Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic
The Faroe Islands hold a key position in the North Atlantic region for tephra studies due to their relative proximity to Iceland. Several tephras have been described over the last 50 years in peat and lake sediment sequences, including the type sites for the Saksunarvatn and Mjauvotn tephras. Here w...
Published in: | Quaternary Science Reviews |
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Language: | English |
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2018
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Online Access: | https://pure.au.dk/portal/da/publications/towards-a-holocene-tephrochronology-for-the-faroe-islands-north-atlantic(c3207032-dd4a-42bb-b557-4c2404b71f96).html https://doi.org/10.1016/j.quascirev.2018.07.024 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/c3207032-dd4a-42bb-b557-4c2404b71f96 2023-11-12T04:16:55+01:00 Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic Wastegard, Stefan Gudmundsdottir, Esther R. Lind, Ewa M. Timms, Rhys G. O. Bjorck, Svante Hannon, Gina E. Olsen, Jesper Rundgren, Mats 2018-09-01 https://pure.au.dk/portal/da/publications/towards-a-holocene-tephrochronology-for-the-faroe-islands-north-atlantic(c3207032-dd4a-42bb-b557-4c2404b71f96).html https://doi.org/10.1016/j.quascirev.2018.07.024 eng eng https://pure.au.dk/portal/da/publications/towards-a-holocene-tephrochronology-for-the-faroe-islands-north-atlantic(c3207032-dd4a-42bb-b557-4c2404b71f96).html info:eu-repo/semantics/restrictedAccess Wastegard , S , Gudmundsdottir , E R , Lind , E M , Timms , R G O , Bjorck , S , Hannon , G E , Olsen , J & Rundgren , M 2018 , ' Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic ' , Quaternary Science Reviews , vol. 195 , pp. 195-214 . https://doi.org/10.1016/j.quascirev.2018.07.024 Quaternary Paleoclimatology North Atlantic Holocene Faroe Islands GLACIAL-INTERGLACIAL TRANSITION WEST-CENTRAL SWEDEN VOLCANIC ASH LAYERS TEPHRA HORIZONS HIGH-RESOLUTION LAKE-SEDIMENTS ICE-CORE MIDHOLOCENE TEPHRA VEDDE ASH INTIMATE INTEGRATION article 2018 ftuniaarhuspubl https://doi.org/10.1016/j.quascirev.2018.07.024 2023-10-25T22:59:35Z The Faroe Islands hold a key position in the North Atlantic region for tephra studies due to their relative proximity to Iceland. Several tephras have been described over the last 50 years in peat and lake sediment sequences, including the type sites for the Saksunarvatn and Mjauvotn tephras. Here we present a comprehensive overview of Holocene tephras found on the Faroe Island. In total 23 tephra layers are described including visible macrotephras such as the Saksunarvatn and Hekla 4 tephras and several cryptotephras. The importance of tephras originally described from the Faroe Islands is highlighted and previously unpublished results are included. In addition, full datasets for several sites are published here for the first time. The Saksunarvatn Ash, now considered to be the result of several eruptions rather than one major eruption, can be separated into two phases on the Faroe Islands; one early phase with two precursor eruptions with lower MgO concentrations (4.5-5.0 wt%) than the main eruption and a later phase with higher MgO concentrations (5.5-6.0 wt%), including the visible Saksunarvatn Ash. The Tjornuvik Tephra, previously considered to be a primary deposit, is now interpreted as a reworked tephra with material from at least two middle Holocene eruptions of Hekla. Several of the tephras identified on the Faroe Islands provide useful isochrons for climate events during the Holocene. (C) 2018 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Faroe Islands Hekla ice core Iceland North Atlantic Aarhus University: Research Faroe Islands Saksunarvatn ENVELOPE(-7.150,-7.150,62.233,62.233) Quaternary Science Reviews 195 195 214 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Quaternary Paleoclimatology North Atlantic Holocene Faroe Islands GLACIAL-INTERGLACIAL TRANSITION WEST-CENTRAL SWEDEN VOLCANIC ASH LAYERS TEPHRA HORIZONS HIGH-RESOLUTION LAKE-SEDIMENTS ICE-CORE MIDHOLOCENE TEPHRA VEDDE ASH INTIMATE INTEGRATION |
spellingShingle |
Quaternary Paleoclimatology North Atlantic Holocene Faroe Islands GLACIAL-INTERGLACIAL TRANSITION WEST-CENTRAL SWEDEN VOLCANIC ASH LAYERS TEPHRA HORIZONS HIGH-RESOLUTION LAKE-SEDIMENTS ICE-CORE MIDHOLOCENE TEPHRA VEDDE ASH INTIMATE INTEGRATION Wastegard, Stefan Gudmundsdottir, Esther R. Lind, Ewa M. Timms, Rhys G. O. Bjorck, Svante Hannon, Gina E. Olsen, Jesper Rundgren, Mats Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic |
topic_facet |
Quaternary Paleoclimatology North Atlantic Holocene Faroe Islands GLACIAL-INTERGLACIAL TRANSITION WEST-CENTRAL SWEDEN VOLCANIC ASH LAYERS TEPHRA HORIZONS HIGH-RESOLUTION LAKE-SEDIMENTS ICE-CORE MIDHOLOCENE TEPHRA VEDDE ASH INTIMATE INTEGRATION |
description |
The Faroe Islands hold a key position in the North Atlantic region for tephra studies due to their relative proximity to Iceland. Several tephras have been described over the last 50 years in peat and lake sediment sequences, including the type sites for the Saksunarvatn and Mjauvotn tephras. Here we present a comprehensive overview of Holocene tephras found on the Faroe Island. In total 23 tephra layers are described including visible macrotephras such as the Saksunarvatn and Hekla 4 tephras and several cryptotephras. The importance of tephras originally described from the Faroe Islands is highlighted and previously unpublished results are included. In addition, full datasets for several sites are published here for the first time. The Saksunarvatn Ash, now considered to be the result of several eruptions rather than one major eruption, can be separated into two phases on the Faroe Islands; one early phase with two precursor eruptions with lower MgO concentrations (4.5-5.0 wt%) than the main eruption and a later phase with higher MgO concentrations (5.5-6.0 wt%), including the visible Saksunarvatn Ash. The Tjornuvik Tephra, previously considered to be a primary deposit, is now interpreted as a reworked tephra with material from at least two middle Holocene eruptions of Hekla. Several of the tephras identified on the Faroe Islands provide useful isochrons for climate events during the Holocene. (C) 2018 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Wastegard, Stefan Gudmundsdottir, Esther R. Lind, Ewa M. Timms, Rhys G. O. Bjorck, Svante Hannon, Gina E. Olsen, Jesper Rundgren, Mats |
author_facet |
Wastegard, Stefan Gudmundsdottir, Esther R. Lind, Ewa M. Timms, Rhys G. O. Bjorck, Svante Hannon, Gina E. Olsen, Jesper Rundgren, Mats |
author_sort |
Wastegard, Stefan |
title |
Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic |
title_short |
Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic |
title_full |
Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic |
title_fullStr |
Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic |
title_full_unstemmed |
Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic |
title_sort |
towards a holocene tephrochronology for the faroe islands, north atlantic |
publishDate |
2018 |
url |
https://pure.au.dk/portal/da/publications/towards-a-holocene-tephrochronology-for-the-faroe-islands-north-atlantic(c3207032-dd4a-42bb-b557-4c2404b71f96).html https://doi.org/10.1016/j.quascirev.2018.07.024 |
long_lat |
ENVELOPE(-7.150,-7.150,62.233,62.233) |
geographic |
Faroe Islands Saksunarvatn |
geographic_facet |
Faroe Islands Saksunarvatn |
genre |
Faroe Islands Hekla ice core Iceland North Atlantic |
genre_facet |
Faroe Islands Hekla ice core Iceland North Atlantic |
op_source |
Wastegard , S , Gudmundsdottir , E R , Lind , E M , Timms , R G O , Bjorck , S , Hannon , G E , Olsen , J & Rundgren , M 2018 , ' Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic ' , Quaternary Science Reviews , vol. 195 , pp. 195-214 . https://doi.org/10.1016/j.quascirev.2018.07.024 |
op_relation |
https://pure.au.dk/portal/da/publications/towards-a-holocene-tephrochronology-for-the-faroe-islands-north-atlantic(c3207032-dd4a-42bb-b557-4c2404b71f96).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2018.07.024 |
container_title |
Quaternary Science Reviews |
container_volume |
195 |
container_start_page |
195 |
op_container_end_page |
214 |
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1782333955774611456 |