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University of Wisconsin Radiocarbon Dates II

Published online by Cambridge University Press:  18 July 2016

Margaret M. Bender
Affiliation:
Department of Meteorology, University of Wisconsin, Madison
Reid A. Bryson
Affiliation:
Department of Meteorology, University of Wisconsin, Madison
David A. Baerreis
Affiliation:
Department of Meteorology, University of Wisconsin, Madison
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This report summarizes the radiocarbon dates obtained at the University of Wisconsin since November 1964; the procedures followed have been described previously (Wisconsin I, 1965).

The counting equipment has been supplemented with a second detector of 500 ml volume for which the nominal background at 1 std atm, 298.2° K, is 2.1 cpm as determined with petroleum methane (Phillips Petroleum Co.). The corresponding standard count for contemporary methane derived from NBS oxalic acid 95% Aox, is nominally 2.8 cpm at 1 std atm, 298.2° K. The additional counting equipment was also obtained from the Sharp Division of Beckman Instrument Co.

Type
Research Article
Copyright
Copyright © The American Journal of Science 

References

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