Open the tab labeled . Select your input unit preference (Microns, Millimeters, or Phi) from the dropdown menu. Paste your sieve mesh sizes into the designated size column. Next, paste your sample names horizontally across the top row, and fill down the columns with the respective weight or percentage values for each sample. Running the Analysis and Interpreting Results
Stop doing the math manually and speed up your data analysis! Download it now and streamline your thesis or research paper.
Calculates Folk & Ward (1957) graphical measures: mean, sorting, skewness, and kurtosis, plus moment measures (after Friedman, 1962).
: Including X-ray sedigraph and Coulter counters. gradistat v 91 free
The program will generate a new sheet named Summary . This table displays the sample name, mean grain size, sorting classification (e.g., Well Sorted, Moderately Sorted), skewness, kurtosis, and the precise Folk textural description for every sample in your batch.
It eliminates manual calculation errors, which are common when dealing with large datasets of sieving.
Double-click the Gradistat file. If a yellow warning bar appears at the top of the screen reading "Security Warning: Macros have been disabled," click Enable Content . Preparing and Inputting Your Data Open the tab labeled
: Beyond numbers, it assigns descriptive sediment textures based on the Folk (1954) classification and the Wentworth (1922) size scale.
The original version, which many still use today, was written for Microsoft Excel 97 and 2000. An updated version, 8.0, was released in December 2010, extending compatibility to Excel versions up to 2010. Version 9.1 represents a subsequent iteration, which, according to scientific literature, has been used in various studies for grain size analysis.
2.00: very poorly sorted
Ideal for environmental research, forensic investigation, and sedimentological studies. ResearchGate
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