Define Grade Curves

To access this screen:

  • Using the Tasks Pane's Reports command group, select Custom >> Grade Curves.

Grade curve reports show ore type tonnages classified by grades of mineral elements for a selected pit shell (surface). A curve grade report can include one or more report items where each item represents one grade curve.

An example of a cumulative grade curve report

To generate grade curves for a selected pit shell:

  1. Display the Define Grade Curves screen.

  2. Expand Generate grade curves for to pick a surface file.

  3. Select the range of limiting surfaces using Within Range controls. For example, if a pushback file defines 10 pushbacks and you are only interested in pushback 5's grade curves, enter 5 as First pit code and 5 as Last pit code.

  4. Add a grade curve to the report using the Grade Curve Properties screen.

    • You can also select an existing grade curve report item and Edit it.

    • Delete any grade curve report items you no longer need.

  5. Click OK to display the selected item's grade curve report in a new window.

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