| NiLeDAM {NiLeDAM} | R Documentation |
Monazite Dating for the 'NiLeDAM' Team
Description
The aim here is to provide facilities to date monazite using electron microprobe analysis (EPMA). More precisely, the 'NiLeDAM' package 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 analytic 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 (
\chi^2-test) -
number of populations estimation from the calculated ages, it estimates the most probable number of age populations from which the analyses come.
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)
Aurélie Mercadié, aurelie.mercadie@inrae.fr
Jean-Marc Montel, jean-marc.montel@ensg.inpl-nancy.fr
Nathalie Vialaneix, nathalie.vialaneix@inrae.fr
Maintainer: Nathalie 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
## Not run: demo(srilanka)