• A Comparison of Methods Used for the Calibration of Radiocarbon Dates

      Aitchison, T. C.; Leese, Morven; Michczynska, Danuta J.; Mook, W. G.; Otlet, R. L.; Ottaway, B. S.; Pazdur, Mieczysław F.; van der Plicht, Johannes; Reimer, P. J.; Robinson, S. W.; et al. (Department of Geosciences, The University of Arizona, 1989-01-01)
      Current calibration methods for single and replicate 14C dates are compared. Various forms of tabular and graphic output are discussed. Results from all the methods show reasonable agreement but further methodological development and improvements in computer output are required. Comparison of existing techniques for a series of non-contemporaneous dates showed less agreement amongst participants on this issue. We recommend that calibrated dates should be presented as a combination of graphs and ranges, in preference to mean and standard deviation.
    • Calibration of Radiocarbon Ages by Computer

      van der Plicht, Johannes; Mook, W. G. (Department of Geosciences, The University of Arizona, 1989-01-01)
      A PC-based computer program for automatic calibration of 14C dates has been developed in Turbo-Pascal (version 4.0). It transforms the Gaussian 14C dating result on the 3-sigma level into a real calendar age distribution. It uses as a calibration curve a spline function, generated along the calibration data points as published in the Radiocarbon Calibration Issue. Special versions of the code can average several 14C dates into one calibrated result, generate smoothed curves by a moving average procedure and perform wiggle matching.
    • The Need for a Calibrated Radiocarbon Chronology of Near East Archaeology

      Bruins, H. J.; Mook, W. G. (Department of Geosciences, The University of Arizona, 1989-01-01)
      Progress in radiocarbon dating and calibration accuracy should lead to the development of a calibrated radiocarbon chronology of Near Eastern archaeology, particulary for historical times. The lack of such an independent and impartial chronology is a major constraint, not only in archaeological studies, but also for interdisciplinary research involving the history of man, landscape and climate in the Near East and adjacent regions.