Constraining the time span between the Early Holocene Hässeldalen and Askja-S Tephras through varve counting in the Lake Czechowskie sediment record, Poland
We report the first findings of coexisting early Holocene Hässeldalen and Askja-S cryptotephras in a varved sediment record in Lake Czechowskie (Poland). A time span of 152 +11/−8 varve years between the two tephras has been revealed by differential dating through varve counting. This is in agreemen...
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2016
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Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_1480979 |
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_1480979 2023-05-15T16:10:38+02:00 Constraining the time span between the Early Holocene Hässeldalen and Askja-S Tephras through varve counting in the Lake Czechowskie sediment record, Poland Ott, F. Wulf, S. Serb, J. Słowiński, M. Obremska, M. Tjallingii, R. Błaszkiewicz, M. Brauer, A. 2016 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1480979 unknown info:eu-repo/semantics/altIdentifier/doi/10.1002/jqs.2844 info:eu-repo/semantics/altIdentifier/urn/http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.1002/jqs.2844 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1480979 Journal of Quaternary Science info:eu-repo/semantics/article 2016 ftgfzpotsdam https://doi.org/10.1002/jqs.2844 2022-09-14T05:53:29Z We report the first findings of coexisting early Holocene Hässeldalen and Askja-S cryptotephras in a varved sediment record in Lake Czechowskie (Poland). A time span of 152 +11/−8 varve years between the two tephras has been revealed by differential dating through varve counting. This is in agreement within the uncertainties with calculations from radiocarbon-based age models from the non-varved Hässeldala port record in southern Sweden, but shorter than assumed from the non-varved lake record on the Faroe Islands. We discuss possible reasons for the observed differences in duration between the two tephras and provide a revised absolute age for the Askja-S tephra of 11 228 ± 226 cal a BP based on anchoring our floating varve chronology to the absolute timescale by using the Hässeldalen Tephra as dated in the Hässeldala port sediments (11 380 ± 216 cal a BP). This age agrees with radiocarbon age models with larger uncertainty ranges, but is slightly older than radiocarbon-based age models with narrow uncertainty bands and is even 200–300 years older than the age reported from the Faroe Islands record. In addition to these chronological issues we discuss the possible response of the Czechowskie sediment record to the Preboreal climate oscillation. Article in Journal/Newspaper Faroe Islands GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Faroe Islands Askja ENVELOPE(-16.802,-16.802,65.042,65.042) Journal of Quaternary Science 31 2 103 113 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
We report the first findings of coexisting early Holocene Hässeldalen and Askja-S cryptotephras in a varved sediment record in Lake Czechowskie (Poland). A time span of 152 +11/−8 varve years between the two tephras has been revealed by differential dating through varve counting. This is in agreement within the uncertainties with calculations from radiocarbon-based age models from the non-varved Hässeldala port record in southern Sweden, but shorter than assumed from the non-varved lake record on the Faroe Islands. We discuss possible reasons for the observed differences in duration between the two tephras and provide a revised absolute age for the Askja-S tephra of 11 228 ± 226 cal a BP based on anchoring our floating varve chronology to the absolute timescale by using the Hässeldalen Tephra as dated in the Hässeldala port sediments (11 380 ± 216 cal a BP). This age agrees with radiocarbon age models with larger uncertainty ranges, but is slightly older than radiocarbon-based age models with narrow uncertainty bands and is even 200–300 years older than the age reported from the Faroe Islands record. In addition to these chronological issues we discuss the possible response of the Czechowskie sediment record to the Preboreal climate oscillation. |
format |
Article in Journal/Newspaper |
author |
Ott, F. Wulf, S. Serb, J. Słowiński, M. Obremska, M. Tjallingii, R. Błaszkiewicz, M. Brauer, A. |
spellingShingle |
Ott, F. Wulf, S. Serb, J. Słowiński, M. Obremska, M. Tjallingii, R. Błaszkiewicz, M. Brauer, A. Constraining the time span between the Early Holocene Hässeldalen and Askja-S Tephras through varve counting in the Lake Czechowskie sediment record, Poland |
author_facet |
Ott, F. Wulf, S. Serb, J. Słowiński, M. Obremska, M. Tjallingii, R. Błaszkiewicz, M. Brauer, A. |
author_sort |
Ott, F. |
title |
Constraining the time span between the Early Holocene Hässeldalen and Askja-S Tephras through varve counting in the Lake Czechowskie sediment record, Poland |
title_short |
Constraining the time span between the Early Holocene Hässeldalen and Askja-S Tephras through varve counting in the Lake Czechowskie sediment record, Poland |
title_full |
Constraining the time span between the Early Holocene Hässeldalen and Askja-S Tephras through varve counting in the Lake Czechowskie sediment record, Poland |
title_fullStr |
Constraining the time span between the Early Holocene Hässeldalen and Askja-S Tephras through varve counting in the Lake Czechowskie sediment record, Poland |
title_full_unstemmed |
Constraining the time span between the Early Holocene Hässeldalen and Askja-S Tephras through varve counting in the Lake Czechowskie sediment record, Poland |
title_sort |
constraining the time span between the early holocene hässeldalen and askja-s tephras through varve counting in the lake czechowskie sediment record, poland |
publishDate |
2016 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_1480979 |
long_lat |
ENVELOPE(-16.802,-16.802,65.042,65.042) |
geographic |
Faroe Islands Askja |
geographic_facet |
Faroe Islands Askja |
genre |
Faroe Islands |
genre_facet |
Faroe Islands |
op_source |
Journal of Quaternary Science |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/jqs.2844 info:eu-repo/semantics/altIdentifier/urn/http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.1002/jqs.2844 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1480979 |
op_doi |
https://doi.org/10.1002/jqs.2844 |
container_title |
Journal of Quaternary Science |
container_volume |
31 |
container_issue |
2 |
container_start_page |
103 |
op_container_end_page |
113 |
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1765995798325100544 |