@article{b50fc13fecbb4fc5a42030f277b355e7,
title = "Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from South Wales, UK",
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 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",
keywords = "cryptotephra, far-travelled, Holocene, Llyn Llech Owain, South Wales, south Wales",
author = "Gwydion Jones and Davies, {Siwan M.} and Staff, {Richard A.} and Loader, {Neil J.} and Sarah Davies and Mike Walker",
note = "Funding Information: This work was conducted as part of a PhD study, supported by the Coleg Cymraeg Cenedlaethol. Radiocarbon dates for this study were analysed by the NERC Radiocarbon Dating Facility (NRCF) funding (Radiocarbon Analysis Allocation Number 1882.0415). We would like to thank Alison Baird from Natural Resources Wales and Llyn Llech Owain Country Park. Thanks to Dr Chris Hayward for his assistance with the use of the electron microprobe at the Tephrochronology Analytical Unit, University of Edinburgh. Thanks also to Hannah Sams, Idris Birch, Tom Brain, Dai Brain, Gareth James (Swansea University) and the Swansea Tephra group for laboratory/field assistance and advice. RAS was supported by a Leverhulme Trust Early Career Fellowship (ECF-2015-396). Two anonymous reviewers are thanked for their constructive comments. Funding Information: This work was conducted as part of a PhD study, supported by the Coleg Cymraeg Cenedlaethol. Radiocarbon dates for this study were analysed by the NERC Radiocarbon Dating Facility (NRCF) funding (Radiocarbon Analysis Allocation Number 1882.0415). We would like to thank Alison Baird from Natural Resources Wales and Llyn Llech Owain Country Park. Thanks to Dr Chris Hayward for his assistance with the use of the electron microprobe at the Tephrochronology Analytical Unit, University of Edinburgh. Thanks also to Hannah Sams, Idris Birch, Tom Brain, Dai Brain, Gareth James (Swansea University) and the Swansea Tephra group for laboratory/field assistance and advice. RAS was supported by a Leverhulme Trust Early Career Fellowship (ECF‐2015‐396). Two anonymous reviewers are thanked for their constructive comments. Publisher Copyright: {\textcopyright} 2019 John Wiley & Sons, Ltd.",
year = "2020",
month = jan,
day = "29",
doi = "10.1002/jqs.3141",
language = "English",
volume = "35",
pages = "163--174",
journal = "Journal of Quaternary Science",
issn = "0267-8179",
publisher = "Wiley",
number = "1-2",
}