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Monte Carlo approach to calculate US-ESR age and age uncertainty for tooth enamel.
- Source :
- Quaternary Geochronology; Aug2014, Vol. 22, p99-106, 8p
- Publication Year :
- 2014
-
Abstract
- Abstract: The combination of electron spin resonance (ESR) and U-series dating approach is increasingly being used to fossil teeth from archaeological sites. A rigorous age uncertainty assessment is needed for this dating method. However, it is difficult to provide partial derivatives of the combined ESR/U-series (US) model, as required by the law of propagation of uncertainties. In this study, we developed a new age calculation MATLAB program, called USESR, using a Monte Carlo approach for estimating the age and the age uncertainty for tooth enamel. Tests have been performed with virtual samples (n = 64). The results suggest that this Monte Carlo approach can provide reliable US-ESR age and reduced age uncertainty in comparison with those obtained by the routinely used program, DATA. The results also show that the new program has higher tolerance limits of U-series disequilibrium than the DATA program for US-ESR age calculations. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 18711014
- Volume :
- 22
- Database :
- Supplemental Index
- Journal :
- Quaternary Geochronology
- Publication Type :
- Academic Journal
- Accession number :
- 96248394
- Full Text :
- https://doi.org/10.1016/j.quageo.2014.03.003