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The main cut-off parameter that determines the quality of iron ore resources and reserves is Fe cut-off grade. We often use the content of iron associated with magnetite for BIF deposits. The purpose of the study is to define the method of optimal values selecting for Fe cut-off grade. This value for resources calculation should be acceptable and effective, both for the owner of the subsoil resources, and for mining enterprises. It is proposed a method for choosing the optimum values of cut-off grade Fe in evaluat...

The issues of the spatial distribution of complex occurrence of surficial type uranium and strontium mineralization are presented. In this study, we show the preliminary results of complex processing of remote sensing and ground data, including detailed geological mapping, geochemical and mineralogical assays, geophysics made by analysis in GIS. We found a significant variation in commodities co-distribution, which impacts the resource classification. The investigated area is located in arid conditions of south-we...

The resource base of Ukraine has 60 deposits of iron ore with proven reserves. The quality assessment of these objects was carried out during their exploration several decades ago. Commodity products of domestic mining enterprises are various types of iron ore, concentrate, pellets, agglomerate. Mostly commodity concentrates have a total iron content of 64-65%. The best indicators (more than 67% of Fe total) are characteristic of certain types of concentrates of Central and Ingulets enterprises. The quality of com...