Studio 3 Block Modelling - Rotated Block Models

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A Rotated Model is one whose axes, and therefore cells, are rotated with respect to the coordinate system. It is particularly useful in the situation where you have a stratified orebody which is dipping and/or plunging. As you can see from the diagram Below the model cells provide a much better fit when the model Is rotated. Using a rotated model aligned to one or more of the major axes used to model the structure or shape of a deposit has the following advantages;

• a smaller number of subcells can be used
• the subcells provide a better fit to the boundary
• in particular circumstances there can be a small improvement in the grade evaluation.