• An Improved Method for Radiocarbon Dating Fossil Bones

      Arslanov, Kh A.; Svezhentsev, Yu S. (Department of Geosciences, The University of Arizona, 1993-01-01)
      We demonstrate here that the use of either the acid-alkali or Longin method alone does not fully extract contaminants from bone-collagen fractions. We present our methods and results of extracting bone collagen that involve successive use of both of these methods.
    • Late Paleolithic Chronology of the East European Plain

      Svezhentsev, Yu S.; Popov, S. G. (Department of Geosciences, The University of Arizona, 1993-01-01)
      We report 172 dates on osseous material from Paleolithic sites of the East European Plain.
    • Radiocarbon Chronology of Early Medieval Archaeological Sites in Northwestern Russia

      Popov, S. G.; Svezhentsev, Yu S.; Zaitseva, G. I. (Department of Geosciences, The University of Arizona, 1993-01-01)
      A reliable archaelogical chronology for medieval sites in northwestern Russia depends in part on a refined regional calibration scale for 14C dates. We present results of dates on tree-ring series from Novgorod that show a systematic discrepancy from European calibration curves, and that underline the need for more extensive 14C dating as the basis of an extended calibration curve for the region.