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Riken Natural Radiocarbon Measurements V

Published online by Cambridge University Press:  18 July 2016

Fumio Yamasaki ,
Tatsuji Hamada  and
Chikako Hamada
Fumio Yamasaki
Affiliation:
Institute of Physical and Chemical Research (RIKEN), Komagome, Bunkyo-ku, Tokyo, Japan
Tatsuji Hamada
Affiliation:
Institute of Physical and Chemical Research (RIKEN), Komagome, Bunkyo-ku, Tokyo, Japan
Chikako Hamada
Affiliation:
Institute of Physical and Chemical Research (RIKEN), Komagome, Bunkyo-ku, Tokyo, Japan
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The C14 dates given below are a continuation of the work presented in our previous list (Radiocarbon, 1968, v. 10, p. 333-345), and have been obtained by counting CO2 at ca. 2 atm pressure in a 2.7 L stainless steel counter. Results obtained mainly during 1968 are described.

Dates have been calculated on the basis of the C14 half-life of 5568 yr and 95% of NBS oxalic acid as modern standard.

Type
Research Article
Information
Radiocarbon , Volume 11 , Issue 2 , 1969 , pp. 451 - 462
Copyright
Copyright © The American Journal of Science 

References

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