ABSTRACT
The present paper deals with a dipping manganese deposit of Northern Greece. Though the deposit is rather low grade, it is rather important due to the fact that the contained metal is of battery-grade quality, much required in the battery making industry. The variable dip of the deposit imposed the necessity to apply the technique known as “unrolling of dipping ore-bodies”. The method “unrolls” ore-bodies of variable dip on a single plane and makes possible the simplification of all calculations and evaluations. Beside the above mentioned method, the evaluation concerns a rather low grade deposit divided in two Areas, A and B respectively, which are evaluated separately due to their different geostatistical characteristics, as these rise from the variogram parameters and models fitted to the experimental ones.
