Cave stratigraphy in western Norway; multiple Weichselian glaciations and interstadial vertebrate fauna
Skjonghclleren is a marine‐cut cave with 15–20. m thick pre‐Holocene sediments. Corings and excavations reveal three beds of extremely fine‐grained, laminated sediments alternating with blocky sediments. The laminated beds are interpreted as glaciolacustrine sediments deposited subglacially at times...
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crwiley:10.1111/j.1502-3885.1987.tb00096.x 2024-09-15T17:52:37+00:00 Cave stratigraphy in western Norway; multiple Weichselian glaciations and interstadial vertebrate fauna LARSEN, EILIV GULLIKSEN, STEINAR LAURITZEN, STEIN‐ERIK LIE, ROLF LØVLIE, REIDAR MANGERUD, JAN 1987 http://dx.doi.org/10.1111/j.1502-3885.1987.tb00096.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1987.tb00096.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1987.tb00096.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 16, issue 3, page 267-292 ISSN 0300-9483 1502-3885 journal-article 1987 crwiley https://doi.org/10.1111/j.1502-3885.1987.tb00096.x 2024-09-05T05:03:07Z Skjonghclleren is a marine‐cut cave with 15–20. m thick pre‐Holocene sediments. Corings and excavations reveal three beds of extremely fine‐grained, laminated sediments alternating with blocky sediments. The laminated beds are interpreted as glaciolacustrine sediments deposited subglacially at times when ice sheets covered the area, suggesting at least three glaciations after the cave was formed. The blocky/diamictic sediments were formed by frost‐shattered blocks from the roof of the cave during ice‐free periods, and mixing with the fines through slow mass movements along the floor of the cave. In the diamictic sediment beneath the uppermost laminated bed, almost 7,000 bone and teeth fragments of birds, mammals and fish were found. Birds dominated, with little auk and brunnich's guillemot as the most frequently occurring species. Arctic fox was the dominating mammal. During climatic optimum of the interstadial, conditions seem to have been similar to present‐day coastal Finnmark, with North Atlantic warm water entering the Norwegian Sea. Two radiocarbon dates on bones and three Uranium series dates on speleothems from this bed all cluster around 30,000 B.P., i.e., the end of the Ålesund interstadial. Above the uppermost laminated bed, bone fragments of birds, fish and mammals, deposited between c . 12,000 and c . 10,000 B.P., were found. Little auk dominate. The occurrence of squirrel is worth noting since it is limited mainly to areas with coniferous forest today. The beds below the 30,000B.P. bed are poorly dated or undated, but it is tentatively concluded that the entire sediment sequence was deposited during the Weichselian stage. It seems that the cave was formed at a high relative sea‐level stand sometime during the Early Weichsclian. Two recorded palaeomagnetic excursions seem to correlate with the Laschamp/Olby and the Lake Mungo events, respectively. Article in Journal/Newspaper Arctic Fox Finnmark little auk North Atlantic Norwegian Sea Finnmark Wiley Online Library Boreas 16 3 267 292 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Skjonghclleren is a marine‐cut cave with 15–20. m thick pre‐Holocene sediments. Corings and excavations reveal three beds of extremely fine‐grained, laminated sediments alternating with blocky sediments. The laminated beds are interpreted as glaciolacustrine sediments deposited subglacially at times when ice sheets covered the area, suggesting at least three glaciations after the cave was formed. The blocky/diamictic sediments were formed by frost‐shattered blocks from the roof of the cave during ice‐free periods, and mixing with the fines through slow mass movements along the floor of the cave. In the diamictic sediment beneath the uppermost laminated bed, almost 7,000 bone and teeth fragments of birds, mammals and fish were found. Birds dominated, with little auk and brunnich's guillemot as the most frequently occurring species. Arctic fox was the dominating mammal. During climatic optimum of the interstadial, conditions seem to have been similar to present‐day coastal Finnmark, with North Atlantic warm water entering the Norwegian Sea. Two radiocarbon dates on bones and three Uranium series dates on speleothems from this bed all cluster around 30,000 B.P., i.e., the end of the Ålesund interstadial. Above the uppermost laminated bed, bone fragments of birds, fish and mammals, deposited between c . 12,000 and c . 10,000 B.P., were found. Little auk dominate. The occurrence of squirrel is worth noting since it is limited mainly to areas with coniferous forest today. The beds below the 30,000B.P. bed are poorly dated or undated, but it is tentatively concluded that the entire sediment sequence was deposited during the Weichselian stage. It seems that the cave was formed at a high relative sea‐level stand sometime during the Early Weichsclian. Two recorded palaeomagnetic excursions seem to correlate with the Laschamp/Olby and the Lake Mungo events, respectively. |
format |
Article in Journal/Newspaper |
author |
LARSEN, EILIV GULLIKSEN, STEINAR LAURITZEN, STEIN‐ERIK LIE, ROLF LØVLIE, REIDAR MANGERUD, JAN |
spellingShingle |
LARSEN, EILIV GULLIKSEN, STEINAR LAURITZEN, STEIN‐ERIK LIE, ROLF LØVLIE, REIDAR MANGERUD, JAN Cave stratigraphy in western Norway; multiple Weichselian glaciations and interstadial vertebrate fauna |
author_facet |
LARSEN, EILIV GULLIKSEN, STEINAR LAURITZEN, STEIN‐ERIK LIE, ROLF LØVLIE, REIDAR MANGERUD, JAN |
author_sort |
LARSEN, EILIV |
title |
Cave stratigraphy in western Norway; multiple Weichselian glaciations and interstadial vertebrate fauna |
title_short |
Cave stratigraphy in western Norway; multiple Weichselian glaciations and interstadial vertebrate fauna |
title_full |
Cave stratigraphy in western Norway; multiple Weichselian glaciations and interstadial vertebrate fauna |
title_fullStr |
Cave stratigraphy in western Norway; multiple Weichselian glaciations and interstadial vertebrate fauna |
title_full_unstemmed |
Cave stratigraphy in western Norway; multiple Weichselian glaciations and interstadial vertebrate fauna |
title_sort |
cave stratigraphy in western norway; multiple weichselian glaciations and interstadial vertebrate fauna |
publisher |
Wiley |
publishDate |
1987 |
url |
http://dx.doi.org/10.1111/j.1502-3885.1987.tb00096.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1987.tb00096.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1987.tb00096.x |
genre |
Arctic Fox Finnmark little auk North Atlantic Norwegian Sea Finnmark |
genre_facet |
Arctic Fox Finnmark little auk North Atlantic Norwegian Sea Finnmark |
op_source |
Boreas volume 16, issue 3, page 267-292 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1502-3885.1987.tb00096.x |
container_title |
Boreas |
container_volume |
16 |
container_issue |
3 |
container_start_page |
267 |
op_container_end_page |
292 |
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1810294663241793536 |