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Isotopic Fractionation of Norwegian Materials for Radiocarbon Dating

Published online by Cambridge University Press:  18 July 2016

Steinar Gulliksen
Steinar Gulliksen*
Affiliation:
Radiological Dating Laboratory, The Norwegian Institute of Technology, Trondheim, Norway
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Abstract

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To improve reporting of radiocarbon dates, Stuiver and Polach (1977) recommend that reported standard errors should include the error in the applied δ13C value, and suggest estimated mean values for δ13C to be applied when not measured. Based on δ13C data for ca 250 samples measured during 1975-1979, mean values for different materials dated by the Trondheim radiocarbon laboratory have been compiled. All material is from Norway and Svalbard (marine bone collagen). For peat, gyttja, and terrestrial bone material, δ13C should be measured to obtain optimal precision in the dates. For shell, wood, charcoal, and marine bones, the standard error in an estimated δ13C value will only increase uncertainty of a date from ±50 years to ca ±55 years.

Type
Dating Various Materials
Information
Radiocarbon , Volume 22 , Issue 3: Heidelberg , 1980 , pp. 980 - 986
Copyright
Copyright © The American Journal of Science

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