CONTENTS |
GEOLOGY& METODICS OF PROSPECT & EXPLORATION OF DEPOSITS |
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УДК 551.243 (571.56) Fridovskiy V.Yu.1, Gamyanin G.N.1, 2, Polufuntikova L.I.1 (1 – North-Eastern Federal University, 2 – IGEM RAS) GOLD-QUARTZ DEPOSIT SANA OF TARYNSKY ORE UNIT Established multi-stage deformation associated with a long-developing mineralized fracture zones deposit Sana. Material composition is typical of polymetallic ores such as low-sulfide gold-quartz deposits. Isolated quartz-feldspar-chlorite-pyrite-arsenopyrite and gold-galena-sphalerite-ankerite-calcite association. Described later mineralization characteristic of silver-antimony or antimony deposits monometallic synchronous late strike-slip deformations. Key words: deformation, of ore-controlling structures, gold, mineral associations, especially typomorphic. |
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УДК 551.243 (571.56) Pulyaev N.A., Loskutov E.E. (North-Eastern federal university) SHOW PROCESS REGRESSIVE METAMORPHISM ON TERRITORIES OF THE ALDANO-STANOVOGO SHIELD AND METALLOGENIC SPECIALIZATION HIS PRODUCTS Considertd process leakage retrogressive metamorphism show on territories of the Aldano-Stanovogo shield combined metamorphic difficult stationed by complexes. It establish conection aspects retrogressive metamorphism and their features, communication retrogressive metamorphism with mineralization and metallogenic specialisation diaphtoric rocks some perspectiv regions are observed. Key words: Aldano-Stanovoy shield, regressive metamorphism, diaphtoric rocks, metallogenic specialisation. |
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УДК 552.323.6:550.93:550.83(571.56) Babushkina S.A. (Institute of Diamond and Precious Metal Geology SB RAS, North-Eastern federal university) TYPOMORPHISM GARNETS THE PIPE ZAPRETNAYA Studied is the composition of garnets from lamprophyres-similar carbonatized breccia the Zapretnaya pipe. Shows the difference between them and garnet from carbonatites of different genetic types, the majority of garnets from HP-UHP metamorphic rocks of the Urals, lamprophyre Middle Timan and the Kola peninsula. Found that a number of features are similar to those of the eclogite paragenesis garnets from kimberlite breccia and garnets from alneitov the i. Malayta. Key words: garnet, lamprophyre, eclogite paragenesis, carbonatite breccia. |
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УДК 556.3.01:574.4 Polufuntikova L.I., Fridovskiy V.Y. (North-Eastern federal university) MICRODEFORMATIONS ORE-BEARING TERRIGENOUS STRATA The object of the study are clastic rocks of the Verkhoyansk complex is characterized by the development of orogenic-type gold mineralization. Morphological study of the structural indicators postsedimentary transformation and quantification of strains held at different stratigraphic levels with the use of modern techniques Strain analysis. Studies have revealed the relationship between the degree of postsedimentary transformation and the formation of different types of mineralization. Key words: deformation, microstructure, gold mines, strain-analysis. |
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УДК.549.321.12 Kulagina L.A., Farber M.R. (North-Eastern federal university) LITHOLOGY AND CHEMISM OF TERRIGENOUS ROCKS OF ONE OF ORE AREAS OF THE SOUTH-VERKHOYANSK SYNCLINORIUM The authors study lithological, physical-mechanical and petrochemical factors for rocks of terrigenous complex of South-Verkhoyansk synclinorium. The conclusion is drawn on communication of internal structure of various lithological differences with petrochemical and geochemical indicators, that can be one of the factors influencing on the locaton of mineralization. Key words: sandstones, siltstone (aleurolites), sorting coefficient, Yung’s modulus, tensile strength, petrochemical modules, forecasting, clark of concentration. |
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УДК 551.435.748 Urban A.A., Galanin A.A. (Permafrost Institute SB RAS), Chzhan T.R. (North-Eastern federal university) LITHOLOGIC-AND-MINERALOGICAL CHARACTERISTIC OF DUNE COMPLEX «KYZYL-SYRSKIY» This paper presents results of lithologic-and-mineralogical analize of dune complex. According results of grain size, mineralogical and micromorphological analyzes different genesis type of sediments were defined. And its transfer and accumulation process in Holocene were described. Key words: dune complex, lithologic-and-mineralogical characteristic, genesis. |
GEOPHYSICS |
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УДК 550.831 Berzin A.G., Tugi E.R. (North-Eastern federal university), Sitnikov V.S. (The State Committee of the Sakha Republic (Yakutia) on geology and subsoil use), Berzin S.A. (Geco-Prakla, Schlumberger Ltd.) THE UNDERFOUNDATION OIL (IN THE CONDITIONS OF THE NEPSKO-PELEDUYSKY ARCH OF NEPSKO-BOTUOBINSKY ANTECLISES) Under this title back in the nineties of the last century there was an article written by the member-correspondent of the Russian Academy of Sciences B.А. Sokolov, in which the hypothesis about possible communication fields of hydrocarbons in a number of areas of Russia, including the Nepsky arch, with sedimentary formations under allochthonous base blocks where a large hydrocarbonic potential remained unclaimed, was proposed. By results of the researches in the territory of the Nepsko-Peleduysky arch in the northern part of Nepsko-Botuobinsky anteclises the geological and geophysical arguments confirming the validity of this hypothesis and possible conceptual models of a deep structure are received and considered. Key words: the geotraverse of Batolit, a crystal plate, the foundation, Riphean deposits, the allochthonous block. |
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УДК 550.83.016 (571.56) Adarov T.D., Soloviеv E.E. (North-Eastern federal university) GEOPHYSICAL RESEARCH ORE-CONTROLLING STRUCTURES OF SOUTH VERKHOYANYA This article presents a comprehensive geophysical studies of different age Allakh-Yunskoy and the South-Verkhoyanskoy metallogenic zones. The geophysical research results of Marinsky and Elhuginsky ore fields showing as examples of separation ore-controlling structures in geophysical fields. Key words: gold, South Verkhoyane, ore occurrence, transient electromagnetic sounding, symmetric electric profiling, dipole electric profiling. |
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УДК 550.83.016 Soloviеv E.E., Kychkin V.A. (North-Eastern federal university) GEOPHYSICAL RESEARCH OF ORE CONTROLLING STRUCTURES OF TARYNSKY ORE UNIT The gravitational and magnetic fields Tarynsky ore unit are analyzed. The features of ore fields in the area of geophysical fields are established. Geophysical criteria of the regional forecast gold mineralization are allocated. The results magnetic and electro research on various objects are presents. The optimal complex of geophysical methods of prospecting and follow-up of ore-controlling structures Tarynsky ore unit are justified. Key words: the gravitational and magnetic fields, magnetic prospecting, electrical prospecting, anomalies, ore-controlling structure. |
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УДК 550.837:551.345:537 Nim Yu.A.1, Popkov P.A.2, Adarov T.D.1 (1 – North-Eastern federal university, 2 – JSC «Almazy Anabara») THE INDUCTION CAUSED POLARIZATION OF ELECTROWIRE LAYER AT ITS PULSE EXCITEMENT BY A VERTICAL MAGNETIC DIPOLE The solution of the direct problem of impulse electric prospecting for approximated model polarizing electrically conductive layer (determined taking into account the widely tested model of Cole-Cole). Key words: model, impulse, electrical prospecting, polarization, magnetic dipole. |
HYDROGEOLOGY & GEOLOGICAL ENGINEERING |
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УДК 551.345 Shepelev N.G. (The State Committee of the Sakha Republic (Yakutiya) on geology and subsoil use), Shepeleva Ya.P. (North-Eastern federal university) HYDROGEOLOGICAL CONDITIONS THE CENTRAL PART OF THE VERKHOYANO-KOLYMSKOY FOLD SYSTEM In article are resulted a data about permafrost-hydrogeological conditions of the central part of the Verkhoyano-Kolymskoy fold system. There are characteristics of main aquifers, chemical composition and formation conditions of groundwater. Include an information about the groundwater resources of the area. Key words: structural features, hydrogeological array, aquifer complex, groundwater, portioning precipitations, water exchange. |
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УДК 556.3.01:574.4 Drozdov A.V. (Yakutniproalmaz «ALROSA» Co. Ltd), Popov V.F. (North-Eastern federal university) REMOVAL OF DRAINAGE BRINES IN CRYOLITOZONE SUBSOIL DURING EXPLORATION OF DIAMOND DEPOSITS OF YAKUTIA Ways of drainage water removal coming in mine workings which are used by «ALROSA» joint-stock company on the largest diamond deposits of the Western Yakutia are observed. Permafrost-geological conditions of region and carried out ways of control allow to use the top part of cryolitozone – permafrost rocks and under-permafrost water-bearing horizons as objects for removal of mineralized drains and to perform diamond mining without a considerable damage of environment. Key words: cryolitozone, permafrost rocks, under-permafrost water-bearing horizons, drainage brines, underground basins. |
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УДК 551.243(571.56) Tretyakov M.F., Rozhin S.S., Loskutov E.E. (North-Eastern federal university), Tretyakov F.F. (Institute of Diamond and Precious Metal Geology, SB RAS) STRUCTURAL FEATURES OF THE SOUTH VERKHOYANYA AS A FACTOR OF ENGINEERING GEOLOGICAL HAZARD NEAR THE ROAD «KOLYMA» A brief description of the geological structure within the route «Kolyma». The results of the structural and geological observations in the zones of regional faults. Analyzed the most dangerous areas during construction and operations highway. Key words: South Verkhoyanye, tectonics, faults, cleavage, crushing zone. |
TECHIQUES & TECNOLOGY |
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УДК 622.283 Iudin M.M. (North-Eastern federal university) STRESS STATE OF ROCK MASSIF WITH AREA OF THAWING AND PLASTIC DEFORMATIONS The problem of determining the stress-strain massif of rocks when the inside of the plastic zone deformations of frozen rocks are formed by melt rocks area (thawing). Influence of plastic deformation of frozen rocks on the stress state of the zone of thawing around opening. Key words: massif of rocks, frozen condition, plastic deformation, a zone thawing, stress – deformed condition. |
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УДК 622.24 Skryabin R.M., Timofeev N.G. (North-Eastern federal university) ON THE METHOD OF CALCULATING THE COST OF POWER FOR DRILLING SHURFOSKVAZHIN ON THE EXPLORATION OF ALLUVIAL DEPOSITS IN PERMAFROST The possibility of calculating the cost of power for drilling large diameter (shurfoskvazhin) for the exploration of alluvial deposits in permafrost. For this purpose, a method of calculating the cost of power to a new kind of auger drilling, coring drill with interval standardized by sampling. The efficiency of reducing the power consumption of the drilling rig shurfoskvazhin to the shell. Key words: methods of calculation, power consumption, large-hole drilling, auger drilling, permafrost zone. |
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УДК 622.02 Grigorev B.V., Skryabin R.M. (North-Eastern federal university) INNOVATIVE WAYS OF IMPROVEMENT OF THE STRUCTURES ROCK-DESTRUCTIVE TOOLS FOR CORE DRILLING WITH AIR PURGE IN COMPICATED CONDITIONS Considered the issue of improving the rock-destructive tools for drilling wells in conditions of permafrost. A new design of rock cutting tool with a cutter from thermostable nanomaterials for drilling of wells with air purge. The question is considered of the technology of the soldering carbide tool with the use of nanocomposite materials. Key words: the rock cutting tool, nanomaterial, compressed air. |
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УДК 622.142(075.8) Popov G.I., Markov V.S., Roev M.N., Petrova L.V. (North-Eastern federal university) THE FEATURES OF CONDITIONS FOR HOLDING MINING IN EXPLORATION OF PLACER DEPOSITS OF YAKUTIA The features of the geological conditions of exploration placer deposits of Yakutia has been considered. In article there are the main types of working faces of mining and exploration workings. The need to study the composition of the cryogenic structure, structural and physico-mechanical properties of permafrost coarse-clastic rocks in selecting equipment and technology of mining and exploration in the North have emphasized. Key words: permafrost, placer deposits, geological conditions, mining and exploration working, working face. |
BOWELS PROTECTION & ECOLOGYBOWELS PROTECTION & ECOLOGY |
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УДК (550.46:504.54):622.371(571.56-16) Legostaeva Ya.B. (North-Eastern federal university) POSSIBLE CHANGES OF THE GEOCHEMICAL LANDSCAPES IN THE RESULT OF THE DEVELOPMENT OF KIMBERLITE FIELD UPPER MUNA IN THE TERRITORY OF THE REPUBLIC OF SAKHA (YAKUTIA) Polygonal technogenic impacts are destroying natural landscapes and dramatically enhances development of cryogenic processes. Territories with universal development of permafrost are characterized by the highest sensitivity to any kind of impact and by weak potential of self-recovering. The geochemical characteristics of cryosols as the main components of northern-taiga landscapes and their possible changes in result industrial development of kimberlite field Upper Muna were studied in the article. Key words: northern-taiga ecosystems, sustainability of natural landscapes, cryosols, amount of toxic salts, hazard class. |
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УДК 55 (063)(571.560 Pomortsev O.A.1, Gukov A.J.2, Pomortsev V.A.1, Petrova M.V.1 (1 – North-Eastern federal university, 2 – State Nature Reserve «Ust-Lenskiy») CLIMATE CHANGE AND ENGINEERING-GEOLOGICAL PROBLEMS ON «KOLYMA» HIGHWAY SOUTH VERKHOYANE The mountain part of «Kolyma» highway – 600-725 km (South Verkhoyane) in varying climate conditions was surveyed. In rain flood of July-August 2013 was proved that the existing engineering constructions for protection of highway from dangerous natural processes destroyed by flood. They require reconstructions proper to new conditions generated by global warming. Key words: highway, engineering constructions, global warming, flood wave, dangerous natural processes. |