While highly versatile, users should be aware that older versions of GRADISTAT might have compatibility issues with the newest versions of Excel (due to macro security updates). Always ensure your input data units match the expected input format (e.g., phi vs. millimeters). Conclusion
You can typically download legitimate free versions of the Excel macro from the following sources: GRADISTAT software - Kenneth Pye Associates Ltd
is a widely used software package designed for the rapid analysis of grain size statistics from unconsolidated sediments. Originally developed by Simon J. Blott and Kenneth Pye, it operates as an integrated macro within Microsoft Excel , making it highly accessible for researchers in geomorphology and sedimentology.
Research platforms like Figshare or specialized sedimentology forums may host these files. gradistat v 91 free
The program calculates grain size distribution metrics using two primary methodologies:
Review the : Classifies the sample based on gravel, sand, and mud ratios. Final Thoughts
: It automatically computes mean, mode, sorting, skewness, and kurtosis using both arithmetic and geometric (metric) and logarithmic (phi units) methods. While highly versatile, users should be aware that
Analysis of GRADISTAT v. 9.1: A Standard in Sedimentological Computing
When reporting results, include: software name (Gradistat), version (v91), date of analysis, and which calculation methods were used (e.g., Folk & Ward graphical method). This aids reproducibility and comparison across studies.
The ultimate guide to using Gradistat Version 9.1 for grain size analysis, including its key features, a complete installation walkthrough, and step-by-step instructions for processing your sedimentological data. Understanding Gradistat Version 9.1 : Automatically calculates critical sediment parameters
Based on the proportion of gravel, sand, mud, silt, and clay.
: Released in 2010 to support newer versions of Microsoft Excel (up to Excel 2010).
: Automatically calculates critical sediment parameters, including mean, mode, sorting (standard deviation), skewness, and kurtosis.
To access Gradistat V 9.1 for free, follow these steps:
Excel must have "Enable All Macros" or "Digitally Signed Macros" toggled on, as the entire calculation engine relies on background scripts. Step-by-Step Installation Guide