Evaluating tephrochronology in the permafrost peatlands of northern Sweden
Tephrochronology is an increasingly important tool for the dating of sediment and peat profiles for palaeoecological, palaeoclimatic and archaeological research. However, although much work has been done on tephra in temperate peatlands, there have been very few in-depth investigations of permafrost...
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Language: | English |
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2019
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ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/bf2e5b2a-e473-4a47-a14e-aa5bffa169dc 2024-06-23T07:44:52+00:00 Evaluating tephrochronology in the permafrost peatlands of northern Sweden Cooper, Claire L. Swindles, Graeme T. Watson, Elizabeth J. Savov, Ivan P. Gałka, Mariusz Gallego-Sala, Angela Borken, Werner 2019-03-01 https://pure.qub.ac.uk/en/publications/bf2e5b2a-e473-4a47-a14e-aa5bffa169dc https://doi.org/10.1016/j.quageo.2018.11.001 eng eng https://pure.qub.ac.uk/en/publications/bf2e5b2a-e473-4a47-a14e-aa5bffa169dc info:eu-repo/semantics/closedAccess Cooper , C L , Swindles , G T , Watson , E J , Savov , I P , Gałka , M , Gallego-Sala , A & Borken , W 2019 , ' Evaluating tephrochronology in the permafrost peatlands of northern Sweden ' , Quaternary Geochronology , vol. 50 , pp. 16-28 . https://doi.org/10.1016/j.quageo.2018.11.001 Glass preservation Peatlands Permafrost Tephra Tephrochronology /dk/atira/pure/subjectarea/asjc/1900/1907 name=Geology /dk/atira/pure/subjectarea/asjc/1900/1913 name=Stratigraphy /dk/atira/pure/subjectarea/asjc/1900/1901 name=Earth and Planetary Sciences (miscellaneous) /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2019 ftqueensubelpubl https://doi.org/10.1016/j.quageo.2018.11.001 2024-06-04T14:46:02Z Tephrochronology is an increasingly important tool for the dating of sediment and peat profiles for palaeoecological, palaeoclimatic and archaeological research. However, although much work has been done on tephra in temperate peatlands, there have been very few in-depth investigations of permafrost peatlands. Here we present the analysis of nine peatland cores from Abisko, northern Sweden, and show that the presence of tephra layers may be highly variable even over a scale of <10 km. Using electron probe microanalysis (EPMA) combined with age-depth profiles compiled from radiocarbon ( 14 C) and 210 Pb dating of peat records, we identify the Hekla 1104, Hekla 1158, Hekla-Selsund and the Hekla 4 tephra layers. We also infer the presence of the Askja 1875 tephra, in addition to an unassigned tephra dating from between 1971–1987 AD in two separate cores. Five of the nine analysed cores do not contain distinct tephra layers. Volcanic ash deposits in northern Scandinavia are subject to both regional-scale variations in climate and atmospheric circulation, and local-scale variations on the order of tens of kilometres in topography, vegetation, snow cover, and ground permeability. The extreme inconsistency of tephra preservation within a small study area (∼3000 km 2 ) brings into question the reliability of tephrochronology within permafrost peatlands, and highlights the necessity of alternative methods for dating peat profiles in this region. Article in Journal/Newspaper Abisko Hekla Northern Sweden permafrost Queen's University Belfast Research Portal Abisko ENVELOPE(18.829,18.829,68.349,68.349) Askja ENVELOPE(-16.802,-16.802,65.042,65.042) Selsund ENVELOPE(-19.942,-19.942,63.941,63.941) Quaternary Geochronology 50 16 28 |
institution |
Open Polar |
collection |
Queen's University Belfast Research Portal |
op_collection_id |
ftqueensubelpubl |
language |
English |
topic |
Glass preservation Peatlands Permafrost Tephra Tephrochronology /dk/atira/pure/subjectarea/asjc/1900/1907 name=Geology /dk/atira/pure/subjectarea/asjc/1900/1913 name=Stratigraphy /dk/atira/pure/subjectarea/asjc/1900/1901 name=Earth and Planetary Sciences (miscellaneous) /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
Glass preservation Peatlands Permafrost Tephra Tephrochronology /dk/atira/pure/subjectarea/asjc/1900/1907 name=Geology /dk/atira/pure/subjectarea/asjc/1900/1913 name=Stratigraphy /dk/atira/pure/subjectarea/asjc/1900/1901 name=Earth and Planetary Sciences (miscellaneous) /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Cooper, Claire L. Swindles, Graeme T. Watson, Elizabeth J. Savov, Ivan P. Gałka, Mariusz Gallego-Sala, Angela Borken, Werner Evaluating tephrochronology in the permafrost peatlands of northern Sweden |
topic_facet |
Glass preservation Peatlands Permafrost Tephra Tephrochronology /dk/atira/pure/subjectarea/asjc/1900/1907 name=Geology /dk/atira/pure/subjectarea/asjc/1900/1913 name=Stratigraphy /dk/atira/pure/subjectarea/asjc/1900/1901 name=Earth and Planetary Sciences (miscellaneous) /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
Tephrochronology is an increasingly important tool for the dating of sediment and peat profiles for palaeoecological, palaeoclimatic and archaeological research. However, although much work has been done on tephra in temperate peatlands, there have been very few in-depth investigations of permafrost peatlands. Here we present the analysis of nine peatland cores from Abisko, northern Sweden, and show that the presence of tephra layers may be highly variable even over a scale of <10 km. Using electron probe microanalysis (EPMA) combined with age-depth profiles compiled from radiocarbon ( 14 C) and 210 Pb dating of peat records, we identify the Hekla 1104, Hekla 1158, Hekla-Selsund and the Hekla 4 tephra layers. We also infer the presence of the Askja 1875 tephra, in addition to an unassigned tephra dating from between 1971–1987 AD in two separate cores. Five of the nine analysed cores do not contain distinct tephra layers. Volcanic ash deposits in northern Scandinavia are subject to both regional-scale variations in climate and atmospheric circulation, and local-scale variations on the order of tens of kilometres in topography, vegetation, snow cover, and ground permeability. The extreme inconsistency of tephra preservation within a small study area (∼3000 km 2 ) brings into question the reliability of tephrochronology within permafrost peatlands, and highlights the necessity of alternative methods for dating peat profiles in this region. |
format |
Article in Journal/Newspaper |
author |
Cooper, Claire L. Swindles, Graeme T. Watson, Elizabeth J. Savov, Ivan P. Gałka, Mariusz Gallego-Sala, Angela Borken, Werner |
author_facet |
Cooper, Claire L. Swindles, Graeme T. Watson, Elizabeth J. Savov, Ivan P. Gałka, Mariusz Gallego-Sala, Angela Borken, Werner |
author_sort |
Cooper, Claire L. |
title |
Evaluating tephrochronology in the permafrost peatlands of northern Sweden |
title_short |
Evaluating tephrochronology in the permafrost peatlands of northern Sweden |
title_full |
Evaluating tephrochronology in the permafrost peatlands of northern Sweden |
title_fullStr |
Evaluating tephrochronology in the permafrost peatlands of northern Sweden |
title_full_unstemmed |
Evaluating tephrochronology in the permafrost peatlands of northern Sweden |
title_sort |
evaluating tephrochronology in the permafrost peatlands of northern sweden |
publishDate |
2019 |
url |
https://pure.qub.ac.uk/en/publications/bf2e5b2a-e473-4a47-a14e-aa5bffa169dc https://doi.org/10.1016/j.quageo.2018.11.001 |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) ENVELOPE(-16.802,-16.802,65.042,65.042) ENVELOPE(-19.942,-19.942,63.941,63.941) |
geographic |
Abisko Askja Selsund |
geographic_facet |
Abisko Askja Selsund |
genre |
Abisko Hekla Northern Sweden permafrost |
genre_facet |
Abisko Hekla Northern Sweden permafrost |
op_source |
Cooper , C L , Swindles , G T , Watson , E J , Savov , I P , Gałka , M , Gallego-Sala , A & Borken , W 2019 , ' Evaluating tephrochronology in the permafrost peatlands of northern Sweden ' , Quaternary Geochronology , vol. 50 , pp. 16-28 . https://doi.org/10.1016/j.quageo.2018.11.001 |
op_relation |
https://pure.qub.ac.uk/en/publications/bf2e5b2a-e473-4a47-a14e-aa5bffa169dc |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.quageo.2018.11.001 |
container_title |
Quaternary Geochronology |
container_volume |
50 |
container_start_page |
16 |
op_container_end_page |
28 |
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1802648187077394432 |