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TUTORIAL:

Ratio Map Creation and Manipulation

Create a preset ratio map

  1. Click on the Ratios tab to select it. Initially there are no ratio maps so the list is empty. To create one, click on the New ratio button at the bottom of the tab.

  2. A new dialog box is displayed containing two tabs, one for Preset and one for Custom. Keep the Preset tab selected.

  3. Under Valid presets there is a list of the presets that are available for this project which is determined by the elements that exist in the project. For this test project the valid presets are anorthite, Cr# and Mg#.

  4. Click on one of the available presets. The formula for this preset will be displayed below the list, as well as the name of the preset. You can edit the name if you wish. Ratio map names are unique so you cannot create a new ratio map with the same name as an existing one.

  5. Below the name is a list of correction models that can be applied. By default no correction model is selected; you can choose a different one if you wish.

  6. Click OK to create the new ratio map.

  7. The dialog box will close and the new ratio map will be added to the list on the left. Its name, formula and correction model are displayed.

  8. The new ratio map is automatically selected in the list on the left so that it is displayed in the plot on the right.

  9. You can change the name of a ratio by double-clicking on it, and you can delete the current selected ratio map by clicking on the Delete ratio button at the bottom of the tab.


Create a custom ratio map

  1. Click on the New ratio button at the bottom of the Ratios tab, and select the Custom ratio tab.

  2. Here you create a custom ratio by specifying the elements that comprise the ratio. It is possible to create a ratio of 2, 3 or 4 elements. Choose how many elements, e.g. 2, and those elements to use, e.g. Ca and Mg.

  3. As you change the elements, the Formula is updated.

  4. Enter a unique name to use for this ratio map, and optionally a correction model.

  5. Click OK to create the custom ratio map.

  6. The new ratio map is added to the list on the left and automatically selected so that it is displayed in the plot on the right.

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