Dealing with outliers and offsets in radiocarbon dating 10 rules for dating my daughter joke


07-Nov-2019 23:27

All of these Bayesian approaches can be used either for outlier detection and rejection or in a model averaging approach where dates most likely to be outliers are downweighted.

Another important subject is the consistent treatment of correlated uncertainties between a set of measurements and the calibration curve.

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The wide availability of precise radiocarbon dates has allowed researchers in a number of disciplines to address chronological questions at a resolution which was not possible 10 or 20 years ago.

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In this paper the use of a similar approach for other kinds of correlated offset (such as overall measurement bias or regional offsets in the calibration curve) is discussed and the implementation of these methods in Ox Cal v4.0 is presented.

However there are Bayesian statistical methods which can be used to perform this rejection in a more objective way (Christen, 1994b) but these are not often used.

This paper discusses the underlying statistics and application of these methods, and extensions of them, as they are implemented in Ox Cal v4.1.

In this paper, we present a method for wiggle-matching Southern Hemisphere data sets against Northern Hemisphere curves, using the Bayesian calibration program Ox Cal 4.1 with the Reservoir Offset function accommodating a potential interhemispheric offset.

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The accuracy and robustness of this approach is confirmed by wiggle-matching known-calendar age sequences of the Southern Hemisphere calibration curve SHCal04 against the Northern Hemisphere curve Int Cal04.

We appreciate support from Robert Spengler (Max Planck Institute for the Science of Human History) and Fengshi Luan (Shandong University).