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- Alexanderson, HelenaLund University,Lunds universitet,Kvartärgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Quaternary Sciences,Department of Geology,Faculty of Science,UiT The Arctic University of Norway, Tromsø (author)
MIS 3 age of the Veiki moraine in N Sweden – Dating the landform record of an intermediate-sized ice sheet in Scandinavia
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- 2022-07-14
- Informa UK Limited,2022
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:su-207952
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-207952URI
- https://doi.org/10.1080/15230430.2022.2091308DOI
- https://lup.lub.lu.se/record/a9816a76-ff10-434c-9a8e-d82dab9f31a4URI
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- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- 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.
Subject headings and genre
- NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
- NATURVETENSKAP Geovetenskap och miljövetenskap Geologi hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Geology hsv//eng
- Ice-walled lake plain
- OSL
- luminescence dating
- Middle Weichselian
- Fennoscandian ice sheet
- Fennoscandian ice sheet
- Ice-walled lake plain
- luminescence dating
- Middle Weichselian
- OSL
Added entries (persons, corporate bodies, meetings, titles ...)
- Hättestrand, MartinaStockholm University,Stockholms universitet,Institutionen för naturgeografi(Swepub:su)hatte (author)
- Lindqvist, Mimmi A.UiT The Arctic University of Norway, Tromsø (author)
- Sigfúsdóttir, ThorbjörgLund University,Icelandic Meteorological office (author)
- KvartärgeologiGeologiska institutionen (creator_code:org_t)
Related titles
- In:Arctic, Antarctic and Alpine research: Informa UK Limited54:1, s. 239-2611523-04301938-4246
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