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...
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Online Access: | https://hdl.handle.net/10037/26232 https://doi.org/10.1080/15230430.2022.2091308 |
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ftunivtroemsoe:oai:munin.uit.no:10037/26232 2023-05-15T14:14:20+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 2022-07-14 https://hdl.handle.net/10037/26232 https://doi.org/10.1080/15230430.2022.2091308 eng eng Taylor & Francis Arctic, Antarctic and Alpine research Alexanderson H, Hättestrand M, Lindqvist, Sigfúsdóttir. MIS 3 age of the Veiki moraine in N Sweden – Dating the landform record of an intermediate-sized ice sheet in Scandinavia. Arctic, Antarctic and Alpine research. 2022;54(1):239-261 FRIDAID 2039226 doi:10.1080/15230430.2022.2091308 1523-0430 1938-4246 https://hdl.handle.net/10037/26232 openAccess Copyright 2022 The Author(s) Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1080/15230430.2022.2091308 2022-08-17T23:00:00Z 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 University of Tromsø: Munin Open Research Archive Greenland Veiki ENVELOPE(20.517,20.517,67.333,67.333) Arctic, Antarctic, and Alpine Research 54 1 239 261 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
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 |
spellingShingle |
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 |
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 |
Taylor & Francis |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/26232 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_relation |
Arctic, Antarctic and Alpine research Alexanderson H, Hättestrand M, Lindqvist, Sigfúsdóttir. MIS 3 age of the Veiki moraine in N Sweden – Dating the landform record of an intermediate-sized ice sheet in Scandinavia. Arctic, Antarctic and Alpine research. 2022;54(1):239-261 FRIDAID 2039226 doi:10.1080/15230430.2022.2091308 1523-0430 1938-4246 https://hdl.handle.net/10037/26232 |
op_rights |
openAccess Copyright 2022 The Author(s) |
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_ |
1766286857181593600 |