On the basis of a large volume of materials the basic parameters of oil shale quality, prerequisites of oil shale accumulation, confinement to geostructures of oil shale formations, regularities of oil shale distribution in the area and in the section of basins, deposits, regions and possibilities of their complex utilization are given.

Dolomitization of phosphorite ores increases the content of MqO, which worsens the quality of ores and in some cases makes them substandard, off-balance sheet. Some local areas of the deposit are subject to dolomitization. Naturally, it is desirable to identify them in the process of exploration work and exclude them from the balance reserves. ...

The territory of Pavlodar Priirtyshie is confined to the north-eastern part of East Kazakhstan. The Carboniferous and Permian sediments composing it are almost everywhere overlain by a cover of loose Mesozoic and Cenozoic sediments. Therefore, the geological survey and prospecting works carried out here, the purpose of which is to clarify the geological structure to identify minerals, are associated with drilling.

The Nizhne-Aldansky District is located in the southeastern part of the Lena basin, east of the Tumara and Lena rivers.