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US Geological Survey Radiocarbon Dates XIII

Published online by Cambridge University Press:  18 July 2016

Elliott Spiker
Affiliation:
US Geological Survey, National Center 971, Reston, Virginia
Lea Kelley
Affiliation:
US Geological Survey, National Center 971, Reston, Virginia
Meyer Rubin
Affiliation:
US Geological Survey, National Center 971, Reston, Virginia
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This list contains the results of some measurements made between 1965 and 1973. Samples are counted in the form of acetylene gas, as previously, and ages computed on the basis of the Libby half-life, 5568 ± 30 years. The dates have not been corrected for fractionation by a δ13C measurement. The error listed, always larger than the one-sigma statistical counting error commonly used, takes into account possible fractionation in the laboratory and in nature and the variability experienced with replicate samples. We wish to thank Charles Oman for his technical assistance.

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Copyright © The American Journal of Science