Radiocarbon Dating of Prehistoric Shell from New Zealand and Calculation of the Delta-R Value Using Fish Otoliths
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CitationHigham, T. F. G., & Hogg, A. G. (1995). Radiocarbon dating of prehistoric shell from New Zealand and calculation of the Delta-R value using fish otoliths. Radiocarbon, 37(2), 409-416.
AbstractWe calculated a new Delta-R for New Zealand waters using 14C 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 +/15 14C yr. To test the accuracy of this value for correcting conventional 14C 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 local AR value that we found statistically indistinguishable from the new Delta-R estimate for New Zealand.