TERNARY DIAGRAM ONLINE SOFTWARE
From their web page: "Igor is an extraordinarily powerful and extensible scientific graphing, data analysis, image processing and programming software tool for scientists and engineers. (2005) Petrograph: a New Software to Visualize, Model, and Present Geochemical Data in Igneous Petrology, Geochem. Source code is written in MS Visual Basic 6.0 and it runs under Windows 98/2000/XP platforms. Possible to plot many classification diagrams and "petro-tectonic" plots.
Informative website, and short learning time. Interpretation of whole-rock geochemical data in igneous geochemistry: introducing Geochemical Data Toolkit (GCDkit). Details can be found in: Janoušek, V., Farrow, C. (a computer language for statistical computing and graphics). Compatible with Excel, which makes it easy to manipulate data and calculate things with formulas. If you select a point or cluster of points on a plot, it is highlighted in the spreadsheet. Templates for various kinds of plots (ternary, spider diagrams etc.) available.
TERNARY DIAGRAM ONLINE FOR MAC
Diagrams can be exported to most drawing programs, such as Corel, for "prettying up". Most "canned plots" or "stock diagrams" can be generated. Spider diagrams include REES, Wood, Thompson, Sun and McDonough etc.). CMAS projections include O'Hara, Walker, Grove, Baker and Eggler etc. the Irvine and Baragar (1971) rock classification scheme, are stored in control files that can be expanded easily. A calculator includes (+ - / *), Log, square, square root, ppm and chondrite functions.