluctuations in West Greenland were very closely paralleled by Holocene glacial events in East Greenland and the eastern Canadian Arctic. Such similarity of glacier behavior over a large area strongly suggests that widespread climatic change was the direct cause of Holocene glacial fluctuations. ... |
format |
Article in Journal/Newspaper |
author |
Ten Brink, Norman W. Weidick, Anker |
spellingShingle |
Ten Brink, Norman W. Weidick, Anker Greenland Ice Sheet History Since the Last Glaciation |
author_facet |
Ten Brink, Norman W. Weidick, Anker |
author_sort |
Ten Brink, Norman W. |
title |
Greenland Ice Sheet History Since the Last Glaciation |
title_short |
Greenland Ice Sheet History Since the Last Glaciation |
title_full |
Greenland Ice Sheet History Since the Last Glaciation |
title_fullStr |
Greenland Ice Sheet History Since the Last Glaciation |
title_full_unstemmed |
Greenland Ice Sheet History Since the Last Glaciation |
title_sort |
greenland ice sheet history since the last glaciation |
publisher |
Cambridge University Press (CUP) |
publishDate |
1974 |
url |
http://dx.doi.org/10.1016/0033-5894(74)90038-6 http://api.elsevier.com/content/article/PII:0033589474900386?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589474900386?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400031288 |
long_lat |
ENVELOPE(-32.067,-32.067,67.867,67.867) ENVELOPE(-52.650,-52.650,66.983,66.983) |
geographic |
Arctic Greenland Keglen Taserqat |
geographic_facet |
Arctic Greenland Keglen Taserqat |
genre |
Arctic Davis Strait East Greenland glacier Greenland Ice Sheet |
genre_facet |
Arctic Davis Strait East Greenland glacier Greenland Ice Sheet |
op_source |
Quaternary Research volume 4, issue 4, page 429-440 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(74)90038-6 |
container_title |
Quaternary Research |
container_volume |
4 |
container_issue |
4 |
container_start_page |
429 |
op_container_end_page |
440 |
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1801373249596030976 |