Grade modelling of anomaly No.12A Iron deposit in Bafgh area, central of Iran

Anomaly No.12A iron deposit is located in Bafgh block in Central Iran. In exploration period, 19 exploratory boreholes were drilled. According to results, the grade behavior is composed of three populations. Since dividing these population physically and geologically was not possible, therefore, the whole grade population was considered as one. In this regard, the normal, lognormal and three parameter lognormal models have been studied. According to the results, the three parameter model was chosed for the deposit.