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 Mjáuvøtn tephras. Here w...
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ftunivliverpool:oai:livrepository.liverpool.ac.uk:3024889 2024-09-09T19:39:48+00:00 Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic Wastegård, Stefan Gudmundsdóttir, Esther R Lind, Ewa M Timms, Rhys GO Björck, Svante Hannon, Gina E Olsen, Jesper Rundgren, Mats 2018-09 text https://livrepository.liverpool.ac.uk/3024889/ https://doi.org/10.1016/j.quascirev.2018.07.024 https://livrepository.liverpool.ac.uk/3024889/1/Wasteg%C3%A5rd%20et%20al_2018Faroes.pdf en eng Elsevier BV https://livrepository.liverpool.ac.uk/3024889/1/Wasteg%C3%A5rd%20et%20al_2018Faroes.pdf Wastegård, Stefan, Gudmundsdóttir, Esther R, Lind, Ewa M, Timms, Rhys GO, Björck, Svante, Hannon, Gina E, Olsen, Jesper and Rundgren, Mats (2018) Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic. Quaternary Science Reviews, 195. pp. 195-214. Article NonPeerReviewed 2018 ftunivliverpool https://doi.org/10.1016/j.quascirev.2018.07.024 2024-07-08T14:17:39Z 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 Mjáuvøtn 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 The importance of tephras originally described from the Faroe Islands is highlighted and previously unpublished results are included.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 Tjørnuvík 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. Article in Journal/Newspaper Faroe Islands Iceland North Atlantic The University of Liverpool Repository Faroe Islands Saksunarvatn ENVELOPE(-7.150,-7.150,62.233,62.233) Tjørnuvík ENVELOPE(-7.146,-7.146,62.289,62.289) Quaternary Science Reviews 195 195 214 |
institution |
Open Polar |
collection |
The University of Liverpool Repository |
op_collection_id |
ftunivliverpool |
language |
English |
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 Mjáuvøtn 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 Tjørnuvík 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. |
format |
Article in Journal/Newspaper |
author |
Wastegård, Stefan Gudmundsdóttir, Esther R Lind, Ewa M Timms, Rhys GO Björck, Svante Hannon, Gina E Olsen, Jesper Rundgren, Mats |
spellingShingle |
Wastegård, Stefan Gudmundsdóttir, Esther R Lind, Ewa M Timms, Rhys GO Björck, Svante Hannon, Gina E Olsen, Jesper Rundgren, Mats Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic |
author_facet |
Wastegård, Stefan Gudmundsdóttir, Esther R Lind, Ewa M Timms, Rhys GO Björck, Svante Hannon, Gina E Olsen, Jesper Rundgren, Mats |
author_sort |
Wastegård, 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 |
publisher |
Elsevier BV |
publishDate |
2018 |
url |
https://livrepository.liverpool.ac.uk/3024889/ https://doi.org/10.1016/j.quascirev.2018.07.024 https://livrepository.liverpool.ac.uk/3024889/1/Wasteg%C3%A5rd%20et%20al_2018Faroes.pdf |
long_lat |
ENVELOPE(-7.150,-7.150,62.233,62.233) ENVELOPE(-7.146,-7.146,62.289,62.289) |
geographic |
Faroe Islands Saksunarvatn Tjørnuvík |
geographic_facet |
Faroe Islands Saksunarvatn Tjørnuvík |
genre |
Faroe Islands Iceland North Atlantic |
genre_facet |
Faroe Islands Iceland North Atlantic |
op_relation |
https://livrepository.liverpool.ac.uk/3024889/1/Wasteg%C3%A5rd%20et%20al_2018Faroes.pdf Wastegård, Stefan, Gudmundsdóttir, Esther R, Lind, Ewa M, Timms, Rhys GO, Björck, Svante, Hannon, Gina E, Olsen, Jesper and Rundgren, Mats (2018) Towards a Holocene tephrochronology for the Faroe Islands, North Atlantic. Quaternary Science Reviews, 195. pp. 195-214. |
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 |
_version_ |
1809908882162581504 |