Smearing Analysis App

Grade smearing can occur when a small high grade interval is used to increase the grade of a wider interval, that may be very low grade on its own.

This can change the nature of the deposit; from a narrow vein high grade mine to a lower cost bulk mining scenario.  However the bulk mining itself may be marginal if not for the high grade "including" intervals that boost the entire interval grade.

Main Interval: is the length and grade(s) of large interval being reported.

Including:  are the length and grade(s) of the various highlighted zones.

Remainder of Intercept:  is the length and average grade(s) outside the "included" zones.

Is the Remainder economic or marginal?

You can also save or re-load your smearing scenarios (saved in a json file in your Downloads folder)