IsoplotR: Statistical Toolbox for Radiometric Geochronology

Plots U-Pb data on Wetherill and Tera-Wasserburg concordia diagrams. Calculates concordia and discordia ages. Performs linear regression of measurements with correlated errors using 'York', 'Titterington', 'Ludwig' and Omnivariant Generalised Least-Squares ('OGLS') approaches. Generates Kernel Density Estimates (KDEs) and Cumulative Age Distributions (CADs). Produces Multidimensional Scaling (MDS) configurations and Shepard plots of multi-sample detrital datasets using the Kolmogorov-Smirnov distance as a dissimilarity measure. Calculates 40Ar/39Ar ages, isochrons, and age spectra. Computes weighted means accounting for overdispersion. Calculates U-Th-He (single grain and central) ages, logratio plots and ternary diagrams. Processes fission track data using the external detector method and LA-ICP-MS, calculates central ages and plots fission track and other data on radial (a.k.a. 'Galbraith') plots. Constructs total Pb-U, Pb-Pb, Th-Pb, K-Ca, Re-Os, Sm-Nd, Lu-Hf, Rb-Sr and 230Th-U isochrons as well as 230Th-U evolution plots.

Version: 6.1
Depends: R (≥ 3.0.0)
Imports: MASS
Published: 2024-02-16
Author: Pieter Vermeesch [aut, cre]
Maintainer: Pieter Vermeesch <p.vermeesch at>
License: GPL-3
NeedsCompilation: no
Citation: IsoplotR citation info
Materials: README NEWS
CRAN checks: IsoplotR results


Reference manual: IsoplotR.pdf


Package source: IsoplotR_6.1.tar.gz
Windows binaries: r-prerel:, r-release:, r-oldrel:
macOS binaries: r-prerel (arm64): IsoplotR_6.1.tgz, r-release (arm64): IsoplotR_6.1.tgz, r-oldrel (arm64): IsoplotR_6.1.tgz, r-prerel (x86_64): IsoplotR_6.1.tgz, r-release (x86_64): IsoplotR_6.1.tgz
Old sources: IsoplotR archive

Reverse dependencies:

Reverse depends: provenance
Reverse imports: bayclumpr, gamma, IsoplotRgui


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