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Rudjer Bošković Institute radiocarbon measurements IX

The following radiocarbon date list contains dates of samples from Plitvice Lakes measured since our previous list dealing with tufa from this region (Srdoc et al, 1982). Tufa measurements from the Knin area in S Croatia and some localities in Bosnia are also listed. Age calculations are based on the Libby half-life (5570 ± 30) yr and reported in years before 1950. Reported ages are based on the initial activity of 85% except for lake sediments where calculations of initial activity have been performed. The modern standard is 0.95 of the NBS oxalic acid activity. Sample pretreatment and counting technique are essentially the same as described in R, 1971, v 13, p 135-140, supplemented by new techniques for groundwater processing (R, 1979, v 21, p 131-137). Statistical processing of data has been computerized (Obelic & Planinic, 1977 ; Obelic, 1980). The errors quoted correspond to 1 r variation of sample net counting rate and do not include the uncertainty in 14C half-life.

Radiocarbon dating; Archaeology; Geology

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