First physical evidence for forested environment in the Arctic during MIS 3
Old sedimentological and geochronological records can be preserved underneath the central parts of the continental ice sheets under non-erosive, cold-based subglacial conditions. Organic deposits that predate the last deglaciation are of particular value for the information held on glacial-time clim...
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ftvilniusuniv:oai:elaba:17014082 2023-05-15T14:52:36+02:00 First physical evidence for forested environment in the Arctic during MIS 3 Sarala, Pertti Väliranta, Minna Eskola, Tiina Vaikutienė, Giedrė 2016 application/pdf https://repository.vu.lt/VU:ELABAPDB17014082&prefLang=en_US eng eng info:eu-repo/semantics/altIdentifier/doi/10.1038/srep29054 https://epublications.vu.lt/object/elaba:17014082/17014082.pdf https://repository.vu.lt/VU:ELABAPDB17014082&prefLang=en_US info:eu-repo/semantics/openAccess Scientific reports, London : Nature Publishing Group, 2016, vol. 6, Art. No. 29054 ISSN 2045-2322 the Arctic MIS 3 evidence for forested info:eu-repo/semantics/article 2016 ftvilniusuniv https://doi.org/10.1038/srep29054 2021-12-16T00:10:39Z Old sedimentological and geochronological records can be preserved underneath the central parts of the continental ice sheets under non-erosive, cold-based subglacial conditions. Organic deposits that predate the last deglaciation are of particular value for the information held on glacial-time climate and environmental conditions. In this study, we present multiproxy data derived from a well-preserved MIS 3 interstadial (55–25 ka ago) organic layer from inside the Arctic Circle in the Finnish Lapland. Biological proxy evidence, namely coming from aquatic plant species, indicates July temperatures as high as 14.4 °C, i.e. higher than those of today for the study site. Macrofossil evidence demonstrates for the first time the presence of pines accompanied by tree birch during the MIS 3 interstadial in northern Fennoscandia. These results concur with contemporary insolation model outcomes but contradict with the previous proxy-based view of open tundra conditions during the MIS 3. The data suggest that there are highly dynamic interstadial continental ice-sheet dynamics following changes in orbital forcing. Warm climate enabled the establishment of forests on exposed landscape. Moreover, we suggest that in the light of these new data, previous MIS 3 pollen data could be re-interpreted. Article in Journal/Newspaper Arctic Fennoscandia Ice Sheet Tundra Lapland Vilnius University Virtual Library (VU VL) Arctic Scientific Reports 6 1 |
institution |
Open Polar |
collection |
Vilnius University Virtual Library (VU VL) |
op_collection_id |
ftvilniusuniv |
language |
English |
topic |
the Arctic MIS 3 evidence for forested |
spellingShingle |
the Arctic MIS 3 evidence for forested Sarala, Pertti Väliranta, Minna Eskola, Tiina Vaikutienė, Giedrė First physical evidence for forested environment in the Arctic during MIS 3 |
topic_facet |
the Arctic MIS 3 evidence for forested |
description |
Old sedimentological and geochronological records can be preserved underneath the central parts of the continental ice sheets under non-erosive, cold-based subglacial conditions. Organic deposits that predate the last deglaciation are of particular value for the information held on glacial-time climate and environmental conditions. In this study, we present multiproxy data derived from a well-preserved MIS 3 interstadial (55–25 ka ago) organic layer from inside the Arctic Circle in the Finnish Lapland. Biological proxy evidence, namely coming from aquatic plant species, indicates July temperatures as high as 14.4 °C, i.e. higher than those of today for the study site. Macrofossil evidence demonstrates for the first time the presence of pines accompanied by tree birch during the MIS 3 interstadial in northern Fennoscandia. These results concur with contemporary insolation model outcomes but contradict with the previous proxy-based view of open tundra conditions during the MIS 3. The data suggest that there are highly dynamic interstadial continental ice-sheet dynamics following changes in orbital forcing. Warm climate enabled the establishment of forests on exposed landscape. Moreover, we suggest that in the light of these new data, previous MIS 3 pollen data could be re-interpreted. |
format |
Article in Journal/Newspaper |
author |
Sarala, Pertti Väliranta, Minna Eskola, Tiina Vaikutienė, Giedrė |
author_facet |
Sarala, Pertti Väliranta, Minna Eskola, Tiina Vaikutienė, Giedrė |
author_sort |
Sarala, Pertti |
title |
First physical evidence for forested environment in the Arctic during MIS 3 |
title_short |
First physical evidence for forested environment in the Arctic during MIS 3 |
title_full |
First physical evidence for forested environment in the Arctic during MIS 3 |
title_fullStr |
First physical evidence for forested environment in the Arctic during MIS 3 |
title_full_unstemmed |
First physical evidence for forested environment in the Arctic during MIS 3 |
title_sort |
first physical evidence for forested environment in the arctic during mis 3 |
publishDate |
2016 |
url |
https://repository.vu.lt/VU:ELABAPDB17014082&prefLang=en_US |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Fennoscandia Ice Sheet Tundra Lapland |
genre_facet |
Arctic Fennoscandia Ice Sheet Tundra Lapland |
op_source |
Scientific reports, London : Nature Publishing Group, 2016, vol. 6, Art. No. 29054 ISSN 2045-2322 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/srep29054 https://epublications.vu.lt/object/elaba:17014082/17014082.pdf https://repository.vu.lt/VU:ELABAPDB17014082&prefLang=en_US |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/srep29054 |
container_title |
Scientific Reports |
container_volume |
6 |
container_issue |
1 |
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1766323840270467072 |