Jacobsson, P. , Hamilton, W. D. , Cook, G. , Crone, A., Dunbar, E. , Kinch, H. , Naysmith, P. , Tripney, B. and Xu, S. (2018) Refining the Hallstatt plateau: Short-term 14C variability and small scale offsets in 50 consecutive tree-rings from south west Scotland dendro-dated to 410-460 BC. Radiocarbon, 60(1), pp. 219-237. (doi: 10.1017/RDC.2017.90)
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Abstract
Radiocarbon (14C) wiggle-match dating is a technique with a substantial potential to improve the precision of dating timbers in situations where dendrochronology is not tenable. However, one of the key reasons why obtaining a dendrochronological determination might be difficult is the short-lived nature of timbers on a range of archaeological sites, something that also affects the efficiency of the wiggle-match dating technique. Combined with the potential for high expense that the technique presents, it is paramount that wiggle-match dating research design has a good empirical basis. To this end we dated 50 consecutive, individual rings from a timber that grew during the Hallstatt radiocarbon calibration plateau (ca. 750–400 cal BC) in southwest Scotland. The results indicate that (1) the precision and accuracy of wiggle-match dates carried out on short-lived sequences during the Hallstatt plateau may suffer due to insufficient resolution of the calibration data, (2) sampling time-frames roughly equivalent to the underpinning calibration data are recommended (for the period in question this means decadal blocks), and (3) short-lived sequences are at risk of losing accuracy if the actual past trend of radiocarbon diverges from the mean of the radiocarbon calibration curve.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Tripney, Dr Brian and Cook, Professor Gordon and Naysmith, Mr Phillip and Dunbar, Dr Elaine and Xu, Dr Sheng and Hamilton, Professor Derek and Jacobsson, Dr Piotr and Kinch, Ms Helen |
Authors: | Jacobsson, P., Hamilton, W. D., Cook, G., Crone, A., Dunbar, E., Kinch, H., Naysmith, P., Tripney, B., and Xu, S. |
College/School: | College of Science and Engineering > Scottish Universities Environmental Research Centre |
Journal Name: | Radiocarbon |
Publisher: | Cambridge University Press |
ISSN: | 0033-8222 |
ISSN (Online): | 1945-5755 |
Published Online: | 19 September 2017 |
Copyright Holders: | Copyright © 2017 The Authors |
First Published: | First published in Radiocarbon 60(1): 219-237 |
Publisher Policy: | Reproduced under a Creative Commons License |
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