Radiocarbon Dating of Prehistoric Shell from New Zealand and Calculation of the δr Value Using Fish Otoliths

T. F. G. Higham, A. G. Hogg
1995 Radiocarbon: An International Journal of Cosmogenic Isotope Research  
We calculated a new ∆R for New Zealand waters using14C dates of historic shell previously presented by McFadgen and Manning (1990), and fish otoliths dated by Kalish (1993). We obtained a new estimate of −25 ± 1514C yr. To test the accuracy of this value for correcting conventional14C marine ages, we dated shell of a variety of different species excavated at the prehistoric site of Shag Mouth, North Otago. We compared the results with a pooled mean date for terrestrial samples and calculated a
more » ... ocal ∆R value that we found statistically indistinguishable from the new ∆R estimate for New Zealand.
doi:10.1017/s0033822200030885 fatcat:ki55sylmnfgjxpafxpnavbfto4