• AMS Dating of Human Bone from Palau: New Evidence for a Pre-2000 BP Settlement

      Fitzpatrick, Scott M. (Department of Geosciences, The University of Arizona, 2002-01-01)
      Direct dating of a human bone fragment from the Chelechol ra Orrak site (western Micronesia) has yielded one of the earliest dates for Palau thus far. This date compares well with recently collected paleoenvironmental evidence and radiocarbon dates on Babeldaob Island suggesting that settlement of the Palauan archipelago took place much earlier than previously thought.
    • Radiocarbon and Stable Isotope Analyses of Archaeological Bone Consolidated with Hide Glue

      Takahashi, C. M.; Nelson, D. E.; Southon, J. S. (Department of Geosciences, The University of Arizona, 2002-01-01)
      We tested a simple method for removing a collagen-based glue preservative from bone destined for radiocarbon and stable isotope analyses. The method is sufficient for bone samples from which only stable isotope measurements are required. For 14C dating, such samples of age less than about 10 ka can be adequately dated, but for older samples, the circumstances must be carefully evaluated.