Abstract:

The block method and the geologic body unit method are two most common statistic methods in mineral prediction, but both have advantages and disadvantages. Taking contact metasomatic iron copper deposits in Qimantage as examples, authors introduce the mineral resource prediction of these deposits by the two methods mentioned above on basis of the prospecting prediction model. The geologic body unit method is used to delineate the boundaries of geological bodies; meanwhile, the geologic block method is used to divide the geologic body into geologic grid. The results of the two methods are consistent with each other, which indicates that the new body method is credible. Finally, the authors prospect the target areas based on the forecast area. The target areas are not only the high value areas in posterior probability but also the most favorable mineralized areas.

Key words: block method, geologic body unit method, Qimantage, prospecting forecasting model, classification of geologic body