• University of Granada Radiocarbon Dates VI

      Gonzalez-Gomez, Cecilio (Department of Geosciences, The University of Arizona, 1992-01-01)
      This paper includes determinations of archaeological, geological, palaeobotanical and other samples from Spain, Portugal and Bolivia, measured at the University of Granada Radiocarbon Dating Laboratory, mostly from 1989 to 1990. Pretreatment of charcoal and wood samples is a standard acid-basic procedure using 8% HCl and 2% NaOH at boiling temperature. We obtain collagen from bone samples using the Longin (1971) method.
    • University of Wisconsin Radiocarbon Dates XXVII

      Prior, Christine A.; Phelps, Lori F. (Department of Geosciences, The University of Arizona, 1992-01-01)
      Procedures and equipment used in the University of Wisconsin laboratory have been described previously (Bender, Bryson & Baerreis 1965; Steventon & Kutzbach 1986). Except as otherwise indicated, wood, charcoal and peat samples are pretreated with dilute NaOH-Na4P2O7 and dilute HCl before conversion to counting gas methane; when noted, marls and lake cores are treated with acid only.