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      Reinvestigating a key site for Polynesian prehistory: new results from the Hane dune site, Ua Huka (Marquesas) : Reinvestigating the Hane dune site

      1 , 1
      Archaeology in Oceania
      Wiley

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          IntCal09 and Marine09 Radiocarbon Age Calibration Curves, 0–50,000 Years cal BP

          The IntCal04 and Marine04 radiocarbon calibration curves have been updated from 12 cal kBP (cal kBP is here defined as thousands of calibrated years before AD 1950), and extended to 50 cal kBP, utilizing newly available data sets that meet the IntCal Working Group criteria for pristine corals and other carbonates and for quantification of uncertainty in both the14C and calendar timescales as established in 2002. No change was made to the curves from 0–12 cal kBP. The curves were constructed using a Markov chain Monte Carlo (MCMC) implementation of the random walk model used for IntCal04 and Marine04. The new curves were ratified at the 20th International Radiocarbon Conference in June 2009 and are available in the Supplemental Material atwww.radiocarbon.org.
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            Radiocarbon Calibration and Analysis of Stratigraphy: The OxCal Program

            People usually study the chronologies of archaeological sites and geological sequences using many different kinds of evidence, taking into account calibrated radiocarbon dates, other dating methods and stratigraphic information. Many individual case studies demonstrate the value of using statistical methods to combine these different types of information. I have developed a computer program, OxCal, running under Windows 3.1 (for IBM PCs), that will perform both 14C calibration and calculate what extra information can be gained from stratigraphic evidence. The program can perform automatic wiggle matches and calculate probability distributions for samples in sequences and phases. The program is written in C++ and uses Bayesian statistics and Gibbs sampling for the calculations. The program is very easy to use, both for simple calibration and complex site analysis, and will produce graphical output from virtually any printer.
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              Development of the Radiocarbon Calibration Program

              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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                Author and article information

                Journal
                Archaeology in Oceania
                Archaeology in Oceania
                Wiley
                07284896
                October 2014
                October 2014
                June 03 2014
                : 49
                : 3
                : 121-136
                Affiliations
                [1 ]CIRAP / UMR7041 ArScAn; University of French Polynesia
                Article
                10.1002/arco.5037
                ecd6c0f7-d71a-4d09-bdd4-01c8bec48553
                © 2014

                http://doi.wiley.com/10.1002/tdm_license_1.1

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