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Vol. 12 (2009 year), No. 3

Zhirova A.M., Glaznev V.N.
Application of physical rock properties to the solution of a complex geophysical task

The paper reports the possibility of finding prospective energy sources in the Riphean and Phanerozoic sedimentations of the "coast-sea" transition zone, which needs more profound geological-geophysical research. Updated geophysical methods should be applied for exploring the whole transition zone. The proper sequence of the geophysical works can be defined on the preliminary stage of dividing the area considering earlier planned factors of forecasting. Essential for exploring the prospective transition and water areas are preparation of the drilling project and determining the location of the stratigraphic well in the Rybachiy Peninsula. The respective investigations revealed the transition zone and NE area of the Varanger-Timan fractured-folded belt being promising for hydrocarbon. Besides, the possibility to study the interaction of active fluid igneous and tectonic geosystems and measure their role in formation processes of oil and gas deposits and regularity of their occurrence has been determined.

(in Russian, стр.6, fig. 7, tables. 0, ref 10, Adobe PDF, Adobe PDF 0 Kb)

Vol. 12 (2009 year), No. 4

Kozyrev А.А., Rybin V.V., Zhirov D.V., Bilin А.L., Vinogradov А.N., Kasparian E.V., Vinogradov Yu.A., Semyonova I.E., Zhirova A.M.
Methodological principles of effective and safe open-pit mining at deep horizons of mineral deposits

The paper presents the investigation results of grindibility of copper-nickel ore sample, differences in the behavior of narrow grain size categories using rod and ball mill grinding. The characteristic mechanisms of destruction of the categories have been identified; the energy input on grinding has been estimated. Basing on the obtained data the choice of a two-stage scheme of grinding with rod mill at the first stage, and the ball mill at the second one for efficient ore preparation for flotation has been substantiated.

(in Russian, стр.10, fig. 8, tables. 0, ref 13, Adobe PDF, Adobe PDF 0 Kb)