Gif Natural Radiocarbon Measurements VII
- 1 January 1972
- journal article
- research article
- Published by Cambridge University Press (CUP) in Radiocarbon
- Vol. 14 (2) , 280-320
- https://doi.org/10.1017/s0033822200059373
Abstract
C14 dates reported below were obtained mainly at the end of 1968 and during 1969 on archaeologic and geologic samples. Techniques of measurement used are unchanged. Since 1968, 4 complete routine sets have been running, each equipped with a 1 L CO2 proportional counter. One is made of stainless steel with a background of 2.70 cpm at pressure 1 atm and the others are of OFHC copper with a background of either 1.10 or 1.30 cpm for a corresponding pressure of, respectively, 1 or 2 atm. For age calculation, 95% activity of NBS oxalic acid is used as the modern standard and the value of 5570 ± 30 years is used for the half-life of C14. Dates are expressed in years b.p. (before a.d. 1950).Keywords
This publication has 1 reference indexed in Scilit:
- Le Néolithique dans le Saintponais (Hérault)Bulletin de la Société préhistorique française. Études et travaux, 1968