Figure 3. Part of Iolite's two-dimensional imaging interface, showing thumbnail images of each available output channel of the currently selected data reduction scheme for a speleothem calcite sample. The three dimensional image is modified using the control panel at lower left, and can be either a red-green-blue composite of separate output channels, or an indexed colour map using any of Igor Pro's 58 built-in colour scales.  The Z axis can be set independently, allowing 3-D visualisation of between one and four output channels at one time. In this example, elemental abundances have been calculated using an external standard via normalisation to calcium.

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