Bayesian analysis of radiocarbon dates
TLDR
An overview of the main model components used in chronological analysis, their mathematical formulation, and examples of how such analyses can be performed using the latest version of the OxCal software (v4) are given.Abstract:
If radiocarbon measurements are to be used at all for chronological purposes, we have to use statistical methods for calibration. The most widely used method of calibration can be seen as a simple application of Bayesian statistics, which uses both the information from the new measurement and information from the 14C calibration curve. In most dating applications, however, we have larger numbers of 14C measurements and we wish to relate those to events in the past. Bayesian statistics provides a coherent framework in which such analysis can be performed and is becoming a core element in many 14C dating projects. This article gives an overview of the main model components used in chronological analysis, their mathematical formulation, and examples of how such analyses can be performed using the latest version of the OxCal software (v4). Many such models can be put together, in a modular fashion, from simple elements, with defined constraints and groupings. In other cases, the commonly used "uniform phase" models might not be appropriate, and ramped, exponential, or normal distributions of events might be more useful. When considering analyses of these kinds, it is useful to be able run simulations on synthetic data. Methods for performing such tests are discussed here along with other methods of diagnosing possible problems with statistical models of this kind.read more
Citations
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Journal ArticleDOI
Archaeobotanical proxies and archaeological interpretation: A comparative study of phytoliths, pollen and seeds in dung pellets and refuse deposits at Early Islamic Shivta, Negev, Israel
Zachary C. Dunseth,Zachary C. Dunseth,Daniel Fuks,Dafna Langgut,Dafna Langgut,Ehud Weiss,Yoel Melamed,Don H. Butler,Xin Yan,Elisabetta Boaretto,Yotam Tepper,Guy Bar-Oz,Ruth Shahack-Gross +12 more
TL;DR: In this article, a comparison of three archaeobotanical proxies (phytoliths, pollen and seeds) applied to an assemblage of dung pellets and corresponding archaeological refuse deposits from Early Islamic contexts at the site of Shivta is presented.
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geoChronR - an R package to model, analyze, and visualize age-uncertain data
TL;DR: GeoChronR as mentioned in this paper is an open-source R package for propagating age-model uncertainties to subsequent analyses, and visualizing the results, which has received comparatively little attention in the literature.
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Chronology of the Danish Bronze Age Based on 14C Dating of Cremated Bone Remains
TL;DR: In this article, the authors presented high-precision 14C dating on burials with well-defined associated archae- ological periods in order to improve the absolute chronology of the Danish Bronze Age.
Hierarchical Bayesian modeling for combining dates in archaeological context
Philippe Lanos,Anne Philippe +1 more
TL;DR: A Bayesian approach is proposed for combining dates from different dating methods used in archeology, which provides an automatic way to penalize outlying data.
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Evidence for Seven Surface Ruptures in the Past 1600 Years on the Claremont Fault at Mystic Lake, Northern San Jacinto Fault Zone, California
TL;DR: In this article, the authors present new data from the Mystic Lake paleoseismic site along the Claremont segment of the northern San Jacinto fault zone, located within a sag formed between two fault strands that pass through the eastern side of Mystic Lake.
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