This 2-day course solves one of the great paradoxes of project evaluation – how to do more with less information!

During the early stage of a mining project, drillholes invariably sit on a relatively large grid, which is generally sufficient for estimating tonnes and grades into large blocks whose dimensions reasonably conform to the drill spacing.  However, such drill spacing is insufficient for the estimation of the recoverable resources required to properly assess mining projects at the stage of selective mining, yet an evaluation of the likelihood of production is required. There are a number of geostatistical and estimation techniques that allow us to assess the recoverable resources for project valuation when the relative drill spacing does not provide sufficient coverage for the direct estimation into small blocks or selective mining units (SMU) required at the production stage.

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Contact: Diana Titren – Training and Marketing Manager  dtitren@optiro.com