StalAge

StalAge is an R (R Core Team, 2016) code developed to construct age models for speleothems (Scholz and Hoffmann, 2011; Scholz et al., 2012). It was specifically designed to construct speleothem age-depth models based on 230Th/U-ages, but it can also be applied to other archives and age data.

StalAge was originally developed for R 2.10.1. In principle, StalAge also works with the most recent version of R, but a few problems/crashes have been reported. Thus, we recommend using version 2.10.1 of R to guarantee accurate application.

Download
(with clicking download you get forwarded to our university filesharing site, where you can use the anonymous login to get access to the necessary files)

Installation of R 2.10.1 and the required packages

  1. Uninstall potential other versions of R on your computer
  2. Unzip the installation files for R 2.10.1
  3. Install R 2.10.1
  4. Unzip the R packages "splines", "survival", and "tcltk" (Folder "packages_1"). These are required for the application of StalAge.
  5. Copy the folders of the corresponding packages into the folder “C:\Program Files\R\R-2.10.1\library” on your computer.
  6. Unzip the R packages "Hmisc", "rpanel", and "plotrix" (Folder "packages_2").
  7. These folders should be copied into the following folder on your computer: “C:\Users\your_user_name\Documents\R\win-library\2.10”
    “your_user_name” is the name of your user account on your computer.
     

Application of StalAge

The folder "StalAge" contains the R code of StalAge 1.0, detailed step-by-step instructions for its application as well as example data and figures. In case of any problems or questions, please us.

 

References

R Core Team, 2016. R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna, Austria.
 

Scholz, D. and Hoffmann, D. L., 2011. StalAge – an algorithm designed for construction of speleothem age models. Quaternary Geochronology 6, 369-382.
 

Scholz, D., Hoffmann, D. L., Hellstrom, J., and Bronk Ramsey, C., 2012. A comparison of different methods for speleothem age modelling. Quaternary Geochronology 14, 94-104.