![how to make ternary diagram how to make ternary diagram](https://www.chemix-chemistry-software.com/images/screenshots/ternary-plot-phase-diagram.gif)
This page provides links to several spreadsheet templates that can help with the plotting of data on chemographic projections.
![how to make ternary diagram how to make ternary diagram](http://chemetal-journal.org/ejournal14/online_abstract/CMA0265_online_abstract.files/image002.jpg)
Often, interpretation is facilitated by transforming the chemical components of the mineral or rock analysis (generally oxides of the elements) to new chemical components that are either plotting coordinates (the corners of the diagram) or the compositions of projection (or ignored) phases. Compositions, Components, and Projectionsįor some purposes, graphing composition data is more meaningful if components are changed. Also, highly recommended is Steve Nelson's Triangular Plots in Metamorphic Petrology. For details about these and other ways to project mineral compositions, see standard text or some of the references listed below. Commonly used chemographic projections include ACF, AKF, and AFM (example shown here) diagrams. The trick is to find a way to project 8 (or more) compositional space onto a piece of paper and still have something meaningful.ĭifferent purposes and different chemical systems require different kinds of projections.
![how to make ternary diagram how to make ternary diagram](https://i.stack.imgur.com/Ocz8V.png)
A number of approaches are used, all of which produce chemographic projections - projections of many components onto 2-dimensional diagrams.Ī typical metamorphic rock may have 8 or more important components. Most of the time, petrologists prefer to find some way to reduce the number of components to three so that triangular diagrams may be used. Sometimes petrologists create 3-dimensional diagrams to show a four component system, but such diagrams are frequently hard to visualize.ĪFM diagram with some common pelitic minerals plotted. If a system has more than three components, it cannot be plotted in two dimensions.
![how to make ternary diagram how to make ternary diagram](https://i.ytimg.com/vi/KvGJoLIp3Sk/maxresdefault.jpg)
Systems With More Than Three Components & Chemographic Projections this particular reaction requires only two components, SiO 2 and Al 2O 3): Note also that Qz, Ky and Co plot on a line in this ternary diagram, so there is a (degenerate) reaction (i.e.