Methodology of geological zoning of orogenic belts, adequate to mobilistic paradigma, should be in a natural way correspond to geodynamics conception, taking into consideration the positions of lithospheric plate tectonics. For this purpose the methodology of tectonic-geodynamical zoning is being suggested. The base of such zoning is the distinguishing of zones with associations of one-type geodynamical regimes and environments and their structural combinations during the formation on the crust of oceanic type and localization in interplate position or on the boundaries of tectonic plates as a result of horizontal dislocations with the accretion and collision process manifestation. In its turn at the continental type crust in stable regimes folded systems have been formed. On this basis the particularities of tectonic-geodynamic zoning of the Ural-Timan-Paleoasian segment of Eurasia have been considered, general scheme of its zoning has been given as an example of the suggested methodology usage. A segment can be considered as a genotype of orogenic belts, being formed at the expense of the plate-tectonic accretion of oceanic basin on the craton periphery.

The Irendyk formation is wide spread in the West-Magnitogorsk zone. It extends in submeridional direction continuously from the border of the Orenburg region to the latitude of Miass city. The previous researchers compare Irendyk volcanic rocks with modern island arcs. According to petrogeochemical data of the Irendyk basalts the authors are attributed them to two types nearly equal to island arc and intraplate mantle.

New data on the Paleoproterozoic noble metal bearing structural-material complexes and their parageneses in ferrugineous quartzites and black shales ore districts of KMA which are spatially separated and different in composition of host rocks are presented. A multi-stage formation of noble-metal types of ores is established; the same type of composition of the mineral phases in the ferruginous quartzites, shales and their metasomatites which is indicated its as a part of a single long developing ore-forming system were determined. The generalized model of the formation of the noble metal bearing system in case of a genetically variable sources of material is given.

The results of the study of mediosiliceous and mafic metasomatites located in ultramafic and mafic rocks Nyaschevo massif presents in the paper. The texthural and structural features of these rocks allow to attribute them to tectonites - protomylonites and mylonites. Mineralogical and geochemical characteristics of the rocks indicate to polycyclic process of metamorphism accompanied by metasomatic transformation. The metasomatites of medium composition have been characterized the primary of magmatic origins followed by metamorphic and regional deformation processes associated with metasomatic transformation (gedrite, cummingtonite ( T = 800-700°С, P = 2-5 kbar)).The metasomatites of mafic composition are the result of mylonitization and metasomatism under the influence of fluid induced the mobility of elements, such as Al, Ti, К, Ba and LREE. The input Mg from host serpentinites on the final stages of conversion is clear recorded in the forming of gedrite and height-magnesium enstatite. The metasomatites of mafic composition is showed the petrogeochemical connection with the rocks of syenite-carbonatite association.

In this paper based on new petrochemical and geochemical data with specificity in the compositions of rock-forming and ore minerals were determine the conditions of formation of Ti-Fe-V mineralization in the two-pyroxene gabbro of Medvedevskoje deposit. Two stages of formation of abundant mineralization in two-pyroxene gabbro as well fs in the rhythmically stratified amphibole-saussuritizated gabbro of mentioned deposit were distinguished: early cumulatively-magmatic stage and late-magmatic (subsolidus) stage. Staging of ore-genesis during the late-magmatic phase is related to the non-equilibrium of residual fluidized melt enriched with water and chlorine with regard to the previously allocated primary rock-forming and ore minerals (pyroxene, plagioclase, titanomagnetite and ilmenite) which formed a primary magmatic frame and layering of ore-bearing rocks.

A multidisciplinary study of the Oleninskoe and Nyalm-1 gold occurrences located in the Kolmozero-Voronya greenstone belt (Kola region) has been carried out. These gold occurrences are interpreted as orogenic and connected with a complex of gabbrodiorite-diorite-granodiorite-quartz porphyry minor intrusions. U-Pb age of zircon from a quartz porphyry dyke in the Oleninskoe occurrence is 2828 ± 8 Ma. An identical age of 2825 ± 7 Ma has been yielded by zircon from a granodiorite porphyry hosting the Nyalm-1 gold mineralization. The gold mineralization was formed in the Neoarchean time after the crystallization of minor intrusions ≈2.83 Ga ago and before the formation of tourmaline-bearing granites and rare-metal pegmatite veins (both dated at ≈2.5 Ga), during hydrothermal alteration of rocks at the retrograde stage of regional metamorphism. Rb-Sr isochron age 2779 ± 72 Ma, obtained for the whole rock samples and apatite from the Nyalm-1 granodiorite porphyry, probably is close to the age of this event. Values of ε_Nd( t ) calculated for granodiorite-porphyries from the Oleninskoe and Nyalm-1 gold occurrences vary from +0.01 to +2.63, suggesting that their parental magma originated from a mantle source and that an addition of crust material was not significant.

Additional regional electromagnetic field studies have been carried out in the northern section of the Urals. As a result of processing and interpretation of experimental materials on the basis of computational modeling of electromagnetic fields the geoelectric section of the upper part of the litosphere along Serov geotraverse is constructed. Physical properties of rocks (specific electrical resistivity, density and porosity) of the Urals and adjacent platforms are generalized. Dependences between the physical properties received on observed data on core sample of wells and land methods of electrometry are investigated. The electrogravitational model of the Earth’s crust on the basis of geoelectric structure using gravity data is developed. The received data allow to replenish, and in a number of cases to specify available geological and geophysical data on composition and structure of the Earth’s crust of Northern Urals.

It was determined that in the upper part of Earth crust up to 500-600 m depth the rock mass stressed state in some areas may correspond to the A. Geim, A.D. Dinnik, N. Hast hypotheses, as well the hypotheses developed in UB RAS and is mean interchanged for 11 year cycle of solar terrestrial relations. During this cycle 2-3 years rock mass consolidation is observed, and progress on displacement is absent or very small; then rock mass compession decreases for 3-4 years and is accompanied by an array of fault events, after that rock mass consolidation is again observed for 1-2 years. Further, both rock mass and earth’s crust compression increases for 4-5 years accompanied by thrust phenomena. The analysis of stresses values in the elements of mining systems shows that by 2020-2030 years the access to minerals in these workings at over 500 m depth will be difficult.

The results of investigations on pressure distribution both on belt pillars and soil of adjacent mined-out areas are cited when sedimentary type flat and sloping deposits are mined by subsurface operations. As a result of the analysis of mine instrumental measurements and equivalent materials modeling the tangent pressure angle dependence from the ratio of vertical geostatic pressure to average rock mass strength is determined. The equations are set up for solving the task of pressure distribution on pillars of different width having elastic area and sites with limiting conditions or being completely in limiting state. The influence of time factor is taken into account. The obtained results permit to perform a more reliable estimation of the pillars state depending on their width and adjacent mined-out areas dimensions with due regard for key mining-geological and mining-technical factors.

The data on presence of monzonites in world famous Ilmenogorsky alkaline complex are absent in the literature. The paper informes on the first find of such rocks in Ilmeny Mountains (northwest coast of Lake Bolshoje Miassovo, pit 287 of Ilmeny State Reserve (N - 50є10'18.0'', E - 60є15'57.9''). This outcrop is outside of miaskite massif and settles down in a tract of blastomylonites which develops on the rocks of gneissic-amphibolite Ilmenogorsky sequence and granitoid dikes. Biotite quartz monzonites compose of a dike of 280 cm thickness, dissecting the block of coarse-grained calcite-dolomite carbonatites. Chemical and minerals composing monzonites, the petrographic description them are outlined.

A hydrothermal interaction of oceanic rocks with seawater was simulated in the Selektor program at 350°C and 25 MPa. It was found that the maximum extraction of major ore-forming elements of massive sulfide deposits from basalts occurs under reducing conditions: 2.9 Ч 10^-3 mol Fe at ξ = -lg(rock/seawater) of 2.1, 3.3 Ч Ч 10^-4 mol Zn at ξ = 0.625 and 5.02 Ч 10^-5 mol Cu at ξ = 1.4. The major transport complexes of these elements in hydrothermal fluids are FeCl₂⁰ > FeCl⁺ > Fe²⁺, ZnCl⁺ > ZnCl₂⁰ > ZnCl₃^-, CuCl₃^2- > CuCl₂^-. According to recycling model, the mafic rocks (gabbro, basalts) are the most likely source of metals for hydrothermal sulfide systems.