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Geological Survey of Canada Radiocarbon Dates IV

Published online by Cambridge University Press:  18 July 2016

W. Dyck ,
J. G. Fyles  and
W. Blake Jr.
W. Dyck
Affiliation:
Geological Survey of Canada, Ottawa, Canada
J. G. Fyles
Affiliation:
Geological Survey of Canada, Ottawa, Canada
W. Blake Jr.
Affiliation:
Geological Survey of Canada, Ottawa, Canada
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Most of the determinations reported here were obtained with the 2 L counter described in our first date list (GSC I). All age calculations are based on a C14 half-life of 5568 ± 30 yr and 0.95 of the activity of the NBS oxalic-acid standard, and the ages are quoted in years before 1950. The age errors include: counting errors of sample, background, and standard, the error in the half-life of C14, and an error term to account for the average variation of ±1.5% in the C14 concentration during the past 1100 yr. ‘Greater than’ ages are based on the 4 σ criterion (GSC II).

Type
Research Article
Information
Radiocarbon , Volume 7 , 1965 , pp. 24 - 46
Copyright
Copyright © The American Journal of Science

Footnotes

∗

The introductory part of this paper has been prepared by the first author, who operates the laboratory. The date list has been compiled by the second and third authors from descriptions of samples and interpretations of dates by the various collectors.

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