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Physical Research Laboratory Radiocarbon Date List VI

Published online by Cambridge University Press:  18 July 2016

D. P. Agrawal ,
Sheela Kusumgar  and
M. G. Yadava
D. P. Agrawal
Affiliation:
Physical Research Laboratory, Ahmedabad 380 009, India
Sheela Kusumgar
Affiliation:
Physical Research Laboratory, Ahmedabad 380 009, India
M. G. Yadava
Affiliation:
Physical Research Laboratory, Ahmedabad 380 009, India
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We present here dates for archaeological and geological samples. The dates are based on τ1/2 = 5568 years, using 1950 as the base year. The modern standard was 95% of activity of NBS oxalic acid.

Samples were pretreated, prepared by methane synthesis and counted in a proportional counter. The detailed procedure has been described earlier (Agrawal, Gupta & Kusumgar 1971). We reported minor changes in previous date lists. Quoted errors are based on counting statistics alone. For samples younger than 10,000 years, the error is 1 standard deviation, and for older samples, 2 standard deviations. The dates are not corrected for 13C fractionation. Samples have been arranged alphabetically according to the name of the site.

Type
Date Lists
Information
Radiocarbon , Volume 33 , Issue 3 , 1991 , pp. 329 - 344
Copyright
Copyright © The American Journal of Science 

References

Agrawal, D. P., Gupta, S. K. and Kusumgar, S. 1971 Tata Institute date list IX. Radiocarbon 13(2): 442–449.Google Scholar
Kusumgar, S., Agrawal, D. P. and Krishnamurthy, R. V. 1980 Studies on the loess deposits of the Kashmir Valley and 14C dating. In Stuiver, M and Kra, RS, eds, Proceedings of the 10th International 14C Conference. Radiocarbon 22(2B): 757–762.Google Scholar
Kusumgar, S., Agrawal, D. P., Juyal, N. and Sharma, P. 1986 Palaeosols within loess: Dating paleoclimatic events in Kashmir. In Stuiver, M and Kra, RS, eds, Proceedings of the 12th International 14C Conference. Radiocarbon 28(2A): 561–565.Google Scholar