Description Details Author(s) References Examples

This package provides facilities to date monazite using electron microprobe analysis (EPMA). More precisely, it has three main features:

- ages calculation
from a set of analyses of the triplets (U,Th,Pb) contents and corresponding errors, it calculates the age of each analytical point by solving Equation (1) of Montel

*et al.*(1996);- common age(s) estimation
from these results, it estimates the common age(s) under the assumption that the analyses come from a given number of age populations and test for this assumption (

*chi2*-test);- number of populations estimation
from the calculated ages, it estimates the most probable number of age populations from which the analyses come.

Package: | NiLeDAM |

Type: | Package |

Version: | 0.1 |

Date: | 2013-08-19 |

License: | GPL (>= 2) |

Repository: | R-Forge |

The package contains two main functions `calculateAges`

, that
calculate the ages and `tests`

, that test for the number of age
populations.

An example is provided with the data `srilanka`

, which can be run
using `demo(srilanka)`

.

Jean-Marc Montel [email protected]

Nathalie Villa-Vialaneix [email protected]

Maintainer: Nathalie Villa-Vialaneix

Montel J.M., Foret S., Veschambre M., Nicollet C., Provost A. (1996) Electron
microprobe dating of monazite. *Chemical Geology*, **131**, 37–53.

1 | ```
## Not run: demo(srilanka)
``` |

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