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Development of the Radiocarbon Calibration Program

  • Christopher Bronk Ramsey (a1)
Abstract

This paper highlights some of the main developments to the radiocarbon calibration program, OxCal. In addition to many cosmetic changes, the latest version of OxCal uses some different algorithms for the treatment of multiple phases. The theoretical framework behind these is discussed and some model calculations demonstrated. Significant changes have also been made to the sampling algorithms used which improve the convergence of the Bayesian analysis. The convergence itself is also reported in a more comprehensive way so that problems can be traced to specific parts of the model. The use of convergence data, and other techniques for testing the implications of particular models, are described.

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References
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Bronk Ramsey, C, Allen, MJ 1999. Analysis of the radiocarbon dates and their archaeological significance. In: Cleal, RMJ, Walker, KE, Montague, R, editors. Stonehenge in its landscape: twentieth century excavations. London, English Heritage. p 526–35.
Bronk Ramsey, C. 1994. Analysis of chronological information and radiocarbon calibration: The program OxCal. Archaeological Computing Newsletter 41:11–6.
Bronk Ramsey, C. 1995. Radiocarbon calibration and the analysis of stratigraphy. Radiocarbon 37(2):425–30.
Bronk Ramsey, C. 1998. Probability and dating. Radiocarbon 40(1):461–74.
Buck, CE, Kenworthy, JB, Litton, CD, Smith, AFM. 1991. Combining archaeological and radiocarbon information: a Bayesian approach to calibration. Antiquity 65: 808–21.
Buck, CE, Litton, CD, Smith, AFM. 1992. Calibration of radiocarbon dates pertaining to related archaeological events. Journal of Archaeological Science 19:497512.
Buck, CE, Litton, CD, Scott, EM. 1994. Making the most of radiocarbon dating: some statistical considerations. Antiquity 68:252–63.
Gilks, WR, Richardson, S, Spiegelhalter, DJ. 1996. Markov Chain Monte Carlo in practice. Chapman and Hall, London.
Needham, S, Bronk Ramsey, C, Coombs, D, Cartwright, C, Pettitt, PB. 1998. An independent chronology for British Bronze Age metalwork: the results of the Oxford Radiocarbon Accelerator Programme. Archaeological Journal 154:55107.
Steier, P, Rom, W, Puchegger, S. 2001. Critical aspects of Bayesian mathematics in 14C calibration. Radiocarbon. This issue.
Stuiver, M, Reimer, PJ. 1993. Extended 14C database and revised CALIB radiocarbon calibration program. Radiocarbon 35:215–30.
Stuiver, M, Reimer, PJ, Bard, E, Beck, JW, Burr, GS, Hughen, KA, Kromer, B, McCormac, G, van der Plicht, J, Spurk, M. 1998. INTCAL98 radiocarbon age calibration, 24000–0 cal BP. Radiocarbon 4 0(3):10 4183.
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Radiocarbon
  • ISSN: 0033-8222
  • EISSN: 1945-5755
  • URL: /core/journals/radiocarbon
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