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The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology

Darren Davies, C. M. Mills Orcid Logo, Danny McCarroll, Neil Loader Orcid Logo

Journal of Archaeological Science: Reports, Volume: 59

Swansea University Authors: Darren Davies, Danny McCarroll, Neil Loader Orcid Logo

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DOI (Published version): 10.1016/j.jasrep.2024.104753

Abstract

The discovery of Ancrum Old Bridge (River Teviot, Scotland) in 2018 was a significant archaeological finding for Scotland. Wiggle match radiocarbon dating placed construction of the bridge to around 1340–1360 Cal. AD (95.4 %); a period of political and social instability in the region. Oxygen isotop...

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Published in: Journal of Archaeological Science: Reports
ISSN: 2352-409X 2352-4103
Published: Elsevier 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa67708
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last_indexed 2024-11-25T14:20:41Z
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spelling 2024-09-18T10:08:27.7222637 v2 67708 2024-09-18 The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology 9fa284670cd135b40307d8550bfbb306 Darren Davies Darren Davies true false 6d181d926aaac8932c2bfa8d0e7f6960 Danny McCarroll Danny McCarroll true false 8267a62100791965d08df6a7842676e6 0000-0002-6841-1813 Neil Loader Neil Loader true false 2024-09-18 BGPS The discovery of Ancrum Old Bridge (River Teviot, Scotland) in 2018 was a significant archaeological finding for Scotland. Wiggle match radiocarbon dating placed construction of the bridge to around 1340–1360 Cal. AD (95.4 %); a period of political and social instability in the region. Oxygen isotope dendrochronology was applied to refine this date range and to provide a precise felling date for the bridge timbers. Somewhat unexpectedly, a felling date of winter AD 1428/29 was identified. This date was obtained using a reference chronology for the southern United Kingdom and independently verified against a new local isotope chronology developed from native Scottish oak. This new date falls within a more stable period in Scotland’s history which may have been more suited to major construction projects such as Ancrum Old Bridge. These results highlight the importance for radiocarbon end users to consider the nature of dating uncertainty when interpreting results, especially when the probability distribution is multi-modal. Journal Article Journal of Archaeological Science: Reports 59 Elsevier 2352-409X 2352-4103 Medieval bridge, stable oxygen isotope, dendrochronology, oak, radiocarbon 1 11 2024 2024-11-01 10.1016/j.jasrep.2024.104753 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University SU Library paid the OA fee (TA Institutional Deal) This work was supported by a UKRI Frontiers grant EP/X025098/1, with additional support from UKRI grants EP/X525637/1 and AH/X00354X/1, Future Woodlands Scotland, Marsden Fund 22-UOA-184 and Social Sciences and Humanities Research Council (Canada) 895-2019-1015. The Sout East Scotland Oak Dendrochronology (SESOD) project was supported principally by Historic Environment Scotland (HES) and Forestry and Land Scotland. The radiocarbon dating work was supported by HES, the Community Archaeology Radiocarbon Dating fund and the Society of Antiquaries of Scotland. We thank the QUERCUS project team for laboratory support and Christopher Bronk Ramsey for helpful discussions on wiggle-match radiocarbon dating. Our sincere thanks to Ancrum & District Heritage Society (ADHS), Wessex Archaeology Coastal & Marine and Ancrum Estates for making this study possible. We thank our reviewers for their constructive comments and suggestions. 2024-09-18T10:08:27.7222637 2024-09-18T09:45:10.6593382 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Darren Davies 1 C. M. Mills https://orcid.org/0000-0001-9575-1955 2 Danny McCarroll 3 Neil Loader 0000-0002-6841-1813 4 67708__31359__3bf9e50e2a4a4bb48294e8777c713936.pdf 67708.VOR.pdf 2024-09-18T10:04:59.3138082 Output 3043727 application/pdf Version of Record true © 2024 The Author(s). This is an open access article distributed under the terms of the Creative Commons CC-BY license. true eng http://creativecommons.org/licenses/by/4.0/
title The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology
spellingShingle The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology
Darren Davies
Danny McCarroll
Neil Loader
title_short The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology
title_full The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology
title_fullStr The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology
title_full_unstemmed The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology
title_sort The precise and accurate dating of medieval bridge remains at Ancrum, Scottish Borders, using stable isotope dendrochronology
author_id_str_mv 9fa284670cd135b40307d8550bfbb306
6d181d926aaac8932c2bfa8d0e7f6960
8267a62100791965d08df6a7842676e6
author_id_fullname_str_mv 9fa284670cd135b40307d8550bfbb306_***_Darren Davies
6d181d926aaac8932c2bfa8d0e7f6960_***_Danny McCarroll
8267a62100791965d08df6a7842676e6_***_Neil Loader
author Darren Davies
Danny McCarroll
Neil Loader
author2 Darren Davies
C. M. Mills
Danny McCarroll
Neil Loader
format Journal article
container_title Journal of Archaeological Science: Reports
container_volume 59
publishDate 2024
institution Swansea University
issn 2352-409X
2352-4103
doi_str_mv 10.1016/j.jasrep.2024.104753
publisher Elsevier
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
document_store_str 1
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description The discovery of Ancrum Old Bridge (River Teviot, Scotland) in 2018 was a significant archaeological finding for Scotland. Wiggle match radiocarbon dating placed construction of the bridge to around 1340–1360 Cal. AD (95.4 %); a period of political and social instability in the region. Oxygen isotope dendrochronology was applied to refine this date range and to provide a precise felling date for the bridge timbers. Somewhat unexpectedly, a felling date of winter AD 1428/29 was identified. This date was obtained using a reference chronology for the southern United Kingdom and independently verified against a new local isotope chronology developed from native Scottish oak. This new date falls within a more stable period in Scotland’s history which may have been more suited to major construction projects such as Ancrum Old Bridge. These results highlight the importance for radiocarbon end users to consider the nature of dating uncertainty when interpreting results, especially when the probability distribution is multi-modal.
published_date 2024-11-01T08:21:04Z
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