Current paper presents semi-empirical and quantum chemistry theoretical investigations of Al atoms energy occurrences in CaSiO₃ and MgSiO₃ with perovskites structures under Earth’s mantle thermodynamic conditions. The phase diagram of CaSiO₃ was reproduced and refined. Possible mechanisms of aluminum atoms incorporation into structures were investigated. The results of the calculations indicate that aluminum is preferably included in the MgSiO₃ than СaSiO₃. Perovskite phases isomorphic capacity evaluation for Al showed that in MgSiO₃ this value can reach 2.4 mol.% at 120 GPa and 2400 K. CaSiO₃ can’t be a container for the aluminum atoms in the Earth’s mantle.

Stratigraphic scheme of the division (at the level of formation) of Triassic to Neogene deposits of the central part of Crimea based upon generalizations of our own results and analysis of published and unpublished data was proposed.

The article establishes and realizes an idea of definition of the initial provenance signal for the Southern Urals Taratash block using isotope dating of the zircons in the Archean and Early Proterozoic magmatic and metamorphic rocks. The work takes into account 132 data for which the discordance did not exceed 10%. We obtained a probability density diagram for zircon ages, which we used firstly for comparison with detrital zircons ages from the sandstones of lower riphean Ay suite, and secondly, with density of the zircon ages in the metamorphic rocks of the Aleksandrovsky block located to the east. The similarity of distributions was verified by means of the Kolmogorov-Smirnov test.

The main results of microscopic studying of samples of the felsic volcanic of sarbay formation (O₂-S₁ sb) of The South Urals composing the top horizons of the formation are shown in the article. Detailed research of samples and the analysis of results of the silicate analysis of these rocks showed their volcanogenic genesis, and this samples have been diagnosed as the volcanic glass, which passed some stages of changes. Three neogenic structural and textural types of a mineralization were defined: spherulitic (felsophyric), axiolitic and felsitic.

The results of researches on uranium of Dictyonema shale of the Kajbolovo-Gostilitsky area of Baltic basin of shale and phosphorites (Leningrad region) are presented. Features uranium ore on the area and in sedimentary rock sequence of Pakerort horizon of early Ordovician Period are revealed. High concentrations of uranium in a layer of Dictyonema shale are determined, correlation of uranium with other elements are defined, probable conditions uranium ore genesis are described, look-ahead resources of uranium within the limits of the studied area are estimated.

Models of copper-porphyry deposits formation examined from the petrological and geochemical points of view. The principal differences between the models are time and mechanism of sulfide ore precipitation and the composition of ore-bearing fluid. It is shown that copper-rich fluid inclusions contain insufficient amount of sulfur for sulfide ore formation and it have to be independent source of sulfur for copper-porphyry deposits formation.

In this paper the temperature treatment impact on Bazhenov formation core samples are shown. Impact was performed by pyrolysis in a temperature range of 300-480 °C and in the closed autoclave in the presence of water at reservoir pressure. It is shown that as a result of thermal exposure at 400 °C pyrolytic peak S2 is reduced by 90-95% and generation potential of rocks almost completely implemented. The microtomographic samples studies combined with scanning electron microscopy allowed to establish the dependence of permeability and porosity of the rocks. It demonstrated that even at 350 °C the fracture system formed in core samples also the porosity and permeability due to impact may increase from several times to several ten times. The results will allow for a more accurate simulation of enhanced oil recovery treatment on Bazhenov formation rocks to increase oil recovery.

Using the example of lower nutovsky thickness on Odoptu field discusses the possibility and efficacy of sequence-stratigraphic approach to integrated interpretation of seismic data and drilling materials. Sequence stratigraphic model, graph showing sea level changes and regional chronostratigraphic correlation chart with reference to the existing geochronological scale was developed for the formation of the sedimentary cover in the research area.

The success of drilling oil and gas wells is largely determined by the presence of high HC-content and permeability of the reservoir at the point of penetration. For a reliable study of these characteristics should be used microseismic emission and the scattered reflection waves. For their observation, selection and positioning in geomedium we developed technology “Seismic Location of Emission Centers” and “Side-View Seismic Location”, which significantly extend the range of problems solved during seismic exploration of hydrocarbon deposits. Examples of application of these technologies in the exploration and development of hydrocarbon deposits are provided.

The carried out structural and geomorphologic analysis including visual and computer interpretation of the topographic maps and space images supplemented by statistical processing of the results, allowed to reveal arch-block style of the latest structures of the central part of the West-Siberian plate. The kinematics, the formation and the nature of the relationship of the modern structures with ancient ones were determined. It was revealed that neotectonic structure is forming due to submeridional stress.

The paper presents a research approach to study the ion-salt complex composition of the Bazhenov shales of the Western Siberia. The approach is based on application of the water and ammonium extracts of the rock samples with the natural moisture content, after the heating and storage, the X-ray spectrometry and high-resolution mass spectrometer with inductively-coupled plasma ionization. It was found that the water extracts composition from the natural Bazhenov rocks is a sulfate sodium bicarbonate type with high content of silic acid and slightly alkaline pH values. The solid and liquid contents of barium, boracium, zinc, vanadium, uranium, arsenic are in excess of their percentage abundance more than in 2-10 times. The barium content in pore water is higher than strontium content in 10 times. It was mesured that a sodium dominates in the rock exchange complex, the cation exchange capacity is 14-19 meq/100 g.