Colours

The age contours of both ternary diagrams and logration plots can be changed by clicking Options → Colours → Contour Colours. This brings up a colour scale, the minimum and maximum values of which can be selected by clicking the appropriate swatches or adjusting the RGB sliders.

A separate set of colours is used for the error ellipses of the (U-Th)/He data, which can be set by clicking Options → Colours → Ellipse Colours. If the (U-Th)/He option is selected in Options → Input, then the auxiliary column [C] is used for the colour code, which consists of 100 steps, calculated by linear interpolation between the minimum and maximum values of this column. If the (U-Th-Sm)/He option is selected in Options → Input, then the colour scale will be based on the Sm values.

See entering data, scale