| Annotation |
Based on the results of geological exploration and operational work on the uranium deposits of the Streltsovsky ore field, extensive material on their geological structure has been obtained. This material served as the basis for the analysis of the ore situation in deposits belonging to the hydrothermal type [2; 5]. The deposits are confined to the subsidence caldera and have similar mining and geological characteristics.
The use of systems approach during the analysis of the received information has allowed to discharge three bunches of criterions of classification of ore objects: geologic, mining-and-geological and quality.
The structural and morphological characteristics of ore formations, elements of their occurrence are classified as geological [3].
As mining and geological features, the following are considered: fracturing of rocks and ores, strength coefficient, stability, average power, variability of ore contours, complexity of ore objects.
The qualitative characteristics include the content of uranium in ores, the share of metal reserves in technological grades of ores.
In the course of research, the relationships between various classification features that can be expressed by mathematical formulas are obtained. Knowing the quantitative characteristics of ore formations, it is possible to predict the parameters of ore bodies, the use of various geotechnologies for the development of these ore objects.
The analysis of all combination of performances hydrothermal uranium ores of the deposits Streltsovsky allows to divide all variety of ore educations into three types: I - powerful, II – medium power, III - low power. The combination of personal performances, inherent in each phylum, enables to justify original technologies of mining for each type of ore educations. Is established, that defining performances of classification of ore educations is the value of a mean power, thus character the convergence of reserves of ore on classes of power for each type is original, mean contents of uranium in ore object and character of convergence of reserves of metal in each class of the contents. Auxiliary performances of ore educations are a parameter of variability of an ore circuit, quotient of complication of ore body, quotient of dispersion of ore bodies in reservoir, the ore circuits’ confirmability from a section to a section. In practical and methodological terms, the proposed classification of ore objects makes it possible: to make a forecast of the development conditions at the stage of geological exploration; to use the regularities and characteristics inherent in each type of ore formations individually when justifying technical solutions
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| References |
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