NiLeDAM: Monazite Datation for the NiLeDAM team

Description Details Author(s) References Examples

Description

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.

Details

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).

Author(s)

Jean-Marc Montel [email protected]

Nathalie Villa-Vialaneix [email protected]

Maintainer: Nathalie Villa-Vialaneix

References

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

Examples

1
## Not run: demo(srilanka)

NiLeDAM documentation built on May 31, 2017, 3:19 a.m.