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Gliwice Radiocarbon Dates V

Published online by Cambridge University Press:  18 July 2016

Anna Pazdur
Affiliation:
Institute of Physics, Silesian Technical University, PL-44-100 Gliwice, ul Krzywoustego 2, Poland
Mieczyslaw F Pazdur
Affiliation:
Institute of Physics, Silesian Technical University, PL-44-100 Gliwice, ul Krzywoustego 2, Poland
Andrzej Zastawny
Affiliation:
Institute of Physics, Silesian Technical University, PL-44-100 Gliwice, ul Krzywoustego 2, Poland
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Most of the dates reported in this list were obtained between November 1975 and December 1976. All samples were subjected to standard de Vries pretreatment. Age calculations are based on a contemporary value equal to 0.95 of the activity of NBS oxalic acid standard and on the Libby value for the half-life of radiocarbon. Results are reported as conventional radiocarbon dates in years before ad 1950. All measurements were made with our L1 counter (Mościcki & Zastawny, 1976). Counting rates of all samples were normalized to the standard value of CO2 pressure and corrected for the counting efficiency (Pazdur et al, 1978). Errors quoted (±1σ) include estimated overall standard deviations of count rates for the unknown sample, contemporary standard and background (Pazdur, & Walanus, in press). No corrections for 13C/12C ratio were made for measurements reported in this list. The value of δ13C for our NBS oxalic acid standard is equal to — 19.41% relative to the PDB standard. The descriptions of the samples are based on information provided by the submitters.

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