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University of Texas At Austin Radiocarbon Dates IX

Published online by Cambridge University Press:  18 July 2016

S. Valastro Jr. ,
E. Mott Davis  and
Alejandra G. Varela
S. Valastro Jr.
Affiliation:
Radiocarbon Laboratory, Balcones Research Center, The University of Texas at Austin
E. Mott Davis
Affiliation:
Radiocarbon Laboratory, Balcones Research Center, The University of Texas at Austin
Alejandra G. Varela
Affiliation:
Radiocarbon Laboratory, Balcones Research Center, The University of Texas at Austin
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This laboratory is now a branch of the Texas Memorial Museum of the University of Texas at Austin. This list reports C14 measurements made in projects completed between October 1969 and August 1971. A number of major projects are still in progress and are to be reported later. Age calculations are based on C14 half-life of 5568 yr and modern standard of 95% of NBS oxalic acid. Deviations reported are based on counting statistics of sample, background, and modern, and are ±1σ except that when sample count approaches either modern or background, 2σ limits are reported. Except where noted, C12/C13 measurements have not been made, and results are not corrected for C13 fractionation. The laboratory uses liquid scintillation counting of benzene, with Li2C2 and vanadium-activated catalyst in preparation; chemical yields average 88%. The counter is a Packard TriCarb Model 3002.

Type
Research Article
Information
Radiocarbon , Volume 14 , Issue 2 , 1972 , pp. 461 - 485
Copyright
Copyright © The American Journal of Science 

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