MIS 3 age of the Veiki moraine in N Sweden–Dating the landform record of an intermediate-sized ice sheet in Scandinavia
The Veiki moraine in northern Sweden, a geomorphologically distinct landscape of ice-walled lake plains, has been interpreted to represent the former margin of an intermediate-sized pre–Last Glacial Maximum (LGM) Fennoscandian ice sheet, but its age is debated as either marine isotope stage (MIS) 5c...
Published in: | Arctic, Antarctic, and Alpine Research |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Institute of Arctic and Alpine Research
2022
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Online Access: | https://lup.lub.lu.se/record/a9816a76-ff10-434c-9a8e-d82dab9f31a4 https://doi.org/10.1080/15230430.2022.2091308 |
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ftulundlup:oai:lup.lub.lu.se:a9816a76-ff10-434c-9a8e-d82dab9f31a4 2023-05-15T14:14:26+02:00 MIS 3 age of the Veiki moraine in N Sweden–Dating the landform record of an intermediate-sized ice sheet in Scandinavia Alexanderson, Helena Hättestrand, Martina Lindqvist, Mimmi A. Sigfúsdóttir, Thorbjörg 2022 https://lup.lub.lu.se/record/a9816a76-ff10-434c-9a8e-d82dab9f31a4 https://doi.org/10.1080/15230430.2022.2091308 eng eng Institute of Arctic and Alpine Research https://lup.lub.lu.se/record/a9816a76-ff10-434c-9a8e-d82dab9f31a4 http://dx.doi.org/10.1080/15230430.2022.2091308 scopus:85134158644 Arctic, Antarctic, and Alpine Research; 54(1), pp 239-261 (2022) ISSN: 1523-0430 Geology Fennoscandian ice sheet Ice-walled lake plain luminescence dating Middle Weichselian OSL contributiontojournal/article info:eu-repo/semantics/article text 2022 ftulundlup https://doi.org/10.1080/15230430.2022.2091308 2023-02-01T23:38:29Z The Veiki moraine in northern Sweden, a geomorphologically distinct landscape of ice-walled lake plains, has been interpreted to represent the former margin of an intermediate-sized pre–Last Glacial Maximum (LGM) Fennoscandian ice sheet, but its age is debated as either marine isotope stage (MIS) 5c or MIS 3. We have applied optically stimulated luminescence (OSL) and radiocarbon dating to four sites within the northern part of the Veiki moraine to establish its chronology. The radiocarbon ages provide only minimum ages and most OSL ages have low precision due to poor luminescence characteristics and problems with incomplete bleaching, leading to two alternative ages. In either case, the OSL dating places the Veiki moraine formation in MIS 3 (best estimate 56–39 ka). Sedimentation continued in the low-lying centers of some plateaus (ice-walled lake plains) during MIS 3 and during the Holocene, with a break during the Last Glacial Maximum when the area was ice covered. We speculatively constrain the broad timing further by relating the sequence of events to other climate records. We suggest that ice margin retreat to the west of the Veiki area took place during Greenland Interstadial (GI) 16.1 (58.0–56.5 ka) and that limited ice advances, which led to debris-covered ice margins in the Veiki zone, occurred during the following stadials GS-16.1 to 15.1 (56.5–54.2 ka). The GI-14 interstadial, which began 54.2 ka and lasted ~5.9 ka, could then be the period when the ice within the dead-ice landscape melted, first leading to ice-walled lakes and later to the inversed topography characteristic of the Veiki landscape. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Fennoscandian Greenland Ice Sheet Northern Sweden Lund University Publications (LUP) Greenland Veiki ENVELOPE(20.517,20.517,67.333,67.333) Arctic, Antarctic, and Alpine Research 54 1 239 261 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology Fennoscandian ice sheet Ice-walled lake plain luminescence dating Middle Weichselian OSL |
spellingShingle |
Geology Fennoscandian ice sheet Ice-walled lake plain luminescence dating Middle Weichselian OSL Alexanderson, Helena Hättestrand, Martina Lindqvist, Mimmi A. Sigfúsdóttir, Thorbjörg MIS 3 age of the Veiki moraine in N Sweden–Dating the landform record of an intermediate-sized ice sheet in Scandinavia |
topic_facet |
Geology Fennoscandian ice sheet Ice-walled lake plain luminescence dating Middle Weichselian OSL |
description |
The Veiki moraine in northern Sweden, a geomorphologically distinct landscape of ice-walled lake plains, has been interpreted to represent the former margin of an intermediate-sized pre–Last Glacial Maximum (LGM) Fennoscandian ice sheet, but its age is debated as either marine isotope stage (MIS) 5c or MIS 3. We have applied optically stimulated luminescence (OSL) and radiocarbon dating to four sites within the northern part of the Veiki moraine to establish its chronology. The radiocarbon ages provide only minimum ages and most OSL ages have low precision due to poor luminescence characteristics and problems with incomplete bleaching, leading to two alternative ages. In either case, the OSL dating places the Veiki moraine formation in MIS 3 (best estimate 56–39 ka). Sedimentation continued in the low-lying centers of some plateaus (ice-walled lake plains) during MIS 3 and during the Holocene, with a break during the Last Glacial Maximum when the area was ice covered. We speculatively constrain the broad timing further by relating the sequence of events to other climate records. We suggest that ice margin retreat to the west of the Veiki area took place during Greenland Interstadial (GI) 16.1 (58.0–56.5 ka) and that limited ice advances, which led to debris-covered ice margins in the Veiki zone, occurred during the following stadials GS-16.1 to 15.1 (56.5–54.2 ka). The GI-14 interstadial, which began 54.2 ka and lasted ~5.9 ka, could then be the period when the ice within the dead-ice landscape melted, first leading to ice-walled lakes and later to the inversed topography characteristic of the Veiki landscape. |
format |
Article in Journal/Newspaper |
author |
Alexanderson, Helena Hättestrand, Martina Lindqvist, Mimmi A. Sigfúsdóttir, Thorbjörg |
author_facet |
Alexanderson, Helena Hättestrand, Martina Lindqvist, Mimmi A. Sigfúsdóttir, Thorbjörg |
author_sort |
Alexanderson, Helena |
title |
MIS 3 age of the Veiki moraine in N Sweden–Dating the landform record of an intermediate-sized ice sheet in Scandinavia |
title_short |
MIS 3 age of the Veiki moraine in N Sweden–Dating the landform record of an intermediate-sized ice sheet in Scandinavia |
title_full |
MIS 3 age of the Veiki moraine in N Sweden–Dating the landform record of an intermediate-sized ice sheet in Scandinavia |
title_fullStr |
MIS 3 age of the Veiki moraine in N Sweden–Dating the landform record of an intermediate-sized ice sheet in Scandinavia |
title_full_unstemmed |
MIS 3 age of the Veiki moraine in N Sweden–Dating the landform record of an intermediate-sized ice sheet in Scandinavia |
title_sort |
mis 3 age of the veiki moraine in n sweden–dating the landform record of an intermediate-sized ice sheet in scandinavia |
publisher |
Institute of Arctic and Alpine Research |
publishDate |
2022 |
url |
https://lup.lub.lu.se/record/a9816a76-ff10-434c-9a8e-d82dab9f31a4 https://doi.org/10.1080/15230430.2022.2091308 |
long_lat |
ENVELOPE(20.517,20.517,67.333,67.333) |
geographic |
Greenland Veiki |
geographic_facet |
Greenland Veiki |
genre |
Antarctic and Alpine Research Arctic Fennoscandian Greenland Ice Sheet Northern Sweden |
genre_facet |
Antarctic and Alpine Research Arctic Fennoscandian Greenland Ice Sheet Northern Sweden |
op_source |
Arctic, Antarctic, and Alpine Research; 54(1), pp 239-261 (2022) ISSN: 1523-0430 |
op_relation |
https://lup.lub.lu.se/record/a9816a76-ff10-434c-9a8e-d82dab9f31a4 http://dx.doi.org/10.1080/15230430.2022.2091308 scopus:85134158644 |
op_doi |
https://doi.org/10.1080/15230430.2022.2091308 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
54 |
container_issue |
1 |
container_start_page |
239 |
op_container_end_page |
261 |
_version_ |
1766286898315132928 |