Studio 3 Geostatistics - Other Options (1)

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SMUMOD The SMUMOD process uses the 'Lognormal Shortcut' method to estimate the recovered tonnage and recovered grade above a single user defined cut-off for a specified size of Selective Mining Unit (smu). The input file must be a standard model file containing a kriged grade estimate and a kriged variance. The output model file contains all the fields from the input file plus two additional fields: •the proportion of the block above the cut-off; •the grade of the proportion above cut-off. A Selective Mining Unit (SMU) is the smallest block size that can be mined selectively. The Dimension of an SMU are defined by parameter.

SMUHIS
The SMUHIS process creates a histogram file by evaluating a kriged model using the 'Lognormal Shortcut' method and estimating the tonnage distribution over the range of cutoffs specified for the histogram intervals for a specified size of Selective Mining Unit (smu). The data in this file can then be used to create grade/tonnage plots.

FFUNC
FUNC estimates the geostatistical F function.  That is the variance of a point in a block based on a variogram model which is selected from the input variogram model file. The block whose F value is to be calculated is simulated by a 3 dimensional matrix of discretisation points. The F value is calculated as the average value of the variogram between each possible pair of discretisation