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Dating ivory by determination of 14C, 90Sr and 228/232Th
Authors:Schmied Stefanie A K  Brunnermeier Matthias J  Schupfner Robert  Wolfbeis Otto S
Institution:Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93040 Regensburg, Germany.
Abstract:A method is described to determine the time of death of elephants. This is accomplished by analysis of the radionuclides 14C, 90Sr and 228/232Th in known samples of ivory, and in samples of unknown age. The reliability of this method is considerably increased by multi nuclide analysis.
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