Graphical representation of particle shape using triangular diagrams: an Excel spreadsheet method
Abstract
Analysis of the shape of sedimentary particles can provide information about their transport history and aid facies differentiation and the characterization of depositional environments. Triangular (Sneed and Folk) diagrams, employing ratios of the three orthogonal particle axes, have been advocated as the most appropriate method for unbiased presentation of primary particle shape data. A spreadsheet method for the production of these diagrams is described. Clast data-sets from a range of environments are presented using this method. An alternative use of the spreadsheet for the presentation of sedimentary fabric shape is suggested. Copyright
- Publication:
-
Earth Surface Processes and Landforms
- Pub Date:
- December 2000
- DOI:
- Bibcode:
- 2000ESPL...25.1473G
- Keywords:
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- clast morphological analysis;
- particle shape;
- triangular diagram;
- spreadsheet