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

IF 1.5 2区 历史学 0 ARCHAEOLOGY Journal of Archaeological Science-Reports Pub Date : 2024-09-18 DOI:10.1016/j.jasrep.2024.104753
D. Davies , C.M. Mills , D. McCarroll , N.J. Loader
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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 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.

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利用稳定同位素年代学对苏格兰边境安克鲁姆的中世纪桥梁遗迹进行精确定位
2018 年发现的安克鲁姆老桥(苏格兰泰维奥特河)是苏格兰的一项重大考古发现。经放射性碳年代测定,该桥的建造年代约为公元 1340-1360 年(95.4%);这是该地区政治和社会不稳定的时期。公元 1340-1360 年左右(95.4%);这是该地区政治和社会不稳定的时期。氧同位素年代测定法用于完善这一日期范围,并提供桥梁木材的精确砍伐日期。出乎意料的是,砍伐日期被确定为公元 1428/29 年冬季。这个日期是使用英国南部的参考年代学得出的,并根据从苏格兰本地橡木中提取的新的本地同位素年代学进行了独立验证。这一新日期属于苏格兰历史上较为稳定的时期,可能更适合安克鲁姆老桥等大型建筑项目。这些结果凸显了放射性碳最终用户在解释结果时考虑年代不确定性性质的重要性,尤其是当概率分布是多模式的时候。
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来源期刊
CiteScore
3.10
自引率
12.50%
发文量
405
期刊介绍: Journal of Archaeological Science: Reports is aimed at archaeologists and scientists engaged with the application of scientific techniques and methodologies to all areas of archaeology. The journal focuses on the results of the application of scientific methods to archaeological problems and debates. It will provide a forum for reviews and scientific debate of issues in scientific archaeology and their impact in the wider subject. Journal of Archaeological Science: Reports will publish papers of excellent archaeological science, with regional or wider interest. This will include case studies, reviews and short papers where an established scientific technique sheds light on archaeological questions and debates.
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