Dating ivory by determination of 14C, 90Sr and 228/232Th.
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.
Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93040 Regensburg, Germany.
Stefanie A K
SA
Schmied
Matthias J
MJ
Brunnermeier
Robert
R
Schupfner
Otto S
OS
Wolfbeis
D000818:Animals; D002250:Carbon Radioisotopes / Q000032:analysis*; D003132:Commerce / Q000331:legislation & jurisprudence; D003247:Conservation of Natural Resources; D003415:Crime; D004606:Elephants; D013058:Mass Spectrometry; D055641:Mathematical Concepts; D011868:Radioisotopes / Q000032:analysis*; D013326:Strontium Radioisotopes / Q000032:analysis*; D013910:Thorium / Q000032:analysis*
D002250:Carbon Radioisotopes; D011868:Radioisotopes; D013326:Strontium Radioisotopes; D013910:Thorium