North Caucasian Institute of Mining and Metallurgy (State Technological University), Vladikavkaz, Russia:

Kh. Kh. Khozhiev, Dean, Doctor of Engineering Sciences
I. I. Bosikov, Associate Professor, Candidate of Engineering Sciences, igor.boss.777@mail.ru

The aim of this work is the analysis of the variability of the main fi eld-geologic parameters of a useful component within the proven area of a mineral deposit. The analysis of the values of an integrated index will highlight the most promising areas for the further exploration. The objectives of this study given the available source data is the mapping of:
– actual surface elevations (detailed topographic base);
– thickness of useful strata;
– capacity of overburden;
– stripping ratio;
– particle content;
– size modulus.
The other objectives of the study are to develop an integrated index for geological–commercial evaluation and the index distribution mapping. By interpolating inverse weighted distances, a surface map was obtained (digital elevation model). This method assumes that each input point aff ects the estimated point depending on the distance. The estimated values can be either a certain number of neighbor points or all points within the specified distance. The calculation is performed by the method of sliding window. The digital elevation modeling used 120 points and their distribution over the area was quite uniform but irregular, for this reason, we chose the inverse weighted distance interpolation as the most appropriate approach. The digital elevation model was required due to the fact that the analog drawings gave almost no information about elevations of points while these data were to be used later on for the calculation of the useful thickness in the inter-well areas. Thus, the performed researches showed that the method of zoning with the subsequent calculation of the integrated index of mineral body exploitability can be used to support a reasonable selection of mineral fields that are most promising for the further exploration. This is especially important when appraisal of a deposit involves a lot of parameters not clearly related to each other.
The study has been supported under the R&D No. 4858 “Resource-Saving Technologies for Ecologically Safe Food Production in the Industrially Aff ected Zone in the Republic of North Ossetia – Alania” within the framework of the basic part of the governmental contract for research.

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