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Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK

Gwydion Jones, Siwan Davies Orcid Logo, Richard A. Staff, Neil Loader Orcid Logo, Sarah J. Davies, Michael J. C. Walker

Journal of Quaternary Science, Volume: 35, Issue: 1-2, Pages: 163 - 174

Swansea University Authors: Gwydion Jones, Siwan Davies Orcid Logo, Neil Loader Orcid Logo

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DOI (Published version): 10.1002/jqs.3141

Abstract

A tephra record is presented for a sediment core from Llyn Llech Owain, south Wales, spanning the early- to mid-Holocene. Seven cryptotephra deposits are discovered with three thought to correlate with known eruptions and the remaining four considered to represent previously undocumented events. One...

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Published in: Journal of Quaternary Science
ISSN: 0267-8179 1099-1417
Published: Wiley 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa51972
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spelling 2023-05-31T11:18:48.9777858 v2 51972 2019-09-20 Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK 60e37970b281337e44731ed4c197e930 Gwydion Jones Gwydion Jones true false b628382c97124173dd283bf7b83f1eec 0000-0003-0999-7233 Siwan Davies Siwan Davies true false 8267a62100791965d08df6a7842676e6 0000-0002-6841-1813 Neil Loader Neil Loader true false 2019-09-20 BGPS A tephra record is presented for a sediment core from Llyn Llech Owain, south Wales, spanning the early- to mid-Holocene. Seven cryptotephra deposits are discovered with three thought to correlate with known eruptions and the remaining four considered to represent previously undocumented events. One deposit is suggested to correlate with the ~6.9 cal ka bp Lairg A tephra from Iceland, whereas more distant sources are proposed as the origin for two of the tephra deposits. A peak of colourless shards in early-Holocene sediments is thought to tentatively correlate with the ~9.6 cal ka bp Fondi di Baia tephra (Campi Flegrei) and a second cryptotephra is tentatively correlated with the ~3.6 cal ka bp Aniakchak (CFE) II tephra (Alaska). The Fondi di Baia tephra has never been recorded beyond proximal sites and its discovery in south Wales significantly extends the geographical distribution of ash from this eruption. The remaining four cryptotephra deposits are yet to be correlated with known eruptions, demonstrating that our current understanding of widespread tephra deposits is incomplete. This new tephra record highlights the potential for sites at more southerly and westerly locations in northwest Europe to act as repositories for ash from several volcanic regions. Journal Article Journal of Quaternary Science 35 1-2 163 174 Wiley 0267-8179 1099-1417 1 1 2020 2020-01-01 10.1002/jqs.3141 http://dx.doi.org/10.1002/jqs.3141 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University 2023-05-31T11:18:48.9777858 2019-09-20T16:40:57.3211115 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Gwydion Jones 1 Siwan Davies 0000-0003-0999-7233 2 Richard A. Staff 3 Neil Loader 0000-0002-6841-1813 4 Sarah J. Davies 5 Michael J. C. Walker 6 51972__15503__4b6244e4f3c7414e8764d7ffbffb6373.pdf 51972.pdf 2019-10-07T16:34:26.5330000 Output 1476194 application/pdf Accepted Manuscript true 2020-09-18T00:00:00.0000000 true eng
title Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK
spellingShingle Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK
Gwydion Jones
Siwan Davies
Neil Loader
title_short Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK
title_full Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK
title_fullStr Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK
title_full_unstemmed Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK
title_sort Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK
author_id_str_mv 60e37970b281337e44731ed4c197e930
b628382c97124173dd283bf7b83f1eec
8267a62100791965d08df6a7842676e6
author_id_fullname_str_mv 60e37970b281337e44731ed4c197e930_***_Gwydion Jones
b628382c97124173dd283bf7b83f1eec_***_Siwan Davies
8267a62100791965d08df6a7842676e6_***_Neil Loader
author Gwydion Jones
Siwan Davies
Neil Loader
author2 Gwydion Jones
Siwan Davies
Richard A. Staff
Neil Loader
Sarah J. Davies
Michael J. C. Walker
format Journal article
container_title Journal of Quaternary Science
container_volume 35
container_issue 1-2
container_start_page 163
publishDate 2020
institution Swansea University
issn 0267-8179
1099-1417
doi_str_mv 10.1002/jqs.3141
publisher Wiley
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
url http://dx.doi.org/10.1002/jqs.3141
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description A tephra record is presented for a sediment core from Llyn Llech Owain, south Wales, spanning the early- to mid-Holocene. Seven cryptotephra deposits are discovered with three thought to correlate with known eruptions and the remaining four considered to represent previously undocumented events. One deposit is suggested to correlate with the ~6.9 cal ka bp Lairg A tephra from Iceland, whereas more distant sources are proposed as the origin for two of the tephra deposits. A peak of colourless shards in early-Holocene sediments is thought to tentatively correlate with the ~9.6 cal ka bp Fondi di Baia tephra (Campi Flegrei) and a second cryptotephra is tentatively correlated with the ~3.6 cal ka bp Aniakchak (CFE) II tephra (Alaska). The Fondi di Baia tephra has never been recorded beyond proximal sites and its discovery in south Wales significantly extends the geographical distribution of ash from this eruption. The remaining four cryptotephra deposits are yet to be correlated with known eruptions, demonstrating that our current understanding of widespread tephra deposits is incomplete. This new tephra record highlights the potential for sites at more southerly and westerly locations in northwest Europe to act as repositories for ash from several volcanic regions.
published_date 2020-01-01T05:05:50Z
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