... to an acceptable .001 ounces per ton gold equivalent. A comparison of mine versus mill grades for the ... This program has the capability of calculating tons and ...
... a regular grid so that in calculating the variogram ... the weighted average of the grades of the ... boundaries) represent only selected, non-equivalent sections of a ...
... by taking the mean of all blasthole grades within a ... copper, grindability, rock type and metal prices when calculating the combined equivalent copper grade. ...
...grades can be found by calculating NNSRs for the grades of a representative ... set of multipliers to apply to the grades to obtain dollar value equivalent grades. ...
...grades can be found by calculating NNSRs for the grades of a representative ... set of multipliers to apply to the grades to obtain dollar value equivalent grades. ...
... takes into account the fact that block grades are less skewed and less variable than sample grades. ... Figure 4. Calculating the Gaussian Equivalent for a ...
... To determine ifa deposit is economically mineable, cut-off grades must be established to determine the ... 4.1.2 In calculating the "equivalent stripping ratio ...
... large number of combinations of these grades that are ... involve the calculation of a "copper equivalent" grade, as ... This is achieved by calculating the value of ...
... large number of combinations of these grades that are ... the calculation of a “copper equivalent” grade, as ... This is achieved by calculating the value of the ...
AUTHOR
Baird, B. K. ; Satchwell, P. C.
PUBLISHED
1999
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