Here is a post looking at the details, how to access it, and why it remains a standard in geology and sedimentology.
For a detailed guide on how to use the software and interpret the results, you can refer to the original peer-reviewed publication and official documentation: gradistat v 91 link
: While specific documentation for "v 9.1" is less common on the official site than Version 8.0, it is cited in recent academic papers (e.g., studies on microplastics distribution) as the tool used for Folk and Ward grain size analysis . Key Features of GRADISTAT Here is a post looking at the details,
Prepare Your Data: Ensure you have your sieve sizes (in microns or phi) and the corresponding weights or percentages. how to access it