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U. S. Geological Survey Radiocarbon Dates X∗

Published online by Cambridge University Press:  18 July 2016

Beverly Marsters
Affiliation:
U. S. Geological Survey, Washington, D. C.
Elliott Spiker
Affiliation:
U. S. Geological Survey, Washington, D. C.
Meyer Rubin
Affiliation:
U. S. Geological Survey, Washington, D. C.
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This list contains the results of measurements made during 1967 and 1968. Samples are counted in the form of acetylene gas, as previously, and ages computed on the basis of the Libby half-life, 5568 ± 30 yr. The error listed, which is always larger than the one-sigma statistical counting error commonly used, takes into account known uncertainty laboratory factors, but does not include external (field or atmospheric) variations.

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Type
Research Article
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Copyright © The American Journal of Science