Dezirteer video tutorials
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Requirements for input data
Please read this section. It will save you from a lot of hassle
Samples and analyses should always be separated by one of the following symbols: _ - . ,
E.g.: VP-10_01, VP-10 — sample#, 01 — analysis#
Template
You can easily import geochronology data from any published (or unpublished) article by using a csv (comma-separated values) template. Here is how you do it:
  • Download the template
  • Open it with any spreadsheet software (e.g., MS Excel).
  • Fill out the required columns:
    • Analysis#. Make sure that sample number is separated from analysis number by one of the four symbols: comma(,), dot (.), underscore (_), or dash (-).
    • 207Pb/235U and its uncertainty
    • 206Pb/238U and its uncertainty
    • 207Pb/206Pb and its uncertainty
  • Fill out the optional columns. If data for them is not available, fill each cell with '-1' (discard the quote mark)
  • Make sure not to erase the "Dezirteer_template" in the first row.
  • When saving, make sure to save in the same .csv format (ignore the warnings that Excel scares you with).
  • The file is ready for import!
Iolite
  • The easiest (and highly recommended) way is to export all channels from Iolite.
  • The absolute necessary channels are:
    • Final206_238; Final206_238_Int2SE
    • Final207_235; Final207_235_Int2SE
    • Final208_232; Final208_232_Int2SE
    • Final207_206; Final207_206_Int2SE
  • It is of great benefit if you export both (required) internal and (highly desired) propagated uncertainties.
  • Having channels with 204Pb in denominator (e.g., Final206_204) will allow Dezirteer to calculate 204Pb-corrected ages (usually not an option for signal measured by Faraday detectors).
  • Channel Approx_U_PPM will allow filtering out grains with high uranium contents.
  • If there is an error during import, Dezirteer will likely notify, at which analysis the problem happened. Check the file for any irregularities.
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