Author:
Higham T. F. G.,Hogg A. G.
Abstract
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 local ∆R value that we found statistically indistinguishable from the new ∆R estimate for New Zealand.
Publisher
Cambridge University Press (CUP)
Subject
General Earth and Planetary Sciences,Archeology
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