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:
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);
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);
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 jean-marc.montel@ensg.inpl-nancy.fr
Nathalie Villa-Vialaneix nathalie@nathalievilla.org
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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