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A high-precision calibration of the AD radiocarbon time scale

Published online by Cambridge University Press:  18 July 2016

Minze Stuiver
Minze Stuiver*
Affiliation:
Department of Geological Sciences and Quaternary Research Center, University of Washington, Seattle, Washington 98195
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Abstract

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A high-precision calibration curve, derived from the radiocarbon age determinations of 195 decade samples spanning the AD 1 to 1950 interval, is presented.

Though derived for the Pacific Northwest and California, the curve can be used for a large part of the northern hemisphere. This is proven by the radiocarbon ages of contemporaneous sample pairs which are, in most instances, identical within the quoted precision. Two sets of single-year data reveal no evidence for an 11-year cycle with an amplitude beyond the 12-year measuring precision. This indicates that the calibration curve is also applicable for single-year 14C samples.

Analysis of the Seattle data sets and comparison with those published by the Belfast, La Jolla, and Heidelberg laboratories show that the total variability in a radiocarbon age determination is often larger than that predicted from the quoted errors. Upper limits for the error multiplier (ie, the factor with which the quoted error has to be multiplied to obtain the overall laboratory variability) are estimated at 1.5 for Seattle and Belfast, 1.1 to 1.4 for La Jolla, and 2.0 for Heidelberg.

The comparisons with Belfast, La Jolla, and Heidelberg also reveal offsets with the Seattle calibration curve of, respectively, 4, 27 to 55, and 58 years. These offsets are most likely due to laboratory bias. An improvement of the present calibration curve by combining data sets from other laboratories will only be possible when offsets and error multipliers are precisely known through interlaboratory calibration.

Type
Research Article
Information
Radiocarbon , Volume 24 , Issue 1 , 1982 , pp. 1 - 26
Copyright
Copyright © The American Journal of Science 

References

Bruns, Michael, Münnich, K O, and Becker, Bernd, 1980, Natural radiocarbon variations from ad 200 to 800, in : Radiocarbon, v 22, no. 2, p 273–277.CrossRefGoogle Scholar
Burchuladze, A A, Pagava, S V, Povinec, P, Togonidze, G I, and Usačev, S, 1980, Radiocarbon variations with the 11 year solar cycle during the last century: Nature, v 287, p 320–322.CrossRefGoogle Scholar
Douglas, A E, 1919, Climatic cycles and tree growth, Vol 1: Carnegie Inst Washington Pub 289.CrossRefGoogle Scholar
Lerman, J C, Mook, W G, and Vogel, J C, 1970, C14 in tree rings from different localities, in : New York, John Wiley and Sons, p 275–299.Google Scholar
Pearson, G W, 1980, High precision radiocarbon dating by liquid scintillation counting applied to radiocarbon timescale calibration, in : Radiocarbon, v 22, no. 2, p 337–345.CrossRefGoogle Scholar
Scott, E M, Baxter, M S, and Aitchison, T C, in press, 14C dating reproducibility: Evidence from a combined experimental and statistical programme, in Internatl symposium on C-14 and archaeology, 1st, Proc: Univ Groningen, in press.Google Scholar
Stuiver, Minze, 1978, Radiocarbon timescale tested against magnetic and other dating methods: Nature, v 273, p 271–274.CrossRefGoogle Scholar
Stuiver, Minze and Polach, H A, 1977, Discussion - reporting of 14C data: Radiocarbon, v 19, p 355–363.CrossRefGoogle Scholar
Stuiver, Minze and Quay, P D, 1980, Changes in atmospheric carbon-14 attributed to a variable sun: Science, v 207, p 11–19.Google Scholar
Stuiver, Minze 1981, Atmospheric 14C changes resulting from fossil fuel CO2 release and cosmic ray variability: Earth and Planetary Sci Letters, v 53, p 349–362.CrossRefGoogle Scholar
Stuiver, Minze, Robinson, S W, and Yang, I C, 1979, 14C dating to 60,000 years bp with proportional counters, in : Berkeley/La Jolla, Univ California Press, p 202–215.Google Scholar
Suess, H E, 1978, La Jolla measurements of radiocarbon in tree-ring dated wood: Radiocarbon, v 20, p 1–18.CrossRefGoogle Scholar