• Towards a Radiocarbon Chronology of the Late-Glacial: Sample Selection Strategies

      Walker, M. J. C.; Bryant, C.; Coope, G. R.; Harkness, D. D.; Lowe, J. J.; Scott, E. M. (Department of Geosciences, The University of Arizona, 2001-01-01)
      This paper outlines a dating program designed to test the reproducibility of radiocarbon dates on different materials of Late-Glacial age (plant macrofossils, fossil beetle remains, and the "humic" and "humin" chemical fractions of limnic sediments) using a combination of radiometric (beta counting) and accelerator mass spectrometry (AMS) techniques. The results have implications for the design of sampling strategies and for the development of improved dating protocols, both of which are important if a high-precision 14C chronology for the Late-Glacial is to be achieved.